/* Main Stylesheet for Sync Licensing Audio Analyzer & Tagger */
/* Reset & Base Styles */
    html { scrollbar-gutter: stable; }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --bg-deep:       #070a13;
      --bg-surface:    #0d1120;
      --bg-card:       rgba(255, 255, 255, 0.04);
      --border:        rgba(255, 255, 255, 0.08);
      --border-cyan:   rgba(6, 182, 212, 0.3);
      --border-focus:  rgba(6, 182, 212, 0.6);
      --accent-cyan:   #06b6d4;
      --accent-gold:   #c5a059;
      --accent-purple: #a855f7;
      --color-success: #10b981;
      --color-warning: #f59e0b;
      --color-error:   #ef4444;
      --text-primary:  #f0f4ff;
      --text-secondary:#94a3b8;
      --text-muted:    #7887a5;
      --text-main:     #f0f4ff;
      --gradient-main: linear-gradient(135deg, #06b6d4 0%, #818cf8 50%, #c5a059 100%);
      --font-main:     'Outfit', sans-serif;
      --font-body:     'Inter', sans-serif;
      --font-heading:  'Outfit', sans-serif;
    }
    
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-body);
      background: var(--bg-deep);
      color: var(--text-primary);
      min-height: 100vh;
      overflow-x: hidden;
    }
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                  radial-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      background-position: 0 0, 20px 20px;
      pointer-events: none;
      z-index: -2;
      animation: bgScroll 180s linear infinite;
    }
    @keyframes bgScroll {
      from { background-position: 0 0, 20px 20px; }
      to { background-position: 1000px 2000px, 1020px 2020px; }
    }

    /* Ambient background Orbs */
    .bg-orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
    .bg-orbs.parallax-scroll {
      transition: transform 0.15s cubic-bezier(0.25, 0.8, 0.25, 1) !important;
      will-change: transform;
    }
    .orb {
      position: absolute; border-radius: 50%;
      filter: blur(120px); opacity: 0.12;
      animation: drift 25s ease-in-out infinite alternate;
    }

    /* Particles Container & Sparkling floating elements */
    .particles-container {
      position: fixed !important;
      inset: 0 !important;
      width: 100% !important;
      height: 100% !important;
      z-index: -1 !important;
      pointer-events: none;
      overflow: hidden;
    }
    .particle {
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
      animation: floatParticle 10s infinite linear;
    }
    @keyframes floatParticle {
      0% { transform: translateY(100vh) translateX(0) scale(0.8); opacity: 0; }
      10% { opacity: 0.6; }
      90% { opacity: 0.6; }
      100% { transform: translateY(-10vh) translateX(100px) scale(1.2); opacity: 0; }
    }
    .orb-1 { width: 600px; height: 600px; background: var(--accent-cyan); top: -100px; left: -150px; will-change: transform; }
    .orb-2 { width: 500px; height: 500px; background: var(--accent-purple); bottom: -100px; right: -100px; animation-delay: -7s; will-change: transform; }
    .orb-3 { width: 350px; height: 350px; background: var(--accent-gold); top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: -14s; will-change: transform; }
    /* C4 FIX: removed duplicate @keyframes drift that was here — canonical version is at line 345 */

    /* Executive Header */
    header, .app-header {
      background: rgba(7, 10, 19, 0.85) !important;
      backdrop-filter: blur(24px) saturate(200%) !important;
      -webkit-backdrop-filter: blur(24px) saturate(200%) !important;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
      padding: 0 28px !important;
      height: 68px !important;
      display: flex !important;
      align-items: center !important;
      justify-content: space-between !important;
      position: sticky !important;
      top: 0 !important;
      z-index: 1000 !important;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5) !important;
    }

    .header-logo {
      display: flex !important;
      align-items: center !important;
      gap: 12px !important;
      text-decoration: none !important;
      transition: transform 0.2s ease !important;
    }

    .header-logo:hover {
      transform: translateY(-1px) !important;
    }

    .logo-svg-mark {
      width: 32px !important;
      height: 32px !important;
      filter: drop-shadow(0 0 10px rgba(6, 182, 212, 0.45)) !important;
      transition: filter 0.25s ease !important;
    }

    .header-logo:hover .logo-svg-mark {
      filter: drop-shadow(0 0 16px rgba(6, 182, 212, 0.75)) !important;
    }

    .logo-title {
      font-family: 'Outfit', sans-serif !important;
      font-weight: 800 !important;
      font-size: 1.15rem !important;
      letter-spacing: 0.06em !important;
      background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%) !important;
      -webkit-background-clip: text !important;
      -webkit-text-fill-color: transparent !important;
      line-height: 1.1 !important;
    }

    .logo-sub {
      font-family: 'Outfit', sans-serif !important;
      font-size: 0.62rem !important;
      font-weight: 700 !important;
      letter-spacing: 0.14em !important;
      color: #06b6d4 !important;
      text-transform: uppercase !important;
      line-height: 1 !important;
      margin-top: 2px !important;
    }

    .header-nav {
      display: flex !important;
      align-items: center !important;
      gap: 8px !important;
    }

    .header-nav .nav-link, .header-nav a {
      font-family: 'Outfit', sans-serif !important;
      font-size: 0.86rem !important;
      font-weight: 600 !important;
      color: #94a3b8 !important;
      text-decoration: none !important;
      padding: 7px 16px !important;
      border-radius: 20px !important;
      border: 1px solid transparent !important;
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
    }

    .header-nav .nav-link:hover, .header-nav a:hover {
      color: #ffffff !important;
      background: rgba(255, 255, 255, 0.06) !important;
      border-color: rgba(255, 255, 255, 0.1) !important;
    }

    .header-nav .nav-link.active, .header-nav a.active {
      color: #06b6d4 !important;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(168, 85, 247, 0.1) 100%) !important;
      border-color: rgba(6, 182, 212, 0.35) !important;
      box-shadow: 0 0 16px rgba(6, 182, 212, 0.15) !important;
    }

    .header-actions {
      display: flex !important;
      align-items: center !important;
      gap: 12px !important;
    }

    .nav-account-btn, .btn-launch-nav {
      display: inline-flex !important;
      align-items: center !important;
      gap: 8px !important;
      font-family: 'Outfit', sans-serif !important;
      font-size: 0.84rem !important;
      font-weight: 700 !important;
      color: #ffffff !important;
      text-decoration: none !important;
      padding: 8px 18px !important;
      border-radius: 10px !important;
      background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #818cf8 100%) !important;
      border: 1px solid rgba(255, 255, 255, 0.2) !important;
      box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3) !important;
      transition: all 0.2s ease !important;
      white-space: nowrap !important;
    }

    .nav-account-btn:hover, .btn-launch-nav:hover {
      transform: translateY(-1px) !important;
      box-shadow: 0 6px 22px rgba(6, 182, 212, 0.5) !important;
      filter: brightness(1.08) !important;
    }

    .nav-menu-wrapper {
      position: relative !important;
    }

    .nav-menu-trigger {
      background: rgba(255, 255, 255, 0.05) !important;
      border: 1px solid rgba(255, 255, 255, 0.12) !important;
      color: #cbd5e1 !important;
      width: 36px !important;
      height: 36px !important;
      border-radius: 10px !important;
      display: flex !important;
      align-items: center !important;
      justify-content: center !important;
      cursor: pointer !important;
      transition: all 0.2s ease !important;
    }

    .nav-menu-trigger:hover {
      background: rgba(255, 255, 255, 0.12) !important;
      border-color: rgba(6, 182, 212, 0.4) !important;
      color: #06b6d4 !important;
      box-shadow: 0 0 12px rgba(6, 182, 212, 0.2) !important;
    }

    .nav-menu-dropdown {
      position: absolute !important;
      top: calc(100% + 10px) !important;
      right: 0 !important;
      width: 240px !important;
      background: rgba(15, 23, 42, 0.95) !important;
      backdrop-filter: blur(24px) !important;
      -webkit-backdrop-filter: blur(24px) !important;
      border: 1px solid rgba(255, 255, 255, 0.14) !important;
      border-radius: 14px !important;
      box-shadow: 0 16px 48px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05) !important;
      padding: 8px !important;
      z-index: 2000 !important;
      display: flex !important;
      flex-direction: column !important;
      gap: 3px !important;
    }

    .nav-menu-dropdown.hidden {
      display: none !important;
    }

    .nav-menu-dropdown a {
      font-family: 'Inter', sans-serif !important;
      font-size: 0.84rem !important;
      font-weight: 500 !important;
      color: #cbd5e1 !important;
      text-decoration: none !important;
      padding: 10px 14px !important;
      border-radius: 8px !important;
      display: flex !important;
      align-items: center !important;
      gap: 10px !important;
      transition: all 0.15s ease !important;
    }

    .nav-menu-dropdown a svg {
      color: #06b6d4 !important;
      transition: transform 0.15s ease !important;
    }

    .nav-menu-dropdown a:hover {
      background: rgba(255, 255, 255, 0.08) !important;
      color: #ffffff !important;
    }

    .nav-menu-dropdown a:hover svg {
      transform: translateX(2px) !important;
    }

    /* === Online / Offline Privacy Toggle === */
    .network-toggle-btn {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-family: var(--font-main);
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      padding: 5px 12px 5px 8px;
      border-radius: 20px;
      border: 1px solid rgba(255,255,255,0.1);
      background: rgba(255,255,255,0.04);
      color: var(--text-secondary);
      cursor: pointer;
      transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
      backdrop-filter: blur(10px);
      white-space: nowrap;
      position: relative;
      overflow: hidden;
    }
    .network-toggle-btn::before {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: inherit;
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .network-toggle-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,0.3); }
    .network-toggle-btn:active { transform: translateY(0); }

    /* Offline state (default/safe) */
    .network-toggle-btn.offline {
      border-color: rgba(239, 68, 68, 0.3);
      color: #ef4444;
    }
    .network-toggle-btn.offline:hover { box-shadow: 0 4px 18px rgba(239,68,68,0.2); }

    /* Online state */
    .network-toggle-btn.online {
      border-color: rgba(16, 185, 129, 0.4);
      background: rgba(16, 185, 129, 0.08);
      color: #10b981;
      box-shadow: 0 0 12px rgba(16,185,129,0.15);
    }
    .network-toggle-btn.online:hover { box-shadow: 0 4px 20px rgba(16,185,129,0.25); }

    /* Animated pulsing dot */
    .network-toggle-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: currentColor;
      flex-shrink: 0;
      position: relative;
    }
    .network-toggle-dot::after {
      content: '';
      position: absolute;
      inset: -3px;
      border-radius: 50%;
      background: currentColor;
      opacity: 0;
    }
    .network-toggle-btn.online .network-toggle-dot::after {
      animation: networkPulse 1.8s ease-in-out infinite;
    }
    @keyframes networkPulse {
      0% { opacity: 0.6; transform: scale(1); }
      100% { opacity: 0; transform: scale(2.4); }
    }

    /* Tooltip on hover */
    .network-toggle-btn[title]:hover::after {
      content: attr(data-tooltip);
      position: absolute;
      top: calc(100% + 8px);
      left: 50%;
      transform: translateX(-50%);
      background: rgba(13, 17, 32, 0.96);
      color: var(--text-primary);
      font-size: 0.72rem;
      font-weight: 400;
      padding: 6px 10px;
      border-radius: 8px;
      border: 1px solid var(--border);
      white-space: nowrap;
      pointer-events: none;
      z-index: 200;
    }

    /* CLAP AI Engine Button styling */
    .clap-model-btn {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-family: var(--font-main);
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      padding: 5px 12px 5px 8px;
      border-radius: 20px;
      border: 1px solid rgba(6, 182, 212, 0.3);
      background: rgba(6, 182, 212, 0.04);
      color: #06b6d4;
      cursor: pointer;
      transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
      backdrop-filter: blur(10px);
      white-space: nowrap;
      position: relative;
    }
    .clap-model-btn:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(6,182,212,0.25); }
    .clap-model-btn:active { transform: translateY(0); }

    .clap-model-btn.not-downloaded {
      border-color: rgba(6, 182, 212, 0.3);
      color: #06b6d4;
    }

    .clap-model-btn.downloading {
      border-color: rgba(59, 130, 246, 0.4);
      background: rgba(59, 130, 246, 0.08);
      color: #3b82f6;
    }

    .clap-model-btn.ready {
      border-color: rgba(168, 85, 247, 0.4);
      background: rgba(168, 85, 247, 0.1);
      color: #a855f7;
      box-shadow: 0 0 12px rgba(168,85,247,0.2);
    }
    
