/* Vyrtel website. Aurora palette (docs/brand/README.md): the marketing field is light (Paper) so the dark
   product windows do the category signalling; Mint and Iris mark signal, not wallpaper. */

@font-face {
  font-family: 'Inter Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  src: url('fonts/inter.woff2') format('woff2-variations');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 400;
  src: url('fonts/plex-mono-400.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-display: swap;
  font-weight: 500;
  src: url('fonts/plex-mono-500.woff2') format('woff2');
}

:root {
  --midnight: #07131f;
  --surface: #0d1e2e;
  --surface-2: #12283b;
  --line-dark: #1d3448;
  --mint: #39e6c2;
  --mint-dark: #087a68;
  --iris: #7c72ff;
  --paper: #f6f8fb;
  --muted-dark: #a8b6c8;
  --warn: #ffc857;
  --critical: #ff6b7a;
  --info: #59c7ff;

  /* Light theme (default). Dark overrides follow below; brand colours above never change. */
  --bg: var(--paper);
  --bg-raised: #ffffff;
  --bg-tint: #edf2f7;
  --text: var(--midnight);
  --text-dim: #2a3b4f;
  --muted: #5a6b80;
  --line: #dde4ec;
  --line-strong: var(--line-strong);
  --link: var(--mint-dark);
  --accent-text: var(--mint-dark);
  --brand-node: var(--paper);
  --brand-node-ring: var(--midnight);
  --solid-bg: var(--midnight);
  --solid-bg-hover: #10263a;
  --solid-text: var(--paper);
  --panel: var(--midnight);
  --panel-edge: transparent;
  --section-dark: var(--midnight);
  --shadow-rgb: 7, 19, 31;
  color-scheme: light;

  --sans: 'Inter Variable', Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --motion-fast: 140ms;
  --motion-base: 220ms;
  --motion-brand: 320ms;
  --motion-slow: 480ms;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --wrap: 1180px;
  --header-h: 64px;
}

:root[data-theme='dark'] {
  --bg: #0a1622;
  --bg-raised: #0f2132;
  --bg-tint: #0d1c2b;
  --text: var(--paper);
  --text-dim: #d3dce6;
  --muted: #a8b6c8;
  --line: #1d3448;
  --line-strong: #2b4a66;
  --link: var(--mint);
  --accent-text: var(--mint);
  --brand-node-ring: #0a1622;
  --solid-bg: var(--paper);
  --solid-bg-hover: #ffffff;
  --solid-text: var(--midnight);
  --panel: #07111b;
  --panel-edge: #1d3448;
  --section-dark: #050d16;
  --shadow-rgb: 0, 0, 0;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0a1622;
    --bg-raised: #0f2132;
    --bg-tint: #0d1c2b;
    --text: var(--paper);
    --text-dim: #d3dce6;
    --muted: #a8b6c8;
    --line: #1d3448;
    --line-strong: #2b4a66;
    --link: var(--mint);
    --accent-text: var(--mint);
    --brand-node-ring: #0a1622;
    --solid-bg: var(--paper);
    --solid-bg-hover: #ffffff;
    --solid-text: var(--midnight);
    --panel: #07111b;
    --panel-edge: #1d3448;
    --section-dark: #050d16;
    --shadow-rgb: 0, 0, 0;
    color-scheme: dark;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code,
pre,
.mono {
  font-family: var(--mono);
}

h1,
h2,
h3 {
  letter-spacing: -0.025em;
  line-height: 1.15;
}

:focus-visible {
  outline: 2px solid var(--iris);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: min(var(--wrap), 100% - 32px);
  margin-inline: auto;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 14px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: var(--midnight);
  color: var(--paper);
}

.skip-link:focus {
  top: 12px;
}

/* ---------- brand (same geometry as the web UI's top bar) ---------- */

.brand {
  display: inline-flex;
  align-items: flex-end;
  color: var(--text);
  font-size: 22px;
  line-height: 1;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 2.032em;
  height: 2.032em;
  flex: 0 0 auto;
  overflow: visible;
  margin-left: -0.275em;
}

