/*
 * Theme tokens. Accent is the unpromptedcon.org bracket blue (#6cc6f0); track tile colors
 * live in ROOM_COLORS in app.js. Glass chrome, tinted calendar tiles; dark mode adds a
 * color mesh behind the glass, light mode is a flat neutral page.
 * Light is :root, dark is html[data-theme='dark'] (the default, set by theme-init.js).
 */
:root {
  --brand-blue: #6cc6f0;
  --header-bg: #0b0d10;
  --header-text: #f5f7f9;
  --bg: #e4e9ef;
  --surface: #f8f9fb;
  --text: #111418;
  --text-secondary: #353c45;
  --text-muted: #525b66;
  --border: #c8d0d9;
  --border-strong: #a7b1bd;
  --accent: #16719d;
  --accent-hover: #136791;
  --accent-tint: rgba(22, 113, 157, 0.12);
  --accent-ring: rgba(26, 127, 176, 0.18);
  --conflict: #c41e3a;
  --conflict-bg: rgba(196, 30, 58, 0.08);
  --now: #0b6e4f;
  --now-bg: rgba(11, 110, 79, 0.1);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --font: 'Sora', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --error-bg: #fff5f5;
  --error-border: #f5c2c2;
  --error-text: #842029;
  --grid-rail-bg: rgba(244, 246, 248, 0.6);
  --grid-tile-bg: #f9fafb;
  --up-next-bg: rgba(255, 255, 255, 0.95);
  --up-next-shadow: rgba(11, 13, 16, 0.08);
  --grid-now-ring: rgba(255, 255, 255, 0.9);
  --on-accent: #ffffff;
  --tab-shadow: rgba(0, 0, 0, 0.04);
  /* Liquid glass chrome */
  --glass-bg: rgba(250, 251, 252, 0.88);
  --glass-strong: rgba(248, 249, 251, 0.92);
  --glass-border: rgba(17, 20, 24, 0.12);
  --glass-hi: rgba(255, 255, 255, 0.85);
  --glass-shadow: rgba(17, 20, 24, 0.16);
  --glass-blur: blur(20px);
  --sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0) 40%);
  /* Light: flat neutral page (no color mesh); color lives in the track-tinted tiles. */
  --page-mesh: #dfe3e8;
  --bar-bg: rgb(248, 249, 251);
  /* Calendar: solid panel, tiles tinted with their track color */
  --panel: #fbfbfc;
  --panel-line: rgba(17, 20, 24, 0.15);
  --cal-tile-mix: 26%;
  --tile-outline: 55%;
  --tile-text: #111418;
  /* Layout */
  --gutter: 10px;
  --rail-w: 2.5rem;
}

html[data-theme='dark'] {
  color-scheme: dark;
  --header-bg: #050607;
  --header-text: #e8edf2;
  --bg: #0e1114;
  --surface: #171b20;
  --text: #e8edf2;
  --text-secondary: #a9b2bc;
  --text-muted: #87909a;
  --border: #2a3038;
  --border-strong: #3b434d;
  --accent: #6cc6f0;
  --accent-hover: #9ad8f5;
  --accent-tint: rgba(108, 198, 240, 0.14);
  --accent-ring: rgba(108, 198, 240, 0.28);
  --on-accent: #0b0d10;
  --conflict: #f07188;
  --conflict-bg: rgba(240, 113, 136, 0.14);
  --now: #6ed9ae;
  --now-bg: rgba(110, 217, 174, 0.14);
  --error-bg: rgba(240, 113, 136, 0.12);
  --error-border: rgba(240, 113, 136, 0.45);
  --error-text: #ffc9d2;
  --grid-rail-bg: rgba(23, 27, 32, 0.92);
  --grid-tile-bg: #1d2228;
  --up-next-bg: rgba(23, 27, 32, 0.94);
  --up-next-shadow: rgba(0, 0, 0, 0.4);
  --grid-now-ring: rgba(14, 17, 20, 0.95);
  --tab-shadow: rgba(0, 0, 0, 0.28);
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-strong: rgba(20, 24, 34, 0.78);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-hi: rgba(255, 255, 255, 0.18);
  --glass-shadow: rgba(0, 0, 0, 0.5);
  --sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0) 45%);
  --glass-blur: blur(22px) saturate(180%);
  --page-mesh: radial-gradient(70% 50% at 10% 5%, rgba(108, 198, 240, 0.28), transparent 65%),
    radial-gradient(55% 45% at 95% 30%, rgba(240, 187, 28, 0.14), transparent 65%),
    radial-gradient(65% 50% at 20% 75%, rgba(124, 58, 237, 0.24), transparent 65%),
    radial-gradient(50% 40% at 90% 95%, rgba(13, 148, 136, 0.18), transparent 65%), #07080c;
  --bar-bg: rgb(18, 21, 28);
  --panel: #151619;
  --panel-line: rgba(255, 255, 255, 0.06);
  --cal-tile-mix: 30%;
  --tile-outline: 35%;
  --tile-text: #f2f4f7;
}

