/* learn.xyzios.com -- the Xyzios Guide.

   The palette is the app's own (app/static/os.html :root and its light
   block), so a page and the screenshot on it are one visual system: light
   is the blue-on-grey the app defaults to, dark is midnight with gold.
   Every colour is a token on bare :root (light) and is redefined, never
   first defined, for dark -- following the device unless the reader picked
   one with the theme button, which stamps data-theme on the root element.

   Inter, as in the app; no serif (the app does not use one). */

/* @font-face:site -- stripped from the Artifact build, which loads Inter from Google Fonts */
@font-face{font-family:"Inter";src:url("fonts/inter-var.woff2") format("woff2");font-weight:100 900;font-display:swap}
/* /@font-face */

:root{
  color-scheme:light;
  --ground:#EEF1F5;            /* the app's light page */
  --surface:#FFFFFF;           /* its cards */
  --surface-2:#F6F8FA;
  --ink:#1B1C1E;
  --ink-2:#41464C;
  --ink-3:#5B616B;
  --line:#C9CFD8;
  --hair:#E3E7EC;
  --hover:rgba(27,28,30,.05);
  --accent:#0040B9;            /* the app's light accent */
  --link:#0040B9;
  --chip:#E4E9F0;
  --code-bg:#E7EAEE;
  --pin:#0040B9;
  --pin-ink:#FFFFFF;
  --pin-ring:#FFFFFF;
  --pin-glow:rgba(0,64,185,.28);
  --bezel:#1B1C1E;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 12px 32px -16px rgba(16,24,40,.28);
  --shot-light:block;
  --shot-dark:none;
  --sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --top-h:60px;
  --max:1360px;
  --gutter:clamp(16px,4vw,40px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --ground:#0b0f18; --surface:#10141f; --surface-2:#141a28;
    --ink:#F7F8F9; --ink-2:rgba(247,248,249,.74); --ink-3:rgba(247,248,249,.62);
    --line:rgba(205,179,132,.24); --hair:rgba(255,255,255,.08); --hover:rgba(255,255,255,.05);
    --accent:#CDB384; --link:#CDB384; --chip:#1c2433; --code-bg:#131A29;
    --pin:#CDB384; --pin-ink:#0b0f18; --pin-ring:#0b0f18; --pin-glow:rgba(205,179,132,.30);
    --bezel:#232b3b;
    --shadow:0 1px 0 rgba(255,255,255,.03),0 18px 44px -22px rgba(0,0,0,.85);
    --shot-light:none; --shot-dark:block;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ground:#0b0f18; --surface:#10141f; --surface-2:#141a28;
  --ink:#F7F8F9; --ink-2:rgba(247,248,249,.74); --ink-3:rgba(247,248,249,.62);
  --line:rgba(205,179,132,.24); --hair:rgba(255,255,255,.08); --hover:rgba(255,255,255,.05);
  --accent:#CDB384; --link:#CDB384; --chip:#1c2433; --code-bg:#131A29;
  --pin:#CDB384; --pin-ink:#0b0f18; --pin-ring:#0b0f18; --pin-glow:rgba(205,179,132,.30);
  --bezel:#232b3b;
  --shadow:0 1px 0 rgba(255,255,255,.03),0 18px 44px -22px rgba(0,0,0,.85);
  --shot-light:none; --shot-dark:block;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--top-h) + 24px)}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:1rem;line-height:1.6;
  font-optical-sizing:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration-thickness:1px;text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:50;background:var(--surface);color:var(--ink);padding:8px 12px;border-radius:8px}
.wm-light{display:var(--shot-light)}
.wm-dark{display:var(--shot-dark)}

