/* tax-ie — narrative front end. Light and dark via custom properties. */

:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: light;

  --bg: #fbfbfd;
  --bg-elev: #ffffff;
  --bg-bar: rgba(251, 251, 253, 0.78);
  --ink: #101012;
  --ink-2: #4b4b50;
  --ink-3: #6b6b72;
  --rule: rgba(0, 0, 0, 0.10);
  --rule-soft: rgba(0, 0, 0, 0.06);
  --track: rgba(0, 0, 0, 0.055);
  --accent: #b23a10;
  --accent-ink: #ffffff;
  --accent-soft: rgba(178, 58, 16, 0.09);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.05), 0 18px 50px rgba(0, 0, 0, 0.10);

  --pad: clamp(1.25rem, 5vw, 4.5rem);
  --measure: 1080px;

  --t-display: clamp(3.25rem, 14vw, 8.5rem);
  --t-h2: clamp(2rem, 6vw, 4rem);
  --t-fact: clamp(2.25rem, 7vw, 4.25rem);
  --t-h3: clamp(1.25rem, 2.6vw, 1.625rem);
  --t-lede: clamp(1.125rem, 2.3vw, 1.5rem);
  --t-body: clamp(1rem, 1.3vw, 1.0625rem);
  --t-small: 0.9375rem;
  --t-micro: 0.8125rem;

  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --dur: 620ms;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #08080a;
  --bg-elev: #141417;
  --bg-bar: rgba(12, 12, 14, 0.74);
  --ink: #f5f5f7;
  --ink-2: #b9b9c0;
  --ink-3: #9a9aa2;
  --rule: rgba(255, 255, 255, 0.14);
  --rule-soft: rgba(255, 255, 255, 0.08);
  --track: rgba(255, 255, 255, 0.10);
  --accent: #ff8a5f;
  --accent-ink: #1a0a03;
  --accent-soft: rgba(255, 138, 95, 0.14);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 18px 50px rgba(0, 0, 0, 0.6);
}

/* One categorical ramp for the allocation. Every step is distinct in both
   themes, and the legend prints the label, amount and share for each. */
.ramp-0 { --ramp: #9e3410; }
.ramp-1 { --ramp: #c2571f; }
.ramp-2 { --ramp: #d98a1f; }
.ramp-3 { --ramp: #b0a12b; }
.ramp-4 { --ramp: #5f8f4a; }
.ramp-5 { --ramp: #2f8f80; }
.ramp-6 { --ramp: #3f77b5; }
.ramp-7 { --ramp: #6b5bb0; }
:root[data-theme="dark"] .ramp-0 { --ramp: #ff8a5f; }
:root[data-theme="dark"] .ramp-1 { --ramp: #ffa872; }
:root[data-theme="dark"] .ramp-2 { --ramp: #f0c46a; }
:root[data-theme="dark"] .ramp-3 { --ramp: #d8d07a; }
:root[data-theme="dark"] .ramp-4 { --ramp: #9fd28a; }
:root[data-theme="dark"] .ramp-5 { --ramp: #6fd2c0; }
:root[data-theme="dark"] .ramp-6 { --ramp: #7fb4f0; }
:root[data-theme="dark"] .ramp-7 { --ramp: #b0a6f2; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--t-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-bottom: calc(7.5rem + env(safe-area-inset-bottom, 0px));
}
body.sheet-open { overflow: hidden; }

h1, h2, h3, p, ul, ol, dl, dd, figure, fieldset, legend { margin: 0; }
fieldset { border: 0; padding: 0; min-width: 0; }
legend { padding: 0; }
ul, ol { list-style: none; padding: 0; }
button, input, select { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { width: min(var(--measure), calc(100% - 2 * var(--pad))); margin-inline: auto; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