html[data-theme='dark'] .day-btn.active {
  background: var(--accent-tint);
}

/* The hidden attribute always wins over component display rules (e.g. .badge inline-flex). */
[hidden] {
  display: none !important;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100dvh;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
}
a:hover {
  color: var(--accent-hover);
}

.site-header {
  background: var(--header-bg);
  color: var(--header-text);
}

.header-inner {
  padding: 16px 20px 12px;
  text-align: center;
}

.header-logo-link {
  display: inline-block;
  line-height: 0;
}

/*
 * Wordmark: logo image + "II" in Arial Bold, as on the unpromptedcon.org hero.
 * Sizes derive from the logo width: its tallest letters span 75 of 97 px rows with the
 * baseline at row 76, so the II's cap height (0.716em) and baseline (0.8465em below the
 * line box top at line-height 1) are set to match.
 */
.header-wordmark {
  --logo-w: min(240px, 62vw);
  display: inline-flex;
  align-items: flex-start;
}

.header-logo {
  width: var(--logo-w);
  height: auto;
  display: block;
}

.header-edition {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  font-size: calc(var(--logo-w) * 0.1677);
  line-height: 1;
  margin-top: calc(var(--logo-w) * -0.0202);
  margin-left: 0.278em;
  /* Same pure white as the lettering in logo-on-dark.png. */
  color: #ffffff;
}

.subtitle {
  font-size: 0.8rem;
  font-weight: 400;
  opacity: 0.85;
  margin-top: 8px;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 0 6px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 1px 0 var(--tab-shadow);
}

.tab {
  flex: 1;
  padding: 10px 4px;
  border: none;
  background: transparent;
  font-family: var(--font);
  font-size: 0.65rem;
  line-height: 1.2;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  white-space: normal;
  hyphens: auto;
}

@media (min-width: 420px) {
  .tab {
    font-size: 0.72rem;
    padding: 12px 6px;
  }
}

.tab.active {
  color: var(--text);
}
.tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 4px;
  right: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  margin-left: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 9px;
  vertical-align: middle;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  background: var(--bg);
}

.toolbar-expand-desc {
  font-size: 0.75rem;
}

.btn-secondary {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-theme {
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  flex-shrink: 0;
}

.btn-theme:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-refresh-agenda {
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  flex-shrink: 0;
}

.btn-refresh-agenda:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-refresh-agenda:disabled {
  opacity: 0.65;
  cursor: wait;
}

.meta-updated {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: auto;
}

.content {
  padding: 0 16px 100px;
  max-width: 900px;
  margin: 0 auto;
}

.loading {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
}

.error-panel {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error-text);
  padding: 16px;
  border-radius: 8px;
  margin: 16px 0;
}

.error-panel .error-lede {
  margin-top: 8px;
  font-size: 0.85rem;
  line-height: 1.45;
}

.error-panel .error-detail {
  margin-top: 6px;
  font-size: 0.78rem;
  opacity: 0.95;
  word-break: break-word;
}

.error-panel .error-retry-wrap {
  margin-top: 14px;
}

.day-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.day-btn {
  flex: 1;
  padding: 12px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-muted);
}

.day-btn.active {
  border-color: var(--accent);
  background: var(--accent-tint);
  color: var(--text);
}

