/* ------------------------------------------------------------
   Pages (rendered identically in main and in every preview)
   ------------------------------------------------------------ */
main { display: block; position: relative; outline: none; }
.fbar-capture { position: absolute; left: 0; right: 0; top: 0; height: var(--bar-h); z-index: 1; }
.page { padding-top: calc(var(--bar-h) + env(safe-area-inset-top, 0px)); }
.wrap { max-width: 1280px; margin-inline: auto; padding-inline: var(--page-gutter); }
.hero {
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; row-gap: 40px;
  align-items: start; padding-block: clamp(40px, 7vh, 88px) 64px;
}
.hero-text { grid-column: 1 / span 5; padding-top: 12px; }
.hero-fig { grid-column: 7 / span 6; min-width: 0; }
.eyebrow { margin: 0; font: 12px/16px var(--font-mono); color: var(--ink-3); letter-spacing: 0em; }
.page h1 {
  margin: 18px 0 20px; font-family: var(--font); font-weight: 400;
  font-size: clamp(40px, 4.5vw, 64px); line-height: 1.02; letter-spacing: -0.022em;
  font-variation-settings: "opsz" 72; text-wrap: balance;
}
.lede { margin: 0; max-width: 42ch; font-size: 17px; line-height: 1.56; color: var(--ink-2); text-wrap: pretty; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.try {
  margin: 28px 0 0; max-width: 40ch; padding-left: 14px; box-shadow: inset 2px 0 0 var(--accent);
  font-size: 13px; line-height: 1.5; color: var(--ink-2);
}
.details {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px;
  border-top: 1px solid var(--line); padding-block: 40px 88px;
}
.details h2 { margin: 0 0 8px; font: 400 20px/1.2 var(--font); font-variation-settings: "opsz" 24; letter-spacing: -0.01em; }
.details p { margin: 0; max-width: 36ch; color: var(--ink-2); font-size: 15px; }
.foot { border-top: 1px solid var(--line); background: var(--fill); }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(5, minmax(0, 1fr)); gap: 24px; padding-block: 48px 40px; }
.foot-brand p { margin: 10px 0 0; color: var(--ink-3); font-size: 13px; max-width: 24ch; }
.foot h3 { margin: 4px 0 12px; font: 12px/16px var(--font-mono); color: var(--ink-3); font-weight: 400; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.foot a { font-size: 13px; color: var(--ink-2); }
.foot a:is(:hover, [data-hover]) { color: var(--ink); }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-block: 18px 28px; border-top: 1px solid var(--line); font: 12px/16px var(--font-mono); color: var(--ink-3); }
@media (max-width: 960px) {
  .hero-text { grid-column: 1 / -1; }
  .hero-fig { grid-column: 1 / -1; }
  .foot-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .hero { padding-block: 32px 48px; }
  .page h1 { font-size: clamp(32px, 10vw, 40px); }
  .lede { font-size: 15px; }
  .details { grid-template-columns: 1fr; gap: 24px; padding-block: 32px 56px; }
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
/* ------------------------------------------------------------
   Figures
   ------------------------------------------------------------ */
.fig { background: var(--raised); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; font-size: 13px; }
.fig-head, .fig-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; font: 12px/16px var(--font-mono); color: var(--ink-3);
}
.fig-head { border-bottom: 1px solid var(--line); }
.fig-foot { border-top: 1px solid var(--line); flex-wrap: wrap; justify-content: flex-start; }
.fig-foot .note { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); }
.pill { display: inline-flex; align-items: center; gap: 7px; padding: 4px 9px; border-radius: 99px; background: var(--fill); box-shadow: inset 0 0 0 1px var(--line); color: var(--ink-2); font: 11px/14px var(--font-mono); white-space: nowrap; }
.pill i { width: 7px; height: 7px; border-radius: 50%; background: var(--c, var(--ink-3)); }
.num { font-variant-numeric: tabular-nums; }
.plan { list-style: none; margin: 0; padding: 6px 0; }
.step { display: grid; grid-template-columns: 16px 20px minmax(0, 1fr) auto 56px; align-items: center; gap: 10px; padding: 11px 16px; }
.step + .step { border-top: 1px solid var(--line-soft); }
.step .g { width: 16px; height: 16px; display: block; }
.step-n { font: 11px var(--font-mono); color: var(--ink-3); text-align: right; }
.step-t { font-size: 13px; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step[data-s="plan"] .step-t { color: var(--ink-2); }
.scope { font: 11px/14px var(--font-mono); color: var(--ink-3); padding: 3px 7px; border-radius: 6px; background: var(--fill); white-space: nowrap; }
.step[data-s="wait"] .scope { background: color-mix(in oklch, var(--warn) 16%, var(--raised)); color: var(--ink-2); }
.step-m { font: 11px var(--font-mono); color: var(--ink-3); text-align: right; font-variant-numeric: tabular-nums; }
.g-run { animation: spin 1.1s linear infinite; transform-origin: 50% 50%; }
.thumb-frame .g-run, .card-thumb .g-run { animation: none; }
@keyframes spin { to { rotate: 360deg; } }
.wf-body { padding: 8px 0 4px; }
.wf-row { display: grid; grid-template-columns: 40% minmax(0, 1fr) 46px; align-items: center; gap: 12px; height: 27px; padding: 0 16px; }
.wf-name { font: 12px/16px var(--font-mono); color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding-left: calc(var(--d) * 14px); }
.wf-row[data-k="run"] .wf-name { color: var(--ink); }
.wf-track {
