/* ── SESAME brand theme over DuVay tokens ──────────────────────────────── */
html[w-theme] {
  --w-primary: #8b7cf6;
  --w-on-primary: #100b26;
  --w-primary-container: rgba(139, 124, 246, 0.16);
  --w-on-primary-container: #a99bff;
  --w-radius-sm: 6px;
  --w-radius: 10px;
  --w-radius-md: 12px;
  --w-radius-lg: 14px;
  --w-radius-xl: 20px;

  /* A second accent so gradients have somewhere to travel. Monochrome violet
     reads as flat no matter how many layers are stacked on it. */
  --accent: #8b7cf6;
  --accent-soft: #a99bff;
  --accent-far: #4f8ff7;
  --accent-glow: rgba(139, 124, 246, 0.55);

  /* One ramp for lifted surfaces, so a card, a code block and a callout all
     sit at the same depth instead of each inventing one. */
  --lift-border: rgba(139, 124, 246, 0.18);
  --lift-border-strong: rgba(139, 124, 246, 0.4);
  --lift-highlight: rgba(255, 255, 255, 0.06);
  --lift-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
  --lift-shadow-hover: 0 1px 2px rgba(0, 0, 0, 0.4), 0 18px 40px -16px rgba(79, 60, 190, 0.55);
  --grid-line: rgba(139, 124, 246, 0.07);
}

html[w-theme='dark'] {
  --w-surface: #08080c;
  --w-surface-container-low: #101018;
  --w-surface-container-high: #171722;
  --w-border: rgba(139, 124, 246, 0.16);
  --w-divider: rgba(255, 255, 255, 0.08);
}

html[w-theme='light'] {
  /* The same ramp inverted. Light needs less glow and more contrast in the
     hairlines, or every surface dissolves into the page. */
  --lift-border: rgba(80, 60, 180, 0.14);
  --lift-border-strong: rgba(80, 60, 180, 0.32);
  --lift-highlight: rgba(255, 255, 255, 0.9);
  --lift-shadow: 0 1px 2px rgba(30, 20, 70, 0.06), 0 8px 24px -14px rgba(30, 20, 70, 0.18);
  --lift-shadow-hover: 0 1px 2px rgba(30, 20, 70, 0.08), 0 18px 40px -18px rgba(79, 60, 190, 0.28);
  --grid-line: rgba(80, 60, 180, 0.06);
  --accent-glow: rgba(139, 124, 246, 0.3);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  /* Nothing should be able to scroll the page sideways. Wide children —
     code blocks, tables — scroll inside their own container instead.
     `clip`, not `hidden`: hidden makes the body a scroll container, which
     silently breaks the sticky header. */
  overflow-x: clip;
  background: var(--w-surface);
  color: var(--w-text);
  font-family:
    ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ── Layout helpers ────────────────────────────────────────────────────── */
.section {
  padding: clamp(2.75rem, 7vw, 4.5rem) clamp(1rem, 4vw, 1.5rem);
}
.section--tight {
  padding: 3rem 1rem;
}
.section-head {
  max-width: 46rem;
  margin: 0 auto 2.75rem;
  text-align: center;
}
.section-head h2 {
  margin: 0.4rem 0 0.75rem;
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  letter-spacing: -0.02em;
}
.section-head p {
  margin: 0;
  color: var(--w-text-subtle);
  line-height: 1.7;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--w-primary);
}

/* ── Code blocks ───────────────────────────────────────────────────────── */
.code-block {
  margin: 0;
  padding: 1.1rem 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-lg);
  background: var(--w-surface-container-low);
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--w-text);
  white-space: pre;
  text-align: left;
}

/* ── Header ────────────────────────────────────────────────────────────── */
/*
 * Tachyon wraps every component in its own element, and a sticky child can
 * only travel within its parent — so the header's wrapper, being exactly as
 * tall as the header, made `position: sticky` a no-op. `display: contents`
 * removes the wrapper from layout so the header's containing block is the
 * body, which is what it has to be to stay put while the page scrolls.
 */
body > div:has(> .site-header) {
  display: contents;
}

