/* RESET */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    padding-top: 80px;
    font-family: 'Segoe UI', system-ui, sans-serif;
    color: var(--color-text);
    line-height: 1.6;
	background-color: var(--color-white);

}

html {
    scroll-behavior: smooth;
}

/* VARIABLES — palette 100% bleu */
:root {
    --color-navy: #1c2a6b;
    --color-navy-dark: #131d4d;
    --color-indigo: #10163d;
    --color-blue-mid: #3556c8;
    --color-sky: #7fd4f0;
    --color-blue-pale: #e8f2fb;
    --color-white: #ffffff;
    --color-text: #1a1a1a;
    --color-bg-light: #f4f6fb;
    --color-border: #dfe3f0;
}

/* HEADER */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: rgba(28, 42, 107, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--color-white);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.50);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.site-header.hiddenNav {
    transform: translateY(-100%);
}

.site-header.viewNav {
    transform: translateY(0);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
    padding: 1rem 1.5rem;
}

.link-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-white);
    text-decoration: none;
}

.logo-picture {
    width: 48px;
    height: 48px;
    object-fit: contain;
    display: block;
}

.logo-texte {
    display: flex;
    flex-direction: column;
    font-weight: 700;
    font-size: 1.1rem;
    line-height: 1.3;
    color: var(--color-white);
}

.logo-texte .tagline {
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--color-sky);
}

.main-nav ul {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-sky);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle .bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    margin: 5px 0;
}

.page-hero-v2 {
    position: relative;
    background-color: var(--color-navy);
    color: var(--color-white);
    text-align: center;
    padding: 4rem 1.5rem 3.5rem;
    overflow: hidden;
}

.page-hero-v2::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 60%, var(--color-blue-mid) 75%, var(--color-navy-dark) 100%);
    opacity: 0.6;
}

.page-hero-v2 * {
    position: relative;
    z-index: 1;
}

.page-hero-v2 h1 {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 2.6rem;
    margin: 0 0 0.75rem;
}

.page-hero-v2-subtitle {
    color: var(--color-sky);
    font-size: 1.1rem;
    font-style: italic;
    margin: 0;
}

/* FOOTER */
.site-footer {
    background-color: var(--color-indigo);
    color: var(--color-white);
    padding: 2rem 1.5rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.footer-nav ul {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-nav a {
    color: var(--color-sky);
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-nav a:hover {
    text-decoration: underline;
}

.social-links a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.9rem;
}

.copyright {
    font-size: 0.8rem;
    color: #8fa0d9;
    margin: 0;
}

/* RESPONSIVE MOBILE (nav) */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-navy);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .main-nav.is-open {
        max-height: 300px;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 0;
        padding: 1rem 1.5rem;
    }

    .main-nav li {
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
}