/* ============================================================
   Presentation engine — deck, slides, navigation, print, motion
   Depends on theme.css tokens.
   ============================================================ */

html, body { height: 100%; }
body { overflow: hidden; }

#deck {
  position: relative;
  width: 100%;
  height: 100vh;
}

/* ---------- Slide canvas ---------- */
.slide {
  position: absolute; inset: 0;
  display: none;
  padding: 5vh 5.8vw 5.5vh;
  grid-template-rows: auto 1fr auto;
  gap: 2vh;
  overflow: hidden;
}
.slide.is-active {
  display: grid;
  animation: slideIn .28s var(--ease) both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Partial review reveals ---------- */
.partial-item {
  opacity: 0;
  transform: translateY(10px);
  filter: blur(2px);
  pointer-events: none;
  transition:
    opacity .24s var(--ease),
    transform .24s var(--ease),
    filter .24s var(--ease);
}
.partial-item.is-visible {
  opacity: 1;
  transform: none;
  filter: none;
  pointer-events: auto;
}

/* ---------- Chrome: topline & footer ---------- */
.topline {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: var(--t-small);
  letter-spacing: .06em; text-transform: uppercase;
}
.topline .count {
  font-variant-numeric: tabular-nums;
  color: #d9e2f1; font-weight: 600;
}

.slide-footer {
  display: flex; justify-content: space-between; align-items: end;
  flex-wrap: wrap;
  gap: 16px;
  font-size: var(--t-small);
  color: var(--muted);
}
.slide-footer span {
  flex: 1 1 0;
}
.slide-footer .creator {
  flex: 1.6 1 260px;
  text-align: center;
  color: rgba(219,231,246,.72);
}
.slide-footer span:last-child {
  text-align: right;
}

/* ---------- Layout: two-column content ---------- */
.content {
  min-height: 0;
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  gap: 3vw;
  align-items: center;
}
.content.is-full { grid-template-columns: 1fr; }
.content.is-section { grid-template-columns: .95fr 1.05fr; }

.content main {
  min-width: 0;
  display: grid;
  align-content: center;
  gap: .6rem;
}
.content aside.visual {
  min-width: 0;
  min-height: 42vh;
  display: grid;
  place-items: center;
}

@media (max-width: 960px) {
  .content { grid-template-columns: 1fr; gap: 2vh; }
  .content aside.visual { min-height: 30vh; }
  .slide { padding: 4vh 5vw; }
}

/* ---------- Visual panels ---------- */
.vizPanel {
  width: min(100%, 560px);
  aspect-ratio: 1.08;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  overflow: hidden;
}
.vizPanel svg { width: 100%; height: 100%; display: block; }

.photoPanel {
  position: relative;
  width: min(100%, 600px);
  height: min(64vh, 520px);
  min-height: 360px;
  margin: 0;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.055);
  box-shadow: var(--shadow-md);
}
.photoPanel img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.photoPanel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 58%, rgba(3,10,20,.78));
}
.photoPanel figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  z-index: 1;
  color: rgba(255,255,255,.78);
  font-size: clamp(11px, .85vw, 14px);
  line-height: 1.25;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
}
.photoPanel figcaption span:last-child { text-align: right; }
.photoPanel figcaption a {
  color: inherit;
  text-decoration: none;
}
.photoPanel figcaption a:hover { text-decoration: underline; }

@media (max-width: 960px) {
  .photoPanel {
    height: min(34vh, 360px);
    min-height: 240px;
  }
}

/* SVG primitives */
.axis     { stroke: rgba(255,255,255,.55); stroke-width: 2.5; }
.gridline { stroke: rgba(255,255,255,.055); stroke-width: 1; }
.curve {
  fill: none; stroke-width: 6; stroke-linecap: round;
  filter: none;
  stroke-dasharray: 700; stroke-dashoffset: 700;
  animation: draw .8s var(--ease) forwards;
}
.curve.gold  { stroke: var(--gold); }
.curve.cyan  { stroke: var(--cyan); }
.curve.green { stroke: var(--green); }
.curve.rose  { stroke: var(--rose); }
.curve.violet { stroke: var(--violet); }
@keyframes draw { to { stroke-dashoffset: 0; } }