.site-header {
  border-bottom: 1px solid var(--w-divider);
  background: color-mix(in srgb, var(--w-surface) 88%, transparent);
  backdrop-filter: blur(10px);
}
.header-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.55rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-right: auto;
  text-decoration: none;
  color: var(--w-text);
}
.brand-mark {
  width: 28px;
  height: 28px;
}
.brand-name {
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.95rem;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}
.header-burger {
  display: none;
}
.header-mobile-menu {
  display: none;
  flex-direction: column;
  padding: 0.5rem 1rem 1rem;
  border-top: 1px solid var(--w-divider);
}
.site-header.menu-open .header-mobile-menu {
  display: flex;
}
.burger-close {
  display: none;
}
.site-header.menu-open .burger-open {
  display: none;
}
.site-header.menu-open .burger-close {
  display: inline;
}
@media (max-width: 767px) {
  .header-burger {
    display: inline-flex;
  }
}

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hero {
  padding: clamp(2.5rem, 8vw, 5rem) clamp(1rem, 4vw, 1.5rem) clamp(2.25rem, 6vw, 3.5rem);
  text-align: center;
  background:
    radial-gradient(60rem 26rem at 50% -6rem, rgba(139, 124, 246, 0.16), transparent 70%);
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 7vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.hero-grad {
  display: block;
  background: linear-gradient(100deg, #a99bff, #8b7cf6 55%, #5f8dfa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-plain {
  display: block;
}
.hero-sub {
  max-width: 44rem;
  margin: 0 auto 2rem;
  color: var(--w-text-subtle);
  font-size: clamp(0.95rem, 1.2vw + 0.7rem, 1.05rem);
  line-height: 1.65;
  text-wrap: pretty;
}
.hero-install {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  max-width: 100%;
  margin-bottom: 1.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-lg);
  background: var(--w-surface-container-low);
  cursor: pointer;
  overflow-x: auto;
}
.hero-prompt {
  color: var(--w-primary);
}
.hero-cmd {
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  white-space: nowrap;
}
.hero-copy-hint,
.hero-copied {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--w-text-subtle);
}
.hero-copied {
  color: var(--w-primary);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin-bottom: 2rem;
}
.hero-ticks {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.25rem;
}
.hero-tick {
  font-size: 0.85rem;
  color: var(--w-text-subtle);
}

/* ── Stats ─────────────────────────────────────────────────────────────── */
.stats {
  padding: 0 1rem 3rem;
}
.stat {
  padding: 1rem 0.5rem;
  text-align: center;
}
.stat-value {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--w-primary);
}
.stat-label {
  margin-top: 0.15rem;
  font-size: 0.82rem;
  color: var(--w-text-subtle);
}

/* ── Cards ─────────────────────────────────────────────────────────────── */
/* A capability card is one per column, so filling the column is what makes a
   row of them line up. Proof cards stack several to a column, where the same
   rule would make each one as tall as the whole column. */
.cap-card {
  height: 100%;
}
.cap-card,
.proof-card {
  padding: 1.35rem;
  margin-bottom: 1.25rem;
}
.cap-card h3,
.proof-card h3 {
  margin: 0.7rem 0 0.5rem;
  font-size: 1.02rem;
}
.cap-card p,
.proof-card p {
  margin: 0;
  color: var(--w-text-subtle);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ── Proof / honesty section ───────────────────────────────────────────── */
.proof {
  background: var(--w-surface-container-low);
  border-block: 1px solid var(--w-divider);
}
/* Neither column is labelled, so the not-yet-built one is drawn rather than
   captioned: a dashed edge reads as provisional at a glance, and unlike a
   column position it still reads that way once the two stack on a phone. */
.proof-col--open .proof-card {
  border-style: dashed;
  /* Weighted for the light theme, where the built cards are already almost
     the page colour and a fainter dash disappears into them entirely. */
  border-color: color-mix(in srgb, var(--w-text-subtle) 60%, transparent);
  background: transparent;
}
.proof-col--open .proof-card h3 {
  color: var(--w-text-subtle);
}
.proof-note {
  max-width: 46rem;
  margin: 2.25rem auto 0;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--w-primary);
  background: var(--w-surface-container-high);
  border-radius: var(--w-radius);
  color: var(--w-text-subtle);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ── Architecture ──────────────────────────────────────────────────────── */
.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}
.arch-node {
  flex: 1 1 13rem;
  max-width: 17rem;
  padding: 1.1rem;
  border: 1px solid var(--w-border);
  border-radius: var(--w-radius-lg);
  background: var(--w-surface-container-low);
  text-align: center;
}
.arch-node strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
}
.arch-node span {
  font-size: 0.85rem;
  color: var(--w-text-subtle);
  line-height: 1.6;
}
.arch-arrow {
  align-self: center;
  color: var(--w-primary);
  font-size: 1.1rem;
}