.day-btn .day-sub {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.filters-row label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.track-select {
  flex: 1;
  min-width: 160px;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  font-family: var(--font);
  font-size: 0.8rem;
  background: var(--surface);
  color: var(--text);
}

.toggle-inline {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.stats-bar {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.time-group-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 12px 0 6px;
  border-bottom: 1px solid var(--border);
  margin-top: 4px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 8px;
  transition: border-color 0.15s;
}

.card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-ring);
}

.card.conflict {
  border-color: rgba(196, 30, 58, 0.35);
  background: var(--conflict-bg);
}

.card.now {
  border-color: var(--now);
  background: var(--now-bg);
}

.card-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}

.card-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.time-24h {
  font-variant-numeric: tabular-nums;
}

.time-raw {
  font-weight: 500;
  color: var(--text-secondary);
}

.track-tag {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg);
  color: var(--text-secondary);
  margin-left: 6px;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.35;
}

.card-title-toggle {
  display: block;
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.card-title-toggle:hover {
  color: var(--accent);
}

.card-original {
  font-size: 0.75rem;
  margin-top: 6px;
  font-weight: 500;
}

.card-original a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.card-original a:hover {
  color: var(--accent-hover);
}

.card-location {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 6px;
  font-weight: 500;
}

.card-speakers {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.45;
}

.card-speakers a,
.speaker-name {
  font-weight: 500;
}

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

.card-speakers .sep {
  color: var(--text-muted);
  font-weight: 400;
}

.card-description {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

.now-pill {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--now);
  color: var(--on-accent);
  margin-left: 6px;
  vertical-align: middle;
}

.card-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-muted);
}

.icon-btn.on {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

.conflict-warn {
  font-size: 0.72rem;
  color: var(--conflict);
  margin-top: 8px;
  font-weight: 500;
}

.conflict-warn .conflict-hint {
  display: block;
  margin-top: 4px;
  font-weight: 400;
  color: var(--text-secondary);
}

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

.conflict-drop-btn {
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--conflict);
  background: var(--surface);
  color: var(--conflict);
  cursor: pointer;
  max-width: 100%;
  text-align: left;
}

.conflict-drop-btn:hover {
  background: var(--conflict-bg);
}

.empty-state {
  text-align: center;
  padding: 56px 20px;
  color: var(--text-muted);
}

.empty-state h2 {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.search-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: var(--font);
  font-size: 0.9rem;
  margin-bottom: 12px;
  background: var(--surface);
  color: var(--text);
}

.export-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.export-bar button {
  flex: 1;
  min-width: 120px;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
}

/* My picks — centered column, one visual system */
.my-picks-actions {
  width: 100%;
  max-width: 26rem;
  margin: 0 auto 28px;
  padding: 18px 16px 20px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 16px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--tab-shadow);
}

.my-picks-actions-below {
  margin-top: 32px;
  margin-bottom: 8px;
}

.my-picks-actions .export-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(6.75rem, 1fr));
  gap: 10px;
  margin-bottom: 0;
  width: 100%;
}

.my-picks-actions .export-bar button {
  flex: unset;
  min-width: 0;
  width: 100%;
}

.my-picks-actions .calendar-export {
  margin-bottom: 0;
  width: 100%;
}

.my-picks-actions .calendar-export-hint {
  margin: 0 auto 12px;
  max-width: 100%;
  text-align: center;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.mine-toolbar-btn {
  display: block;
  width: 100%;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
}

.mine-toolbar-btn:hover {
  border-color: var(--border-strong);
  background: var(--bg);
  color: var(--text);
}

html[data-theme='dark'] .mine-toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Calendar export modal — same centered card + mine-toolbar-btn system as My picks */
.calendar-export-modal-card {
  width: 100%;
  max-width: 26rem;
  margin: 0 auto;
  padding: 16px 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: stretch;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  box-shadow: var(--tab-shadow);
}

#calendar-export-body .calendar-export-modal-card .session-overlay-title,
#clear-picks-body .calendar-export-modal-card .session-overlay-title {
  text-align: center;
  margin: 0 auto 8px;
  padding: 0 40px;
  max-width: 100%;
}

