:root {
  --oil-amber: #f1a33b;
  --oil-amber-soft: #ffd28d;
  --oil-teal: #35b6aa;
  --oil-ink: #0c1110;
  --oil-panel: #151c1a;
  --oil-line: rgba(255,255,255,.1);
}

body { background: #080b0a; }
.oil-app { max-width: 1180px; background: var(--oil-ink); }
.oil-page { padding: 18px; background: var(--oil-ink) !important; }
.oil-navbar { background: rgba(12,17,16,.92); backdrop-filter: blur(18px); }

.oil-hero {
  min-height: 500px;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  align-items: center;
  gap: clamp(28px, 6vw, 76px);
  padding: clamp(34px, 7vw, 82px);
  border: 1px solid var(--oil-line);
  border-radius: 26px;
  color: #f7f4ed;
  background:
    linear-gradient(118deg, rgba(10,14,13,.98) 0 42%, rgba(13,25,22,.94) 100%),
    radial-gradient(circle at 85% 10%, rgba(53,182,170,.2), transparent 34%);
  box-shadow: 0 28px 80px rgba(0,0,0,.38);
}
.oil-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(90deg, black, transparent 74%);
}
.oil-hero::after {
  content: "";
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  right: 12%;
  top: 10%;
  background: radial-gradient(circle at 35% 30%, rgba(255,210,141,.2), rgba(241,163,59,.04) 42%, transparent 65%);
  filter: blur(2px);
}
.hero-orbit { position: absolute; border: 1px solid rgba(241,163,59,.18); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 380px; height: 380px; right: -120px; top: -130px; }
.orbit-two { width: 230px; height: 230px; right: -55px; top: -55px; }

.oil-hero-copy, .quote-rack { position: relative; z-index: 2; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: var(--oil-amber-soft); font-size: 11px; font-weight: 700; letter-spacing: .18em; }
.live-pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--oil-teal); box-shadow: 0 0 0 5px rgba(53,182,170,.12); animation: oilPulse 1.8s ease-in-out infinite; }
@keyframes oilPulse { 50% { box-shadow: 0 0 0 9px rgba(53,182,170,0); } }
.oil-hero h2 { margin: 26px 0 20px; font-size: clamp(42px, 5vw, 72px); line-height: .98; letter-spacing: -.055em; font-weight: 760; }
.oil-hero h2 span { color: var(--oil-amber); }
.oil-hero-copy > p { max-width: 520px; color: #aeb8b3; font-size: 15px; line-height: 1.85; }
.hero-meta { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--oil-line); display: flex; justify-content: space-between; gap: 16px; color: #718078; font-size: 10px; letter-spacing: .12em; }

.quote-rack { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: stretch; }
.oil-quote {
  min-width: 0;
  padding: 21px;
  border: 1px solid var(--oil-line);
  border-radius: 18px;
  background: rgba(255,255,255,.055);
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 48px rgba(0,0,0,.2);
}
.oil-quote-wti { border-top: 2px solid var(--oil-amber); }
.oil-quote-brent { border-top: 2px solid var(--oil-teal); transform: translateY(28px); }
.quote-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.quote-head span { color: #77867e; font-size: 9px; letter-spacing: .11em; }
.quote-head h3 { margin-top: 5px; font-size: 18px; letter-spacing: .08em; }
.quote-market { padding: 6px 8px; border: 1px solid var(--oil-line); border-radius: 99px; white-space: nowrap; }
.quote-price { margin: 30px 0 10px; display: flex; align-items: flex-start; gap: 4px; font-variant-numeric: tabular-nums; }
.quote-price .currency { margin-top: 7px; color: #7d8983; font-size: 18px; }
.quote-price strong { font-size: clamp(34px, 4.6vw, 55px); line-height: 1; letter-spacing: -.045em; }
.quote-move { display: inline-flex; padding: 6px 9px; border-radius: 7px; background: rgba(255,255,255,.06); font-size: 11px; font-weight: 700; }
.quote-move.up { color: #fe7d73; background: rgba(254,125,115,.1); }
.quote-move.down { color: #4cd5b6; background: rgba(76,213,182,.1); }
.quote-move.flat { color: #a7b1ac; }
.quote-foot { margin-top: 26px; padding-top: 12px; border-top: 1px solid var(--oil-line); display: flex; justify-content: space-between; gap: 10px; color: #718078; font-size: 9px; }
.quote-foot b { color: #b4beb9; font-weight: 600; }
.spread-strip { grid-column: 1 / -1; margin-top: 28px; padding: 18px 20px; display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 20px; border: 1px solid rgba(241,163,59,.18); border-radius: 14px; background: rgba(241,163,59,.055); }
.spread-strip > div { display: flex; flex-direction: column; gap: 6px; }
.spread-strip span { color: var(--oil-amber-soft); font-size: 9px; letter-spacing: .12em; }
.spread-strip strong { font-size: 27px; }
.spread-strip p { color: #8d9a93; font-size: 12px; line-height: 1.65; }

