:root {
  --bg: #f5f2ea;
  --surface: #fffdf8;
  --surface-strong: #f9f4ec;
  --ink: #14213d;
  --muted: #4e5b73;
  --line: #d9d3c7;
  --accent-blue: #2b59c3;
  --accent-orange: #e4572e;
  --accent-teal: #1b998b;
  --accent-yellow: #f3b53c;
  --shadow: 0 28px 80px rgba(20, 33, 61, 0.12);
  --mono: "JetBrains Mono", monospace;
  --headline: "Space Grotesk", "Sora", "Pretendard Variable", sans-serif;
  --body: "Pretendard Variable", "SUIT Variable", "Apple SD Gothic Neo", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(43, 89, 195, 0.08), transparent 28%),
    radial-gradient(circle at bottom right, rgba(228, 87, 46, 0.08), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0)),
    var(--bg);
  color: var(--ink);
  font-family: var(--body);
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(217, 211, 199, 0.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 211, 199, 0.22) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, black, transparent 86%);
  pointer-events: none;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 1rem;
  padding: 1rem 1.25rem 1.15rem;
}

.deck-chrome,
.deck-controls {
  width: min(96vw, calc((94vh - 8rem) * 16 / 9));
  margin: 0 auto;
}

.deck-chrome {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
}

.deck-chrome__brand,
.deck-chrome__meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.deck-chrome__title,
.counter,
.hint {
  color: var(--muted);
  font-size: 0.88rem;
}

.progress {
  width: min(96vw, calc((94vh - 8rem) * 16 / 9));
  height: 6px;
  margin: 0 auto;
  border-radius: 999px;
  background: rgba(20, 33, 61, 0.08);
  overflow: hidden;
}

.progress__fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
  border-radius: inherit;
  transition: width 280ms ease;
}

.deck-stage {
  display: grid;
  place-items: center;
}

.deck {
  position: relative;
  width: min(96vw, calc((94vh - 8rem) * 16 / 9));
  aspect-ratio: 16 / 9;
  border-radius: 28px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.1));
  box-shadow: var(--shadow);
}

.slide {
  position: absolute;
  inset: 0;
  padding: 0;
  opacity: 0;
  transform: translateX(28px) scale(0.985);
  transition:
    opacity 320ms ease,
    transform 320ms ease;
  pointer-events: none;
}

.slide.is-active {
  opacity: 1;
  transform: translateX(0) scale(1);
  pointer-events: auto;
}

.slide__inner {
  position: relative;
  height: 100%;
  padding: 3.2rem 3.4rem 2.8rem;
}

.eyebrow {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow::before {
  content: "";
  width: 1.8rem;
  height: 1px;
  background: currentColor;
}

.headline {
  margin: 0;
  font-family: var(--headline);
  font-size: clamp(2.2rem, 3.4vw, 3.5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.headline--xl {
  font-size: clamp(4rem, 6vw, 6.3rem);
}

.headline--lg {
  font-size: clamp(3.2rem, 5vw, 5rem);
}

.subheadline {
  margin: 0;
  max-width: 48rem;
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--muted);
}

.speaker,
.closing,
.caption {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.hero {
  display: grid;
  grid-template-rows: 1fr auto;
}

.hero__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 24% 22%, rgba(43, 89, 195, 0.1), transparent 18%),
    radial-gradient(circle at 82% 24%, rgba(27, 153, 139, 0.08), transparent 22%),
    radial-gradient(circle at 60% 80%, rgba(228, 87, 46, 0.09), transparent 22%);
}

.hero__backdrop::before {
  content: "";
  position: absolute;
  inset: 8% 4%;
  border-radius: 22px;
  background:
    radial-gradient(circle at 25% 22%, transparent 0 16%, rgba(20, 33, 61, 0.08) 16.5% 17%, transparent 17.5% 100%),
    radial-gradient(circle at 62% 60%, transparent 0 18%, rgba(20, 33, 61, 0.07) 18.5% 19%, transparent 19.5% 100%),
    radial-gradient(circle at 80% 34%, transparent 0 12%, rgba(20, 33, 61, 0.07) 12.5% 13%, transparent 13.5% 100%);
  opacity: 0.8;
}

.hero__content,
.hero__content--end {
  position: relative;
  display: grid;
  align-content: center;
  gap: 1rem;
  z-index: 1;
}

