/* ==========================================================================
   Kern - design system
   --------------------------------------------------------------------------
   A retro-modern interface: hard offset shadows instead of soft blur, 2px
   rules instead of hairlines, monospace micro-labels, and terminal chrome.
   The palette is driven by custom properties so a single [data-theme] swap
   repaints the whole site, and the values are stored as RGB triplets so
   Tailwind's alpha modifiers keep working against them.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */
:root {
  --bg: 244 243 239;
  --bg-alt: 236 235 230;
  --surface: 255 255 255;
  --surface-2: 246 245 241;
  --ink: 20 20 28;
  --muted: 104 104 118;
  --line: 20 20 28;
  --line-soft: 214 213 206;

  --accent: 79 70 229;
  --accent-hover: 67 56 202;
  --accent-soft: 224 231 255;
  --on-accent: 255 255 255;
  --accent-2: 8 145 178;
  --accent-2-soft: 207 244 250;
  --warn: 190 120 10;
  --ok: 22 128 96;

  --shadow: 20 20 28;
  --shadow-soft: 20 20 28;

  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;
  --border: 2px;
  --ring: 0 0 0 3px rgb(var(--accent) / 0.35);
  --maxw: 1200px;
  --nav-h: 68px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  --bg: 9 9 14;
  --bg-alt: 13 13 20;
  --surface: 18 18 27;
  --surface-2: 26 26 38;
  --ink: 231 231 240;
  --muted: 152 152 172;
  --line: 74 74 96;
  --line-soft: 40 40 55;

  --accent: 129 140 248;
  --accent-hover: 165 173 252;
  --accent-soft: 35 33 68;
  --on-accent: 12 12 20;
  --accent-2: 34 211 238;
  --accent-2-soft: 15 45 56;
  --warn: 251 191 36;
  --ok: 52 199 143;

  --shadow: 0 0 0;
  --shadow-soft: 0 0 0;
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: rgb(var(--bg));
  color: rgb(var(--ink));
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}

h1,
h2,
h3,
h4 {
  font-family: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

p {
  margin: 0 0 1em;
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration: none;
}

code,
pre,
kbd {
  font-family: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

::selection {
  background: rgb(var(--accent) / 0.25);
}

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

/* --------------------------------------------------------------------------
   2b. Scrollbars
   --------------------------------------------------------------------------
   Themed to match the page rather than the operating system, so the
   scroll area reads as part of the interface.
   -------------------------------------------------------------------------- */
* {
  scrollbar-width: thin;
  scrollbar-color: rgb(var(--accent) / 0.55) rgb(var(--surface-2));
}

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: rgb(var(--surface-2));
  border-left: 1px solid rgb(var(--line-soft));
}

::-webkit-scrollbar-thumb {
  background: rgb(var(--accent) / 0.5);
  border: 3px solid rgb(var(--surface-2));
  border-radius: 999px;
  transition: background 0.18s var(--ease);
}

::-webkit-scrollbar-thumb:hover {
  background: rgb(var(--accent) / 0.85);
}

::-webkit-scrollbar-corner {
  background: rgb(var(--surface-2));
}

/* Scrollable regions inherit the same treatment */
.term__body,
.table-wrap,
.prose pre,
.docs__side {
  scrollbar-width: thin;
  scrollbar-color: rgb(var(--accent) / 0.55) rgb(var(--surface-2));
}

/* --------------------------------------------------------------------------
   3. Layout helpers
   -------------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 20px;
}

/* The theme toggle shows one icon per theme, chosen by CSS so it is correct
   before any script runs. */
[data-theme="light"] [data-icon="moon"] {
  display: none !important;
}

[data-theme="dark"] [data-icon="sun"] {
  display: none !important;
}

[data-header].is-stuck {
  box-shadow: 0 2px 0 rgb(var(--line));
}

.section {
  padding-block: clamp(56px, 8vw, 104px);
  position: relative;
}

.section--alt {
  background: rgb(var(--bg-alt));
  border-block: var(--border) solid rgb(var(--line));
}

