/**
 * Product marketing home — thin layer on landings rhythm.
 * Visual contract stays in Caustica Design tokens / component classes.
 */

/*
 * Nav is a sibling above .lp-stage so sticky can pin for the full page.
 * (Sticky inside a short stage dies when the hero ends.)
 * Caustic extends upward under the island so nav + hero still share one field.
 */
.lp > .ui-navbar--sticky.ui-navbar--island {
  /* Keep above page content; island already sets z-index 50 — reinforce vs. stage. */
  z-index: 50;
}

/* Hash targets clear the sticky island instead of landing under it. */
.lp .lp-section[id] {
  scroll-margin-top: calc(5.25rem + env(safe-area-inset-top, 0px));
}

.lp-stage {
  /*
    Must match in-flow sticky island height (pad-block + inner + controls).
    4.75rem undershot (~76px vs ~82px) and left a dark strip above the caustic.
  */
  --lp-nav-underlap: 5.25rem;
  position: relative;
  isolation: isolate;
  /* Don’t set overflow:hidden here — it breaks sticky island. */
  /* Pull stage up so the caustic sits under the in-flow sticky island. */
  margin-block-start: calc(-1 * var(--lp-nav-underlap));
  /*
    Stable viewport height — not 100dvh. Dynamic vh grows/shrinks when mobile
    URL bars show or hide; resizing this stage after scroll-stop reads as a
    snap and fights the hero caustic layers.
  */
  min-height: 100vh;
  min-height: 100svh;
}

.lp-stage .lp-caustic {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  /* Size query so the rotating mark can cover the field at any angle. */
  container-type: size;
  /* Hero field only — paint containment; doesn’t touch brand-mark favicon. */
  contain: paint;
  transform: translateZ(0);
}

/*
  Thin hero: brand + one line + CTAs.
  Absolute over the stage so flex-center lands on the viewport midpoint
  (not shifted down by nav underlap / asymmetric padding).
*/
.lp-stage > .lp-hero {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 0;
  padding: 0 var(--ca-space-4);
  text-align: center;
}

.lp-stage .lp-hero__copy {
  /* Wide enough for mark + full “Caustica Design” at --lp-brand-size. */
  max-width: min(42rem, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lp-stage .lp-hero__brand-row {
  /*
    Cap type so the full title fits the copy column. Landings’ 5.5rem max
    overflowed 28rem and chopped background-clip:text mid-glyph.
  */
  --lp-brand-size: clamp(1.7rem, 2.6vw + 0.85rem, 3.1rem);
  justify-content: center;
  max-width: 100%;
  width: max-content;
}

.lp-stage .lp-hero__brand {
  /* Don’t flex-shrink the gradient title — clipped fill reads as chopped letters. */
  flex-shrink: 0;
  min-width: max-content;
  max-width: none;
}

.lp-stage .lp-hero__brand .brand-title,
.lp-stage .lp-hero__brand .brand-title__text {
  max-width: none;
}

.lp-stage .lp-hero__lede {
  max-width: 22rem;
  margin-inline: auto;
  margin-block-end: var(--ca-space-5);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--text);
}

.lp-stage .lp-hero__actions {
  justify-content: center;
}

/* Kill landings hero wash so nav + hero share one color field. */
.lp-stage .lp-hero::before {
  content: none;
}

@media (max-height: 40rem) {
  .lp-stage > .lp-hero {
    justify-content: flex-end;
    padding-block-end: var(--ca-space-10);
  }
}

.lp-caustic__mark.brand-mark {
  /*
    Cover the field’s diagonal with modest headroom. Larger than ~125cqmax
    + multi-layer spins was a GPU failure mode on mobile (dropped frames /
    frozen layers that looked like a “broken” hero).
  */
  position: absolute;
  inset: auto;
  top: 50%;
  left: 50%;
  width: 125cqmax;
  height: 125cqmax;
  max-width: none;
  max-height: none;
  border-radius: 0;
  opacity: 1;
  filter: none;
  transform: translate(-50%, -50%);
}

