/* Layout: a ledger book — ruled paper, red margin rule, green ledger ink. Pages: home, course, article, index, tools */
:root{
  --paper:#f4f7f5; --sheet:#ffffff; --ink:#122019; --muted:#566a60; --rule:#dce5df;
  --ledger:#0b5c45; --ledger-soft:#e2f0e9; --margin:#a45a1c; --gold:#a7761a; --head:#0b5c45;
  --good:#1d7a4c; --bad:#b3373d;
  --f-display:"Reem Kufi","IBM Plex Sans Arabic",Tahoma,sans-serif;
  --f-body:"IBM Plex Sans Arabic",Tahoma,"Segoe UI",sans-serif;
  --f-num:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0c1511; --sheet:#121e19; --ink:#e6eee9; --muted:#9aaca2; --rule:#23332b;
  --ledger:#4fc497; --ledger-soft:#15302a; --margin:#e3a066; --gold:#e0ac3c; --head:#0a3b2d;
  --good:#5cc59a; --bad:#e0686d; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0c1511; --sheet:#121e19; --ink:#e6eee9; --muted:#9aaca2; --rule:#23332b;
  --ledger:#4fc497; --ledger-soft:#15302a; --margin:#e3a066; --gold:#e0ac3c; --head:#0a3b2d;
  --good:#5cc59a; --bad:#e0686d; color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.8}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--head)}
.app{direction:rtl;text-align:right}
.wrap{max-width:1140px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3,h4{font-family:var(--f-display);text-wrap:balance;line-height:1.4;margin:0}
h1{font-size:clamp(1.7rem,4vw,2.4rem)} h2{font-size:1.6rem} h3{font-size:1.2rem}
p{margin:0}
a{color:var(--ledger)}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.muted{color:var(--muted)}

/* header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--head);color:#f2f8f4}
.hbar{display:flex;align-items:center;gap:14px;padding-block:10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-size:1.2rem;font-weight:700;margin-inline-end:auto;color:#fff;background:none;border:0;cursor:pointer;padding:0}
.brand i{display:grid;place-items:center;width:32px;height:32px;border:2px solid #fff;border-radius:4px;font-style:normal;font-family:var(--f-num);font-size:.9rem}
nav.tabs{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;max-width:100%}
nav.tabs button{background:none;border:0;color:#d3e6dc;padding:6px 12px;border-radius:3px;cursor:pointer;white-space:nowrap;font-weight:500}
nav.tabs button:hover{color:#fff;background:rgba(255,255,255,.08)}
nav.tabs button[aria-current="page"]{background:#fff;color:#0f5a43}

main{min-height:60vh}
.page{padding-block:28px 56px;display:grid;gap:28px}
.sec-head{display:grid;gap:6px;max-width:70ch}
.sec-head p{color:var(--muted)}
.eyebrow{font-size:.8rem;letter-spacing:.05em;color:var(--margin);font-weight:600}

.btn{border:1.5px solid var(--ledger);background:var(--ledger);color:var(--paper);padding:9px 18px;border-radius:3px;cursor:pointer;font-weight:600;text-decoration:none;display:inline-block}
.btn.ghost{background:transparent;color:var(--ledger)}
.btn:hover{filter:brightness(1.08)}

/* hero */
.hero{border-bottom:1px solid var(--rule);background:repeating-linear-gradient(to bottom,transparent 0 31px,var(--rule) 31px 32px)}
.hero .wrap{padding-block:40px 32px;display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;position:relative}
.hero h1{font-size:clamp(2rem,5vw,3rem);color:var(--ledger);margin-block:6px 12px}
.hero .lead{color:var(--muted);max-width:54ch;font-size:1.05rem}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.entry{background:var(--sheet);border:1px solid var(--rule);padding:16px;font-size:.92rem;min-width:0}
.entry .cap{font-size:.78rem;color:var(--muted);margin-bottom:8px;display:flex;justify-content:space-between}
.entry table{width:100%;border-collapse:collapse}
.entry td,.entry th{padding:6px 4px;border-bottom:1px solid var(--rule)}
.entry th{font-weight:500;color:var(--muted);font-size:.78rem;text-align:right}
.entry td.num{text-align:left}
.entry tr.cr td:first-child{padding-right:28px}
.entry tfoot td{border-top:2px double var(--ink);border-bottom:0;font-weight:600}

.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--rule);background:var(--sheet)}
.stats div{padding:16px 18px;border-left:1px solid var(--rule);display:grid}
.stats div:last-child{border-left:0}
.stats b{font-family:var(--f-num);font-size:1.9rem;color:var(--ledger);line-height:1.2}
.stats span{color:var(--muted);font-size:.88rem}

/* course cards */
.courses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.ccard{background:var(--sheet);border:1px solid var(--rule);border-top:4px solid var(--ledger);padding:20px;display:grid;gap:10px;align-content:start;cursor:pointer;text-align:right}
.ccard:hover{border-color:var(--ledger)}
.ccard .code{font-family:var(--f-num);font-size:.75rem;color:var(--margin);display:flex;justify-content:space-between}
.ccard p{color:var(--muted);font-size:.93rem}
.bar{height:6px;background:var(--rule);border-radius:3px;overflow:hidden}
.bar span{display:block;height:100%;background:var(--ledger);width:0;transition:width .4s}
.barlbl{font-size:.8rem;color:var(--muted)}

/* article cards */
.alist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.acard{background:var(--sheet);border:1px solid var(--rule);padding:16px 18px;display:grid;gap:6px;cursor:pointer;text-align:right;align-content:start}
.acard:hover{border-color:var(--ledger)}
.acard .m{display:flex;gap:10px;flex-wrap:wrap;font-size:.78rem;color:var(--muted)}
.acard .m .c{color:var(--margin);font-weight:600}
.acard h3{font-size:1.05rem}
.acard p{color:var(--muted);font-size:.9rem}

/* course page */
.chead{background:var(--sheet);border:1px solid var(--rule);border-top:4px solid var(--ledger);padding:24px;display:grid;grid-template-columns:1.5fr 1fr;gap:24px}
.chead .facts{display:flex;gap:18px;flex-wrap:wrap;font-size:.9rem;color:var(--muted)}
.chead .facts b{color:var(--ink);font-family:var(--f-num)}
.learn{margin:0;padding-right:20px;display:grid;gap:4px}
.lrows{display:grid;border:1px solid var(--rule);background:var(--sheet)}
.lrow{display:grid;grid-template-columns:3em 1fr auto;gap:12px;padding:14px 18px;border-bottom:1px solid var(--rule);cursor:pointer;text-align:right;background:none;border-left:0;border-right:0;border-top:0;align-items:start}
.lrow:last-child{border-bottom:0}
.lrow:hover{background:var(--ledger-soft)}
.lrow .n{font-family:var(--f-num);color:var(--muted);font-size:.9rem;padding-top:2px}
.lrow .tt{font-weight:600}
.lrow .dd{color:var(--muted);font-size:.9rem}
.lrow .side{font-size:.8rem;color:var(--muted);white-space:nowrap;display:grid;justify-items:end;gap:4px}
.done-tag{font-size:.72rem;padding:1px 8px;border-radius:20px;background:var(--ledger-soft);color:var(--ledger);font-weight:600}

