:root{--bg:#07111f;--bg2:#0b172a;--card:#101d33;--card2:#13243f;--line:rgba(255,255,255,.1);--text:#e8f1ff;--muted:#a9b8cc;--brand:#38bdf8;--brand2:#6366f1;--green:#22c55e;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,sans-serif;background:radial-gradient(circle at 20% 0%,#183b66 0,#07111f 35%,#050914 100%);color:var(--text);line-height:1.6}.container{width:min(1160px,92%);margin:auto}.nav{position:sticky;top:0;z-index:50;background:rgba(5,9,20,.8);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-inner{display:flex;justify-content:space-between;align-items:center;padding:14px 0}.logo{display:flex;gap:10px;align-items:center;text-decoration:none;color:#fff;font-weight:800;font-size:22px}.logo-mark{width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center}.nav-links{display:flex;gap:22px;align-items:center}.nav-links a{color:var(--muted);text-decoration:none;font-size:14px}.nav-links a:hover,.active{color:#fff!important}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.06);color:#fff;text-decoration:none;font-weight:700;cursor:pointer}.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));border:0}.btn.ghost{background:transparent}.mobile-toggle{display:none;background:none;border:0;color:#fff;font-size:26px}.hero{padding:88px 0 64px}.grid{display:grid;gap:28px}.hero-grid{grid-template-columns:1.1fr .9fr;align-items:center}.badge{display:inline-flex;padding:7px 12px;border:1px solid rgba(56,189,248,.35);border-radius:999px;color:#bdefff;background:rgba(56,189,248,.08);font-size:13px}.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.02;margin:18px 0}.grad{background:linear-gradient(135deg,#fff,#7dd3fc,#a5b4fc);-webkit-background-clip:text;color:transparent}.lead{font-size:19px;color:var(--muted);max-width:700px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.hero-card,.card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 25px 80px rgba(0,0,0,.35)}.mock-top{display:flex;gap:8px;margin-bottom:18px}.dot{width:11px;height:11px;border-radius:99px;background:#64748b}.prompt{background:#07111f;border:1px solid var(--line);padding:14px;border-radius:16px;color:#dbeafe}.response-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.mini{border:1px solid var(--line);border-radius:16px;padding:14px;background:rgba(255,255,255,.04)}.mini strong{color:#fff}.mini p,.muted{color:var(--muted);margin:6px 0 0}.section{padding:72px 0}.section-head{max-width:760px;margin-bottom:30px}.section h2{font-size:clamp(30px,4vw,48px);line-height:1.1;margin:0 0 12px}.cards-3{grid-template-columns:repeat(3,1fr)}.cards-2{grid-template-columns:repeat(2,1fr)}.card h3{margin:0 0 8px}.icon{font-size:30px;margin-bottom:12px}.compare-table{overflow:hidden;border-radius:24px;border:1px solid var(--line)}table{width:100%;border-collapse:collapse;background:rgba(255,255,255,.04)}th,td{text-align:left;padding:18px;border-bottom:1px solid var(--line);vertical-align:top}th{background:rgba(56,189,248,.09);color:#fff}.pricing{grid-template-columns:repeat(3,1fr)}.price{font-size:38px;font-weight:900;margin:10px 0}.list{padding-left:20px;color:var(--muted)}.contact-grid{grid-template-columns:.9fr 1.1fr}.form input,.form textarea{width:100%;padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:#07111f;color:#fff;margin-bottom:12px}.form textarea{min-height:130px}.footer{border-top:1px solid var(--line);padding:36px 0;background:#050914}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:24px}.footer a{display:block;color:var(--muted);text-decoration:none;margin:8px 0}.page-hero{padding:64px 0 30px}.auth-wrap{min-height:78vh;display:grid;place-items:center;padding:50px 0}.auth-card{width:min(480px,92%)}.split{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 70px)}.sidebar{border-right:1px solid var(--line);padding:24px;background:rgba(255,255,255,.03)}.sidebar a{display:block;color:var(--muted);text-decoration:none;padding:12px;border-radius:12px;margin-bottom:8px}.sidebar a:hover,.sidebar a.active{background:rgba(56,189,248,.12);color:#fff}.app-main{padding:26px}.model-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.model{border:1px solid var(--line);border-radius:16px;padding:14px;background:rgba(255,255,255,.04)}.workspace textarea{width:100%;min-height:140px;background:#07111f;color:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}.notice{border:1px solid rgba(34,197,94,.35);background:rgba(34,197,94,.08);padding:14px;border-radius:16px;color:#c6f6d5}.faq details{border:1px solid var(--line);border-radius:16px;padding:16px;background:rgba(255,255,255,.04);margin-bottom:12px}.faq summary{font-weight:800;cursor:pointer}@media(max-width:900px){.hero-grid,.cards-3,.cards-2,.pricing,.contact-grid,.footer-grid,.split{grid-template-columns:1fr}.nav-links{display:none;position:absolute;left:0;right:0;top:68px;background:#050914;padding:18px;flex-direction:column;align-items:flex-start}.nav-links.show{display:flex}.mobile-toggle{display:block}.response-grid,.model-list{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--line)}}