:root { --bg:#0f1115; --card:#1a1e26; --line:#2a2f3a; --fg:#e6e8ec; --muted:#9aa3b2; --ok:#3fb950; --err:#f85149; --accent:#3b82f6; }
* { box-sizing: border-box; }
body { margin:0; font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif; background:var(--bg); color:var(--fg); }
header, main, footer { max-width:860px; margin:0 auto; padding:0 20px; }
header { padding-top:32px; }
h1 { margin:0; font-size:26px; }
.tag { color:var(--muted); margin-top:6px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:20px; margin:20px 0; }
.card h2 { margin:0 0 12px; font-size:18px; }
.muted { color:var(--muted); }
label { display:block; margin:14px 0 6px; font-weight:600; font-size:13px; color:var(--muted); }
input, textarea, select { width:100%; background:#0d1017; border:1px solid var(--line); color:var(--fg); border-radius:8px; padding:10px 12px; font:inherit; }
textarea { resize:vertical; }
.row { display:flex; gap:10px; margin-top:10px; }
.row input { flex:1; }
button { background:var(--accent); color:#fff; border:0; border-radius:8px; padding:10px 16px; font:inherit; font-weight:600; cursor:pointer; white-space:nowrap; }
button.secondary { background:#2a2f3a; }
button:disabled { opacity:.6; cursor:default; }
button#run { margin-top:16px; }
.status { margin-top:10px; min-height:1.2em; font-size:13px; }
.status.ok { color:var(--ok); }
.status.err { color:var(--err); }
.badge { font-size:12px; padding:2px 8px; border-radius:999px; background:#2a2f3a; vertical-align:middle; }
.badge.ok { background:rgba(63,185,80,.18); color:var(--ok); }
.badge.err { background:rgba(248,81,73,.18); color:var(--err); }
pre { white-space:pre-wrap; background:#0d1017; border:1px solid var(--line); border-radius:8px; padding:14px; overflow:auto; }
table { width:100%; border-collapse:collapse; font-size:13px; }
th, td { text-align:left; padding:8px; border-bottom:1px solid var(--line); vertical-align:top; }
th { color:var(--muted); font-weight:600; }
.hidden { display:none; }
footer { padding-bottom:40px; }

/* ---------- app tabs ---------- */
.tabs { display:flex; gap:6px; margin:22px 0 0; border-bottom:1px solid var(--line); }
.tab { background:transparent; color:var(--muted); border:0; border-bottom:2px solid transparent; border-radius:0; padding:11px 16px; font-weight:600; cursor:pointer; }
.tab:hover { color:var(--fg); }
.tab.active { color:var(--fg); border-bottom-color:var(--accent); }
.panel .card.intro { margin-top:16px; }
.notice { margin-top:14px; padding:12px 14px; border:1px solid rgba(248,81,73,.4); background:rgba(248,81,73,.08); border-radius:8px; color:var(--fg); font-size:14px; }
.steps { margin:14px 0 0; padding-left:20px; }
.steps li { margin:5px 0; }

/* ---------- landing page ---------- */
body.landing { max-width:none; }
body.landing nav, .hero, .band > h2, .band > .sub, .band > .callout, .grid3, .two, .cta-row { max-width:1040px; margin-left:auto; margin-right:auto; }
nav { display:flex; align-items:center; justify-content:space-between; padding:18px 20px; }
.brand { font-weight:700; font-size:18px; }
.navlinks { display:flex; gap:22px; align-items:center; }
.navlinks a { color:var(--muted); text-decoration:none; font-size:14px; }
.navlinks a:hover { color:var(--fg); }
.btn-sm { background:var(--accent); color:#fff !important; padding:8px 14px; border-radius:8px; }
.hero { text-align:center; padding:70px 20px 50px; }
.hero h1 { font-size:44px; line-height:1.1; margin:0 auto; max-width:780px; }
.lede { font-size:19px; color:var(--muted); max-width:680px; margin:20px auto 0; }
.lede strong, .lede em { color:var(--fg); }
.cta-row { display:flex; gap:14px; justify-content:center; margin-top:30px; }
.btn { display:inline-block; background:var(--accent); color:#fff; text-decoration:none; padding:13px 24px; border-radius:10px; font-weight:600; }
.btn.ghost { background:transparent; border:1px solid var(--line); color:var(--fg); }
.fineprint { color:var(--muted); font-size:13px; margin-top:18px; }
.band { padding:60px 20px; border-top:1px solid var(--line); }
.band.alt { background:#12151c; }
.band h2 { text-align:center; font-size:30px; margin:0 0 10px; }
.band .sub { text-align:center; color:var(--muted); margin:0 auto 36px; max-width:640px; }
.grid3 { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.two { display:grid; grid-template-columns:1fr 1fr; gap:24px; max-width:1040px; margin:0 auto; }
.band .card, .step, .price { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:22px; }
.band .card h3, .step h3, .price h3 { margin:0 0 10px; font-size:18px; }
.band .card p, .two p { color:var(--muted); }
.band .card em, .two strong { color:var(--fg); font-style:normal; }
.step .num { display:inline-flex; width:30px; height:30px; align-items:center; justify-content:center; border-radius:50%; background:var(--accent); color:#fff; font-weight:700; margin-bottom:8px; }
.callout { text-align:center; max-width:760px; margin:30px auto 0; font-size:18px; padding:18px; border:1px dashed var(--line); border-radius:12px; }
.two h3 { font-size:20px; }
.price { text-align:center; }
.price.featured { border-color:var(--accent); box-shadow:0 0 0 1px var(--accent) inset; }
.price .amt { font-size:34px; font-weight:700; margin:6px 0 14px; }
.price .amt span { font-size:15px; color:var(--muted); font-weight:400; }
.price ul { list-style:none; padding:0; margin:0 0 18px; color:var(--muted); font-size:14px; }
.price li { padding:6px 0; border-bottom:1px solid var(--line); }
.site-footer { max-width:900px; margin:0 auto; padding:40px 20px 60px; color:var(--muted); font-size:13px; text-align:center; border-top:1px solid var(--line); }
@media (max-width:820px){ .grid3,.two{grid-template-columns:1fr;} .hero h1{font-size:32px;} .navlinks a:not(.btn-sm){display:none;} }