/* Student area & learning experience (App.Modules.Student*) */
.student-course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.student-course-card { background: #fff; border: 1px solid var(--border-color); border-radius: var(--border-radius); overflow: hidden; display: flex; flex-direction: column; }
.student-course-card img.student-thumb { width: 100%; height: 150px; object-fit: cover; background: #f1f5f9; display: block; }
.student-course-card .student-card-body { padding: 14px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.student-course-card .student-card-title { font-weight: 700; font-size: 0.98rem; line-height: 1.35; margin: 0; }
.student-course-card .student-card-title a { color: inherit; }
.student-course-card .student-card-meta { font-size: 0.8rem; color: var(--text-muted); display: flex; flex-wrap: wrap; gap: 10px; }
.student-course-card .student-card-footer { padding: 12px 16px; border-top: 1px solid var(--border-color); display: flex; gap: 8px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.student-progress-label { display: flex; justify-content: space-between; font-size: 0.78rem; font-weight: 600; color: var(--text-muted); margin-top: 4px; }
.student-progress-label + .progress-bar-container { margin-top: 4px; }
.student-wishlist-remove { position: absolute; top: 10px; right: 10px; width: 34px; height: 34px; border-radius: 50%; border: none; background: #fff; color: #db2777; box-shadow: 0 2px 6px rgba(0,0,0,.15); cursor: pointer; }
.student-thumb-wrap { position: relative; }
.student-badge-list { display: flex; flex-wrap: wrap; gap: 12px; }
.student-badge-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border: 1px solid var(--border-color); border-radius: 12px; background: #fff; }
.student-badge-item img { width: 36px; height: 36px; object-fit: contain; }
.student-user-card { display: flex; gap: 14px; align-items: center; }
.student-user-card ul { list-style: none; margin: 8px 0 0; padding: 0; font-size: 0.85rem; color: var(--text-muted); }
.student-user-card li { margin-bottom: 4px; }

/* Course player */
.student-player { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 24px; align-items: start; }
.student-player-stage { background: #0f172a; border-radius: var(--border-radius); overflow: hidden; min-height: 240px; color: #fff; position: relative; }
.student-player-stage .student-embed { position: relative; padding-top: 56.25%; }
.student-player-stage .student-embed iframe, .student-player-stage .student-embed .plyr { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.student-player-stage video { width: 100%; max-height: 520px; display: block; background: #000; }
.student-player-stage .student-audio { padding: 32px 24px; display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.student-player-stage .student-audio img { width: 120px; height: 120px; object-fit: cover; border-radius: 12px; }
.student-player-stage .student-audio audio { flex: 1; min-width: 240px; }
.student-player-stage .student-doc iframe { width: 100%; height: 560px; border: 0; background: #fff; display: block; }
.student-player-stage .student-image img { width: 100%; max-height: 560px; object-fit: contain; display: block; background: #000; }
.student-player-stage .student-placeholder { padding: 60px 24px; text-align: center; }
.student-player-stage .student-placeholder i { font-size: 3rem; color: #818cf8; margin-bottom: 12px; display: block; }
.student-player-nav { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 16px; }
.student-curriculum { max-height: calc(100vh - 180px); overflow-y: auto; }
.student-section { border-bottom: 1px solid var(--border-color); }
.student-section:last-child { border-bottom: none; }
.student-section-head { width: 100%; background: #f8fafc; border: none; text-align: left; padding: 12px 14px; font-weight: 700; font-size: 0.9rem; cursor: pointer; display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.student-section-head small { font-weight: 600; color: var(--text-muted); }
.student-section.collapsed .student-section-items { display: none; }
.student-section-items { list-style: none; margin: 0; padding: 4px 0; }
.student-lesson-item { display: flex; gap: 10px; align-items: center; padding: 9px 14px; font-size: 0.87rem; cursor: pointer; color: inherit; text-decoration: none; }
.student-lesson-item:hover { background: #f1f5f9; }
.student-lesson-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.student-lesson-item .student-lesson-icon { width: 18px; text-align: center; color: var(--text-muted); }
.student-lesson-item .student-lesson-title { flex: 1; min-width: 0; }
.student-lesson-item .student-lesson-tick { color: #cbd5e1; }
.student-lesson-item .student-lesson-tick.done { color: #10b981; }
.student-lesson-item .student-lesson-duration { font-size: 0.75rem; color: var(--text-muted); }

/* Quiz */
.student-quiz-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.student-quiz-timer { font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.student-quiz-timer.warning { color: #dc2626; }
.student-question { padding: 18px 0; border-bottom: 1px solid var(--border-color); }
.student-question:last-child { border-bottom: none; }
.student-question-title { font-weight: 700; margin: 0 0 12px; display: flex; gap: 8px; align-items: flex-start; }
.student-option { display: flex; gap: 10px; align-items: center; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: 10px; margin-bottom: 8px; cursor: pointer; }
.student-option input { accent-color: var(--primary); }
.student-option.correct { border-color: #10b981; background: #ecfdf5; }
.student-option.wrong { border-color: #ef4444; background: #fef2f2; }
.student-result-pass { color: #059669; }
.student-result-fail { color: #dc2626; }

/* Certificates / generic */
.student-certificate-frame { width: 100%; height: 640px; border: 1px solid var(--border-color); border-radius: var(--border-radius); background: #fff; }
.student-notification { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-bottom: 1px solid var(--border-color); }
.student-notification.unread { background: #f5f7ff; }
.student-notification .student-notification-body { flex: 1; min-width: 0; }
.student-notification .student-notification-title { font-weight: 700; }
.student-gateway-card { display: flex; align-items: center; gap: 10px; padding: 12px; border: 2px solid var(--border-color); border-radius: 12px; cursor: pointer; background: #fff; }
.student-gateway-card.selected { border-color: var(--primary); background: var(--primary-light); }
.student-gateway-card img { width: 40px; height: 28px; object-fit: contain; }

@media (max-width: 1100px) {
  .student-player { grid-template-columns: 1fr; }
  .student-curriculum { max-height: none; }
}