:root {
    --theme-color: #020066;
    --title-color: #0B1422;
    --body-color: #6E7070;
    --white: #ffffff;
    --light-bg: #f4f6fb;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--light-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.wrapper {
    display: flex;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 24px 64px rgba(2, 0, 102, 0.13);
    max-width: 900px;
    width: 100%;
    overflow: hidden;
    min-height: 480px;
}

/* ── Colonne gauche ── */
.sidebar {
    background: var(--theme-color);
    width: 260px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 28px;
    position: relative;
}

.sidebar::after {
    content: '';
    position: absolute;
    top: 0; right: -1px; bottom: 0;
    width: 1px;
    background: rgba(255,255,255,0.08);
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    text-align: center;
}

.sidebar-inner img {
    height: 90px;
    object-fit: contain;
}

.tagline {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 0.5px;
}

.tagline-sub {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.65);
    font-style: italic;
    font-weight: 500;
}

.fusion-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 0.72rem;
    font-weight: 600;
    color: rgba(255,255,255,0.85);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-top: 4px;
}

.fusion-badge span {
    width: 5px;
    height: 5px;
    background: rgba(255,255,255,0.7);
    border-radius: 50%;
    display: inline-block;
}

/* ── Colonne droite ── */
.main {
    flex: 1;
    padding: 40px 44px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 24px;
}

h1 {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--title-color);
    line-height: 1.45;
}

h1 strong {
    color: var(--theme-color);
}

.message {
    font-size: 0.9rem;
    color: var(--body-color);
    line-height: 1.8;
    background: var(--light-bg);
    border-left: 4px solid var(--theme-color);
    border-radius: 0 10px 10px 0;
    padding: 16px 20px;
    flex: 1;
}

.message p {
    margin-bottom: 8px;
}

.message p:last-child {
    margin-bottom: 0;
}

.actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    background: var(--theme-color);
    color: var(--white);
    text-decoration: none;
    padding: 13px 36px;
    border-radius: 50px;
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 8px 24px rgba(2, 0, 102, 0.25);
    white-space: nowrap;
}

.btn:hover {
    background: #030088;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(2, 0, 102, 0.35);
}

.footer-note {
    font-size: 0.75rem;
    color: #aaa;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .wrapper {
        flex-direction: column;
        min-height: unset;
    }

    .sidebar {
        width: 100%;
        padding: 32px 24px;
    }

    .sidebar-inner {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .sidebar-inner img {
        height: 60px;
    }

    .main {
        padding: 28px 24px;
    }

    .actions {
        flex-direction: column;
        align-items: flex-start;
    }
}