/* ── Quickstart tabs ───────────────────────────────────────────────────── */
.qs-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.qs-panel {
  max-width: 52rem;
  margin: 0 auto;
}

/* ── Call to action ────────────────────────────────────────────────────── */
.cta {
  padding: 4rem 1rem;
  text-align: center;
  background:
    radial-gradient(45rem 20rem at 50% 120%, rgba(139, 124, 246, 0.18), transparent 70%);
}
.cta h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  letter-spacing: -0.02em;
}
.cta p {
  max-width: 38rem;
  margin: 0 auto 1.75rem;
  color: var(--w-text-subtle);
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
}

/* ── Footer ────────────────────────────────────────────────────────────── */
.site-footer {
  padding: 3rem 1rem 2rem;
  border-top: 1px solid var(--w-divider);
}
.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: space-between;
}
.footer-brand p {
  max-width: 22rem;
  margin: 0.6rem 0 0;
  color: var(--w-text-subtle);
  font-size: 0.88rem;
  line-height: 1.65;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
}
.footer-col h4 {
  margin: 0 0 0.6rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--w-text-subtle);
}
.footer-col a {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--w-text);
  text-decoration: none;
  font-size: 0.9rem;
}
.footer-col a:hover {
  color: var(--w-primary);
}
.footer-base {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--w-divider);
  color: var(--w-text-subtle);
  font-size: 0.82rem;
}

/* ── Docs and download pages ───────────────────────────────────────────── */
.doc-page {
  padding: clamp(1.75rem, 5vw, 3rem) clamp(1rem, 4vw, 1.5rem) clamp(2.5rem, 6vw, 4rem);
}
.doc-page h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 5.5vw, 2.6rem);
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.doc-lede {
  max-width: 44rem;
  margin: 0 0 2.5rem;
  color: var(--w-text-subtle);
  line-height: 1.75;
}
.doc-section {
  max-width: 52rem;
  margin: 0 0 2.75rem;
}
.doc-section h2 {
  margin: 0 0 0.6rem;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.doc-section > p {
  margin: 0 0 1rem;
  overflow-wrap: break-word;
  color: var(--w-text-subtle);
  line-height: 1.75;
}
.doc-section ul {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
  color: var(--w-text-subtle);
  line-height: 1.8;
}
/* Inline links take the accent; a button already carries its own colours,
   and tinting it paints primary text onto a primary background. */
.doc-section a:not(.w-btn) {
  color: var(--w-primary);
}
.platform-card {
  padding: 1.1rem 1.25rem;
  margin-bottom: 1rem;
}
.platform-card strong {
  display: block;
  font-size: 0.98rem;
}
.platform-card span {
  font-size: 0.86rem;
  color: var(--w-text-subtle);
}