/*
  Dark hero field: static gradients; at most one compositor transform loop.
  No will-change / animated filters — those promote huge layers that fail
  under memory pressure on phones.
*/
.lp-caustic__mark .brand-mark__pulse {
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  border-radius: 0;
  transform: translateZ(0);
  opacity: 0.78;
  mix-blend-mode: soft-light;
  filter: none;
  background:
    radial-gradient(
      ellipse 58% 44% at 24% 30%,
      color-mix(in oklab, var(--ca-caustic-sky-bright) 88%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-sky-mid) 48%, transparent) 36%,
      transparent 72%
    ),
    radial-gradient(
      ellipse 48% 58% at 78% 58%,
      color-mix(in oklab, var(--ca-caustic-violet-mid) 78%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-indigo) 42%, transparent) 42%,
      transparent 74%
    ),
    radial-gradient(
      ellipse 42% 36% at 48% 82%,
      color-mix(in oklab, var(--ca-caustic-amber-hot) 70%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-orange-hot) 38%, transparent) 44%,
      transparent 72%
    );
  background-size: 160% 150%, 170% 160%, 150% 140%;
  background-position: 18% 62%, 82% 34%, 44% 88%;
}

.lp-caustic__mark .brand-mark__pulse::before {
  inset: -20%;
  border-radius: 0;
  opacity: 0.55;
  mix-blend-mode: screen;
  transform: translateZ(0) rotate(-12deg) scale(1.04);
  background: conic-gradient(
    from 210deg at 45% 40%,
    transparent 0deg,
    color-mix(in oklab, var(--ca-caustic-ice) 70%, transparent) 24deg,
    color-mix(in oklab, var(--ca-caustic-cyan) 58%, transparent) 48deg,
    transparent 78deg,
    color-mix(in oklab, var(--ca-caustic-violet) 52%, transparent) 132deg,
    color-mix(in oklab, var(--ca-caustic-amber) 48%, transparent) 168deg,
    transparent 200deg,
    color-mix(in oklab, var(--ca-caustic-teal) 46%, transparent) 250deg,
    color-mix(in oklab, var(--ca-caustic-rose) 40%, transparent) 280deg,
    transparent 310deg
  );
}

/* Static specular — animated glint (nested counter-rotate) was the flakiest layer. */
.lp-caustic__mark .brand-mark__pulse::after {
  width: 42%;
  height: 16%;
  left: 0;
  top: 0;
  filter: none;
  opacity: 0.75;
  transform: translate(12%, 42%) rotate(18deg) translateX(12%) scale(0.92);
  background: linear-gradient(
    115deg,
    transparent 10%,
    color-mix(in oklab, #ffffff 92%, transparent) 38%,
    color-mix(in oklab, var(--ca-caustic-sky-bright) 70%, transparent) 52%,
    color-mix(in oklab, var(--ca-caustic-violet) 48%, transparent) 62%,
    transparent 88%
  );
}

/*
  Light field: soft-light/screen + pale whites vanish on near-white bg.
  Multiply deeper mid-chroma inks so pools and rotation read like dark mode.
*/
html[data-theme='light'] .lp-caustic__mark .brand-mark__pulse {
  opacity: 0.88;
  mix-blend-mode: multiply;
  filter: none;
  background:
    radial-gradient(
      ellipse 58% 44% at 24% 30%,
      color-mix(in oklab, var(--ca-caustic-sky-ink) 62%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-sky-mid) 36%, transparent) 38%,
      transparent 72%
    ),
    radial-gradient(
      ellipse 48% 58% at 78% 58%,
      color-mix(in oklab, var(--ca-caustic-indigo-ink) 58%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-violet-mid) 32%, transparent) 42%,
      transparent 74%
    ),
    radial-gradient(
      ellipse 42% 36% at 48% 82%,
      color-mix(in oklab, var(--ca-caustic-amber-ink) 50%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-amber-mid) 28%, transparent) 45%,
      transparent 72%
    );
}