#calendar-export-body .calendar-export-lede,
#clear-picks-body .calendar-export-lede {
  text-align: center;
  margin: 0 auto;
}

#calendar-export-body #cal-step-select .calendar-export-list-hint {
  text-align: center;
}

.calendar-export-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 26rem;
  margin: 0 auto;
}

.mine-toolbar-btn.mine-toolbar-btn-quiet {
  border-color: var(--border-strong);
  color: var(--text-secondary);
  background: var(--bg);
}

.mine-toolbar-btn.mine-toolbar-btn-quiet:hover {
  border-color: var(--border);
  color: var(--text);
  background: var(--surface);
}

.calendar-export {
  margin-bottom: 20px;
}

.calendar-export-hint {
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--text-muted);
  margin-bottom: 10px;
  max-width: 40rem;
}

button.btn-cal {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--surface);
}

button.btn-cal:hover {
  background: var(--accent-tint);
}

html[data-theme='dark'] button.btn-cal:hover {
  background: var(--accent-tint);
}

.calendar-export-lede {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.calendar-export-lede code {
  font-size: 0.85em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
}

.calendar-export-list-hint {
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.calendar-export-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  max-height: min(50vh, 22rem);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}

.calendar-export-list li {
  border-bottom: 1px solid var(--border);
}

.calendar-export-list li:last-child {
  border-bottom: none;
}

.calendar-export-row {
  display: grid;
  grid-template-columns: auto minmax(4.5rem, max-content) 1fr;
  gap: 8px 10px;
  align-items: start;
  padding: 10px 12px;
  cursor: pointer;
  font-size: 0.78rem;
}

.calendar-export-row input {
  margin-top: 3px;
}

.calendar-export-row-disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.calendar-export-row-meta {
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.calendar-export-row-title {
  color: var(--text);
  line-height: 1.35;
}

.calendar-export-row-note {
  grid-column: 2 / -1;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.up-next {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--up-next-bg);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-strong);
  padding: 12px 16px calc(12px + var(--safe-bottom));
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  box-shadow: 0 -4px 24px var(--up-next-shadow);
}

.up-next[hidden] {
  display: none !important;
}

.up-next-count {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 44px;
  text-align: center;
}

.up-next-body {
  flex: 1;
  min-width: 0;
}

.up-next-kicker {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
}

.up-next-title {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.toast {
  position: fixed;
  bottom: 88px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--header-bg);
  color: var(--header-text);
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Grid view: agenda-style timeline × room columns */
.grid-view-hint {
  margin-bottom: 8px;
}

.grid-skip-note {
  margin-top: 4px;
}

.grid-timeline-wrap {
  margin: 0 -16px 12px;
  padding: 0 16px;
}

.grid-timeline {
  position: relative;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: visible;
  font-size: 0.65rem;
}

.grid-timeline-header-slot {
  position: relative;
  z-index: 45;
}

/* Room row: in-flow; when pinned, JS sets .is-grid-header-pinned + fixed + top/left/width. */
.grid-timeline-header-sticky {
  position: relative;
  z-index: 40;
  box-sizing: border-box;
  min-height: 2.75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.grid-timeline-header-sticky.is-grid-header-pinned {
  position: fixed;
  z-index: 40;
  margin: 0;
  border-radius: 0;
}

html[data-theme='dark'] .grid-timeline-header-sticky {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.grid-timeline-header {
  display: flex;
  flex-direction: row;
  align-items: stretch;
}

.grid-corner {
  flex: 0 0 4.75rem;
  width: 4.75rem;
  min-width: 4.75rem;
  box-sizing: border-box;
  position: relative;
  z-index: 2;
  padding: 10px 8px 10px 4px;
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  display: flex;
  align-items: flex-end;
  border-right: 1px solid var(--border);
  background: var(--bg);
  box-shadow: 4px 0 8px -2px rgba(0, 0, 0, 0.08);
}

html[data-theme='dark'] .grid-corner {
  box-shadow: 4px 0 12px -2px rgba(0, 0, 0, 0.45);
}

