/* ShirOren.AI School. Tokens first: replace this block to rebrand; templates do not change. */
:root{
  --font-sans:'Heebo','Arial',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,Consolas,monospace;
  --bg:#fffdf8; --surface:#ffffff; --surface-2:#f7f3e9; --ink:#17211c; --muted:#5f6d65; --line:#17211c1f; --line-strong:#17211c40;
  --link:#1d5a49; --link-hover:#0f3d31; --focus:#df755f;
  --yellow:#d8a927; --coral:#df755f; --mint:#75b9a5;
  --yellow-soft:#f6ebc6; --coral-soft:#f8e0d9; --mint-soft:#dcefe9;
  --ok:#1d6b46; --warn:#8a5a00; --err:#a3281b; --info:#1f5d8a;
  --radius:12px; --shell:1120px; --measure:66ch; --gutter:20px;
  --fs-body:1rem; --lh-body:1.7;
  --h1:clamp(1.6rem,1.25rem + 1.5vw,2.2rem); --h2:clamp(1.25rem,1.1rem + .7vw,1.5rem); --h3:1.12rem; --h4:1rem;
  --header-h:58px;
}
@font-face{font-family:'Heebo';font-weight:100 900;font-display:swap;src:url(../fonts/heebo-hebrew.woff2) format('woff2');unicode-range:U+0307-0308,U+0590-05FF,U+200C-2010,U+20AA,U+25CC,U+FB1D-FB4F}
@font-face{font-family:'Heebo';font-weight:100 900;font-display:swap;src:url(../fonts/heebo-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-weight:400;font-display:swap;src:url(../fonts/plexmono-latin.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 52px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-sans);font-size:var(--fs-body);line-height:var(--lh-body);-webkit-text-size-adjust:100%;overflow-wrap:break-word}
img,svg{max-width:100%}
a{color:var(--link);text-underline-offset:3px}
a:hover{color:var(--link-hover)}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;inset-inline-start:12px;top:-60px;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;z-index:100}
.skip:focus{top:12px}
.wrap{max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.muted{color:var(--muted)}
h1,h2,h3,h4{line-height:1.3;font-weight:700;margin:0}
h1{font-size:var(--h1);line-height:1.22;letter-spacing:-.01em}
.eyebrow{margin:0 0 .4rem;font-size:.82rem;font-weight:500;color:var(--muted);letter-spacing:.02em}
.lead{font-size:1.06rem;line-height:1.6;color:#33403a;max-width:var(--measure);margin:.7rem 0 0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fffdf8f5;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;gap:14px;min-height:var(--header-h);padding-block:6px}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.95rem;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand-mark{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--yellow),var(--coral))}
.brand-sub{font-weight:400;color:var(--muted)}
.search{position:relative;flex:1 1 240px;max-width:460px;min-width:0}
.search input,.hero-search input{width:100%;font:inherit;font-size:.95rem;padding:8px 14px;padding-inline-end:40px;border:1.5px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink)}
.search input:focus,.hero-search input:focus{border-color:var(--ink);outline:none;box-shadow:0 0 0 3px #df755f55}
.kbd{position:absolute;inset-inline-end:12px;top:50%;transform:translateY(-50%);font:500 .75rem var(--font-mono);color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:0 6px;background:var(--surface-2)}
/* saved */
.saved{position:relative}
.saved-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 12px;font-size:.9rem;cursor:pointer;color:var(--ink)}
.saved-btn:hover{border-color:var(--ink)}
.saved-label{font-weight:500}
@media(max-width:600px){.saved-label{display:none}}
.toast{position:fixed;inset-inline:var(--gutter);bottom:20px;margin-inline:auto;max-width:420px;background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;font-size:.92rem;z-index:100;box-shadow:0 12px 32px #17211c40}
.toast[hidden]{display:none}
.saved-btn.has{background:var(--yellow-soft);border-color:var(--yellow)}
.saved-panel{position:absolute;inset-inline-start:0;top:calc(100% + 8px);width:340px;max-width:calc(100vw - 2*var(--gutter));background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 16px 44px #17211c26;padding:12px;z-index:70}
.saved-panel h2{font-size:.95rem;margin:0 0 8px}
.saved-panel ul{list-style:none;margin:0;padding:0;max-height:50vh;overflow:auto}
.saved-panel li{display:flex;align-items:center;gap:6px;border-top:1px solid var(--line);padding:8px 0}
.saved-panel li a{flex:1;text-decoration:none;color:var(--ink);font-size:.92rem;line-height:1.4}
.saved-panel li a:hover{text-decoration:underline}
.saved-panel .rm{border:0;background:none;color:var(--muted);cursor:pointer;font-size:1.1rem;padding:2px 6px}
.saved-panel .note{margin:8px 0 0;font-size:.8rem;color:var(--muted)}
/* nav + dropdowns */
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link,.nav-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 10px;border-radius:8px;color:var(--ink);text-decoration:none;font-weight:500;font-size:.92rem;border:0;background:none;cursor:pointer;white-space:nowrap}
.nav-link:hover,.nav-btn:hover,.nav-btn[aria-expanded="true"]{background:var(--surface-2)}
.caret{width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translate(-1px,-2px);transition:transform .15s}
.nav-btn[aria-expanded="true"] .caret{transform:rotate(-135deg) translate(-1px,-2px)}
.nav-item{position:relative}
.menu{position:absolute;inset-inline-start:0;top:calc(100% + 4px);min-width:250px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 16px 44px #17211c26;padding:6px;z-index:70}
.menu ul{list-style:none;margin:0;padding:0}
.menu li a{display:flex;justify-content:space-between;gap:16px;padding:8px 12px;border-radius:8px;color:var(--ink);text-decoration:none;font-size:.92rem;line-height:1.4}
.menu li a:hover{background:var(--surface-2)}
.menu-n{color:var(--muted);font-size:.82rem}
.menu-all{display:block;margin-top:4px;padding:8px 12px;border-top:1px solid var(--line);font-size:.88rem;font-weight:500;text-decoration:none}
.nav-toggle{display:none;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:6px 14px;font-size:.9rem;cursor:pointer}
@media(max-width:1040px){
  .header-row{flex-wrap:wrap;gap:8px 10px}
  .brand{order:1;margin-inline-end:auto}
  .saved{order:2}
  .nav-toggle{display:inline-block;order:3}
  .search{order:4;flex:1 0 100%;max-width:none}
  .kbd{display:none}
  .main-nav{display:none;order:5;position:absolute;top:100%;inset-inline:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px var(--gutter) 14px;max-height:calc(100vh - var(--header-h) - 60px);overflow:auto;flex-direction:column;align-items:stretch;gap:0;box-shadow:0 20px 40px #17211c1f}
  .main-nav.open{display:flex}
  .nav-link,.nav-btn{width:100%;justify-content:space-between;padding:12px 6px;border-bottom:1px solid var(--line);border-radius:0;font-size:1rem}
  .menu{position:static;box-shadow:none;border:0;padding:0 0 6px;min-width:0;background:transparent}
  .menu li a{padding:10px 14px}
  .saved-panel{position:fixed;inset-inline:var(--gutter);top:auto;margin-top:8px;width:auto;max-width:none}
}