.label {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgb(var(--muted));
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
}

.label::before {
  content: "";
  width: 18px;
  height: 2px;
  background: rgb(var(--accent));
}

.label--accent {
  color: rgb(var(--accent));
}

.lede {
  font-size: clamp(16px, 1.6vw, 19px);
  color: rgb(var(--muted));
  max-width: 62ch;
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.section-head h2 {
  font-size: clamp(28px, 4.2vw, 46px);
}

/* A gradient rule under every section heading. */
.section-head h2::after {
  content: "";
  display: block;
  height: 3px;
  width: 62px;
  margin-top: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgb(var(--accent)), rgb(var(--accent-2)));
}

/* Dot grid backdrop */
.dots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgb(var(--line) / 0.16) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
}

/* --------------------------------------------------------------------------
   4. Buttons
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: transparent;
  --btn-fg: rgb(var(--ink));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 20px;
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 4px 4px 0 rgb(var(--shadow));
  transition: transform 0.16s var(--ease), box-shadow 0.16s var(--ease),
    background-color 0.16s var(--ease);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgb(var(--shadow));
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgb(var(--shadow));
}

.btn--primary {
  --btn-bg: rgb(var(--accent));
  --btn-fg: rgb(var(--on-accent));
}

.btn--primary:hover {
  --btn-bg: rgb(var(--accent-hover));
}

.btn--ghost {
  --btn-bg: rgb(var(--surface));
}

.btn--sm {
  padding: 9px 15px;
  font-size: 13.5px;
  box-shadow: 3px 3px 0 rgb(var(--shadow));
}

.btn svg {
  width: 17px;
  height: 17px;
}

/* --------------------------------------------------------------------------
   4b. Navigation links
   --------------------------------------------------------------------------
   The active page is marked with an accent underline that grows in, and a
   tinted pill behind it. The colour comes from the theme tokens, so it
   follows the light and dark palettes.
   -------------------------------------------------------------------------- */
.navlink {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 13px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: rgb(var(--muted));
  white-space: nowrap;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.navlink:hover {
  color: rgb(var(--ink));
  background: rgb(var(--surface-2));
}

/* The indicator itself. */
.navlink::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1px;
  width: 0;
  height: 3px;
  border-radius: 999px;
  background: rgb(var(--accent));
  box-shadow: 0 0 10px rgb(var(--accent) / 0.6);
  transform: translateX(-50%);
  transition: width 0.3s var(--ease);
}

.navlink[aria-current="page"] {
  color: rgb(var(--accent));
  font-weight: 600;
  background: rgb(var(--accent-soft));
}

.navlink[aria-current="page"]::after {
  width: 20px;
}

/* The row variant is used in the mobile drawer, where a bar on the
   leading edge reads better than an underline. */
.navlink--row {
  width: 100%;
  border-radius: 9px;
  padding: 11px 13px;
  font-weight: 500;
}

.navlink--row::after {
  display: none;
}

.navlink--row[aria-current="page"] {
  border-left: 3px solid rgb(var(--accent));
  padding-left: 10px;
  background: rgb(var(--accent-soft));
}

/* --------------------------------------------------------------------------
   5. Cards
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  background: rgb(var(--surface));
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: 5px 5px 0 rgb(var(--shadow-soft));
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 rgb(var(--shadow));
  border-color: rgb(var(--accent));
}

.card__icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: var(--border) solid rgb(var(--line));
  border-radius: 12px;
  background: rgb(var(--accent-soft));
  color: rgb(var(--accent));
  margin-bottom: 18px;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
    color 0.2s var(--ease);
}

.card:hover .card__icon {
  transform: rotate(-6deg) scale(1.06);
  background: rgb(var(--accent));
  color: rgb(var(--on-accent));
}

.card__icon svg {
  width: 23px;
  height: 23px;
}

.card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  line-height: 1.25;
}

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

/* A second paragraph inside a card gets breathing room from the first. */
.card p + p {
  margin-top: 10px;
}

