/**
 * Semitron ACF Filter - Collapsible Panel Styles
 */

/* ==========================================================================
   Filter Group Container
   ========================================================================== */

.semitron-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.semitron-filter-group * {
    box-sizing: border-box;
}

/* ==========================================================================
   Filter Panel - Full Width Card Style
   ========================================================================== */

.sf-filter-panel {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    width: 100%;
}

/* ==========================================================================
   Panel Header - Collapsible Toggle (Full Width)
   ========================================================================== */

.sf-panel-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    padding: 1rem 1.25rem !important;
    background: #ffffff !important;
    border: none !important;
    cursor: pointer !important;
    text-align: left !important;
    transition: background-color 0.15s ease;
    font-family: inherit;
    box-sizing: border-box;
}

.sf-panel-header:hover {
    background: #f5f5f5 !important;
}

.sf-panel-header:focus {
    outline: none;
}

.sf-panel-header:focus-visible {
    outline: 2px solid #1a1a1a;
    outline-offset: -2px;
}

.sf-panel-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #1a1a1a;
    letter-spacing: 0.02em;
    flex-grow: 1;
}

/* Panel Icon (+/-) - Text Character */
.sf-panel-icon {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1;
    color: #1a1a1a;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
    user-select: none;
}

/* ==========================================================================
   Panel Content
   ========================================================================== */

.sf-panel-content {
    padding: 0 1.25rem 1.25rem;
    border-top: 1px solid #e5e7eb;
}

.sf-panel-content[hidden] {
    display: none;
}

/* ==========================================================================
   Search Input
   ========================================================================== */

.sf-search-wrapper {
    margin-bottom: 1rem;
    padding-top: 1rem;
}

.sf-search-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.875rem;
    background: #fff;
}

.sf-search-input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* ==========================================================================
   Options List
   ========================================================================== */

.sf-options-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-top: 1rem;
}

/* ==========================================================================
   Checkbox Option
   ========================================================================== */

.sf-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sf-option.sf-hidden {
    display: none;
}

/* ==========================================================================
   Custom Checkbox - Square, No Radius
   ========================================================================== */

.sf-checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.sf-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
    color: #1a1a1a;
    line-height: 1.4;
    user-select: none;
}

/* Custom checkbox box - SQUARE */
.sf-label::before {
    content: '';
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border: 2px solid #d1d5db;
    border-radius: 0; /* Square corners */
    background: #fff;
    transition: all 0.15s ease;
}

/* Hover state */
.sf-option:hover .sf-label::before {
    border-color: #9ca3af;
}

/* Checked state */
.sf-checkbox:checked + .sf-label::before {
    background-color: #2563eb;
    border-color: #2563eb;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: 14px;
    background-position: center;
    background-repeat: no-repeat;
}

/* Focus state */
.sf-checkbox:focus-visible + .sf-label::before {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* ==========================================================================
   Clear Filter Button
   ========================================================================== */

.sf-clear-filter {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 1rem;
    padding: 0.25rem 0;
    background: none;
    border: none;
    color: #6b7280;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: color 0.15s ease;
}

.sf-clear-filter:hover {
    color: #dc2626;
}

.sf-clear-filter::before {
    content: '\00d7';
    font-size: 1.125rem;
    line-height: 1;
}

/* ==========================================================================
   Active Filter Indicator
   ========================================================================== */

.sf-has-active .sf-panel-title::after {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #2563eb;
    border-radius: 50%;
    margin-left: 0.5rem;
    vertical-align: middle;
}

/* ==========================================================================
   Loading State
   ========================================================================== */

body.sf-loading .elementor-loop-container {
    position: relative;
    pointer-events: none;
}

.sf-loading-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: transparent;
    border-radius: 8px;
    z-index: 9999;
    color: #374151;
    font-size: 0.875rem;
}

.sf-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: sf-spin 0.7s linear infinite;
}

@keyframes sf-spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   No Results Message
   ========================================================================== */

.sf-no-results {
    padding: 2rem;
    text-align: center;
    color: #6b7280;
    background: #f9fafb;
    border-radius: 8px;
    grid-column: 1 / -1;
}

/* ==========================================================================
   Responsive - Tablet
   ========================================================================== */

@media (max-width: 768px) {
    .semitron-filter-group {
        gap: 0.5rem;
    }

    .sf-panel-header {
        padding: 0.875rem 1rem !important;
    }

    .sf-panel-content {
        padding: 0 1rem 1rem;
    }

    .sf-panel-title {
        font-size: 0.875rem;
    }

    .sf-label {
        font-size: 0.9375rem;
    }

    .sf-label::before {
        width: 18px;
        height: 18px;
    }
}

/* ==========================================================================
   Responsive - Mobile
   ========================================================================== */

@media (max-width: 480px) {
    .semitron-filter-group {
        gap: 0.5rem;
    }

    .sf-panel-header {
        padding: 0.75rem 0.875rem !important;
    }

    .sf-panel-content {
        padding: 0 0.875rem 0.875rem;
    }

    .sf-panel-title {
        font-size: 0.8125rem;
    }

    .sf-panel-icon {
        font-size: 1.125rem;
    }

    .sf-options-list {
        gap: 0.625rem;
    }

    .sf-label {
        font-size: 0.875rem;
        gap: 0.625rem;
    }

    .sf-label::before {
        width: 18px;
        height: 18px;
    }

    .sf-search-input {
        padding: 0.5rem 0.625rem;
        font-size: 1rem; /* Prevents zoom on iOS */
    }

    .sf-clear-filter {
        font-size: 0.75rem;
    }
}

/* ==========================================================================
   Touch Device Optimizations
   ========================================================================== */

@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets on touch devices */
    .sf-panel-header {
        min-height: 48px;
    }

    .sf-option {
        min-height: 44px;
    }

    .sf-label::before {
        width: 22px;
        height: 22px;
    }
}