@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Roboto:wght@400;500;700&display=swap");

:root {
  --color-primary: #0584c6;
  --color-primary-light: #25a4e6;
  --color-primary-dark: #0064a6;
  --color-secondary: #003e54;
  --color-secondary-light: #205e74;
  --color-background: #f6f6f6;
  --color-surface: #ffffff;
  --color-text: #333333;
  --color-muted: #667085;
  --color-border: #dce3e8;
  --shadow-sm: 0 4px 18px rgba(0, 62, 84, 0.08);
  --shadow-md: 0 14px 36px rgba(0, 62, 84, 0.12);
  --radius-sm: 10px;
  --radius-md: 18px;
  --content-width: 1320px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: "Montserrat", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 10000;
  padding: 12px 18px;
  border-radius: 0 0 8px 8px;
  background: var(--color-secondary);
  color: white;
  font-weight: 700;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

.site-shell {
  min-height: 100vh;
  overflow: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 100, 166, 0.97);
  box-shadow: 0 8px 24px rgba(0, 62, 84, 0.14);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--content-width));
  min-height: 76px;
  margin: 0 auto;
}

.brand {
  display: grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  text-decoration: none;
  color: white;
  line-height: 1;
}

.brand-main {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.08em;
}

.brand-domain {
  color: #97edf0;
  font-size: 1.15rem;
  font-weight: 700;
}

.brand-name {
  grid-column: 1 / -1;
  margin-top: 5px;
  font-family: "Roboto", sans-serif;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  opacity: 0.9;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  position: relative;
  padding: 10px 0;
  color: white;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 2px;
  background: #97edf0;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.2s ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 470px;
  padding: 84px max(24px, calc((100vw - var(--content-width)) / 2));
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 22%, rgba(119, 205, 208, 0.24), transparent 25%),
    linear-gradient(125deg, var(--color-secondary) 0%, var(--color-primary-dark) 58%, #0584c6 100%);
  color: white;
}

.hero::after {
  position: absolute;
  right: -110px;
  bottom: -190px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  content: "";
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-kicker,
.eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  color: #97edf0;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.17em;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-content > p {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-family: "Roboto", sans-serif;
  font-size: 1.18rem;
  line-height: 1.6;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.hero-meta span {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-family: "Roboto", sans-serif;
  font-size: 0.78rem;
}

.hero-mark {
  position: relative;
  width: 260px;
  height: 260px;
  margin-right: 5vw;
}

.hero-circle {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.32);
  border-radius: 50%;
}

.circle-one {
  inset: 0;
}

.circle-two {
  inset: 44px;
  border-color: rgba(151, 237, 240, 0.58);
}

.circle-three {
  inset: 91px;
  border: 0;
  background: #97edf0;
  box-shadow: 0 0 80px rgba(151, 237, 240, 0.45);
}

.page-content {
  width: 100%;
}

.content-section {
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
  padding: 88px 0 20px;
}

.section-tinted {
  position: relative;
}

.section-tinted::before {
  position: absolute;
  z-index: -1;
  top: 42px;
  right: calc((100vw - min(calc(100vw - 48px), var(--content-width))) / -2);
  bottom: -42px;
  left: calc((100vw - min(calc(100vw - 48px), var(--content-width))) / -2);
  background: #eef7fa;
  content: "";
}

.section-heading {
  max-width: 820px;
  margin-bottom: 34px;
}

.section-heading .eyebrow {
  color: var(--color-primary);
}

.section-heading h2 {
  margin: 0 0 14px;
  color: var(--color-secondary);
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.section-heading p,
.chart-card-copy p,
.method-grid p {
  margin: 0;
  color: var(--color-muted);
  font-family: "Roboto", sans-serif;
  font-size: 1rem;
  line-height: 1.55;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.metric-card {
  position: relative;
  min-height: 180px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.metric-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 5px;
  background: var(--card-accent);
  content: "";
}

.metric-label {
  margin: 0 0 18px;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.metric-value {
  margin: 0;
  color: var(--color-secondary);
  font-size: clamp(2.2rem, 4vw, 3.3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.055em;
}

.metric-detail {
  margin: 13px 0 0;
  color: var(--color-muted);
  font-family: "Roboto", sans-serif;
  font-size: 0.84rem;
}

