:root {
  --navy: #07121e;
  --navy-soft: #142737;
  --navy-pale: #112638;
  --cobalt: #46a7ff;
  --cobalt-dark: #77e8ff;
  --cyan: #77e8ff;
  --cyan-pale: oklch(94% 0.035 207);
  --rain: #46a7ff;
  --river: #77e8ff;
  --history: #f7de5e;
  --event: #f7de5e;
  --canvas: #03070b;
  --canvas-deep: #07101a;
  --surface: #0a121c;
  --ink: #f4f8fb;
  --ink-soft: #bdcbd5;
  --muted: #9db0be;
  --line: #233440;
  --line-strong: #3b5363;
  --success: #7ee6a5;
  --success-pale: #0c241a;
  --warning: #f7de5e;
  --warning-pale: #29230e;
  --danger: #ff9b96;
  --danger-pale: #301615;
  --focus: #f7de5e;
  --font-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --text-xs: 0.78rem;
  --text-sm: 0.9rem;
  --text-body: 1rem;
  --text-lead: 1.18rem;
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --content: 92rem;
  --chart-height: 19rem;
  --radius-control: 8px;
  --radius-panel: 14px;
  --z-sticky: 100;
  --z-skip: 500;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
}

body {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-kerning: normal;
  line-height: 1.55;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.2em;
}

button,
select {
  font: inherit;
}

button,
a,
select {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 0.2rem solid var(--focus);
  outline-offset: 0.2rem;
}

[hidden] {
  display: none !important;
}

.content-frame,
.masthead {
  width: min(calc(100% - 2rem), var(--content));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  z-index: var(--z-skip);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-control);
  color: var(--ink);
  background: var(--focus);
  font-weight: 700;
  transform: translateY(-200%);
  transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  color: var(--ink);
  background: var(--navy);
  border-bottom: 1px solid oklch(45% 0.07 250);
}

.masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: var(--space-md);
  align-items: center;
  min-height: 5rem;
  padding-block: var(--space-sm);
}

.identity {
  display: inline-flex;
  gap: var(--space-sm);
  align-items: center;
  width: fit-content;
  min-height: 3rem;
  text-decoration: none;
}

.identity img {
  width: 2.85rem;
  height: 2.85rem;
  border-radius: 50%;
  object-fit: cover;
}

.identity__copy {
  display: grid;
  line-height: 1.1;
}

.identity strong {
  font-size: 1rem;
  font-weight: 700;
}

.identity small {
  margin-top: 0.25rem;
  color: oklch(77% 0.045 240);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.section-nav {
  display: flex;
  grid-column: 1 / -1;
  gap: var(--space-xs);
  overflow-x: auto;
}

.briefing {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.briefing__grid {
  display: grid;
  gap: var(--space-lg);
  padding-block: var(--space-xl);
}

.briefing__title,
.briefing__detail {
  display: grid;
  gap: var(--space-lg);
  align-content: start;
}

.location-line {
  width: fit-content;
  margin: 0;
  color: var(--cobalt-dark);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
}

.briefing-site-title {
  max-width: 14ch;
  margin: 0;
  color: var(--ink);
  font-size: 2.65rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.02;
  text-wrap: balance;
}

.briefing-site-title span {
  display: block;
}

.briefing-site-title #siteLocationLine {
  color: var(--cobalt-dark);
}

.briefing__lede {
  max-width: 67ch;
  margin: 0;
  text-align: justify;
  color: var(--ink-soft);
  font-size: var(--text-body);
  line-height: 1.6;
}

.lead-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.meta-chip {
  display: grid;
  flex: 1 1 8rem;
  gap: 0.2rem;
  min-width: 8rem;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--line-strong);
}

.chip-label {
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 600;
}

.meta-chip strong {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
}

.current-reading {
  display: grid;
  gap: var(--space-xs);
  align-content: start;
  padding: var(--space-lg);
  border-radius: var(--radius-panel);
  color: var(--ink);
  background: var(--navy);
}

.reading-label,
.reading-value,
.reading-note {
  margin: 0;
}

.reading-label {
  color: var(--cyan);
  font-size: var(--text-xs);
  font-weight: 700;
}

.reading-value {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 2.65rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.reading-note {
  max-width: 42ch;
  color: oklch(80% 0.035 240);
  font-size: var(--text-sm);
}

.section-nav a {
  display: grid;
  flex: 0 0 auto;
  min-height: 2.75rem;
  padding: 0.65rem 0.8rem;
  place-items: center;
  border-radius: var(--radius-control);
  color: oklch(82% 0.03 240);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition:
    color 180ms cubic-bezier(0.22, 1, 0.36, 1),
    background-color 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.section-nav a:hover {
  color: var(--ink);
  background: var(--navy-soft);
}

p {
  text-wrap: pretty;
}

h2,
h3 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h2 {
  font-size: 2rem;
  line-height: 1.08;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.16;
}

.readings {
  padding-block: var(--space-xl) var(--space-2xl);
}

.metric-ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

.summary-card {
  display: grid;
  gap: var(--space-xs);
  align-content: start;
  min-width: 0;
  min-height: 9rem;
  padding: var(--space-lg);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.summary-card:nth-child(2n) {
  border-right: 0;
}

.summary-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
  border-right: 0;
}

.summary-card--current {
  grid-column: 1 / -1;
  color: var(--ink);
  background: #123c4b;
  border-color: var(--cobalt-dark);
}

.summary-card .section-label {
  margin: 0;
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.3;
}

.summary-card--current .section-label,
.summary-card--current .summary-note {
  color: oklch(88% 0.035 245);
}

.summary-value {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.summary-card--current .summary-value {
  color: var(--ink);
  font-size: 2.4rem;
}

