/* ═══════════════════════════════════════════════════════════════════
   Advanced Learning Filter — Styles
   All rules scoped under #alf-container to prevent conflicts.
   RTL-first, Arabic-optimised with Tajawal font.
   ═══════════════════════════════════════════════════════════════════ */

/* ── Design Tokens ───────────────────────────────────────────────── */
#alf-container {
    --alf-font: 'Tajawal', 'Segoe UI', Tahoma, sans-serif;
    --alf-primary: #3b82f6;
    --alf-primary-dark: #2563eb;
    --alf-primary-light: #dbeafe;
    --alf-primary-glow: rgba(59, 130, 246, 0.25);
    --alf-accent: #f59e0b;
    --alf-bg: #f8fafc;
    --alf-surface: #ffffff;
    --alf-text: #0f172a;
    --alf-text-muted: #64748b;
    --alf-border: #e2e8f0;
    --alf-border-hover: #cbd5e1;
    --alf-radius: 12px;
    --alf-radius-sm: 8px;
    --alf-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --alf-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --alf-shadow-lg: 0 8px 30px rgba(15, 23, 42, 0.12);
    --alf-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

    /* Course badge */
    --alf-badge-courses: #8b5cf6;
    --alf-badge-training: #059669;
    --alf-badge-consulting: #dc2626;
}

/* ── Container Reset ─────────────────────────────────────────────── */
#alf-container {
    font-family: var(--alf-font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--alf-text);
    direction: rtl;
    text-align: right;
    box-sizing: border-box;
    padding: 4px 0;
}

#alf-container *,
#alf-container *::before,
#alf-container *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ── Sections ────────────────────────────────────────────────────── */
#alf-container .alf-section {
    margin-bottom: 20px;
    animation: alfFadeIn 0.3s ease;
}

#alf-container .alf-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 700;
    color: var(--alf-text);
    margin-bottom: 14px;
}

#alf-container .alf-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--alf-primary), var(--alf-primary-dark));
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    flex-shrink: 0;
}

/* ── Content Type Cards ──────────────────────────────────────────── */
#alf-container .alf-type-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

#alf-container .alf-type-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 8px;
    background: var(--alf-surface);
    border: 2px solid var(--alf-border);
    border-radius: var(--alf-radius);
    cursor: pointer;
    transition: all var(--alf-transition);
    text-align: center;
}

#alf-container .alf-type-card:hover {
    border-color: var(--alf-primary);
    box-shadow: var(--alf-shadow-md);
    transform: translateY(-2px);
}

#alf-container .alf-type-card.active {
    border-color: var(--alf-primary);
    background: var(--alf-primary-light);
    box-shadow: 0 0 0 4px var(--alf-primary-glow), var(--alf-shadow-md);
}

#alf-container .alf-type-card.active .alf-type-icon {
    color: var(--alf-primary-dark);
}

#alf-container .alf-type-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

#alf-container .alf-type-icon {
    color: var(--alf-text-muted);
    transition: color var(--alf-transition);
}

#alf-container .alf-type-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--alf-text);
}

/* ── Categories ──────────────────────────────────────────────────── */
#alf-container .alf-categories-wrap {
    max-height: 280px;
    overflow-y: auto;
    padding: 12px;
    background: var(--alf-surface);
    border: 1px solid var(--alf-border);
    border-radius: var(--alf-radius);
    scrollbar-width: thin;
    scrollbar-color: var(--alf-border) transparent;
}

#alf-container .alf-categories-wrap::-webkit-scrollbar {
    width: 5px;
}

#alf-container .alf-categories-wrap::-webkit-scrollbar-track {
    background: transparent;
}

#alf-container .alf-categories-wrap::-webkit-scrollbar-thumb {
    background: var(--alf-border);
    border-radius: 10px;
}

#alf-container .alf-cat-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

#alf-container .alf-cat-depth-1,
#alf-container .alf-cat-depth-2,
#alf-container .alf-cat-depth-3 {
    padding-right: 20px;
}