.brand-node {
  transform-box: fill-box;
  transform-origin: center;
}

.brand-word {
  display: inline-block;
  max-width: 0;
  opacity: 0;
  overflow-x: clip;
  overflow-y: visible;
  line-height: 0;
  margin: 0 0 0.2668em 0;
  transform: translateX(-0.35em);
  transition:
    max-width var(--motion-slow) var(--ease-enter),
    margin var(--motion-slow) var(--ease-enter),
    opacity var(--motion-brand) var(--ease) 120ms,
    transform var(--motion-slow) var(--ease-enter);
}

.brand-word svg {
  display: block;
  height: 1.21em;
  overflow: visible;
}

.brand:hover .brand-word,
.brand:focus-visible .brand-word,
.brand.is-expanded .brand-word {
  max-width: 3em;
  opacity: 1;
  transform: translateX(0);
  margin-left: -0.457em;
  margin-right: 0.253em;
}

.brand:hover .brand-node,
.brand:focus-visible .brand-node {
  animation: node-pulse var(--motion-slow) var(--ease);
}

@keyframes node-pulse {
  50% {
    transform: scale(1.25);
  }
}

/* ---------- buttons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font: 600 15px/1 var(--sans);
  cursor: pointer;
  text-decoration: none;
  transition:
    transform var(--motion-fast) var(--ease),
    background var(--motion-base) var(--ease),
    border-color var(--motion-base) var(--ease);
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button:active {
  transform: translateY(0);
}

.button-dark {
  background: var(--solid-bg);
  color: var(--solid-text);
}

.button-dark:hover {
  background: var(--solid-bg-hover);
}

.button-primary {
  background: var(--mint);
  color: var(--midnight);
}

.button-primary:hover {
  background: #6cefd4;
}

.button-ghost {
  background: var(--bg-raised);
  border-color: var(--line);
  color: var(--text);
}

.button-ghost:hover {
  border-color: var(--line-strong);
}

.button-ghost-dark {
  background: transparent;
  border-color: var(--line-dark);
  color: var(--paper);
}

.button-ghost-dark:hover {
  border-color: color-mix(in srgb, var(--mint) 50%, var(--line-dark));
}

.text-link {
  font-weight: 600;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--motion-base) var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--header-h);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.site-nav a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 15px;
  font-weight: 500;
  transition:
    background var(--motion-fast) var(--ease),
    color var(--motion-fast) var(--ease);
}

.site-nav a:hover {
  background: var(--bg-tint);
  color: var(--text);
  text-decoration: none;
}

.site-nav a[aria-current='page'] {
  color: var(--text);
  background: var(--bg-tint);
}

.nav-source {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.site-nav .nav-cta {
  margin-left: 8px;
  min-height: 40px;
  padding: 0 16px;
  color: var(--midnight);
}

.site-nav .nav-cta:hover {
  background: #6cefd4;
  color: var(--midnight);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-raised);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform var(--motion-base) var(--ease);
}

.nav-toggle[aria-expanded='true'] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle[aria-expanded='true'] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ---------- shared section bits ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--accent-text);
  font: 600 13px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow-mint {
  color: var(--mint);
}

.lead {
  color: var(--muted);
  font-size: 19px;
  line-height: 1.6;
  max-width: 640px;
}

.section {
  padding: 112px 0;
}

.section-tint {
  background: var(--bg-tint);
}

.section-dark {
  background: var(--section-dark);
  color: var(--paper);
  --muted: var(--muted-dark);
  --line: var(--line-dark);
  --link: var(--mint);
}

.section-head {
  margin-bottom: 56px;
  max-width: 760px;
}

.section-head h2,
.split h2 {
  font-size: clamp(32px, 4.4vw, 48px);
  margin: 0 0 18px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.split-reverse {
  grid-template-columns: 1.1fr 1fr;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--mint) 60%, transparent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  70% {
    box-shadow: 0 0 0 7px color-mix(in srgb, var(--mint) 0%, transparent);
  }
  100% {
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--mint) 0%, transparent);
  }
}

.signal-line {
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--mint), var(--iris), transparent);
  background-size: 220% 100%;
  animation: signal-trace 2.8s linear infinite;
}

