/* ==========================================================================
   Sidebar de escritorio (≥1024px)
   ========================================================================== */

.site-sidebar {
  display: none;
}

@media (min-width: 1024px) {
  .site-sidebar {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sidebar-width);
    height: 100%;
    background-color: var(--color-chrome-bg);
    border-right: 1px solid var(--color-chrome-border);
    padding: var(--space-5) var(--space-4);
    z-index: var(--z-header);
    overflow-y: auto;
  }
}

.site-sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-on-dark);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-7);
}

.site-sidebar__logo img {
  height: 28px;
  width: auto;
}

.site-sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.site-sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-chrome-text);
  text-decoration: none;
  font-size: var(--text-body-sm);
  padding: var(--space-3);
  border-left: 2px solid transparent;
  transition: color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.site-sidebar__link svg {
  flex: none;
  width: 18px;
  height: 18px;
}

.site-sidebar__link:hover {
  color: var(--color-chrome-text-hover);
  background-color: rgba(255, 255, 255, 0.05);
}

.site-sidebar__link[aria-current='page'] {
  color: var(--color-chrome-text-hover);
  background-color: var(--color-accent-tint);
  background-color: rgba(15, 98, 254, 0.16);
  border-left-color: var(--color-accent);
}

.site-sidebar__cta {
  margin-top: auto;
  padding-top: var(--space-5);
}

.site-sidebar__cta-card {
  background-color: rgba(255, 255, 255, 0.05);
  padding: var(--space-4);
}

.site-sidebar__cta-title {
  color: var(--color-text-on-dark);
  font-size: var(--text-body-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.site-sidebar__cta-text {
  color: var(--color-text-on-dark-secondary);
  font-size: var(--text-caption);
  margin-bottom: var(--space-3);
}

.site-sidebar__cta-card .btn {
  width: 100%;
}

/* ==========================================================================
   Contenedor de página — se desplaza a la derecha del sidebar en desktop
   ========================================================================== */

.page-shell {
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-shell {
    margin-left: var(--sidebar-width);
  }
}

/* ==========================================================================
   Header móvil / tablet (<1024px) — el sidebar lo reemplaza en desktop
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-chrome-bg);
  border-bottom: 1px solid var(--color-chrome-border);
  height: var(--header-height);
}

@media (min-width: 1024px) {
  .site-header {
    display: none;
  }
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-on-dark);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.site-header__logo img {
  height: 28px;
  width: auto;
}

.site-header__menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-chrome-border);
  color: var(--color-text-on-dark);
  cursor: pointer;
}

/* Fallback de navegación cuando JavaScript está deshabilitado (dentro del <noscript>) */
.site-nav__link {
  display: block;
  color: var(--color-chrome-text);
  text-decoration: none;
  font-size: var(--text-body-sm);
  padding: var(--space-2) 0;
}

.site-nav__link:hover {
  color: var(--color-chrome-text-hover);
}

/* ==========================================================================
   Drawer (sidebar off-canvas / menú móvil, <1024px)
   ========================================================================== */

.site-drawer {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(320px, 85vw);
  height: 100%;
  background-color: var(--color-chrome-bg);
  z-index: var(--z-drawer);
  transform: translateX(100%);
  transition: transform var(--duration-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
  border-left: 1px solid var(--color-chrome-border);
}

.site-drawer.is-open {
  transform: translateX(0);
}

.site-drawer__header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-5);
}

.site-drawer__close {
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-chrome-border);
  color: var(--color-text-on-dark);
  cursor: pointer;
}

.site-drawer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.site-drawer__link {
  color: var(--color-chrome-text);
  text-decoration: none;
  font-size: var(--text-h4);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-chrome-border);
}

.site-drawer__link:hover,
.site-drawer__link[aria-current='page'] {
  color: var(--color-chrome-text-hover);
}

.site-drawer__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(22, 22, 22, 0.6);
  z-index: 150;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out);
}

.site-drawer__backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

@media (min-width: 1024px) {
  .site-drawer,
  .site-drawer__backdrop {
    display: none;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-chrome-bg);
  color: var(--color-chrome-text);
  padding-block: var(--space-6);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 600px) {
  .site-footer__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.site-footer__heading {
  color: var(--color-text-on-dark);
  font-size: var(--text-body-sm);
  font-weight: 600;
  letter-spacing: 0.16px;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.site-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__list a {
  color: var(--color-chrome-text);
  text-decoration: none;
  font-size: var(--text-body-sm);
}