.hero__content--end {
  justify-items: start;
  max-width: 58rem;
}

.hero__rail {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  gap: 0.75rem;
  align-items: center;
  font-family: var(--mono);
  color: var(--muted);
  z-index: 1;
}

.hero__rail span:nth-child(2),
.hero__rail span:nth-child(4) {
  height: 1px;
  background: linear-gradient(90deg, rgba(20, 33, 61, 0.2), rgba(20, 33, 61, 0.05));
}

.split,
.split--balanced {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 2rem;
  align-items: center;
  height: 100%;
}

.split--compare {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1.4rem;
}

.split__left,
.split__right,
.split__top {
  display: grid;
  gap: 1rem;
}

.bullet-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.8rem;
  color: var(--ink);
}

.bullet-list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 1.05rem;
  line-height: 1.45;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-orange));
}

.bullet-list--inline {
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
}

.compare-card,
.policy-grid,
.formula-card,
.mini-plot,
.flow-card,
.parameter-card,
.context-card,
.topic-card,
.tool-card,
.statement-strip {
  border: 1px solid rgba(20, 33, 61, 0.08);
  border-radius: 24px;
  background: rgba(255, 253, 248, 0.9);
  box-shadow: 0 18px 48px rgba(20, 33, 61, 0.08);
}

.compare-card {
  padding: 1.35rem;
  display: grid;
  gap: 1rem;
}

.compare-card__mini {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
}

.compare-card__mini span {
  display: grid;
  place-items: center;
  min-height: 8rem;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(43, 89, 195, 0.14), rgba(43, 89, 195, 0.03));
  color: var(--accent-blue);
  font-family: var(--headline);
  font-size: 2rem;
}

.policy-grid {
  padding: 1rem;
  display: grid;
  gap: 1rem;
}

.policy-grid__label {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
}

.policy-grid__cells {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.6rem;
}

.policy-grid__cells span {
  aspect-ratio: 1;
  border-radius: 16px;
  background: rgba(20, 33, 61, 0.06);
}

.policy-grid__cells span:nth-child(6n + 3),
.policy-grid__cells span:nth-child(6n + 4),
.policy-grid__cells span:nth-child(10),
.policy-grid__cells span:nth-child(15) {
  background: linear-gradient(135deg, rgba(43, 89, 195, 0.32), rgba(27, 153, 139, 0.18));
}

.formula-layout {
  display: grid;
  grid-template-columns: 0.9fr 1fr 0.95fr;
  gap: 1.6rem;
  align-items: stretch;
  height: 100%;
}

.formula-layout--wide {
  grid-template-columns: 0.82fr 0.96fr 1.1fr;
}

.formula-layout--stack {
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 1.3rem;
  align-items: stretch;
}

.formula-card {
  padding: 1.35rem 1.4rem;
  display: grid;
  align-content: start;
  gap: 0.85rem;
}

.formula-card code {
  font-family: var(--mono);
  font-size: clamp(1.15rem, 1.8vw, 1.65rem);
  color: var(--ink);
  white-space: pre-wrap;
}

.formula-card--compact code {
  font-size: 1rem;
}

.formula-copy {
  display: grid;
  align-content: center;
  gap: 1rem;
}

.contour-panel,
.heatmap-card__surface {
  position: relative;
  min-height: 100%;
  border-radius: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 22% 28%, rgba(43, 89, 195, 0.22), transparent 18%),
    radial-gradient(circle at 68% 42%, rgba(228, 87, 46, 0.22), transparent 20%),
    radial-gradient(circle at 58% 70%, rgba(27, 153, 139, 0.2), transparent 16%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(249, 244, 236, 0.96));
  border: 1px solid rgba(20, 33, 61, 0.08);
}

.contour-panel::before,
.heatmap-card__surface::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 30%, transparent 0 16%, rgba(20, 33, 61, 0.08) 16.5% 17%, transparent 17.5%),
    radial-gradient(circle at 56% 52%, transparent 0 12%, rgba(20, 33, 61, 0.08) 12.5% 13%, transparent 13.5%),
    radial-gradient(circle at 78% 34%, transparent 0 20%, rgba(20, 33, 61, 0.07) 20.5% 21%, transparent 21.5%),
    radial-gradient(circle at 48% 68%, transparent 0 22%, rgba(20, 33, 61, 0.06) 22.5% 23%, transparent 23.5%);
  opacity: 0.9;
}

