:root {
  --primary:       #1a237e;
  --primary-light: #3949ab;
  --primary-dark:  #0d1257;
  --accent:        #0277bd;
  --accent-light:  #29b6f6;
  --success:       #2e7d32;
  --danger:        #c62828;
  --bg:            #f0f4f8;
  --bg-card:       #ffffff;
  --text:          #1a1a2e;
  --text-muted:    #5a6472;
  --text-light:    #8892a4;
  --border:        #dde3ea;
  --border-light:  #edf0f4;
  --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:     0 4px 14px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:     0 8px 28px rgba(0,0,0,.14);
  --radius:        10px;
  --radius-sm:     6px;
  --tr:            0.17s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
}

/* ── Header ─────────────────────────────────────────── */
header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,.30);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px 10px;
  gap: 16px;
  flex-wrap: wrap;
}
.header-brand h1 { font-size: 1.2rem; font-weight: 700; letter-spacing: -.01em; }
.header-brand p  { font-size: .76rem; opacity: .78; margin-top: 2px; }
.header-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.meta-pill {
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 20px;
  padding: 3px 12px;
  font-size: .73rem;
  font-weight: 500;
}

/* ── Tab Nav ─────────────────────────────────────────── */
.tab-nav {
  display: flex;
  padding: 0 20px;
  border-top: 1px solid rgba(255,255,255,.14);
}
.tab-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,.60);
  cursor: pointer;
  padding: 9px 22px;
  font-size: .88rem;
  font-weight: 600;
  border-bottom: 3px solid transparent;
  transition: all var(--tr);
  display: flex;
  align-items: center;
  gap: 7px;
  position: relative;
  bottom: -1px;
  font-family: inherit;
}
.tab-btn:hover { color: rgba(255,255,255,.90); }
.tab-btn.active { color: #fff; border-bottom-color: #fff; }
.tab-badge {
  background: rgba(255,255,255,.25);
  font-size: .68rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
  transition: background var(--tr);
}
.tab-btn.active .tab-badge { background: var(--accent-light); color: var(--primary-dark); }

/* ── Main Layout ────────────────────────────────────── */
main { max-width: 1440px; width: 100%; margin: 0 auto; padding: 24px 22px 60px; flex: 1; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Filter Bar ─────────────────────────────────────── */
.filter-bar {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 18px;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 130px; }
.filter-group.search { flex: 2; min-width: 200px; }
.filter-group label {
  font-size: .70rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-light);
}
.filter-group input,
.filter-group select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  font-size: .86rem;
  font-family: inherit;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color var(--tr), background var(--tr);
  width: 100%;
}
.filter-group input:focus,
.filter-group select:focus { border-color: var(--primary-light); background: #fff; }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  cursor: pointer;
  border: none;
  border-radius: var(--radius-sm);
  padding: 7px 15px;
  font-size: .82rem;
  font-weight: 600;
  font-family: inherit;
  transition: all var(--tr);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.btn-ghost   { background: var(--bg); color: var(--text-muted); border: 1.5px solid var(--border); }
.btn-ghost:hover   { background: var(--border-light); color: var(--text); }
.btn-primary { background: var(--primary-light); color: #fff; }
.btn-primary:hover { background: var(--primary); }
.btn-saved   { background: #e3f2fd; color: var(--accent); border: 1.5px solid #bbdefb; }
.btn-saved:hover { background: #ffebee; color: var(--danger); border-color: #ffcdd2; }
.btn-danger  { background: #ffebee; color: var(--danger); border: 1.5px solid #ffcdd2; }
.btn-danger:hover { background: #ffcdd2; }

/* ── Results Info ────────────────────────────────────── */
.results-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.results-count { font-size: .86rem; color: var(--text-muted); font-weight: 500; }
.results-count strong { color: var(--text); }

/* ── Events Grid ─────────────────────────────────────── */
.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(355px, 1fr));
  gap: 14px;
}

/* ── Event Card ──────────────────────────────────────── */
.event-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 15px 17px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: box-shadow var(--tr), border-color var(--tr), transform var(--tr);
}
.event-card:hover { box-shadow: var(--shadow-md); border-color: #b0bec5; transform: translateY(-1px); }
.event-card.saved { border-color: var(--accent); background: linear-gradient(160deg, #fff 60%, #e8f4fc 100%); }

.card-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.card-header-left { flex: 1; min-width: 0; }

.badges-row { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 6px; }
.badge {
  font-size: .66rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}
.badge-workshop { background: #e3f2fd; color: #0d47a1; }
.badge-tutorial { background: #f3e5f5; color: #6a1b9a; }
.badge-am  { background: #e8f5e9; color: #1b5e20; }
.badge-pm  { background: #fff8e1; color: #e65100; }
.badge-fd  { background: #fce4ec; color: #880e4f; }

.save-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.15rem;
  padding: 2px 3px;
  border-radius: 5px;
  line-height: 1;
  transition: transform var(--tr), color var(--tr);
  flex-shrink: 0;
  color: var(--text-light);
}
.save-icon-btn:hover { transform: scale(1.2); color: var(--accent); }
.save-icon-btn.saved { color: var(--accent); }

.card-title {
  font-size: .94rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
}
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: .79rem;
  color: var(--text-muted);
}
.track-tag {
  display: inline-block;
  font-size: .68rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  color: var(--text-muted);
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.organizers {
  font-size: .77rem;
  color: var(--text-light);
  font-style: italic;
  line-height: 1.4;
}
.card-summary {
  font-size: .81rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
}
.card-link {
  font-size: .78rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.card-link:hover { text-decoration: underline; }

/* ── Empty / Loading States ──────────────────────────── */
.empty-state {
  text-align: center;
  padding: 56px 24px;
  color: var(--text-light);
}
.empty-state .empty-icon { font-size: 2.8rem; margin-bottom: 14px; }
.empty-state h3 { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 6px; }
.empty-state p  { font-size: .85rem; line-height: 1.6; }
.empty-state code {
  background: #eee;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: .82rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.spinner {
  width: 34px; height: 34px;
  border: 3px solid var(--border);
  border-top-color: var(--primary-light);
  border-radius: 50%;
  animation: spin .75s linear infinite;
  margin: 0 auto 14px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Schedule Tab ────────────────────────────────────── */
.schedule-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}
.schedule-header h2 { font-size: 1.05rem; font-weight: 700; color: var(--text); }
.schedule-controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.view-toggle {
  display: flex;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.view-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 16px;
  font-size: .83rem;
  font-weight: 600;
  font-family: inherit;
  color: var(--text-muted);
  transition: all var(--tr);
}
.view-btn.active { background: var(--primary-light); color: #fff; }

