:root {
      --bg-dark:    #0a0e1a;
      --bg-card:    #111827;
      --bg-glass:   rgba(255,255,255,0.04);
      --border:     rgba(255,255,255,0.08);
      --accent:     #6366f1;
      --accent-2:   #8b5cf6;
      --success:    #10b981;
      --danger:     #ef4444;
      --warning:    #f59e0b;
      --text-main:  #f1f5f9;
      --text-muted: #94a3b8;
      --radius:     16px;
      --shadow:     0 25px 50px rgba(0,0,0,0.5);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--bg-dark);
      color: var(--text-main);
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* ── Background blobs ── */
    body::before, body::after {
      content: '';
      position: fixed;
      border-radius: 50%;
      filter: blur(120px);
      opacity: 0.12;
      pointer-events: none;
      z-index: 0;
    }
    body::before {
      width: 600px; height: 600px;
      background: var(--accent);
      top: -200px; left: -200px;
    }
    body::after {
      width: 500px; height: 500px;
      background: var(--accent-2);
      bottom: -150px; right: -150px;
    }

    /* ── Layout ── */
    .container {
      position: relative; z-index: 1;
      max-width: 1100px; margin: 0 auto;
      padding: 24px 20px;
    }

    /* ── Header ── */
    header {
      display: flex; align-items: center; justify-content: space-between;
      margin-bottom: 40px; padding: 16px 24px;
      background: var(--bg-glass);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      backdrop-filter: blur(20px);
    }
    .logo { display: flex; align-items: center; gap: 12px; }
    .logo-icon {
      width: 40px; height: 40px; border-radius: 10px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      display: flex; align-items: center; justify-content: center;
      font-size: 20px;
    }
    .logo-text h1 { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }
    .logo-text p { font-size: 12px; color: var(--text-muted); }
    nav { display: flex; gap: 8px; }
    .nav-btn {
      padding: 8px 18px; border-radius: 8px; font-size: 13px; font-weight: 600;
      cursor: pointer; transition: all .2s; border: 1px solid transparent;
      text-decoration: none;
    }
    .nav-btn.active, .nav-btn:hover {
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: #fff;
    }
    .nav-btn:not(.active) { color: var(--text-muted); border-color: var(--border); background: var(--bg-glass); }

    /* ── Status pill ── */
    .status-bar {
      display: flex; align-items: center; gap: 8px;
      padding: 10px 20px; border-radius: 100px;
      background: var(--bg-glass); border: 1px solid var(--border);
      font-size: 12px; color: var(--text-muted);
    }
    .status-dot {
      width: 8px; height: 8px; border-radius: 50%;
      background: var(--success);
      animation: pulse 2s infinite;
    }
    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50%       { opacity: .5; transform: scale(1.3); }
    }

    /* ── Grid ── */
    .main-grid {
      display: grid;
      grid-template-columns: 1fr 380px;
      gap: 20px;
    }
    @media (max-width: 768px) { .main-grid { grid-template-columns: 1fr; } }

    /* ── Card ── */
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow);
    }
    .card-title {
      font-size: 14px; font-weight: 600; color: var(--text-muted);
      text-transform: uppercase; letter-spacing: 1px;
      margin-bottom: 20px; display: flex; align-items: center; gap: 8px;
    }

    /* ── Camera ── */
    .camera-wrap {
      position: relative; width: 100%;
      aspect-ratio: 4/3; background: #000;
      border-radius: 12px; overflow: hidden;
      border: 2px solid var(--border);
    }
    #video {
      width: 100%; height: 100%; object-fit: cover;
      display: block; transform: scaleX(-1); /* mirror */
    }
    #canvas { display: none; }

