/* Variables CSS pour la cohérence */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --accent-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    --primary-color: #2c3e50;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --border-radius: 15px;
    --shadow: 0 10px 30px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
}

/* Container principal */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--primary-color);
}

h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Liens */
a {
    color: #4facfe;
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    opacity: 0.8;
}

/* Sections communes */
section {
    margin-bottom: 3rem;
}