/* ── Docs shell and sidebar ────────────────────────────────────────────── */
/* Two columns on a wide screen, one on a narrow one, with the nav collapsed
   behind a button below the breakpoint — a fixed 15rem rail on a phone would
   eat half the reading width. */
.docs-shell {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.docs-main {
  min-width: 0;
}
.docs-sidebar {
  position: sticky;
  /* Clears the sticky header rather than sliding under it. */
  top: 5rem;
  max-height: calc(100vh - 6.5rem);
  padding-right: 0.5rem;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.docs-sidebar-toggle {
  display: none;
  width: 100%;
  margin-bottom: 1rem;
}
.docs-sidebar-section {
  margin-bottom: 1.5rem;
}
.docs-sidebar-subhead {
  margin: 0 0 0.2rem;
  padding: 0 0.65rem;
  color: var(--w-text-subtle);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}
.docs-sidebar-summary {
  margin: 0 0 0.55rem;
  padding: 0 0.65rem;
  color: var(--w-text-very-subtle, var(--w-text-subtle));
  font-size: 0.74rem;
  line-height: 1.45;
  opacity: 0.75;
}
.docs-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.docs-sidebar-list li {
  margin-bottom: 1px;
}
.docs-sidebar-list a {
  display: block;
  padding: 0.4rem 0.65rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--w-radius) var(--w-radius) 0;
  color: var(--w-text-subtle);
  font-size: 0.86rem;
  line-height: 1.45;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.docs-sidebar-list a:hover {
  background: color-mix(in srgb, var(--w-primary) 8%, transparent);
  color: var(--w-text);
}
.docs-sidebar-list a.is-current {
  border-left-color: var(--w-primary);
  background: color-mix(in srgb, var(--w-primary) 12%, transparent);
  color: var(--w-primary);
  font-weight: 600;
}
.docs-sidebar-out {
  margin-left: 0.3rem;
  font-size: 0.75em;
  opacity: 0.6;
}

@media (max-width: 1023px) {
  .docs-shell {
    grid-template-columns: minmax(0, 1fr);
  }
  .docs-sidebar {
    position: static;
    max-height: none;
    padding-right: 0;
    overflow: visible;
    margin-bottom: 1.5rem;
  }
  .docs-sidebar-toggle {
    display: block;
  }
  .docs-sidebar-nav {
    display: none;
  }
  .docs-sidebar.is-open .docs-sidebar-nav {
    display: block;
    padding: 0.75rem 0.25rem;
    border: 1px solid var(--w-divider);
    border-radius: var(--w-radius);
    background: var(--w-surface-container-low);
  }
}

/* ── Guides ────────────────────────────────────────────────────────────── */
.doc-section--wide {
  max-width: none;
}
.doc-back {
  /* Block, not inline-block: the eyebrow that follows belongs on its own
     line, and an inline back link pulls it up alongside. */
  display: block;
  margin-bottom: 1.25rem;
  color: var(--w-text-subtle);
  text-decoration: none;
  font-size: 0.88rem;
}
.doc-back:hover {
  color: var(--w-primary);
}
.guide-card {
  display: block;
  height: 100%;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition:
    border-color 120ms ease,
    transform 120ms ease;
}
.guide-card:hover {
  border-color: var(--w-primary);
  transform: translateY(-2px);
}
.guide-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}
.guide-card p {
  margin: 0;
  color: var(--w-text-subtle);
  font-size: 0.9rem;
  line-height: 1.6;
}
.guide-arrow {
  color: var(--w-primary);
}
.guide-tag {
  display: inline-block;
  margin-top: 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--w-text-subtle);
}

/* ── Callouts ──────────────────────────────────────────────────────────── */
.doc-callout {
  max-width: 52rem;
  margin: 0 0 2.5rem;
  padding: 1.1rem 1.3rem;
  border-left: 3px solid var(--w-primary);
  border-radius: var(--w-radius);
  background: var(--w-surface-container-low);
}
.doc-callout--warn {
  border-left-color: var(--w-warning, #fbbf24);
  margin: 1.5rem 0;
}
.doc-callout strong {
  display: block;
  margin-bottom: 0.5rem;
}
.doc-callout p {
  margin: 0;
  color: var(--w-text-subtle);
  line-height: 1.7;
  font-size: 0.93rem;
}
.doc-note {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--w-divider);
  color: var(--w-text-subtle);
  font-size: 0.88rem;
  line-height: 1.7;
}
.code-tabs {
  margin-bottom: 1.25rem;
}
.doc-section code {
  padding: 0.1rem 0.35rem;
  border-radius: var(--w-radius-sm);
  background: var(--w-surface-container-high);
  font-family: ui-monospace, 'SF Mono', SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
}
.code-block code {
  padding: 0;
  background: none;
  font-size: inherit;
}

