:root {
  --user-bg: #0f1418;
  --user-bg-soft: #161d22;
  --user-panel: rgba(23, 31, 37, 0.92);
  --user-panel-soft: rgba(255, 255, 255, 0.04);
  --user-line: rgba(255, 255, 255, 0.08);
  --user-line-strong: rgba(255, 255, 255, 0.16);
  --user-ink: #f7f1e6;
  --user-muted: #c0b6a4;
  --user-accent: #de6d3a;
  --user-accent-soft: rgba(222, 109, 58, 0.14);
  --user-highlight: #62c0b0;
  --user-highlight-soft: rgba(98, 192, 176, 0.14);
  --user-good: #4ed18b;
  --user-warn: #f2b75f;
  --user-bad: #ff7b7b;
  --user-shadow: 0 28px 68px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(222, 109, 58, 0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(98, 192, 176, 0.08), transparent 24%),
    linear-gradient(180deg, #0c1115 0%, #11181d 100%);
  color: var(--user-ink);
  font-family: "IBM Plex Sans", sans-serif;
}

a,
button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.user-shell {
  max-width: 1520px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  gap: 18px;
}

.user-topbar {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 18px;
  align-items: start;
}

.brand-lockup {
  text-decoration: none;
  color: inherit;
}

.brand-kicker,
.section-kicker,
.session-kicker {
  display: block;
  color: var(--user-highlight);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.brand-name {
  display: block;
  margin-top: 8px;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 0.9;
}

.brand-copy {
  margin: 10px 0 0;
  max-width: 48ch;
  color: var(--user-muted);
  line-height: 1.55;
}

.primary-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-self: center;
}

.nav-pill,
.solid-button,
.ghost-button,
.bookmark-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
}

.nav-pill,
.ghost-button,
.bookmark-chip {
  border: 1px solid var(--user-line);
  color: var(--user-ink);
  background: rgba(255, 255, 255, 0.04);
}

.nav-pill.is-active,
.admin-link {
  background: rgba(255, 255, 255, 0.1);
}

.solid-button {
  border: 0;
  background: var(--user-accent);
  color: white;
}

.ghost-button.small,
.solid-button.small,
.bookmark-chip {
  padding: 8px 12px;
  font-size: 0.9rem;
}

.session-panel,
.hero-panel,
.panel-section,
.empty-state,
.series-card,
.stack-card,
.reader-toolbar,
.reader-sidebar,
.reader-stage {
  border: 1px solid var(--user-line);
  background: var(--user-panel);
  border-radius: 24px;
  box-shadow: var(--user-shadow);
}

.session-panel {
  padding: 18px;
  display: grid;
  gap: 6px;
  min-width: 280px;
}

.session-panel span {
  color: var(--user-muted);
  line-height: 1.45;
}

.session-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.flash-banner {
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--user-line);
}

.flash-banner.good {
  background: rgba(78, 209, 139, 0.16);
  color: var(--user-good);
}

.flash-banner.bad {
  background: rgba(255, 123, 123, 0.16);
  color: var(--user-bad);
}

.flash-banner.warn {
  background: rgba(242, 183, 95, 0.16);
  color: var(--user-warn);
}

.user-stage {
  display: grid;
  gap: 20px;
}

.hero-panel {
  padding: 28px;
  display: grid;
  grid-template-columns: 1.3fr auto;
  gap: 18px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--hero-accent, var(--user-accent)) 42%, transparent), transparent 40%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
}

.hero-copy h1,
.detail-copy h1 {
  margin: 10px 0 12px;
  font-family: "Literata", serif;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  line-height: 0.92;
  max-width: 12ch;
}

.hero-copy p,
.detail-copy p,
.stack-card p,
.empty-state p {
  margin: 0;
  color: var(--user-muted);
  line-height: 1.6;
}

.hero-actions,
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-meta,
.detail-meta {
  display: grid;
  gap: 12px;
  align-content: end;
}