.card ul,
.card ol {
  margin: 12px 0 0;
  padding-left: 1.2em;
  color: rgb(var(--muted));
  font-size: 14.5px;
}

.card li { margin-bottom: 6px; }
.card li::marker { color: rgb(var(--accent)); }

/* A label sitting directly above a heading needs air under it. */
.card > .label { margin-bottom: 10px; }

/* --------------------------------------------------------------------------
   6. Chips, tags, badges
   -------------------------------------------------------------------------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border: var(--border) solid rgb(var(--line));
  border-radius: 999px;
  background: rgb(var(--surface));
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.chip svg {
  width: 14px;
  height: 14px;
  color: rgb(var(--accent));
}

.chip--plain {
  background: rgb(var(--surface-2));
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: var(--border) solid rgb(var(--line));
  border-radius: 999px;
  background: rgb(var(--surface));
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgb(var(--ok));
  box-shadow: 0 0 0 3px rgb(var(--ok) / 0.2);
}

/* --------------------------------------------------------------------------
   7. Terminal chrome
   -------------------------------------------------------------------------- */
.term {
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius);
  background: rgb(var(--surface));
  box-shadow: 6px 6px 0 rgb(var(--shadow));
  overflow: hidden;
}

.term__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgb(var(--surface-2));
  border-bottom: var(--border) solid rgb(var(--line));
}

.term__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1.5px solid rgb(var(--line));
  background: rgb(var(--bg));
}

.term__dot:nth-child(1) { background: #ff5f57; }
.term__dot:nth-child(2) { background: #febc2e; }
.term__dot:nth-child(3) { background: #28c840; }

.term__path {
  margin-left: 8px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 12px;
  color: rgb(var(--muted));
}

.term__body {
  padding: 20px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  line-height: 1.9;
  overflow-x: auto;
}

.term__line {
  white-space: pre;
  margin-bottom: 3px;
}

.term__line:last-child { margin-bottom: 0; }
.term__prompt { color: rgb(var(--accent)); }
.term__cmd { color: rgb(var(--ink)); font-weight: 600; }
.term__out { color: rgb(var(--muted)); }
.term__ok { color: rgb(var(--ok)); }
.term__hi { color: rgb(var(--accent-2)); }

.caret {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  vertical-align: -0.18em;
  background: rgb(var(--accent));
  animation: blink 1.05s steps(2, start) infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* --------------------------------------------------------------------------
   8. Tabs
   -------------------------------------------------------------------------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius-sm);
  background: rgb(var(--surface));
  color: rgb(var(--muted));
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.16s var(--ease);
}

.tab:hover { color: rgb(var(--ink)); transform: translateY(-1px); }

.tab[aria-selected="true"] {
  background: rgb(var(--accent));
  border-color: rgb(var(--accent));
  color: rgb(var(--on-accent));
  box-shadow: 3px 3px 0 rgb(var(--shadow));
}

.tab svg { width: 16px; height: 16px; }

.tabpanel[hidden] { display: none; }

/* --------------------------------------------------------------------------
   9. Accordion
   -------------------------------------------------------------------------- */
.acc {
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius);
  background: rgb(var(--surface));
  overflow: hidden;
  box-shadow: 5px 5px 0 rgb(var(--shadow-soft));
}

.acc + .acc { margin-top: 0; }

.acc__head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  background: none;
  border: 0;
  color: inherit;
  font-family: "Space Grotesk", sans-serif;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.acc__head:hover { background: rgb(var(--surface-2)); }

.acc__head svg {
  width: 19px;
  height: 19px;
  flex: none;
  transition: transform 0.22s var(--ease);
}

.acc__head[aria-expanded="true"] svg { transform: rotate(45deg); }

.acc__body {
  padding: 0 20px 22px;
  color: rgb(var(--muted));
  font-size: 15px;
}

.acc__head[aria-expanded="true"] {
  border-bottom: var(--border) solid rgb(var(--line-soft));
}

.acc__head[aria-expanded="true"] + .acc__body {
  padding-top: 20px;
  border-top: var(--border) solid transparent;
}

