@import url('https://fonts.googleapis.com/css2?family=Lexend:wght@300..800&display=swap');
:root{--navy:#0b2a4a;--teal:#00a99d;--amber:#f5a623;--bg:#f4f8fb;--card:#fff;--ink:#1d2b38;--mut:#5b6b7a;--line:#d5e2ec;--soft:#eef4f8;--acc-ink:#007d74;--shadow:0 6px 24px rgba(11,42,74,.08);--r:14px;--maxw:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Lexend",sans-serif;background:var(--bg);color:var(--ink);line-height:1.6;font-size:16px}
a{color:var(--acc-ink);text-decoration:none}a:hover{text-decoration:underline}
img,canvas{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.skip{position:absolute;left:-999px;top:0;background:var(--teal);color:#fff;padding:8px 12px;z-index:100}.skip:focus{left:8px}
/* header */
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(0,0,0,.2)}
.site-header .wrap{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:22px;letter-spacing:.2px}.logo:hover{text-decoration:none}
.logo i{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--teal),#0e6aa8);display:grid;place-items:center;font-style:normal;font-size:15px;color:#fff}
.logo small{display:block;font-weight:400;font-size:10.5px;color:#9fc0d8;letter-spacing:.3px;margin-top:-4px}
.hsearch{flex:1;max-width:460px;position:relative}
.hsearch input{width:100%;padding:10px 14px 10px 38px;border-radius:999px;border:1px solid #1f4a73;background:#12385f;color:#fff;font-size:15px}
.hsearch input::placeholder{color:#8fb0cc}.hsearch:before{content:"\1F50D";position:absolute;left:13px;top:9px;font-size:14px;opacity:.8}
.results{position:absolute;top:46px;left:0;right:0;background:var(--card);color:var(--ink);border-radius:12px;box-shadow:var(--shadow);max-height:380px;overflow:auto;display:none;border:1px solid var(--line)}
.results.open{display:block}.results a{display:flex;justify-content:space-between;gap:10px;padding:10px 14px;color:var(--ink);border-bottom:1px solid var(--line)}.results a:hover,.results a.sel{background:var(--soft);text-decoration:none}.results small{color:var(--mut)}
nav.main{display:flex;gap:4px;margin-left:auto;align-items:center}
nav.main>a,nav.main .dd>button{color:#dbe9f5;background:none;border:0;font:inherit;font-size:15px;padding:8px 12px;border-radius:8px;cursor:pointer}
nav.main>a:hover,nav.main .dd>button:hover{background:#12385f;text-decoration:none;color:#fff}
.dd{position:relative}.dd .menu{position:absolute;right:0;top:44px;background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:12px;display:none;grid-template-columns:repeat(3,200px);gap:2px}
.dd.open .menu{display:grid}.menu a{padding:8px 10px;border-radius:8px;color:var(--ink);font-size:14.5px}.menu a:hover{background:var(--soft);text-decoration:none}
@media(max-width:980px){.site-header .wrap{height:auto;min-height:64px;flex-wrap:wrap;gap:4px 8px;padding-top:8px;padding-bottom:8px}.hsearch{max-width:none;min-width:120px}nav.main{order:3;flex:1 0 100%;margin:0;justify-content:flex-start;align-items:center;flex-wrap:wrap;gap:0 4px}nav.main>a.hide-m,.dd{display:block}nav.main>a,nav.main .dd>button{font-size:14px;padding:6px 8px;white-space:nowrap}.dd .menu{top:calc(100% + 4px);right:auto;left:0;width:min(calc(100vw - 36px),360px);grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.logo small{display:none}nav.main{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;gap:0 2px}nav.main::-webkit-scrollbar{display:none}nav.main>a,nav.main .dd>button{font-size:13px;padding:5px 6px}}
/* layout */
main{padding:22px 0 50px}
.crumbs{font-size:13.5px;color:var(--mut);margin-bottom:10px}.crumbs a{color:var(--mut)}.crumbs span{margin:0 6px}
h1{font-size:clamp(26px,4vw,38px);line-height:1.2;margin:.2em 0 .3em;color:var(--ink)}
h2{font-size:24px;margin:1.6em 0 .5em}h3{font-size:18px;margin:1.2em 0 .4em}
