/* Class timetable editor (`.tt-`) and the Today timeline (`.tl-`).
 *
 * Owns only those two namespaces. Colours come from the theme tokens in
 * ip-base.css so light, dark and every accent theme follow automatically;
 * the only literal colours are translucent tints layered over those tokens.
 */

/* ── Today timeline ───────────────────────────────────────────────── */

.tl-card { margin-top: 1.25rem; }
.tl-card[hidden] { display: none; }

.tl-head-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-weight: 600;
  font-size: 0.76rem;
  color: var(--text-muted);
}
.tl-head-meta a { color: var(--text-muted); text-decoration: none; }
.tl-head-meta a:hover, .tl-head-meta a:focus-visible { color: var(--text-primary); }
.tl-rotation:empty { display: none; }
.tl-rotation {
  padding: 0;
  color: var(--text-muted);
}

.tl-next {
  margin: -0.35rem 0 0.75rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.tl-next[hidden] { display: none; }

.tl-status {
  min-height: 1.1em;
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tl-scroll {
  position: relative;
  max-height: 560px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border-radius: var(--ipd-radius-md, 14px);
  border: 0;
  background: color-mix(in srgb, var(--bg-card) 72%, var(--bg));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.035);
}
.tl-scroll[hidden] { display: none; }

.tl-grid {
  position: relative;
  /* Room above the first hour label and below the last. */
  margin: 12px 8px 12px 52px;
}

.tl-hour {
  position: absolute;
  left: -52px;
  right: -8px;
  border-top: 1px solid color-mix(in srgb, var(--border) 48%, transparent);
  pointer-events: none;
}
.tl-hour span {
  position: absolute;
  left: 8px;
  top: -0.6em;
  padding: 0 4px;
  background: color-mix(in srgb, var(--bg-card) 72%, var(--bg));
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.tl-items { list-style: none; margin: 0; padding: 0; }

.tl-item {
  position: absolute;
  box-sizing: border-box;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 10px;
  border: 0;
  background: color-mix(in srgb, var(--bg-card) 76%, var(--bg));
  color: var(--text-primary);
  font-size: 0.8rem;
  line-height: 1.25;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}
.tl-body { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.tl-title { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tl-meta { color: var(--text-secondary); font-size: 0.72rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.tl-class {
  --tl-swatch: var(--text-muted);
  background: color-mix(in srgb, var(--tl-swatch) 8%, var(--bg-card));
}
.tl-busy {
  background: color-mix(in srgb, var(--bg-elevated) 56%, var(--bg));
  color: var(--text-secondary);
}
.tl-study {
  background: color-mix(in srgb, var(--accent-soft, var(--bg-card)) 78%, var(--bg-card));
  cursor: grab;
}
.tl-break { background: transparent; color: var(--text-muted); }
.tl-item.is-done { opacity: 0.6; }
.tl-item.is-done .tl-title { text-decoration: line-through; }
.tl-item.has-conflict { box-shadow: inset 0 0 0 1px var(--danger); }
.tl-item.is-current { box-shadow: 0 0 0 2px var(--accent); }
.tl-item.has-conflict.is-current { box-shadow: inset 0 0 0 1px var(--danger), 0 0 0 2px var(--accent); }
.tl-item.is-moving { cursor: grabbing; z-index: 3; box-shadow: var(--shadow-lg, 0 8px 24px rgba(0, 0, 0, 0.18)); }
.tl-study:focus-visible { outline: 3px solid var(--focus-ring, var(--accent)); outline-offset: 2px; z-index: 2; }

/* The grip is the touch target for dragging, so a finger anywhere else on a
   block still scrolls the day. 44px tall where the block allows. */
.tl-grip {
  position: relative;
  flex: 0 0 auto;
  align-self: stretch;
  width: 22px;
  min-height: 24px;
  margin: -4px -8px -4px 0;
  touch-action: none;
  cursor: grab;
  background: transparent;
}
.tl-grip::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 3px; height: 16px;
  transform: translate(-50%, -50%);
  border-radius: 99px;
  background: var(--text-muted);
  opacity: 0.42;
}

.tl-left {
  position: absolute;
  right: 26px;
  bottom: 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-primary);
}
.tl-left::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: conic-gradient(var(--accent) var(--tl-angle, 0deg), color-mix(in srgb, var(--accent) 18%, var(--bg-elevated)) 0);
  box-shadow: inset 0 0 0 3px var(--bg-card);
}