.site-footer__list a:hover {
  color: var(--color-chrome-text-hover);
}

.site-footer__bottom {
  border-top: 1px solid var(--color-chrome-border);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  font-size: var(--text-caption);
  color: var(--color-text-on-dark-secondary);
}

/* ==========================================================================
   Botón de WhatsApp flotante
   ========================================================================== */

.whatsapp-fab {
  position: fixed;
  right: var(--space-4);
  bottom: var(--space-4);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-circle);
  background-color: var(--color-whatsapp);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-float);
  z-index: var(--z-whatsapp);
  transition: background-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.whatsapp-fab:hover {
  background-color: var(--color-whatsapp-hover);
  transform: scale(1.05);
}

.whatsapp-fab svg {
  width: 28px;
  height: 28px;
  fill: #ffffff;
}

/* ==========================================================================
   Botones
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  min-height: 44px;
  border-radius: var(--radius-none);
  border: 1px solid transparent;
  font-size: var(--text-body);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text-on-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
}

.btn--primary:active {
  background-color: var(--color-accent-active);
}

.btn--secondary {
  background-color: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--secondary:hover {
  background-color: var(--color-accent-tint);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==========================================================================
   Tarjetas
   ========================================================================== */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-none);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--duration-fast) var(--ease-out);
}

a.card:hover {
  background-color: var(--color-surface-hover);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-circle);
  background-color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

.card__icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-text-on-accent);
}

.card__title {
  font-size: var(--text-h4);
  font-weight: 600;
  color: var(--color-text);
}

.card__text {
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

.card__link {
  margin-top: auto;
  color: var(--color-accent);
  font-size: var(--text-body-sm);
  font-weight: 600;
}

.card-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Placeholder de imagen (sin fotos reales todavía)
   ========================================================================== */

.image-placeholder {
  border: 1px dashed var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text-tertiary);
  font-size: var(--text-body-sm);
  padding: var(--space-6) var(--space-4);
  text-align: center;
}

/* ==========================================================================
   Código serializado (elemento temático, no decorativo)
   ========================================================================== */

.serial-code {
  font-family: var(--font-mono);
  font-size: var(--text-h4);
  letter-spacing: 0.16px;
  background-color: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  display: inline-block;
}

/* ==========================================================================
   Formulario
   ========================================================================== */

.form-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 var(--space-6) 0;
}

.form-fieldset__legend {
  font-size: var(--text-h4);
  font-weight: 600;
  padding: 0 0 var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  width: 100%;
  margin-bottom: var(--space-4);
}

.form-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .form-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-field__label {
  font-size: var(--text-body-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-field__required {
  color: var(--color-text-secondary);
  font-weight: 400;
}

.form-field__input,
.form-field__select,
.form-field__textarea {
  background-color: var(--color-surface);
  border: none;
  border-bottom: 2px solid var(--color-border);
  padding: var(--space-3);
  min-height: 44px;
  border-radius: var(--radius-none);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.form-field__textarea {
  min-height: 120px;
  resize: vertical;
}

.form-field__input:hover,
.form-field__select:hover,
.form-field__textarea:hover {
  border-bottom-color: var(--color-text-secondary);
}

.form-field__input:focus,
.form-field__select:focus,
.form-field__textarea:focus {
  border-bottom-color: var(--color-accent);
}

.form-field--error .form-field__input,
.form-field--error .form-field__select,
.form-field--error .form-field__textarea {
  border-bottom-color: var(--color-error);
}

.form-field__error {
  font-size: var(--text-caption);
  color: var(--color-error);
  min-height: 1em;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.form-checkbox input {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 2px;
}

.form-checkbox label {
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
}

.form-help {
  font-size: var(--text-body-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-3);
}

.form-status {
  margin-top: var(--space-3);
  font-size: var(--text-body-sm);
  padding: var(--space-3);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status--error {
  background-color: #fff1f1;
  color: var(--color-error);
}

.form-status--success {
  background-color: #defbe6;
  color: var(--color-success);
}

/* ==========================================================================
   Tags
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background-color: var(--color-accent-tint);
  color: var(--color-accent);
  font-size: var(--text-caption);
  font-weight: 600;
}