.acc__body p {
  margin: 0;
}

.acc__body p + p,
.acc__body p + ul,
.acc__body ul + p {
  margin-top: 12px;
}

.acc__body code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.88em;
  background: rgb(var(--surface-2));
  border: 1px solid rgb(var(--line-soft));
  border-radius: 5px;
  padding: 1px 6px;
  color: rgb(var(--ink));
}

/* --------------------------------------------------------------------------
   9b. Scattered questions
   --------------------------------------------------------------------------
   The FAQ reads as a set of notes thrown across a desk rather than a
   tidy list: each one sits at its own angle and offset, and a few
   overlap the one above. On a narrow screen it collapses back to a
   plain single column.
   -------------------------------------------------------------------------- */
.notes {
  position: relative;
  display: flex;
  flex-direction: column;
}

.note {
  width: var(--w, 62%);
  margin-bottom: 18px;
  transform: rotate(var(--rot, 0deg)) translateX(var(--x, 0));
  transform-origin: 50% 0;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  will-change: transform;
}

.note:hover,
.note:focus-within {
  transform: rotate(0deg) translateX(var(--x, 0)) translateY(-4px) scale(1.01);
  z-index: 6;
}

/* The notes read as paper lying on a desk: a deeper shadow lifts them
   off the page, and a strip of tape holds some of them down. */
.note .acc {
  position: relative;
  box-shadow: 7px 9px 0 rgb(var(--shadow-soft));
}

.note:nth-child(odd) .acc::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 50%;
  width: 58px;
  height: 19px;
  transform: translateX(-50%) rotate(-4deg);
  background: rgb(var(--accent) / 0.2);
  border: 1.5px solid rgb(var(--line) / 0.32);
  border-radius: 3px;
  pointer-events: none;
}

.note:nth-child(3n) .acc::before {
  transform: translateX(-50%) rotate(5deg);
  background: rgb(var(--accent-2) / 0.2);
}

/* Alternate which note sits on top of the one it overlaps. */
.note:nth-child(even) { z-index: 3; }
.note:nth-child(odd) { z-index: 2; }

/* Five positions, repeated, so any number of questions scatters well.
   The angles and offsets are deliberately wide: the notes should look
   thrown onto the page, not aligned. */
.note:nth-child(5n + 1) {
  --w: 66%;
  --x: -2%;
  --rot: -1.8deg;
}

.note:nth-child(5n + 2) {
  --w: 54%;
  --x: 40%;
  --rot: 1.5deg;
  margin-top: -26px;
}

.note:nth-child(5n + 3) {
  --w: 70%;
  --x: 8%;
  --rot: -0.9deg;
  margin-top: -12px;
}

.note:nth-child(5n + 4) {
  --w: 52%;
  --x: 30%;
  --rot: 2.1deg;
  margin-top: -30px;
}

.note:nth-child(5n + 5) {
  --w: 62%;
  --x: 0%;
  --rot: 1.1deg;
  margin-top: -20px;
}

/* The second cycle is pushed the other way, so the scatter does not
   look like a repeating pattern down the page. */
.note:nth-child(10n + 6) {
  --w: 58%;
  --x: 34%;
  --rot: -2.2deg;
  margin-top: -24px;
}

.note:nth-child(10n + 7) {
  --w: 68%;
  --x: -1%;
  --rot: 1.3deg;
  margin-top: -16px;
}

.note:nth-child(10n + 8) {
  --w: 50%;
  --x: 44%;
  --rot: -1.6deg;
  margin-top: -32px;
}

.note:nth-child(10n + 9) {
  --w: 64%;
  --x: 12%;
  --rot: 2.4deg;
  margin-top: -22px;
}

.note:nth-child(10n + 10) {
  --w: 60%;
  --x: 26%;
  --rot: -0.7deg;
  margin-top: -18px;
}

@media (max-width: 860px) {
  .note {
    width: 100%;
    --x: 0% !important;
    --rot: 0deg !important;
    margin-top: 0 !important;
    transform: none;
  }