/* article page */
.crumb{font-size:.85rem;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap}
.crumb button{background:none;border:0;padding:0;color:var(--ledger);cursor:pointer}
.alayout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
article.post{background:var(--sheet);border:1px solid var(--rule);padding:28px clamp(18px,4vw,40px);display:grid;gap:18px;min-width:0}
.post .meta{display:flex;gap:14px;flex-wrap:wrap;font-size:.85rem;color:var(--muted);border-bottom:1px solid var(--rule);padding-bottom:14px}
.post .lede{font-size:1.08rem;color:var(--ink)}
.toc{background:var(--paper);border:1px solid var(--rule);padding:14px 18px}
.toc b{font-family:var(--f-display)}
.toc ol{margin:6px 0 0;padding-right:20px;font-size:.93rem}
.toc a{text-decoration:none;cursor:pointer;display:inline-block;padding-block:5px;min-height:32px}
.body{display:grid;gap:14px;max-width:72ch}
.body h3{scroll-margin-top:90px;margin-top:14px;color:var(--ledger);font-size:1.3rem;padding-bottom:4px;border-bottom:1px solid var(--rule)}
.body h4{font-size:1.05rem;margin-top:6px}
.body ul,.body ol{margin:0;padding-right:24px;display:grid;gap:4px}
.tip{background:var(--ledger-soft);padding:12px 16px;border-right:3px solid var(--ledger);font-size:.95rem}
.warn{background:color-mix(in srgb,var(--margin) 9%,transparent);border-right-color:var(--margin)}
.ex{border:1px dashed var(--ledger);padding:14px 16px;display:grid;gap:8px;background:var(--paper)}
.ex>b:first-child{color:var(--ledger);font-family:var(--f-display)}
.sum{background:var(--paper);border:1px solid var(--rule);border-top:3px solid var(--ledger);padding:14px 18px}
.sum h3{border:0;margin:0 0 6px;font-size:1.1rem;padding:0}
.tbl{overflow-x:auto;max-width:100%}
.tbl table{border-collapse:collapse;width:100%;font-size:.92rem;min-width:420px}
.tbl th,.tbl td{border:1px solid var(--rule);padding:7px 10px;text-align:right;vertical-align:top}
.tbl th{background:var(--ledger-soft);font-weight:600}
code,kbd{font-family:var(--f-num);font-size:.86em;background:var(--ledger-soft);padding:1px 6px;border-radius:3px;direction:ltr;unicode-bidi:isolate;display:inline-block}
kbd{border:1px solid var(--rule);border-bottom-width:2px;background:var(--sheet)}
pre.code{font-family:var(--f-num);background:var(--paper);border:1px solid var(--rule);padding:10px 14px;direction:ltr;text-align:left;overflow-x:auto;font-size:.88rem;margin:0}
.je{overflow-x:auto}
.je table{border-collapse:collapse;min-width:360px;width:100%;font-size:.92rem;background:var(--sheet)}
.je th,.je td{border-bottom:1px solid var(--rule);padding:5px 8px;text-align:right}
.je th{color:var(--muted);font-weight:500;font-size:.8rem}
.je td.n{font-family:var(--f-num);text-align:left;direction:ltr;width:8em}
.je tr.cr td:first-child{padding-right:30px}
.je tr.note td{color:var(--muted);font-size:.84rem;border-bottom:2px solid var(--ink)}
.stmt{overflow-x:auto;background:var(--paper);border:1px solid var(--rule);padding:12px 14px}
.stmt .sh{font-family:var(--f-display);text-align:center;margin-bottom:8px;line-height:1.5}
.stmt .sh small{display:block;font-family:var(--f-body);color:var(--muted);font-size:.8rem}
.stmt table{width:100%;border-collapse:collapse;font-size:.93rem;min-width:300px}
.stmt td{padding:4px 6px}
.stmt td:last-child{text-align:left;font-family:var(--f-num);font-variant-numeric:tabular-nums;direction:ltr;white-space:nowrap;width:9em}
.stmt tr.h td{font-weight:700;color:var(--ledger);padding-top:10px}
.stmt tr.ind td:first-child{padding-right:22px}
.stmt tr.sub td{font-weight:600;border-top:1px solid var(--ink)}
.stmt tr.tot td{font-weight:700;border-top:1px solid var(--ink);border-bottom:3px double var(--ink)}
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.flow div{border:1px solid var(--ledger);padding:10px;font-size:.88rem;background:var(--sheet);display:grid;gap:4px}
.flow b{color:var(--ledger)}
.mark{justify-self:start;background:none;border:1.5px solid var(--ledger);color:var(--ledger);padding:8px 18px;border-radius:3px;cursor:pointer;font-weight:600}
.mark.on{background:var(--ledger);color:var(--paper)}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pn button{background:var(--sheet);border:1px solid var(--rule);padding:12px 16px;text-align:right;cursor:pointer;display:grid;gap:2px}
.pn button:hover{border-color:var(--ledger)}
.pn small{color:var(--muted)}
.pn .nx{text-align:left}
aside.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 70px);background:var(--sheet);border:1px solid var(--rule);max-height:calc(100vh - 100px);overflow:auto}
aside.side h4{padding:12px 16px;border-bottom:1px solid var(--rule);font-size:1rem}
aside.side button{display:grid;grid-template-columns:2.2em 1fr;gap:6px;width:100%;text-align:right;background:none;border:0;border-bottom:1px solid var(--rule);padding:9px 14px;cursor:pointer;font-size:.88rem;line-height:1.5}
aside.side button:hover{background:var(--ledger-soft)}
aside.side button[aria-current="true"]{background:var(--ledger-soft);font-weight:700;color:var(--ledger)}
aside.side button .n{font-family:var(--f-num);color:var(--muted)}
aside.side button.dn .n{color:var(--good)}

.subnav{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--rule);background:var(--sheet);padding:5px 14px;border-radius:20px;cursor:pointer;font-size:.9rem}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.search{border:1px solid var(--rule);background:var(--sheet);padding:12px 14px;border-radius:3px;width:100%;font-size:1rem}

/* tools */
.tool{background:var(--sheet);border:1px solid var(--rule);padding:20px;display:grid;gap:14px;min-width:0}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.field{display:grid;gap:4px;font-size:.85rem;color:var(--muted)}
.field input,.field select{border:1px solid var(--rule);background:var(--paper);padding:8px 10px;border-radius:3px;color:var(--ink);width:100%;min-width:0}
.result{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.result div{border-top:2px solid var(--ledger);padding-top:6px}
.result b{display:block;font-family:var(--f-num);font-size:1.3rem;direction:ltr;text-align:right}
.result small{color:var(--muted)}
.formula{font-family:var(--f-num);background:var(--paper);border:1px dashed var(--rule);padding:8px 12px;direction:ltr;text-align:left;overflow-x:auto;font-size:.9rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.tx{font-weight:600;font-size:1.05rem}
.fb{font-size:.93rem;padding:8px 12px;border-radius:3px}
.fb.ok,.status.ok{background:var(--ledger-soft);color:var(--good)}
.fb.no,.status.no{background:color-mix(in srgb,var(--bad) 12%,transparent);color:var(--bad)}
.status{font-weight:600;padding:8px 12px;border-radius:3px}
.tbin{width:100%;border-collapse:collapse;font-size:.92rem;min-width:320px}
.tbin td,.tbin th{border-bottom:1px solid var(--rule);padding:4px 6px;text-align:right}
.tbin input{width:100%;max-width:9em;border:1px solid var(--rule);background:var(--paper);padding:4px 6px;border-radius:3px;font-family:var(--f-num);direction:ltr;text-align:left}
.tbin tfoot td{font-weight:700;font-family:var(--f-num);direction:ltr}

/* quiz */
.q{background:var(--sheet);border:1px solid var(--rule);padding:20px;display:grid;gap:12px}
.q .meta{display:flex;justify-content:space-between;font-size:.82rem;color:var(--muted)}
.opts{display:grid;gap:8px}
.opt{border:1px solid var(--rule);background:var(--paper);padding:10px 14px;text-align:right;cursor:pointer;border-radius:3px}
.opt:hover:not(:disabled){border-color:var(--ledger)}
.opt.right{border-color:var(--good);background:var(--ledger-soft)}
.opt.wrong{border-color:var(--bad);color:var(--bad)}
.opt:disabled{cursor:default}
.score{font-family:var(--f-display);font-size:2.2rem;color:var(--ledger)}

