:root {
  --bg: #ffffff; --bg2: #f4f6f7; --card: #ffffff; --fg: #17191a; --muted: #5d676c; --line: #e2e7ea;
  --accent: #ff6d00; --accent-ink: #ffffff; --accent-soft: #fff1e6; --warn: #8a4b00; --warn-bg: #fff6e0; --warn-line: #f3d18a;
  --green: #2e7d32; --red: #c62828; --amber: #f9a825; --blue: #1565c0;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111416; --bg2: #171b1e; --card: #1b2023; --fg: #e9ecee; --muted: #9aa8af; --line: #2a3237;
    --accent-soft: #2b1c10; --warn: #f3c46b; --warn-bg: #2a2212; --warn-line: #5c4a1e;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.25);
  }
}
:root[data-theme="dark"] {
  --bg: #111416; --bg2: #171b1e; --card: #1b2023; --fg: #e9ecee; --muted: #9aa8af; --line: #2a3237;
  --accent-soft: #2b1c10; --warn: #f3c46b; --warn-bg: #2a2212; --warn-line: #5c4a1e;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 16px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .88em; }
code { background: var(--bg2); border: 1px solid var(--line); border-radius: 5px; padding: .05em .35em; }
pre { background: var(--bg2); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; overflow-x: auto; line-height: 1.5; margin: 12px 0; }
pre code { background: none; border: 0; padding: 0; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
/* Grid items default to min-width:auto, so a long code line would widen the whole page on phones. */
.hero-grid > *, .split > *, .stack > *, .cols2 > *, .grid > *, ol.steps > li, .banner > * { min-width: 0; }
pre { max-width: 100%; }
img { max-width: 100%; }
section { padding: 56px 0; border-top: 1px solid var(--line); }
h1, h2, h3 { line-height: 1.2; margin: 0; }
h2 { font-size: clamp(24px, 3.2vw, 32px); letter-spacing: -.01em; margin-bottom: 8px; }
h3 { font-size: 17px; margin-bottom: 6px; }
.lead { color: var(--muted); font-size: 18px; max-width: 760px; margin: 0 0 28px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }

/* nav */
nav { position: sticky; top: 0; z-index: 10; background: var(--bg); background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
nav .wrap { display: flex; align-items: center; gap: 18px; height: 56px; }
nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--fg); white-space: nowrap; }
nav .brand img { width: 28px; height: 28px; border-radius: 7px; }
nav .brand { flex-shrink: 0; }
nav .links { display: flex; gap: 16px; margin-left: auto; min-width: 0; font-size: 15px; overflow-x: auto; scrollbar-width: none; }
nav .links a { color: var(--muted); white-space: nowrap; }
nav .links a:hover { color: var(--fg); text-decoration: none; }
@media (max-width: 720px) { nav .links a.opt { display: none; } }

/* hero */
.hero { padding: 64px 0 48px; border: 0; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }
.pill { display: inline-flex; align-items: center; gap: 8px; background: var(--warn-bg); color: var(--warn); border: 1px solid var(--warn-line); border-radius: 999px; padding: 4px 12px; font-size: 14px; font-weight: 600; }
.pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
.hero h1 { font-size: clamp(36px, 5.6vw, 58px); letter-spacing: -.025em; margin: 18px 0 14px; }
.hero h1 span { color: var(--accent); }
.hero p { font-size: 19px; color: var(--muted); margin: 0 0 26px; max-width: 600px; }
.buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 10px; font-weight: 600; border: 1px solid var(--line); color: var(--fg); background: var(--card); }
.btn:hover { text-decoration: none; border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.05); }
.btn svg { width: 18px; height: 18px; }

