/* =====================================================================
   מתמטיקה בדידה · course site
   Sibling of the BI site: same ink/paper, fonts, 45° slash and cut corners.
   Own identity: vermilion accent + a discrete dot lattice (instead of teal).
   ===================================================================== */

:root {
  --ink: #0A1033;
  --paper: #F2EEE4;
  --verm: #FF8A4C;          /* signature accent (decor, dark-mode text) */
  --verm-d: #B23C0A;        /* accent for text on paper (AA) */

  --ease: cubic-bezier(.2, .8, .2, 1);
  --cut: 14px;
  --hh: 64px;

  --f-display: 'Secular One', 'Heebo', system-ui, sans-serif;
  --f-body: 'Heebo', system-ui, sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, Consolas, monospace;

  /* light (default) */
  --bg: #F2EEE4;
  --bg-2: #E9E3D5;
  --surface: #FBF9F4;
  --surface-2: #EFEADF;
  --line: rgba(10, 16, 51, .14);
  --text: #0A1033;
  --text-2: #2A2F55;
  --meta: #565A7E;
  --accent: #B23C0A;
  --accent-deco: #E8662A;
  --accent-ink: #FBF9F4;
  --accent-soft: rgba(232, 102, 42, .12);
  --ok: #0B6E4F;
  --ok-soft: rgba(11, 110, 79, .1);
  --bad: #A61B3A;
  --dot: rgba(10, 16, 51, .16);
  --header-bg: rgba(242, 238, 228, .94);
  --focus: #B23C0A;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0A1033;
    --bg-2: #06142A;
    --surface: #0F1842;
    --surface-2: #142052;
    --line: rgba(143, 155, 208, .2);
    --text: #F2EEE4;
    --text-2: #C9CCE0;
    --meta: #9AA5D6;
    --accent: #FF8A4C;
    --accent-deco: #FF8A4C;
    --accent-ink: #0A1033;
    --accent-soft: rgba(255, 138, 76, .13);
    --ok: #4FD1A1;
    --ok-soft: rgba(79, 209, 161, .12);
    --bad: #FF7A8F;
    --dot: rgba(143, 155, 208, .2);
    --header-bg: rgba(10, 16, 51, .94);
    --focus: #FF8A4C;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0A1033;
  --bg-2: #06142A;
  --surface: #0F1842;
  --surface-2: #142052;
  --line: rgba(143, 155, 208, .2);
  --text: #F2EEE4;
  --text-2: #C9CCE0;
  --meta: #9AA5D6;
  --accent: #FF8A4C;
  --accent-deco: #FF8A4C;
  --accent-ink: #0A1033;
  --accent-soft: rgba(255, 138, 76, .13);
  --ok: #4FD1A1;
  --ok-soft: rgba(79, 209, 161, .12);
  --bad: #FF7A8F;
  --dot: rgba(143, 155, 208, .2);
  --header-bg: rgba(10, 16, 51, .94);
  --focus: #FF8A4C;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--hh) + 56px); scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.65 var(--f-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3, p { margin: 0; }
.mono { font-family: var(--f-mono); }
.ic { width: 22px; height: 22px; flex: none; }
.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .wrap { padding: 0 32px; } }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.skip {
  position: fixed; top: 8px; inset-inline-start: 8px; z-index: 300;
  background: var(--accent); color: var(--accent-ink); padding: 8px 14px; font-weight: 700; text-decoration: none;
  transform: translateY(-160%); transition: transform .3s var(--ease);
}
.skip:focus { transform: none; }
.cut { clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut)); }

/* discrete lattice: dots on a grid + one 45° vermilion slash */
.bg-lattice {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(118deg, transparent 66%, var(--accent-soft) 66%, var(--accent-soft) 66.25%, transparent 66.25%),
    radial-gradient(circle at 1px 1px, var(--dot) 1.2px, transparent 1.6px) 0 0 / 28px 28px,
    var(--bg);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,.55) 60%, rgba(0,0,0,.35) 100%);
          mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,.55) 60%, rgba(0,0,0,.35) 100%);
}

