:root{color-scheme:light}

/* Layout: one narrow column like a printed form. A tab strip picks one of three tools; each tool is a form block with a result slip beneath it. */
:root {
  --bg: #F2F5F9;
  --surface: #FFFFFF;
  --fg: #0E1B33;
  --muted: #55627A;
  --line: #D5DCE8;
  --accent: #0A6E55;
  --accent-ink: #FFFFFF;
  --signal: #C9650A;
  --ok-bg: #E3F4EC;
  --bad: #A3281A;
  --bad-bg: #FBE9E6;
  --warn: #8A4B00;
  --warn-bg: #FFF1DB;
  --font-display: "Martel", "Noto Serif Devanagari", Georgia, serif;
  --font-body: "Mukta", "Noto Sans Devanagari", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}



* { box-sizing: border-box; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  padding-block: 24px 48px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.wrap { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; line-height: 1.35; margin: 0; }
p { margin: 0; }
a { color: var(--accent); text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.top { display: flex; flex-direction: column; gap: 8px; }
.eyebrow { font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em; color: var(--signal); }
h1 { font-size: clamp(28px, 7vw, 38px); font-weight: 800; }
.lede { color: var(--muted); max-width: 60ch; }

.tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.tab {
  font: inherit; font-weight: 700; font-size: 15px; line-height: 1.35;
  min-height: 52px; padding: 8px 6px; cursor: pointer;
  background: var(--surface); color: var(--fg);
  border: 1px solid var(--line); border-radius: 10px;
}
.tab[aria-selected="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px 18px; display: flex; flex-direction: column; gap: 16px; }
.panel h2 { font-size: 22px; font-weight: 800; }
.sub { color: var(--muted); font-size: 15px; }

.seg { position: relative; display: flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; width: max-content; max-width: 100%; background: var(--surface); }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label { min-height: 44px; min-width: 76px; padding: 8px 18px; display: flex; align-items: center; justify-content: center; text-align: center; cursor: pointer; font-weight: 500; line-height: 1.3; }
.seg input:checked + label { background: var(--accent); color: var(--accent-ink); font-weight: 700; }
.seg input:focus-visible + label { outline: 2px solid var(--fg); outline-offset: -4px; }
.seg.wide { width: 100%; }
.seg.wide label { flex: 1; }

.q { border-top: 1px solid var(--line); padding-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.qt { font-weight: 500; }
.hint { font-size: 14px; color: var(--muted); line-height: 1.55; }

label.lbl { display: block; font-weight: 500; margin-bottom: 4px; }
.field {
  font: inherit; width: 100%; min-height: 46px; padding: 8px 12px;
  background: var(--surface); color: var(--fg);
  border: 1px solid var(--line); border-radius: 8px;
}
.field.short { max-width: 180px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 460px) { .grid2 { grid-template-columns: minmax(0, 1fr); } }
.row { display: flex; gap: 10px; align-items: end; flex-wrap: wrap; }

.btn {
  font: inherit; font-weight: 700; min-height: 48px; padding: 10px 22px; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 10px; align-self: flex-start;
}
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); min-height: 46px; padding: 8px 16px; }

.slip { border: 1px dashed var(--line); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 10px; background: var(--bg); }
.panel[hidden], .slip[hidden] { display: none; }
.tag { align-self: flex-start; font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; padding: 3px 12px; border-radius: 999px; }
.tag.ok { background: var(--ok-bg); color: var(--accent); }
.tag.no { background: var(--bad-bg); color: var(--bad); }
.tag.chk { background: var(--warn-bg); color: var(--warn); }
.slip h3 { font-size: 18px; font-weight: 600; }
.slip ul { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 4px; }
.slip .label { font-weight: 700; font-size: 14px; }
.small { font-size: 14px; color: var(--muted); line-height: 1.6; }
.err { color: var(--bad); font-weight: 500; }

.big { font-family: var(--font-display); font-size: clamp(24px, 6.4vw, 32px); font-weight: 800; line-height: 1.4; }
.big .u { font-size: .55em; font-weight: 600; color: var(--muted); margin: 0 .2em 0 0; }
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 16px; margin: 0; }
@media (max-width: 460px) { .stats { grid-template-columns: minmax(0, 1fr); } }
.stats div { border-top: 1px solid var(--line); padding-top: 6px; }
.stats dt { font-size: 13px; color: var(--muted); }
.stats dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.pct { font-family: var(--font-mono); font-size: clamp(30px, 9vw, 40px); font-weight: 500; font-variant-numeric: tabular-nums; }

