:root {
  --c-bg: #0b0d16;
  --c-surface: #141827;
  --c-surface-2: #1b2033;
  --c-text: #e6e3dc;
  --c-muted: #9a9cab;
  --c-violet: #8f8cff;
  --c-lamp: #f0b45a;
  --c-string: #c8323c;
  --c-fact: #6fc39a;
  --c-theory: #f0b45a;
  --c-denied: #e2717a;
  --f-display: "Shippori Mincho B1", serif;
  --f-body: "Noto Sans JP", system-ui, sans-serif;
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-hero: clamp(2rem, 1.2rem + 3.6vw, 3.75rem);
  --space-section: clamp(3rem, 2rem + 4vw, 6rem);
  --radius: 6px;
  --dur: 200ms;
}

* { box-sizing: border-box; }
html { background: var(--c-bg); }
body {
  margin: 0;
  color: var(--c-text);
  font: var(--text-base)/1.9 var(--f-body);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(143, 140, 255, 0.12), transparent 60%),
    radial-gradient(800px 500px at 0% 30%, rgba(240, 180, 90, 0.06), transparent 60%),
    var(--c-bg);
}
a { color: var(--c-violet); }
a:hover, a:focus-visible { color: var(--c-lamp); }
:focus-visible { outline: 2px solid var(--c-lamp); outline-offset: 3px; }

.site-head {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; padding: 1rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.logo {
  font: 800 1.6rem/1 var(--f-display); letter-spacing: 0.12em;
  color: var(--c-text); text-decoration: none; display: flex; align-items: baseline; gap: 0.5rem;
}
.logo-sub { font-size: 0.75rem; letter-spacing: 0.2em; color: var(--c-string); }
.site-head nav { display: flex; gap: 1.25rem; font-size: 0.9rem; }
.site-head nav a { color: var(--c-muted); text-decoration: none; }
.site-head nav a:hover { color: var(--c-text); }

main { max-width: 1100px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }

.hero { position: relative; margin: 2rem 0 var(--space-section); }
.hero-img {
  width: 100%; height: auto; display: block; border-radius: var(--radius);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}
.hero-copy {
  position: relative; margin: -4rem 0 0 clamp(0rem, 4vw, 3rem); max-width: 34rem;
  padding: 1.5rem 1.75rem; background: rgba(20, 24, 39, 0.92);
  border-left: 3px solid var(--c-string); border-radius: var(--radius);
  backdrop-filter: blur(6px);
}
.hero-open { margin: 0; color: var(--c-muted); font-size: 0.9rem; letter-spacing: 0.1em; }
.hero h1 { margin: 0.25rem 0 0.75rem; font: 800 var(--text-hero)/1.2 var(--f-display); }
.hero-copy p:last-child { margin: 0; color: var(--c-muted); }

.list { margin-bottom: var(--space-section); }
.list h1, .list h2 { font: 800 1.6rem/1.3 var(--f-display); margin: 2rem 0 1.25rem; }
.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.card a {
  display: flex; flex-direction: column; gap: 0.5rem; height: 100%;
  padding: 1.25rem 1.35rem; text-decoration: none; color: var(--c-text);
  background: var(--c-surface); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: var(--radius);
  transition: transform var(--dur) ease, border-color var(--dur) ease;
}
.card a:hover, .card a:focus-visible { transform: translateY(-3px); border-color: var(--c-string); }
.card-pillar { font-size: 0.75rem; letter-spacing: 0.15em; color: var(--c-string); }
.card-title { font: 700 1.15rem/1.5 var(--f-display); }
.card-desc { font-size: 0.875rem; color: var(--c-muted); line-height: 1.7; }

.record { max-width: 44rem; margin: 2.5rem auto var(--space-section); }
.kicker { color: var(--c-string); font-size: 0.8rem; letter-spacing: 0.15em; margin: 0; }
.kicker span, .kicker time { color: var(--c-muted); }
.record h1 { font: 800 clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem)/1.35 var(--f-display); margin: 0.5rem 0 1rem; }
.record h2 { font: 700 1.3rem/1.4 var(--f-display); margin: 2.5rem 0 0.75rem; padding-left: 0.75rem; border-left: 3px solid var(--c-violet); }
.lead { font-size: 1.1rem; color: var(--c-text); border-bottom: 1px solid rgba(255, 255, 255, 0.08); padding-bottom: 1.25rem; }

.sort { margin-top: 3rem; padding: 1.5rem; background: var(--c-surface-2); border-radius: var(--radius); }
.sort h2 { margin-top: 0; border-left-color: var(--c-string); }
.sort-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr)); }
.sort-col h3 { font-size: 0.9rem; margin: 0 0 0.5rem; }
.sort-col ul { margin: 0; padding-left: 1.1rem; font-size: 0.9rem; line-height: 1.7; }
.fact h3 { color: var(--c-fact); }
.theory h3 { color: var(--c-theory); }
.denied h3 { color: var(--c-denied); }

.sources ul { font-size: 0.85rem; color: var(--c-muted); padding-left: 1.1rem; }
.back { margin-top: 2.5rem; }

.site-foot { text-align: center; padding: 3rem 1rem; color: var(--c-muted); font-size: 0.8rem; border-top: 1px solid rgba(255, 255, 255, 0.06); }
.foot-line { font-family: var(--f-display); font-size: 1rem; color: var(--c-text); }

@media (max-width: 640px) {
  .hero-copy { margin: -2rem 0.5rem 0; }
  .site-head nav { gap: 0.9rem; font-size: 0.8rem; }
}
@media (prefers-reduced-motion: reduce) {
  .card a { transition: none; }
}