/* ---------- header ---------- */
.topbar {
  position: sticky; top: 0; z-index: 60;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; column-gap: 16px;
  padding: 0 16px;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); min-width: 0; height: var(--hh); }
.mark { position: relative; width: 34px; height: 34px; flex: none; background: var(--ink); }
:root[data-theme="dark"] .mark { background: var(--surface-2); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .mark { background: var(--surface-2); } }
.mark i { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--verm); }
.mark i:first-child { left: 6px; bottom: 6px; }
.mark i:nth-child(2) { right: 6px; top: 6px; }
.mark b { position: absolute; left: 50%; top: 4px; width: 2.5px; height: 26px; background: var(--paper); transform: translateX(-50%) rotate(35deg); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.brand-name { font-family: var(--f-display); font-size: 21px; }
.brand-sub { font-size: 12.5px; color: var(--meta); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nav {
  order: 3; flex-basis: 100%;
  display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none;
  margin: 0 -16px; padding: 0 12px 8px;
}
.nav::-webkit-scrollbar { display: none; }
.nav a {
  flex: none; color: var(--text-2); text-decoration: none; font-size: 14.5px; font-weight: 500;
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; white-space: nowrap;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}
.nav a:hover, .nav a[aria-current="true"] { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.tbtn { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: var(--text-2); }
.tbtn:hover { color: var(--accent); }
.ic-moon { display: none; }
:root[data-theme="dark"] .ic-sun { display: none; }
:root[data-theme="dark"] .ic-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ic-sun { display: none; }
  :root:not([data-theme="light"]) .ic-moon { display: block; }
}
@media (min-width: 900px) {
  .topbar { flex-wrap: nowrap; padding: 0 32px; height: var(--hh); }
  .nav { order: 0; flex-basis: auto; margin: 0 auto 0 0; padding: 0; overflow: visible; }
  .nav a { border-color: transparent; }
  html { scroll-padding-top: calc(var(--hh) + 16px); }
}

/* ---------- buttons & fields ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 22px; font-weight: 700; text-decoration: none; --cut: 10px;
  transition: transform .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: var(--surface); color: var(--text); box-shadow: inset 0 0 0 1px var(--line); }
.btn-ghost:hover { color: var(--accent); }
.field {
  width: 100%; min-height: 46px; padding: 8px 12px; font-size: 16px;
  background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 0;
}
.field:focus-visible { outline-offset: 0; border-color: var(--accent); }

