.kv-cache-demo {
  position: relative;
  margin: 1.5rem 0 1.75rem;
  padding: 1.15rem;
  border: 1px solid rgba(13, 107, 99, 0.2);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at top right, rgba(13, 107, 99, 0.08), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(247, 241, 231, 0.94));
  box-shadow: var(--shadow);
}

.kv-cache-print-static {
  display: none;
}

.kv-cache-demo__header,
.kv-cache-demo__step-button,
.kv-cache-demo__step-label,
.kv-cache-demo__panel-title,
.kv-cache-demo__chip,
.kv-cache-demo__mini-chip,
.kv-cache-demo__score-row,
.kv-cache-demo__token {
  font-family: "IBM Plex Sans", sans-serif;
}

.kv-cache-demo__header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.9rem;
  align-items: start;
}

.kv-cache-demo__eyebrow {
  margin: 0 0 0.15rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
}

.kv-cache-demo__title {
  margin: 0;
  font-size: 1.32rem;
  font-family: "Fraunces", "Source Serif 4", serif;
  font-weight: 700;
  line-height: 1.15;
}

.kv-cache-demo__step-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.kv-cache-demo__step-label {
  min-width: 7.5rem;
  margin: 0;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.kv-cache-demo__step-button {
  min-width: 4.5rem;
  padding: 0.65rem 0.95rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease,
    box-shadow 140ms ease;
}

.kv-cache-demo__step-button:hover,
.kv-cache-demo__step-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(13, 107, 99, 0.32);
  background: rgba(13, 107, 99, 0.08);
  outline: none;
}

.kv-cache-demo__step-button:disabled {
  cursor: default;
  opacity: 0.42;
  transform: none;
  box-shadow: none;
}

.kv-cache-demo__status {
  margin: 1rem 0 0;
  padding: 0.85rem 0.95rem;
  border-radius: var(--radius-small);
  border: 1px solid rgba(13, 107, 99, 0.16);
  background: rgba(13, 107, 99, 0.06);
  color: var(--ink);
}

.kv-cache-demo__roadmap {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
}

.kv-cache-demo__roadmap-step {
  position: relative;
  min-height: 2.7rem;
  padding: 0.48rem 0.55rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink-muted);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.79rem;
  font-weight: 700;
  line-height: 1.25;
  display: grid;
  align-items: center;
}

.kv-cache-demo__roadmap-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -0.42rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.92rem;
  color: rgba(31, 38, 48, 0.34);
}

.kv-cache-demo__layout {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.kv-cache-demo__stage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1.15fr) auto minmax(0, 1fr);
  gap: 0.9rem;
  align-items: stretch;
}

.kv-cache-demo__panel,
.kv-cache-demo__math-card,
.kv-cache-demo__summary-card {
  padding: 0.95rem 1rem;
  border-radius: var(--radius-small);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease,
    opacity 180ms ease, transform 180ms ease;
}

.kv-cache-demo__panel-title {
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.kv-cache-demo__stack {
  display: grid;
  gap: 0.55rem;
}

.kv-cache-demo__chip,
.kv-cache-demo__mini-chip,
.kv-cache-demo__token,
.kv-cache-demo__score-token {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.85rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
  background: rgba(17, 24, 39, 0.04);
  color: var(--ink);
  font-weight: 700;
}

.kv-cache-demo__chip {
  min-height: 2.6rem;
}

.kv-cache-demo__chip--new {
  display: none;
}

.kv-cache-demo__flight-chip {
  position: fixed;
  z-index: 40;
  pointer-events: none;
  border-radius: 0.85rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
  box-shadow: 0 16px 30px rgba(31, 38, 48, 0.16);
  font-weight: 700;
  transition: transform 760ms cubic-bezier(0.22, 1, 0.36, 1), opacity 760ms ease;
}

.kv-cache-demo__flight-chip--key {
  background: rgba(13, 107, 99, 0.14);
  color: var(--accent-strong);
}

.kv-cache-demo__flight-chip--value {
  background: rgba(93, 90, 163, 0.16);
  color: #4f4a89;
}

.kv-cache-demo__mini-chip--key,
.kv-cache-demo__mini-chip--value {
  opacity: 0.18;
}

.kv-cache-demo__token-row {
  display: grid;
  gap: 0.8rem;
}

.kv-cache-demo__compute-cost {
  margin-top: 0.85rem;
  padding: 0.8rem 0.9rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(191, 90, 54, 0.16);
  background: rgba(191, 90, 54, 0.06);
}

.kv-cache-demo__compute-label {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8f3a1f;
}

