/* ==========================================================================
   Snapp Automotive — site stylesheet
   Tokens and type scale follow the Snapp Automotive Design System.
   Hand-written, no framework, no build step.
   ========================================================================== */

/* ── Fonts ──────────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Geist';
  src: url('../fonts/geist.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Geist Mono';
  src: url('../fonts/geist-mono.ttf') format('truetype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ── Tokens ─────────────────────────────────────────────────────────────── */
:root {
  --bg-deep:      #12141d;
  --bg:           #1c1f2a;
  --surface:      #262a36;
  --surface-2:    #363948;

  --brand:        #66fffc;
  --brand-dim:    #009999;
  --accent:       #a064ff;

  --text:         #f0f1f7;
  --text-bright:  #e4e5ee;
  --text-muted:   #a8aabc;
  --text-faint:   rgba(240, 241, 247, 0.5);

  --border:       rgba(255, 255, 255, 0.10);
  --border-soft:  rgba(255, 255, 255, 0.06);

  --font-sans: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;

  --wrap:      1200px;
  --gutter:    clamp(20px, 5vw, 60px);
  --section-y: clamp(56px, 9vw, 120px);

  --radius:      12px;
  --radius-lg:   20px;
  --radius-pill: 9999px;

  --nav-h: 64px;
}

/* ── Reset / base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
figure { margin: 0; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
h1 { font-size: clamp(32px, 4.4vw, 48px);  line-height: 1.10; }
h2 { font-size: clamp(28px, 4vw, 48px);    line-height: 1.15; }
h3 { font-size: clamp(18px, 2vw, 24px);    line-height: 1.33; letter-spacing: -0.015em; }
h4 { font-size: clamp(16px, 1.6vw, 20px);  line-height: 1.40; letter-spacing: -0.015em; }

p { margin: 0; color: var(--text-muted); }

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

ul, ol { margin: 0; padding-left: 1.25em; color: var(--text-muted); }

hr { border: 0; border-top: 1px solid var(--border); margin: var(--section-y) 0; }

:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: var(--gutter); top: -100px; z-index: 100;
  background: var(--brand); color: var(--bg-deep); padding: 10px 16px;
  border-radius: var(--radius); font-family: var(--font-sans); font-weight: 500;
}
.skip-link:focus { top: 12px; }

/* ── Motion ─────────────────────────────────────────────────────────────
   Reveal-on-scroll is gated on the `js` class that site.js sets in <head>,
   so with JavaScript off nothing is ever hidden. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s cubic-bezier(.22, .61, .36, 1),
              transform .6s cubic-bezier(.22, .61, .36, 1);
  will-change: opacity, transform;
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
.js [data-reveal].is-visible { will-change: auto; }

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* Images settle in once decoded rather than popping */
.js img[loading="lazy"] { opacity: 0; transition: opacity .5s ease; }
.js img[loading="lazy"].is-loaded { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .js img[loading="lazy"] { opacity: 1; transition: none; }
}

/* ── Layout ─────────────────────────────────────────────────────────────── */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--deep { background: var(--bg-deep); }
.section--tight { padding-block: clamp(36px, 6vw, 72px); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  margin: 0 0 var(--space, 16px);
}

.lead {
  font-family: var(--font-mono);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 62ch;
}

/* ── Header / navigation ────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-deep);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease, background-color .25s ease;
}
.site-header.is-stuck {
  border-bottom-color: var(--border-soft);
  box-shadow: 0 8px 28px rgba(0, 0, 0, .35);
  background: rgba(18, 20, 29, .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: var(--nav-h);
}

.nav__logo { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.nav__logo img { height: 28px; width: 28px; }
.nav__logo span {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
}
.nav__logo:hover { text-decoration: none; }
.nav__logo:hover span { color: var(--brand); }

.nav__toggle { display: none; }

.nav__burger {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  cursor: pointer;
  border-radius: var(--radius);
  color: var(--text);
}
.nav__burger svg { width: 22px; height: 22px; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
}

.nav__item { position: relative; }

.nav__link,
.nav__trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text-bright);
  background: none;
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
}
.nav__link:hover,
.nav__trigger:hover { color: var(--brand); text-decoration: none; }
.nav__link[aria-current="page"] { color: var(--brand); }