.summary-note {
  max-width: 34ch;
  margin: 0;
  color: var(--muted);
  font-size: var(--text-xs);
  line-height: 1.45;
}

.section-shell,
.context-section {
  padding-block: var(--space-2xl);
}

.section-heading {
  display: grid;
  gap: var(--space-xl);
  align-items: end;
  margin-bottom: var(--space-xl);
}

.section-heading > div:first-child {
  display: grid;
  gap: var(--space-sm);
}

.section-heading > div:first-child > p {
  max-width: 68ch;
  margin: 0;
  color: var(--muted);
}

.section-heading > div:first-child > .section-label {
  width: fit-content;
  color: var(--cobalt-dark);
  font-size: var(--text-xs);
  font-weight: 700;
}

.window-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm);
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

.window-switcher__copy {
  display: grid;
  gap: 0.15rem;
}

.window-switcher p {
  margin: 0;
}

.window-switcher__copy > p:last-child {
  color: var(--muted);
  font-size: var(--text-xs);
}

.control-label,
.footer-label {
  margin: 0;
  color: var(--ink);
  font-size: var(--text-xs);
  font-weight: 700;
}

.window-switcher-controls {
  display: flex;
  gap: var(--space-xs);
}

.window-button {
  min-height: 2.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  color: var(--ink-soft);
  background: var(--surface);
  cursor: pointer;
  font-weight: 600;
  transition:
    border-color 180ms cubic-bezier(0.22, 1, 0.36, 1),
    color 180ms cubic-bezier(0.22, 1, 0.36, 1),
    background-color 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.window-button:hover {
  border-color: var(--cobalt);
  color: var(--cobalt-dark);
}

.window-button:active {
  transform: translateY(1px);
}

.window-button.is-active {
  border-color: var(--cobalt-dark);
  color: var(--ink);
  background: #123c4b;
}

.observation-grid,
.analysis-grid {
  display: grid;
  gap: var(--space-lg);
}

.data-panel,
.heatmap-panel {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

.data-panel {
  container-type: inline-size;
  display: grid;
  gap: var(--space-md);
  align-content: start;
  padding: var(--space-lg);
}

.data-panel--rainfall {
  border-color: var(--line);
}

.data-panel--depth {
  border-color: var(--line);
}

.data-panel-head {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
  align-items: start;
  justify-content: space-between;
}

.data-panel-head > div {
  display: grid;
  gap: var(--space-xs);
}

.panel-signal {
  display: inline-flex;
  gap: var(--space-xs);
  align-items: center;
  width: fit-content;
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--text-xs);
  font-weight: 700;
}

.panel-signal::before {
  width: 0.65rem;
  height: 0.65rem;
  flex: 0 0 auto;
  border-radius: 2px;
  background: var(--cobalt);
  content: "";
}

.panel-signal--rain::before {
  background: var(--rain);
}

.panel-signal--river::before {
  background: var(--river);
}

.panel-signal--event::before {
  background: var(--event);
}

.panel-signal--history::before {
  background: var(--history);
}

.context-chip {
  width: fit-content;
  margin: 0;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  color: var(--cobalt-dark);
  background: var(--navy-pale);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
}

.data-panel-copy,
.panel-footer-copy,
.panel-subtitle {
  max-width: 72ch;
  margin: 0;
  color: var(--muted);
}

.data-panel-copy {
  font-size: var(--text-sm);
}

.panel-subtitle {
  color: var(--ink);
  font-weight: 600;
}

.data-panel-head h3[hidden] + .panel-subtitle {
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.16;
}

.panel-footer-copy {
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
  font-size: var(--text-xs);
}

.chart-frame {
  position: relative;
  min-height: var(--chart-height);
  padding-top: var(--space-sm);
}

.chart-frame canvas {
  min-height: var(--chart-height);
}

.panel-empty {
  display: grid;
  min-height: var(--chart-height);
  padding: var(--space-xl);
  place-items: center;
  border-radius: var(--radius-control);
  color: var(--muted);
  background: var(--canvas-deep);
  text-align: center;
}

.analysis-section {
  padding-block: var(--space-2xl);
  background: var(--canvas-deep);
  border-block: 1px solid var(--line);
}

.section-heading--analysis {
  margin-bottom: var(--space-xl);
}

.data-panel--response,
.data-panel--historical {
  border-color: var(--line-strong);
}

.heatmap-panel {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-lg);
  padding: var(--space-lg);
}

.heatmap-copy {
  display: grid;
  gap: var(--space-md);
  align-content: start;
}

.heatmap-copy > div:first-child {
  display: grid;
  gap: var(--space-xs);
}

.heatmap-copy > p {
  max-width: 72ch;
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.heatmap-average {
  color: var(--ink) !important;
  font-family: var(--font-mono);
  font-weight: 600;
}

.heatmap-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md) var(--space-xl);
  align-items: start;
}

.heatmap-period-control,
.heatmap-week-control {
  display: grid;
  flex: 1 1 15rem;
  gap: var(--space-xs);
  max-width: 23rem;
}

.heatmap-period-control label,
.heatmap-week-control label {
  color: var(--ink);
  font-size: var(--text-xs);
  font-weight: 700;
}

.heatmap-period-control select,
.heatmap-week-control select {
  min-height: 2.75rem;
  padding: 0.55rem 2.4rem 0.55rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-control);
  color: var(--ink);
  background: var(--surface);
  font-weight: 600;
}

.heatmap-period-control span {
  color: var(--muted);
  font-size: var(--text-xs);
}

.heatmap-frame {
  min-width: 0;
  align-self: start;
  overflow: hidden;
  border-radius: var(--radius-control);
  background: var(--canvas);
}