/* ---------------------------------------------------------------- top bar */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;
  background:color-mix(in srgb,var(--ground) 88%,transparent);
  -webkit-backdrop-filter:saturate(1.3) blur(14px);backdrop-filter:saturate(1.3) blur(14px);
  border-bottom:1px solid var(--hair)}
.top-in{display:flex;align-items:center;gap:18px;height:var(--top-h)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);flex:0 0 auto}
.brand img{height:28px;width:auto}
.brand-sub{font-size:.9375rem;font-weight:600;color:var(--ink-2);padding-left:11px;border-left:1px solid var(--line);line-height:1.2}
.topnav{display:flex;gap:2px}
.topnav a{color:var(--ink-2);text-decoration:none;font-size:.9375rem;font-weight:500;padding:8px 11px;border-radius:8px}
.topnav a:hover{color:var(--ink);background:var(--hover)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.theme-btn{appearance:none;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--ink-2);cursor:pointer;padding:0}
.theme-btn:hover{color:var(--ink);background:var(--hover)}
.theme-btn svg{width:17px;height:17px}
.open-app{font-size:.875rem;font-weight:600;padding:8px 15px;border-radius:999px;background:var(--ink);color:var(--ground);text-decoration:none;white-space:nowrap}
.open-app:hover{text-decoration:none;opacity:.88}
/* On a phone the section links drop to their own row under the brand and
   scroll sideways, the way the app's tab bars do, rather than vanishing. */
@media (max-width:860px){
  .top-in{flex-wrap:wrap;height:auto;row-gap:0;padding-top:10px}
  .topnav{order:3;flex-basis:100%;overflow-x:auto;scrollbar-width:none;margin:4px calc(-1 * var(--gutter)) 0;padding:0 var(--gutter) 4px}
  .topnav::-webkit-scrollbar{display:none}
  .topnav a{flex:0 0 auto;padding:8px 10px}
  html{scroll-padding-top:120px}
}
@media (max-width:380px){.brand-sub{display:none}}

/* ---------------------------------------------------------------- page head */
.page{padding-block:28px 72px}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;font-size:.875rem;color:var(--ink-3)}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{color:var(--ink);text-decoration:underline}
.page-head{max-width:48rem;margin-top:18px}
.eyebrow{margin:0;font-size:.75rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--accent)}
h1{margin:.3em 0 .32em;font-size:clamp(2.1rem,1.45rem + 2.3vw,3rem);line-height:1.04;letter-spacing:-.03em;font-weight:720;text-wrap:balance}
.lede{margin:0;font-size:clamp(1.1rem,1rem + .45vw,1.3rem);line-height:1.5;color:var(--ink-2);text-wrap:pretty}
.facts{display:flex;flex-wrap:wrap;gap:14px 36px;margin:24px 0 0;padding-top:16px;border-top:1px solid var(--hair)}
.facts div{display:flex;flex-direction:column;gap:5px;min-width:0}
.facts dt{font-size:.6875rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.facts dd{margin:0;font-size:.9375rem;line-height:1.4}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-size:.8125rem;font-weight:550;padding:2px 10px;border-radius:999px;background:var(--chip);color:var(--ink);white-space:nowrap}

/* ---------------------------------------------------------------- board layout */
.board{display:grid;gap:40px;margin-top:40px}
.board > .figure{order:-1}
@media (min-width:1100px){
  .board{grid-template-columns:minmax(0,35rem) minmax(0,1fr);gap:56px;align-items:start}
  .board > .figure{order:2;position:sticky;top:calc(env(safe-area-inset-top,0px) + var(--top-h) + 20px)}
  .board > .prose{order:1}
}

