/* ─── Main layout ─────────────────────────────────────────────── */
main {
  padding: 14px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ─── Layout wrapper (sidebar + calendar) ─────────────────────── */
#wrap {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

/* ─── Sidebar (subjects / prof list) ──────────────────────────── */
#external-events,
#prof-list {
  width: 320px;
  min-width: 260px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: #fafafa;
  font-size: 14px;
  box-sizing: border-box;
}

/* Desktop: sidebar sticky */
@media (min-width: 769px) {
  #external-events,
  #prof-list {
    position: sticky;
    top: 12px;
    max-height: calc(100vh - 24px);
    overflow: auto;
  }
}

#external-events .fc-event {
  margin: 6px 0;
  padding: 6px;
  cursor: grab;
  border-radius: 6px;
}

#prof-list button {
  width: 100%;
  text-align: left;
  margin: 4px 0;
}

.active-prof {
  font-weight: 700;
}

/* ─── Calendar container ──────────────────────────────────────── */
#calendar-container {
  flex: 1;
  min-width: 0; /* permite que flex shrink funcione */
  box-sizing: border-box;
}

/* Desktop: calendar sticky */
@media (min-width: 769px) {
  #calendar-container {
    position: sticky;
    top: 12px;
    height: calc(100vh - 24px);
  }
}

#calendar {
  height: 100%;
  font-size: 13px;
}

/* ─── Status messages ─────────────────────────────────────────── */
#update {
  font-size: 0.95em;
  color: #333;
  margin-bottom: 8px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.3s;
}
#update.success { color: #198754; }
#update.error { color: #dc3545; }

/* Sidebar collapsed state */
#external-events.collapsed > *:not(.sidebar-toggle),
#prof-list.collapsed > *:not(.sidebar-toggle) {
  display: none;
}

/* ─── Filter info ─────────────────────────────────────────────── */
#filter-info {
  font-size: 0.95em;
  color: #333;
  margin-bottom: 8px;
}

/* ─── Grouped view ────────────────────────────────────────────── */
.group-btn {
  width: 100%;
  text-align: left;
  margin: 4px 0;
}
.group-btn.active {
  font-weight: 700;
}
.subj-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid #f1f1f1;
}
.subj-row label { margin: 0; cursor: pointer; }
.muted { opacity: .7; font-size: 0.92em; }

/* ─── Lists ───────────────────────────────────────────────────── */
.list {
  margin: auto;
  font-size: 1.05em;
}
.list li {
  margin-bottom: 0.5em;
}

/* ─── Alerts ──────────────────────────────────────────────────── */
.alert-container {
  max-width: 900px;
  margin: 8px auto;
}
.alert-container .alert {
  margin-bottom: 6px;
}

/* ─── Home buttons ────────────────────────────────────────────── */
.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

/* ─── Tables (reports) ────────────────────────────────────────── */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ─── FullCalendar tweaks ─────────────────────────────────────── */

/*
 * core/main.min.css hides .fc-bgevent-skeleton and .fc-bgevent-container
 * globally. daygrid/main.min.css never re-enables them, so background
 * holiday events are invisible in month view. Override here.
 */
.fc-dayGrid-view .fc-bgevent-skeleton,
.fc-dayGrid-view .fc-bgevent-container {
  display: block;
}

.fc-toolbar {
  flex-wrap: wrap !important;
  gap: 6px;
}

.fc-toolbar .fc-left,
.fc-toolbar .fc-right,
.fc-toolbar .fc-center {
  margin-bottom: 4px;
}

#calendar {
  border: 1px solid #dbe4ff;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.08);
}

.fc-toolbar.fc-header-toolbar {
  margin-bottom: 0;
  padding: 10px 12px;
  background: linear-gradient(90deg, #eff6ff 0%, #f5f3ff 100%);
  border-bottom: 1px solid #dbe4ff;
}

.fc-button-primary {
  background: #4f46e5 !important;
  border-color: #4338ca !important;
}

