* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
body {
  background-color: #f7fafc;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.login-card {
  background: #ffffff;
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
}
.login-card h2 {
  color: #1b365d;
  margin-bottom: 24px;
  text-align: center;
  font-size: 24px;
}
.input-group {
  margin-bottom: 16px;
}
.input-group label {
  display: block;
  color: #4a5568;
  margin-bottom: 6px;
  font-size: 14px;
}
.input-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cbd5e0;
  border-radius: 4px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.input-group input:focus {
  border-color: #2c5282;
}
.btn-submit {
  width: 100%;
  background-color: #1b365d;
  color: #ffffff;
  padding: 12px;
  border: none;
  border-radius: 4px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}
.btn-submit:hover {
  background-color: #2c5282;
}
.erro-msg {
  color: #e53e3e;
  font-size: 13px;
  text-align: center;
  margin-top: 10px;
  display: none;
}