@font-face {
  font-family: 'Bricolage Grotesque';
  src: url('fonts/bricolage-grotesque-latin.woff2') format('woff2');
  font-weight: 400 700;
  font-stretch: 75% 100%;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/jetbrains-mono-latin.woff2') format('woff2');
  font-weight: 400 500;
  font-display: swap;
}

/* Tokens. Radius rule: controls 10px, surfaces 16px, nothing else. */
:root {
  --paper: #f4f5f7;
  --surface: #ffffff;
  --ink: #15171c;
  --muted: #5d6470;
  --line: #e2e5ea;
  --accent: #ffd84d;
  --r-control: 10px;
  --r-surface: 16px;
  --shadow: 0 1px 2px rgb(21 23 28 / 0.05), 0 16px 48px rgb(21 23 28 / 0.08);
  --sans: 'Bricolage Grotesque', ui-sans-serif, system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 700;
  text-wrap: balance;
}

h2 {
  font-size: clamp(30px, 3.4vw, 42px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

code,
kbd {
  font-family: var(--mono);
  font-size: 0.86em;
}

.wrap {
  width: min(1160px, 100% - 48px);
  margin-inline: auto;
}

main > section {
  padding-block: 112px;
}

main > section + section {
  border-top: 1px solid var(--line);
}

/* ---------- Nav ---------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
}

.brand img {
  border-radius: 7px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  transition: color 120ms var(--ease);
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.nav-github svg {
  width: 18px;
  height: 18px;
}

/* ---------- Buttons ---------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 20px;
  border-radius: var(--r-control);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  white-space: nowrap;
  transition-property: background-color, box-shadow, scale;
  transition-duration: 120ms;
  transition-timing-function: var(--ease);
}

.button svg {
  width: 18px;
  height: 18px;
}

.button:active {
  scale: 0.97;
}

.button-primary {
  background: var(--accent);
  color: var(--ink);
  box-shadow: inset 0 -1px 0 rgb(21 23 28 / 0.12);
}

.button-primary:hover {
  background: #ffcf1f;
}

.button-quiet {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
  background: var(--surface);
}

.button-quiet:hover {
  box-shadow: inset 0 0 0 1px #c9ced6;
}

/* ---------- Hero ---------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 64px;
  padding-block: 56px 112px;
}

.hero h1 {
  font-size: clamp(48px, 6.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-stretch: 85%;
}

.lede {
  margin: 24px 0 36px;
  max-width: 30ch;
  font-size: 20px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- Hero demo: the same chat as a conversation and as its Markdown ---------- */

.demo {
  margin: 0;
}

.demo-stage {
  border-radius: var(--r-surface);
  background: var(--surface);
  box-shadow: var(--shadow), 0 0 0 1px var(--line);
  overflow: hidden;
}

.demo-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 10px 10px 12px;
  border-bottom: 1px solid var(--line);
}

.demo-tabs {
  display: flex;
  gap: 2px;
}

.demo-tabs button,
.demo-copy {
  all: unset;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  height: 36px;
  border-radius: var(--r-control);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition-property: background-color, color, scale;
  transition-duration: 120ms;
  transition-timing-function: var(--ease);
}

.demo-tabs button {
  padding: 0 12px;
  color: var(--muted);
}

.demo-tabs button:hover {
  color: var(--ink);
}

.demo-tabs button[aria-selected='true'] {
  background: var(--paper);
  color: var(--ink);
}

.demo-copy {
  gap: 8px;
  padding: 0 14px;
  background: var(--accent);
  color: var(--ink);
  box-shadow: inset 0 -1px 0 rgb(21 23 28 / 0.12);
}

.demo-copy:hover {
  background: #ffcf1f;
}

.demo-copy:active {
  scale: 0.97;
}

.demo-tabs button:focus-visible,
.demo-copy:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

/* Copy and check icons cross-fade in place when the copy succeeds. */
.demo-copy-icon {
  position: relative;
  width: 16px;
  height: 16px;
}

.demo-copy-icon svg {
  position: absolute;
  inset: 0;
  width: 16px;
  height: 16px;
  transition-property: opacity, scale, filter;
  transition-duration: 220ms;
  transition-timing-function: var(--ease);
}

.demo-copy-icon svg:last-child,
.demo-copy[data-copied] .demo-copy-icon svg:first-child {
  opacity: 0;
  scale: 0.25;
  filter: blur(4px);
}

.demo-copy[data-copied] .demo-copy-icon svg:last-child {
  opacity: 1;
  scale: 1;
  filter: blur(0);
}

/* Both views share one grid cell, so switching never changes the panel's height. */
.demo-views {
  display: grid;
}

.demo-view {
  grid-area: 1 / 1;
  padding: 28px;
  min-width: 0;
  transition-property: opacity, translate, visibility;
  transition-duration: 220ms;
  transition-timing-function: var(--ease);
}

.demo-markdown {
  background: #fbfbfc;
}

.demo[data-view='chat'] .demo-markdown,
.demo[data-view='markdown'] .demo-chat {
  opacity: 0;
  translate: 0 6px;
  visibility: hidden;
}

.bubble {
  max-width: 78%;
  margin: 0 0 20px auto;
  padding: 12px 16px;
  border-radius: 18px;
  background: #eceef2;
  font-size: 16px;
  line-height: 1.45;
}

