/* ==========================================================================
   COMPONENTS.CSS
   Componentes reutilizables: logo, nav, botones, cards, formulario,
   estadísticas, badges, botón flotante de WhatsApp.
   ========================================================================== */

/* --- Logo --- */
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: #ffffff;
}

.brand__mark {
  width: 38px;
  height: 38px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.brand__text-sub {
  display: block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.brand__logo {
  display: block;
  width: 170px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.site-header .brand {
  flex-shrink: 0;
}

.site-header .brand__logo {
  width: calc((var(--header-height) - 12px) * 1766 / 653);
  max-height: calc(var(--header-height) - 12px);
}

.site-footer .brand__logo {
  width: 260px;
}

/* --- Navegación principal --- */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-menu__list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--fs-sm);
  padding: 0.5rem 0.25rem;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

.nav-link.is-active {
  color: var(--color-primary-light);
}

/* --- Dropdown "Servicios" --- */
.nav-item--dropdown {
  position: relative;
}

.nav-item__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-item__toggle .icon-chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item--dropdown:hover .icon-chevron,
.nav-item--dropdown:focus-within .icon-chevron {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 300px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.6rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: var(--z-dropdown);
}

.nav-item--dropdown:hover .dropdown-menu,
.nav-item--dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--fs-sm);
}

.dropdown-menu a:hover,
.dropdown-menu a:focus-visible {
  background: var(--color-surface-alt);
  color: var(--color-primary-light);
}

.dropdown-menu svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- Botón hamburguesa (móvil) --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  z-index: var(--z-mobile-menu);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #ffffff;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: 0.01em;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn--primary {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  transform: translateY(-2px);
  color: #ffffff;
  box-shadow: 0 0 40px rgba(196, 30, 30, 0.45);
}

.btn--outline {
  background: transparent;
  color: #ffffff;
  border: 1px solid var(--color-border-strong);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border-color: var(--color-primary-light);
}

.btn--block {
  width: 100%;
}

/* --- Cards de servicios --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(196, 30, 30, 0.4);
  box-shadow: var(--shadow-lg);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: rgba(196, 30, 30, 0.12);
  color: var(--color-primary-light);
  margin-bottom: var(--space-sm);
}

.service-card__icon svg {
  width: 28px;
  height: 28px;
}

.service-card h3 {
  margin-bottom: 0.6rem;
}

.service-card p {
  font-size: var(--fs-sm);
  flex-grow: 1;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: var(--space-sm);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-primary-light);
}

.service-card__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.service-card__link:hover svg {
  transform: translateX(4px);
}

/* --- Lista de características (check list) --- */
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  color: var(--color-text);
  font-size: var(--fs-sm);
}

.feature-list svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary-light);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Estadísticas --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  text-align: center;
}

.stat-card {
  padding: var(--space-lg) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
}

.stat-card__value {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-primary-light);
  display: block;
}

.stat-card__value.is-placeholder {
  color: var(--color-text-muted);
  font-size: var(--fs-md);
  font-weight: 600;
}

.stat-card__label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
  display: block;
}

/* --- Badges (placeholders de certificaciones, etiquetas) --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  background: rgba(196, 30, 30, 0.12);
  color: var(--color-primary-light);
  border: 1px solid rgba(196, 30, 30, 0.25);
}

.badge--muted {
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.cert-card {
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  text-align: center;
  background: rgba(255, 255, 255, 0.02);
}

.cert-card svg {
  width: 40px;
  height: 40px;
  margin-inline: auto;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.cert-card h4 {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  font-weight: 600;
}

.cert-card span {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* --- Clientes --- */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-md);
}

.client-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
}

.client-card__logo {
  display: grid;
  place-items: center;
  height: 160px;
  padding: 20px;
  background: #ffffff;
}

.client-card__logo--gray {
  background: #999999;
}

.client-card__logo img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
}

.client-card__info {
  padding: 20px 16px;
  text-align: center;
}

.client-card__info h3 {
  font-size: var(--fs-sm);
  line-height: 1.45;
  margin-bottom: 6px;
  overflow-wrap: anywhere;
}

.client-card__info p {
  font-size: var(--fs-xs);
}

.clients-additional {
  margin-top: var(--space-lg);
  text-align: center;
}

.clients-additional strong {
  color: var(--color-text);
}

/* --- Formulario de contacto --- */
.form-group {
  margin-bottom: var(--space-sm);
}

.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(196, 30, 30, 0.25);
}

textarea.form-control {
  resize: vertical;
  min-height: 130px;
}

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

.form-note {
  font-size: var(--fs-xs);
  margin-top: var(--space-sm);
}

/* --- Info de contacto --- */
.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.contact-info-item__icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: rgba(196, 30, 30, 0.12);
  color: var(--color-primary-light);
}

.contact-info-item__icon svg {
  width: 22px;
  height: 22px;
}

.contact-info-item h4 {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.contact-info-item p,
.contact-info-item a {
  color: #ffffff;
  font-size: var(--fs-md);
}

/* --- Redes sociales --- */
.social-links {
  display: flex;
  gap: 0.6rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.social-links a:hover {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.social-links svg {
  width: 18px;
  height: 18px;
}

/* --- Footer: columnas de enlaces --- */
.footer-col h4 {
  color: #ffffff;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

.footer-col a:hover {
  color: var(--color-primary-light);
}

/* --- Botón flotante de WhatsApp --- */
.whatsapp-float {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  z-index: var(--z-whatsapp);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-success);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast);
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: scale(1.08);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  color: #ffffff;
}

.whatsapp-float__ping {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--color-success);
  opacity: 0.55;
  animation: whatsapp-pulse 2.2s ease-out infinite;
}

/* --- Botón "volver arriba" --- */
.back-to-top {
  position: fixed;
  right: var(--space-md);
  bottom: 96px;
  z-index: var(--z-whatsapp);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  color: var(--color-text);
}