:root {
  --bg: #f2ede3;
  --bg-raised: #faf6ee;
  --bg-soft: #e9dfd0;
  --ink: #17140f;
  --ink-2: #3f382e;
  --muted: #5f5548;
  --faint: #746858;
  --line: rgba(23, 20, 15, 0.13);
  --line-strong: rgba(23, 20, 15, 0.26);
  --accent: #a83a17;
  --accent-hover: #8f3011;
  --accent-ink: #fffaf2;
  --accent-soft: rgba(168, 58, 23, 0.09);
  --accent-wash: #f6ccba;
  --accent-wash-raised: #f9d9cb;
  --bar: #b09d84;
  --bar-hover: #95836b;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1240px;
  --pad: clamp(20px, 5vw, 64px);
  --nav: 64px;
}

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

html {
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 45% at 84% -8%, rgba(168, 58, 23, 0.09), transparent 70%),
    radial-gradient(ellipse 40% 40% at 0% 38%, rgba(255, 255, 255, 0.4), transparent 72%);
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

a {
  color: inherit;
}

button,
select {
  font: inherit;
  color: inherit;
}

svg {
  display: block;
  max-width: 100%;
}

p,
h1,
h2,
h3 {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

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

.grain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.028;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 300;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-160%);
}

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

/* ---------- navigation ---------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: rgba(242, 237, 227, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: var(--wrap);
  height: var(--nav);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 21px;
}

.brand-bars i {
  display: block;
  height: 3px;
  background: var(--ink);
}

.brand-bars i:nth-child(1) {
  width: 13px;
  background: var(--accent);
}

.brand-bars i:nth-child(2) {
  width: 21px;
}

.brand-bars i:nth-child(3) {
  width: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
}

.nav-links a {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 160ms ease;
}

.nav-links a:hover {
  color: var(--accent);
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  overflow: clip;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: end;
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(44px, 7vw, 92px) clamp(52px, 7vw, 92px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-number {
  margin: 0;
  color: var(--ink);
  font-size: clamp(4rem, 24vw, 10.5rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.085em;
  line-height: 0.82;
}

.hero-t {
  color: var(--accent);
}

.hero-lede {
  max-width: 24ch;
  margin: clamp(20px, 3vw, 30px) 0 0;
  color: var(--ink);
  font-size: clamp(1.25rem, 2.4vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.22;
}

.hero-body {
  max-width: 48ch;
  margin: 18px 0 0;
  color: var(--ink-2);
  font-size: 0.96rem;
  line-height: 1.65;
}

.hero-body b {
  color: var(--ink);
  font-weight: 600;
}

.hero-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
}

.year-toggle {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--bg-raised);
}

.year-toggle button {
  min-width: 62px;
  padding: 8px 12px;
  border: 0;
  border-radius: 1px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.year-toggle button:hover {
  color: var(--ink);
}

.year-toggle button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn {
  padding: 10px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.copy-status {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.hero-stats li {
  flex: 1 1 130px;
  padding: 16px 18px 0 0;
}

.hero-stats li + li {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.hero-stats b {
  display: block;
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero-stats span {
  display: block;
  margin-top: 5px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-panel {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--bg-raised);
  box-shadow: 0 22px 50px -40px rgba(23, 20, 15, 0.55);
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.panel-title {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.panel-note {
  margin: 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mini-chart {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 16px 0;
}

.mini-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 84px 62px;
  align-items: center;
  gap: 12px;
}

.mini-name {
  overflow: hidden;
  color: var(--ink-2);
  font-size: 0.8rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mini-row.is-ai .mini-name {
  color: var(--accent);
  font-weight: 600;
}

.mini-track {
  display: block;
  height: 8px;
  background: rgba(23, 20, 15, 0.08);
}

.mini-track i {
  display: block;
  height: 100%;
  background: var(--bar-hover);
}

.mini-row.is-ai .mini-track i {
  background: var(--accent);
}

.mini-value {
  color: var(--ink);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  text-align: right;
}

.panel-foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

/* ---------- strip ---------- */

.strip {
  border-block: 1px solid var(--line);
  background: var(--bg-raised);
}

.strip-inner {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.strip-item {
  padding: 18px 16px;
  border-right: 1px solid var(--line);
}

.strip-item:last-child {
  border-right: 0;
}

.strip-item b {
  display: block;
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.strip-item span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.35;
}

/* ---------- sections ---------- */

.section {
  padding-block: clamp(56px, 7vw, 108px);
  border-top: 1px solid var(--line);
}