.bar {
  rx: 8;
  transform-origin: bottom;
  animation: growY 1s var(--ease) forwards;
}
@keyframes growY {
  from { transform: scaleY(.02); opacity: .4; }
  to   { transform: scaleY(1); opacity: 1; }
}

.arrow-line {
  stroke: var(--gold); stroke-width: 4.5; fill: none;
  stroke-linecap: round;
  stroke-dasharray: 360; stroke-dashoffset: 360;
  animation: draw .75s var(--ease) forwards;
}

/* Hero decorative graphic */
.heroGraphic {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(86,216,255,.14), transparent 62%);
  display: grid; place-items: center;
}
.heroGraphic .orbit {
  position: absolute;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 50%;
}
.heroGraphic .o1 { inset: 8%; }
.heroGraphic .o2 { inset: 22%; }
.heroGraphic .o3 { inset: 36%; }
.coin {
  position: absolute;
  width: 64px; height: 64px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--gold), var(--gold-warm));
  color: #111827;
  font-weight: 900; font-size: 30px;
  box-shadow: var(--shadow-sm);
}
.coin.c1 { top: 12%; right: 16%; }
.coin.c2 { bottom: 15%; left: 10%; transform: scale(.8); }
.coin.c3 { bottom: 24%; right: 14%; transform: scale(.62); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Hero slide ---------- */
.slide.is-hero .content { grid-template-columns: 1.2fr .8fr; }
.slide.is-hero h1 {
  font-size: var(--t-hero);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

/* ---------- Full-screen discussion slide ---------- */
.slide.is-discussion {
  isolation: isolate;
  background: radial-gradient(circle at 50% 50%, rgba(86,216,255,.24), rgba(3,10,20,.94));
}
.slide.is-discussion::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(3,10,20,.82), rgba(3,10,20,.36) 54%, rgba(3,10,20,.68)),
    linear-gradient(180deg, rgba(3,10,20,.26), rgba(3,10,20,.68));
}
.slide.is-discussion > :not(.discussionBg) {
  position: relative;
  z-index: 2;
}
.discussionBg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.discussionContent {
  min-height: 0;
  display: grid;
  align-items: center;
  max-width: min(1160px, 82vw);
  padding-bottom: 8vh;
}
.discussionPrompt p {
  margin: 0;
  max-width: 24ch;
  color: #fff;
  font-size: clamp(34px, 4.45vw, 66px);
  line-height: 1.06;
  font-weight: 900;
  text-wrap: balance;
  text-shadow: 0 14px 44px rgba(0,0,0,.58);
}
.discussionPrompt .zh {
  margin-top: .85rem;
  max-width: 30ch;
  font-size: clamp(20px, 2.05vw, 31px);
  line-height: 1.36;
  font-weight: 700;
  color: rgba(255,255,255,.86);
}
.slide.is-discussion.is-medium .discussionPrompt p {
  max-width: 28ch;
  font-size: clamp(31px, 3.9vw, 58px);
}
.slide.is-discussion.is-medium .discussionPrompt .zh {
  max-width: 34ch;
  font-size: clamp(19px, 1.9vw, 28px);
}
.slide.is-discussion.is-long .discussionPrompt p {
  max-width: 32ch;
  font-size: clamp(28px, 3.25vw, 48px);
  line-height: 1.1;
}
.slide.is-discussion.is-long .discussionPrompt .zh {
  max-width: 36ch;
  font-size: clamp(18px, 1.65vw, 25px);
}
.discussionCredit {
  position: absolute;
  left: 5.8vw;
  right: 5.8vw;
  bottom: 8.5vh;
  max-width: none;
  color: rgba(255,255,255,.62);
  font-size: clamp(11px, .85vw, 14px);
  text-align: left;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
}
.discussionCredit span:last-child { text-align: right; }