.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;
}

.skip {
  position: absolute; left: var(--pad); top: 0; z-index: 60;
  transform: translateY(-120%);
  background: var(--bg-elev); color: var(--ink); padding: 0.6rem 1rem;
  border-radius: 0 0 12px 12px; text-decoration: none; font-size: var(--t-small);
  box-shadow: var(--shadow);
}
.skip:focus { transform: translateY(0); }

/* ── top bar ───────────────────────────────────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.85rem var(--pad);
  background: var(--bg-bar);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
}
.top__mark {
  font-size: var(--t-micro); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600;
}
.top__mark b { color: var(--ink); font-weight: 600; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; padding: 0;
  border: 1px solid var(--rule-soft); border-radius: 999px; cursor: pointer;
  transition: background 220ms var(--ease), border-color 220ms var(--ease);
}
.icon-btn:hover { background: var(--accent-soft); border-color: var(--rule); }
.icon-btn svg { width: 1.05rem; height: 1.05rem; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
:root[data-theme="light"] .icon-btn .i-moon,
:root[data-theme="dark"] .icon-btn .i-sun { display: none; }

/* ── chapters ──────────────────────────────────────────────────────────── */
.chapter {
  min-height: 100vh;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-block: clamp(4rem, 11vh, 9rem);
}
.chapter--hero { padding-block: clamp(5rem, 14vh, 10rem); }

.eyebrow {
  font-size: var(--t-micro); letter-spacing: 0.16em; text-transform: uppercase;
  font-weight: 600; color: var(--accent); margin-bottom: clamp(1rem, 3vh, 2rem);
}
.h2 {
  font-size: var(--t-h2); line-height: 1.03; letter-spacing: -0.032em;
  font-weight: 650; text-wrap: balance; max-width: 22ch;
}
.lede {
  margin-top: clamp(1rem, 2.4vh, 1.75rem);
  font-size: var(--t-lede); line-height: 1.5; letter-spacing: -0.012em;
  color: var(--ink-2); max-width: 40ch; text-wrap: pretty;
}
.lede b { color: var(--ink); font-weight: 600; }

/* ── hero ──────────────────────────────────────────────────────────────── */
.hero__amount {
  font-size: var(--t-display); line-height: 0.9; letter-spacing: -0.05em;
  font-weight: 700; margin-block: clamp(0.5rem, 1.5vh, 1rem);
  display: flex; align-items: baseline; gap: 0.04em;
}
.hero__currency { font-size: 0.42em; font-weight: 600; color: var(--ink-3); letter-spacing: -0.02em; }
.hero__number { font-variant-numeric: tabular-nums; }
.hero__sentence {
  margin-top: clamp(1.5rem, 4vh, 2.5rem);
  font-size: var(--t-lede); line-height: 1.5; letter-spacing: -0.01em;
  color: var(--ink-2); max-width: 42ch; text-wrap: pretty;
}
.hero__sentence b { color: var(--ink); font-weight: 600; }
.hero__metrics {
  margin-top: clamp(1.25rem, 3vh, 2rem);
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.5rem 0.85rem;
  font-size: var(--t-small); color: var(--ink-3);
}
.hero__metrics b { color: var(--ink); font-weight: 650; }
.dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-3); align-self: center; }
.hero__foot {
  margin-top: clamp(2.5rem, 7vh, 4.5rem);
  display: flex; align-items: center; gap: 0.85rem;
  font-size: var(--t-micro); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3);
}
.cue { position: relative; display: block; width: 1px; height: 2.5rem; background: var(--rule); overflow: hidden; }
.cue::after {
  content: ""; position: absolute; inset-inline: 0; top: -60%; height: 60%;
  background: var(--accent); animation: cue 2200ms var(--ease) infinite;
}
@keyframes cue { 0% { top: -60%; } 60%, 100% { top: 100%; } }

/* ── charts (shared) ───────────────────────────────────────────────────── */
.chart { display: block; width: 100%; height: auto; overflow: visible; }
.chart text { font-family: var(--font); }
.track__track { fill: var(--track); }
.track__fill { fill: var(--accent); }
.track__fill--paid { fill: var(--accent); }
.track__fill--used { fill: var(--ink); opacity: 0.38; }

