:root{
  --yellow:#f3da2c;
  --dark:#111;
  --gray:#666;
  --bg:#fff;
  --font:Inter,system-ui,Arial;
}

*{box-sizing:border-box;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:#111;
}

.topnav{
  position:sticky;
  top:0;
  background:#fff;
  border-bottom:1px solid #e5e5e5;
  z-index:10;
}
.nav-inner{
  max-width:1200px;
  margin:auto;
  padding:.8rem 1rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  background:var(--yellow);
  width:42px;
  height:42px;
  border-radius:50%;
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:center;
}
nav a{
  margin-left:1.2rem;
  text-decoration:none;
  color:#111;
  font-weight:600;
}

.hero{
  height:56vh;
  background:url('https://images.unsplash.com/photo-1544620347-c4fd4a3d5957?q=80&w=1600&auto=format&fit=crop') center/cover no-repeat;
  position:relative;
}
.hero-overlay{
  background:rgba(0,0,0,.35);
  height:100%;
  display:flex;
  align-items:center;
}
.hero-card{
  background:var(--yellow);
  padding:2rem;
  margin-left:8%;
  max-width:420px;
  border-radius:12px;
}
.hero-card h1{
  margin:.5rem 0;
  font-size:2rem;
}
.hero-card p{
  margin:.5rem 0 1rem;
}
.tag{
  font-size:.8rem;
  font-weight:800;
}
.cta{
  display:inline-block;
  background:#fff;
  padding:.6rem 1rem;
  border-radius:8px;
  font-weight:800;
  color:#111;
  text-decoration:none;
}

.searchbox{
  max-width:1000px;
  margin:-2rem auto 2rem;
  background:#fff;
  border-radius:12px;
  padding:1rem;
  display:flex;
  gap:.5rem;
  box-shadow:0 10px 30px rgba(0,0,0,.15);
}
.searchbox input{
  flex:1;
  padding:.7rem;
  border-radius:8px;
  border:1px solid #ccc;
}
.swap{
  display:flex;
  align-items:center;
  padding:0 .5rem;
  font-size:1.2rem;
}
.searchbox button{
  background:var(--yellow);
  border:none;
  border-radius:8px;
  padding:.7rem 1.2rem;
  font-weight:800;
  cursor:pointer;
}

.actions{
  max-width:1000px;
  margin:2rem auto;
  padding:0 1rem;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1rem;
}
.action-card{
  border:1px solid #e5e5e5;
  border-radius:12px;
  padding:1.2rem;
  cursor:pointer;
  transition:.15s;
}
.action-card:hover{
  background:#fafafa;
  transform:translateY(-2px);
}
.action-card strong{
  display:block;
  font-size:1.1rem;
}
.action-card span{
  color:var(--gray);
}

.footer{
  border-top:1px solid #e5e5e5;
  padding:1.5rem 1rem;
  font-size:.85rem;
  color:#555;
  max-width:1000px;
  margin:2rem auto 0;
}