/* ---------- hero ---------- */
.hero { padding: 36px 0 28px; }
.hero-grid { display: grid; gap: 28px; align-items: center; }
.eyebrow { font-family: var(--f-mono); font-size: 13px; letter-spacing: .02em; color: var(--accent); font-weight: 600; }
.hero-title {
  font-family: var(--f-display); font-weight: 400; line-height: 1.02;
  font-size: clamp(44px, 12vw, 88px); margin: 8px 0 12px; display: flex; align-items: flex-end; gap: 14px; white-space: nowrap;
}
.hero-title .slash { width: 6px; height: .8em; background: var(--accent-deco); transform: skewX(-24deg); flex: none; margin-bottom: .1em; }
.hero-sub { font-size: clamp(17px, 2.4vw, 20px); color: var(--text-2); max-width: 58ch; }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 22px 0; background: var(--line); border: 1px solid var(--line); }
.facts div { background: var(--surface); padding: 10px 14px; }
.facts dt { font-size: 12.5px; color: var(--meta); }
.facts dd { margin: 0; font-weight: 700; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-fig { margin: 0; position: relative; display: none; }
.fig-card { background: var(--surface); padding: 18px 22px; box-shadow: inset 0 0 0 1px var(--line); font-family: var(--f-mono); direction: ltr; width: 240px; }
.fig-row { display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 8px; padding: 5px 0; border-bottom: 1px solid var(--line); text-align: center; }
.fig-row:first-child { color: var(--meta); font-weight: 600; }
.fig-row:last-child { border-bottom: 0; }
.fig-row .t { color: var(--ok); font-weight: 600; } .fig-row .f { color: var(--accent); font-weight: 600; }
.fig-card { position: absolute; top: 0; right: 8%; }
.fig-graph { position: absolute; width: 250px; left: 0; bottom: 0; }
.fig-graph .edges path { fill: none; stroke: var(--meta); stroke-width: 1.6; stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 2.4s .3s var(--ease) forwards; }
.fig-graph .nodes circle { fill: var(--accent-deco); stroke: var(--bg); stroke-width: 3; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (min-width: 900px) {
  .hero { padding: 72px 0 48px; }
  .hero-grid { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
  .hero-fig { display: block; min-height: 360px; }
  .facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- sections ---------- */
.section { padding: 36px 0; }
@media (min-width: 900px) { .section { padding: 56px 0; } }
.sec-head { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 14px; row-gap: 4px; margin-bottom: 22px; }
.sec-head h2 { font-family: var(--f-display); font-weight: 400; font-size: clamp(28px, 5vw, 40px); line-height: 1.15; }
.sec-no { color: var(--accent); font-size: 14px; font-weight: 600; }
.sec-lead { flex-basis: 100%; color: var(--meta); max-width: 70ch; }
.card { background: var(--surface); padding: 20px; box-shadow: inset 0 0 0 1px var(--line); }
@media (min-width: 768px) { .card { padding: 26px; } }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.card h3:not(:first-child) { margin-top: 22px; }
.card p + p { margin-top: 10px; }
.note { color: var(--meta); font-size: 14px; margin-top: 18px; }
.small { font-size: 14.5px; }
.bullets { margin: 0; padding-inline-start: 20px; }
.bullets li + li { margin-top: 6px; }
.bullets li::marker { color: var(--accent-deco); }
.plain { list-style: none; margin: 0; padding: 0; }
.ltr-list li { direction: ltr; text-align: left; unicode-bidi: plaintext; }
.todo {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--meta);
  border: 1px dashed var(--meta); padding: 1px 8px; border-radius: 4px;
}

/* syllabus */
.syl-grid { display: grid; gap: 16px; }
.syl-side { display: grid; gap: 16px; align-content: start; }
@media (min-width: 900px) { .syl-grid { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); } }
.outcomes { margin: 0; padding: 0; list-style: none; counter-reset: o; display: grid; gap: 8px; }
.outcomes li { counter-increment: o; position: relative; padding-inline-start: 38px; }
.outcomes li::before {
  content: counter(o); position: absolute; inset-inline-start: 0; top: 1px; width: 26px; height: 26px;
  display: grid; place-items: center; font: 600 13px var(--f-mono); color: var(--accent); background: var(--accent-soft);
}
.grade-bar { display: flex; height: 44px; margin-bottom: 12px; gap: 3px; }
.grade-bar span { display: flex; align-items: center; padding: 0 12px; font-weight: 700; font-size: 14px; color: var(--accent-ink); background: var(--accent); white-space: nowrap; overflow: hidden; }
.grade-bar span:first-child { background: var(--text-2); color: var(--bg); }
.plain li { display: flex; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.plain li b { font-family: var(--f-mono); color: var(--accent); min-width: 3.2ch; }
.pass { margin: 12px 0 8px; }
.pass strong { font-family: var(--f-mono); color: var(--accent); font-size: 20px; }
.tbl { width: 100%; border-collapse: collapse; font-size: 15px; }
.tbl th, .tbl td { text-align: start; padding: 8px 6px; border-bottom: 1px solid var(--line); }
.tbl th { font-size: 13px; color: var(--meta); font-weight: 500; }
.exam-dates { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.exam-dates div { background: var(--surface-2); padding: 10px 12px; }
.exam-dates span { display: block; font-size: 13px; color: var(--meta); }
.exam-dates strong { font-family: var(--f-mono); font-size: 18px; }
.more { margin-top: 16px; background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); }
.more summary { cursor: pointer; padding: 16px 20px; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.more summary::-webkit-details-marker { display: none; }
.more summary::after { content: '+'; font: 600 20px/1 var(--f-mono); color: var(--accent); }
.more[open] summary::after { content: '−'; }
.more-grid { display: grid; gap: 22px; padding: 4px 20px 22px; }
.more-grid h3 { font-size: 16px; margin-bottom: 8px; }
@media (min-width: 900px) { .more-grid { grid-template-columns: 1fr 1fr; padding: 4px 26px 26px; } }

