/* Barrel to Pump. Design tokens first, then components. */
/* Layout: sticky top bar, then a 12-col dashboard — KPI row, chart + event panel, timeline, counties map + table, report form. */
:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-2: #f1f3f5;
  --line: #e3e6ea;
  --line-strong: #cfd4da;
  --ink: #111417;
  --ink-2: #4b535c;
  --ink-3: #7b848e;
  --accent: #111417;
  --accent-ink: #ffffff;
  --up: #c2410c;
  --down: #15803d;
  --petrol: #2a78d6;
  --diesel: #eb6834;
  --heating: #1baf7a;
  --crude: #eda100;
  --event: #6b7480;
  --focus: #2a78d6;
  --shadow: 0 1px 2px rgba(17,20,23,.04), 0 1px 1px rgba(17,20,23,.03);
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --r: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d0f11; --surface: #15181b; --surface-2: #1c2024; --line: #262b30; --line-strong: #353b42;
    --ink: #f2f4f6; --ink-2: #b2bac3; --ink-3: #828b95; --accent: #f2f4f6; --accent-ink: #0d0f11;
    --up: #fb923c; --down: #4ade80;
    --petrol: #3987e5; --diesel: #d95926; --heating: #199e70; --crude: #c98500; --event: #8a939d; --focus: #5598e7;
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d0f11; --surface: #15181b; --surface-2: #1c2024; --line: #262b30; --line-strong: #353b42;
  --ink: #f2f4f6; --ink-2: #b2bac3; --ink-3: #828b95; --accent: #f2f4f6; --accent-ink: #0d0f11;
  --up: #fb923c; --down: #4ade80;
  --petrol: #3987e5; --diesel: #d95926; --heating: #199e70; --crude: #c98500; --event: #8a939d; --focus: #5598e7;
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }
body { margin: 0; min-height: 100vh; }
img { max-width: 100%; }
[hidden] { display: none !important; }
body { background: var(--bg); color: var(--ink); font: 14px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -.01em; }

/* Top bar */
.topbar { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.topbar-in { max-width: 1240px; margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 600; letter-spacing: -.01em; white-space: nowrap; }
.brand svg { width: 22px; height: 22px; }
.nav { display: flex; gap: 2px; margin-left: 8px; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 6px 10px; border-radius: 7px; font-size: 13.5px; }
.nav a:hover { background: var(--surface-2); color: var(--ink); }
.nav a[aria-current] { color: var(--ink); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); }
.top-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.icon-btn { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); background: var(--surface); border-radius: 8px; cursor: pointer; color: var(--ink-2); }
.icon-btn:hover { color: var(--ink); border-color: var(--line-strong); }
.btn { display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 13px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; font-weight: 500; font-size: 13.5px; white-space: nowrap; text-decoration: none; color: var(--ink); }
.btn:hover { border-color: var(--line-strong); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.primary:hover { opacity: .9; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* Page */
.wrap { max-width: 1240px; margin: 0 auto; padding-inline: 16px; padding-block: 24px 64px; display: grid; gap: 20px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.page-head h1 { margin: 0; font-size: 26px; line-height: 1.15; letter-spacing: -.025em; font-weight: 600; text-wrap: balance; }
.page-head p { margin: 4px 0 0; color: var(--ink-2); }
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-2); border: 1px solid var(--line); background: var(--surface); padding: 3px 9px; border-radius: 999px; white-space: nowrap; }
.dot-live { width: 7px; height: 7px; border-radius: 50%; background: var(--down); box-shadow: 0 0 0 3px color-mix(in srgb, var(--down) 20%, transparent); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px 0; flex-wrap: wrap; }
.card-title { font-size: 14px; font-weight: 600; margin: 0; letter-spacing: -.005em; }
.card-sub { font-size: 12.5px; color: var(--ink-3); margin: 0; }
.eyebrow { font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-3); font-weight: 500; }

/* KPI tiles */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.kpi { padding: 14px 16px 12px; display: grid; gap: 6px; position: relative; overflow: hidden; }
.kpi-top { display: flex; align-items: center; gap: 8px; }
.swatch { width: 9px; height: 9px; border-radius: 3px; flex: none; }
.kpi-name { font-size: 13px; color: var(--ink-2); font-weight: 500; }
.kpi-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.kpi-unit { margin-left: auto; font-size: 11.5px; color: var(--ink-3); white-space: nowrap; }
.kpi-val { font-size: 30px; font-weight: 500; line-height: 1.1; letter-spacing: -.03em; }
.kpi-val small { font-size: 15px; color: var(--ink-3); margin-left: 2px; font-weight: 400; }
.kpi-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 12px; color: var(--ink-3); }
.chg { display: inline-flex; align-items: center; gap: 3px; padding: 1px 7px; border-radius: 6px; font-family: var(--mono); font-size: 12px; font-weight: 500; }
.chg.up { color: var(--up); background: color-mix(in srgb, var(--up) 12%, transparent); }
.chg.down { color: var(--down); background: color-mix(in srgb, var(--down) 12%, transparent); }
.chg.flat { color: var(--ink-3); background: var(--surface-2); }
.spark { height: 38px; margin: 2px -4px -2px; }

