:root {
    --eni-blue: #003366;
    --eni-gold: #f9b000;
    --bg: #f4f6f8;
    --danger-red: #dc2626;
    --focus-ring: #0055aa;
    --font-family: Montserrat, Verdana, Arial, Helvetica, "Segoe UI", "Helvetica Neue", sans-serif;
    /* Rayons de bordure d'entreprise */
    --radius-sm: 4px;
}

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

html {
    font-size: 16px;
    height: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--bg);
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-primary);
    line-height: 1.6;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 3px;
}

.eni-header {
    background: var(--eni-blue);
    color: #fff;
    padding: 20px 40px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 99;
    border-bottom: 3px solid var(--eni-gold);
    box-shadow: 0 2px 8px rgba(0, 34, 68, 0.15);
}
.eni-header-inner {
    max-width: 1200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.eni-brand-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.eni-brand {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    text-decoration: none;
}

.eni-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 90px;
    flex-shrink: 0;
}

.eni-brand-mark img {
    width: 100%;
    object-fit: cover;
}

.eni-brand-text {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    user-select: none;
}

.brand-eni {
    color: #ffffff;
    text-transform: lowercase;
}

.brand-congo {
    color: var(--eni-gold);
    text-transform: lowercase;
    margin-left: 2px;
}
.eni-menu-toggle {
    display: none;
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-sm);
    padding: 0.15rem;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.eni-menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: var(--eni-gold);
}

.hamburger-icon {
    width: 1.25rem;
    height: 1.25rem;
    display: block;
}

.hamburger-line {
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-width: 2;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger-close-line {
    fill: none;
    stroke: var(--eni-gold);
    stroke-linecap: round;
    stroke-width: 2.25;
    opacity: 0;
    transform-origin: 12px 12px;
    transition: opacity 0.15s ease, transform 0.2s ease;
    transform: rotate(-45deg) scale(0.65);
}

.eni-header.menu-open .hamburger-line {
    opacity: 0;
    transform: scaleX(0.6);
}

/* État ouvert du menu hamburger */
.eni-header.menu-open .hamburger-close-line {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Barre de Navigation (Navbar) */
.eni-navbar {
    display: flex;
    align-items: center;
}

.eni-nav-list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

.eni-nav-item {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.eni-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.82);
    border-radius: var(--radius-sm);
    border-bottom: 2px solid transparent;
    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
    user-select: none;
}

.eni-nav-link:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
}

.eni-nav-item.active .eni-nav-link,
.eni-nav-link[aria-current="page"] {
    color: #ffffff;
    background-color: rgba(0, 0, 0, 0.2);
    border-bottom-color: var(--eni-gold);
}

.nav-icon {
    width: 14px;
    height: 14px;
    opacity: 0.85;
}

.nav-status-dot {
    width: 7px;
    height: 7px;
    background-color: #22c55e;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.3);
}

.hero {
    background: linear-gradient(135deg, var(--eni-blue), #00509e);
    color: #fff;
    padding: 60px 40px;
    text-align: center;
    margin-top: 50px;
}

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.hero p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.05rem;
    opacity: 0.95;
}

main {
    max-width: 900px;
    margin: -30px auto 40px;
    padding: 0 20px;
}

.card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    padding: 30px;
    margin-bottom: 24px;
}

.card h2 {
    color: var(--eni-blue);
    border-left: 4px solid var(--eni-gold);
    padding-left: 12px;
    margin-bottom: 14px;
    font-size: 1.3rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
    text-align: center;
}

.stats div {
    background: var(--bg);
    border-radius: 6px;
    padding: 16px;
}

.stats strong {
    display: block;
    font-size: 1.4rem;
    color: var(--eni-blue);
}

.stats small {
    color: #666;
}

footer {
    background: var(--eni-blue);
    color: #dbe4ee;
    margin-top: 40px;
    font-size: 0.9rem;
}

.footer-top {
    max-width: 900px;
    margin: 0 auto;
    padding: 36px 20px 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

/* --------------------------------------------------------------------------
   Media Queries & Responsivité Intégrale
   -------------------------------------------------------------------------- */
/* Tablettes & Petits Ordinateurs (max 992px) */
@media (max-width: 992px) {
    .eni-header {
        padding: 15px 2px;
    }
    .eni-header-inner {
        flex-wrap: wrap;
        padding: 0.75rem 1.5rem;
    }

    .eni-menu-toggle {
        display: inline-flex;
    }

    .eni-navbar {
        display: none;
        width: 100%;
        margin-top: 0.75rem;
        padding-top: 0.75rem;
        border-top: 1px solid rgba(255, 255, 255, 0.15);
        animation: navItemFadeIn 0.2s ease-out;
    }

    .eni-header.menu-open .eni-navbar {
        display: block;
    }

    .eni-nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0.35rem;
        width: 100%;
    }

    .eni-nav-item {
        width: 100%;
    }

    .eni-nav-link {
        width: 100%;
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
        border-radius: var(--radius-sm);
        justify-content: flex-start;
        min-height: 44px;
    }
}

/* Mobiles & Petites Tablettes (max 768px) */
@media (max-width: 768px) {
    .eni-header-inner {
        padding: 0.75rem 1rem;
    }

    .eni-brand-container {
        gap: 0.75rem;
    }

    .eni-brand-text {
        font-size: 1.35rem;
    }
}

/* Très Petits Écrans Mobiles (max 480px) */
@media (max-width: 480px) {
    .eni-header-inner {
        padding: 0.625rem 0.75rem;
    }

    .eni-brand-text {
        font-size: 1.25rem;
    }
}