.oil-footer { padding: 0 22px 28px; display: flex; justify-content: space-between; gap: 18px; color: #5f6c65; font-size: 10px; }
.oil-footer strong { color: var(--oil-amber); letter-spacing: .12em; }

.market-tape { margin: 14px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--oil-line); border-radius: 18px; overflow: hidden; background: #111614; color: #f4f1e9; }
.market-tape article { min-width: 0; padding: 18px 20px; border-right: 1px solid var(--oil-line); }
.market-tape article:last-child { border-right: 0; }
.market-tape span, .market-tape small { display: block; color: #738079; font-size: 9px; letter-spacing: .08em; }
.market-tape strong { display: block; margin: 8px 0 5px; font-size: clamp(17px, 2.2vw, 24px); font-variant-numeric: tabular-nums; white-space: nowrap; }
.market-tape strong.up { color: #fe7d73; }.market-tape strong.down { color: #4cd5b6; }

.oil-workbench, .signal-section, .benchmark-section, .reading-section, .source-section { margin-top: 16px; padding: clamp(24px, 5vw, 54px); border: 1px solid var(--border); border-radius: 24px; background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.section-kicker { color: var(--oil-amber); font-size: 9px; font-weight: 750; letter-spacing: .17em; }
.workbench-head, .section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.workbench-head > div:first-child, .section-heading > div { max-width: 690px; }
.workbench-head h2, .section-heading h2, .mini-heading h2, .source-section h2 { margin: 8px 0 9px; font-size: clamp(25px, 3vw, 38px); letter-spacing: -.04em; line-height: 1.08; }
.workbench-head p, .section-heading p, .mini-heading p, .source-section p { color: var(--muted); font-size: 12px; line-height: 1.75; }
.section-index { color: color-mix(in srgb, var(--oil-amber) 62%, transparent); font-size: 48px; font-weight: 760; line-height: 1; letter-spacing: -.06em; }
.range-switch { flex: 0 0 auto; display: flex; gap: 3px; padding: 3px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface2); }
.range-switch button { border: 0; border-radius: 7px; padding: 7px 10px; color: var(--muted); background: transparent; font: 650 10px/1 -apple-system, BlinkMacSystemFont, sans-serif; cursor: pointer; }
.range-switch button.is-active { color: #18130b; background: var(--oil-amber); }
.range-switch button:focus-visible, .text-link:focus-visible, .source-links a:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--oil-teal); outline-offset: 2px; }
.chart-shell { position: relative; margin-top: 30px; min-height: 360px; border: 1px solid var(--border); border-radius: 18px; padding: 18px; background: color-mix(in srgb, var(--surface2) 58%, transparent); }
.chart-legend { height: 24px; display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: 9px; letter-spacing: .1em; }
.chart-legend span::before { content: ""; display: inline-block; width: 18px; height: 2px; margin-right: 7px; vertical-align: middle; background: currentColor; }
.legend-wti { color: var(--oil-amber); }.legend-brent { color: var(--oil-teal); }
.chart-legend b { margin-left: auto; color: var(--muted); font-weight: 500; letter-spacing: 0; }
#oilHistoryChart { display: block; width: 100%; height: 310px; }
.chart-empty { position: absolute; inset: 60px 18px 18px; display: grid; place-items: center; color: var(--muted); font-size: 12px; text-align: center; }
.chart-empty[hidden] { display: none; }
.chart-caption { margin-top: 10px; display: flex; justify-content: space-between; gap: 18px; color: var(--muted); font-size: 9px; }

