/* Layout: one reading column; brand bar, title block, contents box, numbered sections, data table for what is collected */
:root {
  --bg: #F5F7F9;
  --surface: #FFFFFF;
  --fg: #141A20;
  --muted: #586470;
  --rule: #D9DFE5;
  --accent: #1B6884;
  --accent-soft: #E2EDF2;
  --font-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E1216; --surface: #151B21; --fg: #E4E9ED; --muted: #98A4AF;
    --rule: #26303A; --accent: #63B5D2; --accent-soft: #15303B; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0E1216; --surface: #151B21; --fg: #E4E9ED; --muted: #98A4AF;
  --rule: #26303A; --accent: #63B5D2; --accent-soft: #15303B; color-scheme: dark;
}
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 0 56px;
}
.wrap { max-width: 720px; margin: 0 auto; }
.top {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: 8px 16px; padding-block: 20px; border-bottom: 1px solid var(--rule);
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.mark { width: 28px; height: 28px; border-radius: 7px; background: var(--accent); color: var(--bg); display: grid; place-items: center; font-size: 15px; }
.kind { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.intro { padding-block: 40px 24px; }
h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(30px, 5vw, 42px); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 12px; text-wrap: balance; }
.meta { font-family: var(--font-mono); font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 20px; }
.lead { font-size: 18px; margin: 20px 0 0; max-width: 65ch; }
.toc { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 18px 20px; margin-block: 8px 28px; }
.toc h2 { font-family: var(--font-mono); font-weight: 500; font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.toc ol { list-style: none; margin: 0; padding: 0; columns: 2 250px; column-gap: 28px; }
.toc li { break-inside: avoid; padding-block: 3px; font-size: 15px; line-height: 1.4; }
.toc a { color: var(--fg); text-decoration: none; }
.toc a:hover { color: var(--accent); text-decoration: underline; }
.num { font-family: var(--font-mono); font-size: 13px; color: var(--accent); font-variant-numeric: tabular-nums; margin-right: 8px; }
.clause { padding-block: 22px; border-top: 1px solid var(--rule); scroll-margin-top: 16px; }
.clause h2 { font-family: var(--font-display); font-weight: 600; font-size: 21px; line-height: 1.3; margin: 0 0 10px; display: flex; gap: 4px; align-items: baseline; text-wrap: balance; }
.clause h2 .num { font-size: 15px; }
.clause p, .clause li { max-width: 65ch; }
.clause p { margin: 0 0 12px; }
.clause p:last-child { margin-bottom: 0; }
.clause ul { margin: 6px 0 12px; padding-left: 1.2em; }
.clause li { margin-block: 4px; }
.table-box { overflow-x: auto; margin-block: 6px 12px; border: 1px solid var(--rule); border-radius: 10px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 15px; line-height: 1.5; }
th, td { text-align: left; vertical-align: top; padding: 10px 14px; border-bottom: 1px solid var(--rule); }
tr:last-child td { border-bottom: 0; }
th { font-family: var(--font-mono); font-weight: 500; font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
td:first-child { font-weight: 600; width: 28%; }
.note { background: var(--accent-soft); border-radius: 8px; padding: 14px 16px; font-size: 16px; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
.email { font-family: var(--font-mono); font-size: 15px; color: var(--fg); user-select: all; word-break: break-all; }
.foot { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--rule); font-size: 15px; color: var(--muted); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
@media (max-width: 480px) { body { font-size: 16px; } .intro { padding-block: 28px 16px; } }

/* ---- Site additions: navigation, home page ---- */
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.brand { color: var(--fg); text-decoration: none; }
.nav, .foot-links { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 15px; }
.nav a, .foot-links a { color: var(--fg); text-decoration: none; }
.nav a:hover, .foot-links a:hover { color: var(--accent); text-decoration: underline; }
.foot-links a { color: var(--muted); }

.hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 40px; align-items: center; padding-block: 48px 40px; }
.hero h1 { font-size: clamp(32px, 5.4vw, 48px); }
.hero .lead { margin-top: 16px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 8px; font-weight: 600; font-size: 16px; text-decoration: none; border: 1px solid var(--accent); }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-ghost { color: var(--accent); background: transparent; }
.btn:hover { filter: brightness(1.08); }

/* Post composer illustration */
.composer { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 18px; display: grid; gap: 12px; box-shadow: 0 12px 32px -18px rgba(20, 26, 32, 0.35); }
.composer-head { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--accent-soft); border: 2px solid var(--accent); }
.composer-head small { display: block; color: var(--muted); font-size: 13px; }
.video-slot { aspect-ratio: 16 / 7; max-width: 100%; border-radius: 10px; background: repeating-linear-gradient(135deg, var(--accent-soft) 0 10px, transparent 10px 20px); border: 1px dashed var(--rule); display: grid; place-items: center; font-family: var(--font-mono); font-size: 12px; color: var(--muted); }
.field { border: 1px solid var(--rule); border-radius: 8px; padding: 8px 12px; font-size: 14px; color: var(--muted); }
.field b { color: var(--fg); font-weight: 600; }
.toggles { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; }
.chip { border: 1px solid var(--rule); border-radius: 999px; padding: 3px 10px; color: var(--muted); }
.status { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12px; color: var(--muted); border-top: 1px solid var(--rule); padding-top: 10px; }
.status .ok { color: var(--accent); }

.band { padding-block: 32px; border-top: 1px solid var(--rule); scroll-margin-top: 16px; }
.band > h2 { font-family: var(--font-display); font-weight: 600; font-size: 26px; line-height: 1.25; margin: 0 0 8px; text-wrap: balance; }
.band > p { max-width: 65ch; margin: 0 0 16px; color: var(--muted); }
.steps { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.steps li { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 18px; }
.steps h3, .features h3, .faq h3 { font-family: var(--font-display); font-weight: 600; font-size: 17px; line-height: 1.35; margin: 6px 0 6px; }
.steps p, .features p, .faq p { margin: 0; font-size: 16px; color: var(--muted); }
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 32px; margin-top: 16px; }
.faq { display: grid; gap: 18px; margin-top: 16px; max-width: 65ch; }
.contact-box { background: var(--accent-soft); border-radius: 10px; padding: 18px 20px; display: grid; gap: 4px; }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; gap: 28px; padding-block: 32px 28px; }
  .steps { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
}