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--orange:#e46a12; --orange-ink:#a94a05; --orange-tint:#fff3e9; --orange-line:#f5caa6;
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--rose:#dc3d68;   --rose-ink:#b02550;   --rose-tint:#fdeef2;   --rose-line:#f3bfcd;
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border-radius:6px;
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background-size:5mm 5mm;
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}
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}
.card + .card{margin-top:12px}
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background-color:#fcfdff;
background-image:
linear-gradient(color-mix(in srgb,var(--a) 10%,transparent) 1px,transparent 1px),
linear-gradient(90deg,color-mix(in srgb,var(--a) 10%,transparent) 1px,transparent 1px);
background-size:4mm 4mm;
text-align:center;overflow-x:auto;
break-inside:avoid;
}
.formula > .f-tab{
position:relative;display:block;width:fit-content;margin:-31.6px auto 10.6px;box-sizing:border-box;height:21px;
font:600 10px/1 var(--f-mono);letter-spacing:.13em;text-transform:uppercase;white-space:nowrap;
color:#fff;background:var(--a);border-radius:0 0 8px 8px;padding:6px 13px 5px;
}
.formula .katex-display{margin:.35em 0 .3em}
.formula .katex-display > .katex{font-size:1.45em}
.f-where{margin:4px 0 0;font-size:12.4px;line-height:1.5;color:var(--muted)}
.ticks{list-style:none;margin:6px 0;padding:0}
.ticks li{position:relative;padding:3px 0 3px 21px}
.ticks li::before{
content:"";position:absolute;left:4px;top:.78em;width:7px;height:7px;border-radius:1.5px;
background:var(--a);transform:rotate(45deg);
}
.steps{list-style:none;margin:12px 0 2px;padding:0;counter-reset:st}
.steps > li{counter-increment:st;position:relative;padding:3px 0 12px 38px;break-inside:avoid}
.steps > li::before{
content:counter(st);position:absolute;left:0;top:0;
width:26px;height:26px;border-radius:50%;
background:var(--a);color:#fff;font:600 12px/26px var(--f-mono);text-align:center;
box-shadow:0 0 0 3px var(--a-tint);
}
.steps > li::after{content:"";position:absolute;left:12.3px;top:31px;bottom:3px;width:1.5px;background:var(--line-2)}
.steps > li:last-child{padding-bottom:2px}
.steps > li:last-child::after{display:none}
.steps > li p{margin:0 0 4px}
.steps > li .eq{margin:4px 0}
.steps > li:nth-child(6n+1){--a:var(--blue);  --a-ink:var(--blue-ink);  --a-tint:var(--blue-tint);  --a-line:var(--blue-line)}
.steps > li:nth-child(6n+2){--a:var(--teal);  --a-ink:var(--teal-ink);  --a-tint:var(--teal-tint);  --a-line:var(--teal-line)}
.steps > li:nth-child(6n+3){--a:var(--violet);--a-ink:var(--violet-ink);--a-tint:var(--violet-tint);--a-line:var(--violet-line)}
.steps > li:nth-child(6n+4){--a:var(--orange);--a-ink:var(--orange-ink);--a-tint:var(--orange-tint);--a-line:var(--orange-line)}
.steps > li:nth-child(6n+5){--a:var(--green); --a-ink:var(--green-ink); --a-tint:var(--green-tint); --a-line:var(--green-line)}
.steps > li:nth-child(6n+6){--a:var(--rose);  --a-ink:var(--rose-ink);  --a-tint:var(--rose-tint);  --a-line:var(--rose-line)}
.setup{
position:relative;margin:4px 0 14px;padding:24px 12px 8px;
background:var(--paper);border:1.5px dashed var(--blue-line);border-radius:9px;
}
.setup > .s-tab{
position:absolute;top:-1.5px;left:10px;