.lead{color:var(--mut);font-size:17.5px;max-width:820px}
.grid2{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:26px;align-items:start}
@media(max-width:1020px){.grid2{grid-template-columns:minmax(0,1fr)}}.grid2>*{min-width:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:22px}
aside .card{padding:16px;margin-bottom:18px}aside h3{margin:0 0 8px;font-size:16px}
aside ul{list-style:none;padding:0;margin:0}aside li a{display:block;padding:7px 4px;border-bottom:1px solid var(--line);color:var(--ink);font-size:15px}aside li:last-child a{border:0}
/* tool */
.tool{padding:0;overflow:hidden;max-width:100%}.card{max-width:100%}.content{overflow-wrap:anywhere}
.tool-head{background:linear-gradient(120deg,var(--navy),#0e4a78);color:#fff;padding:14px 22px;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.tool-head b{font-size:17px}.tool-head .badge{font-size:12px;background:rgba(255,255,255,.14);padding:3px 10px;border-radius:99px}
.opts{display:flex;gap:10px;flex-wrap:wrap;padding:10px 22px;background:var(--soft);border-bottom:1px solid var(--line);font-size:13.5px;align-items:center}
.opts label{display:flex;align-items:center;gap:6px;color:var(--mut)}.opts select{padding:5px 8px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--ink);font-size:13.5px}
.tool-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0}
@media(max-width:760px){.tool-body{grid-template-columns:minmax(0,1fr)}}.tool-body>*{min-width:0}
.form{padding:20px 22px;display:grid;grid-template-columns:1fr 1fr;gap:14px;align-content:start}
.form .field{min-width:0}.form .wide{grid-column:1/-1}
@media(max-width:1020px) and (min-width:761px){.form{grid-template-columns:1fr}}
@media(max-width:560px){.form{grid-template-columns:minmax(0,1fr)}.opts{padding:10px 14px}.form,.resbox,.sub{padding-left:14px;padding-right:14px}.btns{padding-left:14px!important}.tool-head{padding:12px 14px}}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:4px;color:var(--ink)}
.ctl{display:flex;align-items:stretch;border:1px solid var(--line);border-radius:10px;background:var(--card);overflow:hidden}
.ctl:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,169,157,.18)}
.ctl input,.ctl select,.ctl textarea{border:0;outline:0;background:transparent;color:var(--ink);font:inherit;padding:10px 12px;width:100%;min-width:0}
.ctl select{cursor:pointer}.ctl textarea{resize:vertical}.ctl select option{background:var(--card);color:var(--ink)}
.ctl.chk{border:0;box-shadow:none!important}.ctl.chk input{width:22px;height:22px;padding:0}
.aff{display:grid;place-items:center;padding:0 11px;background:var(--soft);color:var(--mut);font-size:14px;white-space:nowrap}.aff.pre{border-right:1px solid var(--line)}.aff.suf{border-left:1px solid var(--line)}
.slider{width:100%;margin:8px 0 0;accent-color:var(--teal)}.hint{display:block;color:var(--mut);font-size:12.5px;margin-top:3px}
.btns{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap}
button.btn,a.btn{border:1px solid var(--line);background:var(--card);color:var(--ink);padding:9px 14px;border-radius:10px;cursor:pointer;font:inherit;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
button.btn:hover{border-color:var(--teal);text-decoration:none}.btn.primary{background:var(--teal);border-color:var(--teal);color:#fff;font-weight:700}.btn.primary:hover{background:#00968b}
.btn:disabled{opacity:.5;cursor:not-allowed}
.resbox{padding:20px 22px;background:var(--soft);border-left:1px solid var(--line)}
@media(max-width:760px){.resbox{border-left:0;border-top:1px solid var(--line)}}
.primary{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--teal);border-radius:12px;padding:14px 16px;margin-bottom:12px}
.primary span{display:block;color:var(--mut);font-size:14px}.primary strong{font-size:clamp(24px,4vw,34px);line-height:1.2;word-break:break-word}
