/* Pint web style — Mono Light のみ (LP は light only / reviewer 配慮で dark mode media query なし)
   Playbook Pattern 12: Marketing URL はライト固定 + color-scheme: light only
*/

@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600&family=Inter+Tight:wght@400;500;600;700&family=Noto+Serif+JP:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;600;700&family=JetBrains+Mono:wght@500&display=swap');

:root {
  color-scheme: light only;

  --font-serif-en: 'Source Serif 4', 'Times New Roman', serif;
  --font-sans-en: 'Inter Tight', -apple-system, system-ui, sans-serif;
  --font-serif-jp: 'Noto Serif JP', 'Hiragino Mincho ProN', serif;
  --font-sans-jp: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --font-display: var(--font-sans-jp), var(--font-sans-en);
  --font-display-serif: var(--font-serif-en), var(--font-serif-jp);
  --font-body: var(--font-sans-jp), var(--font-sans-en);

  /* Mono Light tokens */
  --bg: #f7f6f3;
  --bg-raised: #ffffff;
  --bg-sunken: #ececea;
  --ink: #1a1a1a;
  --ink-2: #404040;
  --ink-3: #767472;
  --ink-4: #b6b4b0;
  --line: rgba(10, 10, 10, 0.07);
  --line-strong: rgba(10, 10, 10, 0.14);
  --accent: #c4660c;
  --accent-2: #e08a26;
  --accent-soft: #fbe7c8;
  --grad-1: #f5f5f3;
  --grad-2: #2a2a2a;
  --grad-3: #c4660c;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 1px 3px rgba(0, 0, 0, 0.05), 0 6px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.10);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 24px; }

/* Top nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  background: rgba(247, 246, 243, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--line);
}
.nav-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; }
.nav-brand-mark {
  width: 22px; height: 26px; display: inline-block; flex: 0 0 auto;
  color: var(--accent);
}
.nav-brand-name {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 600; letter-spacing: -0.02em;
  color: var(--ink);
}
.nav-links { display: flex; gap: 24px; font-size: 13px; color: var(--ink-2); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent); color: #fff;
  padding: 9px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 700;
  border: none; cursor: pointer;
}
.nav-cta:hover { filter: brightness(0.96); text-decoration: none; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 22px; border-radius: 12px;
  background: var(--accent); color: #fff;
  font-family: var(--font-body); font-size: 14px; font-weight: 700;
  border: none; cursor: pointer;
}
.btn:hover { filter: brightness(0.96); text-decoration: none; }
.btn.ghost {
  background: var(--bg-raised); color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}
.btn.dark { background: var(--ink); color: var(--bg); }
.btn.lg { padding: 16px 28px; font-size: 15px; }

/* Caps + display */
.cap {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}
.display-serif {
  font-family: var(--font-display-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--ink);
}
.lede {
  font-family: var(--font-serif-jp);
  font-size: 19px; line-height: 1.85;
  color: var(--ink-2);
}

/* Tag */
.tag {
  display: inline-block;
  padding: 4px 10px; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent);
  font-size: 11px; font-weight: 700;
}
.tag.neutral { background: var(--bg-sunken); color: var(--ink-2); }

/* Card */
.card {
  background: var(--bg-raised);
  border-radius: 14px;
  box-shadow: inset 0 0 0 0.5px var(--line);
  padding: 24px;
}

/* Sections */
section { padding: 88px 0; border-top: 0.5px solid var(--line); }
section.first { border-top: none; padding-top: 64px; }

/* Footer */
.footer {
  padding: 48px 32px 56px;
  background: var(--bg-sunken);
  border-top: 0.5px solid var(--line);
  font-size: 12px; color: var(--ink-3);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  max-width: 1180px; margin: 0 auto;
}
.footer h4 {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.12em;
  color: var(--ink-2);
  text-transform: uppercase;
  margin: 0 0 12px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 6px; }
.footer-meta {
  max-width: 1180px;
  margin: 36px auto 0;
  padding-top: 20px;
  border-top: 0.5px solid var(--line);
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-4);
}

/* Doc page (terms / privacy) */
.doc h1 {
  font-family: var(--font-display);
  font-size: 36px; font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.2;
  margin: 0 0 8px;
}
.doc .meta {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-3); margin-bottom: 40px;
}
.doc h2 {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.01em;
  margin: 48px 0 12px;
}
.doc h3 {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 600;
  margin: 32px 0 8px;
}
.doc p { margin: 0 0 14px; color: var(--ink-2); line-height: 1.85; }
.doc ul, .doc ol { color: var(--ink-2); padding-left: 1.4em; line-height: 1.85; }
.doc li { margin-bottom: 6px; }
.doc strong { color: var(--ink); font-weight: 700; }
.doc hr {
  border: 0; border-top: 0.5px solid var(--line);
  margin: 48px 0;
}
.doc a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }

/* Reveal: Pattern 12 — initial opacity 1 so JS-disabled reviewers see content */
.reveal { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 720px) {
  .container, .container-narrow { padding: 0 20px; }
  .nav { padding: 12px 20px; }
  .nav-links { display: none; }
  section { padding: 56px 0; }
  .display { font-size: 36px !important; }
  .display-serif { font-size: 36px !important; }
  .lede { font-size: 16px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .doc h1 { font-size: 28px; }
  .doc h2 { font-size: 18px; margin-top: 32px; }
}