/* style.css */
@font-face{font-family:"Vazirmatn";src:url("/assets/fonts/Vazirmatn.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap}
:root{
  --bg:#f2f5f7;--surface:#fff;--ink:#14202b;--muted:#566474;--line:#d9e1e8;
  --brand:#0a5c5e;--accent:#ff8a00;--accent-ink:#1b1204;
  --c-text:#0a5c5e;--c-web:#3a4fd7;--c-image:#9a2f6e;--c-net:#a14a00;
  --t-text:#e3f1f1;--t-web:#e8ebfb;--t-image:#f7e7f0;--t-net:#fbeedd;
  --focus:#ff8a00;--r-lg:18px;--r-md:12px;--r-sm:8px;
  --font:"Vazirmatn",Tahoma,"Segoe UI",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0e1419;--surface:#151d24;--ink:#e8eef3;--muted:#9aa9b7;--line:#26323d;
  --brand:#3cc3c6;--c-text:#5fd3d6;--c-web:#8c9bff;--c-image:#f08cc4;--c-net:#ffb15c;
  --t-text:#12302f;--t-web:#1a2040;--t-image:#35172a;--t-net:#3a2a12;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0e1419;--surface:#151d24;--ink:#e8eef3;--muted:#9aa9b7;--line:#26323d;
  --brand:#3cc3c6;--c-text:#5fd3d6;--c-web:#8c9bff;--c-image:#f08cc4;--c-net:#ffb15c;
  --t-text:#12302f;--t-web:#1a2040;--t-image:#35172a;--t-net:#3a2a12;color-scheme:dark}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1rem;line-height:1.9;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
img,svg{max-width:100%}
a{color:var(--brand);text-underline-offset:.25em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}
.skip{position:absolute;inset-inline-start:1rem;top:-4rem;background:var(--ink);color:var(--bg);padding:.5rem 1rem;border-radius:var(--r-sm);z-index:100}
.skip:focus{top:1rem}
.wrap{width:min(1120px,100% - 2rem);margin-inline:auto}
.narrow{width:min(780px,100% - 2rem);margin-inline:auto}
h1,h2,h3{line-height:1.45;margin:0 0 .6em;font-weight:800}
h1{font-size:clamp(1.7rem,4.2vw,2.6rem);font-weight:900}
h2{font-size:clamp(1.25rem,2.6vw,1.6rem)}
h3{font-size:1.1rem}
p{margin:0 0 1em}
.muted{color:var(--muted)}

/* header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.bar{display:flex;align-items:center;gap:1rem;min-height:64px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:900;font-size:1.25rem;color:var(--ink);text-decoration:none}
.brand svg{width:34px;height:34px;flex:none}
.nav{display:flex;gap:.25rem;margin-inline-start:auto;align-items:center;flex-wrap:wrap}
.nav a{color:var(--ink);text-decoration:none;padding:.45rem .8rem;border-radius:var(--r-sm);font-weight:600;font-size:.95rem}
.nav a:hover,.nav a[aria-current="page"]{background:var(--bg)}
.icon-btn{background:none;border:1px solid var(--line);color:var(--ink);width:40px;height:40px;border-radius:var(--r-sm);cursor:pointer;display:grid;place-items:center;font:inherit}
.icon-btn:hover{background:var(--bg)}
@media (max-width:720px){.bar{flex-wrap:wrap;padding-block:.5rem}.nav{order:3;width:100%;margin:0;overflow-x:auto;flex-wrap:nowrap}.icon-btn{margin-inline-start:auto}}

/* hero */
.hero{padding:clamp(2.5rem,7vw,5rem) 0 1.5rem}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:44ch;margin-bottom:1.6rem}
.search{position:relative;max-width:640px}
.search input{width:100%;font:inherit;font-size:1.1rem;padding:1rem 1rem 1rem 3.2rem;border:2px solid var(--ink);border-radius:var(--r-lg);background:var(--surface);color:var(--ink)}
.search svg{position:absolute;left:1rem;top:50%;translate:0 -50%;width:22px;height:22px;color:var(--muted);pointer-events:none}
.search-meta{margin-top:.6rem;font-size:.9rem;color:var(--muted);min-height:1.6em}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.chip{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:.35rem .9rem;border-radius:99px;font:inherit;font-size:.9rem;font-weight:600;cursor:pointer;text-decoration:none}
.chip:hover,.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