.card2 { border-top: 1px solid var(--line); padding-top: 18px; display: flex; flex-direction: column; gap: 14px; }
.card2 h3 { font-size: 18px; font-weight: 800; }

.faq { display: flex; flex-direction: column; gap: 4px; }
.faq h2 { font-size: 20px; font-weight: 800; margin-bottom: 8px; }
details { border-top: 1px solid var(--line); padding: 10px 0; }
summary { cursor: pointer; font-weight: 700; }
details p { margin-top: 6px; color: var(--muted); }

.foot { font-size: 13px; color: var(--muted); line-height: 1.6; border-top: 1px solid var(--line); padding-top: 14px; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

body{margin:0}[hidden]{display:none!important}.foot-links{display:flex;flex-wrap:wrap;gap:4px 16px;margin-top:10px}.foot p+p,.foot nav+p{margin-top:8px}
/* ---- added for multi-page site ---- */
.site-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}
.brand{font-family:var(--font-display);font-weight:800;font-size:20px;color:var(--fg);text-decoration:none}
.head-r{display:flex;gap:8px;align-items:center}
.langsw{font-weight:700;text-decoration:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;min-height:44px;display:inline-flex;align-items:center;background:var(--surface)}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:8px 14px;min-height:44px;display:inline-flex;align-items:center;font-weight:700;background:var(--surface)}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;right:0;z-index:5;margin-top:6px;width:min(300px,calc(100vw - 32px));background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:8px;display:flex;flex-direction:column}
.menu nav a{padding:10px 12px;min-height:44px;display:flex;align-items:center;text-decoration:none;color:var(--fg);border-radius:8px}
.menu nav a:hover,.menu nav a[aria-current]{background:var(--bg);color:var(--accent)}
details.menu{border-top:0;padding:0}
.crumb{font-size:14px;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (max-width:520px){.cards{grid-template-columns:minmax(0,1fr)}}
.card{display:flex;flex-direction:column;gap:4px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--fg)}
.card strong{font-family:var(--font-display);font-size:17px;line-height:1.4}
.card span{color:var(--muted);font-size:14px;line-height:1.55}
.card:hover{border-color:var(--accent)}
.grp{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--signal);margin:6px 0 -4px}
.prose{display:flex;flex-direction:column;gap:12px}
.prose h2{font-size:20px;font-weight:800;margin-top:6px}
.prose h3{font-size:17px;font-weight:700}
.prose ul{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:4px}
.crow{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding:10px 0;align-items:center}
.ctime{text-align:right;font-size:18px}
.clock{font-family:var(--font-mono);font-size:clamp(34px,10vw,52px);font-variant-numeric:tabular-nums;font-weight:500;line-height:1.2}
.chips{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;list-style:none;margin:0;padding:0}
.chips li{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:15px}
.btn.ghost[disabled]{opacity:.5}
.btnrow{display:flex;gap:10px;flex-wrap:wrap}
.src{font-size:14px;color:var(--muted);line-height:1.6;border-left:3px solid var(--signal);padding-left:12px}
select.field{appearance:auto}

/* typed text must stay visible in every theme, including when a field is focused (Android dark mode) */
:root{color-scheme:light dark}
:root[data-theme="light"]{color-scheme:light}
.field,.field:focus,.field:active,.field:hover{background-color:var(--surface);color:var(--fg);-webkit-text-fill-color:var(--fg);caret-color:var(--accent);opacity:1}
.field:focus{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:1px}
.field:-webkit-autofill,.field:-webkit-autofill:focus{-webkit-text-fill-color:var(--fg);box-shadow:0 0 0 1000px var(--surface) inset;caret-color:var(--accent)}
.field::placeholder{color:var(--muted);-webkit-text-fill-color:var(--muted);opacity:1}
.field option{background:var(--surface);color:var(--fg)}

:root{box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{background:var(--bg);padding-top:max(16px,0px)}