    /* Face overlay */
    .face-overlay {
      position: absolute; inset: 0; pointer-events: none;
    }
    #faceBox {
      position: absolute;
      border: 2px solid var(--success);
      border-radius: 8px;
      box-shadow: 0 0 0 1px rgba(16,185,129,.3), 0 0 20px rgba(16,185,129,.2);
      transition: all .15s;
      display: none;
    }
    #faceLabel {
      position: absolute;
      top: -30px; left: 0;
      background: var(--success);
      color: #fff; font-size: 11px; font-weight: 700;
      padding: 2px 8px; border-radius: 4px;
      white-space: nowrap;
    }

    /* Camera placeholder */
    .cam-placeholder {
      position: absolute; inset: 0;
      display: flex; flex-direction: column; align-items: center; justify-content: center;
      gap: 12px; color: var(--text-muted);
    }
    .cam-placeholder-icon { font-size: 48px; opacity: .5; }

    /* ── Scan button ── */
    .btn {
      width: 100%; padding: 14px;
      border: none; border-radius: 10px; font-size: 15px; font-weight: 700;
      cursor: pointer; transition: all .2s; margin-top: 16px;
      font-family: 'Inter', sans-serif;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: #fff;
      box-shadow: 0 4px 20px rgba(99,102,241,.4);
    }
    .btn-primary:hover:not(:disabled) {
      transform: translateY(-1px);
      box-shadow: 0 8px 30px rgba(99,102,241,.5);
    }
    .btn-primary:disabled { opacity: .5; cursor: not-allowed; transform: none; }

    /* Auto-scan toggle */
    .toggle-row {
      display: flex; align-items: center; justify-content: space-between;
      margin-top: 14px; padding: 12px 16px;
      background: var(--bg-glass); border-radius: 10px; border: 1px solid var(--border);
    }
    .toggle-label { font-size: 13px; font-weight: 500; }
    .toggle-sub { font-size: 11px; color: var(--text-muted); }
    .toggle {
      position: relative; width: 44px; height: 24px;
      background: var(--border); border-radius: 12px; cursor: pointer;
      transition: background .2s;
    }
    .toggle.on { background: var(--accent); }
    .toggle::after {
      content: '';
      position: absolute; top: 3px; left: 3px;
      width: 18px; height: 18px;
      background: #fff; border-radius: 50%;
      transition: left .2s;
    }
    .toggle.on::after { left: 23px; }

    /* ── Result panel ── */
    .result-panel { display: flex; flex-direction: column; gap: 16px; }

    /* Identity card */
    .identity-card {
      background: var(--bg-glass);
      border: 1px solid var(--border);
      border-radius: 12px; padding: 20px;
      transition: all .3s;
    }
    .identity-card.success { border-color: rgba(16,185,129,.4); background: rgba(16,185,129,.05); }
    .identity-card.danger  { border-color: rgba(239,68,68,.4);  background: rgba(239,68,68,.05); }

    .identity-avatar {
      width: 64px; height: 64px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 28px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      margin: 0 auto 12px;
    }
    .identity-name { font-size: 22px; font-weight: 700; text-align: center; }
    .identity-sub  { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 4px; }

    /* Metrics */
    .metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
    .metric {
      background: var(--bg-glass); border-radius: 8px; padding: 12px;
      border: 1px solid var(--border);
    }
    .metric-label { font-size: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .8px; }
    .metric-value { font-size: 20px; font-weight: 700; margin-top: 4px; }

    /* Progress bar */
    .progress-bar {
      height: 4px; background: var(--border); border-radius: 2px; margin-top: 8px; overflow: hidden;
    }
    .progress-fill {
      height: 100%; border-radius: 2px;
      background: linear-gradient(90deg, var(--accent), var(--accent-2));
      transition: width .5s;
    }

    /* Liveness badge */
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 5px 12px; border-radius: 100px; font-size: 12px; font-weight: 700;
      margin-top: 10px;
    }
    .badge-real    { background: rgba(16,185,129,.15); color: var(--success); border: 1px solid rgba(16,185,129,.3); }
    .badge-fake    { background: rgba(239,68,68,.15);  color: var(--danger);  border: 1px solid rgba(239,68,68,.3); }
    .badge-waiting { background: rgba(148,163,184,.1); color: var(--text-muted); border: 1px solid var(--border); }