  position: relative; height: 100%;
  background: linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / calc(100% / 3) 100%;
  box-shadow: inset -1px 0 0 var(--line-soft);
}
.wf-bar { position: absolute; top: 50%; height: 9px; margin-top: -4.5px; border-radius: 4px; background: var(--ink-4); }
.wf-bar.k-model { background: var(--accent); }
.wf-bar.k-run { height: 3px; margin-top: -1.5px; background: var(--ink-3); }
.wf-bar.k-wait { background: repeating-linear-gradient(135deg, color-mix(in oklch, var(--warn) 70%, var(--raised)) 0 3px, color-mix(in oklch, var(--warn) 30%, var(--raised)) 3px 6px); }
.wf-dur { font: 11px var(--font-mono); color: var(--ink-3); text-align: right; font-variant-numeric: tabular-nums; }
.wf-axis { display: grid; grid-template-columns: 40% minmax(0, 1fr) 46px; gap: 12px; padding: 4px 16px 10px; }
.wf-ticks { position: relative; height: 14px; font: 9px/14px var(--font-mono); color: var(--ink-3); }
.wf-ticks i { position: absolute; font-style: normal; white-space: nowrap; transform: translateX(-50%); }
.wf-ticks i:first-child { transform: none; }
.wf-ticks i:last-child { transform: translateX(-100%); }
.legend { display: flex; gap: 14px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 8px; border-radius: 2px; background: var(--c); }
.q-stack { position: relative; padding: 26px 22px 22px; }
.q-card { background: var(--raised); border: 1px solid var(--line); border-radius: 12px; }
.q-back { position: absolute; left: 22px; right: 22px; height: 40px; }
.q-back.b1 { top: 16px; transform: scale(.96); opacity: .7; }
.q-back.b2 { top: 8px; transform: scale(.92); opacity: .4; }
.q-front { position: relative; padding: 16px 18px; box-shadow: 0 14px 30px -22px var(--shadow); }
.q-top { display: flex; justify-content: space-between; font: 11px/14px var(--font-mono); color: var(--ink-3); }
.q-title { margin: 10px 0 6px; font: 400 20px/1.2 var(--font); letter-spacing: -0.01em; }
.q-reason { margin: 0 0 12px; font-size: 13px; color: var(--ink-2); }
.q-reason b { font-weight: 500; color: var(--ink); }
.q-diff { font: 12px/20px var(--font-mono); border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }
.q-diff div { padding: 2px 10px; display: flex; justify-content: space-between; font-variant-numeric: tabular-nums; }
.q-diff .del { background: color-mix(in oklch, var(--bad) 10%, var(--raised)); }
.q-diff .add { background: color-mix(in oklch, var(--ok) 12%, var(--raised)); }
.q-actions { display: flex; align-items: center; gap: 8px; margin-top: 14px; }
.q-actions .who { margin-left: auto; font: 11px var(--font-mono); color: var(--ink-3); }
.code { margin: 0; padding: 16px 18px 18px; font: 12px/20px var(--font-mono); color: var(--ink-2); white-space: pre; overflow: hidden; }
.code .c { color: var(--ink-3); }
.code .k { color: var(--ink); }
.code .s { color: var(--accent); }
.code .n { color: color-mix(in oklch, var(--ok) 70%, var(--ink)); }
.code .m { color: var(--ink); font-weight: 500; }
.hm { display: grid; grid-template-columns: 116px repeat(12, minmax(0, 1fr)); gap: 3px; padding: 14px 16px 6px; }
.hm-tok { height: 58px; display: flex; align-items: flex-end; justify-content: center; font: 11px/1 var(--font-mono); color: var(--ink-3); white-space: pre; }
.hm-tok span { writing-mode: vertical-rl; transform: rotate(180deg); }
.hm-lab { display: flex; align-items: center; gap: 6px; font: 11px/1 var(--font-mono); color: var(--ink-3); white-space: nowrap; overflow: hidden; }
.hm-lab b { font-weight: 400; color: var(--ink-2); }
.hm-cell { aspect-ratio: 1 / 1; border-radius: 4px; background: color-mix(in oklch, var(--accent) calc(var(--v) * 100%), var(--fill)); }
.hm-row-on .hm-lab b { color: var(--accent); }
.hm-row-on.hm-cell, .hm-cell.on { box-shadow: 0 0 0 1px color-mix(in oklch, var(--accent) 50%, transparent); }
.hm-note { padding: 8px 16px 14px; font-size: 12px; color: var(--ink-2); }
.ev { padding: 10px 16px 4px; }
.ev-row { display: grid; grid-template-columns: 34% minmax(0, 1fr) 52px 44px; align-items: center; gap: 12px; height: 34px; }
.ev-name { font-size: 13px; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ev-track { position: relative; height: 10px; background: linear-gradient(90deg, var(--line-soft) 1px, transparent 1px) 0 0 / 25% 100%; box-shadow: inset -1px 0 0 var(--line-soft); }
.ev-bar { position: absolute; left: 0; top: 0; bottom: 0; border-radius: 0 4px 4px 0; background: var(--accent); }
.ev-prev { position: absolute; top: -3px; bottom: -3px; width: 2px; margin-left: -1px; background: var(--ink); border-radius: 2px; }
.ev-val { font: 12px var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }
.ev-d { font: 11px var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; color: color-mix(in oklch, var(--ok) 62%, var(--ink)); }
.ev-d.neg { color: color-mix(in oklch, var(--bad) 75%, var(--ink)); }
.ev-axis { display: grid; grid-template-columns: 34% minmax(0, 1fr) 52px 44px; gap: 12px; padding: 2px 16px 12px; }
.ev-axis .wf-ticks { height: 14px; }
.rows { list-style: none; margin: 0; padding: 4px 0; }
.row { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto; align-items: baseline; gap: 16px; padding: 13px 16px; }
.row + .row { border-top: 1px solid var(--line-soft); }
.row-a { font: 11px/16px var(--font-mono); color: var(--ink-3); font-variant-numeric: tabular-nums; white-space: nowrap; }