    .clap-model-btn .clap-model-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: currentColor;
      flex-shrink: 0;
      position: relative;
    }
    .clap-model-btn .clap-model-dot::after {
      content: '';
      position: absolute;
      inset: -3px;
      border-radius: 50%;
      background: currentColor;
      opacity: 0;
    }
    .clap-model-btn.downloading .clap-model-dot::after {
      animation: clapPulse 1.5s ease-in-out infinite;
    }
    @keyframes clapPulse {
      0% { opacity: 0.6; transform: scale(1); }
      100% { opacity: 0; transform: scale(2.4); }
    }
    
    /* Dynamic AI Badge tag next to metadata */
    .ai-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 0.65rem;
      font-weight: 700;
      text-transform: uppercase;
      padding: 2px 6px;
      border-radius: 4px;
      letter-spacing: 0.05em;
      margin-left: 8px;
      vertical-align: middle;
    }
    .ai-badge.clap {
      background: rgba(168, 85, 247, 0.15);
      color: #c084fc;
      border: 1px solid rgba(168, 85, 247, 0.25);
    }
    .ai-badge.dsp {
      background: rgba(156, 163, 175, 0.1);
      color: #9ca3af;
      border: 1px solid rgba(156, 163, 175, 0.15);
    }

    /* Page Wrapper */
    .page { position: relative; z-index: 1; padding-top: 64px; min-height: 100vh; }

    /* Hero */
    .hero {
      padding: 60px 24px 30px;
      text-align: center;
      max-width: 800px; margin: 0 auto;
    }
    .tag {
      display: inline-flex; align-items: center; gap: 8px;
      background: rgba(197, 160, 89, 0.1); border: 1px solid rgba(197, 160, 89, 0.25);
      color: var(--accent-gold); font-family: var(--font-main);
      font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
      padding: 6px 14px; border-radius: 100px; margin-bottom: 20px;
    }
    .hero h1 {
      font-family: var(--font-main); font-size: clamp(2rem, 4.5vw, 3.2rem);
      font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; margin-bottom: 14px;
    }
    .gradient-text {
      background: var(--gradient-main);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    }
    .hero p {
      font-size: 1.05rem; color: var(--text-secondary); line-height: 1.6; max-width: 600px; margin: 0 auto;
    }

    /* Main Container */
    .container { max-width: 1550px; margin: 0 auto; padding: 0 24px 80px; }

    .main-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 24px;
      overflow: hidden;
      position: relative;
      box-shadow: 0 32px 64px rgba(0,0,0,0.4);
    }

    /* Upload Zone */
    .upload-zone {
      padding: 80px 40px;
      display: flex; flex-direction: column; align-items: center;
      text-align: center; gap: 16px;
      border: 2px dashed rgba(6, 182, 212, 0.25);
      border-radius: 20px; margin: 32px; cursor: pointer;
      transition: border-color 0.25s, background 0.25s;
    }
    .upload-zone:hover, .upload-zone.dragover {
      border-color: var(--accent-cyan);
      background: rgba(6, 182, 212, 0.04);
    }
    .upload-icon {
      width: 72px; height: 72px;
      background: rgba(6, 182, 212, 0.1); border: 1px solid rgba(6, 182, 212, 0.2);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      color: var(--accent-cyan); font-size: 2rem;
      animation: float 4s ease-in-out infinite;
    }
    @keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
    .upload-zone h2 { font-family: var(--font-main); font-size: 1.4rem; font-weight: 700; }
    .upload-zone p { color: var(--text-secondary); font-size: 0.9rem; }
    
    .btn-select {
      background: linear-gradient(135deg, #06b6d4, #818cf8);
      color: #fff; font-family: var(--font-main); font-size: 0.95rem; font-weight: 700;
      padding: 12px 30px; border-radius: 10px; cursor: pointer;
      border: none; margin-top: 8px;
      box-shadow: 0 4px 16px rgba(6, 182, 212, 0.2);
    }

    /* Processing Screen */
    .processing-zone {
      padding: 80px 40px;
      display: flex; flex-direction: column; align-items: center; gap: 24px;
      text-align: center;
    }

    /* Airtight Audio Vinyl & Spectrum Progress Visualizer */
    .airtight-status-eq {
      display: inline-flex;
      align-items: flex-end;
      gap: 3px;
      height: 18px;
      padding: 0 2px;
    }
    .airtight-status-eq .eq-bar {
      width: 4px;
      height: 100%;
      background: linear-gradient(to top, var(--accent-cyan), #a855f7);
      border-radius: 2px;
      animation: statusEqBounce 1.2s ease-in-out infinite;
      box-shadow: 0 0 8px rgba(6, 182, 212, 0.7);
    }
    .airtight-status-eq .eq-bar:nth-child(1) { animation-delay: 0.1s; }
    .airtight-status-eq .eq-bar:nth-child(2) { animation-delay: 0.4s; }
    .airtight-status-eq .eq-bar:nth-child(3) { animation-delay: 0.25s; }
    .airtight-status-eq .eq-bar:nth-child(4) { animation-delay: 0.5s; }

    @keyframes statusEqBounce {
      0%, 100% { height: 4px; opacity: 0.5; }
      50% { height: 18px; opacity: 1; filter: brightness(1.3); }
    }

    .airtight-vinyl-visualizer {
      position: relative;
      width: 80px;
      height: 80px;
      margin: 0 auto 16px auto;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .airtight-vinyl-visualizer .vinyl-disc {
      position: absolute;
      inset: 0;
      border-radius: 50%;
      background: radial-gradient(circle, #090d16 0%, #030712 100%);
      border: 2px solid rgba(6, 182, 212, 0.4);
      box-shadow: 0 0 25px rgba(6, 182, 212, 0.3), inset 0 0 15px rgba(0, 0, 0, 0.8);
      animation: vinylRotate 3s linear infinite;
    }
    .airtight-vinyl-visualizer .vinyl-disc .groove {
      position: absolute;
      border-radius: 50%;
      border: 1px dashed rgba(6, 182, 212, 0.25);
    }
    .airtight-vinyl-visualizer .vinyl-disc .groove.ring-1 { inset: 8px; }
    .airtight-vinyl-visualizer .vinyl-disc .groove.ring-2 { inset: 18px; border-style: dotted; }
    .airtight-vinyl-visualizer .vinyl-disc .groove.ring-3 { inset: 26px; }
    .airtight-vinyl-visualizer .vinyl-center {
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      width: 24px; height: 24px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-cyan), #a855f7);
      display: flex; align-items: center; justify-content: center;
      box-shadow: 0 0 12px rgba(6, 182, 212, 0.8);
      z-index: 2;
    }
    .airtight-vinyl-visualizer .vinyl-center .center-badge {
      font-size: 0.7rem;
      color: #000;
      font-weight: 900;
      line-height: 1;
    }
    .airtight-vinyl-visualizer .spectrum-bars {
      position: absolute;
      z-index: 3;
      display: flex;
      align-items: flex-end;
      gap: 3px;
      height: 28px;
    }
    .airtight-vinyl-visualizer .spectrum-bars .bar {
      width: 4px;
      background: linear-gradient(to top, var(--accent-cyan), #f43f5e);
      border-radius: 3px;
      animation: spectrumDance 1s ease-in-out infinite;
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.8);
    }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b1 { animation-delay: 0.1s; }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b2 { animation-delay: 0.3s; }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b3 { animation-delay: 0.5s; }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b4 { animation-delay: 0.2s; }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b5 { animation-delay: 0.4s; }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b6 { animation-delay: 0.15s; }
    .airtight-vinyl-visualizer .spectrum-bars .bar.b7 { animation-delay: 0.35s; }

    @keyframes vinylRotate {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    @keyframes spectrumDance {
      0%, 100% { height: 6px; opacity: 0.4; }
      50% { height: 28px; opacity: 1; filter: brightness(1.4); }
    }

    .spinner {
      display: none !important;
    }

    /* Advanced Audio Loader Animation */
    .audio-loader {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      height: 80px;
      margin-bottom: 10px;
    }
    .audio-loader .bar {
      width: 6px;
      height: 20px;
      background: linear-gradient(to top, var(--accent-cyan), var(--accent-purple));
      border-radius: 4px;
      animation: bounce 1s ease-in-out infinite;
    }
    .audio-loader .bar:nth-child(1) { animation-delay: 0.1s; }
    .audio-loader .bar:nth-child(2) { animation-delay: 0.2s; }
    .audio-loader .bar:nth-child(3) { animation-delay: 0.3s; }
    .audio-loader .bar:nth-child(4) { animation-delay: 0.4s; }
    .audio-loader .bar:nth-child(5) { animation-delay: 0.3s; }
    .audio-loader .bar:nth-child(6) { animation-delay: 0.2s; }
    .audio-loader .bar:nth-child(7) { animation-delay: 0.1s; }

    @keyframes bounce {
      0%, 100% {
        height: 20px;
        transform: scaleY(1);
      }
      50% {
        height: 70px;
        transform: scaleY(1.1);
        background: linear-gradient(to top, var(--accent-purple), var(--accent-gold));
      }
    }

    /* Confidence indicators */
    .confidence-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      margin-left: 6px;
      vertical-align: middle;
      box-shadow: 0 0 8px currentColor;
    }
    .confidence-high { background-color: #10b981; color: #10b981; }
    .confidence-medium { background-color: #f59e0b; color: #f59e0b; }
    .confidence-low { background-color: #ef4444; color: #ef4444; }

    /* Validation inputs and errors */
    .input-invalid {
      border-color: #ef4444 !important;
      box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2) !important;
    }
    .input-error-text {
      color: #f87171;
      font-size: 0.75rem;
      margin-top: 4px;
      display: block;
      font-weight: 500;
    }

    /* AcoustID Banner visibility override */
    #acoustidBanner:not(.hidden) {
      display: flex !important;
    }

    /* Metadata Audit Panel styling */
    .audit-header {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--accent-gold);
    }
    .audit-panel {
      margin-top: 15px;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.02);
      padding: 16px;
      overflow-y: auto;
      max-height: 450px;
    }
    .audit-warning-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.825rem;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      color: var(--text-secondary);
    }
    .audit-warning-item:last-child {
      border-bottom: none;
    }
    .audit-warning-item strong {
      color: var(--text-primary);
    }
    .audit-btn-group {
      display: flex;
      gap: 8px;
      margin-top: 6px;
    }
    .audit-btn {
      padding: 2px 8px;
      font-size: 0.725rem;
      border-radius: 4px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,0.04);
      color: var(--text-primary);
      cursor: pointer;
      font-weight: 600;
      transition: all 0.2s;
    }
    .audit-btn:hover {
      background: rgba(255,255,255,0.1);
      border-color: var(--text-secondary);
    }
    .audit-btn.jump {
      border-color: var(--border-cyan);
      color: var(--accent-cyan);
      background: rgba(6, 182, 212, 0.04);
    }
    .audit-btn.jump:hover {
      background: rgba(6, 182, 212, 0.15);
    }

    /* Ambient Background Glow Blobs */
    .bg-glow-blob {
      position: fixed;
      border-radius: 50%;
      filter: blur(120px);
      z-index: 0;
      opacity: 0.08;
      pointer-events: none;
      transition: all 5s ease-in-out;
      animation: drift 20s infinite alternate;
      will-change: transform;
      contain: paint;
    }
    .blob-1 {
      top: -10%; left: -10%;
      width: 45vw; height: 45vw;
      background: var(--accent-cyan);
    }
    .blob-2 {
      bottom: -10%; right: -10%;
      width: 50vw; height: 50vw;
      background: var(--accent-purple);
      animation-delay: -5s;
    }
    .blob-3 {
      top: 40%; left: 30%;
      width: 35vw; height: 35vw;
      background: var(--accent-gold);
      animation-delay: -10s;
    }
    @keyframes drift {
      0% { transform: translate(0, 0) scale(1); }
      100% { transform: translate(60px, 40px) scale(1.08); }
    }

