:root{
  --bg:#f6f8fc;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --accent:#2563eb;

  --radius:18px;
  --shadow:0 16px 40px rgba(15,23,42,.10);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(800px 500px at 20% 0%, rgba(37,99,235,.10), transparent 55%),
    radial-gradient(700px 500px at 80% 10%, rgba(6,182,212,.10), transparent 55%),
    var(--bg);
  display:grid;
  place-items:center;
  color:var(--text);
}

.login-wrap{
  width:100%;
  display:grid;
  place-items:center;
}

.login-card{
  width:100%;
  max-width:380px;
  padding:24px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}

.login-card h1{
  margin:0 0 18px;
  text-align:center;
  font-size:26px;
  font-weight:800;
  letter-spacing:-0.02em;
}

.field{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-bottom:14px;
}

label{
  font-size:13px;
  font-weight:700;
  color:var(--muted);
}

input{
  padding:12px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  font-size:14px;
  font-weight:600;
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}

input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(37,99,235,.12);
}

.btn{
  width:100%;
  margin-top:8px;
  padding:12px 14px;
  border-radius:14px;
  border:none;
  font-size:15px;
  font-weight:800;
  color:#fff;
  cursor:pointer;
  background:linear-gradient(90deg, #2563eb, #06b6d4);
  box-shadow:0 14px 30px rgba(37,99,235,.25);
  transition:transform .15s ease, box-shadow .15s ease;
}

.btn:hover{
  transform:translateY(-1px);
  box-shadow:0 18px 36px rgba(37,99,235,.30);
}