/* ── Reference tables ──────────────────────────────────────────────────── */
.code-table {
  width: 100%;
  margin: 0 0 2rem;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.code-table th {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--w-border);
  text-align: left;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--w-text-subtle);
}
.code-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--w-divider);
  vertical-align: top;
  line-height: 1.6;
}
.code-table td:first-child {
  width: 18rem;
  white-space: nowrap;
}
.code-table td:last-child {
  color: var(--w-text-subtle);
}
.code-group {
  margin: 2rem 0 0.3rem;
  font-size: 1.05rem;
}
.code-group-note {
  margin: 0 0 0.9rem;
  color: var(--w-text-subtle);
  font-size: 0.9rem;
}
@media (max-width: 767px) {
  .code-table td:first-child {
    width: auto;
    white-space: normal;
  }
}

/* ══ Surface and depth ══════════════════════════════════════════════════ */
/*
 * The page had one plane and everything sat on it. Three layers fix that
 * without adding an image: an aurora behind the fold, a faint grid that gives
 * the dark a texture to catch, and a shared lift ramp for anything raised.
 */
body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

/* The aurora. Two offset ellipses read as light with a direction, where one
   centred blob reads as a smudge. */
body::before {
  background:
    radial-gradient(75rem 38rem at 15% -14%, var(--accent-glow), transparent 64%),
    radial-gradient(58rem 32rem at 88% -8%, rgba(79, 143, 247, 0.4), transparent 62%),
    radial-gradient(40rem 24rem at 55% 8%, rgba(139, 124, 246, 0.18), transparent 70%);
  opacity: 0.9;
}

/* The grid. Masked so it fades before it reaches the content and never
   competes with text. */
body::after {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(60rem 40rem at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(60rem 40rem at 50% 0%, #000 0%, transparent 75%);
}

html[w-theme='light'] body::before {
  opacity: 0.5;
}

/* ── Selection, focus, and scrollbar ───────────────────────────────────── */
::selection {
  background: color-mix(in srgb, var(--accent) 32%, transparent);
  color: var(--w-text);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--w-radius-sm);
}
* {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--accent) 40%, transparent) transparent;
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-thumb {
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 999px;
  background-color: color-mix(in srgb, var(--accent) 35%, transparent);
}
*::-webkit-scrollbar-thumb:hover {
  background-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

/* The header is sticky, so an anchor jump would otherwise land under it. */
[id] {
  scroll-margin-top: 5rem;
}

/* ── Lifted surfaces ───────────────────────────────────────────────────── */
/*
 * One treatment, applied everywhere something is raised: a hairline that is
 * brightest at the top edge, as though lit from above.
 */
.w-card,
.code-block,
.arch-node,
.doc-callout,
.proof-note,
.hero-install {
  position: relative;
  border-color: var(--lift-border);
  box-shadow: var(--lift-shadow);
}
.w-card::before,
.code-block::before,
.arch-node::before,
.hero-install::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    transparent,
    var(--lift-highlight) 18%,
    var(--lift-highlight) 82%,
    transparent
  );
  pointer-events: none;
}