/* ── List View ───────────────────────────────────────── */
.schedule-day { margin-bottom: 30px; }
.day-header { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.day-label { font-size: .98rem; font-weight: 700; color: var(--primary); }
.day-count {
  font-size: .75rem;
  color: var(--text-light);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2px 9px;
}
.list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(355px, 1fr));
  gap: 12px;
}

/* ── Calendar View ───────────────────────────────────── */
.calendar-wrap { overflow-x: auto; }
.calendar-grid {
  display: grid;
  grid-template-columns: 110px 1fr 1fr;
  min-width: 640px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  gap: 1px;
  background: var(--border);
}

/* Header row */
.cal-head {
  background: var(--primary);
  color: #fff;
  padding: 12px 14px;
  font-size: .84rem;
  font-weight: 700;
  text-align: center;
}
.cal-head.corner { background: var(--primary-dark); font-size: .75rem; }

/* Time-slot label */
.cal-time {
  background: var(--primary-dark);
  color: rgba(255,255,255,.92);
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-align: center;
}
.cal-time .slot-name { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.cal-time .slot-time { font-size: .66rem; opacity: .70; }

/* Calendar cells */
.cal-cell {
  background: var(--bg-card);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-height: 80px;
}
.cal-cell.am { background: #f8fffc; }
.cal-cell.pm { background: #fffcf5; }
/* FD cell: row layout so full-day cards sit as tall columns side by side */
.cal-cell.fd { background: #fdf8ff; flex-direction: row; flex-wrap: wrap; align-items: stretch; gap: 8px; }

.cal-empty { display: flex; align-items: center; justify-content: center; color: var(--border); font-size: 1.2rem; flex: 1; }

.conflict-bar {
  font-size: .68rem;
  color: #e65100;
  font-weight: 700;
  background: #fff3e0;
  border: 1px solid #ffcc80;
  border-radius: 4px;
  padding: 3px 8px;
}

/* Calendar event cards */
/* HD (half-day) card: full-width horizontal strip inside column-flex AM/PM cell */
.cal-ev {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 8px 10px 7px;
  position: relative;
  transition: box-shadow var(--tr), transform var(--tr);
}
.cal-ev:hover { box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.cal-ev.tutorial-ev { border-left-color: #9c27b0; }
/* FD card: tall narrow column inside row-flex fd cell — grows to share width equally */
.cal-ev.fd-ev { flex: 1 1 140px; min-width: 0; border-left-color: #7b1fa2; display: flex; flex-direction: column; }
.cal-ev.fd-ev .cal-ev-title { flex: 1; }
.fd-badge { background: #7b1fa2; color: #fff; font-size: .60rem; font-weight: 700; padding: 1px 6px; border-radius: 4px; letter-spacing: .03em; }

.cal-ev-title {
  font-size: .76rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 5px;
  padding-right: 18px;
}
.cal-ev-meta { display: flex; gap: 5px; flex-wrap: wrap; align-items: center; }
.room-pill {
  background: var(--primary);
  color: #fff;
  font-size: .62rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
}
/* ── Room pill button ─────────────────────────────── */
.room-pill-btn {
  background: none; border: none; cursor: pointer;
  font-size: inherit; color: inherit;
  padding: 0; font-family: inherit;
  display: inline-flex; align-items: center; gap: 4px;
  transition: color var(--tr); vertical-align: middle;
}
.room-pill-btn:not(.no-map):hover { color: var(--accent); text-decoration: underline; }
.room-pill-btn.no-map { cursor: default; }
/* Calendar room pill used as a button */
.room-pill.room-pill-btn { cursor: pointer; }
.room-pill.room-pill-btn.no-map { cursor: default; }
.room-pill.room-pill-btn:not(.no-map):hover { opacity: .82; text-decoration: none; }
/* ── Floor Map Modal ──────────────────────────────── */
#map-modal {
  position: fixed; inset: 0; z-index: 400;
  background: rgba(0,0,0,.55); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
#map-modal-container {
  background: var(--bg-card); border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: min(92vw, 820px); max-height: 90vh;
  display: flex; flex-direction: column; overflow: hidden;
}
#map-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  gap: 12px; flex-shrink: 0;
}
.map-modal-label-text { font-weight: 700; font-size: 1rem; color: var(--text); }
#map-modal-close {
  background: none; border: none; cursor: pointer;
  font-size: 1.2rem; color: var(--text-muted);
  padding: 4px 8px; border-radius: 4px; line-height: 1;
  transition: color var(--tr), background var(--tr);
}
#map-modal-close:hover { color: var(--danger); background: rgba(198,40,40,.08); }
#map-modal-body { overflow: auto; flex: 1; min-height: 0; }
#map-modal-image-wrap { position: relative; display: inline-block; min-width: 100%; }
#map-modal-img { display: block; width: 100%; height: auto; }
#map-modal-canvas { position: absolute; top: 0; left: 0; pointer-events: none; }
.cal-ev-track {
  font-size: .62rem;
  color: var(--text-light);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.unsave-cal-btn {
  position: absolute;
  top: 5px;
  right: 5px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: .78rem;
  color: #ccc;
  padding: 0;
  line-height: 1;
  opacity: 0;
  transition: opacity var(--tr), color var(--tr);
}
.cal-ev:hover .unsave-cal-btn { opacity: 1; color: var(--danger); }
.cal-item:hover .unsave-cal-btn { opacity: 1; color: var(--danger); }

/* Day navigator */
.cal-day-nav { display: flex; gap: 8px; margin-bottom: 12px; }
.cal-day-btn {
  flex: 1;
  padding: 9px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  cursor: pointer;
  font-size: .84rem;
  font-weight: 600;
  color: var(--text-light);
  transition: all var(--tr);
}
.cal-day-btn:hover { border-color: var(--primary-light); color: var(--primary-light); }
.cal-day-btn.active { border-color: var(--primary-light); background: var(--primary-light); color: #fff; }

