:root {
  --bg:#f6f7fb; --bg2:#eef0f8; --surface:#ffffff; --border:#e2e5f1; --text:#0d1230; --muted:#59628a;
  --accent:#4f46e5; --accent2:#0891b2; --glow1:rgba(79,70,229,.18); --glow2:rgba(8,145,178,.16);
  --code:#0f1530; --codefg:#dbe2ff; --shadow:0 10px 30px -12px rgba(30,40,110,.25); --radius:16px;
}
:root[data-theme="dark"] {
  --bg:#080c1c; --bg2:#0d1226; --surface:#111833; --border:rgba(255,255,255,.09); --text:#e8ebfa; --muted:#9aa4cc;
  --accent:#818cf8; --accent2:#22d3ee; --glow1:rgba(99,102,241,.28); --glow2:rgba(34,211,238,.18);
  --code:#0a0f24; --codefg:#dbe2ff; --shadow:0 18px 40px -18px rgba(0,0,0,.7);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:#080c1c; --bg2:#0d1226; --surface:#111833; --border:rgba(255,255,255,.09); --text:#e8ebfa; --muted:#9aa4cc;
    --accent:#818cf8; --accent2:#22d3ee; --glow1:rgba(99,102,241,.28); --glow2:rgba(34,211,238,.18);
    --code:#0a0f24; --codefg:#dbe2ff; --shadow:0 18px 40px -18px rgba(0,0,0,.7);
  }
}
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:84px; }
body { margin:0; overflow-x:hidden; background:var(--bg); color:var(--text); font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif; -webkit-font-smoothing:antialiased; }
a { color:var(--accent); text-decoration:none; } a:hover { text-decoration:underline; }
img, svg { max-width:100%; }
.wrap { max-width:1120px; margin:0 auto; padding:0 20px; }
:focus-visible { outline:2px solid var(--accent2); outline-offset:3px; border-radius:6px; }

/* header */
.site-header { position:sticky; top:0; z-index:30; backdrop-filter:saturate(1.4) blur(14px); background:color-mix(in srgb, var(--bg) 78%, transparent); border-bottom:1px solid var(--border); }
.nav { display:flex; align-items:center; gap:20px; height:64px; }
.brand { display:flex; align-items:center; gap:10px; font-weight:700; color:var(--text); letter-spacing:-.01em; }
.brand:hover { text-decoration:none; } .brand img { width:30px; height:30px; border-radius:8px; }
.nav-links { display:flex; gap:22px; margin-left:auto; align-items:center; }
.nav-links a { color:var(--muted); font-size:.95rem; font-weight:500; } .nav-links a:hover { color:var(--text); text-decoration:none; }
.icon-btn { background:transparent; border:1px solid var(--border); color:var(--text); width:38px; height:38px; border-radius:10px; cursor:pointer; display:grid; place-items:center; }
.icon-btn:hover { border-color:var(--accent); }
.menu-btn { display:none; }
@media (max-width:760px) {
  .menu-btn { display:grid; margin-left:auto; }
  .nav-links { display:none; position:absolute; top:64px; left:0; right:0; flex-direction:column; align-items:flex-start; gap:0; margin:0; padding:8px 20px 16px; background:var(--bg); border-bottom:1px solid var(--border); }
  .nav-links.open { display:flex; } .nav-links a { padding:10px 0; width:100%; }
}