/* ── Buttons ───────────────────────────────────────────────────────────── */
.w-btn-filled {
  background-image: linear-gradient(180deg, var(--accent-soft), var(--accent));
  border: 1px solid color-mix(in srgb, var(--accent) 70%, #000);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    0 6px 18px -8px var(--accent-glow);
  transition:
    transform 120ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}
.w-btn-filled:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 10px 26px -8px var(--accent-glow);
}
.w-btn-filled:active {
  transform: translateY(0);
}
.w-btn-outlined {
  border-color: var(--lift-border-strong);
  background: color-mix(in srgb, var(--w-surface-container-low) 70%, transparent);
  backdrop-filter: blur(6px);
  transition:
    border-color 160ms ease,
    transform 120ms ease;
}
.w-btn-outlined:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* ══ Hero ═══════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  /* The aurora now lives on the body, so the section only needs to not fight
     it. Its own gradient was doubling up and muddying both. */
  background: none;
}
.hero h1 {
  font-weight: 700;
}
.hero-grad {
  background: linear-gradient(100deg, var(--accent-soft) 0%, var(--accent) 45%, var(--accent-far) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  /* A gradient clipped to text loses its descenders to overflow without a
     little breathing room. */
  padding-bottom: 0.08em;
}


/* ── The install command ───────────────────────────────────────────────── */
/*
 * This is the primary action on the page and it read as a caption. It now
 * has the presence of a control: a real surface, a copy affordance that looks
 * pressable, and feedback that lands where the eye already is.
 */
.hero-install {
  gap: 0.75rem;
  padding: 0.7rem 0.7rem 0.7rem 1rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--w-surface-container-low) 88%, transparent);
  backdrop-filter: blur(10px);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}
.hero-install:hover {
  border-color: var(--lift-border-strong);
  box-shadow: var(--lift-shadow-hover);
}
.hero-install::before {
  border-radius: 999px;
}
.hero-cmd {
  font-size: 0.9rem;
  color: var(--w-text);
}
.hero-copy-hint,
.hero-copied {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent-soft);
  font-weight: 600;
  font-size: 0.68rem;
}
.hero-copied {
  background: color-mix(in srgb, #4ade80 18%, transparent);
  color: #4ade80;
}

.hero-tick {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* ── Stats ─────────────────────────────────────────────────────────────── */
/*
 * Four numbers floating in space read as debris. In a single panel with
 * dividers they read as one claim with four parts.
 */
.stats {
  padding-bottom: clamp(2rem, 5vw, 3rem);
}
.stats .w-grid-row {
  border: 1px solid var(--lift-border);
  border-radius: var(--w-radius-xl);
  background: color-mix(in srgb, var(--w-surface-container-low) 70%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: var(--lift-shadow);
  margin-inline: 0;
  overflow: hidden;
}
.stat {
  position: relative;
  padding: 1.4rem 0.75rem;
}
.stat-value {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

/* ── Section heads ─────────────────────────────────────────────────────── */
.eyebrow::before {
  content: '';
  width: 1.4rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}
.section-head h2 {
  font-weight: 700;
}

/* ══ Code ═══════════════════════════════════════════════════════════════ */
.code-block {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 4%, transparent), transparent 40%),
    var(--w-surface-container-low);
  border-radius: var(--w-radius-lg);
  /* A little more air than prose: code is scanned in blocks, not read in
     lines, and cramped monospace is what makes a snippet look hostile. */
  padding: 1.15rem 1.3rem;
  line-height: 1.75;
  tab-size: 4;
}
/* Comment lines carry the reasoning in these snippets, so they should read as
   supporting text rather than compete with the calls. Applied by the shared
   colour rather than per-token highlighting, which would need a parser. */
.code-block code {
  color: var(--w-text);
}

/* ── Language tabs ─────────────────────────────────────────────────────── */
/*
 * Ten loose buttons read as a pile. Inside one recessed track they read as a
 * segmented control, and the selected language is obvious at a glance.
 */
.qs-tabs {
  padding: 0.3rem;
  border: 1px solid var(--lift-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--w-surface-container-low) 75%, transparent);
  backdrop-filter: blur(8px);
  width: fit-content;
  max-width: 100%;
}
.qs-tabs .w-btn {
  border-radius: 999px;
  transition:
    background-color 140ms ease,
    color 140ms ease;
}
.qs-tabs .w-btn-text {
  color: var(--w-text-subtle);
}
.qs-tabs .w-btn-text:hover {
  color: var(--w-text);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.qs-tabs .w-btn-filled {
  /* The selected pill sits inside a track, so it needs no drop shadow of its
     own — only the lift of a lighter fill. */
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

