@font-face {
  font-family: "Waldenburg";
  src: url("../fonts/Waldenburg-Book.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Waldenburg Display";
  src: url("../fonts/Waldenburg-Halbschmal-Book.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

@font-face {
  font-family: "Waldenburg Display";
  src: url("../fonts/Waldenburg-Halbschmal-Semibold.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 600;
}

:root {
  --trace-white: #ffffff;
  --trace-ink: #0e0e0f;
  --trace-paper: #fbfaf7;
  --trace-border: rgba(14, 14, 15, 0.12);
  --trace-border-strong: rgba(14, 14, 15, 0.24);
  --trace-muted: rgba(14, 14, 15, 0.62);
  --trace-soft: rgba(14, 14, 15, 0.03);
  --trace-soft-dark: rgba(255, 255, 255, 0.08);
  --trace-accent: #c37562;
  --trace-accent-soft: rgba(195, 117, 98, 0.12);
  --trace-shadow: 0 0 0 rgba(14, 14, 15, 0);
  --trace-body-font: "Waldenburg", "Aptos", "Helvetica Neue", Arial, sans-serif;
  --trace-display-font: "Waldenburg Display", "Franklin Gothic Medium", "Arial Narrow", sans-serif;
  --trace-masthead-height: clamp(4rem, 12vw, 6rem);
  --trace-section-top-gap: clamp(1rem, 2.5vw, 1.5rem);
  --trace-panel-top-offset: calc(var(--trace-masthead-height) + var(--trace-section-top-gap));
}

html {
  scroll-behavior: smooth;
  background: var(--trace-white);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--trace-ink);
  background: var(--trace-white);
  font-family: var(--trace-body-font);
  line-height: 1.4;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

trace-presentation-app,
trace-section,
trace-markdown,
trace-image-reveal,
trace-bar-chart,
trace-desktop-nav {
  display: block;
}

.trace-shell {
  position: relative;
}

.trace-masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  overflow: clip;
  border-bottom: 1px dotted var(--trace-border-strong);
  background: rgba(255, 255, 255, 0.96);
  transition: background 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
}

.trace-masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  padding-top: 1.2rem;
  padding-bottom: 1.1rem;
  transition: gap 260ms ease, padding 260ms ease, transform 260ms ease;
}

.trace-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
  transition: transform 260ms ease, opacity 260ms ease;
}

.trace-brand__mark {
  font-family: var(--trace-display-font);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: font-size 260ms ease, letter-spacing 260ms ease;
}

.trace-brand__dot {
  width: 0.38rem;
  height: 0.38rem;
  border-radius: 999px;
  background: currentColor;
  opacity: 0.55;
}

.trace-masthead__meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
  transition: gap 260ms ease;
}

.trace-masthead__eyebrow,
.trace-section__eyebrow,
.trace-overlay__eyebrow {
  margin: 0;
  font-family: var(--trace-display-font);
  color: var(--trace-muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.trace-masthead__title {
  margin: 0;
  font-family: var(--trace-display-font);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.025em;
  text-wrap: balance;
  transition: font-size 260ms ease, letter-spacing 260ms ease, transform 260ms ease;
}

.trace-masthead__description {
  max-width: 34rem;
  margin: 0;
  font-family: var(--trace-display-font);
  color: var(--trace-muted);
  font-size: 1rem;
  line-height: 1.35;
}

.trace-masthead__eyebrow,
.trace-masthead__description {
  transform-origin: top left;
  transition:
    opacity 220ms ease,
    transform 260ms ease,
    max-height 260ms ease,
    margin 260ms ease;
}

.trace-masthead__eyebrow {
  max-height: 1.4rem;
  overflow: hidden;
}

.trace-masthead__description {
  max-height: 5rem;
  overflow: hidden;
}

.trace-masthead--compact {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0.4rem 1.2rem rgba(14, 14, 15, 0.06);
}

.trace-masthead--compact .trace-masthead__inner {
  gap: 1rem;
  padding-top: 0.7rem;
  padding-bottom: 0.68rem;
}

.trace-masthead--compact .trace-brand {
  transform: translateY(-0.08rem);
}

.trace-masthead--compact .trace-brand__mark {
  font-size: 0.88rem;
  letter-spacing: 0.14em;
}

.trace-masthead--compact .trace-masthead__meta {
  gap: 0;
}

.trace-masthead--compact .trace-masthead__title {
  font-size: clamp(1.3rem, 2.1vw, 1.8rem);
  transform: translateY(-0.06rem);
}