@media (max-width: 960px) {
  .discussionContent {
    max-width: 90vw;
    padding-bottom: 9vh;
  }
  .discussionPrompt p {
    max-width: 20ch;
    font-size: clamp(30px, 8vw, 48px);
  }
  .discussionPrompt .zh {
    max-width: 24ch;
    font-size: clamp(18px, 4.8vw, 27px);
  }
  .slide.is-discussion.is-medium .discussionPrompt p,
  .slide.is-discussion.is-long .discussionPrompt p {
    max-width: 24ch;
    font-size: clamp(26px, 6.5vw, 40px);
  }
  .slide.is-discussion.is-medium .discussionPrompt .zh,
  .slide.is-discussion.is-long .discussionPrompt .zh {
    max-width: 26ch;
    font-size: clamp(16px, 4vw, 23px);
  }
  .discussionCredit {
    left: 5vw;
    right: 5vw;
    bottom: 7vh;
    flex-direction: column;
    align-items: flex-start;
    gap: .25rem;
  }
  .discussionCredit span:last-child { text-align: left; }
}

/* ---------- Real-world fact slides ---------- */
.factBlock {
  display: grid;
  gap: 1.15rem;
}
.factCountry {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  color: #fff;
  background: rgba(255,255,255,.1);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: .55rem .85rem;
  font-size: clamp(18px, 1.45vw, 24px);
  font-weight: 900;
}
.factFlag {
  font-size: 1.35em;
  line-height: 1;
}
.factText {
  margin: 0;
  color: var(--ink);
  font-size: clamp(34px, 4.2vw, 64px);
  line-height: 1.14;
  font-weight: 900;
  text-wrap: balance;
}
.factZh {
  margin: -.35rem 0 0;
  color: var(--ink-dim);
  font-size: clamp(22px, 2vw, 34px);
  line-height: 1.42;
  font-weight: 700;
  text-wrap: balance;
}

/* ---------- Interactive tax simulator ---------- */
.taxSim {
  display: grid;
  gap: 1rem;
}
.simModes {
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .5rem;
  max-width: 780px;
  padding: .35rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.045);
}
.simMode {
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: calc(var(--r-md) - 6px);
  background: transparent;
  color: var(--ink-dim);
  font: inherit;
  font-size: clamp(15px, 1.05vw, 20px);
  font-weight: 750;
  padding: .65rem .75rem;
}
.simMode.is-active {
  background: rgba(86,216,255,.16);
  border-color: rgba(86,216,255,.55);
  color: #fff;
}
.simResults {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .9rem;
}
.simHousehold {
  min-height: 210px;
  display: grid;
  grid-template-rows: auto auto auto auto auto;
  gap: .55rem;
  padding: 1rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.055);
}
.simName {
  color: #fff;
  font-size: clamp(19px, 1.35vw, 27px);
  font-weight: 780;
  line-height: 1.16;
}
.simIncome,
.simBarLabel,
.simTaxRows {
  color: var(--ink-dim);
  font-size: clamp(17px, 1.15vw, 22px);
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
}
.simBarLabel {
  margin-top: .2rem;
  color: var(--muted);
  font-size: clamp(13px, .9vw, 17px);
  font-weight: 750;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.simStackedBar {
  display: flex;
  align-self: center;
  height: 42px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255,255,255,.08);
  border: 1px solid var(--line);
}
.simStackedBar span {
  display: block;
  height: 100%;
  transition: width .2s var(--ease);
}
.simTaxSegment {
  background: linear-gradient(90deg, var(--rose), var(--gold-warm));
}
.simAfterTaxSegment {
  background: linear-gradient(90deg, rgba(86,216,255,.62), rgba(126,240,181,.72));
}
.simTaxRows {
  display: grid;
  gap: .35rem;
  margin-top: .15rem;
}
.simTaxRows div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}
.simTaxRows span {
  color: var(--muted);
}
.simTaxRows b {
  color: #fff;
  font-weight: 800;
  text-align: right;
}
.simLegend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--ink-dim);
  font-size: clamp(15px, 1vw, 19px);
}
.simLegend span {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}
.simLegend i {
  display: inline-block;
  width: 1.15em;
  height: 1.15em;
  border-radius: 999px;
}
.simLegend .is-tax { background: var(--gold-warm); }
.simLegend .is-after-tax { background: var(--green); }
.simTakeaway {
  min-height: 3.4em;
  padding: .85rem 1rem;
  border-radius: var(--r-md);
  background: rgba(255,209,102,.12);
  border: 1px solid rgba(255,209,102,.28);
  color: #fff;
  font-size: clamp(18px, 1.35vw, 26px);
  line-height: 1.25;
  font-weight: 720;
}

