/* Giao diện theo phong cách The-Evidence-Based-Life (bảng màu kiểu VitePress). Dùng thuộc tính logic để chạy được RTL. */
:root{
  --bg:#fff;--bg-alt:#f6f6f7;--bg-soft:#f6f6f7;--bg-mute:#f1f1f2;--bg-elv:#fff;
  --divider:#e2e2e3;--t1:rgba(60,60,67,1);--t2:rgba(60,60,67,.78);--t3:rgba(60,60,67,.56);
  --brand-1:#3451b2;--brand-2:#3a5ccc;--brand-soft:rgba(100,108,255,.14);
  --green-1:#18794e;--green-soft:rgba(16,185,129,.14);--yellow-1:#915930;--yellow-soft:rgba(234,179,8,.14);
  --red-1:#b8272c;--red-soft:rgba(244,63,94,.14);--gray-1:#565a5f;--gray-soft:rgba(142,150,170,.14);
  --font:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Arabic","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--nav-h:60px;--side-w:340px;--fs-main:16px;--fs-side:14px;--main-w:1100px;color-scheme:light;
}
html.dark{
  --bg:#07080A;--bg-alt:#0B0C0F;--bg-soft:#111317;--bg-mute:#16191E;--bg-elv:#111317;--divider:#1F232A;
  --t1:rgba(244,246,248,.92);--t2:rgba(220,224,230,.66);--t3:rgba(200,206,214,.42);
  --brand-1:#9fb0ff;--brand-2:#6f84ee;--brand-soft:rgba(110,130,255,.13);
  --green-1:#3dd68c;--green-soft:rgba(16,185,129,.13);--yellow-1:#f2b155;--yellow-soft:rgba(234,179,8,.13);
  --red-1:#f66f81;--red-soft:rgba(244,63,94,.13);--gray-1:#98a0ab;--gray-soft:rgba(140,150,165,.13);color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:clip;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{margin:0;background:var(--bg);color:var(--t1);font:16px/1.7 var(--font);-webkit-font-smoothing:antialiased}
a{color:var(--brand-1);text-decoration:none}a:hover{text-decoration:underline}
button{font:inherit;color:inherit}
.skip{position:absolute;left:0;top:0;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip:focus{width:auto;height:auto;clip-path:none;top:8px;inset-inline-start:8px;z-index:99;background:var(--bg);padding:8px}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
/* thanh trên */
.nav{position:sticky;top:0;z-index:30;height:var(--nav-h);display:flex;align-items:center;gap:12px;padding-inline:16px;background:var(--bg);border-bottom:1px solid var(--divider)}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--t1);white-space:nowrap;min-width:0}
.brand span{overflow:hidden;text-overflow:ellipsis}.brand:hover{text-decoration:none}
.search-btn{display:flex;align-items:center;gap:8px;margin-inline-start:12px;height:40px;padding:0 10px;min-width:44px;border-radius:8px;border:1px solid transparent;background:var(--bg-alt);color:var(--t2);cursor:pointer}
.search-btn:hover{border-color:var(--brand-1)}.search-btn .ph{font-size:14px}
kbd{font:12px var(--mono);border:1px solid var(--divider);border-radius:4px;padding:0 5px;color:var(--t3)}
.nav-r{margin-inline-start:auto;display:flex;align-items:center;gap:4px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-width:40px;height:40px;border:0;border-radius:8px;background:none;color:var(--t2);cursor:pointer;list-style:none}
.icon-btn::-webkit-details-marker{display:none}.icon-btn:hover{color:var(--t1);background:var(--bg-alt)}
.lang-code{font-size:12px;font-weight:600}
.pop{position:relative}.pop-body{position:absolute;inset-inline-end:0;top:44px;z-index:40;display:grid;min-width:180px;padding:6px;background:var(--bg-elv);border:1px solid var(--divider);border-radius:12px;box-shadow:0 12px 32px rgba(0,0,0,.12)}
.disp .pop-body{min-width:300px;padding:12px;gap:10px}.disp-row{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:14px}
.steps{display:inline-flex;border:1px solid var(--divider);border-radius:8px;overflow:hidden}.steps button{border:0;background:var(--bg);min-height:34px;padding:0 10px;cursor:pointer;font-size:13px}.steps button+button{border-inline-start:1px solid var(--divider)}.steps button:hover{color:var(--brand-1)}.steps button[aria-pressed=true]{background:var(--brand-soft);color:var(--brand-1);font-weight:600}
.icon-btn .lbl{font-size:13px;font-weight:500}a.icon-btn{padding:0 8px;text-decoration:none}#login-btn.on{color:var(--brand-1)}
.lang-list a{padding:8px 12px;border-radius:6px;color:var(--t1)}.lang-list a:hover{background:var(--bg-alt);text-decoration:none}.lang-list a[aria-current]{color:var(--brand-1);font-weight:600}
.only-m{display:none}
/* bố cục */
.layout{display:flex;margin:0 auto}
html[data-width=normal]{--main-w:860px}html[data-width=wide]{--main-w:1100px}html[data-width=full]{--main-w:100%}
.side{position:sticky;flex-basis:var(--side-w)!important;top:var(--nav-h);flex:0 0 var(--side-w);height:calc(100vh - var(--nav-h));overflow-y:auto;padding:24px 16px 48px 24px;padding-inline:24px 16px;background:var(--bg-alt);border-inline-end:1px solid var(--divider);font-size:var(--fs-side);overscroll-behavior:contain}
.side-resize{position:absolute;top:0;bottom:0;inset-inline-end:-3px;width:6px;cursor:col-resize;z-index:2}.side-resize:hover{background:var(--brand-soft)}
html.side-hidden .side{display:none}
.side-x{border:0!important;padding-bottom:4px!important;margin:0!important;color:var(--t1)!important;font-weight:500}
.side-h{margin:0 0 8px;font-weight:700;color:var(--t1)}
.side ol{list-style:none;margin:0;padding:0}
.side a{display:flex;justify-content:space-between;gap:8px;padding:5px 0;color:var(--t2);line-height:1.45}.side a:hover{color:var(--brand-1);text-decoration:none}
.side .cnt{color:var(--t3);font-size:12px;flex:none}
.side-all{border-bottom:1px solid var(--divider);padding-bottom:10px!important;margin-bottom:8px;color:var(--brand-1)!important}
.side-about{border:0;border-top:1px solid var(--divider);margin-top:12px;padding-top:12px!important}
.side-ch>li.on>a{color:var(--t1);font-weight:600}
.side-items{margin:4px 0 8px!important;border-inline-start:1px solid var(--divider)}
.side-items a{justify-content:flex-start;padding:4px 0 4px 0;padding-inline-start:12px;font-size:13px;color:var(--t3)}
.side-items .no{flex:0 0 22px;color:var(--t3)}
.side-items .tx{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-items a.cur{color:var(--brand-1);border-inline-start:2px solid var(--brand-1);margin-inline-start:-1px}
.side-items a.is-done .tx{text-decoration:line-through;text-decoration-color:var(--t3)}
.main{flex:1;min-width:0;max-width:var(--main-w);padding:40px 48px 64px;margin:0 auto;font-size:var(--fs-main)}
.main .row{font-size:.94em}.main .row dt{font-size:.82em}.card-h .card-t{margin:0;font-size:1.15em;line-height:1.45}.card-link{color:inherit}.card-link:hover{color:var(--brand-1);text-decoration:none}
.solo .card-h .card-t{font-size:1.6em;line-height:1.3}.alias{position:absolute}.back{margin-top:16px}
/* trang chủ */
.hero h1{font-size:34px;line-height:1.2;margin:0 0 4px;letter-spacing:-.02em}
.hero .sub{margin:0 0 16px;color:var(--brand-1);font-weight:600}
.hero .tag{font-size:18px;color:var(--t1);font-weight:500}
.hero p{color:var(--t2)}
.stats{display:flex;flex-wrap:wrap;gap:8px 20px;list-style:none;padding:0;margin:16px 0 0;color:var(--t2);font-size:14px}.stats b{color:var(--t1);font-size:18px}
.start{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:28px 0 20px;padding:18px 20px;border:1px solid var(--brand-2);border-radius:12px;background:var(--brand-soft)}
.start h2{margin:0;font-size:17px}.start p{margin:2px 0 0;color:var(--t2);font-size:14px}
.btn{flex:none;min-height:44px;padding:0 18px;border:0;border-radius:20px;background:var(--brand-1);color:var(--bg);font-weight:600;cursor:pointer}
html.dark .btn{color:#1b1b1f}
.theme{margin-top:32px}.theme h2{font-size:20px;margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid var(--divider)}
.ch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px}
.ch-card{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;padding:14px 16px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft);color:var(--t1);transition:border-color .2s}
.ch-card:hover{border-color:var(--brand-1);text-decoration:none}
.ch-no{grid-row:span 2;font-weight:700;color:var(--brand-1);min-width:22px}
.ch-t{font-weight:600;line-height:1.4}.ch-m{color:var(--t3);font-size:13px}
.gbar{grid-column:1/-1;display:flex;height:4px;border-radius:2px;overflow:hidden;background:var(--bg-mute);margin-top:6px}
.gbar i{display:block}.gbar .gA{background:var(--green-1)}.gbar .gB{background:var(--yellow-1)}.gbar .gC{background:var(--gray-1)}
.results{margin-top:8px}.res-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.res-list a{display:block;padding:12px 16px;border:1px solid var(--divider);border-radius:10px;color:var(--t1)}.res-list a:hover{border-color:var(--brand-1);text-decoration:none}
.res-list .rt{font-weight:600}.res-list .rs{color:var(--t2);font-size:14px;margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.res-list .rm{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
/* bộ lọc */
.filters{margin:8px 0 16px;padding:12px 16px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft)}
.filters summary{cursor:pointer;font-weight:600;min-height:28px}.fcount{color:var(--brand-1)}
.fg{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:10px}.fl{flex:0 0 120px;color:var(--t3);font-size:13px}
.chip{min-height:32px;padding:0 12px;border:1px solid var(--divider);border-radius:16px;background:var(--bg);color:var(--t2);font-size:13px;cursor:pointer}
.chip:hover{border-color:var(--brand-1)}.chip[aria-pressed=true]{background:var(--brand-soft);border-color:var(--brand-1);color:var(--brand-1);font-weight:600}