.heatmap-mount {
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-inline: contain;
  padding: var(--space-md) var(--space-md) var(--space-sm);
  scrollbar-gutter: stable;
}

.level-heatmap-svg {
  width: 100%;
  height: auto;
}

.level-heatmap-svg text {
  font-family: var(--font-sans);
}

.level-heatmap-axis,
.level-heatmap-tick,
.level-heatmap-legend-title,
.level-heatmap-axis-label {
  fill: var(--muted);
  font-size: 11px;
}

.level-heatmap-month {
  fill: var(--ink);
  font-size: 11px;
  font-weight: 700;
}

.level-heatmap-cell,
.level-heatmap-grid-outline,
.level-heatmap-legend-band {
  stroke: oklch(76% 0.025 250);
  stroke-width: 1;
}

.level-heatmap-cell {
  cursor: crosshair;
  transition:
    opacity 180ms cubic-bezier(0.22, 1, 0.36, 1),
    stroke 180ms cubic-bezier(0.22, 1, 0.36, 1),
    stroke-width 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.level-heatmap-cell--week {
  stroke: var(--cobalt);
  stroke-width: 2;
}

.level-heatmap-cell--selected,
.level-heatmap-cell:hover,
.level-heatmap-cell:focus {
  stroke: var(--navy);
  stroke-width: 3;
  outline: none;
}

.level-heatmap-cell--missing {
  fill: url(#heatmap-no-data);
}

.heatmap-day-detail {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.heatmap-day-detail__date {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
}

.heatmap-day-detail dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: var(--space-sm) var(--space-xl);
  margin: 0;
}

.heatmap-day-detail dl > div {
  display: grid;
  gap: var(--space-2xs);
  min-width: 0;
}

.heatmap-day-detail dt {
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 600;
}

.heatmap-day-detail dd {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.context-section {
  border-bottom: 1px solid var(--line);
}

.section-heading--context {
  margin-bottom: var(--space-2xl);
}

.notes-grid {
  display: grid;
  gap: var(--space-xl);
}

.note-panel {
  display: grid;
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--line-strong);
}

.note-panel .section-label {
  margin: 0;
  color: var(--cobalt-dark);
  font-weight: 700;
}

.note-panel p:last-child {
  max-width: 58ch;
  margin: 0;
  color: var(--ink-soft);
}

.official-alert {
  display: grid;
  gap: var(--space-xl);
  margin-block: var(--space-2xl) var(--space-3xl);
  padding: var(--space-lg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-panel);
  background: var(--surface);
}

.official-alert__copy {
  display: grid;
  gap: var(--space-sm);
}

.official-alert h2 {
  font-size: 1.4rem;
  letter-spacing: -0.015em;
}

.official-alert p {
  max-width: 72ch;
  margin: 0;
  color: var(--ink-soft);
}

.official-alert--none {
  border-color: oklch(75% 0.065 152);
  background: var(--success-pale);
}

.official-alert--flood-alert,
.official-alert--warning-no-longer-in-force {
  border-color: var(--warning);
  background: var(--warning-pale);
}

.official-alert--flood-warning,
.official-alert--warning,
.official-alert--severe-flood-warning {
  border-color: var(--danger);
  background: var(--danger-pale);
}

.official-alert--unavailable {
  background: var(--canvas-deep);
}

.official-alert-meta {
  display: grid;
  gap: var(--space-xs);
  align-content: end;
  font-size: var(--text-sm);
}

.official-alert-meta a {
  width: fit-content;
  color: var(--cobalt-dark);
  font-weight: 700;
}

.site-footer {
  color: var(--ink);
  background: var(--navy);
}

.site-footer__inner {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-3xl) max(var(--space-xl), env(safe-area-inset-bottom));
}

.footer-main {
  display: grid;
  gap: var(--space-xl);
}

.footer-main > div:first-child {
  display: grid;
  gap: var(--space-sm);
}

.footer-label,
.footer-contact .control-label {
  color: var(--cyan);
}

.footer-main h2 {
  font-size: 1.8rem;
}

.footer-main p {
  max-width: 65ch;
  margin: 0;
  color: oklch(82% 0.025 240);
}

.footer-contact {
  display: grid;
  gap: var(--space-sm);
  align-content: start;
}

.footer-contact-list {
  display: grid;
  gap: var(--space-xs);
}

.footer-contact-item {
  margin: 0;
}

.footer-contact-label {
  margin-right: var(--space-xs);
  color: oklch(72% 0.035 240);
  font-weight: 600;
}

.footer-contact-value {
  color: var(--ink);
  font-weight: 600;
}

.partner-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.partner-link,
.partner-badge {
  display: grid;
  min-height: 6rem;
  padding: var(--space-md);
  place-items: center;
  border: 1px solid oklch(72% 0.03 240);
  border-radius: var(--radius-control);
  background: #fff;
  transition: border-color 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.partner-link:hover {
  border-color: var(--cyan);
}

.partner-strip img {
  max-width: 10rem;
  max-height: 3.25rem;
  object-fit: contain;
}

@container (min-width: 32rem) {
  .data-panel-head {
    align-items: center;
  }
}

@media (max-width: 39.999rem) {
  .identity strong {
    font-size: 0.88rem;
  }
}

@media (min-width: 40rem) {
  .content-frame,
  .masthead {
    width: min(calc(100% - 3rem), var(--content));
  }

  .briefing-site-title {
    font-size: 2.5rem;
  }

  .briefing__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(20rem, 0.8fr);
  }

  .current-reading {
    grid-column: 1 / -1;
    grid-template-columns: minmax(10rem, 0.45fr) minmax(10rem, 0.55fr);
    column-gap: var(--space-xl);
    align-items: center;
  }