/* search results */
.results{position:absolute;inset-inline:0;top:calc(100% + 8px);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 18px 50px #17211c26;max-height:min(70vh,520px);overflow:auto;z-index:80;padding:8px}
.results .chips{margin:4px 4px 8px;padding:0;border:0;display:flex;gap:6px;flex-wrap:wrap}
.res{display:block;padding:9px 12px;border-radius:10px;text-decoration:none;color:var(--ink)}
.res[aria-selected="true"],.res:hover{background:var(--surface-2)}
.res-title{display:flex;gap:8px;align-items:center;font-weight:700;font-size:.95rem}
.res-ex{display:block;color:var(--muted);font-size:.88rem;line-height:1.5;margin-top:2px}
.res mark{background:var(--yellow-soft);color:inherit;border-radius:3px;padding:0 2px}
.res-empty{padding:12px}.res-empty p{margin:.2rem 0;font-size:.92rem}
.res-note{padding:6px 12px;font-size:.8rem;color:var(--muted)}

/* ---------- breadcrumbs, badges ---------- */
.crumbs{padding-top:14px;font-size:.85rem;color:var(--muted)}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 0}
.crumbs li+li::before{content:'‹';direction:ltr;unicode-bidi:isolate;display:inline-block;margin-inline:2px 8px;font-size:1.05em;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs [aria-current]{color:var(--ink)}
.badge{display:inline-block;font-size:.74rem;font-weight:500;line-height:1;padding:4px 8px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink);white-space:nowrap}
.badge-type{background:var(--mint-soft)}.badge-level{background:var(--yellow-soft)}
.badge-needs-review{background:var(--coral-soft)}.badge-legacy{background:#eee}

