/* 
 * Supplier Comparison Responsive Styles
 * Mobile-first responsive design
 */

/* ========================================
   TABLET LAYOUT (992px and below)
   ======================================== */

@media (max-width: 992px) {
    .supplier-comparison-main {
        flex-direction: column;
        gap: 20px;
    }
    
    .supplier-filter-column {
        flex: 1 0 100%;
        margin-bottom: 20px;
        max-width: 100%;
        order: 1;
    }
    
    .supplier-main-content {
        flex: 1 0 100%;
        max-width: 100%;
        order: 2;
    }
    
    /* Help button positioning */
    .floating-help-container {
        bottom: 20px;
        right: 20px;
    }
}

/* ========================================
   MOBILE LAYOUT (768px and below)
   ======================================== */

@media (max-width: 768px) {
    
    /* Main Container */
    .supplier-comparison-container {
        padding: 0 10px;
    }
    
    /* Filter Column Mobile */
    .supplier-filter-column {
        padding: 15px;
        border-radius: var(--border-radius);
    }
    
    .filter-group-header {
        font-size: 14px;
        padding: 6px 0;
    }
    
    .filter-options label {
        font-size: 13px;
        padding: 6px 0;
    }
    
    .supplier-filter-checkbox {
        width: 16px;
        height: 16px;
    }
    
    .filter-count {
        padding: 1px 6px;
        font-size: 11px;
    }
    
    /* Card Layout Mobile */
    .supplier-card {
        margin-bottom: 15px;
    }
    
    .supplier-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 15px;
        gap: 10px;
    }
    
    .supplier-header-left {
        flex-direction: column;
        width: 100%;
        align-items: center;
    }
    
    .supplier-logo {
        margin-right: 0;
        margin-bottom: 10px;
        justify-content: center;
        width: 120px;
        height: 60px;
    }
    
    .supplier-logo-img {
        max-width: 120px;
        max-height: 60px;
    }
    
    .supplier-info {
        text-align: center;
        width: 100%;
    }
    
    .supplier-categories {
        justify-content: center;
    }
    
    .compare-container-new {
        margin-top: 10px;
    }
    
    /* Content Area Mobile */
    .supplier-content-area {
        padding: 15px;
    }
    
    .main-content-flex {
        flex-direction: column;
        gap: 15px;
    }
    
    .properties-section,
    .right-column {
        flex: 1 0 100%;
    }
    
    /* Features Mobile */
    .features-section-title {
        padding-left: 0;
        font-size: 14px;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
        padding-left: 0;
        justify-items: center;
    }
    
    .feature-icon-container {
        width: 35px;
        height: 35px;
    }
    
    .feature-icon-container img {
        max-width: 18px;
        max-height: 18px;
    }
    
    .feature-icon-container span {
        font-size: 14px;
    }
    
    .status-indicator-small {
        width: 14px;
        height: 14px;
        font-size: 9px;
        bottom: -3px;
        right: -3px;
    }
    
    .feature-text {
        font-size: 10px;
        min-height: 18px;
    }
    
    /* Block Features Mobile */
    .block-features-grid {
        grid-template-columns: 1fr;
        gap: 4px;
    }
    
    .property-item {
        font-size: 12px;
        justify-content: flex-start;
    }
    
    /* Subfeatures Mobile */
    .subfeatures-grid {
        grid-template-columns: 1fr;
        gap: 4px;
    }
    
    /* Right Column Mobile */
    .right-column {
        order: -1;
        margin-bottom: 15px;
    }
    
    .section-heading {
        font-size: 13px;
        text-align: center;
    }
    
    .certifications-container {
        text-align: center;
    }
    
    .certification-item {
        font-size: 11px;
        padding: 3px 8px;
    }
    
    .price-section {
        text-align: center;
        margin-bottom: 15px;
    }
    
    /* Actions Mobile */
    .actions-section {
        gap: 8px;
    }
    
    .primary-cta-compact,
    .info-btn-compact,
    .website-btn-compact {
        font-size: 12px;
        padding: 8px 12px;
    }
    