.items{margin:0}.items div{display:flex;justify-content:space-between;gap:12px;padding:9px 2px;border-bottom:1px dashed var(--line)}.items dt{color:var(--mut);font-size:14.5px}.items dd{margin:0;font-weight:700;text-align:right;word-break:break-word}
.notes{margin:12px 0 0;padding-left:18px;color:var(--mut);font-size:13.5px}
.errmsg{background:#fff1f1;color:#a02323;border:1px solid #f3bcbc;border-radius:10px;padding:12px 14px}
.sub{padding:16px 22px;border-top:1px solid var(--line)}.sub h3{margin:0 0 10px;font-size:16px}
#mcs-chart{width:100%;display:block}
.tablewrap{overflow:auto;max-height:520px;border:1px solid var(--line);border-radius:10px}
table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:8px 12px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}th:first-child,td:first-child{text-align:left}th{background:var(--navy);color:#fff;position:sticky;top:0}tbody tr:nth-child(even){background:var(--soft)}
.export{background:var(--soft)}.export .row{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:10px}.export label{font-size:13.5px;color:var(--mut);display:flex;gap:5px;align-items:center}.export select{padding:5px 8px;border-radius:8px;border:1px solid var(--line);background:var(--card);color:var(--ink)}
#ex-preview{margin-top:12px;border:1px dashed var(--line);border-radius:10px;padding:8px;background:var(--card)}
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,30px);background:var(--navy);color:#fff;padding:10px 18px;border-radius:99px;opacity:0;pointer-events:none;transition:.25s;z-index:90}.toast.show{opacity:1;transform:translate(-50%,0)}
/* content */
.content p,.content li{max-width:820px}.content h2:first-child{margin-top:.3em}
.formula{background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:10px;padding:12px 16px;font-family:ui-monospace,Consolas,monospace;font-size:14.5px;overflow:auto;white-space:pre-wrap}
details.faq{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:8px 0;background:var(--card)}details.faq summary{cursor:pointer;font-weight:600}details.faq p{margin:.6em 0 0}
.disc{font-size:13.5px;color:var(--mut);background:var(--soft);border-radius:10px;padding:10px 14px;border:1px solid var(--line)}
.tags{display:flex;flex-wrap:wrap;gap:8px}.tags a{background:var(--card);border:1px solid var(--line);border-radius:99px;padding:6px 14px;color:var(--ink);font-size:14.5px}.tags a:hover{border-color:var(--teal);text-decoration:none}
/* home */
.home-page main{padding:0 0 50px}
.hero{min-height:calc(100svh - 64px);background:linear-gradient(125deg,var(--navy) 0%,#0e4a78 62%,#0e6f86 100%);color:#fff;position:relative;overflow:hidden;isolation:isolate}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,#000,transparent 88%)}
.hero:after{content:"";position:absolute;right:-7vw;bottom:-32vw;width:52vw;height:52vw;border:1px solid rgba(139,219,198,.16);border-radius:50%;z-index:-1}
.hero-inner{min-height:calc(100svh - 64px);display:grid;grid-template-columns:minmax(0,1.06fr) minmax(360px,.94fr);gap:34px;align-items:center;padding-top:48px;padding-bottom:48px}
.hero-copy{max-width:620px;position:relative;z-index:2}.hero-kicker{display:flex;align-items:center;gap:10px;color:#a6d5c9;font-size:12px;font-weight:800;letter-spacing:1.5px}.pulse-dot,.live-mark{width:8px;height:8px;border-radius:50%;background:#f4b942;box-shadow:0 0 0 5px rgba(244,185,66,.14);animation:signal-pulse 2s ease-in-out infinite}
.hero h1{color:#fff;font-size:clamp(40px,5.4vw,68px);line-height:1.04;max-width:620px;margin:20px 0 16px}.hero h1 em{color:#f4b942;font-style:normal}.hero p{color:#c2d9d8;font-size:17px;max-width:510px;line-height:1.65;margin:0}