.driver-grid { margin-top: 30px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.driver-card { position: relative; min-height: 205px; padding: 22px; overflow: hidden; border: 1px solid var(--border); border-radius: 16px; background: var(--surface2); }
.driver-card::after { content: ""; position: absolute; right: -34px; bottom: -34px; width: 92px; height: 92px; border-radius: 50%; border: 18px solid color-mix(in srgb, var(--driver-color) 12%, transparent); }
.driver-card > span { color: var(--driver-color); font-size: 8px; font-weight: 750; letter-spacing: .14em; }
.driver-card h3 { margin: 18px 0 9px; font-size: 16px; }
.driver-card p { color: var(--muted); font-size: 11px; line-height: 1.7; }
.driver-card small { position: absolute; left: 22px; right: 22px; bottom: 18px; padding-top: 10px; border-top: 1px solid var(--border); color: var(--faint); font-size: 8.5px; }
.driver-supply { --driver-color: #f1a33b; }.driver-stock { --driver-color: #4aaed0; }.driver-demand { --driver-color: #d87777; }.driver-refine { --driver-color: #9f85d8; }.driver-macro { --driver-color: #57b393; }.driver-risk { --driver-color: #cf7856; }

.benchmark-grid { margin-top: 30px; display: grid; grid-template-columns: 1fr 110px 1fr; align-items: stretch; gap: 12px; }
.benchmark-card { padding: 26px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface2); }
.benchmark-wti { border-top: 3px solid var(--oil-amber); }.benchmark-brent { border-top: 3px solid var(--oil-teal); }
.benchmark-code { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.benchmark-code span { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 50%; color: var(--muted); font: 700 10px/1 ui-monospace, monospace; }
.benchmark-code strong { font-size: 23px; letter-spacing: .08em; }
.benchmark-card dl { display: grid; gap: 0; }
.benchmark-card dl div { padding: 11px 0; display: grid; grid-template-columns: 90px 1fr; gap: 15px; border-top: 1px solid var(--border); }
.benchmark-card dt { color: var(--faint); font-size: 9px; }.benchmark-card dd { color: var(--muted); font-size: 10px; line-height: 1.55; }
.benchmark-versus { align-self: center; text-align: center; }
.benchmark-versus span, .benchmark-versus small { display: block; color: var(--faint); font-size: 8px; letter-spacing: .1em; }
.benchmark-versus strong { display: block; margin: 8px 0; color: var(--oil-amber); font-size: 20px; }
.benchmark-note { margin-top: 12px; padding: 14px 16px; border-left: 2px solid var(--oil-amber); background: color-mix(in srgb, var(--oil-amber) 7%, transparent); color: var(--muted); font-size: 10px; line-height: 1.7; }

.decision-grid { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.calendar-card, .converter-card { padding: clamp(24px, 4vw, 42px); border: 1px solid var(--border); border-radius: 24px; background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.release-list { margin: 24px 0; list-style: none; }
.release-list li { padding: 13px 0; display: grid; grid-template-columns: 58px 1fr; gap: 15px; border-top: 1px solid var(--border); }
.release-list time { color: var(--oil-amber); font-size: 10px; font-weight: 700; }
.release-list strong, .release-list span { display: block; }.release-list strong { font-size: 11px; }.release-list span { margin-top: 4px; color: var(--muted); font-size: 9px; line-height: 1.55; }
.text-link { color: var(--oil-teal); font-size: 10px; text-decoration: none; }
.converter-form { margin: 24px 0 16px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 10px; }
.converter-form label { color: var(--muted); font-size: 9px; }
.converter-form input, .converter-form select { width: 100%; margin-top: 7px; padding: 11px 12px; border: 1px solid var(--border); border-radius: 9px; color: var(--text); background: var(--surface2); font: 650 13px/1 -apple-system, sans-serif; }
.converter-output { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.converter-output div { min-width: 0; padding: 16px 12px; border-right: 1px solid var(--border); }
.converter-output div:last-child { border-right: 0; }
.converter-output span, .converter-output strong { display: block; }.converter-output span { color: var(--faint); font-size: 8px; }.converter-output strong { margin-top: 7px; font-size: clamp(12px, 1.5vw, 17px); overflow-wrap: anywhere; }
.converter-note { display: block; margin-top: 13px; color: var(--faint); font-size: 8.5px; line-height: 1.6; }

.reading-steps { margin-top: 28px; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.reading-steps li { min-height: 188px; padding: 20px; border: 1px solid var(--border); border-radius: 15px; background: var(--surface2); }
.reading-steps li > span { color: var(--oil-amber); font: 700 9px/1 ui-monospace, monospace; }
.reading-steps h3 { margin: 30px 0 9px; font-size: 13px; }.reading-steps p { color: var(--muted); font-size: 10px; line-height: 1.7; }
.source-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: center; }
.source-links { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.source-links a { padding: 15px; border: 1px solid var(--border); border-radius: 12px; color: inherit; text-decoration: none; background: var(--surface2); transition: border-color .2s ease, transform .2s ease; }
.source-links a:hover { border-color: color-mix(in srgb, var(--oil-amber) 50%, var(--border)); transform: translateY(-1px); }
.source-links strong, .source-links span { display: block; }.source-links strong { font-size: 11px; }.source-links span { margin-top: 5px; color: var(--muted); font-size: 8px; }

