:root {
  --bg: #05070f; --surface: #0f1426; --card: #141a30; --stroke: #262f4d;
  --text: #f2f5ff; --text-2: #c5cde5; --text-3: #8f99b8;
  --accent: #3e91ff; --accent-soft: #7db6ff; --accent-bg: rgba(62, 145, 255, 0.13);
  --brand: #2447d6; --ok: #3ddc97;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fd; --surface: #ffffff; --card: #ffffff; --stroke: #dde3f2;
    --text: #0a0d18; --text-2: #3f4760; --text-3: #5f6885;
    --accent: #1428a0; --accent-soft: #2447d6; --accent-bg: rgba(20, 40, 160, 0.07);
    --brand: #1428a0; --ok: #16955f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-soft); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }
.narrow .wrap { max-width: 860px; }
header { border-bottom: 1px solid var(--stroke); background: radial-gradient(700px 380px at 100% 0%, var(--accent-bg), transparent 70%); }
header .wrap { padding-top: 40px; padding-bottom: 44px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 9px; display: block; }
h1 { font-size: clamp(34px, 7vw, 56px); line-height: 1.05; letter-spacing: -1.2px; margin: 26px 0 14px; max-width: 18ch; }
.narrow h1 { font-size: clamp(30px, 6vw, 46px); max-width: none; letter-spacing: -0.6px; margin-top: 20px; }
h1 .dot { color: var(--accent); }
.lead { font-size: 19px; color: var(--text-2); margin: 0; max-width: 46ch; }
.narrow .lead { font-size: 18.5px; max-width: none; }
.meta { margin-top: 14px; color: var(--text-3); font-size: 14px; }
.ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.cta { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 600; padding: 12px 20px; border-radius: 999px; }
.cta.primary { background: var(--brand); color: #fff; }
a.cta.primary:hover { color: #fff; filter: brightness(1.08); }
.cta.ghost { border: 1px solid var(--stroke); color: var(--text); background: var(--surface); }
.cta.ghost:hover { color: var(--text); border-color: var(--accent-soft); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; padding: 0; list-style: none; }
.chips li { margin: 0; font-size: 14px; color: var(--text-2); border: 1px solid var(--stroke); border-radius: 999px; padding: 5px 12px; background: var(--surface); }
.chips li::before { content: "\25CF"; color: var(--ok); font-size: 9px; vertical-align: 2px; margin-right: 7px; }
.shots { display: grid; grid-template-columns: repeat(7, 62%); gap: 14px; margin: 36px 0 0; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
.shots img { width: 100%; height: auto; border-radius: 18px; border: 1px solid var(--stroke); display: block; scroll-snap-align: start; }
@media (min-width: 721px) { .shots { grid-template-columns: repeat(7, 1fr); overflow: visible; padding-bottom: 0; } }
main .wrap { padding-top: 8px; padding-bottom: 64px; }
h2 { font-size: clamp(24px, 4vw, 30px); letter-spacing: -0.4px; line-height: 1.15; margin: 52px 0 14px; scroll-margin-top: 16px; }
.narrow h2 { font-size: 23px; letter-spacing: -0.2px; margin-top: 40px; }
h2 .n { color: var(--accent-soft); margin-right: 8px; }
p, li { color: var(--text-2); }
strong { color: var(--text); }
ol, ul { padding-left: 22px; }
li { margin: 5px 0; }
code { background: var(--surface); border: 1px solid var(--stroke); border-radius: 6px; padding: 1px 6px; font-size: 0.92em; overflow-wrap: anywhere; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; gap: 10px; }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--stroke); border-radius: 16px; padding: 14px 16px 14px 56px; position: relative; margin: 0; }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 14px; width: 28px; height: 28px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 15px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.card { background: var(--card); border: 1px solid var(--stroke); border-radius: 18px; padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 17.5px; color: var(--text); }
.card p { margin: 0; font-size: 15.5px; }
.table { overflow-x: auto; margin: 12px 0; border: 1px solid var(--stroke); border-radius: 14px; }
table { border-collapse: collapse; width: 100%; font-size: 15.5px; }
table.wide { min-width: 560px; }
th, td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--stroke); }
th { background: var(--surface); color: var(--text); font-weight: 600; }
tbody th { white-space: nowrap; }
tr:last-child td, tr:last-child th { border-bottom: 0; }
td { color: var(--text-2); }
details { background: var(--card); border: 1px solid var(--stroke); border-radius: 16px; margin: 10px 0; }
summary { cursor: pointer; padding: 14px 40px 14px 16px; font-weight: 600; color: var(--text); list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 16px; top: 12px; color: var(--accent-soft); font-size: 20px; }
details[open] summary::after { content: "\2212"; }
details p { margin: 0; padding: 0 16px 16px; }
details ul { margin: 0; padding: 0 16px 14px 38px; }
.note { background: var(--accent-bg); border-left: 3px solid var(--accent); border-radius: 0 10px 10px 0; padding: 12px 14px; margin: 14px 0; color: var(--text); }
.toc { background: var(--surface); border: 1px solid var(--stroke); border-radius: 16px; padding: 14px 18px; margin: 24px 0 8px; font-size: 15px; }
.toc ol { margin: 6px 0 0; padding-left: 20px; columns: 2 220px; column-gap: 28px; }
.toc li { margin: 2px 0; break-inside: avoid; }
.glance { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; margin: 28px 0 4px; }
.chip { background: var(--card); border: 1px solid var(--stroke); border-radius: 16px; padding: 14px 16px; }
.chip strong { display: block; font-size: 15.5px; }
.chip strong::before { content: "\2713\00a0"; color: var(--ok); font-weight: 800; }
.chip span { display: block; margin-top: 3px; color: var(--text-2); font-size: 14.5px; line-height: 1.5; }
footer { border-top: 1px solid var(--stroke); color: var(--text-3); font-size: 14px; }
footer .wrap { padding-top: 22px; padding-bottom: 40px; }
footer p { color: var(--text-3); margin: 6px 0; }
footer nav a { margin-right: 16px; }