/* tool grid */
.cat{margin:2.5rem 0}
.cat-head{display:flex;align-items:baseline;gap:1rem;border-bottom:3px solid var(--cat,var(--brand));padding-bottom:.4rem;margin-bottom:1rem;flex-wrap:wrap}
.cat-head h2{margin:0;color:var(--cat)}
.cat-head a{margin-inline-start:auto;font-size:.9rem;font-weight:600}
.cat[data-cat="text"],.tile[data-cat="text"]{--cat:var(--c-text);--tint:var(--t-text)}
.cat[data-cat="web"],.tile[data-cat="web"]{--cat:var(--c-web);--tint:var(--t-web)}
.cat[data-cat="image"],.tile[data-cat="image"]{--cat:var(--c-image);--tint:var(--t-image)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:.9rem;list-style:none;padding:0;margin:0}
.tile{display:flex;gap:.8rem;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:1rem;text-decoration:none;color:var(--ink);height:100%;transition:border-color .15s,background .15s}
.tile:hover{border-color:var(--cat);background:var(--tint)}
.tile .ico{flex:none;width:44px;height:44px;border-radius:var(--r-sm);background:var(--tint);color:var(--cat);display:grid;place-items:center}
.tile .ico svg{width:24px;height:24px}
.tile b{display:block;font-size:1rem;line-height:1.5}
.tile span.d{display:block;font-size:.85rem;color:var(--muted);line-height:1.7;margin-top:.15rem}
.hidden{display:none!important}

/* tool page */
.crumbs{font-size:.88rem;color:var(--muted);padding:1.2rem 0 .4rem}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;margin:0;padding:0}
.crumbs li+li::before{content:"‹";margin-inline-end:.4rem}
.tool-head{padding:.5rem 0 1.2rem}
.tool-head p{color:var(--muted);max-width:60ch;margin:0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(1rem,3vw,1.6rem);margin-bottom:1.5rem}
.field{display:block;margin-bottom:1rem}
.field>span{display:block;font-weight:700;font-size:.92rem;margin-bottom:.3rem}
.field small{display:block;color:var(--muted);font-size:.82rem;margin-top:.25rem}
input[type=text],input[type=url],input[type=number],input[type=search],select,textarea{width:100%;font:inherit;padding:.65rem .8rem;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:3px solid var(--focus);outline-offset:1px;border-color:var(--ink)}
textarea{min-height:170px;resize:vertical;line-height:1.8}
.code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9rem}
textarea.code,input.code,.ltr{direction:ltr;text-align:left}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}
.btns{display:flex;flex-wrap:wrap;gap:.6rem;margin:.4rem 0 1rem}
.btn{font:inherit;font-weight:700;border:1px solid var(--ink);background:var(--surface);color:var(--ink);padding:.6rem 1.1rem;border-radius:var(--r-sm);cursor:pointer;text-decoration:none;display:inline-block}
.btn:hover{background:var(--bg)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(.95)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.check{display:flex;gap:.5rem;align-items:center;margin:.3rem 0 .3rem 1.2rem;font-size:.95rem}
.check input{width:1.1rem;height:1.1rem;accent-color:var(--brand)}
.checks{display:flex;flex-wrap:wrap;margin-bottom:.6rem}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.7rem;margin-top:1rem}
.stat{background:var(--bg);border-radius:var(--r-sm);padding:.7rem .9rem}
.stat b{display:block;font-size:1.5rem;line-height:1.3;font-weight:900;color:var(--brand)}
.stat span{font-size:.85rem;color:var(--muted)}
.result{background:var(--bg);border:1px dashed var(--line);border-radius:var(--r-sm);padding:.9rem;word-break:break-word;min-height:3rem}
.msg{padding:.7rem .9rem;border-radius:var(--r-sm);font-size:.92rem;margin:.5rem 0}
.msg.err{background:#fdecec;color:#8a1f1f}.msg.ok{background:#e6f5ec;color:#14532d}
:root[data-theme="dark"] .msg.err{background:#3a1717;color:#ffb4b4}
:root[data-theme="dark"] .msg.ok{background:#12301f;color:#a7f0c0}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .msg.err{background:#3a1717;color:#ffb4b4}:root:not([data-theme="light"]) .msg.ok{background:#12301f;color:#a7f0c0}}
table.t{width:100%;border-collapse:collapse;font-size:.92rem}
table.t th,table.t td{text-align:start;padding:.5rem .6rem;border-bottom:1px solid var(--line);vertical-align:top}
table.t td.code{direction:ltr;text-align:left;word-break:break-all}
.table-wrap{overflow-x:auto}
.serp{background:#fff;color:#202124;border-radius:var(--r-sm);padding:1rem;direction:rtl;border:1px solid var(--line)}
.serp .u{font-size:.82rem;color:#4d5156;direction:ltr;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.serp .tt{font-size:1.2rem;color:#1a0dab;margin:.1rem 0;line-height:1.5}
.serp .ds{font-size:.9rem;color:#4d5156;line-height:1.7}
.counter{font-size:.8rem;color:var(--muted)}.counter.bad{color:#b42318;font-weight:700}
.dropzone{border:2px dashed var(--line);border-radius:var(--r-md);padding:2rem 1rem;text-align:center;cursor:pointer;background:var(--bg)}
.dropzone.drag,.dropzone:hover{border-color:var(--brand)}
.preview{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1rem}
.preview img,.preview canvas{max-width:100%;height:auto;border-radius:var(--r-sm);border:1px solid var(--line);background:#e9eef2}
.swatch{height:90px;border-radius:var(--r-md);border:1px solid var(--line)}
.meter{height:8px;background:var(--line);border-radius:99px;overflow:hidden}.meter i{display:block;height:100%;width:0;background:#c2410c;transition:width .2s,background .2s}
.qr-out{display:grid;place-items:center;background:#fff;border-radius:var(--r-md);padding:1rem;min-height:200px}

