/* Schedule Page Styles */
#schedule {
  position: relative;
  z-index: 1;
  display: none;
  padding: 40px 20px;
  background: linear-gradient(
      rgba(241, 243, 245, 0.9),
      rgba(241, 243, 245, 0.9)
    ),
    url("https://www.transparenttextures.com/patterns/paper-fibers.png");
  min-height: 100vh;
  overflow-y: auto;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}
  
#schedule.visible {
  display: block;
  opacity: 1;
}

.schedule-heading {
  font-size: 2.8em;
  text-align: center;
  color: #2c3e50;
  margin-bottom: 30px;
  font-family: "Great Vibes", cursive;
  letter-spacing: 2px;
}

.schedule-container {
  display: flex;
  flex-direction: column;
  gap: 30px;
  width: 100%; /* Ensure full width */
}

.schedule-switcher {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.schedule-switch-btn {
  padding: 10px 20px;
  background: #3498db;
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1em;
  transition: all 0.3s ease;
}

.schedule-switch-btn:hover {
  background: #2980b9;
  transform: translateY(-2px);
}

.schedule-switch-btn.active {
  background: #6a3093;
  box-shadow: 0 4px 10px rgba(106, 48, 147, 0.3);
}

.schedule-section {
  display: none;
}

.schedule-section.active {
  display: block;
}

/* Calendar Styles */
#calendar-container {
  height: 70vh;
  margin-bottom: 20px;
}

.fc {
  font-family: "Georgia", serif;
}

.fc-toolbar-title {
  font-family: "Georgia", serif;
  font-size: 1.5em;
  color: #2c3e50;
}

.fc-button {
  background-color: #3498db !important;
  border-color: #3498db !important;
  color: white !important;
  transition: all 0.3s ease;
}

.fc-button:hover {
  background-color: #2980b9 !important;
  border-color: #2980b9 !important;
}

.fc-daygrid-day-number {
  color: #2c3e50;
}

.fc-daygrid-day.fc-day-today {
  background-color: rgba(52, 152, 219, 0.1) !important;
}

.fc-event {
  background-color: #3498db !important;
  border-color: #3498db !important;
  cursor: pointer;
  transition: all 0.3s ease;
}

.fc-event:hover {
  background-color: #2980b9 !important;
  border-color: #2980b9 !important;
}

/* Timetable Styles */
.timetable-container {
  width: 100%;
  overflow-x: auto;
}

.timetable {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.timetable th, .timetable td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: center;
}

.timetable th {
  background-color: #3498db;
  color: white;
  font-weight: bold;
}

.timetable td {
  background-color: white;
  height: 60px;
  vertical-align: middle;
  position: relative;
}

.timetable td.time-cell {
  background-color: #f1f3f5;
  font-weight: bold;
}

.timetable td.empty-cell {
  background-color: #f9f9f9;
}

.timetable td.has-event {
  background-color: rgba(52, 152, 219, 0.1);
  cursor: pointer;
}

.timetable td.has-event:hover {
  background-color: rgba(52, 152, 219, 0.2);
}

.timetable-event {
  position: absolute;
  top: 2px;
  left: 2px;
  right: 2px;
  bottom: 2px;
  background-color: #3498db;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-radius: 4px;
  font-size: 0.9em;
  padding: 2px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.timetable-event:hover {
  background-color: #2980b9;
  transform: scale(1.02);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

/* Event Modal Styles */
.event-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  justify-content: center;
  align-items: center;
}

.event-modal-content {
  background-color: white;
  padding: 30px;
  border-radius: 10px;
  width: 90%;
  max-width: 500px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  position: relative;
}

.event-modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  font-size: 1.5em;
  cursor: pointer;
  color: #7f8c8d;
  transition: color 0.3s ease;
}

.event-modal-close:hover {
  color: #e74c3c;
}

.event-modal-title {
  font-size: 1.5em;
  margin-bottom: 20px;
  color: #2c3e50;
  text-align: center;
}

.event-form-group {
  margin-bottom: 20px;
}

.event-form-group label {
  display: block;
  margin-bottom: 8px;
  color: #2c3e50;
  font-weight: bold;
}

