:root {
  color-scheme: light dark;
  --bg: light-dark(#f6f7f9, #10151b);
  --surface: light-dark(#fff, #1b232c);
  --surface-alt: light-dark(#eceff3, #27313c);
  --text: light-dark(#1f2933, #dfe6ec);
  --text-strong: light-dark(#111827, #f2f6fa);
  --text-body: light-dark(#374151, #c7d1da);
  --text-muted: light-dark(#5f6b7a, #94a2b0);
  --text-disabled: light-dark(#8a95a3, #6b7885);
  --border: light-dark(#d7dde5, #333f4c);
  --border-soft: light-dark(#c8d0da, #3c4956);
  --primary: light-dark(#2f6f73, #56b0b5);
  --primary-contrast: light-dark(#fff, #0d1418);
  --accent-bg: light-dark(#e7f2f2, #16383a);
  --accent-border: light-dark(#b8d7d8, #2e5a5d);
  --accent-text: light-dark(#205c60, #a5dade);
  --danger: light-dark(#b42318, #ff8177);
  --alert-bg: light-dark(#fff7d6, #3a300f);
  --alert-border: light-dark(#e2b84c, #8a6d1f);
  --alert-accent: light-dark(#b7791f, #d9a94a);
  --alert-text: light-dark(#5f3b00, #f0d9a0);
  --badge-upcoming-bg: light-dark(#e8f1ff, #17293f);
  --badge-upcoming-text: light-dark(#1b4f9c, #8fbcf5);
  --badge-live-bg: light-dark(#ffe8e8, #421c1c);
  --badge-live-text: light-dark(#a22626, #ff9d94);
  --platform-youtube-border: light-dark(#ffd2d2, #5a2a2a);
  --platform-youtube-text: light-dark(#9f1d1d, #ff9d94);
  --platform-twitch-border: light-dark(#ddd0ff, #40356a);
  --platform-twitch-text: light-dark(#5b35a1, #c3aef7);
  --hint-soon-bg: light-dark(#fff3cf, #3a2f10);
  --hint-soon-text: light-dark(#8a5200, #e8c069);
  --hint-soon-border: light-dark(#e5bd55, #8a6d1f);
  --hint-catchup-bg: light-dark(#dff8eb, #143723);
  --hint-catchup-text: light-dark(#126b3f, #7dd6a3);
  --hint-catchup-border: light-dark(#7bc89d, #2e7a4f);
  color: var(--text);
  background: var(--bg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Explicit user choice overrides the OS preference; light-dark() follows
   the effective color-scheme. */
:root[data-theme="light"] {
  color-scheme: light;
}

:root[data-theme="dark"] {
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

.page {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

p {
  margin: 8px 0 0;
  color: var(--text-muted);
}

.userline {
  font-size: 13px;
}

.button {
  background: var(--primary-contrast);
  border: 1px solid var(--primary);
  border-radius: 8px;
  color: var(--primary);
  cursor: pointer;
  font: inherit;
  padding: 8px 12px;
  text-decoration: none;
  white-space: nowrap;
}

.button.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.button.compact {
  padding: 4px 8px;
}

.button.disabled {
  border-color: var(--border-soft);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.button:disabled {
  border-color: var(--border-soft);
  color: var(--text-disabled);
  cursor: wait;
  opacity: 0.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

/* On desktop the wrapper is transparent to the flex row; on mobile it
   collapses behind the account toggle button. */
.account-actions {
  display: contents;
}

.account-toggle {
  display: none;
}

.oauth-consent-note {
  color: var(--text-muted);
  flex-basis: 100%;
  font-size: 11px;
  margin: 0;
  text-align: right;
}

.oauth-consent-note a {
  color: var(--primary);
}

.sync-message {
  min-height: 20px;
  margin: 0 0 12px;
}

.sync-message-alert {
  background: var(--alert-bg);
  border: 1px solid var(--alert-border);
  border-left: 4px solid var(--alert-accent);
  border-radius: 8px;
  color: var(--alert-text);
  font-weight: 700;
  padding: 10px 12px;
}

.sync-overview {
  background: var(--primary-contrast);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0 0 12px;
}

.sync-overview summary {
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 12px;
  padding: 5px 12px;
}

.sync-overview summary::-webkit-details-marker {
  display: none;
}

.sync-overview summary::before {
  content: "▸";
}

.sync-overview[open] summary::before {
  content: "▾";
}

.sync-overview-mode {
  color: var(--text-strong);
  font-weight: 700;
}

.sync-overview-error {
  border-left: 4px solid var(--danger);
}

.sync-overview-badge {
  color: var(--danger);
  font-weight: 700;
}

.sync-overview-body {
  padding: 2px 12px 10px;
}

.sync-overview-note {
  color: var(--text-muted);
  font-size: 12px;
  margin: 0 0 8px;
}

