/* Layout: shell, container, section rhythm, sticky regions. */

.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

body.site-nav-open {
  overflow: hidden;
}

@media (min-width: 64rem) {
  body.site-nav-open {
    overflow: visible;
  }
}

.site-main {
  flex: 1;
  min-width: 0;
}

/* Width + horizontal padding — pair with components .container if both used */
.container {
  width: 100%;
  min-width: 0;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

@media (min-width: 48rem) {
  .container {
    padding-inline: var(--space-8);
  }
}

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

@media (min-width: 48rem) {
  .section {
    padding-block: var(--space-20);
  }
}

.section--tight {
  padding-block: var(--space-12);
}

/* Sticky glass header shell */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: var(--color-glass-fill);
  backdrop-filter: saturate(180%) blur(var(--blur-glass));
  -webkit-backdrop-filter: saturate(180%) blur(var(--blur-glass));
  transition:
    box-shadow var(--motion-duration) var(--ease-out),
    border-color var(--motion-duration) var(--ease-out),
    background-color var(--motion-duration) var(--ease-out);
}

.site-header--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset, 0 8px 32px var(--color-shadow);
  background: rgba(255, 255, 255, 0.82);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-4);
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

@media (min-width: 48rem) {
  .site-header__inner {
    padding-inline: var(--space-8);
  }
}

.site-header__logo {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  min-width: max-content;
  overflow: visible;
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  text-decoration: none;
  line-height: 0;
}

.site-header__logo .site-logo {
  display: block;
  height: 30px;
  width: auto;
  max-width: 132px;
  object-fit: contain;
  object-position: left center;
  flex-shrink: 0;
}

.site-header__logo .site-logo,
.site-footer__brand .footer-logo {
  image-rendering: auto;
  transform: translateZ(0);
}

@media (max-width: 40rem) {
  .site-header__logo .site-logo {
    height: 26px;
    max-width: 120px;
  }
}

.site-header__logo:hover {
  color: var(--color-text);
  opacity: 0.85;
}

/* Footer grid — Holoform cierre: papel + hairline Lumen, sin peso */
.site-footer {
  padding-block: var(--space-16);
  border-top: 1px solid color-mix(in srgb, var(--color-border) 88%, var(--bhf-lumenedge-muted) 5%);
  background:
    linear-gradient(180deg, color-mix(in srgb, #fff 97%, var(--bhf-glass-fill) 3%) 0%, var(--color-bg-elevated) 100%);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 55%, transparent);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-10);
}

@media (min-width: 40rem) {
  .site-footer__grid {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: var(--space-12);
  }
}

.site-footer__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-4);
}

.site-footer__brand {
  margin-bottom: 0;
  line-height: 0;
}

.site-footer__logo-link {
  display: inline-block;
  line-height: 0;
  margin-bottom: 1.125rem;
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.site-footer__logo-link:hover {
  opacity: 0.85;
}

.site-footer__logo-link:focus-visible {
  outline: 2px solid var(--color-focus, #426fff);
  outline-offset: 3px;
  border-radius: 2px;
}

.site-footer__brand .footer-logo {
  display: block;
  height: 28px;
  width: auto;
  max-width: min(8.5rem, 100%);
  object-fit: contain;
  object-position: left center;
  margin-bottom: 0;
  flex-shrink: 0;
}

.site-footer__social {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  align-items: center;
}

.site-footer__social li {
  margin: 0;
  padding: 0;
}

.site-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid color-mix(in srgb, var(--color-border) 88%, transparent);
  background: color-mix(in srgb, #fff 40%, transparent);
  transition:
    color var(--holo-motion-duration-fast) var(--holo-motion-ease),
    background var(--holo-motion-duration-fast) var(--holo-motion-ease),
    border-color var(--holo-motion-duration-fast) var(--holo-motion-ease),
    box-shadow var(--holo-motion-duration-micro) var(--holo-motion-ease);
}

.site-footer__social-link:hover {
  color: var(--color-identity);
  background: color-mix(in srgb, #fff 70%, var(--bhf-glass-fill) 30%);
  border-color: color-mix(in srgb, var(--bhf-lumenedge-muted) 8%, var(--color-border) 50%);
  box-shadow: 0 1px 0 color-mix(in srgb, #fff 80%, transparent) inset;
}

.site-footer__social-icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  fill: currentColor;
}

.site-footer__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 28rem;
}

.site-footer__links a {
  display: block;
  padding-block: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  transition:
    color var(--holo-motion-duration-fast) var(--holo-motion-ease),
    transform var(--holo-motion-duration-micro) var(--holo-motion-ease);
}

@media (prefers-reduced-motion: no-preference) {
  .site-footer__links a:hover {
    color: var(--color-identity);
    transform: translateX(2px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-footer__links a:hover {
    color: var(--color-identity);
  }
}

.site-footer__meta {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}