/* content */
.content{margin:2rem 0}
.content ol,.content ul{padding-inline-start:1.4rem}
.content li{margin-bottom:.4rem}
details.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:.6rem}
details.faq summary{cursor:pointer;padding:.8rem 1rem;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:1rem}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-weight:900;color:var(--brand)}
details.faq[open] summary::after{content:"−"}
details.faq div{padding:0 1rem 1rem}
.related{margin:2.5rem 0}
.prose h2{margin-top:1.8em}

/* footer */
.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:3rem;padding:2rem 0;font-size:.92rem}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.foot ul{list-style:none;margin:0;padding:0}.foot li{margin-bottom:.3rem}
.foot h2{font-size:1rem}
@media (max-width:720px){.foot{grid-template-columns:1fr}}
.toast{position:fixed;bottom:1.2rem;left:50%;translate:-50% 0;background:var(--ink);color:var(--bg);padding:.6rem 1.2rem;border-radius:99px;font-size:.9rem;opacity:0;pointer-events:none;transition:opacity .2s;z-index:200}
.toast.show{opacity:1}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media print{.site-header,.site-footer,.btns,.related{display:none}}

[hidden]{display:none!important}
.mt{margin-top:.8rem}
.end{align-self:end}
.prose{max-width:72ch}
.hero h1{max-width:26ch}

.nav a{white-space:nowrap}
.panel>p:last-child{margin-bottom:0}
.search input::placeholder{color:var(--muted);opacity:1}

.cat[data-cat="net"],.tile[data-cat="net"]{--cat:var(--c-net);--tint:var(--t-net)}
.ip-strip{display:inline-flex;align-items:center;gap:.6rem;margin-top:1.2rem;padding:.55rem 1rem;border:1px solid var(--line);border-radius:99px;background:var(--surface);color:var(--ink);text-decoration:none;font-size:.95rem;min-height:44px}
.ip-strip b{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:1rem;min-width:7.5em;text-align:left}
.ip-strip .go{color:var(--brand);font-weight:700;font-size:.85rem}
.ip-strip:hover{border-color:var(--c-net)}
.ip-label{font-size:1rem;color:var(--muted);margin:0 0 .2rem}
.ip-big{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:clamp(1.8rem,7vw,3.2rem);font-weight:800;line-height:1.3;margin:.2rem 0 .4rem;word-break:break-all;text-align:right;direction:ltr;unicode-bidi:plaintext}
.updated{font-size:.88rem}
.badge{display:inline-block;padding:.1rem .6rem;border-radius:99px;font-size:.82rem;font-weight:700}
.badge.ok{background:#e6f5ec;color:#14532d}.badge.bad{background:#fdecec;color:#8a1f1f}
.hop{border:1px solid var(--line);border-radius:var(--r-md);padding:.8rem 1rem;margin-bottom:.8rem;background:var(--bg)}
.hop h3{margin:0 0 .3rem;font-size:1rem;word-break:break-all}
pre.raw{direction:ltr;text-align:left;white-space:pre-wrap;word-break:break-word;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);padding:.8rem;max-height:420px;overflow:auto;font-size:.82rem}