:root{
  --bg-color:#FFFFFF;
  --primary-color:#0071E3;
  --primary-dark:#0066CC;
  --accent-color:#86868B;
  --text-color:#1D1D1F;

  --heading-font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --body-font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  --topbar-h:0px;
  --bottombar-h:0px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--body-font);
  color:var(--text-color);
  background:var(--bg-color);
  line-height:1.55;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;

  /* Index glisse sous le header/footer (mais sans masquer le contenu) */
  padding-top:var(--topbar-h);
  padding-bottom:var(--bottombar-h);
}

.container{width:min(980px,92%);margin-inline:auto}

a{color:var(--primary-color);text-decoration:none}
a:hover{color:var(--primary-dark)}
h1,h2,h3{font-family:var(--heading-font);letter-spacing:-0.02em}

/* ===== Topbar fixed (announcement + header) ===== */
#topbar{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1200;
}

/* Announcement */
#announcement{
  background:#1D1D1F;
  color:#fff;
  text-align:center;
  padding:.55rem 2.8rem;
  position:relative;
  font-size:.95rem;
}
#announcement button{
  position:absolute;right:.8rem;top:50%;
  transform:translateY(-50%);
  background:0;border:0;color:#fff;
  font-size:1.3rem;cursor:pointer;opacity:.9;
}
#announcement button:hover{opacity:1}
#announcement .marquee{overflow:hidden;white-space:nowrap}
#announcement .marquee span{display:inline-block;padding-left:100%;animation:marquee 18s linear infinite}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-100%)}}

/* Header */
header.site-header{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(0,0,0,.08);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:.7rem 0;
}
.nav-left{display:flex;align-items:center;gap:12px}
.burger{
  display:flex;flex-direction:column;justify-content:space-between;
  width:24px;height:18px;cursor:pointer;user-select:none;
}
.burger span{display:block;height:3px;background:var(--text-color);border-radius:2px}
.logo-wrap{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-wrap img{height:34px;width:auto;display:block}

/* ===== Side menu ===== */
#side-menu{
  position:fixed;top:0;left:-290px;height:100%;width:280px;
  background:#F5F5F7;
  box-shadow:18px 0 40px rgba(0,0,0,.12);
  padding:1.2rem 1rem;
  transition:left .28s ease;
  z-index:1300;
  overflow-y:auto;
}
#side-menu.open{left:0}
#side-menu .brand{display:flex;align-items:center;gap:10px;margin-bottom:1rem}
#side-menu .brand img{height:40px;width:auto;display:block}
#side-menu ul{list-style:none;padding:0;margin:0}
#side-menu li{margin:.65rem 0}
#side-menu a{display:block;padding:.25rem 0;color:var(--text-color);font-weight:600}
#side-menu a:hover{color:var(--primary-color)}
#side-menu .menu-cta{
  display:block;margin-top:1rem;
  background:var(--primary-color);color:#fff;
  text-align:center;padding:.75rem 1rem;
  border-radius:999px;text-decoration:none;font-weight:600;
}

/* Backdrop */
#backdrop{
  position:fixed;inset:0;background:rgba(0,0,0,.45);
  opacity:0;pointer-events:none;
  transition:opacity .2s ease;
  z-index:1150; /* sous header, au dessus du contenu */
}
#backdrop.open{opacity:1;pointer-events:auto}

/* ===== Sections / blocks ===== */
section{padding:4rem 1.3rem;scroll-margin-top:calc(var(--topbar-h) + 18px)}
.section-title{
  color:var(--text-color);
  font-size:clamp(1.8rem,3vw,2.6rem);
  line-height:1.12;
  margin:0 0 1rem;
}
.small{color:var(--accent-color);font-size:.98rem;margin:0 0 1rem}
.section-surface{
  background:#F5F5F7;
  border-radius:28px;
  padding:clamp(1.8rem,4vw,3rem);
  box-shadow:0 18px 60px rgba(0,0,0,.06);
}

/* Buttons */
.btn-primary{
  background:var(--primary-color);color:#fff;
  padding:.75rem 1.25rem;border-radius:999px;
  border:0;cursor:pointer;text-decoration:none;
  font-weight:600;letter-spacing:-0.01em;
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s ease, background .2s ease, box-shadow .2s ease;
  box-shadow:0 10px 24px rgba(0,0,0,.12);
}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-link{color:var(--primary-color);font-weight:600}
.btn-link:hover{color:var(--primary-dark)}

/* Hero */
.hero{padding-top:1.8rem}
.hero-media{position:relative;overflow:hidden;border-radius:22px}
.hero-media img{width:100%;display:block;height:56vh;min-height:360px;object-fit:cover}
.hero-copy{text-align:center;padding:clamp(1.4rem,3vw,2.2rem)}
.hero .eyebrow{display:inline-block;font-size:.95rem;color:var(--accent-color);margin-bottom:.75rem;font-weight:600}
.hero h1{font-size:clamp(2.1rem,5vw,3.5rem);line-height:1.05;margin:0 0 .8rem}
.hero p{max-width:60ch;margin:0 auto 1.2rem;color:var(--accent-color);font-size:clamp(1.05rem,2vw,1.2rem)}
.hero-actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}

/* Cards */
.grid{display:grid;gap:14px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card{
  background:#fff;
  border:1px solid rgba(0,0,0,.08);
  border-radius:18px;
  padding:16px 16px 14px;
  box-shadow:0 10px 30px rgba(0,0,0,.06);
}
.card h3{margin:.1rem 0 .4rem;font-size:1.15rem}
.card p{margin:0;color:var(--accent-color)}

/* Contact form (si tu l'actives) */
.form{display:grid;gap:12px;margin-top:1rem}
.input{
  width:100%;
  padding:.75rem 1rem;
  border:1px solid rgba(0,0,0,.14);
  border-radius:14px;
  background:#fff;
  outline:none;
  font:inherit;
}
textarea.input{min-height:130px;resize:vertical}

/* ===== Fixed footer ===== */
footer#bottombar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1190;
  background:rgba(245,245,247,.9);
  backdrop-filter:blur(16px);
  border-top:1px solid rgba(0,0,0,.08);
  padding:14px 0;
  color:var(--accent-color);
  font-size:.95rem;
}
footer#bottombar a{color:var(--primary-color);text-decoration:none}
footer#bottombar a:hover{color:var(--primary-dark)}