.link-btn{margin-top:10px;border:0;background:none;color:var(--brand-1);cursor:pointer;padding:6px 0}
.showing{color:var(--t2);font-size:14px}
/* trang chương */
.crumbs{font-size:13px;color:var(--t3);margin-bottom:8px}
.ch-head h1{font-size:30px;line-height:1.25;margin:0;letter-spacing:-.01em}
.meta{display:flex;flex-wrap:wrap;gap:6px 16px;color:var(--t3);font-size:13px;margin:8px 0 16px}
#ch-progress{color:var(--green-1);font-weight:600}
.intro{color:var(--t2)}.intro strong{color:var(--t1)}
.xref{border-bottom:1px dotted var(--brand-1)}.xref:hover{text-decoration:none}
.items{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;margin-top:8px}
.card{min-width:0;overflow-wrap:anywhere;padding:20px 22px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft);scroll-margin-top:calc(var(--nav-h) + 12px)}
.card:target{border-color:var(--brand-1);box-shadow:0 0 0 3px var(--brand-soft)}
.card.is-done{opacity:.72}.card.is-done .card-h .card-t{text-decoration:line-through;text-decoration-color:var(--t3)}
.card-h{display:flex;gap:12px;align-items:baseline}.card-h .no{color:var(--t3);font-weight:600;min-width:20px}

.badges{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 12px}
.badge{display:inline-block;padding:1px 8px;border-radius:6px;background:var(--gray-soft);color:var(--t2);font-size:12px;font-weight:500;line-height:20px}
.badge.gA{background:var(--green-soft);color:var(--green-1)}.badge.gB{background:var(--yellow-soft);color:var(--yellow-1)}.badge.gC{background:var(--gray-soft);color:var(--gray-1)}
.badge.gain-big{background:var(--brand-soft);color:var(--brand-1)}
.plain{margin:0 0 12px;padding:12px 16px;border-inline-start:3px solid var(--brand-1);border-radius:8px;background:var(--brand-soft);color:var(--t1)}
.fields{margin:0;display:grid;grid-template-columns:minmax(0,1fr);gap:6px}
.row{display:grid;grid-template-columns:110px minmax(0,1fr);gap:12px;font-size:15px}
.row dt{color:var(--t3);font-size:13px;padding-top:2px}.row dd{margin:0;color:var(--t2);overflow-wrap:anywhere}
.r-addon dd{color:var(--t1)}
.from{display:block;margin-top:4px;color:var(--t3);font-size:12px}
.notice{margin:0 0 10px;padding:8px 12px;border-radius:8px;background:var(--yellow-soft);color:var(--yellow-1);font-size:13px}
.extra{margin-top:12px}
.box{margin:0;padding:12px 16px;border-radius:8px;border:1px solid var(--divider);background:var(--bg);font-size:15px}
.box p{margin:0 0 6px}.box ul{margin:0;padding-inline-start:20px}
.src{margin-top:12px;border-top:1px solid var(--divider);padding-top:10px;font-size:14px}
.src summary{cursor:pointer;color:var(--t2);min-height:28px}.src ol{margin:8px 0 0;padding-inline-start:20px;color:var(--t2)}.src li{margin-bottom:6px;overflow-wrap:anywhere}
.acts{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.act{min-height:34px;padding:0 10px;border:1px solid var(--divider);border-radius:8px;background:var(--bg);color:var(--t2);font-size:13px;cursor:pointer}
.act:hover{border-color:var(--brand-1);color:var(--brand-1)}.act[aria-pressed=true]{background:var(--green-soft);border-color:var(--green-1);color:var(--green-1)}
.act[data-act=save][aria-pressed=true]{background:var(--yellow-soft);border-color:var(--yellow-1);color:var(--yellow-1)}
.card[hidden]{display:none}
.tail{margin-top:24px;color:var(--t2)}
.tbl{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border:1px solid var(--divider);padding:8px 10px;text-align:start;vertical-align:top}th{background:var(--bg-alt)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:32px}
.pg{display:block;padding:12px 16px;border:1px solid var(--divider);border-radius:10px;color:var(--brand-1);font-weight:600}.pg small{display:block;color:var(--t3);font-weight:400}
.pg.next{text-align:end}.pg:hover{border-color:var(--brand-1);text-decoration:none}
.foot{margin-top:48px;padding-top:20px;border-top:1px solid var(--divider);color:var(--t3);font-size:13px}
/* tìm kiếm */
.search-dlg{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.45);display:flex;justify-content:center;padding:64px 16px 16px}
.search-dlg[hidden]{display:none}
.search-box{width:min(640px,100%);max-height:80vh;display:flex;flex-direction:column;background:var(--bg);border-radius:12px;box-shadow:0 24px 48px rgba(0,0,0,.25);overflow:hidden}
.search-in{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--divider);color:var(--t3)}
.search-in input{flex:1;border:0;background:none;color:var(--t1);font:inherit;font-size:17px;outline:none;min-width:0}
.search-hint{margin:6px 16px 0;color:var(--t3);font-size:12px}
.search-res{list-style:none;margin:0;padding:8px;overflow-y:auto}
.search-res a{display:block;padding:10px 12px;border-radius:8px;color:var(--t1)}.search-res a:hover,.search-res a.sel{background:var(--brand-soft);text-decoration:none}
.search-res .rt{font-weight:600}.search-res .rs{color:var(--t2);font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.search-res mark{background:rgba(234,179,8,.32);color:inherit}
.toast{position:fixed;bottom:24px;inset-inline-start:50%;transform:translateX(-50%);padding:8px 16px;border-radius:8px;background:var(--t1);color:var(--bg);font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:60}
[dir=rtl] .toast{transform:translateX(50%)}
.toast.show{opacity:1}
.scrim{display:none}
/* trang chọn ngôn ngữ */
.is-root{background:var(--bg-alt)}
.root{max-width:760px;margin:0 auto;padding:56px 16px;text-align:center}
.root h1{font-size:36px;margin:12px 0 4px}.root .sub{color:var(--t2)}
.root-langs{list-style:none;padding:0;margin:32px 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;text-align:start}
.root-langs a{display:grid;gap:2px;padding:16px;border:1px solid var(--divider);border-radius:12px;background:var(--bg);color:var(--t1)}
.root-langs a:hover{border-color:var(--brand-1);text-decoration:none}.root-langs span{color:var(--t2);font-size:14px}.root-langs small{color:var(--t3)}
.root-langs .suggest a{border-color:var(--brand-1);box-shadow:0 0 0 3px var(--brand-soft)}
.root-foot{color:var(--t3);font-size:13px}
/* màn hình hẹp */
@media (max-width:1200px){.icon-btn .lbl{display:none}}
@media (max-width:960px){
  html.side-hidden .side{display:none}
  .side{position:fixed;top:var(--nav-h);inset-inline-start:0;z-index:40;height:calc(100vh - var(--nav-h));display:none;box-shadow:0 0 24px rgba(0,0,0,.2);width:min(var(--side-w),85vw)}
  body.side-open .side{display:block!important}
  .side-resize{display:none}
  body.side-open .scrim{display:block;position:fixed;inset:var(--nav-h) 0 0;z-index:35;background:rgba(0,0,0,.35)}
  .main{padding:24px 16px 48px}
}
@media (max-width:640px){
  .search-btn .ph,.search-btn kbd,.brand span{display:none}
  .search-btn{margin-inline-start:4px}
  .hero h1{font-size:28px}.ch-head h1{font-size:24px}
  .row{grid-template-columns:minmax(0,1fr);gap:0}.fl{flex-basis:100%}
  .start{flex-direction:column;align-items:flex-start}
  .card{padding:16px}
  .act span{display:none}.act{min-width:40px;min-height:40px}
  .pager{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.nav,.side,.acts,.filters,.pager,.foot{display:none}.main{padding:0}.card{break-inside:avoid}}

/* trang chủ: lối tắt */
.quick{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:12px;margin-top:24px}
.qcard{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;align-items:start;padding:16px 18px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft);color:var(--t1)}
.qcard svg{grid-row:span 2;color:var(--brand-1);margin-top:3px}.qcard span{color:var(--t2);font-size:14px}.qcard:hover{border-color:var(--brand-1);text-decoration:none}
.start-b{display:flex;flex-wrap:wrap;gap:8px}.btn-2{background:var(--bg);color:var(--brand-1);border:1px solid var(--brand-1)}html.dark .btn-2{color:var(--brand-1)}
.badge.upd-new{background:var(--red-soft);color:var(--red-1)}.badge.upd-upd{background:var(--brand-soft);color:var(--brand-1)}
.lead{color:var(--t2);font-size:1.05em}
/* công cụ */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:10px;margin:12px 0 24px}
.tool{display:grid;gap:2px;text-align:start;padding:12px 14px;border:1px solid var(--divider);border-radius:10px;background:var(--bg-soft);color:var(--t1);cursor:pointer;font:inherit}
.tool b{font-size:.95em}.tool span{color:var(--t3);font-size:.8em}.tool:hover{border-color:var(--brand-1)}
.adv>summary{cursor:pointer;list-style:none}.adv>summary h2{display:inline}.adv>summary::before{content:"▸ ";color:var(--t3)}.adv[open]>summary::before{content:"▾ "}
h2 small{color:var(--t3);font-weight:400;font-size:.7em}
.tool-frame{position:relative;flex:1;border-radius:12px;overflow:hidden;background:var(--bg)}.tool-frame iframe{width:100%;height:100%;border:0}
.tool-x{position:absolute;top:8px;inset-inline-end:8px;z-index:2;width:40px;height:40px;border-radius:20px;border:1px solid var(--divider);background:var(--bg);cursor:pointer;font-size:16px}
/* tự kiểm tra */
.sc{display:grid;gap:16px;margin-top:16px}.sc-g{padding:16px 18px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft)}.sc-g h2{margin:0 0 8px;font-size:1.1em}
.sc-q{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;padding:10px 0;border-top:1px solid var(--divider)}.sc-q:first-of-type{border-top:0}
.sc-t{flex:1 1 320px;min-width:0}.sc-t small{display:block;color:var(--t3)}.sc-l{margin-inline-start:8px;font-size:.8em;color:var(--t3)}
