/**
 * Filter Panel Styles
 * Glassmorphism design matching existing styles
 * 
 * @version 1.0.0
 */

/* ==================== FILTER PANEL CONTAINER ==================== */
.filter-panel-container {
    background: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-lg, 1.25rem);
    padding: var(--spacing-lg, 2rem);
    margin-bottom: var(--spacing-xl, 3rem);
    box-shadow: 0 8px 32px rgba(0, 102, 204, 0.25);
    transition: all 0.3s ease;
}

.filter-panel-container:hover {
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 8px 40px rgba(0, 102, 204, 0.35);
}

/* ==================== HEADER ==================== */
.filter-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md, 1.5rem);
    flex-wrap: wrap;
    gap: var(--spacing-sm, 1rem);
}

.filter-panel-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-electric, #00D4FF);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.filter-panel-toggle {
    padding: 0.625rem 1.5rem;
    background: linear-gradient(135deg, var(--pepsi-blue, #0066CC), var(--accent-electric, #00D4FF));
    color: white;
    border: none;
    border-radius: var(--radius-md, 0.75rem);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.filter-panel-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.5);
}

.filter-panel-toggle:active {
    transform: translateY(0);
}

/* ==================== CONTENT ==================== */
.filter-panel-content {
    display: none;
    animation: slideDown 0.3s ease-out;
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== FILTER GROUPS ==================== */
.filter-group {
    margin-bottom: var(--spacing-lg, 2rem);
}

.filter-group:last-of-type {
    margin-bottom: var(--spacing-md, 1.5rem);
}

.filter-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm, 1rem);
    flex-wrap: wrap;
    gap: var(--spacing-xs, 0.5rem);
}

.filter-label-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary, #B0B8C1);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.filter-label-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-electric, #00D4FF);
}

/* ==================== DUAL RANGE SLIDER ==================== */
.dual-range-slider {
    position: relative;
    height: 50px;
    display: flex;
    align-items: center;
}

/* Background track - always visible */
.dual-range-slider::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 8px;
    background: linear-gradient(
        to right,
        rgba(0, 212, 255, 0.3) 0%,
        rgba(0, 212, 255, 0.5) 50%,
        rgba(0, 212, 255, 0.3) 100%
    );
    border-radius: 4px;
    border: 1px solid rgba(0, 212, 255, 0.4);
    z-index: 0;
}

.range-slider {
    position: absolute;
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    pointer-events: none;
    outline: none;
    z-index: 1;
}

.range-slider::-webkit-slider-track {
    width: 100%;
    height: 8px;
    background: transparent;
    border-radius: 4px;
}

.range-slider::-moz-range-track {
    width: 100%;
    height: 8px;
    background: transparent;
    border-radius: 4px;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--pepsi-blue, #0066CC), var(--accent-electric, #00D4FF));
    border: 4px solid white;
    border-radius: 50%;
    cursor: pointer;
    pointer-events: all;
    box-shadow: 0 3px 10px rgba(0, 102, 204, 0.6);
    transition: all 0.2s ease;
    position: relative;
    z-index: 3;
}

.range-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--pepsi-blue, #0066CC), var(--accent-electric, #00D4FF));
    border: 4px solid white;
    border-radius: 50%;
    cursor: pointer;
    pointer-events: all;
    box-shadow: 0 3px 10px rgba(0, 102, 204, 0.6);
    transition: all 0.2s ease;
    position: relative;
    z-index: 3;
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.7);
}

.range-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.7);
}

.range-slider::-webkit-slider-thumb:active {
    transform: scale(1.1);
}

.range-slider::-moz-range-thumb:active {
    transform: scale(1.1);
}

/* Min slider on bottom layer */
.range-slider-min {
    z-index: 1;
}

/* Max slider on top layer */
.range-slider-max {
    z-index: 2;
}

/* ==================== TEXT INPUT ==================== */
.filter-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-md, 0.75rem);
    color: var(--text-primary, #FFFFFF);
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.filter-input::placeholder {
    color: var(--text-secondary, #B0B8C1);
    opacity: 0.6;
}

.filter-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-electric, #00D4FF);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
}

.filter-input:hover {
    border-color: rgba(0, 212, 255, 0.5);
}

/* ==================== SELECT ==================== */
.filter-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-md, 0.75rem);
    color: var(--text-primary, #FFFFFF);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="%2300D4FF"><path d="M8 11L3 6h10z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.filter-select:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-electric, #00D4FF);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.2);
}

