/* Importation d'une typographie moderne */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700;800&family=Open+Sans:wght@400;600&display=swap');

:root {
    --primary: #1A365D;    /* Bleu Profond - Professionnalisme */
    --secondary: #FF7F50;  /* Corail Énergique - Jeu & Créativité */
    --accent: #4FD1C5;     /* Menthe Fraîche - Jeunesse */
    --light: #F7FAFC;
    --dark: #2D3748;
    --glass: rgba(255, 255, 255, 0.9);
}

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

body {
    font-family: 'Open Sans', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: var(--dark);
    line-height: 1.8;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    color: var(--primary);
}

/* Barre de Navigation Creative */
nav {
    background: var(--glass);
    backdrop-filter: blur(10px);
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -1px;
}

.logo span { color: var(--secondary); }

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links a {
    margin-left: 30px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 600;
    transition: 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--secondary);
    transition: 0.3s;
}

.nav-links a:hover::after { width: 100%; }

/* Hero Section */
.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 10%;
    background: url('https://images.unsplash.com/photo-1511512578047-dfb367046420?auto=format&fit=crop&q=80') center/cover;
    position: relative;
    color: white;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(26, 54, 93, 0.7);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

/* Container & Sections */
.container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    display: inline-block;
    border-bottom: 4px solid var(--secondary);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.glass-card {
    background: var(--glass);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.1);
    transition: transform 0.3s;
}

.glass-card:hover { transform: translateY(-10px); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--secondary);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(255, 127, 80, 0.4);
}

.btn:hover {
    background: var(--primary);
    transform: scale(1.05);
}

/* Footer */
footer {
    background: var(--primary);
    color: white;
    padding: 4rem 5% 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    font-size: 0.9rem;
}