.grid-room-heads-scroll {
  flex: 1;
  min-width: 0;
  /* Avoid overflow-y:visible + overflow-x:auto (both become auto) — breaks sticky header text in WebKit/Chromium. */
  overflow-x: auto;
  overflow-y: clip;
  min-height: 2.75rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.grid-room-heads-scroll::-webkit-scrollbar {
  display: none;
}

.grid-room-heads {
  display: grid;
  min-width: 0;
  min-height: 2.75rem;
  align-items: center;
}

.grid-room-head {
  box-sizing: border-box;
  padding: 10px 8px;
  text-align: center;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text);
  line-height: 1.25;
  border-right: 1px solid var(--border);
  background: var(--bg);
  min-width: 0;
}

.grid-room-head:last-child {
  border-right: none;
}

.grid-timeline-body {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  position: relative;
  z-index: 1;
}

.grid-tracks-scroll {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
}

.grid-time-rail {
  flex: 0 0 4.75rem;
  width: 4.75rem;
  min-width: 4.75rem;
  box-sizing: border-box;
  position: relative;
  z-index: 6;
  border-right: 1px solid var(--border);
  background-color: var(--grid-rail-bg);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(var(--grid-step-px, 60px) - 1px),
    var(--border) calc(var(--grid-step-px, 60px) - 1px),
    var(--border) var(--grid-step-px, 60px)
  );
  background-repeat: repeat;
  background-position-y: var(--grid-bg-y, 0px);
  box-shadow: 4px 0 8px -2px rgba(0, 0, 0, 0.08);
}

html[data-theme='dark'] .grid-time-rail {
  box-shadow: 4px 0 12px -2px rgba(0, 0, 0, 0.45);
}

.grid-tick-label {
  position: absolute;
  left: 4px;
  right: 4px;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  transform: translateY(-50%);
  pointer-events: none;
}

.grid-tracks-wrap {
  display: grid;
  position: relative;
  min-width: 0;
  background: var(--surface);
}

.grid-tracks-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 4;
}

.grid-now-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  margin-top: -1px;
  background: var(--now);
  box-shadow: 0 0 0 1px var(--grid-now-ring);
  opacity: 0.95;
}

.grid-room-track {
  position: relative;
  z-index: 1;
  border-right: 1px solid var(--border);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(var(--grid-step-px, 60px) - 1px),
    var(--border) calc(var(--grid-step-px, 60px) - 1px),
    var(--border) var(--grid-step-px, 60px)
  );
  background-repeat: repeat;
  background-position-y: var(--grid-bg-y, 0px);
}

.grid-room-track:last-child {
  border-right: none;
}

.grid-timeline-block {
  position: absolute;
  box-sizing: border-box;
  padding: 1px 2px 2px;
  z-index: 2;
  overflow: hidden;
  cursor: pointer;
}

.grid-timeline-block:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.grid-timeline-block:focus:not(:focus-visible) {
  outline: none;
}

.grid-timeline-block-inner {
  height: 100%;
  border-left: 4px solid var(--grid-accent, var(--accent));
  background: var(--grid-tile-bg);
  border-radius: 6px;
  padding: 4px 6px 6px 8px;
  box-shadow: 0 1px 2px rgba(11, 13, 16, 0.08);
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 0;
  overflow: hidden;
}

.grid-timeline-block-top {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 4px;
  flex-shrink: 0;
}

.grid-timeline-block-top .grid-timeline-time {
  min-width: 0;
  flex: 1 1 auto;
  line-height: 1.2;
  padding-top: 1px;
}

.grid-tile-pick {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  min-width: 22px;
  padding: 0;
  border-radius: 5px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  font-weight: 700;
  font-size: 0.68rem;
  line-height: 1;
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.grid-tile-pick.on {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
}

.grid-tile-pick:hover {
  border-color: var(--accent);
}

.grid-timeline-block.grid-cell-now .grid-timeline-block-inner {
  background: var(--now-bg);
  box-shadow: inset 0 0 0 1px rgba(11, 110, 79, 0.28);
}

.grid-timeline-time {
  font-size: 0.55rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.grid-cell-title {
  font-weight: 600;
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 6px;
}

