:root {
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --card: #fff;
  --border: #e2e8f0;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --green: #059669;
  --green-light: #10b981;
  --yellow: #d97706;
  --red: #dc2626;
  --text: #334155;
  --text-muted: #64748b;
  --white: #0f172a;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --max-width: 1100px;
  --transition: .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-light); }
img { max-width: 100%; display: block; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* NAV */
.nav { background: rgba(255,255,255,.9); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); position: fixed; top: 0; left: 0; right: 0; z-index: 100; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.nav-logo { font-family: var(--font-heading); font-size: 1.3rem; color: var(--white); }
.nav-logo img { height: 24px; }
.nav-links { display: flex; gap: 20px; }
.nav-links a { color: var(--text-muted); font-size: .8rem; font-weight: 500; }
.nav-links a:hover { color: var(--white); }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 24px; height: 18px; position: relative; z-index: 101; }
.nav-toggle span { display: block; width: 100%; height: 2px; background: var(--text); position: absolute; left: 0; transition: var(--transition); }
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 8px; }
.nav-toggle span:nth-child(3) { top: 16px; }
.nav-toggle.active span:nth-child(1) { top: 8px; transform: rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { top: 8px; transform: rotate(-45deg); }

/* HERO */
.hero { padding: 120px 0 48px; text-align: center; background: linear-gradient(180deg, #eff6ff 0%, var(--bg) 100%); }
.hero h1 { font-family: var(--font-body); font-size: clamp(1.6rem, 3.5vw, 2.4rem); color: var(--white); line-height: 1.2; margin-bottom: 12px; font-weight: 700; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-sub { color: var(--text-muted); font-size: 1rem; margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto; }

/* AUDIT BOX */
.audit-box { display: flex; gap: 0; max-width: 560px; margin: 0 auto; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.audit-box input { flex: 1; padding: 16px 20px; background: transparent; border: none; color: var(--white); font-size: 1rem; outline: none; }
.audit-box input::placeholder { color: var(--text-muted); }
.audit-box button { padding: 16px 28px; background: var(--blue); color: #fff; border: none; font-weight: 600; font-size: .95rem; cursor: pointer; transition: background var(--transition); white-space: nowrap; }
.audit-box button:hover { background: var(--blue-light); box-shadow: 0 2px 8px rgba(37,99,235,.3); }
.audit-box button:disabled { opacity: .6; cursor: wait; }

/* AUDIT RESULT */
.audit-result { max-width: 560px; margin: 24px auto 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; text-align: left; box-shadow: var(--shadow-md); }
.score-big { font-size: 3rem; font-weight: 700; line-height: 1; }
.score-big.high { color: var(--green); }
.score-big.mid { color: var(--yellow); }
.score-big.low { color: var(--red); }
.score-label { color: var(--text-muted); font-size: .875rem; margin-bottom: 16px; }
.breakdown-item { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .875rem; }
.breakdown-item:last-child { border-bottom: none; }
.breakdown-bar { width: 60px; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.breakdown-fill { height: 100%; border-radius: 3px; }

/* STATS */
.stats-bar { background: #1e3a5f; border: none; padding: 24px 0; }
.stat span { display: block; font-size: 1.75rem; font-weight: 800; color: #fff !important; letter-spacing: -.02em; }
.stat small { color: #94a3b8 !important; font-size: .65rem; letter-spacing: 1.5px; }
.stats-grid { display: flex; justify-content: center; gap: 60px; text-align: center; }
.stat span { display: block; font-size: 1.75rem; font-weight: 700; color: var(--white); }
.stat small { color: var(--text-muted); font-size: .8rem; text-transform: uppercase; letter-spacing: 1px; }

/* SECTIONS */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-family: var(--font-body); font-size: 1.2rem; font-weight: 700; color: var(--white); text-align: center; margin-bottom: 28px; letter-spacing: -.01em; }

/* CATEGORIES */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.cat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; cursor: pointer; transition: all var(--transition); box-shadow: var(--shadow); }
.cat-card:hover { border-color: var(--blue); transform: translateY(-3px); box-shadow: 0 6px 16px rgba(37,99,235,.1); }
.cat-icon { margin-bottom: 8px; color: var(--blue); }
.cat-card .cat-name { font-weight: 600; color: var(--white); font-size: .9rem; margin-bottom: 4px; }
.cat-card .cat-count { font-size: .8rem; color: var(--text-muted); }

