/* =====================================================
   DIMMS Lab Meeting Schedule Stylesheet
   ===================================================== */

/* Schedule App Container */
#schedule-app {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* =====================================================
   Header
   ===================================================== */

.schedule-header {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
  color: white;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.header-left {
  flex: 1;
}

.back-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.back-link:hover {
  color: white;
}

.header-center {
  flex: 2;
  text-align: center;
}

.header-center h1 {
  margin: 0 0 var(--spacing-xs) 0;
  font-size: 1.75rem;
}

.header-center .subtitle {
  margin: 0;
  opacity: 0.9;
  font-size: 1rem;
}

.header-right {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--spacing-sm);
}

.user-status {
  font-size: 0.875rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
}

.btn-login, .btn-logout {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-login {
  background: white;
  color: var(--primary-blue);
  border: none;
}

.btn-login:hover {
  background: var(--accent-gold);
  color: white;
}

.btn-logout {
  background: transparent;
  color: white;
  border: 1px solid white;
}

.btn-logout:hover {
  background: white;
  color: var(--primary-blue);
}

/* =====================================================
   Modal
   ===================================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  max-width: 400px;
  width: 90%;
  position: relative;
}

.close-modal {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.close-modal:hover {
  color: var(--text-primary);
}

.modal-content h2 {
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--primary-blue);
}

.modal-subtitle {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* =====================================================
   Meeting Format Section
   ===================================================== */

.meeting-format {
  background: var(--bg-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
}

.meeting-format h2 {
  color: var(--primary-blue);
  margin: 0 0 var(--spacing-lg) 0;
  text-align: center;
}

.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.format-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-cyan);
}

.format-time {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(0, 188, 212, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-xs);
}

.format-icon {
  font-size: 2rem;
  margin: var(--spacing-sm) 0;
}

.format-title {
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: var(--spacing-xs);
}

.format-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* =====================================================
   Current Meeting Card
   ===================================================== */

.current-meeting {
  margin-bottom: var(--spacing-xl);
}

.current-meeting h2 {
  color: var(--primary-blue);
  margin-bottom: var(--spacing-md);
}

.meeting-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  position: relative;
}

.meeting-card.featured {
  border: 3px solid var(--accent-cyan);
}

.meeting-card.today {
  border-color: var(--role-member);
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.05) 0%, white 100%);
}

.meeting-card.today::before {
  content: "TODAY";
  position: absolute;
  top: -10px;
  right: 20px;
  background: var(--role-member);
  color: white;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.meeting-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.meeting-date {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-blue);
}

.meeting-time {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.meeting-type-badge {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
}

.badge-online {
  background: rgba(59, 130, 246, 0.15);
  color: #3B82F6;
}

.badge-inperson {
  background: rgba(16, 185, 129, 0.15);
  color: #10B981;
}

.badge-cancelled {
  background: rgba(220, 53, 69, 0.15);
  color: var(--role-admin);
}

.meeting-card-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.meeting-detail {
  display: flex;
  flex-direction: column;
}

.meeting-detail-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: var(--spacing-xs);
}

.meeting-detail-value {
  font-weight: 500;
  color: var(--text-primary);
}

.meeting-detail-value a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.meeting-detail-value a:hover {
  text-decoration: underline;
}

.meeting-location {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: var(--radius-md);
}

.location-label {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

.zoom-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--accent-cyan);
  font-weight: 500;
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(0, 188, 212, 0.1);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.zoom-link:hover {
  background: rgba(0, 188, 212, 0.2);
}

.meeting-card-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.enter-hub-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: linear-gradient(135deg, var(--role-member) 0%, #20c997 100%);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

.enter-hub-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.signup-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--accent-gold);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.signup-btn:hover {
  background: #b8941f;
}

.signup-btn:disabled {
  background: var(--border-color);
  cursor: not-allowed;
}

/* =====================================================
   Schedule Table
   ===================================================== */

.upcoming-meetings, .past-meetings {
  margin-bottom: var(--spacing-xl);
}

.upcoming-meetings h2 {
  color: var(--primary-blue);
  margin-bottom: var(--spacing-md);
}

.table-container {
  overflow-x: auto;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.schedule-table {
  width: 100%;
  border-collapse: collapse;
}