  .note:hover,
  .note:focus-within {
    transform: translateY(-2px);
  }
}

/* --------------------------------------------------------------------------
   10. Stats
   -------------------------------------------------------------------------- */
.stat {
  text-align: center;
  padding: 22px 14px;
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius);
  background: rgb(var(--surface));
}

.stat__value {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: rgb(var(--accent));
  font-variant-numeric: tabular-nums;
}

.stat__label {
  margin-top: 8px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgb(var(--muted));
}

/* --------------------------------------------------------------------------
   11. Tables
   -------------------------------------------------------------------------- */
.table-wrap {
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius);
  overflow-x: auto;
  background: rgb(var(--surface));
  box-shadow: 5px 5px 0 rgb(var(--shadow-soft));
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  min-width: 560px;
}

thead th {
  background: rgb(var(--surface-2));
  text-align: left;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgb(var(--muted));
  padding: 13px 16px;
  border-bottom: var(--border) solid rgb(var(--line));
}

tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid rgb(var(--line-soft));
  vertical-align: top;
}

tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgb(var(--surface-2)); }

td code {
  font-size: 13px;
  background: rgb(var(--surface-2));
  border: 1px solid rgb(var(--line-soft));
  border-radius: 5px;
  padding: 2px 6px;
}

/* --------------------------------------------------------------------------
   12. Marquee
   -------------------------------------------------------------------------- */
.marquee {
  overflow: hidden;
  border-block: var(--border) solid rgb(var(--line));
  background: rgb(var(--surface));
  padding-block: 13px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  gap: 46px;
  width: max-content;
  animation: slide 34s linear infinite;
}

.marquee:hover .marquee__track { animation-play-state: paused; }

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgb(var(--muted));
  white-space: nowrap;
}

.marquee__item svg { width: 15px; height: 15px; color: rgb(var(--accent)); }

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

/* --------------------------------------------------------------------------
   13. Scroll reveal
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee__track { animation: none; }
  .caret { animation: none; }
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* --------------------------------------------------------------------------
   14. Device frame for screenshots
   -------------------------------------------------------------------------- */
.device {
  position: relative;
  border: var(--border) solid rgb(var(--line));
  border-radius: 26px;
  background: rgb(var(--surface));
  padding: 8px;
  box-shadow: 7px 7px 0 rgb(var(--shadow));
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.device:hover {
  transform: translate(-3px, -3px);
  box-shadow: 11px 11px 0 rgb(var(--shadow));
}

.device img {
  display: block;
  width: 100%;
  border-radius: 18px;
  background: rgb(var(--surface-2));
}

.device__cap {
  margin-top: 12px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgb(var(--muted));
  text-align: center;
}

/* --------------------------------------------------------------------------
   14b. Brand tile
   --------------------------------------------------------------------------
   The launcher artwork is white on transparency, so it needs the dark
   tile behind it to be visible on a light page. This reproduces the
   real launcher icon exactly.
   -------------------------------------------------------------------------- */
.brand-tile {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  overflow: hidden;
  border-radius: 9px;
  border: var(--border) solid rgb(var(--line));
  background: #151a2a;
}

.brand-tile img {
  display: block;
  width: 100%;
  height: 100%;
}

/* --------------------------------------------------------------------------
   14c. Demo
   --------------------------------------------------------------------------
   The demo is a tall phone recording. It is capped to the viewport
   height so the whole thing is visible at once, with no scrolling.
   -------------------------------------------------------------------------- */
.demo {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.demo__frame {
  width: auto;
  max-width: 100%;
  padding: 8px;
}

.demo__frame img {
  display: block;
  width: auto;
  height: min(76vh, 780px);
  max-width: 100%;
  border-radius: 18px;
  background: rgb(var(--surface-2));
}

/* On a narrow screen the recording sits beside the text rather than
   below it, so it is scaled down to leave the column readable. */
@media (max-width: 860px) {
  .demo__frame {
    padding: 6px;
  }

