/* === ESTÉTICA INSTITUCIONAL === */
:root {
  --color-primario: #003366;
  --color-secundario: #0055a5;
  --color-acento: #e0f0ff;
  --color-error: #c0392b;
  --color-exito: #27ae60;
  --color-texto: #222;
  --fondo: #f9fbfd;
  --sombra: 0 2px 6px rgba(0,0,0,0.08);
  --borde: 1px solid #dde4ea;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--fondo);
  color: var(--color-texto);
  margin: 0;
  padding: 0;
}

.header {
  background: var(--color-primario);
  color: white;
  padding: 1.5rem;
  text-align: center;
}

.logo {
  height: 50px;
  margin-bottom: 0.5rem;
}

.form-wrapper {
  max-width: 960px;
  margin: auto;
  padding: 2rem;
  display: grid;
  gap: 2rem;
}

.card {
  background: white;
  border: var(--borde);
  border-radius: 8px;
  box-shadow: var(--sombra);
  padding: 2rem;
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.form-section h2 {
  color: var(--color-primario);
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.form-group label {
  font-weight: 500;
  margin-bottom: 0.4rem;
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="file"],
input[type="tel"],
select {
  padding: 0.6rem;
  border: var(--borde);
  border-radius: 5px;
  transition: border-color 0.2s ease;
  width: 100%;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--color-secundario);
}

input[readonly] {
  background: #f1f4f8;
  color: #555;
  font-style: italic;
}

/* === BOTONES === */
.btn {
  background: var(--color-secundario);
  color: white;
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #003f7f;
}

.btn:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.form-actions {
  text-align: center;
  margin-top: 2rem;
}

/* === MEDIOS DE PAGO === */
.pago-detalle {
  background: #f5f9fc;
  padding: 1rem;
  border-left: 4px solid var(--color-secundario);
  margin-top: 1rem;
  border-radius: 6px;
  display: none;
}

.pago-activo {
  display: block;
}

/* === VALIDACIÓN === */
input:invalid {
  border-color: var(--color-error);
}

input:valid {
  border-color: var(--color-exito);
}

/* === RESPONSIVO === */
@media (max-width: 768px) {
  .form-wrapper {
    padding: 1rem;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .btn {
    width: 100%;
  }
}