.schedule-table th,
.schedule-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.schedule-table th {
  background: var(--primary-blue);
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
}

.schedule-table th:first-child {
  border-radius: var(--radius-lg) 0 0 0;
}

.schedule-table th:last-child {
  border-radius: 0 var(--radius-lg) 0 0;
}

.schedule-table tbody tr:hover {
  background: var(--bg-light);
}

.schedule-table tbody tr.cancelled {
  background: rgba(220, 53, 69, 0.05);
}

.schedule-table tbody tr.cancelled td {
  text-decoration: line-through;
  color: var(--text-secondary);
}

.schedule-table tbody tr.next-meeting {
  background: rgba(0, 188, 212, 0.08);
}

.loading-cell, .empty-cell {
  text-align: center;
  color: var(--text-secondary);
  padding: var(--spacing-xl) !important;
}

.loading-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.table-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.open-slot {
  color: var(--accent-gold);
  cursor: pointer;
}

.open-slot:hover {
  text-decoration: underline;
}

.clickable-row {
  cursor: pointer;
}

/* =====================================================
   Past Meetings Toggle
   ===================================================== */

.toggle-past-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: var(--spacing-md);
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
}

.toggle-past-btn:hover {
  background: var(--bg-light);
}

.toggle-past-btn .toggle-icon {
  transition: transform 0.2s;
}

.toggle-past-btn.expanded .toggle-icon {
  transform: rotate(90deg);
}

.past-container {
  margin-top: var(--spacing-md);
}

.past-table {
  opacity: 0.8;
}

/* =====================================================
   Admin Panel
   ===================================================== */

.admin-panel {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xl);
  border: 2px solid var(--role-admin);
}

.admin-panel h2 {
  color: var(--role-admin);
  margin: 0 0 var(--spacing-lg) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.admin-panel h2::before {
  content: "🔐";
}

.admin-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.admin-tab {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-light);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}

.admin-tab:hover {
  background: var(--border-color);
}

.admin-tab.active {
  background: var(--role-admin);
  color: white;
}

.admin-tab-content {
  display: none;
}

.admin-tab-content.active {
  display: block;
}

.admin-form {
  max-width: 800px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.form-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

.warning-text {
  color: var(--role-admin);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
}

.init-status {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: var(--radius-md);
  max-height: 200px;
  overflow-y: auto;
  font-family: monospace;
  font-size: 0.85rem;
}

/* =====================================================
   Roster Management
   ===================================================== */

.roster-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  max-height: 400px;
  overflow-y: auto;
}

.roster-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: var(--radius-md);
}

.roster-item-name {
  font-weight: 500;
}

.roster-item-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.btn-remove-member {
  padding: 4px 8px;
  background: transparent;
  color: var(--role-admin);
  border: 1px solid var(--role-admin);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.75rem;
}

.btn-remove-member:hover {
  background: var(--role-admin);
  color: white;
}

.roster-actions {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-end;
}

.roster-actions .form-group {
  flex: 1;
  margin-bottom: 0;
}

/* =====================================================
   Loading Spinner
   ===================================================== */

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =====================================================
   Sign Up Modal
   ===================================================== */

.signup-modal-content {
  max-width: 450px;
}

.signup-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.signup-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-light);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}

.signup-option:hover {
  border-color: var(--accent-cyan);
}

.signup-option.selected {
  border-color: var(--accent-cyan);
  background: rgba(0, 188, 212, 0.1);
}

.signup-option-icon {
  font-size: 1.5rem;
}

.signup-option-info h4 {
  margin: 0 0 var(--spacing-xs) 0;
  color: var(--primary-blue);
}

.signup-option-info p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* =====================================================
   Responsive Design
   ===================================================== */

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }

  .header-left, .header-right {
    justify-content: center;
    width: 100%;
  }

  .meeting-card-body {
    grid-template-columns: 1fr;
  }

  .schedule-table th,
  .schedule-table td {
    padding: var(--spacing-sm);
    font-size: 0.85rem;
  }

  .format-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  #schedule-app {
    padding: var(--spacing-md);
  }

  .schedule-header {
    padding: var(--spacing-md);
  }

  .header-center h1 {
    font-size: 1.25rem;
  }

  .format-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column;
  }

  .form-actions button {
    width: 100%;
  }
}