  .demo__frame img {
    height: min(42vh, 380px);
  }
}

@media (max-width: 480px) {
  .demo__frame img {
    height: min(38vh, 320px);
  }
}

/* --------------------------------------------------------------------------
   14d. Screenshot gallery
   --------------------------------------------------------------------------
   The screen gallery keeps a grid at every width rather than stacking,
   because the four shots read as a set. On a phone it becomes two
   columns and the frames tighten up so they still fit.
   -------------------------------------------------------------------------- */
.g-screens {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 1024px) {
  .g-screens {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .g-screens {
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .g-screens .device {
    padding: 5px;
    border-radius: 15px;
    box-shadow: 4px 4px 0 rgb(var(--shadow));
  }

  .g-screens .device img {
    border-radius: 11px;
  }

  .g-screens .device__cap {
    font-size: 9px;
    letter-spacing: 0.07em;
    margin-top: 8px;
  }
}

/* --------------------------------------------------------------------------
   15. Prose (documentation pages)
   -------------------------------------------------------------------------- */
.prose { max-width: 78ch; }

.prose h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  margin-top: 1.8em;
  padding-top: 1.1em;
  border-top: var(--border) solid rgb(var(--line-soft));
  scroll-margin-top: calc(var(--nav-h) + 20px);
}

.prose h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }

.prose h3 {
  font-size: 18px;
  margin-top: 1.5em;
  scroll-margin-top: calc(var(--nav-h) + 20px);
}

.prose p,
.prose li { color: rgb(var(--muted)); }

.prose strong { color: rgb(var(--ink)); font-weight: 650; }

.prose a:not(.btn) {
  color: rgb(var(--accent));
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.prose ul,
.prose ol { padding-left: 1.3em; margin: 0 0 1em; }
.prose li { margin-bottom: 0.45em; }
.prose li::marker { color: rgb(var(--accent)); }

.prose :not(pre) > code {
  font-size: 0.88em;
  background: rgb(var(--surface-2));
  border: 1px solid rgb(var(--line-soft));
  border-radius: 5px;
  padding: 2px 6px;
  color: rgb(var(--ink));
}

.prose pre {
  background: rgb(var(--surface-2));
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.7;
  margin: 0 0 1.2em;
  position: relative;
}

.prose pre code { background: none; border: 0; padding: 0; font-size: inherit; }

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1.5px solid rgb(var(--line));
  border-radius: 6px;
  background: rgb(var(--surface));
  color: rgb(var(--muted));
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.16s var(--ease);
}

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

.copy-btn:hover { color: rgb(var(--accent)); border-color: rgb(var(--accent)); }
.copy-btn svg { width: 13px; height: 13px; }

.callout {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border: var(--border) solid rgb(var(--line));
  border-left-width: 6px;
  border-radius: var(--radius-sm);
  background: rgb(var(--surface-2));
  margin: 0 0 1.2em;
}

.callout svg { width: 19px; height: 19px; flex: none; margin-top: 2px; }
.callout p { margin: 0; font-size: 15px; }
.callout strong { display: block; margin-bottom: 2px; }

.callout--note { border-left-color: rgb(var(--accent)); }
.callout--note svg { color: rgb(var(--accent)); }
.callout--warn { border-left-color: rgb(var(--warn)); }
.callout--warn svg { color: rgb(var(--warn)); }
.callout--ok { border-left-color: rgb(var(--ok)); }
.callout--ok svg { color: rgb(var(--ok)); }

/* --------------------------------------------------------------------------
   16. Docs layout
   -------------------------------------------------------------------------- */
.docs {
  display: grid;
  grid-template-columns: 258px minmax(0, 1fr);
  gap: 44px;
  align-items: start;
  padding-top: 36px;
}

.docs__side {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
  max-height: calc(100vh - var(--nav-h) - 40px);
  overflow-y: auto;
  padding-right: 6px;
}

