* { box-sizing: border-box; margin: 0; }
:root { --bg:#0f1419; --raised:#161b22; --border:#2d333b; --text:#e6edf3; --muted:#8b949e; --accent:#4c8dff; }
body { font-family:-apple-system,"Segoe UI",Roboto,sans-serif; background:var(--bg); color:var(--text); line-height:1.6; }
a { color:var(--accent); text-decoration:none; }
main { max-width:1040px; margin:0 auto; padding:0 20px; }

.nav { display:flex; align-items:center; justify-content:space-between; max-width:1040px; margin:0 auto; padding:18px 20px; }
.nav .brand { font-weight:700; font-size:18px; color:var(--text); }
.nav nav { display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.nav nav > a { color:var(--muted); font-size:14px; }
.nav nav > a:hover { color:var(--text); }

.btn { display:inline-block; padding:8px 16px; border-radius:8px; font-size:14px; font-weight:600; border:1px solid var(--border); color:var(--text) !important; }
.btn.primary { background:var(--accent); border-color:var(--accent); color:#fff !important; }
.btn.ghost:hover { border-color:var(--accent); }
.btn.big { padding:12px 24px; font-size:16px; }

.hero { text-align:center; padding:64px 0 32px; }
.hero h1 { font-size:52px; line-height:1.1; letter-spacing:-1px; }
.sub { color:var(--muted); font-size:18px; max-width:640px; margin:18px auto 0; }
.cta-row { display:flex; gap:12px; justify-content:center; margin:28px 0 40px; flex-wrap:wrap; }
.hero-demo { max-width:760px; margin:0 auto; text-align:left; }
.hero-demo pre { background:var(--raised); border:1px solid var(--border); border-radius:12px; padding:20px; overflow-x:auto; font-size:13px; line-height:1.7; }

.card { background:var(--raised); border:1px solid var(--border); border-radius:12px; padding:20px 22px; }
.card h3 { margin-bottom:8px; font-size:16px; }
.card p { color:var(--muted); font-size:14px; }
.card code { background:#21262d; padding:1px 6px; border-radius:6px; font-size:12px; }

.trio { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:16px; padding:24px 0; }
.strip { text-align:center; color:var(--muted); padding:24px 0 48px; }

.page-head { text-align:center; padding:56px 0 24px; }
.page-head h1 { font-size:40px; letter-spacing:-0.5px; }
.feature-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(290px,1fr)); gap:16px; padding:16px 0 32px; }

.plans { display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:16px; padding:16px 0; align-items:start; }
.plan { display:flex; flex-direction:column; gap:12px; }
.plan.highlight { border-color:var(--accent); box-shadow:0 0 0 1px var(--accent); }
.plan .price { font-size:30px; font-weight:700; }
.plan .price .muted { font-size:13px; font-weight:400; }
.plan ul { list-style:none; padding:0; display:flex; flex-direction:column; gap:6px; }
.plan li { color:var(--muted); font-size:14px; padding-left:20px; position:relative; }
.plan li::before { content:"✓"; position:absolute; left:0; color:var(--accent); }
.plan .btn { text-align:center; margin-top:auto; }

.faq { padding:24px 0 48px; display:flex; flex-direction:column; gap:12px; max-width:720px; margin:0 auto; }
.faq h2 { text-align:center; margin-bottom:8px; }

.contact { max-width:560px; margin:0 auto 56px; }
.contact form { display:flex; flex-direction:column; gap:14px; }
.contact label { display:flex; flex-direction:column; gap:6px; font-size:14px; font-weight:600; }
.contact input, .contact textarea { background:var(--bg); border:1px solid var(--border); border-radius:8px; padding:10px 12px; color:var(--text); font:inherit; font-weight:400; }
.contact .hp { position:absolute; left:-5000px; }
.error { background:#3d1d1d; border:1px solid #6e2c2c; color:#ffb4b4; border-radius:8px; padding:10px 14px; margin-bottom:14px; }

footer { border-top:1px solid var(--border); margin-top:24px; padding:32px 20px; }
.foot-grid { max-width:1040px; margin:0 auto; display:grid; grid-template-columns:repeat(auto-fit,minmax(180px,1fr)); gap:20px; }
.foot-grid a { display:block; color:var(--muted); font-size:14px; padding:2px 0; }
.foot-grid a:hover { color:var(--text); }
.muted { color:var(--muted); } .small { font-size:12px; } .center { text-align:center; margin-top:20px; }

@media (max-width:640px){ .hero h1{font-size:34px} .page-head h1{font-size:28px} }

.announce { background:var(--accent); color:#fff; text-align:center; padding:8px 16px; font-size:14px; font-weight:600; }
.admin-nav { display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-bottom:24px; }