/* ============================================
   felitia / common.css
   共通スタイル（LP・記事で共有）
   ============================================ */

:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --text-primary: #e8e0d8;
  --text-secondary: #9a918a;
  --text-muted: #6b6360;
  --accent: #c4956a;
  --accent-soft: rgba(196, 149, 106, 0.15);
  --accent-hover: #d4a87a;
  --border: rgba(196, 149, 106, 0.12);
  --serif: 'Cormorant Garamond', serif;
  --sans: 'Noto Sans JP', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Divider ── */
.divider {
  width: 60px;
  height: 1px;
  background: var(--accent);
  margin: 0 auto;
  opacity: 0.4;
}

/* ── Age Banner ── */
.age-banner {
  text-align: center;
  padding: 1.5rem 2rem;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.age-banner p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  margin: 0;
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 3rem 2rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.footer-notes {
  max-width: 600px;
  margin: 0 auto 2rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.8;
  text-align: left;
}

.footer-notes p {
  margin-bottom: 0.8rem;
}

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* ── Reveal (scroll animation) ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}