/* hero */
.hero { position:relative; overflow:hidden; padding:84px 0 56px; }
.hero::before { content:""; position:absolute; inset:-20% -10% auto -10%; height:620px; background:radial-gradient(520px 320px at 20% 20%, var(--glow1), transparent 70%), radial-gradient(520px 320px at 85% 10%, var(--glow2), transparent 70%); pointer-events:none; }
.hero::after { content:""; position:absolute; inset:0 0 auto 0; height:520px; background-image:linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px); background-size:56px 56px; mask-image:radial-gradient(ellipse at 50% 0%, #000 0%, transparent 65%); -webkit-mask-image:radial-gradient(ellipse at 50% 0%, #000 0%, transparent 65%); opacity:.55; pointer-events:none; }
.hero .wrap { position:relative; z-index:1; }
.eyebrow { display:inline-flex; align-items:center; gap:8px; font-size:.82rem; font-weight:600; letter-spacing:.04em; text-transform:uppercase; color:var(--accent); background:color-mix(in srgb, var(--accent) 12%, transparent); border:1px solid color-mix(in srgb, var(--accent) 30%, transparent); padding:6px 12px; border-radius:999px; }
h1 { font-size:clamp(2.2rem, 5.2vw, 3.8rem); line-height:1.08; letter-spacing:-.03em; margin:18px 0 16px; max-width:15ch; overflow-wrap:anywhere; }
.grad { background:linear-gradient(90deg, var(--accent), var(--accent2)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.lead { font-size:1.2rem; color:var(--muted); max-width:62ch; margin:0 0 28px; }
.cta-row { display:flex; gap:12px; flex-wrap:wrap; }
.btn { display:inline-flex; align-items:center; gap:8px; padding:13px 20px; border-radius:12px; font-weight:600; border:1px solid var(--border); color:var(--text); background:var(--surface); cursor:pointer; font-size:1rem; }
.btn:hover { text-decoration:none; border-color:var(--accent); transform:translateY(-1px); }
.btn.primary { background:linear-gradient(90deg, var(--accent), var(--accent2)); color:#fff; border-color:transparent; box-shadow:0 10px 24px -10px var(--accent); }
.stats { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:44px; }
.stat { background:color-mix(in srgb, var(--surface) 82%, transparent); border:1px solid var(--border); border-radius:var(--radius); padding:18px 20px; }
.stat b { display:block; font-size:1.7rem; letter-spacing:-.02em; } .stat span { color:var(--muted); font-size:.92rem; }
@media (max-width:760px) { .stats { grid-template-columns:repeat(2,1fr); } .hero { padding-top:56px; } }

/* sections */
section { padding:64px 0; }
section.alt { background:var(--bg2); border-block:1px solid var(--border); }
.sec-head { max-width:720px; margin-bottom:30px; }
.sec-head h2 { font-size:clamp(1.6rem,3vw,2.2rem); letter-spacing:-.02em; margin:0 0 10px; line-height:1.15; }
.sec-head p { margin:0; color:var(--muted); font-size:1.05rem; }
.grid { display:grid; gap:16px; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); }
.grid.two { grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); }
.card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px; box-shadow:var(--shadow); transition:transform .18s, border-color .18s; color:var(--text); display:flex; flex-direction:column; gap:8px; }
a.card:hover { transform:translateY(-3px); border-color:var(--accent); text-decoration:none; }
.card h3 { margin:0; font-size:1.02rem; line-height:1.3; letter-spacing:-.01em; }
.card p { margin:0; color:var(--muted); font-size:.93rem; flex:1; }
.card .meta { display:flex; flex-wrap:wrap; justify-content:space-between; align-items:center; gap:6px 10px; margin-top:6px; }
.tag { white-space:nowrap; }
.tag { font-size:.74rem; font-weight:600; color:var(--muted); border:1px solid var(--border); padding:3px 9px; border-radius:999px; }
.price { font-size:.82rem; font-weight:700; color:var(--accent2); }
.ico { width:42px; height:42px; border-radius:12px; display:grid; place-items:center; background:linear-gradient(135deg, color-mix(in srgb, var(--accent) 22%, transparent), color-mix(in srgb, var(--accent2) 22%, transparent)); color:var(--accent); margin-bottom:6px; }
.ico svg { width:22px; height:22px; stroke:currentColor; fill:none; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round; }

/* tool filters */
.filters { display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-bottom:22px; }
.chip { border:1px solid var(--border); background:var(--surface); color:var(--text); padding:8px 14px; border-radius:999px; cursor:pointer; font-size:.9rem; font-weight:500; }
.chip[aria-pressed="true"] { background:linear-gradient(90deg, var(--accent), var(--accent2)); color:#fff; border-color:transparent; }
.search { margin-left:auto; flex:1 1 220px; max-width:320px; padding:10px 14px; border-radius:12px; border:1px solid var(--border); background:var(--surface); color:var(--text); font-size:.95rem; }
.empty { display:none; color:var(--muted); padding:20px 0; } .empty.show { display:block; }

