:root {
  --bg: #ffffff; --bg2: #f3f5fb; --text: #141824; --dim: #5a6275; --line: #dde1ec;
  --brand: #0b2fd6; --brand-ink: #ffffff; --accent: #18c8f0;
  --code-bg: #0f1424; --code-text: #d8deea; --sel: rgba(24, 200, 240, .18);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0d1020; --bg2: #141a30; --text: #e6e9f2; --dim: #9aa3b8; --line: #252c45;
          --brand: #3456ff; --code-bg: #0a0e1b; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--sans); }
a { color: var(--brand); }
@media (prefers-color-scheme: dark) { a { color: #7f99ff; } }
code { font: .9em var(--mono); background: var(--bg2); padding: 1px 5px; border-radius: 4px; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
section { padding: 56px 0; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.12; margin: 8px 0 16px; letter-spacing: -.02em; }
h2 { font-size: 1.7rem; margin: 0 0 24px; letter-spacing: -.01em; }
h3 { font-size: 1.08rem; margin: 0 0 6px; }

/* header */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent);
       backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.brand img { border-radius: 7px; }
nav { display: flex; gap: 22px; }
nav a { color: var(--dim); text-decoration: none; font-size: .95rem; }
nav a:hover { color: var(--text); }
@media (max-width: 720px) { nav { display: none; } }

/* hero */
.hero { padding-top: 64px; background: radial-gradient(1200px 400px at 80% 0%, color-mix(in srgb, var(--accent) 14%, transparent), transparent); }
.hero-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow { color: var(--brand); font-weight: 600; margin: 0; font-size: .92rem; }
@media (prefers-color-scheme: dark) { .eyebrow { color: var(--accent); } }
.lead { color: var(--dim); font-size: 1.08rem; margin: 0 0 24px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; padding: 11px 18px; border-radius: 8px; border: 1px solid var(--line);
       color: var(--text); text-decoration: none; font-weight: 600; font-size: .95rem; background: var(--bg); }
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
.btn.primary:hover { filter: brightness(1.1); }
.note { color: var(--dim); font-size: .88rem; margin-top: 14px; }

/* the illustration */
.shot { background: var(--code-bg); border-radius: 12px; overflow: hidden; color: var(--code-text);
        box-shadow: 0 20px 50px rgba(11, 47, 214, .22); border: 1px solid #1d2540; font: 12.5px/1.65 var(--mono); }
.shot-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: #151b30; color: #8a93ab; font-size: 11.5px; }
.shot-bar i { width: 10px; height: 10px; border-radius: 50%; background: #2c3553; }
.shot-bar span { margin-left: 10px; }
.shot-body { display: grid; grid-template-columns: 150px 1fr; min-height: 210px; }
.tree { border-right: 1px solid #1d2540; padding: 10px 8px; color: #b9c1d6; white-space: nowrap; overflow: hidden; }
.tree-h { font-size: 10.5px; color: #6c7590; letter-spacing: .06em; margin-bottom: 4px; }
.tree .l1 { padding-left: 14px; } .tree .l2 { padding-left: 28px; }
.tree .on { background: #22304f; border-radius: 4px; color: #fff; }
.code { margin: 0; padding: 10px 12px; white-space: pre; overflow: hidden; font: inherit; }
.code .ln { color: #4c5673; display: inline-block; width: 2ch; text-align: right; margin-right: 10px; }
.code .k { color: #7aa2ff; } .code .n { color: #f0b46b; }
.code .sel { display: inline-block; width: 100%; background: var(--sel); box-shadow: inset 2px 0 var(--accent); }
.code .hit { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.wave { display: grid; grid-template-columns: 52px 1fr; gap: 4px 8px; padding: 10px 12px; border-top: 1px solid #1d2540; font-size: 11px; color: #8a93ab; }
.wave svg { width: 100%; height: 18px; }
.wave path { fill: none; stroke: #5fd38d; stroke-width: 1.3; vector-effect: non-scaling-stroke; }
.wave path.w2 { stroke: var(--accent); }
@media (max-width: 480px) { .shot-body { grid-template-columns: 1fr; } .tree { display: none; } }

/* features */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }
.grid article { border: 1px solid var(--line); border-radius: 10px; padding: 20px; background: var(--bg); }
.grid p { margin: 0; color: var(--dim); font-size: .95rem; }

.band { background: var(--bg2); }
.private p { max-width: 760px; color: var(--dim); font-size: 1.04rem; margin: 0; }

.steps { padding-left: 1.3em; max-width: 760px; }
.steps li { margin-bottom: 10px; padding-left: 4px; }

/* editions */
.ed { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 720px) { .ed { grid-template-columns: 1fr; } }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 24px; }
.card.pro { border-color: var(--brand); }
.card ul { padding-left: 1.2em; color: var(--dim); }
.card li { margin-bottom: 6px; }
.price { margin: 0; color: var(--dim); font-size: .92rem; }
.tag { font-size: .72rem; font-weight: 600; background: var(--brand); color: #fff; padding: 2px 8px; border-radius: 999px; vertical-align: middle; margin-left: 6px; }
.small { color: var(--dim); font-size: .9rem; margin-bottom: 0; }

/* faq */
details { border-bottom: 1px solid var(--line); padding: 14px 0; max-width: 820px; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--dim); margin: 8px 0 0; }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding: 28px 20px 40px;
        color: var(--dim); font-size: .88rem; border-top: 1px solid var(--line); }

/* plain text pages (privacy, 404) */
.page { max-width: 760px; padding-top: 48px; padding-bottom: 48px; }
.page p, .page li { color: var(--dim); }