.bigsearch{position:relative;max-width:560px;margin-top:25px;z-index:2}.bigsearch input{width:100%;padding:16px 20px 16px 52px;font-size:16px;border-radius:8px;border:1px solid rgba(255,255,255,.45);box-shadow:0 8px 24px rgba(0,0,0,.16);color:#172d34;background:#fff}.bigsearch input:focus{outline:3px solid rgba(244,185,66,.5);outline-offset:2px}.bigsearch:before{content:"\1F50D";position:absolute;left:19px;top:15px;font-size:20px}.bigsearch .results{top:60px;color:#1d2b38;background:#fff}.bigsearch .results a{color:#1d2b38}
.hero-actions{display:flex;align-items:center;gap:16px;margin-top:16px}.hero-cta{display:inline-flex;align-items:center;gap:14px;padding:11px 16px;background:#f4b942;color:#172d34;border-radius:6px;font-weight:800;transition:background .2s,transform .2s}.hero-cta span{font-size:20px;transition:transform .2s}.hero-cta:hover,.hero-cta:focus-visible{background:#ffd36f;text-decoration:none;transform:translateY(-2px)}.hero-cta:hover span,.hero-cta:focus-visible span{transform:translateX(4px)}.hero-note{color:#a6c4c3;font-size:13px}
.chips{margin-top:20px;display:flex;gap:7px;flex-wrap:wrap;position:relative;z-index:2}.chips a{background:transparent;color:#d4e6e2;border:1px solid rgba(212,230,226,.28);padding:4px 11px;border-radius:4px;font-size:13px;transition:background .18s,border-color .18s,color .18s}.chips a:hover,.chips a:focus-visible{background:#d4e6e2;color:#092e3a;border-color:#d4e6e2;text-decoration:none}
.stats{display:flex;gap:32px;margin-top:25px;flex-wrap:wrap;position:relative;z-index:2}.stats div{min-width:75px}.stats b{font-size:23px;line-height:1.1;display:block;color:#fff}.stats b span{color:#f4b942}.stats span{font-size:12px;color:#a9c6dc}
.hero-stage{min-height:470px;position:relative;display:grid;place-items:center;isolation:isolate}.stage-grid{position:absolute;width:min(100%,450px);aspect-ratio:1;border-radius:50%;border:1px solid rgba(156,210,195,.2);background:radial-gradient(circle,rgba(14,81,81,.55),rgba(9,46,58,.1) 68%,transparent 69%);z-index:-1}.stage-grid:before,.stage-grid:after{content:"";position:absolute;inset:9%;border:1px solid rgba(156,210,195,.14);border-radius:50%}.stage-grid:after{inset:20%}
.stage-caption{position:absolute;top:30px;left:50%;transform:translateX(-50%);white-space:nowrap;color:#b4d1ca;font-size:12px;letter-spacing:.3px;display:flex;align-items:center;gap:10px}.live-mark{width:7px;height:7px;background:#65d6ad;box-shadow:0 0 0 4px rgba(101,214,173,.14)}
.float-tool{position:absolute;display:flex;align-items:center;gap:13px;width:275px;padding:14px;background:#f5f7ef;color:#18343b;border:1px solid rgba(255,255,255,.7);border-radius:8px;box-shadow:0 16px 32px rgba(0,0,0,.22);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;animation:tool-drift 5s ease-in-out infinite}.float-tool:hover,.float-tool:focus-visible{transform:translateY(-7px) rotate(0deg) scale(1.025);box-shadow:0 24px 42px rgba(0,0,0,.3);border-color:#f4b942;text-decoration:none;z-index:3}.float-tool small,.float-tool b,.float-tool em{display:block}.float-tool small{font-size:9px;letter-spacing:1px;font-weight:800;color:#64807e}.float-tool b{font-size:15px;margin:2px 0}.float-tool em{font-size:11px;font-style:normal;color:#63807b}.float-tool em i{font-style:normal;color:#127b6c}.float-icon{width:43px;height:43px;flex:none;border-radius:7px;display:grid;place-items:center;font-size:23px;font-weight:700;animation:icon-bob 2.8s ease-in-out infinite}.icon-coin{background:#f8e3a8;color:#8d6412}.icon-calendar{background:#cbe9dc;color:#28735f}.icon-convert{background:#d3e5ed;color:#22627b}