@keyframes signal-trace {
  to {
    background-position: -220% 0;
  }
}

/* Reveal on scroll: only when JS is running (it adds .js) and motion is allowed. */
.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity var(--motion-slow) var(--ease-enter),
    transform var(--motion-slow) var(--ease-enter);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: 88px 0 104px;
  overflow: hidden;
  background:
    radial-gradient(640px 480px at 88% 8%, color-mix(in srgb, var(--mint) 16%, transparent), transparent 70%),
    radial-gradient(720px 560px at 96% 92%, color-mix(in srgb, var(--iris) 14%, transparent), transparent 70%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

/* Grid items default to min-width: auto, so a long nowrap command would widen its column. */
.hero-grid > *,
.split > *,
.compare > *,
.steps > *,
.cards > *,
.downloads > *,
.install-grid > *,
.doc-links > *,
.docs-layout > * {
  min-width: 0;
}

.hero h1 {
  font-size: clamp(52px, 7.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  margin: 0 0 24px;
}

.hero .lead {
  font-size: 20px;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.command {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 6px 6px 6px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  font-size: 14px;
}

.command code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.command .prompt {
  color: var(--accent-text);
  user-select: none;
}

.command-stacked {
  margin-top: 8px;
}

.command-dark {
  background: var(--surface);
  border-color: var(--line-dark);
  color: var(--paper);
}

.copy {
  flex: 0 0 auto;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
  font: 600 13px/1 var(--sans);
  cursor: pointer;
  transition: border-color var(--motion-fast) var(--ease);
}

.copy:hover {
  border-color: var(--accent-text);
}

.command-dark .copy:hover {
  border-color: var(--mint);
}

.copy.is-copied {
  color: var(--accent-text);
  border-color: var(--accent-text);
}

.command-dark .copy.is-copied {
  color: var(--mint);
  border-color: var(--mint);
}

/* Trace card: a crisp HTML rendition of the product's waterfall. */
.trace-card {
  padding: 30px 30px 26px;
  border-radius: var(--radius-lg);
  background: var(--panel);
  color: var(--paper);
  box-shadow:
    0 30px 80px -30px rgba(var(--shadow-rgb), 0.55),
    0 0 0 1px var(--panel-edge);
}

.trace-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.crumb {
  color: var(--muted-dark);
  font: 12px/1 var(--mono);
  letter-spacing: 0.04em;
}

.trace-card h2 {
  margin: 22px 0 4px;
  font-size: 28px;
}

.trace-card .muted {
  color: var(--muted-dark);
  margin: 0 0 22px;
  font-size: 14px;
}

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font: 600 12px/1.3 var(--sans);
}

.badge-error {
  color: var(--critical);
  box-shadow: inset 0 0 0 1px var(--critical);
}

.waterfall {
  display: grid;
  gap: 10px;
}

.wf-row {
  display: grid;
  grid-template-columns: 172px 1fr 56px;
  align-items: center;
  gap: 12px;
  font-size: 12.5px;
}

.wf-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted-dark);
}

.wf-name b {
  color: var(--paper);
  font-weight: 500;
}

.wf-name.in1 {
  padding-left: 12px;
}

.wf-name.in2 {
  padding-left: 24px;
}

.wf-track {
  position: relative;
  height: 10px;
}

.wf-bar {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--l);
  width: var(--w);
  min-width: 3px;
  border-radius: 4px;
  transform-origin: left center;
}

.js .reveal .wf-bar {
  transform: scaleX(0);
  transition: transform 900ms var(--ease-enter);
}

.js .reveal.is-visible .wf-bar {
  transform: scaleX(1);
}

.js .reveal.is-visible .wf-row:nth-child(2) .wf-bar {
  transition-delay: 90ms;
}

.js .reveal.is-visible .wf-row:nth-child(3) .wf-bar {
  transition-delay: 180ms;
}

.js .reveal.is-visible .wf-row:nth-child(4) .wf-bar {
  transition-delay: 270ms;
}

.js .reveal.is-visible .wf-row:nth-child(5) .wf-bar {
  transition-delay: 360ms;
}

.wf-bar.mint {
  background: var(--mint);
}

.wf-bar.iris {
  background: var(--iris);
}

.wf-bar.error {
  background: var(--critical);
}

.wf-dur {
  color: var(--muted-dark);
  font: 12px/1 var(--mono);
  text-align: right;
}

.trace-log {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  margin-top: 22px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 13.5px;
}