html[data-theme='light'] .lp-caustic__mark .brand-mark__pulse::before {
  opacity: 0.65;
  mix-blend-mode: multiply;
  background: conic-gradient(
    from 210deg at 45% 40%,
    transparent 0deg,
    color-mix(in oklab, var(--ca-caustic-sky-ink-deep) 55%, transparent) 28deg,
    color-mix(in oklab, var(--ca-caustic-sky-ink-bright) 38%, transparent) 52deg,
    transparent 78deg,
    color-mix(in oklab, var(--ca-caustic-violet-ink) 48%, transparent) 140deg,
    color-mix(in oklab, var(--ca-caustic-amber-brown) 36%, transparent) 168deg,
    transparent 200deg,
    color-mix(in oklab, var(--ca-caustic-teal-ink) 42%, transparent) 260deg,
    transparent 300deg
  );
}

html[data-theme='light'] .lp-caustic__mark .brand-mark__pulse::after {
  opacity: 0.8;
  background: linear-gradient(
    115deg,
    transparent 10%,
    color-mix(in oklab, var(--ca-caustic-sky-ink-deeper) 65%, transparent) 42%,
    color-mix(in oklab, var(--ca-caustic-indigo-ink-deep) 48%, transparent) 58%,
    transparent 88%
  );
}

.lp-caustic__mark .brand-mark__caustic {
  inset: -12%;
  border-radius: 0;
  opacity: 0.5;
  mix-blend-mode: soft-light;
  filter: none;
  transform: translateZ(0);
  background:
    radial-gradient(
      ellipse 40% 30% at 58% 26%,
      color-mix(in oklab, var(--ca-caustic-rose-hot) 58%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-rose) 28%, transparent) 40%,
      transparent 68%
    ),
    radial-gradient(
      ellipse 32% 38% at 26% 70%,
      color-mix(in oklab, var(--ca-caustic-teal-bright) 55%, transparent) 0%,
      color-mix(in oklab, var(--ca-caustic-teal) 28%, transparent) 42%,
      transparent 70%
    );
  background-size: auto;
  background-position: center;
}

html[data-theme='light'] .lp-caustic__mark .brand-mark__caustic {
  opacity: 0.68;
  mix-blend-mode: multiply;
  filter: none;
  background:
    radial-gradient(
      ellipse 40% 30% at 58% 26%,
      color-mix(in oklab, var(--ca-caustic-rose-ink) 52%, transparent) 0%,
      transparent 65%
    ),
    radial-gradient(
      ellipse 32% 38% at 26% 70%,
      color-mix(in oklab, var(--ca-caustic-teal-ink) 50%, transparent) 0%,
      transparent 68%
    );
}

/* Soft pause when stage is offscreen (resume keeps timeline position). */
.lp-caustic.is-paused .brand-mark__pulse,
.lp-caustic.is-paused .brand-mark__caustic {
  animation-play-state: paused !important;
}

/*
  Hard stop when the tab is hidden (desktop + mobile). Dropping the animation
  entirely releases compositor layers under GPU pressure; play-state alone
  often keeps them promoted.
*/
.lp-caustic.is-tab-hidden .brand-mark__pulse,
.lp-caustic.is-tab-hidden .brand-mark__pulse::before,
.lp-caustic.is-tab-hidden .brand-mark__pulse::after,
.lp-caustic.is-tab-hidden .brand-mark__caustic {
  animation: none !important;
}

/*
  Hero motion — one slow drift + optional reverse pools on fine pointers.
  Specificity must beat brand.css `.brand-mark:has():not()` loops.
*/
@media (prefers-reduced-motion: no-preference) {
  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__pulse {
    animation: home-caustic-drift 28s linear infinite;
  }

  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__pulse::before,
  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__pulse::after {
    animation: none;
  }

  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__caustic {
    animation: home-caustic-pools 42s linear infinite;
  }

  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__icon {
    animation: none;
  }
}

/* Phones / touch: single slow drift only — pools stay static. */
@media (prefers-reduced-motion: no-preference) and (max-width: 767px),
  (prefers-reduced-motion: no-preference) and (hover: none) and (pointer: coarse) {
  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__pulse {
    animation: home-caustic-drift 36s linear infinite;
  }