.section-head {
  max-width: 64ch;
  margin-bottom: clamp(30px, 4vw, 52px);
}

.section-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.9rem, 4.2vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.section-note {
  max-width: 62ch;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.section-foot {
  max-width: 78ch;
  margin: 26px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.03em;
  line-height: 1.7;
  text-transform: uppercase;
}

.section-foot a {
  color: var(--muted);
  text-underline-offset: 2px;
}

.section-foot a:hover {
  color: var(--accent);
}

/* ---------- chart ---------- */

.chart {
  border-top: 1px solid var(--line-strong);
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(150px, 250px) minmax(0, 1fr) 148px;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.bar-head {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.bar-name {
  color: var(--ink-2);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.bar-tag {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.53rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bar-track {
  height: 12px;
  background: rgba(23, 20, 15, 0.07);
}

.bar-fill {
  display: block;
  width: 0;
  height: 100%;
  background: var(--bar-hover);
  transition: width 900ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.bar-fig {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.bar-fig b {
  color: var(--ink);
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.src-link {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.src-link:hover {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.bar-row.is-ai {
  margin-inline: -12px;
  padding-inline: 12px;
  border-radius: 3px;
  background: var(--accent-soft);
}

.bar-row.is-ai .bar-name {
  color: var(--accent);
  font-weight: 700;
}

.bar-row.is-ai .bar-tag {
  color: var(--muted);
}

.bar-row.is-ai .bar-fill {
  background: var(--accent);
}

.bar-row.is-ai .bar-fig b {
  color: var(--accent);
}

/* ---------- context ---------- */

.context-section {
  background: var(--bg-soft);
}

.context-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}

.context-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--bg-raised);
}

.context-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.context-top h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.context-top b {
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.context-note {
  margin: 14px 0 0;
  color: var(--ink-2);
  font-size: 0.85rem;
  line-height: 1.55;
}

.context-src {
  margin: 12px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------- compare ---------- */

.compare-section {
  background: var(--bg);
}

.compare-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: start;
  gap: clamp(28px, 4vw, 64px);
}

.compare-tool {
  padding: clamp(20px, 2.5vw, 30px);
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--bg-raised);
}

.compare-selects {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr);
  align-items: end;
  gap: 12px;
}

.field {
  display: block;
}

.field-label {
  display: block;
  margin-bottom: 6px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--bg);
  color: var(--ink);
  font-size: 0.86rem;
  cursor: pointer;
}

.swap {
  display: grid;
  place-items: center;
  width: 44px;
  height: 40px;
  margin-bottom: 1px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease;
}

.swap svg {
  width: 18px;
  height: 18px;
}

.swap:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.compare-result {
  margin: 24px 0 18px;
  color: var(--ink);
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.compare-result b {
  color: var(--accent);
  font-weight: 700;
}

.compare-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.compare-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 6px;
}

.compare-head span {
  color: var(--muted);
  font-size: 0.8rem;
}

.compare-head b {
  color: var(--ink);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.compare-row.is-ai .compare-head span,
.compare-row.is-ai .compare-head b {
  color: var(--accent);
}

.compare-row.is-ai .bar-fill {
  background: var(--accent);
}

.compare-note {
  margin: 20px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.04em;
  line-height: 1.65;
  text-transform: uppercase;
}

/* ---------- ledger ---------- */

.human-section {
  background: var(--bg-raised);
}

.ledger {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 30px);
}

.ledger-card {
  padding-top: 20px;
  border-top: 2px solid var(--accent);
}

.ledger-number {
  display: block;
  color: var(--accent);
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.ledger-unit {
  display: block;
  margin-top: 8px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ledger-title {
  margin: 16px 0 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.ledger-desc {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.ledger-cost {
  margin: 14px 0 0;
  color: var(--ink-2);
  font-size: 0.88rem;
  font-weight: 600;
}

.ledger-src {
  margin: 6px 0 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.54rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ---------- burn ---------- */

.burn-section {
  border-top: 0;
  background: var(--accent-wash);
}

.burn-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(28px, 4vw, 64px);
}

.burn-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: rgba(23, 20, 15, 0.7);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.live-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: live-pulse 1.6s ease-out infinite;
}

@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 rgba(168, 58, 23, 0.3); }
  70% { box-shadow: 0 0 0 8px rgba(168, 58, 23, 0); }
  100% { box-shadow: 0 0 0 0 rgba(168, 58, 23, 0); }
}

.burn-count {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.8rem, 8.5vw, 7rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.075em;
  line-height: 0.85;
}

.burn-line {
  max-width: 42ch;
  margin: 20px 0 0;
  color: rgba(23, 20, 15, 0.82);
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  line-height: 1.5;
}

