/**
 * E-Learning Kampus - Modern UI/UX Stylesheet
 * Scoped under .el-app to avoid conflicts with any WordPress theme
 */

:root {
  --el-primary: #1e40af;
  --el-primary-hover: #1d4ed8;
  --el-primary-light: #eff6ff;
  --el-secondary: #0f172a;
  --el-success: #059669;
  --el-success-light: #ecfdf5;
  --el-warning: #d97706;
  --el-warning-light: #fffbeb;
  --el-danger: #dc2626;
  --el-danger-light: #fef2f2;
  --el-bg: #f8fafc;
  --el-surface: #ffffff;
  --el-border: #e2e8f0;
  --el-text: #1e293b;
  --el-text-muted: #64748b;
  --el-radius: 10px;
  --el-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --el-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --el-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

.el-app {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--el-text);
  background-color: transparent;
  line-height: 1.5;
  max-width: 1200px;
  margin: 20px auto;
  box-sizing: border-box;
}

.el-app * {
  box-sizing: border-box;
}

/* ==========================================================================
   Topbar & Brand Header
   ========================================================================== */
.el-header {
  background: var(--el-surface);
  border: 1px solid var(--el-border);
  border-radius: var(--el-radius);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--el-shadow-sm);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 15px;
}

.el-header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.el-header-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--el-primary), #3b82f6);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}

.el-header-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--el-secondary);
}

.el-header-subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--el-text-muted);
}

.el-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.el-user-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--el-bg);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  border: 1px solid var(--el-border);
}

.el-btn-logout {
  background: #fee2e2;
  color: var(--el-danger);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.el-btn-logout:hover {
  background: var(--el-danger);
  color: #fff;
}

/* ==========================================================================
   Stat Cards (Dosen Dashboard)
   ========================================================================== */
.el-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.el-stat-card {
  background: var(--el-surface);
  border: 1px solid var(--el-border);
  padding: 18px 20px;
  border-radius: var(--el-radius);
  box-shadow: var(--el-shadow-sm);
  display: flex;
  flex-direction: column;
}

.el-stat-title {
  font-size: 13px;
  color: var(--el-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.el-stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--el-secondary);
  margin-top: 6px;
}

/* ==========================================================================
   Cards & Content Layout
   ========================================================================== */
.el-card {
  background: var(--el-surface);
  border: 1px solid var(--el-border);
  border-radius: var(--el-radius);
  box-shadow: var(--el-shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.el-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--el-border);
  flex-wrap: wrap;
  gap: 10px;
}

.el-card-title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--el-secondary);
}

/* ==========================================================================
   Buttons & Badges
   ========================================================================== */
.el-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.el-btn-primary {
  background: var(--el-primary);
  color: #fff !important;
}

.el-btn-primary:hover {
  background: var(--el-primary-hover);
  box-shadow: 0 4px 8px rgba(30, 64, 175, 0.2);
}

.el-btn-secondary {
  background: #f1f5f9;
  color: #334155 !important;
  border-color: #cbd5e1;
}

.el-btn-secondary:hover {
  background: #e2e8f0;
}

.el-btn-success {
  background: var(--el-success);
  color: #fff !important;
}

.el-btn-success:hover {
  background: #047857;
}

.el-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.el-badge-success {
  background: var(--el-success-light);
  color: var(--el-success);
}

.el-badge-warning {
  background: var(--el-warning-light);
  color: var(--el-warning);
}

.el-badge-danger {
  background: var(--el-danger-light);
  color: var(--el-danger);
}

.el-badge-info {
  background: var(--el-primary-light);
  color: var(--el-primary);
}

/* ==========================================================================
   Exam Grid (Mahasiswa View)
   ========================================================================== */
.el-exam-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.el-exam-card {
  background: var(--el-surface);
  border: 1px solid var(--el-border);
  border-radius: var(--el-radius);
  box-shadow: var(--el-shadow-sm);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.el-exam-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--el-shadow);
}

.el-exam-card-course {
  font-size: 12px;
  font-weight: 700;
  color: var(--el-primary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.el-exam-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--el-secondary);
  margin: 0 0 10px;
}

.el-exam-card-meta {
  font-size: 13px;
  color: var(--el-text-muted);
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.el-exam-card-footer {
  border-top: 1px solid var(--el-border);
  padding-top: 16px;
}

/* ==========================================================================
   Interactive CBT Exam Mode (UX Focus)
   ========================================================================== */
.el-cbt-container {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

@media (max-width: 900px) {
  .el-cbt-container {
    grid-template-columns: 1fr;
  }
}

.el-cbt-sticky-nav {
  position: sticky;
  top: 20px;
  background: var(--el-surface);
  border: 1px solid var(--el-border);
  border-radius: var(--el-radius);
  padding: 20px;
  box-shadow: var(--el-shadow);
}

.el-cbt-timer-box {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  color: #fff;
  border-radius: 8px;
  padding: 14px;
  text-align: center;
  margin-bottom: 18px;
}

.el-cbt-timer-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #94a3b8;
}

.el-cbt-timer-countdown {
  font-size: 26px;
  font-weight: 800;
  font-family: monospace;
  color: #38bdf8;
  margin-top: 4px;
}

.el-qnav-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.el-qnav-btn {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--el-border);
  background: var(--el-bg);
  color: var(--el-text);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.15s ease;
}

.el-qnav-btn:hover {
  border-color: var(--el-primary);
  color: var(--el-primary);
}

.el-qnav-btn.answered {
  background: var(--el-primary);
  color: #fff;
  border-color: var(--el-primary);
}

/* CBT Question Box */
.el-question-card {
  background: var(--el-surface);
  border: 1px solid var(--el-border);
  border-radius: var(--el-radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--el-shadow-sm);
}

.el-question-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.el-question-text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--el-secondary);
  margin-bottom: 18px;
}

/* Option Cards (Modern Radio Replacement) */
.el-options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.el-option-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 2px solid var(--el-border);
  border-radius: 8px;
  cursor: pointer;
  background: #fff;
  transition: all 0.2s ease;
}

.el-option-card:hover {
  background: var(--el-primary-light);
  border-color: #93c5fd;
}

.el-option-card.selected {
  background: var(--el-primary-light);
  border-color: var(--el-primary);
}

.el-option-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #f1f5f9;
  color: #475569;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  transition: all 0.2s;
}

.el-option-card.selected .el-option-badge {
  background: var(--el-primary);
  color: #fff;
}

.el-option-card input[type="radio"] {
  display: none;
}

.el-option-text {
  font-size: 14px;
  color: var(--el-text);
  line-height: 1.5;
}

/* Textarea Esai */
.el-textarea {
  width: 100%;
  min-height: 120px;
  padding: 14px;
  border: 1px solid var(--el-border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  resize: vertical;
  background: #fff;
}

.el-textarea:focus {
  outline: none;
  border-color: var(--el-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* ==========================================================================
   Table & Responsive Wrapper
   ========================================================================== */
.el-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--el-border);
  border-radius: var(--el-radius);
  background: #fff;
}

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

.el-table th {
  background: #f8fafc;
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--el-text-muted);
  border-bottom: 1px solid var(--el-border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.el-table td {
  padding: 14px 18px;
  font-size: 14px;
  border-bottom: 1px solid var(--el-border);
  vertical-align: middle;
}

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

.el-table tr:hover td {
  background: #fcfdfe;
}