/* CHARTE GRAPHIQUE ALEXANDRIA */
:root {
    --yellow: #FFEB00; /* Jaune vif du pitch deck [6, 21] */
    --black: #000000;
    --white: #FFFFFF;
    --grey: #f4f4f4;
    --font-main: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--black);
    line-height: 1.6;
    scroll-behavior: smooth;
}

h1, h2, h3 {
    font-weight: 900;
    text-transform: none;
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.text-white { color: var(--white); }
.text-white-dim { color: rgba(255, 255, 255, 0.8); }

/* EFFETS DE SURLIGNAGE */
.highlight {
    background-color: var(--yellow);
    padding: 0 5px;
}

.highlight-black {
    background-color: var(--black);
    color: var(--yellow);
    padding: 5px 15px;
    display: inline-block;
}

/* LAYOUT ET SECTIONS */
section {
    padding: 100px 10%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bg-yellow { background-color: var(--yellow); }
.bg-white { background-color: var(--white); }
.bg-black { background-color: var(--black); }

/* HEADER */
header {
    background: var(--white);
    padding: 20px 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 5px solid var(--black);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -1px;
}

.logo-dot {
    color: var(--yellow);
    background: var(--black);
    padding: 0 5px;
    margin-left: 2px;
}

nav a {
    text-decoration: none;
    color: var(--black);
    font-weight: 700;
    margin-left: 25px;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.nav-cta {
    border: 2px solid var(--black);
    padding: 8px 15px;
}

/* HERO SECTION */
.hero h1 {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 30px;
}

.hero p {
    font-size: 1.8rem;
    max-width: 900px;
    font-weight: 500;
}

.hero-btns {
    margin-top: 40px;
}

/* BOUTONS */
.btn {
    padding: 18px 35px;
    font-size: 1.1rem;
    font-weight: 900;
    text-decoration: none;
    display: inline-block;
    transition: 0.3s;
    border: 4px solid var(--black);
    margin: 10px;
}

.btn-black {
    background: var(--black);
    color: var(--white);
}

.btn-black:hover {
    background: var(--white);
    color: var(--black);
}

.btn-outline {
    background: transparent;
    color: var(--black);
}

/* GRILLE DE CONTENU */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    width: 100%;
    margin-top: 60px;
}

.stat-card, .feat-card {
    padding: 40px;
    border: 5px solid var(--black);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    display: block;
    background: var(--yellow);
    margin-bottom: 10px;
}

.feat-card {
    border-color: var(--yellow);
    color: var(--white);
}

.feat-card h3 {
    color: var(--yellow);
}

/* FOOTER */
footer {
    padding: 60px 10%;
    background: var(--yellow);
    border-top: 5px solid var(--black);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-links a {
    display: block;
    color: var(--black);
    font-weight: 700;
    margin-top: 10px;
}

.footer-infomaniak img {
    margin-top: 5px;
    max-height: 50px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    header { flex-direction: column; gap: 15px; }
    nav a { margin: 0 10px; font-size: 0.8rem; }
}