font:600 9px/1 var(--f-mono);letter-spacing:.13em;text-transform:uppercase;
color:#fff;background:var(--blue);border-radius:0 0 6px 6px;padding:5px 9px 4px;
}
.setup p{margin:0}
.tbl-wrap{position:relative;margin:12px 0;overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;background:var(--paper);font-size:12.6px;line-height:1.45}
.tbl th{
text-align:left;vertical-align:bottom;padding:7px 9px 6px;
background:var(--a-tint);color:var(--a-ink);
font-size:11px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;
border-top:1px solid var(--a-line);border-bottom:2px solid var(--a);
}
.tbl td{padding:6px 9px;vertical-align:top;border-bottom:1px solid var(--line)}
.tbl tbody tr:nth-child(even) td{background:#f9fafd}
.tbl td:first-child{font-weight:800}
.tbl .sym{font-family:var(--f-mono);font-weight:600;color:var(--a);white-space:nowrap}
.tbl th .katex{text-transform:none;letter-spacing:0;font-weight:400}
.tbl.c1 td:first-child{color:var(--a-ink)}
.tbl tr{break-inside:avoid}
.tbl.rot tbody tr:nth-child(5n+1){--a:var(--blue);  --a-ink:var(--blue-ink)}
.tbl.rot tbody tr:nth-child(5n+2){--a:var(--teal);  --a-ink:var(--teal-ink)}
.tbl.rot tbody tr:nth-child(5n+3){--a:var(--violet);--a-ink:var(--violet-ink)}
.tbl.rot tbody tr:nth-child(5n+4){--a:var(--orange);--a-ink:var(--orange-ink)}
.tbl.rot tbody tr:nth-child(5n+5){--a:var(--green); --a-ink:var(--green-ink)}
.tbl.prefix td:nth-child(-n+3){--a:var(--blue);--a-ink:var(--blue-ink);color:var(--a-ink)}
.tbl.prefix td:nth-child(n+4){--a:var(--violet);--a-ink:var(--violet-ink);color:var(--a-ink)}
.tbl.prefix td:nth-child(4),.tbl.prefix th:nth-child(4){border-left:2px solid var(--line-2)}
.tbl.dims td:nth-child(3){white-space:nowrap}
.tbl .was{display:block;margin-top:4px;font-size:11.4px;line-height:1.4;font-weight:600;color:var(--muted)}
.yr{
display:inline-block;margin-left:4px;padding:3px 6px 2px;vertical-align:1px;white-space:nowrap;
font:600 9.5px/1 var(--f-mono);color:var(--muted);
background:#f1f3f8;border:1px solid var(--line);border-radius:999px;
}
.eg{
display:inline-block;margin-right:5px;padding:3px 7px 2px;vertical-align:1px;
font:600 9.5px/1 var(--f-mono);letter-spacing:.06em;
color:var(--orange-ink);background:var(--orange-tint);border:1px solid var(--orange-line);border-radius:999px;
}
.label-pill{
display:inline-flex;align-items:center;gap:7px;margin:14px 0 8px;padding:6px 12px 5px;
font:600 10.5px/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--a-ink);
background:var(--paper);border:1.4px solid var(--a-line);border-radius:999px;
break-after:avoid;
}
.label-pill + *{break-before:avoid}
.label-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--a)}
.keyline{
display:flex;align-items:center;gap:9px;margin:10px 0 4px;padding:7px 11px;
background:var(--paper);border:1.3px dashed var(--a-line);border-radius:9px;
font-size:13px;font-weight:800;color:var(--a-ink);
break-inside:avoid;
}
.keyline .kb{
flex:0 0 auto;padding:4px 8px 3px;border-radius:999px;
font:600 9.5px/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:#fff;background:var(--a);
}
.legend{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 8px;font-size:12.3px;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.base-units{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:7px;margin:6px 0 16px;break-inside:avoid}