.event-form-control {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-family: "Georgia", serif;
  font-size: 1em;
  transition: border-color 0.3s ease;
}

.event-form-control:focus {
  outline: none;
  border-color: #3498db;
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.event-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 30px;
}

.event-form-btn {
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-family: "Georgia", serif;
  font-size: 1em;
  transition: all 0.3s ease;
}

.event-form-btn-save {
  background-color: #3498db;
  color: white;
}

.event-form-btn-save:hover {
  background-color: #2980b9;
}

.event-form-btn-delete {
  background-color: #e74c3c;
  color: white;
}

.event-form-btn-delete:hover {
  background-color: #c0392b;
}

.event-form-btn-cancel {
  background-color: #95a5a6;
  color: white;
}

.event-form-btn-cancel:hover {
  background-color: #7f8c8d;
}

/* Add Event Button */
.add-event-btn {
  display: block;
  padding: 12px 25px;
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 30px;
  font-family: "Georgia", serif;
  font-size: 1em;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(52, 152, 219, 0.3);
  position: relative;
  z-index: 100;
  margin: 20px auto 40px;
}

.add-event-btn:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(52, 152, 219, 0.4);
}

/* Week Navigation */
.week-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.week-title {
  font-size: 1.5em;
  color: #2c3e50;
  font-weight: bold;
}

.week-nav-btn {
  background-color: #3498db;
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.week-nav-btn:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
}

/* USTC Timetable styles */
#ustc-timetable {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  font-family: "Georgia", serif;
}
  
#ustc-timetable th, #ustc-timetable td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: center;
  position: relative;
}
  
#ustc-timetable th {
  background-color: #3498db;
  color: white;
  font-weight: bold;
}
  
#ustc-timetable td {
  background-color: white;
  height: 50px;
  vertical-align: middle;
}
  
#ustc-timetable .period-header {
  background-color: #f1f3f5;
  font-weight: bold;
  text-align: center;
  vertical-align: middle;
  width: 80px;
}
  
#ustc-timetable td.has-class {
  background-color: rgba(52, 152, 219, 0.1);
}
  
/* Event overlay styling */
.ustc-event-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 10;
  background: rgba(52, 152, 219, 0.15);
  border-radius: 4px;
  box-shadow: inset 0 0 5px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}
  
.ustc-event-overlay:hover {
  background: rgba(52, 152, 219, 0.25);
  box-shadow: inset 0 0 8px rgba(0,0,0,0.2);
}
  
.course-name {
  font-weight: bold;
  font-size: 0.9em;
  margin-bottom: 2px;
  color: #2c3e50;
}
  
.instructor {
  font-size: 0.8em;
  font-style: italic;
  color: #34495e;
}
  
/* USTC Classes Table */
.ustc-classes-container {
  margin-top: 30px;
}
  
.ustc-classes-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}
  
.ustc-classes-table th, .ustc-classes-table td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}
  
.ustc-classes-table th {
  background-color: #3498db;
  color: white;
}
  
.days-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
  
.days-container label {
  display: flex;
  align-items: center;
  gap: 5px;
}
  
/* Schedule page container optimization */
#schedule .container {
  max-width: 95%; /* Wider container */
  width: 100%;
  padding: 30px 15px;
}
  
/* USTC timetable styling optimization */
.ustc-class-cell {
  position: relative;
  height: 100%;
}
  
.ustc-class-info {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 5px;
}
  
/* Time information styling */
.time-info {
  position: absolute;
  font-size: 0.7em;
  padding: 2px;
  z-index: 0;
  background: transparent;
}
  
.start-info {
  top: 2px;
  left: 2px;
}
  
.end-info {
  bottom: 2px;
  right: 2px;
}
  
/* Advanced event cell styling */
.event-cell {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}
  
.event-cell:hover {
  box-shadow: inset 0 0 12px rgba(0,0,0,0.1);
  transform: scale(1.01);
}
  
.event-cell::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #3498db, #9b59b6);
  transition: all 0.3s ease;
}
  
.event-cell:hover::before {
  height: 5px;
}
  
/* Fix cell merging issues in USTC Timetable */
.ustc-timetable-cell {
  position: relative;
  height: 50px;
}
  