/* ---------------------------------------------------------------- prose */
.prose{max-width:40rem;font-size:1.0625rem;line-height:1.68}
.prose > section + section{margin-top:48px}
.prose h2{margin:0 0 .75em;font-size:1.45rem;line-height:1.22;letter-spacing:-.016em;font-weight:680;text-wrap:balance}
.prose h3{margin:1.7em 0 .45em;font-size:1.0625rem;line-height:1.4;font-weight:650}
.prose p{margin:0 0 1em;text-wrap:pretty}
.prose ul{margin:0 0 1.2em;padding-left:1.25em}
.prose li{margin:.5em 0;padding-left:.15em}
.prose li::marker{color:var(--ink-3)}
.prose strong{font-weight:640}
.prose code{font-size:.88em;background:var(--code-bg);padding:.1em .38em;border-radius:5px}
.prose hr{border:0;border-top:1px solid var(--hair);margin:2em 0}
.table-wrap{overflow-x:auto;margin:0 0 1.2em}
.table-wrap table{border-collapse:collapse;font-size:.9375rem;min-width:100%}
.table-wrap th,.table-wrap td{text-align:left;padding:8px 12px;border-bottom:1px solid var(--hair)}
.steps ol{list-style:none;counter-reset:step;margin:0 0 1.2em;padding:0}
.steps ol li{counter-increment:step;position:relative;margin:0;padding:13px 0 13px 42px;border-top:1px solid var(--hair)}
.steps ol li:last-child{border-bottom:1px solid var(--hair)}
.steps ol li::before{content:counter(step);position:absolute;left:0;top:13px;width:26px;text-align:right;
  font-weight:650;color:var(--ink-3);font-variant-numeric:tabular-nums}
.qa{padding:18px 0;border-top:1px solid var(--hair)}
.qa:last-of-type{border-bottom:1px solid var(--hair)}
.qa h3{margin:0 0 .35em}
.qa p{margin:0;color:var(--ink-2)}

/* the numbers in the text: same token as the pins on the picture */
.cnum{display:inline-grid;place-items:center;min-width:1.5em;height:1.5em;padding:0 .32em;margin-right:.42em;border-radius:999px;
  background:var(--pin);color:var(--pin-ink);font-size:.74em;font-weight:720;line-height:1;text-decoration:none;
  vertical-align:.16em;font-variant-numeric:tabular-nums;box-shadow:0 0 0 2px var(--ground);transition:box-shadow .15s}
.cnum:hover,.cnum.is-active{text-decoration:none;box-shadow:0 0 0 2px var(--ground),0 0 0 5px var(--pin-glow)}

/* ---------------------------------------------------------------- the picture */
.figure{margin:0;min-width:0}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--hair);margin-bottom:16px}
.tabs button{appearance:none;background:none;border:0;border-bottom:2px solid transparent;margin-bottom:-1px;min-height:44px;
  padding:7px 12px;font:inherit;font-size:.875rem;font-weight:600;color:var(--ink-3);cursor:pointer}
.tabs button:hover{color:var(--ink)}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent)}
.tabs .tab-note{margin-left:auto;align-self:center;font-size:.8125rem;color:var(--ink-3)}
.frame{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.chrome{display:flex;align-items:center;justify-content:center;height:30px;background:var(--surface-2);border-bottom:1px solid var(--hair)}
.chrome span{font-size:.75rem;color:var(--ink-3);padding:1px 16px;border-radius:999px;background:var(--ground)}
/* The picture scrolls inside its frame, so a long board never pushes the
   words a screen away: beside the text on a wide screen (and the page does
   not scroll with it), above it on a narrow one (where it hands the scroll
   back to the page at either end). */
.scroller{position:relative;scrollbar-width:thin;max-height:72svh;overflow:auto}
.phone .frame{width:min(100%,360px);margin-inline:auto;border:10px solid var(--bezel);border-radius:40px;background:var(--bezel)}
.phone .scroller{border-radius:30px}
@media (min-width:1100px){
  .scroller{max-height:calc(100dvh - var(--top-h) - 150px);overscroll-behavior:contain}
}
.canvas{position:relative}
.canvas img{width:100%;height:auto;cursor:zoom-in}
.canvas.t-light{display:var(--shot-light)}
.canvas.t-dark{display:var(--shot-dark)}
/* Centred 7px outside the card's top-left corner (--x/--y), so it reaches
   only into the card's padding, never its label; max() keeps it on the picture. */
.pin{position:absolute;z-index:2;left:max(14px,calc(var(--x) - 7px));top:max(14px,calc(var(--y) - 7px));transform:translate(-50%,-50%);
  display:grid;place-items:center;width:26px;height:26px;border-radius:50%;
  background:var(--pin);color:var(--pin-ink);font-size:13px;font-weight:760;line-height:1;text-decoration:none;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 2px var(--pin-ring),0 3px 10px rgba(0,0,0,.35);transition:transform .15s}
.pin:hover,.pin.is-active{text-decoration:none;transform:translate(-50%,-50%) scale(1.18)}
.hl{position:absolute;z-index:1;border-radius:10px;pointer-events:none;opacity:0;transition:opacity .2s;
  box-shadow:0 0 0 2px var(--pin),0 0 0 7px var(--pin-glow)}
.hl.is-active{opacity:1}
.figure figcaption{margin-top:14px;font-size:.8125rem;line-height:1.5;color:var(--ink-3);text-wrap:pretty}
@media (max-width:560px){.pin{width:22px;height:22px;font-size:11.5px}}

