:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 0;
    border-radius: 8px 8px 0 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    text-align: center;
    font-size: 28px;
    margin-bottom: 10px;
}

header p {
    text-align: center;
    font-size: 16px;
    opacity: 0.9;
}

.upload-section {
    background-color: white;
    padding: 30px;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.upload-form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.file-input-wrapper {
    position: relative;
    margin-bottom: 20px;
    width: 100%;
    max-width: 500px;
}

.file-input-wrapper input[type="file"] {
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-input-label {
    display: block;
    padding: 15px 20px;
    background-color: var(--light-color);
    border: 2px dashed var(--secondary-color);
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s;
}

.file-input-wrapper:hover .file-input-label {
    background-color: #dfe6e9;
    border-color: var(--primary-color);
}

.upload-btn {
    padding: 12px 30px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.upload-btn:hover {
    background-color: #2980b9;
}

.results-section {
    display: none;
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.raw-data-view {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.hex-viewer {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.card-info {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.card-info h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.info-item {
    padding: 12px;
    background-color: var(--light-color);
    border-radius: 6px;
}

.info-item .label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.sector-data {
    margin-bottom: 30px;
}

.sector-data h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.sector-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.sector-table th, .sector-table td {
    padding: 12px 15px;
    text-align: left;
    border: 1px solid #ddd;
}

.sector-table th {
    background-color: var(--primary-color);
    color: white;
}

.sector-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.sector-table tr:hover {
    background-color: #f1f1f1;
}

.analysis-result {
    background-color: #e8f4fc;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--secondary-color);
}

.analysis-result h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.date-highlight {
    color: var(--accent-color);
    font-weight: 600;
}

.debug-log {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 20px;
}

.debug-log h2 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.log-content {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    max-height: 200px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.log-entry {
    margin-bottom: 5px;
}

.log-info {
    color: #3498db;
}

.log-warning {
    color: #f39c12;
}

.log-error {
    color: #e74c3c;
}

.log-success {
    color: #2ecc71;
}

.footer {
    text-align: center;
    margin-top: 40px;
    color: #7f8c8d;
    font-size: 14px;
}

.loading {
    display: none;
    text-align: center;
    margin: 20px 0;
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--secondary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .sector-table {
        font-size: 14px;
    }
    
    .sector-table th, .sector-table td {
        padding: 8px 10px;
    }
}