.site-header,
.site-skip-link {
  --site-ink: #172e2b;
  --site-green: #176b50;
  --site-surface: #f5f6f2;
  --site-line: #d9dfd6;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  border-bottom: 1px solid var(--site-line);
  background: var(--site-surface);
  color: var(--site-ink);
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  width: min(1180px, calc(100% - 32px));
  min-height: 80px;
  margin-inline: auto;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 11px;
  min-height: 44px;
  color: var(--site-ink);
  font-size: 1.125rem;
  font-weight: 750;
  letter-spacing: -0.035em;
  text-decoration: none;
}

.site-brand-mark {
  position: relative;
  display: block;
  width: 30px;
  height: 32px;
  border: 2px solid var(--site-green);
  border-radius: 3px;
}

.site-brand-mark::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 11px;
  width: 2px;
  background: var(--site-green);
  content: "";
}

.site-brand-mark::after {
  position: absolute;
  top: 12px;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--site-green);
  content: "";
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.site-nav-link,
.site-more > summary,
.site-language {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 44px;
  padding: 10px 13px;
  border-radius: 8px;
  color: var(--site-ink);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav-link:hover,
.site-more > summary:hover,
.site-language:hover,
.site-menu a:hover {
  background: #e7ece4;
}

.site-nav-link[aria-current="page"],
.site-more[data-current="true"] > summary,
.site-more[open] > summary {
  background: #e0ecdf;
  color: #10513c;
}

.site-nav-icon {
  display: none;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  stroke-width: 1.75;
}

.site-nav-short {
  display: none;
}

.site-more {
  position: relative;
}

.site-more > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}

.site-more > summary::-webkit-details-marker {
  display: none;
}

.site-more > summary::after {
  display: block;
  width: 6px;
  height: 6px;
  margin: -3px 2px 0 3px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  content: "";
}

.site-more[open] > summary::after {
  margin-top: 3px;
  transform: rotate(225deg);
}

.site-menu {
  position: absolute;
  top: calc(100% + 16px);
  right: 0;
  width: 292px;
  max-height: calc(100dvh - 120px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 14px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 36px rgb(23 46 43 / 17%);
}

.site-menu-group + .site-menu-group {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--site-line);
}

.site-menu-label {
  display: block;
  padding: 5px 10px 7px;
  color: #4c6157;
  font-size: 0.75rem;
  font-weight: 600;
}

.site-menu a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 10px;
  border-radius: 7px;
  color: var(--site-ink);
  font-size: 0.875rem;
  font-weight: 550;
  line-height: 1.4;
  text-decoration: none;
}

.site-menu a[aria-current="page"] {
  background: #e0ecdf;
  color: #10513c;
  font-weight: 700;
}

.site-language {
  flex: 0 0 auto;
  padding-inline: 12px;
  border: 1px solid var(--site-line);
  font-size: 0.8125rem;
}

.site-header a:focus-visible,
.site-more > summary:focus-visible,
.site-skip-link:focus-visible {
  outline: 3px solid var(--site-green);
  outline-offset: 3px;
}

.site-skip-link {
  position: fixed;
  top: 10px;
  left: 16px;
  z-index: 100;
  padding: 12px 18px;
  transform: translateY(-150%);
  border-radius: 6px;
  background: var(--site-ink);
  color: white;
  font-weight: 600;
}

.site-skip-link:focus {
  transform: translateY(0);
}

.site-page-intro {
  margin: 10px 0 22px;
  color: #4c6157;
  font-size: 0.875rem;
  line-height: 1.6;
}

.site-header ~ #main-content {
  scroll-margin-top: 100px;
}

.site-header ~ #main-content:focus {
  outline: none;
}

/* The supporting pages use the same calm, readable scale as the planner. */
.site-content {
  padding-top: 28px;
}

.site-content h1 {
  max-width: 28ch;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.site-content h2 {
  max-width: 36ch;
  font-size: clamp(1.375rem, 2.6vw, 1.875rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.site-content h3 {
  margin-top: 0;
  font-size: 1.125rem;
  line-height: 1.4;
  letter-spacing: -0.015em;
}

.site-content p,
.site-content li {
  max-width: 72ch;
  line-height: 1.65;
}

.site-content .hero-panel {
  margin-block: 24px 28px;
  padding: clamp(24px, 4vw, 40px);
  border: 0;
  border-radius: 12px;
  background: #e5ede1;
  color: #172e2b;
  box-shadow: none;
}

.site-content .hero-panel h1,
.site-content .hero-panel h2 {
  margin-top: 0;
  color: inherit;
}

.site-content .hero-panel h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
}

.site-content .hero-panel h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.2;
}

.site-content .hero-panel p {
  margin-top: 18px;
  color: #3c5649;
  font-size: 1rem;
}