.tl-now {
  position: absolute;
  left: -10px;
  right: 0;
  height: 0;
  border-top: 2px solid var(--danger);
  z-index: 4;
  pointer-events: none;
}
.tl-now::before {
  content: "";
  position: absolute;
  left: -5px;
  top: -6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--danger);
}
.tl-now[hidden] { display: none; }

.tl-empty {
  padding: 1rem;
  border-radius: var(--ipd-radius-md, 14px);
  background: color-mix(in srgb, var(--bg-card) 56%, var(--bg));
  font-size: 0.84rem;
  color: var(--text-muted);
  text-align: center;
}
.tl-empty[hidden] { display: none; }
.tl-empty a { color: var(--text-primary); font-weight: 600; }

.tl-confirm {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 0.75rem;
  padding: 10px 12px;
  border: 0;
  border-radius: var(--ipd-radius-sm, 10px);
  background: color-mix(in srgb, var(--bg-card) 72%, var(--bg));
}
.tl-confirm[hidden] { display: none; }
.tl-confirm p { flex: 1 1 220px; margin: 0; font-size: 0.84rem; color: var(--text-primary); }

.tl-btn, .tt-btn {
  min-height: 36px;
  padding: 7px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-primary);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}
.tl-btn-primary, .tt-btn-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-ink, #fff);
}
.tl-btn[hidden], .tt-btn[hidden] { display: none; }
.tl-btn:disabled, .tt-btn:disabled { opacity: 0.55; cursor: not-allowed; }

.tl-hint { margin: 0.6rem 0 0; font-size: 0.72rem; color: var(--text-muted); }

@media (max-width: 640px) {
  .tl-scroll { max-height: 70vh; }
  .tl-grid { margin-left: 44px; }
  .tl-hour { left: -44px; }
  .tl-hour span { left: 4px; }
  .tl-grip { width: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  .tl-item { transition: none; }
}

/* ── Timetable editor (/classes) ──────────────────────────────────── */

.tt-panel {
  margin: 0 0 1.25rem;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-secondary);
}
.tt-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.tt-head h2 { margin: 0; font-size: 1rem; }
.tt-head p { margin: 4px 0 0; font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; max-width: 60ch; }
.tt-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tt-file { position: relative; overflow: hidden; display: inline-flex; align-items: center; }
.tt-file input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.tt-file:focus-within { outline: 3px solid var(--focus-ring, var(--accent)); outline-offset: 2px; }
.tt-status { min-height: 1.1em; margin: 10px 0 0; font-size: 0.8rem; color: var(--text-muted); }
.tt-status.is-error { color: var(--danger-text, var(--danger)); }

.tt-section { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border); }
.tt-section h3 { margin: 0 0 8px; font-size: 0.86rem; }
.tt-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.tt-field { display: flex; flex-direction: column; gap: 4px; font-size: 0.74rem; color: var(--text-muted); }
.tt-field input, .tt-field select {
  min-height: 36px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--bg-primary, var(--bg));
  color: var(--text-primary);
  font: inherit;
  font-size: 0.85rem;
}
.tt-field input[type="time"] { min-width: 7.5rem; }
.tt-field[hidden], .tt-panel[hidden], .tt-section[hidden] { display: none; }
.tt-field.is-wide { flex: 1 1 200px; }
.tt-field.is-narrow input { width: 4.5rem; }
.tt-days { border: 0; margin: 0; padding: 0; display: flex; gap: 4px; flex-wrap: wrap; }
.tt-days legend { font-size: 0.74rem; color: var(--text-muted); margin-bottom: 4px; padding: 0; }
.tt-chip { position: relative; }
.tt-chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.tt-chip span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 32px;
  padding: 0 8px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
}
.tt-chip input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--on-ink, #fff); }
.tt-chip input:focus-visible + span { outline: 3px solid var(--focus-ring, var(--accent)); outline-offset: 2px; }

.tt-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.tt-class {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-card);
}
.tt-class.is-draft { border-style: dashed; }
.tt-class-foot { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.tt-badge { font-size: 0.7rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.tt-warn { font-size: 0.74rem; color: var(--warn-text, var(--text-secondary)); }
.tt-skips { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.tt-skips li { display: flex; gap: 8px; align-items: center; font-size: 0.82rem; }
.tt-empty { font-size: 0.8rem; color: var(--text-muted); }

@media (max-width: 640px) {
  .tt-field.is-wide { flex-basis: 100%; }
  .tt-panel { padding: 14px; }
}