:root{--bg:#0b0e14;--surface:#12161f;--border:#232a38;--text:#e8ecf4;--muted:#9aa4b8;--accent:#6d5cff;--accent-2:#22d3a5;--danger:#f87171}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}header{border-bottom:1px solid var(--border);background:rgba(11,14,20,.85);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:-webkit-sticky;position:sticky;top:0;z-index:10}footer>div,header>div,main{max-width:900px;margin:0 auto;padding:16px 20px}header>div{display:flex;align-items:center;justify-content:space-between}.logo{font-weight:700;font-size:18px;letter-spacing:-.02em}.logo span{color:var(--accent-2)}nav a{color:var(--muted);text-decoration:none;font-size:14px}nav a:hover{color:var(--text)}main{padding-top:48px;padding-bottom:64px}h1{font-size:clamp(28px,4.5vw,44px);line-height:1.15;letter-spacing:-.03em;margin-bottom:12px}h2{font-size:clamp(20px,3vw,28px);letter-spacing:-.02em;margin:48px 0 16px}h3{font-size:17px;margin:24px 0 8px}p{color:var(--muted);margin-bottom:12px}.hero{text-align:center;padding:32px 0 24px}.hero p{max-width:620px;margin:0 auto 24px;font-size:17px}.detector{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:24px;max-width:640px;margin:0 auto;text-align:left}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{flex:1 1;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:transparent;color:var(--muted);cursor:pointer;font-size:14px;transition:all .15s}.tab.active{background:var(--accent);border-color:var(--accent);color:#fff}input[type=file],input[type=url]{width:100%;padding:12px;border:1px solid var(--border);border-radius:8px;background:#0d1119;color:var(--text);font-size:14px}input[type=file]{padding:10px}button.primary{width:100%;margin-top:12px;padding:13px;border:none;border-radius:8px;background:linear-gradient(135deg,var(--accent),#8b5cf6);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:opacity .15s}button.primary:hover{opacity:.9}button.primary:disabled{opacity:.5;cursor:not-allowed}.result{margin-top:16px;padding:16px;border-radius:10px;border:1px solid var(--border);background:#0d1119}.score-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.score{font-size:28px;font-weight:700;color:var(--accent-2)}.bar{height:8px;border-radius:99px;background:var(--border);overflow:hidden;margin:8px 0 12px}.bar>div{height:100%;background:linear-gradient(90deg,var(--accent-2),var(--accent));transition:width .6s ease}.verdict{font-size:15px;font-weight:600;margin-bottom:8px}.result ul{list-style:none;font-size:13px;color:var(--muted)}.result li{padding:3px 0}.error{margin-top:12px;padding:10px 12px;border-radius:8px;background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.35);color:var(--danger);font-size:14px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));grid-gap:14px;gap:14px;margin-top:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px}.card h3{margin-top:0}.card p{font-size:14px;margin-bottom:0}details{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:10px}summary{cursor:pointer;font-weight:600;font-size:15px}details p{margin-top:10px;font-size:14px}.note{text-align:center;margin-top:12px}.note,footer{font-size:13px;color:var(--muted)}footer{border-top:1px solid var(--border)}footer>div{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}@media (max-width:600px){main{padding-top:32px}.hero{padding:16px 0}}