/* ShuttleIQ public pages — the app's "Ember" palette: graphite canvas, one confident orange, Figtree. */

/* Figtree (SIL Open Font License, assets/fonts/OFL.txt), self-hosted: no third-party requests. */
@font-face { font-family: "Figtree"; font-weight: 500; font-style: normal; font-display: swap; src: url("fonts/Figtree-Medium.ttf") format("truetype"); }
@font-face { font-family: "Figtree"; font-weight: 600; font-style: normal; font-display: swap; src: url("fonts/Figtree-SemiBold.ttf") format("truetype"); }
@font-face { font-family: "Figtree"; font-weight: 700; font-style: normal; font-display: swap; src: url("fonts/Figtree-Bold.ttf") format("truetype"); }
@font-face { font-family: "Figtree"; font-weight: 800; font-style: normal; font-display: swap; src: url("fonts/Figtree-ExtraBold.ttf") format("truetype"); }
@font-face { font-family: "Figtree"; font-weight: 900; font-style: normal; font-display: swap; src: url("fonts/Figtree-Black.ttf") format("truetype"); }
:root {
  --bg: #121214;
  --surface: #1f1f22;
  --raised: #2e2e32;
  --text: #faf8f6;
  --muted: rgba(250, 248, 246, 0.66);
  --line: rgba(255, 255, 255, 0.1);
  --accent: #ff6b2c;
  --accent-soft: #ff9e6b;
  --accent-deep: #e84a16;
  --link: #ff9e6b;
  --on-accent: #121214;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #faf8f6;
    --surface: #ffffff;
    --raised: #f1ece7;
    --text: #121214;
    --muted: rgba(18, 18, 20, 0.66);
    --line: rgba(18, 18, 20, 0.1);
    --link: #c2410c;
    color-scheme: light;
  }
}

:root[data-theme="dark"] { color-scheme: dark; }

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 500 17px/1.62 "Figtree", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.wrap { width: min(100% - 32px, 760px); margin-inline: auto; }

/* Header */
.top {
  position: sticky;
  top: 0;
  z-index: 2;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 12px 20px; flex-wrap: wrap; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 900; font-size: 19px; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.top nav { display: flex; align-items: center; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.top nav a { color: var(--muted); text-decoration: none; font-weight: 700; font-size: 15px; padding: 6px 10px; border-radius: 999px; }
.top nav a:hover { color: var(--text); background: var(--raised); }
.top nav a[aria-current="page"] { color: var(--text); background: var(--raised); }
.top nav a.lang { color: var(--text); border: 1px solid var(--line); margin-left: 4px; }

/* Documents */
main { padding-block: 40px 64px; }
.eyebrow { margin: 0 0 6px; color: var(--accent); font-weight: 800; font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2, h3 { font-weight: 900; letter-spacing: -0.015em; line-height: 1.15; }
h1 { font-size: clamp(34px, 7vw, 48px); margin: 0 0 10px; }
h2 { font-size: 23px; margin: 40px 0 10px; scroll-margin-top: 80px; }
h3 { font-size: 18px; margin: 26px 0 6px; }
.meta { color: var(--muted); font-size: 15px; font-weight: 600; margin: 0 0 22px; }
.lead { font-size: 19px; color: var(--text); }
p, ul, ol { margin: 0 0 14px; }
ul, ol { padding-left: 22px; }
li { margin-bottom: 8px; }
li::marker { color: var(--accent); }
strong { font-weight: 800; }

.summary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px 22px 8px;
  margin: 26px 0 8px;
}
.summary h2 { margin-top: 0; font-size: 19px; }

.note {
  border-left: 3px solid var(--accent);
  padding: 4px 0 4px 16px;
  color: var(--muted);
}

/* FAQ */
details { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 0 20px; margin-bottom: 10px; }
details[open] { padding-bottom: 6px; }
summary { cursor: pointer; list-style: none; font-weight: 800; font-size: 17px; padding: 16px 28px 16px 0; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 12px; font-size: 24px; font-weight: 700; color: var(--accent); }
details[open] summary::after { content: "–"; }

/* Landing */
.hero { display: grid; justify-items: start; gap: 18px; padding-top: 16px; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 18px 50px -12px rgba(255, 107, 44, 0.55); }
.hero h1 { margin: 0; }
.hero p { margin: 0; max-width: 34em; color: var(--muted); font-size: 19px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin-top: 34px; }
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px;
  color: var(--text);
  text-decoration: none;
}
.card:hover { border-color: var(--accent); }
.card strong { display: block; font-size: 19px; font-weight: 900; margin-bottom: 4px; }
.card span { color: var(--muted); font-size: 15px; }
.cta {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent) 55%, var(--accent-deep));
  color: var(--on-accent);
  font-weight: 900;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 999px;
}

footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { padding-block: 22px 36px; display: flex; flex-wrap: wrap; gap: 6px 18px; }
footer a { color: var(--muted); }

@media (max-width: 520px) {
  body { font-size: 16px; }
  main { padding-block: 28px 48px; }
  .top nav { margin-left: 0; width: 100%; }
  .top nav a { padding: 6px 8px; }
  .lead, .hero p { font-size: 17px; }
}