.contour-panel__tag,
.heatmap-card__tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 1;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contour-panel__point,
.contour-panel__ring,
.heatmap-card__ring,
.heatmap-card__dot {
  position: absolute;
  border-radius: 999px;
  z-index: 1;
}

.contour-panel__point {
  width: 0.85rem;
  height: 0.85rem;
  background: var(--accent-orange);
  box-shadow: 0 0 0 7px rgba(228, 87, 46, 0.16);
}

.contour-panel__point--one {
  left: 23%;
  top: 62%;
}

.contour-panel__point--two {
  left: 68%;
  top: 38%;
}

.mini-plots {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.mini-plot {
  padding: 1rem;
  display: grid;
  gap: 0.8rem;
}

.mini-plot__label {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
}

.mini-plot svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

.mini-plot path {
  fill: none;
  stroke: var(--accent-blue);
  stroke-width: 4;
  stroke-linecap: round;
}

.mini-plot--band .band {
  fill: rgba(43, 89, 195, 0.18);
  stroke: none;
}

.mini-plot--band .mean {
  stroke: var(--accent-orange);
}

.mini-plot circle {
  fill: var(--accent-orange);
}

.noise-plot {
  min-height: 20rem;
  padding: 1rem;
  border-radius: 24px;
  background: rgba(255, 253, 248, 0.82);
  border: 1px solid rgba(20, 33, 61, 0.08);
}

.noise-plot svg {
  width: 100%;
  height: 100%;
}

.noise-plot .axis {
  fill: none;
  stroke: rgba(20, 33, 61, 0.22);
  stroke-width: 3;
}

.noise-plot .trend {
  fill: none;
  stroke: var(--accent-blue);
  stroke-width: 4;
  stroke-linecap: round;
}

.noise-plot circle {
  fill: var(--accent-orange);
}

.stack-plots {
  display: grid;
  gap: 1rem;
}

.stack-plot {
  display: grid;
  gap: 0.55rem;
}

.stack-plot span {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
}

.stack-plot__track {
  position: relative;
  min-height: 6.6rem;
  border-radius: 22px;
  background: rgba(255, 253, 248, 0.88);
  border: 1px solid rgba(20, 33, 61, 0.08);
  overflow: hidden;
}

.stack-plot__track::before {
  content: "";
  position: absolute;
  inset: 0 1.2rem;
  top: 50%;
  height: 4px;
  border-radius: 999px;
  transform: translateY(-50%);
}

.stack-plot__track--blue::before {
  background: linear-gradient(90deg, rgba(43, 89, 195, 0.2), var(--accent-blue), rgba(43, 89, 195, 0.25));
}

.stack-plot__track--teal::before {
  background: linear-gradient(90deg, rgba(27, 153, 139, 0.18), var(--accent-teal), rgba(27, 153, 139, 0.18));
}

.stack-plot__track--orange::before {
  background: linear-gradient(90deg, rgba(228, 87, 46, 0.1), var(--accent-orange), rgba(228, 87, 46, 0.14));
}

.stack-plot__track--orange i {
  position: absolute;
  right: 18%;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  border-radius: 999px;
  background: var(--accent-orange);
  box-shadow: 0 0 0 8px rgba(228, 87, 46, 0.18);
}

.parameter-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.parameter-card {
  padding: 1.2rem;
  display: grid;
  gap: 0.45rem;
}

.parameter-card__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
}

.parameter-card h3,
.context-card h3,
.topic-card h3,
.tool-card h3 {
  margin: 0;
  font-family: var(--headline);
  font-size: 1.5rem;
  letter-spacing: -0.04em;
}

.parameter-card p {
  margin: 0;
  color: var(--muted);
}

.flow-card {
  padding: 1.5rem;
  min-height: 18rem;
  display: grid;
  place-items: center;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0.7rem;
}

.flow-card__node {
  min-height: 9rem;
  border-radius: 22px;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: linear-gradient(160deg, rgba(43, 89, 195, 0.18), rgba(43, 89, 195, 0.04));
  border: 1px solid rgba(43, 89, 195, 0.12);
  font-family: var(--headline);
  text-align: center;
}

.flow-card__node--soft {
  background: linear-gradient(160deg, rgba(20, 33, 61, 0.06), rgba(20, 33, 61, 0.02));
  border-color: rgba(20, 33, 61, 0.08);
}

