:root{--bg:#080b12;--panel:#0f1420;--panel2:#141b2a;--line:#263147;--text:#f4f7fb;--muted:#94a3b8;--accent:#7c5cff;--accent2:#36d1dc;--danger:#ff5d73;--ok:#4ade80;--gold:#fbbf24;--shadow:0 18px 60px rgba(0,0,0,.35)}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at 20% 0,#171b33 0,transparent 35%),radial-gradient(circle at 100% 0,#102d33 0,transparent 28%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.topbar{height:68px;border-bottom:1px solid var(--line);background:rgba(8,11,18,.78);backdrop-filter:blur(18px);position:sticky;top:0;z-index:20}.topbar .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.03em}.brand img{width:34px;height:34px}.brand small{font-weight:700;color:var(--muted)}.nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:12px;padding:10px 14px;cursor:pointer;font-weight:750;transition:.18s}.btn:hover{transform:translateY(-1px);border-color:#4b5f84}.btn.primary{background:linear-gradient(135deg,var(--accent),#4f46e5);border-color:transparent}.btn.danger{background:#2a1117;border-color:#5f2631;color:#ffb6c1}.btn.ghost{background:transparent}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.hero{padding:88px 0 56px}.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:7px 11px;border:1px solid var(--line);background:rgba(15,20,32,.7);border-radius:999px;color:#cbd5e1;font-size:.9rem}.hero h1{font-size:clamp(3rem,8vw,6.5rem);line-height:.9;margin:18px 0;letter-spacing:-.07em}.gradient{background:linear-gradient(90deg,#fff,#a5b4fc 42%,#67e8f9);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:1.1rem;line-height:1.75;color:var(--muted);max-width:720px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.card{background:linear-gradient(180deg,rgba(20,27,42,.95),rgba(12,17,28,.95));border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.login-card{padding:24px}.login-card h2{margin:0 0 6px}.subtle{color:var(--muted)}.field{display:grid;gap:7px;margin:14px 0}.field label{font-size:.88rem;color:#cbd5e1;font-weight:700}.input{width:100%;border:1px solid var(--line);background:#090d16;color:var(--text);border-radius:12px;padding:12px 13px;outline:none}.input:focus{border-color:#6957db;box-shadow:0 0 0 3px rgba(124,92,255,.12)}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding:20px 0 80px}.feature{padding:22px}.feature h3{margin:8px 0}.feature p{color:var(--muted);line-height:1.6}.chat-shell{display:grid;grid-template-columns:260px minmax(0,1fr) 260px;gap:14px;padding:14px 0;height:calc(100vh - 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