.sync-overview-caveat {
  margin: 8px 0 0;
}

.sync-status-panel {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
}

.sync-status-card {
  background: var(--primary-contrast);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 10px;
}

.sync-status-card strong,
.sync-status-card span {
  display: block;
}

.sync-status-card strong {
  font-size: 13px;
}

.sync-status-card span,
.sync-status-card p {
  color: var(--text-muted);
  font-size: 12px;
}

.sync-status-card p {
  margin: 0;
}

.sync-status-success {
  border-left: 4px solid var(--primary);
}

.sync-status-error {
  border-left: 4px solid var(--danger);
}

.sync-error {
  color: var(--danger) !important;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.legal-links {
  display: flex;
  gap: 12px;
  margin: -8px 0 16px;
}

.legal-links a,
.document a {
  color: var(--primary);
}

.google-data-use-note {
  color: var(--text-muted);
  font-size: 12px;
  margin: -8px 0 16px;
  max-width: 760px;
}

.tool-form {
  align-items: end;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tool-form.stacked {
  align-items: stretch;
  display: grid;
}

.tool-form label {
  color: var(--text-body);
  display: grid;
  font-size: 13px;
  gap: 4px;
}

.tool-form input,
.tool-form select {
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  min-height: 38px;
  padding: 7px 10px;
  width: 100%;
}

.tool-form input[type="search"] {
  margin-bottom: 4px;
}

.field-help {
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.4;
}

.list-tool-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--primary-contrast);
  padding: 8px 10px;
}

.list-tool-panel summary {
  color: var(--text-body);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}

.list-tool-panel[open] summary {
  margin-bottom: 10px;
}

.channel-picker {
  display: grid;
  gap: 4px;
}

.field-label {
  color: var(--text-body);
  font-size: 13px;
}

.channel-option-list {
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  gap: 2px;
  max-height: 240px;
  overflow-y: auto;
  padding: 6px;
}

.channel-option {
  align-items: center;
  border-radius: 6px;
  color: var(--text-body);
  display: grid;
  font-size: 13px;
  gap: 8px;
  grid-template-columns: 14px minmax(0, 1fr);
  line-height: 1.35;
  padding: 5px 6px;
}

.channel-option:hover {
  background: var(--surface-alt);
}

.channel-option.is-filtered {
  display: none;
}

.channel-option input {
  height: 14px;
  margin: 0;
  width: 14px;
}

.channel-option span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.schedule {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.app-layout {
  align-items: start;
  display: grid;
  gap: 22px;
  grid-template-columns: 240px minmax(0, 1fr);
}

.sidebar {
  border-right: 1px solid var(--border);
  display: grid;
  gap: 18px;
  padding-right: 18px;
}

.sidebar-toggle {
  display: none;
}

.list-nav,
.list-tools {
  display: grid;
  gap: 8px;
}

.list-actions {
  display: grid;
  gap: 8px;
}

.list-danger-panel .button {
  margin-top: 10px;
  width: 100%;
}

.selected-list-channels {
  background: var(--primary-contrast);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.selected-list-channels summary {
  color: var(--text-body);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
}

.selected-list-channels[open] summary {
  margin-bottom: 8px;
}

.selected-list-channels ul {
  display: grid;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.selected-list-channels li {
  align-items: center;
  display: grid;
  gap: 6px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.selected-list-channels span {
  color: var(--text-body);
  font-size: 13px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.list-link {
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-body);
  padding: 8px 10px;
  text-decoration: none;
}

.list-link.active {
  background: var(--accent-bg);
  border-color: var(--accent-border);
  color: var(--accent-text);
  font-weight: 700;
}

.content {
  min-width: 0;
}

.switchers {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
}

.schedule-controls {
  display: grid;
  gap: 10px;
}

.tabs {
  display: flex;
  gap: 8px;
  margin: 0 0 16px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.tabs.centered {
  justify-content: center;
  margin: 0;
}

.sort-controls {
  align-items: end;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.sort-toggle {
  display: none;
}

.sort-controls label {
  color: var(--text-body);
  display: grid;
  font-size: 13px;
  gap: 4px;
}

.sort-controls select {
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  min-height: 38px;
  padding: 7px 10px;
}

.tab {
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-body);
  padding: 8px 12px;
  text-decoration: none;
  white-space: nowrap;
}

.tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-contrast);
}

.tab.disabled {
  background: var(--surface-alt);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.program-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--primary-contrast);
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 10px;
}

.program-card-catch-up {
  border-color: var(--hint-catchup-border);
  box-shadow: 0 0 0 2px var(--hint-catchup-bg);
}

.program-card-soon {
  border-color: var(--hint-soon-border);
  box-shadow: 0 0 0 2px var(--hint-soon-bg);
}