/* ── Calendar Agenda Refresh ───────────────────────── */
.cal-overview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}
.cal-overview-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 11px;
  font-size: .76rem;
  color: var(--text-muted);
}
.cal-overview-pill strong { color: var(--text); font-weight: 700; }
.cal-overview-pill.warn {
  border-color: #ffcc80;
  background: #fff8eb;
  color: #b45309;
}

.cal-lanes-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.cal-lane {
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cal-lane-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 8px;
  margin-bottom: 2px;
}
.cal-lane-head h3 {
  font-size: .86rem;
  color: var(--primary);
  font-weight: 700;
}
.cal-lane-head p {
  font-size: .69rem;
  color: var(--text-light);
  margin-top: 1px;
}
.cal-lane-count {
  min-width: 24px;
  text-align: center;
  font-size: .72rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
}
.cal-lane-count.warn {
  background: #fff3e0;
  border-color: #ffcc80;
  color: #b45309;
}
.cal-lane-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cal-lane-empty {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 14px 10px;
  text-align: center;
  color: var(--text-light);
  font-size: .76rem;
  margin-top: 2px;
}

.cal-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 8px 10px;
  position: relative;
  cursor: pointer;
  transition: box-shadow var(--tr), transform var(--tr), border-color var(--tr);
}
.cal-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.cal-item.tutorial-item { border-left-color: #9c27b0; }
.cal-item-top {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.cal-item-index {
  min-width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .64rem;
  font-weight: 700;
  color: var(--text-light);
  background: var(--bg);
}
.cal-item-slot {
  font-size: .62rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 700;
}
.cal-item-title {
  font-size: .77rem;
  color: var(--text);
  font-weight: 700;
  line-height: 1.36;
  margin-bottom: 7px;
  padding-right: 20px;
}
.cal-item-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
}
.cal-item-track {
  font-size: .62rem;
  color: var(--text-light);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  max-width: 150px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cal-details-btn {
  margin-left: auto;
  font-size: .68rem;
  padding: 3px 8px;
}

/* ── Toast ───────────────────────────────────────────── */
#toast-box {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: none;
}
.toast {
  background: #2a2a3a;
  color: #fff;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: .84rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: tIn .22s ease, tOut .3s ease 2.4s forwards;
}
.toast.t-saved   { background: var(--success); }
.toast.t-removed { background: #546e7a; }
@keyframes tIn  { from { opacity:0; transform: translateY(10px); } to { opacity:1; transform: none; } }
@keyframes tOut { to   { opacity:0; transform: translateY(10px); } }

/* ── Modal ───────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: backdropIn .20s ease;
}
@keyframes backdropIn  { from { opacity:0; }              to { opacity:1; } }
@keyframes backdropOut { to   { opacity:0; } }
@keyframes modalIn  { from { opacity:0; transform: translateY(28px) scale(.97); } to { opacity:1; transform: none; } }
@keyframes modalOut { to   { opacity:0; transform: translateY(16px) scale(.98); } }

.modal-backdrop.closing  { animation: backdropOut .20s ease forwards; }

.modal-container {
  background: var(--bg-card);
  border-radius: var(--radius);
  max-width: 760px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  position: relative;
  display: flex;
  flex-direction: column;
  animation: modalIn .22s cubic-bezier(.22,.61,.36,1);
}
.modal-container.closing { animation: modalOut .18s ease forwards; }

.modal-header {
  position: sticky;
  top: 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  z-index: 1;
  border-radius: var(--radius) var(--radius) 0 0;
  flex-shrink: 0;
}
.modal-header-text  { flex: 1; min-width: 0; }
.modal-title        { font-size: 1.05rem; font-weight: 700; line-height: 1.35; word-break: break-word; }
.modal-subtitle     { font-size: .76rem; opacity: .78; margin-top: 3px; }
.modal-close {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 50%;
  width: 30px; height: 30px;
  cursor: pointer;
  font-size: 1rem;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: background var(--tr);
  font-family: inherit;
  line-height: 1;
}
.modal-close:hover { background: rgba(255,255,255,.32); }

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}
.modal-meta-row   { display: flex; flex-wrap: wrap; gap: 8px; }
.modal-meta-item  {
  display: flex; align-items: center; gap: 5px;
  font-size: .83rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 5px 11px; color: var(--text-muted); font-weight: 500;
}
.modal-section-label {
  font-size: .68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .08em; color: var(--text-light); margin-bottom: 6px;
}
.modal-section-text           { font-size: .88rem; color: var(--text-muted); line-height: 1.65; }
.modal-section-text.organizers-text { font-style: italic; }

.modal-program-wrap {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.modal-program-text {
  font-size: .83rem; color: var(--text);
  word-break: break-word; line-height: 1.65;
}
.modal-program-text p  { margin: .4em 0; }
.modal-program-text strong { font-weight: 600; }
.modal-program-text em { font-style: italic; color: var(--text-muted); }
.modal-program-text table {
  width: 100%; border-collapse: collapse; margin: .5em 0;
}
.modal-program-text th, .modal-program-text td {
  border: 1px solid var(--border); padding: 5px 10px; text-align: left;
  vertical-align: top; overflow: hidden;
}
.modal-program-text th {
  background: var(--bg); font-weight: 600; color: var(--text-muted);
}
.modal-program-text tr:nth-child(even) td { background: var(--border-light); }
html.dark-mode .modal-program-text th { background: #1a1d2e; }
html.dark-mode .modal-program-text tr:nth-child(even) td { background: #1e2133; }
.modal-program-unavailable { font-size: .85rem; color: var(--text-light); font-style: italic; }
.modal-program-source {
  font-size: .70rem; color: var(--text-light); margin-top: 10px;
  display: flex; align-items: center; gap: 5px;
}
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-light);
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; flex-wrap: wrap;
  background: var(--bg);
  border-radius: 0 0 var(--radius) var(--radius);
  flex-shrink: 0;
}

