:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --border: #334155;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #22c55e;
  --accent-text: #052e16;
  --accent-soft: rgb(34 197 94 / 0.14);
  --danger: #f87171;
  --code-bg: #0b1222;
  --tok-tag: #7dd3fc;
  --tok-attr: #c4b5fd;
  --tok-string: #86efac;
  --tok-keyword: #f9a8d4;
  --tok-placeholder: #fcd34d;
  --tok-comment: #64748b;

  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 10px;
  --width: 1120px;

  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-2: #e2e8f0;
    --border: #e2e8f0;
    --text: #0f172a;
    --muted: #475569;
    --accent: #15803d;
    --accent-text: #ffffff;
    --accent-soft: rgb(21 128 61 / 0.1);
    --danger: #b91c1c;
    --code-bg: #0f172a;

    color-scheme: light;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
code, pre, textarea { font-family: var(--font-mono); }

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

.container {
  width: 100%;
  max-width: var(--width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  padding: 8px 12px;
  background: var(--accent);
  color: var(--accent-text);
  z-index: 50;
}

.skip-link:focus { top: 16px; }

/* Navigation */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}

.logo {
  font: 700 18px var(--font-mono);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s, background-color 0.2s;
}

.nav-links a:hover { color: var(--text); background: var(--surface); }

.icon { width: 18px; height: 18px; flex: none; }

/* Hero */

.hero { padding: 96px 0 72px; }

.eyebrow {
  margin: 0 0 20px;
  color: var(--accent);
  font: 500 14px var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 14ch;
  font-size: clamp(3rem, 9vw, 6.5rem);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.hero h1 em { color: var(--accent); font-style: normal; }

.hero .lead {
  max-width: 56ch;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font: 500 16px var(--font-sans);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.button:hover { border-color: var(--muted); }

.button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
}

.button--primary:hover { background: color-mix(in srgb, var(--accent) 85%, white); border-color: transparent; }

.install {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 0 8px 0 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--code-bg);
  color: #e2e8f0;
  font: 15px var(--font-mono);
}

.install .prompt { color: var(--tok-comment); user-select: none; }

.copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #94a3b8;
  cursor: pointer;
  transition: color 0.2s, background-color 0.2s;
}

.copy:hover { color: #f8fafc; background: #1e293b; }
.copy[data-copied] { color: #22c55e; }

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin: 56px 0 0;
  padding: 0;
  list-style: none;
}

.stats li { display: grid; }
.stats strong { font: 600 28px var(--font-mono); letter-spacing: -0.03em; }
.stats span { color: var(--muted); font-size: 14px; }

/* Sections */

section { padding: 72px 0; border-top: 1px solid var(--border); }

.section-head { max-width: 680px; margin-bottom: 40px; }

.section-head h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.section-head p { margin: 16px 0 0; color: var(--muted); }

/* Code */

.code {
  margin: 0;
  padding: 20px 22px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--code-bg);
  color: #e2e8f0;
  font-size: 14px;
  line-height: 1.7;
  tab-size: 2;
}

.code .tag { color: var(--tok-tag); }
.code .attr { color: var(--tok-attr); }
.code .str { color: var(--tok-string); }
.code .kw { color: var(--tok-keyword); }
.code .ph { color: var(--tok-placeholder); }
.code .com { color: var(--tok-comment); }

.panel-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 10px;
  color: var(--muted);
  font: 500 13px var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Steps */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.step { display: flex; flex-direction: column; min-width: 0; }

.step h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 19px;
}

.step h3 span { color: var(--accent); font: 600 14px var(--font-mono); }
.step .code { flex: 1; }

/* Live demo */

.live {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 20px;
  margin-top: 20px;
  align-items: start;
}

.preview {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.tiles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tile {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}

.tile .label { color: var(--muted); font-size: 13px; }
.tile .value { display: block; font: 600 28px var(--font-mono); letter-spacing: -0.03em; }
.tile .value small { margin-left: 2px; color: var(--muted); font-size: 14px; font-weight: 400; }
.tile .delta { font: 13px var(--font-mono); }
.tile--up .delta { color: var(--accent); }
.tile--down .delta { color: var(--danger); }
.tile .bar { height: 4px; margin-top: 10px; border-radius: 2px; background: var(--surface-2); overflow: hidden; }
.tile .fill { height: 100%; background: var(--accent); transform-origin: left; transition: transform 0.4s ease; }

.legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.legend i {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Features */

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--border);
  list-style: none;
}

.feature { padding: 28px; background: var(--bg); }

.feature .icon {
  width: 24px;
  height: 24px;
  color: var(--accent);
}

.feature h3 { margin: 16px 0 6px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

/* Playground */

.playground {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
}

.editors { display: grid; gap: 16px; }

.editor textarea {
  display: block;
  width: 100%;
  min-height: 120px;
  padding: 16px 18px;
  resize: vertical;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--code-bg);
  color: #e2e8f0;
  font-size: 14px;
  line-height: 1.7;
  tab-size: 2;
  transition: border-color 0.2s;
}

.editor textarea:focus { border-color: var(--accent); outline: none; }
.editor textarea[aria-invalid="true"] { border-color: var(--danger); }
.editor #template-input { min-height: 230px; }

.hint { color: var(--muted); font: 12px var(--font-sans); text-transform: none; letter-spacing: 0; }

.results { display: grid; gap: 16px; align-content: start; }

.result-preview {
  min-height: 160px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.result-preview .card { max-width: 360px; }

.status {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  min-height: 24px;
  margin: 0;
  color: var(--muted);
  font: 13px var(--font-mono);
}

.status[data-error] { color: var(--danger); }

.result-html { max-height: 280px; white-space: pre-wrap; word-break: break-word; }

/* Styles for the playground's default template. */
.card {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}

.card--admin { border-left-color: var(--accent); }
.card h3 { margin: 0; font-size: 18px; }
.card .role { margin: 0 0 12px; color: var(--muted); font: 13px var(--font-mono); }
.card .body { color: var(--text); font-size: 15px; }
.card footer { display: flex; gap: 8px; margin-top: 14px; }
.card footer:empty { display: none; }
.card button { padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); font: 14px var(--font-sans); cursor: pointer; }

/* API */

.api { display: grid; gap: 0; margin: 0; }

.api-item {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
}

.api-item:first-child { border-top: 0; padding-top: 0; }
.api-item dt code { color: var(--accent); font-size: 15px; font-weight: 600; word-break: break-word; }
.api-item dd { margin: 0; color: var(--muted); }
.api-item dd p { margin: 0 0 8px; }
.api-item dd code { color: var(--text); font-size: 14px; }
.api-item ul { margin: 0; padding-left: 20px; }

/* Footer */

.footer { padding: 40px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 15px; }

.footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer a { text-decoration-color: var(--border); text-underline-offset: 3px; transition: color 0.2s; }
.footer a:hover { color: var(--text); }

/* Responsive */

@media (max-width: 960px) {
  .steps, .features { grid-template-columns: minmax(0, 1fr); }
  .live, .playground { grid-template-columns: minmax(0, 1fr); }
  .api-item { grid-template-columns: minmax(0, 1fr); gap: 8px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .container { padding: 0 16px; }
  .hero { padding: 64px 0 48px; }
  section { padding: 56px 0; }
  .nav-links .label, .nav-optional { display: none; }
  .install { width: 100%; justify-content: space-between; }
  .preview { padding: 16px; }
  .stats { gap: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tile .fill { transition: none; }
}