.burn-line strong {
  color: var(--ink);
  font-weight: 600;
}

.burn-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid rgba(23, 20, 15, 0.2);
  background: rgba(23, 20, 15, 0.2);
}

.burn-stats > div {
  padding: 18px;
  background: var(--accent-wash-raised);
}

.burn-stats span {
  display: block;
  margin-bottom: 6px;
  color: rgba(23, 20, 15, 0.64);
  font-family: var(--font-mono);
  font-size: 0.54rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.burn-stats b {
  display: block;
  color: var(--ink);
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.035em;
  line-height: 1;
}

.burn-note {
  max-width: 70ch;
  margin: 26px 0 0;
  color: rgba(23, 20, 15, 0.68);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.04em;
  line-height: 1.7;
  text-transform: uppercase;
}

/* ---------- sources ---------- */

.sources-section {
  background: var(--bg);
}

.table-wrap {
  overflow-x: auto;
}

.source-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.source-table th,
.source-table td {
  padding: 11px 14px 11px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.source-table thead th {
  padding-bottom: 9px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.54rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.source-table tbody th {
  width: 42%;
  color: var(--ink-2);
  font-weight: 400;
  line-height: 1.4;
}

.source-table td {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.source-table td:nth-child(2) {
  width: 24%;
}

.source-table tr.is-ai th {
  color: var(--accent);
  font-weight: 600;
}

.source-table tr.is-ai td:nth-child(2) {
  color: var(--accent);
}

.source-table tr.group-row th {
  padding-top: 26px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.56rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- footer ---------- */

.site-footer {
  padding-block: 40px 28px;
  border-top: 1px solid var(--line);
  background: var(--bg-raised);
}

.footer-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.footer-brand p {
  max-width: 40ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.55;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  text-align: right;
}

.footer-meta p {
  margin: 0;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.05em;
  line-height: 1.6;
  text-transform: uppercase;
}

.back-top {
  margin-top: 6px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.back-top:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- reveal ---------- */

.js .hero-copy > *,
.js .hero-panel {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.js .hero-copy > *:nth-child(1) { transition-delay: 40ms; }
.js .hero-copy > *:nth-child(2) { transition-delay: 90ms; }
.js .hero-copy > *:nth-child(3) { transition-delay: 140ms; }
.js .hero-copy > *:nth-child(4) { transition-delay: 190ms; }
.js .hero-copy > *:nth-child(5) { transition-delay: 240ms; }
.js .hero-copy > *:nth-child(6) { transition-delay: 290ms; }
.js .hero-panel { transition-delay: 200ms; }

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.js .reveal.in,
.js .hero-copy > *,
.js .hero-panel {
  opacity: 1;
  transform: none;
}

.js #chart .bar-row {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 420ms ease, transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.js #chart.in .bar-row {
  opacity: 1;
  transform: none;
}

.js #chart .bar-row:nth-child(1) { transition-delay: 0ms; }
.js #chart .bar-row:nth-child(2) { transition-delay: 40ms; }
.js #chart .bar-row:nth-child(3) { transition-delay: 80ms; }
.js #chart .bar-row:nth-child(4) { transition-delay: 120ms; }
.js #chart .bar-row:nth-child(5) { transition-delay: 160ms; }
.js #chart .bar-row:nth-child(6) { transition-delay: 200ms; }
.js #chart .bar-row:nth-child(7) { transition-delay: 240ms; }
.js #chart .bar-row:nth-child(8) { transition-delay: 280ms; }
.js #chart .bar-row:nth-child(n + 9) { transition-delay: 320ms; }

.js #chart.in .bar-fill,
.js .context-grid.in .bar-fill,
.js .compare-bars .bar-fill {
  width: var(--w);
}

.js .context-grid .context-card,
.js .ledger .ledger-card {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 500ms ease, transform 500ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.js .context-grid.in .context-card,
.js .ledger.in .ledger-card {
  opacity: 1;
  transform: none;
}

.js .context-grid .context-card:nth-child(2) { transition-delay: 90ms; }
.js .context-grid .context-card:nth-child(3) { transition-delay: 180ms; }
.js .ledger .ledger-card:nth-child(2) { transition-delay: 80ms; }
.js .ledger .ledger-card:nth-child(3) { transition-delay: 160ms; }
.js .ledger .ledger-card:nth-child(4) { transition-delay: 240ms; }

/* ---------- sharing ---------- */

.share {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.share-label {
  margin: 0 0 12px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 8px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.share-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.share-status {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-share {
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