.site-content .methodology-hero,
.site-content .mission-hero,
.site-content .privacy-hero {
  grid-template-columns: minmax(0, 1fr);
}

.site-content .compare-hero,
.site-content .stats-hero {
  background: #176b50;
  color: #fff;
}

.site-content .compare-hero p,
.site-content .stats-hero p {
  color: #e1ece4;
}

.site-content .compare-hero .status-meta,
.site-content .stats-hero .status-meta {
  color: #e1ece4;
}

.site-content .planner-panel,
.site-content .chart-section,
.site-content .metric-card {
  border-radius: 12px;
  box-shadow: none;
}

.site-content .chart-section {
  margin-top: 28px;
  padding: clamp(20px, 3vw, 28px);
}

.site-content .section-heading {
  gap: 24px;
  margin-bottom: 24px;
}

.site-content .method-grid,
.site-content .mission-grid {
  gap: 0 36px;
  margin-top: 24px;
}

.site-content .method-card,
.site-content .mission-card {
  min-height: 0;
  padding: 26px 0;
  border: 0;
  border-bottom: 1px solid #d9dfd6;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.site-content .method-card p,
.site-content .method-card ul {
  margin-top: 12px;
}

.site-content .metric-card {
  padding: 22px;
}

.site-content .compare-panel {
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: clamp(20px, 3vw, 28px);
}

.site-content .compare-panel h1 {
  max-width: 32ch;
}

.site-content .compare-controls {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.site-content .compare-actions,
.site-content .compare-advanced {
  grid-column: 1 / -1;
}

.site-content .compare-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
}

.site-content .compare-actions button {
  width: auto;
  min-height: 44px;
}

.site-content .compare-advanced .compare-controls {
  padding: 8px 0 20px;
}

.site-content .site-disclosure {
  border-top: 1px solid #d9dfd6;
  border-bottom: 1px solid #d9dfd6;
}

.site-content .site-disclosure > summary {
  min-height: 48px;
  padding: 14px 0;
  color: #176b50;
  font-size: 0.875rem;
  font-weight: 650;
  cursor: pointer;
}

.site-content :is(a, button, input, select, summary):focus-visible {
  outline: 3px solid #176b50;
  outline-offset: 3px;
}

@media (max-width: 920px) and (min-width: 721px) {
  .site-header-inner {
    gap: 12px;
  }

  .site-brand {
    font-size: 1rem;
  }

  .site-nav-link,
  .site-more > summary {
    padding-inline: 10px;
    font-size: 0.8125rem;
  }

  .site-nav-full {
    display: none;
  }

  .site-nav-short {
    display: inline;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: relative;
  }

  .site-header-inner {
    justify-content: space-between;
    gap: 12px;
    min-height: 68px;
  }

  .site-brand {
    font-size: 1.0625rem;
  }

  .site-language {
    padding-inline: 10px;
  }

  .site-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 90;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 7px max(6px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(6px, env(safe-area-inset-left));
    border-top: 1px solid var(--site-line);
    background: var(--site-surface);
  }

  .site-nav-link,
  .site-more > summary {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
    min-height: 54px;
    padding: 7px 2px;
    border-radius: 8px;
    font-size: 0.6875rem;
    font-weight: 650;
    line-height: 1.25;
  }

  .site-nav-icon {
    display: block;
  }

  .site-nav-full,
  .site-more > summary::after {
    display: none;
  }

  .site-nav-short {
    display: inline;
  }

  .site-menu {
    position: fixed;
    top: auto;
    right: 12px;
    bottom: calc(82px + env(safe-area-inset-bottom));
    left: 12px;
    width: auto;
    max-height: calc(100dvh - 110px - env(safe-area-inset-bottom));
    padding: 12px;
  }

  .site-header ~ .app-shell {
    padding-bottom: calc(110px + env(safe-area-inset-bottom));
  }

  .site-header ~ #main-content {
    scroll-margin-top: 16px;
  }

  .site-page-intro {
    margin-block: 0 16px;
    font-size: 0.8125rem;
  }

  .site-header ~ .analytics-consent {
    bottom: calc(82px + env(safe-area-inset-bottom));
  }

  .site-content {
    padding-top: 20px;
  }

  .site-content .hero-panel {
    margin-block: 20px 24px;
  }

  .site-content .compare-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .site-content .compare-actions {
    justify-content: stretch;
  }

  .site-content .compare-actions button {
    flex: 1 1 auto;
    min-height: 44px;
  }

  .site-content .method-grid,
  .site-content .mission-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* The daily-page status shares its light guide surface. */
.site-content .daily-status-panel { border-color: #bacbb7; }
.site-content .daily-status-panel strong { color: #172e2b; font-size: 1.75rem; line-height: 1.25; }
.site-content .daily-status-panel small { color: #3c5649; }