/* PWA Mobile Optimizations - Enhanced for better readability */

/* Enhanced touch targets for mobile */
@media (max-width: 768px) {
    .timeframe-btn,
    .preset-btn,
    .btn-clear,
    .pagination-btn {
        min-height: 44px;
        padding: 12px 16px;
        margin: 4px;
    }
    
    /* Mobile-friendly table - Compact view */
    .signals-table {
        font-size: 12px;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .signals-table thead,
    .signals-table tbody,
    .signals-table tr {
        display: table;
        width: 100%;
        table-layout: fixed;
    }
    
    .signals-table th,
    .signals-table td {
        padding: 8px 4px;
        min-height: 40px;
        vertical-align: middle;
        text-align: center;
    }
    
    /* Optimize column widths for mobile */
    .signals-table th:nth-child(1), /* Symbol */
    .signals-table td:nth-child(1) {
        width: 15%;
        font-weight: bold;
    }
    
    .signals-table th:nth-child(2), /* Date */
    .signals-table td:nth-child(2) {
        width: 12%;
        font-size: 10px;
    }
    
    .signals-table th:nth-child(3), /* Timeframe */
    .signals-table td:nth-child(3) {
        width: 12%;
        font-size: 10px;
    }
    
    .signals-table th:nth-child(4), /* Signal */
    .signals-table td:nth-child(4) {
        width: 13%;
        font-weight: bold;
    }
    
    .signals-table th:nth-child(5), /* Price */
    .signals-table td:nth-child(5) {
        width: 16%;
    }
    
    .signals-table th:nth-child(6), /* Target 1 */
    .signals-table td:nth-child(6) {
        width: 16%;
        font-size: 11px;
    }
    
    .signals-table th:nth-child(7), /* Target 2 */
    .signals-table td:nth-child(7) {
        width: 16%;
        font-size: 11px;
    }
    
    /* Better date formatting hint */
    .signals-table td:nth-child(2) {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    /* Responsive filters */
    .search-filters-row {
        flex-direction: column;
        gap: 16px;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-group input,
    .filter-group select {
        min-height: 44px;
        font-size: 16px;
    }
    
    /* Mobile navigation spacing */
    .container {
        padding: 12px;
    }
    
    /* Theme toggle positioning */
    .theme-toggle {
        top: 12px;
        right: 12px;
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Compact header for mobile */
    h1 {
        font-size: 20px !important;
        margin-bottom: 8px !important;
    }
    
    p {
        font-size: 12px !important;
    }
}

/* Extra small screens - Card layout */
@media (max-width: 480px) {
    .signals-table {
        font-size: 11px;
    }
    
    .signals-table th,
    .signals-table td {
        padding: 6px 2px;
    }
    
    /* Hide timeframe column on very small screens */
    .signals-table th:nth-child(3),
    .signals-table td:nth-child(3) {
        display: none;
    }
    
    /* Redistribute width */
    .signals-table th:nth-child(1),
    .signals-table td:nth-child(1) {
        width: 18%;
    }
    
    .signals-table th:nth-child(2),
    .signals-table td:nth-child(2) {
        width: 15%;
    }
    
    .signals-table th:nth-child(4),
    .signals-table td:nth-child(4) {
        width: 15%;
    }
    
    .signals-table th:nth-child(5),
    .signals-table td:nth-child(5) {
        width: 17%;
    }
    
    .signals-table th:nth-child(6),
    .signals-table td:nth-child(6) {
        width: 17.5%;
    }
    
    .signals-table th:nth-child(7),
    .signals-table td:nth-child(7) {
        width: 17.5%;
    }
}

/* PWA display mode optimizations */
@media (display-mode: standalone) {
    body {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
    }
    
    .theme-toggle {
        top: calc(12px + env(safe-area-inset-top));
    }
}

/* iOS specific optimizations */
@supports (-webkit-touch-callout: none) {
    .container {
        -webkit-overflow-scrolling: touch;
    }
    
    input, select, button {
        -webkit-appearance: none;
        border-radius: 8px;
    }
}