  .lp-caustic .lp-caustic__mark.brand-mark:has(.brand-mark__pulse) .brand-mark__caustic {
    animation: none;
  }
}

@keyframes home-caustic-drift {
  from {
    transform: translate3d(-1.5%, -1%, 0) rotate(0deg);
  }
  to {
    transform: translate3d(-1.5%, -1%, 0) rotate(360deg);
  }
}

@keyframes home-caustic-pools {
  from {
    transform: translate3d(1%, -1.5%, 0) rotate(0deg);
  }
  to {
    transform: translate3d(1%, -1.5%, 0) rotate(-360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .lp-caustic__mark .brand-mark__pulse,
  .lp-caustic__mark .brand-mark__pulse::before,
  .lp-caustic__mark .brand-mark__pulse::after,
  .lp-caustic__mark .brand-mark__caustic {
    animation: none !important;
  }
}

.home-showcase {
  position: relative;
  max-width: 36rem;
  margin-inline: auto;
  margin-block-start: var(--ca-space-5);
}

/* Keep heading + demo as one centered composition. */
#showcase .lp-section-title,
#showcase .lp-section-lede {
  text-align: center;
}

#showcase .lp-section-lede {
  margin-inline: auto;
  max-width: 34rem;
}

.home-showcase__glow {
  position: absolute;
  inset: -12% -8% auto;
  height: 55%;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
  background:
    radial-gradient(
      ellipse 70% 60% at 50% 40%,
      color-mix(in oklab, var(--color-accent) 28%, transparent) 0%,
      transparent 72%
    ),
    radial-gradient(
      ellipse 50% 45% at 70% 60%,
      color-mix(in oklab, var(--ca-caustic-cyan) 18%, transparent) 0%,
      transparent 70%
    );
  filter: blur(28px);
  opacity: 0.85;
}

html[data-theme='light'] .home-showcase__glow {
  opacity: 0.55;
  background:
    radial-gradient(
      ellipse 70% 60% at 50% 40%,
      color-mix(in oklab, var(--color-accent) 22%, transparent) 0%,
      transparent 72%
    ),
    radial-gradient(
      ellipse 50% 45% at 70% 60%,
      color-mix(in oklab, var(--ca-caustic-sky-ink) 14%, transparent) 0%,
      transparent 70%
    );
}

.home-showcase__panel {
  position: relative;
  z-index: 1;
}

.home-showcase__progress {
  display: flex;
  flex-direction: column;
  gap: var(--ca-space-2);
  margin-block: var(--ca-space-4) var(--ca-space-5);
}

.home-showcase__progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--ca-space-3);
  font-size: var(--ca-font-size-sm);
  color: var(--muted);
}

.home-showcase__progress-meta span:last-child {
  font-variant-numeric: tabular-nums;
  color: color-mix(in oklab, var(--text) 78%, var(--muted));
}

.home-showcase__tabs {
  margin-block-end: var(--ca-space-5);
}

.home-showcase__tabs .ui-tabs__content {
  margin-block-start: var(--ca-space-3);
  padding: var(--ca-space-4);
}

.home-showcase__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ca-space-3);
  align-items: center;
}

.home-showcase__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ca-space-3);
  align-items: center;
  padding-block-start: var(--ca-space-4);
  border-block-start: 0.5px solid color-mix(in oklab, var(--glass-border) 75%, transparent);
}

/* Toast stack sits in the showcase section — keep it above footer chrome. */
#showcase .toast-stack {
  z-index: 60;
}

/*
  Install — one cohesive code surface with two numbered steps inside,
  not two separate glass cards. Hairline divider between steps, terminal-
  style monospace rows. Showcase below owns the interactive glass panel.
*/
.home-install {
  list-style: none;
  margin: var(--ca-space-6) 0 0;
  padding: 0;
  max-width: 40rem;
  border-radius: var(--ca-radius-md);
  border: 1px solid color-mix(in oklab, var(--glass-border) 80%, transparent);
  background: color-mix(in oklab, var(--glass-fill) 55%, transparent);
  /* Don’t clip code — radius is fine without overflow:hidden. */
  overflow: visible;
}

