/* Teacher Booking Table - Semantic CSS with Design System Integration */

/* Light Theme Variables */
:root {
  --booking-surface: var(--surface);
  --booking-surface-hover: #f8fafc;
  --booking-border: var(--border);
  --booking-border-subtle: var(--border-subtle);
  --booking-text: var(--text);
  --booking-text-muted: var(--muted);
  --booking-primary: var(--accent);
  --booking-primary-hover: var(--accent-strong);
  --booking-danger: var(--danger);
  --booking-danger-hover: #dc2626;
  --booking-danger-bg: #fef2f2;
  --booking-danger-text: #991b1b;
  --booking-success: var(--success);
  --booking-success-bg: #f0fdf4;
  --booking-success-text: #166534;
  --booking-radius: var(--radius);
  --booking-shadow: var(--shadow-sm);
  --booking-shadow-hover: var(--shadow-md);
  --booking-dur-fast: var(--dur-fast);
  --booking-dur-base: var(--dur-base);
  --booking-ease: var(--ease);
  --booking-spacing-xs: var(--space-1);
  --booking-spacing-sm: var(--space-2);
  --booking-spacing-md: var(--space-3);
  --booking-spacing-lg: var(--space-4);
  --booking-spacing-xl: var(--space-5);
  --booking-spacing-2xl: var(--space-6);
}

/* Dark Theme Variables */
html[data-theme="dark"] {
  --booking-surface: var(--surface);
  --booking-surface-hover: #1e293b;
  --booking-border: var(--border);
  --booking-border-subtle: var(--border-subtle);
  --booking-text: var(--text);
  --booking-text-muted: var(--muted);
  --booking-primary: var(--accent);
  --booking-primary-hover: var(--accent-strong);
  --booking-danger: var(--danger);
  --booking-danger-hover: #f87171;
  --booking-danger-bg: rgba(239, 68, 68, 0.1);
  --booking-danger-text: #fca5a5;
  --booking-success: var(--success);
  --booking-success-bg: rgba(34, 197, 94, 0.1);
  --booking-success-text: #86efac;
}

/* Page Container */
.booking-page-container {
  min-width: 1300px;
  margin: 0 auto;
  padding: var(--booking-spacing-2xl) var(--booking-spacing-lg);
  width: 100%;
}

/* Page Header */
.booking-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--booking-spacing-lg);
  margin-bottom: var(--booking-spacing-2xl);
}

.booking-header-content {
  flex: 1;
}

.booking-page-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--booking-text);
  margin: 0 0 var(--booking-spacing-sm);
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.booking-page-subtitle {
  font-size: 14px;
  color: var(--booking-text-muted);
  margin: 0;
  line-height: 1.5;
}

/* Back Link */
.booking-back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--booking-spacing-sm);
  padding: var(--booking-spacing-sm) var(--booking-spacing-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--booking-text-muted);
  text-decoration: none;
  border-radius: var(--booking-radius-sm);
  transition: all var(--booking-dur-fast) var(--booking-ease);
}

.booking-back-link:hover {
  background-color: var(--booking-surface-hover);
  color: var(--booking-text);
}

.booking-back-icon {
  font-size: 20px;
  transition: transform var(--booking-dur-fast) var(--booking-ease);
}

.booking-back-link:hover .booking-back-icon {
  transform: translateX(-2px);
}

.booking-back-text {
  font-size: 14px;
}

/* Main Content */
.booking-main-content {
  width: 100%;
}

/* Message Notifications */
.booking-message {
  display: flex;
  align-items: center;
  gap: var(--booking-spacing-sm);
  padding: var(--booking-spacing-md) var(--booking-spacing-lg);
  border-radius: 8px;
  margin-bottom: var(--booking-spacing-lg);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--booking-dur-base) var(--booking-ease);
}

.booking-message-icon {
  font-size: 16px;
}

.booking-message-text {
  flex: 1;
}

.booking-message-error {
  background-color: var(--booking-danger-bg);
  color: var(--booking-danger-text);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

html[data-theme="dark"] .booking-message-error {
  background-color: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.booking-message-success {
  background-color: var(--booking-success-bg);
  color: var(--booking-success-text);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

html[data-theme="dark"] .booking-message-success {
  background-color: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
  color: #86efac;
}

.booking-message-fadeout {
  opacity: 0;
  transform: translateY(-10px);
}

/* Table Container */
.booking-table-container {
  width: 100%;
}

/* Dark Theme Variables */
html[data-theme="dark"] {
  --booking-surface: var(--surface);
  --booking-surface-hover: #1e293b;
  --booking-border: var(--border);
  --booking-border-subtle: var(--border-subtle);
  --booking-text: var(--text);
  --booking-text-muted: var(--muted);
  --booking-primary: var(--accent);
  --booking-primary-hover: var(--accent-strong);
  --booking-danger: var(--danger);
  --booking-danger-hover: #f87171;
  --booking-danger-bg: rgba(239, 68, 68, 0.1);
  --booking-danger-text: #fca5a5;
  --booking-success: var(--success);
  --booking-success-bg: rgba(34, 197, 94, 0.1);
  --booking-success-text: #86efac;
}