    /* Results layout - Redesigned 3-Column Grid */
    .tagger-dashboard-grid {
      display: grid;
      grid-template-columns: 1.1fr 1.3fr 1fr;
      gap: 24px;
      padding: 24px;
      position: relative;
      z-index: 2;
      min-width: 0;
      width: 100%;
      box-sizing: border-box;
    }
    .tagger-dashboard-grid::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 15% 25%, rgba(6, 182, 212, 0.08) 0%, transparent 45%),
                  radial-gradient(circle at 50% 75%, rgba(168, 85, 247, 0.08) 0%, transparent 50%),
                  radial-gradient(circle at 85% 35%, rgba(197, 160, 89, 0.06) 0%, transparent 45%);
      pointer-events: none;
      z-index: -1;
    }
    .dashboard-col {
      display: flex;
      flex-direction: column;
      gap: 24px;
      min-width: 0;
      width: 100%;
      box-sizing: border-box;
    }
    @media (max-width: 1350px) {
      .tagger-dashboard-grid {
        grid-template-columns: 1.2fr 1fr;
      }
      .col-right {
        grid-column: span 2;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
      }
      .col-right .card {
        margin: 0;
      }
    }
    @media (max-width: 850px) {
      .tagger-dashboard-grid {
        grid-template-columns: 1fr;
        padding: 12px;
      }
      .col-right {
        grid-column: span 1;
        grid-template-columns: 1fr;
      }
    }

    /* Cards - Premium Glassmorphism */
    .card {
      background: rgba(10, 12, 16, 0.7);
      backdrop-filter: blur(20px) saturate(180%);
      border-radius: 16px; padding: 24px;
      transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
      position: relative;
      overflow: hidden;
      min-width: 0;
      width: 100%;
      box-sizing: border-box;
    }
    .card:hover {
      transform: translateY(-2px);
    }
    
    /* Specific Column Card Neon Glows matching the mockup */
    .col-left .card {
      border: 1px solid rgba(6, 182, 212, 0.18);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 0 12px rgba(6, 182, 212, 0.04);
    }
    .col-left .card:hover {
      border-color: rgba(6, 182, 212, 0.4);
      box-shadow: 0 16px 48px rgba(6, 182, 212, 0.15), inset 0 0 16px rgba(6, 182, 212, 0.08);
    }
    
    /* H4 FIX: col-center is what the HTML uses; col-mid kept as alias */
    .col-mid .card, .col-center .card {
      border: 1px solid rgba(168, 85, 247, 0.18);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 0 12px rgba(168, 85, 247, 0.04);
    }
    .col-mid .card:hover, .col-center .card:hover {
      border-color: rgba(168, 85, 247, 0.4);
      box-shadow: 0 16px 48px rgba(168, 85, 247, 0.15), inset 0 0 16px rgba(168, 85, 247, 0.08);
    }
    
    .col-right .card {
      border: 1px solid rgba(59, 130, 246, 0.18);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 0 12px rgba(59, 130, 246, 0.04);
    }
    .col-right .card:hover {
      border-color: rgba(59, 130, 246, 0.4);
      box-shadow: 0 16px 48px rgba(59, 130, 246, 0.15), inset 0 0 16px rgba(59, 130, 246, 0.08);
    }
    .card h3 {
      font-family: var(--font-main); font-size: 0.9rem; font-weight: 700;
      letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--accent-gold); margin-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06); padding-bottom: 8px;
    }

    /* Circular SVG Health Ring Styles */
    .health-ring-bg {
      stroke: rgba(255, 255, 255, 0.05);
    }
    .health-ring-fill {
      stroke: url(#healthRingGradient);
      stroke-linecap: round;
      transform-origin: center;
      transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* Visualizer & Waveform */
    .waveform-container {
      position: relative; height: 120px;
      background: rgba(7, 10, 19, 0.6); border-radius: 12px;
      border: 1px solid var(--border); overflow: hidden; cursor: pointer;
    }
    .waveform-container canvas { width: 100%; height: 100%; display: block; }
    .waveform-playhead {
      position: absolute; top: 0; bottom: 0; left: 0; width: 2px;
      background: var(--accent-cyan); box-shadow: 0 0 8px var(--accent-cyan);
      pointer-events: none;
    }
    .play-btn {
      background: rgba(255,255,255,0.08); border: 1px solid var(--border);
      color: var(--text-primary); border-radius: 50%;
      width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
      cursor: pointer; font-size: 1.1rem; transition: background 0.2s;
    }
    .play-btn:hover { background: rgba(255,255,255,0.15); }
    .player-row { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
    .track-title-label { font-size: 0.95rem; font-weight: 600; }

    /* Badges & Info List */
    .info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
    .info-badge {
      background: rgba(255,255,255,0.03); border: 1px solid var(--border);
      border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 4px;
    }
    .badge-lbl { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; font-weight: 600; }
    .badge-val { font-family: var(--font-main); font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }

    /* Metadata Form */
    .form-group {
      display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px;
      min-width: 0; width: 100%; box-sizing: border-box;
    }
    .form-group label { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }
    .form-group input, .form-group select, .form-group textarea {
      background: rgba(7, 10, 19, 0.5); border: 1px solid var(--border);
      color: var(--text-primary); font-family: var(--font-body);
      font-size: 0.9rem; padding: 10px 14px; border-radius: 8px;
      transition: border-color 0.2s, box-shadow 0.2s;
      min-width: 0; width: 100%; max-width: 100%; box-sizing: border-box;
      text-overflow: ellipsis;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      outline: none; border-color: var(--accent-cyan);
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.25);
    }
    /* Gemini Nano streaming indicator */
    @keyframes nano-pulse {
      0%, 100% { border-color: rgba(6, 182, 212, 0.4); box-shadow: 0 0 6px rgba(6,182,212,0.15); }
      50%        { border-color: var(--accent-cyan);    box-shadow: 0 0 16px rgba(6,182,212,0.45); }
    }
    textarea.nano-streaming {
      animation: nano-pulse 1.1s ease-in-out infinite;
      color: rgba(255,255,255,0.7);
    }
    textarea.nano-streaming::after {
      content: '▍';
      animation: blink 0.8s step-end infinite;
      color: var(--accent-cyan);
    }
    @keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
    .form-row {
      display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
      min-width: 0; width: 100%; box-sizing: border-box;
    }
    @media (max-width: 1100px) {
      .form-row, .form-row[style] {
        grid-template-columns: 1fr !important;
      }
    }

    /* Splits & Dynamic fields */
    .split-row {
      display: grid;
      grid-template-columns: 1.2fr 1.5fr 1fr auto;
      gap: 8px;
      margin-bottom: 12px;
      padding: 10px;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 8px;
      align-items: center;
    }
    .split-row input:first-child {
      grid-column: span 3;
      width: 100%;
    }
    .split-row button.btn-remove-row {
      grid-column: 4;
      grid-row: 1;
      margin: 0;
    }
    .split-row select {
      grid-column: 1;
      grid-row: 2;
      max-width: 100% !important;
      height: 38px;
    }
    .split-row input:nth-child(3) {
      grid-column: 2;
      grid-row: 2;
      max-width: 100% !important;
    }
    .split-row input.percent-input {
      grid-column: 3 / span 2;
      grid-row: 2;
      max-width: 100% !important;
      text-align: center;
    }
    .btn-add-split {
      background: rgba(6, 182, 212, 0.1); border: 1px solid rgba(6, 182, 212, 0.25);
      color: var(--accent-cyan); font-size: 0.8rem; font-weight: 600;
      padding: 6px 12px; border-radius: 6px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
      transition: background 0.2s;
    }
    .btn-add-split:hover { background: rgba(6, 182, 212, 0.2); }
    .btn-remove-row {
      background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.2);
      color: #ef4444; width: 34px; height: 34px; border-radius: 6px;
      display: flex; align-items: center; justify-content: center; cursor: pointer;
    }
    .btn-remove-row:hover { background: rgba(239, 68, 68, 0.2); }

    /* Quick Preset Buttons */
    .preset-container { display: flex; gap: 8px; margin-bottom: 12px; }
    .btn-preset {
      background: rgba(255,255,255,0.03); border: 1px solid var(--border);
      color: var(--text-secondary); font-size: 0.78rem; font-weight: 500;
      padding: 6px 12px; border-radius: 6px; cursor: pointer;
    }
    .btn-preset:hover { background: rgba(255,255,255,0.08); color: var(--text-primary); }

    /* Export Trigger */
    .btn-export {
      background: linear-gradient(135deg, #c5a059, #fbf5b7);
      color: #3b2806; font-family: var(--font-main); font-size: 1.05rem; font-weight: 800;
      padding: 14px 28px; border-radius: 12px; cursor: pointer;
      border: none; text-align: center; width: 100%; display: block;
      margin-top: 10px;
      box-shadow: 0 4px 20px rgba(197, 160, 89, 0.3);
      transition: transform 0.2s, opacity 0.2s;
    }
    .btn-export:hover { transform: translateY(-1px); opacity: 0.95; }

    /* Footer */
    footer {
      text-align: center; padding: 40px;
      border-top: 1px solid var(--border); color: var(--text-muted); font-size: 0.8rem;
    }

    .hidden { display: none !important; }

    /* ── 3D Buttons & Soft Neon Glows Override ── */
    .btn-select, .btn-export, .btn-add-split, .btn-remove-row, .btn-preset {
      transition: transform 0.12s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.12s ease, opacity 0.2s, background 0.2s, border-color 0.2s, color 0.2s !important;
    }
    .btn-select:active, .btn-export:active, .btn-add-split:active, .btn-remove-row:active, .btn-preset:active {
      transform: translateY(4px) !important;
    }

    .btn-select {
      border: 1px solid rgba(255, 255, 255, 0.1) !important;
      box-shadow: 0 4px 0 #0d276b, 0 4px 20px rgba(6, 182, 212, 0.25), 0 0 15px rgba(6, 182, 212, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
    }
    .btn-select:hover {
      transform: translateY(-2px) !important;
      box-shadow: 0 6px 0 #0d276b, 0 8px 25px rgba(6, 182, 212, 0.45), 0 0 25px rgba(6, 182, 212, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
    }
    .btn-select:active {
      box-shadow: 0 0px 0 transparent, 0 2px 10px rgba(6, 182, 212, 0.15), 0 0 8px rgba(6, 182, 212, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
    }

    .btn-export {
      border: 1px solid rgba(255, 255, 255, 0.1) !important;
      box-shadow: 0 4px 0 #8c6b2b, 0 4px 20px rgba(197, 160, 89, 0.25), 0 0 15px rgba(197, 160, 89, 0.2) !important;
    }
    .btn-export:hover {
      transform: translateY(-2px) !important;
      box-shadow: 0 6px 0 #8c6b2b, 0 8px 25px rgba(197, 160, 89, 0.45), 0 0 25px rgba(197, 160, 89, 0.35) !important;
    }
    .btn-export:active {
      box-shadow: 0 0px 0 transparent, 0 2px 10px rgba(197, 160, 89, 0.15), 0 0 8px rgba(197, 160, 89, 0.1) !important;
    }

    .btn-add-split {
      box-shadow: 0 4px 0 rgba(6, 182, 212, 0.15), 0 4px 10px rgba(0, 0, 0, 0.3), 0 0 12px rgba(6, 182, 212, 0.1) !important;
    }
    .btn-add-split:hover {
      transform: translateY(-2px) !important;
      box-shadow: 0 6px 0 rgba(6, 182, 212, 0.25), 0 6px 15px rgba(0, 0, 0, 0.4), 0 0 18px rgba(6, 182, 212, 0.25) !important;
    }
    .btn-add-split:active {
      box-shadow: 0 0px 0 transparent, 0 2px 8px rgba(0, 0, 0, 0.2) !important;
    }

    .btn-remove-row {
      box-shadow: 0 4px 0 rgba(239, 68, 68, 0.15), 0 4px 10px rgba(0, 0, 0, 0.3), 0 0 12px rgba(239, 68, 68, 0.1) !important;
      transition: transform 0.12s, box-shadow 0.12s, background 0.2s !important;
    }
    .btn-remove-row:hover {
      transform: translateY(-2px) !important;
      box-shadow: 0 6px 0 rgba(239, 68, 68, 0.25), 0 6px 15px rgba(0, 0, 0, 0.4), 0 0 18px rgba(239, 68, 68, 0.2) !important;
    }
    .btn-remove-row:active {
      transform: translateY(4px) !important;
      box-shadow: 0 0px 0 transparent !important;
    }

    .btn-preset {
      border: 1px solid rgba(255, 255, 255, 0.12) !important;
      background: rgba(255, 255, 255, 0.03) !important;
      box-shadow: 0 4px 0 rgba(255, 255, 255, 0.08), 0 4px 10px rgba(0, 0, 0, 0.3), 0 0 10px rgba(168, 85, 247, 0.08) !important;
    }
    .btn-preset:hover {
      transform: translateY(-2px) !important;
      background: rgba(255, 255, 255, 0.08) !important;
      border-color: rgba(255, 255, 255, 0.2) !important;
      box-shadow: 0 6px 0 rgba(255, 255, 255, 0.12), 0 6px 15px rgba(0, 0, 0, 0.4), 0 0 15px rgba(168, 85, 247, 0.18) !important;
    }
    .btn-preset:active {
      box-shadow: 0 0px 0 transparent, 0 2px 8px rgba(0, 0, 0, 0.2) !important;
    }