/* ---------- course / path bar ---------- */
.series{background:var(--surface-2);border-bottom:1px solid var(--line)}
.series-row{display:flex;align-items:center;gap:8px 16px;padding-block:9px;flex-wrap:wrap;font-size:.9rem}
.series-name{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);text-decoration:none}
.series-name:hover{text-decoration:underline}
.series-kind{display:inline-block;font-size:.74rem;font-weight:700;padding:3px 8px;border-radius:6px;background:var(--yellow-soft);border:1px solid var(--yellow);color:var(--ink);margin-inline-end:8px}
.series-name .series-kind{margin:0}
.series-pos{color:var(--muted)}
.series-bar{flex:0 0 140px;height:6px;border-radius:6px;background:var(--line);overflow:hidden}
.series-bar>span{display:block;height:100%;background:var(--coral);border-radius:6px}
@media(max-width:600px){.series-bar{flex:1 0 100%}}

/* ---------- hero + home ---------- */
.hero{padding:clamp(28px,5vw,56px) 0 clamp(22px,3vw,36px);background:radial-gradient(900px 300px at 85% -10%,var(--yellow-soft),transparent 70%),radial-gradient(700px 280px at 0% 10%,var(--coral-soft),transparent 70%)}
.hero h1{max-width:22ch;font-size:clamp(1.75rem,1.3rem + 2vw,2.5rem)}
.hero-search{max-width:600px;margin-top:1.2rem}
.hero-search input{padding:13px 20px;font-size:1.02rem;box-shadow:0 6px 24px #17211c12}
.suggest{margin:.9rem 0 0;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.continue{margin-top:1rem;padding:10px 14px;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);font-size:.95rem;max-width:600px}
.continue[hidden]{display:none}
.block{padding-block:clamp(22px,3vw,34px)}
.block h2{font-size:var(--h2);margin-bottom:.8rem}
.doors{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.door{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.door:hover{border-color:var(--ink);box-shadow:0 8px 24px #17211c12}
.door-title{font-size:1.02rem;font-weight:700}.door-desc{color:var(--muted);font-size:.9rem;line-height:1.5}.door-count{margin-top:auto;padding-top:6px;font-size:.82rem;font-weight:500;color:var(--link)}
.btn{display:inline-block;padding:9px 18px;border-radius:999px;background:var(--ink);color:#fff;text-decoration:none;font-weight:500;font-size:.95rem}
.btn:hover{background:#000;color:#fff}
.path-inline{margin:.6rem 0;padding-inline-start:1.3rem;line-height:1.9}

/* chips */
.chip{font:inherit;font-size:.85rem;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}
.chip:hover{border-color:var(--ink)}
.chip[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
fieldset.chips{border:0;margin:0 0 12px;padding:0;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
fieldset.chips legend{float:inline-start;margin-inline-end:8px;font-size:.85rem;color:var(--muted);padding:0}
.filters{margin:1rem 0 .3rem}

/* ---------- cards + lists ---------- */
.list-page{padding-block:clamp(22px,4vw,44px) 56px}
.list-page h1{margin-bottom:.2rem}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;margin-top:1.1rem}
.cards-compact{grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.card-wrap{position:relative;display:flex}
.card-wrap[hidden]{display:none}
.card-wrap>.card{flex:1}
.card{display:flex;flex-direction:column;gap:6px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);text-decoration:none;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:var(--ink);box-shadow:0 8px 24px #17211c12}
.card[hidden]{display:none}
.card-meta{display:flex;gap:5px;flex-wrap:wrap;padding-inline-end:34px}
.card-title{font-weight:700;font-size:1rem;line-height:1.35}
.card-desc{color:#43504a;font-size:.9rem;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;font-size:.8rem;color:var(--muted)}
.path-steps{list-style:none;padding:0;margin:1.1rem 0 0;display:grid;gap:10px;max-width:760px}
.path-steps .card{position:relative;padding-inline-start:56px}
.step-n{position:absolute;inset-inline-start:14px;top:13px;width:28px;height:28px;border-radius:50%;background:var(--yellow-soft);border:1px solid var(--yellow);display:grid;place-items:center;font-weight:700;font-size:.9rem}
.path-steps li.done .step-n{background:var(--mint-soft);border-color:var(--mint)}
.path-steps li.done .step-n::after{content:'✓'}
.path-steps li.done .step-n{font-size:0}
.path-steps li.done .step-n::after{font-size:.95rem}

