/* CarScope site. Tokens follow docs/design-2026-11-11 (ui-kit.html, DECISIONS.md): brand teal accent,
   radii 8/12/16, spacing 4/8/12/16/24/32, system font with tabular numbers. Light and dark themes. */
:root {
  --bg: #F3F5F8; --surface: #FFFFFF; --inset: #F5F7FA; --raised: #E9EDF3; --line: #E2E7EE; --border: #C5CDD9;
  --text: #151B27; --muted: #5A667A; --accent: #0B7F7A; --accent-ink: #0A6C68; --accent-soft: rgba(11,127,122,.12);
  --on-accent: #FFFFFF; --live: #147A52; --warn: #8A5A06; --demo: #B4520E; --err: #B42335;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.08);
  --hero-glow: rgba(11,127,122,.10);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0C1019; --surface: #171C29; --inset: #121723; --raised: #262E3C; --line: #2A3242; --border: #3A4558;
    --text: #EEF2F8; --muted: #9AA6BA; --accent: #2EC9C2; --accent-ink: #6FE3DD; --accent-soft: rgba(46,201,194,.15);
    --on-accent: #04201F; --live: #57D9A3; --warn: #F5BB62; --demo: #FF9F5A; --err: #FF8C8C;
    --shadow: 0 1px 2px rgba(0,0,0,.35), 0 8px 28px rgba(0,0,0,.30);
    --hero-glow: rgba(46,201,194,.12);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0C1019; --surface: #171C29; --inset: #121723; --raised: #262E3C; --line: #2A3242; --border: #3A4558;
  --text: #EEF2F8; --muted: #9AA6BA; --accent: #2EC9C2; --accent-ink: #6FE3DD; --accent-soft: rgba(46,201,194,.15);
  --on-accent: #04201F; --live: #57D9A3; --warn: #F5BB62; --demo: #FF9F5A; --err: #FF8C8C;
  --shadow: 0 1px 2px rgba(0,0,0,.35), 0 8px 28px rgba(0,0,0,.30);
  --hero-glow: rgba(46,201,194,.12);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-ink); text-underline-offset: 2px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.2; margin: 0; }
h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 650; letter-spacing: -.02em; }
h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 650; letter-spacing: -.01em; }
h3 { font-size: 20px; font-weight: 600; }
p { margin: 0 0 12px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }
.i { width: 24px; height: 24px; flex: none; }
.i .d { fill: currentColor; fill-opacity: .2; }

/* header */
.top { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 650; font-size: 18px; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { color: var(--muted); text-decoration: none; font-size: 14px; padding: 6px 10px; border-radius: 8px; white-space: nowrap; }
.nav a:hover { color: var(--text); background: var(--raised); }
.tools { display: flex; gap: 8px; align-items: center; }
.pill { height: 32px; min-width: 32px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 0 10px;
  border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--text); font: 600 13px/1 inherit;
  font-family: inherit; text-decoration: none; cursor: pointer; }
.pill:hover { border-color: var(--border); color: var(--text); }
.pill svg { width: 18px; height: 18px; }
.menu-btn { display: none; }
/* ten nav links + logo + tools need ~1200px (RU is wider); collapse into the menu below that */
@media (max-width: 1240px) {
  .nav { display: none; position: absolute; top: 60px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: var(--surface); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav a { padding: 10px 8px; font-size: 16px; }
  .menu-btn { display: inline-flex; }
  .tools { margin-left: auto; }
}

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 18px; border-radius: 8px; font: 600 15px/1 inherit;
  font-family: inherit; text-decoration: none; border: 1px solid transparent; cursor: pointer; }
.btn.primary { background: var(--accent); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.06); color: var(--on-accent); }
.btn.secondary { background: var(--surface); color: var(--text); border-color: var(--line); }
.btn.secondary:hover { border-color: var(--border); }
.btn[aria-disabled="true"] { opacity: .6; cursor: default; pointer-events: none; }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 10px; border-radius: 12px; font: 600 11px/1 inherit;
  font-family: inherit; letter-spacing: .04em; text-transform: uppercase; background: var(--accent-soft); color: var(--accent-ink); white-space: nowrap; }
.chip.beta { background: color-mix(in srgb, var(--demo) 16%, transparent); color: var(--demo); }
.chip.soon { background: var(--raised); color: var(--muted); }

/* hero */
.hero { position: relative; overflow: hidden; padding: 56px 0 40px; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto; height: 520px; background: radial-gradient(closest-side, var(--hero-glow), transparent); pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; }
.hero .lead { font-size: 19px; color: var(--muted); margin: 16px 0 24px; max-width: 560px; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.platforms { display: flex; flex-wrap: wrap; gap: 8px; }
.platforms span { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); border: 1px solid var(--line);
  border-radius: 16px; padding: 4px 10px; background: var(--surface); }
.hero-shot { position: relative; padding-bottom: 6%; }
.hero-shot .desk { border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.hero-shot .phone { position: absolute; right: -2%; bottom: 0; width: 26%; }
@media (max-width: 900px) {
  .hero { padding-top: 32px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 28px; }
}