    /* Soft Neon Glow for Sync Page Boxes/Cards/Widgets */
    .main-card, .card, #healthScoreWidget, #comparisonBox {
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.45), 
                  0 0 30px rgba(99, 102, 241, 0.12), 
                  0 0 15px rgba(6, 182, 212, 0.1), 
                  inset 0 1px 1px rgba(255, 255, 255, 0.05) !important;
      transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease !important;
    }
    .main-card:hover, .card:hover {
      box-shadow: 0 20px 45px rgba(0, 0, 0, 0.55), 
                  0 0 40px rgba(99, 102, 241, 0.22), 
                  0 0 20px rgba(6, 182, 212, 0.18), 
                  inset 0 1px 1px rgba(255, 255, 255, 0.08) !important;
    }

    #healthScoreWidget {
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3), 
                  0 0 20px rgba(16, 185, 129, 0.15) !important;
    }
    #healthScoreWidget:hover {
      box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4), 
                  0 0 30px rgba(16, 185, 129, 0.25) !important;
    }

    #comparisonBox {
      box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3), 
                  0 0 15px rgba(6, 182, 212, 0.1) !important;
    }
    #comparisonBox:hover {
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4), 
                  0 0 25px rgba(6, 182, 212, 0.2) !important;
    }

    /* --- MusicBrainz Modal Styles --- */
    .mb-modal {
      position: fixed;
      inset: 0;
      z-index: 1000;
      background: rgba(7, 10, 19, 0.8);
      backdrop-filter: blur(8px);
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 24px;
      transition: opacity 0.3s ease;
    }
    .mb-modal-content {
      background: var(--bg-surface);
      border: 1px solid var(--border-cyan);
      border-radius: 20px;
      width: 100%;
      max-width: 600px;
      box-shadow: 0 20px 50px rgba(6, 182, 212, 0.2),
                  0 0 30px rgba(168, 85, 247, 0.1);
      display: flex;
      flex-direction: column;
      overflow: hidden;
      animation: modalSlide 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    @keyframes modalSlide {
      from { transform: translateY(20px); opacity: 0; }
      to { transform: translateY(0); opacity: 1; }
    }
    .mb-modal-header {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .mb-modal-header h2 {
      font-family: var(--font-main);
      font-size: 1.3rem;
      font-weight: 700;
      background: var(--gradient-main);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .mb-close-btn {
      background: none;
      border: none;
      color: var(--text-secondary);
      font-size: 1.8rem;
      cursor: pointer;
      line-height: 1;
      transition: color 0.2s;
    }
    .mb-close-btn:hover {
      color: var(--text-primary);
    }
    .mb-modal-body {
      padding: 24px;
    }
    .mb-result-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      margin-bottom: 10px;
      transition: background 0.2s, border-color 0.2s;
    }
    .mb-result-card:hover {
      background: rgba(255, 255, 255, 0.04);
      border-color: rgba(6, 182, 212, 0.3);
    }
    .mb-result-info {
      display: flex;
      flex-direction: column;
      gap: 4px;
      flex: 1;
    }
    .mb-result-title {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-primary);
    }
    .mb-result-detail {
      font-size: 0.8rem;
      color: var(--text-secondary);
      line-height: 1.3;
    }
    .mb-apply-btn {
      background: linear-gradient(135deg, #06b6d4, #818cf8);
      color: #fff;
      font-family: var(--font-main);
      font-size: 0.8rem;
      font-weight: 700;
      padding: 8px 16px;
      border-radius: 6px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 0 #0d276b, 0 4px 10px rgba(6, 182, 212, 0.2) !important;
      transition: transform 0.12s, box-shadow 0.12s !important;
    }
    .mb-apply-btn:hover {
      transform: translateY(-2px) !important;
      box-shadow: 0 6px 0 #0d276b, 0 6px 12px rgba(6, 182, 212, 0.3) !important;
    }
    .mb-apply-btn:active {
      transform: translateY(4px) !important;
      box-shadow: 0 0px 0 transparent !important;
    }
    
    /* Auth Wall Styling */
    .auth-wall-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(10, 10, 12, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 99999;
      opacity: 1;
      transition: opacity 0.4s ease;
    }
    .auth-wall-card {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 40px;
      width: 100%;
      max-width: 420px;
      text-align: center;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
    .auth-logo {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 2px;
      margin-bottom: 24px;
      font-family: 'Outfit', sans-serif;
    }
    .auth-wall-card h2 {
      font-family: 'Outfit', sans-serif;
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .auth-wall-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 24px;
    }
    .auth-wall-card input[type="password"] {
      width: 100%;
      background: rgba(0, 0, 0, 0.25);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 12px 16px;
      color: var(--text-main);
      font-size: 0.95rem;
      margin-bottom: 16px;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      text-align: center;
    }
    .auth-wall-card input[type="password"]:focus {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.15);
    }
    .auth-wall-card button {
      width: 100%;
      background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
      border: none;
      border-radius: 8px;
      padding: 12px;
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: transform 0.2s ease, opacity 0.2s ease;
    }
    .auth-wall-card button:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }
    .auth-wall-card button:active {
      transform: translateY(1px);
    }
    .auth-error {
      font-size: 0.8rem;
      color: #ef4444;
      margin-top: 12px;
      font-weight: 500;
    }
    .hidden-app {
      display: none !important;
    }
    .logout-btn {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 0.75rem;
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: var(--font-body);
      font-weight: 500;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }
    .logout-btn:hover {
      background: rgba(239, 68, 68, 0.1);
      border-color: rgba(239, 68, 68, 0.3);
      color: #ef4444;
    }
    .profile-nav-btn {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 0.75rem;
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: var(--font-body);
      font-weight: 500;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }
    .profile-nav-btn:hover {
      background: rgba(6, 182, 212, 0.1);
      border-color: rgba(6, 182, 212, 0.35);
      color: var(--accent-cyan);
    }
    .onboarding-nav-btn {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border);
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 0.75rem;
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: var(--font-body);
      font-weight: 500;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
    }
    .onboarding-nav-btn:hover {
      background: rgba(168, 85, 247, 0.1);
      border-color: rgba(168, 85, 247, 0.35);
      color: var(--accent-purple);
    }

    /* Premium Floating Glass Tabs Wrapper */
    .tabs-navigation-wrapper {
      display: flex;
      justify-content: center;
      margin-bottom: 28px;
      position: relative;
      z-index: 10;
    }
    .glass-tabs-container {
      display: flex;
      background: rgba(15, 23, 42, 0.55);
      backdrop-filter: blur(20px) saturate(180%);
      -webkit-backdrop-filter: blur(20px) saturate(180%);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 30px;
      padding: 6px;
      gap: 6px;
      box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3), 
                  0 0 1px rgba(255, 255, 255, 0.1) inset;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-tabs-container:hover {
      border-color: rgba(255, 255, 255, 0.12);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 
                  0 0 1px rgba(255, 255, 255, 0.2) inset;
    }
    .glass-tabs-container .tab-btn {
      flex: none;
      padding: 10px 22px;
      background: transparent;
      border: 1px solid transparent;
      color: var(--text-secondary);
      font-family: var(--font-main);
      font-size: 0.9rem;
      font-weight: 600;
      cursor: pointer;
      border-radius: 24px;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
    }
    .glass-tabs-container .tab-btn .tab-icon {
      font-size: 1.1rem;
      transition: transform 0.25s ease;
    }
    .glass-tabs-container .tab-btn:hover {
      color: var(--text-primary);
      background: rgba(255, 255, 255, 0.04);
    }
    .glass-tabs-container .tab-btn:hover .tab-icon {
      transform: scale(1.15) rotate(5deg);
    }
    .glass-tabs-container .tab-btn.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(129, 140, 248, 0.15) 100%);
      border: 1px solid rgba(6, 182, 212, 0.35);
      box-shadow: 0 4px 16px rgba(6, 182, 212, 0.12),
                  0 0 10px rgba(6, 182, 212, 0.1) inset;
      text-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
    }
    .glass-tabs-container .tab-btn.active .tab-icon {
      transform: scale(1.1);
      filter: drop-shadow(0 0 6px rgba(6, 182, 212, 0.5));
    }
    @media (max-width: 768px) {
      .glass-tabs-container {
        width: 100%;
        flex-direction: column;
        border-radius: 20px;
        padding: 8px;
      }
      .glass-tabs-container .tab-btn {
        width: 100%;
        padding: 12px;
        border-radius: 14px;
        justify-content: flex-start;
      }
    }

    /* Workspace visibility */
    .hidden-workspace {
      display: none !important;
    }

    /* Stem Separator Styles */
    .mixer-channels-grid {
      margin-top: 24px;
      padding: 10px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    @media (max-width: 900px) {
      .mixer-channels-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
    }
    @media (max-width: 500px) {
      .mixer-channels-grid {
        grid-template-columns: 1fr;
        gap: 12px;
      }
    }
    .mixer-channel {
      background: rgba(7, 10, 19, 0.4);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
      transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    }
    .mixer-channel:hover {
      transform: translateY(-2px);
      border-color: rgba(6, 182, 212, 0.3);
      box-shadow: 0 10px 25px rgba(6, 182, 212, 0.05);
    }
    .mixer-channel[data-stem="vocals"] {
      border-left: 3px solid var(--accent-cyan);
    }
    .mixer-channel[data-stem="drums"] {
      border-left: 3px solid var(--accent-purple);
    }
    .mixer-channel[data-stem="bass"] {
      border-left: 3px solid var(--accent-gold);
    }
    .mixer-channel[data-stem="melody"] {
      border-left: 3px solid #10b981;
    }
    .channel-header {
      width: 100%;
      text-align: center;
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border);
      padding-bottom: 12px;
      position: relative;
    }
    .channel-number {
      position: absolute;
      top: -8px;
      left: 0;
      font-size: 0.72rem;
      font-family: monospace;
      color: var(--text-muted);
    }
    .channel-header h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      letter-spacing: 1px;
      margin-bottom: 4px;
    }
    .channel-sub {
      font-size: 0.7rem;
      color: var(--text-muted);
      text-transform: uppercase;
    }
    .channel-meter-container {
      width: 16px;
      height: 180px;
      background: rgba(0, 0, 0, 0.3);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 4px;
      margin-bottom: 20px;
      position: relative;
      overflow: hidden;
    }
    .channel-meter {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 0%;
      background: linear-gradient(to top, #10b981 60%, #f59e0b 85%, #ef4444 100%);
      transition: height 0.08s ease;
      border-radius: 3px;
    }
    .channel-controls {
      width: 100%;
      display: flex;
      flex-direction: column;
      gap: 12px;
      align-items: center;
    }
    .btn-group-row {
      display: flex;
      width: 100%;
      gap: 8px;
    }
    .ctrl-btn {
      flex: 1;
      padding: 6px;
      font-size: 0.72rem;
      font-weight: 700;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border);
      border-radius: 6px;
      color: var(--text-secondary);
      cursor: pointer;
      transition: all 0.2s;
    }
    .ctrl-btn:hover {
      background: rgba(255,255,255,0.08);
      color: #fff;
    }
    .ctrl-btn.mute-btn.active {
      background: rgba(239, 68, 68, 0.25);
      border-color: #ef4444;
      color: #ef4444;
      text-shadow: 0 0 5px rgba(239, 68, 68, 0.3);
    }
    .ctrl-btn.solo-btn.active {
      background: rgba(245, 158, 11, 0.2);
      border-color: #f59e0b;
      color: #f59e0b;
      text-shadow: 0 0 5px rgba(245, 158, 11, 0.3);
    }
    .fader {
      -webkit-appearance: none;
      appearance: none;
      width: 100%;
      height: 6px;
      background: rgba(0,0,0,0.4);
      border-radius: 3px;
      outline: none;
      margin: 12px 0 4px 0;
    }
    .fader::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 14px;
      height: 24px;
      background: var(--text-primary);
      border: 1px solid var(--border-focus);
      border-radius: 3px;
      cursor: pointer;
      box-shadow: 0 2px 6px rgba(0,0,0,0.5);
    }
    .fader-value {
      font-size: 0.72rem;
      font-family: monospace;
      color: var(--text-muted);
    }
    .spinner-mini {
      width: 14px;
      height: 14px;
      border: 2px solid rgba(6, 182, 212, 0.2);
      border-top-color: var(--accent-cyan);
      border-radius: 50%;
      animation: spin 1s linear infinite;
    }

