*, *::before, *::after { box-sizing: border-box; font-family: 'Inter', sans-serif; }

    /* ── Page background ── */
    body {
      background: #f8fafc;
      min-height: 100vh;
      margin: 0;
      color: #0f172a;
    }

    /* ── Subtle noise texture & gradient overlay ── */
    body::before {
      content: '';
      position: fixed; inset: 0;
      background: radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.04), transparent 50%),
                  radial-gradient(circle at 85% 30%, rgba(218, 165, 32, 0.04), transparent 50%);
      pointer-events: none; z-index: 0;
    }
    body::after {
      content: '';
      position: fixed; inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
      pointer-events: none; z-index: 0;
      mix-blend-mode: overlay;
    }

    /* ── Header gradient bar ── */
    .header-bar {
      background: linear-gradient(90deg, #1e293b 0%, #0f172a 100%);
    }

    /* ── Accent classes ── */
    .gold { color: #2563eb; }
    .gold-bg { background: linear-gradient(135deg, #3b82f6, #2563eb); }
    .gold-border { border-color: #3b82f6; }
    .gold-text { background: linear-gradient(135deg, #2563eb, #1d4ed8); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

    /* ── Card styling (Glassmorphism) ── */
    .card {
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.6);
      border-radius: 24px;
      box-shadow: 0 10px 40px -10px rgba(15, 23, 42, 0.08), 
                  0 0 0 1px rgba(15, 23, 42, 0.02);
      overflow: hidden;
    }

    /* ── Upload zone ── */
    .upload-zone {
      border: 2px dashed #cbd5e1;
      border-radius: 16px;
      background: rgba(250, 250, 250, 0.6);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      cursor: pointer;
      position: relative;
      overflow: hidden;
    }
    .upload-zone::after {
      content: ''; position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), transparent);
      opacity: 0; transition: opacity 0.3s ease;
    }
    .upload-zone:hover::after { opacity: 1; }
    .upload-zone:hover {
      border-color: #60a5fa;
      background: rgba(239, 246, 255, 0.6);
      transform: translateY(-2px);
      box-shadow: 0 8px 20px -8px rgba(59, 130, 246, 0.2);
    }
    .upload-zone.active-drop {
      border-color: #2563eb;
      background: #eff6ff;
      box-shadow: 0 0 0 4px rgba(59,130,246,0.15);
      transform: scale(1.02);
    }
    .upload-zone.has-file {
      border-style: solid;
      border-color: #e2e8f0;
      background: rgba(255, 255, 255, 0.9);
      box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    }

    /* ── Primary button ── */
    .btn-primary {
      background: #0f172a;
      color: #ffffff;
      border: 1px solid #1e293b;
      border-radius: 12px;
      font-weight: 600;
      font-size: 15px;
      letter-spacing: 0.01em;
      padding: 14px 28px;
      cursor: pointer;
      transition: all 0.2s ease;
      box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
      position: relative;
      overflow: hidden;
    }
    .btn-primary::before {
      content: '';
      position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
      opacity: 0;
      transition: opacity 0.2s ease;
    }
    .btn-primary:hover::before { opacity: 1; }
    .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
    .btn-primary:active { transform: translateY(0); }
    .btn-primary:disabled { background: #f1f5f9; color: #94a3b8; border-color:#e2e8f0; box-shadow: none; cursor: not-allowed; transform: none; }
    .btn-primary:disabled::before { display: none; }

    /* ── Progress bar ── */
    @keyframes progressShimmer {
      0%   { background-position: -400px 0; }
      100% { background-position: 400px 0; }
    }
    .progress-fill {
      background: linear-gradient(90deg, #3b82f6 0%, #60a5fa 50%, #3b82f6 100%);
      background-size: 400px 100%;
      animation: progressShimmer 2s linear infinite;
    }
    .progress-fill.done {
      background: linear-gradient(90deg, #16a34a, #22c55e);
      animation: none;
    }

    /* ── Dot loader ── */
    @keyframes dotBounce {
      0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
      40%            { transform: scale(1);   opacity: 1;   }
    }
    .dot { animation: dotBounce 1.2s ease-in-out infinite; }
    .dot:nth-child(2) { animation-delay: 0.15s; }
    .dot:nth-child(3) { animation-delay: 0.30s; }

    /* ── Log panel ── */
    .log-panel {
      scrollbar-width: thin;
      scrollbar-color: #d4c9b0 transparent;
    }
    .log-panel::-webkit-scrollbar { width: 4px; }
    .log-panel::-webkit-scrollbar-thumb { background: #d4c9b0; border-radius: 4px; }

    /* ── Divider ── */
    .divider { border: none; border-top: 1px solid #ede9e0; }

    /* ── Badge ── */
    .badge {
      display: inline-flex; align-items: center; gap: 4px;
      font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
      padding: 3px 10px; border-radius: 100px;
    }
    .badge-navy { background: #eef0f8; color: #1a1a2e; }
    .badge-gold { background: #fef9ec; color: #92660a; border: 1px solid #f5dfa0; }

    /* ── Summary stats ── */
    .stat-card {
      background: #fdfcf9;
      border: 1px solid #ede9e0;
      border-radius: 10px;
      padding: 14px 18px;
    }

    /* ── Bounce in ── */
    @keyframes bounceIn {
      0%   { transform: scale(0); opacity: 0; }
      60%  { transform: scale(1.2); }
      100% { transform: scale(1); opacity: 1; }
    }
    .bounce-in { animation: bounceIn 0.4s ease forwards; }

    /* ── Fade up ── */
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(8px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .fade-up { animation: fadeUp 0.35s ease forwards; }

    /* ── Accordion ── */
    details summary { list-style: none; cursor: pointer; }
    details summary::-webkit-details-marker { display: none; }
    details[open] .chevron { transform: rotate(180deg); }
    .chevron { transition: transform 0.2s ease; display: inline-block; }

    /* ── Step indicator ── */
    .step-line::after {
      content: '';
      position: absolute; top: 50%; left: 100%;
      width: 100%; height: 1px;
      background: #ede9e0;
      transform: translateY(-50%);
    }

    /* File input hidden */
    input[type="file"] { display: none; }

    /* ── Scrollbar for body ── */
    ::-webkit-scrollbar { width: 6px; }
    ::-webkit-scrollbar-track { background: transparent; }
    ::-webkit-scrollbar-thumb { background: #d4c9b0; border-radius: 6px; }