/* glossary */
.gloss{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
.term{padding-block:12px;border-bottom:1px solid var(--rule);display:grid;gap:2px}
.term .t{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}
.term b{font-weight:600}
.term .en{font-family:var(--f-num);font-size:.82rem;color:var(--margin);direction:ltr}
.term p{color:var(--muted);font-size:.92rem}
.tagcat{font-size:.7rem;color:var(--muted)}

footer{border-top:1px solid var(--rule);color:var(--muted);font-size:.85rem}
footer .wrap{padding-block:20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

[hidden]{display:none!important}
.author{display:grid;grid-template-columns:auto 1fr;gap:20px;background:var(--sheet);border:1px solid var(--rule);border-right:4px solid var(--gold);padding:24px;align-items:start}
.author .av{width:84px;height:84px;border-radius:50%;background:var(--ledger);color:#fff;display:grid;place-items:center;font-family:var(--f-display);font-size:1.6rem;letter-spacing:.05em}
.au-t{display:grid;gap:10px;min-width:0;max-width:72ch}
.au-t h2 small{font-family:var(--f-body);font-size:.95rem;color:var(--muted);font-weight:500;margin-inline-start:8px}
.au-t .gift{background:var(--ledger-soft);padding:10px 14px;border-radius:3px}
.au-t .en{border-top:1px dashed var(--rule);padding-top:10px;text-align:left;color:var(--muted);font-size:.93rem;display:grid;gap:4px}
.au-t .en b{color:var(--ink)}
.author.compact .en{display:none}
.byl{padding:0 6px;font-size:.85rem}
.fcopy a{color:var(--ledger)}
@media (max-width:620px){.author{grid-template-columns:1fr}.author .av{width:64px;height:64px;font-size:1.2rem}}
.topbar{background:#0a3a2b;color:#cfe3d8;font-size:.82rem}
.tbar{display:flex;justify-content:space-between;align-items:center;padding-block:6px}
#toplinks{display:flex;gap:4px 16px;overflow-x:auto;scrollbar-width:none;white-space:nowrap}
#toplinks a{color:#cfe3d8;text-decoration:none;padding-block:2px}
#toplinks a:hover,#toplinks a[aria-current="page"]{color:#fff;text-decoration:underline;text-underline-offset:4px}
.logo{display:inline-flex;align-items:center;gap:10px;text-align:right}
.logo-t{display:grid;line-height:1.25}
.logo-t b{font-family:var(--f-display);font-size:1.3rem;letter-spacing:0}
.logo-t small{font-family:"IBM Plex Sans Arabic",system-ui,sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;opacity:.85;direction:ltr;text-align:right}
.logo-t .lgold{color:#e0ac3c}.fbrand .logo-t .lgold{color:var(--gold)}
.brand .logo-t b{color:#fff}.brand .logo-t small{color:#d3e6dc}
.fbrand .logo-t b{color:var(--ink)}.fbrand .logo-t small{color:var(--muted)}
.logo-mark{flex:none;display:block}
.hero-art{width:100%;height:auto;display:block;max-width:440px;justify-self:center}
.cover{display:block;width:100%;height:auto}
.ccard{padding:0;overflow:hidden;border-top:1px solid var(--rule)}
.ccb{display:grid;gap:10px;padding:16px 20px 20px}
.cbanner{border:1px solid var(--rule);overflow:hidden;border-bottom:0;margin-bottom:-28px}
.kws{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:.85rem;border-top:1px dashed var(--rule);padding-top:12px}
.kw{border:1px solid var(--rule);background:var(--paper);color:var(--ledger);padding:2px 10px;border-radius:20px;cursor:pointer;font-size:.8rem}
.kw:hover{border-color:var(--ledger)}
.spage .body a,.smap a{color:var(--ledger);cursor:pointer}
.smap{display:flex;flex-wrap:wrap;gap:8px 18px}
.about-band{max-width:460px}
.cgrid{display:grid;gap:8px}
.crow{display:grid;grid-template-columns:9em 1fr auto;gap:10px;align-items:center;padding:10px 14px;border:1px solid var(--rule);background:var(--paper)}
.crow .sel{user-select:all;overflow-wrap:anywhere;min-width:0}
.social{display:flex;gap:8px;flex-wrap:wrap}
.social a{border:1px solid var(--rule);padding:4px 12px;border-radius:20px;text-decoration:none;color:var(--ledger);font-size:.85rem}
.fgrid{display:grid;grid-template-columns:1.2fr 1.5fr auto;gap:20px;padding-block:24px 12px;align-items:start}
.flinks{display:flex;flex-wrap:wrap;gap:8px 18px}
.flinks a{color:var(--muted);text-decoration:none}.flinks a:hover{color:var(--ledger)}
.fcopy{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-block:12px 20px;border-top:1px solid var(--rule)}
footer .wrap{padding-block:inherit}
@media (max-width:760px){.fgrid{grid-template-columns:1fr}.crow{grid-template-columns:1fr auto}.crow .muted{grid-column:1/-1}.cbanner{margin-bottom:-12px}}
.tgroups{display:grid;gap:18px}.tgrp{display:grid;gap:8px}
.vatt td:nth-child(2){min-width:220px}.vatt tr.grp td{background:var(--ledger-soft);font-weight:700;color:var(--ledger)}.vatt tr.tot td{font-weight:700;border-top:1px solid var(--ink)}
.fsg input[type=text]{width:100%;min-width:160px;border:1px solid var(--rule);background:var(--paper);padding:4px 6px;border-radius:3px}.fsg select{border:1px solid var(--rule);background:var(--paper);padding:4px;border-radius:3px;max-width:200px}.fsg input:disabled{opacity:.4}
.tbin select{color:var(--ink)}
.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.tcard{background:var(--sheet);border:1px solid var(--rule);padding:12px 14px;text-align:right;cursor:pointer;font-size:.92rem;border-radius:3px;line-height:1.5}
.tcard:hover{border-color:var(--ledger)}
.tcard[aria-pressed="true"]{background:var(--ledger);color:var(--paper);border-color:var(--ledger)}
.tool h4{font-size:1rem;color:var(--ledger)}
.pill{display:inline-block;font-size:.78rem;padding:1px 10px;border-radius:20px;font-weight:600}
.pill.ok{background:var(--ledger-soft);color:var(--good)}
.pill.mid{background:color-mix(in srgb,var(--gold) 16%,transparent);color:var(--gold)}
.pill.no{background:color-mix(in srgb,var(--bad) 12%,transparent);color:var(--bad)}
.linkbtn{background:none;border:1px solid var(--rule);color:var(--ledger);padding:4px 12px;border-radius:3px;cursor:pointer;font-size:.86rem}
.linkbtn:hover{border-color:var(--ledger)}
.linkbtn.danger{color:var(--bad)}
.field textarea{border:1px solid var(--rule);background:var(--paper);padding:10px;border-radius:3px;color:var(--ink);width:100%;min-width:0;font:inherit;line-height:1.7;resize:vertical}
.field input[type=text]{border:1px solid var(--rule);background:var(--paper);padding:8px 10px;border-radius:3px;color:var(--ink);width:100%}
.fmt summary{cursor:pointer;color:var(--ledger);font-size:.9rem}
.wr{align-items:start}
.plist{display:grid;border:1px solid var(--rule);background:var(--sheet)}
.prow{display:flex;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--rule);flex-wrap:wrap;align-items:center}
.prow:last-child{border-bottom:0}
#navWrite{border:1px dashed rgba(255,255,255,.5)}
@media (max-width:900px){
  .hero .wrap,.chead,.two,.alayout{grid-template-columns:1fr}
  .courses{grid-template-columns:1fr 1fr}
  aside.side{position:static;max-height:none}
}
@media (max-width:620px){
  .courses,.alist,.gloss,.pn{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats div:nth-child(2){border-left:0}
  .stats div:nth-child(-n+2){border-bottom:1px solid var(--rule)}
  .flow{grid-template-columns:1fr 1fr}
  .lrow{grid-template-columns:2.4em 1fr}
  .lrow .side{grid-column:2;justify-items:start;grid-auto-flow:column;gap:10px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ===== v3: professional refresh ===== */
:root{--r:12px;--r-sm:8px;--sh:0 1px 2px rgba(16,40,30,.05),0 6px 18px rgba(16,40,30,.06);--sh-h:0 10px 30px rgba(16,40,30,.13)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--sh:0 1px 2px rgba(0,0,0,.4),0 6px 18px rgba(0,0,0,.25);--sh-h:0 10px 30px rgba(0,0,0,.45)}}
:root[data-theme="dark"]{--sh:0 1px 2px rgba(0,0,0,.4),0 6px 18px rgba(0,0,0,.25);--sh-h:0 10px 30px rgba(0,0,0,.45)}
.ccard,.acard,.tool,.q,.chead,article.post,aside.side,.lrows,.stats,.author,.entry,.sum,.toc,.plist,.tcard,.wcard,.cbanner,.ex,.tip,.opt,.pn button,.crow{border-radius:var(--r)}
.cbanner{border-radius:var(--r) var(--r) 0 0}
.btn,.mark,.linkbtn,.search,.field input,.field select,.field textarea{border-radius:var(--r-sm)}
.ccard,.acard,.tool,.q,article.post,.lrows,.chead,.wcard{box-shadow:var(--sh)}
.ccard,.acard,.tcard,.tf,.fc3>div{transition:transform .16s ease,box-shadow .16s ease,border-color .16s}
.ccard:hover,.acard:hover,.tf:hover{transform:translateY(-3px);box-shadow:var(--sh-h)}
.btn{padding:10px 20px}
.page{gap:36px}
.sec-head h2{font-size:clamp(1.4rem,3vw,1.8rem)}
.shead2{display:flex;justify-content:space-between;align-items:end;gap:12px;flex-wrap:wrap}
.shead2 .linkbtn{white-space:nowrap}
/* header */
header{box-shadow:0 2px 14px rgba(0,0,0,.18)}
.hbar{flex-wrap:nowrap;gap:16px;padding-block:8px}
.brand{margin-inline-end:6px;flex:none}
nav.tabs{flex:1;overflow:visible;align-items:center;gap:2px}
nav.tabs>button,.dd>button{padding:8px 12px;border-radius:8px}
.car{font-size:.7em;opacity:.8;margin-inline-start:2px}
.dd{position:relative}
.mega{position:absolute;top:calc(100% + 10px);inset-inline-start:0;width:min(780px,calc(100vw - 32px));background:var(--sheet);color:var(--ink);border:1px solid var(--rule);border-radius:16px;box-shadow:var(--sh-h);padding:20px;display:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 20px;z-index:30}
.mega::before{content:"";position:absolute;inset-inline:0;top:-12px;height:12px}
.dd:hover .mega,.dd:focus-within .mega{display:grid}
.dd.noh .mega{display:none!important}
.mg h5{font-family:var(--f-display);font-size:.85rem;color:var(--margin);margin:0 0 6px;display:flex;align-items:center;gap:8px}
.mg h5 i{width:22px;height:22px;border-radius:6px;display:grid;place-items:center}
nav.tabs .mega button{display:block;width:100%;text-align:right;background:none;border:0;padding:6px 8px;border-radius:8px;color:var(--ink);cursor:pointer;font-size:.92rem;font-weight:500;white-space:normal;line-height:1.5}
nav.tabs .mega button:hover{background:var(--ledger-soft);color:var(--ledger)}
nav.tabs .mega .mall{grid-column:1/-1;border-top:1px solid var(--rule);padding-top:12px;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:.88rem;color:var(--muted)}
nav.tabs .mega .mall button{width:auto;color:var(--ledger);font-weight:700}
.hsearch{position:relative;width:250px;flex:none}
.hsearch input{width:100%;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;border-radius:999px;padding:8px 38px 8px 14px;font-size:.92rem}
.hsearch input::placeholder{color:#c4dbcf}