/* star / save */
.star{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;cursor:pointer;line-height:1}
.star:hover{border-color:var(--ink)}
.star[aria-pressed="true"]{background:var(--yellow-soft);border-color:var(--yellow)}
.star-glyph{font-size:1.05rem}
.star-lg{padding:7px 14px;font-size:.9rem}
.star-mini{position:absolute;top:10px;inset-inline-end:10px;width:30px;height:30px;justify-content:center;padding:0}
.article-actions{margin-top:12px}
.star-wrap{position:relative;display:inline-block}
.tip{position:absolute;inset-inline-start:0;top:calc(100% + 8px);width:max-content;max-width:260px;background:var(--ink);color:#fff;font-size:.82rem;line-height:1.45;padding:8px 12px;border-radius:8px;opacity:0;pointer-events:none;transition:opacity .15s;z-index:30}
.star-wrap:hover .tip,.star-wrap:focus-within .tip{opacity:1}

/* ---------- article ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:40px;padding-block:22px 36px;align-items:start}
@media(max-width:1000px){.article-layout{grid-template-columns:minmax(0,1fr)}.side{display:none}}
.article{min-width:0;animation:rise .3s ease-out both}
@keyframes rise{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.article-head{padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:6px}
.article-meta{list-style:none;padding:0;margin:.9rem 0 0;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;color:var(--muted);font-size:.85rem}
.aliases{margin:.7rem 0 0;color:var(--muted);font-size:.9rem}
.prose{max-width:var(--measure)}
.prose p,.prose li{max-width:var(--measure)}
.prose h2{font-size:var(--h2);margin:2.2rem 0 .7rem;padding-top:1rem;border-top:1px solid var(--line)}
.prose h2:first-child{border-top:0;padding-top:0;margin-top:1.4rem}
.prose h3{font-size:var(--h3);margin:1.7rem 0 .5rem}
.prose h4{font-size:var(--h4);margin:1.4rem 0 .4rem;color:#2c3a33}
.prose h5{font-size:.95rem;margin:1.1rem 0 .3rem}
.prose .anchor{margin-inline-start:.4rem;opacity:0;text-decoration:none;color:var(--muted);font-weight:400}
.prose :is(h2,h3,h4):hover .anchor,.prose .anchor:focus{opacity:1}
.prose ul,.prose ol{padding-inline-start:1.4rem}
.prose li{margin:.25rem 0}
.prose blockquote{margin:1.1rem 0;padding:.3rem 1rem;border-inline-start:4px solid var(--yellow);background:var(--surface-2);border-radius:8px}
.prose code{font-family:var(--font-mono);font-size:.86em;background:var(--surface-2);border:1px solid var(--line);padding:1px 5px;border-radius:6px;direction:ltr;unicode-bidi:isolate;white-space:nowrap}
.prose pre{direction:ltr;text-align:start;unicode-bidi:plaintext;background:#17211c;color:#f4f1e8;padding:14px 16px;border-radius:10px;overflow-x:auto;font-size:.86rem;line-height:1.6;max-width:100%}
.prose pre code{background:none;border:0;padding:0;color:inherit;white-space:pre}
.prose img{height:auto;border-radius:10px}
a.gl{text-decoration-style:dotted;text-decoration-thickness:1.5px;position:relative}
a.gl[data-def]:hover::after,a.gl[data-def]:focus-visible::after{content:attr(data-def);position:absolute;z-index:30;inset-inline-start:0;top:calc(100% + 6px);width:max-content;max-width:min(320px,80vw);padding:.55rem .7rem;border-radius:8px;background:var(--ink);color:#fff;font-size:.8125rem;line-height:1.5;font-weight:400;text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.18);white-space:normal;pointer-events:none}
sup.unv{font-size:.7em;color:var(--warn);cursor:help;margin-inline-start:2px;vertical-align:super;line-height:0}
.unv-note{font-size:.82rem;margin-top:1.6rem}
.table-wrap{overflow-x:auto;margin:1.2rem 0;border:1px solid var(--line);border-radius:10px;max-width:100%}
.table-wrap table{border-collapse:collapse;width:100%;min-width:520px;font-size:.9rem;line-height:1.55}
.table-wrap th{background:var(--surface-2);text-align:start;font-weight:700}
.table-wrap th,.table-wrap td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.table-wrap tr:last-child td{border-bottom:0}
.callout{margin:1.2rem 0;padding:12px 16px;border-radius:10px;border:1px solid var(--line);border-inline-start-width:4px;background:var(--surface);font-size:.97rem}
.callout>*:last-child{margin-bottom:0}
.callout>p:nth-child(2){margin-top:.2rem}
.callout-label{margin:0 0 .15rem;font-size:.78rem;font-weight:700;letter-spacing:.02em}
.callout-tip{border-inline-start-color:var(--mint);background:var(--mint-soft)}
.callout-warning{border-inline-start-color:var(--coral);background:var(--coral-soft)}
.callout-definition{border-inline-start-color:var(--info);background:#e6f0f7}
.callout-decision{border-inline-start-color:var(--yellow);background:var(--yellow-soft)}
.callout-example,.callout-tradeoff,.callout-when,.callout-whennot{border-inline-start-color:var(--muted);background:var(--surface-2)}
.callout-when{border-inline-start-color:var(--ok)}.callout-whennot{border-inline-start-color:var(--err)}
.article-tags{margin-top:2rem}.article-tags ul{list-style:none;padding:0;margin:.3rem 0;display:flex;gap:6px;flex-wrap:wrap}
.article-tags a{display:inline-block;padding:4px 11px;border-radius:999px;border:1px solid var(--line);text-decoration:none;font-size:.85rem;background:var(--surface)}
.src-note{font-size:.8rem;margin-top:1.2rem}

