:root {
  --bg: #020617;
  --surface: #0f172a;
  --surface-2: #1e293b;
  --line: #334155;
  --text: #f8fafc;
  --muted: #94a3b8;
  --actual: #38bdf8;
  --pred: #f59e0b;
  --cta: #22c55e;
  --cta-text: #052e16;
  --warn: #fbbf24;
  --radius: 12px;
  --shadow: none;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Fira Sans", "Noto Sans SC", "Noto Sans JP", "Hiragino Sans", "PingFang SC", "Segoe UI", system-ui, sans-serif;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--cta);
  color: var(--cta-text);
  padding: 8px 12px;
  z-index: 20;
}

.skip-link:focus {
  top: 12px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: rgba(2, 6, 23, 0.92);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 768px) {
  .topbar {
    padding: 16px 24px;
  }
}

@media (min-width: 1024px) {
  .topbar {
    padding: 16px 32px;
  }
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 32px;
  height: 32px;
  color: var(--cta);
  flex: none;
}

h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.sub {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-family: "Fira Code", ui-monospace, monospace;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.site-nav {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
}

.nav-link:hover {
  color: var(--text);
}

.nav-link[aria-current="page"] {
  background: var(--cta);
  color: var(--cta-text);
  font-weight: 600;
}

.langs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.lang {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
}

.lang:hover {
  color: var(--text);
}

.lang[aria-pressed="true"] {
  background: var(--surface-2);
  color: var(--text);
  font-weight: 600;
}

.lang:focus-visible,
.download:focus-visible,
.nav-link:focus-visible,
input:focus-visible {
  outline: 2px solid var(--cta);
  outline-offset: 2px;
}

.download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.download:hover {
  border-color: var(--cta);
  color: var(--cta);
}

.date-field {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

.date-field input,
.date-field select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 8px;
  font: inherit;
  color-scheme: dark;
  cursor: pointer;
}

.date-field select {
  min-width: 11.5rem;
}

.day-nav {
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}

.day-nav:hover:not(:disabled) {
  border-color: var(--cta);
  color: var(--cta);
}

.day-nav:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 16px 48px;
}

@media (min-width: 768px) {
  main {
    padding: 24px 24px 56px;
  }
}

@media (min-width: 1024px) {
  main {
    padding: 24px 32px 64px;
  }
}

.kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (min-width: 1024px) {
  .kpis {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

.kpi,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.kpi {
  padding: 16px;
}

.kpi-label,
dt {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.kpi-value {
  margin: 8px 0 4px;
  font-family: "Fira Code", ui-monospace, monospace;
  font-size: 22px;
  font-weight: 600;
}

.kpi-hint {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.banner {
  margin: 16px 0;
  padding: 10px 14px;
  border-left: 3px solid var(--warn);
  background: var(--surface);
  color: #fde68a;
  font-size: 13px;
}

.panel {
  padding: 16px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.chart-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}

.legend {
  display: flex;
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 12px;
}

.swatch {
  display: inline-block;
  width: 16px;
  height: 3px;
  margin-right: 6px;
  vertical-align: middle;
}

.swatch.actual {
  background: var(--actual);
}

.swatch.pred {
  background: repeating-linear-gradient(
    90deg,
    var(--pred) 0 6px,
    transparent 6px 10px
  );
}

.swatch.routed {
  background: var(--pred);
}

.swatch.legacy {
  background: repeating-linear-gradient(
    90deg,
    #38bdf8 0 6px,
    transparent 6px 10px
  );
}

.chart-wrap {
  position: relative;
  height: 280px;
}

body[data-page="forecast"] .panel > .chart-wrap:not(.chart-wrap-sm) {
  height: 340px;
}

.chart-wrap canvas {
  cursor: pointer;
}

.chart-wrap-sm {
  height: 240px;
}

.split {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

@media (min-width: 1024px) {
  .split {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
  }
}

.chip {
  margin: 0;
  font-size: 12px;
  color: var(--cta-text);
  background: var(--cta);
  padding: 3px 8px;
  border-radius: 999px;
}

.chip.is-ext {
  background: #334155;
  color: #e2e8f0;
}

.summary dl {
  margin: 16px 0;
}

.summary dl > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

dd {
  margin: 0;
  font-family: "Fira Code", ui-monospace, monospace;
  font-weight: 500;
}

@media (prefers-reduced-motion: reduce) {
  .nav-link,
  .lang,
  .download {
    transition: none;
  }
}