/* ================================================================
   LMS TBLT — Admin-Specific Styles
   Sidebar navigation, admin table actions, content hub, assessment forms
   ================================================================ */

/* ----------------------------------------------------------------
   1. SIDEBAR
   ---------------------------------------------------------------- */
.sidebar {
    width: 270px;
    background: var(--white);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--primary-50);
    color: var(--primary-600);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-header-icon svg {
    width: 22px;
    height: 22px;
}

.sidebar-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-700);
    line-height: 1.2;
}

.sidebar-logo span {
    color: var(--primary-400);
}

.sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.sidebar-section {
    margin-bottom: 8px;
}

.sidebar-section-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-400);
    padding: 8px 16px;
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    color: var(--gray-600);
    font-size: 14px;
    transition: var(--transition);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 2px;
}

.sidebar-link:hover {
    background-color: var(--primary-50);
    color: var(--primary-700);
}

.sidebar-link.active {
    background-color: var(--primary-50);
    color: var(--primary-700);
    font-weight: 600;
}

.sidebar-link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-link .link-badge {
    margin-left: auto;
    background: var(--primary-100);
    color: var(--primary-700);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-100);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-100);
    color: var(--primary-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 12px;
    color: var(--gray-400);
}

.sidebar-logout {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--gray-100);
    color: var(--gray-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.sidebar-logout:hover {
    background: var(--danger-light);
    color: var(--danger);
}

.sidebar-logout svg {
    width: 18px;
    height: 18px;
}

/* ----------------------------------------------------------------
   2. MOBILE MENU TOGGLE
   ---------------------------------------------------------------- */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 101;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--primary-600);
    color: var(--white);
    border: none;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: var(--primary-700);
}

.sidebar-toggle svg {
    width: 22px;
    height: 22px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 99;
    backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
    display: block;
}

@media (max-width: 1024px) {
    .sidebar-toggle {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }

    .sidebar.active {
        transform: translateX(0);
    }
}

/* ----------------------------------------------------------------
   3. ADMIN MAIN CONTENT OFFSET
   ---------------------------------------------------------------- */
.admin-layout .main-content {
    margin-left: 270px;
}

@media (max-width: 1024px) {
    .admin-layout .main-content {
        margin-left: 0;
        padding-top: 70px;
    }
}

/* ----------------------------------------------------------------
   4. ADMIN TABLE ACTIONS
   ---------------------------------------------------------------- */
.table-actions {
    display: flex;
    gap: 6px;
}

.action-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.action-btn svg {
    width: 16px;
    height: 16px;
}

.action-btn.edit {
    background: var(--primary-50);
    color: var(--primary-600);
}

.action-btn.edit:hover {
    background: var(--primary-100);
}

.action-btn.delete {
    background: var(--danger-light);
    color: var(--danger);
}

.action-btn.delete:hover {
    background: #FECACA;
}

.action-btn.view {
    background: var(--info-light);
    color: var(--info);
}

.action-btn.view:hover {
    background: #A5F3FC;
}

.action-btn.success {
    background: var(--success-light);
    color: var(--success);
}

.action-btn.success:hover {
    background: #A7F3D0;
}

/* ----------------------------------------------------------------
   5. MODULE CONTENT HUB
   ---------------------------------------------------------------- */
.content-hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.content-hub-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.content-hub-card:hover {
    border-color: var(--primary-300);
    background-color: var(--primary-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: inherit;
}

.content-hub-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.content-hub-icon svg {
    width: 24px;
    height: 24px;
}

.content-hub-icon.blue {
    background: var(--primary-50);
    color: var(--primary-600);
}

.content-hub-icon.green {
    background: var(--success-light);
    color: var(--success);
}

.content-hub-icon.orange {
    background: var(--warning-light);
    color: var(--warning);
}

.content-hub-icon.purple {
    background: #EDE9FE;
    color: #7C3AED;
}

.content-hub-icon.red {
    background: var(--danger-light);
    color: var(--danger);
}

.content-hub-icon.teal {
    background: var(--info-light);
    color: var(--info);
}