/* ── Swipe Mode ─────────────────────────────────────── */
#swipe-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0 32px;
  gap: 18px;
}
.swipe-progress {
  font-size: .82rem;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: .02em;
}
.swipe-deck {
  position: relative;
  width: min(420px, calc(100vw - 32px));
  height: 480px;
  touch-action: none;
  overflow: hidden;
  border-radius: 18px;
}
.swipe-card {
  position: absolute;
  inset: 0;
  background: var(--bg-card);
  border-radius: 18px;
  border: 1.5px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 22px 22px 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  will-change: transform;
}
.swipe-card-back  { transform: scale(0.94) translateY(14px); z-index: 1; pointer-events: none; }
.swipe-card-front { z-index: 2; cursor: grab; user-select: none; -webkit-user-select: none; }
.swipe-card-front:active { cursor: grabbing; }
.swipe-card.saved-glow { border-color: var(--accent); background: linear-gradient(160deg,#fff 60%,#e8f4fc 100%); }
.swipe-saved-indicator {
  font-size: .72rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(2,119,189,.10);
  border: 1px solid rgba(2,119,189,.28);
  border-radius: var(--radius-sm);
  padding: 2px 9px;
  white-space: nowrap;
  flex-shrink: 0;
}
.swipe-color-overlay {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  z-index: 10;
  background: transparent;
}
.swipe-card-title { font-size: 1.02rem; font-weight: 700; line-height: 1.35; color: var(--text); flex-shrink: 0; }
.swipe-card-body  { flex: 1; overflow: hidden; font-size: .83rem; color: var(--text-muted); line-height: 1.55; }
.swipe-card-foot  { font-size: .76rem; color: var(--text-light); border-top: 1px solid var(--border-light); padding-top: 8px; flex-shrink: 0; }
.swipe-actions { display: flex; align-items: center; justify-content: center; gap: 18px; }
.swipe-btn {
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .14s, box-shadow .14s;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  font-family: inherit;
}
.swipe-btn:hover:not(:disabled)  { transform: scale(1.12); box-shadow: var(--shadow-md); }
.swipe-btn:active:not(:disabled) { transform: scale(.93); }
.swipe-btn:disabled { opacity: .3; cursor: default; }
.swipe-btn-undo { width: 42px; height: 42px; font-size: .9rem;  background: var(--bg-card); color: var(--text-muted); border: 1.5px solid var(--border); }
.swipe-btn-skip { width: 62px; height: 62px; font-size: 1.5rem; background: #fff0f0; color: #dc2626; border: 2px solid #fecaca; }
.swipe-btn-info { width: 48px; height: 48px; font-size: 1.05rem; background: #eff6ff; color: var(--accent); border: 2px solid #bfdbfe; }
.swipe-btn-save { width: 62px; height: 62px; font-size: 1.5rem; background: #f0fdf4; color: #16a34a; border: 2px solid #bbf7d0; }
.swipe-btn-save.saved { background: #dcfce7; color: #15803d; border-color: #86efac; }
.swipe-hint { font-size: .72rem; color: var(--text-light); text-align: center; padding: 0 12px; }
.swipe-done-card {
  position: absolute; inset: 0; border-radius: 18px;
  background: var(--bg-card); border: 1.5px solid var(--border);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; color: var(--text-muted);
}
.swipe-done-card .done-icon { font-size: 3rem; }
.swipe-done-card h3 { font-size: 1.1rem; color: var(--text); font-weight: 700; }

/* ── Modal Nav Arrows ─────────────────────────────────── */
.modal-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,.90);
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--primary);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--tr), transform var(--tr), opacity var(--tr);
  z-index: 201;
  line-height: 1;
}
.modal-nav-btn:hover:not(:disabled) { background: #fff; transform: translateY(-50%) scale(1.1); }
.modal-nav-btn:disabled { opacity: .22; cursor: default; pointer-events: none; }
#modal-prev { left: 14px; }
#modal-next { right: 14px; }
.modal-nav-counter {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  font-size: .72rem;
  font-weight: 600;
  color: rgba(255,255,255,.65);
  pointer-events: none;
  white-space: nowrap;
}
@media (max-width: 860px) {
  #modal-prev { left: 4px; }
  #modal-next { right: 4px; }
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 600px) {
  .header-top { flex-direction: column; align-items: flex-start; }
  main { padding: 14px 12px 48px; }
  .events-grid, .list-grid { grid-template-columns: 1fr; }
  .filter-group { min-width: unset; }
  .cal-lanes-grid { grid-template-columns: 1fr; }

  /* Timeline: narrower label column, hide details button, label cell is tappable */
  :root { --tl-label-w: 110px; }
  .tl-event-name { font-size: .72rem; }
  .details-btn { display: none !important; }
  .tl-row[data-id] .tl-label-cell { cursor: pointer; }
  .tl-row[data-id]:active .tl-label-cell { background: var(--bg); }

  /* Collapsible filter bar: strip padding, show toggle button */
  .filter-bar { padding: 0; background: transparent; border: none; box-shadow: none; }
  .filter-toggle-btn { display: flex !important; border-radius: var(--radius); }
  .filter-row {
    display: none;
    flex-direction: column;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    padding: 14px 16px 16px;
    margin-top: -4px;
    box-shadow: var(--shadow-sm);
  }
  .filter-row.open { display: flex; }

  /* Program compact button */
  .program-compact-btn { display: inline-flex !important; }

  /* Make program table natural-width so it can scroll without cell overflow */
  .modal-program-wrap { overflow-x: auto; }
  .modal-program-text table { width: max-content; min-width: 100%; }
}