/* ---------- responsive ---------- */

@media (max-width: 1040px) {
  .hero-grid,
  .compare-grid,
  .burn-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-grid {
    gap: 40px;
  }

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

  .context-grid .context-card:last-child {
    grid-column: span 2;
  }

  .ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 24px;
  }

  .strip-inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .strip-item:nth-child(4n) {
    border-right: 0;
  }

  .strip-item:nth-child(n + 5) {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 860px) {
  .bar-row {
    grid-template-columns: minmax(0, 1fr) 128px;
    gap: 6px 18px;
  }

  .bar-track {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .bar-fig {
    grid-column: 2;
    grid-row: 1;
  }
}

@media (max-width: 720px) {
  :root {
    --nav: 56px;
  }

  .nav-inner {
    gap: 12px;
  }

  .nav-links {
    gap: 14px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    font-size: 0.55rem;
  }

  .hero-grid {
    padding-block: 34px 44px;
  }

  .hero-number {
    font-size: clamp(4rem, 24vw, 7rem);
  }

  .hero-t {
  color: var(--accent);
}

.hero-lede {
    font-size: 1.2rem;
  }

  .hero-body {
    font-size: 0.92rem;
  }

  .hero-stats li {
    flex: 1 1 100px;
    padding: 14px 12px 0 0;
  }

  .hero-stats li + li {
    padding-left: 12px;
  }

  .hero-stats b {
    font-size: 1.15rem;
  }

  .hero-panel {
    padding: 18px;
  }

  .mini-row {
    grid-template-columns: minmax(0, 1fr) 60px 58px;
    gap: 10px;
  }

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

  .strip-item {
    border-right: 1px solid var(--line);
    border-top: 1px solid var(--line);
  }

  .strip-item:nth-child(2n) {
    border-right: 0;
  }

  .strip-item:nth-child(-n + 2) {
    border-top: 0;
  }

  .section h2 {
    font-size: clamp(1.8rem, 8.5vw, 2.6rem);
  }

  .bar-name {
    font-size: 0.86rem;
  }

  .bar-fig b {
    font-size: 0.88rem;
  }

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

  .context-grid .context-card:last-child {
    grid-column: auto;
  }

  .ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 18px;
  }

  .ledger-number {
    font-size: clamp(2.4rem, 11vw, 3.4rem);
  }

  .ledger-desc {
    font-size: 0.8rem;
  }

  .compare-selects {
    grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr);
    gap: 8px;
  }

  .field select {
    padding: 9px 8px;
    font-size: 0.76rem;
  }

  .compare-result {
    font-size: 1.35rem;
  }

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

  .burn-stats > div {
    padding: 14px;
  }

  .burn-stats b {
    font-size: 1.4rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 22px;
  }

  .footer-meta {
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 560px) {
  .brand > span:last-child {
    display: none;
  }

  .compare-selects {
    grid-template-columns: minmax(0, 1fr);
  }

  .swap {
    justify-self: center;
    margin: 2px 0;
  }

  .field select {
    padding: 11px 12px;
    font-size: 0.86rem;
  }

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

  .source-table thead {
    display: none;
  }

  .source-table,
  .source-table tbody,
  .source-table tr,
  .source-table th,
  .source-table td {
    display: block;
    width: 100%;
  }

  .source-table tr {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }

  .source-table th,
  .source-table td {
    padding: 0;
    border: 0;
  }

  .source-table tbody th {
    width: 100%;
    padding-right: 0;
  }

  .source-table td:nth-child(2) {
    margin-top: 4px;
    color: var(--faint);
    font-size: 0.68rem;
  }

  .source-table td:last-child {
    margin-top: 6px;
  }

  .source-table tr.group-row {
    padding-top: 24px;
    border-bottom: 1px solid var(--line-strong);
  }

  .source-table tr.group-row th {
    padding: 0 0 9px;
  }
}

@media (max-width: 400px) {
  .nav-links {
    gap: 10px;
  }

  .nav-links a {
    font-size: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .hero-copy > *,
  .js .hero-panel,
  .js .reveal,
  .js #chart .bar-row,
  .js .context-grid .context-card,
  .js .ledger .ledger-card {
    opacity: 1;
    transform: none;
  }

  .js #chart .bar-fill,
  .js .compare-bars .bar-fill {
    width: var(--w);
  }
}

@media print {
  .scroll-progress,
  .skip-link,
  .site-nav,
  .hero-controls,
  .compare-tool,
  .grain {
    display: none !important;
  }

  .section {
    break-inside: avoid;
  }

  .js #chart .bar-fill,
  .js .compare-bars .bar-fill {
    width: var(--w) !important;
  }
}