:root{
  --blue:#1f6fb2;
  --blue-dark:#0b3c6f;
  --bg:#f1f5f9;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --accent:#f97316;
}

*{box-sizing:border-box}

body{
  margin:0;
  min-height:100vh;
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  background:
    radial-gradient(circle at 20% 10%, rgba(31,111,178,.18), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(11,60,111,.22), transparent 45%),
    var(--bg);
  display:flex;
  align-items:center;
  justify-content:center;
}

.page-header{
  position:fixed;
  top:0;left:0;right:0;
  background:linear-gradient(135deg,var(--blue),var(--blue-dark));
  color:#fff;
  padding:14px 22px;
  display:flex;
  align-items:center;
  gap:12px;
  z-index:10;
  box-shadow:0 4px 14px rgba(0,0,0,.2);
}

.page-header img{height:34px}
.page-header span{font-weight:800}

.login-box{
  background:var(--card);
  padding:34px 36px 32px;
  width:100%;
  max-width:400px;
  border-radius:16px;
  box-shadow:0 20px 40px rgba(0,0,0,.18);
  text-align:center;
  margin-top:80px;
}

.logo{
  display:block;
  margin:0 auto 14px;
  max-width:160px;
}

h1{
  font-size:22px;
  margin:0 0 4px;
  color:var(--text);
  font-weight:900;
}

p{
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}

input{
  width:100%;
  padding:12px 13px;
  font-size:14px;
  margin-bottom:14px;
  border:1px solid #cbd5e1;
  border-radius:8px;
}

button{
  width:100%;
  padding:13px;
  border-radius:999px;
  border:none;
  background:linear-gradient(135deg,var(--accent),#fb923c);
  color:#fff;
  font-weight:800;
  cursor:pointer;
}

button:hover{
  transform:translateY(-1px);
  box-shadow:0 8px 18px rgba(249,115,22,.4);
}

.error{
  color:#dc2626;
  font-size:13px;
  margin-top:14px;
  display:none;
  font-weight:600;
}

.footer{
  margin-top:22px;
  font-size:12px;
  color:#94a3b8;
}