.home-install__step {
  display: grid;
  gap: var(--ca-space-3);
  padding: var(--ca-space-5);
  min-width: 0;
}

.home-install__step + .home-install__step {
  border-block-start: 0.5px solid color-mix(in oklab, var(--glass-border) 70%, transparent);
}

.home-install__meta {
  display: flex;
  align-items: baseline;
  gap: var(--ca-space-3);
}

.home-install__index {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: var(--ca-font-size-xs);
  letter-spacing: 0.06em;
  color: color-mix(in oklab, var(--color-accent) 75%, var(--muted));
}

.home-install__label {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--ca-font-size-md);
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--text);
}

.home-install__cmd {
  display: flex;
  align-items: flex-start;
  gap: var(--ca-space-3);
  min-width: 0;
}

.home-install__cmd pre {
  margin: 0;
  flex: 1 1 auto;
  min-width: 0;
}

.home-install__cmd code {
  display: block;
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: var(--ca-font-size-sm);
  line-height: 1.45;
  color: var(--text);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.home-install__copy {
  appearance: none;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--ca-space-1);
  border: 1px solid color-mix(in oklab, var(--glass-border) 75%, transparent);
  background: color-mix(in oklab, var(--glass-surface) 60%, transparent);
  color: var(--muted);
  font: inherit;
  font-size: var(--ca-font-size-xs);
  font-weight: 650;
  letter-spacing: 0.01em;
  padding: var(--ca-space-1) var(--ca-space-3);
  border-radius: var(--ca-radius-sm);
  cursor: pointer;
  transition:
    color var(--ca-duration-fast, 0.15s) ease,
    background-color var(--ca-duration-fast, 0.15s) ease,
    border-color var(--ca-duration-fast, 0.15s) ease;
}

@media (prefers-reduced-motion: reduce) {
  .home-install__copy {
    transition: none;
  }
}

.home-install__copy .ui-icon {
  width: 0.85rem;
  height: 0.85rem;
}

.home-install__copy:hover {
  color: var(--text);
  background: color-mix(in oklab, var(--glass-surface-strong) 70%, transparent);
}

.home-install__copy:focus-visible {
  outline: 2px solid var(--color-system-blue);
  outline-offset: 2px;
}

.home-install__copy[data-copied='true'] {
  color: var(--color-system-blue);
  border-color: color-mix(in oklab, var(--color-system-blue) 45%, transparent);
}

.home-install__hint {
  margin: var(--ca-space-4) 0 0;
  max-width: 40rem;
  font-size: var(--ca-font-size-sm);
  color: var(--muted);
}

.home-install__hint code {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.92em;
  color: color-mix(in oklab, var(--text) 82%, var(--muted));
}

.home-install__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ca-space-3);
  margin-block-start: var(--ca-space-5);
}

@media (min-width: 720px) {
  .home-install__step {
    grid-template-columns: minmax(0, 11.5rem) minmax(0, 1fr);
    align-items: start;
    padding-inline: var(--ca-space-6);
  }

  .home-install__meta {
    align-items: center;
    padding-block-start: 0.15em;
  }
}

/*
  Explore — editorial index, not a card grid. Typographic rows with
  hairlines, grouped by intent (Docs to read, Examples to see live).
  No border/background/shadow on the link itself; hover reveals an
  accent rule instead of boxing the row.
*/
.home-explore {
  margin-block-start: var(--ca-space-6);
  display: grid;
  gap: var(--ca-space-6);
}

@media (min-width: 700px) {
  .home-explore {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--ca-space-8);
  }
}

.home-explore__group-title {
  margin: 0 0 var(--ca-space-2);
  font-size: var(--ca-font-size-sm);
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.home-explore__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-block-start: 0.5px solid color-mix(in oklab, var(--glass-border) 85%, transparent);
}

.home-explore__item {
  margin: 0;
  border-bottom: 0.5px solid color-mix(in oklab, var(--glass-border) 70%, transparent);
}