.ustc-course-info {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 5px;
  z-index: 5;
  background: rgba(52, 152, 219, 0.1);
  border-radius: 4px;
}
  
.ustc-course-info:hover {
  background: rgba(52, 152, 219, 0.2);
}
  
/* Merged cell styling */
.merged-cell {
  border: none !important;
  background-color: transparent !important;
  padding: 0 !important;
  height: 0 !important;
}
  
.course-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
  text-align: center;
  position: relative;
}
  
/* Period number styling */
.period-number {
  background-color: #f8f9fa;
  font-weight: bold;
  border-right: 1px solid #ddd;
}
  
/* Overlapping course container styling */
.overlap-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  position: relative;
}
  
.overlap-course {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2px 0;
  overflow: hidden;
}

/* Weeks selection styling */
.weeks-container {
  margin-top: 10px;
  margin-bottom: 15px;
}
  
.weeks-title {
  font-weight: bold;
  margin-bottom: 8px;
  color: #2c3e50;
}
  
.weeks-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
  
.week-checkbox {
  display: flex;
  align-items: center;
}
  
.week-checkbox label {
  margin-left: 5px;
  font-size: 0.9em;
}
  
.week-display {
  font-size: 0.85em;
  color: #7f8c8d;
  margin-top: 5px;
  min-height: 20px;
}
  
/* My Timetable Styles */
.semester-selector {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}
  
.semester-dropdown {
  position: relative;
  display: inline-block;
  width: 100%;
  max-width: 300px;
}
  
.semester-dropdown-btn {
  background-color: #3498db;
  color: white;
  padding: 12px 20px;
  font-size: 16px;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  width: 100%;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 10px rgba(52, 152, 219, 0.3);
  transition: all 0.3s ease;
}
  
.semester-dropdown-btn:hover {
  background-color: #2980b9;
}
  
.semester-dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  width: 100%;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
  border-radius: 10px;
  overflow: hidden;
  margin-top: 5px;
}
  
.semester-dropdown-content a {
  color: #2c3e50;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  transition: background-color 0.3s;
}
  
.semester-dropdown-content a:hover {
  background-color: #3498db;
  color: white;
}
  
.semester-dropdown:hover .semester-dropdown-content {
  display: block;
}
  
.semester-dropdown:hover .semester-dropdown-btn {
  background-color: #2980b9;
}
  
/* Semester timetable container */
.semester-timetable-container {
  display: none;
  margin-top: 20px;
}
  
.semester-timetable-container.active {
  display: block;
}
  
.semester-title {
  text-align: center;
  font-size: 1.8em;
  margin-bottom: 20px;
  color: #2c3e50;
  font-family: "Georgia", serif;
}

/* Dark mode schedule page */
body.dark-mode #schedule {
  background: #121212;
}

body.dark-mode .schedule-heading {
  color: #ffffff;
}

body.dark-mode .schedule-switch-btn {
  background: #6a3093;
}

body.dark-mode .schedule-switch-btn:hover {
  background: #4a148c;
}

body.dark-mode .schedule-switch-btn.active {
  background: #3498db;
  box-shadow: 0 4px 10px rgba(52, 152, 219, 0.3);
}

body.dark-mode .fc-toolbar-title {
  color: #ffffff;
}

body.dark-mode .fc-button {
  background-color: #6a3093 !important;
  border-color: #6a3093 !important;
}

body.dark-mode .fc-button:hover {
  background-color: #4a148c !important;
  border-color: #4a148c !important;
}

body.dark-mode .fc-daygrid-day-number {
  color: #ffffff;
}

body.dark-mode .fc-daygrid-day.fc-day-today {
  background-color: rgba(106, 48, 147, 0.1) !important;
}

body.dark-mode .fc-event {
  background-color: #6a3093 !important;
  border-color: #6a3093 !important;
}

body.dark-mode .fc-event:hover {
  background-color: #4a148c !important;
  border-color: #4a148c !important;
}

body.dark-mode .timetable th {
  background-color: #6a3093;
}

body.dark-mode .timetable td {
  background-color: #2d2d2d;
  border-color: #444;
  color: #ffffff;
}