.trace-log em {
  color: var(--critical);
  font: normal 12px var(--mono);
}

.trace-log .mono {
  color: var(--muted-dark);
  font-size: 12.5px;
}

.lvl {
  font: 600 11.5px/1 var(--mono);
}

.lvl-error {
  color: var(--critical);
}

.flow {
  margin: 22px 0 14px;
  color: var(--mint);
  font-size: 13px;
}

/* ---------- numbers ---------- */

.numbers {
  border-block: 1px solid var(--line);
  background: var(--bg-raised);
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.number {
  padding: 34px 24px;
  border-left: 1px solid var(--line);
}

.number:first-child {
  border-left: 0;
  padding-left: 0;
}

.number strong {
  display: block;
  font-size: clamp(30px, 3.6vw, 42px);
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.number span {
  color: var(--muted);
  font-size: 15px;
}

/* ---------- steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.step {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-raised);
}

.step-num {
  color: var(--iris);
  font: 600 13px/1 var(--mono);
}

.step h3 {
  margin: 18px 0 10px;
  font-size: 30px;
}

.step p {
  color: var(--muted);
  margin: 0 0 20px;
}

.step code {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--paper);
  font-size: 12.5px;
  overflow-x: auto;
  white-space: nowrap;
}

/* ---------- tour ---------- */

.tour-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  border: 1px solid var(--line);
}

.tour-tabs button {
  padding: 9px 18px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font: 600 14px/1 var(--sans);
  cursor: pointer;
  transition:
    background var(--motion-fast) var(--ease),
    color var(--motion-fast) var(--ease);
}

.tour-tabs button[aria-selected='true'] {
  background: var(--solid-bg);
  color: var(--solid-text);
}

.window {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow:
    0 40px 100px -40px rgba(var(--shadow-rgb), 0.6),
    0 0 0 1px var(--panel-edge);
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line-dark);
}

.window-bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--line-dark);
}

.window-bar i:nth-child(1) {
  background: var(--critical);
}

.window-bar i:nth-child(2) {
  background: var(--warn);
}

.window-bar i:nth-child(3) {
  background: var(--mint);
}

.window-bar span {
  flex: 1;
  margin-right: 51px;
  color: var(--muted-dark);
  font-size: 12px;
  text-align: center;
}

.window figure {
  margin: 0;
}

.window figcaption {
  padding: 14px 18px;
  color: var(--muted-dark);
  font-size: 14px;
  border-top: 1px solid var(--line-dark);
}

/* ---------- cards (plan-card treatment from the brand pack) ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-raised);
  transition:
    transform var(--motion-base) var(--ease-enter),
    border-color var(--motion-base) var(--ease),
    box-shadow var(--motion-base) var(--ease);
}

.card::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 -55%;
  width: 45%;
  background: linear-gradient(100deg, transparent, color-mix(in srgb, var(--mint) 14%, transparent), transparent);
  transform: skewX(-12deg);
  transition: left var(--motion-slow) var(--ease-enter);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent-text) 45%, var(--line));
  box-shadow: 0 18px 44px -20px rgba(var(--shadow-rgb), 0.25);
}

.card:hover::before {
  left: 115%;
}

.card-featured {
  grid-column: span 2;
  border-color: color-mix(in srgb, var(--iris) 45%, var(--line));
  background: linear-gradient(180deg, color-mix(in srgb, var(--iris) 8%, var(--bg-raised)), var(--bg-raised) 60%);
}

.card-featured::after {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--mint), var(--iris));
}

.card-eyebrow {
  color: var(--accent-text);
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card h3 {
  margin: 14px 0 8px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

/* ---------- query panel ---------- */

.code-panel {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--panel);
  color: var(--paper);
  box-shadow:
    0 30px 80px -36px rgba(var(--shadow-rgb), 0.55),
    0 0 0 1px var(--panel-edge);
}

.code-panel-head {
  padding: 12px 18px;
  border-bottom: 1px solid var(--line-dark);
  color: var(--muted-dark);
  font-size: 12px;
}

.code-panel pre {
  margin: 0;
  padding: 20px 22px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.75;
}

