/* ------------------------
   THEME MODERNE 2025
   Pour établissement scolaire
-------------------------*/

:root {
    --bleu: #2563eb;
    --bleu-light: #3b82f6;
    --fond: #f3f4f6;
    --texte: #1f2937;
    --carte: #ffffff;
    --ombre: 0 8px 20px rgba(0,0,0,0.08);
    --radius: 14px;
    --transition: 0.25s ease;
}

body {
    margin: 0;
    font-family: "Inter", Arial, sans-serif;
    background: var(--fond);
    color: var(--texte);
}

/* HEADER */
.topbar {
    background: white;
    padding: 18px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--ombre);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    width: 60px;
    height: 60px;
    border-radius: 10px;
}

.logo-section h1 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--bleu);
}

nav a {
    margin-left: 30px;
    text-decoration: none;
    font-weight: 600;
    color: var(--texte);
    transition: var(--transition);
}

nav a:hover {
    color: var(--bleu);
}

/* HERO */
.hero {
    padding: 100px 20px;
    text-align: center;
    background: linear-gradient(135deg, var(--bleu), var(--bleu-light));
    color: white;
}

.hero h2 {
    font-size: 2.6rem;
    margin-bottom: 10px;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.btn-primary {
    display: inline-block;
    margin-top: 25px;
    padding: 12px 26px;
    background: white;
    color: var(--bleu);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 700;
    box-shadow: var(--ombre);
    transition: var(--transition);
}

.btn-primary:hover {
    background: #e5e7eb;
}

/* CARDS */
.cards {
    margin: 60px auto;
    max-width: 1100px;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.card {
    background: var(--carte);
    padding: 25px;
    width: 300px;
    border-radius: var(--radius);
    box-shadow: var(--ombre);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-6px);
}

.card h3 {
    margin-top: 0;
    color: var(--bleu);
}

/* PAGE CONTENT */
.page {
    max-width: 900px;
    margin: 60px auto;
    padding: 0 20px;
}

.card.wide {
    width: 100%;
}

/* FOOTER */
footer {
    margin-top: 60px;
    padding: 25px;
    text-align: center;
    background: white;
    box-shadow: 0 -4px 15px rgba(0,0,0,0.06);
    font-weight: 500;
}