.hsearch input:focus{background:#fff;color:#17221c;outline:none;border-color:#fff}
.hsearch input:focus::placeholder{color:#7a8b82}
.hsearch svg{position:absolute;inset-inline-start:12px;top:50%;transform:translateY(-50%);pointer-events:none;color:#c4dbcf}
.sres{position:absolute;top:calc(100% + 8px);inset-inline-end:0;width:min(440px,calc(100vw - 32px));background:var(--sheet);color:var(--ink);border:1px solid var(--rule);border-radius:14px;box-shadow:var(--sh-h);max-height:70vh;overflow:auto;padding:8px;z-index:40;display:grid;gap:2px}
.sres h6{font-size:.75rem;color:var(--muted);margin:8px 10px 2px;font-weight:600}
.sres button{display:grid;gap:1px;text-align:right;background:none;border:0;padding:8px 10px;border-radius:8px;cursor:pointer;color:var(--ink);line-height:1.5}
.sres button:hover,.sres button:focus-visible{background:var(--ledger-soft)}
.sres button small{color:var(--muted);font-size:.78rem}
.sres .sall{color:var(--ledger);font-weight:600;border-top:1px solid var(--rule);border-radius:0;margin-top:4px}
.burger{display:none;background:none;border:1px solid rgba(255,255,255,.3);border-radius:8px;width:42px;height:38px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:4px;flex:none}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s,opacity .2s}
header.open .burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
header.open .burger span:nth-child(2){opacity:0}
header.open .burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:1240px){.hsearch{width:180px}}
@media (max-width:1120px){
  .hbar{flex-wrap:wrap;gap:10px}
  .burger{display:flex;order:2;margin-inline-start:auto}
  .brand{order:1}
  .hsearch{order:3;flex-basis:100%;width:auto}
  nav.tabs{display:none;order:4;flex-basis:100%;flex-direction:column;align-items:stretch;padding-bottom:8px;gap:2px}
  header.open nav.tabs{display:flex}
  nav.tabs>button,.dd>button{text-align:right;width:100%;padding:10px 12px}
  .dd .mega,.car{display:none!important}
}
/* hero */
.hero2{background:radial-gradient(circle at 12% 18%,rgba(255,255,255,.09),transparent 42%),linear-gradient(135deg,#0a3528,#0f5a43 55%,#147353);color:#eef6f1;position:relative;overflow:hidden}
.hero2::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(to bottom,transparent 0 31px,rgba(255,255,255,.045) 31px 32px);pointer-events:none}
.h2grid{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center;padding-block:56px 36px;position:relative}
.badge-top{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:4px 14px;border-radius:999px;font-size:.85rem;margin-bottom:16px}
.badge-top i{width:8px;height:8px;border-radius:50%;background:#f2c76b;display:inline-block}
.hero2 h1{font-size:clamp(1.9rem,4.6vw,3.05rem);color:#fff;line-height:1.35}
.hero2 h1 em{font-style:normal;color:#f2c76b}
.hero2 .lead{color:#cfe3d8;font-size:1.06rem;max-width:58ch;margin-top:14px}
.hero-search{display:flex;gap:8px;background:#fff;border-radius:14px;padding:6px;margin-top:24px;box-shadow:0 12px 30px rgba(0,0,0,.22);max-width:620px}
.hero-search input{flex:1;min-width:0;border:0;background:transparent;padding:10px 12px;color:#17221c;font-size:1rem;outline:none}
.hero-search input::placeholder{color:#7a8b82}
.hero-search .btn{background:#0f5a43;border-color:#0f5a43;color:#fff;flex:none}
.popular{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;font-size:.85rem;color:#b9d4c6}
.popular button{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;border-radius:999px;padding:3px 12px;cursor:pointer;font-size:.82rem}
.popular button:hover{background:rgba(255,255,255,.2)}
.hero-visual{background:var(--paper);border-radius:22px;padding:18px;box-shadow:0 24px 50px rgba(0,0,0,.28);min-width:0}
.hero-visual .hero-art{max-width:none}
.trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding-block:0 36px;position:relative}
.trust div{display:flex;gap:12px;align-items:center;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:12px 14px;font-size:.86rem;color:#cfe3d8;line-height:1.5;min-width:0}
.trust b{display:block;color:#fff;font-size:.98rem}
.trust i{flex:none;width:36px;height:36px;border-radius:10px;background:rgba(242,199,107,.16);color:#f2c76b;display:grid;place-items:center;font-style:normal}
/* tracks */
.courses{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.tracks{display:grid;gap:40px}
.track{display:grid;gap:16px;scroll-margin-top:90px}
.thead{display:flex;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap;border-bottom:1px solid var(--rule);padding-bottom:12px}
.thead .ti{display:flex;align-items:center;gap:12px;min-width:0}
.tico{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center}
.thead h3{font-size:1.25rem}
.thead p{color:var(--muted);font-size:.9rem}
.thead .cnt{font-size:.85rem;color:var(--muted);white-space:nowrap}
.ccb h3{font-size:1.08rem;line-height:1.5}
.ccb p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cmeta{display:flex;gap:6px 12px;flex-wrap:wrap;font-size:.8rem;color:var(--muted);align-items:center}
.lvlp{background:var(--ledger-soft);color:var(--ledger);border-radius:999px;padding:0 10px;font-weight:600}
.trkchips .chip{display:inline-flex;gap:6px;align-items:center}
/* features */
.tfeat{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tf{background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);padding:18px;text-align:right;cursor:pointer;display:grid;gap:6px;box-shadow:var(--sh);align-content:start}
.tf .ic{width:40px;height:40px;border-radius:10px;background:var(--ledger-soft);color:var(--ledger);display:grid;place-items:center;margin-bottom:4px}
.tf b{font-size:1.02rem}
.tf span{color:var(--muted);font-size:.88rem;line-height:1.6}
.fc3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.fc3>div{background:var(--sheet);border:1px solid var(--rule);border-radius:16px;padding:22px;display:grid;gap:10px;align-content:start;box-shadow:var(--sh);border-top:4px solid var(--c,var(--ledger))}
.fc3 .big{font-family:var(--f-num);font-size:2rem;font-weight:600;color:var(--c,var(--ledger));line-height:1.1}
.fc3 p{color:var(--muted);font-size:.92rem}
.fc3 .btn{justify-self:start}
.ctaband{background:linear-gradient(135deg,#0f5a43,#0a3528);color:#fff;border-radius:20px;padding:32px clamp(20px,4vw,40px);display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;position:relative;overflow:hidden}
.ctaband h2{color:#fff}.ctaband p{color:#cfe3d8;margin-top:6px}
.ctaband .btn{background:#fff;color:#0f5a43;border-color:#fff}
.ctaband .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
/* english */
.en-i{unicode-bidi:isolate}
.en-block{background:var(--paper);border:1px solid var(--rule);border-left:3px solid var(--ledger);padding:10px 14px;text-align:left;border-radius:8px;line-height:1.9;overflow-wrap:anywhere}
.seg{display:inline-flex;background:var(--sheet);border:1px solid var(--rule);border-radius:999px;padding:4px;gap:4px;flex-wrap:wrap;max-width:100%;justify-self:start}
.seg button{border:0;background:none;padding:8px 16px;border-radius:999px;cursor:pointer;font-weight:600;color:var(--muted)}
.seg button[aria-selected="true"]{background:var(--ledger);color:var(--paper)}
.seg small{font-family:var(--f-num);opacity:.85;margin-inline-start:4px}
.seg.sm button{padding:6px 12px;font-size:.88rem}
#gbody,#edOut{display:grid;gap:14px}
.edtop{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}
.lv{align-items:center}
.wgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.wcard{background:var(--sheet);border:1px solid var(--rule);padding:14px 16px;display:grid;gap:6px;align-content:start}
.wh{display:flex;align-items:center;gap:8px;flex-wrap:wrap;direction:ltr}
.wh b{font-size:1.12rem;color:var(--ledger);font-weight:700}
.pos{font-size:.72rem;color:var(--muted);border:1px solid var(--rule);border-radius:999px;padding:0 8px;direction:rtl}
.lvl{font-family:var(--f-num);font-size:.72rem;font-weight:600;padding:1px 8px;border-radius:6px;background:var(--ledger-soft);color:var(--ledger)}
.lvl.lB1,.lvl.lB2{background:color-mix(in srgb,var(--gold) 16%,transparent);color:var(--gold)}
.lvl.lC1,.lvl.lC2{background:color-mix(in srgb,var(--margin) 12%,transparent);color:var(--margin)}
.spk{margin-left:auto;background:none;border:1px solid var(--rule);border-radius:999px;width:30px;height:30px;display:grid;place-items:center;cursor:pointer;color:var(--ledger);padding:0}
.spk:hover{border-color:var(--ledger)}
.wcard .ar{font-weight:600}
.exs{color:var(--muted);font-size:.9rem;text-align:left;font-style:italic}
.more{justify-self:center}
.fcwrap{display:grid;gap:12px;max-width:580px;margin-inline:auto;width:100%}
.fcbar{display:flex;justify-content:space-between;font-size:.85rem;color:var(--muted);flex-wrap:wrap;gap:8px}
.fcard{min-height:230px;border-radius:20px;border:1px solid var(--rule);background:linear-gradient(160deg,var(--sheet),var(--ledger-soft));box-shadow:var(--sh-h);display:grid;place-content:center;gap:12px;text-align:center;cursor:pointer;padding:24px;color:var(--ink)}
.fcard .fw{font-size:clamp(1.8rem,6vw,2.4rem);font-weight:700;color:var(--ledger)}
.fcard .fa{font-size:1.6rem;font-weight:700;font-family:var(--f-display)}
.fcard .fx{font-style:italic;color:var(--muted)}
.fcard .fh{font-size:.82rem}
.fcard.flip{background:linear-gradient(160deg,var(--sheet),color-mix(in srgb,var(--gold) 16%,transparent))}
.fcact{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
/* footer */
footer{background:var(--sheet);border-top:1px solid var(--rule);color:var(--muted);margin-top:24px}
footer .fgrid4-old{display:grid;grid-template-columns:1.5fr 1.2fr 1fr 1fr;gap:28px;padding-block:40px 24px}
.fcol{display:grid;gap:10px;align-content:start;min-width:0}
.fcol h4{font-size:1rem;color:var(--ink)}
.fcol ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.fcol a{color:var(--muted);text-decoration:none;font-size:.9rem;cursor:pointer}
.fcol a:hover{color:var(--ledger)}
.fcol .fdesc{font-size:.9rem;line-height:1.8}
@media (max-width:960px){.h2grid{grid-template-columns:1fr;padding-block:40px 28px}.hero-visual{display:none}.trust,.tfeat,.fc3{grid-template-columns:1fr 1fr}.fgrid4{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.trust,.tfeat,.fc3,.fgrid4{grid-template-columns:1fr}.hero-search .btn{padding-inline:14px}.edtop{grid-template-columns:1fr}.trust div{padding:10px 12px}}

