:root{
  --bg:#eef3fb;
  --nav:#1f2d3d;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --border:#e2e8f0;
  --btn:#2563eb;
  --btn2:#1d4ed8;
}

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

.topbar{
  background:var(--nav);
  color:#fff;
  padding:14px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  position:sticky;
  top:0;
  z-index:10;
}
.brand{
  font-weight:800;
  letter-spacing:.5px;
}
.nav{
  display:flex;
  align-items:center;
  gap:18px;
}
.nav a{
  color:#fff;
  text-decoration:none;
  font-weight:600;
  opacity:.95;
}
.nav a:hover{opacity:1}
.nav .btn{
  background:var(--btn);
  padding:10px 14px;
  border-radius:999px;
}
.nav .btn:hover{background:var(--btn2)}

.page{
  padding:40px 16px;
  display:flex;
  justify-content:center;
}

.card{
  width:min(920px, 100%);
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:28px;
  box-shadow:0 14px 40px rgba(2,6,23,.08);
}

h1{
  margin:0 0 6px 0;
  font-size:40px;
  text-align:center;
}
.sub{
  text-align:center;
  margin:0 0 22px 0;
  color:var(--muted);
}

.form h2{
  margin:22px 0 12px 0;
  font-size:18px;
  color:#0b1220;
}

.grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:14px 16px;
}
@media (max-width: 760px){
  .grid{grid-template-columns:1fr}
}

.field label{
  display:block;
  font-weight:700;
  margin:0 0 6px 0;
}
.field input{
  width:100%;
  padding:12px 12px;
  border:1px solid #cbd5e1;
  border-radius:10px;
  outline:none;
  font-size:14px;
  background:#fff;
}
.field input:focus{
  border-color:#93c5fd;
  box-shadow:0 0 0 3px rgba(59,130,246,.15);
}
.field small{
  display:block;
  margin-top:6px;
  color:var(--muted);
}

.actions{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:20px;
  flex-wrap:wrap;
}
.submit{
  background:var(--btn);
  color:#fff;
  border:none;
  padding:12px 18px;
  border-radius:12px;
  font-weight:800;
  cursor:pointer;
}
.submit:hover{background:var(--btn2)}
.link{
  color:#1d4ed8;
  text-decoration:none;
  font-weight:700;
}
.link:hover{text-decoration:underline}

.msg{
  margin-top:14px;
  font-weight:700;
  color:#0b1220;
}

.footer{
  text-align:center;
  padding:22px 10px;
  color:var(--muted);
}