.code-panel .c {
  color: #6f8197;
}

.code-panel .f {
  color: var(--info);
}

.code-panel .o {
  color: var(--muted-dark);
}

.code-panel .s {
  color: var(--mint);
}

.code-panel .n {
  color: #aba5ff;
}

.code-panel .k {
  color: var(--warn);
}

.diag {
  padding: 12px 18px;
  border-top: 1px solid var(--line-dark);
  color: var(--muted-dark);
  font-size: 12.5px;
}

.diag-ok {
  color: var(--mint);
}

/* ---------- terminal ---------- */

.terminal {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: #050e18;
  border: 1px solid var(--line-dark);
}

.terminal pre {
  margin: 0;
  padding: 22px 24px 26px;
  overflow-x: auto;
  color: #d5dde7;
  font-size: 13.5px;
  line-height: 1.7;
}

.t-prompt {
  color: var(--mint);
  user-select: none;
}

.t-dim {
  color: #6f8197;
}

.t-key {
  color: var(--muted-dark);
}

.t-link {
  color: var(--info);
}

.t-ok {
  color: var(--mint);
}

.checks {
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
}

.checks li {
  position: relative;
  padding-left: 26px;
  margin: 12px 0;
  color: var(--muted-dark);
}

.checks li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
}

.checks code,
.prose code {
  font-size: 0.88em;
}

.checks code {
  overflow-wrap: anywhere;
}

.section-dark code {
  color: var(--mint);
}

/* ---------- compare ---------- */

.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 32px;
  align-items: center;
}

.compare-col h3 {
  margin: 0 0 18px;
  font-size: 22px;
}

.stack {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0 0 16px;
  list-style: none;
}

.stack li {
  padding: 13px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-raised);
  color: var(--muted);
  font-size: 15px;
}

.compare-arrow {
  color: var(--iris);
  font-size: 36px;
}

.one-box {
  position: relative;
  padding: 40px 30px;
  margin-bottom: 16px;
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--panel-edge);
  color: var(--paper);
  font-size: 17px;
  line-height: 1.7;
  overflow: hidden;
}

.one-box::after {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--mint), var(--iris));
}

/* ---------- downloads ---------- */

.downloads {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 40px;
}

.dl {
  position: relative;
  display: grid;
  gap: 2px;
  padding: 22px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--paper);
  transition:
    transform var(--motion-base) var(--ease-enter),
    border-color var(--motion-base) var(--ease);
}

.dl:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--mint) 45%, var(--line-dark));
  text-decoration: none;
}

.dl-os {
  font-size: 20px;
  font-weight: 650;
}

.dl-arch {
  color: var(--muted-dark);
}

.dl-file {
  margin-top: 14px;
  color: var(--mint);
  font-size: 12.5px;
  overflow-wrap: anywhere;
}

.dl.is-recommended {
  border-color: var(--mint);
}

.dl.is-recommended::after {
  content: 'Your system';
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 3px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--mint) 16%, transparent);
  color: var(--mint);
  font: 600 11px/1.3 var(--sans);
}

.dl.is-unavailable {
  opacity: 0.55;
  pointer-events: none;
}

.install-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.install h3 {
  margin: 0 0 12px;
  font-size: 17px;
}

.install .muted {
  margin: 10px 0 0;
}

/* ---------- docs links ---------- */

.doc-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.doc-link {
  display: grid;
  gap: 4px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-raised);
  color: var(--text);
  transition:
    transform var(--motion-base) var(--ease-enter),
    border-color var(--motion-base) var(--ease);
}

.doc-link:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent-text) 45%, var(--line));
  text-decoration: none;
}

.doc-link strong::after {
  content: ' →';
  color: var(--accent-text);
}

.doc-link span {
  color: var(--muted);
  font-size: 15px;
}

/* ---------- CTA ---------- */

.cta {
  padding: 104px 0;
  background:
    radial-gradient(600px 400px at 15% 0%, color-mix(in srgb, var(--mint) 18%, transparent), transparent 70%),
    radial-gradient(600px 400px at 85% 100%, color-mix(in srgb, var(--iris) 22%, transparent), transparent 70%),
    var(--section-dark);
  color: var(--paper);
  text-align: center;
}

.cta h2 {
  font-size: clamp(34px, 5vw, 56px);
  margin: 0 0 30px;
}

.cta .hero-actions {
  justify-content: center;
  margin: 0;
}

/* ---------- footer ---------- */

.site-footer {
  padding: 64px 0 28px;
  border-top: 1px solid var(--line);
  background: var(--bg-raised);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
}