.row-b { font-size: 13px; color: var(--ink); }
.rows.serif .row-b { font-family: var(--font); font-size: 17px; line-height: 1.25; letter-spacing: -0.005em; }
.row-c { font: 11px/16px var(--font-mono); color: var(--ink-3); white-space: nowrap; }
.rules { list-style: none; margin: 0; padding: 4px 0; counter-reset: r; }
.rule { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; gap: 12px; align-items: baseline; padding: 14px 16px; counter-increment: r; }
.rule + .rule { border-top: 1px solid var(--line-soft); }
.rule::before { content: counter(r); font: 12px var(--font-mono); color: var(--accent); }
.rule p { margin: 0; font: 400 17px/1.3 var(--font); letter-spacing: -0.005em; }
.rule .row-c { align-self: center; }
.docs { display: grid; grid-template-columns: 152px minmax(0, 1fr); min-height: 300px; }
.docs-nav { border-right: 1px solid var(--line); padding: 14px 12px; font-size: 12px; }
.docs-nav h4 { margin: 12px 0 6px; font: 11px/14px var(--font-mono); color: var(--ink-3); font-weight: 400; }
.docs-nav h4:first-child { margin-top: 0; }
.docs-nav div { padding: 4px 8px; border-radius: 6px; color: var(--ink-2); }
.docs-nav .on { background: var(--fill); color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.docs-main { padding: 16px 20px; }
.docs-main h3 { margin: 6px 0 8px; font: 400 24px/1.1 var(--font); letter-spacing: -0.015em; }
.docs-main p { margin: 0 0 12px; font-size: 13px; color: var(--ink-2); max-width: 52ch; }
.docs-main pre { margin: 0; padding: 10px 12px; border-radius: 8px; background: var(--fill); border: 1px solid var(--line); font: 11px/18px var(--font-mono); color: var(--ink-2); }
.term { background: var(--term-bg); color: var(--term-ink); border-color: transparent; }
.term .fig-head { color: color-mix(in oklch, var(--term-ink) 55%, var(--term-bg)); border-bottom-color: color-mix(in oklch, var(--term-ink) 12%, var(--term-bg)); }
.term .dots { display: inline-flex; gap: 6px; }
.term .dots i { width: 9px; height: 9px; border-radius: 50%; background: color-mix(in oklch, var(--term-ink) 22%, var(--term-bg)); }
.term pre { margin: 0; padding: 14px 18px 18px; font: 12px/21px var(--font-mono); white-space: pre; overflow: hidden; }
.term .p { color: color-mix(in oklch, var(--term-ink) 50%, var(--term-bg)); }
.term .o { color: color-mix(in oklch, var(--term-ink) 70%, var(--term-bg)); }
.term .w { color: var(--yellow-200); }
.term .a { color: var(--blue-250); }
.up { padding: 10px 16px 14px; display: grid; gap: 14px; }
.up-head { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 6px; }
.up-head span:last-child { font: 12px var(--font-mono); color: var(--ink-2); font-variant-numeric: tabular-nums; }
.days { display: grid; grid-template-columns: repeat(90, minmax(0, 1fr)); gap: 1.5px; height: 26px; }
.days i { border-radius: 2px; background: color-mix(in oklch, var(--ok) 72%, var(--raised)); }
.days i.w { background: var(--warn); }
.up-axis { display: flex; justify-content: space-between; font: 9px var(--font-mono); color: var(--ink-3); }
.statement { padding: 28px 26px 24px; }
.statement blockquote { margin: 0; font: 400 clamp(22px, 2.2vw, 30px)/1.22 var(--f-display); letter-spacing: -0.012em; text-wrap: balance; }
.people { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); }
.people b { display: block; font-weight: 500; font-size: 13px; }
.people span { font-size: 12px; color: var(--ink-3); }
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.plan-col { padding: 18px 16px 18px; display: flex; flex-direction: column; gap: 4px; }
.plan-col + .plan-col { border-left: 1px solid var(--line); }
.plan-col.hi { background: var(--accent-wash); }
.plan-name { font: 12px var(--font-mono); color: var(--ink-3); }
.plan-price { font: 400 32px/1.1 var(--font); letter-spacing: -0.02em; margin-top: 8px; font-variant-numeric: tabular-nums; }
.plan-unit { font-size: 12px; color: var(--ink-2); }
.plan-col ul { list-style: none; margin: 14px 0 16px; padding: 0; display: grid; gap: 7px; font-size: 12px; color: var(--ink-2); }
.plan-col li::before { content: "✓"; color: var(--accent); margin-right: 7px; font-size: 11px; }
.plan-col .btn { margin-top: auto; align-self: flex-start; }
.form { padding: 22px 22px 24px; display: grid; gap: 12px; }
.form label { font-size: 13px; color: var(--ink-2); }
.field { height: 44px; border-radius: 8px; border: 1px solid var(--line); background: var(--paper); display: flex; align-items: center; padding: 0 14px; font-size: 15px; color: var(--ink-3); }
.form input.field { width: 100%; font: inherit; color: var(--ink); }
.form .btn { height: 44px; }
.form small { font-size: 12px; color: var(--ink-3); }
@media (max-width: 760px) {
  .step { grid-template-columns: 16px minmax(0, 1fr) auto; }
  .step-n, .step-m { display: none; }
  .wf-row, .wf-axis { grid-template-columns: 46% minmax(0, 1fr); }
  .wf-dur, .wf-axis > span:last-child { display: none; }
  .hm { grid-template-columns: 84px repeat(12, minmax(0, 1fr)); gap: 2px; }
  .hm-lab { font-size: 9px; }
  .ev-row, .ev-axis { grid-template-columns: 38% minmax(0, 1fr) 48px; }
  .ev-d, .ev-axis > span:last-child { display: none; }
  .row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .docs { grid-template-columns: minmax(0, 1fr); }
  .docs-nav { display: none; }
  .plans { grid-template-columns: 1fr; }
