:root {
  --color-primary: #1e40af;
  --color-secondary: #2563eb;
  --color-accent: #b45309;
  --color-background: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-alt: #eef2f7;
  --color-foreground: #172033;
  --color-muted: #5b667a;
  --color-border: #d8e0eb;
  --color-ring: #1e40af;
  --color-danger: #b91c1c;
  --color-success: #047857;
  --shadow-panel: 0 18px 44px rgba(23, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: "Fira Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a {
  color: var(--color-primary);
}

button,
select,
input,
a {
  touch-action: manipulation;
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 20;
  background: var(--color-primary);
  color: #ffffff;
  padding: 10px 14px;
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(216, 224, 235, 0.9);
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(14px);
}

.header-inner,
main,
.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand,
.source-nav a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand {
  color: var(--color-foreground);
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(30, 64, 175, 0.12);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: "Fira Code", monospace;
  font-size: 1rem;
}

.brand small {
  color: var(--color-muted);
  font-size: 0.8rem;
}

.source-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.source-nav a {
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-foreground);
  font-size: 0.92rem;
  font-weight: 600;
}

.source-nav a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

main {
  padding: 28px 0 56px;
}

.hero-band {
  min-height: min(660px, calc(100dvh - 96px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: center;
  padding: 18px 0 30px;
}

.hero-copy {
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--color-accent);
  font-family: "Fira Code", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2.2rem, 7vw, 5.2rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.hero-text {
  max-width: 720px;
  margin: 22px 0 0;
  color: #344054;
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
}

.source-note {
  margin: 18px 0 0;
  color: var(--color-muted);
  font-family: "Fira Code", monospace;
  font-size: 0.92rem;
}

.hero-media {
  margin: 0;
  align-self: stretch;
  min-height: 420px;
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.hero-media img {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: block;
  object-fit: cover;
}

.hero-media figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.88rem;
}

.control-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 18px;
  align-items: end;
  margin: 10px 0 18px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
}

.control-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.segmented button,
select,
.range-field input[type="number"] {
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-surface);
  color: var(--color-foreground);
  font: inherit;
  font-weight: 700;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.segmented button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  cursor: pointer;
}

.segmented button:hover,
select:hover,
.range-field input[type="number"]:hover {
  border-color: var(--color-primary);
}

.segmented button.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

select {
  width: 100%;
  padding: 0 12px;
  cursor: pointer;
}

.axis-controls {
  grid-column: 1 / -1;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.axis-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.control-helper {
  margin: -2px 0 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.reset-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-foreground);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  white-space: nowrap;
}

.reset-button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.axis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.range-field {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fbfdff;
}

.range-title {
  color: var(--color-muted);
  font-weight: 700;
}

.year-output {
  color: var(--color-primary);
  font-weight: 700;
}

.range-field input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  min-height: 44px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.range-field input[type="number"] {
  width: 100%;
  min-width: 82px;
  padding: 0 8px;
  border: 0;
  text-align: center;
  font-family: "Fira Code", monospace;
  font-variant-numeric: tabular-nums;
  appearance: textfield;
  -moz-appearance: textfield;
}

.range-field input[type="number"]::-webkit-outer-spin-button,
.range-field input[type="number"]::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
}

.year-stepper {
  grid-column: 1 / -1;
  width: max-content;
  max-width: 100%;
  display: inline-grid;
  grid-template-columns: 44px minmax(82px, 9ch) 44px;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
}

.year-stepper button {
  min-width: 44px;
  min-height: 44px;
  display: grid;
  place-items: center;
  border: 0;
  background: var(--color-surface);
  color: var(--color-primary);
  cursor: pointer;
}

.year-stepper button:hover {
  background: var(--color-surface-alt);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.metric-card {
  min-height: 126px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
}

.metric-card span,
.metric-card small {
  display: block;
  color: var(--color-muted);
}

.metric-card span {
  font-size: 0.86rem;
  font-weight: 700;
}

.metric-card strong {
  display: block;
  margin: 10px 0 6px;
  font-family: "Fira Code", monospace;
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.1;
}

.metric-card small {
  font-size: 0.88rem;
}

.analysis-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(300px, 0.8fr);
  gap: 18px;
}

.chart-panel,
.insight-panel,
.records-section {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: 0 12px 34px rgba(23, 32, 51, 0.08);
}

.chart-panel,
.insight-panel {
  padding: 18px;
}

.panel-head,
.section-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.legend-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  color: var(--color-muted);
  font-size: 0.84rem;
}

.legend-list span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend {
  width: 26px;
  height: 0;
  display: inline-block;
  border-top: 3px solid;
}

.legend.actual {
  border-color: var(--color-secondary);
}

.legend.fit {
  border-color: var(--color-success);
}

.legend.forecast {
  border-color: var(--color-accent);
  border-top-style: dashed;
}

.chart-wrap {
  position: relative;
  height: 460px;
}

.insight-panel p:not(.eyebrow) {
  color: #344054;
}

.forecast-table-wrap {
  margin-top: 18px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}

caption {
  margin-bottom: 8px;
  color: var(--color-muted);
  text-align: left;
  font-weight: 700;
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--color-surface-alt);
  color: #263143;
  font-size: 0.82rem;
  text-transform: uppercase;
}

td {
  color: #344054;
}

.mono {
  font-family: "Fira Code", monospace;
  font-variant-numeric: tabular-nums;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin: 0 4px 4px 0;
  padding: 0 8px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.tag.pending {
  border-color: #fed7aa;
  background: #fff7ed;
  color: var(--color-accent);
}

.tag.disputed {
  border-color: #fecaca;
  background: #fef2f2;
  color: var(--color-danger);
}

.tag.progression {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: var(--color-success);
}

.records-section {
  margin-top: 18px;
  padding: 18px;
}

.section-head p:last-child {
  max-width: 520px;
  margin: 0;
  color: var(--color-muted);
  text-align: right;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.table-wrap table {
  min-width: 940px;
}

.site-footer {
  padding: 0 0 32px;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

@media (max-width: 920px) {
  .hero-band,
  .control-band,
  .analysis-grid {
    grid-template-columns: 1fr;
  }

  .hero-band {
    min-height: auto;
    padding-top: 24px;
  }

  h1 {
    max-width: 13ch;
  }

  .hero-media {
    min-height: 360px;
  }

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

  .panel-head,
  .section-head {
    display: block;
  }

  .legend-list {
    justify-content: flex-start;
    margin-top: 12px;
  }

  .section-head p:last-child {
    margin-top: 8px;
    text-align: left;
  }
}

@media (max-width: 620px) {
  .header-inner,
  main,
  .site-footer {
    width: min(100% - 24px, 1180px);
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .source-nav {
    width: 100%;
  }

  .source-nav a {
    flex: 1;
    justify-content: center;
  }

  .hero-media {
    min-height: 280px;
  }

  .control-band {
    padding: 14px;
  }

  .axis-head,
  .axis-grid {
    display: block;
  }

  .reset-button,
  .range-field {
    margin-top: 12px;
  }

  .segmented button {
    flex: 1 1 150px;
    justify-content: center;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .chart-wrap {
    height: 360px;
  }
}

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