/* v2.6.0: Calendar Page — enhanced with pills, tooltips, transitions, upcoming, mini year, iCal */

.calendar-section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-3xl);
}

.calendar-page-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.calendar-page-header h1 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.calendar-page-header p {
  color: var(--text-muted);
  font-size: 1.0625rem;
}

/* ── Toolbar ─────────────────────────────────────── */

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.calendar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.calendar-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition);
}

.calendar-nav-btn:hover {
  background: var(--green-50);
  border-color: var(--primary);
  color: var(--primary);
}

.calendar-month-title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text);
  min-width: 200px;
  text-align: center;
}

.calendar-today-btn {
  margin-left: var(--space-xs);
}

.calendar-toolbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.calendar-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.calendar-view-toggle {
  display: flex;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}

.calendar-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 36px;
  border: none;
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.calendar-toggle-btn:first-child {
  border-right: 1px solid var(--gray-200);
}

.calendar-toggle-btn:hover {
  background: var(--green-50);
  color: var(--primary);
}

.calendar-toggle-btn.active {
  background: var(--primary);
  color: white;
}

/* ── Upcoming Events Strip ───────────────────────── */

.calendar-upcoming {
  margin-bottom: var(--space-lg);
}

.calendar-upcoming-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.calendar-upcoming-strip {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  scrollbar-width: thin;
}

.calendar-upcoming-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  flex-shrink: 0;
  min-width: 180px;
  max-width: 240px;
  transition: all var(--transition);
}

.calendar-upcoming-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.calendar-upcoming-card.closed { border-left: 3px solid #ef4444; }
.calendar-upcoming-card.half-day { border-left: 3px solid var(--gold-500); }
.calendar-upcoming-card.event-only { border-left: 3px solid #3b82f6; }
.calendar-upcoming-card.saturday { border-left: 3px solid var(--green-400); }

.calendar-upcoming-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 36px;
}

.calendar-upcoming-date .month {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
}

.calendar-upcoming-date .day {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.calendar-upcoming-info {
  flex: 1;
  min-width: 0;
}

.calendar-upcoming-type {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--primary);
  display: block;
}

.calendar-upcoming-type.closed { color: #ef4444; }
.calendar-upcoming-type.half-day { color: var(--accent-dark); }
.calendar-upcoming-type.event-only { color: #3b82f6; }

.calendar-upcoming-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

/* ── Mini Year Overview ──────────────────────────── */

.calendar-mini-year {
  display: flex;
  gap: 4px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.calendar-mini-month {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}

.calendar-mini-month:hover {
  background: var(--green-50);
  color: var(--primary);
  border-color: var(--primary);
}

.calendar-mini-month.selected {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.calendar-mini-month.current {
  font-weight: 700;
}

.calendar-mini-month.has-events::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
}

.calendar-mini-month.selected.has-events::after {
  background: white;
}

/* ── Grid View ───────────────────────────────────── */

.calendar-grid-wrapper {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.calendar-grid-header {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  background: var(--green-900);
}

.calendar-dow {
  padding: var(--space-sm) var(--space-xs);
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.85);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  background: var(--bg);
}

.calendar-day {
  min-height: 90px;
  padding: var(--space-sm);
  border-right: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  transition: background var(--transition);
  position: relative;
}

.calendar-day:nth-child(7n) {
  border-right: none;
}

.calendar-day-num {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1;
}

.calendar-day.other-month {
  background: var(--bg-alt);
}

.calendar-day.other-month .calendar-day-num {
  color: var(--gray-400);
}

.calendar-day.today {
  background: var(--green-50);
}

.calendar-day.today .calendar-day-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
}

/* Day type backgrounds */
.calendar-day.half-day {
  background: var(--gold-50);
}

.calendar-day.closed {
  background: rgba(239, 68, 68, 0.06);
}

.calendar-day.saturday {
  background: var(--green-50);
}

.calendar-day.event-only {
  background: rgba(59, 130, 246, 0.06);
}

/* Clickable days */
.calendar-day.clickable {
  cursor: pointer;
}

.calendar-day.clickable:hover {
  background: var(--green-100);
}

.calendar-day.closed.clickable:hover {
  background: rgba(239, 68, 68, 0.12);
}

.calendar-day.half-day.clickable:hover {
  background: var(--gold-100);
}

/* ── Event Pills (replaces dots) ─────────────────── */

.calendar-day-pills {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: auto;
  width: 100%;
}

.calendar-day-pills.single-pill {
  margin-top: auto;
  margin-bottom: auto;
}

.calendar-pill {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.3;
  padding: 2px 5px;
  border-radius: 3px;
  word-break: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
}

.pill-closed { background: rgba(239, 68, 68, 0.12); color: #dc2626; }
.pill-half-day { background: rgba(245, 158, 11, 0.12); color: #b45309; }
.pill-event { background: rgba(59, 130, 246, 0.12); color: #2563eb; }
.pill-event-only { background: rgba(59, 130, 246, 0.12); color: #2563eb; }
.pill-saturday { background: rgba(34, 197, 94, 0.12); color: #16a34a; }

.calendar-pill-more {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 1px 5px;
}

/* ── Dot indicators (legend only) ────────────────── */

.calendar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.dot-half-day { background: var(--gold-500); }
.dot-closed { background: #ef4444; }
.dot-event, .dot-event-only { background: #3b82f6; }
.dot-saturday { background: var(--green-400); }

/* ── Legend ───────────────────────────────────────── */

.calendar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  justify-content: center;
  margin-top: var(--space-lg);
  padding: var(--space-md) 0;
}