/* ── Dark Mode ───────────────────────────────────────── */
html.dark-mode {
  --bg:           #0f1117;
  --bg-card:      #1a1d2e;
  --text:         #e8eaf6;
  --text-muted:   #9ca3af;
  --text-light:   #6b7280;
  --border:       #2d3148;
  --border-light: #1e2138;
  --shadow-sm:    0 1px 3px rgba(0,0,0,.40), 0 1px 2px rgba(0,0,0,.20);
  --shadow-md:    0 4px 14px rgba(0,0,0,.50), 0 2px 4px rgba(0,0,0,.30);
  --shadow-lg:    0 8px 28px rgba(0,0,0,.65);
}
html.dark-mode .filter-group input,
html.dark-mode .filter-group select { background: #23263a; color: var(--text); border-color: var(--border); }
html.dark-mode .filter-group input:focus,
html.dark-mode .filter-group select:focus { background: #1a1d2e; }
html.dark-mode .btn-ghost { background: #1a1d2e; border-color: var(--border); color: var(--text-muted); }
html.dark-mode .btn-ghost:hover { background: #23263a; color: var(--text); }
html.dark-mode .btn-saved { background: #1a2a38; border-color: #2d4a6a; color: var(--accent-light); }
html.dark-mode .btn-danger { background: #2a1a1a; border-color: #4a2222; color: #f87171; }
html.dark-mode .event-card { background: var(--bg-card); }
html.dark-mode .event-card:hover { border-color: #404570; }
html.dark-mode .event-card.saved { background: linear-gradient(160deg, #1a1d2e 60%, #1a2a38 100%); }
html.dark-mode .track-tag { background: #23263a; color: var(--text-light); border-color: var(--border); }
html.dark-mode .filter-bar,
html.dark-mode .modal-container { background: var(--bg-card); }
html.dark-mode .modal-footer { background: #14172a; border-color: var(--border-light); }
html.dark-mode .modal-meta-item { background: #23263a; border-color: var(--border); }
html.dark-mode .modal-program-wrap { background: #23263a; border-color: var(--border); border-left-color: var(--accent); }
html.dark-mode .modal-program-text { color: var(--text); }
html.dark-mode .view-toggle { background: var(--bg-card); border-color: var(--border); }
html.dark-mode .view-btn { color: var(--text-muted); }
html.dark-mode .cal-cell { background: var(--bg-card); }
html.dark-mode .cal-cell.am { background: #141b1e; }
html.dark-mode .cal-cell.pm { background: #1b190e; }
html.dark-mode .cal-cell.fd { background: #1a1428; }
html.dark-mode .cal-ev { background: #23263a; border-color: #2d3148; }
html.dark-mode .swipe-card,
html.dark-mode .swipe-done-card { background: var(--bg-card); border-color: var(--border); }
html.dark-mode .swipe-saved-indicator { color: var(--accent-light); background: rgba(41,182,246,.12); border-color: rgba(41,182,246,.30); }
html.dark-mode .empty-state code { background: #23263a; color: var(--text-muted); }
html.dark-mode .toast { background: #2d3148; }
html.dark-mode .day-label { color: var(--accent-light); }
html.dark-mode .day-count { background: #23263a; border-color: var(--border); }
html.dark-mode .cal-day-btn { background: var(--bg-card); border-color: var(--border); color: var(--text-muted); }
html.dark-mode .cal-day-btn.active { background: var(--primary-light); border-color: var(--primary-light); color: #fff; }
html.dark-mode .cal-day-btn:hover:not(.active) { border-color: var(--accent-light); color: var(--accent-light); background: var(--bg-card); }
html.dark-mode .cal-overview-pill { background: var(--bg-card); border-color: var(--border); color: var(--text-muted); }
html.dark-mode .cal-overview-pill.warn { background: #2d2510; border-color: #6f4e1e; color: #fbbf24; }
html.dark-mode .cal-lane { background: var(--bg-card); border-color: var(--border); }
html.dark-mode .cal-lane-head h3 { color: var(--accent-light); }
html.dark-mode .cal-item { background: #23263a; border-color: #2d3148; }
html.dark-mode .cal-item-index { background: #1a1d2e; border-color: #2d3148; }
html.dark-mode .cal-lane-empty { border-color: var(--border); }
html.dark-mode .cal-lane-count.warn { background: #3a2a12; border-color: #6f4e1e; color: #fbbf24; }
html.dark-mode .badge-workshop { background: #1a2a4a; color: #90caf9; }
html.dark-mode .badge-tutorial { background: #2d1a3d; color: #ce93d8; }
html.dark-mode .badge-am       { background: #1a2d1a; color: #81c784; }
html.dark-mode .badge-pm       { background: #2d2510; color: #ffb74d; }
html.dark-mode .badge-fd       { background: #2d1a26; color: #f48fb1; }

/* ── Hide Utilities ──────────────────────────────────── */
body.hide-organizers .organizers,
body.hide-organizers .organizers-text,
body.hide-organizers #modal-organizers-wrap { display: none !important; }
body.hide-about .card-summary,
body.hide-about #modal-summary-wrap { display: none !important; }

/* ── Toggle Switch ───────────────────────────────────── */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 42px; height: 24px;
  flex-shrink: 0;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--border);
  border-radius: 24px;
  cursor: pointer;
  transition: background .2s;
}
.toggle-slider::before {
  content: ''; position: absolute;
  height: 18px; width: 18px;
  left: 3px; top: 3px;
  background: #fff; border-radius: 50%;
  transition: transform .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,.25);
}
.toggle-switch input:checked + .toggle-slider { background: var(--primary-light); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ── Report Issue Button ─────────────────────────────── */
.btn-report {
  background: rgba(255,87,87,.22);
  border: 1.5px solid rgba(255,87,87,.65);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: .76rem; font-weight: 700;
  color: #fff; cursor: pointer; text-decoration: none;
  transition: background var(--tr), border-color var(--tr), box-shadow var(--tr);
  font-family: inherit;
  display: inline-flex; align-items: center; gap: 5px;
  margin-left: 4px;
  box-shadow: 0 0 0 1px rgba(255,87,87,.18);
}
.btn-report:hover {
  background: rgba(255,87,87,.38);
  border-color: rgba(255,87,87,.9);
  box-shadow: 0 0 0 3px rgba(255,87,87,.18);
}