/* Main Content Wrapper */
.booking-content-wrapper {
  max-width: 100%;
  width: 100%;
  margin: 0;
}

/* Card Container */
.booking-card {
  background-color: var(--booking-surface);
  border-radius: var(--booking-radius);
  box-shadow: var(--booking-shadow);
  border: 1px solid var(--booking-border);
  overflow: hidden;
  transition: box-shadow var(--booking-dur-base) var(--booking-ease),
              border-color var(--booking-dur-base) var(--booking-ease);
  display: flex;
  flex-direction: column;
  min-height: 600px; /* Fixed height for stability */
  min-width: 0; /* Fix for grid item sizing */
  width: 100%;
}

.booking-card:hover {
  box-shadow: var(--booking-shadow-hover);
}

/* Table Scroll Wrapper for Responsive Design */
.booking-table-scroll-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  flex-grow: 1; /* Allow table to fill space */
}

/* Main Table Structure */
.booking-data-table {
  width: 100%;
  text-align: left;
  border-collapse: collapse;
  font-size: 14px;
  font-family: var(--font-family);
  table-layout: fixed; /* Fix column widths */
}

.booking-data-table th:nth-child(1) { width: 5%; } /* ID */
.booking-data-table th:nth-child(2) { width: 25%; } /* Student */
.booking-data-table th:nth-child(3) { width: 30%; } /* Date & Time */
.booking-data-table th:nth-child(4) { width: 20%; } /* Duration */
.booking-data-table th:nth-child(5) { width: 20%; } /* Action */

/* Table Header */
.booking-table-head {
  background-color: var(--booking-surface-hover);
  border-bottom: 1px solid var(--booking-border-subtle);
}

.booking-header-cell {
  padding: var(--booking-spacing-md) var(--booking-spacing-xl);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--booking-text-muted);
  white-space: nowrap;
}

.booking-header-cell-center {
  text-align: center;
}

.booking-header-cell-right {
  text-align: right;
}

.booking-header-text {
  display: inline-block;
}

/* Table Body */
.booking-table-body {
  border-top: none;
}

/* Table Rows */
.booking-table-row {
  border-bottom: 1px solid var(--booking-border-subtle);
  transition: background-color var(--booking-dur-fast) var(--booking-ease);
}

.booking-table-row:hover {
  background-color: var(--booking-surface-hover);
}

.booking-table-row:last-child {
  border-bottom: none;
}

/* Table Cells */
.booking-cell {
  padding: var(--booking-spacing-lg) var(--booking-spacing-xl);
  vertical-align: middle;
  transition: background-color var(--booking-dur-fast) var(--booking-ease);
}

.booking-cell-center {
  text-align: center;
}

.booking-cell-right {
  text-align: right;
}

/* Cell ID */
.booking-cell-id {
  font-size: 13px;
  font-weight: 500;
  color: var(--booking-text-muted);
  font-family: var(--font-heading);
}

/* Student Information */
.booking-student-info {
  display: flex;
  align-items: center;
  gap: var(--booking-spacing-md);
}

.booking-student-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-color: var(--booking-primary);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.booking-student-initials {
  font-size: 12px;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
}

.booking-student-details {
  display: flex;
  flex-direction: column;
  gap: var(--booking-spacing-xs);
}

.booking-student-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--booking-text);
}

.booking-student-email {
  font-size: 12px;
  color: var(--booking-text-muted);
}

/* Date and Time Information */
.booking-datetime-info {
  display: flex;
  flex-direction: column;
  gap: var(--booking-spacing-sm);
}

.booking-datetime-date,
.booking-datetime-time {
  display: flex;
  align-items: center;
  gap: var(--booking-spacing-sm);
  color: var(--booking-text);
}

.booking-datetime-date {
  font-size: 14px;
  font-weight: 400;
}

.booking-datetime-time {
  font-size: 12px;
  color: var(--booking-text-muted);
}

.booking-datetime-icon {
  font-size: 16px;
  color: var(--booking-text-muted);
}

/* Duration */
.booking-duration {
  font-size: 14px;
  color: var(--booking-text);
  font-weight: 400;
}

/* Action Form */
.booking-action-form {
  display: inline-flex;
}

/* Cancel Button */
.booking-cancel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--booking-spacing-sm);
  padding: var(--booking-spacing-sm) var(--booking-spacing-md);
  font-size: 13px;
  font-weight: 500;
  color: #ffffff;
  background-color: var(--booking-danger);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--booking-dur-fast) var(--booking-ease);
  box-shadow: 0 1px 2px rgba(239, 68, 68, 0.2);
}

.booking-cancel-btn:hover {
  background-color: var(--booking-danger-hover);
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.3);
  transform: translateY(-1px);
}