.bu{
display:flex;flex-direction:column;align-items:center;text-align:center;padding:8px 4px 9px;
border:1.3px solid var(--a-line);border-radius:10px;background:linear-gradient(180deg,var(--a-tint),var(--paper));
}
.bu .q{display:flex;align-items:center;min-height:24px;font-size:8.9px;font-weight:800;line-height:1.2;letter-spacing:.02em;text-transform:uppercase;color:var(--a-ink)}
.bu .s{margin:3px 0 0;font-family:var(--f-head);font-weight:800;font-size:25px;line-height:1.15;color:var(--a)}
.bu .n{font-size:11.4px;font-weight:700;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0 2px}
.chip{display:inline-flex;align-items:baseline;gap:6px;padding:4px 10px;background:var(--paper);border:1.2px solid var(--a-line);border-radius:8px}
.chip b{font-family:var(--f-mono);font-weight:600;font-size:13px;color:var(--a)}
.chip span{font-size:12px;font-weight:700;color:var(--ink-2)}
.digits{display:inline-flex;align-items:flex-end;gap:3px}
.dg{
display:inline-grid;place-items:center;width:21px;height:27px;border-radius:5px;
font:600 14px/1 var(--f-mono);border:1.4px solid;
}
.dg.g{background:var(--green-tint);border-color:var(--green-line);color:var(--green-ink)}
.dg.x{background:#f1f3f7;border-color:#d7dce7;color:#9aa3b8}
.dg.u{background:var(--orange-tint);border-color:var(--orange-line);color:var(--orange-ink)}
.dg.e{background:var(--blue-tint);border-color:var(--blue-line);color:var(--blue-ink)}
.dg.key{width:13px;height:13px;border-radius:3px}
.dp{align-self:flex-end;padding:0 1px 3px;font:700 17px/1 var(--f-mono);color:var(--ink-2)}
.dg.lg{width:36px;height:46px;border-radius:8px;font-size:25px}
.dp.lg{font-size:30px;padding-bottom:4px}
.reading{display:flex;align-items:flex-start;justify-content:center;gap:12px;flex-wrap:wrap;margin:14px 0 4px}
.reading .rg{text-align:center}
.reading .dl{margin-top:7px;font-size:10px;font-weight:800;line-height:1.25;letter-spacing:.04em;text-transform:uppercase}
.reading .dl.g{color:var(--green-ink)}
.reading .dl.u{color:var(--orange-ink)}
.reading .du{height:46px;display:flex;align-items:center;font:600 22px/1 var(--f-mono);color:var(--muted)}
.sf-total{
display:inline-block;margin-top:10px;padding:5px 16px;border-radius:999px;
font-size:13px;font-weight:800;color:var(--green-ink);background:var(--green-tint);border:1.5px solid var(--green-line);
}
.sf{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0 0}
.sf .arr,.arr{color:var(--faint);font-weight:800}
.sf .unit-s{font-size:11.5px;font-weight:800;color:var(--muted)}
.sf .note-s{font-size:11px;font-weight:700;color:var(--muted)}
.sf .lhs{min-width:72px;font-weight:800;color:var(--a-ink)}
.sfc{
display:inline-flex;align-items:center;white-space:nowrap;padding:5px 8px 4px;border-radius:999px;
font:600 10.5px/1 var(--f-mono);color:var(--green-ink);background:var(--green-tint);border:1px solid var(--green-line);
}
.sfc.e{color:var(--blue-ink);background:var(--blue-tint);border-color:var(--blue-line)}
.sfc.bad{color:var(--rose-ink);background:var(--rose-tint);border-color:var(--rose-line)}
.sf-rows{display:grid;gap:7px;margin-top:10px}
.sf-rows .sf{margin:0}
.sf-inline{display:flex;gap:20px;flex-wrap:wrap;margin-top:9px}
.sf-inline .sf{margin:0}
