* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
                 sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: #f5f5f5;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 30px;
    background: #ffffff;
    min-height: 100vh;
}

header {
    text-align: center;
    margin-bottom: 60px;
}

h1 {
    margin: 0 0 25px;
    font-size: 3rem;
    letter-spacing: 0.04em;
    color: #1a1a1a;
}

h2 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.7rem;
    color: #1a1a1a;
}

p {
    margin-top: 0;
    margin-bottom: 30px;
}

.intro {
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.35rem;
    line-height: 1.5;
}

/* Liberté – Égalité – Fraternité */

.values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.values article {
    padding: 25px;
    border: 1px solid #e5e5e5;
    border-top: 4px solid #595bca;
    border-radius: 8px;
    background: #ffffff;
}

.values article h2 {
    color: #595bca;
}

section:not(.values) {
    max-width: 760px;
    margin: 0 auto 45px;
}

.forum-link {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    background: #595bca;
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.15s ease;
}

.forum-link:hover {
    background: #4b4db0;
}

header .forum-link {
    margin-top: 10px;
}

section:not(.values) .forum-link {
    margin-top: -10px;
}

/* Accentuation légère du dernier appel à l'action */

section:last-child {
    border-top: 1px solid #e5e5e5;
    padding-top: 35px;
}

section:last-child h2 {
    color: #595bca;
}

/* Mobile */

@media (max-width: 700px) {
    .container {
        padding: 40px 20px;
    }

    h1 {
        font-size: 2.4rem;
    }

    .values {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}