:root {
  --bg: #14181c;
  --panel: #1b2126;
  --panel-border: #2a3138;
  --text: #e7e5dd;
  --muted: #7b838a;
  --on-device: #f0b429;
  --cloud: #20c997;
  --cloud-pro: #38d9c9;
  --ollama: #9775fa;
  --accent: var(--on-device);
  --diff-add: #3fb950;
  --diff-remove: #f85149;

  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --serif: "Source Serif 4", Georgia, serif;

  --measure: 640px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.75rem;
  --space-4: 3rem;
  --space-5: 5rem;
}

* { box-sizing: border-box; }

html {
  background: var(--bg);
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  color: var(--on-device);
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* nav / footer */

.nav,
.foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  font-family: var(--mono);
}

.navlinks {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
}

.nav {
  padding: var(--space-3) 0 var(--space-4);
}

.foot {
  padding: var(--space-4) 0 var(--space-5);
  color: var(--muted);
  border-top: 1px solid var(--panel-border);
  margin-top: var(--space-5);
}

.wordmark {
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.navlink {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  white-space: nowrap;
  transition: color 0.15s ease;
}

.navlink:hover {
  color: var(--text);
}

.ext {
  display: inline-block;
  transform: translateY(-0.05em);
}

/* hero */

.hero h1 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-3);
  max-width: 16ch;
}

.dek {
  max-width: 52ch;
  color: var(--text);
  font-size: 1.15rem;
  margin: 0 0 var(--space-4);
}

.terminal {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: var(--space-5);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--panel-border);
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--panel-border);
}

.terminal-title {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 auto;
}

.terminal-body {
  font-family: var(--mono);
  font-size: 0.92rem;
  line-height: 1.75;
  padding: 1.25rem 1.1rem;
}

.banner {
  font-weight: 600;
  margin-bottom: 0.15rem;
  background-image: linear-gradient(90deg, var(--on-device), var(--cloud-pro));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.terminal-subtitle,
.terminal-status {
  color: var(--muted);
  font-size: 0.82rem;
}

.terminal-subtitle { margin-bottom: 1rem; }
.terminal-status { margin-top: 0.5rem; }

.terminal-convo {
  min-height: 5rem;
  white-space: pre-wrap;
}

.terminal-convo .you { color: var(--muted); }
.terminal-convo .fm { color: var(--accent); transition: color 0.2s ease; }

.terminal-convo .cursor {
  display: inline-block;
  width: 0.55em;
  height: 1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
  transition: background 0.2s ease;
}

@keyframes blink {
  50% { opacity: 0; }
}

.toggle-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0 1.1rem 1.1rem;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.toggle .swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
}

.toggle[data-model="on-device"] .swatch { background: var(--on-device); }
.toggle[data-model="cloud-pro"] .swatch { background: var(--cloud-pro); }

.toggle.active {
  color: var(--text);
  border-color: currentColor;
}

.toggle[data-model="on-device"].active { color: var(--on-device); }
.toggle[data-model="cloud-pro"].active { color: var(--cloud-pro); }

/* content blocks */

.block {
  max-width: var(--measure);
  padding-bottom: var(--space-5);
}

.block h2 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 var(--space-2);
}

.block p {
  max-width: 56ch;
  margin: 0 0 var(--space-2);
}

.block p:last-child {
  margin-bottom: 0;
}

.block ul {
  max-width: 56ch;
  margin: 0 0 var(--space-2);
  padding-left: 1.2em;
}

.block li {
  margin-bottom: 0.5rem;
}

.block li:last-child {
  margin-bottom: 0;
}

.aside {
  color: var(--muted);
  font-style: italic;
}

.aside code {
  color: var(--muted);
  font-style: normal;
}

.aside a {
  color: var(--text);
}

.code {
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.9;
  background: var(--panel);
  border-left: 3px solid var(--on-device);
  padding: 1rem 1.2rem;
  margin: 0 0 var(--space-2);
  overflow-x: auto;
}

.code .cmd { color: var(--text); }
.code .comment { color: var(--muted); }
.code .fm-line { color: var(--on-device); }
.code .ctx { color: var(--text); }
.code .add { color: var(--diff-add); }
.code .remove { color: var(--diff-remove); }

.keys {
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.key-row {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  align-items: baseline;
}

.key-row dt {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--on-device);
}

.key-row dd {
  margin: 0;
  color: var(--text);
}

.key-row dd .aside {
  display: block;
  margin-top: 0.3rem;
}

/* model badges (docs) */

.model-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.model-dot.on-device { background: var(--on-device); }
.model-dot.cloud { background: var(--cloud); }
.model-dot.cloud-pro { background: var(--cloud-pro); }
.model-dot.ollama { background: var(--ollama); }

/* docs table of contents */

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.3rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 1.1rem 0;
  margin-bottom: var(--space-4);
  border-top: 1px solid var(--panel-border);
  border-bottom: 1px solid var(--panel-border);
}

.toc a {
  color: var(--muted);
  text-decoration: none;
}

.toc a:hover {
  color: var(--text);
}

/* docs tables */

.doctable {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 0 0 var(--space-2);
}

.doctable th,
.doctable td {
  text-align: left;
  padding: 0.5rem 0.9rem 0.5rem 0;
  border-bottom: 1px solid var(--panel-border);
  vertical-align: top;
}

.doctable th {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.doctable code {
  white-space: nowrap;
}

.block h3 {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--muted);
  margin: var(--space-3) 0 var(--space-2);
}

@media (max-width: 560px) {
  .nav { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
  .foot { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .key-row { grid-template-columns: 1fr; gap: 0.15rem; }
  .code { font-size: 0.8rem; }

  .doctable {
    table-layout: fixed;
    width: 100%;
    font-size: 0.88rem;
  }
  .doctable code {
    overflow-wrap: anywhere;
    word-break: break-word;
    white-space: normal;
  }
  .doctable th:first-child,
  .doctable td:first-child {
    width: 34%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}