    /* Inspector Layout */
    .inspector-row {
      display: flex;
      gap: 24px;
      margin: 32px;
      flex-wrap: wrap;
    }
    .inspector-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    }
    .player-card {
      flex: 3;
      min-width: 320px;
    }
    .loudness-card {
      flex: 2;
      min-width: 280px;
    }
    .metadata-card {
      margin: 0 32px 32px 32px;
    }

    /* Audition Waveform */
    .inspect-waveform-container {
      position: relative;
      width: 100%;
      height: 120px;
      background: rgba(0, 0, 0, 0.25);
      border: 1px solid var(--border);
      border-radius: 10px;
      overflow: hidden;
      margin-bottom: 16px;
      cursor: pointer;
    }
    #inspectWaveformCanvas {
      width: 100%;
      height: 100%;
      display: block;
    }
    .waveform-playhead {
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
      width: 2px;
      background: var(--accent-gold);
      box-shadow: 0 0 8px var(--accent-gold);
      pointer-events: none;
      transition: left 0.05s linear;
    }

    /* Controls */
    .player-controls-row {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .volume-control {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }
    .volume-control input[type="range"] {
      width: 80px;
      height: 4px;
      accent-color: var(--accent-cyan);
      cursor: pointer;
    }

    /* Loudness Metrics Grid */
    .loudness-metrics-grid {
      display: flex;
      flex-direction: column;
      gap: 16px;
      height: 100%;
      justify-content: space-around;
    }
    .metric-box {
      background: rgba(255, 255, 255, 0.01);
      border: 1px solid rgba(255, 255, 255, 0.03);
      border-radius: 10px;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 4px;
    }
    .metric-name {
      font-size: 0.68rem;
      font-weight: 700;
      color: var(--text-secondary);
      letter-spacing: 0.08em;
    }
    .metric-val {
      font-family: var(--font-main);
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-primary);
    }
    .metric-status {
      font-size: 0.72rem;
      font-weight: 500;
    }

    /* Metadata Verification Grid Table */
    .metadata-table-container {
      overflow-x: auto;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: rgba(0, 0, 0, 0.2);
    }
    .metadata-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.85rem;
      text-align: left;
    }
    .metadata-table th {
      background: rgba(255, 255, 255, 0.02);
      padding: 14px 16px;
      color: var(--text-primary);
      font-weight: 600;
      border-bottom: 1px solid var(--border);
    }
    .metadata-table td {
      padding: 12px 16px;
      color: var(--text-secondary);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
      vertical-align: middle;
    }
    .metadata-table tr:hover td {
      background: rgba(255, 255, 255, 0.01);
    }
    .metadata-table tr:last-child td {
      border-bottom: none;
    }

    /* Badge status styling */
    .badge-status {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 0.72rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.02em;
    }
    .badge-status.ready {
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #10b981;
    }
    .badge-status.warning {
      background: rgba(245, 158, 11, 0.1);
      border: 1px solid rgba(245, 158, 11, 0.25);
      color: #f59e0b;
    }
    .badge-status.hot {
      background: rgba(239, 68, 68, 0.1);
      border: 1px solid rgba(239, 68, 68, 0.25);
      color: #ef4444;
    }
    .badge-status.info {
      background: rgba(59, 130, 246, 0.1);
      border: 1px solid rgba(59, 130, 246, 0.25);
      color: #3b82f6;
    }
    .badge-status.grey {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-secondary);
    }

    /* Technical Guides & Specs */
    .tech-guide-container {
      margin-top: 32px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      text-align: left;
      width: 100%;
    }
    .tech-guide-title {
      font-family: var(--font-main);
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin: 0 0 16px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .tech-guide-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    @media (max-width: 850px) {
      .tech-guide-grid {
        grid-template-columns: 1fr;
      }
    }
    .tech-guide-card {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.04);
      border-radius: 10px;
      padding: 16px;
      transition: all 0.2s ease;
    }
    .tech-guide-card:hover {
      background: rgba(255, 255, 255, 0.03);
      border-color: rgba(6, 182, 212, 0.15);
    }
    .tech-guide-card-icon {
      font-size: 1.25rem;
      margin-bottom: 8px;
      color: var(--accent-cyan);
    }
    .tech-guide-card h4 {
      font-size: 0.88rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
      letter-spacing: 0.5px;
    }
    .tech-guide-card p {
      font-size: 0.78rem;
      color: var(--text-secondary);
      line-height: 1.45;
    }

    @media (max-width: 768px) {
      header {
        padding: 0 16px !important;
      }
      .header-logo span {
        display: none !important;
      }
      .header-nav a:not(:first-child) {
        display: none !important;
      }
    }

    /* Premium Interactive Onboarding Tour */
    .onboarding-overlay {
      position: fixed;
      top: 0; left: 0; width: 100vw; height: 100vh;
      background: rgba(4, 6, 12, 0.45);
      backdrop-filter: blur(3px);
      -webkit-backdrop-filter: blur(3px);
      z-index: 9998;
      opacity: 0; pointer-events: none;
      transition: opacity 0.3s ease;
    }
    .onboarding-overlay.active {
      opacity: 1; pointer-events: auto;
    }
    
    .onboarding-highlight {
      position: relative !important;
      z-index: 9999 !important;
      box-shadow: 0 0 0 9999px rgba(4, 6, 12, 0.8), 0 0 25px rgba(6, 182, 212, 0.5) !important;
      pointer-events: none !important;
      border-color: var(--accent-cyan) !important;
    }
    
    .onboarding-card {
      position: fixed;
      z-index: 10000;
      width: 380px;
      max-width: calc(100vw - 32px);
      background: #0f172a;
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 24px 48px rgba(0,0,0,0.5), 
                  0 0 1px rgba(255,255,255,0.1) inset,
                  0 0 20px rgba(6, 182, 212, 0.05);
      opacity: 0; transform: translate(-50%, -50%) scale(0.95);
      transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
      pointer-events: none;
    }
    .onboarding-card.visible {
      opacity: 1; pointer-events: auto;
    }
    .onboarding-card.center {
      top: 50% !important; left: 50% !important;
      transform: translate(-50%, -50%) scale(1) !important;
    }
    .onboarding-card h3 {
      font-family: var(--font-heading);
      font-size: 1.15rem; font-weight: 700;
      color: #fff; margin-bottom: 8px;
      display: flex; align-items: center; gap: 8px;
    }
    .onboarding-card p {
      font-size: 0.85rem; color: var(--text-secondary);
      line-height: 1.5; margin-bottom: 20px;
    }
    .onboarding-footer {
      display: flex; justify-content: space-between; align-items: center;
    }
    .onboarding-steps-indicator {
      font-size: 0.75rem; color: var(--text-muted); font-weight: 600;
    }
    .onboarding-actions {
      display: flex; gap: 8px;
    }
    .onboarding-btn-skip {
      background: transparent; border: none;
      color: var(--text-muted); font-size: 0.8rem;
      cursor: pointer; padding: 6px 12px; font-weight: 600;
      transition: color 0.2s;
    }
    .onboarding-btn-skip:hover { color: #fff; }
    .onboarding-btn-next {
      background: linear-gradient(135deg, #06b6d4, #818cf8);
      border: none; border-radius: 8px;
      color: #fff; font-size: 0.8rem; font-weight: 700;
      padding: 8px 16px; cursor: pointer;
      box-shadow: 0 4px 12px rgba(6, 182, 212, 0.2);
      transition: all 0.2s;
    }
    .onboarding-btn-next:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(6, 182, 212, 0.3);
    }
    
    .onboarding-nav-btn {
      background: rgba(255,255,255,0.03);
      color: var(--text-secondary);
      border: 1px solid var(--border);
      font-family: var(--font-main);
      font-size: 0.78rem; font-weight: 600;
      padding: 6px 14px; border-radius: 6px;
      cursor: pointer; transition: all 0.2s;
      display: flex; align-items: center; gap: 6px;
    }
    .onboarding-nav-btn:hover {
      background: rgba(255,255,255,0.07);
      color: #fff;
      border-color: var(--text-secondary);
    }

/* Tauri Desktop App Overrides & Customizations */
.hud-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: rgba(3, 7, 18, 0.7);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      z-index: 9995;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hud-overlay.hud-visible {
      opacity: 1;
      pointer-events: auto;
    }
    .hud-window {
      position: relative;
      width: 90%;
      max-width: 460px;
      background: rgba(17, 24, 39, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 20px;
      padding: 30px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 
                  0 0 40px rgba(6, 182, 212, 0.05);
      overflow: hidden;
      transform: scale(0.95);
      transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .hud-overlay.hud-visible .hud-window {
      transform: scale(1);
    }
    .hud-glowing-backlight {
      position: absolute;
      top: -30%;
      left: 10%;
      width: 80%;
      height: 60%;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, rgba(217, 70, 239, 0.03) 50%, transparent 100%);
      pointer-events: none;
      z-index: 0;
    }
    .hud-header {
      position: relative;
      z-index: 1;
      margin-bottom: 24px;
      text-align: center;
    }
    .hud-badge {
      display: inline-block;
      font-size: 0.65rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: var(--accent-cyan);
      background: rgba(6, 182, 212, 0.1);
      border: 1px solid rgba(6, 182, 212, 0.2);
      border-radius: 100px;
      padding: 4px 10px;
      margin-bottom: 12px;
    }
    .hud-header h2 {
      font-size: 1.4rem;
      font-weight: 700;
      color: #fff;
      margin: 0 0 6px 0;
      letter-spacing: -0.5px;
    }
    .hud-header p {
      font-size: 0.85rem;
      color: var(--text-secondary);
      margin: 0;
    }
    .hud-stepper {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-bottom: 28px;
    }
    .hud-step {
      display: flex;
      align-items: center;
      gap: 16px;
      opacity: 0.4;
      transition: opacity 0.3s ease;
    }
    .hud-step.active {
      opacity: 1;
    }
    .hud-step.completed {
      opacity: 0.9;
    }
    .hud-indicator {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      flex-shrink: 0;
      transition: all 0.3s ease;
    }
    .hud-indicator.pending {
      background: rgba(255, 255, 255, 0.05);
      border: 2px solid rgba(255, 255, 255, 0.1);
    }
    .hud-indicator.working {
      background: rgba(6, 182, 212, 0.1);
      border: 2px solid var(--accent-cyan);
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.3);
    }
    .hud-indicator.working::after {
      content: '';
      position: absolute;
      width: 14px;
      height: 14px;
      border: 2px solid transparent;
      border-top-color: var(--accent-cyan);
      border-radius: 50%;
      animation: hud-spin 0.8s linear infinite;
    }
    .hud-indicator.completed {
      background: rgba(16, 185, 129, 0.1);
      border: 2px solid #10b981;
      box-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
    }
    .hud-indicator.completed::after {
      content: '✓';
      font-size: 0.8rem;
      font-weight: 700;
      color: #10b981;
      animation: hud-check-pop 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    }
    .hud-info {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }
    .hud-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: #fff;
    }
    .hud-desc {
      font-size: 0.75rem;
      color: var(--text-muted);
    }
    .hud-progress-container {
      position: relative;
      z-index: 1;
      width: 100%;
      height: 5px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 10px;
      overflow: hidden;
    }
    .hud-progress-bar {
      width: 0%;
      height: 100%;
      background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--accent-purple) 50%, var(--accent-gold) 100%);
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
      border-radius: 10px;
      transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    @keyframes hud-spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
    @keyframes hud-check-pop {
      0% { transform: scale(0); opacity: 0; }
      100% { transform: scale(1); opacity: 1; }
    }