.sc-b{display:inline-flex;flex-wrap:wrap;gap:6px}.sc-b button{min-height:34px;padding:0 12px;border:1px solid var(--divider);border-radius:17px;background:var(--bg);cursor:pointer;font-size:.85em}
.sc-b button[aria-pressed=true][data-v=y]{background:var(--green-soft);border-color:var(--green-1);color:var(--green-1)}.sc-b button[aria-pressed=true][data-v=n]{background:var(--red-soft);border-color:var(--red-1);color:var(--red-1)}.sc-b button[aria-pressed=true]{background:var(--brand-soft);border-color:var(--brand-1);color:var(--brand-1)}
.sc-b input{width:90px;min-height:34px;padding:0 10px;border:1px solid var(--divider);border-radius:8px;background:var(--bg);color:var(--t1);font:inherit}
.sc-q.a-y .sc-t{color:var(--t3)}.sc-res{padding:18px 20px;border:2px solid var(--brand-1);border-radius:12px}.sc-res h2{margin-top:0}.sc-score{font-size:1.3em;font-weight:700}.sc-res li{margin-bottom:8px}.sc-res small{display:block;color:var(--t3)}.sc-act{display:flex;flex-wrap:wrap;gap:8px}
/* đăng nhập + thanh quản trị */
.login-box{padding:20px;gap:8px;display:grid}.login-box h2{margin:0}.login-box label{font-size:13px;color:var(--t2)}
.login-box input{min-height:44px;padding:0 12px;border:1px solid var(--divider);border-radius:8px;background:var(--bg);color:var(--t1);font:inherit;font-size:16px}
.lg-msg{min-height:20px;color:var(--t2);font-size:14px;margin:0}.lg-act{display:flex;justify-content:flex-end;gap:8px}
.admin-bar{position:fixed;bottom:calc(12px + env(safe-area-inset-bottom,0px));inset-inline-end:12px;z-index:60;display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;max-width:calc(100vw - 24px);padding:8px 12px;border:1px solid var(--divider);border-radius:14px;background:var(--bg-elv);box-shadow:0 12px 32px rgba(0,0,0,.18);font-size:13px}
.admin-bar.is-admin{border-color:var(--brand-1)}.ab-who{color:var(--t2)}.ab-btn{min-height:32px;padding:0 12px;border:1px solid var(--divider);border-radius:16px;background:var(--bg);color:var(--t1);cursor:pointer;display:inline-flex;align-items:center;font-size:13px}
.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer}.switch input{position:absolute;opacity:0}.switch span{width:36px;height:20px;border-radius:10px;background:var(--divider);position:relative;transition:background .2s}
.switch span::after{content:"";position:absolute;top:2px;inset-inline-start:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .2s}.switch input:checked+span{background:var(--green-1)}.switch input:checked+span::after{transform:translateX(16px)}[dir=rtl] .switch input:checked+span::after{transform:translateX(-16px)}.switch input:focus-visible+span{outline:2px solid var(--brand-1);outline-offset:2px}
.live-edit [data-ed]{outline:1px dashed var(--yellow-1);outline-offset:3px;border-radius:4px;cursor:text}.live-edit [data-ed]:hover{background:var(--yellow-soft)}
.live-edit [data-ed]:focus{outline:2px solid var(--brand-1);background:var(--bg)}.ed-raw{white-space:pre-wrap;font-family:var(--mono);font-size:.88em}.ed-saving{opacity:.5}
@media (max-width:640px){.tool-dlg{padding:0}.tool-frame{border-radius:0}.admin-bar{inset-inline:8px}}
.tool-frame::before{content:"…";position:absolute;inset:0;display:grid;place-items:center;font-size:32px;color:var(--t3);animation:blink 1s infinite alternate}
.tool-frame iframe{position:relative}
@keyframes blink{from{opacity:.3}to{opacity:1}}
@media (max-width:640px){
  .nav{gap:2px;padding-inline:8px}.icon-btn{min-width:36px}
  #random-btn,.nav-r a.icon-btn{display:none}
  .lang-code{display:none}
  .disp .pop-body{min-width:min(300px,calc(100vw - 24px));inset-inline-end:-80px}
}
.btn{max-width:100%;white-space:normal;line-height:1.3;padding-block:8px;text-align:center}
@media (max-width:640px){.admin-bar:not(.open) .ab-who,.admin-bar:not(.open) .ab-btn{display:none}.admin-bar:not(.open){inset-inline-start:auto;padding:6px 10px}}

/* ---------- đợt 3: thanh công cụ, icon màu nhạt, hộp thoại, người biên soạn ---------- */
.logo-mark{color:#10141A;flex:none}html.dark .logo-mark{color:#E6E9ED}
.brand span{font-weight:650;letter-spacing:-.01em}
.search-btn{flex:0 1 300px;justify-content:flex-start}.search-btn kbd{margin-inline-start:auto}
.toolbar{flex:1 1 auto;min-width:0;max-width:640px;display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;padding:0 4px;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 12px,#000 calc(100% - 12px),transparent);mask-image:linear-gradient(90deg,transparent 0,#000 12px,#000 calc(100% - 12px),transparent)}
.toolbar::-webkit-scrollbar{display:none}
.tb{flex:none;display:inline-grid;place-items:center;width:36px;height:36px;border:0;border-radius:9px;background:none;cursor:pointer;
  color:oklch(.58 .07 var(--h));transition:background .15s,color .15s}
html.dark .tb{color:oklch(.78 .06 var(--h))}
.tb:hover,.tb:focus-visible{background:oklch(.6 .08 var(--h) / .12);color:oklch(.5 .13 var(--h));text-decoration:none}
html.dark .tb:hover,html.dark .tb:focus-visible{color:oklch(.85 .1 var(--h))}
.tb-sep{flex:none;width:1px;height:20px;background:var(--divider);margin:0 6px}
.nav-r{margin-inline-start:0;flex:none}
.icon-btn svg,.tb svg{width:18px;height:18px}
/* nút thao tác trên đầu thẻ */
.card-h{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:12px}
.card-h .acts{display:flex;gap:2px;margin:0;opacity:.55;transition:opacity .15s}
.card:hover .acts,.card:focus-within .acts,.card.cur .acts{opacity:1}
@media (hover:none){.card-h .acts{opacity:1}}
.act{display:inline-grid;place-items:center;width:34px;height:34px;min-height:0;padding:0;border:1px solid transparent;border-radius:8px;background:none;color:var(--t3)}
.act svg{width:17px;height:17px}.act:hover{border-color:var(--divider);color:var(--brand-1);background:var(--bg)}
.act[data-act=done][aria-pressed=true]{background:var(--green-soft);border-color:transparent;color:var(--green-1)}
.act[data-act=save][aria-pressed=true]{background:var(--yellow-soft);border-color:transparent;color:var(--yellow-1)}
.act[data-act=save][aria-pressed=true] svg{fill:currentColor}
.act[data-act=listen].on{color:var(--brand-1);background:var(--brand-soft)}
.card.cur{border-color:color-mix(in srgb,var(--brand-1) 45%,var(--divider))}
.badge.vn{background:var(--red-soft);color:var(--red-1)}
.alt{margin-top:12px;border-top:1px dashed var(--divider);padding-top:10px;font-size:.92em}.alt>summary{cursor:pointer;color:var(--t2)}.alt .fields{margin-top:8px;opacity:.85}
/* hộp thoại dùng chung (native dialog) */
.dlg{border:1px solid var(--divider);border-radius:14px;padding:0;background:var(--bg-elv);color:var(--t1);width:min(440px,calc(100vw - 32px));max-height:calc(100vh - 48px);box-shadow:0 24px 60px rgba(0,0,0,.35)}
.dlg::backdrop{background:rgba(0,0,0,.5);backdrop-filter:blur(2px)}
.dlg-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px 0}.dlg-head h2{margin:0;font-size:1.15rem}
.dlg-x{display:inline-grid;place-items:center;width:36px;height:36px;border:0;border-radius:18px;background:var(--bg-mute);color:var(--t2);cursor:pointer}.dlg-x:hover{color:var(--t1)}
.dlg-hint{margin:8px 20px 4px;color:var(--t2);font-size:14px}
.login-form{display:grid;gap:8px;padding:16px 20px 20px;box-sizing:border-box}.login-form .dlg-head{padding:0}.login-form .dlg-hint{margin:0 0 6px}
.login-form label{font-size:13px;color:var(--t2)}#lg-step2{display:grid;gap:8px}#lg-step2[hidden]{display:none}
.login-form input{box-sizing:border-box;min-height:44px;padding:0 12px;border:1px solid var(--divider);border-radius:10px;background:var(--bg);color:var(--t1);font:inherit;font-size:16px;width:100%}
.login-form input:focus{outline:2px solid var(--brand-1);outline-offset:1px}
.lg-msg{min-height:20px;margin:0;color:var(--t2);font-size:14px}.dlg-act{display:flex;justify-content:flex-end;gap:8px}
.keys{margin:12px 0 0;padding:0 20px 20px;display:grid;gap:2px;max-height:70vh;overflow:auto}
.keys div{display:grid;grid-template-columns:150px 1fr;gap:12px;align-items:center;padding:6px 0;border-bottom:1px solid var(--divider)}.keys dd{margin:0;color:var(--t2);font-size:14px}
.keys kbd{display:inline-block;min-width:22px;padding:1px 6px;border:1px solid var(--divider);border-bottom-width:2px;border-radius:6px;background:var(--bg);font:12px var(--mono);color:var(--t1);text-align:center}
.dlg-full{width:calc(100vw - 48px);height:calc(100vh - 48px);max-width:none;max-height:none}
.dlg-full .tool-frame{position:relative;width:100%;height:100%;border-radius:0}
.tool-x{position:absolute;top:10px;inset-inline-end:10px;z-index:3;border:1px solid var(--divider);background:var(--bg-elv)}
@media (max-width:640px){.dlg-full{width:100vw;height:100vh;border-radius:0}.keys div{grid-template-columns:110px 1fr}}
/* người biên soạn */
.author{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;margin-top:40px;padding:20px 22px;border:1px solid var(--divider);border-radius:14px;background:var(--bg-soft)}
.au-mark{width:56px;height:56px;border-radius:14px;background:#111317;display:grid;place-items:center}.au-mark .logo-mark{color:#E6E9ED;width:38px;height:38px}
.au-k{margin:0;color:var(--t3);font-size:12px;text-transform:uppercase;letter-spacing:.08em}.author h2{margin:2px 0 2px;font-size:1.3em}.author h2 a{color:var(--t1)}
.au-role{margin:0 0 8px;color:var(--brand-1);font-weight:600;font-size:.92em}.au-role span{color:var(--t2);font-weight:400}
.author p{margin:0 0 8px;color:var(--t2)}.au-links{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0!important}
.author.big{margin:0 0 28px}