.filter-select:hover {
    border-color: rgba(0, 212, 255, 0.5);
}

.filter-select option {
    background: var(--bg-card, #1A1A1A);
    color: var(--text-primary, #FFFFFF);
    padding: 0.5rem;
}

/* ==================== HELP TEXT ==================== */
.filter-help-text {
    margin-top: var(--spacing-xs, 0.5rem);
    font-size: 0.75rem;
    color: var(--error, #FF3333);
    min-height: 18px;
}

/* ==================== ACTION BUTTONS ==================== */
.filter-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm, 1rem);
    margin-top: var(--spacing-lg, 2rem);
}

.btn-filter-apply,
.btn-filter-reset {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-md, 0.75rem);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: var(--touch-target-min, 44px);
}

.btn-filter-apply {
    background: linear-gradient(135deg, var(--success, #00CC66), #00994d);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 204, 102, 0.3);
}

.btn-filter-apply:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 204, 102, 0.5);
}

.btn-filter-reset {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary, #B0B8C1);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-filter-reset:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    color: var(--text-primary, #FFFFFF);
    transform: translateY(-2px);
}

.btn-filter-apply:active,
.btn-filter-reset:active {
    transform: translateY(0);
}

/* ==================== MOBILE RESPONSIVE ==================== */
@media (max-width: 768px) {
    .filter-panel-container {
        padding: var(--spacing-md, 1.5rem);
    }

    .filter-panel-header {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-panel-toggle {
        width: 100%;
        min-height: var(--touch-target-min, 44px);
    }

    .filter-actions {
        grid-template-columns: 1fr;
    }

    .dual-range-slider {
        height: 60px; /* More space for touch targets */
    }

    .range-slider::-webkit-slider-thumb {
        width: 28px;
        height: 28px;
    }

    .range-slider::-moz-range-thumb {
        width: 28px;
        height: 28px;
    }
}

/* ==================== TOUCH IMPROVEMENTS ==================== */
@media (hover: none) and (pointer: coarse) {
    .filter-panel-toggle:hover {
        transform: none;
    }

    .btn-filter-apply:hover,
    .btn-filter-reset:hover {
        transform: none;
    }

    .filter-panel-toggle:active {
        transform: scale(0.98);
    }

    .btn-filter-apply:active,
    .btn-filter-reset:active {
        transform: scale(0.98);
    }
}

/* ==================== ACCESSIBILITY ==================== */
.filter-input:focus-visible,
.filter-select:focus-visible,
.range-slider:focus-visible {
    outline: 2px solid var(--accent-electric, #00D4FF);
    outline-offset: 2px;
}

/* Prevent text selection on sliders */
.dual-range-slider {
    -webkit-user-select: none;
    user-select: none;
}

/* Loading state */
.filter-panel-container.loading {
    opacity: 0.6;
    pointer-events: none;
}

.filter-panel-container.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 212, 255, 0.2);
    border-top-color: var(--accent-electric, #00D4FF);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ==================== GPS BUTTON ==================== */
.btn-use-gps {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--pepsi-blue, #0066CC), var(--accent-electric, #00D4FF));
    color: white;
    border: none;
    border-radius: var(--radius-md, 0.75rem);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: var(--touch-target-min, 44px);
}

.btn-use-gps:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.5);
}

.btn-use-gps:active:not(:disabled) {
    transform: translateY(0);
}

.btn-use-gps:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.gps-icon {
    font-size: 1.25rem;
}

.gps-text {
    flex: 1;
}

/* ==================== FILTER DIVIDER ==================== */
.filter-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: var(--spacing-md, 1.5rem) 0;
    color: var(--text-secondary, #B0B8C1);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.filter-divider::before,
.filter-divider::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(0, 212, 255, 0.3),
        transparent
    );
}

.filter-divider span {
    padding: 0 1rem;
}

/* ==================== LOCATION BADGE (HEADER) ==================== */
.location-badge {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md, 0.75rem);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.location-badge:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.location-badge.active {
    background: var(--success, #00CC66);
    border-color: var(--success, #00CC66);
    box-shadow: 0 0 20px rgba(0, 204, 102, 0.5);
}

.location-badge-icon {
    font-size: 1.25rem;
}

.location-badge-text {
    font-size: 0.875rem;
}