.home-explore__item a {
  display: block;
  padding: var(--ca-space-4) 0 var(--ca-space-4) var(--ca-space-4);
  border-inline-start: 2px solid transparent;
  text-decoration: none;
  color: inherit;
  transition:
    border-color 0.2s ease,
    background-color 0.2s ease;
}

.home-explore__item a:hover,
.home-explore__item a:focus-visible {
  border-inline-start-color: color-mix(in oklab, var(--color-accent) 55%, var(--glass-border));
  background: color-mix(in oklab, var(--glass-fill) 40%, transparent);
}

.home-explore__item a:focus-visible {
  outline: 2px solid var(--color-system-blue);
  outline-offset: -2px;
}

.home-explore__title {
  display: block;
  margin-block-end: var(--ca-space-1);
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--text);
}

.home-explore__desc {
  margin: 0;
  max-width: 26rem;
  font-size: var(--ca-font-size-sm);
  color: var(--muted);
  line-height: 1.45;
}

@media (prefers-reduced-motion: reduce) {
  .home-explore__item a {
    transition: none;
  }
}

/*
  Editorial “why” triad — typographic columns, not panel cards.
  Showcase below owns interactive glass; this section only explains.
*/
.home-why {
  list-style: none;
  margin: var(--ca-space-6) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-block: 0.5px solid color-mix(in oklab, var(--glass-border) 85%, transparent);
}

.home-why__item {
  margin: 0;
  padding: var(--ca-space-5) 0;
  border-bottom: 0.5px solid color-mix(in oklab, var(--glass-border) 70%, transparent);
}

.home-why__item:last-child {
  border-bottom: 0;
}

.home-why__title {
  margin: 0 0 var(--ca-space-2);
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text);
}

.home-why__body {
  margin: 0;
  max-width: 26rem;
  font-size: var(--ca-font-size-md);
  line-height: 1.55;
  color: color-mix(in oklab, var(--text) 82%, var(--muted));
}

.home-why__body code {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 0.92em;
  color: var(--text);
}

@media (min-width: 800px) {
  .home-why {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-block: 0;
    column-gap: var(--ca-space-6);
  }

  .home-why__item {
    padding: 0;
    padding-inline-start: var(--ca-space-4);
    border-bottom: 0;
    border-inline-start: 2px solid
      color-mix(in oklab, var(--color-accent) 32%, var(--glass-border));
  }

  .home-why__body {
    max-width: 22rem;
  }
}

/* FAQ — accordion sits in the narrow column; code stays soft on glass. */
.home-faq {
  margin-block-start: var(--ca-space-6);
}

.home-faq .ui-accordion__panel-body code {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.home-faq .ui-accordion__panel-body a {
  color: var(--color-accent);
  text-underline-offset: 0.15em;
}

.home-faq .ui-accordion__panel-body a:hover {
  text-decoration-thickness: 2px;
}

/* Theme toggle in navbar actions */
.lp .ui-navbar__actions #theme-toggle {
  flex-shrink: 0;
}

/*
  Start building — the closing beat, not a fourth card grid.
  A hairline seam + a quiet top-down wash stand in for a fourth glass panel;
  no motion here, no card, nothing competing with the hero caustic.
*/
.home-cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: var(--ca-space-20);
}

.home-cta::before {
  content: '';
  position: absolute;
  inset-inline: 12%;
  top: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in oklab, var(--color-accent) 45%, var(--glass-border)) 50%,
    transparent
  );
}

.home-cta__glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 60% 65% at 50% 0%,
    color-mix(in oklab, var(--color-accent) 16%, transparent) 0%,
    transparent 70%
  );
}

html[data-theme='light'] .home-cta__glow {
  background: radial-gradient(
    ellipse 60% 65% at 50% 0%,
    color-mix(in oklab, var(--color-accent) 9%, transparent) 0%,
    transparent 70%
  );
}

.home-cta > .ui-container {
  position: relative;
  z-index: 1;
}

.home-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.25rem);
  letter-spacing: -0.03em;
}

.home-cta__lede {
  max-width: 26rem;
  margin-block-end: var(--ca-space-8);
}

/* —— Support / sponsors marquee —— */
.home-support__sponsors {
  margin-block-start: var(--ca-space-8);
}

