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

    body {
        font-family: 'Segoe UI', Roboto, sans-serif;
        line-height: 1.6;
        color: #2d3748;
        background: linear-gradient(135deg, #f8fafc 0%, #f0f5fa 100%);
        min-height: 100vh;
        padding: 1rem;
    }

    .container {
        max-width: 1300px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.7);
        backdrop-filter: blur(10px);
        border-radius: 2.5rem;
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
        padding: 2rem;
        border: 1px solid rgba(255, 255, 255, 0.6);
    }

    .container p {
        font-size: 1.2rem; color: #4a5568;
    }

    /* Menu de navigation */
    .nav {
        display: flex;
        justify-content: center;
        gap: 1rem;
        margin-bottom: 2.5rem;
        flex-wrap: wrap;
    }

    .nav a {
        padding: 0.8rem 2rem;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 600;
        transition: all 0.2s;
        background: white;
        color: #1e3c72;
        border: 2px solid transparent;
    }

    .nav a:hover {
        border-color: #1e3c72;
        background: #f0f7ff;
    }

    .nav a.actif {
        background: #1e3c72;
        color: white;
    }

    /* En-tête */
    .header {
        text-align: center;
        margin-bottom: 3rem;
    }

    .header h1 {
        font-size: 2.8rem;
        font-weight: 700;
        background: linear-gradient(135deg, #1e3c72, #2a5298);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        margin-bottom: 0.5rem;
    }

    .badge {
        display: inline-block;
        background: #2f855a;
        color: white;
        padding: 0.3rem 1.5rem;
        border-radius: 40px;
        font-weight: 600;
        font-size: 0.9rem;
        margin-top: 1rem;
    }

    /* Cartes formules */
    .grille {
        display: flex;
        flex-wrap: wrap;
        gap: 2rem;
        justify-content: center;
        margin: 3rem 0;
    }

    .carte {
        flex: 1 1 280px;
        max-width: 320px;
        background: white;
        border-radius: 2rem;
        overflow: hidden;
        box-shadow: 0 15px 30px -10px rgba(0,0,0,0.1);
        transition: transform 0.2s;
        border: 1px solid #e9eef3;
    }

    .carte:hover {
        transform: translateY(-5px);
        box-shadow: 0 25px 40px -12px #1e3c7250;
    }

    .carte.populaire {
        border: 2px solid #2a5298;
        transform: scale(1.02);
    }

    .entete {
        background: linear-gradient(145deg, #f5f9ff, #ffffff);
        padding: 2rem 1.5rem;
        text-align: center;
        border-bottom: 2px dashed #d0ddee;
    }

    .entete h2 {
        font-size: 1.8rem;
        color: #1e3c72;
        margin-bottom: 0.8rem;
    }

    .prix {
        font-size: 3rem;
        font-weight: 800;
        color: #0b2b4f;
        line-height: 1.2;
    }

    .prix small {
        font-size: 1rem;
        font-weight: 400;
        color: #64748b;
    }

    .corps {
        padding: 2rem 1.5rem;
    }

    .corps ul {
        list-style: none;
        margin-bottom: 2rem;
    }

    .corps li {
        padding: 0.5rem 0;
        border-bottom: 1px solid #edf2f7;
        display: flex;
        align-items: center;
        gap: 0.6rem;
    }

    .corps li:before {
        content: "✓";
        color: #2f855a;
        font-weight: bold;
        margin-right: 0.5rem;
    }

    .btn {
        display: block;
        text-align: center;
        background: linear-gradient(145deg, #1e3c72, #153156);
        color: white;
        text-decoration: none;
        padding: 0.9rem;
        border-radius: 60px;
        font-weight: 600;
        transition: 0.15s;
    }

    .btn:hover {
        background: #2a4a82;
    }

    /* Tableau détaillé */
    .details {
        background: white;
        border-radius: 2rem;
        padding: 2rem;
        margin: 3rem 0;
    }

    .details h2 {
        font-size: 2rem;
        color: #1e3c72;
        margin-bottom: 2rem;
        text-align: center;
    }

    .table-container {
        overflow-x: auto;
    }

    table {
        width: 100%;
        border-collapse: collapse;
    }

    th {
        background: #eef2f7;
        color: #1e3c5e;
        font-weight: 600;
        padding: 1rem;
        text-align: left;
    }

    td {
        padding: 1rem;
        border-bottom: 1px solid #dce5f0;
    }

    /* Mentions légales */
    .mentions {
        text-align: center;
        font-size: 0.9rem;
        color: #4b5870;
        margin-top: 2rem;
        padding-top: 2rem;
        border-top: 2px dotted #b9ccf0;
    }