.app-shell {
  min-height: 100vh;
  background:
    linear-gradient(180deg, var(--color-surface-muted) 0, var(--color-bg) 220px),
    var(--color-bg);
}

.top-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: var(--nav-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: 0 max(var(--space-5), calc((100vw - var(--page-max)) / 2));
  border-bottom: 1px solid var(--color-border);
  background: var(--color-nav-surface);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  min-width: 240px;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  overflow: hidden;
  border-radius: 50%;
  background: var(--color-surface);
}

.brand-mark img {
  display: block;
  width: 40px;
  height: 44px;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-family: var(--font-logo);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.15;
}

.brand-wordmark {
  display: block;
  width: auto;
  height: 50px;
  margin-bottom: var(--space-1);
}

.brand small {
  display: block;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.25;
}

.top-nav__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.nav-link {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-weight: 650;
  transition:
    background-color 0.18s ease,
    color 0.18s ease;
}

.nav-link:hover,
.nav-link.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  text-decoration: none;
}

.nav-link.is-active {
  box-shadow: inset 0 0 0 1px var(--color-border);
}

.page {
  width: min(100% - 32px, var(--page-max));
  margin: 0 auto;
  padding: var(--space-8) 0 104px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-line-strong);
}

.page-header p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--color-muted);
}

.page-kicker {
  margin-bottom: var(--space-2);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 800;
}

.content-band {
  margin-bottom: var(--space-6);
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: var(--space-6);
  align-items: start;
}

.page-grid--main {
  grid-template-columns: minmax(0, 1fr) 320px;
}

.profile-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: var(--space-6);
  align-items: start;
}

.stack {
  display: grid;
  gap: var(--space-4);
}

.section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}

.section-heading p {
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-4);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
}

.local-impact-card-grid {
  margin-top: var(--space-4);
}

.impact-report,
.impact-boundaries,
.support-prompt,
.donation-intent-form {
  display: grid;
  gap: var(--space-4);
}

.impact-report__metrics {
  margin-top: var(--space-2);
}

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

.impact-boundaries section {
  display: grid;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
}

.impact-boundaries h3 {
  margin-bottom: 0;
}

.impact-boundaries ul {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding-left: var(--space-5);
}

.mobile-nav {
  position: sticky;
  top: var(--nav-height);
  z-index: 19;
  display: none;
  width: min(100% - 24px, var(--page-max));
  min-height: 72px;
  margin: var(--space-3) auto 0;
  grid-template-columns: repeat(auto-fit, minmax(52px, 1fr));
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.mobile-nav__item {
  display: grid;
  min-width: 0;
  place-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-1);
  color: var(--color-muted);
  font-size: 10px;
  font-weight: 700;
  text-align: center;
}

.mobile-nav__item::before {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-surface-muted);
  color: var(--color-primary);
  font-size: 13px;
}

.mobile-nav__item[data-nav-key="catalog"]::before {
  content: "⌕";
}

.mobile-nav__item[data-nav-key="give"]::before {
  content: "+";
}

.mobile-nav__item[data-nav-key="request"]::before {
  content: "?";
}

.mobile-nav__item[data-nav-key="agreements"]::before {
  content: "✓";
}

.mobile-nav__item[data-nav-key="impact"]::before {
  content: "↗";
}

.mobile-nav__item[data-nav-key="profile"]::before {
  content: "•";
}

.mobile-nav__item span {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mobile-nav__item.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.mobile-nav__item.is-active::before {
  background: var(--color-primary);
  color: var(--color-surface-strong);
}

@media (max-width: 900px) {
  .top-nav__links {
    display: none;
  }

  .brand {
    min-width: 0;
  }

  .mobile-nav {
    display: grid;
  }

  .page {
    padding-top: var(--space-6);
    padding-bottom: var(--space-8);
  }

  .page-grid,
  .page-grid--main,
  .profile-layout,
  .impact-boundaries {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 29px;
  }

  .page {
    width: min(100% - 24px, var(--page-max));
  }

  .page-header,
  .section-heading {
    display: grid;
  }

  .brand small {
    display: none;
  }

  .brand-wordmark {
    width: auto;
    height: 48px;
  }
}