/* ── Settings Tab Panel ─────────────────────────────── */
#tab-settings { padding-top: 8px; }
.settings-card {
  max-width: 540px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.settings-card-header {
  padding: 18px 24px 14px;
  border-bottom: 1px solid var(--border-light);
}
.settings-card-title { font-size: 1rem; font-weight: 700; color: var(--text); }
.settings-card-subtitle { font-size: .76rem; color: var(--text-light); margin-top: 3px; }
.settings-card-body { padding: 0 24px; }
.settings-row {
  display: flex; align-items: center;
  justify-content: space-between; gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-info { flex: 1; min-width: 0; }
.settings-row-label { font-size: .9rem; font-weight: 600; color: var(--text); }
.settings-row-desc  { font-size: .76rem; color: var(--text-light); margin-top: 2px; }
#settings-refresh-btn .btn-spinner {
  width: 13px; height: 13px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff; border-radius: 50%;
  animation: spin .6s linear infinite; display: none;
}
#settings-refresh-btn.loading .btn-spinner  { display: inline-block; }
#settings-refresh-btn.loading .btn-refresh-icon { display: none; }

/* ── Theme Selector ──────────────────────────────────── */
.theme-selector {
  display: flex;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}
.theme-btn {
  background: none; border: none;
  cursor: pointer; padding: 6px 11px;
  font-size: .78rem; font-weight: 600;
  font-family: inherit; color: var(--text-muted);
  transition: all var(--tr); white-space: nowrap;
}
.theme-btn + .theme-btn { border-left: 1px solid var(--border); }
.theme-btn:hover:not(.active) { color: var(--text); background: var(--border-light); }
.theme-btn.active { background: var(--primary-light); color: #fff; }

/* ── Time no-wrap (in program tables) ───────────────── */
.time-nowrap { white-space: nowrap; }

/* ── Share / Import Panel ────────────────────────────── */
.settings-row-share { border-bottom: none; }
.share-btns { display: flex; gap: 8px; flex-shrink: 0; }
.share-action-btn { font-size: .82rem; }
.share-panel {
  padding: 14px 0 4px;
  border-top: 1px solid var(--border-light);
}
.share-qr-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 14px;
}
.share-qr-wrap img, .share-qr-wrap canvas {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  background: #fff;
  display: block;
}
.share-url-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.share-url-input {
  flex: 1; min-width: 0;
  padding: 8px 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: .78rem;
  font-family: inherit;
}
.share-url-input:focus { outline: none; border-color: var(--primary-light); }
.share-hint {
  font-size: .73rem;
  color: var(--text-light);
  margin: 10px 0 0;
  text-align: center;
}
.import-confirm-container { max-width: 360px; }

/* ── Filter toggle button (mobile only) ─────────────── */
.filter-toggle-btn {
  display: none;
  width: 100%;
  background: var(--primary-light);
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: .9rem;
  font-weight: 700;
  font-family: inherit;
  color: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: space-between;
  transition: background var(--tr);
}
.filter-toggle-btn:hover { background: var(--primary); }
.filter-toggle-meta { display: flex; align-items: center; gap: 8px; }
.filter-toggle-arrow { font-size: 1rem; }
.filter-active-badge {
  background: rgba(255,255,255,.28);
  color: #fff;
  font-size: .70rem;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
}

/* ── Program compact mode ────────────────────────────── */
.modal-program-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.program-compact-btn { display: none; font-size: .72rem !important; padding: 3px 9px !important; }
.modal-program-wrap.compact .modal-program-text { font-size: .72rem; }
.modal-program-wrap.compact .modal-program-text th,
.modal-program-wrap.compact .modal-program-text td { padding: 3px 7px; }

/* ── Site Footer ─────────────────────────────────────── */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.62);
  text-align: center;
  padding: 18px 24px;
  font-size: .76rem;
  line-height: 1.7;
}
.site-footer a { color: rgba(255,255,255,.85); text-decoration: none; font-weight: 600; }
.site-footer a:hover { text-decoration: underline; color: #fff; }
html.dark-mode .site-footer { background: #06080f; }

