:root {
  --primary: #2563eb;
  --dark: #1e293b;
  --bg: #f8fafc;
}

body {
  background: linear-gradient(135deg, var(--dark), var(--primary));
  font-family: system-ui, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.login-card {
  background: white;
  padding: 30px;
  border-radius: 14px;
  width: 340px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
}

.logo {
  width: 140px;
  margin-bottom: 15px;
}

input {
  width: 100%;
  padding: 12px;
  margin: 8px 0;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
}

button {
  width: 100%;
  padding: 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}

button.secondary {
  background: var(--dark);
  margin-top: 5px;
}

.link {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--primary);
}