/* Appended Extracted Styles */
.paywall-overlay {
      position: fixed;
      inset: 0;
      background: rgba(3, 7, 18, 0.75);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      z-index: 11000;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .paywall-overlay.paywall-visible {
      opacity: 1;
      pointer-events: auto;
    }
    .paywall-window {
      position: relative;
      width: 92%;
      max-width: 820px;
      background: rgba(12, 16, 30, 0.9);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 24px;
      padding: 36px 32px 28px;
      box-shadow: 0 32px 64px -16px rgba(0,0,0,0.7), 0 0 60px rgba(6, 182, 212, 0.06);
      overflow: hidden;
      transform: translateY(12px) scale(0.97);
      transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .paywall-overlay.paywall-visible .paywall-window {
      transform: translateY(0) scale(1);
    }
    .paywall-glow {
      position: absolute;
      top: -40%;
      left: 15%;
      width: 70%;
      height: 60%;
      background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, rgba(168,85,247,0.05) 50%, transparent 100%);
      pointer-events: none;
    }
    .paywall-close {
      position: absolute;
      top: 16px;
      right: 20px;
      background: rgba(255,255,255,0.06);
      border: 1px solid rgba(255,255,255,0.1);
      color: var(--text-muted);
      border-radius: 50%;
      width: 32px;
      height: 32px;
      font-size: 0.85rem;
      cursor: pointer;
      transition: all 0.2s ease;
      z-index: 2;
    }
    .paywall-close:hover {
      background: rgba(255,255,255,0.12);
      color: #fff;
    }
    .paywall-header {
      position: relative;
      z-index: 1;
      text-align: center;
      margin-bottom: 28px;
    }
    .paywall-lock-icon {
      font-size: 2rem;
      margin-bottom: 10px;
      filter: drop-shadow(0 0 12px rgba(6,182,212,0.5));
    }
    .paywall-header h2 {
      font-size: 1.6rem;
      font-weight: 700;
      color: #fff;
      margin: 0 0 8px;
      letter-spacing: -0.5px;
    }
    .paywall-header p {
      font-size: 0.95rem;
      color: var(--text-secondary);
      margin: 0 0 14px;
    }
    .paywall-stat {
      display: inline-block;
      font-size: 0.78rem;
      color: var(--text-secondary);
      background: rgba(245, 158, 11, 0.08);
      border: 1px solid rgba(245, 158, 11, 0.2);
      border-radius: 100px;
      padding: 5px 14px;
    }
    .paywall-stat strong {
      color: #f59e0b;
    }
    .paywall-cards {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr 1.1fr 1fr;
      gap: 14px;
      margin-bottom: 22px;
    }
    @media (max-width: 640px) {
      .paywall-cards { grid-template-columns: 1fr; }
      .paywall-window { padding: 28px 20px 22px; }
    }
    .paywall-card {
      position: relative;
      border-radius: 16px;
      padding: 22px 18px 18px;
      border: 1px solid rgba(255,255,255,0.07);
      background: rgba(255,255,255,0.03);
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .paywall-card-creator {
      border-color: rgba(6,182,212,0.4);
      background: rgba(6,182,212,0.04);
      box-shadow: 0 0 24px rgba(6,182,212,0.08);
    }
    .paywall-card-publisher {
      border-color: rgba(168,85,247,0.3);
      background: rgba(168,85,247,0.04);
    }
    .paywall-card-badge {
      font-size: 0.6rem;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--text-muted);
      margin-bottom: 4px;
    }
    .paywall-badge-hot {
      color: var(--accent-cyan);
    }
    .paywall-badge-pro {
      color: var(--accent-purple);
    }
    .paywall-tier-name {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
    }
    .paywall-price {
      font-size: 2rem;
      font-weight: 800;
      color: #fff;
      line-height: 1;
    }
    .paywall-price span {
      font-size: 0.9rem;
      font-weight: 400;
      color: var(--text-muted);
    }
    .paywall-annual {
      font-size: 0.72rem;
      color: var(--text-muted);
      margin-bottom: 4px;
    }
    .paywall-features {
      list-style: none;
      padding: 0;
      margin: 6px 0 12px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      flex: 1;
    }
    .paywall-features li {
      font-size: 0.78rem;
    }
    .paywall-feat-ok { color: var(--text-secondary); }
    .paywall-feat-locked { color: rgba(255,255,255,0.25); }
    .paywall-cta {
      width: 100%;
      padding: 11px 16px;
      border-radius: 10px;
      font-size: 0.88rem;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.2s ease;
      margin-top: auto;
    }
    .paywall-cta-primary {
      background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
      border: none;
      color: #fff;
      box-shadow: 0 4px 16px rgba(6,182,212,0.3);
    }
    .paywall-cta-primary:hover {
      box-shadow: 0 6px 24px rgba(6,182,212,0.5);
      transform: translateY(-1px);
    }
    .paywall-cta-secondary {
      background: transparent;
      border: 1px solid rgba(168,85,247,0.5);
      color: var(--accent-purple);
    }
    .paywall-cta-secondary:hover {
      background: rgba(168,85,247,0.08);
    }
    .paywall-footer {
      position: relative;
      z-index: 1;
      text-align: center;
      border-top: 1px solid rgba(255,255,255,0.05);
      padding-top: 18px;
    }
    .paywall-credits-link {
      font-size: 0.82rem;
      color: var(--accent-gold);
      text-decoration: none;
      display: block;
      margin-bottom: 8px;
      transition: color 0.2s ease;
    }
    .paywall-credits-link:hover { color: #fff; }
    .paywall-guarantee {
      font-size: 0.72rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* ── Freemium Pro Gate Overlay ─────────────────────────────── */
    .pro-gated {
      position: relative;
      overflow: hidden;
      border-radius: inherit;
    }
    .pro-gated > *:not(.pro-gate-chip) {
      filter: blur(4px);
      opacity: 0.45;
      pointer-events: none;
      user-select: none;
      transition: filter 0.3s ease, opacity 0.3s ease;
    }
    .pro-gated::before {
      content: '';
      position: absolute;
      inset: 0;
      background: rgba(7, 10, 19, 0.55);
      z-index: 5;
      border-radius: inherit;
      pointer-events: none;
    }
    .pro-gate-chip {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      z-index: 10;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      text-align: center;
      padding: 14px 20px;
      background: rgba(10, 14, 28, 0.92);
      border: 1px solid rgba(168, 85, 247, 0.4);
      border-radius: 14px;
      backdrop-filter: blur(12px);
      box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(168,85,247,0.15);
      cursor: pointer;
      pointer-events: all;
      min-width: 200px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .pro-gate-chip:hover {
      transform: translate(-50%, -50%) scale(1.04);
      box-shadow: 0 12px 40px rgba(0,0,0,0.6), 0 0 0 1px rgba(168,85,247,0.35), 0 0 24px rgba(168,85,247,0.15);
    }
    .pro-gate-chip .pgc-icon {
      font-size: 1.4rem;
      line-height: 1;
    }
    .pro-gate-chip .pgc-label {
      font-family: 'Outfit', sans-serif;
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      color: #c084fc;
      text-transform: uppercase;
    }
    .pro-gate-chip .pgc-sub {
      font-size: 0.68rem;
      color: rgba(255,255,255,0.45);
      font-weight: 400;
      line-height: 1.3;
    }
    .pro-gate-chip .pgc-cta {
      font-size: 0.72rem;
      font-weight: 700;
      color: #fff;
      background: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
      padding: 5px 14px;
      border-radius: 100px;
      margin-top: 2px;
      letter-spacing: 0.03em;
    }

    /* ── Pro lock badge (inline chip on buttons) ─────────────── */
    .pro-lock-badge {
      display: inline-flex;
      align-items: center;
      gap: 3px;
      font-size: 0.6rem;
      font-weight: 700;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      padding: 2px 7px;
      border-radius: 100px;
      background: rgba(168, 85, 247, 0.15);
      border: 1px solid rgba(168, 85, 247, 0.35);
      color: #c084fc;
      vertical-align: middle;
      margin-left: 6px;
      pointer-events: none;
      white-space: nowrap;
    }
    .pro-lock-badge--dark {
      background: rgba(0, 0, 0, 0.25);
      border-color: rgba(0, 0, 0, 0.4);
      color: rgba(0, 0, 0, 0.7);
    }

    .profile-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.75);
      backdrop-filter: blur(8px);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1005;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .profile-overlay.profile-visible {
      opacity: 1;
      pointer-events: auto;
    }
    .profile-window {
      position: relative;
      width: 92%;
      max-width: 580px;
      background: rgba(18, 18, 18, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
      transform: translateY(20px) scale(0.96);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      backdrop-filter: blur(20px);
      color: #fff;
    }
    .profile-overlay.profile-visible .profile-window {
      transform: translateY(0) scale(1);
    }
    .profile-window input, .profile-window select, .profile-window textarea {
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .profile-window input:focus, .profile-window select:focus, .profile-window textarea:focus {
      border-color: var(--accent-cyan) !important;
      box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.25) !important;
      outline: none;
    }
    
    /* Tauri Desktop App Overrides */
    .tauri-nav-arrows {
      display: none;
      align-items: center;
      gap: 8px;
      margin-left: 16px;
    }
    .tauri-arrow-btn {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-secondary);
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      padding: 0;
      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .tauri-arrow-btn:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.2);
    }
    .tauri-arrow-btn:active {
      transform: scale(0.92);
    }
/* ============================================================
   TAURI DESKTOP APP OVERRIDES — UNLOCKED STUDIO WORKSTATION MODE
   Hides all website marketing links, SaaS paywalls, pricing bars,
   ad copy, and website header/footer links when running in desktop mode.
   ============================================================ */
body.tauri-app .tauri-nav-arrows {
  display: flex !important;
}

body.tauri-app .header-nav a[href="/"],
body.tauri-app .header-nav a[href*="pricing"],
body.tauri-app .header-nav a[href*="services"],
body.tauri-app .header-nav a[href*="academies"],
body.tauri-app .header-nav a[href*="login"],
body.tauri-app .header-nav a[href*="account"],
body.tauri-app .nav-menu-wrapper,
body.tauri-app .nav-account-btn,
body.tauri-app #tierSelectorBar,
body.tauri-app #floatingReadinessBar,
body.tauri-app .paywall-modal,
body.tauri-app #paywallModal,
body.tauri-app #authWall,
body.tauri-app .auth-wall,
body.tauri-app .saas-upgrade-banner,
body.tauri-app .pro-upgrade-pill,
body.tauri-app .pricing-section,
body.tauri-app .credit-badge,
body.tauri-app .onboarding-nav-btn,
body.tauri-app .paywall-credits-link,
body.tauri-app footer {
  display: none !important;
}

    /* C5 FIX: Respect user's reduced-motion OS preference — disable all animations */
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

    /* Mobile responsive enhancements (H6 FIX) */
    @media (max-width: 600px) {
      .upload-zone {
        padding: 40px 20px !important;
        margin: 16px !important;
      }
      .form-row {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
      }
      .split-row {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
        padding: 12px !important;
      }
      .split-row > * {
        width: 100% !important;
      }
      .inspector-row {
        margin: 16px !important;
      }
      .inspector-row > * {
        min-width: 100% !important;
      }
      .metadata-card {
        margin: 0 16px 16px 16px !important;
      }
    }

    /* Analysis Pipeline Steps Visuals */
    .analysis-pipeline-steps {
      margin-top: 24px;
    }
    .pipeline-step {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.01);
      border: 1px solid rgba(255, 255, 255, 0.04);
      transition: all 0.3s ease;
      margin-bottom: 10px;
    }
    .pipeline-step.pending {
      opacity: 0.5;
    }
    .pipeline-step.active {
      opacity: 1;
      background: rgba(6, 182, 212, 0.03);
      border-color: rgba(6, 182, 212, 0.25);
      box-shadow: 0 0 15px rgba(6, 182, 212, 0.05);
    }
    .pipeline-step.completed {
      opacity: 0.85;
      background: rgba(16, 185, 129, 0.02);
      border-color: rgba(16, 185, 129, 0.15);
    }
    .pipeline-step .step-label {
      font-size: 0.85rem;
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-secondary);
      transition: color 0.3s;
    }
    .pipeline-step.active .step-label {
      color: #fff;
      font-weight: 600;
    }
    .pipeline-step.completed .step-label {
      text-decoration: line-through;
      color: var(--text-muted);
    }
    .pipeline-step .step-badge {
      font-size: 0.72rem;
      font-weight: 600;
      text-transform: uppercase;
      padding: 3px 8px;
      border-radius: 6px;
      letter-spacing: 0.5px;
      transition: all 0.3s;
    }
    .pipeline-step.pending .step-badge {
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.04);
    }
    .pipeline-step.active .step-badge {
      color: var(--accent-cyan);
      background: rgba(6, 182, 212, 0.08);
      border: 1px solid rgba(6, 182, 212, 0.2);
      animation: pulseGlow 1.5s infinite alternate;
    }
    .pipeline-step.completed .step-badge {
      color: var(--color-success);
      background: rgba(16, 185, 129, 0.08);
      border: 1px solid rgba(16, 185, 129, 0.2);
    }