.data-section, .compact-converter { margin-top: 16px; padding: clamp(24px, 4vw, 42px); border: 1px solid var(--border); border-radius: 24px; background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.contract-table { margin-top: 22px; overflow-x: auto; border: 1px solid var(--border); border-radius: 14px; }
.contract-row { min-width: 620px; display: grid; grid-template-columns: 1.1fr .7fr 1.2fr 1fr 1fr; align-items: center; }
.contract-row > * { min-width: 0; padding: 14px 16px; border-right: 1px solid var(--border); color: var(--muted); font-size: 10px; }
.contract-row > *:last-child { border-right: 0; }
.contract-row + .contract-row { border-top: 1px solid var(--border); }
.contract-row strong { color: var(--text); font-size: 12px; }
.contract-head { background: var(--surface2); }
.contract-head span { color: var(--faint); font-size: 8px; letter-spacing: .08em; }
.compact-sources { grid-template-columns: 180px 1fr; padding-top: 30px; padding-bottom: 30px; }
.compact-sources .source-links { grid-template-columns: repeat(3, 1fr); }

:root[data-theme='light'] body { background: #ebe8e1; }
:root[data-theme='light'] .oil-app, :root[data-theme='light'] .oil-page { background: #f5f2eb !important; }
:root[data-theme='light'] .oil-navbar { background: rgba(255,255,255,.9); }
:root[data-theme='light'] .oil-hero { box-shadow: 0 24px 70px rgba(34,52,44,.14); }

@media (max-width: 820px) {
  .oil-page { padding: 10px; }
  .oil-hero { min-height: 0; grid-template-columns: 1fr; padding: 34px 20px 28px; border-radius: 20px; gap: 30px; }
  .oil-hero h2 { font-size: clamp(40px, 13vw, 58px); }
  .quote-rack { grid-template-columns: 1fr 1fr; }
  .oil-quote-brent { transform: none; }
  .spread-strip { margin-top: 0; }
  .market-tape { grid-template-columns: 1fr 1fr; }
  .market-tape article:nth-child(2) { border-right: 0; }.market-tape article:nth-child(-n+2) { border-bottom: 1px solid var(--oil-line); }
  .workbench-head, .section-heading { align-items: flex-start; flex-direction: column; }
  .driver-grid { grid-template-columns: 1fr 1fr; }
  .benchmark-grid { grid-template-columns: 1fr; }.benchmark-versus { padding: 4px 0; }
  .decision-grid { grid-template-columns: 1fr; }
  .reading-steps { grid-template-columns: 1fr 1fr; }
  .source-section { grid-template-columns: 1fr; }
  .compact-sources .source-links { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 520px) {
  .quote-rack { grid-template-columns: 1fr; }
  .oil-quote { padding: 18px; }
  .spread-strip { grid-column: auto; grid-template-columns: 1fr; gap: 8px; }
  .quote-price { margin-top: 22px; }
  .oil-footer { flex-direction: column; }
  .oil-workbench, .signal-section, .benchmark-section, .reading-section, .source-section, .calendar-card, .converter-card { padding: 22px 17px; border-radius: 19px; }
  .market-tape article { padding: 15px 13px; }
  .range-switch { width: 100%; }.range-switch button { flex: 1; }
  .chart-shell { min-height: 295px; padding: 13px; }.chart-legend b { display: none; }#oilHistoryChart { height: 245px; }
  .chart-caption { flex-direction: column; gap: 5px; }
  .driver-grid { grid-template-columns: 1fr; }.driver-card { min-height: 190px; }
  .converter-output { grid-template-columns: 1fr; }.converter-output div { border-right: 0; border-bottom: 1px solid var(--border); }.converter-output div:last-child { border-bottom: 0; }
  .reading-steps { grid-template-columns: 1fr; }.reading-steps li { min-height: 0; }.reading-steps h3 { margin-top: 20px; }
  .data-section, .compact-converter { padding: 22px 17px; border-radius: 19px; }
  .compact-sources .source-links { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { .live-pulse { animation: none; } }