/* LapDuel website. Plain CSS, no build step, no external requests.
   Colours follow branding/README.md: driver A blue, driver B red (neon on dark, flat on light). */

@font-face {
  font-family: "Saira";
  src: url("fonts/Saira-Latin.woff") format("woff");
  font-weight: 100 900;
  font-stretch: 50% 125%;
  font-display: swap;
}
@font-face {
  font-family: "Russo One";
  src: url("fonts/RussoOne-Regular.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --bg-2: #ffffff;
  --bg-3: #eceef2;
  --line: #dde1e7;
  --text: #121418;
  --text-2: #4d535c;
  --text-3: #6b6e73;
  --a: #2a78d6;
  --b: #e0263a;
  --a-soft: rgba(42, 120, 214, .10);
  --b-soft: rgba(224, 38, 58, .09);
  --btn: #121418;
  --btn-text: #ffffff;
  --shadow: 0 1px 2px rgba(16, 20, 26, .06), 0 8px 28px rgba(16, 20, 26, .08);
  --glow-a: none;
  --glow-b: none;
  --hero-bg: radial-gradient(1200px 520px at 50% -10%, #e7eefa 0%, var(--bg) 70%);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0a0b0d;
    --bg-2: #13161b;
    --bg-3: #1a1e25;
    --line: #262b33;
    --text: #eef0f3;
    --text-2: #b3b9c1;
    --text-3: #8b929b;
    --a: #3d9bff;
    --b: #ff3b4e;
    --a-soft: rgba(61, 155, 255, .12);
    --b-soft: rgba(255, 59, 78, .11);
    --btn: #eef0f3;
    --btn-text: #0a0b0d;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 40px rgba(0, 0, 0, .45);
    --glow-a: 0 0 18px rgba(61, 155, 255, .55);
    --glow-b: 0 0 18px rgba(255, 59, 78, .5);
    --hero-bg: radial-gradient(1200px 560px at 50% -10%, #18202a 0%, #0a0b0d 70%);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0b0d;
  --bg-2: #13161b;
  --bg-3: #1a1e25;
  --line: #262b33;
  --text: #eef0f3;
  --text-2: #b3b9c1;
  --text-3: #8b929b;
  --a: #3d9bff;
  --b: #ff3b4e;
  --a-soft: rgba(61, 155, 255, .12);
  --b-soft: rgba(255, 59, 78, .11);
  --btn: #eef0f3;
  --btn-text: #0a0b0d;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 40px rgba(0, 0, 0, .45);
  --glow-a: 0 0 18px rgba(61, 155, 255, .55);
  --glow-b: 0 0 18px rgba(255, 59, 78, .5);
  --hero-bg: radial-gradient(1200px 560px at 50% -10%, #18202a 0%, #0a0b0d 70%);
}

/* Pictures in two versions: hide the one that doesn't match the theme. Only hiding rules, marked
   !important, so layout rules such as `.frame img { display: block }` can't bring the other one back. */
@media not (prefers-color-scheme: dark) {
  :root:not([data-theme="dark"]) .on-dark { display: none !important; }
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .on-light { display: none !important; }
}
:root[data-theme="light"] .on-dark { display: none !important; }
:root[data-theme="dark"] .on-light { display: none !important; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.6 "Saira", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-stretch: 104%;
}
img { max-width: 100%; height: auto; }
a { color: var(--a); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1, h2 { font-family: "Russo One", "Saira", sans-serif; font-weight: 400; }
h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: 1.2rem; font-weight: 650; }
p { margin: 0 0 1em; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.muted { color: var(--text-2); }
.small { font-size: .9rem; color: var(--text-3); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; z-index: 10; background: var(--bg-2); padding: 8px 12px; border-radius: 8px; }

/* ---- Header ---------------------------------------------------------------------------------- */
.site-head {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; margin-right: auto; }
.brand img { height: 30px; width: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--text-2); text-decoration: none; padding: 8px 12px; border-radius: 8px; font-weight: 500; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); background: var(--bg-3); }
.theme-btn {
  width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg-2); color: var(--text-2); cursor: pointer; display: grid; place-items: center;
}
.theme-btn:hover { color: var(--text); }
.theme-btn svg { width: 18px; height: 18px; }
.nav a { white-space: nowrap; }
@media (max-width: 720px) {
  .nav .hide-sm { display: none; }
  .brand img { height: 24px; }
  .nav a { padding: 8px 8px; }
}
@media (max-width: 420px) {
  .site-head .wrap { gap: 8px; }
  .brand img { height: 20px; }
  .nav { gap: 0; }
  .nav a { padding: 6px 7px; font-size: .95rem; }
}