  .reading-label,
  .reading-value {
    grid-column: 1;
  }

  .reading-note {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .metric-ledger {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .summary-card--current {
    grid-column: span 2;
  }

  .summary-card,
  .summary-card:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .summary-card:nth-child(3n) {
    border-right: 0;
  }

  .summary-card:last-child:nth-child(odd) {
    grid-column: auto;
  }

  .section-heading,
  .footer-main {
    grid-template-columns: minmax(0, 1.2fr) minmax(20rem, 0.8fr);
  }

  .window-switcher {
    align-self: end;
  }

  .notes-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .partner-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 62rem) {
  :root {
    --chart-height: 23rem;
  }

  .content-frame,
  .masthead {
    width: min(calc(100% - 5rem), var(--content));
  }

  .masthead {
    grid-template-columns: minmax(0, 1fr) max-content;
    min-height: 5.5rem;
  }

  .section-nav {
    grid-column: auto;
    justify-self: end;
  }

  .briefing__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.15fr) minmax(17rem, 0.65fr);
    align-items: start;
    padding-block: var(--space-2xl);
  }

  .current-reading {
    grid-column: auto;
    display: grid;
    grid-template-columns: 1fr;
  }

  .reading-label,
  .reading-value,
  .reading-note {
    grid-column: auto;
    grid-row: auto;
  }

  .briefing-site-title {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .metric-ledger {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .summary-card--current,
  .summary-card:last-child:nth-child(odd) {
    grid-column: auto;
  }

  .summary-card,
  .summary-card:nth-child(2n),
  .summary-card:nth-child(3n) {
    min-height: 9rem;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .summary-card:last-child {
    border-right: 0;
  }

  .summary-value,
  .summary-card--current .summary-value {
    font-size: 2.15rem;
  }

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

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

  .heatmap-panel {
    grid-template-columns: minmax(0, 1fr);
    padding: var(--space-xl);
  }

  .heatmap-panel > .panel-footer-copy {
    grid-column: 1 / -1;
  }

  .official-alert {
    grid-template-columns: minmax(0, 1.4fr) minmax(16rem, 0.6fr);
  }

  .official-alert-meta {
    justify-items: end;
    text-align: right;
  }
}

@media (pointer: coarse) {
  .section-nav a,
  .window-button,
  .heatmap-period-control select,
  .heatmap-week-control select {
    min-height: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* Professor review, October 2026: v1 identity, v2 information layout. */
:root { color-scheme: dark; }
::selection { color: #03070b; background: #77e8ff; }
* { scrollbar-color: #3b5363 #07101a; }
html { scroll-padding-top: 10rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.site-header { background: #070e16; border-color: var(--line); }
.masthead { min-height: 3.75rem; padding-block: .25rem; }
.identity { color: var(--cyan); font-weight: 600; }
.identity span { color: var(--muted); font-size: .85rem; font-weight: 400; }
.section-nav a:hover { color: var(--cyan); }
.observatory-nav { display: flex; gap: 2rem; align-items: stretch; border-top: 1px solid var(--line); }
.observatory-nav > * { padding: .6rem 0; font-size: .85rem; text-decoration: none; }
.observatory-nav a { border-bottom: 2px solid var(--cyan); color: var(--cyan); }
.observatory-nav span span, .observatory-nav a span, .observatory-nav small { display: block; color: var(--muted); font-size: .72rem; }
.observatory-nav > span { color: var(--muted); }
.briefing__grid { position: relative; gap: 1.5rem; align-items: center; padding-block: 2rem; }
.briefing__title, .briefing__detail { gap: 1rem; }
.briefing-site-title { max-width: 18ch; font-size: 2.5rem; }
.briefing__lede { font-size: .95rem; }
.briefing-site-title #siteLocationLine { margin-top: .35rem; color: var(--cyan); font-size: .8em; }
.observatory-brand { display: grid; justify-items: center; align-content: center; gap: .5rem; }
.observatory-brand img { width: 11rem; height: 11rem; object-fit: contain; }
.observatory-brand p { margin: 0; color: var(--muted); font-size: .78rem; }
.briefing .read-aloud-button { top: .25rem; right: 0; }
