/* ==========================================================================
   Filter Panel Styles
   ========================================================================== */

.filter-panel {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: fit-content;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

@media (min-width: 1024px) {
    .filter-panel {
        position: sticky;
        top: calc(var(--space-xl) + 60px);
    }
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.filter-header h2 {
    font-size: 1.3rem;
    color: var(--primary);
    margin: 0;
}

.filter-header-actions {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.clear-btn {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: underline;
    transition: color var(--transition-base);
}

.clear-btn:hover {
    color: var(--secondary);
}

.share-filters-btn {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: underline;
    transition: color var(--transition-base);
    padding: 0;
}

.share-filters-btn:hover {
    color: var(--secondary);
}

/* Mobile Filter Toggle */
.filter-mobile-toggle {
    display: block;
    margin-bottom: var(--space-md);
}

@media (min-width: 1024px) {
    .filter-mobile-toggle {
        display: none;
    }
}

.filter-content {
    display: none;
}

.filter-content.active {
    display: block;
}

@media (min-width: 1024px) {
    .filter-content {
        display: block !important;
    }
}

/* Search Box */
.search-box-container {
    margin-bottom: var(--space-lg);
}

.search-box {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition-base);
    background: var(--surface);
    color: var(--text);
}

.search-box:focus {
    outline: none;
    border-color: var(--secondary);
}

/* Filter Sections */
.filter-section {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.filter-section:last-child {
    border-bottom: none;
}

.filter-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.filter-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
}

.filter-option:hover {
    background: var(--light);
}

.filter-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--secondary);
    margin: 0;
}

.filter-label {
    cursor: pointer;
    flex: 1;
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
}

.count {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Slider */
.slider-container {
    margin-top: var(--space-md);
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: var(--radius-sm);
    background: var(--light);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--secondary);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--secondary);
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.2);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: var(--space-sm);
}

.slider-labels span:nth-child(2) {
    font-weight: 600;
    color: var(--primary);
}

/* Random Button */
.random-btn {
    width: 100%;
    padding: var(--space-md);
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--space-md);
    transition: all var(--transition-base);
}

.random-btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Filter Chips (for mobile/compact view) */
.filter-chip {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.9rem;
    white-space: nowrap;
    font-weight: 500;
}

.filter-chip:hover,
.filter-chip.active {
    border-color: var(--secondary);
    background: var(--secondary);
    color: white;
}