@import url('https://fonts.googleapis.com/css2?family=Libre+Baskerville:ital,wght@0,400;1,400&family=Inter:wght@300;400;500&display=swap');

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

:root {
    --vert: #3a6b4a;
    --vert-clair: #7aaa82;
    --noir: #111;
    --texte: #333;
    --texte-sec: #555;
    --texte-ter: #777;
    --bord: #e8e8e8;
    --beige: #f7f6f3;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    background: #fff;
    color: var(--texte);
    font-size: 16px;
    line-height: 1.8;
}

h1, h2, h3 { font-family: 'Libre Baskerville', serif; font-weight: 400; color: var(--noir); line-height: 1.2; }
em { font-style: italic; color: var(--vert); }
a { text-decoration: none; color: inherit; }

header {
    height: 64px;
    padding: 0 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--bord);
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 100;
    flex-wrap: nowrap;
    gap: 32px;
}

.logo { font-family: 'Libre Baskerville', serif; font-size: 20px; color: var(--noir); white-space: nowrap; flex-shrink: 0; }

nav { display: flex; gap: 28px; flex-shrink: 0; }

nav a {
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--texte-ter);
    transition: color 0.2s;
    white-space: nowrap;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--noir);
    transition: width 0.25s ease;
}

nav a:hover::after, nav a.actif::after { width: 100%; }
nav a:hover, nav a.actif { color: var(--noir); }

.hero { display: grid; grid-template-columns: 1fr 1fr; min-height: 520px; }

.hero-left { padding: 80px 56px; display: flex; flex-direction: column; justify-content: center; }

.hero-tag { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--vert); margin-bottom: 32px; }

.hero h1 { font-size: 52px; margin-bottom: 24px; }

.hero-texte { font-size: 16px; color: var(--texte-sec); line-height: 1.9; margin-bottom: 44px; max-width: 400px; }

.hero-btns { display: flex; gap: 20px; align-items: center; }

.hero-img {
    background: #e8e2d8;
    background-image: url('https://images.unsplash.com/photo-1522771739844-6a9f6d5f14af?w=1200&q=80');
    background-size: cover;
    background-position: center;
    min-height: 520px;
    transition: opacity 0.4s ease;
}

.hero-left > * {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards;
}

.hero-tag { animation-delay: 0.1s; }
.hero h1 { animation-delay: 0.25s; }
.hero-texte { animation-delay: 0.4s; }
.hero-btns { animation-delay: 0.55s; }

@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

.btn {
    background: var(--noir);
    color: #fff;
    padding: 14px 32px;
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    display: inline-block;
    transition: background 0.2s, transform 0.2s;
    position: relative;
    overflow: hidden;
}

.btn:hover { background: #333; transform: translateY(-2px); }

.btn::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: rgba(255,255,255,0.15);
    transition: left 0.4s ease;
}

.btn:hover::after { left: 100%; }

.btn-ghost {
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--texte-sec);
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    text-decoration: underline;
    text-underline-offset: 4px;
    display: inline-block;
}

.chiffres { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--bord); border-bottom: 1px solid var(--bord); }

.chiffre { padding: 48px 0; text-align: center; border-right: 1px solid var(--bord); }
.chiffre:last-child { border-right: none; }

.chiffre-n { font-family: 'Libre Baskerville', serif; font-size: 42px; font-style: italic; color: var(--vert); display: block; transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
.chiffre:hover .chiffre-n { transform: scale(1.1); }

.chiffre-l { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--texte-ter); margin-top: 8px; display: block; }

.bloc { padding: 80px 48px; }
.bloc-beige { background: var(--beige); }
.bloc-noir { background: var(--noir); }

.bloc-head { margin-bottom: 56px; }
.bloc-h { font-size: 36px; margin-bottom: 10px; }
.bloc-sous { font-size: 15px; color: var(--texte-sec); margin-top: 8px; }
.bloc-noir .bloc-h { color: #fff; }
.bloc-noir .bloc-sous { color: #666; }

.g4 { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--bord); }

.gs { padding: 36px 28px; border-right: 1px solid var(--bord); transition: transform 0.3s ease, background 0.3s ease; }
.gs:last-child { border-right: none; }
.gs:hover { transform: translateY(-4px); background: #fafafa; }

.gs-n { font-size: 12px; color: #999; margin-bottom: 14px; font-family: 'Libre Baskerville', serif; font-style: italic; display: block; }
.gs-h { font-size: 15px; color: var(--noir); margin-bottom: 10px; font-weight: 500; }
.gs-p { font-size: 14px; color: var(--texte-sec); line-height: 1.8; }

.g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #2a2a2a; }

.gp { background: var(--noir); padding: 36px 28px; transition: transform 0.3s ease, background 0.3s ease; }
.gp:hover { transform: translateY(-4px); background: #1c1c1c; }