.readings { position: relative; }
.readings > .read-aloud-button { top: -.6rem; right: 0; }
.metric-ledger { border-color: var(--line); border-radius: 12px; }
.summary-card { padding: 1rem; }
.summary-value, .summary-card--current .summary-value { font-size: 1.8rem; color: var(--ink); }
.summary-card--current { background: #103340; border-color: var(--line); }
.summary-card--current .summary-value { color: var(--cyan); }
.summary-card .section-label { color: #f7de5e; text-transform: uppercase; font-size: .72rem; }
.summary-note { font-size: .78rem; }
.section-label, .panel-signal { color: #f7de5e; text-transform: uppercase; }
.panel-signal::before { content: none; }
#rainfallEyebrow, #depthEyebrow { display: none; }
h2 { font-size: 1.8rem; }
h3, .data-panel-head h3[hidden] + .panel-subtitle { font-size: 1.25rem; }
.data-panel-copy { min-height: 4.2em; }
.data-panel-head { padding-right: 1.8rem; min-height: 2.5rem; }
.context-chip { padding: .15rem .45rem; border-radius: 4px; }
.window-switcher { justify-self: end; }
.window-button.is-active { color: var(--cyan); }
.read-aloud-section { position: relative; }
.read-aloud-button { position: absolute; top: .65rem; right: .65rem; display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 0; border-radius: 0; background: transparent; color: var(--muted); cursor: pointer; z-index: 1; }
.read-aloud-button:hover, .read-aloud-button[aria-pressed=true] { color: var(--cyan); }
.heatmap-copy { padding-right: 2rem; }
.heatmap-mount { padding: .75rem .5rem 0; overflow: visible; }
.heatmap-legend { display: block; width: min(100%, 750px); margin: .75rem auto; }
.level-heatmap-cell--week { stroke: #748b9a; stroke-width: 1; }
.level-heatmap-cell--selected, .level-heatmap-cell:hover, .level-heatmap-cell:focus { stroke: #f7de5e; stroke-width: 2.5; }
.level-heatmap-svg--mobile > .level-heatmap-grid-outline, .level-heatmap-svg--mobile > .level-heatmap-axis-label { display: none; }
.heatmap-day-detail__date { color: var(--cyan); }
.official-alert h2 { color: var(--success); font-size: 1.45rem; }
.official-alert--flood-alert h2 { color: var(--warning); }
.official-alert--flood-warning h2, .official-alert--severe-flood-warning h2 { color: var(--danger); }
.official-alert--unavailable h2, .official-alert--warning-no-longer-in-force h2 { color: var(--ink); }
.official-alert__copy .panel-signal { color: var(--muted); }
.official-alert-meta { font-size: .85rem; }
.partner-link, .partner-badge { background: #fff; }
@media (min-width: 62rem) {
  .briefing__grid { grid-template-columns: minmax(0, .95fr) minmax(0, 1.4fr) 12rem; }
  .summary-card, .summary-card:nth-child(2n), .summary-card:nth-child(3n) { min-height: 9rem; }
}
@media (min-width: 40rem) and (max-width: 61.999rem) {
  .briefing__grid { grid-template-columns: minmax(0, 1fr) 10rem; }
  .briefing__detail { grid-column: 1; }
  .observatory-brand { grid-column: 2; grid-row: 1 / span 2; }
  .observatory-brand img { width: 9rem; height: 9rem; }
}
@media (max-width: 39.999rem) {
  html { scroll-padding-top: 13rem; }
  .masthead { gap: 0; }
  .observatory-nav { gap: .8rem; }
  .observatory-nav > * { flex: 1; min-width: 0; font-size: .75rem; }
  .observatory-nav small, .observatory-nav a span { font-size: .65rem; }
  .briefing__grid { grid-template-columns: minmax(0, 1fr) 5rem; gap: 1rem; padding-block: 1.75rem; }
  .briefing-site-title { font-size: 1.9rem; }
  .briefing__detail { grid-column: 1 / -1; grid-row: 2; }
  .observatory-brand { grid-column: 2; grid-row: 1; }
  .observatory-brand img { width: 5rem; height: 5rem; }
  .observatory-brand p { display: none; }
  .summary-card--current { grid-column: 1 / -1; }
  .window-switcher { justify-self: stretch; }
  .heatmap-copy { padding-right: 1rem; }
  .heatmap-panel { padding: 1rem; }
  .heatmap-day-detail { padding-inline: .75rem; }
  .level-heatmap-svg text { font-size: 12px; }
  .heatmap-legend text { font-size: 22px; }
}
.skip-link { color: #03070b; }
@media (max-width: 39.999rem) {
  .observatory-nav small, .observatory-nav a span { font-size: .7rem; }
  .summary-card:last-child:nth-child(odd) { grid-column: auto; }
  .summary-card:nth-child(2n) { border-right: 1px solid var(--line); }
  .summary-card:nth-child(3), .summary-card:nth-child(5) { border-right: 0; }
}