.flow-card__operator {
  font-family: var(--headline);
  font-size: 2.2rem;
  color: var(--muted);
}

.heatmap-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 1.5rem;
  align-items: center;
  height: 100%;
}

.heatmap-copy {
  display: grid;
  gap: 1rem;
}

.heatmap-card {
  min-height: 30rem;
  padding: 1rem;
  border-radius: 26px;
  background: rgba(255, 253, 248, 0.84);
  border: 1px solid rgba(20, 33, 61, 0.08);
}

.heatmap-card__surface {
  min-height: 100%;
}

.heatmap-card__surface svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.heatmap-card__surface svg path {
  fill: none;
  stroke: rgba(228, 87, 46, 0.75);
  stroke-width: 10;
  stroke-linecap: round;
}

.heatmap-card__dot {
  width: 0.85rem;
  height: 0.85rem;
  background: var(--accent-orange);
  box-shadow: 0 0 0 7px rgba(228, 87, 46, 0.16);
}

.dot-1 { left: 18%; top: 78%; }
.dot-2 { left: 28%; top: 64%; }
.dot-3 { left: 42%; top: 54%; }
.dot-4 { left: 51%; top: 45%; }
.dot-5 { left: 67%; top: 33%; }
.dot-6 { left: 83%; top: 27%; }

.heatmap-card__ring {
  width: 3.4rem;
  height: 3.4rem;
  border: 4px solid var(--accent-blue);
  background: transparent;
  left: 72%;
  top: 22%;
  box-shadow: 0 0 0 12px rgba(43, 89, 195, 0.16);
}

.heatmap-card--constraint .mask {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(20, 33, 61, 0.08),
      rgba(20, 33, 61, 0.08) 10px,
      transparent 10px,
      transparent 20px
    );
  clip-path: polygon(0 0, 100% 0, 100% 58%, 74% 64%, 56% 100%, 0 100%);
  z-index: 1;
}

.heatmap-card__ring--one {
  left: 76%;
  top: 18%;
}

.heatmap-card__ring--two {
  left: 48%;
  top: 62%;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 12px rgba(228, 87, 46, 0.14);
}

.compare-panels {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.context-card {
  padding: 1rem;
  display: grid;
  gap: 0.9rem;
}

.context-card header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.context-chip {
  display: inline-flex;
  padding: 0.38rem 0.7rem;
  border-radius: 999px;
  background: rgba(43, 89, 195, 0.12);
  color: var(--accent-blue);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.context-chip--soft {
  background: rgba(27, 153, 139, 0.12);
  color: var(--accent-teal);
}

.context-chip--warm {
  background: rgba(228, 87, 46, 0.12);
  color: var(--accent-orange);
}

.context-chip--mint {
  background: rgba(243, 181, 60, 0.14);
  color: #8d5a07;
}

.contour-panel--a,
.contour-panel--b,
.contour-panel--c,
.contour-panel--d {
  min-height: 20rem;
}

.contour-panel--a .contour-panel__ring,
.contour-panel--b .contour-panel__ring,
.contour-panel--c .contour-panel__ring,
.contour-panel--d .contour-panel__ring {
  width: 2.8rem;
  height: 2.8rem;
  border: 4px solid var(--accent-blue);
  left: 68%;
  top: 28%;
  box-shadow: 0 0 0 12px rgba(43, 89, 195, 0.14);
}

.contour-panel--b::before {
  opacity: 0.6;
}

.contour-panel--b .contour-panel__ring {
  left: 34%;
  top: 64%;
  border-color: var(--accent-teal);
  box-shadow: 0 0 0 12px rgba(27, 153, 139, 0.14);
}

.contour-panel--c .contour-panel__ring {
  left: 48%;
  top: 38%;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 12px rgba(228, 87, 46, 0.14);
}

.contour-panel--d .contour-panel__ring {
  left: 28%;
  top: 54%;
  border-color: var(--accent-yellow);
  box-shadow: 0 0 0 12px rgba(243, 181, 60, 0.16);
}

.node-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 1.6rem;
  align-items: center;
  height: 100%;
}

.node-copy {
  display: grid;
  gap: 1rem;
}

.node-visual {
  position: relative;
  min-height: 26rem;
  border-radius: 28px;
  background: rgba(255, 253, 248, 0.86);
  border: 1px solid rgba(20, 33, 61, 0.08);
  overflow: hidden;
}

