:root {
    --vert: #22c55e;
    --vert-clair: #4ade80;
    --vert-doux: rgba(34, 197, 94, 0.14);
    --fond: #050b12;
    --fond-carte: rgba(255, 255, 255, 0.045);
    --bordure: rgba(34, 197, 94, 0.22);
    --texte: #e8eef8;
    --texte-doux: #9aa8ba;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Manrope", "Segoe UI", Arial, sans-serif;
    background:
        radial-gradient(circle at 12% 0%, rgba(34, 197, 94, 0.16), transparent 45%),
        radial-gradient(circle at 88% 15%, rgba(34, 197, 94, 0.10), transparent 40%),
        var(--fond);
    color: var(--texte);
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

img,
svg {
    display: block;
}

/* ---------- En-tête ---------- */

#entete {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 6%;
    background: rgba(5, 11, 18, 0.75);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.02em;
}

#logo-rond {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--vert);
    color: var(--vert);
    font-size: 18px;
}

.bouton-principal {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--vert), #16a34a);
    color: #04140a;
    font-weight: 700;
    font-size: 14.5px;
    box-shadow: 0 8px 22px rgba(34, 197, 94, 0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    white-space: nowrap;
}

.bouton-principal:hover,
.bouton-principal:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(34, 197, 94, 0.35);
    filter: brightness(1.05);
}

.bouton-principal.grand {
    padding: 16px 30px;
    font-size: 16.5px;
}

.bouton-principal:focus-visible {
    outline: 2px solid var(--vert-clair);
    outline-offset: 3px;
}

/* ---------- Structure générale ---------- */

main {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 6%;
}

.section {
    padding: 70px 0;
}

.titre-section {
    text-align: center;
    font-size: 30px;
    margin: 0 0 42px;
    letter-spacing: -0.02em;
}

/* ---------- Héro ---------- */

#hero {
    text-align: center;
    padding: 100px 0 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: var(--vert-doux);
    border: 1px solid var(--bordure);
    color: var(--vert-clair);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    margin-bottom: 24px;
}

#hero h1 {
    font-size: clamp(34px, 5.2vw, 58px);
    font-weight: 800;
    letter-spacing: -0.03em;
    max-width: 820px;
    margin: 0 0 22px;
}

#hero h1 .accent {
    background: linear-gradient(135deg, var(--vert-clair), var(--vert));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sous-titre {
    max-width: 620px;
    color: var(--texte-doux);
    font-size: 17.5px;
    margin: 0 0 36px;
}

.actions-hero {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ---------- Étapes ---------- */

.etapes {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 18px;
}

.etape {
    position: relative;
    flex: 1;
    max-width: 260px;
    padding: 30px 22px;
    background: var(--fond-carte);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    text-align: center;
    transition: 0.25s;
}

.etape:hover {
    border-color: var(--bordure);
    transform: translateY(-4px);
}

.etape .numero {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--vert), #16a34a);
    color: #04140a;
    font-weight: 800;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.etape .icone {
    font-size: 34px;
    margin: 14px 0 12px;
}

.etape h3 {
    margin: 0 0 8px;
    font-size: 17px;
}

.etape p {
    margin: 0;
    color: var(--texte-doux);
    font-size: 14px;
}

.fleche-etape {
    display: flex;
    align-items: center;
    color: var(--vert);
    font-size: 22px;
    font-weight: 700;
    opacity: 0.7;
}

/* ---------- Métiers ---------- */

.grille-metiers {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    max-width: 780px;
    margin: 0 auto;
}

.metier {
    padding: 12px 20px;
    border-radius: 999px;
    background: var(--fond-carte);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-weight: 600;
    font-size: 14.5px;
    transition: 0.2s;
}

.metier:hover {
    border-color: var(--bordure);
    background: var(--vert-doux);
    transform: translateY(-2px);
}

/* ---------- Avantages ---------- */

.grille-avantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.carte-avantage {
    padding: 28px 24px;
    background: var(--fond-carte);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    transition: 0.25s;
}

.carte-avantage:hover {
    transform: translateY(-4px);
    border-color: var(--bordure);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
}

.carte-avantage .icone {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    border-radius: 12px;
    background: var(--vert-doux);
    margin-bottom: 16px;
}

.carte-avantage h3 {
    margin: 0 0 8px;
    font-size: 16.5px;
}

.carte-avantage p {
    margin: 0;
    color: var(--texte-doux);
    font-size: 14.5px;
}

/* ---------- Appel à l'action ---------- */

#appel-action {
    text-align: center;
    margin: 30px 0 80px;
    padding: 60px 30px;
    border-radius: 26px;
    background: linear-gradient(160deg, rgba(34, 197, 94, 0.14), rgba(34, 197, 94, 0.03));
    border: 1px solid var(--bordure);
}

#appel-action h2 {
    margin: 0 0 12px;
    font-size: 28px;
    letter-spacing: -0.02em;
}

#appel-action p {
    margin: 0 0 26px;
    color: var(--texte-doux);
}

/* ---------- Pied de page ---------- */

#pied-de-page {
    text-align: center;
    padding: 36px 6% 44px;
    color: var(--texte-doux);
    font-size: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

#pied-de-page strong {
    color: var(--texte);
}

#pied-de-page p {
    margin: 6px 0;
}

.copyright {
    opacity: 0.6;
    font-size: 12.5px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .etapes {
        flex-direction: column;
        align-items: center;
    }

    .fleche-etape {
        transform: rotate(90deg);
    }

    .etape {
        max-width: 320px;
        width: 100%;
    }
}

@media (max-width: 640px) {
    #entete {
        padding: 16px 5%;
    }

    .bouton-principal span,
    .logo span {
        font-size: 15px;
    }

    #hero {
        padding: 70px 0 50px;
    }

    .section {
        padding: 50px 0;
    }

    #appel-action {
        padding: 44px 22px;
    }
}