/* Mobile inspection: constrain intrinsic widths instead of clipping content. */
.briefing__grid > *, .section-heading > *, .footer-main > *, .heatmap-copy > *,
.heatmap-controls > *, .official-alert > *, .partner-strip > * { min-width: 0; }
.heatmap-controls { align-items: end; }
.heatmap-controls > div { flex: 1 1 13rem; max-width: 100%; }
.heatmap-controls select { width: 100%; min-width: 0; max-width: 100%; font-size: 1rem; }
.heatmap-day-control { display: grid; gap: .5rem; }
.heatmap-day-control label { color: var(--ink); font-size: var(--text-xs); font-weight: 700; }
.heatmap-day-control select { min-height: 2.75rem; padding: .55rem .75rem; border: 1px solid var(--line-strong); border-radius: var(--radius-control); color: var(--ink); background: var(--surface); }
.partner-strip img { width: auto; max-width: 100%; height: auto; max-height: 3.25rem; }
.partner-link, .partner-badge { min-width: 0; }
.heatmap-legend { padding: .5rem; font-size: .8rem; color: var(--muted); }
.heatmap-legend p { margin: .35rem 0; }
.heatmap-legend-bands { display: flex; height: 1rem; border: 1px solid var(--line-strong); }
.heatmap-legend-bands span { flex: 1; }
.heatmap-legend-labels { display: flex; justify-content: space-between; gap: 0; font-size: .75rem; font-variant-numeric: tabular-nums; }
.heatmap-legend-missing { display: flex; align-items: center; gap: .4rem; }
@media (max-width: 39.999rem) {
  .summary-value, .summary-card--current .summary-value { font-size: clamp(1.4rem, 6.6vw, 1.8rem); white-space: nowrap; }
  .summary-card { padding: .85rem; min-height: 0; }
  .summary-card--current { grid-template-columns: 1fr auto; align-items: center; }
  .summary-card--current .summary-note { grid-column: 1 / -1; }
  .data-panel { padding: 1rem; gap: .85rem; }
  .data-panel-head { padding-right: 2.25rem; }
  .data-panel-head > div { min-width: 0; }
  .data-panel-copy { min-height: 0; }
  .section-shell, .context-section { padding-block: 2rem; }
  .section-heading--context { padding-right: 2rem; }
  .heatmap-copy { padding-right: 0; }
  .heatmap-copy > div:first-child { padding-right: 2.25rem; }
  .heatmap-controls { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .heatmap-mount { padding-inline: 0; }
  .level-heatmap-svg text { font-size: 16px; }
  .heatmap-legend { padding-inline: 0; }
  .heatmap-day-detail dl { grid-template-columns: minmax(0, 1fr); }
  .partner-link, .partner-badge { padding: .75rem; min-height: 5rem; }
  .official-alert { padding: 1rem; gap: 1.25rem; }
  .official-alert-meta a, .footer-contact-value { overflow-wrap: anywhere; }
}
/* Second professor review: compact introduction, consistent data alignment. */
:root { --text-body: 1.05rem; --text-sm: 1rem; --text-xs: .85rem; }
.identity { font-size: 1rem; line-height: 1.3; }
.briefing__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr) 10rem; gap: 1.5rem; padding-block: 1.5rem; }
.briefing__title { display: grid; grid-template-columns: 1fr; gap: .6rem; }
.briefing-logo { width: 6.5rem; height: 6.5rem; object-fit: contain; }
.briefing-site-title { font-size: 2.25rem; }
.briefing__lede { font-size: 1rem; line-height: 1.5; }
.observatory-map { width: 10rem; justify-self: end; }
.observatory-map svg { width: 100%; height: auto; }
.readings { padding-block: 1rem 2rem; }
.summary-heading { display: flex; justify-content: space-between; align-items: center; min-height: 44px; margin-bottom: .5rem; }
.summary-heading h2 { font-size: 1.1rem; letter-spacing: 0; }
.summary-heading .read-aloud-button { position: static; flex: 0 0 44px; }
.summary-card .section-label { font-size: .8rem; }
.summary-note { font-size: .85rem; line-height: 1.4; }
.summary-card, .summary-card:nth-child(2n), .summary-card:nth-child(3n) { min-height: 0; }
#analysisTitle { color: #f7de5e; font-size: 1.1rem; letter-spacing: .025em; }
.data-panel-copy { font-size: 1rem; }
.panel-footer-copy { font-size: .9rem; }
.context-chip { font-size: .8rem; }
.observatory-nav > * { font-size: .9rem; }
.observatory-nav a span, .observatory-nav small { font-size: .8rem; }
.heatmap-copy { padding-right: 0; }
.heatmap-copy > div:first-child { padding-right: 2.5rem; }
.heatmap-copy > p, .heatmap-panel > .panel-footer-copy { max-width: none; font-size: 1rem; }
.heatmap-controls { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; gap: 1.25rem; }
.heatmap-controls > div { width: 100%; max-width: none; }
.heatmap-controls label { min-height: 1.5rem; font-size: .9rem; }
.heatmap-controls select { min-height: 48px; }
.level-heatmap-cell, .level-heatmap-cell--week { stroke: none; }
.level-heatmap-cell--selected, .level-heatmap-cell:hover, .level-heatmap-cell:focus { stroke: #f7de5e; stroke-width: 2; }
.level-heatmap-grid-outline { stroke: none; }
.footer-main { grid-template-columns: minmax(0, 1fr) auto; }
.footer-contact { justify-self: end; text-align: right; }
#footerContactTitle { font-size: 1.1rem; }
.footer-contact-list { font-size: 1.05rem; }
@media (min-width: 62rem) {
  .observation-grid .data-panel { grid-template-rows: subgrid; grid-row: span 3; }
  .analysis-grid .data-panel { grid-template-rows: subgrid; grid-row: span 4; }
}
@media (min-width: 40rem) and (max-width: 61.999rem) {
  .briefing__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr) 8rem; gap: 1rem; }
  .briefing__detail { grid-column: auto; }
  .briefing-site-title { font-size: 1.8rem; }
  .observatory-map { width: 8rem; }
}
@media (max-width: 39.999rem) {
  .identity { max-width: 100%; font-size: .95rem; }
  .briefing__grid { grid-template-columns: minmax(0, 1fr) 6rem; gap: 1rem; }
  .briefing__title { grid-column: 1; }
  .briefing-logo { width: 4.5rem; height: 4.5rem; }
  .briefing-site-title { font-size: 1.65rem; }
  .observatory-map { width: 6rem; grid-column: 2; grid-row: 1; align-self: center; }
  .briefing__detail { grid-column: 1 / -1; grid-row: 2; }
  .summary-card .section-label { font-size: .75rem; }
  .summary-card--current { grid-template-columns: minmax(0,1fr) auto; }
  .observatory-nav { gap: .6rem; }
  .observatory-nav > * { font-size: .8rem; }
  .observatory-nav a span, .observatory-nav small { font-size: .75rem; }
  .heatmap-controls { grid-template-columns: minmax(0,1fr); }
  .footer-main { grid-template-columns: minmax(0,1fr); }
  .footer-contact { max-width: 100%; }
  .chart-frame, .chart-frame canvas { min-height: 18rem; }
}