.footer-brand .tagline {
  margin: 16px 0 4px;
  font-weight: 600;
  color: var(--text-dim);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.footer-links h2 {
  margin: 0 0 12px;
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer-links a {
  display: block;
  padding: 4px 0;
  color: var(--text-dim);
  font-size: 15px;
}

.footer-base {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

/* ---------- docs pages ---------- */

.docs-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 56px;
  padding: 32px 0 80px;
}

.docs-toc {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  align-self: start;
  max-height: calc(100vh - var(--header-h) - 48px);
  overflow-y: auto;
}

.docs-nav {
  margin-bottom: 28px;
}

.toc h2 {
  margin: 0 0 8px;
  color: var(--muted);
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.toc a {
  display: block;
  padding: 5px 10px;
  margin-left: -10px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 15px;
}

.toc a:hover {
  background: var(--bg-tint);
  text-decoration: none;
}

.toc a {
  font-size: 14px;
  color: var(--muted);
}

.prose {
  max-width: 780px;
  font-size: 16.5px;
}

.prose h1 {
  font-size: 40px;
  margin: 0 0 24px;
}

.prose h2 {
  font-size: 27px;
  margin: 56px 0 14px;
  padding-top: 8px;
}

.prose h3 {
  font-size: 20px;
  margin: 36px 0 10px;
}

.prose p,
.prose li {
  color: var(--text-dim);
}

.prose li + li {
  margin-top: 4px;
}

.prose blockquote {
  margin: 24px 0;
  padding: 4px 20px;
  border-left: 3px solid var(--mint);
  background: var(--bg-tint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.prose :not(pre) > code {
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--bg-tint);
  color: var(--text);
}

.prose pre {
  position: relative;
  margin: 20px 0;
  padding: 18px 20px;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: var(--panel);
  box-shadow: 0 0 0 1px var(--panel-edge);
  color: #d5dde7;
  font-size: 13.5px;
  line-height: 1.65;
}

.prose pre .copy {
  position: absolute;
  top: 10px;
  right: 10px;
  border-color: var(--line-dark);
  color: var(--muted-dark);
  opacity: 0;
  transition: opacity var(--motion-fast) var(--ease);
}

.prose pre:hover .copy,
.prose pre .copy:focus-visible,
.prose pre .copy.is-copied {
  opacity: 1;
}

.prose pre .copy.is-copied {
  color: var(--mint);
  border-color: var(--mint);
}

.prose table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  margin: 20px 0;
  border-collapse: collapse;
  font-size: 15px;
}

.prose th,
.prose td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.prose img {
  margin: 20px 0;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px -28px rgba(var(--shadow-rgb), 0.5);
}

.prose td img {
  margin: 0;
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 40px 0;
}

.prose h2 a,
.prose h3 a {
  color: inherit;
}

.edit-link {
  margin-top: 48px;
}

.pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}

.pager a {
  display: grid;
  gap: 2px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  color: var(--text);
  font-weight: 600;
}

.pager a:hover {
  border-color: color-mix(in srgb, var(--accent-text) 45%, var(--line));
  text-decoration: none;
}

.pager span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.pager .next {
  text-align: right;
  grid-column: 2;
}

/* ---------- dropdowns (header "Docs" menu, docs page picker) ---------- */

.dropdown {
  position: relative;
}

.dropdown > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  cursor: pointer;
}

.dropdown > summary::-webkit-details-marker {
  display: none;
}

.dropdown .chevron {
  transition: transform var(--motion-base) var(--ease);
}

.dropdown[open] .chevron {
  transform: rotate(180deg);
}

.dropdown-panel {
  position: absolute;
  z-index: 60;
  top: calc(100% + 8px);
  left: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px 20px;
  width: min(680px, calc(100vw - 32px));
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  box-shadow: 0 24px 60px -24px rgba(var(--shadow-rgb), 0.35);
}

.dd-group {
  min-width: 0;
  margin-bottom: 10px;
}

.dd-group h3 {
  margin: 0 0 6px;
  color: var(--muted);
  font: 600 11.5px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.dd-group a {
  display: block;
  padding: 5px 8px;
  margin-left: -8px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 14.5px;
  font-weight: 500;
}