.content-hub-info {
    flex: 1;
    min-width: 0;
}

.content-hub-label {
    font-weight: 600;
    font-size: 14px;
    color: var(--gray-800);
}

.content-hub-count {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 2px;
}

.content-hub-arrow {
    color: var(--gray-300);
    transition: var(--transition);
    flex-shrink: 0;
}

.content-hub-card:hover .content-hub-arrow {
    color: var(--primary-500);
    transform: translateX(2px);
}

/* ----------------------------------------------------------------
   6. ASSESSMENT FORM
   ---------------------------------------------------------------- */
.assessment-form {
    max-width: 900px;
}

.feedback-section {
    background-color: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 24px;
    border: 1px solid var(--gray-200);
}

.feedback-section h3 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 16px;
}

.student-info-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    margin-bottom: 24px;
}

.student-info-card .student-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-100);
    color: var(--primary-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 20px;
    flex-shrink: 0;
}

.student-info-card .student-details {
    flex: 1;
}

.student-info-card .student-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--gray-900);
}

.student-info-card .student-nim {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 2px;
}

.student-info-card .student-module {
    font-size: 13px;
    color: var(--primary-600);
    margin-top: 2px;
}

/* ----------------------------------------------------------------
   7. ADMIN DASHBOARD WIDGETS
   ---------------------------------------------------------------- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-top: 24px;
}

.widget-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-800);
}

.recent-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.recent-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.recent-list-item:last-child {
    border-bottom: none;
}

.recent-list-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-50);
    color: var(--primary-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
    flex-shrink: 0;
}

.recent-list-info {
    flex: 1;
    min-width: 0;
}

.recent-list-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.recent-list-meta {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 2px;
}

/* ----------------------------------------------------------------
   8. ADMIN FILTER BAR
   ---------------------------------------------------------------- */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-bar .form-control,
.filter-bar .form-select {
    width: auto;
    min-width: 200px;
}

.search-input-wrapper {
    position: relative;
}

.search-input-wrapper .form-control {
    padding-left: 40px;
}

.search-input-wrapper svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--gray-400);
}

/* ----------------------------------------------------------------
   9. ADMIN MODULE DETAIL HEADER
   ---------------------------------------------------------------- */
.module-detail-header {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
    border-radius: var(--radius-lg);
    padding: 30px;
    color: var(--white);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.module-detail-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.module-detail-info h1 {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.module-detail-info p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

/* ----------------------------------------------------------------
   10. FILE UPLOAD AREA
   ---------------------------------------------------------------- */
.file-upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    background: var(--gray-50);
}

.file-upload-area:hover {
    border-color: var(--primary-300);
    background: var(--primary-50);
}

.file-upload-area.dragover {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.file-upload-area svg {
    width: 40px;
    height: 40px;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.file-upload-area p {
    font-size: 14px;
    color: var(--gray-500);
}

.file-upload-area .file-types {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 4px;
}

.file-upload-preview {
    margin-top: 16px;
}

.file-upload-preview img {
    max-width: 200px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

/* ----------------------------------------------------------------
   11. ADMIN DATA CARDS / SUMMARY CARDS
   ---------------------------------------------------------------- */
.summary-row {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 14px;
}

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

.summary-label {
    color: var(--gray-500);
    min-width: 140px;
    flex-shrink: 0;
}

.summary-value {
    color: var(--gray-800);
    font-weight: 500;
}

/* ----------------------------------------------------------------
   12. STATUS INDICATOR
   ---------------------------------------------------------------- */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.active {
    background: var(--success);
}

.status-dot.inactive {
    background: var(--gray-400);
}

.status-dot.pending {
    background: var(--warning);
}

/* ----------------------------------------------------------------
   13. RESPONSIVE DASHBOARD
   ---------------------------------------------------------------- */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .filter-bar {
        flex-direction: column;
    }

    .filter-bar .form-control,
    .filter-bar .form-select {
        width: 100%;
        min-width: auto;
    }

    .module-detail-header {
        flex-direction: column;
        text-align: center;
        padding: 24px;
    }

    .student-info-card {
        flex-direction: column;
        text-align: center;
    }

    .content-hub-grid {
        grid-template-columns: 1fr;
    }
}