.grid-timeline-block .grid-cell-title {
  margin-bottom: 4px;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  font-size: 0.68rem;
  line-height: 1.3;
}

body.overlay-open {
  overflow: hidden;
}

.session-overlay[hidden] {
  display: none !important;
}

.session-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}

@media (min-width: 640px) {
  .session-overlay {
    align-items: center;
    padding: 24px;
  }
}

.session-overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 13, 16, 0.5);
  backdrop-filter: blur(4px);
}

.session-overlay-panel {
  position: relative;
  width: 100%;
  max-width: 32rem;
  max-height: min(88dvh, 720px);
  background: var(--surface);
  border-radius: 16px 16px 0 0;
  box-shadow: 0 -8px 40px rgba(11, 13, 16, 0.18);
  display: flex;
  flex-direction: column;
  z-index: 1;
}

@media (min-width: 640px) {
  .session-overlay-panel {
    border-radius: 16px;
    max-height: min(85dvh, 720px);
  }
}

.session-overlay-close {
  position: absolute;
  top: 10px;
  right: 12px;
  z-index: 2;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.session-overlay-close:hover {
  background: var(--border);
}

.session-overlay-scroll {
  overflow-y: auto;
  padding: 20px 20px calc(24px + var(--safe-bottom));
  -webkit-overflow-scrolling: touch;
}

.session-overlay-title {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 0 44px 8px 0;
  color: var(--text);
}

.session-overlay-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 12px;
}

.session-overlay-location {
  font-size: 0.8rem;
  margin: 0 0 12px;
  color: var(--text);
}

.session-overlay-speakers {
  font-size: 0.78rem;
  margin-bottom: 14px;
}

.session-overlay-speakers strong {
  display: block;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.session-overlay-speakers p {
  margin: 0;
  line-height: 1.45;
}

.session-overlay-desc {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  margin-bottom: 16px;
}

.session-overlay-muted {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 16px;
}

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

.session-overlay-link {
  font-weight: 600;
  font-size: 0.88rem;
}

.session-overlay-pick {
  flex: 1 1 auto;
  min-width: 10rem;
}

.up-next-time {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.site-footer {
  padding: 24px 20px calc(32px + var(--safe-bottom));
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.55;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-agenda-meta {
  margin-bottom: 12px;
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Tiles that span several track columns (evening events across both stages). */
.grid-span-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
}

.grid-span-layer .grid-timeline-block {
  pointer-events: auto;
}

/* Breaks: informational rows, visually quieter than sessions. */
.card.card-break {
  background: transparent;
  border-style: dashed;
  box-shadow: none;
  padding-top: 8px;
  padding-bottom: 8px;
}

.card.card-break .card-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.card-break-cols {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.grid-timeline-break {
  cursor: default;
}

.grid-timeline-break .grid-cell-title {
  font-weight: 500;
  color: var(--text-secondary);
}

/* Overlapping picks (My picks calendar and At a Glance). */
.grid-timeline-block.grid-cell-conflict .grid-timeline-block-inner {
  box-shadow: inset 0 0 0 2px var(--conflict);
}

.mine-conflict-note {
  color: var(--conflict);
}

.day-btn.day-btn-empty {
  opacity: 0.6;
}

/* Short tiles: title beside the pick button, no time row (the rail shows the time). */
.grid-timeline-compact .grid-timeline-block-inner {
  flex-direction: row;
  align-items: center;
  gap: 6px;
  padding-top: 2px;
  padding-bottom: 2px;
}

.grid-timeline-compact .grid-cell-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 0.72rem;
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Preferences panel */
.pref-group {
  border: none;
  margin: 0 0 18px;
  padding: 0;
}

.pref-group legend {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.pref-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pref-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.88rem;
  cursor: pointer;
}

.pref-option:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-tint);
}

.pref-option input {
  accent-color: var(--accent);
}

.pref-example {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Search tab: icon only, sized to its content. */
.tab.tab-icon {
  flex: 0 0 auto;
  padding-left: 14px;
  padding-right: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

body.has-up-next {
  padding-bottom: var(--up-next-h, 0px);
}

/* ==========================================================================
 * Liquid + Tinted theme layer. Overrides the base component styles above:
 * glass chrome over the page background, solid calendar panel with tinted tiles.
 * State styles (.card.now/.selected/.conflict) keep winning on specificity.
 * ========================================================================== */
body {
  background: var(--page-mesh);
  background-attachment: fixed;
}
.toolbar,
.site-footer {
  background-color: transparent;
}

