/*
 * bikepackingwizard.com — the one stylesheet (Website_Build.md §4).
 * The palette is the app's own (Design_Language.md §1: theme tokens, AccentBlue, the D-140 route
 * line, the D-157 status fills) so the site and the app read as one product; the type is the app's
 * system face (§2), so the site loads nothing from a third party. Dark mode follows the visitor's OS.
 * Drafted with Claude Code assistance; reviewed by the developer (D-024).
 */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f0f0f3;
  --surface-strong: #e0e1e6;
  --text: #000000;
  --text-2: #60646c;
  --link: #1a6fc1;
  --accent: #208aef;
  --route: #e8511a;
  --open: #2e9e44;
  --close: #b28300;
  --closed: #d64545;
  --unknown: #868b91;
  --rule: rgba(0, 0, 0, 0.12);
  --bezel: #0b0b0c;
  --shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.35);
  --max: 1080px;
  --gutter: 20px;
  --radius: 16px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: #212225;
    --surface-strong: #2e3135;
    --text: #ffffff;
    --text-2: #b0b4ba;
    --link: #208aef;
    --rule: rgba(255, 255, 255, 0.14);
    --bezel: #2e3135;
    --shadow: none;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--link);
  text-underline-offset: 0.15em;
}

a:hover {
  text-decoration-thickness: 2px;
}

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

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  font-weight: 800;
}

h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
}

figure {
  margin: 0;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: var(--gutter);
  top: 12px;
  background: var(--bg);
  padding: 8px 12px;
  z-index: 10;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--rule);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.wordmark {
  white-space: nowrap;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 20px;
  font-size: 1rem;
}

.site-nav a {
  color: var(--text-2);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
}

/* Hero */

.hero {
  padding: 56px 0 72px;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--route);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.lede {
  font-size: 1.2rem;
  color: var(--text-2);
  max-width: 36em;
}

.status {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  background: var(--surface);
  border-radius: 14px;
  padding: 8px 16px;
  font-size: 0.95rem;
  margin: 8px 0 24px;
}

.status .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--route);
  flex: none;
}

.button {
  display: inline-block;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 22px;
  border-radius: 12px;
  text-decoration: none;
}

.button:hover {
  opacity: 0.88;
}

.cta-note {
  font-size: 0.95rem;
  color: var(--text-2);
  margin-top: 12px;
}

/* Phone frame: the screenshots carry their own black corner mask, so the bezel only has to
   round and pad them. 1206 × 2622 is the iPhone 17 simulator's framebuffer. */

.phone {
  width: min(300px, 78vw);
  margin: 0 auto;
  padding: 9px;
  background: var(--bezel);
  border-radius: 48px;
  box-shadow: var(--shadow);
}

.phone img {
  border-radius: 40px;
  aspect-ratio: 1206 / 2622;
  width: 100%;
}

.shot-caption {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-2);
  margin-top: 14px;
}

/* Feature rows */

.section {
  padding: 72px 0;
  border-top: 1px solid var(--rule);
}

.row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.row + .row {
  margin-top: 88px;
}

.row-text {
  max-width: 34em;
}

.row-text p {
  color: var(--text-2);
}

.row-text .sub {
  margin-top: 2em;
}

.legend {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 0.95rem;
}

.legend li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.legend .swatch {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.swatch.open { background: var(--open); }
.swatch.close { background: var(--close); }
.swatch.closed { background: var(--closed); }
.swatch.unknown { background: var(--unknown); }

/* Cards */

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
}

.card p {
  color: var(--text-2);
  margin: 0;
}

.routes {
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.routes li {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 18px 22px;
  border-left: 4px solid var(--route);
}

.routes strong {
  display: block;
  font-size: 1.05rem;
}

.routes span {
  color: var(--text-2);
  font-size: 0.95rem;
}

.note {
  color: var(--text-2);
  margin-top: 20px;
}

/* Closing band */

.band {
  background: var(--surface);
  border-radius: 24px;
  padding: 40px 28px;
  text-align: center;
}

.band p {
  color: var(--text-2);
  max-width: 34em;
  margin-left: auto;
  margin-right: auto;
}

/* Prose pages: support, privacy, terms */

.page {
  padding: 48px 0 80px;
}

.prose {
  max-width: 44em;
}

.page .prose h2 {
  font-size: 1.45rem;
  margin-top: 1.8em;
}

.prose h3 {
  margin-top: 1.4em;
  margin-bottom: 0.4em;
}

.prose ul {
  padding-left: 1.2em;
  margin: 0 0 1em;
}

.prose li {
  margin-bottom: 0.4em;
}

.prose .meta {
  color: var(--text-2);
  font-size: 0.95rem;
}

.contact-box {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  margin: 24px 0 8px;
}

.contact-box p {
  margin: 0 0 0.4em;
}

.contact-box .big {
  font-size: 1.25rem;
  font-weight: 700;
}

.faq dt {
  font-weight: 700;
  margin-top: 1.4em;
}

.faq dd {
  margin: 0.3em 0 0;
  color: var(--text-2);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 32px 0 48px;
  font-size: 0.95rem;
  color: var(--text-2);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: space-between;
}

.site-footer p {
  margin: 0 0 4px;
}

.site-footer .company {
  color: var(--text);
  font-weight: 700;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.site-footer a {
  color: var(--text-2);
}

@media (max-width: 479px) {
  .site-nav .wide {
    display: none;
  }
}

@media (min-width: 760px) {
  .hero {
    padding: 80px 0 96px;
  }

  .hero .wrap {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .row {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }

  .row.flip .row-media {
    order: -1;
  }

  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .routes {
    grid-template-columns: repeat(2, 1fr);
  }

  .band {
    padding: 56px 48px;
  }
}

@media (min-width: 1000px) {
  .cards {
    grid-template-columns: repeat(4, 1fr);
  }
}