.fc-button-primary:hover,
.fc-button-primary:focus {
  background: #4338ca !important;
  border-color: #3730a3 !important;
}

.fc-button-primary.fc-button-active {
  background: #0ea5e9 !important;
  border-color: #0284c7 !important;
}

#calendar .fc-event {
  border: 0 !important;
  border-left: 4px solid rgba(0, 0, 0, 0.2) !important;
  border-radius: 8px !important;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.15);
}

#calendar .fc-event .fc-title,
#calendar .fc-event .fc-list-item-title,
#calendar .fc-event-title,
#calendar .fc-event-main {
  color: #1e293b !important;
}

#calendar .fc-time-grid-event .fc-time,
#calendar .fc-time-grid-event .fc-title {
  font-weight: 600;
}

#calendar .fc-unthemed td.fc-today {
  background: #eef2ff;
}

/* ═══ MOBILE (≤ 768px) ════════════════════════════════════════ */
@media (max-width: 768px) {
  main {
    padding: 8px;
  }

  h2 {
    font-size: 1.2em;
    margin-bottom: 8px;
  }

  /* Stack vertically: calendar FIRST, sidebar BELOW */
  #wrap {
    flex-direction: column;
  }

  #external-events,
  #prof-list {
    width: 100%;
    max-height: none;
    position: static;
    margin-bottom: 10px;
    order: 2;  /* sidebar goes second */
  }

  #calendar-container {
    width: 100%;
    min-width: 100%;
    position: static;
    height: auto;
    order: 1;  /* calendar goes first */
  }

  #calendar {
    height: 70vh;
    min-height: 400px;
    font-size: 11px;
  }

  /* Smaller toolbar buttons */
  .fc-button {
    padding: 4px 8px !important;
    font-size: 12px !important;
  }

  .fc-toolbar h2 {
    font-size: 1em !important;
  }

  /* Event cards: smaller text */
  .fc-event {
    font-size: 11px !important;
    padding: 2px 3px !important;
  }

  /* Sidebar events: more compact */
  #external-events .fc-event {
    margin: 4px 0;
    padding: 4px;
    font-size: 12px;
  }

  /* Prof list buttons: stack tighter */
  #prof-list .d-flex {
    flex-direction: column;
    gap: 2px !important;
  }

  /* Home: buttons wrap nicely */
  .btn-sm {
    font-size: 13px;
    padding: 5px 10px;
  }
}

/* ═══ TABLET (769px - 1024px) ═════════════════════════════════ */
@media (min-width: 769px) and (max-width: 1024px) {
  #external-events,
  #prof-list {
    width: 250px;
    min-width: 200px;
    font-size: 13px;
  }

  #calendar {
    font-size: 12px;
  }

  .fc-event {
    font-size: 11px !important;
  }
}

/* ═══ TOUCH DEVICES ═══════════════════════════════════════════ */
@media (pointer: coarse) {
  /* Larger touch targets for sidebar events */
  #external-events .fc-event {
    min-height: 44px;
    padding: 8px 10px;
    margin: 6px 0;
    font-size: 14px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
  }

  /* Larger calendar events for touch drag/resize */
  .fc-event {
    min-height: 28px !important;
  }

  /* Bigger toolbar buttons */
  .fc-button {
    min-height: 40px !important;
    min-width: 40px !important;
    padding: 6px 12px !important;
  }

  /* Wider time slots for easier drop targets */
  .fc-time-grid .fc-slats td {
    height: 2em !important;
  }

  /* Assignment group headers: touch-friendly */
  #external-events-list > div[style*="background:#e9ecef"] {
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}

/* ═══ Print ═══════════════════════════════════════════════════ */
@media print {
  .site-header,
  #external-events,
  #prof-list,
  .alert-container {
    display: none !important;
  }

  #calendar-container {
    width: 100% !important;
    position: static !important;
    height: auto !important;
  }

  #wrap {
    display: block !important;
  }
}