:root,
[data-theme="dark"] {
  --bg: #000000;
  --surface: #0c0c0c;
  --surface-hover: #141414;
  --border: #262626;
  --border-strong: #404040;
  --text: #ffffff;
  --text-muted: #888888;
  --text-dim: #555555;
  --tag-bg: transparent;
  --tag-live-border: #404040;
  --header-border: #262626;
  --metric-divider: #262626;
  --loader-track: #404040;
  --loader-fill: #ffffff;
  --theme-btn-bg: #141414;
  --theme-btn-border: #333333;
}

[data-theme="light"] {
  --bg: #f5f5f5;
  --surface: #ffffff;
  --surface-hover: #fafafa;
  --border: #e5e5e5;
  --border-strong: #d4d4d4;
  --text: #0a0a0a;
  --text-muted: #737373;
  --text-dim: #a3a3a3;
  --tag-bg: #ffffff;
  --tag-live-border: #0a0a0a;
  --header-border: #e5e5e5;
  --metric-divider: #e5e5e5;
  --loader-track: #d4d4d4;
  --loader-fill: #0a0a0a;
  --theme-btn-bg: #ffffff;
  --theme-btn-border: #e5e5e5;
}

:root {
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s ease, color 0.2s ease;
}

.hidden {
  display: none !important;
}

#app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 16px 20px calc(28px + var(--safe-bottom));
}

.screen {
  min-height: calc(100vh - 44px);
  animation: appear 0.2s ease;
}

.screen--center {
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes appear {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Toolbar + theme */
.toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid var(--theme-btn-border);
  border-radius: 8px;
  background: var(--theme-btn-bg);
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.theme-btn:active {
  opacity: 0.75;
}

.theme-btn-icon {
  font-size: 14px;
  line-height: 1;
}

/* Typography */
.label {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.display {
  margin: 0;
  font-size: 36px;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.display--sm {
  font-size: 28px;
}

.section-title {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

[data-theme="light"] .section-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--text);
}

.body {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
}

.caption {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.5;
}

.muted {
  color: var(--text-muted);
}

/* Loader */
.loader-line {
  width: 48px;
  height: 1px;
  background: var(--loader-track);
  position: relative;
  overflow: hidden;
  margin-bottom: 16px;
}

.loader-line::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 40%;
  background: var(--loader-fill);
  animation: loadSlide 1s ease-in-out infinite;
}

@keyframes loadSlide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* Panels */
.panel {
  width: 100%;
  padding: 24px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 0;
}

[data-theme="light"] .panel {
  border-radius: 12px;
}

.panel--narrow {
  max-width: 340px;
}

/* Headers per theme */
.page-header {
  margin-bottom: 28px;
}

.page-header--dark {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--header-border);
}

.page-header--dark .body {
  margin-top: 8px;
}

.page-header--light .wordmark {
  margin: 0 0 4px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.page-header--light .subtitle {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--text-muted);
}

.profile-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  flex-shrink: 0;
}

.profile-name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.profile-handle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* Metrics (dark theme) */
.metrics {
  display: flex;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--header-border);
}

.metric {
  flex: 1;
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.metric-label {
  display: block;
  margin-top: 6px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.metric-divider {
  width: 1px;
  height: 32px;
  background: var(--metric-divider);
  flex-shrink: 0;
}

[data-theme="light"] .metrics {
  display: none;
}

/* Block */
.block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}

.count {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

[data-theme="light"] .count {
  display: none;
}

/* ── V1 Dark: step list ── */
[data-theme="dark"] #releases-list {
  display: flex;
  flex-direction: column;
}

.step-card {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: start;
  width: 100%;
  padding: 20px 0;
  border: none;
  border-top: 1px solid var(--border);
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease;
}

.step-card:last-child {
  border-bottom: 1px solid var(--border);
}

.step-card:active {
  background: var(--surface-hover);
}

.step-num {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding-top: 2px;
  font-variant-numeric: tabular-nums;
}

.step-body {
  min-width: 0;
}

.step-title {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.step-artist {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--text-muted);
}

.step-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.step-id,
.step-date {
  font-size: 12px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.step-arrow {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1;
  padding-top: 2px;
}

/* ── V2 Light: release cards ── */
[data-theme="light"] #releases-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.release-card {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 0;
  width: 100%;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  transition: background 0.12s ease;
}

.release-card:active {
  background: var(--surface-hover);
}

.card-index {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 20px 0 0 16px;
  font-size: 32px;
  font-weight: 300;
  letter-spacing: -0.04em;
  color: var(--text-dim);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.card-main {
  padding: 16px 16px 16px 0;
  min-width: 0;
}

.card-title {
  margin: 0 0 2px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.card-artist {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--text-muted);
}

.card-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 12px;
}

.card-footer {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}

.card-field-label {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.card-field-value {
  display: block;
  font-size: 13px;
  font-weight: 500;
}

.card-field--date {
  border-left: 1px solid var(--border);
  padding-left: 12px;
}

/* Tags */
.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--border);
  background: var(--tag-bg);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  line-height: 1.3;
  white-space: nowrap;
}

[data-theme="light"] .tag {
  border-radius: 6px;
  font-size: 12px;
  padding: 6px 12px;
}

.tag--live {
  border-color: var(--tag-live-border);
  color: var(--text);
}

.tag--warn {
  color: var(--text-muted);
}

.tag--dim {
  color: var(--text-dim);
  border-color: transparent;
  padding-left: 0;
}

[data-theme="light"] .tag--dim {
  padding: 4px 10px;
  border: 1px solid var(--border);
}

/* Empty */
.empty {
  text-align: left;
}

/* Detail */
.detail {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg);
  overflow-y: auto;
  animation: appear 0.2s ease;
}

.detail-header {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 16px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.text-btn {
  border: none;
  background: none;
  padding: 0;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
}

.text-btn:active {
  color: var(--text);
}

.detail-body {
  padding: 28px 20px calc(32px + var(--safe-bottom));
  max-width: 480px;
  margin: 0 auto;
}

.detail-label {
  margin: 0 0 16px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.detail-title {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.15;
}

[data-theme="light"] .detail-title {
  font-size: 32px;
}

.detail-sub {
  margin: 0 0 20px;
  font-size: 14px;
  color: var(--text-muted);
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.data-list {
  display: flex;
  flex-direction: column;
}

.data-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.data-row:first-child {
  border-top: 1px solid var(--border);
}

.data-row dt {
  margin: 0;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-muted);
}

.data-row dd {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  text-align: right;
  line-height: 1.45;
}

.notice {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 0;
}

[data-theme="light"] .notice {
  border-radius: 12px;
}

.notice-label {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.notice p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-muted);
}

/* Theme-specific header visibility */
[data-theme="dark"] .page-header--light {
  display: none !important;
}

[data-theme="light"] .page-header--dark {
  display: none !important;
}

[data-theme="light"] .page-header--light {
  display: block !important;
}