#alf-container .alf-cat-item {
    margin-bottom: 4px;
}

#alf-container .alf-cat-item > .alf-cat-label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--alf-radius-sm);
    cursor: pointer;
    transition: background var(--alf-transition);
}

#alf-container .alf-cat-item > .alf-cat-label:hover {
    background: var(--alf-bg);
}

/* Custom checkbox */
#alf-container .alf-cat-checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

#alf-container .alf-cat-checkmark {
    position: relative;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    border: 2px solid var(--alf-border-hover);
    border-radius: 5px;
    transition: all var(--alf-transition);
    background: var(--alf-surface);
}

#alf-container .alf-cat-checkbox:checked + .alf-cat-checkmark {
    background: var(--alf-primary);
    border-color: var(--alf-primary);
}

#alf-container .alf-cat-checkbox:checked + .alf-cat-checkmark::after {
    content: '';
    position: absolute;
    top: 3px;
    right: 6px;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 0 2.5px 2.5px;
    transform: rotate(-45deg);
}

#alf-container .alf-cat-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--alf-text);
    flex: 1;
}

#alf-container .alf-cat-count {
    font-size: 12px;
    color: var(--alf-text-muted);
    font-weight: 400;
}

/* Toggle button for parent categories */
#alf-container .alf-cat-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    background: var(--alf-bg);
    border-radius: 6px;
    cursor: pointer;
    color: var(--alf-text-muted);
    transition: all var(--alf-transition);
    margin-bottom: 2px;
}

#alf-container .alf-cat-toggle:hover {
    background: var(--alf-primary-light);
    color: var(--alf-primary);
}

#alf-container .alf-chevron {
    transition: transform var(--alf-transition);
}

#alf-container .alf-cat-toggle[aria-expanded="true"] .alf-chevron {
    transform: rotate(180deg);
}

#alf-container .alf-cat-children {
    display: none;
    overflow: hidden;
}

#alf-container .alf-cat-children.open {
    display: block;
    animation: alfSlideDown 0.25s ease;
}

/* ── Search Input ────────────────────────────────────────────────── */
#alf-container .alf-search-wrap {
    position: relative;
}

#alf-container .alf-search-input {
    width: 100%;
    padding: 12px 44px 12px 16px;
    font-family: var(--alf-font);
    font-size: 14px;
    color: var(--alf-text);
    background: var(--alf-surface);
    border: 2px solid var(--alf-border);
    border-radius: var(--alf-radius);
    outline: none;
    transition: border-color var(--alf-transition), box-shadow var(--alf-transition);
    direction: rtl;
}

#alf-container .alf-search-input::placeholder {
    color: var(--alf-text-muted);
}

#alf-container .alf-search-input:focus {
    border-color: var(--alf-primary);
    box-shadow: 0 0 0 4px var(--alf-primary-glow);
}

#alf-container .alf-search-icon {
    position: absolute;
    top: 50%;
    right: 14px;
    transform: translateY(-50%);
    color: var(--alf-text-muted);
    pointer-events: none;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
#alf-container .alf-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

#alf-container .alf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    font-family: var(--alf-font);
    font-size: 14px;
    font-weight: 700;
    border: 2px solid transparent;
    border-radius: var(--alf-radius-sm);
    cursor: pointer;
    transition: all var(--alf-transition);
    white-space: nowrap;
}

#alf-container .alf-btn-primary {
    flex: 1;
    background: linear-gradient(135deg, var(--alf-primary), var(--alf-primary-dark));
    color: #fff;
    border-color: var(--alf-primary);
}

#alf-container .alf-btn-primary:hover {
    box-shadow: 0 4px 16px var(--alf-primary-glow);
    transform: translateY(-1px);
}

#alf-container .alf-btn-ghost {
    background: transparent;
    color: var(--alf-text-muted);
    border-color: var(--alf-border);
}

