/* ===== ADMIN DASHBOARD STYLES ===== */

.admin-body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 24px;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.admin-brand .logo-accent {
    color: var(--accent);
}

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.admin-tab {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-align: left;
    font-family: inherit;
}

.admin-tab:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.admin-tab.active {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
}

.admin-footer-nav {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition);
}

.btn-back:hover {
    color: var(--accent);
}

/* Main Content */
.admin-main {
    flex: 1;
    margin-left: 260px;
    padding: 40px;
    max-width: 1200px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.admin-stats {
    display: flex;
    gap: 16px;
}

.stat-badge {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

/* Panels */
.admin-panel {
    display: none;
    animation: fadeIn 0.4s ease;
}

.admin-panel.active {
    display: block;
}

/* Forms */
.admin-form-glass {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.admin-form-glass h2 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.admin-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group .required {
    color: #ef4444;
}

.form-group input,
.form-group textarea {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition);
}

.form-group input[type="color"] {
    padding: 2px 6px;
    height: 44px;
    cursor: pointer;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    margin-top: 4px;
}

.form-actions {
    display: flex;
    gap: 16px;
    margin-top: 12px;
}

/* Dynamic Grids */
.admin-list-container h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.admin-item-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s;
}

.admin-item-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
}

.admin-item-img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
}

.admin-item-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

.admin-item-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.admin-item-meta {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    display: flex;
    justify-content: space-between;
}

.admin-item-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.btn-icon {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 8px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}

.btn-edit {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-edit:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-delete {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

/* Empty State */
.admin-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-style: italic;
}

@media (max-width: 900px) {
    .admin-layout {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
        flex-direction: row;
        align-items: center;
        padding: 16px 24px;
        gap: 24px;
        z-index: 100;
    }

    .admin-brand {
        margin-bottom: 0;
    }

    .admin-nav {
        flex-direction: row;
        gap: 8px;
    }

    .admin-tab {
        padding: 8px 12px;
        font-size: 0.9rem;
    }

    .admin-tab svg {
        display: none;
    }

    .admin-footer-nav {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
        margin-left: auto;
    }

    .admin-main {
        margin-left: 0;
        padding: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-window {
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    margin-bottom: 0;
    position: relative;
    animation: modalScale 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalScale {
    from {
        transform: scale(0.9);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.modal-header h2 {
    margin-bottom: 0;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s;
}

.btn-close:hover {
    color: #ef4444;
}

/* Lessons List in Modal */
.lessons-list-container {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.admin-lessons-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.lesson-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.lesson-item:hover {
    background: rgba(255, 255, 255, 0.06);
}

.lesson-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.lesson-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.lesson-meta {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.lesson-actions {
    display: flex;
    gap: 8px;
}

.btn-lesson-edit {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: none;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
}

.btn-lesson-delete {
    padding: 6px 12px;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: none;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
}

.btn-lessons-manage {
    background: rgba(37, 99, 235, 0.2);
    color: var(--accent);
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.btn-lessons-manage:hover {
    background: rgba(37, 99, 235, 0.3);
}