/* ============================================
   焚而不燬 — nectamen.com
   Memorial Hall Landing Page
   ============================================ */

/* --- Custom Properties --- */
:root {
  --bg-dark: #1a1a1a;
  --bg-card: #2d2d2d;
  --text-primary: #e8e4df;
  --text-muted: #a09a92;
  --accent-amber: #c4721a;
  --accent-gold: #8b7355;
  --accent-glow: rgba(196, 114, 26, 0.15);
  --font-serif: 'Noto Serif TC', 'Georgia', serif;
  --font-sans: 'Noto Sans TC', 'Helvetica Neue', sans-serif;
  --font-latin: 'Playfair Display', 'Georgia', serif;
}

/* --- Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-serif);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  padding: 4rem 2rem;
  text-align: center;
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 400px;
  background: radial-gradient(
    ellipse at center,
    rgba(196, 114, 26, 0.12) 0%,
    rgba(196, 114, 26, 0.05) 40%,
    transparent 70%
  );
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.hero__subtitle {
  font-family: var(--font-latin);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.hero__annotation {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.03em;
  line-height: 1.8;
  margin-top: 0.75rem;
  margin-bottom: 1.25rem;
  opacity: 0.85;
}

.hero__tagline {
  font-family: var(--font-sans);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-muted);
  font-weight: 400;
}

/* --- Introduction --- */
.intro {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
  text-align: center;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 2;
}

/* --- Timeline --- */
.timeline {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 2rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* --- Case Card --- */
.case {
  display: grid;
  grid-template-columns: 80px 1fr 40px;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid rgba(139, 115, 85, 0.2);
  border-radius: 2px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.case:hover,
.case:focus-visible {
  border-color: var(--accent-gold);
  box-shadow: 0 0 30px var(--accent-glow);
  outline: none;
}

.case__year {
  font-family: var(--font-latin);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-amber);
  text-align: center;
}

.case__body {
  min-width: 0;
}

.case__title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.case__name {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--accent-gold);
  margin-bottom: 0.3rem;
}

.case__desc {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.case__arrow {
  font-size: 1.5rem;
  color: var(--accent-gold);
  opacity: 0.4;
  transition: opacity 0.3s ease, transform 0.3s ease;
  text-align: center;
}

.case:hover .case__arrow {
  opacity: 1;
  transform: translateX(4px);
}

/* --- Footer --- */
.footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid rgba(139, 115, 85, 0.15);
}

.footer__source {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.footer__meta {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--accent-gold);
}

.footer__meta a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer__meta a:hover {
  color: var(--text-primary);
}

/* --- Responsive --- */
@media (max-width: 480px) {
  .case {
    grid-template-columns: 60px 1fr 30px;
    padding: 1.2rem 1rem;
    gap: 1rem;
  }

  .case__year {
    font-size: 1.2rem;
  }

  .case__title {
    font-size: 1.1rem;
  }
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

:focus-visible {
  outline: 2px solid var(--accent-amber);
  outline-offset: 2px;
}