/* Chart + panel */
.main-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 12px; align-items: start; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px 16px 0; }
.seg { display: inline-flex; background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px; padding: 2px; }
.seg button { border: 0; background: transparent; padding: 4px 10px; border-radius: 6px; cursor: pointer; font-size: 12.5px; color: var(--ink-2); font-weight: 500; }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 0 0 1px var(--line), 0 1px 2px rgba(0,0,0,.06); }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); cursor: pointer; font-size: 12.5px; color: var(--ink-2); font-weight: 500; }
.chip[aria-pressed="false"] { opacity: .55; }
.chip[aria-pressed="false"] .swatch { background: transparent !important; box-shadow: inset 0 0 0 1.5px var(--ink-3); }
.chip:hover { border-color: var(--line-strong); }
.spacer { flex: 1; }
.chart { height: 440px; width: 100%; }
.chart-foot { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; padding: 0 16px 14px; font-size: 12px; color: var(--ink-3); }
.legend-item { display: inline-flex; gap: 6px; align-items: center; }
.lg-line { width: 16px; border-top: 1.5px dashed var(--event); }
.lg-line.solid { border-top-style: solid; }
.link-btn { background: none; border: 0; padding: 0; color: var(--ink-2); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; font-size: 12px; }

.panel { padding: 16px; display: grid; gap: 14px; position: sticky; top: 72px; }
.panel h3 { margin: 0; font-size: 17px; line-height: 1.3; letter-spacing: -.015em; font-weight: 600; text-wrap: balance; }
.panel p { margin: 0; color: var(--ink-2); font-size: 13.5px; }
.tag-row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.tag { font-size: 11px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; padding: 2px 7px; border-radius: 5px; background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line); }
.tag.warn { color: #9a5b00; background: color-mix(in srgb, #fab219 18%, transparent); border-color: color-mix(in srgb, #fab219 40%, transparent); }
:root[data-theme="dark"] .tag.warn { color: #fbbf24; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .tag.warn { color: #fbbf24; } }
.impact { display: grid; gap: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.impact-row { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; padding: 8px 12px; font-size: 13px; }
.impact-row + .impact-row { border-top: 1px solid var(--line); }
.impact-row .lbl { color: var(--ink-2); }
.panel-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.hint { font-size: 12px; color: var(--ink-3); }
.research { border: 1px dashed var(--line-strong); border-radius: 8px; padding: 12px; display: grid; gap: 8px; background: var(--surface-2); }
.research b { font-weight: 600; font-size: 13px; }


/* Pass-through */
.pt-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.finding { padding: 14px 16px; display: grid; gap: 4px; align-content: start; }
.finding .big { font-size: 26px; font-weight: 500; letter-spacing: -.03em; line-height: 1.15; }
.finding .big small { font-size: 14px; color: var(--ink-3); font-weight: 400; margin-left: 4px; letter-spacing: 0; }
.finding p { margin: 0; font-size: 13px; color: var(--ink-2); }
.pt-charts { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 12px; }
.pt-chart { height: 320px; }
.method { padding: 0 16px 14px; font-size: 12.5px; color: var(--ink-3); }
.method summary { cursor: pointer; color: var(--ink-2); }
.method p { margin: 8px 0 0; max-width: 72ch; }
@media (max-width: 1020px) { .pt-charts { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 760px) { .pt-grid { grid-template-columns: minmax(0, 1fr); } .pt-chart { height: 280px; } }

/* Timeline */
.tl-wrap { padding: 4px 16px 8px; }
.tl { list-style: none; margin: 0; padding: 0; }
.tl-year { font-family: var(--mono); font-size: 12px; color: var(--ink-3); padding: 14px 0 6px; border-bottom: 1px solid var(--line); position: sticky; top: 0; }
.tl-item { display: grid; grid-template-columns: 76px minmax(0, 1fr) auto; gap: 14px; align-items: start; padding: 11px 6px; border-bottom: 1px solid var(--line); cursor: pointer; border-radius: 6px; }
.tl-item:hover { background: var(--surface-2); }
.tl-item[aria-selected="true"] { background: var(--surface-2); box-shadow: inset 2px 0 0 var(--ink); }
.tl-date { font-family: var(--mono); font-size: 12.5px; color: var(--ink-2); padding-top: 1px; }
.tl-title { font-weight: 500; font-size: 13.5px; }
.tl-desc { font-size: 12.5px; color: var(--ink-3); margin-top: 2px; }
.tl-imp { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.mini { display: inline-flex; align-items: center; gap: 5px; font-family: var(--mono); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.mini i { width: 7px; height: 7px; border-radius: 2px; display: inline-block; }
.tl-scroll { max-height: 520px; overflow: auto; }