@media (max-width:760px){.toolbar{display:none}}
@media (max-width:640px){#keys-btn{display:none}.author{grid-template-columns:1fr}}
.brand{flex:none}.search-btn{min-width:44px}
.search-btn .ph{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}@media (max-width:1180px){.search-btn{flex-basis:200px}}
.dlg{overflow:hidden auto}
@media (max-width:640px){.card-h{grid-template-columns:auto minmax(0,1fr)}.card-h .acts{grid-column:1/-1;justify-content:flex-end;margin-top:-4px;opacity:1}.act{width:40px;height:40px}}
/* ---------- đợt 4: bố cục 3 vùng (danh mục | nội dung | bộ lọc), kéo vị trí và độ rộng ---------- */
:root{--rail-w:300px;--main-w:960px}
.layout{display:flex;align-items:flex-start;max-width:none;margin:0}
.side{order:0}.main{order:2;margin:0;flex:1 1 auto;min-width:0;max-width:var(--main-w);position:relative;padding:32px 40px 64px}
.rail{order:3;flex:0 0 var(--rail-w);position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));overflow-y:auto;overscroll-behavior:contain;padding:20px 16px 40px;border-inline-start:1px solid var(--divider)}
html[data-side=right] .side{order:4;border-inline-end:0;border-inline-start:1px solid var(--divider)}
html[data-rail=left] .rail{order:1;border-inline-start:0;border-inline-end:1px solid var(--divider)}
html[data-width=full]{--main-w:100%}
.main-resize{position:absolute;top:0;bottom:0;inset-inline-end:-3px;width:6px;cursor:col-resize;z-index:2}.main-resize:hover,.side-resize:hover{background:var(--brand-soft)}
.panel-grip{cursor:grab;user-select:none;color:var(--t3);font-size:14px;letter-spacing:-2px;padding:2px 6px;border-radius:6px;line-height:1}.panel-grip:hover{background:var(--bg-mute);color:var(--t1)}
body.dragging,body.dragging *{cursor:grabbing!important;user-select:none}
.drop-hint{position:fixed;top:var(--nav-h);bottom:0;width:30vw;z-index:45;background:var(--brand-soft);border:2px dashed var(--brand-1);pointer-events:none;display:none}
body.dragging .drop-hint{display:block}.drop-hint.l{left:0}.drop-hint.r{right:0}.drop-hint.on{background:color-mix(in srgb,var(--brand-1) 22%,transparent)}
.side-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.side-top .side-h{margin:0}
/* bộ lọc trong cột phải: luôn mở, nhóm xếp dọc */
.rail .filters{margin:0;padding:0;border:0;background:none}
.rail .filters>summary{list-style:none;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--t3);margin:6px 0 8px;pointer-events:none}
.rail .filters>summary::-webkit-details-marker{display:none}
.rail .fg{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}.rail .fl{flex:0 0 100%;font-size:12px;color:var(--t2);font-weight:600}
.rail .chip{min-height:30px;font-size:12.5px}
.rail-in{display:grid;gap:4px}.rail .panel-grip{justify-self:end}
@media (max-width:1279px){
  .rail{position:fixed;top:auto;height:auto;bottom:calc(16px + env(safe-area-inset-bottom,0px));inset-inline-end:16px;z-index:55;width:auto;max-width:min(380px,calc(100vw - 32px));padding:0;border:1px solid var(--divider)!important;border-radius:14px;background:var(--bg-elv);box-shadow:0 12px 32px rgba(0,0,0,.2);overflow:visible}
  .rail .panel-grip{display:none}
  .rail .filters>summary{pointer-events:auto;cursor:pointer;margin:0;padding:10px 16px;font-size:13px;text-transform:none;letter-spacing:0;color:var(--t1);font-weight:600}
  .rail .filters[open]{max-height:70vh;overflow:auto;padding:0 16px 12px}.rail .filters[open]>summary{padding-inline:0}
  .main-resize{display:none}
}
@media (max-width:960px){.side .panel-grip{display:none}}
/* icon phóng nhẹ khi rê chuột */
.tb,.icon-btn,.act,.dlg-x{transition:transform .15s ease,background .15s,color .15s}
.tb:hover,.icon-btn:hover,.act:hover,.dlg-x:hover{transform:scale(1.14)}.tb:active,.icon-btn:active,.act:active{transform:scale(.96)}
@media (prefers-reduced-motion:reduce){.tb:hover,.icon-btn:hover,.act:hover,.dlg-x:hover{transform:none}}
/* phân cấp chữ trong danh mục */
.side-h{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--t3);font-weight:600}
.side-all{color:var(--brand-1)!important;font-weight:600}.side-x{color:var(--t1)!important;font-weight:500}
.side-ch>li>a{color:var(--t1);font-weight:500}.side-ch>li>a .cnt{font-variant-numeric:tabular-nums;color:var(--t3);font-weight:400}
.side-ch>li.on>a{color:var(--brand-1);font-weight:650}
.side-items a{color:var(--t2);font-size:.92em}.side-items .no{color:var(--t3);font-variant-numeric:tabular-nums}
.side-items a.cur{color:var(--brand-1);font-weight:500}.side-items a.cur .no{color:var(--brand-1)}
.side-about{color:var(--t3)!important;font-weight:400}
/* thanh admin gọn, nằm trên vùng danh mục, không đè nội dung */
.admin-bar{left:12px;right:auto;bottom:12px;max-width:calc(var(--side-w) - 24px);padding:6px 10px;gap:4px 8px;font-size:12px;border-radius:12px}
[dir=rtl] .admin-bar{right:12px;left:auto}
html[data-side=right] .admin-bar{right:12px;left:auto}
.admin-bar .ab-who{flex:0 0 100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ab-btn{min-height:28px;padding:0 10px;font-size:12px}.admin-bar .switch span{width:30px;height:17px}.admin-bar .switch span::after{width:13px;height:13px}.admin-bar .switch input:checked+span::after{transform:translateX(13px)}
.side{padding-bottom:110px}
/* tô sáng chữ khớp khi tìm */
.search-res mark,.res-list mark{background:color-mix(in srgb,var(--yellow-1) 30%,transparent);color:inherit;border-radius:3px;padding:0 1px}
/* màu liên kết và khung "nói dễ hiểu" lấy từ biến riêng (mặc định theo màu nhấn) */
a{color:var(--link,var(--brand-1))}
.plain{background:var(--plain-bg,var(--brand-soft));border-inline-start-color:var(--plain-bd,var(--brand-1))}
html[data-icons=accent] .tb{color:var(--brand-1)}html[data-icons=mono] .tb{color:var(--t2)}
/* hộp cấu hình giao diện */
.dlg-theme{width:min(520px,calc(100vw - 32px))}
.th-body{padding:12px 20px 20px;display:grid;gap:12px}
.th-row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.th-row>span{font-size:13px;color:var(--t2);font-weight:600}
.th-row.col{flex-direction:column;align-items:stretch;gap:6px}
.th-hues{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.th-dot{width:26px;height:26px;border-radius:50%;border:2px solid var(--bg-elv);box-shadow:0 0 0 1px var(--divider);cursor:pointer;padding:0;transition:transform .15s}
.th-dot:hover{transform:scale(1.15)}.th-dot[aria-pressed=true]{box-shadow:0 0 0 2px var(--t1)}
.th-pill{min-height:28px;padding:0 10px;border:1px solid var(--divider);border-radius:14px;background:var(--bg);font-size:12px;cursor:pointer;color:var(--t2)}.th-pill[aria-pressed=true]{border-color:var(--brand-1);color:var(--brand-1);background:var(--brand-soft)}
.th-custom input{width:120px;accent-color:var(--brand-1)}
.th-parts>summary{cursor:pointer;font-weight:600;font-size:14px;margin-bottom:8px}.th-parts{display:grid;gap:12px}.th-parts[open]{padding-bottom:4px}
.th-prev{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px;border:1px solid var(--divider);border-radius:10px;background:var(--bg)}.th-prev .plain{flex:1 1 100%;margin:4px 0 0;padding:8px 12px;font-size:13px}
.dlg-theme .steps button{min-height:32px}
/* ---------- đợt 5: MonoBlack × Golden Signal, lấy có chọn lọc từ FE Bách khoa ---------- */
:root{--bg:#fff;--bg-alt:#f7f7f6;--bg-soft:#f7f7f6;--bg-mute:#efefed;--bg-elv:#fff;--divider:#e4e3df;--t1:#1b1a17;--t2:#55524b;--t3:#807c73;--brand-1:#7d5e2e;--brand-2:#8A6836;--brand-soft:rgba(138,104,54,.12)}
html.dark{--bg:#040404;--bg-alt:#0B0B0C;--bg-soft:#0B0B0C;--bg-mute:#111214;--bg-elv:#111214;--divider:#242428;--t1:#F2EFE9;--t2:#B2ADA4;--t3:#8B877F;--brand-1:#C8A86B;--brand-2:#D7BC86;--brand-soft:rgba(200,168,107,.12)}
html.dark .btn{color:#11100D}
.search-btn:hover,.chip:hover{border-color:var(--brand-1)}
/* hero */
.hero h1{font-size:clamp(34px,4.6vw,56px);letter-spacing:-.035em;line-height:1.08;margin:0 0 12px}
.cv-gold{background:linear-gradient(110deg,#8A6836 0%,#C8A86B 32%,#E2CEA0 48%,#D7BC86 57%,#A6844B 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero h1 .cv-gold{-webkit-box-decoration-break:clone;box-decoration-break:clone}
html:not(.dark) .hero h1 .cv-gold{background:none;color:var(--brand-1)}
.eyebrow{display:flex;align-items:center;gap:12px;margin:0 0 12px;color:var(--brand-1);font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}.eyebrow::before{content:"";width:36px;height:1px;background:var(--brand-1)}
.hero .tag{font-size:clamp(16px,1.4vw,19px);color:var(--t2);font-weight:400;max-width:62ch;margin:0 0 18px}
.hero-search{display:flex;align-items:center;gap:12px;width:100%;max-width:760px;min-height:54px;padding:0 16px;border:1px solid var(--brand-1);border-radius:12px;background:var(--bg-soft);color:var(--t3);font-size:16px;cursor:pointer;text-align:start;transition:background .15s}.hero-search:hover{background:var(--bg-mute)}.hero-search kbd{margin-inline-start:auto}
.hero-chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0 0;color:var(--t3);font-size:13px}.hchip{min-height:32px;padding:0 13px;border:1px solid var(--divider);border-radius:16px;background:none;color:var(--t2);font-size:13px;cursor:pointer}.hchip:hover{border-color:var(--brand-1);color:var(--t1)}
.hero .stats{margin-top:18px}
.hero-more{margin-top:10px;color:var(--t2);font-size:14px;max-width:70ch}.hero-more summary{cursor:pointer;color:var(--t3)}
.quick{grid-template-columns:repeat(auto-fit,minmax(min(100%,190px),1fr));gap:10px;margin-top:22px}