    /* Expandable Section Mobile */
    .supplier-expandable {
        padding: 15px;
    }
    
    .additional-functions {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    /* Tooltips Mobile - Simplified */
    .tooltip-text {
        width: 200px;
        font-size: 12px;
        transform: translate(-50%, -50%);
        position: fixed;
        top: 50%;
        left: 50%;
        bottom: auto;
        margin: 0;
    }
    
    .tooltip-text::after {
        display: none;
    }
    
    /* Floating elements mobile */
    .floating-help-container {
        bottom: 15px;
        right: 15px;
    }
    
    .help-choose-btn {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }
    
    .help-tooltip {
        display: none;
    }
    
    /* Comparison Mobile */
    #sticky-compare-btn {
        width: calc(100% - 30px);
        max-width: 350px;
        padding: 10px 15px;
        font-size: 14px;
        border-radius: var(--border-radius);
        bottom: 15px;
    }
    
    #sticky-compare-btn:hover {
        transform: translateX(-50%);
    }
    
    /* Loading indicators mobile */
    #loading-indicator {
        padding: 30px 15px;
    }
    
    .loading-indicator .spinner {
        width: 30px;
        height: 30px;
        border-width: 3px;
    }
}

/* ========================================
   SMALL MOBILE (576px and below)
   ======================================== */

@media (max-width: 576px) {
    
    .supplier-comparison-container {
        padding: 0 5px;
    }
    
    /* Header adjustments */
    .supplier-title {
        font-size: 15px;
    }
    
    .supplier-email {
        font-size: 12px;
    }
    
    .category-tag {
        font-size: 12px;
        padding: 3px 8px;
    }
    
    /* Logo sizing */
    .supplier-logo {
        width: 100px;
        height: 50px;
    }
    
    .supplier-logo-img {
        max-width: 100px;
        max-height: 50px;
    }
    
    /* Features extra small */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }
    
    .feature-icon-container {
        width: 30px;
        height: 30px;
    }
    
    .feature-icon-container img {
        max-width: 16px;
        max-height: 16px;
    }
    
    .feature-icon-container span {
        font-size: 12px;
    }
    
    .status-indicator-small {
        width: 12px;
        height: 12px;
        font-size: 8px;
    }
    
    .feature-text {
        font-size: 9px;
        min-height: 16px;
    }
    
    /* Properties very compact */
    .property-item {
        font-size: 11px;
    }
    
    .property-item .check,
    .property-item .cross {
        font-size: 12px;
    }
    
    /* Actions compact */
    .primary-cta-compact,
    .info-btn-compact,
    .website-btn-compact {
        font-size: 11px;
        padding: 6px 10px;
    }
    
    /* Price display */
    .price-display {
        font-size: 13px;
    }
    
    /* Certifications */
    .certification-item {
        font-size: 10px;
        padding: 2px 6px;
    }
    
    .more-certifications-link,
    .more-features-link {
        font-size: 10px;
    }
}

/* ========================================
   VERY SMALL SCREENS (400px and below)
   ======================================== */

@media (max-width: 400px) {
    
    .supplier-comparison-container {
        padding: 0;
    }
    
    .supplier-card {
        border-radius: var(--border-radius);
        margin-bottom: 10px;
    }
    
    .supplier-header,
    .supplier-content-area,
    .supplier-expandable {
        padding: 10px;
    }
    
    .supplier-title {
        font-size: 14px;
        line-height: 1.2;
    }
    
    .category-tag {
        font-size: 11px;
        padding: 2px 6px;
    }
    
    .features-grid {
        gap: 2px;
    }
    
    .feature-icon-container {
        width: 28px;
        height: 28px;
    }
    
    .feature-text {
        font-size: 8px;
        line-height: 1.1;
    }
    
    .actions-section {
        gap: 6px;
    }
    
    .primary-cta-compact {
        font-size: 10px;
        padding: 6px 8px;
    }
    
    .info-btn-compact,
    .website-btn-compact {
        font-size: 10px;
        padding: 5px 8px;
    }
    
