/* ==========================================================================
   MOBILE VENDORS PAGE - FILTER PANEL
   Mobile-only styles for collapsible filter panel (max-width: 768px)
   Desktop version remains completely unchanged
   ========================================================================== */

/* CSS Custom Properties for Theming */
:root {
    --mobile-filter-primary: #2563eb;
    --mobile-filter-primary-hover: #1e40af;
    --mobile-filter-bg: #ffffff;
    --mobile-filter-text: #1f2937;
    --mobile-filter-text-secondary: #6b7280;
    --mobile-filter-border: #e5e7eb;
    --mobile-filter-backdrop: rgba(0, 0, 0, 0.5);
    --mobile-filter-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --mobile-filter-transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   DESKTOP PROTECTION - Hide Mobile Elements on Desktop
   ========================================================================== */
@media (min-width: 769px) {
    .mobile-filter-controls,
    .mobile-filter-btn,
    .mobile-filter-modal,
    .mobile-filter-backdrop,
    .mobile-sort-dropdown,
    .filter-badge,
    .mobile-vendors-count {
        display: none !important;
    }
}

/* ==========================================================================
   MOBILE FILTER CONTROLS - Sticky Header
   ========================================================================== */
@media (max-width: 768px) {
    .mobile-filter-controls {
        position: sticky;
        top: 70px; /* Below header (header is 70px when scrolled) */
        z-index: 100;
        background: var(--mobile-filter-bg);
        border-bottom: 1px solid var(--mobile-filter-border);
        padding: 12px 16px;
        display: flex;
        align-items: center;
        gap: 12px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    }

    /* Filter Button */
    .mobile-filter-btn {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 16px;
        background: var(--mobile-filter-bg);
        border: 1.5px solid var(--mobile-filter-border);
        border-radius: 8px;
        font-size: 15px;
        font-weight: 600;
        color: var(--mobile-filter-text);
        cursor: pointer;
        transition: all var(--mobile-filter-transition);
        min-height: 44px; /* Touch-friendly */
        position: relative;
    }

    .mobile-filter-btn:hover {
        background: #f9fafb;
        border-color: var(--mobile-filter-primary);
    }

    .mobile-filter-btn:active {
        transform: scale(0.98);
    }

    .mobile-filter-btn i {
        font-size: 16px;
        color: var(--mobile-filter-primary);
    }

    /* Filter Badge */
    .filter-badge {
        position: absolute;
        top: -6px;
        right: -6px;
        background: var(--mobile-filter-primary);
        color: white;
        font-size: 11px;
        font-weight: 700;
        padding: 2px 6px;
        border-radius: 10px;
        min-width: 18px;
        height: 18px;
        display: none;
        align-items: center;
        justify-content: center;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }

    /* Mobile Sort Dropdown */
    .mobile-sort-dropdown {
        flex-shrink: 0;
    }

    .mobile-sort-dropdown .sort-btn {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 12px 16px;
        background: var(--mobile-filter-bg);
        border: 1.5px solid var(--mobile-filter-border);
        border-radius: 8px;
        font-size: 15px;
        font-weight: 600;
        color: var(--mobile-filter-text);
        cursor: pointer;
        transition: all var(--mobile-filter-transition);
        min-height: 44px; /* Touch-friendly */
        white-space: nowrap;
    }

    .mobile-sort-dropdown .sort-btn:hover {
        background: #f9fafb;
        border-color: var(--mobile-filter-primary);
    }

    .mobile-sort-dropdown .sort-btn i {
        font-size: 12px;
        color: var(--mobile-filter-text-secondary);
        transition: transform var(--mobile-filter-transition);
    }

    .mobile-sort-dropdown .sort-btn.active i {
        transform: rotate(180deg);
    }

    /* ==========================================================================
       MOBILE FILTER MODAL - Bottom Sheet
       ========================================================================== */

    /* Backdrop */
    .mobile-filter-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--mobile-filter-backdrop);
        z-index: 1098; /* Below modal, above content */
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--mobile-filter-transition), visibility var(--mobile-filter-transition);
        backdrop-filter: blur(2px);
        -webkit-backdrop-filter: blur(2px);
    }

    .mobile-filter-backdrop.active {
        opacity: 1;
        visibility: visible;
    }

    /* Modal Container */
    .mobile-filter-modal {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--mobile-filter-bg);
        border-radius: 16px 16px 0 0;
        max-height: 75vh;
        z-index: 1099; /* Above backdrop */
        display: flex;
        flex-direction: column;
        transform: translateY(100%);
        transition: transform var(--mobile-filter-transition);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    }

    .mobile-filter-modal.active {
        transform: translateY(0);
    }

    .mobile-filter-modal.closing {
        transform: translateY(100%);
    }

    /* Modal Header */
    .mobile-filter-modal .modal-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 20px 16px;
        border-bottom: 1px solid var(--mobile-filter-border);
        flex-shrink: 0;
    }

    .mobile-filter-modal .modal-header h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--mobile-filter-text);
        margin: 0;
    }

    .mobile-filter-modal .modal-header .close-btn {
        width: 44px;
        height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        transition: background var(--mobile-filter-transition);
        color: var(--mobile-filter-text-secondary);
    }

    .mobile-filter-modal .modal-header .close-btn:hover {
        background: #f3f4f6;
    }

    .mobile-filter-modal .modal-header .close-btn:active {
        transform: scale(0.95);
    }

    .mobile-filter-modal .modal-header .close-btn i {
        font-size: 20px;
    }

    /* Modal Content - Scrollable */
    .mobile-filter-modal .modal-content {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        padding: 20px;
        -webkit-overflow-scrolling: touch;
    }

