:root {
  --bg: #071018;
  --bg2: #0d1824;
  --panel: rgba(14, 22, 34, 0.88);
  --panel-strong: rgba(18, 29, 44, 0.94);
  --line: rgba(88, 143, 210, 0.22);
  --line-strong: rgba(88, 143, 210, 0.48);
  --text: #d8e2ee;
  --muted: #8d9bad;
  --accent: #4b7ec2;
  --accent-2: #78a7e0;
  --shadow: rgba(0, 0, 0, 0.42);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  line-height: 1.85;
  background:
    radial-gradient(circle at top left, rgba(75,126,194,0.12), transparent 28%),
    linear-gradient(180deg, #061019 0%, #09131d 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 120px,
      rgba(255,255,255,0.015) 121px
    ),
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 120px,
      rgba(255,255,255,0.012) 121px
    );
  opacity: 0.4;
}

.back-link,
.footer-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.back-link:hover,
.footer-link:hover {
  color: var(--accent-2);
}

.back-link {
  display: inline-block;
  margin: 22px 0 0 24px;
}

.page-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 16px auto 80px;
}

.hero,
.overview-card,
.entry-card,
.stub-card,
.notes-box {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: 0 14px 34px var(--shadow);
  backdrop-filter: blur(5px);
}

.hero {
  padding: 34px 32px 28px;
  margin-bottom: 22px;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.hero-label {
  color: var(--accent-2);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.hero-title {
  margin: 0 0 10px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.2;
}

.hero-sub {
  margin: 0;
  color: var(--text);
  font-size: 15px;
}

.hero-badge {
  min-width: 220px;
  padding: 16px 18px;
  background: linear-gradient(180deg, rgba(75,126,194,0.16), rgba(75,126,194,0.05));
  border: 1px solid var(--line-strong);
  text-align: right;
}

.hero-badge .jp {
  color: var(--text);
  font-size: 13px;
  margin-bottom: 4px;
}

.hero-badge .en {
  color: var(--accent-2);
  letter-spacing: 0.18em;
  font-size: 12px;
  text-transform: uppercase;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--text);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
}

.section {
  margin-top: 22px;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.section-eyebrow {
  color: var(--accent-2);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}

.overview-grid,
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.overview-card {
  padding: 20px 18px;
}

.overview-label {
  color: var(--accent-2);
  font-size: 10px;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.overview-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.overview-card p,
.entry-desc,
.stub-desc,
.notes-box p,
.entry-meta,
.stub-meta {
  margin: 0;
}

.entry-card,
.stub-card {
  display: block;
  padding: 20px 18px;
  text-decoration: none;
  color: inherit;
  min-height: 250px;
}

.entry-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  transition: 0.2s ease;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.card-label,
.card-rank,
.stub-status {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.card-label {
  color: var(--accent-2);
}

.card-rank {
  color: var(--muted);
}

.entry-card h3,
.stub-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.entry-meta,
.stub-meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
}

.entry-desc,
.stub-desc {
  color: var(--text);
  font-size: 14px;
}

.entry-arrow,
.stub-status {
  display: inline-block;
  margin-top: 18px;
}

.entry-arrow {
  color: var(--accent-2);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.stub-card {
  background: rgba(255,255,255,0.025);
  border-style: dashed;
}

.stub-status {
  color: var(--muted);
}

.notes-box {
  padding: 18px 20px;
}

.footer-nav {
  margin-top: 24px;
}

@media (max-width: 920px) {
  .hero-top {
    flex-direction: column;
  }

  .hero-badge {
    min-width: auto;
    width: 100%;
    text-align: left;
  }

  .overview-grid,
  .entry-grid {
    grid-template-columns: 1fr;
  }
}

.stub-link-card {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.stub-link-card:hover {
  transform: translateY(-2px);
}

.stub-link-card .stub-status {
  display: inline-block;
  margin-top: 14px;
}

.stub-link-card {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.stub-link-card:hover {
  transform: translateY(-2px);
}

.stub-link-card .stub-status {
  display: inline-block;
  margin-top: 14px;
}