*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI',Arial,sans-serif}
body{background:#000;color:#fff;line-height:1.6}
a{text-decoration:none}

/* HEADER */
header{background:#000;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0}
header h1{color:#FFD400;font-size:22px}
nav{display:flex}
nav a{color:#fff;margin-left:18px;font-size:14px}
nav a:hover{color:#FFD400}
.menu-toggle{display:none;font-size:26px;cursor:pointer;color:#FFD400}

/* HERO */
.hero{
  min-height:80vh;
  background:radial-gradient(60% 80% at 60% 40%, #1a1a1a 0%, #000 65%);
  display:flex;
  align-items:center;
}
.hero-inner{
  max-width:1200px;
  margin:auto;
  padding:80px 20px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:40px;
}
.badge{background:#FFD400;color:#000;padding:6px 12px;border-radius:20px;font-size:12px;font-weight:700;margin-right:8px}
.hero h2{font-size:56px;line-height:1.05;margin:14px 0}
.hero p{opacity:.9;margin-bottom:26px;max-width:640px}
.store-buttons img{height:48px;margin-right:12px}

/* APP SCREEN */
.app-preview img{
  width:280px;
  border-radius:36px;
  box-shadow:0 30px 80px rgba(0,0,0,.6);
}

/* SECTIONS */
.section{max-width:1100px;margin:60px auto;padding:0 20px;color:#ddd}
.section h3{text-align:center;font-size:28px;margin-bottom:10px}
.section p.sub{text-align:center;color:#aaa;margin-bottom:40px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#111;border-radius:16px;padding:26px;box-shadow:0 10px 30px rgba(0,0,0,.4)}

/* DOWNLOAD */
.download{background:#FFD400;color:#000;text-align:center;padding:70px 20px}
.download h3{font-size:32px;margin-bottom:12px}

/* FOOTER */
footer{background:#000;color:#aaa;text-align:center;padding:22px;font-size:13px}
footer a{color:#FFD400;margin:0 8px}

/* MOBILE */
@media(max-width:900px){
.menu-toggle{display:block}
nav{position:absolute;top:60px;left:0;right:0;background:#000;flex-direction:column;display:none}
nav.active{display:flex}
nav a{padding:14px;border-top:1px solid #222;margin:0}
.hero-inner{grid-template-columns:1fr}
.hero h2{font-size:36px}
.card-grid{grid-template-columns:1fr}
.app-preview{margin-top:40px}
}