.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (max-width: 640px) {
  .container {
    padding-inline: var(--space-4);
  }
}

.section {
  position: relative;
  padding-block: var(--space-16);
}

@media (max-width: 900px) {
  .section {
    padding-block: var(--space-10);
  }
}

.section-header {
  max-width: 680px;
  margin-bottom: var(--space-10);
}

.section-header.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
}

/* Grid helpers */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  position: relative;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding-block: var(--space-2);
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--color-text);
}

.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
}

/* En la fila horizontal de escritorio, letra un poco más chica y sin salto de línea para que entren los 6 ítems + botones */
@media (min-width: 901px) {
  .nav-links > li > a,
  .nav-links .nav-item-head > a {
    font-size: var(--fs-xs);
    white-space: nowrap;
  }
}

/* Mega-menu dropdowns */
.nav-item {
  position: relative;
}

@media (min-width: 901px) {
  .nav-item.has-dropdown::after {
    content: "";
    position: absolute;
    top: 100%;
    left: -40px;
    right: -40px;
    height: var(--space-3);
  }
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + var(--space-3));
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 220px;
  padding: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 110;
}

@media (min-width: 901px) {
  .nav-item.has-dropdown:hover .nav-dropdown,
  .nav-item.has-dropdown:focus-within .nav-dropdown,
  .nav-item.has-dropdown.is-open .nav-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
  }
}

.nav-dropdown a {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.nav-dropdown a:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.nav-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

@media (min-width: 901px) {
  .nav-item-head {
    display: contents;
  }
}

.nav-item-toggle {
  display: none;
}

@media (max-width: 900px) {
  .nav-item-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
  }

  .nav-item-toggle svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
  }

  .nav-item.has-dropdown.is-open .nav-item-toggle svg {
    transform: rotate(180deg);
  }

  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    box-shadow: none;
    border: none;
    background: transparent;
    padding-left: var(--space-4);
    margin-top: 0;
    border-left: 2px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .nav-item.has-dropdown.is-open .nav-dropdown {
    max-height: 480px;
    padding-top: var(--space-1);
    margin-top: var(--space-2);
  }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 900px) {
  .nav-desktop {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-elevated);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6);
    gap: var(--space-6);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .nav-desktop.is-open {
    transform: translateX(0);
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-5);
  }

  .nav-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-12) var(--space-8);
  background: var(--color-bg-elevated);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-8);
  padding-bottom: var(--space-10);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h4 {
  font-size: var(--fs-sm);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-text-faint);
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

.social-row {
  display: flex;
  gap: var(--space-3);
}

.social-row a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.social-row a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.social-row svg {
  width: 16px;
  height: 16px;
}

/* Page hero (inner pages) */
.page-hero {
  padding-top: calc(var(--header-height) + var(--space-12));
  padding-bottom: var(--space-10);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-5);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.page-title {
  font-size: var(--fs-3xl);
  max-width: 20ch;
  margin-bottom: var(--space-5);
}

@media (max-width: 640px) {
  .page-title {
    font-size: var(--fs-2xl);
  }
}

.page-lead {
  font-size: var(--fs-md);
  color: var(--color-text-muted);
  max-width: 65ch;
}

/* Two-column split used on Nosotros / Servicios detail pages */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: start;
}

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

.split-layout p {
  color: var(--color-text-muted);
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  border-left: 2px solid var(--color-border);
  padding-left: var(--space-6);
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-6) - 5px);
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient-brand);
  box-shadow: 0 0 0 4px var(--color-bg);
}

.timeline-year {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

.timeline-item p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}