/* ===== journal guide + admin ===== */
.visbar{position:fixed;bottom:16px;inset-inline:16px;margin-inline:auto;max-width:640px;background:#17221c;color:#fff;border-radius:14px;padding:10px 14px;display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;z-index:60;box-shadow:0 10px 30px rgba(0,0,0,.3);font-size:.9rem}
.visbar button{background:#e0ac3c;color:#1d1404;border:0;border-radius:8px;padding:8px 14px;font-weight:700;cursor:pointer}
.jeq{display:grid;gap:8px;padding-block:6px 10px;border-bottom:1px dashed var(--rule)}
.jeq h4{display:flex;gap:10px;align-items:center}
.jen{flex:none;min-width:30px;height:30px;padding:0 6px;border-radius:8px;background:var(--ledger);color:var(--paper);display:grid;place-items:center;font-family:var(--f-num);font-size:.85rem}
.annbar{background:var(--gold);color:#1d1404;font-size:.9rem;font-weight:600;text-align:center}
.annbar .wrap{padding-block:6px}
.topsoc{display:flex;gap:4px;flex:none}
.topsoc .soc{color:#cfe3d8;width:26px;height:26px}
.soc{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;border:1px solid var(--rule);color:var(--ledger);text-decoration:none}
.topsoc .soc{border-color:rgba(255,255,255,.2)}
.soc:hover{border-color:var(--ledger)}
.social{gap:8px}.social a.soc{padding:0}
.socrow{display:flex;gap:8px;flex-wrap:wrap}
#adTop .adslot{margin-top:16px}
.adslot{display:grid;justify-items:center;gap:4px;min-height:90px;overflow:hidden}
.adslot ins{width:100%}
.adlbl{font-size:.7rem;color:var(--muted)}
.adslot.ph{border:2px dashed color-mix(in srgb,var(--gold) 60%,transparent);background:color-mix(in srgb,var(--gold) 7%,transparent);border-radius:var(--r);padding:16px;text-align:center;align-content:center;color:var(--ink)}
.adslot.ph b{color:var(--gold);font-family:var(--f-display)}
.adslot.ph small{color:var(--muted)}
.sidead{padding:12px}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:999px;font-size:.9rem;z-index:50;box-shadow:var(--sh-h);max-width:calc(100vw - 32px);text-align:center}
body.noco main,body.noco .app{-webkit-user-select:none;user-select:none}
body.noco input,body.noco textarea{-webkit-user-select:text;user-select:text}
.adm{display:grid;grid-template-columns:240px minmax(0,1fr);gap:24px;align-items:start}
.admnav{display:grid;gap:4px;background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);padding:8px;position:sticky;top:90px}
.admnav button{text-align:right;background:none;border:0;padding:10px 12px;border-radius:8px;cursor:pointer;font-weight:500;color:var(--ink)}
.admnav button:hover{background:var(--ledger-soft)}
.admnav button[aria-current="true"]{background:var(--ledger);color:var(--paper)}
.admbody{display:grid;gap:18px;min-width:0}
.admbody>h3{color:var(--ledger)}
.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.kpi{background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);padding:14px 16px;display:grid;gap:2px;box-shadow:var(--sh)}
.kpi span{font-size:.85rem;color:var(--muted)}
.kpi b{font-family:var(--f-num);font-size:1.7rem;color:var(--ink);line-height:1.2}
.kpi small{color:var(--muted);font-size:.78rem}
.vchart{display:grid;grid-template-columns:repeat(14,minmax(0,1fr));gap:6px;align-items:end;height:180px;padding-top:10px;border-bottom:1px solid var(--rule)}
.vc{position:relative;height:100%;display:grid;grid-template-rows:1fr auto;align-items:end;outline:none}
.vc i{display:block;background:var(--ledger);border-radius:4px 4px 0 0;min-height:2px;align-self:end}
.vc small{font-family:var(--f-num);font-size:.68rem;color:var(--muted);text-align:center;padding-top:4px}
.vc .tipv{position:absolute;bottom:calc(100% + 4px);left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);font-size:.75rem;padding:4px 8px;border-radius:6px;white-space:nowrap;display:none;z-index:2}
.vc:hover .tipv,.vc:focus .tipv{display:block}
.vc:hover i,.vc:focus i{filter:brightness(1.2)}
.hbarr{display:flex;align-items:center;gap:8px;min-width:140px}
.hbarr i{display:block;height:8px;border-radius:0 4px 4px 0;background:var(--ledger)}
.tgl{position:relative;display:flex;gap:12px;align-items:flex-start;cursor:pointer;background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);padding:14px 16px}
.tgl input{position:absolute;opacity:0;width:1px;height:1px}
.tgl .sw{flex:none;width:44px;height:24px;border-radius:999px;background:var(--rule);position:relative;transition:background .15s;margin-top:2px}
.tgl .sw::after{content:"";position:absolute;top:3px;right:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .15s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.tgl input:checked+.sw{background:var(--ledger)}
.tgl input:checked+.sw::after{transform:translateX(-20px)}
.tgl input:focus-visible+.sw{outline:2px solid var(--gold);outline-offset:2px}
.tgl small{display:block;color:var(--muted);font-size:.85rem}
.adgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.adcfg{display:flex;gap:12px;background:var(--sheet);border:1px solid var(--rule);border-radius:var(--r);padding:14px}
.adn{flex:none;width:32px;height:32px;border-radius:8px;background:color-mix(in srgb,var(--gold) 18%,transparent);color:var(--gold);display:grid;place-items:center;font-family:var(--f-num);font-weight:700}
.savebar{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.barlbl.err{color:var(--bad)}
@media (max-width:860px){.adm{grid-template-columns:1fr}.admnav{position:static;display:flex;overflow-x:auto;scrollbar-width:none}.admnav button{white-space:nowrap}.adgrid{grid-template-columns:1fr}}
@media (max-width:620px){.vchart{gap:3px}}