/* Reference image: logo alongside the title on desktop. */
@media (min-width: 62rem) {
  .briefing__grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.4fr) 11rem; }
  .briefing__title { grid-template-columns: 7rem minmax(0, 1fr); align-items: center; gap: 1rem; }
  .briefing-logo { width: 7rem; height: 7rem; }
  .briefing-site-title { font-size: clamp(1.6rem, 2.5vw, 2.25rem); }
  .observatory-map { width: 11rem; }
}

@media (max-width: 39.999rem) {
  .section-nav { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; overflow: visible; }
  .section-nav a { padding-inline: .3rem; font-size: .9rem; }
}

/* Final review: consistent headings and a compact, optional day reading. */
.summary-heading h2 { font-size: 1.8rem; }
.summary-heading .section-label { margin-bottom: .6rem; }
#analysisTitle { color: var(--cyan); font-size: var(--text-xs); letter-spacing: .025em; }
.heatmap-panel { padding: 1.25rem 1.5rem; gap: .8rem; }
.heatmap-copy { gap: .75rem; }
.heatmap-copy > p { margin: 0; line-height: 1.45; }
.heatmap-controls { margin-top: .25rem; gap: 1rem; grid-template-columns: minmax(0,1.45fr) minmax(0,1fr) minmax(0,1fr); }
.heatmap-controls select { padding-inline: .5rem; font-size: .95rem; }
.heatmap-frame { gap: 0; }
.heatmap-mount { padding: 0; }
.heatmap-legend { margin: .2rem auto 0; padding-block: 0; }
.heatmap-panel > .panel-footer-copy { margin: 0; padding-top: .6rem; line-height: 1.45; }
.heatmap-day-detail { padding: .5rem .75rem; margin: 0; width: min(100%, 30rem); background: var(--surface); }
.heatmap-day-detail table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.heatmap-day-detail caption { text-align: left; color: var(--cyan); font-weight: 700; padding-bottom: .35rem; }
.heatmap-day-detail th { text-align: left; font-weight: 500; color: var(--muted); }
.heatmap-day-detail td { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.heatmap-day-detail th, .heatmap-day-detail td { padding-block: .15rem; }
@media (max-width: 39.999rem) {
  .summary-heading h2 { font-size: 1.5rem; }
  .heatmap-panel { padding: 1rem; }
  .heatmap-controls { grid-template-columns: minmax(0,1fr); gap: .75rem; }
  .heatmap-controls select { font-size: .9rem; }
}

.summary-heading .section-label, #analysisTitle { color: var(--cobalt-dark); font-size: var(--text-xs); font-weight: 700; letter-spacing: normal; }

.heatmap-panel { gap: .5rem; padding-block: 1rem; }
.heatmap-copy { gap: .5rem; }
.heatmap-legend { line-height: 1.25; }
.heatmap-legend p { margin-block: .2rem; }
@media (min-width: 40rem) {
  .level-heatmap-svg { display: block; width: min(100%, 1040px); margin-inline: auto; }
}
@media (max-width: 24rem) {
  #heatmapPeriodSelect { font-size: .75rem; font-weight: 500; }
}

/* Theme roles: preserve dark identity; use cool paper and deep teal in daylight. */
:root { --header-surface: #070e16; --selected-surface: #103340; --category: #f7de5e; }
:root[data-theme="light"] {
  color-scheme: light;
  --canvas: #f2f6f8; --canvas-deep: #e9f0f4; --surface: #ffffff;
  --navy: #172f40; --navy-soft: #e9f0f4; --navy-pale: #e4eef3;
  --ink: #172f40; --ink-soft: #344f61; --muted: #4c6475;
  --line: #c7d5de; --line-strong: #728c9e;
  --cyan: #086e85; --cobalt-dark: #086e85; --cobalt: #2457a7;
  --rain: #2457a7; --river: #087c96; --history: #806000; --event: #806000;
  --category: #806000; --focus: #806000; --header-surface: #f2f6f8; --selected-surface: #dceef2;
  --success: #196638; --success-pale: #e7f3e9;
  --warning: #785900; --warning-pale: #fff2ce;
  --danger: #a52f29; --danger-pale: #fbe9e7;
}
.site-header { background: var(--header-surface); }
* { scrollbar-color: var(--line-strong) var(--canvas-deep); }
::selection { color: var(--canvas); background: var(--cyan); }
.summary-card--current, .window-button[aria-pressed="true"] { background: var(--selected-surface); }
.summary-card .section-label, .panel-signal { color: var(--category); }
.theme-control { display: flex; align-items: center; gap: .5rem; color: var(--muted); font-size: .85rem; }
.theme-control select { min-height: 44px; padding: .4rem .6rem; font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius-control); }
:root[data-theme="light"] .section-nav a { color: var(--ink-soft); }
:root[data-theme="light"] .section-nav a:hover { color: var(--cyan); background: var(--selected-surface); }
:root[data-theme="light"] .summary-card--current .summary-note,
:root[data-theme="light"] .footer-contact-value,
:root[data-theme="light"] .footer-note { color: var(--muted); }
:root[data-theme="light"] .context-chip { color: var(--cyan); background: var(--selected-surface); }
:root[data-theme="light"] #mapMarker circle { fill: var(--cyan); stroke: var(--surface); }
:root[data-theme="light"] #mapMarker path { stroke: var(--cyan); }
:root[data-theme="light"] #mapLabel { fill: var(--cyan); }
:root[data-theme="light"] .heatmap-frame { background: #e4ecf1; }
:root[data-theme="light"] #heatmapWeekOutline { stroke: #9a7300; }
:root[data-theme="light"] .level-heatmap-cell--selected,
:root[data-theme="light"] .level-heatmap-cell:hover,
:root[data-theme="light"] .level-heatmap-cell:focus { stroke: #9a7300; }
@media (min-width: 62rem) {
  .masthead { grid-template-columns: minmax(0,1fr) auto auto; column-gap: 1.25rem; }
}
@media (max-width: 61.999rem) {
  .masthead { grid-template-columns: minmax(0,1fr) auto; column-gap: .5rem; }
  .identity { grid-column: 1; }
  .theme-control { grid-column: 2; grid-row: 1; }
  .theme-control > span { display: none; }
  .section-nav { grid-column: 1 / -1; }
}
:root[data-theme="light"] .site-footer { background: var(--canvas-deep); }
:root[data-theme="light"] .footer-main p,
:root[data-theme="light"] .footer-contact-label { color: var(--muted); }
:root[data-theme="light"] .footer-contact .control-label { color: var(--cyan); }
:root[data-theme="light"] #mapLabel { paint-order: stroke; stroke: var(--surface); stroke-width: 3px; stroke-linejoin: round; }