/* ── ladder ────────────────────────────────────────────────────────────── */
.ladder { margin-top: clamp(2.5rem, 6vh, 4rem); }
.ladder__bar { width: 100%; }
.stack__seg { fill: var(--accent); }
.stack__seg:nth-child(2) { fill: color-mix(in srgb, var(--accent) 72%, var(--bg-elev)); }
.stack__seg:nth-child(3) { fill: color-mix(in srgb, var(--accent) 48%, var(--bg-elev)); }
.ladder__rows { margin-top: clamp(1.75rem, 4.5vh, 2.75rem); display: grid; gap: clamp(1.25rem, 3vh, 2rem); }
.ladder__row { display: grid; gap: 0.55rem; }
.ladder__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.ladder__label { font-size: var(--t-h3); letter-spacing: -0.02em; font-weight: 600; }
.ladder__amount { font-size: var(--t-h3); letter-spacing: -0.02em; font-weight: 600; }
.ladder__meta {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  font-size: var(--t-small); color: var(--ink-3);
}
.ladder__track { width: 100%; }
.ladder__fill { fill: var(--accent); }

.chapter__foot {
  margin-top: clamp(2.5rem, 6vh, 4rem); padding-top: 1.25rem; border-top: 1px solid var(--rule-soft);
  font-size: var(--t-lede); letter-spacing: -0.01em; color: var(--ink-2); max-width: 34ch;
}
.chapter__foot b { color: var(--ink); font-weight: 600; }

/* ── facts ─────────────────────────────────────────────────────────────── */
.facts {
  margin-top: clamp(2.5rem, 7vh, 4.5rem);
  display: grid; gap: clamp(2.5rem, 6vw, 4rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
}
.fact { display: grid; align-content: start; gap: 0.6rem; }
.fact__eyebrow {
  font-size: var(--t-micro); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600;
}
.fact__number {
  font-size: var(--t-fact); line-height: 0.95; letter-spacing: -0.045em; font-weight: 700;
  color: var(--accent);
}
.fact__text { font-size: var(--t-body); line-height: 1.6; color: var(--ink-2); text-wrap: pretty; }
.fact__text b { color: var(--ink); font-weight: 600; }
.minor { margin-top: clamp(3rem, 8vh, 5rem); }
.minor__title { font-size: var(--t-micro); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; margin-bottom: 1rem; }
.minor__list { display: grid; gap: 0.15rem 2rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }
.minor__row {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  padding: 0.7rem 0; border-bottom: 1px solid var(--rule-soft); font-size: var(--t-small);
}
.minor__row span:first-child { color: var(--ink-2); }
.minor__row span:last-child { font-weight: 600; }
.minor__row[hidden] { display: none; }

/* ── ribbon ────────────────────────────────────────────────────────────── */
.ribbon { margin-top: clamp(2.5rem, 7vh, 4rem); width: 100%; }
.ribbon__seg { fill: var(--ramp); }
.ribbon__seg[data-dim] { opacity: 0.22; }
.ribbon__seg[data-active] { filter: brightness(1.12); }

.allocation { margin-top: clamp(2rem, 5vh, 3rem); display: grid; }
.allocation li { display: block; }
.allocation__row {
  width: 100%;
  display: grid; grid-template-columns: 0.75rem 1fr auto auto; align-items: center;
  gap: clamp(0.75rem, 2.5vw, 1.5rem);
  padding: 0.85rem 0.5rem; border-bottom: 1px solid var(--rule-soft);
  text-align: left; cursor: pointer;
  transition: background 200ms var(--ease);
}
.allocation__row:hover, .allocation__row:focus-visible { background: var(--accent-soft); }
.allocation__swatch { width: 0.75rem; height: 0.75rem; border-radius: 3px; background: var(--ramp); }
.allocation__label { font-size: var(--t-small); letter-spacing: -0.005em; }
.allocation__amount { font-size: var(--t-small); font-weight: 600; }
.allocation__figs { display: flex; flex-direction: column; align-items: flex-end; gap: 0.1rem; }
.allocation__perday { font-size: var(--t-micro); color: var(--ink-3); }
.allocation__share { font-size: var(--t-micro); color: var(--ink-3); min-width: 3.4em; text-align: right; }
.note {
  margin-top: clamp(2rem, 5vh, 3rem); padding-top: 1.25rem; border-top: 1px solid var(--rule-soft);
  font-size: var(--t-small); line-height: 1.6; color: var(--ink-3); max-width: 62ch; text-wrap: pretty;
}