.booking-cancel-btn:active {
  transform: translateY(0);
}

.booking-cancel-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.booking-cancel-btn:focus-visible {
  outline: 2px solid var(--booking-danger);
  outline-offset: 2px;
}

.booking-cancel-icon {
  font-size: 16px;
}

.booking-cancel-text {
  font-size: 13px;
}

/* Pagination */
.booking-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--booking-spacing-lg);
  padding: var(--booking-spacing-lg) var(--booking-spacing-xl);
  background-color: var(--booking-surface);
  border-top: 1px solid var(--booking-border-subtle);
  margin-top: auto; /* Push to bottom */
}

.booking-pagination-info {
  font-size: 14px;
  color: var(--booking-text-muted);
}

.booking-pagination-highlight {
  font-weight: 600;
  color: var(--booking-text);
}

.booking-pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--booking-spacing-sm);
}

.booking-pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background-color: var(--booking-surface);
  border: 1px solid var(--booking-border-subtle);
  border-radius: 6px;
  color: var(--booking-text-muted);
  cursor: pointer;
  transition: all var(--booking-dur-fast) var(--booking-ease);
}

.booking-pagination-btn.active {
  background-color: var(--booking-primary);
  border-color: var(--booking-primary);
  color: #ffffff;
}

.booking-pagination-btn:hover:not(:disabled) {
  background-color: var(--booking-surface-hover);
  border-color: var(--booking-border);
  color: var(--booking-text);
}

.booking-pagination-btn:focus-visible {
  outline: 2px solid var(--booking-primary);
  outline-offset: 2px;
}

.booking-pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.booking-pagination-ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--booking-text-muted);
  cursor: default;
}

.booking-pagination-btn .material-symbols-outlined {
  font-size: 20px;
}

/* Empty State */
.booking-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--booking-spacing-2xl) var(--booking-spacing-xl);
  text-align: center;
}

.booking-empty-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--booking-surface-hover);
  margin-bottom: var(--booking-spacing-lg);
}

.booking-empty-icon-symbol {
  font-size: 32px;
  color: var(--booking-text-muted);
}

.booking-empty-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--booking-text);
  margin: 0 0 var(--booking-spacing-sm);
  font-family: var(--font-heading);
}

.booking-empty-description {
  font-size: 14px;
  color: var(--booking-text-muted);
  margin: 0;
  max-width: 320px;
}

/* Responsive Design - Tablet */
@media (max-width: 1024px) {
  .booking-header-cell {
    padding: var(--booking-spacing-md) var(--booking-spacing-lg);
  }

  .booking-cell {
    padding: var(--booking-spacing-md) var(--booking-spacing-lg);
  }

  .booking-pagination {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .booking-pagination-info {
    margin-bottom: var(--booking-spacing-sm);
  }

  .booking-pagination-controls {
    justify-content: center;
  }
}

/* Responsive Design - Mobile */
@media (max-width: 640px) {
  .booking-header-cell,
  .booking-cell {
    padding: var(--booking-spacing-md);
  }

  .booking-student-info {
    gap: var(--booking-spacing-sm);
  }

  .booking-student-avatar {
    width: 36px;
    height: 36px;
  }

  .booking-student-initials {
    font-size: 11px;
  }

  .booking-student-name {
    font-size: 13px;
  }

  .booking-student-email {
    font-size: 11px;
  }

  .booking-datetime-date {
    font-size: 13px;
  }

  .booking-datetime-time {
    font-size: 11px;
  }

  .booking-datetime-icon {
    font-size: 14px;
  }

  .booking-duration {
    font-size: 13px;
  }

  .booking-cancel-btn {
    padding: var(--booking-spacing-sm);
    gap: var(--booking-spacing-xs);
  }

  .booking-cancel-icon {
    font-size: 14px;
  }

  .booking-cancel-text {
    font-size: 12px;
  }

  .booking-empty-state {
    padding: var(--booking-spacing-xl) var(--booking-spacing-md);
  }

  .booking-empty-icon {
    width: 64px;
    height: 64px;
  }

  .booking-empty-icon-symbol {
    font-size: 28px;
  }

  .booking-empty-title {
    font-size: 18px;
  }

  .booking-empty-description {
    font-size: 13px;
  }
}

/* Focus Visible Styles for Accessibility */
*:focus-visible {
  outline: 2px solid var(--booking-primary);
  outline-offset: 2px;
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .booking-card {
    border-width: 2px;
  }

  .booking-table-head {
    border-bottom-width: 2px;
  }

  .booking-table-row {
    border-bottom-width: 1px;
  }

  .booking-header-cell {
    font-weight: 700;
  }

  .booking-cancel-btn {
    border: 2px solid var(--booking-border-subtle);
  }
}

/* Print Styles */
@media print {
  .booking-pagination {
    display: none;
  }

  .booking-cancel-btn {
    display: none;
  }

  .booking-card {
    box-shadow: none;
    border: 1px solid #000;
  }

  .booking-table-row {
    break-inside: avoid;
  }
}