:root{--bg:#f6f8fb;--card:#fff;--text:#1a1f2b;--muted:#5b6475;--line:#e3e7ee;--brand:#4353d4;--brand-dark:#3241b0;--ok:#1b8f4e;--err:#c62828;--radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:var(--brand)}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:#eef1f6;padding:1px 5px;border-radius:5px}
.site-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 16px;padding:12px 16px;max-width:1280px;margin:0 auto}
.brand{font-weight:700;text-decoration:none;color:var(--text);font-size:18px}
.logo{color:var(--brand);margin-right:4px}
.site-header nav{display:flex;gap:16px;min-width:0;max-width:100%;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.site-header nav::-webkit-scrollbar{display:none}
.site-header nav a{display:inline-block;padding:8px 0;text-decoration:none;color:var(--muted);font-size:15px;line-height:24px}
.site-header nav a:hover{color:var(--brand)}
main{max-width:1280px;margin:0 auto;padding:0 16px 48px}
.hero{text-align:center;padding:24px 0 20px}
h1{font-size:clamp(28px,5vw,42px);margin:0 0 10px;line-height:1.15}
.lead{max-width:720px;margin:0 auto;color:var(--muted);font-size:17px}
.tool{display:grid;grid-template-columns:1fr;gap:20px;margin-top:8px}
@media(min-width:900px){.tool{grid-template-columns:1.1fr .9fr;align-items:start}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.field{margin-bottom:16px}
.row{display:grid;grid-template-columns:1fr;gap:0 14px}
@media(min-width:560px){.row{grid-template-columns:1fr 1fr}}
label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.req,.opt{font-weight:400;color:var(--muted);font-size:12px;margin-left:6px}
input{width:100%;font:inherit;padding:10px 12px;min-height:46px;line-height:1.4;border:1px solid #cdd4df;border-radius:10px;background:#fff;color:var(--text)}
input:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
.hint{display:block;color:var(--muted);font-size:13px;margin-top:5px}
.btn{font:inherit;font-weight:600;padding:11px 16px;border-radius:10px;border:1px solid #cdd4df;background:#fff;color:var(--text);cursor:pointer}
.btn:hover{border-color:var(--brand);color:var(--brand)}
.btn.primary{width:100%;background:var(--brand);border-color:var(--brand);color:#fff;font-size:17px;padding:13px}
.btn.primary:hover{background:var(--brand-dark)}
.privacy-note{text-align:center;color:var(--muted);font-size:13px;margin:12px 0 0}
.error{color:var(--err);background:#fdecec;border:1px solid #f5c2c2;border-radius:10px;padding:10px 12px;font-size:14px}
.result{text-align:center}
.qr-card{display:inline-block;background:#fff;padding:18px 22px 14px;border:2px dashed var(--line);border-radius:12px;max-width:100%}
.qr-title{font-weight:700;font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
#qr-canvas{width:280px;max-width:100%;height:auto;image-rendering:pixelated;display:block;margin:0 auto}
.qr-payee{font-weight:700;font-size:20px;margin-top:10px}
.qr-vpa{font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--muted);font-size:14px;word-break:break-all}
.qr-amount{font-weight:700;font-size:22px;color:var(--ok);margin-top:4px}
.qr-amount:empty{display:none}
.qr-apps{font-size:12px;color:var(--muted);margin-top:10px}
.actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px}
.link-details{margin-top:16px;text-align:left}
.link-details summary{cursor:pointer;color:var(--muted);font-size:14px}
.upi-link{display:block;margin-top:8px;padding:10px;word-break:break-all;background:#eef1f6;border-radius:8px;font-size:13px}
.content{max-width:760px;margin:44px auto 0}
.content h2{font-size:24px;margin:36px 0 12px}
.content h2:first-child{margin-top:0}
.content p,.content li{color:#2b3340}
.steps li{margin-bottom:10px}
.content details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:10px}
.content summary{font-weight:600;cursor:pointer}
.content details p{margin:10px 0 0}
