/* UESE — QHSE v2 with premium responsive navbar */
:root{
  --brand:#0a4a82; --accent:#00a0c6; --text:#1f2937; --muted:#6b7280;
  --bg:#f7f9fc; --card:#ffffff; --glass:rgba(255,255,255,.6);
  --blur:10px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,Arial;color:var(--text);background:var(--bg)}

/* Progress bar */
.progress-bar{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--accent),#7dd3fc);width:0;z-index:50}

/* Navbar */
.navbar{position:sticky;top:0;z-index:40;backdrop-filter:saturate(1.2) blur(var(--blur));
  background:var(--glass);border-bottom:1px solid rgba(15,23,42,.08);transition:background .25s, box-shadow .25s}
.navbar.scrolled{background:#fff;box-shadow:0 6px 18px rgba(0,0,0,.06)}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:10px 16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-logo{height:36px}
.brand-name{color:var(--brand);font-weight:700;display:none}
.nav-links{display:flex;gap:6px;align-items:center;justify-content:center}
.nav-link{padding:8px 12px;border-radius:999px;text-decoration:none;color:#0f172a;border:1px solid transparent}
.nav-link:hover{background:#eef6ff;border-color:#cfe2ff;color:var(--brand)}
.nav-link.active{background:linear-gradient(90deg,#e0f2fe,#dbeafe);border-color:#c7d2fe;color:#1e3a8a;font-weight:600}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn{display:inline-block;padding:10px 14px;border-radius:12px;background:var(--brand);color:#fff;text-decoration:none;border:1px solid transparent}
.btn-small{padding:8px 12px}
.btn-ghost{background:#fff;color:var(--brand);border-color:#c7d2fe}
.btn:hover{filter:brightness(1.05)}
.hamburger{display:none;flex-direction:column;gap:4px;background:transparent;border:none;padding:6px;border-radius:8px}
.hamburger span{display:block;width:22px;height:2px;background:#0f172a}

/* Mobile menu */
.mobile-menu{position:fixed;inset:0;background:rgba(2,6,23,.55);backdrop-filter:blur(6px);display:none;z-index:45}
.mobile-menu.open{display:block}
.mobile-menu-content{position:absolute;right:0;top:0;bottom:0;width:min(86vw,420px);background:#fff;box-shadow:-8px 0 24px rgba(0,0,0,.1);display:flex;flex-direction:column}
.mobile-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #e5e7eb}
.mobile-logo{height:40px}
.close{background:#fff;border:1px solid #e5e7eb;font-size:22px;line-height:1;border-radius:10px;width:36px;height:36px}
.mobile-links{display:flex;flex-direction:column;padding:12px}
.mobile-links .nav-link{padding:12px 10px;border-radius:12px}
.mobile-cta{margin:10px 8px}

/* Hero */
.hero{display:grid;grid-template-columns:1fr;gap:16px;place-items:center;padding:72px 24px 24px;background:linear-gradient(135deg,#eef6ff 0%,#f7fbff 100%)}
.hero-text{max-width:900px;text-align:center}
.hero-text h1{margin:0 0 8px;font-size:40px;line-height:1.1;color:var(--brand)}
.hero-text p{margin:0 0 16px;color:var(--muted);font-size:18px}
.cta{display:flex;gap:10px;justify-content:center}

/* Slides */
.slides{max-width:1100px;margin:0 auto;padding:24px}
.slide{background:#fff;border:1px solid #e5e7eb;border-radius:16px;box-shadow:0 10px 24px rgba(0,0,0,.04);padding:22px;margin:16px 0}
.slide h2{margin:0 0 8px;color:var(--brand)}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cols.three{grid-template-columns:repeat(3,1fr)}
ul.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
ul.chips li{background:#eef2ff;color:#1e3a8a;border:1px solid #c7d2fe;border-radius:24px;padding:6px 10px;font-size:14px}

/* Footer */
.site-footer{padding:22px 24px;color:var(--muted);text-align:center}

/* Responsive */
@media (max-width: 1100px){ .brand-name{display:inline} }
@media (max-width: 980px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .cols, .cols.three{grid-template-columns:1fr}
}
@media print{
  @page{size:A4;margin:12mm}
  .navbar, .progress-bar, .mobile-menu, .btn{display:none !important}
  .slides{padding:0}
  .slide{box-shadow:none;border:none;page-break-inside:avoid}
}
.hide{display:none!important}