    /* ── History log ── */
    .history { max-height: 300px; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; }
    .history::-webkit-scrollbar { width: 4px; }
    .history::-webkit-scrollbar-track { background: transparent; }
    .history::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

    .log-item {
      display: flex; align-items: center; gap: 10px;
      padding: 10px 12px; border-radius: 8px;
      background: var(--bg-glass); border: 1px solid var(--border);
      font-size: 12px; animation: slideIn .3s;
    }
    @keyframes slideIn {
      from { opacity: 0; transform: translateX(10px); }
      to   { opacity: 1; transform: translateX(0); }
    }
    .log-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
    .log-dot.ok   { background: var(--success); }
    .log-dot.fail { background: var(--danger); }
    .log-dot.warn { background: var(--warning); }
    .log-name { font-weight: 600; flex: 1; }
    .log-time { color: var(--text-muted); font-size: 10px; }

    /* ── Spinner ── */
    .spinner {
      display: inline-block; width: 18px; height: 18px;
      border: 2px solid rgba(255,255,255,.3);
      border-top-color: #fff; border-radius: 50%;
      animation: spin .7s linear infinite;
      vertical-align: middle; margin-right: 8px;
    }
    @keyframes spin { to { transform: rotate(360deg); } }

    /* ── Stats row ── */
    .stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px; padding: 16px;
      text-align: center;
    }
    .stat-value { font-size: 28px; font-weight: 800; }
    .stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .8px; margin-top: 4px; }

    /* ── Empty state ── */
    .empty-state {
      text-align: center; padding: 40px 20px; color: var(--text-muted);
    }
    .empty-icon { font-size: 40px; opacity: .3; margin-bottom: 12px; }
    .empty-text { font-size: 13px; }
  

    /* ── Form Group ── */
    .form-group {
      margin-bottom: 24px;
    }
    .form-label {
      display: block; font-size: 14px; font-weight: 600; color: var(--text-muted);
      margin-bottom: 8px;
    }
    .form-input {
      width: 100%; padding: 16px;
      background: var(--bg-glass); border: 1px solid var(--border);
      border-radius: 10px; color: var(--text-main); font-size: 16px;
      font-family: 'Inter', sans-serif; transition: border-color .2s;
    }
    .form-input:focus {
      outline: none; border-color: var(--accent);
      background: rgba(255,255,255,0.08);
    }
    .form-input::placeholder { color: rgba(255,255,255,0.3); }

    /* Guide Overlay */
    .guide-overlay {
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      width: 50%; height: 60%;
      border: 2px dashed rgba(255, 255, 255, 0.4);
      border-radius: 50% 50% 40% 40%;
      pointer-events: none;
    }

    /* ── Additional Action Buttons ── */
    .btn-success {
      background: linear-gradient(135deg, var(--success), #059669);
      color: #fff;
      box-shadow: 0 4px 20px rgba(16,185,129,.4);
      display: flex; align-items: center; justify-content: center; gap: 8px;
    }
    .btn-success:hover:not(:disabled) {
      transform: translateY(-1px);
      box-shadow: 0 8px 30px rgba(16,185,129,.5);
    }
    .btn-success:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }

    /* ── Result Message ── */
    .result-msg {
      margin-top: 20px; padding: 16px; border-radius: 10px;
      font-size: 14px; font-weight: 500; text-align: center;
      display: none; transition: all 0.3s;
    }
    .result-msg.success {
      display: block; background: rgba(16,185,129,.1); border: 1px solid rgba(16,185,129,.3); color: var(--success);
    }
    .result-msg.error {
      display: block; background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3); color: var(--danger);
    }
    .result-msg.info {
      display: block; background: rgba(99,102,241,.1); border: 1px solid rgba(99,102,241,.3); color: #818cf8;
    }
    
    /* Container modifier for register page */
    .container-sm {
      max-width: 900px;
    }