.reply {
  display: grid;
  gap: 12px;
  font-size: 16px;
  line-height: 1.5;
}

.reply pre {
  margin: 0;
  padding: 12px 14px;
  border-radius: var(--r-control);
  background: var(--paper);
  overflow-x: auto;
}

.reply code {
  font-size: 13.5px;
}

.reply p code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--paper);
}

.md {
  margin: 0;
  font: 400 13.5px/1.6 var(--mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--ink);
}

.md b {
  font-weight: 500;
}

.md-mark,
.md-dim {
  color: #8a909b;
}

.demo figcaption strong {
  color: var(--ink);
  font-weight: 600;
}

.demo figcaption {
  margin-top: 14px;
  font-size: 14px;
  color: var(--muted);
}

/* ---------- Three ways to copy ---------- */

.ways-body {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  align-items: start;
  gap: 72px;
  margin-top: 48px;
}

.ways-shot {
  width: 100%;
  height: auto;
  border-radius: var(--r-surface);
  box-shadow: var(--shadow), 0 0 0 1px var(--line);
}

.ways-list {
  display: grid;
  gap: 32px;
  margin: 0;
}

.ways-list dt,
.gets-grid dt {
  font-size: 19px;
  font-weight: 650;
  margin-bottom: 6px;
}

.ways-list dd,
.gets-grid dd {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
}

.ways-list strong,
.ways-list em {
  color: var(--ink);
  font-weight: 600;
  font-style: normal;
}

kbd {
  display: inline-block;
  min-width: 1.9em;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line), 0 1px 0 var(--line);
  color: var(--ink);
  text-align: center;
}

/* ---------- What you get ---------- */

.gets-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px 48px;
  margin: 48px 0 0;
}

.gets-grid > div {
  padding-top: 20px;
  border-top: 2px solid var(--ink);
}

/* ---------- Privacy ---------- */

.privacy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}

.privacy h2 {
  max-width: 14ch;
}

.facts {
  display: grid;
  gap: 14px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.facts li {
  display: flex;
  gap: 12px;
  font-size: 18px;
}

.facts li::before {
  content: '';
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 0.55em;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 0 1px rgb(21 23 28 / 0.25);
}

.perms {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: var(--r-surface);
  box-shadow: 0 0 0 1px var(--line);
  overflow: hidden;
  font-size: 15px;
}

.perms caption {
  padding-bottom: 12px;
  text-align: left;
  font-weight: 650;
  font-size: 19px;
}

.perms th,
.perms td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
}

.perms thead th {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  background: #fafbfc;
}

.perms tbody th {
  font-weight: 600;
  white-space: nowrap;
}

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

.perms tbody tr {
  border-top: 1px solid var(--line);
}

/* ---------- Roadmap ---------- */

.checklist {
  columns: 2;
  column-gap: 48px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  break-inside: avoid;
  padding: 10px 0;
  font-size: 17px;
  color: var(--muted);
}

.checklist li::before,
.checklist li svg {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 5px;
}

.checklist li:not(.done)::before {
  content: '';
  box-shadow: inset 0 0 0 1.5px #b9bec7;
}

.checklist li.done {
  color: var(--ink);
}

.checklist li.done svg {
  padding: 3px;
  background: var(--ink);
  color: var(--accent);
}

/* ---------- Install ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: var(--r-control);
  background: var(--ink);
  color: var(--accent);
  font-weight: 700;
}

.steps code {
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
}

.install-note {
  margin-top: 40px;
  color: var(--muted);
}

/* ---------- Footer ---------- */

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 32px 48px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--muted);
}

.footer .brand {
  font-size: 16px;
  color: var(--ink);
}

/* ---------- Privacy policy page ---------- */

.policy {
  max-width: 720px;
  padding-block: 48px 96px;
}

.policy h1 {
  font-size: clamp(36px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.policy h2 {
  margin: 40px 0 12px;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.policy p,
.policy li {
  color: #3b414b;
}

.policy p + p {
  margin-top: 12px;
}

.policy ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 22px;
}

.policy-date {
  margin: 12px 0 32px;
  font-size: 15px;
  color: var(--muted);
}

/* ---------- Small screens ---------- */

@media (max-width: 900px) {
  main > section {
    padding-block: 72px;
  }

  .hero,
  .ways-body,
  .privacy {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .hero {
    padding-block: 24px 72px;
  }

  .ways-shot {
    max-width: 320px;
  }

  .gets-grid,
  .steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .checklist {
    columns: 1;
  }
}

@media (max-width: 600px) {
  .wrap {
    width: min(1160px, 100% - 32px);
  }

  .nav-links a:not(.nav-github) {
    display: none;
  }

  .lede {
    font-size: 18px;
  }

  .demo-view {
    padding: 20px;
  }

  /* Narrow screens: the Markdown wraps much taller, so size the panel to the view that is showing. */
  .demo[data-view='chat'] .demo-markdown,
  .demo[data-view='markdown'] .demo-chat {
    display: none;
  }

  .bubble,
  .reply {
    font-size: 15px;
  }

  .md {
    font-size: 12px;
  }

  .perms tbody th {
    white-space: normal;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0ms !important;
  }
}