.qcard{align-items:center;min-height:62px;padding:12px 14px;font:inherit;text-align:start;cursor:pointer;width:100%}.qcard svg{grid-row:span 2;margin:0}.qcard b{font-size:14px;font-weight:600}.qcard span{font-size:12.5px;color:var(--t3)}
/* tiêu đề mục có vạch vàng */
.sec-h,.theme h2{position:relative;padding-inline-start:13px;border:0;font-size:20px;letter-spacing:-.015em;margin:0 0 14px;padding-bottom:0}.sec-h::before,.theme h2::before{content:"";position:absolute;inset-inline-start:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--brand-1)}
#themes>.sec-h{margin-top:32px}
.theme h2{font-size:16px;color:var(--t2);font-weight:600}.theme{margin-top:26px}
.doms{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));gap:10px}
.dom{position:relative;overflow:hidden;display:grid;gap:3px;padding:14px 16px;min-height:88px;border:1px solid var(--divider);border-radius:12px;background:var(--bg-soft);color:var(--t1);transition:border-color .15s}.dom:hover{border-color:var(--brand-1);text-decoration:none}
.dom-i{color:var(--t2)}.dom b{font-size:14.5px;font-weight:600;position:relative}.dom-d{position:relative;color:var(--t3);font-size:12.5px;max-width:82%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.dom-ghost{position:absolute;inset-inline-end:-6px;bottom:-10px;color:var(--t3);opacity:.14}
.grid-tools{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:32px}.grid-tools .sec-h{margin:0}
.cols-pick{display:inline-flex;align-items:center;gap:8px;color:var(--t3);font-size:13px}.cols-pick select{min-height:34px;padding:0 8px;border:1px solid var(--divider);border-radius:8px;background:var(--bg-soft);color:var(--t1);font:inherit}
/* bìa 2:1, chữ là HTML thật */
.ch-grid{grid-template-columns:repeat(var(--cols,3),minmax(0,1fr));gap:18px 14px}
.cv-card{min-width:0}
.cv{position:relative;display:block;aspect-ratio:2/1;overflow:hidden;border-radius:12px;background:#040404;border:1px solid #242428;container-type:inline-size;color:#F2EFE9;transition:border-color .15s}a.cv:hover{border-color:#C8A86B;text-decoration:none}
.cv img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
[dir=rtl] .cv img{transform:scaleX(-1)}
.cv-text{position:absolute;inset:8% 7%;display:flex;flex-direction:column;justify-content:center;gap:1.6cqi;max-width:76%}
.cv-eye{margin:0;color:#E2CEA0;font-size:clamp(11px,3.1cqi,14px);letter-spacing:.01em}
.cv-title{margin:0;color:#F2EFE9;font-weight:650;letter-spacing:-.02em;line-height:1.12;text-wrap:balance}
.cv-title[data-len=s]{font-size:clamp(17px,9.6cqi,42px)}.cv-title[data-len=m]{font-size:clamp(15px,7.6cqi,34px)}.cv-title[data-len=l]{font-size:clamp(14px,6.3cqi,28px)}.cv-title[data-len=xl]{font-size:clamp(13px,5.3cqi,24px)}
@container (max-width:230px){.cv-eye{display:none}.cv-title[data-len]{font-size:13px;line-height:1.16}}
.cv-meta{display:grid;gap:6px;padding:9px 2px 0;color:var(--t3);font-size:12.5px}.cv-meta .gbar{margin:0;height:3px}
/* băng bìa đầu chương */
.cv-band{aspect-ratio:4/1;margin:0 0 12px}.cv-band .cv-text{max-width:70%;inset:6% 4%}
.cv-band .cv-title[data-len]{font-size:clamp(22px,4.1cqi,40px)}.cv-band .cv-eye{font-size:13px}
.cv-band picture{display:contents}
@media (max-width:640px){.cv-band{aspect-ratio:2/1}.cv-band .cv-text{max-width:84%;inset:6% 6%}.cv-band .cv-title[data-len]{font-size:clamp(19px,6.4cqi,28px)}}
/* mục không khung, chia bằng đường mảnh */
.items{gap:0}
.card,.card:target{border:0;border-bottom:1px solid var(--divider);border-radius:0;background:none;padding:26px 4px;box-shadow:none}
.card.cur{border-color:var(--divider)}.card.cur .card-h .no,.card:target .card-h .no{color:var(--brand-1)}
.solo .card{border-bottom:0;padding-top:8px}
.plain{border-radius:0 8px 8px 0}[dir=rtl] .plain{border-radius:8px 0 0 8px}
.read-bar{position:fixed;top:0;left:0;right:0;height:2px;z-index:80;background:#C8A86B;transform:scaleX(0);transform-origin:0 50%}[dir=rtl] .read-bar{transform-origin:100% 50%}
.side-bubble{position:fixed;z-index:60;max-width:300px;padding:8px 11px;border:1px solid var(--divider);border-radius:8px;background:var(--bg-elv);color:var(--t1);font-size:13px;line-height:1.4;box-shadow:0 10px 26px rgba(0,0,0,.3);pointer-events:none;opacity:0;transition:opacity .12s}.side-bubble.on{opacity:1}
.cv-sub{display:block;margin-top:1.4cqi;color:#B2ADA4;font-size:clamp(11px,3.5cqi,15px);font-weight:400;letter-spacing:0;line-height:1.3}
@container (max-width:300px){.cv-sub{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}}
@container (max-width:230px){.cv-text{inset:5% 6%;max-width:90%}.cv-title[data-len]{font-size:12.5px;line-height:1.14}}
@container (max-width:230px){.cv-text{inset:3% 6%}}
@container (max-width:160px){.cv-title[data-len]{font-size:12px;line-height:1.12}}
/* cỡ chữ bìa: lấy chữ làm chính, chỉ giảm dần theo độ dài tiêu đề và độ hẹp của bìa */
.cv:not(.cv-band) .cv-title[data-len=s]{font-size:clamp(16px,11.4cqi,46px);line-height:1.08}
.cv:not(.cv-band) .cv-title[data-len=m]{font-size:clamp(13.5px,8.8cqi,36px);line-height:1.1}
.cv:not(.cv-band) .cv-title[data-len=l]{font-size:clamp(13px,7cqi,30px);line-height:1.12}
.cv:not(.cv-band) .cv-title[data-len=xl]{font-size:clamp(12.5px,5.8cqi,25px);line-height:1.12}
@container (max-width:160px){.cv:not(.cv-band) .cv-title[data-len=l],.cv:not(.cv-band) .cv-title[data-len=xl]{font-size:12px}.cv:not(.cv-band) .cv-title[data-len=m]{font-size:13px}.cv:not(.cv-band) .cv-title[data-len=s]{font-size:15px}}
.cv-sub{margin-top:1.8cqi}
.quick{grid-template-columns:repeat(4,minmax(0,1fr))}.qcard:not(:has(span)) b{grid-row:span 2;align-self:center}.qcard b{align-self:end}.qcard span{align-self:start;line-height:1.3}
@media (max-width:760px){.quick{grid-template-columns:repeat(2,minmax(0,1fr))}}
.doms{grid-template-columns:repeat(auto-fill,minmax(min(100%,215px),1fr))}
.dom{grid-template-columns:auto minmax(0,1fr);column-gap:9px;align-content:start;min-height:0}.dom-d{grid-column:1/-1;max-width:none}.dom-ghost{display:none}
/* thanh admin chuyển sang phải, nằm trên cột bộ lọc */
.admin-bar{left:auto;right:12px;max-width:calc(var(--rail-w) - 24px)}[dir=rtl] .admin-bar{left:12px;right:auto}html[data-side=right] .admin-bar{right:12px;left:auto}
.side{padding-bottom:48px}.rail{padding-bottom:120px}
@media (max-width:1279px){.admin-bar{bottom:64px;max-width:min(320px,calc(100vw - 24px))}}
/* trang riêng của công cụ */
.is-toolpage .main{max-width:none}
.tool-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.tool-head h1{margin:0;font-size:clamp(24px,2.4vw,32px);letter-spacing:-.02em}.tool-head .lead{margin:6px 0 0;max-width:70ch}.tool-head .btn{flex:none;display:inline-flex;align-items:center;font-size:14px}.tool-head .btn:hover{text-decoration:none}
.tool-page{height:max(560px,calc(100vh - 250px));margin-top:12px;border:1px solid var(--divider);border-radius:12px;overflow:hidden;flex:none}
a.tool{color:var(--t1)}a.tool:hover{text-decoration:none}
/* Dòng bản quyền ở danh mục và chân trang */
.side-credit{margin:12px 0 0;padding-top:12px;border-top:1px solid var(--divider);color:var(--t3);font-size:10px;line-height:1.5}.side-credit a{display:inline!important;padding:0!important;margin:0!important;font-size:inherit;color:var(--link,var(--brand-1))!important;background:none!important;border:0!important}
.foot p{font-size:10px;line-height:1.5}
.foot a.cr{font-size:4px}
/* Danh sách ngôn ngữ */
.lang-list a{display:flex;align-items:center;gap:10px}.flag{flex:0 0 auto;border-radius:2px;box-shadow:0 0 0 1px color-mix(in srgb,var(--t1) 16%,transparent)}
.related{margin-top:24px}.related h2{font-size:15px;margin:0 0 8px;border:0;padding:0}.related ul{margin:0;padding-inline-start:18px;display:grid;gap:6px;font-size:14.5px}
.sm-g{margin-top:22px}.sm-g h3{font-size:15px;margin:16px 0 6px}.sm-l{margin:0;padding-inline-start:18px;display:grid;gap:3px;font-size:13.5px}
/* Font và độ đậm */
:root{--font:"Be Vietnam Pro",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Arabic","PingFang SC","Microsoft YaHei",sans-serif}
strong,b{font-weight:700}.main strong{color:color-mix(in srgb,var(--t1) 74%,var(--t2));font-weight:600}.main .row dd,.main .plain{color:color-mix(in srgb,var(--t2) 78%,var(--t1))}del{opacity:.7}
.ed-raw{font-family:var(--font);font-size:1em;tab-size:2}
.ed-hint{position:fixed;inset-inline:0;bottom:14px;margin-inline:auto;width:max-content;max-width:calc(100vw - 24px);z-index:70;display:flex;flex-wrap:wrap;justify-content:center;gap:4px 12px;padding:8px 14px;border-radius:12px;background:var(--bg-elv);border:1px solid var(--divider);box-shadow:0 10px 30px rgb(0 0 0/.3);font-size:12px;color:var(--t2);pointer-events:none}.ed-hint kbd{font:inherit;font-weight:600;color:var(--t1)}
/* Header: chương / mục đang đọc, toolbar thu gọn dạt phải, nav-r thẳng mép rail */
.nav-ch{display:flex;align-items:center;gap:.5em;flex:0 1 auto;min-width:0;max-width:clamp(160px,38.2vw,620px);font-size:.84em}
.nav-ch a{flex:0 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;color:var(--brand-1)}
.nav-it{flex:0 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--t2)}.nav-it::before{content:"/";margin-inline-end:.5em;color:var(--t3)}
.nav-mid{flex:1 1 0;min-width:40px;position:relative;height:40px;display:flex;justify-content:flex-end;align-items:center}