/* sidebar: course list + toc */
.side{position:sticky;top:calc(var(--header-h) + 58px);max-height:calc(100vh - var(--header-h) - 76px);overflow:auto;font-size:.86rem;padding-inline-end:4px}
.series-list{margin-bottom:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.series-list summary{cursor:pointer;padding:10px 12px;font-weight:700;font-size:.88rem;line-height:1.4;list-style:none}
.series-list summary::-webkit-details-marker{display:none}
.series-list summary::after{content:'';display:inline-block;width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg);margin-inline-start:8px;vertical-align:2px}
.series-list[open] summary::after{transform:rotate(-135deg);vertical-align:-1px}
.series-list ol{list-style:none;margin:0;padding:0 6px 8px;max-height:236px;overflow:auto;scroll-behavior:auto}
.series-list li a{display:flex;gap:8px;align-items:baseline;padding:6px 8px;border-radius:8px;color:var(--ink);text-decoration:none;line-height:1.4}
.series-list li a:hover{background:var(--surface-2)}
.series-list .n{flex:0 0 1.5em;color:var(--muted);font-variant-numeric:tabular-nums}
.series-list li.cur a{background:var(--yellow-soft);font-weight:700}
.series-list li.done a::after{content:'✓';margin-inline-start:auto;color:var(--ok);font-weight:700}
.toc-title{font-weight:700;margin:0 0 .5rem;font-size:.85rem;color:var(--muted)}
.toc ol,.toc-mobile ol{list-style:none;margin:0;padding:0;border-inline-start:2px solid var(--line)}
.toc a{display:block;padding:4px 12px;color:var(--muted);text-decoration:none;line-height:1.4;margin-inline-start:-2px;border-inline-start:2px solid transparent}
.toc li.l3 a{padding-inline-start:24px;font-size:.82rem}
.toc a:hover{color:var(--ink)}
.toc a.active{color:var(--ink);font-weight:700;border-inline-start-color:var(--coral)}
.toc-mobile{display:none;margin:12px 0;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.toc-mobile summary{cursor:pointer;padding:10px 14px;font-weight:700;font-size:.92rem}
.toc-mobile ol{padding:0 8px 8px;border:0}.toc-mobile a{display:block;padding:6px 10px;text-decoration:none;color:var(--ink);font-size:.92rem}.toc-mobile li.l3 a{padding-inline-start:24px;color:var(--muted)}
@media(max-width:1000px){.toc-mobile{display:block}}

/* course navigation (prev / next) */
.course-nav{margin-top:2.4rem;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface-2);overflow:hidden}
.course-nav-title{margin:0;padding:9px 14px;font-size:.84rem;color:var(--muted);border-bottom:1px solid var(--line)}
.course-nav-row{display:grid;grid-template-columns:1fr 1fr}
.cn{display:flex;flex-direction:column;gap:2px;padding:12px 16px;text-decoration:none;color:var(--ink);min-width:0}
a.cn:hover{background:var(--surface)}
.cn+.cn{border-inline-start:1px solid var(--line)}
.cn-next{text-align:end}
.cn-dir{font-size:.8rem;color:var(--muted);font-weight:500}
.cn-title{font-weight:700;font-size:.95rem;line-height:1.4}
@media(max-width:560px){.course-nav-row{grid-template-columns:1fr}.cn+.cn{border-inline-start:0;border-top:1px solid var(--line)}.cn-next{text-align:start}}