/* full-size view */
.zoom{padding:0;border:0;background:transparent;max-width:none;max-height:none;width:100vw;height:100dvh;margin:0}
.zoom::backdrop{background:rgba(6,9,15,.82)}
.zoom-in{position:absolute;inset:0;overflow:auto;padding:56px 24px 32px}
.zoom-in .canvas{margin-inline:auto;border-radius:10px;overflow:hidden;box-shadow:0 20px 60px -20px rgba(0,0,0,.8)}
.zoom-in .canvas img{cursor:zoom-out}
.zoom-close{position:fixed;top:calc(env(safe-area-inset-top,0px) + 12px);right:16px;z-index:5;appearance:none;border:0;border-radius:999px;
  padding:9px 16px;font:inherit;font-size:.875rem;font-weight:600;background:#F7F8F9;color:#0b0f18;cursor:pointer}

/* ---------------------------------------------------------------- pager, footer */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:72px}
.pager a{display:flex;flex-direction:column;gap:3px;padding:15px 18px;border:1px solid var(--line);border-radius:12px;color:var(--ink);text-decoration:none}
.pager a:hover{background:var(--hover)}
.pager .next{grid-column:2;text-align:right}
.pager small{font-size:.6875rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.pager span{font-weight:650}
.foot{border-top:1px solid var(--hair);padding-block:28px 44px;font-size:.875rem;color:var(--ink-3)}
.foot-in{display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between}
.foot a{color:var(--ink-2)}
.foot p{margin:0;max-width:46rem}

/* ---------------------------------------------------------------- index */
.hero{max-width:46rem;padding-block:48px 8px}
.hero h1{font-size:clamp(2.3rem,1.5rem + 3vw,3.5rem)}
.groups{display:grid;gap:44px;margin-top:40px}
.group h2{margin:0 0 4px;font-size:.75rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,420px),1fr));column-gap:40px}
.rows li{border-bottom:1px solid var(--hair)}
.rows a{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 14px;padding:14px 4px;color:var(--ink);text-decoration:none}
.rows a:hover b{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}
.rows b{font-weight:650}
.rows span{grid-column:1;font-size:.9375rem;line-height:1.45;color:var(--ink-2)}
.rows em{grid-row:1;grid-column:2;font-style:normal;font-size:.6875rem;font-weight:650;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);align-self:center}
.no-shot{max-width:40rem;margin:0 0 8px;padding:14px 18px;border:1px dashed var(--line);border-radius:12px;color:var(--ink-2);font-size:.9375rem}
.no-shot p{margin:0}