.method-note {
  margin-top: 22px;
  padding: 18px 22px;
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: #e9f6fc;
  color: var(--color-secondary-light);
  font-family: "Roboto", sans-serif;
  line-height: 1.5;
}

.filter-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 24px;
  padding: 18px 22px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.filter-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.filter-copy label,
.range-control label {
  color: var(--color-secondary);
  font-size: 0.85rem;
  font-weight: 700;
}

.filter-copy span {
  color: var(--color-muted);
  font-family: "Roboto", sans-serif;
  font-size: 0.78rem;
}

.year-dropdown {
  width: min(100%, 300px);
}

.Select-control {
  border-color: var(--color-border) !important;
  border-radius: 8px !important;
  box-shadow: none !important;
}

.Select-value {
  border-color: #8cc2f7 !important;
  background: #e9f6fc !important;
  color: var(--color-primary-dark) !important;
}

.chart-card {
  margin: 0 0 28px;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.chart-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.chart-card-copy {
  max-width: 840px;
  margin-bottom: 12px;
}

.chart-card-copy h3,
.method-grid h3 {
  margin: 0 0 8px;
  color: var(--color-secondary);
  font-size: 1.22rem;
  letter-spacing: -0.02em;
}

.chart-card-copy-with-filter {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  max-width: none;
  gap: 32px;
}

.range-control {
  width: min(100%, 680px);
  min-width: 600px;
  padding-top: 5px;
}

.range-control label {
  display: block;
  margin-bottom: 12px;
}

.two-column-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.two-column-grid .chart-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
}

.two-column-grid .chart-card-copy {
  min-height: 112px;
}

.two-column-grid .chart-card > div:last-child {
  flex: 1;
}

.methodology {
  padding-bottom: 90px;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.method-grid > div {
  padding: 26px;
  border-top: 4px solid var(--color-primary);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.site-footer {
  background: var(--color-secondary);
  color: white;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--content-width));
  min-height: 150px;
  margin: 0 auto;
  gap: 28px;
}

.footer-inner strong {
  font-size: 1.7rem;
  letter-spacing: -0.04em;
}

.footer-inner p {
  margin: 7px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-family: "Roboto", sans-serif;
  font-size: 0.82rem;
}

.chart {
  width: 100%;
}

.dash-graph,
.js-plotly-plot,
.plot-container {
  width: 100% !important;
}

.rc-slider-track {
  background-color: var(--color-primary) !important;
}

.rc-slider-handle {
  border-color: var(--color-primary) !important;
}

.rc-slider-handle:hover,
.rc-slider-handle:active,
.rc-slider-handle:focus-visible {
  border-color: var(--color-primary-dark) !important;
  box-shadow: 0 0 0 4px rgba(5, 132, 198, 0.16) !important;
}

@media (max-width: 1100px) {
  .two-column-grid {
    grid-template-columns: 1fr;
  }

  .two-column-grid .chart-card-copy {
    min-height: 0;
  }

  .chart-card-copy-with-filter {
    align-items: stretch;
    flex-direction: column;
  }

  .range-control {
    width: 100%;
    min-width: 0;
  }

  .hero-mark {
    width: 210px;
    height: 210px;
    margin-right: 0;
  }
}

@media (max-width: 820px) {
  .header-inner {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .main-nav {
    display: none;
  }

  .hero {
    min-height: 520px;
    padding: 70px 24px;
  }

  .hero-mark {
    position: absolute;
    right: -75px;
    bottom: -65px;
    opacity: 0.55;
  }

  .content-section {
    width: min(calc(100% - 32px), var(--content-width));
    padding-top: 68px;
  }

  .metrics-grid,
  .method-grid {
    grid-template-columns: 1fr;
  }

  .filter-panel,
  .chart-card-copy-with-filter,
  .footer-inner {
    align-items: stretch;
    flex-direction: column;
  }

  .year-dropdown,
  .range-control {
    width: 100%;
    min-width: 0;
  }

  .chart-card {
    padding: 18px 12px;
    border-radius: 12px;
  }
}

@media (max-width: 520px) {
  .hero h1 {
    font-size: 2.25rem;
  }

  .hero-content > p {
    font-size: 1rem;
  }

  .metric-card {
    min-height: 160px;
    padding: 24px;
  }

  .filter-panel {
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}