/* Karoo mock */
.karoo { width: 100%; max-width: 330px; margin: 0 auto; background: #0d0f10; border-radius: 34px; padding: 18px 14px 26px; box-shadow: 0 20px 50px rgba(0,0,0,.28); }
.screen { background: #f2f3f3; border-radius: 12px; overflow: hidden; color: #111; font-family: Roboto, system-ui, sans-serif; }
.statusbar { background: #000; color: #fff; font-size: 11px; display: flex; justify-content: space-between; padding: 4px 10px; }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: #c9cdcf; }
.tile { background: #fff; padding: 8px 10px 9px; min-height: 66px; }
.tile.wide { grid-column: span 2; }
.tile .k { font-size: 10px; letter-spacing: .06em; color: #555; text-transform: uppercase; }
.tile .v { font-size: 27px; font-weight: 700; line-height: 1.15; }
.tile .v small { font-size: 14px; font-weight: 600; color: #444; }
.quad { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; }
.quad .v { font-size: 22px; }
.coach { background: var(--green); color: #fff; text-align: center; padding: 10px 6px 12px; }
.coach .v { font-size: 30px; letter-spacing: .02em; }
.coach .h { font-size: 12px; opacity: .92; }
.alert { margin: 8px; background: var(--accent); color: #fff; border-radius: 8px; padding: 9px 12px; font-size: 13px; box-shadow: 0 4px 12px rgba(0,0,0,.2); }
.alert b { display: block; font-size: 15px; }
.caption { text-align: center; color: var(--muted); font-size: 13px; margin-top: 12px; }

/* testing banner */
.banner { background: var(--warn-bg); border: 1px solid var(--warn-line); border-radius: 14px; padding: 20px 22px; display: grid; grid-template-columns: auto 1fr; gap: 16px; }
.banner .icon { font-size: 26px; line-height: 1; }
.banner h3 { color: var(--warn); }
.banner p { margin: 6px 0 0; }
.cols2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 12px; }
@media (max-width: 700px) { .cols2 { grid-template-columns: 1fr; } .banner { grid-template-columns: 1fr; } }
ul.check, ul.todo { list-style: none; padding: 0; margin: 6px 0 0; }
ul.check li, ul.todo li { padding-left: 24px; position: relative; margin: 5px 0; font-size: 15px; }
ul.check li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }
ul.todo li::before { content: "○"; position: absolute; left: 0; color: var(--warn); font-weight: 700; }

/* features */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; box-shadow: var(--shadow); }
.card .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 10px; font-size: 20px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--accent); margin-left: 6px; vertical-align: 2px; }

/* shots */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 760px) { .shots { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; } }
.shot { margin: 0; }
.shot img { width: 100%; height: auto; border-radius: 18px; border: 8px solid #0d0f10; box-shadow: var(--shadow); display: block; }
.shot figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; text-align: center; }

/* ride report */
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.phone { background: var(--bg2); border: 1px solid var(--line); border-radius: 20px; padding: 14px; }
.notif { background: var(--card); border-radius: 14px; padding: 14px 16px; box-shadow: var(--shadow); font-size: 14px; line-height: 1.5; }
.notif .app { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12.5px; margin-bottom: 6px; }
.notif .app img { width: 18px; height: 18px; border-radius: 5px; }
.notif .title { font-weight: 700; margin-bottom: 6px; }
.notif p { margin: 0 0 8px; }
.notif p:last-child { margin: 0; color: var(--muted); }
.preview { display: block; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.preview img { width: 100%; height: auto; display: block; }
.preview:hover { text-decoration: none; border-color: var(--accent); }
.preview .bar { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: var(--card); color: var(--fg); font-weight: 600; font-size: 15px; border-top: 1px solid var(--line); }
.preview .bar span { color: var(--accent); }
.stack { display: grid; gap: 18px; }

/* tables */
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--card); }
.table-wrap table td:first-child { font-weight: 600; white-space: nowrap; }

/* steps */
ol.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
ol.steps > li { counter-increment: s; position: relative; padding: 16px 18px 16px 62px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
ol.steps > li::before { content: counter(s); position: absolute; left: 18px; top: 16px; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; }
ol.steps h3 { margin-bottom: 4px; }
ol.steps p { margin: 4px 0 0; color: var(--muted); }

footer { border-top: 1px solid var(--line); padding: 34px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
.theme-toggle { background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 8px; padding: 5px 9px; cursor: pointer; font: inherit; font-size: 13px; }