.dd-group a:hover {
  background: var(--bg-tint);
  color: var(--text);
  text-decoration: none;
}

.dd-group a[aria-current='page'] {
  background: color-mix(in srgb, var(--mint) 14%, transparent);
  color: var(--accent-text);
  font-weight: 600;
}

/* The header menu opens leftwards from "Docs" so it stays on screen. */
.nav-dropdown > .dropdown-panel {
  left: auto;
  right: 0;
}

.nav-dropdown > summary {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 15px;
  font-weight: 500;
  transition:
    background var(--motion-fast) var(--ease),
    color var(--motion-fast) var(--ease);
}

.nav-dropdown > summary:hover,
.nav-dropdown[open] > summary,
.nav-dropdown > summary[aria-current='page'] {
  background: var(--bg-tint);
  color: var(--text);
}

/* The docs page picker: the current page, opening onto every page. */
.doc-picker > summary {
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-raised);
  font-size: 15px;
  transition: border-color var(--motion-fast) var(--ease);
}

.doc-picker > summary:hover,
.doc-picker[open] > summary {
  border-color: var(--line-strong);
}

.doc-picker-group {
  color: var(--muted);
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.doc-picker-group::after {
  content: '/';
  margin-left: 10px;
  color: var(--line-strong);
}

.doc-picker-title {
  color: var(--text);
  font-weight: 600;
}

/* ---------- theme toggle ---------- */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition:
    background var(--motion-fast) var(--ease),
    color var(--motion-fast) var(--ease);
}

.theme-toggle:hover {
  background: var(--bg-tint);
  color: var(--text);
}

.theme-toggle-mobile {
  display: none;
  margin-left: auto;
}

.theme-toggle-mobile + .nav-toggle {
  margin-left: 6px;
}

/* Show the icon of the theme you'd switch *to*. */
.theme-toggle .icon-sun {
  display: none;
}

:root[data-theme='dark'] .theme-toggle .icon-sun {
  display: block;
}

:root[data-theme='dark'] .theme-toggle .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-toggle .icon-sun {
    display: block;
  }
  :root:not([data-theme='light']) .theme-toggle .icon-moon {
    display: none;
  }
}

/* ---------- diagrams (Mermaid) ---------- */

.prose .diagram {
  margin: 24px 0;
  padding: 20px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--bg-raised);
}

.prose .diagram pre.mermaid {
  margin: 0;
  padding: 0;
  overflow: visible;
  border-radius: 0;
  background: none;
  box-shadow: none;
  color: var(--muted);
  font-size: 12.5px;
  white-space: pre;
}

.prose .diagram pre.mermaid[data-processed='true'] {
  text-align: center;
  white-space: normal;
  line-height: normal;
}

/* Mermaid sizes its SVG itself (width 100%, max-width = natural size); just don't let other image
   rules interfere. */
.prose .diagram svg {
  display: inline-block;
}

/* ---------- selling points ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.pillars > * {
  min-width: 0;
}

.pillar {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-raised);
}

.pillar-wide {
  grid-column: span 2;
}

.pillar-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--mint) 14%, transparent);
  color: var(--accent-text);
}

.pillar:nth-child(even) .pillar-icon {
  background: color-mix(in srgb, var(--iris) 14%, transparent);
  color: var(--iris);
}

.pillar h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.pillar p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.pillar code {
  font-size: 13px;
  color: var(--text);
}

/* Planned, not shipped: visibly different from the shipped pillars. */
.pillar-roadmap {
  border-style: dashed;
  border-color: var(--line-strong);
  background: transparent;
}

.roadmap-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 9px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--iris) 14%, transparent);
  color: var(--iris);
  font: 600 11.5px/1.5 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: middle;
}

.pillar .pillar-link {
  margin-top: 12px;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.pillar-tags span {
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
  font-size: 13px;
}

/* ---------- responsive ---------- */

@media (max-width: 1100px) {
  .docs-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .docs-toc {
    display: none;
  }
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
  /* 8 cards fill 4 rows of 2 exactly once the featured card stops spanning. */
  .card-featured {
    grid-column: auto;
  }
}