/* ===== v4 polish: palette, footer, share ===== */
header{background:linear-gradient(90deg,#0a4b38,#0b5c45 60%,#0d6a4f)}
.topbar{background:#083627}
.btn{box-shadow:0 2px 8px color-mix(in srgb,var(--ledger) 28%,transparent);font-weight:700}
.btn.ghost{box-shadow:none}
.chip[aria-pressed="true"]{background:var(--ledger);border-color:var(--ledger);color:var(--paper)}
.chip:hover{border-color:var(--ledger)}
.eyebrow{display:inline-flex;align-items:center;gap:6px;letter-spacing:.02em}
.eyebrow::before{content:"";width:14px;height:2px;border-radius:2px;background:currentColor;opacity:.7}
.sec-head h2,.post h1{color:var(--ink)}
.body h3{color:var(--ledger)}
.tip{border-right-width:4px}
.ex{border-style:solid;border-color:var(--rule);border-right:4px solid var(--gold);background:color-mix(in srgb,var(--gold) 5%,var(--sheet))}
.ex>b:first-child{color:var(--gold)}
.sum{border-top-color:var(--gold)}
.tbl th{background:var(--ledger);color:#fff;border-color:var(--ledger)}
.tbl tr:nth-child(even) td{background:color-mix(in srgb,var(--ledger-soft) 45%,transparent)}
::selection{background:color-mix(in srgb,var(--gold) 35%,transparent)}
/* footer */
footer{background:#0a2a20;color:#b7cbc0;border-top:4px solid var(--gold);margin-top:40px}
footer .wrap.fmain{display:grid;grid-template-columns:1.35fr 1.3fr 1fr 1fr;gap:32px;padding-block:44px 30px}
footer .fcol h4{color:#fff;font-size:1.02rem;margin-bottom:12px;display:flex;align-items:center;gap:8px}
footer h4::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--gold)}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer .fcol a,footer a{color:#b7cbc0;text-decoration:none;cursor:pointer;font-size:.9rem}
footer .fcol a:hover,footer a:hover{color:#fff}
footer .fowner a{color:#e0ac3c}footer .fbottom a{color:#e0ac3c}footer .flegal a{color:#b7cbc0}
footer .fsoc a{color:#e2ece6}
footer .fcol{min-width:0;display:grid;align-content:start}
.fbrand .logo-t b{color:#fff}.fbrand .logo-t small{color:#b7cbc0}.fbrand .logo-t .lgold{color:#e0ac3c}
.fdesc{font-size:.9rem;line-height:1.8;margin-top:12px;color:#b7cbc0}
.fowner{margin-top:16px;display:flex;gap:12px;align-items:flex-start;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:14px}
.fowner .av{flex:none;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#e0ac3c,#b8862a);color:#1d1404;display:grid;place-items:center;font-family:var(--f-display);font-weight:700}
.fowner b{color:#fff;display:block}
.fowner p{font-size:.84rem;line-height:1.7;margin:2px 0 6px}
.fowner a{color:#e0ac3c;font-weight:600;font-size:.85rem}
.farts li a{display:grid;gap:1px;line-height:1.55;unicode-bidi:plaintext;text-align:right}
.farts small{color:#7f978a;font-size:.75rem}
.fsoc{display:grid;gap:8px}
.fsoc a{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:8px 12px;color:#e2ece6}
.fsoc a:hover{background:var(--sc,#0b5c45);border-color:transparent;color:#fff}
.fsoc a svg{flex:none}
.fsoc .soon{font-size:.85rem;color:#8ea79a;line-height:1.7}
.fbottom{background:#071f17;font-size:.85rem}
.fbottom .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-block:14px}
.fbottom a{color:#e0ac3c}
.flegal{display:flex;gap:16px}.flegal a{color:#b7cbc0}
@media (max-width:960px){footer .wrap.fmain{grid-template-columns:1fr 1fr}}
@media (max-width:600px){footer .wrap.fmain{grid-template-columns:1fr;gap:26px}}
/* share */
.share{display:grid;gap:10px;border-top:1px dashed var(--rule);padding-top:14px}
.share b{font-family:var(--f-display);font-size:1rem}
.sharebtns{display:flex;flex-wrap:wrap;gap:8px}
.sharebtns a,.sharebtns button{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:8px 14px;font-size:.88rem;font-weight:600;text-decoration:none;color:#fff;background:var(--sc);border:0;cursor:pointer;transition:transform .12s,filter .12s;line-height:1}
.sharebtns a:hover,.sharebtns button:hover{transform:translateY(-2px);filter:brightness(1.08)}
.sharebtns svg{flex:none}
@media (max-width:620px){.sharebtns a span,.sharebtns button span{display:none}.sharebtns a,.sharebtns button{width:42px;height:42px;padding:0;justify-content:center}}
.mlinks{display:none}
@media (max-width:620px){#toplinks{display:none}.tbar{justify-content:flex-end;padding-block:4px}.admgear span{display:none}.hsearch input{padding-block:7px}.hbar{padding-block:8px 10px}
 header.open .mlinks{display:flex;flex-wrap:wrap;gap:6px 16px;padding:10px 12px 4px;border-top:1px solid rgba(255,255,255,.15);margin-top:6px}
 .mlinks a{color:#cfe3d8;font-size:.9rem;text-decoration:none;padding-block:6px}}