/* ── compare ───────────────────────────────────────────────────────────── */
.compare { margin-top: clamp(2.5rem, 7vh, 4rem); display: grid; gap: clamp(2rem, 4.5vh, 3rem); }
.compare__row { display: grid; gap: 0.7rem; }
.compare__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.compare__label { font-size: var(--t-h3); font-weight: 600; letter-spacing: -0.02em; }
.compare__amount { font-size: var(--t-h3); font-weight: 600; letter-spacing: -0.02em; }
.compare__track { width: 100%; }
.statement {
  margin-top: clamp(2.5rem, 6vh, 4rem); font-size: var(--t-lede); line-height: 1.5;
  letter-spacing: -0.01em; color: var(--ink-2); max-width: 44ch; text-wrap: pretty;
}
.statement b { color: var(--ink); font-weight: 600; }
.aside {
  margin-top: clamp(2.5rem, 6vh, 4rem); padding: 1.5rem 1.75rem;
  background: var(--accent-soft); border-radius: 16px;
  font-size: var(--t-small); line-height: 1.65; color: var(--ink-2); max-width: 56ch; text-wrap: pretty;
}
.aside b { color: var(--ink); font-weight: 600; }

/* ── honest answer ─────────────────────────────────────────────────────── */
.answer { margin-top: clamp(2.5rem, 7vh, 4rem); display: grid; gap: clamp(2.5rem, 6vh, 4rem); }
.answer__prose { font-size: clamp(1.0625rem, 1.6vw, 1.25rem); line-height: 1.68; letter-spacing: -0.006em; color: var(--ink-2); max-width: 62ch; text-wrap: pretty; }
.answer__block h3 {
  font-size: var(--t-micro); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; margin-bottom: 1.1rem;
}
.caveats { display: grid; gap: 0.9rem; max-width: 62ch; }
.caveats li { position: relative; padding-left: 1.1rem; font-size: var(--t-small); line-height: 1.65; color: var(--ink-3); text-wrap: pretty; }
.caveats li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 5px; height: 1px; background: var(--ink-3); }
.caveats li[data-level="info"] { color: var(--ink-2); }
.caveats li[data-level="info"]::before { background: var(--accent); }

details.sources { border-top: 1px solid var(--rule-soft); padding-top: 1.25rem; }
details.sources summary {
  cursor: pointer; font-size: var(--t-small); color: var(--ink-2); font-weight: 500;
  list-style: none; display: flex; align-items: center; gap: 0.5rem;
}
details.sources summary::-webkit-details-marker { display: none; }
details.sources summary::before { content: "+"; color: var(--accent); font-weight: 600; width: 1ch; }
details.sources[open] summary::before { content: "–"; }
.sources__list { margin-top: 1.25rem; display: grid; gap: 0.85rem; }
.sources__list li { font-size: var(--t-micro); line-height: 1.55; color: var(--ink-3); }
.sources__list a { text-decoration-color: var(--rule); text-underline-offset: 3px; }
.sources__list b { color: var(--ink-2); font-weight: 500; }
.tag {
  display: inline-block; margin-left: 0.4rem; padding: 0.05rem 0.4rem;
  border: 1px solid var(--rule); border-radius: 999px; font-size: 0.6875rem;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3);
}

footer.colophon {
  padding-block: clamp(3rem, 8vh, 6rem) clamp(2rem, 5vh, 3rem);
  font-size: var(--t-micro); line-height: 1.7; color: var(--ink-3); max-width: 54ch;
}