@media (max-width: 900px) {
  .simResults { grid-template-columns: 1fr; }
  .simModes { grid-template-columns: 1fr; }
}

/* ---------- Mainland China income tax simulator ---------- */
.chinaTaxSim {
  display: grid;
  gap: .9rem;
}
.chinaTaxSim h2 {
  margin-bottom: -.45rem;
}
.chinaTaxZh {
  margin: 0;
  color: var(--ink-dim);
  font-size: clamp(18px, 1.45vw, 28px);
  line-height: 1.38;
  font-weight: 700;
}
.chinaTaxGrid {
  display: grid;
  grid-template-columns: minmax(320px, .95fr) minmax(360px, 1.05fr);
  gap: 1rem;
}
.chinaTaxPanel {
  display: grid;
  gap: .8rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.055);
}
.chinaTaxControls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
.chinaTaxControls label {
  display: grid;
  gap: .3rem;
  color: #fff;
  font-size: clamp(15px, 1vw, 19px);
  font-weight: 780;
}
.chinaTaxControls small {
  color: var(--ink-dim);
  font-size: clamp(13px, .85vw, 16px);
  line-height: 1.35;
  font-weight: 650;
}
.chinaTaxControls input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: calc(var(--r-md) - 6px);
  background: rgba(0,0,0,.18);
  color: #fff;
  font: inherit;
  font-size: clamp(18px, 1.25vw, 24px);
  font-weight: 820;
  padding: .65rem .7rem;
  font-variant-numeric: tabular-nums;
}
.chinaPresetRow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: .45rem;
}
.chinaPreset {
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: calc(var(--r-md) - 7px);
  background: rgba(255,255,255,.045);
  color: var(--ink-dim);
  font: inherit;
  font-size: clamp(12px, .8vw, 15px);
  line-height: 1.1;
  font-weight: 760;
  padding: .55rem .35rem;
  font-variant-numeric: tabular-nums;
}
.chinaPreset.is-active,
.chinaPreset:hover {
  color: #fff;
  border-color: rgba(86,216,255,.55);
  background: rgba(86,216,255,.14);
}
.chinaFormula,
.chinaSource {
  color: var(--ink-dim);
  font-size: clamp(14px, .95vw, 18px);
  line-height: 1.34;
}
.chinaFormula span {
  display: block;
  margin-top: .15rem;
  color: var(--muted);
}
.chinaTaxResults {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
}
.chinaMetric {
  display: grid;
  gap: .2rem;
  min-height: 74px;
  padding: .75rem;
  border-radius: calc(var(--r-md) - 4px);
  background: rgba(0,0,0,.14);
}
.chinaMetric.is-large {
  grid-column: 1 / -1;
  min-height: 92px;
  background: rgba(255,209,102,.12);
  border: 1px solid rgba(255,209,102,.28);
}
.chinaMetric span {
  color: var(--muted);
  font-size: clamp(13px, .9vw, 17px);
  line-height: 1.2;
}
.chinaMetric b {
  color: #fff;
  font-size: clamp(20px, 1.65vw, 32px);
  line-height: 1.1;
  font-weight: 880;
  font-variant-numeric: tabular-nums;
}
.chinaMetric.is-large b {
  font-size: clamp(30px, 3.5vw, 62px);
}
.chinaIncomeSplit {
  display: flex;
  height: 48px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
}
.chinaIncomeSplit span {
  display: block;
  height: 100%;
  min-width: 0;
  transition: width .22s var(--ease);
}
.chinaStandardSegment { background: rgba(86,216,255,.72); }
.chinaExtraSegment { background: rgba(126,240,181,.72); }
.chinaTaxableSegment { background: linear-gradient(90deg, var(--rose), var(--gold)); }
.chinaLegend {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 1rem;
  color: var(--ink-dim);
  font-size: clamp(14px, .95vw, 18px);
}
.chinaLegend span {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.chinaLegend i {
  display: inline-block;
  width: 1.05em;
  height: 1.05em;
  border-radius: 999px;
}
.chinaLegend .is-standard { background: var(--cyan); }
.chinaLegend .is-extra { background: var(--green); }
.chinaLegend .is-taxable { background: var(--gold); }
.chinaBracketViz {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: .5rem;
}
.chinaBracketRow {
  min-height: 124px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: .45rem;
  padding: .65rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--r-md) - 4px);
  background: rgba(255,255,255,.045);
}
.chinaBracketRow.is-used {
  border-color: rgba(255,209,102,.42);
  background: rgba(255,209,102,.08);
}
.chinaBracketMeta {
  display: flex;