/* device frames */
.phone { border-radius: 22px; border: 3px solid #2A3242; background: #000; box-shadow: var(--shadow); overflow: hidden; }
.phone img { width: 100%; }
.tablet { border-radius: 18px; border: 3px solid #2A3242; background: #000; box-shadow: var(--shadow); overflow: hidden; }
.headunit { border-radius: 10px; border: 6px solid #1B2130; background: #000; box-shadow: var(--shadow); overflow: hidden; }
.desk { border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden; background: var(--surface); }

/* sections */
section { padding: 64px 0; }
section.alt { background: var(--inset); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: 32px; }
.section-head .eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-ink); font-weight: 600; font-size: 14px; margin-bottom: 10px; }
.section-head p { color: var(--muted); font-size: 18px; margin-top: 12px; }
.feature { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; margin: 40px 0; }
.feature.flip > :first-child { order: 2; }
.feature ul { padding-left: 20px; margin: 8px 0 0; }
.feature li { margin: 6px 0; }
.feature h3 { margin-bottom: 10px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.shots { display: grid; gap: 16px; align-items: end; }
.shots.two { grid-template-columns: 1fr 1fr; }
.shots.phones { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.shots.desk-phone { grid-template-columns: minmax(0, 3fr) minmax(0, 1fr); }
figure { margin: 0; }
figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }
@media (max-width: 900px) {
  section { padding: 44px 0; }
  .feature, .feature.flip { grid-template-columns: 1fr; gap: 20px; }
  .feature.flip > :first-child { order: 0; }
}
@media (max-width: 520px) {
  .shots.phones { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .shots.two.stack { grid-template-columns: 1fr; }
  .shots.desk-phone { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 8px; }
  .phone { border-radius: 14px; border-width: 2px; }
}

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card h3 { font-size: 17px; margin: 10px 0 6px; }
.card p { color: var(--muted); font-size: 15px; margin: 0; }
.card .i { color: var(--accent); width: 28px; height: 28px; }
.card .i .d { fill: var(--accent); fill-opacity: .3; }

/* table */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: 15px; min-width: 560px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td.y { color: var(--live); font-weight: 600; }
td.n { color: var(--muted); }

/* FAQ */
details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 0 18px; margin: 10px 0; }
summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 20px; line-height: 1; }
details[open] summary::after { content: "−"; }
details > div { padding: 0 0 16px; color: var(--muted); }

/* download */
.dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.dl .card { display: flex; flex-direction: column; gap: 10px; }
.dl .card .btn { margin-top: auto; justify-content: center; }
.note { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 20px 0; }

/* prose pages (privacy, support) */
.prose { max-width: 780px; padding: 40px 16px 64px; margin: 0 auto; }
.prose h1 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 12px; }
.prose h2 { font-size: 22px; margin: 36px 0 10px; }
.prose ul { padding-left: 20px; }
.prose li { margin: 6px 0; }
.draft { border: 1px solid color-mix(in srgb, var(--demo) 40%, transparent); background: color-mix(in srgb, var(--demo) 10%, transparent);
  color: var(--text); padding: 12px 16px; border-radius: 12px; margin: 16px 0 24px; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a { color: var(--muted); }

/* devices diagram: car + adapter -> any device; stacked on narrow screens */
.diagram-wrap { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.dg-row { display: flex; align-items: center; gap: 14px; }
.dg-step { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; height: 100%; box-sizing: border-box;
  background: var(--inset); border: 1px solid var(--border); border-radius: 12px; padding: 18px 14px; }
.dg-src { flex: 0 0 200px; }
.dg-dev { background: var(--accent-soft); border-color: var(--accent); }
.dg-step .i { width: 36px; height: 36px; color: var(--accent); }
.dg-step .i .d { fill: var(--accent); fill-opacity: .3; }
.dg-step b { font-size: 17px; color: var(--text); }
.dg-step span { font-size: 14px; color: var(--muted); }
.dg-any { flex: 1 1 0; min-width: 0; }
.dg-any-label { margin: 0 0 8px; font-size: 14px; font-weight: 600; color: var(--muted); }
.dg-devices { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.dg-arrow { flex: none; width: 28px; height: 2px; background: var(--accent); position: relative; }
.dg-arrow::after { content: ""; position: absolute; right: -2px; top: -5px; border: 6px solid transparent;
  border-left: 8px solid var(--accent); border-right: 0; }
.dg-note { margin: 16px 0 0; text-align: center; color: var(--text); font-size: 15px; }
@media (max-width: 860px) {
  .diagram-wrap { padding: 16px; }
  .dg-row { flex-direction: column; align-items: stretch; }
  .dg-src { flex: none; }
  .dg-arrow { width: 2px; height: 22px; align-self: center; }
  .dg-arrow::after { right: auto; left: -5px; top: auto; bottom: -2px; border: 6px solid transparent;
    border-top: 8px solid var(--accent); border-bottom: 0; }
  .dg-any-label { text-align: center; }
  .dg-devices { grid-template-columns: 1fr; }
}
.flow { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-top: 20px; }