/* The drawer toggle only exists on narrow screens. */
.docs__toggle {
  display: none;
  width: 100%;
  align-items: center;
  gap: 11px;
  padding: 13px 15px;
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius-sm);
  background: rgb(var(--surface));
  color: rgb(var(--ink));
  font-family: "Space Grotesk", sans-serif;
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  box-shadow: 4px 4px 0 rgb(var(--shadow));
}

.docs__toggle svg {
  width: 18px;
  height: 18px;
  flex: none;
  color: rgb(var(--accent));
}

.docs__toggle-chevron {
  margin-left: auto;
  transition: transform 0.24s var(--ease);
}

.docs__toggle[aria-expanded="true"] .docs__toggle-chevron {
  transform: rotate(180deg);
}

.docs__side-body {
  margin-top: 16px;
}

.docs__search {
  position: relative;
  margin-bottom: 18px;
}

.docs__search svg {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: rgb(var(--muted));
  pointer-events: none;
}

.docs__search input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius-sm);
  background: rgb(var(--surface));
  color: rgb(var(--ink));
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 13px;
}

.docs__search input::placeholder { color: rgb(var(--muted)); }

.docs__nav { display: flex; flex-direction: column; gap: 1px; }

.docs__nav a {
  display: block;
  padding: 7px 12px;
  border-radius: 7px;
  font-size: 14px;
  color: rgb(var(--muted));
  border-left: 2px solid transparent;
  transition: all 0.14s var(--ease);
}

.docs__nav a:hover { color: rgb(var(--ink)); background: rgb(var(--surface-2)); }

.docs__nav a.is-active {
  color: rgb(var(--accent));
  background: rgb(var(--accent-soft));
  border-left-color: rgb(var(--accent));
  font-weight: 600;
}

.docs__group {
  margin-top: 18px;
  padding: 0 12px 6px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(var(--muted));
}

.docs__foot {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid rgb(var(--line-soft));
}

/* --------------------------------------------------------------------------
   17. Steps
   -------------------------------------------------------------------------- */
.steps { counter-reset: step; display: flex; flex-direction: column; gap: 18px; }

.step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.step__num {
  counter-increment: step;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: var(--border) solid rgb(var(--line));
  border-radius: 13px;
  background: rgb(var(--accent));
  color: rgb(var(--on-accent));
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 4px 4px 0 rgb(var(--shadow));
}

.step__num::before { content: counter(step); }

.step__body h2 {
  font-size: 18px;
  margin-bottom: 6px;
}

.step__body p {
  color: rgb(var(--muted));
  margin: 0 0 10px;
}

/* --------------------------------------------------------------------------
   18. CTA band
   -------------------------------------------------------------------------- */
.cta {
  position: relative;
  overflow: hidden;
  border: var(--border) solid rgb(var(--line));
  border-radius: var(--radius-lg);
  background: rgb(var(--accent));
  color: rgb(var(--on-accent));
  padding: clamp(32px, 5vw, 60px);
  text-align: center;
  box-shadow: 8px 8px 0 rgb(var(--shadow));
}

.cta h2 { color: inherit; font-size: clamp(26px, 3.6vw, 40px); }
.cta p { color: rgb(var(--on-accent) / 0.82); max-width: 58ch; margin-inline: auto; }

.cta .btn--ghost {
  --btn-bg: rgb(var(--on-accent));
  --btn-fg: rgb(var(--accent));
}

/* --------------------------------------------------------------------------
   19. Utilities
   -------------------------------------------------------------------------- */
.grid { display: grid; gap: 18px; }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.flex { display: flex; }
.between { justify-content: space-between; }
.center { align-items: center; }
.wrap { flex-wrap: wrap; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-6 { margin-bottom: 24px; }
.text-center { text-align: center; }
.hide { display: none !important; }

/* --------------------------------------------------------------------------
   21. Motion and polish
   -------------------------------------------------------------------------- */

/* Scroll progress bar */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: linear-gradient(
    90deg,
    rgb(var(--accent)),
    rgb(var(--accent-2))
  );
  z-index: 60;
  pointer-events: none;
}