  justify-content: space-between;
  gap: .45rem;
  color: var(--ink-dim);
  font-size: clamp(11px, .72vw, 14px);
  line-height: 1.12;
  font-variant-numeric: tabular-nums;
}
.chinaBracketMeta b {
  color: #fff;
  font-weight: 850;
}
.chinaBracketBar {
  align-self: stretch;
  display: flex;
  align-items: end;
  min-height: 44px;
  border-radius: calc(var(--r-md) - 8px);
  overflow: hidden;
  background: rgba(255,255,255,.08);
}
.chinaBracketBar span {
  display: block;
  height: 100%;
  background: linear-gradient(180deg, var(--gold), var(--rose));
  transition: width .22s var(--ease);
}
.chinaBracketAmount {
  color: var(--muted);
  font-size: clamp(10px, .68vw, 13px);
  line-height: 1.18;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 1100px) {
  .chinaTaxGrid,
  .chinaTaxControls,
  .chinaTaxResults,
  .chinaBracketViz { grid-template-columns: 1fr; }
  .chinaPresetRow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- Indirect tax regressivity simulator ---------- */
.indirectTaxSim {
  display: grid;
  gap: 1rem;
}
.productChooser {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: .65rem;
}
.productButton {
  cursor: pointer;
  min-height: 132px;
  display: grid;
  grid-template-rows: auto auto auto;
  justify-items: center;
  gap: .25rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.055);
  color: #fff;
  font: inherit;
  padding: .8rem .65rem;
  transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.productButton:hover,
.productButton.is-active {
  transform: translateY(-2px);
  border-color: rgba(255,209,102,.65);
  background: rgba(255,209,102,.13);
}
.productPic {
  font-size: clamp(32px, 3vw, 54px);
  line-height: 1;
}
.productName {
  font-size: clamp(14px, 1vw, 19px);
  font-weight: 800;
  line-height: 1.15;
}
.productPrice {
  color: var(--gold);
  font-size: clamp(15px, 1.05vw, 20px);
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}
.indirectProductSummary {
  min-height: 2.5em;
  padding: .65rem .85rem;
  border-radius: var(--r-md);
  border: 1px solid rgba(86,216,255,.24);
  background: rgba(86,216,255,.08);
  color: #fff;
  font-size: clamp(17px, 1.2vw, 23px);
  line-height: 1.25;
  font-weight: 730;
}
.indirectViz {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.indirectHousehold {
  min-height: 250px;
  display: grid;
  grid-template-rows: auto auto auto auto;
  gap: .75rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.055);
}
.indirectName,
.indirectMeta {
  grid-column: 1 / -1;
}
.indirectName {
  color: #fff;
  font-size: clamp(20px, 1.45vw, 28px);
  font-weight: 800;
  line-height: 1.15;
}
.indirectMeta {
  color: var(--ink-dim);
  font-size: clamp(16px, 1.1vw, 21px);
  font-variant-numeric: tabular-nums;
}
.indirectRows {
  align-self: stretch;
  display: grid;
  gap: .55rem;
}
.indirectRows div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .75rem;
  align-items: baseline;
  color: var(--muted);
  font-size: clamp(15px, 1vw, 19px);
  line-height: 1.25;
}
.indirectRows b {
  color: #fff;
  font-size: clamp(17px, 1.25vw, 23px);
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}
.burdenMeter {
  height: 46px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.08);
}
.burdenMeter span {
  display: block;
  height: 100%;
  width: 4%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--rose), var(--gold));
  box-shadow: 0 0 26px rgba(255,209,102,.25);
  transition: width .22s var(--ease);
}
.indirectLegend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--ink-dim);
  font-size: clamp(15px, 1vw, 19px);
}
.indirectLegend span {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}
.indirectLegend i {
  display: inline-block;
  width: 1.15em;
  height: 1.15em;
  border-radius: 999px;
}
.indirectLegend .is-tax { background: var(--gold-warm); }
.indirectTakeaway {
  min-height: 3.2em;
  padding: .85rem 1rem;
  border-radius: var(--r-md);
  background: rgba(255,209,102,.12);
  border: 1px solid rgba(255,209,102,.28);
  color: #fff;
  font-size: clamp(18px, 1.35vw, 26px);
  line-height: 1.25;
  font-weight: 720;
}