/* ---------------------------------------------------------------- index: paths, days */
.paths{list-style:none;margin:28px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:12px}
.paths a,.days a{display:flex;flex-direction:column;gap:4px;height:100%;padding:16px 18px;background:var(--surface);border:1px solid var(--hair);
  border-radius:14px;color:var(--ink);text-decoration:none;transition:border-color .15s}
.paths a:hover,.days a:hover{border-color:var(--accent)}
.paths small,.days small{font-size:.6875rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--accent)}
.paths b,.days b{font-size:1.0625rem;font-weight:680;line-height:1.3}
.paths span,.days span{font-size:.9375rem;line-height:1.45;color:var(--ink-2)}
.days{list-style:none;margin:12px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:10px}
.prose .days{margin:24px 0 32px}
.prose .days li,.prose .rows li{margin:0;padding:0}
.group-intro{margin:6px 0 14px;color:var(--ink-2);font-size:.9375rem;max-width:40rem}
.group-more{margin:12px 0 0;font-size:.9375rem;font-weight:600}
.group-more a{text-decoration:none}
.rows.compact{grid-template-columns:1fr;margin:12px 0 0}
.rows.compact a{padding:10px 2px}
.rows.compact span{font-size:.875rem}

/* ---------------------------------------------------------------- diagrams */
.diagram{margin:28px 0;padding:22px;background:var(--surface);border:1px solid var(--hair);border-radius:16px;font-size:.9375rem;line-height:1.5}
.dg-flow{list-style:none;margin:0;padding:0;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:26px;counter-reset:dg}
.dg-node{position:relative;counter-increment:dg;display:flex;flex-direction:column;gap:5px;padding:14px 14px 15px;border:1px solid var(--line);border-radius:12px;background:var(--ground)}
.dg-node::before{content:counter(dg);display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--ink);color:var(--ground);
  font-size:.75rem;font-weight:720;font-variant-numeric:tabular-nums}
.dg-node:not(:last-child)::after{content:"";position:absolute;top:50%;right:-20px;width:14px;height:14px;
  border-top:2px solid var(--accent);border-right:2px solid var(--accent);transform:translateY(-50%) rotate(45deg)}
.dg-node b{font-weight:680;font-size:.9375rem;line-height:1.3}
.dg-node span{color:var(--ink-2);font-size:.875rem}
.dg-branch{margin-top:18px;padding-top:14px;border-top:1px dashed var(--line)}
.dg-branch-label,.dg-h{display:block;margin:0 0 10px;font-size:.6875rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.dg-outcomes,.dg-bands,.dg-chips{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.dg-outcomes{grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr))}
.dg-outcomes li,.dg-bands li{display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;background:var(--ground);border-left:3px solid var(--line)}
.dg-outcomes li.good{border-left-color:var(--accent)}
.dg-outcomes b,.dg-bands b{font-weight:680}
.dg-outcomes span,.dg-bands span{color:var(--ink-2);font-size:.875rem}
.dg-bands li.warn{border-left-color:var(--pin)}
.dg-bands li.bad{border-left-color:var(--ink)}
.dg-cols{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:22px;align-items:start}
.dg-chips li{padding:7px 11px;border-radius:999px;background:var(--chip);font-size:.875rem;width:fit-content;max-width:100%}
.dg-mid{text-align:center;padding:14px 10px;border:1px solid var(--line);border-radius:12px;background:var(--ground)}
.dg-big{margin:0;font-size:2.4rem;font-weight:760;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1.1}
.dg-sub{margin:6px 0 0;color:var(--ink-3);font-size:.8125rem}
.dg-note{margin:16px 0 0;color:var(--ink-2);font-size:.875rem}
.dg-bar{position:relative;height:14px;margin:6px 0 18px;border-radius:999px;background:var(--chip);overflow:visible}
.dg-fill{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:var(--accent)}
.dg-tick{position:absolute;top:-6px;bottom:-6px;width:3px;margin-left:-1.5px;border-radius:2px;background:var(--ink)}
.dg-legend{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr));gap:12px;margin:0}
.dg-legend div{display:flex;flex-direction:column;gap:3px}
.dg-legend dt{font-size:.75rem;font-weight:650;color:var(--ink-3)}
.dg-legend dd{margin:0;font-weight:680;font-variant-numeric:tabular-nums}
.dg-legend dd span{display:block;font-weight:400;font-size:.8125rem;color:var(--ink-2)}
.dg-rates{margin-top:18px;padding-top:14px;border-top:1px dashed var(--line)}
.dg-rates dd{font-weight:400;color:var(--ink-2);font-size:.875rem}
@media (max-width:760px){
  .dg-flow{grid-auto-flow:row;grid-auto-columns:auto;gap:22px}
  .dg-node:not(:last-child)::after{top:auto;bottom:-17px;right:auto;left:22px;transform:rotate(135deg)}
  .dg-cols{grid-template-columns:1fr}
}