    #sticky-compare-btn {
        font-size: 13px;
        padding: 8px 12px;
    }
    
    .help-choose-btn {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

/* ========================================
   LANDSCAPE PHONE (height < 500px)
   ======================================== */

@media (max-height: 500px) and (orientation: landscape) {
    
    .popup-content {
        max-height: 90vh;
    }
    
    .popup-body {
        padding: 15px;
        gap: 15px;
    }
    
    .choose-option {
        padding: 15px;
    }
    
    .floating-help-container {
        bottom: 10px;
        right: 10px;
    }
    
    .help-choose-btn {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }
    
    #sticky-compare-btn {
        padding: 8px 15px;
        font-size: 13px;
        bottom: 10px;
    }
}

/* ========================================
   ACCESSIBILITY IMPROVEMENTS
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    
    * {
        transition: none !important;
        animation: none !important;
    }
    
    .supplier-card:hover {
        transform: none;
    }
    
    .help-choose-btn:hover {
        transform: none;
    }
    
    #sticky-compare-btn:hover {
        transform: translateX(-50%);
    }
}

/* ========================================
   HIGH CONTRAST MODE
   ======================================== */

@media (prefers-contrast: high) {
    
    .supplier-card {
        border: 2px solid var(--text-primary);
    }
    
    .supplier-card.premium-card {
        border-left: 5px solid var(--primary-color);
    }
    
    .primary-cta-compact {
        border: 2px solid var(--primary-dark);
    }
    
    .info-btn-compact,
    .website-btn-compact {
        border: 2px solid var(--border-color);
    }
    
    .supplier-filter-checkbox {
        border: 2px solid var(--text-primary);
    }
}

/* ========================================
   PRINT OPTIMIZATIONS
   ======================================== */

@media print {
    
    .floating-help-container,
    #sticky-compare-btn,
    .help-choose-popup,
    .noinfo-popup {
        display: none !important;
    }
    
    .supplier-card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
        margin-bottom: 15px;
    }
    
    .supplier-header {
        background-color: #f5f5f5 !important;
    }
    
    .primary-cta-compact,
    .info-btn-compact,
    .website-btn-compact {
        background-color: transparent !important;
        color: var(--text-primary) !important;
        border: 1px solid var(--text-primary) !important;
    }
    
    .tooltip-text {
        display: none !important;
    }
    
    .supplier-comparison-table {
        font-size: 10px;
    }
    
    .supplier-comparison-table th,
    .supplier-comparison-table td {
        padding: 5px;
        border: 1px solid #000;
    }
}

/* ========================================
   FOCUS MANAGEMENT FOR KEYBOARD USERS
   ======================================== */

@media (any-hover: none) {
    
    /* Touch devices - remove hover states */
    .supplier-card:hover {
        box-shadow: var(--shadow-light);
        transform: none;
    }
    
    .choose-option:hover {
        box-shadow: none;
        transform: none;
        border-color: var(--border-color);
        background-color: var(--bg-primary);
    }
    
    /* Increase touch targets */
    .supplier-compare-checkbox {
        width: 24px;
        height: 24px;
    }
    
    .compare-wrapper {
        padding: 6px 10px;
        min-height: 44px;
    }
    
    .primary-cta-compact,
    .info-btn-compact,
    .website-btn-compact {
        min-height: 44px;
        padding: 10px 15px;
    }
    
    .help-choose-btn {
        min-width: 48px;
        min-height: 48px;
    }
}

/* ========================================
   PERFORMANCE OPTIMIZATIONS
   ======================================== */

@media (max-width: 768px) {
    
    /* Reduce transitions on mobile for better performance */
    .supplier-card,
    .primary-cta-compact,
    .info-btn-compact,
    .website-btn-compact {
        transition: opacity 0.2s ease;
    }
    
    /* Simplify shadows on mobile */
    .supplier-card {
        box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    }
    
    .supplier-card:hover {
        box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    }
}