.gp-n { font-size: 12px; color: #666; margin-bottom: 14px; font-family: 'Libre Baskerville', serif; font-style: italic; display: block; }
.gp-h { font-size: 15px; color: #fff; margin-bottom: 10px; font-weight: 500; }
.gp-p { font-size: 14px; color: #888; line-height: 1.8; }

.citation { padding: 96px 48px; text-align: center; background: var(--beige); border-top: 1px solid var(--bord); border-bottom: 1px solid var(--bord); }
.citation blockquote { font-family: 'Libre Baskerville', serif; font-size: 26px; font-style: italic; color: var(--noir); line-height: 1.6; max-width: 680px; margin: 0 auto 24px; }
.citation cite { font-size: 11px; letter-spacing: 3px; text-transform: uppercase; color: var(--texte-ter); }

.tarifs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--bord); border: 1px solid var(--bord); margin-top: 56px; align-items: stretch; }

.tarif { background: #fff; padding: 48px 36px; display: flex; flex-direction: column; transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease; }
.tarif:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.1); z-index: 2; position: relative; }
.tarif.featured { background: var(--vert); }

.tarif-ey { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--texte-ter); margin-bottom: 20px; display: block; }
.tarif.featured .tarif-ey { color: var(--vert-clair); }

.tarif-n { font-family: 'Libre Baskerville', serif; font-size: 24px; color: var(--noir); margin-bottom: 24px; }
.tarif.featured .tarif-n { color: #fff; }

.tarif-prix { font-family: 'Libre Baskerville', serif; font-size: 52px; font-style: italic; color: var(--noir); line-height: 1; display: block; }
.tarif.featured .tarif-prix { color: #fff; }

.tarif-per { font-size: 13px; color: var(--texte-ter); margin-top: 6px; margin-bottom: 24px; display: block; }
.tarif.featured .tarif-per { color: var(--vert-clair); }

.tarif-desc { font-size: 14px; color: var(--texte-sec); line-height: 1.8; margin-bottom: 32px; flex: 1; }
.tarif.featured .tarif-desc { color: #c8dfc8; }

.tarif-btn { width: 100%; padding: 13px; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; font-family: 'Inter', sans-serif; cursor: pointer; background: none; border: 1px solid var(--bord); color: var(--texte-sec); transition: all 0.2s; display: block; text-align: center; }
.tarif-btn:hover { border-color: var(--noir); color: var(--noir); }
.tarif.featured .tarif-btn { background: #fff; color: var(--vert); border: none; }

.partenaires-grid { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--bord); background: #fff; margin-top: 56px; }

.partenaire { padding: 32px 20px; border-right: 1px solid var(--bord); text-align: center; transition: transform 0.3s ease, background 0.3s ease; }
.partenaire:last-child { border-right: none; }
.partenaire:hover { transform: translateY(-4px); background: #fafafa; }
.partenaire-h { font-size: 14px; color: var(--noir); margin-bottom: 6px; font-weight: 500; }
.partenaire-p { font-size: 13px; color: var(--texte-sec); line-height: 1.7; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.contact h2 { font-size: 42px; margin-bottom: 16px; color: var(--noir); }
.contact-texte { font-size: 15px; color: var(--texte-sec); line-height: 1.9; margin-bottom: 48px; }
.contact-infos { display: flex; flex-direction: column; gap: 24px; }
.contact-lbl { font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: var(--vert); display: block; margin-bottom: 4px; }
.contact-val { font-size: 15px; color: var(--texte); display: block; }

.champ { margin-bottom: 24px; }
.champ label { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--texte-ter); display: block; margin-bottom: 10px; }
.champ input, .champ textarea { width: 100%; border: none; border-bottom: 1px solid var(--bord); padding: 10px 0; font-family: 'Inter', sans-serif; font-size: 15px; color: var(--texte); outline: none; background: none; transition: border-color 0.2s; }
.champ input:focus, .champ textarea:focus { border-bottom-color: var(--noir); }
.champ textarea { resize: vertical; height: 80px; }

footer { padding: 24px 48px; border-top: 1px solid var(--bord); display: flex; justify-content: space-between; align-items: center; }
.footer-logo { font-family: 'Libre Baskerville', serif; font-style: italic; font-size: 15px; color: var(--texte-ter); }
.footer-copy { font-size: 12px; color: var(--texte-ter); }

[data-animate] { opacity: 0; transform: translateY(30px); transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
[data-animate].visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; }
    .hero-img { min-height: 280px; }
    .g4 { grid-template-columns: 1fr 1fr; }
    .g3 { grid-template-columns: 1fr; }
    .tarifs-grid { grid-template-columns: 1fr; gap: 0; }
    .partenaires-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .chiffres { grid-template-columns: 1fr; }
    header { padding: 0 20px; }
    .bloc { padding: 56px 20px; }
    .hero-left { padding: 56px 20px; }
    .hero h1 { font-size: 36px; }
}