/* ==========================================================================
   components.css — Header, navegación, botones y tarjetas reutilizables
   ========================================================================== */

/* ---- Header ---- */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 50;
  background: rgb(255 255 255 / 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm), var(--shadow-md);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand__img {
  height: 2rem;
  width: auto;
}

.site-footer .brand__img {
  height: 2.125rem;
}

.site-nav__links {
  display: none;
}

@media (min-width: 768px) {
  .site-nav__links {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-accent);
}

.site-nav__links .nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.375rem;
  height: 2px;
  border-radius: 1px;
  background: var(--color-accent);
}

/* ---- Selector de idioma ---- */
.lang-switch {
  display: flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg);
}

.lang-switch__btn {
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-switch__btn:hover {
  color: var(--color-primary);
}

.lang-switch__btn[aria-pressed="true"] {
  background: var(--color-primary);
  color: #fff;
}

/* ---- Botón del menú móvil ---- */
.menu-toggle {
  display: inline-flex;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--color-bg-alt);
}

.menu-toggle .icon {
  stroke-width: 2;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__open,
.menu-toggle[aria-expanded="false"] .menu-toggle__close {
  display: none;
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

/* ---- Menú móvil ---- */
.mobile-menu {
  display: none;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.mobile-menu.is-open {
  display: block;
}

/* Sin JavaScript el menú se muestra siempre para no perder la navegación */
.no-js .mobile-menu {
  display: block;
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem 1rem 1rem;
}

.mobile-menu__list .nav-link {
  display: block;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-md);
}

.mobile-menu__list .nav-link:hover,
.mobile-menu__list .nav-link.is-active {
  background: var(--color-bg-alt);
}

@media (min-width: 768px) {
  .mobile-menu,
  .no-js .mobile-menu {
    display: none;
  }
}

/* ---- Botones ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-align: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn:active {
  transform: translateY(1px);
}

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

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

.btn--ghost {
  border: 1px solid rgb(255 255 255 / 0.3);
  color: #fff;
}

.btn--ghost:hover {
  border-color: #fff;
}

/* ---- Cabecera de sección ---- */
.section-header {
  max-width: 42rem;
  margin-inline: auto;
  margin-bottom: 4rem;
  text-align: center;
}

.section-header__kicker {
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-header__title {
  margin-bottom: 1rem;
  font-size: var(--text-h2);
  font-weight: 700;
}

.section-header__subtitle {
  color: var(--color-text-muted);
}

/* ---- Caja de icono ---- */
.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  margin-bottom: 1.5rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.icon-box .icon {
  width: 1.75rem;
  height: 1.75rem;
}

.icon-box--center {
  margin-inline: auto;
  margin-bottom: 1rem;
}

/* ---- Tarjeta de servicio ---- */
.service-card {
  padding: 2rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow: var(--shadow-lg);
}

.service-card__title {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
}

.service-card__desc {
  color: var(--color-text-muted);
}

/* ---- Tarjeta de proyecto ---- */
.project-card {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: linear-gradient(160deg, #e2e8f0, #cbd5e1);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.project-card:hover .project-card__img {
  transform: scale(1.04);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
  background: linear-gradient(to top, rgb(15 23 42 / 0.85) 0%, rgb(15 23 42 / 0.35) 45%, transparent 70%);
}

.project-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #fff;
}

.project-card__desc {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* ---- Tarjeta de contacto ---- */
.contact-card {
  text-align: center;
}

.contact-card__label {
  margin-bottom: 0.25rem;
  font-size: 1rem;
  font-weight: 600;
}

.contact-card__value {
  color: var(--color-text-muted);
  overflow-wrap: anywhere;
}

.contact-card__value a {
  transition: color var(--transition-fast);
}

.contact-card__value a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}