/* CamStat Data Portal - Production CSS */
:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --border-color: #e9ecef;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
    color: var(--dark-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Language Switcher */
.language-switcher {
    position: relative;
}

.lang-switch-btn {
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 15px;
    font-size: 1em;
    color: var(--secondary-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.lang-switch-btn:hover {
    background: #e9ecef;
    border-color: var(--primary-color);
}

.lang-switch-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.lang-arrow {
    font-size: 0.8em;
    transition: transform 0.2s ease;
}

.lang-switch-btn:hover .lang-arrow {
    transform: translateY(1px);
}

/* Categories Section */
.categories-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.topics-btn {
    background: var(--light-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px 18px;
    font-size: 1.1em;
    color: var(--dark-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.topics-btn:hover {
    background: #e9ecef;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.topics-btn .arrow {
    font-size: 0.9em;
    transition: transform 0.2s ease;
}

.topics-btn:hover .arrow {
    transform: translateY(-1px);
}

/* Block Grid Layout - 3 columns */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.category-block {
    background: #ffffff;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.category-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.category-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: var(--primary-color);
}

.category-block:hover::before {
    transform: scaleX(1);
}

.category-block.selected {
    background: #e3f2fd;
    border-color: var(--primary-color);
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.2);
}

.category-block.selected::before {
    transform: scaleX(1);
    background: var(--primary-color);
}

.category-name {
    font-size: 1.3em;
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.category-code {
    font-size: 1em;
    color: var(--secondary-color);
    font-weight: 500;
    background: var(--light-color);
    padding: 8px 14px;
    border-radius: 6px;
    display: inline-block;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.category-block:hover .category-code {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Data Results Section */
.data-section {
    display: none;
    margin-top: 30px;
}

.data-header {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--box-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border-color);
}

.back-btn {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    font-size: 1em;
}

.back-btn:hover {
    background: #5a6268;
    transform: translateY(-1px);
}

.data-title {
    font-size: 1.5em;
    color: var(--dark-color);
    font-weight: 600;
}

.camstat-iframe {
    width: 100%;
    height: auto;
    min-height: 100vh;
    border: none;
    border-radius: 12px;
    box-shadow: var(--box-shadow);
    background: white;
}

.loading-iframe {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: white;
    border-radius: 12px;
    box-shadow: var(--box-shadow);
    font-size: 1.2em;
    color: var(--secondary-color);
    font-weight: 500;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--secondary-color);
    font-size: 1.1em;
    font-weight: 500;
}

.error {
    text-align: center;
    padding: 40px;
    color: var(--danger-color);
    font-size: 1.1em;
    font-weight: 500;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: var(--border-radius);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .category-block {
        padding: 20px;
        min-height: 100px;
    }
    
    .category-name {
        font-size: 1.1em;
    }
    
    .section-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .data-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .camstat-iframe {
        height: auto;
        min-height: 100vh;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    
    .category-block {
        padding: 15px;
        min-height: 90px;
    }
    
    .category-name {
        font-size: 1em;
    }
    
    .category-code {
        font-size: 0.9em;
        padding: 6px 10px;
    }

    .camstat-iframe {
        height: auto;
        min-height: 100vh;
    }
}

/* Loading Animation */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.loading {
    animation: pulse 2s infinite;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for accessibility */
.lang-switch-btn:focus,
.topics-btn:focus,
.back-btn:focus,
.category-block:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .language-switcher,
    .back-btn {
        display: none;
    }
    
    .categories-section {
        box-shadow: none;
        border: 1px solid #000;
    }
}