.node-visual svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.node-visual svg path {
  fill: none;
  stroke: rgba(43, 89, 195, 0.38);
  stroke-width: 6;
  stroke-linecap: round;
}

.task-node {
  position: absolute;
  min-width: 8rem;
  min-height: 8rem;
  display: grid;
  place-items: center;
  padding: 1rem;
  border-radius: 22px;
  background: linear-gradient(160deg, rgba(43, 89, 195, 0.16), rgba(43, 89, 195, 0.04));
  border: 1px solid rgba(43, 89, 195, 0.14);
  font-family: var(--headline);
  font-size: 1.05rem;
}

.task-node--a { left: 7%; top: 12%; }
.task-node--b { right: 7%; top: 12%; }
.task-node--c { left: 7%; bottom: 10%; }
.task-node--d { right: 7%; bottom: 10%; }

.task-hub {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  min-width: 10rem;
  min-height: 10rem;
  display: grid;
  place-items: center;
  padding: 1rem;
  border-radius: 999px;
  background: linear-gradient(160deg, rgba(20, 33, 61, 0.09), rgba(20, 33, 61, 0.03));
  border: 1px solid rgba(20, 33, 61, 0.1);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.cards-layout {
  display: grid;
  gap: 1.4rem;
  height: 100%;
  align-content: start;
}

.cards-copy {
  display: grid;
  gap: 0.8rem;
}

.cards-grid {
  display: grid;
  gap: 1rem;
}

.cards-grid--four {
  grid-template-columns: repeat(2, 1fr);
}

.cards-grid--two {
  grid-template-columns: repeat(2, 1fr);
}

.topic-card,
.tool-card {
  padding: 1.4rem;
  min-height: 12rem;
  display: grid;
  align-content: space-between;
}

.topic-card--soft {
  background: linear-gradient(160deg, rgba(20, 33, 61, 0.06), rgba(20, 33, 61, 0.02));
}

.tool-card {
  background: linear-gradient(160deg, rgba(43, 89, 195, 0.16), rgba(43, 89, 195, 0.04));
}

.tool-card--alt {
  background: linear-gradient(160deg, rgba(228, 87, 46, 0.16), rgba(228, 87, 46, 0.04));
}

.tool-card__label {
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--muted);
}

.statement-strip {
  min-height: 5rem;
  display: grid;
  place-items: center;
  padding: 1rem 1.5rem;
  font-family: var(--headline);
  font-size: 1.45rem;
  text-align: center;
  background: linear-gradient(90deg, rgba(27, 153, 139, 0.12), rgba(43, 89, 195, 0.08));
}

.deck-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.control-button {
  appearance: none;
  border: 1px solid rgba(20, 33, 61, 0.12);
  border-radius: 999px;
  background: rgba(255, 253, 248, 0.86);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.84rem;
  padding: 0.85rem 1.15rem;
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    opacity 180ms ease;
}

.control-button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: white;
}

.control-button:disabled {
  opacity: 0.42;
  cursor: default;
}

.control-button--primary {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-orange));
  color: white;
  border-color: transparent;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
}

.slide.is-active .reveal {
  animation: reveal-up 480ms ease forwards;
  animation-delay: var(--d, 0s);
}

@keyframes reveal-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .deck,
  .deck-chrome,
  .progress,
  .deck-controls {
    width: min(96vw, calc((82vh - 8rem) * 16 / 9));
  }

  .slide__inner {
    padding: 2.4rem 2.4rem 2rem;
  }

  .headline--xl {
    font-size: clamp(3rem, 5vw, 4.8rem);
  }
}

@media (max-width: 820px) {
  .app-shell {
    padding: 0.7rem;
  }

  .deck {
    width: 96vw;
  }

  .deck-chrome,
  .progress,
  .deck-controls {
    width: 96vw;
  }

  .split,
  .formula-layout,
  .heatmap-layout,
  .node-layout,
  .compare-panels,
  .cards-grid--four,
  .cards-grid--two,
  .parameter-card-grid {
    grid-template-columns: 1fr;
  }

  .bullet-list--inline {
    grid-auto-flow: row;
    grid-auto-columns: auto;
  }

  .flow-card {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .flow-card__operator {
    transform: rotate(90deg);
  }
}