    /* Persistent Status Bar Styles */
    .persistent-status-bar {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      width: calc(100% - 48px);
      max-width: 1400px;
      z-index: 10000;
      background: rgba(13, 17, 32, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 12px 24px;
      box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55), inset 0 1px 1px rgba(255, 255, 255, 0.05);
      transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s;
    }
    .persistent-status-bar.hidden {
      transform: translate(-50%, 100px);
      opacity: 0;
      pointer-events: none;
    }
    .persistent-status-bar.completed {
      border-color: rgba(16, 185, 129, 0.35);
      box-shadow: 0 16px 48px rgba(16, 185, 129, 0.08);
    }
    @keyframes spinStatus {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }
    @keyframes pulseGlow {
      from { box-shadow: 0 0 4px rgba(6, 182, 212, 0.2); }
      to { box-shadow: 0 0 12px rgba(6, 182, 212, 0.5); }
    }

    /* History / Library Styles */
    .history-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
    }
    .history-list-container {
      background: rgba(255, 255, 255, 0.01);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 12px;
      overflow: hidden;
    }
    .history-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.88rem;
      text-align: left;
    }
    .history-table th {
      background: rgba(255, 255, 255, 0.02);
      border-bottom: 1px solid var(--border);
      padding: 14px 18px;
      color: var(--text-secondary);
      font-weight: 600;
      font-size: 0.78rem;
      text-transform: uppercase;
      letter-spacing: 0.8px;
    }
    .history-table td {
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      padding: 14px 18px;
      vertical-align: middle;
      color: var(--text-primary);
    }
    .history-table tr:last-child td {
      border-bottom: none;
    }
    .history-table tr:hover td {
      background: rgba(255, 255, 255, 0.015);
    }
    .history-badge {
      display: inline-block;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.06);
      color: var(--text-secondary);
      margin-right: 6px;
      margin-bottom: 4px;
    }
    .history-badge.key-badge {
      color: var(--accent-gold);
      background: rgba(197, 160, 89, 0.1);
      border-color: rgba(197, 160, 89, 0.2);
    }
    .history-badge.bpm-badge {
      color: var(--accent-cyan);
      background: rgba(6, 182, 212, 0.1);
      border-color: rgba(6, 182, 212, 0.2);
    }
    .history-btn-load {
      background: var(--gradient-main);
      color: #000;
      border: none;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 6px;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(6, 182, 212, 0.25);
      transition: all 0.2s;
    }
    .history-btn-load:hover {
      box-shadow: 0 6px 16px rgba(6, 182, 212, 0.4);
      transform: translateY(-1px);
    }
    .history-btn-del {
      background: transparent;
      border: 1px solid rgba(239, 68, 68, 0.3);
      color: #ef4444;
      font-size: 0.78rem;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 6px;
      cursor: pointer;
      transition: all 0.2s;
      margin-left: 8px;
    }
    .history-btn-del:hover {
      background: rgba(239, 68, 68, 0.08);
      border-color: rgba(239, 68, 68, 0.5);
    }

    /* Glowing Toggle Switch for Loudness & Mastering compliance */
    .switch-glow {
      position: relative;
      display: inline-block;
      width: 44px;
      height: 22px;
    }
    .switch-glow input {
      opacity: 0;
      width: 0;
      height: 0;
    }
    .slider-glow {
      position: absolute;
      cursor: pointer;
      top: 0; left: 0; right: 0; bottom: 0;
      background-color: rgba(255, 255, 255, 0.06) !important;
      transition: .3s;
      border-radius: 34px;
      border: 1px solid var(--border) !important;
      box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.4);
    }
    .slider-glow:before {
      position: absolute;
      content: "";
      height: 14px;
      width: 14px;
      left: 3px;
      bottom: 3px;
      background-color: #777;
      transition: .3s;
      border-radius: 50%;
    }
    .switch-glow input:checked + .slider-glow {
      background-color: rgba(0, 229, 255, 0.15) !important;
      border-color: var(--accent-cyan) !important;
      box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
    }
    .switch-glow input:checked + .slider-glow:before {
      transform: translateX(22px);
      background-color: var(--accent-cyan) !important;
      box-shadow: 0 0 8px var(--accent-cyan);
    }

    /* Prominent Status Indicator Progress Bar Pulse */
    #mlStatusIndicator .status-progress-bar {
      box-shadow: 0 0 8px rgba(6, 182, 212, 0.6);
      animation: pulseBar 2s infinite ease-in-out;
    }
    @keyframes pulseBar {
      0%, 100% { opacity: 0.8; }
      50% { opacity: 1; }
    }

    /* Diagnostics & Model Readiness Panel Styles */
    .diagnostics-panel {
      margin: 24px auto 0 auto;
      padding: 20px;
      background: rgba(255, 255, 255, 0.015);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: 12px;
      max-width: 850px;
      width: 100%;
      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
      backdrop-filter: blur(12px);
      box-sizing: border-box;
    }
    .diagnostics-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
      gap: 12px;
    }
    .diagnostics-title {
      font-family: var(--font-main);
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
    }
    .btn-diagnose-retry {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 6px 12px;
      font-size: 0.78rem;
      border-radius: 6px;
      color: #fff;
      cursor: pointer;
      transition: all 0.2s ease;
      font-family: var(--font-main);
      font-weight: 600;
    }
    .btn-diagnose-retry:hover {
      background: rgba(6, 182, 212, 0.1);
      border-color: rgba(6, 182, 212, 0.3);
      color: var(--accent-cyan);
    }
    .diagnostics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    @media (max-width: 850px) {
      .diagnostics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 550px) {
      .diagnostics-grid {
        grid-template-columns: 1fr;
      }
    }
    .diagnostics-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      background: rgba(0, 0, 0, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.03);
      border-radius: 8px;
      box-sizing: border-box;
    }
    .diag-status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      flex-shrink: 0;
    }
    .diag-status-dot.pending {
      background: #eab308;
      box-shadow: 0 0 8px #eab308;
    }
    .diag-status-dot.success {
      background: #10b981;
      box-shadow: 0 0 8px #10b981;
    }
    .diag-status-dot.error {
      background: #ef4444;
      box-shadow: 0 0 8px #ef4444;
    }
    .diag-status-dot.info {
      background: #3b82f6;
      box-shadow: 0 0 8px #3b82f6;
    }
    .diag-status-dot.disabled {
      background: rgba(255, 255, 255, 0.25);
      box-shadow: none;
    }
    .diag-text {
      display: flex;
      flex-direction: column;
      text-align: left;
    }
    .diag-label {
      font-size: 0.8rem;
      font-weight: 600;
      color: #e2e8f0;
      line-height: 1.2;
    }
    .diag-detail {
      font-size: 0.72rem;
      color: var(--text-secondary);
      margin-top: 2px;
      line-height: 1.2;
    }
    .diagnostics-dry-run-status {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 14px;
      padding: 10px 14px;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: 8px;
      box-sizing: border-box;
    }
    .dry-run-text {
      font-size: 0.78rem;
      font-weight: 500;
      color: #fff;
      font-family: var(--font-main);
      text-align: left;
    }

/* Model Loader Onboarding Overlay styles */
.model-loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background: rgba(7, 10, 19, 0.96);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s ease;
  font-family: 'Outfit', sans-serif;
}

.model-loader-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.model-loader-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 48px;
  width: 500px;
  max-width: 90%;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 50px rgba(6, 182, 212, 0.15);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.model-loader-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.03) 0%, transparent 60%);
  pointer-events: none;
  animation: bgPulse 8s infinite alternate;
}

@keyframes bgPulse {
  0% { transform: scale(1) translate(-5%, -5%); }
  100% { transform: scale(1.1) translate(5%, 5%); }
}

.pulse-ring-container {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pulse-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(6, 182, 212, 0.1);
  border: 1.5px solid var(--accent-cyan);
  animation: pulseOuter 2s infinite ease-out;
}

.pulse-core {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #fff;
  z-index: 2;
  animation: pulseCore 1.5s infinite alternate ease-in-out;
}

@keyframes pulseOuter {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.4); opacity: 0; }
}

@keyframes pulseCore {
  0% { transform: scale(0.95); box-shadow: 0 0 15px rgba(6, 182, 212, 0.4); }
  100% { transform: scale(1.05); box-shadow: 0 0 30px rgba(6, 182, 212, 0.8); }
}

.model-loader-card h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0 0 8px;
  background: linear-gradient(135deg, #fff 30%, #a5f3fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.model-loader-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0 0 32px;
  line-height: 1.5;
}

.loader-progress-container {
  margin-bottom: 32px;
}

.loader-progress-track {
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.loader-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #06b6d4 0%, #3b82f6 50%, #a855f7 100%);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.5);
  border-radius: 100px;
  transition: width 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.loader-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  font-size: 0.82rem;
  font-family: 'Inter', sans-serif;
}

#loaderProgressStatus {
  color: var(--text-secondary);
  font-weight: 500;
}

#loaderProgressPercent {
  color: var(--accent-cyan);
  font-weight: 700;
  font-family: monospace;
}

.loader-checklist {
  text-align: left;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 24px;
}

.check-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.check-item:not(:last-child) {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.check-item.completed {
  color: #fff;
}

.check-item.completed .check-dot {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.check-item.completed .check-state {
  color: #10b981;
  font-weight: 600;
}

.check-item.active {
  color: #fff;
}

.check-item.active .check-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.6);
  animation: dotBlink 1s infinite alternate;
}

.check-item.active .check-state {
  color: var(--accent-cyan);
  font-weight: 600;
}

.check-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  margin-right: 12px;
  display: inline-block;
  transition: all 0.3s ease;
}

.check-label-wrap {
  display: flex;
  align-items: center;
  flex: 1;
}

.check-state {
  font-size: 0.78rem;
  font-family: monospace;
  color: var(--text-muted);
}

@keyframes dotBlink {
  0% { opacity: 0.4; }
  100% { opacity: 1; }
}

.loader-action-container {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

.loader-btn-primary {
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  color: #000;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
  transition: all 0.2s ease;
}

.loader-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(6, 182, 212, 0.5);
}

.loader-btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.loader-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
}