/* ── Inline code ───────────────────────────────────────────────────────── */
.doc-section code,
.doc-lede code,
.code-table code {
  border: 1px solid var(--lift-border);
  background: color-mix(in srgb, var(--accent) 9%, transparent);
  color: var(--accent-soft);
}
html[w-theme='light'] .doc-section code,
html[w-theme='light'] .doc-lede code,
html[w-theme='light'] .code-table code {
  color: color-mix(in srgb, var(--accent) 75%, #000);
}
.code-block code {
  border: 0;
  background: none;
}

/* ══ Cards ══════════════════════════════════════════════════════════════ */
.cap-card,
.proof-card,
.guide-card,
.platform-card {
  background: color-mix(in srgb, var(--w-surface-container-low) 65%, transparent);
  backdrop-filter: blur(8px);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}
.cap-card:hover,
.guide-card:hover {
  border-color: var(--lift-border-strong);
  box-shadow: var(--lift-shadow-hover);
}
.guide-card {
  /* The arrow leads the eye on hover rather than the whole card moving far. */
  transform: none;
}
.guide-card:hover {
  transform: translateY(-2px);
}
.guide-card .guide-arrow {
  display: inline-block;
  transition: transform 180ms ease;
}
.guide-card:hover .guide-arrow {
  transform: translateX(3px);
}

/* ── Architecture nodes ────────────────────────────────────────────────── */
.arch-node {
  background: color-mix(in srgb, var(--w-surface-container-low) 70%, transparent);
  backdrop-filter: blur(8px);
}
.arch-node strong {
  color: var(--w-text);
}

/* ── The honest-claims section ─────────────────────────────────────────── */
.proof {
  /* Set into the page rather than raised, so it reads as a different kind of
     content: the part that is checked rather than sold. */
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 3%, transparent), transparent 30%),
    var(--w-surface-container-low);
}

/* ── Footer ────────────────────────────────────────────────────────────── */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--accent) 4%, transparent));
}
.footer-col a {
  transition: color 140ms ease;
}

/* ── Header ────────────────────────────────────────────────────────────── */
.site-header {
  /* A hairline that brightens toward the middle reads as a lit edge rather
     than a drawn line. */
  border-bottom: 0;
  box-shadow: 0 1px 0 var(--w-divider);
}
.brand-mark {
  transition: transform 200ms ease;
}
.brand:hover .brand-mark {
  transform: scale(1.06);
}

/*
 * This block is last on purpose. Media queries add no specificity, so a
 * responsive override only wins if it comes after the rule it adjusts — and
 * everything above it is the thing being adjusted.
 */
/* ══ Responsive behaviour ═══════════════════════════════════════════════ */
/*
 * Most sizing above is fluid, so these blocks handle only what a clamp()
 * cannot: layout that has to change shape, and affordances that have to grow
 * for a finger.
 */

/* ── Very wide screens ─────────────────────────────────────────────────── */
/*
 * Prose stays at a readable measure however wide the window, but reference
 * tables and card grids are the opposite problem: cramming 66 error codes
 * into 52rem beside a metre of empty screen helps nobody.
 */
.doc-section--wide {
  max-width: 78rem;
}

/* ── Touch targets ─────────────────────────────────────────────────────── */
/*
 * A coarse pointer needs a target it can actually hit. The tab strips carry
 * ten languages, so on a phone they are both the smallest and the most-used
 * controls on the page.
 */
/*
 * Keyed on both pointer type and width. `pointer: coarse` is the accurate
 * signal, but it is not universal — a small window on a hybrid device, or a
 * browser in responsive mode, reports a fine pointer at phone widths and
 * would otherwise get 32px targets.
 */
@media (pointer: coarse), (max-width: 767px) {
  .qs-tabs .w-btn,
  .header-mobile-menu .w-btn,
  .w-app-bar .w-btn {
    min-height: 44px;
  }
  .qs-tabs {
    gap: 0.45rem;
  }
}