@media (max-width: 920px) {
  .hero-grid,
  .split,
  .split-reverse {
    grid-template-columns: 1fr;
  }
  .split-reverse > :first-child {
    order: 2;
  }
  .steps,
  .install-grid,
  .doc-links {
    grid-template-columns: 1fr;
  }
  .downloads {
    grid-template-columns: repeat(2, 1fr);
  }
  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .number:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }
  .number:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
  .compare {
    grid-template-columns: 1fr;
  }
  .compare-arrow {
    transform: rotate(90deg);
    justify-self: center;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 80px 0;
  }

  .nav-toggle {
    display: flex;
  }
  .site-nav {
    position: absolute;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px 16px 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px -24px rgba(var(--shadow-rgb), 0.3);
  }
  .js .site-nav:not(.is-open) {
    display: none;
  }
  .site-nav .nav-cta {
    margin: 8px 0 0;
  }

  .docs-layout {
    padding-top: 20px;
  }

  /* Inside the mobile menu sheet the docs dropdown expands in place. */
  .nav-dropdown .dropdown-panel {
    position: static;
    width: auto;
    margin: 4px 0 8px;
    box-shadow: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .theme-toggle-desktop {
    display: none;
  }
  .theme-toggle-mobile {
    display: inline-flex;
  }
  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }
  .pillar-wide {
    grid-column: span 2;
  }
}

@media (max-width: 560px) {
  .pillars {
    grid-template-columns: 1fr;
  }
  .pillar-wide {
    grid-column: auto;
  }
  .dropdown-panel,
  .nav-dropdown .dropdown-panel {
    grid-template-columns: 1fr;
  }
  .cards,
  .downloads {
    grid-template-columns: 1fr;
  }
  .card-featured {
    grid-column: auto;
  }
  .wf-row {
    grid-template-columns: 110px 1fr 50px;
  }
  .trace-card {
    padding: 22px 18px;
  }
  .hero {
    padding: 56px 0 72px;
  }
  .footer-links {
    grid-template-columns: 1fr 1fr;
  }
  .prose h1 {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  /* SVG content is excluded: Mermaid lays diagrams out using its own transitions, and forcing them
     to ~0 makes it compute a huge, mostly empty canvas. */
  *:not(svg, svg *),
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .js .reveal,
  .js .reveal .wf-bar {
    opacity: 1;
    transform: none;
  }
}

/* Benchmark charts (inline SVG generated at build time). */

/* Build & footprint facts (executable size, bytes stored per event, ...). */
.facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1.4rem;
  margin: 1rem 0 2rem;
  padding: 1rem 1.1rem;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
}

.facts dt {
  color: var(--text-dim);
}

.facts dd {
  margin: 0;
  color: var(--text);
}
.chart-figure {
  margin: 1.5rem 0 2rem;
  padding: 1rem 1.1rem 0.4rem;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.chart-figure figcaption {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.chart-figure figcaption .muted {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.78rem;
  font-weight: 400;
}

.chart {
  display: block;
  width: 100%;
  height: auto;
  font-family: var(--sans);
}

.chart .chart-label {
  font-size: 12px;
  font-weight: 500;
  fill: var(--text-dim);
}

.chart .chart-value {
  font-size: 12px;
  fill: var(--muted);
}

.chart .chart-bar {
  fill: var(--iris);
}

.chart .chart-range {
  stroke: var(--muted);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.5;
}

.chart .chart-axis {
  stroke: var(--line);
  stroke-width: 1;
}

.chart .chart-tick {
  font-size: 11px;
  fill: var(--muted);
}

.chart .chart-line {
  fill: none;
  stroke: var(--iris);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.chart .chart-dot {
  fill: var(--iris);
  stroke: var(--bg-raised);
  stroke-width: 2;
}

/* Build/footprint facts (executable size, data directory, storage efficiency). */
.facts {
  display: grid;
  grid-template-columns: minmax(8rem, max-content) 1fr;
  gap: 0.15rem 1.25rem;
  margin: 1rem 0 2rem;
  padding: 0.9rem 1.1rem;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
}

.facts dt {
  color: var(--muted);
}

.facts dd {
  color: var(--text);
}

/* Version-history rows that measure footprint, not latency. */
.row-extra td {
  background: color-mix(in srgb, var(--iris) 6%, transparent);
}

.row-extra td:first-child {
  font-weight: 600;
}