/* ---- Buttons --------------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none;
  border: 1px solid transparent; font-size: 1rem;
}
.btn-primary { background: var(--btn); color: var(--btn-text); }
.btn-primary:hover { opacity: .9; }
.btn-ghost { border-color: var(--line); color: var(--text); background: var(--bg-2); }
.btn-ghost:hover { border-color: var(--text-3); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---- Hero ------------------------------------------------------------------------------------ */
.hero { background: var(--hero-bg); padding: 64px 0 40px; overflow: hidden; }
.hero .wrap { text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; font-size: .78rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); margin-bottom: 18px;
}
.duo { display: inline-flex; gap: 4px; }
.duo i { width: 18px; height: 4px; border-radius: 2px; display: block; }
.duo i:first-child { background: var(--a); box-shadow: var(--glow-a); }
.duo i:last-child { background: var(--b); box-shadow: var(--glow-b); }
.hero h1 { max-width: 19ch; margin-inline: auto; }
.hero h1 .a { color: var(--a); text-shadow: var(--glow-a); }
.hero h1 .b { color: var(--b); text-shadow: var(--glow-b); }
.hero .lead { font-size: clamp(1.05rem, 2.2vw, 1.25rem); color: var(--text-2); max-width: 46rem; margin: 0 auto 28px; }
.hero .btn-row { justify-content: center; }
.hero-shot { margin: 48px auto 0; max-width: 1040px; position: relative; }
.frame {
  border-radius: 14px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-2);
  box-shadow: var(--shadow);
}
.frame img { display: block; width: 100%; }
.hero-shot .phone {
  position: absolute; right: -8px; bottom: -28px; width: 23%; min-width: 120px;
  border-radius: 22px; border: 6px solid #0d0f12; box-shadow: var(--shadow); overflow: hidden; background: #0d0f12;
}
.hero-shot .phone img { display: block; width: 100%; }
@media (max-width: 720px) {
  .hero { padding-top: 40px; }
  .hero-shot .phone { right: 4px; bottom: -18px; width: 30%; border-width: 4px; border-radius: 14px; }
}

/* ---- Sections -------------------------------------------------------------------------------- */
section { padding: 72px 0; }
section.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.section-head { max-width: 46rem; margin-bottom: 36px; }
.section-head p { color: var(--text-2); font-size: 1.08rem; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1040px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 14px; padding: 22px;
}
section.alt .card { background: var(--bg); }
.card h3 { display: flex; align-items: center; gap: 10px; }
.card p { color: var(--text-2); margin: 0; }
.icon {
  width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; flex: none;
  background: var(--a-soft); color: var(--a);
}
.icon.b { background: var(--b-soft); color: var(--b); }
.icon svg { width: 20px; height: 20px; }

/* Picture + text rows on the features page and home. */
.feature { display: grid; grid-template-columns: 1fr 1.25fr; gap: 40px; align-items: center; padding: 28px 0; }
.feature + .feature { border-top: 1px solid var(--line); }
.feature.flip > :first-child { order: 2; }
.feature h3 { font-size: 1.5rem; font-family: "Russo One", "Saira", sans-serif; font-weight: 400; }
.feature ul { margin: 0; padding-left: 1.1em; color: var(--text-2); }
.feature li { margin: .3em 0; }
.feature li::marker { color: var(--a); }
.feature figcaption { font-size: .85rem; color: var(--text-3); margin-top: 8px; }
@media (max-width: 860px) {
  .feature { grid-template-columns: 1fr; gap: 20px; }
  .feature.flip > :first-child { order: 0; }
}

/* Example finding, styled like the report's own words. */
.quote {
  border-left: 3px solid var(--b); background: var(--b-soft); padding: 12px 16px; border-radius: 0 10px 10px 0;
  color: var(--text); font-weight: 500; margin: 0 0 1em;
}
.quote.a { border-color: var(--a); background: var(--a-soft); }

/* How it works */
.steps { counter-reset: s; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.step { position: relative; padding: 22px; border-radius: 14px; border: 1px solid var(--line); background: var(--bg-2); }
section.alt .step { background: var(--bg); }
.step::before {
  counter-increment: s; content: counter(s);
  font-family: "Russo One", sans-serif; font-size: 1.1rem; display: grid; place-items: center;
  width: 36px; height: 36px; border-radius: 50%; margin-bottom: 12px;
  color: var(--a); border: 2px solid var(--a); box-shadow: var(--glow-a);
}
.step:nth-child(even)::before { color: var(--b); border-color: var(--b); box-shadow: var(--glow-b); }
.step p { color: var(--text-2); margin: 0; }

/* Data sources strip */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .92rem; color: var(--text-2); background: var(--bg-2); }

/* Early access */
.cta {
  border-radius: 18px; padding: clamp(24px, 5vw, 48px); border: 1px solid var(--line);
  background:
    radial-gradient(600px 240px at 0% 0%, var(--a-soft), transparent 70%),
    radial-gradient(600px 240px at 100% 100%, var(--b-soft), transparent 70%),
    var(--bg-2);
}
.cta h2 { margin-bottom: .3em; }
.cta .mail { font-weight: 600; word-break: break-all; }

/* Prose pages (legal) */
.prose { max-width: 46rem; }
.prose h2 { font-size: 1.5rem; margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.todo {
  border: 1px dashed var(--b); background: var(--b-soft); border-radius: 10px; padding: 10px 14px; margin: 0 0 1em;
}

/* ---- Footer ---------------------------------------------------------------------------------- */
.site-foot { border-top: 1px solid var(--line); padding: 32px 0 40px; color: var(--text-3); font-size: .9rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-left: auto; }
.site-foot a { color: var(--text-2); text-decoration: none; }
.site-foot .by { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); }
.site-foot .by img { height: 24px; width: auto; }
.site-foot a:hover { color: var(--text); text-decoration: underline; }