.site-footer{text-align:center;color:var(--muted);font-size:14px;padding:24px 16px 40px;border-top:1px solid var(--line)}
.site-footer a{color:var(--muted)}
.disclaimer{font-size:12px;max-width:640px;margin:8px auto 0}
.page{max-width:760px;margin:0 auto;padding:16px 16px 40px}
.page h1{font-size:32px}
@media print{body{background:#fff}.site-header,.hero,.form,.actions,.link-details,.content,.site-footer{display:none!important}main{padding:0}.tool{display:block}.result{border:0;box-shadow:none}.qr-card{border:0}#qr-canvas{width:70mm}}
.related-list{list-style:none;padding:0;display:grid;gap:10px}
.related-list li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px}
.related-list a{font-weight:600;text-decoration:none}
.related-list small{display:block;color:var(--muted)}
select{width:100%;font:inherit;padding:10px 12px;height:46px;line-height:1.4;border:1px solid #cdd4df;border-radius:10px;background:#fff;color:var(--text)}
select:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
textarea{width:100%;font:inherit;padding:11px 12px;border:1px solid #cdd4df;border-radius:10px;background:#fff;color:var(--text);min-height:92px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}

/* layout fixes: header, controls, wrapping, mobile */
[hidden]{display:none!important}
.brand{white-space:nowrap;flex:0 0 auto;padding:6px 0}
.lang-menu{position:relative;font-size:14px;flex:0 0 auto;margin-left:auto}
.lang-menu summary{list-style:none;cursor:pointer;padding:7px 10px;border:1px solid var(--line);border-radius:8px;color:var(--muted);white-space:nowrap;line-height:24px;background:#fff}
.lang-menu summary::-webkit-details-marker{display:none}
.lang-menu summary:hover{color:var(--brand);border-color:var(--brand)}
.lang-menu ul{position:absolute;right:0;top:calc(100% + 6px);z-index:30;margin:0;padding:6px;list-style:none;min-width:160px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(16,24,40,.12)}
.lang-menu li a{display:block;padding:9px 10px;border-radius:6px;text-decoration:none;color:var(--text);white-space:nowrap}
.lang-menu li a:hover{background:#f3f4f6;color:var(--brand)}
.lang-menu li a[aria-current]{font-weight:600;color:var(--brand)}
@media(max-width:1023px){.site-header nav{order:3;flex:0 0 calc(100% + 32px);margin:-2px -16px 0;padding:0 16px;max-width:none}.brand{flex:1 1 auto}}
textarea{line-height:1.5;resize:vertical;max-width:100%}
input,select,textarea{max-width:100%;min-width:0}
.field,.row>*{min-width:0}
.btn{min-height:44px;line-height:1.2;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-align:center}
.btn.primary{min-height:52px}
.actions .btn{min-height:46px}
.btn:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,a:focus-visible,details:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
code,.upi-link,.hint,.error,.content p,.content li,.content td,.content th,.content dd,.content dt,.qr-vpa,.privacy-note,.disclaimer{overflow-wrap:anywhere}
.card,.content,.hero,.site-footer{min-width:0;max-width:100%}
.content details summary{padding:7px 0}
.link-details summary{padding:9px 0}
.site-footer p{margin:0 0 8px}
@media(max-width:600px){
  .card{padding:16px}
  .btn{min-height:40px}
  .actions .btn{flex:1 1 auto}
  .actions{gap:8px}
  .content h2{font-size:22px;margin-top:30px}
  .lead{font-size:16px}
  .qr-card{padding:14px 12px 12px}
  .site-footer{padding:20px 16px 32px}
}


/* devtools: editors, toolbars, issues, diff */
.content table{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0 20px;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.content th,.content td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.content th{background:#eef0fb;font-weight:600}
.content tr:last-child td{border-bottom:0}
.table-wrap{overflow-x:auto;max-width:100%}
