/* login.css */

body {
  font-family: var(--fuente-principal);
  background-color: var(--color-fondo);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 1rem;
  box-sizing: border-box;
}

/* ── Caja principal ── */
.login-box {
  background-color: var(--color-fondo-secciones);
  border: 1px solid var(--color-borde);
  border-top: 3px solid var(--color-primario);
  padding: clamp(1.5rem, 6vw, 2.5rem);
  border-radius: calc(var(--radio-borde) * 2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
  width: clamp(280px, 80%, 360px);
  box-sizing: border-box;
}

/* ── Logo ── */
.login-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.login-logo img {
  height: 52px;
  width: auto;
}

/* ── Título ── */
.login-box h1 {
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  color: var(--color-texto-oscuro);
  text-align: center;
  margin: 0 0 1.5rem 0;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ── Grupos de campos ── */
.login-box .form-group {
  margin-bottom: 1rem;
}
.login-box .form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  color: var(--color-texto-oscuro);
  opacity: 0.7;
}

/* ── Inputs ── */
.login-box .form-group input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 0.95rem;
  background-color: var(--color-fondo-subsecciones);
  color: var(--color-texto-oscuro);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio-borde);
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.login-box .form-group input::placeholder {
  color: var(--color-texto-oscuro);
  opacity: 0.35;
}
.login-box .form-group input:focus {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px var(--color-primario-alfa-12);
  outline: none;
}

/* ── Mensaje de alerta ── */
.alerta-formulario {
  font-size: 0.8rem;
  margin: 0.4rem 0 0 0;
  min-height: 1.1em;
  color: var(--color-peligro);
}

/* ── Botón ── */
.login-box button {
  display: block;
  width: 100%;
  padding: 0.7rem 1rem;
  margin-top: 1.25rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background-color: var(--color-primario);
  color: #1a1a1a;
  border: none;
  border-radius: var(--radio-borde);
  cursor: pointer;
  transition: background-color 0.2s, transform 0.15s, box-shadow 0.2s;
}
.login-box button:hover {
  background-color: var(--color-boton-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-primario-alfa-25);
}
.login-box button:active {
  transform: translateY(0);
  box-shadow: none;
}

@media (max-width: 400px) {
  .login-box {
    width: 100%;
  }
}