/*
 * typing-practice.io theme.
 * Source of truth: docs/typing-practice-io-theme-demo (1).html (design tokens, components, breakpoints).
 * Removed from the demo: preview bar (.preview*), view switching (.view), manual dark toggle.
 * Dark mode follows prefers-color-scheme only.
 */
:root{
  --paper:#F4F6FA; --surface:#FFFFFF; --ink:#18202E; --ink-2:#4A5568; --line:#DCE1EA;
  --key:#FFFFFF; --key-edge:#C7CEDB; --key-press:#EEF1F6;
  --link:#2747C9; --link-soft:#E7ECFB;
  --caret:#F2B705; --ok:#1E8A5A; --err:#D33B57; --pending:#9AA3B2;
  --ad:#FBF4DE; --ad-line:#D9B84C; --note:#2747C9;
  --r-key:8px; --r-box:14px;
  --sans:"IBM Plex Sans",system-ui,sans-serif; --mono:"JetBrains Mono",ui-monospace,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#11151D; --surface:#181D27; --ink:#E8ECF3; --ink-2:#A3ADBD; --line:#2A3140;
  --key:#202634; --key-edge:#0A0D13; --key-press:#262D3D; --link:#8EA6FF; --link-soft:#1F2740;
  --pending:#5E687A; --ad:#2A2614; --ad-line:#8C7630;}}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55}
a{color:var(--link);text-decoration:none} a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--caret);outline-offset:2px}
button{font:inherit;color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}

/* ---------- keycap: the one memorable element */
.kc{display:inline-flex;align-items:center;gap:6px;background:var(--key);border:1px solid var(--key-edge);border-bottom-width:4px;border-radius:var(--r-key);padding:6px 12px 4px;font-weight:500;color:var(--ink);cursor:pointer;transition:transform .06s, border-bottom-width .06s;text-decoration:none;white-space:nowrap}
.kc:hover{text-decoration:none;background:var(--key-press)}
.kc:active,.kc.on{transform:translateY(3px);border-bottom-width:1px;margin-bottom:3px}
.kc.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.kc small{font-family:var(--mono);font-size:11px;color:var(--ink-2)}
.kc.on small{color:var(--paper);opacity:.7}

/* ---------- header */
header.site{background:var(--surface);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:20px;padding-top:12px;padding-bottom:14px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;color:var(--ink)}
.logo:hover{text-decoration:none}
.logo .cap{font-family:var(--mono);font-size:13px;background:var(--ink);color:var(--paper);border-radius:6px;padding:3px 7px 2px;border-bottom:3px solid var(--caret)}
.logo span.dom{color:var(--ink-2);font-weight:500}
nav.main{display:flex;gap:8px;flex-wrap:wrap;flex:1}
.search{margin-left:auto;display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:var(--paper);color:var(--ink-2);font-size:14px;min-width:180px}
.burger{display:none}
@media (max-width:860px){
  nav.main{order:3;flex-basis:100%;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
  .search{min-width:0;flex:1}
}

/* ---------- layout */
main{padding:22px 0 60px}
.grid-main{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
@media (max-width:1000px){.grid-main{grid-template-columns:minmax(0,1fr)}.rail{display:none}}
.crumbs{font-size:13px;color:var(--ink-2);margin:0 0 10px}
.crumbs a{color:var(--ink-2)}
h1{font-size:clamp(26px,3.2vw,36px);line-height:1.15;margin:0 0 6px;letter-spacing:-.01em}
h2{font-size:22px;line-height:1.25;margin:0 0 14px}
h3{font-size:17px;margin:18px 0 6px}
.lede{color:var(--ink-2);margin:0 0 18px;max-width:68ch}
section.block{margin-top:40px}
.row-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:12px}
.row-head a{font-size:14px;font-weight:500}