  .plan-col + .plan-col { border-left: 0; border-top: 1px solid var(--line); }
  .people { grid-template-columns: 1fr; }
  .code, .term pre { font-size: 11px; line-height: 18px; }
}
@property --scrolled { syntax: '<number>'; inherits: true; initial-value: 0; }
@property --e { syntax: '<number>'; inherits: true; initial-value: 0; }
html[data-theme]:root {
  --paper: var(--gray-20);
  --raised: var(--gray-10);
  --ink: var(--gray-830);
  --accent: var(--blue-550);
  --ok: var(--aqua-400);
  --warn: var(--yellow-300);
  --bad: var(--red-450);
  --term-bg: var(--gray-820);
  --term-ink: var(--gray-70);
  --shadow: color-mix(in oklch, var(--ink) 20%, transparent);
  --veil: color-mix(in oklch, var(--paper) 76%, transparent);
  --ink-2: color-mix(in oklch, var(--ink) 72%, var(--paper));
  --ink-3: color-mix(in oklch, var(--ink) 58%, var(--paper));
  --ink-4: color-mix(in oklch, var(--ink) 28%, var(--paper));
  --line: color-mix(in oklch, var(--ink) 11%, var(--paper));
  --line-soft: color-mix(in oklch, var(--ink) 6.5%, var(--paper));
  --fill: color-mix(in oklch, var(--ink) 3.5%, var(--paper));
  --accent-wash: color-mix(in oklch, var(--accent) 12%, var(--raised));
  --lv-rest: .66; --lv-min: .57;
  --bar-h: 56px; --gutter: 24px; --page-gutter: clamp(20px, 4vw, 56px);
  --f-ui: var(--font);
  --f-display: var(--font);
  --f-mono: var(--font-mono);
  --ease-out: cubic-bezier(.2, 0, 0, 1);
  --spring: linear(0, 0.0499 3.8%, 0.1593 7.7%, 0.2881 11.5%, 0.4151 15.4%, 0.5297 19.2%, 0.628 23.1%, 0.7096 26.9%, 0.7756 30.8%, 0.8281 34.6%, 0.8693 38.5%, 0.9012 42.3%, 0.9257 46.2%, 0.9444 50%, 0.9585 53.8%, 0.9692 57.7%, 0.9772 61.5%, 0.9832 65.4%, 0.9876 69.2%, 0.9909 73.1%, 0.9933 76.9%, 0.9951 80.8%, 0.9964 84.6%, 0.9974 88.5%, 0.9981 92.3%, 0.9986 96.2%, 1);
  --spring-soft: linear(0, 0.0268 2.9%, 0.0941 5.9%, 0.1855 8.8%, 0.2887 11.8%, 0.3948 14.7%, 0.4974 17.6%, 0.5926 20.6%, 0.6778 23.5%, 0.752 26.5%, 0.815 29.4%, 0.8672 32.4%, 0.9093 35.3%, 0.9426 38.2%, 0.9681 41.2%, 0.9871 44.1%, 1.0006 47.1%, 1.0098 50%, 1.0155 52.9%, 1.0187 55.9%, 1.0199 58.8%, 1.0197 61.8%, 1.0185 64.7%, 1.0168 67.6%, 1.0148 70.6%, 1.0127 73.5%, 1.0107 76.5%, 1.0087 79.4%, 1.0069 82.4%, 1.0054 85.3%, 1.0041 88.2%, 1.003 91.2%, 1.0021 94.1%, 1.0013 97.1%, 1);
  color-scheme: light;
}
html[data-theme="dark"]:root {
  --paper: var(--gray-880); --raised: var(--gray-840); --ink: var(--gray-60); --accent: var(--blue-250);
  --ok: var(--aqua-300); --warn: var(--yellow-200); --bad: var(--red-350); --term-bg: var(--gray-900);
  --shadow: color-mix(in srgb, var(--gray-900) 55%, transparent); --veil: color-mix(in oklch, var(--paper) 72%, transparent); color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { scrollbar-gutter: stable; scroll-padding-top: 96px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font); font-size: 15px; line-height: 1.5; font-optical-sizing: auto; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 8px; }
::selection { background: var(--accent-wash); }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: fixed; z-index: 100; left: 12px; top: -80px; background: var(--ink); color: var(--paper); padding: 10px 14px; border-radius: 8px; font-size: 13px; }
.skip:focus { top: 12px; }
/* =====================================================================
   The bar: one DOM for all five systems
   ===================================================================== */
.bar { position: fixed; inset: 0 0 auto 0; z-index: 50; pointer-events: none; }
@supports (animation-timeline: scroll()) {
  .bar { animation: scrolled linear both; animation-timeline: scroll(root block); animation-range: 0px 40px; }
}
@keyframes scrolled { from { --scrolled: 0; } to { --scrolled: 1; } }
.bar-in {
  position: relative; pointer-events: auto; display: grid; align-items: center; height: var(--bar-h); padding-inline: var(--gutter);
  background: var(--paper); view-transition-name: b-bar;
  box-shadow: 0 1px 0 color-mix(in oklch, var(--line) calc(var(--scrolled) * 100%), transparent);
}
.b-nav, .c3, .b-center { display: contents; }
.menu-a, .menu-b { display: flex; list-style: none; margin: 0; padding: 0; }
.b-mark {
  position: relative; grid-area: mark; justify-self: start; font: 450 20px/1 var(--font); font-variation-settings: "opsz" 24;
  letter-spacing: -0.022em; padding: 6px 6px 9px; margin-left: -6px; border-radius: 8px; white-space: nowrap; view-transition-name: b-mark;
}
.b-mark .ch { color: inherit; }
.menu-a { grid-area: ma; }
.menu-b { grid-area: mb; }
.actions { grid-area: act; justify-self: end; display: flex; align-items: center; gap: 4px; }
.i1 { view-transition-name: b-i1; }
.i2 { view-transition-name: b-i2; }
.i3 { view-transition-name: b-i3; }
.i4 { view-transition-name: b-i4; }
.i5 { view-transition-name: b-i5; }
.b-signin { view-transition-name: b-signin; }
.b-cta { view-transition-name: b-cta; }
.top {
  position: relative; display: inline-flex; align-items: center; height: 40px; padding: 0 12px; border: 0; background: none; cursor: default;
  border-radius: 8px; white-space: nowrap; font-family: var(--font); font-size: 13px; font-weight: 450; letter-spacing: 0em;
  color: color-mix(in oklch, var(--ink) calc(var(--lv, var(--lv-rest)) * 100%), var(--paper));
  font-variation-settings: "GRAD" var(--grad, 0); -webkit-tap-highlight-color: transparent;
