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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
    padding: 30px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

header h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 2em;
}

header p {
    color: #666;
    font-size: 0.95em;
}

.input-section, .view-section {
    margin-bottom: 40px;
}

h2 {
    color: #444;
    margin-bottom: 15px;
    font-size: 1.5em;
    border-left: 4px solid #667eea;
    padding-left: 15px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    font-family: monospace;
    resize: vertical;
    transition: border-color 0.3s;
}

textarea:focus {
    outline: none;
    border-color: #667eea;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, background 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
    margin-top: 15px;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 8px;
    display: none;
}

.message.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.table-container {
    overflow-x: auto;
    margin-top: 20px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #555;
    position: sticky;
    top: 0;
}

tr:hover {
    background: #f5f5f5;
}

.loading {
    text-align: center;
    color: #999;
    padding: 40px;
}

.url-cell {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.url-cell a {
    color: #667eea;
    text-decoration: none;
}

.url-cell a:hover {
    text-decoration: underline;
}

.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.status-true {
    background: #28a745;
    color: white;
}

.status-false {
    background: #dc3545;
    color: white;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    
    th, td {
        padding: 8px;
        font-size: 12px;
    }
    
    .url-cell {
        max-width: 150px;
    }
}