/* code */
.code { background:var(--code); color:var(--codefg); border-radius:14px; border:1px solid var(--border); overflow:hidden; box-shadow:var(--shadow); }
.code-top { display:flex; align-items:center; justify-content:space-between; padding:8px 8px 8px 16px; border-bottom:1px solid rgba(255,255,255,.08); font-size:.82rem; color:#8f9bd1; }
.code pre { margin:0; padding:16px; overflow-x:auto; font:13.5px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
.copy { background:rgba(255,255,255,.08); color:#dbe2ff; border:1px solid rgba(255,255,255,.14); border-radius:8px; padding:5px 11px; cursor:pointer; font-size:.8rem; }
.copy:hover { background:rgba(255,255,255,.16); }
.tabs { display:flex; gap:6px; margin-bottom:12px; flex-wrap:wrap; }
.tab { border:1px solid var(--border); background:var(--surface); color:var(--muted); padding:7px 13px; border-radius:10px; cursor:pointer; font-size:.88rem; font-weight:600; }
.tab[aria-selected="true"] { color:var(--text); border-color:var(--accent); }
.panel[hidden] { display:none; }
.split { display:grid; grid-template-columns:minmax(0,1.05fr) minmax(0,1fr); gap:36px; align-items:center; }
@media (max-width:860px) { .split { grid-template-columns:minmax(0,1fr); } }
.code { min-width:0; }
.hero-grid { display:grid; grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr); gap:44px; align-items:center; }
@media (max-width:900px) { .hero-grid { grid-template-columns:minmax(0,1fr); } }
.hero-visual .caption { margin:10px 4px 0; color:var(--muted); font-size:.88rem; }
.pill { display:inline-block; }
a.pill:hover { text-decoration:none; border-color:var(--accent); }
.pills { display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.pill { font:600 .78rem ui-monospace,Menlo,monospace; color:var(--accent); background:color-mix(in srgb, var(--accent) 10%, transparent); border:1px solid color-mix(in srgb, var(--accent) 24%, transparent); padding:4px 10px; border-radius:8px; }

/* steps, table, faq */
.steps { counter-reset:s; display:grid; gap:16px; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); }
.step { counter-increment:s; position:relative; padding-left:54px; } .step::before { content:counter(s); position:absolute; left:0; top:0; width:38px; height:38px; border-radius:12px; display:grid; place-items:center; font-weight:700; color:#fff; background:linear-gradient(135deg, var(--accent), var(--accent2)); }
.step h3 { margin:0 0 4px; font-size:1.02rem; } .step p { margin:0; color:var(--muted); font-size:.94rem; }
table { width:100%; border-collapse:collapse; font-size:.93rem; } th, td { text-align:left; padding:11px 12px; border-bottom:1px solid var(--border); vertical-align:top; } th { color:var(--muted); font-weight:600; font-size:.82rem; text-transform:uppercase; letter-spacing:.04em; }
.table-wrap { overflow-x:auto; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); }
td code { font:600 .85rem ui-monospace,Menlo,monospace; color:var(--accent); }
details { background:var(--surface); border:1px solid var(--border); border-radius:12px; padding:14px 18px; margin-bottom:10px; } summary { cursor:pointer; font-weight:600; } details p { color:var(--muted); margin:10px 0 0; }
.cta-band { background:linear-gradient(120deg, color-mix(in srgb, var(--accent) 16%, var(--surface)), color-mix(in srgb, var(--accent2) 14%, var(--surface))); border:1px solid var(--border); border-radius:24px; padding:40px; display:flex; gap:24px; align-items:center; justify-content:space-between; flex-wrap:wrap; }
.cta-band h2 { margin:0 0 6px; font-size:1.7rem; letter-spacing:-.02em; } .cta-band p { margin:0; color:var(--muted); max-width:52ch; }
.badges { display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; } .badges img { height:20px; }

/* footer */
footer { padding:40px 0 56px; border-top:1px solid var(--border); color:var(--muted); font-size:.92rem; }
.foot { display:flex; flex-wrap:wrap; gap:24px; justify-content:space-between; }
.foot a { color:var(--muted); } .foot a:hover { color:var(--text); }
.foot ul { list-style:none; margin:0; padding:0; display:grid; gap:6px; }
.fine { margin-top:22px; font-size:.85rem; max-width:80ch; }

/* motion */
.js .reveal { opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease; } .js .reveal.in { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce) { * { transition:none !important; scroll-behavior:auto !important; } .reveal { opacity:1; transform:none; } }

[hidden] { display:none !important; }