/* ── control bar ───────────────────────────────────────────────────────── */
.controlbar {
  position: fixed; inset-inline: 0; bottom: 0; z-index: 30;
  padding: 0.75rem var(--pad) calc(0.75rem + env(safe-area-inset-bottom, 0px));
  background: var(--bg-bar);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-top: 1px solid var(--rule-soft);
}
.controlbar__inner {
  width: min(var(--measure), 100%); margin-inline: auto;
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.25rem;
}
.controlbar__label {
  font-size: var(--t-micro); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; white-space: nowrap;
}
.controlbar__value {
  font-size: var(--t-h3); font-weight: 650; letter-spacing: -0.025em;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.controlbar .slider { flex: 1 1 12rem; min-width: 8rem; }

.slider {
  -webkit-appearance: none; appearance: none; width: 100%; height: 1.75rem;
  margin: 0; background: transparent; cursor: pointer; touch-action: pan-y;
}
.slider::-webkit-slider-runnable-track {
  height: 5px; border-radius: 3px;
  background: linear-gradient(to right, var(--accent) 0 calc(var(--pct, 0) * 1%), var(--track) calc(var(--pct, 0) * 1%) 100%);
}
.slider::-moz-range-track { height: 5px; border-radius: 3px; background: var(--track); }
.slider::-moz-range-progress { height: 5px; border-radius: 3px; background: var(--accent); }
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 20px; height: 20px; margin-top: -7.5px;
  border-radius: 50%; background: var(--bg-elev); border: 2px solid var(--accent);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.22);
}
.slider::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; background: var(--bg-elev);
  border: 2px solid var(--accent); box-shadow: 0 1px 4px rgba(0, 0, 0, 0.22);
}
.slider:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 3px; }

.btn {
  border: 0; border-radius: 999px; cursor: pointer; font-size: var(--t-small);
  font-weight: 600; padding: 0.55rem 1.1rem; letter-spacing: -0.005em;
  transition: background 220ms var(--ease), color 220ms var(--ease), transform 220ms var(--ease);
}
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--primary:hover { transform: translateY(-1px); }
.btn--ghost { border: 1px solid var(--rule); color: var(--ink); }
.btn--ghost:hover { background: var(--accent-soft); }
.btn--quiet { color: var(--ink-3); text-decoration: underline; text-underline-offset: 3px; padding-inline: 0.25rem; }
.btn--quiet:hover { color: var(--ink); }

/* ── sheet ─────────────────────────────────────────────────────────────── */
.sheet { position: fixed; inset: 0; z-index: 50; }
.sheet[hidden] { display: none; }
.sheet__scrim {
  position: absolute; inset: 0; background: rgba(0, 0, 0, 0.42);
  opacity: 0; transition: opacity 320ms var(--ease);
}
.sheet.is-open .sheet__scrim { opacity: 1; }
.sheet__panel {
  position: absolute; inset-inline: 0; bottom: 0;
  max-height: 88svh; overflow-y: auto; overscroll-behavior: contain;
  background: var(--bg-elev); color: var(--ink);
  border-radius: 22px 22px 0 0; box-shadow: var(--shadow);
  padding: 0.75rem clamp(1.25rem, 5vw, 2.5rem) calc(2rem + env(safe-area-inset-bottom, 0px));
  transform: translateY(102%);
  transition: transform 420ms var(--ease);
}

@media (min-width: 60rem) {
  .sheet__panel { max-width: 52rem; margin-inline: auto; border-radius: 22px 22px 0 0; }
}
.sheet.is-open .sheet__panel { transform: translateY(0); }
.sheet__grab { width: 2.5rem; height: 4px; border-radius: 2px; background: var(--rule); margin: 0 auto 1.25rem; }
.sheet__head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.75rem; }
.sheet__head h2 { font-size: var(--t-h3); font-weight: 650; letter-spacing: -0.02em; }
.sheet__body { max-width: 48rem; }
.sheet__foot {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  margin-top: 2.25rem; padding-top: 1.5rem; border-top: 1px solid var(--rule-soft);
}

