/* Paleta institucional TemFi */
:root {
  --midnight-blue: #001672;
  --cosmic-blue: #005EFF;
  --violet-blue: #5B36FF;
  --gray-blue: #BCC9DD;
  --clear: #FFFFFF;
}

/* Fondo general */
body {
  margin: 0;
  height: 100vh;
  font-family: 'Montserrat', sans-serif;
  background-image:
    url('img/pattern-temfi.svg'),
    linear-gradient(135deg, var(--midnight-blue), var(--cosmic-blue), var(--violet-blue));
  background-size: 300px 300px, 300% 300%;
  background-repeat: repeat, no-repeat;
  background-attachment: fixed, fixed;
  background-blend-mode: overlay;
  animation: gradientMove 10s ease infinite;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* Animación del fondo */
@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Contenedor principal */
.container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

/* Contenido centrado (logo + card) */
.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translateY(-40px);
  gap: 25px;
}

/* Logo principal */
.logo {
  width: 240px;
  margin-bottom: 5px;
  animation: fadeIn 1.5s ease;
  filter: drop-shadow(0 0 15px rgba(91, 54, 255, 0.5)); /* halo sutil */
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tarjeta del formulario */
.login-card {
  background: var(--clear);
  border-radius: 20px;
  padding: 40px 35px;
  width: 340px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
}

/* Título */
h1 {
  color: var(--midnight-blue);
  font-weight: 700;
  font-size: 1.8rem;
  margin-bottom: 25px;
}

/* Campos de entrada */
input {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border-radius: 10px;
  border: 1px solid var(--gray-blue);
  background-color: var(--gray-blue);
  font-size: 1rem;
  outline: none;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

input:focus {
  background-color: var(--clear);
  border-color: var(--violet-blue);
  box-shadow: 0 0 6px rgba(91, 54, 255, 0.3);
}

/* Botón principal */
button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(270deg, var(--cosmic-blue), var(--violet-blue), var(--cosmic-blue));
  background-size: 200% 200%;
  color: var(--clear);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.4s ease;
  box-sizing: border-box;
}

/* Efecto de brillo dinámico */
button:hover {
  animation: buttonShine 2.5s linear infinite;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

@keyframes buttonShine {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Footer institucional */
footer {
  width: 100%;
  text-align: center;
  padding: 15px 10px;
  color: var(--clear);
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.25);
  position: fixed;
  bottom: 0;
  left: 0;
  letter-spacing: 0.3px;
}

footer a {
  color: var(--clear);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Responsivo */
@media (max-width: 400px) {
  .login-card {
    width: 90%;
    padding: 25px;
  }
  .logo {
    width: 180px;
  }
}