.nav__caret { width: 12px; height: 12px; transition: transform .18s ease; }

.nav__panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 300px;
  padding: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 48px rgba(0, 0, 0, .55);
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
/* Desktop: open on hover and on keyboard focus — no JavaScript required.
   site.js additionally toggles .is-open so touch/click works too. */
.nav__item:hover > .nav__panel,
.nav__item:focus-within > .nav__panel,
.nav__item.is-open > .nav__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__item:hover > .nav__trigger .nav__caret,
.nav__item:focus-within > .nav__trigger .nav__caret,
.nav__item.is-open > .nav__trigger .nav__caret { transform: rotate(180deg); }

.nav__panel a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-sans);
}
.nav__panel a:hover { background: rgba(255, 255, 255, .07); text-decoration: none; }
.nav__panel strong {
  display: block;
  font-weight: 500;
  font-size: 15px;
  line-height: 1.35;
  color: var(--text);
}
.nav__panel span {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-pill);
  border: 1px solid var(--brand);
  color: var(--brand);
  background: transparent;
  cursor: pointer;
  transition: background-color .16s ease, color .16s ease;
}
.btn:hover { background: var(--brand); color: var(--bg-deep); text-decoration: none; }
.btn--solid { background: var(--brand); color: var(--bg-deep); }
.btn--solid:hover { background: #8dfffd; border-color: #8dfffd; }
.btn--ghost { border-color: var(--border); color: var(--text); }
.btn--ghost:hover { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.btn--lg { padding: 16px 32px; font-size: 18px; }

/* ── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  background: var(--bg-deep);
  padding-block: clamp(56px, 10vw, 128px);
  overflow: hidden;
}
.hero__title {
  font-size: clamp(40px, 6.2vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.hero__sub {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 56ch;
}
.hero__actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero__media { margin-top: clamp(32px, 5vw, 64px); }
.hero__media img { width: 100%; border-radius: var(--radius-lg); }

/* ── Generic content grid ───────────────────────────────────────────────── */
.grid { display: grid; gap: clamp(20px, 3vw, 32px); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.split {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) { .split { grid-template-columns: 1fr 1fr; } }
.split img { border-radius: var(--radius-lg); width: 100%; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color .16s ease, transform .16s ease;
}
.card:hover { border-color: var(--border); transform: translateY(-2px); }
.card a { text-decoration: none; color: inherit; }
.card__media { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-deep); }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card__title { font-size: clamp(18px, 1.8vw, 21px); line-height: 1.3; color: var(--text); }
.card:hover .card__title { color: var(--brand); }
.card__meta {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--text-faint);
  margin-top: auto;
  padding-top: 8px;
}
.card__excerpt { font-size: 15px; line-height: 1.55; color: var(--text-muted); }

/* Featured (first) card on listing pages */
.card--feature { grid-column: 1 / -1; }
@media (min-width: 860px) {
  .card--feature { flex-direction: row; align-items: stretch; }
  .card--feature .card__media { flex: 0 0 52%; aspect-ratio: auto; }
  .card--feature .card__body { justify-content: center; padding: clamp(24px, 3vw, 44px); gap: 14px; }
  .card--feature .card__title { font-size: clamp(24px, 2.8vw, 36px); line-height: 1.15; }
}

/* ── Logo wall (customers / partners) ───────────────────────────────────── */
.logo-wall {
  margin-top: clamp(36px, 5vw, 64px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: clamp(20px, 4vw, 48px);
  align-items: center;
}
.logo-wall__item {
  width: 100%;
  max-width: 88px;
  height: auto;
  margin-inline: auto;
  opacity: .75;
  filter: grayscale(1);
  transition: opacity .18s ease, filter .18s ease;
}
.logo-wall__item:hover { opacity: 1; filter: none; }

/* ── Link tiles (services / toolkit) ────────────────────────────────────── */
.tile {
  display: block;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  color: inherit;
  transition: border-color .16s ease, background-color .16s ease, transform .16s ease;
}
.tile:hover {
  text-decoration: none;
  border-color: var(--border);
  background: var(--surface-2);
  transform: translateY(-2px);
}
.tile h3 { font-size: clamp(18px, 1.8vw, 21px); }
.tile h3::after { content: ' \2192'; color: var(--brand); }
.tile p { margin-top: 8px; font-size: 15px; line-height: 1.5; }