.content pre{background:#1e2230;color:#e8eaf2;padding:12px 14px;border-radius:10px;overflow-x:auto;font-size:13px;line-height:1.5}
.content pre code{background:none;padding:0;color:inherit}
.tool-wide{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:0 1px 2px rgba(16,24,40,.04);margin-top:8px}
.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin:0 0 12px}
.toolbar .btns{display:flex;flex-wrap:wrap;gap:8px}
.toolbar .btn{min-height:40px;padding:8px 14px;font-size:15px}
.toolbar .btn.primary{width:auto;min-height:40px;font-size:15px;padding:8px 18px}
.toolbar label{display:inline-flex;align-items:center;gap:6px;margin:0;font-weight:500;font-size:14px;color:var(--muted);white-space:nowrap}
.toolbar select{width:auto;height:36px;padding:4px 8px;font-size:14px;border-radius:8px}
.toolbar input[type=checkbox]{width:16px;height:16px;min-height:0;margin:0;padding:0}
.toolbar .spacer{flex:1 1 auto}
.panes{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:900px){.panes{grid-template-columns:1fr 1fr}}
.pane{min-width:0}
.pane-h{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin-bottom:6px;font-size:14px}
.pane-t{font-weight:700}
.pane-a{margin-left:auto;display:flex;flex-wrap:wrap;gap:4px 12px}
.lnk{font:inherit;font-size:14px;background:none;border:0;padding:4px 0;color:var(--brand);cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.lnk:hover{color:var(--brand-dark)}
label.lnk{display:inline;font-weight:400;margin:0}
.badge{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.05em;padding:2px 7px;border-radius:999px;background:#eef0fb;color:var(--brand)}
.badge:empty{display:none}
.ed{position:relative;display:flex;border:1px solid #cdd4df;border-radius:10px;background:#fff;overflow:hidden;height:440px;resize:vertical;min-height:180px}
.ed.drop{outline:2px dashed var(--brand);outline-offset:-4px}
.ed:focus-within{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}
.ed-g{flex:0 0 auto;margin:0;padding:8px 8px 8px 10px;min-width:44px;text-align:right;color:#98a1b3;background:#f6f7fb;border-right:1px solid var(--line);font:13px/20px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow:hidden;user-select:none;white-space:pre}
.ed-g b{font-weight:700}
.ed-g .g-error{color:var(--err)}
.ed-g .g-warn{color:#9a6700}
.ed-g .g-hint{color:var(--brand)}
.ed-w{position:relative;flex:1 1 auto;min-width:0;overflow:hidden}
.ed-hl{position:absolute;left:0;right:0;top:0;pointer-events:none;will-change:transform}
.hl{position:absolute;left:0;width:100000px;height:20px}
.hl-error{background:#fde2e2}
.hl-warn{background:#fff4d6}
.hl-hint{background:#e6e9fb}
.ed textarea{position:relative;display:block;width:100%;height:100%;min-height:0;margin:0;border:0;border-radius:0;padding:8px 10px;background:transparent;resize:none;outline:none;box-shadow:none;font:13px/20px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre;overflow:auto;tab-size:2;color:var(--text)}
.ed textarea:focus{outline:none;border:0}
.ed textarea[readonly]{background:transparent}
.status{margin:12px 0 0;padding:10px 12px;border-radius:10px;font-size:15px;background:#f3f5f9;border:1px solid var(--line)}
.status.ok{background:#e9f7ef;border-color:#b9e4c9;color:#14532d}
.status.warn{background:#fff8e6;border-color:#f1dca1;color:#5c4400}
.status.err{background:#fdecec;border-color:#f5c2c2;color:#7f1d1d}
.status .muted,.muted{color:var(--muted)}
.issues{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:6px;max-height:340px;overflow:auto}
.issues li{padding:8px 10px;border-radius:8px;border:1px solid var(--line);border-left:4px solid var(--err);font-size:14px;background:#fff;overflow-wrap:anywhere}
.issues li.sev-warn{border-left-color:#d4a017}
.issues li.sev-hint{border-left-color:var(--brand);background:#f4f5fd}
.issues li small{display:block;color:var(--muted);margin-top:2px}