/* ── Timeline filter bar ── */
.tl-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding: 6px 0 10px;
}
.tl-filter-label {
  font-size: .74rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 2px;
}
.tl-filter-btn {
  font-size: .71rem;
  font-weight: 600;
  padding: 3px 11px;
  border-radius: 12px;
  cursor: pointer;
  border: 1.5px solid var(--tl-block-border, #1565c0);
  background: var(--tl-block-bg, #bbdefb);
  color: var(--tl-block-text, #0d47a1);
  transition: opacity var(--tr);
  user-select: none;
}
.tl-filter-btn.tl-off {
  opacity: 0.32;
  text-decoration: line-through;
}
.tl-filter-btn--keynote      { --tl-block-bg:#fff9c4; --tl-block-text:#e65100; --tl-block-border:#f9a825; }
.tl-filter-btn--oral         { --tl-block-bg:#e8f5e9; --tl-block-text:#1b5e20; --tl-block-border:#388e3c; }
.tl-filter-btn--poster       { --tl-block-bg:#e0f7fa; --tl-block-text:#006064; --tl-block-border:#00838f; }
.tl-filter-btn--break        { --tl-block-bg:#eceff1; --tl-block-text:#546e7a; --tl-block-border:#78909c; }
.tl-filter-btn--housekeeping { --tl-block-bg:#fff3e0; --tl-block-text:#bf360c; --tl-block-border:#f57c00; }
.tl-filter-btn--default      { --tl-block-bg:#bbdefb; --tl-block-text:#0d47a1; --tl-block-border:#1565c0; }
.tl-filter-btn--none         { --tl-block-bg:#f0f0f0; --tl-block-text:#9e9e9e; --tl-block-border:#bdbdbd; }
html.dark-mode .tl-filter-btn--keynote      { --tl-block-bg:#3e2c00; --tl-block-text:#ffe082; --tl-block-border:#ffca28; }
html.dark-mode .tl-filter-btn--oral         { --tl-block-bg:#1a2d1a; --tl-block-text:#a5d6a7; --tl-block-border:#66bb6a; }
html.dark-mode .tl-filter-btn--poster       { --tl-block-bg:#003033; --tl-block-text:#80deea; --tl-block-border:#26c6da; }
html.dark-mode .tl-filter-btn--break        { --tl-block-bg:#1e2a30; --tl-block-text:#90a4ae; --tl-block-border:#546e7a; }
html.dark-mode .tl-filter-btn--housekeeping { --tl-block-bg:#3e2000; --tl-block-text:#ffcc80; --tl-block-border:#ffa726; }
html.dark-mode .tl-filter-btn--default      { --tl-block-bg:#1a2a4a; --tl-block-text:#90caf9; --tl-block-border:#42a5f5; }
html.dark-mode .tl-filter-btn--none         { --tl-block-bg:#1a1d2e; --tl-block-text:#6b7280; --tl-block-border:#374151; }
/* ── No-program row ── */
.tl-row--no-prog {
  background: #f7f5f2;
}
.tl-row--no-prog .tl-label-cell {
  background: #f7f5f2;
  opacity: 0.82;
}
.tl-row--no-prog .tl-track {
  background-color: rgba(0,0,0,.025);
}
.tl-row--no-prog:hover .tl-label-cell {
  background: #efece8 !important;
}
html.dark-mode .tl-row--no-prog {
  background: #1a1c1e;
}
html.dark-mode .tl-row--no-prog .tl-label-cell {
  background: #1a1c1e;
  opacity: 0.75;
}
html.dark-mode .tl-row--no-prog .tl-track {
  background-color: rgba(255,255,255,.03);
}
html.dark-mode .tl-row--no-prog:hover .tl-label-cell {
  background: #22252a !important;
}
/* ── Timeline View ───────────────────────────────────── */
:root {
  --tl-label-w:  180px;
  --tl-slot-px:  80px;
  --tl-track-w:  calc(var(--tl-slot-px) * 22); /* 1760px = 11h × 2 slots/h */
  --tl-row-h:    52px;
}
.timeline-wrap {
  overflow-x: auto;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  margin-top: 2px;
}
.timeline-inner {
  min-width: calc(var(--tl-label-w) + var(--tl-track-w));
}
/* ── Header row ── */
.tl-header-row {
  display: flex;
  position: sticky;
  top: 0;
  z-index: 6;
  background: var(--bg-card);
  border-bottom: 1.5px solid var(--border);
}
/* ── Label column (shared by header and data rows) ── */
.tl-label-cell {
  width: var(--tl-label-w);
  min-width: var(--tl-label-w);
  flex-shrink: 0;
  padding: 5px 8px;
  background: var(--bg-card);
  position: sticky;
  left: 0;
  z-index: 5;
  border-right: 1.5px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
}
.tl-label-cell--head {
  min-height: 32px;
  justify-content: flex-end;
}
/* ── Time strip ── */
.tl-time-strip {
  position: relative;
  height: 32px;
  flex: 1;
  min-width: var(--tl-track-w);
}
.tl-time-mark {
  position: absolute;
  bottom: 5px;
  transform: translateX(-50%);
  font-size: .67rem;
  color: var(--text-light);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.tl-time-mark.tl-major {
  font-weight: 600;
  color: var(--text-muted);
  font-size: .7rem;
}
/* ── Data row ── */
.tl-row {
  display: flex;
  border-top: 1px solid var(--border);
  min-height: var(--tl-row-h);
}
.tl-row:last-child { border-bottom: 1px solid var(--border); }
.tl-row:hover .tl-label-cell { background: var(--bg); }
.tl-event-name {
  font-size: .78rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
}
.tl-event-name-inner {
  display: inline-block;
  animation: tl-marquee 18s linear infinite;
  animation-delay: 1.5s;
  will-change: transform;
}
@keyframes tl-marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.tl-event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-top: 3px;
  align-items: center;
}
.tl-room-pill {
  font-size: .66rem;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--tr);
}
.tl-room-pill:hover:not(.no-map) { background: var(--border-light); color: var(--text); }
.tl-room-pill.no-map { cursor: default; }
/* ── Now-line ── */
.tl-now-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e53935;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 4;
}
.tl-time-strip .tl-now-line {
  bottom: 0;
  top: 0;
}
.tl-time-strip .tl-now-line::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 7px;
  height: 7px;
  background: #e53935;
  border-radius: 50%;
}
/* ── Track area ── */
.tl-track {
  position: relative;
  flex: 1;
  min-width: var(--tl-track-w);
  /* subtle per-slot vertical grid lines */
  background-image: repeating-linear-gradient(
    to right,
    transparent 0,
    transparent calc(var(--tl-slot-px) - 1px),
    var(--border-light) calc(var(--tl-slot-px) - 1px),
    var(--border-light) var(--tl-slot-px)
  );
}
/* Stronger line every full hour (every 2 slots) via pseudo */
.tl-track::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to right,
    transparent 0,
    transparent calc(var(--tl-slot-px) * 2 - 1px),
    var(--border) calc(var(--tl-slot-px) * 2 - 1px),
    var(--border) calc(var(--tl-slot-px) * 2)
  );
  pointer-events: none;
}
/* ── Block ── */
.tl-block {
  position: absolute;
  top: 4px;
  bottom: 4px;