.home-support__actions {
  flex-wrap: wrap;
  justify-content: center;
}

.home-bank {
  margin-block-start: var(--ca-space-6);
  padding: var(--ca-space-5);
  border: 1px solid var(--glass-border, color-mix(in oklab, var(--color-fg) 12%, transparent));
  border-radius: var(--ca-radius-3, 0.75rem);
  background: color-mix(in oklab, var(--glass-surface, var(--color-bg)) 88%, transparent);
  text-align: start;
}

.home-bank__title {
  margin: 0 0 var(--ca-space-3);
  font-family: var(--font-display);
  font-size: var(--ca-font-size-sm, 0.9375rem);
  letter-spacing: -0.01em;
}

.home-bank__list {
  margin: 0;
  display: grid;
  gap: var(--ca-space-3);
}

.home-bank__row {
  display: grid;
  gap: 0.2rem;
}

.home-bank__row dt {
  margin: 0;
  font-size: var(--ca-font-size-xs, 0.75rem);
  color: var(--muted, var(--color-fg-muted));
}

.home-bank__row dd {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ca-space-2);
}

.home-bank__value {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: var(--ca-font-size-sm, 0.875rem);
  word-break: break-all;
}

.home-bank__note {
  margin: var(--ca-space-4) 0 0;
  font-size: var(--ca-font-size-xs, 0.75rem);
  color: var(--muted, var(--color-fg-muted));
  line-height: 1.45;
}

.ui-container--narrow .home-bank,
.home-support__actions + .home-bank {
  max-width: 36rem;
  margin-inline: auto;
}

.home-sponsors__empty {
  margin: 0;
  text-align: center;
  color: var(--muted, var(--color-fg-muted));
  font-size: var(--ca-font-size-sm, 0.875rem);
  line-height: 1.5;
}

.home-sponsors__inline-copy {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  margin: 0;
  font: inherit;
  color: var(--color-accent, var(--color-system-blue));
  text-decoration: underline;
  text-underline-offset: 0.15em;
  cursor: pointer;
}

.home-sponsors__inline-copy:hover,
.home-sponsors__inline-copy:focus-visible {
  color: var(--color-fg);
}

.home-sponsors {
  overflow: hidden;
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 8%,
    #000 92%,
    transparent 100%
  );
}

.home-sponsors__viewport {
  display: flex;
  width: max-content;
  gap: 0;
}

.home-sponsors__track {
  display: flex;
  align-items: center;
  gap: var(--ca-space-8);
  list-style: none;
  margin: 0;
  padding: var(--ca-space-3) var(--ca-space-4);
  flex-shrink: 0;
}

.home-sponsors__item {
  flex-shrink: 0;
  white-space: nowrap;
}

.home-sponsors__name {
  font-family: var(--font-display);
  font-size: var(--ca-font-size-sm, 0.9375rem);
  letter-spacing: -0.01em;
  color: var(--color-fg);
  text-decoration: none;
}

a.home-sponsors__name:hover,
a.home-sponsors__name:focus-visible {
  color: var(--color-accent, var(--color-system-blue));
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

@media (prefers-reduced-motion: no-preference) {
  .home-sponsors__viewport {
    animation: home-sponsors-scroll 40s linear infinite;
  }

  .home-sponsors:hover .home-sponsors__viewport,
  .home-sponsors:focus-within .home-sponsors__viewport {
    animation-play-state: paused;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-sponsors {
    mask-image: none;
  }

  .home-sponsors__viewport {
    display: block;
    width: auto;
    animation: none;
  }

  .home-sponsors__track {
    flex-wrap: wrap;
    justify-content: center;
    padding-inline: 0;
  }

  .home-sponsors__track--clone {
    display: none;
  }
}

@keyframes home-sponsors-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* Docs support page reuses the same action + marquee classes */
.docs-body .home-support__actions {
  justify-content: flex-start;
  margin-block-start: var(--ca-space-4);
}

.docs-body .home-bank {
  margin-inline: 0;
  max-width: 36rem;
}

.docs-body .home-support__sponsors,
.docs-body [data-sponsor-marquee] {
  margin-block-start: var(--ca-space-4);
}

