/* ============================================================
   INNOVEDU CENTER COMPETITION SITE - ORGANIZER DASHBOARD STYLES
   ============================================================ */

.admin-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.admin-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.admin-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.admin-user-pill {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.4rem 0.85rem;
  background: var(--bg-surface-alt);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Tabs Navigation */
.admin-nav-tabs {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  display: flex;
  gap: 1.75rem;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.85rem 0.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--primary);
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-badge {
  background: var(--bg-surface-alt);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.tab-btn.active .tab-badge {
  background: var(--primary-light);
  color: var(--primary);
}

/* Main Container */
.admin-main {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
  flex: 1;
}

/* Exam Cards Grid */
.exam-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.exam-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.15s, box-shadow 0.15s;
}

.exam-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}

.exam-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.exam-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.exam-card-subject {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.exam-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 1rem 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.exam-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* Question Editor Live KaTeX Preview */
.editor-split {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.5rem;
}

.preview-pane {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  font-size: 0.95rem;
}

.preview-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.05em;
}

/* Data Table Component */
.data-table-container {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 1.5rem;
}

.table-toolbar {
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background: var(--bg-surface-alt);
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 0.9rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: #f8fafc;
}

/* Media Dropzone */
.media-dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  background: var(--bg-surface-alt);
  transition: all 0.2s ease;
}

.media-dropzone:hover {
  border-color: var(--primary);
  background: #eff6ff;
}

.media-dropzone-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}