:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #0ea5e9;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
  --radius: 12px;
  --container: 1140px;
  --header-h: 64px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); height: var(--header-h); }
.header-inner { max-width: var(--container); margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; }
.brand { font-size: 20px; font-weight: 800; color: var(--text); display: flex; align-items: center; gap: 8px; }
.brand .logo { width: 28px; height: 28px; background: linear-gradient(135deg, var(--primary), var(--secondary)); border-radius: 8px; display: inline-block; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: var(--text); font-weight: 500; }
.nav-links a:hover { color: var(--primary); text-decoration: none; }
.auth-buttons { display: flex; gap: 12px; align-items: center; }
.btn { display: inline-block; padding: 10px 18px; border-radius: 8px; font-weight: 600; font-size: 14px; border: 1px solid transparent; cursor: pointer; transition: all 0.15s; text-align: center; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; text-decoration: none; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost { background: transparent; color: var(--text); }
.btn-ghost:hover { background: var(--bg); color: var(--primary); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.hidden { display: none !important; }

/* Hero */
.hero { padding: 72px 24px 48px; text-align: center; }
.hero h1 { font-size: 42px; line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; max-width: 900px; margin: 0 auto 16px; }
.hero h1 .highlight { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p.subtitle { font-size: 18px; color: var(--muted); max-width: 720px; margin: 0 auto 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; align-items: center; flex-wrap: wrap; }
.hero-badge { display: inline-block; padding: 6px 14px; border-radius: 999px; background: #eff6ff; color: var(--primary); font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 40px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat strong { display: block; font-size: 28px; font-weight: 800; }
.stat span { color: var(--muted); font-size: 14px; }

/* Sections */
.section { padding: 48px 0; }
.section-title { font-size: 30px; font-weight: 800; text-align: center; margin-bottom: 8px; letter-spacing: -0.01em; }
.section-subtitle { text-align: center; color: var(--muted); margin-bottom: 40px; }

/* Pricing cards */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.pricing-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 24px; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.pricing-card.featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary), var(--shadow); }
.pricing-card .tier { font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; font-size: 13px; }
.pricing-card .price { font-size: 36px; font-weight: 800; margin: 12px 0 4px; }
.pricing-card .price span { font-size: 14px; color: var(--muted); font-weight: 500; }
.pricing-card ul { list-style: none; margin: 20px 0; flex: 1; }
.pricing-card ul li { padding: 6px 0; color: var(--text); display: flex; gap: 8px; align-items: flex-start; font-size: 14px; }
.pricing-card ul li::before { content: "✓"; color: var(--success); font-weight: 700; }

/* Audit form */
.audit-form-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); max-width: 680px; margin: 0 auto; padding: 40px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 14px; }
.form-group input, .form-group select { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; background: #fff; color: var(--text); }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.form-hint { font-size: 13px; color: var(--muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* Auth inline */
.auth-inline { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; margin-bottom: 20px; }
.auth-inline h4 { margin-bottom: 12px; font-weight: 700; }
.auth-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.auth-tab { padding: 6px 14px; border-radius: 6px; border: 1px solid var(--border); background: #fff; cursor: pointer; font-weight: 600; font-size: 14px; }
.auth-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.auth-error { color: var(--danger); font-size: 14px; margin-top: 10px; }

/* Cards / dashboard */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; margin-bottom: 24px; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.card .muted { color: var(--muted); font-size: 14px; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-warning { background: #fef3c7; color: var(--warning); }
.badge-danger { background: #fee2e2; color: var(--danger); }
.badge-neutral { background: #f1f5f9; color: var(--muted); }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f8fafc; font-weight: 700; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.03em; }
tr:hover td { background: #f8fafc; }
td .price { font-weight: 600; }
.empty { color: var(--muted); text-align: center; padding: 32px 16px; }

/* Audit report */
.report-hero { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; border-radius: var(--radius); padding: 32px; margin-bottom: 24px; }
.report-hero h2 { font-size: 28px; margin-bottom: 8px; }
.report-hero p { opacity: 0.9; }
.report-score { font-size: 48px; font-weight: 800; margin-top: 8px; }
.conclusion { border-left: 4px solid var(--primary); padding: 16px 20px; background: #eff6ff; border-radius: 0 8px 8px 0; margin-bottom: 24px; }
.conclusion h3 { font-weight: 700; margin-bottom: 8px; }
.recommendation { border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-bottom: 12px; background: var(--surface); }
.recommendation h4 { font-weight: 700; }
.recommendation .cite { font-size: 13px; color: var(--muted); margin-top: 8px; display: flex; gap: 6px; align-items: flex-start; flex-wrap: wrap; }
.recommendation .cite a { word-break: break-all; }
.confidence { font-weight: 700; font-size: 13px; }

/* Poll indicator */
#poll-status { display: flex; align-items: center; gap: 12px; justify-content: center; padding: 24px; }
.spinner { width: 20px; height: 20px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 24px 0; margin-top: 48px; color: var(--muted); font-size: 14px; text-align: center; }

/* Toast */
#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: #111827; color: #fff; padding: 12px 24px; border-radius: 8px; font-size: 14px; z-index: 100; box-shadow: 0 8px 24px rgba(0,0,0,0.2); transition: opacity 0.3s; }

@media (max-width: 640px) {
  .hero h1 { font-size: 32px; }
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 16px; gap: 10px; }
  .nav-links { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 32px 0; }
}/* S2-A(f): legal, beta banner, UGS footer, feedback */ .legal-page{max-width:860px;margin:0 auto;padding:32px 16px 60px} .legal-page h1{font-size:28px;margin-bottom:8px} .legal-page h2{font-size:19px;margin:28px 0 8px} .legal-page p,.legal-page li{line-height:1.6} .legal-page ul{padding-left:20px;margin-bottom:16px} .legal-page a{color:#2563eb} .beta-banner{background:#fef3c7;color:#78350f;border-bottom:1px solid #fcd34d;padding:8px 16px;text-align:center;font-size:14px;font-weight:500} .beta-banner a{color:#92400e;text-decoration:underline;font-weight:600} .site-footer .footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:24px} .site-footer h4{color:#fff;font-size:14px;margin-bottom:10px} .site-footer a{color:#94a3b8;text-decoration:none;display:block;margin:0 0 6px;font-size:14px} .site-footer a:hover{color:#fff} .footer-legal{margin-top:20px;padding-top:16px;border-top:1px solid #334155;text-align:center;font-size:13px;color:#94a3b8} .feedback-modal{position:fixed;inset:0;background:rgba(15,23,42,0.5);display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px} .feedback-modal form{background:#fff;max-width:520px;width:100%;border-radius:12px;padding:24px;box-shadow:0 20px 40px rgba(0,0,0,0.15);max-height:90vh;overflow-y:auto} .feedback-modal h3{font-size:20px;margin-bottom:4px} .feedback-modal .form-group{margin-bottom:12px} .feedback-modal label{font-weight:600;font-size:14px;display:block;margin-bottom:4px} .feedback-modal input,.feedback-modal textarea,.feedback-modal select{width:100%;padding:8px 10px;border:1px solid #e2e8f0;border-radius:6px;font-size:14px;font-family:inherit} .feedback-modal .form-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px} .feedback-status{font-size:14px;margin-top:8px}