body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Inter", sans-serif;
  background: radial-gradient(circle at 20% 20%, #1e3a8a 0%, #0f172a 40%, #020617 100%);
}

.login-container form {
  width: 360px;
  padding: 36px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.32);
  backdrop-filter: blur(20px) saturate(150%);
}

.login-brand {
  margin-bottom: 18px;
}

.login-brand h1 {
  margin: 0;
  font-size: 28px;
  color: #f8fafc;
}

.login-brand p {
  margin: 6px 0 0;
  color: #cbd5e1;
  font-size: 13px;
}

.input-group {
  margin-bottom: 14px;
}

.input-group label {
  display: block;
  margin-bottom: 6px;
  color: #e2e8f0;
  font-size: 13px;
  font-weight: 500;
}

.input-group input {
  box-sizing: border-box;
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.6);
  border-radius: 10px;
  padding: 11px 12px;
  outline: none;
  font-size: 14px;
  color: #0f172a;
  background: rgba(255, 255, 255, 0.9);
}

.input-group input:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.btn-login {
  width: 100%;
  margin-top: 8px;
  border: 0;
  border-radius: 10px;
  padding: 12px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(90deg, #2563eb, #1d4ed8);
  cursor: pointer;
}

.btn-login:hover {
  background: linear-gradient(90deg, #1d4ed8, #1e40af);
}

.alert {
  border-radius: 10px;
  padding: 10px;
  font-size: 13px;
  margin: 0 0 14px;
}

.alert-error {
  background: rgba(254, 226, 226, 0.95);
  color: #991b1b;
}