.bt-tool{display:grid;gap:14px}.bt-tool label{display:block;font-weight:650;margin:8px 0 5px}.bt-tool input[type=file],.bt-tool input[type=text],.bt-tool input[type=number],.bt-tool select{width:100%;box-sizing:border-box;padding:12px;border:1px solid var(--line,#ddd);border-radius:12px;background:var(--panel,#fff);color:inherit}.bt-tool .btnrow{display:flex;gap:9px;flex-wrap:wrap;margin-top:12px}.bt-tool .preview{max-width:100%;max-height:360px;display:block;margin:12px auto;border-radius:12px}.bt-tool canvas{max-width:100%;height:auto}.bt-tool .status{font-size:.92rem;overflow-wrap:anywhere}.bt-tool .qrwrap{text-align:center;padding:12px}.bt-tool .qrwrap canvas,.bt-tool .qrwrap img{max-width:100%}.bt-tool .hint{opacity:.78;font-size:.9rem}

.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:10px 14px;border-radius:0 0 8px 8px;z-index:20}.skip:focus{left:12px}
.langsw{color:var(--accent);cursor:pointer;font:inherit;font-weight:700}
/* ===== Website design layer ===== */
:root{--hero-a:#0A6E55;--hero-b:#0B3C5D;--foot-bg:#0E1B33;--foot-fg:#C5D0E4;--shadow:0 1px 2px rgba(14,27,51,.06),0 8px 24px rgba(14,27,51,.06)}


body{padding:0;display:flex;flex-direction:column;min-height:100vh}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);background:var(--surface);z-index:31}
.container{width:100%;max-width:1120px;margin:0 auto;padding-inline:16px}
.container.narrow{max-width:860px}
@media(min-width:720px){.container{padding-inline:24px}}
/* header */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(14,27,51,.04);display:block;padding:0}
.site-head .bar{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:12px;padding:8px 16px;min-height:60px}
@media(min-width:720px){.site-head .bar{padding-inline:24px}}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--fg)}
.logo{width:36px;height:36px;border-radius:10px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-family:var(--font-display);font-weight:800;font-size:20px}
.head-r{margin-left:auto}
.topnav{display:none;gap:2px;margin-left:auto}
.topnav a{padding:8px 12px;border-radius:8px;font-weight:700;font-size:15px;text-decoration:none;color:var(--fg)}
.topnav a:hover{background:var(--bg);color:var(--accent)}
@media(min-width:980px){.topnav{display:flex}.head-r{margin-left:0}}
.menu nav{max-height:70vh;overflow:auto}
.langsw{color:var(--accent)}
/* hero */
.hero{background:linear-gradient(135deg,var(--hero-a),var(--hero-b));color:#fff;padding:44px 0 34px}
.hero .top{gap:12px}.hero .eyebrow{color:#FFD9A8}
.hero h1{color:#fff;font-size:clamp(30px,6vw,48px);max-width:20ch}
.hero .lede{color:rgba(255,255,255,.9);font-size:18px;max-width:62ch}
.search{margin-top:16px;max-width:560px}
.search input{width:100%;min-height:54px;padding:12px 18px;border-radius:14px;border:0;font:inherit;font-size:17px;background:#fff;color:#0E1B33;-webkit-text-fill-color:#0E1B33;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.search input::placeholder{color:#55627A;-webkit-text-fill-color:#55627A}
.trust{display:flex;flex-wrap:wrap;gap:6px 20px;list-style:none;padding:0;margin:18px 0 0;font-size:14px;color:rgba(255,255,255,.92)}
/* inner page header */
.pagehead{background:linear-gradient(180deg,var(--surface),var(--bg));border-bottom:1px solid var(--line);padding:20px 0 18px}
.pagehead .top{gap:6px}.pagehead h1{font-size:clamp(26px,5vw,36px)}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:6px}.crumbs a{color:var(--muted)}
main.container{padding-block:28px 56px;display:flex;flex-direction:column;gap:24px;flex:1}
/* cards */
.cards{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{padding:18px;gap:6px;box-shadow:var(--shadow);transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-2px)}
.ico{font-style:normal;font-size:26px;width:46px;height:46px;display:grid;place-items:center;background:var(--bg);border-radius:12px;margin-bottom:6px}
.grp{font-family:var(--font-display);font-size:20px;font-weight:800;letter-spacing:0;color:var(--fg);margin:12px 0 -6px;scroll-margin-top:84px}
.noresult{text-align:center;color:var(--muted);padding:24px}
.panel{box-shadow:var(--shadow);padding:22px}
@media(min-width:720px){.panel{padding:28px}}
main.home .prose{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px}
/* footer */
.sitefoot{background:var(--foot-bg);color:var(--foot-fg);padding:40px 0 24px;margin-top:auto}
.sitefoot a{color:var(--foot-fg);text-decoration:none}.sitefoot a:hover{color:#fff;text-decoration:underline}
.fgrid{display:grid;gap:28px;grid-template-columns:1fr}
@media(min-width:760px){.fgrid{grid-template-columns:1.1fr 1.7fr 1fr}}
.fcol h3{color:#fff;font-size:16px;margin-bottom:10px}
.fcol p{font-size:14px;line-height:1.7}
.fcol ul{list-style:none;padding:0;margin:0;display:grid;gap:6px;font-size:15px}
.fcol.tools ul{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
.fnote{border-top:1px solid rgba(255,255,255,.14);margin-top:28px;padding-top:16px;font-size:13px;line-height:1.7}
.brand,.langsw,.menu summary{white-space:nowrap}
.site-head .bar{gap:8px}
@media(max-width:480px){.brand{font-size:18px;gap:8px}.logo{width:32px;height:32px;font-size:18px}.langsw,.menu summary{padding:6px 10px;min-height:40px;font-size:15px}.head-r{gap:6px}}
.hero h1{max-width:none}