    /* Filter Sections in Modal */
    .mobile-filter-modal .filter-section {
        margin-bottom: 28px;
        padding-bottom: 24px;
        border-bottom: 1px solid var(--mobile-filter-border);
    }

    .mobile-filter-modal .filter-section:last-child {
        border-bottom: none;
        margin-bottom: 0;
        padding-bottom: 0;
    }

    .mobile-filter-modal .filter-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--mobile-filter-text);
        margin-bottom: 16px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .mobile-filter-modal .filter-title i {
        color: var(--mobile-filter-primary);
        font-size: 14px;
    }

    .mobile-filter-modal .filter-option {
        display: flex;
        align-items: center;
        padding: 12px 0;
        cursor: pointer;
        transition: padding-left var(--mobile-filter-transition);
        min-height: 44px; /* Touch-friendly */
    }

    .mobile-filter-modal .filter-option:hover {
        padding-left: 4px;
    }

    .mobile-filter-modal .filter-option input[type="radio"] {
        margin-right: 12px;
        width: 20px;
        height: 20px;
        cursor: pointer;
        accent-color: var(--mobile-filter-primary);
        flex-shrink: 0;
    }

    .mobile-filter-modal .filter-option label {
        cursor: pointer;
        font-size: 15px;
        color: var(--mobile-filter-text);
        flex: 1;
        margin: 0;
        line-height: 1.5;
    }

    /* Search Input in Modal */
    .mobile-filter-modal .filter-search-input {
        width: 100%;
        padding: 12px;
        border: 1.5px solid var(--mobile-filter-border);
        border-radius: 8px;
        font-size: 15px;
        min-height: 44px; /* Touch-friendly */
        transition: border-color var(--mobile-filter-transition);
    }

    .mobile-filter-modal .filter-search-input:focus {
        outline: none;
        border-color: var(--mobile-filter-primary);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    }

    /* Modal Footer */
    .mobile-filter-modal .modal-footer {
        display: flex;
        align-items: center;            /* Ensure buttons align vertically */
        gap: 12px;
        padding: 16px 20px;
        border-top: 1px solid var(--mobile-filter-border);
        background: var(--mobile-filter-bg);
        flex-shrink: 0;
        box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
    }

    .mobile-filter-modal .modal-footer .btn-clear,
    .mobile-filter-modal .modal-footer .btn-apply {
        flex: 1;
        height: 44px;                   /* Consistent fixed height */
        padding: 0 20px;                /* Remove vertical padding, centered by flex */
        font-size: 15px;
        line-height: 1;
        font-weight: 600;
        font-family: inherit;
        border-radius: 8px;
        cursor: pointer;
        transition: all var(--mobile-filter-transition);
        border: none;
        margin: 0 !important;           /* Reset any inherited margins */
        display: flex;
        align-items: center;
        justify-content: center;
        box-sizing: border-box !important;
    }

    .mobile-filter-modal .modal-footer .btn-clear {
        background: var(--mobile-filter-bg);
        color: var(--mobile-filter-text);
        border: 1.5px solid var(--mobile-filter-border) !important;
    }

    .mobile-filter-modal .modal-footer .btn-clear:hover {
        background: #f9fafb;
        border-color: var(--mobile-filter-text-secondary);
    }

    .mobile-filter-modal .modal-footer .btn-clear:active {
        transform: scale(0.98);
    }

    .mobile-filter-modal .modal-footer .btn-apply {
        background: var(--mobile-filter-primary);
        color: white;
        border: 1.5px solid var(--mobile-filter-primary) !important; /* Match border width for alignment */
    }

    .mobile-filter-modal .modal-footer .btn-apply:hover {
        background: var(--mobile-filter-primary-hover);
    }

    .mobile-filter-modal .modal-footer .btn-apply:active {
        transform: scale(0.98);
    }

    /* ==========================================================================
       HIDE DESKTOP SIDEBAR ON MOBILE
       ========================================================================== */
    .filters-sidebar {
        display: none !important;
    }

    /* Adjust vendors container for mobile */
    .vendors-page-container {
        grid-template-columns: 1fr !important;
        padding: 0 !important;
    }

    .vendors-main {
        padding: 16px;
    }

    /* Hide desktop filter actions on mobile */
    .filter-actions {
        display: none !important;
    }
    
    /* ==========================================================================
       HIDE DESKTOP SORT ON MOBILE (Duplicate)
       ========================================================================== */
    
    /* Hide desktop sort dropdown on mobile (mobile controls already have sort) */
    .vendors-header-with-sort {
        display: none !important;
    }
    
    /* ==========================================================================
       VENDOR COUNT - MOBILE POSITIONING
       ========================================================================== */
    
    /* Note: Vendor count is shown in .mobile-vendors-count below filter controls */
    
    /* Show vendor count below mobile filter controls */
    .mobile-vendors-count {
        display: flex !important;
        align-items: center;
        gap: 8px;
        padding: 12px 16px;
        background: #f9fafb;
        border-bottom: 1px solid #e5e7eb;
        font-size: 14px;
        color: #374151;
    }
    
    .mobile-vendors-count i {
        font-size: 14px;
        color: #10b981; /* Green checkmark */
    }
    
    .mobile-vendors-count span {
        font-weight: 500;
    }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(100%);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */
@media (max-width: 768px) {
    /* Ensure proper focus states */
    .mobile-filter-btn:focus,
    .mobile-filter-modal .modal-header .close-btn:focus,
    .mobile-filter-modal .modal-footer .btn-clear:focus,
    .mobile-filter-modal .modal-footer .btn-apply:focus {
        outline: 2px solid var(--mobile-filter-primary);
        outline-offset: 2px;
    }

    /* Prevent body scroll when modal is open */
    body.modal-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }
}