@media (max-width: 960px) {
  .productChooser,
  .indirectViz { grid-template-columns: 1fr; }
  .productButton { min-height: 100px; }
  .indirectHousehold { min-height: 230px; }
}

/* ---------- Progress bar ---------- */
#progress {
  position: fixed; left: 0; right: 0; bottom: 0;
  height: 4px;
  background: rgba(255,255,255,.08);
  z-index: 60;
}
#progress > span {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  transition: width .3s var(--ease);
}

/* ---------- Hint ribbon ---------- */
.help {
  position: fixed; right: 16px; bottom: 16px;
  z-index: 50;
  font-size: 12px; letter-spacing: .03em;
  color: rgba(255,255,255,.46);
  background: rgba(0,0,0,.18);
  padding: 7px 11px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(6px);
}

/* ---------- Notes overlay ---------- */
#notes {
  display: none;
  position: fixed;
  left: 4vw; right: 4vw; bottom: 5vh;
  z-index: 70;
  padding: 1rem 1.2rem;
  background: rgba(3,10,20,.92);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  font-size: 16px; line-height: 1.4;
  color: var(--ink-dim);
  backdrop-filter: blur(14px);
}
#notes.is-visible { display: block; }

/* ---------- Overview (thumbnail grid) ---------- */
#overview {
  display: none;
  position: fixed; inset: 0;
  z-index: 80;
  background: rgba(5,12,22,.92);
  backdrop-filter: blur(18px);
  padding: 4vh 4vw;
  overflow: auto;
}
#overview.is-visible { display: block; }
#overview h2 { margin-bottom: 1.2rem; }
.thumbGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.thumb {
  cursor: pointer;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--card-bg);
  padding: 1rem;
  color: var(--ink);
  font-family: inherit;
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.thumb:hover { transform: translateY(-3px); border-color: var(--line-strong); }
.thumb .n { font-size: 12px; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.thumb .t { display: block; font-weight: 700; margin-top: .35em; font-size: 17px; line-height: 1.25; color: #fff; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .slide.is-active { animation: none; }
  .partial-item { transition: none; }
  .curve, .arrow-line, .bar { animation: none; stroke-dashoffset: 0; transform: none; }
  .heroGraphic .orbit { animation: none; }
}

/* ---------- Print ---------- */
@media print {
  html, body { height: auto; overflow: auto; background: white; }
  body::before, body::after, #progress, .help, #notes, #overview { display: none !important; }
  #deck { height: auto; }
  .slide {
    position: relative !important;
    display: grid !important;
    height: 100vh;
    page-break-after: always;
    background: var(--bg-0);
    color: var(--ink);
  }
  .partial-item {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
}