/* SITES GRID */
.sites-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.site-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; transition: all var(--transition); box-shadow: var(--shadow); }
.site-card:hover { border-color: var(--blue); box-shadow: 0 6px 16px rgba(37,99,235,.08); transform: translateY(-2px); }
.site-card-podium { border-color: var(--blue); background: linear-gradient(135deg, #eff6ff 0%, #fff 50%); }
.site-card-podium:hover { border-color: var(--blue-light); }
.medal { display: inline-block; font-size: .65rem; font-weight: 700; padding: 2px 8px; border-radius: 4px; vertical-align: middle; }
.medal.gold { background: #1d4ed8; color: #fff; }
.medal.silver { background: #3b82f6; color: #fff; }
.medal.bronze { background: #60a5fa; color: #fff; }
.medal.top10 { background: #eff6ff; color: var(--blue); }
.site-card-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.site-card h3 { font-size: 1rem; color: var(--white); font-weight: 600; }
.site-card .domain { font-size: .8rem; color: var(--text-muted); margin-bottom: 8px; }
.site-card .desc { font-size: .85rem; color: var(--text-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.site-card-footer { display: flex; align-items: center; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.site-card-cat { padding: 2px 10px; background: var(--bg-alt); border-radius: 20px; font-size: .7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.hosted-badge { padding: 2px 10px; background: #eff6ff; border: 1px solid #bfdbfe; border-radius: 20px; font-size: .65rem; color: var(--blue); font-weight: 600; letter-spacing: .3px; }
.friendly-badge { padding: 2px 10px; background: #ecfdf5; border: 1px solid #a7f3d0; border-radius: 20px; font-size: .65rem; color: #059669; font-weight: 600; letter-spacing: .3px; }
.score-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 28px; border-radius: 6px; font-weight: 700; font-size: .8rem; }
.score-badge.high { background: #ecfdf5; color: var(--green); }
.score-badge.mid { background: #fffbeb; color: var(--yellow); }
.score-badge.low { background: #fef2f2; color: var(--red); }

/* TIPS */
.tip { padding: 8px 12px; margin: 4px 0 8px; background: #eff6ff; border-left: 3px solid var(--blue); border-radius: 0 var(--radius) var(--radius) 0; font-size: .8rem; color: var(--text-muted); line-height: 1.5; }
.tip a { color: var(--blue); }
/* ACTION OPTIONS */
.action-options { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 20px; }
.action-card { padding: 16px; border: 1px solid var(--border); border-radius: var(--radius); text-align: center; }
.action-card h4 { font-size: .9rem; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.action-card p { font-size: .75rem; color: var(--text-muted); margin-bottom: 12px; line-height: 1.4; }
.action-card-featured { border-color: var(--blue); background: #eff6ff; }
@media (max-width: 768px) { .action-options { grid-template-columns: 1fr; } }

.llms-preview { margin-top: 20px; border-top: 1px solid var(--border); padding-top: 20px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: var(--blue); color: #fff; border-radius: var(--radius); font-weight: 600; font-size: .95rem; border: none; cursor: pointer; transition: all var(--transition); }
.btn:hover { background: var(--blue-light); color: #fff; transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1px solid var(--blue); color: var(--blue); }
.btn-outline:hover { background: #eff6ff; color: var(--blue); }

/* CTA BANNER */
.cta-banner { display: flex; align-items: center; justify-content: space-between; gap: 24px; background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%); border-radius: var(--radius); padding: 28px 32px; }
.cta-banner h2 { font-family: var(--font-body); font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.cta-banner p { color: #cbd5e1; font-size: .9rem; margin: 0; }
.cta-banner .btn { background: #fff; color: var(--blue); white-space: nowrap; flex-shrink: 0; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.15); font-weight: 700; }
.cta-banner .btn:hover { background: #f1f5f9; color: var(--blue); box-shadow: 0 4px 12px rgba(0,0,0,.2); }

/* FOOTER */
.footer { padding: 32px 0; border-top: 1px solid var(--border); text-align: center; }
.footer p { font-size: .8rem; color: var(--text-muted); margin-bottom: 8px; }
.footer a { color: var(--text-muted); }
.footer a:hover { color: var(--blue); }