.tb-exp{flex:none;display:grid;place-items:center;width:36px;height:36px;border:0;border-radius:10px;background:none;color:var(--brand-1);cursor:pointer}.tb-exp:hover{background:var(--brand-soft)}
.tb-exp svg{animation:tb-nudge 1.8s ease-in-out infinite;transition:rotate .2s}@keyframes tb-nudge{0%,100%{transform:translateX(2px)}50%{transform:translateX(-3px)}}
html[dir=rtl] .tb-exp svg{rotate:180deg}
.toolbar{position:absolute;inset-block:0;inset-inline-end:36px;flex:none;width:max-content;max-width:0;opacity:0;overflow:hidden;padding:0;background:var(--bg);border-radius:10px;-webkit-mask-image:none;mask-image:none;transition:max-width .28s ease .12s,opacity .2s ease .12s}
.nav-mid:has(.tb-exp:hover) .toolbar,.toolbar:hover,.toolbar:focus-within,.nav-mid.pinned .toolbar{max-width:min(780px,calc(100vw - 150px));opacity:1;z-index:60;padding-inline:8px;transition-delay:0s}
.nav-mid:has(.tb-exp:hover) .tb-exp svg,.nav-mid.pinned .tb-exp svg{animation:none}.nav-mid.pinned .tb-exp svg{rotate:180deg}html[dir=rtl] .nav-mid.pinned .tb-exp svg{rotate:0deg}
@media (prefers-reduced-motion:reduce){.tb-exp svg{animation:none}.toolbar{transition:none}}
@media (min-width:1280px){html[data-nr] .nav-r{flex:0 0 var(--nr-w,calc(var(--rail-w) - 16px));min-width:max-content;box-sizing:border-box;justify-content:flex-start;padding-inline-start:var(--g-m)}}
@media (max-width:1000px){.nav-ch{display:none}}
@media (max-width:760px){.nav-mid{display:none}.nav-r{margin-inline-start:auto}}
/* Màu nhẹ theo tính chất của filter và tag */
[data-tone=good]{--hc:150}[data-tone=lite]{--hc:125}[data-tone=mid]{--hc:80}[data-tone=bad]{--hc:28}[data-tone=g1]{--hc:165}[data-tone=g2]{--hc:195}[data-tone=g3]{--hc:250}[data-tone=m1]{--hc:5}[data-tone=m2]{--hc:95}[data-tone=m3]{--hc:300}[data-tone=m4]{--hc:235}[data-tone=br]{--hc:70}[data-tone=sl]{--hc:260}
.chip[data-tone],.badge[data-tone]{background:oklch(.62 .12 var(--hc)/.12);color:oklch(.42 .11 var(--hc));border-color:oklch(.62 .12 var(--hc)/.3)}
html.dark .chip[data-tone],html.dark .badge[data-tone]{background:oklch(.7 .1 var(--hc)/.14);color:oklch(.84 .08 var(--hc));border-color:oklch(.7 .1 var(--hc)/.28)}
.chip[data-tone]:hover{border-color:oklch(.6 .14 var(--hc))}
.chip[data-tone][aria-pressed=true],html.dark .chip[data-tone][aria-pressed=true]{background:oklch(.62 .14 var(--hc)/.34);border-color:oklch(.62 .14 var(--hc));font-weight:600}
/* Tooltip */
.tip-pop{position:fixed;z-index:200;max-width:300px;padding:7px 10px;border-radius:8px;background:var(--bg-elv);border:1px solid var(--divider);box-shadow:0 8px 24px rgb(0 0 0/.3);color:var(--t1);font-size:12.5px;line-height:1.45;pointer-events:none}
/* Vũ trụ Đời người */
.gs{position:relative;overflow:hidden;background:radial-gradient(circle at 50% 46%,#10131f,#05060a 70%);color:#E9E7E1;touch-action:none;user-select:none}
.gs-page{height:min(72vh,720px);border-radius:14px;margin:12px 0 8px}
.gs-c{display:block;width:100%;height:100%;cursor:grab}.gs-c.drag{cursor:grabbing}
.gs-tip{position:absolute;z-index:3;max-width:min(360px,80%);padding:6px 10px;border-radius:8px;background:rgb(14 16 26/.94);border:1px solid rgb(255 255 255/.16);font-size:13px;line-height:1.4;pointer-events:none}
.gs-leg{position:absolute;inset-inline-start:14px;bottom:12px;margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:3px 12px;max-width:calc(100% - 28px);font-size:12px;color:rgb(233 231 225/.78);pointer-events:none}.gs-leg li::before{content:"";display:inline-block;width:8px;height:8px;margin-inline-end:6px;border-radius:50%;background:hsl(var(--g) 68% 68%)}
.gs-h{position:absolute;inset-inline-start:14px;top:10px;margin:0;max-width:min(520px,calc(100% - 70px));font-size:12.5px;line-height:1.45;color:rgb(233 231 225/.68);pointer-events:none}
.graph-dlg{width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;background:#05060a;color:#E9E7E1}.graph-dlg::backdrop{background:#05060a}.graph-dlg .gs{width:100%;height:100%}
.graph-dlg h2{position:absolute;z-index:4;inset-inline-start:14px;top:10px;margin:0;font-size:18px;font-weight:700;color:#F2EFE9;border:0;padding:0}.graph-dlg .gs-h{top:42px}
.gs-x{position:absolute;z-index:4;inset-inline-end:12px;top:10px;width:40px;height:40px;border:1px solid rgb(255 255 255/.2);border-radius:50%;background:rgb(255 255 255/.08);color:inherit;font-size:20px;line-height:1;cursor:pointer}.gs-x:hover{background:rgb(255 255 255/.18)}
.gs .tip-pop,.graph-dlg .tip-pop{position:fixed}
@media (max-width:640px){.cv-band .cv-title[data-len=xl]{font-size:clamp(15px,5.2cqi,22px);line-height:1.12}.cv-band .cv-title[data-len=l]{font-size:clamp(16px,5.8cqi,24px)}}
/* Tỉ lệ vàng: một cỡ gốc theo màn hình, mọi cỡ chữ và khoảng cách là bội số của φ */
:root{--fs-main:clamp(15px,calc(12.6px + .22vw + .12vh),20px);--fs-side:calc(var(--fs-main)*.786);--g-2xs:calc(var(--fs-main)*.236);--g-xs:calc(var(--fs-main)*.382);--g-s:calc(var(--fs-main)*.618);--g-m:var(--fs-main);--g-l:calc(var(--fs-main)*1.618);--g-xl:calc(var(--fs-main)*2.618);--g-2xl:calc(var(--fs-main)*4.236);--side-w:clamp(250px,23.6vw,460px);--rail-w:clamp(310px,23.6vw,460px);--nav-h:clamp(52px,calc(var(--fs-main)*3.618),68px)}
body{line-height:1.618}.nav{gap:var(--g-s)}
.side{font-size:var(--fs-side);padding-block:var(--g-l) var(--g-xl);padding-inline:var(--g-l) var(--g-m)}
.side a{padding-block:var(--g-2xs);line-height:1.382}.side-items{margin-block:var(--g-2xs) var(--g-s)!important}
.side-items a{font-size:.886em;padding-block:calc(var(--g-2xs)*.75);padding-inline-start:var(--g-s);line-height:1.382}.side-items .no{flex:0 0 1.618em}
.main{padding:var(--g-xl) var(--g-xl) var(--g-2xl)}
@media (max-width:960px){.main{padding:var(--g-l) var(--g-m) var(--g-xl)}}
.main>h1{font-size:2.618em;line-height:1.236;margin:0 0 var(--g-s)}.main h2:not(.cv-title){line-height:1.272}.sm-g h2,.main>section>h2{font-size:1.618em}.main h3:not(.cv-title){line-height:1.382}
.card-h .card-t{font-size:1.272em;line-height:1.382}.solo .card-h .card-t{font-size:1.618em;line-height:1.272}
.plain{padding:var(--g-s) var(--g-m);margin-block-end:var(--g-s)}.main .row{font-size:.944em;gap:var(--g-s)}.main .row dt{font-size:.886em}
.badges{gap:var(--g-xs);margin-block:var(--g-s)}.badge{font-size:.786em;padding:.146em .618em;line-height:1.618}
.crumbs,.meta{font-size:.786em}.meta{gap:var(--g-xs) var(--g-m)}
html.side-hidden .layout{justify-content:center}html.side-hidden .main{flex:0 1 var(--main-w)}
/* Bộ lọc: chữ nhỏ, mỗi cụm một dòng */
.rail{padding:var(--g-m)}.rail .fg{gap:var(--g-xs);margin:0 0 var(--g-s)}.rail .fl{font-size:calc(var(--fs-main)*.696)}
.rail .chip{font-size:calc(var(--fs-main)*.66*var(--fz,1));min-height:calc(var(--fs-main)*1.618);padding:0 calc(var(--fs-main)*.42*var(--fz,1));white-space:nowrap}
/* Tay kéo cột luôn nằm đúng mép, không trôi theo cuộn */
.side-resize,.rail-resize{position:fixed;top:var(--nav-h);bottom:0;width:8px;inset-inline:auto;z-index:35;cursor:col-resize}.side-resize:hover,.rail-resize:hover,.resizing .side-resize,.resizing .rail-resize{background:var(--brand-soft)}.side-resize[hidden],.rail-resize[hidden]{display:none}.resizing{user-select:none;cursor:col-resize}
@media (max-width:1279px){.rail-resize{display:none}}
/* Thẻ công cụ mỗi thẻ một màu */
a.tool[style]{background:oklch(.72 .08 var(--h)/.16);border-color:oklch(.65 .1 var(--h)/.34)}html.dark a.tool[style]{background:oklch(.55 .08 var(--h)/.16);border-color:oklch(.7 .08 var(--h)/.28)}a.tool[style] b{color:oklch(.4 .1 var(--h))}html.dark a.tool[style] b{color:oklch(.88 .07 var(--h))}a.tool[style]:hover{border-color:oklch(.65 .14 var(--h))}
/* Hộp phím tắt hai cột */
.dlg-keys{width:min(1000px,calc(100vw - 32px))}.keys-wrap{display:grid;grid-template-columns:minmax(0,1.618fr) minmax(0,1fr);gap:var(--g-l);padding:0 20px 20px}.keys-wrap .keys{padding:0;margin-top:12px}.keys-side{border-inline-start:1px solid var(--divider);padding-inline-start:var(--g-l);margin-top:12px}.keys-side .author{display:block;margin:0;padding:0;border:0;background:none;box-shadow:none}.keys-side .au-mark{margin-bottom:var(--g-s)}
@media (max-width:760px){.keys-wrap{grid-template-columns:minmax(0,1fr)}.keys-side{border-inline-start:0;padding-inline-start:0;border-top:1px solid var(--divider);padding-top:var(--g-m)}}
/* Nút ngôn ngữ và menu tài khoản */
.lang-menu summary{display:inline-flex;align-items:center;gap:5px}
.icon-btn.on{background:var(--brand-1);color:var(--bg);border-radius:50%}.icon-btn.on:hover{background:var(--brand-1);color:var(--bg)}
.acct-menu{min-width:240px;padding:8px;gap:2px;font-size:14px}.acct-menu[hidden]{display:none}.acct-menu a,.acct-menu button{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;padding:8px 10px;border:0;border-radius:8px;background:none;color:var(--t1);font:inherit;text-align:start;cursor:pointer}.acct-menu a:hover,.acct-menu button:hover{background:var(--bg-alt);text-decoration:none}.acct-menu small{color:var(--t3)}.acct-menu hr{width:100%;border:0;border-top:1px solid var(--divider);margin:4px 0}.am-who{margin:0;padding:6px 10px 8px;color:var(--t2);font-size:12.5px;overflow-wrap:anywhere}.am-who b{color:var(--brand-1)}
.lg-ts:empty{display:none}
.cols-slide{display:inline-flex;align-items:center;gap:var(--g-s);color:var(--t3);font-size:.786em}.cols-slide[hidden]{display:none}.cols-slide input{width:clamp(90px,14vw,180px);accent-color:var(--brand-1);cursor:pointer}.cols-slide output{min-width:1.2em;text-align:center;color:var(--t1);font-weight:600}
