/* Synchior — landing page styles.
 * Editorial aesthetic matching the mobile app: cream paper bg, deep
 * sage accent, display serif for hero, mono for captions/eyebrows.
 *
 * No build step, no framework. Single CSS file. Mobile-first.
 */

:root {
  --bg: #faf8f3;
  --bg-elev: #ffffff;
  --bg-sunk: #f0ece4;
  --fg: #1a1814;
  --fg-muted: #6b6660;
  --fg-faint: #968e80;
  --border: #e6e1d6;
  --border-subtle: #efebdf;
  --accent: #2a4a3e;
  --accent-deep: #1f3830;
  --accent-wash: rgba(42, 74, 62, 0.08);

  --display: 'Iowan Old Style', 'Palatino', 'Palatino Linotype', 'Georgia', serif;
  --body: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14130f;
    --bg-elev: #1e1c17;
    --bg-sunk: #0f0e0b;
    --fg: #f0ebe0;
    --fg-muted: #968e80;
    --fg-faint: #6b6660;
    --border: #2a2722;
    --border-subtle: #221f1b;
    --accent: #6fae9b;
    --accent-deep: #4a8c79;
    --accent-wash: rgba(111, 174, 155, 0.10);
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--body);
  line-height: 1.55;
  font-size: 16px;
  min-height: 100vh;
}

a {
  color: var(--accent-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
a:hover {
  border-bottom-color: var(--accent-deep);
}

/* ─── Layout ───────────────────────────────────────────────────── */

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px;
}

@media (min-width: 768px) {
  .wrap {
    padding: 56px 32px;
  }
}

.section {
  padding: 48px 0;
  border-top: 1px solid var(--border-subtle);
}

.section:first-of-type {
  border-top: none;
  padding-top: 0;
}

@media (min-width: 768px) {
  .section {
    padding: 72px 0;
  }
}

/* ─── Header ───────────────────────────────────────────────────── */

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
}
.brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.brand a {
  color: inherit;
  border: none;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.nav-cta {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
  border: 1px solid var(--accent-deep);
  padding: 8px 14px;
  border-radius: 6px;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-cta:hover {
  background: var(--accent-deep);
  color: var(--bg);
  border-bottom-color: var(--accent-deep);
}

/* ─── Eyebrow ───────────────────────────────────────────────────── */

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 12px;
}

/* ─── Hero ─────────────────────────────────────────────────────── */

.hero h1 {
  font-family: var(--display);
  font-size: 36px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 20px;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 52px;
  }
}

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

.hero .sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  margin-bottom: 28px;
  line-height: 1.55;
}

.hero .cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  font-family: var(--body);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  text-decoration: none;
}
.btn:hover {
  border-bottom-color: transparent;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-deep);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn-secondary:hover {
  background: var(--bg-sunk);
  color: var(--fg);
}

/* ─── Pull quote ──────────────────────────────────────────────── */

.pull {
  font-family: var(--display);
  font-style: italic;
  font-size: 22px;
  line-height: 1.4;
  color: var(--fg);
  padding: 20px 0;
  border-left: 2px solid var(--accent);
  padding-left: 20px;
  margin: 24px 0;
}
.pull-attr {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg-faint);
  margin-top: 8px;
  text-transform: uppercase;
}

/* ─── Cards / list ─────────────────────────────────────────────── */

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.card h3 {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 400;
  margin-bottom: 8px;
  color: var(--fg);
}
.card p {
  color: var(--fg-muted);
  font-size: 15px;
}

.list-headline {
  font-family: var(--display);
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 16px;
}
.list-headline em {
  font-style: italic;
  color: var(--accent-deep);
}

@media (min-width: 768px) {
  .list-headline {
    font-size: 36px;
  }
}

.list-intro {
  color: var(--fg-muted);
  font-size: 16px;
  margin-bottom: 28px;
  max-width: 560px;
}

.honest-list {
  list-style: none;
  padding: 0;
}
.honest-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  align-items: start;
}
.honest-list li:last-child {
  border-bottom: none;
}
.honest-list .tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-muted);
  padding-top: 3px;
}
.honest-list .text {
  color: var(--fg);
  font-size: 16px;
  line-height: 1.55;
}

/* ─── Footer ───────────────────────────────────────────────────── */

footer {
  border-top: 1px solid var(--border-subtle);
  padding: 32px 0 48px;
  margin-top: 32px;
  font-size: 13px;
  color: var(--fg-faint);
}

footer .links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  margin-bottom: 16px;
}

footer a {
  color: var(--fg-muted);
}
footer a:hover {
  color: var(--accent-deep);
}

footer .legal {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg-faint);
}

/* ─── Long-form (privacy / terms) ─────────────────────────────── */

.prose {
  max-width: 680px;
}

.prose h1 {
  font-family: var(--display);
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 400;
  margin-bottom: 12px;
}

.prose .updated {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 32px;
}

.prose h2 {
  font-family: var(--display);
  font-size: 22px;
  line-height: 1.2;
  font-weight: 400;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--fg);
}

.prose h3 {
  font-family: var(--body);
  font-size: 16px;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 6px;
  color: var(--fg);
}

.prose p,
.prose li {
  font-size: 16px;
  line-height: 1.65;
  color: var(--fg);
  margin-bottom: 14px;
}

.prose ul,
.prose ol {
  padding-left: 24px;
  margin-bottom: 14px;
}

.prose strong {
  color: var(--fg);
  font-weight: 600;
}

.prose blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 16px;
  margin: 16px 0;
  color: var(--fg-muted);
  font-style: italic;
}

.prose .lede {
  font-size: 18px;
  color: var(--fg-muted);
  margin-bottom: 24px;
  line-height: 1.55;
}