.hero-meta span,
.detail-meta span {
  color: var(--user-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-meta strong,
.detail-meta strong {
  display: block;
  font-size: 1.05rem;
}

.library-shelf,
.panel-section {
  display: grid;
  gap: 18px;
}

.panel-section,
.library-shelf {
  padding: 22px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
}

.section-head h2,
.reader-toolbar h2 {
  margin: 6px 0 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.4rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.series-card {
  min-height: 280px;
  overflow: hidden;
  background:
    linear-gradient(160deg, color-mix(in srgb, var(--accent) 46%, #101519) 0%, #12191f 64%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent);
}

.series-card-link {
  height: 100%;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  color: inherit;
  text-decoration: none;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.44) 100%);
}

.series-card-kicker {
  color: rgba(255, 255, 255, 0.72);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
}

.series-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.4rem;
}

.series-card p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.45;
}

.progress-pill {
  margin-top: 14px;
  align-self: start;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 0.82rem;
}

.content-grid.two-up {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.stack-list,
.chapter-list {
  display: grid;
  gap: 12px;
}

.stack-card,
.chapter-row {
  padding: 16px;
  display: grid;
  gap: 6px;
}

.chapter-row {
  text-decoration: none;
  color: inherit;
  grid-template-columns: 1fr auto;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--user-line);
  border-radius: 18px;
}

.stack-card span,
.chapter-row span,
.reader-side-copy {
  color: var(--user-muted);
}

.filter-bar,
.request-form {
  display: grid;
  gap: 12px;
}

.filter-bar {
  grid-template-columns: minmax(0, 1fr) 180px auto;
}

.filter-bar input,
.filter-bar select,
.request-form input,
.request-form select,
.request-form textarea,
.reader-controls select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--user-line-strong);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--user-ink);
}

.request-form textarea {
  min-height: 140px;
  resize: vertical;
}

.detail-hero {
  display: grid;
  grid-template-columns: 1.3fr auto;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--user-line);
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--detail-accent, var(--user-accent)) 44%, transparent), transparent 38%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--user-line);
  color: var(--user-muted);
  font-size: 0.84rem;
}

.empty-state {
  padding: 22px;
}

.reader-shell {
  display: grid;
  gap: 16px;
}

.reader-toolbar {
  padding: 18px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.reader-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: end;
}

.reader-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 16px;
}

.reader-sidebar,
.reader-stage {
  padding: 18px;
}

.reader-sidebar {
  display: grid;
  align-content: start;
  gap: 16px;
}

.reader-meta {
  display: grid;
  gap: 6px;
}

.bookmark-list,
.reader-nav-links {
  display: grid;
  gap: 10px;
}

.bookmark-chip.is-active {
  background: var(--user-highlight-soft);
  color: var(--user-highlight);
}

.reader-page-stage {
  min-height: 70vh;
}

.paged-reader,
.webtoon-reader {
  display: grid;
  justify-items: center;
  gap: 16px;
}

.reader-page-image {
  width: 100%;
  max-width: 1100px;
  border-radius: 22px;
  border: 1px solid var(--user-line);
  background: #11161a;
}

.reader-page-stage[data-fit="contain"] .reader-page-image {
  max-height: 78vh;
  width: auto;
}

.reader-page-stage[data-fit="height"] .reader-page-image {
  max-height: 90vh;
  width: auto;
}

.reader-page-stage[data-fit="width"] .reader-page-image {
  width: 100%;
}

.webtoon-reader {
  max-height: 82vh;
  overflow: auto;
  padding-right: 8px;
}

@media (max-width: 1180px) {
  .user-topbar,
  .hero-panel,
  .detail-hero,
  .content-grid.two-up,
  .reader-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .user-shell {
    padding: 16px;
  }

  .primary-nav,
  .reader-controls,
  .hero-actions,
  .detail-actions,
  .session-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-bar {
    grid-template-columns: 1fr;
  }
}