/* ===== bank exams ===== */
.navhot{position:relative}
nav.tabs>.navhot:not([aria-current])::after{content:"جديد";position:absolute;top:-7px;right:50%;transform:translateX(50%);background:#e0ac3c;color:#1d1404;font-size:.6rem;font-weight:700;padding:0 5px;border-radius:6px;line-height:1.5}
.bmark{flex:none;border-radius:14px;background:var(--bc);color:#fff;display:grid;place-items:center;font-family:var(--f-display);font-weight:700;box-shadow:inset 0 -3px 0 rgba(0,0,0,.18)}
.bmark span{font-family:'IBM Plex Sans Arabic',system-ui,sans-serif;font-size:.8rem;letter-spacing:.04em;line-height:1.1;text-align:center;padding:2px;direction:ltr}
.bhero{background:linear-gradient(135deg,#0a3528,#0b5c45);color:#eef6f1;border-radius:20px;padding:clamp(20px,4vw,36px)}
.bhero h1{color:#fff;font-size:clamp(1.5rem,3.6vw,2.2rem);margin-block:6px 10px}
.bhero .muted{color:#cfe3d8;max-width:70ch}
.bhero .eyebrow{color:#e0ac3c}
.bstats{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.bstats span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:4px 14px;font-size:.88rem}
.bstats b{font-family:var(--f-num);color:#fff}
.bgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.bcard{display:flex;gap:14px;align-items:flex-start;text-align:right;background:var(--sheet);border:1px solid var(--rule);border-top:4px solid var(--bc);border-radius:var(--r);padding:18px;cursor:pointer;box-shadow:var(--sh);transition:transform .16s,box-shadow .16s;color:var(--ink)}
.bcard:hover{transform:translateY(-3px);box-shadow:var(--sh-h)}
.bct{display:grid;gap:4px;min-width:0}
.bct b{font-size:1.08rem}
.bct small{color:var(--muted)}
.bct>span{color:var(--muted);font-size:.88rem;line-height:1.6}
.bcf{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:6px;font-size:.82rem}
.bcf .go{color:var(--ledger);font-weight:700}
.bhead{display:flex;gap:18px;align-items:center;background:var(--sheet);border:1px solid var(--rule);border-right:6px solid var(--bc);border-radius:var(--r);padding:20px;box-shadow:var(--sh)}
.bhead h1{font-size:clamp(1.3rem,3vw,1.9rem)}
.bsteps{counter-reset:st;list-style:none;padding:0!important;display:grid;gap:8px}
.bsteps li{counter-increment:st;display:flex;gap:10px;align-items:center;background:var(--paper);border:1px solid var(--rule);border-radius:10px;padding:8px 12px}
.bsteps li::before{content:counter(st);flex:none;width:26px;height:26px;border-radius:50%;background:var(--ledger);color:#fff;display:grid;place-items:center;font-family:var(--f-num);font-size:.8rem}
.bquiz{border-top:2px solid var(--rule);padding-top:18px}
.bqi{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;background:color-mix(in srgb,var(--gold) 8%,var(--sheet));border:1px solid var(--rule);border-right:4px solid var(--gold);border-radius:var(--r);padding:18px}
.bqi h2{font-size:1.3rem}
.bquiz details{margin-block:10px}.bquiz details ol{display:grid;gap:10px;padding-right:20px}
.bankband{display:grid;gap:16px;background:color-mix(in srgb,var(--ledger-soft) 60%,transparent);border:1px solid var(--rule);border-radius:20px;padding:clamp(16px,3vw,28px)}
.bmini{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.bmini button{display:flex;gap:10px;align-items:center;text-align:right;background:var(--sheet);border:1px solid var(--rule);border-radius:12px;padding:10px;cursor:pointer;color:var(--ink);transition:border-color .15s,transform .15s}
.bmini button:hover{border-color:var(--bc);transform:translateY(-2px)}
.bmini b{display:block;font-size:.92rem}.bmini small{color:var(--muted)}
@media (max-width:620px){.bhead{flex-direction:column;align-items:flex-start}.bmini{grid-template-columns:1fr 1fr}.bmini button{flex-direction:column;align-items:flex-start}}
.tleft{display:flex;align-items:center;gap:10px;flex:none}
.topsoc{gap:6px}
.topsoc .soc{width:28px;height:28px;border-color:rgba(255,255,255,.22);color:#e2ece6;transition:background .15s,color .15s,border-color .15s}
.topsoc a.soc:hover{background:var(--sc);border-color:var(--sc);color:#fff}
.topsoc .soc.off{opacity:.45}
.admgear{display:inline-flex;align-items:center;gap:6px;background:rgba(224,172,60,.15);border:1px solid rgba(224,172,60,.45);color:#f2c76b;border-radius:999px;padding:3px 10px;font-size:.78rem;cursor:pointer;font-weight:600}
.admgear:hover{background:rgba(224,172,60,.28)}
.admgear[hidden]{display:none!important}
.hero2 .owner-name{color:#f2c76b}

