/* =========================================================
   Layout — Mixed Living Knowledge Platform
   ========================================================= */

/* -------------------------------------------------------
   App shell
   ------------------------------------------------------- */

.app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.app-main {
  flex: 1 1 auto;
}

/* -------------------------------------------------------
   Site header / navigation
   ------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgb(255 255 255 / 0.9);
  border-bottom: var(--border-width) solid var(--color-border);
  height: var(--nav-height);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  gap: var(--space-6);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
  border-radius: var(--radius-md);
}

.site-logo__img {
  height: 52px;
  width: auto;
  transition: transform var(--transition-fast);
}

.site-logo:hover .site-logo__img {
  transform: scale(1.03);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-right: auto;
  margin-left: var(--space-4);
}

.site-header__controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.975rem;
  font-weight: var(--font-weight-semibold);
  color: var(--brand-teal);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.site-nav__link:hover {
  color: var(--color-primary-800);
  background: var(--color-primary-50);
  text-decoration: none;
}

.site-nav__link[aria-current="page"],
.site-nav__link.is-active {
  color: var(--color-primary-800);
  background: var(--brand-blue-100);
}

.site-nav__link[aria-current="page"]::after,
.site-nav__link.is-active::after {
  content: "";
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: 5px;
  height: 2px;
  border-radius: var(--radius-full);
  background: var(--brand-salmon);
}

.site-nav__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.site-search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--brand-teal);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-search-btn:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-800);
}

.site-nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--brand-teal);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav__toggle:hover {
  color: var(--color-primary-800);
  background: var(--color-primary-50);
}

/* -------------------------------------------------------
   Site footer
   ------------------------------------------------------- */

.site-footer {
  background: var(--color-primary-800);
  color: var(--color-primary-100);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--section-space);
  border-top: 6px solid var(--brand-salmon);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.site-footer__logo {
  width: 120px;
  height: auto;
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-3);
  background: white;
  border-radius: var(--radius-lg);
}

.site-footer__brand p {
  font-size: var(--text-sm);
  line-height: var(--line-height-relaxed);
  color: var(--color-primary-100);
  max-width: 38ch;
}

.site-footer__col h3 {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: white;
  margin-bottom: var(--space-4);
}

.site-footer__links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__links a,
.site-footer__links > li > span {
  font-size: var(--text-sm);
  color: var(--color-primary-100);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-footer__links .link-pending {
  color: var(--color-primary-100);
  font-size: var(--text-sm);
}

.site-footer__links .badge {
  color: var(--color-neutral-700);
}

.site-footer__links a:hover {
  color: white;
  text-decoration: underline;
}

.site-footer__bottom {
  border-top: 1px solid rgb(255 255 255 / 0.14);
  padding-top: var(--space-6);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-primary-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* -------------------------------------------------------
   Page layout helpers
   ------------------------------------------------------- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container--narrow {
  max-width: var(--content-width);
}

.page-section {
  padding: var(--section-space) 0;
}

.page-section--sm {
  padding: var(--space-10) 0;
}

.page-section--lg {
  padding: var(--space-24) 0;
}

/* -------------------------------------------------------
   View containers
   ------------------------------------------------------- */

.view {
  display: none;
}

.view.is-active {
  display: block;
}

/* -------------------------------------------------------
   Two-column with sidebar
   ------------------------------------------------------- */

.layout-sidebar {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-8);
  align-items: start;
}

.layout-sidebar--right {
  grid-template-columns: 1fr 280px;
}

/* -------------------------------------------------------
   Split layout: map + list
   ------------------------------------------------------- */

.layout-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: calc(100dvh - var(--nav-height));
}

.layout-split__map {
  position: sticky;
  top: var(--nav-height);
  height: calc(100dvh - var(--nav-height));
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.layout-split__list {
  overflow-y: auto;
  padding: var(--space-8) var(--space-8) var(--space-10);
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
}

/* -------------------------------------------------------
   Grid helpers
   ------------------------------------------------------- */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}

/* -------------------------------------------------------
   Responsive breakpoints
   ------------------------------------------------------- */

@media (max-width: 1024px) {
  .layout-split {
    grid-template-columns: 1fr;
  }

  .layout-split__map {
    position: relative;
    top: 0;
    height: 560px;
  }

  .layout-split__list {
    border-left: none;
    border-top: 1px solid var(--color-border);
    padding: var(--space-6) var(--gutter) var(--space-10);
  }

  .layout-sidebar {
    grid-template-columns: 1fr;
  }

  .layout-sidebar--right {
    grid-template-columns: 1fr;
  }

  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 1100px) {
  .site-nav {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    margin: 0;
    background: var(--color-surface);
    border-bottom: var(--border-width) solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-3) var(--gutter) var(--space-5);
    gap: var(--space-1);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__link {
    width: 100%;
    height: 48px;
    padding: 0 var(--space-4);
    font-size: var(--text-lg);
  }

  .site-nav__link[aria-current="page"]::after,
  .site-nav__link.is-active::after {
    left: 0;
    right: auto;
    top: 12px;
    bottom: 12px;
    width: 3px;
    height: auto;
  }

  .site-nav__toggle {
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .site-header__inner {
    gap: var(--space-2);
  }

  .site-logo__img {
    height: 44px;
  }

  .layout-split__map {
    height: auto;
    background: var(--color-surface-2);
  }

  .layout-split__map .map-container {
    height: 420px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 480px) {
  .layout-split__map .map-container {
    height: 380px;
  }
}