.rail .foot{margin-top:var(--g-l);padding-top:var(--g-m);border-top:1px solid var(--divider)}.rail .foot p{margin:0 0 var(--g-xs)}
.rail .link-btn{font-size:calc(var(--fs-main)*.696)}
.hero-strap{margin:calc(var(--g-s)*-1) 0 var(--g-m);color:var(--brand-1);font-weight:600;font-size:1.05em}
.nav{overflow-x:clip}
.main-resize{inset-inline-end:0}
/* Cụm nút giữ chuỗi đọc */
.dock{position:fixed;z-index:58;bottom:12px;inset-inline-end:var(--dock-x,12px);display:flex;gap:2px;padding:4px;border-radius:14px;background:var(--bg-elv);border:1px solid var(--divider);box-shadow:0 8px 24px rgb(0 0 0/.22)}
.dock-b{display:grid;place-items:center;width:38px;height:38px;border:0;border-radius:10px;background:none;color:var(--t2);cursor:pointer}.dock-b:hover:not(:disabled){background:var(--bg-alt);color:var(--brand-1)}.dock-b:disabled{opacity:.35;cursor:default}
html[dir=rtl] .dock-b[data-dock=back] svg,html[dir=rtl] .dock-b[data-dock=fwd] svg{transform:scaleX(-1)}
.dock-pop{position:absolute;bottom:calc(100% + 8px);inset-inline-end:0;width:min(340px,calc(100vw - 24px));max-height:min(60vh,420px);overflow:auto;padding:10px;border-radius:12px;background:var(--bg-elv);border:1px solid var(--divider);box-shadow:0 12px 32px rgb(0 0 0/.3)}.dock-pop[hidden]{display:none}
.dock-h{margin:0 0 6px;font-size:12px;color:var(--t3)}.dock-pop ol{margin:0;padding:0;list-style:none;display:grid;gap:2px}.dock-pop li a{display:block;padding:6px 8px;border-radius:8px;font-size:13px;line-height:1.35;color:var(--t1)}.dock-pop li a:hover{background:var(--bg-alt);text-decoration:none}.dock-pop li.cur a{color:var(--brand-1);font-weight:600}.dock-none{margin:0;font-size:13px;color:var(--t3)}
.admin-bar{bottom:66px}
@media (max-width:1279px){.dock{inset-inline-end:auto;inset-inline-start:12px}}
/* Đã đọc */
.side-items a.is-read .no{color:var(--brand-1)}.side-items a.is-read .no::after{content:"•";margin-inline-start:2px}
.am-stat{display:flex;justify-content:space-between;margin:0;padding:8px 10px;font-size:14px;color:var(--t1)}.am-stat small{color:var(--t3)}
/* Vũ trụ + ngăn kéo sơ đồ trang */
.gs-sub{font-size:.5em;font-weight:500;color:var(--t3)}
.sm-drawer{position:fixed;z-index:62;top:calc(var(--nav-h) + 12px);bottom:12px;inset-inline-end:0;display:flex;align-items:flex-start;pointer-events:none}
.sm-tab{pointer-events:auto;margin-top:40px;padding:12px 7px;writing-mode:vertical-rl;border:1px solid var(--divider);border-inline-end:0;border-radius:10px 0 0 10px;background:var(--bg-elv);color:var(--brand-1);font:600 12px/1 var(--font);letter-spacing:.06em;cursor:pointer;box-shadow:-4px 4px 16px rgb(0 0 0/.18)}
html[dir=rtl] .sm-tab{border-radius:0 10px 10px 0;border-inline-end:1px solid var(--divider);border-inline-start:0}
.sm-panel{pointer-events:auto;width:min(380px,86vw);height:100%;overflow:auto;padding:14px 16px;border:1px solid var(--divider);border-inline-end:0;border-radius:12px 0 0 12px;background:var(--bg-elv);box-shadow:-12px 0 32px rgb(0 0 0/.25);margin-inline-end:calc(-1 * min(380px,86vw));transition:margin .25s ease}
.sm-drawer:hover .sm-panel,.sm-drawer:focus-within .sm-panel,.sm-drawer.open .sm-panel{margin-inline-end:0}
.sm-panel h2{margin:0 0 8px;font-size:15px;border:0;padding:0}.sm-panel h3{margin:14px 0 4px;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--t3)}
.sm-q{width:100%;box-sizing:border-box;margin-bottom:6px;padding:7px 10px;border:1px solid var(--divider);border-radius:8px;background:var(--bg);color:var(--t1);font:inherit;font-size:13px}
.sm-panel details{border-bottom:1px solid var(--divider)}.sm-panel summary{display:flex;justify-content:space-between;gap:8px;padding:6px 0;cursor:pointer;font-size:13px}.sm-panel summary small{color:var(--t3)}.sm-panel ul{list-style:none;margin:0 0 6px;padding:0 0 0 10px;display:grid;gap:2px}.sm-panel li a{display:block;padding:2px 0;font-size:12.5px;line-height:1.4;color:var(--t2)}.sm-panel a:hover{color:var(--brand-1);text-decoration:none}.sm-panel [hidden]{display:none}
.graph-dlg .sm-drawer{top:60px}
@media (prefers-reduced-motion:reduce){.sm-panel{transition:none}}
@media (min-width:1280px){.rail{padding-bottom:84px}}
/* Thông báo nhỏ: nằm ngay trên cụm nút; mobile gọn một dòng ở đáy */
.toast{bottom:66px;inset-inline-start:auto;inset-inline-end:var(--dock-x,12px);transform:translateY(6px);max-width:min(360px,calc(100vw - 24px));padding:8px 12px;border-radius:10px;background:var(--bg-elv);color:var(--t1);border:1px solid var(--divider);box-shadow:0 8px 24px rgb(0 0 0/.22);font-size:13px;line-height:1.4;transition:opacity .2s,transform .2s}
.toast.show{opacity:1;transform:none}[dir=rtl] .toast{transform:translateY(6px)}[dir=rtl] .toast.show{transform:none}
@media (max-width:1279px){.toast{inset-inline:12px;bottom:62px;max-width:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}}
/* Nút báo lỗi trên mục */
.act[data-act=report].on{color:var(--brand-1);border-color:var(--brand-1)}
/* Thanh chọn đoạn */
.sel-pop{position:fixed;z-index:80;display:flex;align-items:center;padding:4px;border-radius:10px;background:#111;color:#fff;box-shadow:0 8px 24px rgb(0 0 0/.3)}.sel-pop[hidden]{display:none}
.sel-pop button{border:0;background:none;color:inherit;font:500 14px var(--font);padding:6px 12px;border-radius:7px;cursor:pointer}.sel-pop button:hover{background:rgb(255 255 255/.14)}.sel-pop span{width:1px;height:18px;background:rgb(255 255 255/.3)}
.sel-pop::after{content:"";position:absolute;bottom:-6px;left:50%;margin-left:-6px;border:6px solid transparent;border-bottom:0;border-top-color:#111}
/* Hộp báo lỗi / đóng góp */
.fb-dlg{width:min(560px,calc(100vw - 24px))}.fb-form{display:grid;gap:10px;padding:16px 20px 20px}.fb-form .dlg-head{padding:0}
.fb-for{margin:0;font-size:13px;color:var(--t2)}.fb-for b{color:var(--t1)}.fb-lbl{margin:4px 0 0;font-size:13px;font-weight:600;color:var(--t1)}
.fb-form blockquote{margin:0;padding:10px 12px;border-radius:8px;background:var(--bg-alt);font-size:14px;line-height:1.55;max-height:9em;overflow:auto}
.fb-kinds{display:flex;flex-wrap:wrap;gap:6px}.fb-kinds label{cursor:pointer}.fb-kinds input{position:absolute;opacity:0}.fb-kinds span{display:inline-block;padding:5px 11px;border:1px solid var(--divider);border-radius:999px;font-size:13px}.fb-kinds input:checked+span{border-color:var(--brand-1);color:var(--brand-1);background:var(--brand-soft);font-weight:600}.fb-kinds input:focus-visible+span{outline:2px solid var(--brand-1)}
.fb-form textarea,.fb-form input[type=url],.fb-form input[type=email],#fb-code{width:100%;box-sizing:border-box;padding:9px 11px;border:1px solid var(--divider);border-radius:8px;background:var(--bg);color:var(--t1);font:inherit;font-size:14px}.fb-form textarea{resize:vertical;min-height:6em}
.fb-form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.fb-login{display:grid;gap:6px;padding:10px 12px;border-radius:8px;border:1px dashed var(--divider)}.fb-login .hint{margin:0;font-size:13px}.fb-row{display:flex;gap:6px}.fb-row input{flex:1}
.fb-msg{margin:0;min-height:1.2em;font-size:13px;color:var(--t2)}
.fb-acts{display:flex;flex-wrap:wrap;align-items:center;gap:8px;justify-content:flex-end}.fb-mailto{font-size:12.5px;color:var(--t3);margin-inline-end:auto}
.fb-mine{width:min(620px,calc(100vw - 24px))}.fbm-list{display:grid;gap:10px;padding:12px 20px 20px;max-height:70vh;overflow:auto}.fbm{padding:10px 12px;border:1px solid var(--divider);border-radius:10px}.fbm header{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px}.fbm time{margin-inline-start:auto;color:var(--t3)}.fbm p{margin:6px 0 0;font-size:14px}.fbm blockquote{margin:6px 0 0;padding:6px 10px;border-inline-start:3px solid var(--divider);color:var(--t2);font-size:13px}.fbm-note{color:var(--t1)}
.fbm-st{padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600;background:var(--bg-alt)}.st-accepted .fbm-st{background:oklch(.7 .1 235/.18)}.st-done .fbm-st{background:oklch(.7 .12 150/.2)}.st-rejected .fbm-st{background:oklch(.7 .02 260/.2)}
/* Bộ font */
html[data-font=serif]{--font:"Literata",Georgia,"Noto Serif",serif}html[data-font=noto]{--font:"Noto Sans","Noto Sans Arabic","PingFang SC",system-ui,sans-serif}html[data-font=lexend]{--font:"Lexend","Noto Sans",system-ui,sans-serif}html[data-font=sys]{--font:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","PingFang SC",sans-serif}
.th-fonts{display:flex;flex-wrap:wrap;gap:6px}.th-font{padding:6px 12px;border:1px solid var(--divider);border-radius:999px;background:var(--bg);color:var(--t1);cursor:pointer;font-size:14px}.th-font[aria-pressed=true]{border-color:var(--brand-1);color:var(--brand-1);font-weight:600}
.th-font.f-be{font-family:"Be Vietnam Pro",sans-serif}.th-font.f-serif{font-family:"Literata",Georgia,serif}.th-font.f-noto{font-family:"Noto Sans",sans-serif}.th-font.f-lexend{font-family:"Lexend",sans-serif}.th-font.f-sys{font-family:system-ui,sans-serif}
/* Trang 404 */
.is-404{min-height:100vh;display:grid;place-items:center;background:var(--bg)}
.nf{position:relative;display:grid;justify-items:center;gap:12px;padding:32px 20px;text-align:center;max-width:520px}
.nf-orb{position:absolute;inset:-60px 0 auto;margin:auto;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--brand-1) 28%,transparent),transparent 65%);filter:blur(6px);z-index:-1;animation:nf-pulse 5s ease-in-out infinite}
