* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  min-height: 100vh;
  color: #1f2937;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
}

.login-header {
  text-align: center;
  margin-bottom: 24px;
}

.login-header h1 {
  margin: 0 0 8px;
  font-size: 1.8rem;
  color: #0f172a;
}

.login-header p {
  margin: 0;
  color: #64748b;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.campo {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.campo label {
  font-weight: 600;
  color: #1f2937;
}

.campo input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  font-size: 14px;
  background: #fff;
}

.campo input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.botao-entrar {
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  background: #0f172a;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.botao-entrar:hover {
  background: #1e293b;
}

.alerta-erro {
  background: #fee2e2;
  color: #991b1b;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
}

.erro-campo {
  color: #b91c1c;
  font-size: 12px;
}

.acoes-extras {
  text-align: center;
}

.acoes-extras a {
  color: #1d4ed8;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.acoes-extras a:hover {
  text-decoration: underline;
}