/* ============================================================
   SCHEDULE 2.0 — Desktop + Mobile
   ============================================================ */

/* ===== Header ===== */
.sch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  min-width: 0;
}

.sch-header-left {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.sch-title-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
}

.sch-class-name {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sch-week-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.sch-week-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.sch-week-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.sch-week-btn:active:not(:disabled) { transform: scale(0.95); }
.sch-week-btn:disabled { opacity: 0.25; cursor: not-allowed; }

.sch-week-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 130px;
  gap: 1px;
}

.sch-week-main {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.sch-week-sub {
  font-size: 10px;
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
}

.sch-today-btn {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 4px 10px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  margin-left: 4px;
}

.sch-today-btn:hover { background: var(--color-primary-tint); }
.sch-today-btn:active { transform: scale(0.98); }

.sch-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.sch-search-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.sch-search-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.sch-search-btn:active { transform: scale(0.95); }

/* ===== Search Bar ===== */
.sch-search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  animation: searchSlideDown var(--duration-fast) var(--ease-out);
  min-width: 0;
}

@keyframes searchSlideDown {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.sch-search-icon {
  width: 16px;
  height: 16px;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
}

.sch-search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  color: var(--color-text);
  padding: 2px 0;
  min-width: 0;
}

.sch-search-input::placeholder { color: var(--color-text-tertiary); }

.sch-search-close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  font-size: 14px;
  transition: color var(--transition-fast);
}

.sch-search-close:hover { color: var(--color-text); }

/* ===== Grid ===== */
.sch-grid-wrapper {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 20px;
  max-width: 100%;
}

.sch-grid {
  display: grid;
  grid-template-columns: 52px repeat(5, 1fr);
  position: relative;
  background: var(--color-surface);
  min-width: 0;
}

.sch-grid-corner {
  padding: 8px 4px;
  border-right: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: sticky;
  top: 0;
  left: 0;
  z-index: 5;
}

.sch-day-header {
  padding: 8px 6px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border-light);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  position: sticky;
  top: 0;
  z-index: 3;
  transition: background var(--transition-fast);
}

.sch-day-header:last-child { border-right: none; }

.sch-day-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.sch-day-date {
  font-size: 12px;
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
}

.sch-day-header.today {
  background: var(--color-primary-tint);
  border-bottom-color: var(--color-primary);
}

.sch-day-header.today .sch-day-name {
  color: var(--color-primary);
}

.sch-day-header.today .sch-day-date {
  color: var(--color-primary);
  font-weight: 600;
}

.sch-section-label {
  padding: 6px 4px;
  text-align: center;
  border-right: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  position: sticky;
  left: 0;
  z-index: 4;
}

.sch-section-num {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1;
}

.sch-section-time {
  font-size: 9px;
  font-weight: 400;
  color: var(--color-text-tertiary);
}

.sch-cell {
  border-right: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
  min-height: 44px;
}

/* ===== Course Block ===== */
.sch-course {
  position: relative;
  display: flex;
  cursor: pointer;
  overflow: hidden;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  border-right: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-surface);
  min-width: 0;
}

.sch-course:hover {
  background: var(--color-surface-subtle);
}

.sch-course-bar {
  width: 3px;
  flex-shrink: 0;
  background: hsl(var(--course-hue), 70%, 55%);
  transition: width var(--transition-fast);
}

.sch-course:hover .sch-course-bar {
  width: 4px;
}

.sch-course-body {
  flex: 1;
  padding: 5px 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.sch-course-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.sch-course-loc {
  font-size: 10px;
  color: var(--color-text-secondary);
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sch-course-teacher {
  font-size: 10px;
  color: var(--color-text-tertiary);
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sch-course-sec {
  font-size: 9px;
  color: var(--color-text-tertiary);
  margin-top: auto;
  font-variant-numeric: tabular-nums;
}

/* Course states */
.sch-course.finished {
  opacity: 0.35;
}

.sch-course.finished .sch-course-bar {
  background: var(--color-text-tertiary);
}

.sch-course.in-progress {
  background: hsl(var(--course-hue), 80%, 96%);
  z-index: 2;
}