}
.top .n { display: none; }
.link { display: inline-flex; align-items: center; height: 40px; padding: 0 12px; border-radius: 8px; font-size: 13px; color: var(--ink-2); white-space: nowrap; }
.link:is(:hover, [data-hover]) { color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 38px; padding: 0 16px; border: 0; border-radius: 8px; cursor: default; font-family: var(--font); font-weight: 500; font-size: 13px; line-height: 1; white-space: nowrap; transition: background-color 140ms; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:is(:hover, [data-hover]) { background: color-mix(in oklch, var(--ink) 84%, var(--paper)); }
.btn-quiet { color: var(--ink); background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.btn-quiet:is(:hover, [data-hover]) { background: var(--fill); }
.btn.sm { height: 30px; padding: 0 11px; font-size: 13px; border-radius: 8px; }
.bar .actions .btn { height: 32px; padding: 0 13px; }
.cta-short { display: none; }
.menu-toggle { display: none !important; }
.b-crumb, .b-query, .b-path { display: none; font: 12px/16px var(--font-mono); color: var(--ink-3); white-space: nowrap; }
.b-crumb { align-items: center; gap: 8px; view-transition-name: b-crumb; }
.b-crumb i { font-style: normal; color: var(--ink-4); }
.b-crumb b { font-weight: 400; color: var(--ink); }
.b-query { align-items: baseline; color: var(--ink); view-transition-name: b-query; }
.b-query .caret { display: inline-block; width: 1.5px; height: 15px; margin: 0 1px; background: var(--accent); transform: translateY(3px); }
.b-query .ghost { color: var(--ink-4); }
.b-query .par { color: var(--ink-3); margin-left: 8px; }
.isub, .onpage { display: none; }
.tittle { position: absolute; left: 0; top: 0; z-index: 3; display: none; background: var(--ink); pointer-events: none; -webkit-mask-size: 100% 100%; mask-size: 100% 100%; will-change: transform; }
.scale { position: absolute; left: 0; bottom: 0; width: 100%; height: 14px; pointer-events: none; display: none; }
.outline { position: absolute; left: 0; right: 0; bottom: 0; height: 12px; display: none; --p: 0; pointer-events: auto; }
.outline::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px; transform-origin: left center; transform: scaleX(var(--p)); background: color-mix(in oklch, var(--ink) 55%, var(--paper)); }
.otick { position: absolute; bottom: 0; width: 13px; height: 12px; margin-left: -6px; border-radius: 4px; }
.otick::before { content: ""; position: absolute; left: 6px; bottom: 0; width: 1px; height: 5px; background: var(--ink-4); transition: height 200ms, background-color 200ms; }
.otick.read::before { background: var(--ink-3); }
.otick.on::before { height: 8px; width: 2px; left: 5.5px; background: var(--ink); }
.otick:is(:hover, [data-hover])::before, .otick:focus-visible::before { height: 10px; background: var(--ink); }
.otip { position: fixed; z-index: 70; padding: 5px 9px; border-radius: 8px; background: var(--ink); color: var(--paper); font: 12px/16px var(--font-mono); white-space: nowrap; pointer-events: none; opacity: 0; transform: translate(-50%, -4px); transition: opacity 140ms, transform 240ms var(--ease-out); }
.otip[data-on] { opacity: 1; transform: translate(-50%, 0); }
@supports (corner-shape: squircle) {
  .btn, .top, .link, .b-mark { corner-shape: squircle; border-radius: 12px; }
  .btn.sm { border-radius: 12px; }
}
/* panel, scrim and the previews all systems share */
.panel { position: absolute; left: 0; right: 0; top: 0; pointer-events: none; }
.panel > * { pointer-events: auto; }
.scrim { position: fixed; inset: 0; z-index: 40; background: var(--veil); opacity: 0; pointer-events: none; transition: opacity 260ms var(--ease-out); }
html[data-menu] .scrim { opacity: 1; pointer-events: auto; }
.thumb { position: relative; overflow: hidden; background: var(--paper); flex: none; }
.thumb-frame { position: absolute; left: 0; top: 0; transform-origin: 0 0; pointer-events: none; overflow: hidden; background: var(--paper); }
.thumb-frame .g-run { animation: none; }
.win { position: relative; overflow: hidden; border-radius: 8px; background: var(--line); box-shadow: 0 0 0 1px var(--line), 0 26px 52px -30px var(--shadow); cursor: default; }
@supports (corner-shape: squircle) {
  .win { corner-shape: squircle; border-radius: 12px; }
}
.cap { display: flex; justify-content: space-between; gap: 16px; margin-top: 10px; font: 12px/16px var(--font-mono); color: var(--ink-3); }
.cap .path { color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cap .host { color: var(--ink-3); }
/* =====================================================================
   2  INDEX: a table of contents that stays, with the page's own map
   ===================================================================== */
body[data-sys="index"] .bar { inset: 0 auto 0 0; width: 216px; }
body[data-sys="index"] .bar-in { height: 100%; display: flex; flex-direction: column; align-items: stretch; padding: 20px 20px 24px 24px; box-shadow: 1px 0 0 var(--line); overflow-y: auto; scrollbar-width: none; }
body[data-sys="index"] .b-mark { align-self: flex-start; margin: 0 0 28px -6px; font-size: 24px; }
body[data-sys="index"] .b-nav { display: flex; flex-direction: column; }
body[data-sys="index"] .menu-a, body[data-sys="index"] .menu-b { flex-direction: column; }