.group { margin: 0; min-width: 0; }
.group + .group { margin-top: 2.25rem; padding-top: 2.25rem; border-top: 1px solid var(--rule-soft); }
.group__legend {
  font-size: var(--t-micro); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 700; padding: 0; margin-bottom: 1.35rem;
}
.group__body { display: grid; gap: 1.5rem; }

.field { display: grid; gap: 0.5rem; }
.field__head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.field__label { font-size: var(--t-small); font-weight: 600; letter-spacing: -0.005em; }
.field__hint { font-size: var(--t-micro); color: var(--ink-3); font-weight: 400; }
.field__value { font-size: var(--t-small); font-weight: 650; color: var(--ink); white-space: nowrap; }
.field__row { display: flex; align-items: center; gap: 1rem; }
.field__row .slider { flex: 1 1 auto; }
.field--seg { display: block; }
.field--seg legend { display: block; margin-bottom: 0.6rem; }

.number {
  width: 12ch; padding: 0.5rem 0.75rem; text-align: right;
  background: var(--bg); color: var(--ink);
  border: 1px solid var(--rule); border-radius: 10px;
  font-variant-numeric: tabular-nums; font-weight: 600;
}
.number:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.number::placeholder { color: var(--ink-3); font-weight: 400; }

.segments { display: inline-flex; flex-wrap: wrap; gap: 0.35rem; padding: 0.25rem; background: var(--track); border-radius: 999px; }
.segments label {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  padding: 0.5rem 1rem; border-radius: 999px; font-size: var(--t-small); cursor: pointer;
  transition: background 220ms var(--ease), color 220ms var(--ease);
}
.segments input { position: absolute; opacity: 0; width: 100%; height: 100%; inset: 0; margin: 0; cursor: pointer; }
.segments label:has(input:checked) { background: var(--accent); color: var(--accent-ink); }
.segments label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── reveal ────────────────────────────────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.is-revealed { opacity: 1; transform: none; }

.chart--stack .stack__seg,
.chart--track .track__fill,
.chart--ribbon .ribbon__seg {
  transform-box: fill-box;
  transform-origin: left center;
  transform: scaleX(0);
}
.is-revealed .chart--stack .stack__seg,
.is-revealed .chart--track .track__fill {
  transform: scaleX(1);
  transition: transform 640ms var(--ease) calc(var(--d, 0) * 90ms);
}
.is-revealed .chart--ribbon .ribbon__seg {
  transform: scaleX(1);
  transition: transform 700ms var(--ease) calc(var(--d, 0) * 55ms);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .chart--stack .stack__seg,
  .chart--track .track__fill,
  .chart--ribbon .ribbon__seg { transform: none !important; transition: none !important; }
  .cue::after { animation: none; }
  .sheet__panel, .sheet__scrim { transition: none; }
}

@media (max-width: 640px) {
  .top__tail { display: none; }
  .controlbar__inner { gap: 0.5rem 0.75rem; }
  .controlbar__label { order: 1; }
  .controlbar__value { order: 1; margin-left: auto; }
  .controlbar .slider { order: 3; flex: 1 1 100%; }
  .btn--primary { order: 2; }
  .fact__number { font-size: clamp(2rem, 12vw, 3rem); }
  .allocation__row { grid-template-columns: 0.75rem 1fr auto; }
  .allocation__share { display: none; }
  .ladder__label, .ladder__amount, .compare__label, .compare__amount { font-size: 1.125rem; }
  .ladder__meta { font-size: var(--t-micro); }
  .sheet__panel {
    height: 100svh; max-height: none; border-radius: 0;
    padding-bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px));
  }
  .sheet__body { max-width: none; }
}