/* NERV Heroines Webtoon — dark crimson reader theme */

:root {
  --nerv-ink: #0B0608;
  --nerv-ink-soft: #18090B;
  --nerv-bone: #F4F0EA;
  --nerv-crimson: #D0021B;
  --nerv-blood: #7A0A17;
  --nerv-amber: #E8A33D;
  --nerv-mute: #6d6560;
  --nerv-panel: #140a0c;
  --nerv-line: #2a1518;
  --font-sans: "Pretendard", "Apple SD Gothic Neo", "Noto Sans CJK KR",
               "Malgun Gothic", -apple-system, system-ui, sans-serif;
  --radius: 8px;
  --shadow-card: 0 4px 16px rgba(0,0,0,0.5), 0 1px 0 rgba(232,163,61,0.12);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--nerv-ink);
  color: var(--nerv-bone);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image:
    radial-gradient(ellipse at 50% -10%, rgba(208,2,27,0.22) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 110%, rgba(122,10,23,0.35) 0%, transparent 65%);
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--nerv-amber); }

/* ─── Header ─── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  border-bottom: 2px solid var(--nerv-crimson);
  background: linear-gradient(180deg, var(--nerv-ink-soft) 0%, var(--nerv-ink) 100%);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(1.2);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}
.brand-logo {
  font-size: 20px;
  color: var(--nerv-crimson);
  letter-spacing: 0.32em;
}
.brand-title {
  font-size: 14px;
  letter-spacing: 0.28em;
  color: var(--nerv-amber);
}
.site-nav {
  display: flex;
  gap: 16px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.site-nav a {
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 4px;
  transition: border-color 0.15s, background 0.15s;
}
.site-nav a:hover {
  border-color: var(--nerv-crimson);
  background: rgba(208,2,27,0.08);
}

.site-main {
  flex: 1;
  padding: 24px 16px 48px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ─── Hero ─── */
.hero { text-align: center; padding: 24px 8px 16px; }
.hero-title {
  margin: 0 0 6px;
  font-size: 32px;
  letter-spacing: 0.12em;
  color: var(--nerv-bone);
  text-shadow: 0 2px 0 rgba(0,0,0,0.4);
}
.hero-sub {
  margin: 0 0 18px;
  color: var(--nerv-amber);
  font-size: 14px;
  letter-spacing: 0.06em;
}
.hero-sub strong { color: var(--nerv-bone); }

/* Sort toggle */
.sort-toggle {
  display: inline-flex;
  gap: 0;
  padding: 4px;
  background: var(--nerv-panel);
  border: 1px solid var(--nerv-line);
  border-radius: var(--radius);
}
.sort-btn {
  background: transparent;
  color: var(--nerv-mute);
  border: none;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
  font-family: inherit;
}
.sort-btn:hover { color: var(--nerv-bone); }
.sort-btn.active {
  background: var(--nerv-crimson);
  color: var(--nerv-ink);
  box-shadow: 0 0 12px rgba(208,2,27,0.45);
}

/* ─── Episode Grid (index) ─── */
.episode-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 28px;
}
@media (max-width: 960px) { .episode-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .episode-grid { grid-template-columns: 1fr; } }

.ep-card {
  display: flex;
  flex-direction: column;
  background: var(--nerv-panel);
  border: 1px solid var(--nerv-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  color: inherit;
}
.ep-card:hover {
  transform: translateY(-2px);
  border-color: var(--nerv-crimson);
  box-shadow: var(--shadow-card);
  color: inherit;
}

.ep-thumb {
  position: relative;
  aspect-ratio: 2 / 3;         /* 1024x1536 */
  overflow: hidden;
  background: var(--nerv-ink);
}
.ep-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.ep-thumb-missing {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--nerv-mute);
  font-size: 14px;
}
.ep-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 4px 10px;
  background: rgba(11,6,8,0.88);
  border: 1.5px solid var(--nerv-crimson);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: var(--nerv-bone);
}

.ep-info {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ep-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--nerv-bone);
}
.ep-synopsis {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--nerv-mute);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ep-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.ep-date {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--nerv-amber);
  font-weight: 700;
}
.ep-cast {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* Cast chip */
.cast-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(20,10,12,0.8);
  border: 1px solid var(--chip-color, var(--nerv-mute));
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--nerv-bone);
}
.cast-chip .chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--chip-color, var(--nerv-mute));
  display: inline-block;
}

/* ─── Episode Reader ─── */
.episode-reader {
  max-width: 860px;
  margin: 0 auto;
}
.reader-header {
  padding: 16px 8px 20px;
  border-bottom: 1px solid var(--nerv-line);
  margin-bottom: 20px;
}
.back-link {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--nerv-amber);
  border: 1px solid var(--nerv-line);
  border-radius: 4px;
  margin-bottom: 12px;
}
.back-link:hover { border-color: var(--nerv-amber); }
.reader-title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.ep-badge-lg {
  padding: 6px 12px;
  background: var(--nerv-crimson);
  color: var(--nerv-ink);
  border-radius: 4px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.2em;
}
.reader-title {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  color: var(--nerv-bone);
  line-height: 1.3;
}
.reader-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.reader-date {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--nerv-amber);
  font-weight: 700;
}
.reader-cast { display: flex; flex-wrap: wrap; gap: 6px; }
.reader-synopsis {
  margin: 12px 0 0;
  color: var(--nerv-bone);
  font-size: 14px;
  line-height: 1.6;
  font-style: italic;
  opacity: 0.85;
}

.reader-canvas {
  display: flex;
  justify-content: center;
  padding: 8px 0;
}
.reader-strip {
  width: 100%;
  max-width: 1024px;
  height: auto;
  border: 1px solid var(--nerv-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  display: block;
}
.reader-missing {
  padding: 40px;
  text-align: center;
  color: var(--nerv-mute);
  background: var(--nerv-panel);
  border: 1px dashed var(--nerv-line);
  border-radius: var(--radius);
}

/* Reader nav */
.reader-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  margin-top: 28px;
  padding: 16px 0 8px;
  border-top: 1px solid var(--nerv-line);
}
.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  background: var(--nerv-panel);
  border: 1px solid var(--nerv-line);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--nerv-bone);
  gap: 6px;
  transition: border-color 0.15s, background 0.15s;
}
.nav-btn:hover {
  border-color: var(--nerv-crimson);
  background: rgba(208,2,27,0.10);
  color: var(--nerv-bone);
}
.nav-btn.nav-disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}
.nav-prev { justify-self: start; }
.nav-home { justify-self: center; min-width: 80px; }
.nav-next { justify-self: end; }
.nav-num {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--nerv-amber);
  font-weight: 900;
  margin-left: 8px;
  margin-right: 8px;
}

/* ─── Footer ─── */
.site-footer {
  padding: 20px 24px 32px;
  border-top: 1px solid var(--nerv-line);
  background: var(--nerv-ink-soft);
  text-align: center;
}
.footer-line {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-brand {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.44em;
  color: var(--nerv-crimson);
}
.footer-meta {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--nerv-mute);
}
.footer-meta-small {
  margin-top: 6px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--nerv-mute);
  opacity: 0.7;
}