.sch-course.in-progress .sch-course-bar {
  width: 4px;
}

.sch-course.in-progress .sch-course-name {
  color: hsl(var(--course-hue), 80%, 35%);
}

.sch-course.next {
  background: hsl(var(--course-hue), 60%, 97%);
}

.sch-course.next .sch-course-bar {
  opacity: 0.9;
}

/* Conflict */
.sch-course.conflict::after {
  content: 'CONFLICT';
  position: absolute;
  top: 2px;
  right: 4px;
  font-size: 8px;
  font-weight: 700;
  color: var(--color-danger);
  letter-spacing: 0.05em;
}

.sch-conflict-tag {
  position: absolute;
  top: 2px;
  right: 4px;
  font-size: 8px;
  font-weight: 700;
  color: var(--color-danger);
  letter-spacing: 0.05em;
}

/* ===== Current Time Line ===== */
.sch-now-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 0;
  z-index: 10;
  pointer-events: none;
  transform: translateY(-50%);
}

.sch-now-dot {
  position: absolute;
  left: -5px;
  top: -5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  animation: nowPulse 2s ease-in-out infinite;
}

@keyframes nowPulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--color-primary-light); }
  50% { box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.1); }
}

.sch-now-label {
  position: absolute;
  left: 8px;
  top: -8px;
  font-size: 10px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-surface);
  padding: 1px 4px;
  border-radius: 3px;
  border: 1px solid var(--color-primary-light);
  font-variant-numeric: tabular-nums;
}

/* ===== Empty Week ===== */
.sch-empty-week {
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sch-empty-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.sch-empty-sub {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 4px;
  font-family: var(--font-mono);
}

/* ===== Week Summary ===== */
.sch-week-summary {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  margin-top: 8px;
  min-width: 0;
}

.sch-summary-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.sch-summary-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 16px;
  min-width: 0;
}

.sch-stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  min-width: 0;
}

.sch-stat-num {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  white-space: nowrap;
}

.sch-stat-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Week Load */
.sch-load {
  margin-bottom: 16px;
  min-width: 0;
}

.sch-load-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.sch-load-bars {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  align-items: end;
  height: 60px;
  min-width: 0;
}

.sch-load-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
  gap: 4px;
  min-width: 0;
}

.sch-load-bar {
  width: 100%;
  min-height: 2px;
  background: var(--color-border);
  border-radius: 2px 2px 0 0;
  transition: height var(--transition-slow);
}

.sch-load-col.busiest .sch-load-bar {
  background: var(--color-primary);
}

.sch-load-day {
  font-size: 9px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
}

.sch-load-col.busiest .sch-load-day {
  color: var(--color-primary);
}

/* Conflicts */
.sch-conflicts {
  padding: 10px 12px;
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-sm);
  min-width: 0;
}

.sch-conflict-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-danger);
  margin-bottom: 6px;
}

.sch-conflict-item {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--color-text-secondary);
  padding: 2px 0;
}

/* ===== Search Results ===== */
.sch-search-results {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sch-search-count {
  font-size: 11px;
  color: var(--color-text-tertiary);
  margin-bottom: 4px;
}

.sch-search-item {
  padding: 10px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.sch-search-item:hover {
  border-color: var(--color-primary);
}

.sch-search-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
}

.sch-search-meta {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.sch-search-sub {
  font-size: 11px;
  color: var(--color-text-tertiary);
  margin-top: 1px;
}

.sch-search-empty {
  padding: 24px;
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 13px;
}

/* ===== Mobile Schedule Header ===== */
.m-sch-header {
  margin-bottom: 10px;
}

.m-sch-week-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.m-sch-week-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.m-sch-week-btn:active:not(:disabled) { transform: scale(0.95); }
.m-sch-week-btn:disabled { opacity: 0.25; }

.m-sch-week-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.m-sch-week-main {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.m-sch-week-sub {
  font-size: 10px;
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
}

.m-sch-search-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.m-sch-search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  animation: searchSlideDown var(--duration-fast) var(--ease-out);
}

.m-sch-search-input {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-surface);
  min-width: 0;
}

.m-sch-search-input:focus { outline: none; border-color: var(--color-primary); }
.m-sch-search-input::placeholder { color: var(--color-text-tertiary); }

