/**
 * Frontend Styles for WordPress Gold Price Manager v4
 * 
 * This file contains all frontend styles for displaying gold and coin prices.
 * Includes Persian/Farsi RTL support and responsive design.
 * 
 * @package Gold_Price_Manager_V4
 * @since 4.0.0
 */

/* ==========================================================================
   Base Styles
   ========================================================================== */

.gpm-v4-container {
    font-family: 'Tahoma', 'Arial', sans-serif;
    direction: rtl;
    text-align: right;
    margin: 20px 0;
}

.gpm-v4-container * {
    box-sizing: border-box;
}

/* ==========================================================================
   Price Display Components
   ========================================================================== */

.gpm-v4-price-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.gpm-v4-price-item {
    background: #ffffff;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 15px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.gpm-v4-price-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #007cba;
}

.gpm-v4-price-item.loading {
    opacity: 0.6;
}

.gpm-v4-price-item.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    animation: gpm-v4-loading 1.5s infinite;
}

@keyframes gpm-v4-loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.gpm-v4-price-value {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 8px;
    font-family: 'Courier New', monospace;
}

.gpm-v4-price-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.gpm-v4-price-unit {
    font-size: 12px;
    color: #999;
}

.gpm-v4-price-change {
    font-size: 12px;
    margin-top: 5px;
    padding: 2px 6px;
    border-radius: 3px;
}

.gpm-v4-price-change.positive {
    color: #27ae60;
    background: #d5f4e6;
}

.gpm-v4-price-change.negative {
    color: #e74c3c;
    background: #fdf2f2;
}

.gpm-v4-price-change.neutral {
    color: #7f8c8d;
    background: #f8f9fa;
}

/* ==========================================================================
   Price Table
   ========================================================================== */

.gpm-v4-price-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.gpm-v4-price-table th,
.gpm-v4-price-table td {
    padding: 12px 15px;
    text-align: right;
    border-bottom: 1px solid #eee;
}

.gpm-v4-price-table th {
    background: #34495e;
    color: #ffffff;
    font-weight: bold;
    font-size: 14px;
}

.gpm-v4-price-table tr:nth-child(even) {
    background: #f8f9fa;
}

.gpm-v4-price-table tr:hover {
    background: #e3f2fd;
}

.gpm-v4-price-table .price-value {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #2c3e50;
}

/* ==========================================================================
   Single Price Display
   ========================================================================== */

.gpm-v4-single-price {
    display: inline-block;
    padding: 8px 12px;
    background: #007cba;
    color: #ffffff;
    border-radius: 4px;
    font-weight: bold;
    font-family: 'Courier New', monospace;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.gpm-v4-single-price:hover {
    background: #005a87;
    color: #ffffff;
    text-decoration: none;
}

.gpm-v4-single-price.large {
    font-size: 18px;
    padding: 12px 18px;
}

.gpm-v4-single-price.small {
    font-size: 12px;
    padding: 4px 8px;
}

/* ==========================================================================
   Error and Loading States
   ========================================================================== */

.gpm-v4-error {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    margin: 10px 0;
    text-align: center;
}

.gpm-v4-loading {
    text-align: center;
    padding: 20px;
    color: #666;
}

.gpm-v4-loading::before {
    content: '⏳';
    margin-left: 8px;
}

.gpm-v4-no-data {
    background: #fff3cd;
    color: #856404;
    padding: 15px;
    border: 1px solid #ffeaa7;
    border-radius: 4px;
    margin: 10px 0;
    text-align: center;
}

/* ==========================================================================
   Persian/Farsi Number Support
   ========================================================================== */

.gpm-v4-persian-numbers .gpm-v4-price-value,
.gpm-v4-persian-numbers .price-value {
    font-family: 'B Nazanin', 'Tahoma', sans-serif;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
    .gpm-v4-price-board {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 10px;
        padding: 15px;
    }
    
    .gpm-v4-price-item {
        padding: 12px;
    }
    
    .gpm-v4-price-value {
        font-size: 20px;
    }
    
    .gpm-v4-price-table {
        font-size: 14px;
    }
    
    .gpm-v4-price-table th,
    .gpm-v4-price-table td {
        padding: 8px 10px;
    }
}

@media (max-width: 480px) {
    .gpm-v4-price-board {
        grid-template-columns: 1fr;
    }
    
    .gpm-v4-price-value {
        font-size: 18px;
    }
    
    .gpm-v4-price-table {
        font-size: 12px;
    }
    
    .gpm-v4-price-table th,
    .gpm-v4-price-table td {
        padding: 6px 8px;
    }
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .gpm-v4-price-item:hover {
        transform: none;
        box-shadow: none;
    }
    
    .gpm-v4-price-board {
        background: transparent;
        border: none;
    }
    
    .gpm-v4-price-item {
        border: 1px solid #000;
        break-inside: avoid;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

.gpm-v4-price-item:focus,
.gpm-v4-single-price:focus {
    outline: 2px solid #007cba;
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .gpm-v4-price-item {
        transition: none;
    }
    
    .gpm-v4-price-item:hover {
        transform: none;
    }
    
    @keyframes gpm-v4-loading {
        0%, 100% { transform: none; }
    }
}

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

@media (prefers-contrast: high) {
    .gpm-v4-price-item {
        border: 2px solid #000;
    }
    
    .gpm-v4-price-value {
        color: #000;
    }
    
    .gpm-v4-single-price {
        background: #000;
        color: #fff;
        border: 2px solid #fff;
    }
}