.rp,.rr{display:inline-flex;align-items:center;padding:5px 10px;border-radius:7px;font:600 14px/1 var(--f-mono);letter-spacing:.03em}
.rp{color:var(--ink-2);background:#f3f5f9;border:1px solid var(--line-2)}
.rp s{color:var(--rose);text-decoration-thickness:2px}
.rp .even{color:var(--green-ink)}
.rp .odd{color:var(--orange-ink)}
.rr{color:var(--green-ink);background:var(--green-tint);border:1px solid var(--green-line)}
.rr.o{color:var(--orange-ink);background:var(--orange-tint);border-color:var(--orange-line)}
.ladder{display:grid;gap:6px;margin:6px 0 4px}
.rung{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rung .rl{min-width:150px;font-weight:800;color:var(--a-ink)}
.rung .rv{padding:5px 10px;border-radius:7px;font:600 13px/1 var(--f-mono);color:var(--a-ink);background:var(--a-tint);border:1px solid var(--a-line)}
.rung .rn{font-size:11px;font-weight:700;color:var(--muted)}
.spec{
display:flex;justify-content:space-between;align-items:center;gap:12px;
padding:6px 0;border-bottom:1px dashed var(--line-2);
break-inside:avoid;
}
.spec:last-child{border-bottom:0}
.spec .sn{flex:1;min-width:0;font-size:13.2px;line-height:1.4}
.spec .sd{display:block;margin-top:1px;font-size:11.8px;font-weight:600;color:var(--muted)}
.spec .sv{
flex:0 0 auto;max-width:52%;padding:4px 11px;border-radius:999px;text-align:right;
font-size:12.6px;font-weight:700;color:var(--a-ink);background:var(--a-tint);border:1px solid var(--a-line);
}
.grid2 .spec{border:1px solid var(--line);border-radius:8px;padding:6px 10px;background:var(--paper)}
.grp{
display:flex;align-items:center;gap:8px;margin:12px 0 2px;
font:600 10px/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--a-ink);
break-after:avoid;
}
.grp::after{content:"";flex:1;height:1px;background:var(--a-line)}
.mini{padding:9px 11px;border:1.3px solid var(--a-line);border-radius:9px;background:var(--a-tint)}
.mini-t{margin-bottom:6px;font:600 10px/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--a-ink)}
.mini .eq{margin:5px 0}
.mini p{margin:5px 0 0;font-size:11.8px;font-weight:800;color:var(--a-ink)}
.chk{display:flex;align-items:center;gap:10px;padding:5px 0;border-bottom:1px dashed var(--line-2)}
.chk .lhs{min-width:84px;font-weight:800;color:var(--a-ink)}
.chk .ok{margin-left:auto;font-size:15px;font-weight:900;color:var(--green)}
.fig{margin:10px 0 0;padding:8px;text-align:center;background:var(--paper);border:1.3px dashed var(--a-line);border-radius:9px;break-inside:avoid}
.fig svg{display:block;width:100%;max-width:290px;height:auto;margin:0 auto}
.fig figcaption{margin-top:4px;font-size:11.4px;font-weight:700;color:var(--muted)}
.intro{margin:2px 0 6px;padding:12px 16px;border-left:4px solid var(--a);border-radius:0 10px 10px 0;background:linear-gradient(90deg,var(--a-tint),rgba(255,255,255,0));font-size:14.8px;line-height:1.7}
.split{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:16px;align-items:center;margin:12px 0;break-inside:avoid}
.split.wide{grid-template-columns:minmax(0,1fr) 310px}
.split.narrow{grid-template-columns:minmax(0,1fr) 190px}
.split > .fig,.split > .formula,.split > .setup,.split > .card{margin:0}
.split > div > p:first-child{margin-top:0}
.split > div > :last-child{margin-bottom:0}
.sheet p:has(+ .grid2),.sheet p:has(+ .grid3),.sheet p:has(+ .tbl-wrap),.sheet p:has(+ .eq),.sheet p:has(+ .formula){break-after:avoid}