/* ── Prose (articles) ───────────────────────────────────────────────────── */
/* Prose columns are left-aligned inside marketing sections; the article
   template centres its own column (see `article .prose` below). */
.prose { max-width: 74ch; }
article .prose { margin-inline: auto; }
.prose > * + * { margin-top: 24px; }
.prose h2 { margin-top: 56px; font-size: clamp(24px, 3vw, 34px); line-height: 1.2; }
.prose h3 { margin-top: 40px; }
.prose h4 { margin-top: 32px; }
.prose p,
.prose li { color: var(--text-muted); font-size: clamp(16px, 1.4vw, 18px); line-height: 1.6; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 8px; }
.prose strong { color: var(--text-bright); font-weight: 500; }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.prose img { border-radius: var(--radius); margin-block: 8px; }
.prose figure figcaption {
  font-family: var(--font-mono); font-size: 13px; color: var(--text-faint); margin-top: 10px;
}
.prose blockquote {
  margin: 32px 0;
  padding: 4px 0 4px 24px;
  border-left: 3px solid var(--brand);
  color: var(--text-bright);
}
.prose pre {
  background: var(--bg-deep);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  margin: 0;
}
.prose pre code {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-bright);
  white-space: pre;
}
.prose :not(pre) > code {
  font-family: var(--font-mono);
  font-size: .9em;
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--surface);
  color: var(--brand);
}
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border-soft); }
.prose th { color: var(--text); font-family: var(--font-sans); font-weight: 500; }

/* Article header */
.article-head { padding-block: clamp(40px, 6vw, 72px) 0; }
.article-head__title { max-width: 22ch; }
.article-head__meta {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--text-faint);
}
.article-hero { margin-top: clamp(28px, 4vw, 48px); }
.article-hero img { width: 100%; border-radius: var(--radius-lg); }

.backlink {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 14px; color: var(--text-muted);
}
.backlink:hover { color: var(--brand); text-decoration: none; }

/* ── CTA band ───────────────────────────────────────────────────────────── */
.cta { background: var(--bg); text-align: center; }
.cta h2 { font-size: clamp(32px, 5vw, 56px); line-height: 1.1; }
.cta__mail {
  display: inline-block;
  margin-top: 24px;
  font-family: var(--font-sans);
  font-size: clamp(18px, 2.4vw, 28px);
  font-weight: 500;
  color: var(--brand);
}

/* ── Footer ─────────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-soft);
  padding-block: clamp(48px, 7vw, 80px) 32px;
}
.footer__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.footer__brand { grid-column: 1 / -1; }
@media (min-width: 900px) { .footer__brand { grid-column: auto; } }
.footer__brand img { height: 28px; width: auto; }
.footer__cities {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
}
.footer__col h3 {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 14px;
}
.footer__col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer__col a { color: var(--text-muted); font-family: var(--font-sans); font-size: 15px; }
.footer__col a:hover { color: var(--brand); text-decoration: none; }

.footer__bottom {
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-faint);
}
.footer__social { display: flex; gap: 12px; }
.footer__social a {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: var(--radius-pill);
  color: var(--text-muted);
}
.footer__social a:hover { color: var(--brand); border-color: var(--brand); }
.footer__social svg { width: 18px; height: 18px; }

/* ── Mobile navigation (CSS only, checkbox toggle) ──────────────────────── */
@media (max-width: 860px) {
  .nav { flex-wrap: wrap; }
  .nav__burger { display: inline-flex; }

  .nav__menu {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    width: 100%;
    margin: 0;
    padding: 8px 0 20px;
    display: none;
  }
  .nav__toggle:checked ~ .nav__menu { display: flex; }

  .nav__link, .nav__trigger { width: 100%; justify-content: space-between; padding: 12px 4px; font-size: 17px; }
  .nav__trigger { pointer-events: none; }          /* panels are always open on mobile */
  .nav__caret { display: none; }

  .nav__panel {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: transparent;
    border: 0;
    border-left: 1px solid var(--border);
    border-radius: 0;
    margin: 0 0 8px 8px;
    padding: 0 0 0 10px;
    min-width: 0;
  }
  .nav__panel a { padding: 9px 6px; }
  .nav__panel span { display: none; }
}

@media (min-width: 861px) {
  .nav__burger { display: none; }
}

/* ── Print ──────────────────────────────────────────────────────────────── */
@media print {
  .site-header, .site-footer, .cta { display: none; }
  body { background: #fff; color: #000; }
  .prose p, .prose li { color: #222; }
}