.trace-masthead--compact .trace-masthead__eyebrow,
.trace-masthead--compact .trace-masthead__description {
  opacity: 0;
  max-height: 0;
  margin: 0;
  transform: translateY(-0.9rem);
  pointer-events: none;
}

.trace-sections {
  padding-bottom: 20vh;
}

.trace-panel {
  position: relative;
  min-height: 100svh;
  padding-top: var(--trace-panel-top-offset);
  padding-bottom: clamp(2rem, 7vw, 4rem);
  scroll-snap-align: start;
}

.trace-sections > trace-section:first-child .trace-panel {
  scroll-snap-align: none;
}

.trace-panel__shell {
  display: flex;
  align-items: center;
  min-height: calc(100svh - 7rem);
}

.trace-panel__shell--full {
  min-height: calc(100svh - 5rem);
}

.trace-panel--dark {
  color: var(--trace-white);
}

.trace-panel--dark .trace-section__eyebrow,
.trace-panel--dark .trace-section__kicker,
.trace-panel--dark .trace-markdown,
.trace-panel--dark .trace-column__body,
.trace-panel--dark .trace-column__title,
.trace-panel--dark .trace-overlay__body {
  color: rgba(255, 255, 255, 0.88);
}

.trace-panel--dark .trace-panel__surface {
  border-top-color: rgba(255, 255, 255, 0.22);
  background: transparent;
}

.trace-panel__surface {
  width: 100%;
  border-top: 1px dotted var(--trace-border-strong);
  background: transparent;
  box-shadow: var(--trace-shadow);
}

.trace-panel__surface--padded {
  padding: clamp(1rem, 2vw, 1.4rem) 0 0;
}

.trace-section__header {
  /* max-width: 44rem; */
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.trace-section__title,
.trace-overlay__title {
  margin: 0;
  max-width: 49%;
  font-family: var(--trace-display-font);
  font-size: clamp(2.2rem, 6vw, 3rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.trace-section__kicker {
  /* max-width: 34rem; */
  margin-top: 0.7rem;
  font-family: var(--trace-display-font);
  color: var(--trace-ink);
  font-size: clamp(1.08rem, 2vw, 1.42rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.trace-markdown {
  color: var(--trace-ink);
  font-family: var(--trace-display-font);
  font-size: clamp(1rem, 1.55vw, 1.22rem);
  line-height: 1.45;
  letter-spacing: 0;
  /* max-width: 38rem; */
}

.trace-markdown p:last-child,
.trace-markdown ul:last-child {
  margin-bottom: 0;
}

.trace-markdown p,
.trace-markdown ul {
  margin-bottom: 1rem;
}

.trace-markdown ul {
  padding-left: 1.15rem;
}

.trace-markdown li + li {
  margin-top: 0.45rem;
}

.trace-markdown a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.trace-aside,
.trace-footnote,
.trace-chart-notes,
.trace-summary-bullets {
  border-top: 1px dotted var(--trace-border-strong);
  padding-top: 1rem;
}

.trace-footnote,
.trace-chart-notes {
  font-family: var(--trace-display-font);
  color: var(--trace-muted);
  font-size: 0.92rem;
}

.trace-column {
  height: 100%;
  padding: 1rem 0 0.25rem;
  border-top: 1px dotted var(--trace-border-strong);
}

.trace-column__title {
  margin: 0 0 0.75rem;
  font-family: var(--trace-display-font);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: -0.015em;
}

.trace-column__body {
  font-family: var(--trace-display-font);
  color: var(--trace-muted);
  font-size: 1.02rem;
  line-height: 1.45;
}

.trace-image-shell,
.trace-chart-shell {
  margin: 0;
}

.trace-image-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: var(--trace-aspect-ratio, 16 / 9);
  border: 1px solid var(--trace-border);
  background:
    linear-gradient(135deg, rgba(195, 117, 98, 0.08), rgba(14, 14, 15, 0.02) 34%, rgba(14, 14, 15, 0.06) 100%),
    #f4efe7;
}