.fig img{display:block;width:100%;max-width:300px;height:auto;margin:0 auto;border-radius:6px}
.fig.wide svg{max-width:520px}
.card .fig{margin-top:10px;border-style:solid;border-color:var(--line)}
.card .fig svg{max-width:240px}
.card > .split:first-child{margin-top:4px}
.ribbon{margin:12px 0;padding:11px 16px;border-radius:10px;background:var(--navy);color:#fff;text-align:center;font-family:var(--f-head);font-weight:700;font-size:16px;letter-spacing:.01em;break-inside:avoid}
.ribbon i{font-style:normal;color:var(--ruler);padding:0 7px}
.steps.roman > li::before{content:counter(st,upper-roman);font-size:10.5px}
.steps.titled > li > b:first-child{display:block;margin-bottom:1px}
.end{
display:flex;align-items:center;gap:12px;margin-top:36px;
font:600 10.5px/1 var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--faint);
}
.end::before,.end::after{content:"";flex:1;height:1px;background:var(--line)}
.vl-measure .grid2.stack,.vl-measure .grid3.stack{grid-template-columns:1fr}
@page{
size:A4;
margin:12mm 13mm 15mm;
@bottom-left{
content:"notesshala.in";
font-family:"Nunito",sans-serif;font-size:8pt;font-weight:700;color:#8b93aa;
vertical-align:top;padding-top:4.5mm;
}
@bottom-right{
content:counter(page) " / " counter(pages);
font-family:"IBM Plex Mono",monospace;font-size:8pt;font-weight:600;color:#8b93aa;
vertical-align:top;padding-top:4.5mm;
}
}
@page :first{
@bottom-left{content:none}
@bottom-right{content:none}
}
@media print{
html,body{background:#fff}
.sheet{width:auto;max-width:none;margin:0;padding:0;border-radius:0;box-shadow:none}
.cover{display:flex;flex-direction:column;min-height:268mm;margin:0;break-after:page}
.toc{flex:1}
.keyrow{margin-top:auto}
.part:first-of-type{margin-top:0}
.tbl-wrap,.eq,.formula{overflow:visible}
.formula{clip-path:inset(0 round 12px)}
.grid2.stack,.grid3.stack{grid-template-columns:1fr}
.grid2.stack > .card + .card,.grid3.stack > .card + .card{margin-top:0}
.tall{break-inside:auto;box-decoration-break:clone;-webkit-box-decoration-break:clone}
p,li{orphans:3;widows:3}
.sheet p,.sheet li{break-inside:avoid}
.topic{margin-top:24px}
.box{margin:13px 0 10px}
.formula{margin:13px 0 11px}
.label-pill{margin-top:10px;margin-bottom:6px}
.split.narrow .fig svg{max-height:180px}
a{text-decoration:none}
}
@media screen and (max-width:840px){
body.notes-page{background:var(--paper)}
.sheet{width:auto;margin:0;padding:20px 16px 44px;border-radius:0;box-shadow:none}
}
@media screen and (max-width:640px){
.sheet{font-size:15px}
.grid2,.grid3,.toc-cols{grid-template-columns:1fr}
.base-units{grid-template-columns:repeat(4,minmax(0,1fr))}
.cover-panel{--cp:16px;padding:22px var(--cp) 0}
.cover-main{flex-direction:column;align-items:flex-start;gap:14px;padding-bottom:22px}
.ch-badge{width:76px;height:76px}
.ch-badge strong{font-size:36px}
.cover h1{font-size:34px}
.part-head{gap:10px;padding:10px 12px 10px 10px}
.part-no{min-width:46px;font-size:36px}
.part h2{font-size:22px}
.topic > h3{font-size:20px}
.tbl{min-width:560px}
.tbl.dims{min-width:620px}
.spec{flex-direction:column;align-items:flex-start;gap:5px}
.spec .sv{max-width:100%;text-align:left}
.rung .rl{min-width:0}
.card-s{display:none}
.split,.split.wide,.split.narrow{grid-template-columns:1fr}
}