:root {
  --bg: #f1ebe3;
  --fg: #201a17;
  --muted: rgba(32, 26, 23, 0.88);
  --dim: rgba(32, 26, 23, 0.62);
  --accent: #7a3a26;

  /* Calmer lines to keep the page quiet. */
  --border: rgba(32, 26, 23, 0.16);
  --underline: rgba(32, 26, 23, 0.24);
  --avatar-bg: rgba(32, 26, 23, 0.04);
  --skip-bg: rgba(32, 26, 23, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 18px;
  line-height: 1.75;
  letter-spacing: 0.01em;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--underline);
  padding-bottom: 1px;
}

a:hover {
  border-bottom-color: color-mix(in srgb, var(--accent) 85%, transparent);
}

em {
  font-style: italic;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 46px 28px 60px;
}

.skip {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 10px 12px;
  background: var(--skip-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  transform: translateY(-140%);
  transition: transform 160ms ease;
  z-index: 1000;
  color: var(--fg);
}

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

.mast {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  margin-bottom: 28px;
}

.mast__avatar {
  width: 72px;
  height: 72px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--avatar-bg);
  object-fit: cover;
}

.mast__name {
  font-size: 52px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.05;
}

.mast__nav {
  margin-top: 6px;
  font-size: 18px;
}

.mast__nav a {
  color: var(--accent);
  border-bottom: none;
}

.mast__nav a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.sep {
  margin: 0 14px;
  color: var(--accent);
}

.copy {
  color: var(--muted);
  max-width: 74ch;
  hyphens: auto;
}

.copy p {
  margin: 0 0 18px;
}

.block {
  margin-top: 48px;
}

.block h2 {
  margin: 0 0 14px;
  font-size: 40px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list li {
  margin: 10px 0;
  color: var(--muted);
  hyphens: auto;
}

.list .code {
  color: var(--accent);
  border-bottom: none;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.code {
  color: var(--accent);
  border-bottom: none;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.embed {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 92%, var(--fg) 8%);
  overflow: hidden;
}

.embed iframe {
  display: block;
  width: 100%;
  height: min(78vh, 980px);
  border: 0;
  background: var(--bg);
}

.foot {
  margin-top: 60px;
  color: var(--dim);
  font-size: 14px;
}

.foot__inner {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: space-between;
}

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

/* Charts page (static, client-side render) */
.meta {
  margin: 10px 0 0;
  color: var(--dim);
  font-size: 12px;
}

.page-title {
  margin: 0 0 10px;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.1;
  color: var(--fg);
}

.subhead {
  margin: 0;
  max-width: 92ch;
  color: var(--muted);
  hyphens: auto;
}

.range-wrap {
  margin-top: 18px;
}

.range-label {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.range-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 6px;
}

.range-time {
  color: var(--accent);
  font-size: 12px;
}

.range-sliders {
  position: relative;
  height: 26px;
}

.range-sliders input[type="range"] {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  width: 100%;
  margin: 0;
  height: 26px;
  background: transparent;
  pointer-events: none; /* JS reads values; thumb still interactive via thumb pointer events */
  -webkit-appearance: none;
  appearance: none;
}

.range-sliders input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: color-mix(in srgb, var(--accent) 60%, transparent);
  border-radius: 999px;
}

.range-sliders input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -5px;
  border-radius: 999px;
  background: var(--accent);
  border: 2px solid color-mix(in srgb, var(--bg) 82%, var(--fg) 18%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
  pointer-events: auto;
}

.range-sliders input[type="range"]::-moz-range-track {
  height: 4px;
  background: color-mix(in srgb, var(--accent) 60%, transparent);
  border-radius: 999px;
}

.range-sliders input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--accent);
  border: 2px solid color-mix(in srgb, var(--bg) 82%, var(--fg) 18%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
  pointer-events: auto;
}

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

.kpi {
  padding: 8px 0 2px;
}

.kpi__label {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.kpi__value {
  font-size: 29px;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  color: var(--fg);
}

.chart-title {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}

.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;
}

.chart-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.chart-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 92%, var(--fg) 8%);
  overflow: hidden;
}

.chart-card__top {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
}

.chart-card__title h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.chart-card__hint {
  margin-top: 6px;
  color: var(--dim);
  font-size: 14px;
  line-height: 1.55;
}

.controls {
  margin: 0;
  padding: 0;
  border: 0;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 14px;
}

.controls label {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 86%, var(--fg) 14%);
  user-select: none;
}

.controls input[type="checkbox"] {
  accent-color: var(--accent);
}

.chart {
  width: 100%;
  height: 420px;
  padding: 8px 10px 4px;
  color: var(--dim);
  font-size: 14px;
}

.chart--tall {
  height: 520px;
}

/* Plotly chrome tweaks to blend into the site. */
.js-plotly-plot .plotly .modebar {
  background: transparent !important;
}
.js-plotly-plot .plotly .modebar-btn path {
  fill: color-mix(in srgb, var(--fg) 60%, transparent) !important;
}
.js-plotly-plot .plotly .modebar-btn:hover path {
  fill: var(--accent) !important;
}

@media (max-width: 720px) {
  .wrap {
    padding: 28px 18px 44px;
  }
  .mast__name {
    font-size: 38px;
  }
  body {
    font-size: 16px;
  }
  .block h2 {
    font-size: 30px;
  }
  .sep {
    margin: 0 10px;
  }
  .chart {
    height: 360px;
  }
  .chart--tall {
    height: 420px;
  }
  .page-title {
    font-size: 28px;
  }
  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
  .kpi__value {
    font-size: 26px;
  }
  .chart-card__top {
    flex-direction: column;
    align-items: stretch;
  }
  .controls {
    justify-content: flex-start;
  }
}