/* ===== English (LTR) mode ===== */
.langbtn{background:transparent;border:1px solid rgba(255,255,255,.3);color:#e2ece6;border-radius:999px;padding:3px 12px;font-size:.78rem;cursor:pointer;font-weight:600}
.langbtn:hover{background:rgba(255,255,255,.12)}
.app[dir=ltr]{direction:ltr;text-align:left}
.app[dir=ltr] nav.tabs>.navhot:not([aria-current])::after{content:"New"}
.app[dir=ltr] :is(.ccard,.acard,.lrow,.pn button,aside.side button,.tcard,.sres button,.bcard,.bmini button,.tf,nav.tabs .mega button,.farts li a,.admnav button,.opt,.thead,.fsoc a,.crow,.mlinks a,nav.tabs>button,.dd>button){text-align:left}
.app[dir=ltr] .pn .nx{text-align:right}
.app[dir=ltr] .tip{border-right:0;border-left:4px solid var(--ledger)}
.app[dir=ltr] .tip.warn{border-left-color:var(--margin)}
.app[dir=ltr] .ex{border-right:1px solid var(--rule);border-left:4px solid var(--gold)}
.app[dir=ltr] .author{border-right:1px solid var(--rule);border-left:4px solid var(--gold)}
.app[dir=ltr] .bhead{border-right:1px solid var(--rule);border-left:6px solid var(--bc)}
.app[dir=ltr] .bqi{border-right:1px solid var(--rule);border-left:4px solid var(--gold)}
.app[dir=ltr] .learn,.app[dir=ltr] .toc ol,.app[dir=ltr] .bquiz details ol{padding-right:0;padding-left:20px}
.app[dir=ltr] .body,.app[dir=ltr] .toc,.app[dir=ltr] .bquiz .q h3,.app[dir=ltr] .bquiz .opt,.app[dir=ltr] .fb{direction:rtl;text-align:right}
.app[dir=ltr] .body{margin-left:auto}
.app[dir=ltr] .au-t>p,.app[dir=ltr] .au-t .gift{display:none}
.app[dir=ltr] .author.compact .en{display:grid;border-top:0;padding-top:0}
.app[dir=ltr] .logo-t small,.app[dir=ltr] .logo-t{text-align:left}
.app[dir=ltr] .hero2 h1,.app[dir=ltr] .hero2 .lead{letter-spacing:0}
.app[dir=ltr] .crumb{direction:ltr}
.app[dir=ltr] .kws{display:none}
.app[dir=ltr] .hsearch input{padding:8px 14px 8px 38px}
.app[dir=ltr] #toolBox{direction:rtl;text-align:right}
article.post,.tool,.page{grid-template-columns:minmax(0,1fr)}
.tool>*{min-width:0}
.body code{white-space:normal;overflow-wrap:anywhere;max-width:100%}
.en-note{font-family:system-ui,"IBM Plex Sans Arabic",sans-serif}

.bmat{margin:26px 0;border:1px solid var(--rule);border-radius:16px;padding:20px;background:var(--sheet)}
.bmh{display:flex;gap:14px;justify-content:space-between;align-items:flex-start;flex-wrap:wrap}.bmh h2{margin:4px 0}
.bmtools{display:flex;gap:8px;flex-wrap:wrap}.btn.sm{padding:8px 14px;font-size:.88rem}
.bmidx{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 4px}.bmidx a{padding:6px 12px;border-radius:999px;background:var(--paper);color:var(--ledger);text-decoration:none;font-size:.9rem}.bmidx a b{margin-inline-start:4px}
.bmsec{scroll-margin-top:90px}.bmsec h3{border-bottom:2px solid var(--gold);padding-bottom:6px;margin-top:26px}.bmsec h3 small{color:var(--muted);font-weight:400;font-size:.85rem}
.bmq,.bmiv{padding-inline-start:22px}.bmq>li,.bmiv>li{margin:0 0 16px;padding-bottom:12px;border-bottom:1px dashed var(--rule)}
.bq-q{font-weight:700;margin:0 0 6px;overflow-wrap:anywhere}.bq-o{list-style:none;padding:0;margin:0 0 6px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 14px}
.bq-o li{overflow-wrap:anywhere}.bq-o li span{display:inline-block;min-width:22px;color:var(--muted)}.bq-o li.ok{color:var(--good);font-weight:700}
.bq-a{background:rgba(15,122,79,.08);border-inline-start:4px solid var(--good);padding:8px 12px;border-radius:8px;overflow-wrap:anywhere}.bq-a b{display:block}.bq-en{direction:ltr;text-align:left;margin:6px 0 0}
.bq-q{unicode-bidi:plaintext}.bmat.hideans .bq-a{display:none}.bmat.hideans .bq-o li.ok{color:inherit;font-weight:inherit}
@media(max-width:620px){.bq-o{grid-template-columns:minmax(0,1fr)}.bmat{padding:14px}}


.sol{max-width:100%;min-width:0;overflow:hidden;margin:18px 0;border:1px solid var(--rule);border-radius:var(--r);background:var(--sheet)}
.sol>summary{cursor:pointer;padding:12px 16px;font-weight:700;color:var(--ledger);list-style:none;display:flex;align-items:center;gap:8px}
.sol>summary::-webkit-details-marker{display:none}.sol>summary::before{content:"+";display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--ledger);color:#fff;font-size:1rem}
.sol[open]>summary::before{content:"−"}.sol .solb{padding:0 16px 14px}.sol h4{margin:18px 0 8px;color:var(--ledger)}
.task{background:var(--paper);border:1px dashed var(--gold);border-radius:var(--r);padding:12px 16px;margin:16px 0}.task b{color:var(--gold)}.task ol{margin:6px 0 0}

.lnote{display:flex;gap:14px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;background:var(--paper);border:1px solid var(--rule);border-inline-start:4px solid var(--ledger);border-radius:var(--r);padding:14px 16px;margin:22px 0 8px;font-size:.9rem}
.lnote>div{flex:1 1 300px;min-width:0}.lnote b{color:var(--ledger)}.lnote p{margin:6px 0 0;color:var(--muted);line-height:1.8}.lrefs{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center}.lrefs span{color:var(--ink);font-weight:600}.lrefs a{color:var(--ledger)}
.tnote{font-size:.85rem;color:var(--muted);margin-top:12px;line-height:1.8}
.qod{border:1px solid var(--rule);border-radius:var(--r);background:var(--sheet);padding:18px 20px;margin:0 0 28px;border-inline-start:5px solid var(--gold)}
.qodh{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}.qodh>div:first-child{display:flex;gap:10px;align-items:center}
.qodc{font-size:.82rem;background:var(--paper);padding:3px 10px;border-radius:999px;color:var(--ledger)}.qods{font-size:.9rem;color:var(--muted)}.qods b{color:var(--gold);font-size:1.15rem}
.qod h3{margin:12px 0;overflow-wrap:anywhere;unicode-bidi:plaintext}.qodo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.qodo .opt{text-align:start;overflow-wrap:anywhere}
.qodf{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px}
@media(max-width:620px){.je table{min-width:0}.je td.n{width:auto}.sol .solb{padding:0 8px 12px}.qodo{grid-template-columns:minmax(0,1fr)}.qod{padding:14px}}