/* ---------- typing box */
.tbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-box);padding:18px 20px 16px;position:relative}
.tbar{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.tbar .grp{display:flex;gap:6px;flex-wrap:wrap;margin-right:10px}
.tbar .kc{padding:4px 10px 3px;font-size:14px}
.stats{display:flex;gap:22px;font-family:var(--mono);font-size:14px;color:var(--ink-2);margin-bottom:10px}
.stats b{font-size:22px;color:var(--ink);font-weight:700;display:block;line-height:1.1}
.words{font-family:var(--mono);font-size:clamp(19px,2.2vw,24px);line-height:1.7;color:var(--pending);height:calc(1.7em * 3);overflow:hidden;position:relative;cursor:text;word-break:normal}
.words .inner{position:relative;transition:top .12s}
.w{display:inline-block;margin-right:.6ch;border-radius:3px}
.c{position:relative}
.c.ok{color:var(--ink)} .c.bad{color:var(--err);background:color-mix(in srgb,var(--err) 12%,transparent)}
.c.cur::before{content:"";position:absolute;left:-1px;top:.18em;bottom:.18em;width:2px;background:var(--caret);animation:blink 1s steps(1) infinite}
.w.extra-cur::after{content:"";display:inline-block;width:2px;height:1.1em;vertical-align:-.15em;background:var(--caret);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
@media (prefers-reduced-motion:reduce){.c.cur::before,.w.extra-cur::after{animation:none}.kc{transition:none}}
.hidden-input{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px;left:0;top:0}
.focus-hint{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--surface) 70%,transparent);backdrop-filter:blur(2px);border-radius:var(--r-box);font-weight:500;color:var(--ink);cursor:text}
.focus-hint[hidden]{display:none}
.tfoot{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:13px;color:var(--ink-2);gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:8px;padding:6px 12px;cursor:pointer;font-weight:500}
.btn.primary{background:var(--link);border-color:var(--link);color:#fff}
.btn.primary:hover{text-decoration:none;filter:brightness(1.08)}

/* result panel */
.result{display:none;margin-top:14px;border-top:1px dashed var(--line);padding-top:14px}
.result.show{display:block}
.result .big{display:flex;gap:28px;flex-wrap:wrap;align-items:flex-end;margin-bottom:12px}
.result .big div{font-family:var(--mono);color:var(--ink-2);font-size:13px}
.result .big b{display:block;font-size:40px;line-height:1;color:var(--ink)}
.weak{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin:6px 0 12px;font-size:14px}
.weak .kc{cursor:default;font-family:var(--mono);padding:3px 9px 2px}
.next{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:640px){.next{grid-template-columns:1fr}}
.next a{display:block;border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:var(--ink);background:var(--paper)}
.next a:hover{text-decoration:none;border-color:var(--link)}
.next a span{display:block;font-size:13px;color:var(--ink-2)}

/* ---------- tiles */
.tests{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
@media (max-width:760px){.tests{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tile{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;color:var(--ink)}
.tile:hover{text-decoration:none;border-color:var(--link)}
.tile .t{font-family:var(--mono);font-size:24px;font-weight:700;line-height:1.1;white-space:nowrap}
.tile .u{font-family:var(--mono);font-size:11px;color:var(--pending);margin-top:4px}
.tile .d{font-size:13px;color:var(--ink-2);margin-top:6px}

.games{display:grid;grid-template-columns:repeat(auto-fill,150px);gap:16px 14px;justify-content:start}
/* narrow phones: two flexible columns so 2 cards always fit the gutters */
@media (max-width:400px){.games{grid-template-columns:repeat(2,minmax(0,1fr));justify-content:stretch}}
.g{display:block;color:var(--ink);min-width:0;max-width:150px}
@media (max-width:400px){.g{max-width:none}}
.g:hover{text-decoration:none}
.g .thumb{aspect-ratio:1/1;border-radius:12px;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:8px;font-family:var(--mono);font-weight:700;color:#fff;font-size:13px;letter-spacing:.02em;width:100%}
.g:hover .thumb{outline:3px solid var(--caret)}
.g .thumb i{position:absolute;right:6px;top:6px;font-style:normal;font-size:10px;line-height:1.3;background:rgba(0,0,0,.45);padding:1px 5px;border-radius:4px;max-width:calc(100% - 12px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--sans);font-weight:500}
.g .name{font-weight:600;margin-top:6px;font-size:14px;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
.g .meta{font-size:12px;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 16px}

.path{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px;counter-reset:l}
@media (max-width:900px){.path{grid-template-columns:repeat(2,minmax(0,1fr))}}
.path a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px;color:var(--ink);font-size:14px}
.path a:hover{text-decoration:none;border-color:var(--link)}
.path a b{display:block;font-family:var(--mono);font-size:12px;color:var(--ink-2);font-weight:500}