.docs-body .home-sponsors__empty {
  text-align: start;
}

/* —— 404 / not found (marketing chrome) —— */
.nf > .ui-navbar--sticky.ui-navbar--island {
  z-index: 50;
}

.nf-hero .nf-copy {
  max-width: 32rem;
}

/* Prefer safe centering so tall copy isn’t clipped above the fold. */
.nf-stage > .nf-hero {
  justify-content: safe center;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.nf-brand {
  margin-block-end: var(--ca-space-3);
}

.nf-brand__name {
  margin: 0;
  font-size: clamp(1.35rem, 3.5vw, 1.85rem);
  line-height: 1.1;
}

.nf-brand__name .text-gradient-hero__glow,
.nf-brand__name .text-gradient-hero__text {
  font-size: inherit;
}

.nf-code {
  margin: 0 0 var(--ca-space-2);
  font-size: clamp(3.5rem, 14vw, 6.5rem);
  line-height: 0.9;
  letter-spacing: -0.04em;
  font-weight: 650;
  user-select: none;
}

.nf-code .text-gradient-hero__glow,
.nf-code .text-gradient-hero__text {
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
}

.nf-title {
  margin: 0 0 var(--ca-space-3);
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
}

.nf-lede {
  margin-block-end: var(--ca-space-3);
}

.nf-path {
  margin: 0 0 var(--ca-space-5);
  font-size: var(--ca-font-size-sm);
  color: var(--muted);
}

.nf-path code {
  display: inline-block;
  max-width: min(100%, 28rem);
  margin-inline-start: 0.35em;
  padding: 0.15em 0.45em;
  overflow-wrap: anywhere;
  word-break: break-word;
  font-size: 0.92em;
  color: var(--text);
  background: color-mix(in oklab, var(--glass-surface) 80%, transparent);
  border: 0.5px solid var(--glass-border);
  border-radius: var(--ca-radius-sm);
}

.nf-actions {
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--ca-space-2);
  margin-block-end: var(--ca-space-5);
}

.nf-shortcuts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--ca-space-2) var(--ca-space-4);
  font-size: var(--ca-font-size-sm);
}

.nf-shortcuts a {
  color: var(--muted);
  text-decoration: none;
  text-underline-offset: 0.18em;
}

.nf-shortcuts a:hover,
.nf-shortcuts a:focus-visible {
  color: var(--text);
  text-decoration: underline;
}

@media (prefers-reduced-motion: no-preference) {
  .nf-brand,
  .nf-code,
  .nf-title,
  .nf-lede,
  .nf-path,
  .nf-actions,
  .nf-shortcuts {
    opacity: 0;
    transform: translateY(0.45rem);
    transition:
      opacity 720ms cubic-bezier(0.16, 0.84, 0.22, 1),
      transform 720ms cubic-bezier(0.16, 0.84, 0.22, 1);
    transition-delay: var(--nf-delay, 0ms);
  }

  /* Brand leads — longer settle than the supporting 404 chrome. */
  .nf-brand {
    transform: translateY(0.4rem);
    transition-duration: 1.1s;
  }

  .nf-brand.is-entered,
  .nf-code.is-entered,
  .nf-title.is-entered,
  .nf-lede.is-entered,
  .nf-path.is-entered,
  .nf-actions.is-entered,
  .nf-shortcuts.is-entered {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-height: 40rem) {
  .nf-stage > .nf-hero {
    justify-content: flex-start;
    align-items: center;
    padding-block: calc(var(--lp-nav-underlap, 5.25rem) + var(--ca-space-3)) var(--ca-space-6);
  }

  .nf-code {
    font-size: clamp(2.25rem, 9vw, 3.5rem);
  }

  .nf-brand {
    margin-block-end: var(--ca-space-2);
  }

  .nf-lede {
    margin-block-end: var(--ca-space-2);
  }

  .nf-path {
    margin-block-end: var(--ca-space-3);
  }

  .nf-actions {
    margin-block-end: var(--ca-space-3);
  }
}