@page {
  size: A4 portrait;
  margin: 0;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: #d9dde3;
  color: #000;
  font-family: Arial, "Noto Sans Hebrew", sans-serif;
  font-size: 8.35pt;
  line-height: 1.22;
  print-color-adjust: exact;
  -webkit-print-color-adjust: exact;
}

body {
  direction: rtl;
}

.screen-nav {
  width: 210mm;
  margin: 8mm auto 3mm;
  font-size: 10pt;
  text-align: center;
}

.screen-nav a {
  color: #0f6670;
}

.sheet {
  width: 210mm;
  height: 297mm;
  margin: 0 auto 8mm;
  padding: 4.8mm 6mm 4mm;
  overflow: hidden;
  background: #fff;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  page-break-after: always;
  break-after: page;
}

.sheet:last-of-type {
  page-break-after: auto;
  break-after: auto;
}

.page-header {
  min-height: 11.8mm;
  margin-bottom: 2.1mm;
  padding-bottom: 1.5mm;
  border-bottom: 1.5pt solid #000;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 5mm;
}

.page-header h1,
.page-header .page-title {
  margin: 0;
  color: #000;
  font-size: 17pt;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
}

.page-header p {
  margin: 0;
  color: #111;
  font-size: 8.1pt;
  text-align: left;
}

.columns {
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3.8mm;
}

.column {
  min-width: 0;
  padding-inline-start: 3.5mm;
  border-inline-start: 0.75pt solid #777;
}

.column:first-child {
  padding-inline-start: 0;
  border-inline-start: 0;
}

.block {
  margin: 0 0 1.9mm;
  break-inside: avoid;
}

h2 {
  margin: 0 0 0.75mm;
  padding: 1mm 1.35mm 0.8mm;
  border-right: 2.6pt solid #000;
  background: #e8e8e8;
  color: #000;
  font-size: 10.2pt;
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 1.3mm 0 0.55mm;
  color: #000;
  font-size: 8.45pt;
  line-height: 1.1;
  letter-spacing: 0;
}

p {
  margin: 0 0 0.55mm;
}

ul,
ol {
  margin: 0.4mm 0 0.65mm;
  padding-inline-start: 4.1mm;
}

li {
  margin: 0 0 0.45mm;
}

li::marker {
  color: #000;
  font-size: 1.18em;
  font-weight: 700;
}

strong {
  color: #000;
}

.eq,
.math {
  direction: ltr;
  unicode-bidi: isolate;
  font-family: "Times New Roman", "Noto Serif", serif;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-kerning: none;
  letter-spacing: 0;
  word-spacing: 0.08em;
}

.eq {
  margin: 0.8mm 0;
  padding: 0.95mm 1.15mm;
  border: 1pt solid #000;
  background: #fff;
  color: #000;
  font-size: 9.15pt;
  line-height: 1.38;
  text-align: left;
  white-space: normal;
  word-spacing: 0.12em;
}

.eq > span {
  display: block;
  margin: 0.55mm 0;
}

.eq > span + span {
  margin-top: 0.95mm;
}

.eq .formula-label {
  direction: rtl;
  unicode-bidi: isolate;
  margin: 0.35mm 0 0.15mm;
  color: #000;
  font-family: Arial, "Noto Sans Hebrew", sans-serif;
  font-size: 8.35pt;
  font-weight: 700;
  text-align: right;
  word-spacing: 0.03em;
}

.formula-pair {
  direction: rtl;
  margin: 0.54mm 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  align-items: baseline;
  gap: 1.6mm;
}

.formula-pair > .formula-label {
  margin: 0;
}

.formula-expression {
  direction: ltr;
  unicode-bidi: isolate;
  white-space: nowrap;
  text-align: left;
  word-spacing: 0.12em;
}

.prime-mark {
  display: inline-block;
  font-weight: 700;
  line-height: 1;
}

.prime-mark + .prime-mark {
  margin-left: 0.16em;
  margin-right: 0.06em;
}

.eq sub,
.eq sup,
.math sub,
.math sup {
  position: static;
  font-size: 0.82em;
  font-weight: 700;
  line-height: 1;
  margin-inline: 0.1em 0.09em;
  word-spacing: 0.08em;
}

