:root{--bg:#f7f6f2;--card:#fff;--ink:#17201b;--mute:#52605a;--line:#e0ded5;--acc:#0b5d3b;--acc2:#e7f2ec;--warn:#8a3b12;--warnbg:#fdf1e7;--err:#a31621;--r:12px;--sh:0 1px 2px rgba(20,30,25,.06),0 4px 14px rgba(20,30,25,.05);--ur:"Noto Nastaliq Urdu","Jameel Noori Nastaleeq","Noto Naskh Arabic","Segoe UI",Tahoma,serif}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;overflow-x:hidden}
a{color:var(--acc);text-underline-offset:3px}a:hover{color:#06402a}
:focus-visible{outline:3px solid #1a73e8;outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:.6rem 1rem;z-index:99}.skip:focus{left:8px;top:8px}
.wrap{max-width:1040px;margin:0 auto;padding:0 1rem}
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.bar{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;align-items:center;justify-content:space-between;padding:.75rem 0}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:750;font-size:1.15rem;color:var(--ink);text-decoration:none}
.brand svg{width:30px;height:30px}.brand span span{color:var(--acc)}
nav ul{display:flex;flex-wrap:wrap;gap:.25rem .9rem;list-style:none;margin:0;padding:0}
nav a{color:var(--ink);text-decoration:none;padding:.35rem .1rem;font-size:.95rem;border-bottom:2px solid transparent}
nav a:hover,nav a[aria-current=page]{border-color:var(--acc)}
main{padding:1.25rem 0 3rem}
.crumbs{font-size:.88rem;color:var(--mute);margin:.25rem 0 .75rem}.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.35rem}
.crumbs li+li::before{content:"/";margin-right:.35rem;color:var(--line)}
h1{font-size:clamp(1.65rem,4.6vw,2.4rem);line-height:1.2;margin:.2rem 0 .6rem;letter-spacing:-.01em}
h2{font-size:clamp(1.25rem,3.2vw,1.6rem);line-height:1.3;margin:2rem 0 .6rem}h3{font-size:1.1rem;margin:1.2rem 0 .3rem}
p{margin:.6rem 0}.lead{font-size:1.08rem;color:var(--mute);max-width:70ch}
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.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.15rem;box-shadow:var(--sh)}
.card h3{margin-top:0}a.card{display:block;color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--acc);transform:translateY(-2px)}a.card .go{color:var(--acc);font-weight:600}
.ico{width:40px;height:40px;border-radius:10px;background:var(--acc2);color:var(--acc);display:grid;place-items:center;margin-bottom:.6rem}.ico svg{width:22px;height:22px}
.tool{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.15rem;box-shadow:var(--sh);margin:1rem 0}
.row{display:grid;gap:.9rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));align-items:end}
.field{display:flex;flex-direction:column;gap:.3rem}.field label,legend{font-weight:600;font-size:.93rem}
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input:hover,select:hover{border-color:var(--acc)}
.hint{font-size:.85rem;color:var(--mute);margin:.25rem 0 0}
.btns{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.btn{font:inherit;font-weight:600;padding:.6rem 1rem;border-radius:8px;border:1px solid var(--acc);background:var(--acc);color:#fff;cursor:pointer;min-height:44px}
.btn:hover{background:#06402a}.btn.alt{background:#fff;color:var(--acc)}.btn.alt:hover{background:var(--acc2)}.btn.sm{padding:.2rem .6rem;min-height:34px;font-size:.85rem;background:#fff;color:var(--acc)}
.chk{display:flex;gap:.5rem;align-items:center;font-size:.95rem}.chk input{width:20px;height:20px;accent-color:var(--acc)}
fieldset{border:0;padding:0;margin:1rem 0 0;display:flex;flex-wrap:wrap;gap:.6rem 1.4rem}
.err{color:var(--err);font-weight:600;min-height:1.4em;margin:.6rem 0 0}
.result{margin-top:1rem;border-top:1px solid var(--line);padding-top:1rem}
.big{font-size:1.25rem;font-weight:700;margin:0 0 .75rem;overflow-wrap:anywhere}
.rcs{display:grid;gap:.6rem;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.rc{display:flex;flex-direction:column;gap:.15rem;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:.7rem .8rem}
.rc.main{background:var(--acc2);border-color:#b9d8c8}.rc .rl{font-size:.85rem;color:var(--mute)}.rc strong{font-size:1.2rem;overflow-wrap:anywhere}
.rc .btn{align-self:flex-start;margin-top:.3rem}
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.out .lbl{font-size:.85rem;color:var(--mute);font-weight:600}.out p{margin:.2rem 0 .5rem;font-size:1.1rem;font-weight:600;overflow-wrap:anywhere}
.ur{direction:rtl;text-align:right;font-family:var(--ur);line-height:2.2;font-size:1.25rem!important}
.note{background:var(--warnbg);border:1px solid #efd3b8;color:var(--warn);border-radius:10px;padding:.7rem .9rem;font-size:.93rem}
.tw{overflow-x:auto;margin:.8rem 0;border:1px solid var(--line);border-radius:10px;background:#fff}
table{border-collapse:collapse;width:100%;min-width:480px}th,td{padding:.55rem .75rem;text-align:left;border-bottom:1px solid var(--line);font-size:.95rem}th{background:var(--acc2)}tr:last-child td{border:0}
code,.formula{background:#eef0ec;border-radius:6px;padding:.1rem .4rem;font-family:ui-monospace,Consolas,monospace;font-size:.92em}
.formula{display:block;padding:.6rem .8rem;margin:.5rem 0}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.2rem .9rem;margin:.5rem 0}summary{cursor:pointer;font-weight:600;padding:.6rem 0}
.meta{font-size:.88rem;color:var(--mute)}
.ad-slot{margin:1.5rem 0;min-height:0}.ad-slot[hidden]{display:none}
footer.site{background:var(--card);border-top:1px solid var(--line);padding:1.5rem 0;font-size:.93rem;color:var(--mute)}
footer .cols{display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}footer ul{list-style:none;padding:0;margin:.3rem 0}footer li{margin:.2rem 0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.print-only{display:none}
@media print{body{background:#fff}header.site,footer.site,main>*:not(.print-keep),.crumbs,.skip{display:none!important}.print-only{display:block!important}.print-only .ur{font-size:16pt!important}.print-only p{font-size:14pt}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
textarea{resize:vertical;min-height:140px}
.herosplit{display:grid;grid-template-columns:104px minmax(0,1fr);gap:1rem;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:1rem;box-shadow:var(--sh);margin:.5rem 0 1.25rem}
.herosplit .hs-text h1{font-size:clamp(1.3rem,3.4vw,2.25rem);margin-top:0}
.herosplit .lead{font-size:1.02rem;margin-bottom:0}
.hs-img{margin:0}.hs-img img{display:block;width:100%;height:auto;aspect-ratio:1/1;border-radius:14px;background:var(--acc2)}
@media(max-width:480px){.herosplit{grid-template-columns:76px minmax(0,1fr);gap:.75rem;padding:.85rem}.herosplit .lead{font-size:.95rem}}
@media(min-width:820px){.herosplit{grid-template-columns:200px minmax(0,1fr);gap:1.75rem;padding:1.5rem 1.75rem}}