/* BROWSE LAYOUT */
.browse-layout { display: grid; grid-template-columns: 220px 1fr; gap: 32px; }
.browse-sidebar { position: sticky; top: 80px; align-self: start; }
.sidebar-title { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); margin-bottom: 12px; }
.cat-link { display: block; padding: 8px 12px; border-radius: 6px; font-size: .875rem; color: var(--text); transition: all var(--transition); margin-bottom: 2px; }
.cat-link:hover { background: var(--bg-alt); color: var(--blue); }
.cat-link.active { background: #eff6ff; color: var(--blue); font-weight: 600; }
.browse-controls { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.result-count { font-size: .875rem; color: var(--text-muted); }
.browse-controls select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--card); color: var(--text); font-size: .85rem; }
.pagination { display: flex; justify-content: center; gap: 4px; margin-top: 24px; }
.pagination button { padding: 8px 14px; border: 1px solid var(--border); border-radius: 6px; background: var(--card); color: var(--text); cursor: pointer; font-size: .85rem; transition: all var(--transition); }
.pagination button:hover { border-color: var(--blue); color: var(--blue); }
.pagination button.active { background: var(--blue); color: #fff; border-color: var(--blue); }

/* SITE DETAIL */
.site-detail { max-width: 700px; margin: 0 auto; }
.detail-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; margin: 20px 0 24px; }
.detail-name { font-family: var(--font-body); font-size: 1.5rem; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.detail-domain { font-size: .9rem; color: var(--text-muted); margin-bottom: 12px; }
.detail-desc { color: var(--text); line-height: 1.6; }
.detail-score { text-align: center; flex-shrink: 0; }
.detail-links { display: flex; gap: 12px; margin-bottom: 24px; }
.detail-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; box-shadow: var(--shadow); }
.detail-card h3 { font-size: .95rem; font-weight: 600; color: var(--white); margin-bottom: 12px; }
.detail-meta { display: flex; gap: 24px; font-size: .85rem; color: var(--text-muted); }
.verified-badge { background: #ecfdf5; color: #059669; padding: 2px 10px; border-radius: 20px; font-weight: 600; font-size: .8rem; }

/* SUBMIT */
.submit-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-bottom: 32px; box-shadow: var(--shadow-md); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; font-size: .875rem; color: var(--white); margin-bottom: 6px; }
.form-group input { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: 1rem; outline: none; transition: border-color var(--transition); }
.form-group input:focus { border-color: var(--blue); }
.form-group small { display: block; margin-top: 4px; font-size: .8rem; color: var(--text-muted); }
.submit-info { margin-bottom: 28px; }
.submit-info h3 { font-family: var(--font-body); font-size: 1.05rem; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.submit-info ol { padding-left: 20px; }
.submit-info li { margin-bottom: 10px; font-size: .9rem; color: var(--text); }
.submit-info p { font-size: .9rem; color: var(--text); line-height: 1.6; }
.alert { padding: 14px 18px; border-radius: var(--radius); font-size: .9rem; line-height: 1.5; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }
.alert a { font-weight: 600; }

/* AUDIT PAGE CHECKS */
.check-list { display: flex; flex-direction: column; gap: 16px; }
.check-item { display: flex; gap: 16px; align-items: flex-start; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.check-pts { min-width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: #eff6ff; color: var(--blue); font-weight: 700; border-radius: 8px; font-size: .9rem; }
.check-item strong { color: var(--white); display: block; margin-bottom: 4px; }
.check-item p { font-size: .85rem; color: var(--text-muted); margin: 0; }