.thumbnail {
  aspect-ratio: 16 / 9;
  background: var(--surface-alt);
  border-radius: 8px;
  color: var(--text-muted);
  display: block;
  overflow: hidden;
  text-decoration: none;
  width: 100%;
}

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

.thumbnail-placeholder {
  align-items: center;
  display: flex;
  font-size: 32px;
  font-weight: 700;
  height: 100%;
  justify-content: center;
  width: 100%;
}

.program-card-body {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.program-card-topline {
  align-items: center;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

.time {
  color: var(--text-strong);
  font-size: 20px;
  font-weight: 700;
}

.meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 4px;
}

.watch-cues {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.badge {
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 700;
}

.badge-upcoming {
  background: var(--badge-upcoming-bg);
  color: var(--badge-upcoming-text);
}

.badge-live {
  background: var(--badge-live-bg);
  color: var(--badge-live-text);
}

.badge-none {
  background: var(--surface-alt);
  color: var(--text-muted);
}

.platform {
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-body);
  font-size: 12px;
  font-weight: 700;
  padding: 1px 6px;
}

.platform-youtube {
  border-color: var(--platform-youtube-border);
  color: var(--platform-youtube-text);
}

.platform-twitch {
  border-color: var(--platform-twitch-border);
  color: var(--platform-twitch-text);
}

.entry-hint {
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
}

.entry-hint-soon {
  background: var(--hint-soon-bg);
  color: var(--hint-soon-text);
}

.entry-hint-catch-up {
  background: var(--hint-catchup-bg);
  color: var(--hint-catchup-text);
}

.timing-hint {
  background: var(--surface-alt);
  border-radius: 999px;
  color: var(--text-body);
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
}

.title {
  color: var(--text-strong);
  font-weight: 700;
  text-decoration: none;
}

.title:hover {
  text-decoration: underline;
}

.empty {
  border: 1px dashed var(--border-soft);
  border-radius: 8px;
  color: var(--text-muted);
  padding: 28px;
  text-align: center;
}

.document {
  max-width: 820px;
}

.document section {
  background: var(--primary-contrast);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0 0 12px;
  padding: 18px;
}

.document h2 {
  font-size: 18px;
  margin: 0 0 8px;
}

.document ul {
  color: var(--text-body);
  margin: 8px 0 0;
  padding-left: 22px;
}

.document li {
  margin: 4px 0;
}

.license-table {
  border-collapse: collapse;
  font-size: 13px;
  margin-top: 8px;
  width: 100%;
}

.license-table th,
.license-table td {
  border-bottom: 1px solid var(--border);
  padding: 6px 8px;
  text-align: left;
}

.license-table a {
  color: var(--primary);
}

.document-note {
  font-size: 13px;
}

@media (max-width: 640px) {
  .page {
    padding: 16px;
  }

  .header {
    align-items: flex-start;
    flex-direction: column;
  }

  .actions {
    justify-content: flex-start;
  }

  .schedule {
    grid-template-columns: 1fr;
  }

  .sync-status-panel {
    grid-template-columns: 1fr;
  }

  .app-layout {
    grid-template-columns: 1fr;
  }

  .account-toggle {
    display: inline-block;
  }

  .account-actions {
    display: none;
  }

  .account-actions.account-open {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
  }

  .oauth-consent-note {
    text-align: left;
  }

  .sidebar-toggle {
    display: block;
    margin: 0 0 12px;
    width: 100%;
  }

  /* Collapsed by default so the schedule is visible without scrolling;
     the toggle button above reveals the lists/tools when needed. */
  .sidebar {
    display: none;
  }

  .sidebar.sidebar-open {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    display: grid;
    padding: 0 0 16px;
  }

  /* Tabs become full-width segmented controls so each row lines up cleanly. */
  .tabs {
    gap: 6px;
  }

  .tab {
    flex: 1;
    padding: 8px 4px;
    text-align: center;
  }

  .sort-toggle {
    display: block;
    width: 100%;
  }

  .schedule-controls {
    display: none;
  }

  .schedule-controls.controls-open {
    display: grid;
  }

  /* Sort controls when open: two selects side by side, the wide ライブ中
     select and the apply button each take the full row. */
  .sort-controls {
    display: grid;
    gap: 8px 10px;
    grid-template-columns: 1fr 1fr;
  }

  .sort-controls label:nth-of-type(3),
  .sort-controls .button {
    grid-column: 1 / -1;
  }

  .sort-controls .button {
    width: 100%;
  }

  /* The long ライブ中 option text otherwise widens the select past the
     viewport and forces the whole page to overflow horizontally. */
  .sort-controls label {
    min-width: 0;
  }

  .sort-controls select {
    width: 100%;
  }
}