/* Lists that are components, not prose: the article's list rules (indent,
   spacing, markers) are more specific than a component's own class, so
   they are undone here, inside the article only. */
.prose .diagram ul,.prose .diagram ol,.prose .rows,.prose .days{margin-left:0;padding-left:0}
.prose .diagram li{margin:0}
.prose .diagram li::marker{content:none}
.prose .diagram .dg-node{padding:14px 14px 15px}
.prose .diagram .dg-outcomes li,.prose .diagram .dg-bands li{padding:10px 12px}
.prose .diagram .dg-chips li{padding:7px 11px}

/* A page with no board picture is one wide column: the words keep their
   reading measure, a diagram or a list of cards may use the width. */
@media (min-width:1100px){.board.single{grid-template-columns:minmax(0,62rem)}}
.board.single .prose{max-width:none}
.board.single .prose > section > :is(p,h2,h3,.qa,ul:not(.rows),ol:not(.days)){max-width:40rem}

/* A long page with no picture lists its sections: above the words on a
   narrow screen, beside them (and staying put) on a wide one. */
.toc{font-size:.875rem;line-height:1.45}
.toc-h{margin:0 0 8px;font-size:.6875rem;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}
.toc ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 18px}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover{color:var(--ink);text-decoration:underline}
.board.single.has-toc > .toc{order:-1;padding-bottom:16px;border-bottom:1px solid var(--hair)}
@media (min-width:1100px){
  .board.single.has-toc{grid-template-columns:minmax(0,44rem) minmax(0,15rem);gap:56px;align-items:start}
  .board.single.has-toc > .toc{order:2;position:sticky;top:calc(env(safe-area-inset-top,0px) + var(--top-h) + 20px);
    padding:0 0 0 20px;border-bottom:0;border-left:1px solid var(--hair)}
  .board.single.has-toc > .toc ol{display:grid;gap:9px}
}

/* ---------------------------------------------------------------- search */
.search{padding:0;border:0;background:transparent;max-width:none;max-height:none;width:100vw;height:100dvh;margin:0}
.search::backdrop{background:rgba(6,9,15,.55);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.search-in{width:min(640px,calc(100vw - 32px));margin:calc(env(safe-area-inset-top,0px) + 72px) auto 0;background:var(--surface);color:var(--ink);
  border:1px solid var(--line);border-radius:16px;box-shadow:0 30px 80px -30px rgba(0,0,0,.6);overflow:hidden}
.search-in input{width:100%;border:0;border-bottom:1px solid var(--hair);background:transparent;color:var(--ink);font:inherit;font-size:1.0625rem;padding:16px 18px;outline:none}
.search-results{list-style:none;margin:0;padding:6px;max-height:min(60dvh,520px);overflow:auto}
.search-results a{display:grid;gap:1px;padding:10px 12px;border-radius:10px;color:var(--ink);text-decoration:none}
.search-results a.is-sel,.search-results a:hover{background:var(--hover)}
.search-results small{font-size:.6875rem;font-weight:650;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.search-results b{font-weight:650}
.search-results span{font-size:.875rem;color:var(--ink-2);line-height:1.4}
.search-empty{padding:14px 12px;color:var(--ink-3);font-size:.9375rem}
.search-foot{margin:0;padding:8px 16px 10px;border-top:1px solid var(--hair);font-size:.75rem;color:var(--ink-3)}