/* Gradient text for the emphasised line of the hero */
.ink-gradient {
  background: linear-gradient(
    100deg,
    rgb(var(--accent)) 0%,
    rgb(var(--accent-2)) 55%,
    rgb(var(--accent)) 100%
  );
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient 7s ease-in-out infinite;
}

@keyframes gradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Soft colour orbs behind the hero */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(72px);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

.orb--a {
  width: 420px;
  height: 420px;
  top: -110px;
  right: -70px;
  background: rgb(var(--accent) / 0.5);
  animation: drift 17s ease-in-out infinite;
}

.orb--b {
  width: 340px;
  height: 340px;
  bottom: -130px;
  left: -90px;
  background: rgb(var(--accent-2) / 0.42);
  animation: drift 21s ease-in-out infinite reverse;
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(34px, -26px) scale(1.12); }
}

/* A gentle float on the hero terminal */
.float {
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* A pulsing live dot */
.pulse {
  position: relative;
}

.pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgb(var(--ok));
  animation: ring 1.9s ease-out infinite;
}

@keyframes ring {
  0% { transform: scale(0.6); opacity: 0.9; }
  100% { transform: scale(1.9); opacity: 0; }
}

/* Back to top */
.totop {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 45;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: var(--border) solid rgb(var(--line));
  border-radius: 13px;
  background: rgb(var(--surface));
  color: rgb(var(--ink));
  box-shadow: 4px 4px 0 rgb(var(--shadow));
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: all 0.24s var(--ease);
}

.totop.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.totop:hover {
  background: rgb(var(--accent));
  color: rgb(var(--on-accent));
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgb(var(--shadow));
}

.totop svg { width: 19px; height: 19px; }

/* Section heading with a gradient rule underneath */
.rule {
  height: 3px;
  width: 62px;
  margin-top: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgb(var(--accent)), rgb(var(--accent-2)));
}

/* Marquee items light up on hover */
.marquee__item { transition: color 0.2s var(--ease); }
.marquee__item:hover { color: rgb(var(--accent)); }

/* The hero badge gets a soft halo */
.halo {
  box-shadow: 0 0 0 4px rgb(var(--accent) / 0.12);
}

@media (prefers-reduced-motion: reduce) {
  .ink-gradient,
  .orb,
  .float,
  .pulse::after {
    animation: none !important;
  }
}
@media (max-width: 1024px) {
  .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .docs { grid-template-columns: 1fr; gap: 26px; }

  /* The sidebar becomes a drawer that is closed until it is asked for. */
  .docs__side {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .docs__toggle { display: flex; }

  .docs__side-body {
    display: none;
    margin-top: 16px;
    padding: 16px;
    border: var(--border) solid rgb(var(--line));
    border-radius: var(--radius);
    background: rgb(var(--surface));
    box-shadow: 4px 4px 0 rgb(var(--shadow-soft));
    max-height: 62vh;
    overflow-y: auto;
  }

  .docs__side.is-open .docs__side-body { display: block; }
  .docs__foot { display: none; }
  .docs__side.is-open .docs__foot { display: block; }
}

@media (max-width: 760px) {
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .step { grid-template-columns: 38px minmax(0, 1fr); gap: 14px; }
  .step__num { width: 38px; height: 38px; font-size: 15px; border-radius: 11px; }
  .card { padding: 22px; }
  .prose pre { font-size: 12.5px; }
  .section-head h2 { font-size: clamp(25px, 7vw, 34px); }
  .totop { right: 14px; bottom: 14px; width: 42px; height: 42px; }
}

@media (max-width: 560px) {
  .shell { padding-inline: 16px; }
  .term__body { font-size: 12px; padding: 15px; }
  .btn { width: 100%; }
  .btn--sm { width: auto; }
  .stack-sm { flex-direction: column; align-items: stretch; }
  .card { padding: 20px; }
  .card__icon { width: 42px; height: 42px; margin-bottom: 15px; }
  .card h3 { font-size: 17px; margin-bottom: 10px; }
  .term__body { line-height: 1.8; }
}