body[data-sys="index"] .c3 { display: contents; }
body[data-sys="index"] .menu-a > li, body[data-sys="index"] .menu-b > li { display: block; }
body[data-sys="index"] .top { width: 100%; height: 30px; padding: 0; justify-content: space-between; }
body[data-sys="index"] .top .n { display: inline; font: 11px var(--font-mono); color: var(--ink-4); }
body[data-sys="index"] .isub { display: grid; overflow: hidden; grid-template-rows: 0fr; transition: grid-template-rows 360ms var(--spring); }
body[data-sys="index"] li[data-x] .isub { grid-template-rows: 1fr; }
.isub > ul { min-height: 0; list-style: none; margin: 0; padding: 0 0 0 13px; box-shadow: inset 1px 0 0 var(--line); margin-left: 1px; }
.isub > ul > li:last-child { padding-bottom: 8px; }
.isub :is(a, .ln) { display: block; padding: 3px 0; font-size: 13px; color: var(--ink-3); position: relative; }
.isub :is(a, .ln):is(:hover, [data-hover]) { color: var(--ink); }
.isub :is(a, .ln)[aria-current="page"] { color: var(--ink); font-variation-settings: "GRAD" 60; }
.isub :is(a, .ln)[aria-current="page"]::before { content: ""; position: absolute; left: -14px; top: 50%; width: 8px; height: 1px; background: var(--ink); }
.isub :is(a, .ln).dim, .top.dim { opacity: .28; }
.isub :is(a, .ln).hit { color: var(--ink); }
body[data-sys="index"] .actions { position: fixed; top: 12px; right: 20px; }
body[data-sys="index"] .onpage { display: block; margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); position: relative; }
.onpage p { margin: 0 0 8px; font: 11px/16px var(--font-mono); color: var(--ink-3); }
.onpage ol { list-style: none; margin: 0; padding: 0 0 0 12px; position: relative; }
.onpage :is(a, .ln) { display: block; padding: 3px 0; font-size: 12px; line-height: 1.35; color: var(--ink-3); }
.onpage :is(a, .ln).on { color: var(--ink); }
.onpage .rail { position: absolute; left: 0; top: 0; width: 1px; bottom: 0; background: var(--line); }
.onpage .mark { position: absolute; left: -0.5px; top: 0; width: 2px; height: 18px; background: var(--ink); border-radius: 2px; transition: transform 360ms var(--spring), height 360ms var(--spring); }
body[data-sys="index"] .b-query { display: none; margin: -14px 0 14px; }
body[data-sys="index"] .bar[data-typing] .b-query { display: inline-flex; }
.icard { position: fixed; z-index: 45; left: 236px; top: 0; width: 380px; opacity: 0; visibility: hidden; transform: translateX(-6px); transition: opacity 140ms, transform 240ms var(--ease-out), visibility 0s 240ms; pointer-events: none; }
.icard[data-on] { opacity: 1; visibility: visible; transform: none; transition: opacity 200ms var(--ease-out), transform 420ms var(--spring-soft), top 380ms var(--spring); pointer-events: auto; }
.icard .cap { margin-top: 8px; }
body[data-sys="index"] .page { padding-left: 216px; padding-top: 8px; }
/* =====================================================================
   3  INSTRUMENT: the bar is part of the grid, the edge is a scale
   ===================================================================== */
.b-path .host { color: var(--ink-3); }
.b-path b { font-weight: 400; color: var(--ink); }
/* =====================================================================
   4  QUIET: a capsule that opens when you reach for it
   ===================================================================== */
.q-list { display: grid; align-content: start; gap: 2px; }
.q-list p { margin: 0 0 8px; font: 11px/16px var(--font-mono); color: var(--ink-3); }
.q-list a { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 7px 10px; margin: 0 -10px; border-radius: 8px; font: 400 20px/1.2 var(--font); letter-spacing: -0.01em; color: var(--ink-3); }
.q-list a small { font: 11px var(--font-mono); color: var(--ink-4); }
.q-list a.sel { color: var(--ink); background: var(--fill); }
/* =====================================================================
   Mobile: every system keeps its idea on a phone
   ===================================================================== */
body[data-mobile] .bar { inset: 0 0 auto 0 !important; width: auto !important; filter: none !important; }
body[data-mobile] .bar-in { max-width: none !important; width: auto !important; margin: 0 !important; height: 56px !important; border-radius: 0 !important; clip-path: none !important; display: grid !important; grid-template-columns: 1fr auto 1fr !important; grid-template-areas: "left mark act" !important; padding: 0 12px !important; box-shadow: 0 1px 0 var(--line) !important; background: var(--paper) !important; overflow: visible !important; }
body[data-mobile] .bar-in::before, body[data-mobile] .bar-in::after { display: none !important; }
body[data-mobile] .menu-a, body[data-mobile] .menu-b, body[data-mobile] .b-signin, body[data-mobile] .b-crumb, body[data-mobile] .b-query, body[data-mobile] .b-path, body[data-mobile] .onpage, body[data-mobile] .scale, body[data-mobile] .outline, body[data-mobile] .tittle { display: none !important; }
body[data-mobile] .b-nav, body[data-mobile] .c3, body[data-mobile] .b-center { display: contents !important; }
body[data-mobile] .b-mark { grid-area: mark !important; justify-self: center !important; writing-mode: horizontal-tb !important; rotate: none !important; margin: 0 !important; font-size: 20px !important; }