/* ===== Professional polish layer ===== */
::selection{background:var(--accent);color:var(--accent-ink)}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;line-height:1.65}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
/* header */
.site-head{backdrop-filter:saturate(1.2) blur(8px)}
.brand{font-size:19px;letter-spacing:-.01em}
.logo{box-shadow:0 2px 6px rgba(10,110,85,.35)}
.langsw,.menu summary{transition:border-color .15s,background .15s}
.langsw:hover,.menu summary:hover{border-color:var(--accent);background:var(--bg)}
/* hero */
.hero{position:relative;overflow:hidden;padding:56px 0 48px}
.hero::before{content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),rgba(255,255,255,0) 68%);pointer-events:none}
.hero::after{content:"";position:absolute;left:-90px;bottom:-160px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(201,101,10,.22),rgba(201,101,10,0) 70%);pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero .eyebrow{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.06em;margin-bottom:14px}
.hero h1{line-height:1.2;letter-spacing:-.01em;margin:0 0 12px}
.hero .lede{line-height:1.65;margin:0}
.search{margin-top:24px;max-width:600px}
.search input{min-height:58px;padding-left:20px;border-radius:16px}
.search input:focus{outline:3px solid #FFD9A8;outline-offset:2px}
.trust{gap:8px;margin-top:22px}
.trust li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:6px 14px;font-size:13px}
/* section headings */
.grp{display:flex;align-items:center;gap:10px;margin:18px 0 -4px}
.grp::before{content:"";width:5px;height:22px;border-radius:3px;background:var(--accent)}
/* cards */
.card{position:relative;border-radius:16px;padding:20px 20px 18px;gap:4px;border:1px solid var(--line);transition:transform .18s,border-color .18s,box-shadow .18s}
.card:hover{border-color:var(--accent);box-shadow:0 2px 4px rgba(14,27,51,.06),0 14px 32px rgba(10,110,85,.14)}
.card:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.card strong{font-size:17px;padding-right:26px}
.card::after{content:"→";position:absolute;right:18px;top:22px;color:var(--accent);font-weight:700;opacity:.45;transition:transform .18s,opacity .18s}
.card:hover::after{transform:translateX(4px);opacity:1}
.ico{width:48px;height:48px;border-radius:14px;margin-bottom:10px;background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent)}
.ico svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
/* content blocks */
main.home .prose{border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.panel{border-radius:16px}
.pagehead h1{letter-spacing:-.01em}
/* footer */
.sitefoot{padding:48px 0 28px;border-top:4px solid var(--accent)}
.fcol h3{font-size:15px;letter-spacing:.02em}
.sitefoot a{transition:color .15s}
@media(max-width:480px){.hero{padding:40px 0 36px}.card{padding:18px}.trust li{font-size:12.5px}}
/* category nav pills */
.catnav{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.catnav a{background:#fff;color:#0E1B33;text-decoration:none;font-weight:700;font-size:14px;padding:7px 15px;border-radius:999px;transition:transform .15s,box-shadow .15s}
.catnav a:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(0,0,0,.22)}
.catnav a:focus-visible{outline:3px solid #FFD9A8;outline-offset:2px}
.hero h1{max-width:30ch}
@media(max-width:480px){.hero h1{max-width:none}}