/* Page gutter (--gutter): tab pill, toolbar, day buttons, cards and calendar share one edge. */
.content {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.toolbar {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.grid-timeline-wrap {
  margin-left: calc(-1 * var(--gutter));
  margin-right: calc(-1 * var(--gutter));
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* Floating pill tab bar */
.tabs {
  /* Side margin is the content gutter so the pill lines up with the calendar. */
  margin: 8px var(--gutter) 4px;
  top: 8px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: inset 0 1px 0 var(--glass-hi), 0 10px 30px -12px var(--glass-shadow);
}

/* Glass surfaces with a specular sheen */
.card,
.day-btn,
.track-select,
.btn-theme,
.btn-refresh-agenda,
.icon-btn,
.pref-option,
.up-next,
.session-overlay-panel {
  background: var(--sheen), var(--glass-bg);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-hi), 0 10px 30px -14px var(--glass-shadow);
}
.session-overlay-panel,
.up-next {
  background: var(--sheen), var(--glass-strong);
}
.card {
  border-radius: 12px;
}
.day-btn,
.btn-theme,
.btn-refresh-agenda,
.track-select {
  border-radius: 999px;
}
.day-btn {
  border-radius: 16px;
}
.day-btn.active {
  background: var(--sheen), var(--accent-tint);
  border-color: var(--accent);
}
.card.card-break {
  background: transparent;
  box-shadow: none;
  border-style: dashed;
}

/* Time column: --rail-w fits 24-hour labels like "14:00"; 12-hour labels need more. */
html[data-time-format='12'] {
  --rail-w: 3.5rem;
}
.grid-time-rail,
.grid-corner {
  flex-basis: var(--rail-w);
  width: var(--rail-w);
  min-width: var(--rail-w);
}
.grid-corner {
  padding-left: 4px;
  padding-right: 2px;
}

/* Calendar: solid panel, tinted tiles; base half-hour lines and time rail are kept. */
.grid-timeline {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 14px;
}
.grid-timeline-header-sticky,
.grid-room-head,
.grid-corner {
  background: var(--panel);
  border-color: var(--panel-line);
}
.grid-timeline-block {
  padding: 2px 3px 3px;
}
.grid-timeline-block-inner {
  border-left: none;
  border-radius: 12px;
  background: color-mix(in srgb, var(--grid-accent) var(--cal-tile-mix), var(--panel));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--grid-accent) var(--tile-outline), transparent);
}
.grid-cell-title,
.grid-timeline-break .grid-cell-title {
  color: var(--tile-text);
}
.grid-timeline-break .grid-timeline-block-inner {
  background: color-mix(in srgb, var(--text-muted) 12%, var(--panel));
  box-shadow: inset 0 0 0 1px var(--panel-line);
}
.grid-now-line {
  height: 2px;
  background: var(--brand-blue);
  box-shadow: 0 0 10px 1px var(--brand-blue);
}
.grid-now-line::before {
  content: '';
  position: absolute;
  left: -5px;
  top: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--brand-blue);
}

/* The break tile rule above would otherwise hide the overlap outline on picked breaks. */
.grid-cell-conflict .grid-timeline-block-inner {
  box-shadow: inset 0 0 0 2px var(--conflict);
}

/* Day selector: a glass pill bar in the tab bar's style (in page flow, not sticky). */
.day-toggle {
  gap: 4px;
  padding: 4px;
  margin-bottom: 12px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: inset 0 1px 0 var(--glass-hi), 0 10px 30px -12px var(--glass-shadow);
}
.day-toggle .day-btn {
  padding: 6px 4px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  box-shadow: none;
  line-height: 1.2;
}
.day-toggle .day-btn.active {
  background: var(--sheen), var(--accent-tint);
  border-color: var(--accent);
}
.day-toggle .day-btn .day-sub {
  margin-top: 1px;
  font-size: 0.58rem;
}