/* "continue from here": a clearly separated band */
.more{background:var(--surface-2);border-top:1px solid var(--line-strong);margin-top:1.5rem;padding:30px 0 44px}
.more h2{font-size:var(--h2)}

.site-footer{border-top:1px solid var(--line);padding:22px 0 40px;color:var(--muted);font-size:.85rem;background:var(--bg)}
.site-footer p{margin:.2rem 0}
.footer-links{display:flex;gap:6px 18px;flex-wrap:wrap;margin-bottom:10px}
.footer-links a{color:var(--ink);text-decoration:none;font-weight:500}
.footer-links a:hover{text-decoration:underline}
@media(max-width:600px){:root{--gutter:16px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.fig{margin:1.6rem 0}.fig img{display:block;width:100%;height:auto;border-radius:12px;border:1px solid var(--line)}.fig figcaption{margin-top:.5rem;font-size:.84rem;color:var(--muted);line-height:1.5}
.prose :not(pre)>code{overflow-wrap:anywhere;white-space:normal}

a.gl.nw{white-space:nowrap}
.copy-link,.copy-table{font:inherit;font-size:.84rem;background:transparent;border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;margin-inline-start:8px;color:var(--ink);cursor:pointer}
.copy-link:hover,.copy-table:hover{background:var(--surface-2)}
.copy-table{margin:1rem 0 -.6rem;display:block}
.gl-pop{position:absolute;z-index:60;background:var(--ink);color:#fff;border-radius:12px;padding:14px 40px 12px 14px;font-size:.9rem;line-height:1.55;box-shadow:0 8px 28px rgba(0,0,0,.25)}
.gl-pop p{margin:0 0 8px}.gl-pop a{color:#fff;font-weight:700}
.gl-pop button{position:absolute;top:6px;inset-inline-end:8px;background:none;border:0;color:#fff;font-size:1.4rem;line-height:1;cursor:pointer;padding:6px}
.unv-note{margin:0 0 1rem;font-size:.84rem}
.table-wrap{background:linear-gradient(to right,var(--surface) 30%,transparent),linear-gradient(to left,var(--surface) 30%,transparent),radial-gradient(farthest-side at 0 50%,rgba(0,0,0,.14),transparent),radial-gradient(farthest-side at 100% 50%,rgba(0,0,0,.14),transparent);background-position:0 0,100% 0,0 0,100% 0;background-repeat:no-repeat;background-size:40px 100%,40px 100%,14px 100%,14px 100%;background-attachment:local,local,scroll,scroll}
@media(max-width:700px){.prose pre{white-space:pre-wrap;overflow-wrap:anywhere}.prose pre code{white-space:pre-wrap}}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.catalog-filter{display:block;margin:1rem 0 1.4rem}
.catalog-filter input{width:100%;max-width:520px;font:inherit;padding:10px 14px;border:1px solid var(--line-strong);border-radius:999px;background:var(--surface)}
.catalog-table td,.catalog-table th{white-space:nowrap}.catalog-table td:nth-child(2){white-space:normal;min-width:220px}
.cat-code{font-family:var(--font-mono,ui-monospace,monospace);font-size:.82rem;color:var(--muted)}
.cat-section{margin-top:1.8rem}.cat-section h2{font-size:1.15rem;margin:0 0 .4rem}
tr.hit td{background:var(--surface-2)}
.item-code{font-size:.72rem;margin-top:1.6rem;letter-spacing:.04em;direction:ltr;text-align:start}.item-code a{color:var(--muted);text-decoration:none;font-family:var(--font-mono,ui-monospace,monospace)}

/* review fixes: hit areas, landmark focus, touch anchors */
#main:focus{outline:none}
a.gl{padding:10px 4px;margin:-10px -4px}
@media(pointer:coarse){
  .saved-btn,.nav-toggle,.chip,.copy-link,.star-lg,.toc a,.site-footer a,.crumbs a{min-height:44px;display:inline-flex;align-items:center}
  .star-mini{min-width:44px;min-height:44px}
  .brand,.item-code a{display:inline-block;padding-block:10px}
}
@media(hover:none){.prose .anchor{display:none}}