/* VARIABLES COULEURS (Basées sur vos images) */
:root {
    --navy: #1d3a5a;
	--blueindus: #206780;
    --orange: #e66b33;
    --dark-blue: #16243e;
    --light-grey: #f4f7f9;
    --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Montserrat', sans-serif; color: #333; line-height: 1.6; overflow-x: hidden; }

/* HEADER & NAV */
header { background: rgba(255,255,255,0.95); padding: 15px 5%; position: fixed; width: 100%; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo { height: 50px; }
nav ul { display: flex; list-style: none; }
nav ul li { margin-left: 30px; }
nav ul li a { text-decoration: none; color: var(--navy); font-weight: 700; font-size: 0.9rem; transition: 0.3s; }
.btn-contact { background: var(--orange); color: white !important; padding: 10px 20px; border-radius: 5px; }

/* HERO SECTION AVEC IMAGE DE FOND */
.hero {
    height: 100vh;
    background: url('fond-lignes.png') no-repeat center right;
    background-size: contain;
    display: flex;
    align-items: center;
    padding: 0 10%;
    background-color: #fff;
}
.hero-content h1 { font-size: 3.5rem; line-height: 1.2; font-weight: 800; }
.txt-navy { color: var(--navy); }
.txt-blueindus { color: var(--blueindus); }
.txt-orange { color: var(--orange); }
.txt-dark-blue { color: var(--dark-blue); }
.subtitle { font-size: 1.5rem; margin: 20px 0; color: #555; }

/* SECTIONS STRUCTURE */
.section { padding: 120px 10%; min-height: 80vh; display: flex; align-items: center; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; }
.section-title { font-size: 2.5rem; margin-bottom: 40px; position: relative; }
.section-title::after { content: ''; display: block; width: 60px; height: 5px; background: var(--orange); margin-top: 10px; }

/* CONTRASTES */
.dark-bg { background-color: var(--dark-blue); color: white; }
.light-bg { background-color: var(--light-grey); }
.navy-bg { background-color: var(--navy); color: white; }
.white { color: white; }

/* GRIDS */
.grid-benefits, .grid-offers { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; margin-top: 50px; }

.card { background: rgba(255,255,255,0.05); padding: 40px; border-radius: 10px; border-left: 5px solid var(--orange); }
.offer-box { background: white; padding: 40px; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); transition: 0.3s; }
.offer-box.highlight { background: var(--navy); color: white; transform: scale(1.0); }
.step { font-size: 0.8rem; font-weight: 700; color: var(--orange); letter-spacing: 2px; }
.price { display: block; margin-top: 20px; font-weight: 800; color: var(--orange); }

/* BOUTONS */
.btn-main { display: inline-block; background: var(--navy); color: white; padding: 15px 35px; border-radius: 5px; text-decoration: none; font-weight: 700; margin-top: 20px; transition: 0.3s; }
.btn-main:hover { background: var(--orange); }

/* ABOUT */
.flex-about { display: flex; align-items: center; gap: 50px; }
.quote { font-style: italic; font-size: 1.4rem; margin-top: 30px; border-left: 3px solid var(--orange); padding-left: 20px; }

/* FOOTER */
footer { padding: 50px 10%; background: #111; color: #777; font-size: 0.8rem; }
.footer-links a { color: #aaa; margin-left: 20px; text-decoration: none; }

@media (max-width: 768px) {
    .hero-content h1 { font-size: 2rem; }
    .hero { background-size: cover; text-align: center; }
    nav ul { display: none; }
}