:root {
  --bg: #ffffff;
  --ink: #101418;
  --ink-2: #2d353d;
  --muted: #6e7781;
  --line: rgba(16, 20, 24, 0.12);
  --line-soft: rgba(16, 20, 24, 0.07);
  --navy: #183a5a;
  --red: #b53a2e;
  --green: #2d7d5f;
  --amber: #a86d14;
  --surface: #f7f9fb;
  --content: min(1280px, calc(100vw - 2rem));
  --font: "Inter", "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
select,
input {
  font: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  width: var(--content);
  margin: 0 auto;
  padding: 0.75rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.brand-mark {
  width: 1.55rem;
  height: 1.55rem;
}

.site-nav nav {
  display: flex;
  gap: 1.1rem;
}

.site-nav nav a,
.label,
.muted,
.segmented button,
th {
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav nav a {
  color: var(--muted);
}

.site-nav nav a:hover {
  color: var(--ink);
}

main {
  width: var(--content);
  margin: 0 auto;
  min-width: 0;
}

.observatory {
  display: grid;
  grid-template-columns: 0.95fr 1.55fr 0.82fr;
  gap: 1rem;
  padding: clamp(1.2rem, 2vw, 1.8rem) 0 clamp(2rem, 4vw, 3rem);
  scroll-margin-top: 4rem;
}

.intro-panel,
.map-panel,
.timeline-panel,
.chart-panel,
.table-panel,
.report-detail,
.source-grid article,
.kpi {
  border-top: 1px solid var(--line);
  min-width: 0;
}

.intro-panel {
  display: flex;
  flex-direction: column;
  min-height: 32rem;
  padding-top: 1rem;
}

.label {
  margin: 0 0 0.42rem;
  color: var(--navy);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0.85rem;
  font-size: clamp(2.05rem, 3.65vw, 3.85rem);
  line-height: 0.95;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.35rem, 2.4vw, 2.35rem);
  line-height: 1.03;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0;
  font-size: 0.86rem;
  line-height: 1.25;
}

.lede {
  max-width: 34rem;
  margin-bottom: 1.1rem;
  color: var(--ink-2);
  font-size: 0.95rem;
}

.source-note {
  margin-top: auto;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line-soft);
  color: var(--ink-2);
}

.source-note strong {
  display: block;
  margin-bottom: 0.2rem;
}

.kpi-grid {
  grid-column: 1 / 4;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  order: -1;
}

.kpi {
  min-height: 5.5rem;
  padding: 0.75rem 0.8rem 0 0;
}

.kpi + .kpi {
  border-left: 1px solid var(--line-soft);
  padding-left: 0.8rem;
}

.kpi strong {
  display: block;
  margin-bottom: 0.15rem;
  font-size: clamp(1.45rem, 2.2vw, 2.35rem);
  line-height: 1;
  font-weight: 800;
}

.kpi span {
  display: block;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
}

.map-panel,
.timeline-panel {
  padding-top: 0.9rem;
}

.panel-head,
.section-head.split {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.panel-head {
  margin-bottom: 0.75rem;
}

.segmented {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.12rem;
  border: 1px solid var(--line-soft);
  background: var(--surface);
}

.segmented button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0.42rem 0.55rem;
}

.segmented button.active {
  background: var(--ink);
  color: #fff;
}

.sea-map {
  width: 100%;
  height: 32rem;
  border: 1px solid var(--line-soft);
  background: var(--surface);
}

.leaflet-container {
  font-family: var(--font);
}

.milestone-list {
  display: grid;
  gap: 0.65rem;
  margin-top: 1rem;
}

.milestone {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--line-soft);
}

.milestone time {
  font-weight: 800;
  color: var(--red);
}

.milestone p {
  margin: 0;
  color: var(--ink-2);
}

.analytics-section {
  padding: clamp(2rem, 4vw, 3.4rem) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 4rem;
}

.section-head {
  max-width: 48rem;
  margin-bottom: 1.2rem;
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.wide {
  grid-column: span 2;
}

.chart-panel,
.table-panel,
.report-detail {
  padding-top: 0.85rem;
}

.muted {
  color: var(--muted);
}

.year-bars,
.focus-bars,
.stack-bars,
.trend-grid,
.city-load {
  display: grid;
  gap: 0.5rem;
}

.year-row,
.focus-row,
.stack-row,
.trend-row,
.city-row {
  display: grid;
  align-items: center;
  gap: 0.65rem;
}