.trace-image-frame.is-dark {
  border-color: rgba(255, 255, 255, 0.16);
}

.trace-image-frame.is-clickable {
  cursor: pointer;
}

.trace-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  filter: blur(calc((1 - var(--trace-reveal-progress, 1)) * 16px))
    saturate(calc(0.85 + (var(--trace-reveal-progress, 1) * 0.3)))
    contrast(calc(0.82 + (var(--trace-reveal-progress, 1) * 0.18)));
  transform: scale(calc(1.03 - (var(--trace-reveal-progress, 1) * 0.03)));
  transition: filter 320ms ease, transform 320ms ease, opacity 320ms ease;
}

.trace-image-frame[data-reveal-type="none"] .trace-image,
.trace-image-frame[data-reveal-type="tile"] .trace-image,
.trace-image-frame[data-reveal-type="layers"] .trace-image {
  filter: none;
  transform: none;
}

.trace-image-frame[data-reveal-type="pixelate"] .trace-image {
  image-rendering: pixelated;
}

.trace-image-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.trace-image-overlay--tile {
  display: grid;
  grid-template-columns: repeat(var(--trace-grid-size, 6), 1fr);
  grid-template-rows: repeat(var(--trace-grid-size, 6), 1fr);
}

.trace-image-overlay--tile .trace-reveal-tile {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(135deg, rgba(14, 14, 15, 0.92), rgba(14, 14, 15, 0.7)),
    linear-gradient(180deg, rgba(215, 105, 59, 0.16), transparent);
  opacity: 1;
  transition: opacity 240ms ease;
}

.trace-image-overlay--layers {
  display: grid;
  grid-template-rows: repeat(var(--trace-layer-count, 6), 1fr);
}

.trace-image-overlay--layers .trace-reveal-layer {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(90deg, rgba(14, 14, 15, 0.9), rgba(14, 14, 15, 0.6) 50%, rgba(215, 105, 59, 0.18));
  opacity: 1;
  transition: transform 260ms ease, opacity 260ms ease;
}

.trace-image-frame.is-dark .trace-image-overlay--tile .trace-reveal-tile,
.trace-image-frame.is-dark .trace-image-overlay--layers .trace-reveal-layer {
  background: linear-gradient(90deg, rgba(14, 14, 15, 0.92), rgba(14, 14, 15, 0.75) 55%, rgba(255, 255, 255, 0.06));
}

.trace-reveal-tile.is-cleared,
.trace-reveal-layer.is-cleared {
  opacity: 0;
}

.trace-reveal-layer.is-cleared {
  transform: translateX(7%);
}

.trace-image-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    linear-gradient(135deg, rgba(14, 14, 15, 0.9), rgba(14, 14, 15, 0.75)),
    linear-gradient(135deg, rgba(215, 105, 59, 0.22), transparent);
  color: var(--trace-white);
  text-align: center;
}

.trace-image-placeholder[hidden] {
  display: none;
}

.trace-image-placeholder__label {
  margin: 0 0 0.5rem;
  font-family: var(--trace-display-font);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.trace-image-placeholder__path {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  word-break: break-word;
}

.trace-image-caption {
  margin-top: 0.7rem;
  color: var(--trace-muted);
  font-size: 0.9rem;
}

.trace-chart-frame {
  border: 1px solid var(--trace-border);
  background: var(--trace-white);
  padding: 1rem;
  min-height: 25rem;
}

trace-bar-chart.trace-bar-chart--borderless .trace-chart-frame {
  border: 0;
}

.trace-chart-canvas {
  width: 100%;
  min-height: 22rem;
}

.trace-chart-fallback {
  display: grid;
  place-items: center;
  min-height: 22rem;
  color: var(--trace-muted);
  text-align: center;
}

.trace-full-bleed {
  position: relative;
  overflow: hidden;
}

.trace-full-bleed .trace-image-frame {
  aspect-ratio: auto;
  min-height: calc(100svh - 5rem);
}

.trace-overlay {
  position: absolute;
  left: clamp(1rem, 4vw, 2.5rem);
  right: clamp(1rem, 6vw, 4rem);
  bottom: clamp(1rem, 4vw, 2.5rem);
  max-width: min(34rem, 88%);
  padding: clamp(1rem, 2vw, 1.5rem);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(14, 14, 15, 0.72);
  color: var(--trace-white);
}

.trace-overlay__body {
  margin: 0.65rem 0 0;
  font-family: var(--trace-display-font);
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.08rem;
  line-height: 1.4;
}

.trace-summary-bullets {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.trace-summary-bullets li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.75rem 0;
  border-top: 1px dotted var(--trace-border-strong);
}