@keyframes nf-pulse{50%{transform:scale(1.08);opacity:.7}}@media (prefers-reduced-motion:reduce){.nf-orb{animation:none}}
.nf-code{margin:0;font-size:clamp(64px,16vw,120px);font-weight:800;letter-spacing:-.04em;line-height:1;color:var(--brand-1)}
.nf h1{margin:0;font-size:clamp(18px,3vw,22px);font-weight:600;color:var(--t1)}.nf-c{margin:0;min-height:1.4em;color:var(--t3);font-size:14px}
.nf-acts{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:6px}.nf-acts [hidden]{display:none}.nf-brand{margin:24px 0 0;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--t3)}
.xref{border:0;color:inherit;text-decoration:underline dashed;text-decoration-color:color-mix(in srgb,var(--brand-1) 70%,transparent);text-decoration-thickness:1px;text-underline-offset:4px}.xref:hover{color:var(--brand-1);text-decoration-style:solid}
@media (max-width:760px){.dock{padding:3px;gap:0}.dock-b{width:34px;height:34px}}
/* Nút ngôn ngữ: chưa chọn thì quả địa cầu; đã chọn thì cờ to bo góc, không viền */
.lang-menu summary .flag,.lang-menu summary .lang-code{display:none}
html.lang-picked .lang-menu summary .ico-globe{display:none}
html.lang-picked .lang-menu summary .flag{display:block;width:28px;height:20px;border-radius:5px;box-shadow:none;clip-path:inset(0 round 5px)}
.lang-menu summary .ico-globe{display:inline-grid}
/* Câu chuyện NoteVida */
.author.story .au-lead{font-size:1.06em;color:var(--t1);font-weight:500}.author.story .au-mv{margin:6px 0;padding-inline-start:1.1em;display:grid;gap:4px;color:var(--t2)}
.author.story .au-promise{font-weight:600;color:var(--brand-1)}.author.story .au-by{font-size:.84em;color:var(--t3)}
/* Thông báo nổi: nền pha chút màu nhấn để tách khỏi nền trang */
.toast{background:color-mix(in oklab,var(--bg-elv) 84%,var(--brand-1));border-color:color-mix(in oklab,var(--divider) 50%,var(--brand-1));border-inline-start:3px solid var(--brand-1);color:var(--t1)}
/* Ghim và thu gọn trên màn hẹp */
.pin-b,.dock-tog,.rail .f-ico{display:none}
@media (max-width:1279px){
  .dock-tog{display:grid}.dock.mini>:not(.dock-tog){display:none!important}.dock.mini{padding:4px;border-radius:999px}.dock.mini .dock-tog{border-radius:999px;color:var(--brand-1)}
  .pin-b{display:grid;place-items:center;width:30px;height:30px;border:0;border-radius:8px;background:none;color:var(--t3);cursor:pointer;flex:none}
  .pin-b[aria-pressed=true]{color:var(--brand-1);background:var(--brand-soft)}.pin-b[aria-pressed=true] svg{fill:currentColor}
  .rail .filters{position:relative}.rail .filters>.pin-b{position:absolute;top:6px;inset-inline-end:8px;z-index:2}.rail .filters:not([open])>.pin-b{display:none}
  .rail .filters>summary{display:flex;align-items:center;gap:8px}.rail .f-ico{display:inline-grid;color:var(--brand-1)}
  .rail .filters:not([open])>summary{padding:10px 14px}.rail:has(.filters:not([open])){border-radius:999px}
}
/* Bảng phím tắt: quy tắc tổ hợp, nút Đổi hiện khi rê chuột (đã đăng nhập) */
.keys-rule{margin:0 0 10px;padding:8px 12px;border-radius:10px;background:var(--brand-soft);color:var(--t1);font-size:13px;line-height:1.5}
.keys-note{margin:10px 0 0;font-size:12.5px;color:var(--t3)}
.keys [data-k] dt{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.keys .kc{display:inline-flex;gap:3px}
.k-chg{border:1px solid var(--divider);background:var(--bg-soft);color:var(--brand-1);border-radius:999px;padding:1px 9px;font-size:11.5px;cursor:pointer;opacity:0;transition:opacity .15s}
.keys [data-k]:hover .k-chg,.k-chg:focus-visible,.k-chg.on{opacity:1}.k-chg.on{background:var(--brand-1);color:var(--bg)}
@media (hover:none){.k-chg{opacity:1}}

/* Nút bỏ lọc ngay cạnh tiêu đề bộ lọc */
.f-clear{margin-inline-start:8px;padding:1px 10px;border:1px solid color-mix(in oklab,var(--brand-1) 45%,transparent);border-radius:999px;background:var(--brand-soft);color:var(--brand-1);font:600 12px/1.6 var(--font);text-transform:none;letter-spacing:0;cursor:pointer;pointer-events:auto;vertical-align:middle}.f-clear:hover{background:var(--brand-1);color:var(--bg)}.f-clear[hidden]{display:none}

/* Vũ trụ: hướng dẫn chuột và cụm nút điều khiển */
.gs-top{position:absolute;z-index:3;inset-inline-start:14px;top:10px;max-width:min(560px,calc(100% - 70px));display:grid;gap:6px;pointer-events:none}
.gs-top .gs-h{position:static;max-width:none}.graph-dlg .gs-top{top:42px}
.gs-help{margin:0;padding:0;list-style:none;display:grid;gap:2px;font-size:12px;line-height:1.45;color:rgb(233 231 225/.6)}.gs-help li::before{content:"• ";color:rgb(235 199 125/.8)}
.gs-ctl{display:inline-flex;align-items:center;gap:2px;justify-self:start;padding:3px;border-radius:12px;background:rgb(14 16 26/.78);border:1px solid rgb(255 255 255/.14);backdrop-filter:blur(8px);pointer-events:auto}
.gs-b{display:grid;place-items:center;width:32px;height:32px;border:0;border-radius:9px;background:none;color:rgb(233 231 225/.85);cursor:pointer}.gs-b:hover{background:rgb(255 255 255/.1);color:#ffe2a0}.gs-b[aria-pressed=true]{color:#ffe2a0}
.gs-spd{min-width:78px;text-align:center;font-size:12px;color:rgb(233 231 225/.8);font-variant-numeric:tabular-nums}
.gs-c.drag{cursor:grabbing}
@media (max-width:640px){.gs-help{display:none}.gs-spd{min-width:56px;font-size:11px}}
/* Thứ tự 3 cột theo mẫu đã chọn */
html[data-ord] .side{order:var(--o-side)!important}html[data-ord] .main{order:var(--o-main)!important}html[data-ord] .rail{order:var(--o-rail)!important}
.ly-menu{display:none}@media (min-width:1280px){.ly-menu{display:block}}
.ly-list{width:300px;display:grid;gap:4px;padding:10px}.ly-h{margin:0 0 4px;font-size:12px;color:var(--t3)}.ly-note{margin:6px 0 0;font-size:11.5px;line-height:1.45;color:var(--t3)}
.ly-list button{display:grid;grid-template-columns:64px 1fr;align-items:center;gap:10px;padding:7px 8px;border:1px solid transparent;border-radius:10px;background:none;color:var(--t1);text-align:start;font:inherit;font-size:12.5px;cursor:pointer}
.ly-list button:hover{background:var(--bg-alt)}.ly-list button[aria-pressed=true]{border-color:var(--brand-1);background:var(--brand-soft)}
.ly-mini{display:flex;gap:3px;height:28px;padding:3px;border-radius:6px;background:var(--bg-mute)}.ly-mini i{border-radius:3px}
.ly-side{background:var(--brand-1);opacity:.75}.ly-main{background:var(--t3);opacity:.45}.ly-rail{background:var(--green-1);opacity:.75}
/* Kéo cột: cột trượt theo chuột, nhãn báo bố cục sẽ thành */
.col-moving{position:relative;z-index:50;box-shadow:0 18px 48px rgb(0 0 0/.35);outline:2px dashed var(--brand-1);outline-offset:-2px;background:var(--bg);transition:none!important}
body.col-dragging{user-select:none;cursor:grabbing}.col-badge{position:fixed;z-index:80;padding:5px 10px;border-radius:8px;background:var(--brand-1);color:var(--bg);font-size:12.5px;font-weight:600;pointer-events:none;white-space:nowrap}
/* Bộ lọc không khớp mục nào */
.showing .f-clear-in{margin-inline-start:6px}.showing.none{padding:12px 14px;border-radius:12px;border:1px dashed color-mix(in oklab,var(--brand-1) 55%,transparent);background:var(--brand-soft);color:var(--t1)}
.ly-menu{position:relative}.ly-menu>.pop-body{inset-inline-start:auto!important;inset-inline-end:0!important;max-height:calc(100vh - 80px);overflow:auto}
/* Tay nắm đổi độ rộng không được chặn menu đang mở trên header */
body:has(details.pop[open]) :is(.side-resize,.rail-resize){pointer-events:none}

/* Cụm nút nổi nằm gọn trong cột ngoài cùng khi cột đó hẹp */
@media (min-width:1280px){html[data-nr] .dock{max-width:calc(var(--nr-w) - 8px)}}
/* Trang chương: nút mở phần đầy đủ của mục */
.more{margin-top:10px}.more.shut .more-body{display:none}.more-body{margin-bottom:10px}
.more-b{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid var(--divider);border-radius:999px;background:var(--bg-soft);color:var(--brand-1);font:inherit;font-size:.88em;font-weight:600;cursor:pointer}
.more-b:hover{border-color:var(--brand-1);background:var(--brand-soft)}.more-b:disabled{opacity:.6;cursor:progress}

.act svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* Trang gốc: câu chuyện và mục lục chương cho người đọc và bot */
.root-lead{max-width:640px;margin:8px auto 0;text-align:center;color:var(--t2);line-height:1.6}
.root-story{max-width:980px;margin:40px auto 0;padding:0 16px;color:var(--t2);line-height:1.6}.root-story h2{font-size:18px;color:var(--t1);margin:24px 0 8px}
.root-ch{columns:2 280px;column-gap:28px;padding-inline-start:1.4em}.root-ch li{margin:3px 0;break-inside:avoid}.root-story a{color:var(--brand-1)}

/* Mobile: menu bật ra từ header thành tấm phủ ngang màn hình, không tràn mép; chạm nhanh không trễ */
@media (max-width:600px){
  .nav .pop[open]>.pop-body,.acct-menu{position:fixed!important;top:calc(var(--nav-h,54px) + 6px)!important;left:8px!important;right:8px!important;width:auto!important;min-width:0!important;max-width:none!important;max-height:calc(100dvh - var(--nav-h,54px) - 24px);overflow:auto;z-index:70}
}
button,summary,a,[role=button],.chip,label,select,input{touch-action:manipulation}
@media (hover:none){
  .tb:hover,.icon-btn:hover,.act:hover,.dlg-x:hover,.th-dot:hover{transform:none}
  .icon-btn:hover,.dock-b:hover:not(:disabled),.act:hover{background:none}
}
/* Màn hẹp: cụm nút đang mở thì nút Bộ lọc nhích lên trên, không bị che */
@media (max-width:1279px){body:has(.dock:not(.mini)) .rail{bottom:calc(66px + env(safe-area-inset-bottom,0px));transition:bottom .2s}}