/* =============================================
   Página de registro — Estilos del formulario
   ============================================= */

.page-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  padding: 2rem 0;
}

.page-header__inner {
  text-align: center;
}

.page-header .back-link {
  display: inline-block;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  font-size: 0.9rem;
}

.page-header .back-link:hover {
  color: var(--color-white);
}

.page-header__title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.page-header__subtitle {
  opacity: 0.9;
  font-size: 1rem;
}

.registro-main {
  padding: 2.5rem 0 3.5rem;
}

.registro-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: start;
}

/* ---------- Datos bancarios ---------- */
.bank-info {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--color-secondary);
  position: sticky;
  top: 1.5rem;
}

.bank-info__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
}

.bank-info__note {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.bank-info__list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.bank-info__item dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  margin-bottom: 0.15rem;
}

.bank-info__item dd {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-dark);
  word-break: break-word;
}

.bank-info__amount {
  color: var(--color-secondary);
  font-size: 1.25rem !important;
}

/* ---------- Formulario ---------- */
.registro-form {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.form-section {
  border: none;
  padding: 0;
  margin: 0 0 2rem;
}

.form-section__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 2px solid #e2e8f0;
  width: 100%;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
}

.required {
  color: #dc2626;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
  padding: 0.65rem 0.85rem;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-dark);
  background: var(--color-white);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: #dc2626;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.file-input {
  padding: 0.5rem;
  font-size: 0.85rem;
  border: 1px dashed #cbd5e1;
  border-radius: var(--radius);
  background: var(--color-light);
  cursor: pointer;
}

.file-input:hover {
  border-color: var(--color-primary);
}

.file-preview {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
  background: var(--color-light);
  border-radius: var(--radius);
}

.file-preview img {
  max-height: 60px;
  max-width: 120px;
  object-fit: contain;
  border-radius: 4px;
  border: 1px solid #e2e8f0;
}

.file-preview__remove {
  background: none;
  border: none;
  color: #dc2626;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
}

.file-preview__remove:hover {
  color: #b91c1c;
}

/* ---------- Acciones ---------- */
.form-actions {
  text-align: center;
  padding-top: 0.5rem;
}

.btn--submit {
  padding: 0.85rem 2.5rem;
  font-size: 1.05rem;
  border: none;
  cursor: pointer;
  min-width: 240px;
}

.btn--submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-actions__note {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.form-message {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.form-message--success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.form-message--error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .registro-layout {
    grid-template-columns: 1fr;
  }

  .bank-info {
    position: static;
    order: -1;
  }
}

@media (max-width: 600px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .registro-form {
    padding: 1.25rem;
  }
}