.trace-summary-bullets li:first-child {
  border-top: 0;
}

.trace-summary-bullets li::before {
  content: "";
  flex: 0 0 0.45rem;
  width: 0.45rem;
  height: 0.45rem;
  margin-top: 0.35rem;
  border-radius: 999px;
  background: var(--trace-accent);
}

.trace-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 1.25rem;
  padding: 0;
  border: 0;
  color: var(--trace-muted);
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.32em;
  font-family: var(--trace-display-font);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.trace-cta:hover,
.trace-cta:focus-visible {
  color: var(--trace-ink);
}

.trace-error {
  border: 1px solid rgba(215, 105, 59, 0.35);
  background: linear-gradient(180deg, rgba(215, 105, 59, 0.08), rgba(255, 255, 255, 0.82));
  padding: 1.25rem;
}

.trace-error__title {
  margin: 0 0 0.65rem;
  font-family: var(--trace-display-font);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.trace-error__list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--trace-muted);
}

.trace-nav {
  position: fixed;
  left: 50%;
  bottom: clamp(1rem, 2.4vw, 1.75rem);
  z-index: 40;
  transform: translateX(-50%);
  width: min(46rem, calc(100vw - 2rem));
}

.trace-nav__panel {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.9rem;
  /* min-height: 4.3rem; */
  padding: 0.65rem 0.95rem 0.8rem;
  border: 1px solid var(--trace-border);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--trace-shadow);
  backdrop-filter: blur(14px);
}

.trace-nav__title {
  margin: 0;
  font-family: var(--trace-display-font);
  font-size: 1.02rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.015em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.trace-nav__counter {
  margin: 0.18rem 0 0;
  font-family: var(--trace-display-font);
  color: var(--trace-muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.trace-nav__meta {
  min-width: 0;
  text-align: center;
}

.trace-nav__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--trace-border-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--trace-ink);
  transition:
    transform 180ms ease,
    background-color 180ms ease,
    color 180ms ease,
    opacity 180ms ease,
    border-color 180ms ease;
}

.trace-nav__button:hover:not(:disabled),
.trace-nav__button:focus-visible:not(:disabled) {
  background: var(--trace-ink);
  color: var(--trace-white);
  transform: translateY(-1px);
  border-color: var(--trace-ink);
}

.trace-nav__button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.trace-nav__icon {
  width: 0.72rem;
  height: 0.72rem;
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
}

.trace-nav__icon--left {
  transform: rotate(135deg);
  margin-left: 0.18rem;
}

.trace-nav__icon--right {
  transform: rotate(-45deg);
  margin-right: 0.18rem;
}

.trace-nav__progress {
  position: absolute;
  right: 0.95rem;
  bottom: 0.35rem;
  left: 0.95rem;
  height: 0.2rem;
  background: rgba(14, 14, 15, 0.08);
}

.trace-nav__progress-bar {
  height: 100%;
  width: calc(var(--trace-nav-progress, 0) * 100%);
  background: var(--trace-accent);
  transition: width 220ms ease;
}

.visually-hidden-focusable:not(:focus):not(:focus-within) {
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  position: absolute !important;
  white-space: nowrap !important;
}

@media (min-width: 992px) {
  html {
    scroll-snap-type: y proximity;
  }

  .trace-panel__surface--split {
    padding-right: 3rem;
  }
}

@media (max-width: 991.98px) {
  .trace-section__title,
  .trace-overlay__title {
    max-width: 100%;
  }

  .trace-masthead__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .trace-masthead--compact .trace-masthead__inner {
    align-items: center;
    flex-direction: row;
  }

  .trace-masthead--compact .trace-masthead__title {
    font-size: clamp(1.1rem, 4.8vw, 1.45rem);
    text-wrap: pretty;
  }

  .trace-nav {
    width: min(20rem, calc(100vw - 1rem));
    bottom: 0.75rem;
  }

  .trace-nav__panel {
    gap: 0.7rem;
    min-height: 4rem;
    padding: 0.6rem 0.75rem 0.75rem;
  }

  .trace-nav__title {
    font-size: 0.9rem;
  }

  .trace-nav__counter {
    font-size: 0.68rem;
  }

  .trace-panel {
    min-height: auto;
  }

  .trace-panel__shell,
  .trace-panel__shell--full,
  .trace-full-bleed .trace-image-frame {
    min-height: auto;
  }

  .trace-overlay {
    position: static;
    max-width: none;
    margin-top: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}