/* Caravango — caravango.app
   Trailhead brand: pine + ochre on warm stone. See brand-kit.md.
   No JavaScript, no external assets. */

/* ---------- Tokens ---------- */

:root {
  --pine: #2f6b53;
  --pine-deep: #275a46;
  --pine-muted: #e7f0eb;
  --ochre: #dd9a3c;
  --stone: #eee8de;
  --paper: #faf7f1;
  --ink: #20302a;
  --text: #26332d;
  --text-muted: #57635c;
  --line: #d9d0c1;
  --card: #fffdf9;

  --status-enroute: #5856d6;
  --status-arrived: #2e7d43;
  --status-deviating: #c46a1b;

  --font-display: "Iowan Old Style", "Palatino Nova", Palatino, "Book Antiqua", Georgia, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --radius: 14px;
  --measure: 68ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --pine: #4fa585;
    --pine-deep: #62b997;
    --pine-muted: #1c2c25;
    --ochre: #ecb55e;
    --stone: #171d1a;
    --paper: #131916;
    --ink: #e8e2d4;
    --text: #d9d4c7;
    --text-muted: #9aa69e;
    --line: #2c352f;
    --card: #1d2620;

    --status-enroute: #8583ea;
    --status-arrived: #58b877;
    --status-deviating: #e09a52;
  }
}

/* ---------- Base ---------- */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.01em;
}

a { color: var(--pine-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ochre); }

img, svg { max-width: 100%; height: auto; }

.wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

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

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand svg { display: block; flex: none; }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.site-nav a {
  font-size: 0.95rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--pine-deep);
  border-bottom-color: var(--ochre);
}

/* ---------- Hero ---------- */

.hero {
  background: var(--stone);
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 48px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 88px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  margin: 0 0 20px;
}

.hero h1 em {
  font-style: italic;
  color: var(--pine);
}

.hero .lede {
  font-size: 1.2rem;
  max-width: 34em;
  margin: 0 0 28px;
  color: var(--text);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--pine-deep);
  background: var(--pine-muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ochre);
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 1rem;
  padding: 13px 26px;
  border-radius: 12px;
  text-decoration: none;
}

.btn-primary { background: var(--pine); color: #fff; }
.btn-primary:hover { background: var(--pine-deep); color: #fff; }

@media (prefers-color-scheme: dark) {
  .btn-primary { color: #10201a; }
  .btn-primary:hover { color: #10201a; }
}

.btn-quiet { color: var(--pine-deep); }

/* Route illustration + trip card */

.hero-visual { position: relative; min-width: 0; }

.route-art { display: block; margin: 0 auto; }

.trip-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px -24px rgba(32, 48, 42, 0.45);
  padding: 18px 20px;
  max-width: 340px;
  margin: -34px auto 0;
  position: relative;
}

.trip-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 12px;
}

.traveler {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
}

.traveler + .traveler { border-top: 1px solid var(--line); }

.traveler-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex: none;
}

.traveler-name { flex: 1; font-weight: 600; font-size: 0.95rem; color: var(--ink); }

.traveler-eta {
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pill {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 9px;
  border-radius: 999px;
}

.pill-enroute { color: var(--status-enroute); background: color-mix(in srgb, var(--status-enroute) 14%, transparent); }
.pill-arrived { color: var(--status-arrived); background: color-mix(in srgb, var(--status-arrived) 14%, transparent); }
.pill-deviating { color: var(--status-deviating); background: color-mix(in srgb, var(--status-deviating) 14%, transparent); }

/* ---------- Sections ---------- */

.section { padding: 76px 0; }

.section-kicker {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ochre);
  margin: 0 0 10px;
}

@media (prefers-color-scheme: light) {
  .section-kicker { color: #a86f1e; } /* ochre darkened for AA on light paper */
}

.section h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  margin: 0 0 14px;
  max-width: 22em;
}

.section-intro { max-width: 44em; color: var(--text-muted); margin: 0 0 40px; }

/* Feature grid */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--pine-muted);
  color: var(--pine-deep);
  margin-bottom: 14px;
}

.feature h3 { font-size: 1.15rem; margin: 0 0 8px; }
.feature p { margin: 0; font-size: 0.97rem; color: var(--text-muted); }

/* How it works */

.steps {
  counter-reset: step;
  display: grid;
  gap: 0;
  max-width: 620px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.steps li {
  counter-increment: step;
  position: relative;
  padding: 0 0 30px 62px;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: -2px;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--pine-deep);
  background: var(--pine-muted);
  border: 1px solid var(--line);
  border-radius: 50%;
}