/* ── Tablet and below ──────────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .arch-flow {
    /* The arrows read as a left-to-right pipeline. Once the nodes wrap into
       a column the arrows point the wrong way, so turn them downward. */
    flex-direction: column;
    align-items: stretch;
  }
  .arch-node {
    /* flex: 1 1 13rem is right in a row, where it shares the width. Stacked,
       the same grow factor stretches every node to fill the column's height
       and leaves each one mostly empty. */
    flex: 0 0 auto;
    max-width: none;
  }
  .arch-arrow {
    transform: rotate(90deg);
  }
}

/* ── Phones ────────────────────────────────────────────────────────────── */
@media (max-width: 767px) {
  /* The install command is a copy button. Letting it scroll sideways hides
     the "copy" label at the far end, which is the one part that says the
     control does anything — so on a phone it wraps instead. */
  .hero-install {
    flex-wrap: wrap;
    overflow-x: visible;
    justify-content: flex-start;
    text-align: left;
    /* A pill radius on a box that has wrapped to three lines reads as a
       blob. Once it stops being one line, it stops being a pill. */
    border-radius: var(--w-radius-lg);
    padding: 0.85rem 1rem;
  }
  .hero-install::before {
    border-radius: var(--w-radius-lg);
  }
  .hero-prompt {
    /* Stays on the first line beside the command rather than centring on a
       line of its own once the command wraps. */
    flex: 0 0 auto;
    align-self: flex-start;
  }
  .hero-cmd {
    white-space: normal;
    overflow-wrap: anywhere;
    /* flex-basis 0 with min-width 0 lets it shrink and wrap inside the row
       instead of forcing its own. */
    flex: 1 1 0;
    min-width: 0;
  }
  .hero-copy-hint,
  .hero-copied {
    width: 100%;
    text-align: right;
  }

  .hero-actions .w-btn,
  .cta-actions .w-btn {
    flex: 1 1 100%;
  }

  .code-block {
    padding: 0.9rem 1rem;
    font-size: 0.8rem;
    /* Code keeps its formatting and scrolls; momentum scrolling makes that
       bearable on a touch screen. */
    -webkit-overflow-scrolling: touch;
  }

  .footer-row,
  .footer-links {
    gap: 1.75rem;
  }
  .footer-links {
    width: 100%;
  }
  .footer-col {
    flex: 1 1 8rem;
  }

  .doc-callout {
    padding: 0.9rem 1rem;
  }
  .proof-note {
    padding: 0.9rem 1rem;
  }
}

/* ── Small phones ──────────────────────────────────────────────────────── */
@media (max-width: 400px) {
  .brand-name {
    /* The mark alone identifies the site; the wordmark is what crowds out
       the theme and menu controls at this width. */
    display: none;
  }
  .stat-value {
    font-size: 1.35rem;
  }
  .qs-tabs .w-btn {
    font-size: 0.78rem;
    padding-inline: 0.55rem;
  }
}

/* ── Short and wide (landscape phones) ─────────────────────────────────── */
@media (max-height: 460px) and (orientation: landscape) {
  .hero {
    padding-top: 2rem;
    padding-bottom: 1.75rem;
  }
  .hero-sub {
    margin-bottom: 1.25rem;
  }
}

/* ── Reference tables on narrow screens ────────────────────────────────── */
@media (max-width: 767px) {
  .code-table,
  .code-table thead,
  .code-table tbody,
  .code-table tr,
  .code-table td {
    display: block;
    width: auto;
  }
  .code-table thead {
    /* The column headings only make sense beside their columns. Stacked,
       each row already reads as "code, then meaning". */
    display: none;
  }
  .code-table tr {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--w-divider);
  }
  .code-table td {
    padding: 0;
    border: 0;
  }
  .code-table td:first-child {
    margin-bottom: 0.3rem;
    white-space: normal;
    overflow-wrap: anywhere;
  }
}

/* ── Motion ────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .guide-card {
    transition: none;
  }
  .guide-card:hover {
    transform: none;
  }
}