:root {
  --bg: #0b0b0d;
  --bg-alt: #131215;
  --card: #18171b;
  --card-hover: #201f24;
  --red: #c8203a;
  --gold: #d4af37;
  --text: #ede9e4;
  --muted: #8d8a92;
  --line: #2a292e;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans KR', sans-serif;
  min-height: 100vh;
}

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

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 11, 13, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-family: 'Black Han Sans', sans-serif;
  font-size: 26px;
  letter-spacing: 1px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  cursor: pointer;
}

.logo span {
  color: var(--red);
}

nav.tabs {
  display: flex;
  gap: 4px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-family: 'Noto Sans KR';
  font-weight: 700;
  font-size: 14px;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: .15s;
}

.tab-btn.active,
.tab-btn:hover {
  color: var(--text);
  border-bottom-color: var(--red);
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

#hero {
  position: relative;
  height: 56vh;
  min-height: 380px;
  display: flex;
  align-items: flex-end;
  margin: 0 -24px 40px;
  overflow: hidden;
  background: var(--bg-alt);
  background-size: cover;
  background-position: center top;
}

.hero-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,11,13,0) 0%, rgba(11,11,13,.55) 55%, var(--bg) 100%), linear-gradient(90deg, rgba(11,11,13,.85) 0%, rgba(11,11,13,0) 55%);
}

.hero-content {
  position: relative;
  padding: 0 48px 40px;
  max-width: 640px;
}

.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--red);
  font-weight: 700;
  margin-bottom: 10px;
}

.hero-title {
  font-family: 'Black Han Sans';
  font-size: 44px;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-overview {
  font-size: 14px;
  line-height: 1.7;
  opacity: .9;
  margin-bottom: 20px;
}

.hero-btn {
  background: var(--red);
  color: #fff;
  border: none;
  padding: 12px 26px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
}

.row-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  border-left: 4px solid var(--red);
  padding-left: 12px;
}

.row-head h2 {
  font-family: 'Black Han Sans';
  font-size: 22px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 18px;
}

.poster-card {
  cursor: pointer;
  position: relative;
  display: block;
}

.poster-frame {
  position: relative;
  aspect-ratio: 2/3;
  background: var(--card);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform .18s, border-color .18s;
}

.poster-card:hover .poster-frame {
  transform: translateY(-4px);
  border-color: var(--red);
}

.poster-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.poster-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(0,0,0,.75);
  color: var(--gold);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
}

.poster-title {
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
}

.poster-sub {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}

.back-btn {
  display: inline-block;
  background: none;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  margin: 24px 0 20px;
}

.back-btn:hover {
  color: var(--text);
  border-color: var(--red);
}

.detail-hero {
  position: relative;
  min-height: 340px;
  margin: 0 -24px 32px;
  padding: 40px 48px;
  display: flex;
  gap: 32px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.detail-hero .hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
}

.detail-hero .hero-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,11,13,0) 0%, rgba(11,11,13,.55) 55%, var(--bg) 100%), linear-gradient(90deg, rgba(11,11,13,.85) 0%, rgba(11,11,13,0) 55%);
}

.detail-poster {
  position: relative;
  width: 180px;
  flex-shrink: 0;
  border: 3px solid var(--bg);
  box-shadow: 0 8px 30px rgba(0,0,0,.6);
}

.detail-poster img {
  width: 100%;
  display: block;
}

.detail-info {
  position: relative;
  flex: 1;
  min-width: 280px;
}

.detail-eyebrow {
  color: var(--red);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.detail-title {
  font-family: 'Black Han Sans';
  font-size: 38px;
  line-height: 1.15;
  margin-bottom: 6px;
}

.detail-orig {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 14px;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  margin-bottom: 16px;
}

.detail-meta .star {
  color: var(--gold);
}

.genre-pill {
  border: 1px solid var(--line);
  padding: 4px 12px;
  font-size: 12px;
  color: var(--muted);
}

.genre-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.tagline {
  font-style: italic;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 10px;
}

.section-block {
  margin-bottom: 40px;
}

.section-block h3 {
  font-family: 'Black Han Sans';
  font-size: 20px;
  margin-bottom: 14px;
  border-left: 4px solid var(--red);
  padding-left: 12px;
}

.bio-text {
  font-size: 15px;
  line-height: 1.9;
  opacity: .92;
  max-width: 820px;
  white-space: pre-line;
}

.cast-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 16px;
}

.cast-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform .18s;
}

.cast-card-link:hover {
  transform: translateY(-4px);
}

.cast-card img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  background: var(--card);
  border: 1px solid var(--line);
}

.cast-name {
  font-size: 12px;
  font-weight: 700;
  margin-top: 6px;
}

.cast-role {
  font-size: 11px;
  color: var(--muted);
}

.trailer-wrap {
  position: relative;
  width: 100%;
  max-width: 860px;
  aspect-ratio: 16/9;
  background: var(--card);
  border: 1px solid var(--line);
}

.trailer-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.no-trailer {
  color: var(--muted);
  font-size: 14px;
  padding: 24px;
  border: 1px dashed var(--line);
  max-width: 860px;
}

.season-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 900px;
}

.season-item {
  border: 1px solid var(--line);
  background: var(--card);
}

.season-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
}

.season-head:hover {
  background: var(--card-hover);
}

.season-head img {
  width: 46px;
  height: 68px;
  object-fit: cover;
  background: var(--bg-alt);
}

.season-head .s-title {
  font-weight: 700;
  font-size: 15px;
}

.season-head .s-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.season-head .chev {
  margin-left: auto;
  color: var(--muted);
  transition: transform .15s;
}

.season-item.open .chev {
  transform: rotate(90deg);
  color: var(--red);
}

.episode-panel {
  display: none;
  border-top: 1px solid var(--line);
  padding: 8px 16px 16px;
}

.season-item.open .episode-panel {
  display: block;
}

footer {
  border-top: 1px solid var(--line);
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  max-width: 1200px;
  margin: 0 auto;
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.btn-watch {
  background: #e50914;
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.similar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 18px;
}