.calendar-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ── Tooltips ────────────────────────────────────── */

.calendar-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--gray-800);
  color: white;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.8125rem;
  line-height: 1.4;
  max-width: 220px;
  z-index: 20;
  box-shadow: var(--shadow-md);
  pointer-events: none;
  opacity: 0;
  animation: tooltipIn 0.15s ease forwards;
}

.calendar-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--gray-800);
}

/* Flip tooltip below when near top of viewport */
.calendar-tooltip.tooltip-below {
  bottom: auto;
  top: calc(100% + 6px);
}

.calendar-tooltip.tooltip-below::after {
  top: auto;
  bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: var(--gray-800);
}

@keyframes tooltipIn {
  to { opacity: 1; }
}

.calendar-tooltip-type {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 2px;
}

.calendar-tooltip-type.closed { color: #fca5a5; }
.calendar-tooltip-type.half-day { color: #fcd34d; }
.calendar-tooltip-type.event-only { color: #93c5fd; }

.calendar-tooltip-dismissal {
  font-size: 0.75rem;
  opacity: 0.8;
  margin-bottom: 2px;
}

.calendar-tooltip-event {
  font-weight: 500;
}

.calendar-tooltip-more {
  font-size: 0.6875rem;
  opacity: 0.6;
  margin-top: 2px;
}

/* ── Month Transition Animations ─────────────────── */

@keyframes calSlideOutLeft {
  to { transform: translateX(-30px); opacity: 0; }
}
@keyframes calSlideOutRight {
  to { transform: translateX(30px); opacity: 0; }
}
@keyframes calSlideInLeft {
  from { transform: translateX(-30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes calSlideInRight {
  from { transform: translateX(30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.cal-slide-out-left  { animation: calSlideOutLeft 0.2s ease forwards; }
.cal-slide-out-right { animation: calSlideOutRight 0.2s ease forwards; }
.cal-slide-in-left   { animation: calSlideInLeft 0.25s ease; }
.cal-slide-in-right  { animation: calSlideInRight 0.25s ease; }

@media (prefers-reduced-motion: reduce) {
  .cal-slide-out-left, .cal-slide-out-right,
  .cal-slide-in-left, .cal-slide-in-right {
    animation: none !important;
  }
}

/* ── Empty State ─────────────────────────────────── */

.calendar-empty {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.calendar-empty-icon {
  color: var(--gray-300);
  margin-bottom: var(--space-sm);
}

.calendar-empty-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.calendar-empty-sub {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
  max-width: 320px;
}

/* ── List View ───────────────────────────────────── */

.calendar-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.calendar-list-item {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
}

.calendar-list-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.calendar-list-item.closed { border-left: 4px solid #ef4444; }
.calendar-list-item.half-day { border-left: 4px solid var(--gold-500); }
.calendar-list-item.event-only { border-left: 4px solid #3b82f6; }
.calendar-list-item.saturday { border-left: 4px solid var(--green-400); }

.calendar-list-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  height: 56px;
  background: var(--green-600);
  color: white;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.calendar-list-item.closed .calendar-list-date { background: #ef4444; }
.calendar-list-item.half-day .calendar-list-date { background: var(--gold-500); color: var(--gray-900); }

.calendar-list-date .month {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.calendar-list-date .day {
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1;
}

.calendar-list-info {
  flex: 1;
  min-width: 0;
}

.calendar-list-weekday {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.calendar-list-type {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.calendar-list-type.closed { color: #ef4444; }
.calendar-list-type.half-day { color: var(--accent-dark); }
.calendar-list-type.event-only { color: #3b82f6; }

.calendar-list-info h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.calendar-list-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.calendar-list-dismissal {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--accent-dark);
  font-weight: 500;
  margin-top: var(--space-xs);
}

.calendar-list-more {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 500;
  margin-left: var(--space-sm);
}

/* ── Modal ────────────────────────────────────────── */

.calendar-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.2s ease;
  padding: var(--space-lg);
}

.calendar-modal-backdrop.open {
  opacity: 1;
}

.calendar-modal {
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.2s ease;
}

.calendar-modal-backdrop.open .calendar-modal {
  transform: translateY(0) scale(1);
}

.calendar-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--gray-100);
}

.calendar-modal-header h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.calendar-modal-type {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
}

.calendar-modal-type.closed { color: #ef4444; }
.calendar-modal-type.half-day { color: var(--accent-dark); }
.calendar-modal-type.event-only { color: #3b82f6; }

.calendar-modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--transition);
  flex-shrink: 0;
  line-height: 1;
}

.calendar-modal-close:hover {
  background: var(--gray-100);
  color: var(--text);
}

.calendar-modal-body {
  padding: var(--space-lg) var(--space-xl);
}

.calendar-modal-dismissal {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent-dark);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--gray-100);
}

.calendar-modal-dismissal svg {
  flex-shrink: 0;
}

.calendar-modal-event {
  padding: var(--space-sm) 0;
}

.calendar-modal-event + .calendar-modal-event {
  border-top: 1px solid var(--gray-100);
  padding-top: var(--space-md);
  margin-top: var(--space-sm);
}

.calendar-modal-event h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-xs);
}

.calendar-modal-event p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

.calendar-modal-grade {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--green-50);
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: var(--space-xs);
}

.calendar-modal-no-events {
  color: var(--text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

.calendar-ical-btn {
  margin-top: var(--space-lg);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-top: var(--space-md);
  border-top: 1px solid var(--gray-100);
  width: 100%;
  justify-content: center;
}