.kv-cache-demo__projection-list {
  display: grid;
  gap: 0.5rem;
}

.kv-cache-demo__projection-chip {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 2.2rem;
  padding: 0.45rem 0.7rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(31, 38, 48, 0.12);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink);
  font-weight: 700;
  gap: 0.45rem;
  font-family: "IBM Plex Mono", monospace;
}

.kv-cache-demo__projection-source,
.kv-cache-demo__projection-matrix {
  color: var(--ink);
}

.kv-cache-demo__projection-symbol {
  color: var(--ink-muted);
}

.kv-cache-demo__projection-result {
  color: var(--accent-strong);
}

.kv-cache-demo__cost-note {
  margin: 0.7rem 0 0;
  color: var(--ink);
  line-height: 1.5;
}

.kv-cache-demo__token {
  min-height: 2.8rem;
  background: rgba(13, 107, 99, 0.08);
  color: var(--accent-strong);
}

.kv-cache-demo__mini-stack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.kv-cache-demo__mini-chip {
  min-height: 2.55rem;
}

.kv-cache-demo__mini-chip--query {
  background: rgba(191, 90, 54, 0.12);
  color: #8f3a1f;
}

.kv-cache-demo__mini-chip--key {
  background: rgba(13, 107, 99, 0.1);
  color: var(--accent-strong);
}

.kv-cache-demo__mini-chip--value {
  background: rgba(93, 90, 163, 0.12);
  color: #4f4a89;
}

.kv-cache-demo__arrow {
  display: grid;
  place-items: center;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 1.8rem;
  color: rgba(31, 38, 48, 0.48);
}

.kv-cache-demo__math {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.kv-cache-demo__math-card {
  display: none;
}

.kv-cache-demo__score-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.kv-cache-demo__score-token {
  min-height: 2.55rem;
  padding: 0.45rem 0.7rem;
}

.kv-cache-demo__score-token--query {
  background: rgba(191, 90, 54, 0.12);
  color: #8f3a1f;
}

.kv-cache-demo__score-token--scores {
  background: rgba(13, 107, 99, 0.1);
  color: var(--accent-strong);
}

.kv-cache-demo [data-kv-match-fresh] {
  background: rgba(191, 90, 54, 0.08);
  color: #8f3a1f;
}

.kv-cache-demo__score-token--output {
  background: rgba(93, 90, 163, 0.12);
  color: #4f4a89;
}

.kv-cache-demo__score-symbol {
  font-family: "IBM Plex Mono", monospace;
  font-size: 1rem;
  color: var(--ink-muted);
}

.kv-cache-demo__summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.kv-cache-demo__summary-card {
  background: rgba(248, 245, 238, 0.76);
  border-style: dashed;
}

.kv-cache-demo__result {
  margin: 0;
  color: var(--ink);
  line-height: 1.55;
}

.kv-cache-demo[data-kv-phase="compute"] [data-kv-panel]:not([data-kv-panel="compute"]):not([data-kv-panel="score"]),
.kv-cache-demo[data-kv-phase="append"] [data-kv-panel]:not([data-kv-panel="keys"]):not([data-kv-panel="values"]),
.kv-cache-demo[data-kv-phase="score"] [data-kv-panel]:not([data-kv-panel="score"]),
.kv-cache-demo[data-kv-phase="output"] [data-kv-panel]:not([data-kv-panel="output"]),
.kv-cache-demo[data-kv-phase="match"] [data-kv-panel]:not([data-kv-panel="keys"]):not([data-kv-panel="values"]):not([data-kv-panel="compute"]):not([data-kv-panel="match"]) {
  opacity: 0.58;
}

.kv-cache-demo[data-kv-phase="compute"] [data-kv-panel="compute"],
.kv-cache-demo[data-kv-phase="compute"] [data-kv-panel="score"],
.kv-cache-demo[data-kv-phase="compute"] [data-kv-roadmap="compute"],
.kv-cache-demo[data-kv-phase="append"] [data-kv-panel="keys"],
.kv-cache-demo[data-kv-phase="append"] [data-kv-panel="values"],
.kv-cache-demo[data-kv-phase="append"] [data-kv-roadmap="append"],
.kv-cache-demo[data-kv-phase="score"] [data-kv-panel="score"],
.kv-cache-demo[data-kv-phase="score"] [data-kv-roadmap="score"],
.kv-cache-demo[data-kv-phase="output"] [data-kv-panel="output"],
.kv-cache-demo[data-kv-phase="output"] [data-kv-roadmap="output"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-panel="compute"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-panel="keys"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-panel="values"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-panel="match"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-roadmap="match"] {
  border-color: rgba(13, 107, 99, 0.28);
  background: rgba(13, 107, 99, 0.08);
  box-shadow: 0 10px 24px rgba(13, 107, 99, 0.08);
}