/*
 * Compact day bar: replaces the day selector once it scrolls under the tabs (app.js
 * bindDaySticky). Fixed under the tab bar / "You are here" strip at --day-sticky-top.
 */
.day-sticky {
  position: fixed;
  top: var(--day-sticky-top, 60px);
  left: calc(var(--gutter) + var(--safe-left));
  right: calc(var(--gutter) + var(--safe-right));
  z-index: 46;
  display: flex;
  align-items: center;
  height: 36px;
  padding: 0 2px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: var(--glass-strong);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: inset 0 1px 0 var(--glass-hi), 0 10px 30px -12px var(--glass-shadow);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.day-sticky.is-shown {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.day-sticky-label {
  flex: 1;
  min-width: 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.day-sticky-label strong {
  color: var(--text);
  font-weight: 600;
}
.day-sticky-label .sep {
  color: var(--text-muted);
}
.day-sticky-today {
  color: var(--accent);
  font-weight: 600;
}
.day-sticky-nav {
  flex: 0 0 auto;
  width: 40px;
  height: 32px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
}
.day-sticky-nav:disabled {
  opacity: 0.25;
  cursor: default;
}

/* ---------------------------------------------------------------------------
 * iPhone sizing
 * ------------------------------------------------------------------------- */

/* Safari zooms the page when focusing a field whose text is under 16px. */
.search-input,
.track-select {
  font-size: 16px;
}

/* Status bar / notch: sticky chrome clears the safe area (home-screen app, landscape). */
.tabs {
  top: calc(8px + var(--safe-top));
  margin-left: calc(var(--gutter) + var(--safe-left));
  margin-right: calc(var(--gutter) + var(--safe-right));
}
.content,
.toolbar {
  padding-left: calc(var(--gutter) + var(--safe-left));
  padding-right: calc(var(--gutter) + var(--safe-right));
}

/* Touch targets: keep the small visuals, extend the tappable area toward Apple's 44pt. */
.grid-tile-pick,
.icon-btn {
  position: relative;
}
.grid-tile-pick::after {
  content: '';
  position: absolute;
  inset: -10px;
}
.icon-btn::after {
  content: '';
  position: absolute;
  inset: -5px;
}

/* Smallest text raised to ~10px+ for phone legibility. */
.grid-timeline-time {
  font-size: 0.65rem;
}
.grid-tick-label,
.grid-room-head {
  font-size: 0.66rem;
}
.tab {
  font-size: 0.72rem;
}

/* Tab labels stay on one line inside the pill (iPhone SE is the narrowest target). */
.tab {
  white-space: nowrap;
  padding-left: 2px;
  padding-right: 2px;
}

/* Remaining sub-10px labels. */
.grid-corner {
  font-size: 0.64rem;
}
.track-tag {
  font-size: 0.66rem;
}

/* Slimmer fixed chrome so phones keep more of the calendar on screen. */
.grid-timeline-header-sticky,
.grid-room-heads {
  min-height: 2.1rem;
}
.grid-room-head,
.grid-corner {
  padding-top: 6px;
  padding-bottom: 6px;
}
.up-next {
  padding: 8px calc(var(--gutter) + var(--safe-right)) calc(8px + var(--safe-bottom))
    calc(var(--gutter) + var(--safe-left));
}
.up-next-time {
  font-size: inherit;
  margin: 0;
}

/* iPhone SE / mini width: tab labels fit on one line without overflowing the pill. */
@media (max-width: 380px) {
  .tab-long {
    display: none;
  }
  .tab {
    font-size: 0.66rem;
    padding-left: 1px;
    padding-right: 1px;
  }
  .tab-icon {
    padding-left: 10px;
    padding-right: 10px;
  }
}

/* Pinned bars: opaque (with the glass sheen) so text never shows through. Safari's engine
   in testing let content bleed through even a 94%-opaque bar. */
.tabs,
.day-sticky,
.up-next {
  background: var(--sheen), var(--bar-bg);
}
.card-break-cols {
  white-space: nowrap;
}