.drills{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:760px){.drills{grid-template-columns:1fr}}
.drills a{display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:11px 14px;color:var(--ink)}
.drills a:hover{text-decoration:none;border-color:var(--link)}
.drills a span{font-size:13px;color:var(--ink-2)}
.drills a b{font-weight:500}
.drills a .url{font-family:var(--mono);font-size:11px;color:var(--pending)}

/* .prose: định dạng đầy đủ ở cuối file (content format) */
details.faq{border-top:1px solid var(--line);padding:10px 0}
details.faq summary{cursor:pointer;font-weight:600}
details.faq p{margin:8px 0 0;color:var(--ink-2)}

/* ---------- ads */
.ad{background:var(--ad);border:1.5px dashed var(--ad-line);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--ink-2);font-size:12px;text-align:center;margin:0 auto}
.ad.lb{height:90px;max-width:728px;margin-top:18px}
.ad.mr{width:300px;height:250px}
.ad.hp{width:300px;height:600px}
.ad.mb{height:100px;max-width:320px;display:none;margin-top:18px}
@media (max-width:760px){.ad.lb{display:none}.ad.mb{display:flex}}
.rail{display:flex;flex-direction:column;gap:18px;position:sticky;top:64px}
.rail .card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px}
.rail .card h3{margin:0 0 8px;font-size:15px}
.rail .card ol{margin:0;padding-left:20px;font-size:14px}

/* ---------- game page */
.stage{background:#0E1424;border-radius:var(--r-box);aspect-ratio:16/9;position:relative;overflow:hidden;color:#fff}
.stage .rain{position:absolute;inset:0}
.stage .drop{position:absolute;font-family:var(--mono);font-size:18px;font-weight:700;background:rgba(255,255,255,.08);padding:2px 8px;border-radius:6px;white-space:nowrap}
.stage .drop .hit{color:var(--caret)}
.stage .hud{position:absolute;left:12px;top:10px;font-family:var(--mono);font-size:14px;display:flex;gap:16px}
.stage .ground{position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--err)}
.stage .overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:rgba(10,14,24,.72);text-align:center;padding:16px}
.stage .overlay[hidden]{display:none}
.stage .overlay h2{margin:0;color:#fff}
.stage .overlay p{margin:0;color:#C9D2E3;font-size:14px}
.gbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:10px 0 0;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:13px;color:var(--ink-2);background:var(--surface)}
.controls{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:15px;max-width:520px}
.controls .kc{cursor:default;font-family:var(--mono);font-size:13px;padding:2px 8px 1px;justify-self:start}

/* ---------- lesson */
.lesson{display:grid;grid-template-columns:240px minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:900px){.lesson{grid-template-columns:1fr}}
.lnav{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px}
.lnav a{display:flex;gap:8px;padding:7px 8px;border-radius:8px;color:var(--ink);font-size:14px}
.lnav a b{font-family:var(--mono);color:var(--ink-2);font-weight:500;width:18px}
.lnav a.cur{background:var(--link-soft);font-weight:600}
.lnav a:hover{text-decoration:none;background:var(--key-press)}
.kb{display:flex;flex-direction:column;gap:6px;margin:14px 0;user-select:none;max-width:640px}
.kb .r{display:flex;gap:6px}
.lcards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (max-width:700px){.lcards{grid-template-columns:1fr}}
.lcard{display:grid;grid-template-columns:44px 1fr;gap:4px 14px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:var(--ink)}
.lcard:hover{text-decoration:none;border-color:var(--link)}
.lcard .n{grid-row:span 3;font-family:var(--mono);font-size:26px;font-weight:700;line-height:1;color:var(--ink-2)}
.lcard b{font-size:16px}
.lcard .d{font-size:14px;color:var(--ink-2)}
.lcard .keys{font-family:var(--mono);font-size:12px;color:var(--pending)}
.kb .k{flex:1;max-width:44px;aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:14px;border-radius:7px;border:1px solid var(--key-edge);border-bottom-width:3px;background:var(--key);opacity:.45;position:relative}
.kb .k.t{opacity:1}
.kb .k.nx{outline:3px solid var(--caret);outline-offset:1px}
.kb .k.bump::after{content:"";position:absolute;bottom:6px;width:10px;height:2px;border-radius:2px;background:var(--ink-2)}
.f1{box-shadow:inset 0 -5px 0 #E06C75}.f2{box-shadow:inset 0 -5px 0 #E5A04B}.f3{box-shadow:inset 0 -5px 0 #4FAE7B}.f4{box-shadow:inset 0 -5px 0 #4C8BF5}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ink-2)}
.legend span::before{content:"";display:inline-block;width:12px;height:5px;border-radius:2px;margin-right:6px;vertical-align:middle;background:var(--c)}