.kv-cache-demo[data-kv-phase="compute"] [data-kv-roadmap="compute"],
.kv-cache-demo[data-kv-phase="append"] [data-kv-roadmap="append"],
.kv-cache-demo[data-kv-phase="score"] [data-kv-roadmap="score"],
.kv-cache-demo[data-kv-phase="output"] [data-kv-roadmap="output"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-roadmap="match"] {
  color: var(--accent-strong);
}

.kv-cache-demo__compute-cost[hidden],
.kv-cache-demo[data-kv-phase="score"] .kv-cache-demo__compute-cost,
.kv-cache-demo[data-kv-phase="output"] .kv-cache-demo__compute-cost,
.kv-cache-demo[data-kv-phase="match"] .kv-cache-demo__compute-cost {
  display: none;
}

.kv-cache-demo[data-kv-phase="compute"] .kv-cache-demo__compute-cost {
  border-color: rgba(191, 90, 54, 0.28);
  background: rgba(191, 90, 54, 0.09);
  box-shadow: inset 0 0 0 1px rgba(191, 90, 54, 0.08);
}

.kv-cache-demo[data-kv-phase="compute"] [data-kv-panel="score"],
.kv-cache-demo[data-kv-phase="score"] [data-kv-panel="score"],
.kv-cache-demo[data-kv-phase="output"] [data-kv-panel="output"],
.kv-cache-demo[data-kv-phase="match"] [data-kv-panel="match"] {
  display: grid;
  gap: 0.85rem;
}

.kv-cache-demo[data-kv-phase="compute"] [data-kv-panel="score"] .kv-cache-demo__score-row {
  display: none;
}

.kv-cache-demo[data-kv-phase="compute"] .kv-cache-demo__mini-chip--query,
.kv-cache-demo[data-kv-phase="compute"] .kv-cache-demo__mini-chip--key,
.kv-cache-demo[data-kv-phase="compute"] .kv-cache-demo__mini-chip--value,
.kv-cache-demo[data-kv-phase="append"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="append"] .kv-cache-demo__mini-chip--key,
.kv-cache-demo[data-kv-phase="append"] .kv-cache-demo__mini-chip--value,
.kv-cache-demo[data-kv-phase="score"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="score"] .kv-cache-demo__mini-chip--query,
.kv-cache-demo[data-kv-phase="output"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="output"] .kv-cache-demo__mini-chip--query,
.kv-cache-demo[data-kv-phase="match"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="match"] .kv-cache-demo__mini-chip--query {
  opacity: 1;
}

.kv-cache-demo[data-kv-phase="append"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="score"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="output"] .kv-cache-demo__chip--new,
.kv-cache-demo[data-kv-phase="match"] .kv-cache-demo__chip--new {
  display: inline-flex;
}

.kv-cache-demo[data-kv-phase="append"][data-kv-append-animating="true"] .kv-cache-demo__chip--new {
  visibility: hidden;
  opacity: 0;
}

.kv-cache-demo[data-kv-phase="append"][data-kv-append-animating="true"] .kv-cache-demo__mini-chip--key,
.kv-cache-demo[data-kv-phase="append"][data-kv-append-animating="true"] .kv-cache-demo__mini-chip--value {
  opacity: 0.38;
}

.kv-cache-demo[data-kv-phase="match"] [data-kv-new-key],
.kv-cache-demo[data-kv-phase="match"] [data-kv-new-value],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-query],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-fresh],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-key],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-score],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-weight],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-value],
.kv-cache-demo[data-kv-phase="match"] [data-kv-match-output] {
  box-shadow: inset 0 0 0 1px rgba(13, 107, 99, 0.24);
  background: rgba(13, 107, 99, 0.12);
}

.kv-cache-demo[data-kv-phase="score"] .kv-cache-demo__score-token--query,
.kv-cache-demo[data-kv-phase="score"] .kv-cache-demo__score-token--scores,
.kv-cache-demo[data-kv-phase="output"] .kv-cache-demo__score-token--scores,
.kv-cache-demo[data-kv-phase="output"] .kv-cache-demo__score-token--output {
  box-shadow: inset 0 0 0 1px rgba(13, 107, 99, 0.24);
}

.kv-cache-demo figcaption {
  margin-top: 0.95rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}