body[data-mobile] .actions { grid-area: act !important; position: static !important; flex-direction: row !important; margin: 0 !important; justify-self: end !important; }
body[data-mobile] .b-cta { writing-mode: horizontal-tb !important; rotate: none !important; height: 32px !important; width: auto !important; padding: 0 12px !important; background: var(--ink) !important; color: var(--paper) !important; text-decoration: none !important; }
body[data-mobile] .cta-long { display: none !important; }
body[data-mobile] .cta-short { display: inline !important; }
body[data-mobile] .menu-toggle { display: inline-flex !important; grid-area: left; justify-self: start; }
body[data-mobile] .page { padding: 56px 0 0 !important; }
.m-dock { display: none; }
.m-dock { position: fixed; z-index: 52; left: 50%; bottom: calc(14px + env(safe-area-inset-bottom, 0px)); translate: -50% 0; align-items: center; gap: 4px; padding: 5px; border-radius: 12px; background: var(--raised); box-shadow: 0 0 0 1px var(--line), 0 16px 34px -20px var(--shadow); max-width: calc(100% - 24px); overflow-x: auto; scrollbar-width: none; }
.m-dock button { flex: none; height: 38px; padding: 0 12px; border: 0; background: none; border-radius: 12px; font-size: 13px; color: var(--ink-2); cursor: default; }
.m-dock button.on { background: var(--ink); color: var(--paper); }
.sheet { position: fixed; z-index: 55; left: 0; right: 0; top: 56px; bottom: 0; background: var(--paper); display: flex; flex-direction: column; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity 160ms, transform 240ms var(--ease-out), visibility 0s 240ms; overflow: hidden; }
.sheet[data-on] { opacity: 1; visibility: visible; transform: none; transition: opacity 240ms var(--ease-out), transform 480ms var(--spring-soft); }
.sh-tabs { flex: none; display: flex; overflow-x: auto; scrollbar-width: none; padding: 4px 6px 0; -webkit-mask-image: linear-gradient(90deg, var(--gray-900) calc(100% - 32px), transparent); mask-image: linear-gradient(90deg, var(--gray-900) calc(100% - 32px), transparent); }
.sh-tabs button { flex: none; height: 44px; padding: 0 10px; border: 0; background: none; font-size: 15px; color: var(--ink-3); cursor: default; }
.sh-tabs button[aria-selected="true"] { color: var(--ink); font-variation-settings: "GRAD" 60; }
.sh-body { flex: 1; min-height: 0; overflow-y: auto; }
.deck { display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 14px calc((100% - var(--cw)) / 2) 8px; }
.deck .card { flex: 0 0 var(--cw); scroll-snap-align: center; display: grid; gap: 10px; }
.deck .card .win { border-radius: 12px; }
@supports (animation-timeline: view()) {
  .deck .card { animation: attend linear both; animation-timeline: view(inline); }
}
@keyframes attend { 0%, 26% { opacity: .5; scale: .92; } 50% { opacity: 1; scale: 1; } 74%, 100% { opacity: .5; scale: .92; } }
.deck .card b { font-weight: 450; font-size: 15px; }
.deck .card small { display: block; font: 11px var(--font-mono); color: var(--ink-3); }
.sh-list { padding: 8px 20px 24px; }
.sh-list h3 { margin: 18px 0 6px; font: 11px/16px var(--font-mono); color: var(--ink-3); font-weight: 400; }
.sh-list a { display: flex; justify-content: space-between; align-items: baseline; padding: 9px 0; border-bottom: 1px solid var(--line-soft); font: 400 20px/1.2 var(--font); color: var(--ink-2); }
.sh-list a small { font: 11px var(--font-mono); color: var(--ink-3); }
.sh-list a[aria-current="page"] { color: var(--ink); }
.sh-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); margin: 12px 16px 20px; border-radius: 12px; overflow: hidden; box-shadow: 0 0 0 1px var(--line); }
.sh-grid a { display: grid; gap: 4px; padding: 14px 12px; background: var(--paper); }
.sh-grid b { font: 400 20px/1.15 var(--font); }
.sh-grid span { font: 11px/15px var(--font-mono); color: var(--ink-3); }
.sh-grid h3 { grid-column: 1 / -1; margin: 0; padding: 10px 12px 6px; background: var(--fill); font: 11px/16px var(--font-mono); color: var(--ink-3); font-weight: 400; }
.sh-actions { flex: none; display: flex; gap: 8px; padding: 10px 16px calc(14px + env(safe-area-inset-bottom, 0px)); border-top: 1px solid var(--line); }
.sh-actions .btn { flex: 1; height: 44px; }
/* =====================================================================
   View transitions: page handoff grows under the bar; system switches morph
   ===================================================================== */
::view-transition-group(*) { animation-duration: 560ms; animation-timing-function: var(--spring); }
::view-transition-old(*), ::view-transition-new(*) { animation-duration: 240ms; }
@keyframes vt-out { to { opacity: 0; } }
@keyframes vt-in { from { opacity: 0; } }
@keyframes vt-hold { 0%, 10% { opacity: 1; } 30%, 100% { opacity: 0; } }
@keyframes vt-reveal { 0% { opacity: 0; } 20%, 100% { opacity: 1; } }
html[data-vt]::view-transition-group(*) { z-index: 2; }
html[data-vt]::view-transition-group(root) { z-index: 0; }
html[data-vt="handoff"]::view-transition-group(handoff) { z-index: 1; animation-duration: 660ms; }
html[data-vt="handoff"]::view-transition-old(handoff) { animation: vt-hold 660ms linear both; }
html[data-vt="handoff"]::view-transition-new(handoff) { animation: vt-reveal 660ms linear both; }
html[data-vt="handoff"]::view-transition-old(root) { animation: vt-out 300ms var(--ease-out) both; }