.m-sch-search-close {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
  padding: 4px 2px;
  flex-shrink: 0;
}

/* ===== Mobile Day Picker ===== */
.m-day-picker {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
  margin-bottom: 12px;
  scrollbar-width: none;
  max-width: 100%;
}

.m-day-picker::-webkit-scrollbar { display: none; }

.m-day-chip {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 12px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: all var(--transition-fast);
  scroll-snap-align: start;
  min-width: 52px;
}

.m-day-chip:active { transform: scale(0.97); }

.m-day-chip-name {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.m-day-chip-date {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}

.m-day-chip.today {
  border-color: var(--color-primary-light);
}

.m-day-chip.today .m-day-chip-date {
  color: var(--color-primary);
}

.m-day-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.m-day-chip.active .m-day-chip-name,
.m-day-chip.active .m-day-chip-date {
  color: #fff;
}

/* ===== Mobile Day Title ===== */
.m-day-title-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 12px;
}

.m-day-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text);
  text-transform: uppercase;
}

.m-day-title-date {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.m-day-today-badge {
  font-size: 9px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border: 1px solid var(--color-primary-light);
  border-radius: 3px;
  background: var(--color-primary-tint);
}

/* ===== Mobile Agenda ===== */
.m-agenda {
  display: flex;
  flex-direction: column;
  position: relative;
  min-width: 0;
}

.m-agenda-item {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  cursor: pointer;
  position: relative;
  transition: opacity var(--transition-fast);
  min-width: 0;
}

.m-agenda-item:active {
  background: var(--color-surface-subtle);
}

.m-ag-time {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  width: 44px;
  flex-shrink: 0;
  gap: 1px;
  padding-top: 2px;
}

.m-ag-start {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.m-ag-end {
  font-size: 10px;
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.m-ag-bar {
  width: 3px;
  flex-shrink: 0;
  background: hsl(var(--course-hue), 70%, 55%);
  border-radius: 2px;
}

.m-ag-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.m-ag-now-tag,
.m-ag-next-tag {
  display: inline-block;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 1px 6px;
  border-radius: 3px;
  align-self: flex-start;
}

.m-ag-now-tag {
  background: var(--color-primary);
  color: #fff;
}

.m-ag-next-tag {
  background: var(--color-primary-tint);
  color: var(--color-primary);
}

.m-ag-name {
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.m-ag-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 8px;
  font-size: 11px;
  color: var(--color-text-secondary);
}

.m-ag-loc {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 180px;
}

.m-ag-teacher {
  color: var(--color-text-tertiary);
}

.m-ag-sec {
  font-size: 10px;
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
}

/* Agenda item states */
.m-agenda-item.finished {
  opacity: 0.4;
}

.m-agenda-item.finished .m-ag-bar {
  background: var(--color-text-tertiary);
}

.m-agenda-item.in-progress .m-ag-name {
  color: hsl(var(--course-hue), 80%, 35%);
}

.m-agenda-item.next {
  /* subtle highlight */
}

/* Free time between courses */
.m-ag-free {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0 4px 54px;
  position: relative;
}

.m-ag-free-line {
  flex: 1;
  height: 1px;
  background: var(--color-border-light);
  min-width: 0;
}

.m-ag-free-text {
  font-size: 10px;
  color: var(--color-text-tertiary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
  font-variant-numeric: tabular-nums;
}

.m-ag-free-now {
  color: var(--color-primary);
  font-weight: 600;
}

.m-ag-free.now .m-ag-free-line {
  background: var(--color-primary-light);
}

/* Empty day */
.m-agenda-empty {
  padding: 32px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border: 1px dashed var(--color-border-light);
  border-radius: var(--radius-sm);
}

.m-agenda-empty-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.m-agenda-empty-sub {
  font-size: 11px;
  color: var(--color-text-tertiary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.m-agenda-empty-stats {
  display: flex;
  gap: 24px;
  margin-top: 8px;
}

.m-empty-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.m-empty-stat-num {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-tertiary);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.m-empty-stat-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  letter-spacing: 0.08em;
}

/* ===== Mobile Week Summary ===== */
.sch-week-summary {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}

/* ===== Search Results (shared) ===== */
#search-results-container {
  margin-top: 16px;
}