.year-row {
  grid-template-columns: 3rem 1fr 4.5rem;
}

.focus-row,
.city-row {
  grid-template-columns: minmax(8rem, 11rem) 1fr 3rem;
}

.stack-row {
  grid-template-columns: minmax(5.5rem, 7rem) 1fr 3.5rem;
}

.trend-row {
  grid-template-columns: minmax(9rem, 12rem) repeat(4, 1fr);
}

.bar-track {
  position: relative;
  height: 0.42rem;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line-soft);
}

.bar-fill {
  height: 100%;
  background: var(--navy);
}

.bar-fill.red {
  background: var(--red);
}

.bar-fill.green {
  background: var(--green);
}

.bar-fill.amber {
  background: var(--amber);
}

.spark {
  display: block;
  height: 2.2rem;
  background:
    linear-gradient(to top, var(--navy), var(--navy)) bottom left / var(--h, 50%) var(--h, 50%) no-repeat,
    var(--surface);
  border: 1px solid var(--line-soft);
}

.city-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.65fr;
  gap: 1.2rem;
}

.controls {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

select {
  min-width: 11rem;
  border: 1px solid var(--line-soft);
  background: #fff;
  color: var(--ink);
  padding: 0.5rem 0.65rem;
}

input[type="search"] {
  min-width: min(18rem, 100%);
  border: 1px solid var(--line-soft);
  background: #fff;
  color: var(--ink);
  padding: 0.5rem 0.65rem;
}

.text-button {
  border: 1px solid var(--line-soft);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.5rem 0.65rem;
  text-transform: uppercase;
}

.text-button:hover {
  background: var(--ink);
  color: #fff;
}

.table-wrap {
  width: 100%;
  max-width: 100%;
  max-height: 35rem;
  overflow: auto;
  border-top: 1px solid var(--line-soft);
}

table {
  width: 100%;
  min-width: 44rem;
  border-collapse: collapse;
}

th,
td {
  padding: 0.62rem 0.5rem 0.62rem 0;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #fff;
  color: var(--muted);
}

td {
  color: var(--ink-2);
  font-size: 0.82rem;
}

.report-detail {
  display: grid;
  grid-template-columns: 0.6fr 1fr;
  gap: 1.2rem;
}

.report-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}

.mini-stat {
  padding-top: 0.55rem;
  border-top: 1px solid var(--line-soft);
}

.mini-stat strong {
  display: block;
  font-size: 1.4rem;
  line-height: 1;
}

.mini-stat span,
.report-detail li,
.source-grid p,
.methodology-grid p {
  color: var(--ink-2);
}

.report-detail ul {
  margin: 0;
  padding-left: 1.1rem;
}

.source-grid,
.methodology-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.source-grid article,
.methodology-grid article {
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
}

.source-grid a {
  color: var(--navy);
  font-weight: 800;
}

.site-footer {
  margin-top: 2rem;
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line-soft);
}

.footer-content {
  width: var(--content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 1rem;
  align-items: start;
}

.footer-content p {
  color: var(--ink-2);
}

.footer-logos {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.footer-logos img {
  display: block;
  width: auto;
  max-width: 7rem;
  max-height: 2.4rem;
}

.footer-fine {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.75rem;
}

button:focus-visible,
a:focus-visible,
select:focus-visible {
  outline: 2px solid rgba(24, 58, 90, 0.35);
  outline-offset: 2px;
}

@media (max-width: 1100px) {
  .observatory,
  .analytics-grid,
  .city-grid,
  .report-detail,
  .source-grid,
  .methodology-grid,
  .footer-content {
    grid-template-columns: 1fr;
  }

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

  .wide {
    grid-column: auto;
  }

  .intro-panel {
    min-height: auto;
  }
}

@media (max-width: 760px) {
  :root {
    --content: calc(100vw - 1rem);
  }

  .site-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    scrollbar-width: none;
  }

  .site-nav nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav nav a {
    white-space: nowrap;
  }

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

  .sea-map {
    height: 23rem;
  }

  .trend-row {
    grid-template-columns: 1fr;
  }

  .footer-logos {
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .kpi + .kpi {
    border-left: 0;
    padding-left: 0;
  }

  .panel-head,
  .section-head.split {
    align-items: stretch;
    flex-direction: column;
  }

  .year-row,
  .focus-row,
  .stack-row,
  .city-row {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }
}