html[data-vt="handoff"]::view-transition-new(root) { animation: none; }
html[data-vt="handoff"]::view-transition-old(b-panel) { animation: vt-out 180ms var(--ease-out) both; }
html[data-vt="fade"]::view-transition-old(root) { animation: vt-out 170ms var(--ease-out) both; }
html[data-vt="fade"]::view-transition-new(root) { animation: vt-in 260ms 70ms var(--ease-out) both; }
.panel { view-transition-name: b-panel; }
/* =====================================================================
   Page, and the notes panel
   ===================================================================== */
main { display: block; position: relative; outline: none; }
@media (prefers-reduced-motion: reduce) {
  .icard, .icard[data-on] { transform: none !important; }
  .deck .card { animation: none; }
}
@media (forced-colors: active) {
  .top, .isub :is(a, .ln) { color: LinkText; }
  .win { border: 1px solid CanvasText; }
}
/* =====================================================================
   Additions for the systems prototype (shared components)
   ===================================================================== */
@property --half { syntax: '<length>'; inherits: true; initial-value: 64px; }
/* Pages: detail rows stacked, so every section has its own place on the scroll */
.details { display: block; padding-block: 8px 72px; }
.details > div { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: 24px; padding-block: 44px; border-bottom: 1px solid var(--line-soft); }
.details > div:last-child { border-bottom: 0; }
.details h2 { grid-column: 1 / span 5; font-size: 32px; line-height: 1.1; letter-spacing: -0.015em; }
.details p { grid-column: 7 / span 6; font-size: 17px; line-height: 1.56; max-width: 44ch; }
@media (max-width: 760px) {
  .details > div { display: block; padding-block: 26px; }
  .details h2 { font-size: 24px; margin-bottom: 8px; }
  .details p { font-size: 15px; }
}
/* Preview strips: one component, horizontal or vertical */
.strip { position: absolute; left: 0; top: 0; display: flex; gap: 16px; will-change: transform; }
.strip.y { flex-direction: column; }
.win { flex: none; }
.m { color: var(--ink); box-shadow: inset 0 -1.5px 0 color-mix(in oklch, var(--accent) 70%, transparent); }
/* The bar as it appears inside a preview and inside the handoff capture */
.fbar { animation: none !important; --scrolled: 0; pointer-events: none !important; }
.fbar, .fbar * { view-transition-name: none !important; pointer-events: none !important; transition: none !important; }
.fbar .scale, .fbar .outline, .fbar .b-query { display: none !important; }
.fbar-capture { height: auto; bottom: auto; transform: translateZ(0); pointer-events: none; }
html[data-instant] .panel *, html[data-instant] .icard, html[data-instant] .sheet, html[data-instant] .scrim { transition: none !important; }
/* The bar always paints over its own panel */
.bar-in { z-index: 1; }
/* Location and crumbs */
.b-crumb .sub { color: var(--ink-3); }
.b-crumb .sub:empty { display: none; }
.b-path .hash { color: var(--ink-3); }
.b-path .hash b { color: var(--accent); font-weight: 400; }
/* On this page: list with a sliding marker (Index) */
.op-list { position: relative; }
.op-list ol { padding-left: 12px; }
/* Outline, vertical on the Spine */
.otip[data-side="r"] { transform: translate(-4px, -50%); }
.otip[data-side="r"][data-on] { transform: translate(0, -50%); }
/* Quiet: the closed width follows its content, with a spring */
.q-prev { position: relative; }
.q-prev .cap { margin-top: 8px; }
/* Index: preview card beside the column */
.icard { width: 408px; padding: 12px 14px 12px; border-radius: 12px; background: var(--raised); box-shadow: 0 0 0 1px var(--line), 0 30px 60px -30px var(--shadow); }
@supports (corner-shape: squircle) {
  .icard { corner-shape: squircle; border-radius: 12px; }
}
.icard .win { border-radius: 8px; }
.icard .sec { display: block; margin: 0 0 8px; font: 11px/16px var(--font-mono); color: var(--ink-3); }
/* Mobile: sheet header with its own search field */
.sh-head { flex: none; display: flex; gap: 8px; align-items: center; padding: 12px 16px 4px; }
.sh-q { flex: 1; min-width: 0; height: 42px; border: 0; border-radius: 12px; box-shadow: inset 0 0 0 1px var(--line); background: var(--fill); padding: 0 12px; font: 15px var(--font); color: var(--ink); }
.sh-q::placeholder { color: var(--ink-3); }
.sh-q:focus { outline: 2px solid var(--accent); outline-offset: 0; }
.sh-close { flex: none; }
body[data-sys="index"] .sh-close { display: none; }
.m-dock { z-index: 57; }
.sh-list .here { margin: 4px 0 2px; }
.sh-list .here a { font: 15px/1.3 var(--font); padding: 7px 0; }
.sh-list .here a.on { color: var(--ink); }
.sh-list .here a:not(.on) { color: var(--ink-3); }
.sh-empty { padding: 18px 20px; font: 13px var(--font-mono); color: var(--ink-3); }
.sh-sec { padding: 12px 20px 0; font: 400 32px/1.05 var(--font); letter-spacing: -0.02em; }
/* Small states */
.sh-grid .fill { background: var(--paper); }
.q-list .q-empty { font: 12px var(--font-mono); color: var(--ink-3); }
.icard .cap .host { color: var(--ink-3); }
html:has(> body[data-sys="index"]) { scroll-padding-top: 32px; }
body[data-mobile] .b-mark { align-self: center !important; }
.fig-foot .note { padding: 14px 18px 16px; max-height: 42vh; overflow-y: auto; }
.sh-sec, .sh-empty, .in-res .empty { margin-block: 1em; }