/* ---------- footer */
footer.site{border-top:1px solid var(--line);background:var(--surface);font-size:14px;color:var(--ink-2)}
footer.site .wrap{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding-top:28px;padding-bottom:28px}
@media (max-width:760px){footer.site .wrap{grid-template-columns:repeat(2,minmax(0,1fr))}}
footer.site h4{margin:0 0 8px;color:var(--ink);font-size:14px}
footer.site a{display:block;color:var(--ink-2);padding:2px 0}



/* ---------- additions on top of the demo */
html{color-scheme:light dark}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* breadcrumbs: real links + plain current item */
.crumbs-nav{margin:0}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{color:var(--link);text-decoration:underline}
.crumbs .sep{color:var(--pending)}
.crumbs [aria-current="page"]{color:var(--ink)}

/* header search form */
form.search{margin-left:auto;display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:0 14px;background:var(--paper);min-width:180px}
form.search:focus-within{border-color:var(--link);outline:2px solid var(--caret);outline-offset:1px}
form.search input{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:inherit;font-size:14px;padding:7px 0;outline:0}
form.search input::placeholder{color:var(--ink-2)}
@media (max-width:860px){form.search{min-width:0;flex:1}}

/* footer bottom line */
footer.site .wrap.foot-bottom{display:block;padding-top:0;padding-bottom:22px;font-size:13px}

/* empty states and pagination */
.grid-empty{border:1px dashed var(--line);border-radius:12px;padding:28px 16px;text-align:center;color:var(--ink-2);background:var(--surface)}
.pager{display:flex;gap:6px;flex-wrap:wrap;align-items:center;justify-content:center;margin:24px 0 0}
.pager a,.pager span{display:inline-flex;min-width:36px;height:36px;align-items:center;justify-content:center;padding:0 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);font-size:14px}
.pager a:hover{text-decoration:none;border-color:var(--link)}
.pager .cur{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:600}
.pager .gap{border:0;background:transparent;color:var(--pending);min-width:0}

/* 404 block */
.notfound{max-width:560px;margin:40px auto 20px;text-align:center}
.notfound .nf-code{font-family:var(--mono);font-size:64px;font-weight:700;line-height:1;margin:0 0 8px;color:var(--pending)}
.notfound .lede{margin-left:auto;margin-right:auto}
.nf-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:18px}

/* share button and custom text input */
.share{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:8px;padding:6px 12px;cursor:pointer;font-weight:500}
.share:hover{border-color:var(--link)}
.share.done{border-color:var(--ok);color:var(--ok)}
.custom-text{display:block;width:100%;min-height:96px;resize:vertical;margin:0 0 12px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);font:inherit;font-family:var(--mono);font-size:15px;line-height:1.5}
.custom-text:focus{outline:2px solid var(--caret);outline-offset:1px;border-color:var(--link)}

/* kids test and practice: bigger words */
.tbox.big .words{font-size:clamp(26px,3.4vw,34px)}

/* FAQ answers can hold paragraphs and lists */
details.faq .a{margin-top:8px;color:var(--ink-2)}
details.faq .a p{margin:0 0 8px}

/* live ad code replaces the dashed placeholder look */
.ad.live{background:transparent;border:0;border-radius:0}

/* games: uploaded thumbnail inside the .g card */
.g .thumb.has-img{padding:0;background:var(--key)}
.g .thumb.has-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.g .thumb i{z-index:1}
/* sidebar "Popular now": 2 x 2 cards that fit the 270px card body */
.games.two{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 10px;justify-content:stretch}
.games.two .g{max-width:none}
.lcard.plain{grid-template-columns:1fr}
.cta{margin:14px 0 0}

/* game page: the embed frame fills the 16:9 stage */
.stage iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block;background:transparent}
.gbar .grow{flex:1}
.gbar .btn .n{font-family:var(--mono);font-size:13px;color:var(--ink-2)}
.gbar .btn[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.gbar .btn[aria-pressed="true"] .n{color:var(--paper);opacity:.75}
.stage:fullscreen{border-radius:0;aspect-ratio:auto}
.stage.faux-fs{position:fixed;inset:0;z-index:200;border-radius:0;aspect-ratio:auto}
.stage .fs-exit{position:absolute;right:10px;top:10px;z-index:3}
.stage .fs-exit[hidden]{display:none}
body.game-lock{overflow:hidden}