.issues .at{font:inherit;font-size:13px;font-weight:600;border:0;background:#eef0fb;color:var(--brand);border-radius:6px;padding:2px 7px;cursor:pointer}
.issues .sev{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:0 4px}
.issues li.more{border-left-color:var(--line);color:var(--muted)}
.seg{display:inline-flex;border:1px solid #cdd4df;border-radius:10px;overflow:hidden}
.seg button{font:inherit;font-size:14px;border:0;background:#fff;padding:8px 12px;cursor:pointer;color:var(--muted)}
.seg button+button{border-left:1px solid #cdd4df}
.seg button.on{background:var(--brand);color:#fff}
.changes{margin-top:12px;font-size:14px;max-height:360px;overflow:auto;border:1px solid var(--line);border-radius:10px;padding:6px 12px}
.changes ol{margin:0;padding-left:22px}
.changes li{padding:4px 0;overflow-wrap:anywhere}
.changes .tag{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:1px 6px;border-radius:5px}
.c-add .tag{background:#dcf5e3;color:#14532d}.c-del .tag{background:#fde2e2;color:#7f1d1d}.c-chg .tag{background:#fff1cc;color:#5c4400}
.changes .old{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;background:#fde2e2;padding:0 4px;border-radius:4px}
.changes .new{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;background:#dcf5e3;padding:0 4px;border-radius:4px}
.dnav{display:flex;align-items:center;gap:8px;margin:12px 0 6px;font-size:14px;color:var(--muted)}
.dnav .btn{min-height:34px;padding:4px 12px;font-size:14px}
.diffview{overflow:auto;max-height:75vh;border:1px solid var(--line);border-radius:10px}
.diffview:empty{display:none}
.dt{width:100%;border-collapse:collapse;table-layout:fixed;font:13px/20px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.dt col.cln{width:48px}.dt col.csg{width:20px}
.dt thead th{position:sticky;top:0;background:#f6f7fb;font:600 13px/28px system-ui,sans-serif;text-align:left;padding:0 8px;border-bottom:1px solid var(--line);z-index:1}
.dt td{padding:0 8px;vertical-align:top}
.dt td.ln{color:#98a1b3;text-align:right;background:#f9fafc;user-select:none;padding:0 6px}
.dt td.c{white-space:pre-wrap;word-break:break-all}
.dt.split td.c+td.ln{border-left:1px solid var(--line)}
.dt td.sg{user-select:none;text-align:center;color:var(--muted);padding:0}
.r-del td.c,.r-chg td.c.a{background:#fff0f0}
.r-add td.c,.r-chg td.c.b{background:#eefbf2}
.dt.uni .r-del td.c{background:#fff0f0}.dt.uni .r-add td.c{background:#eefbf2}
.r-del td.ln,.r-chg td.ln{background:#fde7e7}
.r-add td.ln{background:#e2f6e8}
.dt.split .r-chg td.ln+td.c+td.ln,.dt.split .r-add td.ln:first-child{background:#e2f6e8}
.dt.split .r-add td.ln:first-child{background:#f9fafc}
.dt.split .r-del td.c.empty,.dt.split .r-add td.c.empty{background:repeating-linear-gradient(-45deg,#f6f7fb,#f6f7fb 4px,#fff 4px,#fff 8px)}
.c.a .x{background:#f9c5c5;border-radius:2px}
.c.b .x{background:#b6ebc6;border-radius:2px}
.r-ws td.c{background:#fbfbe9}
tr.cur td.ln{box-shadow:inset 3px 0 0 var(--brand)}
.fold td{padding:0;background:#f3f5fb;text-align:center}
.unfold{font:13px/26px system-ui,sans-serif;width:100%;border:0;background:none;color:var(--brand);cursor:pointer}
.unfold:hover{background:#e8ebf9}
.tool-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;list-style:none;padding:0;margin:16px 0}
.tool-links li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.tool-links a{font-weight:600;text-decoration:none}
.tool-links small{display:block;color:var(--muted);font-size:13px}
.related-list{list-style:none;padding:0;display:grid;gap:10px}
.related-list li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 16px}
.related-list a{font-weight:600;text-decoration:none}
.related-list small{display:block;color:var(--muted)}
@media(max-width:600px){.tool-wide{padding:12px;margin-left:-6px;margin-right:-6px}.ed{height:320px}.toolbar .btn{flex:1 1 auto}.pane-a{margin-left:0}}