/* dashed trail between steps */
.steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 18.5px;
  top: 40px;
  bottom: 4px;
  border-left: 2px dashed var(--line);
}

.steps h3 { font-size: 1.1rem; margin: 0 0 4px; }
.steps p { margin: 0; color: var(--text-muted); font-size: 0.97rem; }

/* Privacy band */

.privacy-band { background: var(--ink); }

@media (prefers-color-scheme: dark) {
  .privacy-band { background: #101713; }
}

.privacy-band .wrap { padding-top: 72px; padding-bottom: 72px; }

.privacy-band .section-kicker { color: var(--ochre); }

.privacy-band h2 { color: var(--stone); }

@media (prefers-color-scheme: dark) {
  .privacy-band h2 { color: var(--ink); }
}

.privacy-points {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 10px 34px;
  padding: 0;
  margin: 26px 0 30px;
  list-style: none;
}

.privacy-points li {
  position: relative;
  padding: 6px 0 6px 30px;
  color: #cfd8d0;
  font-size: 0.99rem;
}

.privacy-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 16px;
  height: 8px;
  border-left: 2.5px solid var(--ochre);
  border-bottom: 2.5px solid var(--ochre);
  transform: rotate(-45deg) translateY(-2px);
}

.privacy-band a { color: var(--stone); }
.privacy-band a:hover { color: var(--ochre); }

@media (prefers-color-scheme: dark) {
  .privacy-points li { color: #b8c2ba; }
  .privacy-band a { color: var(--ink); }
}

/* Audience list */

.audience {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.audience li {
  background: var(--stone);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  font-size: 0.98rem;
}

.audience strong { display: block; font-family: var(--font-display); font-size: 1.08rem; color: var(--ink); margin-bottom: 3px; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--stone);
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

.site-footer .wrap {
  padding-top: 40px;
  padding-bottom: 44px;
  display: flex;
  flex-wrap: wrap;
  gap: 24px 48px;
  justify-content: space-between;
  align-items: flex-start;
}

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

.site-footer a { color: var(--text); font-size: 0.93rem; text-decoration: none; }
.site-footer a:hover { color: var(--pine-deep); text-decoration: underline; }

.footer-note { font-size: 0.85rem; color: var(--text-muted); max-width: 46em; margin: 8px 0 0; }

/* ---------- Document pages (privacy / terms / support) ---------- */

.doc-hero {
  background: var(--stone);
  border-bottom: 1px solid var(--line);
}

.doc-hero .wrap { padding-top: 52px; padding-bottom: 44px; }

.doc-hero h1 { font-size: clamp(2rem, 4.5vw, 2.8rem); margin: 0 0 10px; }

.doc-meta { color: var(--text-muted); font-size: 0.95rem; margin: 0; }

.doc {
  max-width: var(--measure);
  padding: 48px 24px 72px;
  margin: 0 auto;
}

.doc h2 {
  font-size: 1.45rem;
  margin: 44px 0 14px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.doc h2:first-child { border-top: 0; padding-top: 0; margin-top: 0; }

.doc h3 { font-size: 1.12rem; margin: 28px 0 10px; }

.doc p, .doc li { color: var(--text); }

.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }

.doc strong { color: var(--ink); }

.notice {
  background: var(--pine-muted);
  border: 1px solid var(--line);
  border-left: 4px solid var(--pine);
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 0.95rem;
  margin: 0 0 34px;
}

.todo {
  background: color-mix(in srgb, var(--ochre) 22%, transparent);
  border-radius: 4px;
  padding: 0 4px;
  font-style: normal;
  font-weight: 600;
  color: var(--ink);
}

/* Support page */

.contact-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin: 0 0 40px;
}

.contact-card h2 { border: 0; padding: 0; margin: 0 0 8px; }

.contact-email {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--ink);
  padding: 14px 0;
  list-style: none;
  position: relative;
  padding-right: 34px;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ochre);
  line-height: 1;
}

.faq details[open] summary::after { content: "–"; }

.faq details p { margin: 0 0 16px; color: var(--text-muted); }

/* ---------- Responsive ---------- */

@media (max-width: 800px) {
  .hero .wrap {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 48px;
    padding-bottom: 60px;
  }
  .section { padding: 56px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}