/* Counties */
.county-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 0; }
.map { height: 470px; }
.ctable-wrap { border-left: 1px solid var(--line); max-height: 470px; overflow: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 500; color: var(--ink-3); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; padding: 8px 14px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--surface); }
td { padding: 8px 14px; border-bottom: 1px solid var(--line); }
td.r, th.r { text-align: right; }
tr.hl td { background: var(--surface-2); }
.bar { display: inline-block; height: 6px; border-radius: 3px; background: var(--petrol); vertical-align: middle; opacity: .8; }

/* Report form */
.report-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; align-items: start; }
.form { padding: 16px; display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 12.5px; font-weight: 500; color: var(--ink-2); }
.input { height: 38px; border: 1px solid var(--line); border-radius: 8px; padding: 0 11px; background: var(--surface); width: 100%; }
.input:focus { outline: 2px solid var(--focus); outline-offset: -1px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.price-in { position: relative; }
.price-in .input { padding-right: 70px; font-family: var(--mono); font-size: 15px; }
.price-in span { position: absolute; right: 11px; top: 50%; transform: translateY(-50%); color: var(--ink-3); font-size: 12.5px; }
.stations { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.station { display: flex; align-items: center; gap: 10px; padding: 9px 12px; cursor: pointer; font-size: 13px; border: 0; background: var(--surface); width: 100%; text-align: left; }
.station + .station { border-top: 1px solid var(--line); }
.station:hover { background: var(--surface-2); }
.station[aria-checked="true"] { background: var(--surface-2); box-shadow: inset 2px 0 0 var(--ink); }
.station .meta { margin-left: auto; color: var(--ink-3); font-size: 12px; }
.recent { padding: 4px 0; }
.recent-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 9px 16px; border-top: 1px solid var(--line); font-size: 13px; }
.recent-row .where { color: var(--ink-3); font-size: 12px; }
.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 9px; font-size: 13.5px; box-shadow: 0 8px 24px rgba(0,0,0,.18); z-index: 50; }

.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.section-head h2 { margin: 0; font-size: 19px; letter-spacing: -.02em; font-weight: 600; }
.section-head p { margin: 2px 0 0; color: var(--ink-3); font-size: 13px; }

footer { max-width: 1240px; margin: 0 auto; padding-inline: 16px; padding-block: 0 48px; color: var(--ink-3); font-size: 12px; display: grid; gap: 6px; }
footer a { color: var(--ink-2); }

.table-view { padding: 0 16px 16px; overflow-x: auto; }

@media (max-width: 1020px) {
  .main-grid { grid-template-columns: minmax(0, 1fr); }
  .panel { position: static; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .nav { display: none; }
  .county-grid, .report-grid { grid-template-columns: minmax(0, 1fr); }
  .ctable-wrap { border-left: 0; border-top: 1px solid var(--line); max-height: 360px; }
  .map { height: 380px; }
  .chart { height: 340px; }
  .page-head h1 { font-size: 22px; }
  .tl-item { grid-template-columns: 64px minmax(0, 1fr); }
  .tl-imp { grid-column: 2; justify-content: flex-start; }
}
@media (max-width: 440px) {
  .kpi-val { font-size: 25px; }
  .kpis { gap: 8px; }
  .kpi { padding: 12px; }
  .kpi-unit { display: none; }
  .top-actions .btn span { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* States */
.empty { padding: 28px 16px; text-align: center; color: var(--ink-3); font-size: 13px; display: grid; gap: 6px; justify-items: center; }
.empty b { color: var(--ink-2); font-weight: 500; font-size: 13.5px; }
.skeleton { background: linear-gradient(90deg, var(--surface-2), var(--line), var(--surface-2)); background-size: 200% 100%; animation: shimmer 1.4s infinite linear; border-radius: 6px; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.error-banner { border: 1px solid color-mix(in srgb, var(--up) 40%, transparent); background: color-mix(in srgb, var(--up) 8%, var(--surface)); color: var(--ink); border-radius: var(--r); padding: 12px 14px; font-size: 13.5px; }
.field-error { color: var(--up); font-size: 12.5px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.period-note { font-size: 12px; color: var(--ink-3); padding: 0 16px 10px; }
.station-more { padding: 8px 12px; font-size: 12px; color: var(--ink-3); border-top: 1px solid var(--line); background: var(--surface); }
.stations:empty { display: none; }
.tl-more { display: flex; justify-content: center; padding: 10px; }

/* Legends drawn in HTML from the same tokens as the series */
.legend-row { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 10px 16px 0; font-size: 12px; color: var(--ink-2); }
.lg-icon { width: 12px; height: 12px; color: var(--ink-2); flex: none; }
.lg-stroke { width: 18px; height: 0; border-top: 2.5px solid currentColor; flex: none; }
.lg-stroke.dashed { border-top-style: dashed; }
.lg-fill { width: 14px; height: 10px; border-radius: 2px; flex: none; }
.seg button[disabled] { opacity: .4; cursor: not-allowed; }