.eq sub,
.math sub {
  vertical-align: -0.3em;
}

.eq sup,
.math sup {
  vertical-align: 0.58em;
}

.indexed-term {
  display: inline-block;
  margin-inline: 0.08em 0.18em;
}

.frac {
  display: inline-grid;
  grid-template-rows: auto auto;
  align-items: center;
  justify-items: stretch;
  vertical-align: middle;
  margin-inline: 0.18em;
  text-align: center;
  line-height: 1.05;
}

.frac-num {
  padding: 0 0.22em 0.12em;
  border-bottom: 1pt solid currentcolor;
}

.frac-den {
  padding: 0.12em 0.22em 0;
}

.frac .frac {
  font-size: 0.9em;
}

.frac sub,
.frac sup {
  position: static;
  line-height: 1;
}

.frac sub {
  vertical-align: sub;
}

.frac sup {
  vertical-align: super;
}

.frac-den sup {
  position: relative;
  top: 0.18em;
}

.sum {
  display: inline-grid;
  grid-template-areas:
    "upper"
    "symbol"
    "lower";
  grid-template-rows: 0.68em 1em 0.68em;
  align-items: center;
  justify-items: center;
  min-width: 1.9em;
  margin-inline: 0.28em;
  vertical-align: middle;
  line-height: 1;
}

.sum-upper,
.sum-lower {
  font-size: 0.68em;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.sum-upper {
  grid-area: upper;
  align-self: end;
}

.sum-symbol {
  grid-area: symbol;
  font-size: 1.55em;
  line-height: 0.72;
}

.sum-lower {
  grid-area: lower;
  align-self: start;
}

.sum + .frac {
  margin-inline-start: 0.32em;
}

.matrix-line {
  margin: 0.78mm 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1.2mm;
}

.matrix-grid {
  position: relative;
  padding: 0.45mm 1.2mm;
  border-right: 1.2pt solid currentcolor;
  border-left: 1.2pt solid currentcolor;
  display: grid;
  grid-template-columns: repeat(2, max-content);
  gap: 0.75mm 3mm;
  text-align: center;
}

.matrix-grid.one-column {
  grid-template-columns: max-content;
}

.matrix {
  font-size: 7.55pt;
  white-space: nowrap;
}

.steps {
  counter-reset: compact-step;
  list-style: none;
  padding: 0;
}

.steps li {
  counter-increment: compact-step;
  position: relative;
  padding-right: 4.9mm;
}

.steps li::before {
  content: counter(compact-step);
  position: absolute;
  right: 0;
  top: 0.05mm;
  width: 4mm;
  height: 4mm;
  border-radius: 50%;
  border: 0.75pt solid #000;
  background: #fff;
  color: #000;
  font-weight: 700;
  line-height: 3.75mm;
  text-align: center;
}

table {
  width: 100%;
  margin: 0.6mm 0 1mm;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 7.5pt;
  line-height: 1.15;
}

th,
td {
  padding: 0.65mm 0.8mm;
  border: 0.7pt solid #555;
  vertical-align: top;
}

th {
  background: #e4e4e4;
  color: #000;
  font-weight: 700;
}

td.math {
  font-size: 8.1pt;
  line-height: 1.25;
}

tr:nth-child(even) td {
  background: #f3f3f3;
}

.mini-table th:first-child,
.mini-table td:first-child {
  width: 38%;
}

.cue {
  margin: 0.85mm 0;
  padding: 0.9mm 1.05mm;
  border: 0.8pt solid #555;
  border-right: 2pt solid #000;
  background: #f2f2f2;
}

.check {
  margin-top: 0.95mm;
  padding: 0.95mm 1.05mm;
  border: 0.8pt solid #555;
  border-right: 2pt solid #000;
  background: #f2f2f2;
}

.muted {
  color: #222;
}

.tight li {
  margin-bottom: 0.3mm;
}

.page-footer {
  min-height: 4mm;
  margin-top: 1.7mm;
  padding-top: 1mm;
  border-top: 0.8pt solid #555;
  display: flex;
  justify-content: space-between;
  color: #111;
  font-size: 7.3pt;
}

.page-number {
  white-space: nowrap;
}

@media print {
  html,
  body {
    background: #fff;
  }

  .screen-nav {
    display: none;
  }

  .sheet {
    margin: 0;
  }
}

@media screen {
  .sheet {
    box-shadow: 0 3mm 9mm rgb(31 41 55 / 18%);
  }
}