/* FREE SYNC READINESS TOOL STYLES */
.srt-card { background: rgba(12, 16, 28, 0.75); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); border: 1px solid rgba(6, 182, 212, 0.2); border-radius: 20px; padding: 36px; box-shadow: 0 32px 80px rgba(0, 0, 0, 0.6), inset 0 1px 1px rgba(255, 255, 255, 0.08); position: relative; overflow: hidden; }
.srt-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--gradient-main); }
.srt-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; margin-bottom: 32px; flex-wrap: wrap; }
.srt-badge { font-size: 0.68rem; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent-cyan); background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.3); padding: 4px 12px; border-radius: 100px; display: inline-block; margin-bottom: 8px; }
.srt-heading { font-family: 'Outfit', sans-serif; font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; color: #fff; letter-spacing: -0.02em; margin-bottom: 6px; }
.srt-sub { font-size: 0.9rem; color: var(--text-secondary); max-width: 620px; line-height: 1.5; }
.srt-tab-group { display: flex; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border); border-radius: 12px; padding: 4px; gap: 4px; }
.srt-tab { padding: 10px 18px; border-radius: 8px; border: none; background: transparent; color: var(--text-secondary); font-size: 0.83rem; font-weight: 600; cursor: pointer; transition: all 0.2s ease; }
.srt-tab:hover { color: #fff; }
.srt-tab.active { background: rgba(6,182,212,0.15); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.srt-body { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; }
@media (max-width: 900px) { .srt-body { grid-template-columns: 1fr; } }
.srt-dropzone { background: rgba(6, 182, 212, 0.02); border: 2px dashed rgba(6, 182, 212, 0.25); border-radius: 16px; padding: 44px 28px; text-align: center; cursor: pointer; transition: all 0.3s ease; }
.srt-dropzone:hover, .srt-dropzone.drag-over { border-color: var(--accent-cyan); background: rgba(6, 182, 212, 0.08); transform: translateY(-2px); }
.srt-dz-icon { font-size: 3.2rem; margin-bottom: 12px; }
.srt-dz-title { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.srt-highlight { color: var(--accent-cyan); text-decoration: underline; }
.srt-dz-sub { font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 16px; }
.srt-dz-privacy { font-size: 0.72rem; color: #22c55e; background: rgba(34, 197, 94, 0.08); border: 1px solid rgba(34, 197, 94, 0.2); padding: 6px 14px; border-radius: 100px; display: inline-block; font-weight: 600; }
.srt-file-status { background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; display: flex; align-items: center; gap: 16px; }
.srt-fs-icon { font-size: 2rem; }
.srt-fs-info { flex: 1; }
.srt-fs-name { font-size: 0.92rem; font-weight: 700; color: #fff; word-break: break-all; }
.srt-fs-meta { font-size: 0.76rem; color: var(--text-secondary); margin-top: 2px; font-family: monospace; }
.srt-fs-remove { background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.2); color: #ef4444; border-radius: 50%; width: 28px; height: 28px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; transition: all 0.2s; }
.srt-fs-remove:hover { background: #ef4444; color: #fff; }
.srt-cl-intro { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.srt-cl-grid { display: flex; flex-direction: column; gap: 10px; }
.srt-cl-item { display: flex; align-items: flex-start; gap: 12px; background: rgba(255, 255, 255, 0.02); border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px; cursor: pointer; transition: all 0.2s ease; position: relative; user-select: none; }
.srt-cl-item:hover { border-color: rgba(255,255,255,0.2); background: rgba(255, 255, 255, 0.04); }
.srt-cl-item input[type="checkbox"] { position: absolute; opacity: 0; width: 1px; height: 1px; margin: -1px; pointer-events: none; }
.srt-cl-box { width: 20px; height: 20px; border-radius: 6px; border: 2px solid var(--text-muted); margin-top: 2px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: all 0.2s ease; }
.srt-cl-item input[type="checkbox"]:checked + .srt-cl-box { background: var(--accent-cyan); border-color: var(--accent-cyan); }
.srt-cl-item input[type="checkbox"]:checked + .srt-cl-box::after { content: '✓'; color: #070a13; font-size: 0.8rem; font-weight: 900; }
.srt-cl-text strong { display: block; font-size: 0.85rem; color: #fff; }
.srt-cl-text small { display: block; font-size: 0.72rem; color: var(--text-muted); }
.srt-score-card { background: rgba(255, 255, 255, 0.025); border: 1px solid var(--border); border-radius: 16px; padding: 28px; text-align: center; }
.srt-gauge-wrap { position: relative; width: 150px; height: 150px; margin: 0 auto 16px; }
.srt-gauge-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.srt-gauge-bg { fill: none; stroke: rgba(255, 255, 255, 0.06); stroke-width: 12; }
.srt-gauge-meter { fill: none; stroke: var(--accent-cyan); stroke-width: 12; stroke-linecap: round; transition: stroke-dashoffset 0.8s ease-out, stroke 0.4s ease; }
.srt-gauge-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.srt-score-num { font-size: 2.5rem; font-weight: 900; color: #fff; line-height: 1; letter-spacing: -0.03em; }
.srt-score-max { font-size: 0.7rem; color: var(--text-muted); }
.srt-grade-pill { font-size: 0.65rem; font-weight: 800; padding: 3px 10px; border-radius: 100px; margin-top: 4px; letter-spacing: 1px; }
.grade-aplus, .grade-a { background: rgba(6,182,212,0.15); color: var(--accent-cyan); border: 1px solid rgba(6,182,212,0.3); }
.grade-b { background: rgba(34,197,94,0.15); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.grade-c { background: rgba(234,179,8,0.15); color: #eab308; border: 1px solid rgba(234,179,8,0.3); }
.grade-f { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.srt-status-title { font-family: 'Outfit', sans-serif; font-size: 1.25rem; font-weight: 800; color: #fff; margin-bottom: 4px; }
.srt-status-desc { font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.4; }
.srt-pillars { display: flex; flex-direction: column; gap: 10px; text-align: left; margin-bottom: 24px; }
.srt-p-head { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 3px; }
.srt-p-head strong { color: var(--accent-cyan); font-family: monospace; }
.srt-p-track { height: 6px; background: rgba(255, 255, 255, 0.06); border-radius: 3px; overflow: hidden; }
.srt-p-fill { height: 100%; background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple)); border-radius: 3px; transition: width 0.6s ease; }
.srt-findings { text-align: left; background: rgba(0, 0, 0, 0.2); border: 1px solid var(--border); border-radius: 12px; padding: 14px; margin-bottom: 24px; }
.srt-f-heading { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-muted); margin-bottom: 10px; }
.srt-f-list { list-style: none; display: flex; flex-direction: column; gap: 8px; max-height: 160px; overflow-y: auto; }
.srt-f-item { display: flex; align-items: flex-start; gap: 8px; font-size: 0.78rem; line-height: 1.35; }
.srt-f-item.pos { color: #22c55e; } .srt-f-item.neg { color: #f87171; }
.srt-f-icon { flex-shrink: 0; font-weight: 700; }
.srt-cta-wrap { margin-top: 16px; }
.srt-cta-btn { display: block; width: 100%; padding: 14px 20px; border-radius: 8px; background: var(--gradient-main); color: #fff; font-size: 0.95rem; font-weight: 800; text-align: center; box-shadow: 0 4px 20px rgba(6, 182, 212, 0.35); transition: all 0.25s ease; text-decoration: none; }
.srt-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(6, 182, 212, 0.5); }
.hidden { display: none !important; }

.ai-terminal-log {
  scrollbar-width: thin;
  scrollbar-color: rgba(6, 182, 212, 0.3) transparent;
  color: #cbd5e1 !important;
}
.ai-terminal-log span,
#aiTerminalLog span,
#terminalLogContent span {
  color: #cbd5e1;
}
.ai-terminal-log .log-timestamp,
#terminalLogContent .log-timestamp {
  color: #94a3b8 !important;
}

/* --- INNOVATIVE ONBOARDING OVERLAY STYLES --- */
.innovative-onboarding-overlay {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 10000;
  background: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.innovative-onboarding-overlay.hidden {
  display: none !important;
  pointer-events: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
}
.innovative-onboarding-card {
  background: rgba(13, 17, 32, 0.92);
  border: 1px solid rgba(6, 182, 212, 0.3);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 30px rgba(6, 182, 212, 0.15);
  border-radius: 20px;
  max-width: 620px;
  width: 100%;
  padding: 32px;
  position: relative;
  animation: modalScaleIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalScaleIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.innovative-onboarding-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 14px;
}
.onboarding-brand-tag {
  font-family: var(--font-heading, 'Outfit', sans-serif);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--accent-cyan, #06b6d4);
  text-transform: uppercase;
}
.onboarding-close-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #94a3b8;
  font-size: 1rem;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.onboarding-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
  color: #fff;
}
.onboarding-title {
  font-family: var(--font-heading, 'Outfit', sans-serif);
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}
.onboarding-subtitle {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-bottom: 24px;
  line-height: 1.5;
}
.diag-hud-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.diag-hud-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hud-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.hud-dot.success {
  background: #22c55e;
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.6);
}
.hud-dot.pending {
  background: #eab308;
  box-shadow: 0 0 10px rgba(234, 179, 8, 0.6);
}
.hud-info {
  display: flex;
  flex-direction: column;
}
.hud-label {
  font-size: 0.75rem;
  color: #64748b;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.hud-status {
  font-size: 0.85rem;
  color: #f0f4ff;
  font-weight: 600;
}
.onboarding-action-row {
  display: flex;
  justify-content: flex-end;
}
.onboarding-primary-btn {
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  color: #fff;
  border: none;
  font-family: var(--font-heading, 'Outfit', sans-serif);
  font-size: 0.95rem;
  font-weight: 800;
  padding: 12px 24px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.35);
  transition: all 0.2s;
}
.onboarding-primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.5);
}
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}
.persona-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 20px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
}
.persona-card:hover {
  border-color: #06b6d4;
  background: rgba(6, 182, 212, 0.08);
  transform: translateY(-3px);
}
.persona-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 10px;
}
.persona-card h3 {
  font-size: 0.9rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
}
.persona-card p {
  font-size: 0.75rem;
  color: #94a3b8;
  line-height: 1.4;
}
@media (max-width: 640px) {
  .diag-hud-grid, .persona-grid { grid-template-columns: 1fr; }
}



/* Tier Selector Controls */
.tier-selector-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(13, 17, 32, 0.8);
  border: 1px solid var(--border-cyan);
  border-radius: 12px;
  padding: 10px 16px;
  margin-bottom: 20px;
}
.tsb-label {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--accent-cyan);
}
.tsb-tabs {
  display: flex;
  gap: 8px;
}
.tsb-tab {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.tsb-tab.active {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}
.tsb-tab:hover:not(.active) {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

/* Free Tier Uncluttered Mode */
.mode-free-tier .pro-only-feature,
.mode-free-tier .advanced-overwhelm-panel {
  display: none !important;
}
.free-tier-cta-card {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.06), rgba(168, 85, 247, 0.06));
  border: 1px dashed var(--accent-cyan);
  border-radius: 12px;
  padding: 24px;
  margin-top: 24px;
  text-align: center;
}
.ftc-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}
.ftc-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 16px;
  line-height: 1.5;
}
.ftc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  max-width: 720px;
  margin: 0 auto 20px;
  text-align: left;
}
.ftc-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.8rem;
  color: var(--text-primary);
}
.ftc-item strong {
  display: block;
  color: var(--accent-cyan);
  margin-bottom: 2px;
}

/* ==========================================================================
   AUTHENTICATION & PORTAL CARDS (login.html, authGuardModal, paywall)
   ========================================================================== */
.auth-container {
  min-height: calc(100vh - 68px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 20px 60px 20px;
  position: relative;
}

.auth-glow-bg {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.22) 0%, rgba(168, 85, 247, 0.14) 45%, rgba(0, 0, 0, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  padding: 40px;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7), 0 0 35px rgba(6, 182, 212, 0.15);
}

.auth-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.35);
  color: #06b6d4;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.auth-tabs {
  display: flex;
  margin-bottom: 25px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.auth-tab {
  flex: 1;
  text-align: center;
  padding: 12px;
  font-weight: 700;
  color: #94a3b8;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.25s ease;
  font-size: 0.95rem;
}

.auth-tab.active {
  color: #06b6d4;
  border-bottom: 2px solid #06b6d4;
}

.btn-demo-fast {
  width: 100%;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(168, 85, 247, 0.2));
  border: 1px solid #06b6d4;
  color: #06b6d4;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 13px;
  border-radius: 12px;
  cursor: pointer;
  margin-bottom: 14px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
}

.btn-demo-fast:hover {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.35), rgba(168, 85, 247, 0.35));
  transform: translateY(-1px);
  color: #ffffff;
  box-shadow: 0 0 28px rgba(6, 182, 212, 0.3);
}

.btn-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: #ffffff;
  color: #0f172a;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  margin-bottom: 18px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.btn-google:hover {
  background: #f8fafc;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
}

.divider {
  text-align: center;
  margin: 22px 0;
  position: relative;
}

.divider::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.12);
}

.divider span {
  position: relative;
  background: #0f172a;
  padding: 0 14px;
  color: #64748b;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  margin-bottom: 6px;
  color: #94a3b8;
  font-weight: 600;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-size: 0.95rem;
  outline: none;
  box-sizing: border-box;
  transition: border 0.25s ease, background 0.25s ease;
}

.form-group input:focus {
  border-color: #06b6d4;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.25);
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, #06b6d4 0%, #a855f7 100%);
  color: #ffffff;
  font-weight: 800;
  font-size: 1rem;
  padding: 13px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.2s ease;
  box-shadow: 0 6px 24px rgba(6, 182, 212, 0.35);
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(6, 182, 212, 0.5);
  filter: brightness(1.08);
}

/* ── Hero banner & Feature Pills ───────────────────────────────────── */
.studio-hero {
  padding: 72px 24px 44px;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
  position: relative;
}
.studio-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.35);
  color: var(--accent-cyan, #06b6d4);
  font-family: var(--font-main, 'Plus Jakarta Sans', sans-serif);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 22px;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
}
.studio-tag svg {
  color: var(--accent-cyan, #06b6d4);
}
.studio-hero h1 {
  font-family: var(--font-heading, 'Outfit', sans-serif);
  font-size: clamp(2.5rem, 5.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 18px;
}
.gradient-text {
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.studio-hero p {
  font-size: 1.08rem;
  color: #94a3b8;
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto 32px;
}
.feature-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 800px;
  margin: 0 auto;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 100px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}
.pill svg {
  color: var(--accent-cyan, #06b6d4);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.pill:hover {
  background: rgba(15, 23, 42, 0.9);
  border-color: rgba(6, 182, 212, 0.45);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.25);
}
.pill:hover svg {
  transform: scale(1.1);
}