/* typing engine additions: extra characters, custom text panel, link-style duration keys, result share */
.c.extra{color:var(--err);background:color-mix(in srgb,var(--err) 8%,transparent)}
.custom{margin:0 0 12px}
.custom[hidden]{display:none}
.custom .custom-use{margin-top:0}
.tbar a.kc{text-decoration:none}
.result .share{margin-top:12px}
.weak-note[hidden]{display:none}
.weak-note{border-left:3px solid var(--caret);padding-left:12px}
@media (prefers-reduced-motion:reduce){.words .inner{transition:none}}
.result input.share-url{display:block;width:100%;max-width:420px;margin-top:8px;padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);font-family:var(--mono);font-size:13px}
.share-card{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:18px 20px;margin:14px 0}
.share-card .stats{gap:34px;flex-wrap:wrap;font-size:14px}
.share-card .stats b{font-size:44px}
.share-card p{margin:8px 0 0}

/* =========================================================
   typing-practice.io — SEO content block (.prose) format
   Áp dụng cho mọi section.block.prose trên toàn site.
   Dùng biến màu sẵn có của theme -> tự chạy cả dark mode.
   ========================================================= */

/* 1. Khung nội dung: card trắng, tách khỏi grid game / tool */
section.block.prose{
  max-width:none;
  margin-top:56px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-box);
  padding:40px 48px 32px;
}
section.block.prose > *{max-width:72ch}

/* 2. Đoạn mở đầu (nếu block bắt đầu bằng <p>): chữ lớn hơn, có vạch ngăn */
section.block.prose > p:first-of-type:not(h2 ~ p){
  font-size:18px;
  line-height:1.6;
  color:var(--ink-2);
  margin:0 0 8px;
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
}

/* 3. Heading */
.prose h2{
  font-size:24px;
  line-height:1.3;
  letter-spacing:-.01em;
  margin:40px 0 12px;
}
section.block.prose > h2:first-child{margin-top:0}
.prose h3{
  font-size:18px;
  line-height:1.35;
  margin:28px 0 8px;
  padding-left:12px;
  border-left:3px solid var(--caret);
}

/* 4. Đoạn văn, list, link */
.prose p{font-size:16.5px;line-height:1.75;margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{line-height:1.7;margin:8px 0}
.prose li::marker{color:var(--ink-2)}
.prose a{color:var(--link);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.prose a:hover{text-decoration-thickness:2px}
.prose strong{font-weight:600}

/* 5. FAQ dạng <details> */
.prose details{border-top:1px solid var(--line);padding:14px 0;max-width:72ch}
.prose details:last-of-type{border-bottom:1px solid var(--line)}
.prose details summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.prose details summary::-webkit-details-marker{display:none}
.prose details summary::after{content:"+";font-family:var(--mono);color:var(--ink-2)}
.prose details[open] summary::after{content:"\2212"}
.prose details p{margin:10px 0 0;color:var(--ink-2)}

/* 6. Mục lục "On this page" — áp dụng cho MỌI page có content block
      (Page, Game, Post, category page). Thêm class .has-toc vào section
      và render <nav class="toc"> làm phần tử đầu tiên (xem file demo).
      Content block phải nằm full width, không nằm chung cột với rail. */
section.block.prose.has-toc{
  display:grid;
  grid-template-columns:minmax(0,1fr) 240px;
  column-gap:56px;
  align-items:start;
}
section.block.prose.has-toc > *{grid-column:1}
section.block.prose.has-toc > .toc{
  grid-column:2;grid-row:1 / span 99;
  position:sticky;top:24px;
  max-width:none;
  border-left:1px solid var(--line);
  padding-left:20px;font-size:14px;
}
.prose .toc b{display:block;font-size:13px;color:var(--ink-2);font-weight:600;margin-bottom:10px}
.prose .toc a{display:block;color:var(--ink-2);text-decoration:none;padding:5px 0;line-height:1.35}
.prose .toc a:hover{color:var(--link)}

/* 7. Mobile / tablet */
@media (max-width:1000px){
  section.block.prose,section.block.prose.has-toc{display:block;padding:28px 20px}
  .prose .toc{display:none}
}