body.dark-mode .timetable td.time-cell {
  background-color: #3d3d3d;
}

body.dark-mode .timetable td.empty-cell {
  background-color: #333;
}

body.dark-mode .timetable td.has-event {
  background-color: rgba(106, 48, 147, 0.1);
}

body.dark-mode .timetable td.has-event:hover {
  background-color: rgba(106, 48, 147, 0.2);
}

body.dark-mode .timetable-event {
  background-color: #6a3093;
}

body.dark-mode .timetable-event:hover {
  background-color: #4a148c;
}

body.dark-mode .event-modal-content {
  background-color: #2d2d2d;
}

body.dark-mode .event-form-group label {
  color: #cccccc;
}

body.dark-mode .event-form-control {
  background-color: #3d3d3d;
  border-color: #555;
  color: #ffffff;
}

body.dark-mode .event-form-control:focus {
  border-color: #6a3093;
  box-shadow: 0 0 0 2px rgba(106, 48, 147, 0.2);
}

body.dark-mode .event-form-btn-save {
  background-color: #6a3093;
}

body.dark-mode .event-form-btn-save:hover {
  background-color: #4a148c;
}

body.dark-mode .add-event-btn {
  background-color: #6a3093;
  box-shadow: 0 4px 10px rgba(106, 48, 147, 0.3);
}

body.dark-mode .add-event-btn:hover {
  background-color: #4a148c;
  box-shadow: 0 6px 15px rgba(106, 48, 147, 0.4);
}

body.dark-mode .week-title {
  color: #ffffff;
}

body.dark-mode .week-nav-btn {
  background-color: #6a3093;
}

body.dark-mode .week-nav-btn:hover {
  background-color: #4a148c;
}

/* Dark mode USTC Timetable */
body.dark-mode #ustc-timetable th {
  background-color: #6a3093;
  border-color: #444;
}
  
body.dark-mode #ustc-timetable td {
  background-color: #2d2d2d;
  border-color: #444;
  color: #ffffff;
}
  
body.dark-mode #ustc-timetable .period-header {
  background-color: #3d3d3d;
  color: #ffffff;
}
  
body.dark-mode #ustc-timetable td.has-class {
  background-color: rgba(106, 48, 147, 0.1);
}
  
body.dark-mode .course-name {
  color: #ffffff;
}
  
body.dark-mode .instructor {
  color: #cccccc;
}
  
body.dark-mode .ustc-event-overlay {
  background: rgba(106, 48, 147, 0.15);
}
  
body.dark-mode .ustc-event-overlay:hover {
  background: rgba(106, 48, 147, 0.25);
}
  
body.dark-mode .ustc-classes-table th {
  background-color: #6a3093;
}
  
body.dark-mode .ustc-classes-table td {
  background-color: #2d2d2d;
  border-color: #444;
  color: #cccccc;
}

body.dark-mode .time-info {
  color: #ccc;
}

body.dark-mode .event-cell::before {
  background: linear-gradient(90deg, #6a3093, #9b59b6);
}

body.dark-mode .ustc-course-info {
  background: rgba(106, 48, 147, 0.1);
}
  
body.dark-mode .ustc-course-info:hover {
  background: rgba(106, 48, 147, 0.2);
}

body.dark-mode .period-number {
  background-color: #3d3d3d;
  border-color: #555;
}

body.dark-mode .weeks-title {
  color: #ffffff;
}

body.dark-mode .week-display {
  color: #bdc3c7;
}

body.dark-mode .semester-dropdown-content {
  background-color: #2d2d2d;
}
  
body.dark-mode .semester-dropdown-content a {
  color: #cccccc;
}
  
body.dark-mode .semester-dropdown-content a:hover {
  background-color: #6a3093;
  color: white;
}

body.dark-mode .semester-title {
  color: #ffffff;
}

/* Clock initial state */
.clock-toggle {
  display: none; /* Hidden by default */
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .schedule-switcher {
    flex-direction: column;
    align-items: center;
  }
    
  .timetable {
    font-size: 0.9em;
  }
    
  .timetable th, .timetable td {
    padding: 8px;
  }
    
  .event-modal-content {
    width: 95%;
    padding: 20px;
  }
}