.float-sip{top:106px;left:8%;transform:rotate(-4deg);animation-delay:-.8s}.float-age{top:218px;right:0;transform:rotate(3deg);animation-delay:-1.8s}.float-convert{bottom:74px;left:14%;transform:rotate(-2deg);animation-delay:-2.6s}.float-sip:hover,.float-sip:focus-visible{transform:translateY(-7px) rotate(0) scale(1.025)}.float-age:hover,.float-age:focus-visible{transform:translateY(-7px) rotate(0) scale(1.025)}.float-convert:hover,.float-convert:focus-visible{transform:translateY(-7px) rotate(0) scale(1.025)}
.stage-orbit{position:absolute;width:38px;height:38px;display:grid;place-items:center;border-radius:50%;font-size:18px;font-weight:700;color:#092e3a;box-shadow:0 8px 18px rgba(0,0,0,.2);animation:icon-bob 3s ease-in-out infinite}.orbit-one{top:92px;right:13%;background:#f4b942}.orbit-two{bottom:118px;right:12%;background:#9bd9c5;animation-delay:-1s}.orbit-three{bottom:55px;left:3%;background:#d8e5ed;animation-delay:-2s}
@keyframes signal-pulse{50%{box-shadow:0 0 0 9px rgba(244,185,66,0)}}@keyframes icon-bob{50%{translate:0 -5px}}@keyframes tool-drift{0%,100%{translate:0 0}50%{translate:0 -5px}}
@media(max-width:900px){.hero-inner{grid-template-columns:minmax(0,1fr) minmax(300px,.85fr);gap:12px}.hero-stage{min-height:410px}.float-tool{width:250px}.float-sip{left:0}.float-convert{left:4%}.float-age{right:-4%}}
@media(max-width:680px){.hero{min-height:calc(100svh - 94px)}.hero-inner{min-height:calc(100svh - 94px);grid-template-columns:1fr;gap:0;padding-top:28px;padding-bottom:20px}.hero-copy{max-width:none}.hero h1{font-size:42px;margin:14px 0 10px}.hero p{font-size:15px;line-height:1.5}.bigsearch{margin-top:17px}.bigsearch input{padding:14px 14px 14px 44px;font-size:15px}.bigsearch:before{left:15px;top:13px}.hero-actions{margin-top:12px}.chips{margin-top:15px;gap:6px}.chips a{padding:4px 9px;font-size:12px}.stats{gap:23px;margin-top:17px}.stats b{font-size:20px}.stats span{font-size:11px}.hero-stage{min-height:230px;margin-top:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:7px;padding:30px 0 4px}.stage-grid{width:225px}.stage-caption{top:5px;font-size:10px}.float-tool,.float-sip,.float-age,.float-convert{position:relative;inset:auto;width:min(100%,300px);padding:8px 10px;gap:9px;transform:none}.float-tool:hover,.float-tool:focus-visible,.float-sip:hover,.float-sip:focus-visible,.float-age:hover,.float-age:focus-visible,.float-convert:hover,.float-convert:focus-visible{transform:translateY(-3px) scale(1.015)}.float-icon{width:34px;height:34px;font-size:19px}.float-tool small{font-size:8px}.float-tool b{font-size:13px}.float-tool em{font-size:10px}.stage-orbit{display:none}}
@media(max-width:380px){.hero-inner{padding-top:22px;padding-bottom:14px}.hero h1{font-size:37px}.hero p{font-size:14px}.hero-stage{min-height:214px}.float-tool{width:194px}.float-sip{left:calc(50% - 107px)}.float-age{right:calc(50% - 121px)}.float-convert{left:calc(50% - 107px)}}
.hero-cta{white-space:nowrap;flex:none}.float-tool{animation:none}
@media(prefers-reduced-motion:reduce){.pulse-dot,.live-mark,.float-icon,.stage-orbit{animation:none}.hero-cta,.hero-cta span,.chips a,.float-tool{transition:none}}
.sec{margin:38px 0 0}.sec>h2{margin:0 0 6px}.sec>p{color:var(--mut);margin:0 0 16px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.tcard{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;color:var(--ink);transition:.18s;position:relative}
.tcard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--teal);text-decoration:none}
.tcard b{display:block;font-size:16px;margin-bottom:3px}.tcard small{color:var(--mut);display:block;line-height:1.4}
.ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:21px;margin-bottom:10px;background:var(--soft)}
.catcard .meta{margin-top:8px;font-size:12.5px;color:var(--acc-ink);font-weight:700}
.soon{opacity:.75;border-style:dashed}.soon:hover{transform:none;box-shadow:none;border-color:var(--line)}.pill{position:absolute;right:12px;top:12px;font-size:11px;background:var(--amber);color:#3a2600;padding:2px 9px;border-radius:99px;font-weight:700}
.strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}.strip div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}.strip b{display:block;margin-bottom:4px}
/* footer */
.site-footer{background:var(--navy);color:#bcd1e3;padding:40px 0 20px;margin-top:30px}
.fgrid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:26px}@media(max-width:860px){.fgrid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.fgrid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;margin:0 0 10px;font-size:15px}.site-footer a{color:#bcd1e3;display:block;padding:3px 0;font-size:14.5px}.site-footer a:hover{color:#fff}
.fbot{border-top:1px solid rgba(188,209,227,.2);margin-top:26px;padding-top:16px;font-size:12.5px;display:flex;align-items:center;justify-content:space-between;gap:10px 22px;flex-wrap:wrap;color:#a9c2d4}.fbot .copyright{color:#e3edf4;font-weight:600}.fbot .copyright-detail{font-weight:400;color:#a9c2d4}.fbot .made-in-india{display:inline-flex;align-items:center;gap:6px;color:#d3e3eb;white-space:nowrap}.fbot .made-in-india span{color:#f4b942;font-size:14px}.fbot .footer-note{color:#91adc2}
@media(max-width:640px){.fbot{justify-content:flex-start;gap:8px 16px}.fbot .copyright{flex-basis:100%}.fbot .copyright-detail{display:block}}
/* ads (hidden until enabled in ads.js) */
.ad-slot{display:none;margin:22px auto;text-align:center;overflow:hidden}.ads-on .ad-slot{display:block;min-height:100px;background:transparent}
.ads-on .ad-slot:before{content:"Advertisement";display:block;font-size:11px;color:var(--mut);letter-spacing:.5px;text-transform:uppercase;margin-bottom:4px}
.ad-side{min-height:250px}
/* consent */
.consent{position:fixed;left:14px;right:14px;bottom:14px;max-width:760px;margin:0 auto;background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 40px rgba(0,0,0,.25);padding:14px 16px;z-index:80;display:none;gap:12px;align-items:center;flex-wrap:wrap}.consent.show{display:flex}.consent p{margin:0;flex:1 1 320px;font-size:14px}
/* keypad */
.kp{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:0}@media(max-width:820px){.kp{grid-template-columns:1fr}}
.kp-main{padding:18px 20px}.kp-screen{background:#0b1a28;color:#fff;border-radius:14px;padding:14px 18px;text-align:right;min-height:112px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}
#kp-expr{color:#8fb0cc;font-size:18px;min-height:26px;word-break:break-all}#kp-res{font-size:clamp(30px,6vw,44px);font-weight:700;word-break:break-all}#kp-res.bad{font-size:16px;color:#ffb3b3}
.kp-pad{display:grid;gap:8px;margin-top:14px}.kp-pad.basic{grid-template-columns:repeat(4,1fr)}.kp-pad.sci{grid-template-columns:repeat(5,1fr)}
.kp-pad button{padding:15px 4px;font-size:18px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;font-family:inherit}.kp-pad.sci button{padding:12px 2px;font-size:15px}
.kp-pad button:hover{border-color:var(--teal)}.kp-pad .op{background:var(--soft);color:var(--acc-ink);font-weight:700}.kp-pad .eq{background:var(--teal);color:#fff;border-color:var(--teal);font-weight:800}.kp-pad .clr{background:#fdeceb;color:#c0392b}
.kp-hist{border-left:1px solid var(--line);padding:16px;background:var(--soft)}@media(max-width:820px){.kp-hist{border-left:0;border-top:1px solid var(--line)}}
#kp-hist{list-style:none;padding:0;margin:8px 0;max-height:430px;overflow:auto}#kp-hist li{padding:8px 4px;border-bottom:1px dashed var(--line);cursor:pointer;display:flex;flex-direction:column;font-size:14px}#kp-hist li span{color:var(--mut);word-break:break-all}#kp-hist li.empty{color:var(--mut);cursor:default}
@media print{.site-header,.site-footer,aside,.opts,.btns,.export,.ad-slot,.consent,.crumbs,.content,.hsearch,#btn-calc{display:none!important}body{background:#fff}.tool{box-shadow:none}}