/* Public site styling.
 *
 * Design tokens mirror the Flutter app (lib/util/theme.dart): the warm
 * near-black ground, the paper-toned cards, and the four bundled faces. Keep
 * them in step when the app's theme moves.
 */

@font-face {
  font-family: 'Fraunces';
  src: url('/site/fonts/Fraunces.woff2') format('woff2');
  font-weight: 400 700;
  font-display: swap;
}
@font-face {
  font-family: 'Instrument Sans';
  src: url('/site/fonts/InstrumentSans.woff2') format('woff2');
  font-weight: 400 700;
  font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('/site/fonts/Newsreader.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('/site/fonts/JetBrainsMono.woff2') format('woff2');
  font-weight: 500;
  font-display: swap;
}

:root {
  --bg: #171412;
  --surface: #211d1a;
  --surface-high: #2a2522;
  --text: #ede6dc;
  --dim: #a79c8f;
  --paper: #f2e8d5;
  --paper-sage: #d2e0c0;
  --paper-mist: #c9dbe9;
  --paper-clay: #edd0b6;
  --paper-lilac: #dfd2eb;
  --ink: #2e2823;
  --ink-dim: #564e45;
  --red: #e5484d;
  --link-on-paper: #9e362e;
  --shadow: #120c06;
  --radius-card: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-sans: 'Instrument Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-reading: 'Newsreader', Georgia, serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, p, ul, figure { margin: 0; padding: 0; }
ul { list-style: none; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--text); text-decoration-color: rgba(237, 230, 220, 0.35); }
a:hover { text-decoration-color: var(--red); }

.wrap { width: min(100% - 40px, 1040px); margin-inline: auto; }
.narrow { width: min(100% - 40px, 660px); margin-inline: auto; }

/* ---------------------------------------------------------------- wordmark */
/* "breakpoints" with the breakpoint dot on the baseline, as in the app.
   The dot is a period, not a bullet: 0.22em across, nudged by 0.9 of itself. */
.wordmark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  white-space: nowrap;
}
.wordmark::after {
  content: '';
  width: 0.22em;
  height: 0.22em;
  margin-left: 0.198em;
  border-radius: 50%;
  background: var(--red);
  flex: none;
}

/* ------------------------------------------------------------------ header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
}
.lang-toggle { display: inline-flex; gap: 2px; padding: 3px; background: var(--surface); border-radius: 999px; }
.lang-toggle button {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--dim);
  background: none;
  border: 0;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
}
.lang-toggle button.active { background: var(--surface-high); color: var(--text); }

/* -------------------------------------------------------------------- hero */
.hero { padding: 40px 0 72px; display: grid; gap: 56px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 900px) { .hero { grid-template-columns: 1.05fr 0.95fr; padding: 64px 0 96px; } }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--dim);
  display: flex;
  align-items: center;
  gap: 9px;
}
.eyebrow::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--red); }

h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 6.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 20px 0 18px;
}
.lead { font-size: clamp(1.05rem, 2.2vw, 1.22rem); color: var(--dim); max-width: 34ch; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 30px; }
.badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--paper);
  color: var(--ink);
  padding: 11px 18px;
  border-radius: 999px;
  font-weight: 500;
}
.badge-ghost { background: none; color: var(--dim); border: 1px solid rgba(167, 156, 143, 0.3); }

/* -------------------------------------------------------------- card mockup */
/* A drawing of the deck, not a screenshot: same tokens, same wording. */
.deck { position: relative; margin-inline: auto; width: min(100%, 330px); padding: 26px 0 8px; }
.card {
  border-radius: var(--radius-card);
  padding: 24px;
  color: var(--ink);
  box-shadow: 0 18px 40px -18px var(--shadow), 0 2px 6px rgba(18, 12, 6, 0.4);
}
.card-back {
  position: absolute;
  left: 0; right: 0;
  height: 120px;
}
.card-back-1 { background: var(--paper-mist); top: 0; transform: rotate(-3.2deg) scale(0.94); }
.card-back-2 { background: var(--paper-sage); top: 12px; transform: rotate(2.1deg) scale(0.97); }
.card-front { position: relative; background: var(--paper); min-height: 340px; display: flex; flex-direction: column; }

.card-meta {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-meta .dot { color: var(--ink); }
.card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 16px 0 12px;
}
.card p { font-family: var(--font-reading); font-size: 1rem; line-height: 1.5; color: var(--ink-dim); }
.card-foot { margin-top: auto; padding-top: 20px; display: flex; justify-content: space-between; }
.swipe-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.swipe-hint strong { color: var(--ink); font-weight: 500; }

.deck-legend {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
}

/* ---------------------------------------------------------------- features */
.section { padding: 64px 0; border-top: 1px solid rgba(167, 156, 143, 0.14); }
.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 3.6vw, 2.3rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 34px;
}
.grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(2, 1fr); } }

.feature {
  background: var(--surface);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  border: 1px solid rgba(167, 156, 143, 0.1);
}
.feature h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}
.feature p { color: var(--dim); font-size: 0.98rem; }
.feature-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--dim);
  display: block;
  margin-bottom: 14px;
}
.feature-tag::before { content: '·'; color: var(--red); margin-right: 7px; }

/* A pair of paper-toned callouts, echoing the deck. */
.paper-note { border-radius: var(--radius-card); padding: 26px 24px; color: var(--ink); }
.paper-note h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; margin-bottom: 10px; }
.paper-note p { color: var(--ink-dim); font-size: 0.98rem; }
.paper-note a { color: var(--link-on-paper); text-decoration-color: rgba(158, 54, 46, 0.4); }
.tone-clay { background: var(--paper-clay); }
.tone-lilac { background: var(--paper-lilac); }

/* ------------------------------------------------------------------- prose */
.prose { padding: 24px 0 72px; }
.prose h1 { font-size: clamp(2rem, 5vw, 2.7rem); margin-bottom: 8px; }
.prose h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.28rem;
  letter-spacing: -0.015em;
  margin: 36px 0 10px;
}
.prose p, .prose li { color: var(--text); margin-bottom: 11px; }
.prose ul { margin: 0 0 16px; }
.prose li { position: relative; padding-left: 20px; }
.prose li::before { content: '·'; position: absolute; left: 4px; color: var(--red); }
.prose .updated {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 28px;
}

/* ------------------------------------------------------------------ footer */
.site-footer {
  border-top: 1px solid rgba(167, 156, 143, 0.14);
  padding: 30px 0 56px;
  color: var(--dim);
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  align-items: center;
}
.site-footer a { color: var(--dim); }
.site-footer .spacer { flex: 1 1 auto; }

html[data-lang='en'] .lang-de { display: none; }
html[data-lang='de'] .lang-en { display: none; }