  border-radius: 4px;
  padding: 3px 5px;
  overflow: hidden;
  cursor: pointer;
  border-left: 3px solid var(--tl-block-border, #1565c0);
  background: var(--tl-block-bg, #bbdefb);
  color: var(--tl-block-text, #0d47a1);
  transition: filter var(--tr), box-shadow var(--tr);
  min-width: 4px;
  box-sizing: border-box;
  z-index: 1;
}
.tl-block:hover {
  filter: brightness(.92);
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
  z-index: 2;
}
.tl-block-speaker {
  display: block;
  font-size: .67rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}
.tl-block-title {
  display: -webkit-box;
  font-size: .63rem;
  line-height: 1.25;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
/* Block color themes */
.tl-block--default      { --tl-block-bg:#bbdefb; --tl-block-text:#0d47a1; --tl-block-border:#1565c0; }
.tl-block--keynote      { --tl-block-bg:#fff9c4; --tl-block-text:#e65100; --tl-block-border:#f9a825; }
.tl-block--invited      { --tl-block-bg:#f3e5f5; --tl-block-text:#6a1b9a; --tl-block-border:#9c27b0; }
.tl-block--oral         { --tl-block-bg:#e8f5e9; --tl-block-text:#1b5e20; --tl-block-border:#388e3c; }
.tl-block--poster       { --tl-block-bg:#e0f7fa; --tl-block-text:#006064; --tl-block-border:#00838f; }
.tl-block--break        { --tl-block-bg:#eceff1; --tl-block-text:#546e7a; --tl-block-border:#78909c; }
.tl-block--housekeeping { --tl-block-bg:#fff3e0; --tl-block-text:#bf360c; --tl-block-border:#f57c00; }
.tl-block--none         { --tl-block-bg:#f0f0f0; --tl-block-text:#9e9e9e; --tl-block-border:#bdbdbd; font-style:italic; }
/* ── Tooltip ── */
.tl-tooltip {
  position: fixed;
  z-index: 300;
  max-width: 260px;
  min-width: 160px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  box-shadow: var(--shadow-lg);
  font-size: .82rem;
  pointer-events: auto;
}
.tl-tooltip-type {
  display: inline-block;
  font-size: .67rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 10px;
  margin-bottom: 4px;
  background: var(--tl-block-bg, #bbdefb);
  color: var(--tl-block-text, #0d47a1);
  border: 1px solid var(--tl-block-border, #1565c0);
}
.tl-tooltip-type--default      { --tl-block-bg:#bbdefb; --tl-block-text:#0d47a1; --tl-block-border:#1565c0; }
.tl-tooltip-type--keynote      { --tl-block-bg:#fff9c4; --tl-block-text:#e65100; --tl-block-border:#f9a825; }
.tl-tooltip-type--invited      { --tl-block-bg:#f3e5f5; --tl-block-text:#6a1b9a; --tl-block-border:#9c27b0; }
.tl-tooltip-type--oral         { --tl-block-bg:#e8f5e9; --tl-block-text:#1b5e20; --tl-block-border:#388e3c; }
.tl-tooltip-type--poster       { --tl-block-bg:#e0f7fa; --tl-block-text:#006064; --tl-block-border:#00838f; }
.tl-tooltip-type--break        { --tl-block-bg:#eceff1; --tl-block-text:#546e7a; --tl-block-border:#78909c; }
.tl-tooltip-type--housekeeping { --tl-block-bg:#fff3e0; --tl-block-text:#bf360c; --tl-block-border:#f57c00; }
.tl-tooltip-type--none         { --tl-block-bg:#f0f0f0; --tl-block-text:#9e9e9e; --tl-block-border:#bdbdbd; }
.tl-tooltip-time   { font-size: .7rem; color: var(--text-light); margin-bottom: 3px; }
.tl-tooltip-title  { font-weight: 600; font-size: .82rem; line-height: 1.3; margin-bottom: 2px; }
.tl-tooltip-speaker { font-size: .78rem; color: var(--text-muted); }
.tl-tooltip-cal-btn {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 4px 8px;
  font-size: .75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  text-align: center;
  transition: background var(--tr), border-color var(--tr);
}
.tl-tooltip-cal-btn:hover { background: #dbeafe; border-color: #93c5fd; color: #1d4ed8; }
.tl-row-cal-btn {
  font-size: .66rem;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--tr), color var(--tr), border-color var(--tr);
}
.tl-row-cal-btn:hover { background: #dbeafe; color: #1d4ed8; border-color: #93c5fd; }
/* ── Dark mode overrides ── */
html.dark-mode .timeline-wrap         { border-color: var(--border); background: var(--bg-card); }
html.dark-mode .tl-header-row         { background: var(--bg-card); }
html.dark-mode .tl-label-cell         { background: var(--bg-card); }
html.dark-mode .tl-row:hover .tl-label-cell { background: #1e2133; }
html.dark-mode .tl-room-pill          { background: var(--bg); border-color: var(--border); }
html.dark-mode .tl-tooltip            { background: var(--bg-card); border-color: var(--border); }
html.dark-mode .tl-block--default      { --tl-block-bg:#1a2a4a; --tl-block-text:#90caf9; --tl-block-border:#42a5f5; }
html.dark-mode .tl-block--keynote      { --tl-block-bg:#3e2c00; --tl-block-text:#ffe082; --tl-block-border:#ffca28; }
html.dark-mode .tl-block--invited      { --tl-block-bg:#2d1a3d; --tl-block-text:#ce93d8; --tl-block-border:#ab47bc; }
html.dark-mode .tl-block--oral         { --tl-block-bg:#1a2d1a; --tl-block-text:#a5d6a7; --tl-block-border:#66bb6a; }
html.dark-mode .tl-block--poster       { --tl-block-bg:#003033; --tl-block-text:#80deea; --tl-block-border:#26c6da; }
html.dark-mode .tl-block--break        { --tl-block-bg:#1e2a30; --tl-block-text:#90a4ae; --tl-block-border:#546e7a; }
html.dark-mode .tl-block--housekeeping { --tl-block-bg:#3e2000; --tl-block-text:#ffcc80; --tl-block-border:#ffa726; }
html.dark-mode .tl-block--none         { --tl-block-bg:#1a1d2e; --tl-block-text:#6b7280; --tl-block-border:#374151; }
html.dark-mode .tl-tooltip-type--default      { --tl-block-bg:#1a2a4a; --tl-block-text:#90caf9; --tl-block-border:#42a5f5; }
html.dark-mode .tl-tooltip-type--keynote      { --tl-block-bg:#3e2c00; --tl-block-text:#ffe082; --tl-block-border:#ffca28; }
html.dark-mode .tl-tooltip-type--invited      { --tl-block-bg:#2d1a3d; --tl-block-text:#ce93d8; --tl-block-border:#ab47bc; }
html.dark-mode .tl-tooltip-type--oral         { --tl-block-bg:#1a2d1a; --tl-block-text:#a5d6a7; --tl-block-border:#66bb6a; }
html.dark-mode .tl-tooltip-type--poster       { --tl-block-bg:#003033; --tl-block-text:#80deea; --tl-block-border:#26c6da; }
html.dark-mode .tl-tooltip-type--break        { --tl-block-bg:#1e2a30; --tl-block-text:#90a4ae; --tl-block-border:#546e7a; }
html.dark-mode .tl-tooltip-type--housekeeping { --tl-block-bg:#3e2000; --tl-block-text:#ffcc80; --tl-block-border:#ffa726; }
html.dark-mode .tl-tooltip-type--none         { --tl-block-bg:#1a1d2e; --tl-block-text:#6b7280; --tl-block-border:#374151; }