/* GUIDE */
.guide-content { max-width: 700px; margin: 0 auto; }
.guide-content h2 { font-size: 1.15rem; font-weight: 700; color: var(--white); margin: 32px 0 12px; }
.guide-text { font-size: .9rem; color: var(--text); line-height: 1.7; margin-bottom: 12px; }
.guide-source { font-size: .75rem; color: var(--text-muted); margin-top: 12px; }
.stats-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; text-align: center; box-shadow: var(--shadow); }
.stat-num { font-size: 1.5rem; font-weight: 800; color: var(--blue); display: block; margin-bottom: 4px; }
.stat-card p { font-size: .75rem; color: var(--text-muted); margin: 0; line-height: 1.4; }
.guide-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; box-shadow: var(--shadow); }
.guide-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.guide-pts { background: #eff6ff; color: var(--blue); font-weight: 700; font-size: .8rem; padding: 4px 10px; border-radius: 6px; white-space: nowrap; }
.guide-item h3 { font-size: 1rem; font-weight: 700; color: var(--white); }
.guide-item p { font-size: .85rem; color: var(--text); line-height: 1.6; margin-bottom: 8px; }
.guide-item ol, .guide-item ul { padding-left: 20px; margin-bottom: 8px; }
.guide-item li { font-size: .85rem; color: var(--text); margin-bottom: 4px; }
.guide-item pre { background: var(--bg-alt); padding: 12px; border-radius: 6px; font-size: .78rem; overflow-x: auto; margin: 8px 0; line-height: 1.5; }
.guide-cta { text-align: center; padding: 32px 0; }
.guide-cta h2 { margin-bottom: 8px; }
.guide-cta p { color: var(--text-muted); font-size: .9rem; margin-bottom: 20px; }
.guide-highlight { background: #eff6ff; border: 1px solid #bfdbfe; border-radius: var(--radius); padding: 20px; margin: 16px 0; }
.guide-highlight h3 { font-size: .95rem; font-weight: 700; color: var(--blue); margin-bottom: 8px; }
.guide-highlight p { font-size: .9rem; color: var(--text); margin: 0; line-height: 1.6; }
.guide-highlight strong { color: var(--blue); }
.guide-why { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
@media (max-width: 768px) { .stats-cards { grid-template-columns: 1fr; } }

/* HELP BANNER */
.help-banner { margin-top: 20px; padding: 16px; background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: var(--radius); text-align: center; }
.help-banner strong { color: #065f46; font-size: .9rem; }
.help-banner p { color: #047857; font-size: .8rem; margin-top: 4px; }

/* MODAL */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: flex; align-items: center; justify-content: center; z-index: 200; }
.modal-card { background: var(--card); border-radius: var(--radius); padding: 28px; max-width: 440px; width: 90%; box-shadow: 0 16px 48px rgba(0,0,0,.15); }
.modal-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--white); margin-bottom: 16px; }
.modal-card input, .modal-card textarea { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: .9rem; margin-bottom: 12px; outline: none; font-family: var(--font-body); resize: vertical; }
.modal-card input:focus, .modal-card textarea:focus { border-color: var(--blue); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav-logo img { height: 26px; }
  .nav-toggle { display: block; }
  .nav-links { position: fixed; top: 0; right: -240px; width: 240px; height: 100vh; background: #fff; flex-direction: column; padding: 70px 24px 24px; gap: 0; border-left: 1px solid var(--border); box-shadow: -4px 0 20px rgba(0,0,0,.1); transition: right var(--transition); z-index: 100; }
  .nav-links.open { right: 0; }
  .nav-links a { font-size: .9rem; padding: 12px 0; border-bottom: 1px solid var(--border); }
  .hero { padding: 80px 0 32px; }
  .hero h1 { font-size: 1.4rem; }
  .hero-sub { font-size: .85rem; margin-bottom: 24px; }
  .audit-box { flex-direction: column; }
  .audit-box input { padding: 14px 16px; font-size: .9rem; }
  .audit-box button { padding: 14px; }
  .stats-grid { gap: 20px; }
  .stat span { font-size: 1.3rem !important; }
  .stat small { font-size: .6rem !important; }
  .section { padding: 40px 0; }
  .section-title { font-size: 1.05rem; margin-bottom: 20px; }
  .sites-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .cat-card { padding: 12px; }
  .cat-icon svg { width: 20px; height: 20px; }
  .cat-card .cat-name { font-size: .8rem; }
  .cat-card .cat-count { font-size: .7rem; }
  .cta-banner { flex-direction: column; text-align: center; padding: 20px; }
  .cta-banner h2 { font-size: .95rem; }
  .cta-banner p { font-size: .8rem; }
  .browse-layout { grid-template-columns: 1fr; }
  .browse-sidebar { position: static; display: flex; flex-wrap: wrap; gap: 6px; }
  .sidebar-title { width: 100%; }
  .detail-header { flex-direction: column; }
  .detail-links { flex-direction: column; }
  .detail-meta { flex-direction: column; gap: 8px; }
  .btn { padding: 10px 20px; font-size: .85rem; }
}