/* OPTICAL FIBRE — Style commun à toutes les pages */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,700&display=swap');

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
    --blue:#1a5276;--blue-dk:#0e2f44;--blue-lt:#2e86c1;
    --orange:#e67e22;--orange-dk:#d35400;--orange-lt:#f5b041;
    --green:#27ae60;--green-lt:#d5f5e3;
    --dark:#2c3e50;--txt:#444;--txt-lt:#666;--txt-dk:#222;
    --bg:#fff;--bg2:#f4f6f8;--bgw:#fef9f0;
    --brd:#ddd;--brd-lt:#eee;
}
html{scroll-behavior:smooth}
body{font-family:'Open Sans',Arial,sans-serif;color:var(--txt);line-height:1.65;background:var(--bg)}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.w{max-width:1100px;margin:0 auto;padding:0 20px}

/* BANDEAU PROMO */
.promo{background:var(--orange);padding:10px 0}
.promo .w{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.promo-txt{color:#fff;font-size:.85rem;font-weight:600}
.promo-btn{background:#fff;color:var(--orange-dk);padding:7px 20px;border-radius:4px;font-weight:700;font-size:.82rem;white-space:nowrap}
.promo-btn:hover{background:var(--bg2)}

/* NAV */
.nav{background:var(--bg);border-bottom:1px solid var(--brd);position:sticky;top:0;z-index:100;box-shadow:0 1px 6px rgba(0,0,0,.05)}
.nav .w{display:flex;align-items:center;justify-content:space-between;height:68px}
.nav-logo img{height:48px}
.nav-links{display:flex;align-items:center;gap:0}
.nav-links a{padding:22px 14px;font-size:.84rem;font-weight:600;color:var(--dark);border-bottom:3px solid transparent;transition:.2s}
.nav-links a:hover,.nav-links a.on{color:var(--orange);border-bottom-color:var(--orange)}
.nav-tel{display:flex;align-items:center;gap:8px;font-size:1.05rem;font-weight:800;color:var(--blue);background:var(--bg2);padding:8px 16px;border-radius:6px;border:1px solid var(--brd)}
.nav-tel svg{color:var(--orange);width:18px;height:18px}
.mob-btn{display:none;background:none;border:1px solid var(--brd);border-radius:6px;padding:7px 10px;cursor:pointer}
.mob-btn span{display:block;width:20px;height:2px;background:var(--dark);margin:4px 0}

/* BOUTONS */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:5px;font-weight:700;font-size:.9rem;transition:.2s;border:none;cursor:pointer}
.btn svg{width:18px;height:18px}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:var(--orange-dk)}
.btn-white{background:#fff;color:var(--blue);border:2px solid #fff}
.btn-white:hover{background:transparent;color:#fff;border-color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dk)}
.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}

/* SECTIONS */
section{padding:56px 0}
.stit{text-align:center;margin-bottom:40px}
.stit h2{font-size:1.35rem;color:var(--orange);margin-bottom:10px;text-transform:uppercase;font-weight:800;font-style:italic}
.stit p{color:var(--txt-lt);max-width:580px;margin:0 auto;font-size:.88rem}
.bg-alt{background:var(--bg2);border-top:1px solid var(--brd-lt);border-bottom:1px solid var(--brd-lt)}
.bg-warm{background:var(--bgw);border-top:1px solid #f5deb3;border-bottom:1px solid #f5deb3}

/* PAGE HERO (pages internes) */
.page-hero{position:relative;background:var(--blue-dk);padding:48px 0;text-align:center}
.page-hero h1{font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.75);font-size:.9rem;max-width:600px;margin:0 auto}

/* GARANTIE */
.gar{background:var(--blue-dk);color:#fff;text-align:center;padding:48px 20px}
.gar-in{max-width:680px;margin:0 auto}
.gar-badge{display:inline-flex;width:80px;height:80px;border:3px solid var(--orange);border-radius:50%;align-items:center;justify-content:center;font-size:1.8rem;margin-bottom:16px}
.gar h2{color:var(--orange-lt);font-size:1.1rem;margin-bottom:14px;text-transform:uppercase;font-weight:800}
.gar p{color:rgba(255,255,255,.72);font-size:.86rem;line-height:1.7}

/* AVIS */
.avis-g{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.avis-c{background:var(--bg2);border:1px solid var(--brd-lt);border-radius:6px;padding:22px 18px}
.avis-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avis-av{width:38px;height:38px;background:var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.8rem}
.avis-nm{font-weight:700;color:var(--txt-dk);font-size:.88rem}
.avis-loc{font-size:.75rem;color:var(--txt-lt)}
.avis-stars{color:var(--orange);margin-bottom:8px;letter-spacing:2px;font-size:.85rem}
.avis-txt{font-size:.84rem;color:var(--txt);line-height:1.6;font-style:italic}
.avis-note{text-align:center;margin-top:24px;background:var(--bgw);border:1px dashed var(--orange);border-radius:6px;padding:14px 20px;font-size:.82rem;color:var(--txt-lt)}
.avis-note a{color:var(--orange);font-weight:700}

/* CTA FINAL */
.cta-final{background:linear-gradient(135deg,var(--orange),var(--orange-dk));padding:48px 20px;text-align:center;color:#fff}
.cta-final h2{color:#fff;font-size:1.3rem;margin-bottom:8px;font-weight:800}
.cta-final p{color:rgba(255,255,255,.85);font-size:.92rem;margin-bottom:22px}
.cta-final .btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* FOOTER */
.footer{background:var(--blue-dk);color:rgba(255,255,255,.6);padding:48px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:32px;margin-bottom:32px}
.footer-brand img{height:44px;filter:brightness(1.8);margin-bottom:12px}
.footer-brand p{font-size:.82rem;line-height:1.65}
.footer h4{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--orange);margin-bottom:14px}
.footer ul{list-style:none}
.footer ul li{margin-bottom:8px}
.footer ul a{font-size:.82rem;color:rgba(255,255,255,.5);transition:.2s}
.footer ul a:hover{color:#fff}
.f-contact div{display:flex;gap:8px;align-items:flex-start;margin-bottom:10px;font-size:.82rem}
.f-contact svg{flex-shrink:0;color:var(--orange);width:14px;height:14px;margin-top:3px}
.footer-bot{border-top:1px solid rgba(255,255,255,.08);padding-top:16px;display:flex;justify-content:space-between;font-size:.74rem;color:rgba(255,255,255,.3)}

/* FAB */
.fab{display:none;position:fixed;bottom:20px;right:20px;z-index:200;width:56px;height:56px;background:var(--orange);border-radius:50%;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(230,126,34,.45)}
.fab svg{color:#fff;width:24px;height:24px}

/* RESPONSIVE */
@media(max-width:1024px){
    .footer-grid{grid-template-columns:repeat(2,1fr)}
    .avis-g{grid-template-columns:1fr}
}
@media(max-width:768px){
    .promo{font-size:.8rem;padding:8px 0}
    .promo .w{justify-content:center;text-align:center}
    .nav-links{display:none}
    .mob-btn{display:block}
    .nav-links.open{display:flex;flex-direction:column;position:absolute;top:68px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--brd);padding:12px 20px;z-index:99;box-shadow:0 10px 30px rgba(0,0,0,.1)}
    .nav-links.open a{padding:12px 16px;border-bottom:none}
    .nav-tel{display:none}
    section{padding:40px 0}
    .footer-grid{grid-template-columns:1fr}
    .footer-bot{flex-direction:column;gap:6px;text-align:center}
    .fab{display:flex}
    .cta-final .btns{flex-direction:column;align-items:center}
}