/* Quiet appearance controls; the icon names the destination theme. */
.theme-control { position: relative; justify-self: end; }
.theme-toggle { display: grid; place-items: center; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: var(--radius-control); background: transparent; color: var(--muted); cursor: pointer; }
.theme-toggle:hover { background: var(--selected-surface); color: var(--cyan); }
.theme-toggle svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.theme-sun, :root[data-theme="dark"] .theme-moon { display: none; }
:root[data-theme="dark"] .theme-sun { display: block; }

/* October review: consistent chart copy and a continuous annual calendar. */
.data-panel-copy, .panel-footer-copy { font-size: 1rem; line-height: 1.55; }
.section-heading > div:first-child > .analysis-subtitle { margin: .5rem 0 0; color: var(--ink); font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 600; }
.heatmap-calendar-scroll { max-width: 100%; overflow-x: auto; padding: .5rem; border-radius: var(--radius-control); background: #172733; }
.heatmap-calendar-scroll .level-heatmap-svg { display: block; width: 100%; min-width: 900px; }
.heatmap-calendar-scroll .level-heatmap-axis, .heatmap-calendar-scroll .level-heatmap-month, .heatmap-calendar-scroll .level-heatmap-axis-label { fill: #d6e4ec; }
.heatmap-scroll-hint { display: none; }
.flood-status-symbol { width: 92px; margin-left: auto; color: var(--muted); }
.flood-status-symbol svg { display: block; width: 100%; }
#officialAlert.read-aloud-section, #observatoryPartners.read-aloud-section { position: relative; }
#officialAlert.read-aloud-section { padding-top: 3rem; }
.partners-heading { position: relative; padding-right: 3rem; }
.partners-heading > .read-aloud-button { top: 0; right: 0; }
@media(max-width: 959px) {
  .heatmap-scroll-hint { display: block; margin: .35rem 0; color: var(--muted); font-size: .85rem; }
}

/* Selection remains distinct from the scientific colour scale in both themes. */
#heatmapWeekOutline {
  stroke: #ffe45c;
  stroke-width: 3;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 1px 1px #07131d);
}
:root[data-theme="light"] #heatmapWeekOutline { stroke: #ffe45c; }
#heatmapDayOutline {
  stroke: #fff;
  stroke-width: 3;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 1px 1px #07131d);
}
/* Funding text belongs outside the white logo card, without stretching its row. */
.partner-funded { position: relative; display: grid; min-width: 0; }
.partner-funding { position: absolute; bottom: calc(100% + .4rem); left: 0; width: 100%; text-align: center; color: var(--muted); font-size: .75rem; font-weight: 700; line-height: 1.4; }
.partner-strip { row-gap: 2.25rem; margin-top: 1.5rem; }
.partner-funded img { max-width: min(10rem, 100%); }

/* Accessibility and narrow-screen refinements; scientific presentation is unchanged. */
.skip-link { color: var(--canvas); background: var(--ink); }
.feed-error { margin-block: 1rem; padding: 1rem; border: 1px solid var(--line-strong); border-radius: var(--radius-control); }
.feed-error p { margin-bottom: .75rem; }
@media (min-width: 62rem) {
  .observation-grid .data-panel { grid-row: span 4; }
  .analysis-grid .data-panel { grid-row: span 5; }
}
@media (max-width: 39.999rem) {
  .site-header { border-bottom: 1px solid var(--line); }
  html { scroll-padding-top: 8rem; }
  .footer-contact { justify-self: start; text-align: left; }
}
@media (max-width: 22.499rem) {
  .metric-ledger { grid-template-columns: minmax(0, 1fr); }
  .metric-ledger .summary-card { grid-column: 1; grid-template-columns: minmax(0, 1fr) auto; align-items: center; border-right: 0; border-bottom: 1px solid var(--line); }
  .metric-ledger .summary-card:last-child { border-bottom: 0; }
  .summary-card .summary-note { grid-column: 1 / -1; }
}

/* The narrative fills the dashboard width, with a distinct editorial typeface. */
.today-summary { padding-block: 1rem 1.5rem; }
.today-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.today-heading h2 { margin: 0; font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.5rem, 2.3vw, 2rem); font-weight: 700; }
.today-heading .read-aloud-button { position: static; display: inline-flex; align-items: center; gap: .4rem; width: auto; min-height: 44px; padding: .35rem 0 .35rem .5rem; font-size: .8rem; white-space: nowrap; }
.today-tabs { display: flex; gap: 1.25rem; border-bottom: 1px solid var(--line); margin-top: .4rem; overflow-x: auto; }
.today-tabs button { flex: 0 0 auto; white-space: nowrap; background: none; color: var(--muted); border: 0; border-bottom: 2px solid transparent; border-radius: 0; min-height: 44px; padding: .6rem 0; font: inherit; font-size: .85rem; cursor: pointer; }
.today-tabs button[aria-selected="true"] { color: var(--cyan); border-bottom-color: currentColor; font-weight: 600; }
.today-content { padding-top: .85rem; }
.today-content h3 { margin: 0 0 .45rem; color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: 1.3rem; }
.today-content p { margin: 0; color: var(--ink-soft); font-size: 1rem; line-height: 1.7; max-width: none; }
.today-updated { margin-top: .65rem; color: var(--muted); font-size: .8rem; }
.feed-status { margin-top: .75rem; color: var(--muted); font-size: .9rem; line-height: 1.5; }
@media (max-width: 39.999rem) {
  .today-heading { flex-wrap: wrap; gap: 0 .75rem; }
  .today-tabs { gap: 1rem; }
  .today-tabs button { font-size: .8rem; }
}