#alf-container .alf-btn-ghost:hover {
    background: var(--alf-bg);
    border-color: var(--alf-border-hover);
    color: var(--alf-text);
}

#alf-container .alf-btn-outline {
    width: 100%;
    background: transparent;
    color: var(--alf-primary);
    border-color: var(--alf-primary);
}

#alf-container .alf-btn-outline:hover {
    background: var(--alf-primary-light);
}

/* ── Results Meta ────────────────────────────────────────────────── */
#alf-container .alf-results-meta {
    padding: 8px 0;
    font-size: 13px;
    color: var(--alf-text-muted);
    border-bottom: 1px solid var(--alf-border);
    margin-bottom: 14px;
}

/* ── Loading Spinner ─────────────────────────────────────────────── */
#alf-container .alf-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 40px 0;
    color: var(--alf-text-muted);
    font-size: 14px;
}

#alf-container .alf-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--alf-border);
    border-top-color: var(--alf-primary);
    border-radius: 50%;
    animation: alfSpin 0.7s linear infinite;
}

/* ── Result Cards Grid ───────────────────────────────────────────── */
#alf-container .alf-results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

#alf-container .alf-card {
    display: flex;
    gap: 14px;
    padding: 12px;
    background: var(--alf-surface);
    border: 1px solid var(--alf-border);
    border-radius: var(--alf-radius);
    text-decoration: none;
    color: inherit;
    transition: all var(--alf-transition);
}

#alf-container .alf-card:hover {
    border-color: var(--alf-primary);
    box-shadow: var(--alf-shadow-md);
    transform: translateY(-2px);
}

#alf-container .alf-card-thumb {
    position: relative;
    width: 100px;
    min-width: 100px;
    height: 80px;
    border-radius: var(--alf-radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

#alf-container .alf-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#alf-container .alf-card-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    padding: 2px 8px;
    font-size: 10px;
    font-weight: 700;
    border-radius: 20px;
    color: #fff;
}

#alf-container .alf-badge-courses {
    background: var(--alf-badge-courses);
}

#alf-container .alf-badge-training-bags {
    background: var(--alf-badge-training);
}

#alf-container .alf-badge-consulting {
    background: var(--alf-badge-consulting);
}

#alf-container .alf-card-body {
    flex: 1;
    min-width: 0;
}

#alf-container .alf-card-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--alf-text);
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

#alf-container .alf-card-excerpt {
    font-size: 12px;
    color: var(--alf-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
    margin-bottom: 6px;
}

#alf-container .alf-card-price {
    font-size: 14px;
    font-weight: 800;
    color: var(--alf-primary-dark);
}

/* ── Empty State ─────────────────────────────────────────────────── */
#alf-container .alf-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 40px 20px;
    text-align: center;
}

#alf-container .alf-empty-icon {
    color: var(--alf-border-hover);
}

#alf-container .alf-empty-text {
    font-size: 15px;
    font-weight: 700;
    color: var(--alf-text);
}

#alf-container .alf-empty-hint {
    font-size: 13px;
    color: var(--alf-text-muted);
}

/* ── Load More ───────────────────────────────────────────────────── */
#alf-container .alf-load-more-wrap {
    margin-top: 14px;
}

/* ── Animations ──────────────────────────────────────────────────── */
@keyframes alfSpin {
    to { transform: rotate(360deg); }
}

@keyframes alfFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes alfSlideDown {
    from { opacity: 0; max-height: 0; }
    to   { opacity: 1; max-height: 500px; }
}

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 480px) {
    #alf-container .alf-type-cards {
        grid-template-columns: 1fr;
    }

    #alf-container .alf-card {
        flex-direction: column;
    }

    #alf-container .alf-card-thumb {
        width: 100%;
        height: 140px;
    }

    #alf-container .alf-actions {
        flex-direction: column;
    }
}