:root{
  --bg:#f9fafb;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --accent:#2563eb;
  --line:#e5e7eb;
  --radius:18px;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
}
a{text-decoration:none;color:inherit}
.wrap{max-width:1100px;margin:auto;padding:0 20px}

/* HEADER */
header{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
}
.brand-wrap{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-logo{
  height:34px;
  width:auto;
}
.brand-text{
  font-weight:800;
  letter-spacing:.4px;
}
.burger{
  width:36px;height:36px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
}
.burger span{
  width:16px;height:2px;
  background:#111;
  position:relative;
}
.burger span:before,
.burger span:after{
  content:"";
  position:absolute;
  width:16px;height:2px;
  background:#111;
  left:0;
}
.burger span:before{top:-6px}
.burger span:after{top:6px}

/* DESKTOP NAV */
.nav-desktop{
  display:flex;
  align-items:center;
  gap:26px;
}

.nav-desktop a{
  font-size:14px;
  font-weight:600;
  color:#111827;
  position:relative;
  padding:6px 0;
}

.nav-desktop a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-6px;
  width:0;
  height:2px;
  background:var(--accent);
  transition:width .25s ease;
}

.nav-desktop a:hover::after{
  width:100%;
}

/* HERO */
.hero{
  padding:80px 0 60px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:40px;
}
.hero h1{
  font-size:40px;
  line-height:1.2;
  margin:0 0 18px;
}
.hero p{
  font-size:18px;
  color:var(--muted);
  max-width:560px;
}
.hero-card{
  background:linear-gradient(135deg,#eef2ff,#f8fafc);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
}
.hero-card strong{
  display:block;
  margin-bottom:6px;
  color:#1e40af;
}
.soft-link{
  display:inline-block;
  margin-top:18px;
  font-weight:600;
  color:var(--accent);
}

/* SECTION */
section{padding:80px 0}
.section-head{
  max-width:720px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:28px;
  margin:0 0 12px;
}
.section-head p{
  font-size:16px;
  color:var(--muted);
}

/* FEATURES */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
}
.feature h3{
  margin:0 0 10px;
  font-size:18px;
}
.feature p{
  margin:0;
  color:var(--muted);
}

/* BRAND OFFICIAL */
.brand-section{
  padding:90px 0;
}
.brand-box{
  background:linear-gradient(135deg,#f8fafc,#eef2ff);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:46px;
  max-width:860px;
}
.brand-box h2{
  margin-top:0;
  font-size:28px;
}
.brand-box p{
  margin-bottom:18px;
  font-size:16px;
}

/* CORE CONTENT */
.content-box{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:46px;
}
.content-box h2{
  margin-top:0;
  font-size:26px;
}
.content-box p{
  margin-bottom:18px;
}

/* FAQ */
.faq details{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:18px 20px;
  margin-bottom:14px;
}
.faq summary{
  font-weight:600;
  cursor:pointer;
}
.faq p{
  margin-top:12px;
  color:var(--muted);
}

/* FOOTER */
footer{
  background:#0f172a;
  color:#cbd5f5;
  padding:70px 0 30px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:40px;
}
footer h4{
  color:#fff;
  margin:0 0 12px;
}
footer a{
  display:block;
  font-size:14px;
  margin-bottom:8px;
  color:#cbd5f5;
}
.copy{
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:40px;
  padding-top:20px;
  font-size:13px;
  color:#94a3b8;
}

.mobile-nav{
  position:fixed;
  inset:0;
  background:rgba(15,23,42,.55);
  backdrop-filter:blur(4px);
  display:none;
  z-index:60;
}

.mobile-nav.active{
  display:block;
}

.nav-inner{
  background:#fff;
  width:80%;
  max-width:320px;
  height:100%;
  padding:28px;
  box-shadow:0 20px 40px rgba(0,0,0,.12);
}

.nav-inner a{
  display:block;
  padding:14px 0;
  font-size:16px;
  font-weight:600;
  border-bottom:1px solid var(--line);
}

.hero-visual{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:#fff;
}

.hero-visual img{
  width:100%;
  height:auto;
  display:block;
}

/* RESPONSIVE HEADER */
@media(max-width:900px){
  .nav-desktop{display:none}
  .burger{display:flex}
}

@media(min-width:901px){
  .burger{display:none}
}

@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
}