/* Base styles and CSS reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* CSS Custom Properties for maintainability */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #28a745;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --shadow-light: 0 10px 30px rgba(0,0,0,0.2);
    --border-radius: 10px;
    --border-radius-large: 15px;
    --transition: 0.3s ease;
}