/* meetings */
.meetings { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
@media (min-width: 768px) { .meetings { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .meetings { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.mt { position: relative; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.mt::before { content: ''; position: absolute; inset-block: 0; inset-inline-start: 0; width: 3px; background: var(--accent-deco); }
.mt.soon::before { background: var(--line); }
.mt-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mt-no { font: 600 13px var(--f-mono); color: var(--meta); }
.mt-no strong { font-family: var(--f-display); font-weight: 400; font-size: 30px; color: var(--text); margin-inline-start: 8px; vertical-align: -4px; }
.status { font-size: 12.5px; font-weight: 700; padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.status.on { color: var(--ok); background: var(--ok-soft); }
.status.off { color: var(--meta); box-shadow: inset 0 0 0 1px var(--line); }
.mt h3 { font-size: 19px; margin: 0; line-height: 1.35; }
.mt-meta { font-size: 13.5px; color: var(--meta); }
.mt p { color: var(--text-2); font-size: 15px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.chips li { font-size: 13px; padding: 2px 10px; background: var(--surface-2); border-radius: 4px; }
.formula {
  margin-top: auto; padding: 10px 12px; background: var(--bg); border: 1px solid var(--line);
  overflow-x: auto; direction: ltr; text-align: center; font-size: 13.5px; scrollbar-width: thin;
  display: grid; gap: 6px;
}
.formula.raw { font-family: var(--f-mono); font-size: 12.5px; color: var(--meta); }
.mt-mats { display: flex; flex-wrap: wrap; gap: 8px; font-size: 14px; }

/* materials */
.materials { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
@media (min-width: 768px) { .materials { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.mat {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px; min-height: 64px;
  background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); color: var(--text); text-decoration: none;
  transition: box-shadow .25s var(--ease), transform .25s var(--ease);
}
a.mat:hover { box-shadow: inset 0 0 0 1.5px var(--accent); transform: translateY(-1px); }
.mat-ic { width: 40px; height: 46px; flex: none; display: grid; place-items: center; font: 600 11px var(--f-mono); color: var(--accent-ink); background: var(--accent); --cut: 8px; }
.mat.off { opacity: .62; }
.mat.off .mat-ic { background: var(--meta); }
.mat-body { min-width: 0; display: flex; flex-direction: column; }
.mat-tag { font-size: 12.5px; color: var(--meta); }
.mat-title { font-weight: 600; line-height: 1.35; }
.mat-when { margin-inline-start: auto; font-size: 12.5px; color: var(--meta); white-space: nowrap; }

/* practice */
.tabs { display: flex; gap: 4px; margin-bottom: -1px; position: relative; z-index: 1; }
.tabs [role="tab"] {
  padding: 10px 18px; font-weight: 600; color: var(--meta); border: 1px solid transparent; border-bottom: 0; min-height: 44px;
}
.tabs [role="tab"][aria-selected="true"] { color: var(--accent); background: var(--surface); border-color: var(--line); }
.panel { --cut: 0px; }
.tt-form label, .sets-form label { display: block; font-weight: 600; margin-bottom: 6px; }
.tt-row { display: flex; gap: 8px; }
.tt-row .btn { flex: none; }
.keys { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 5px; margin: 10px 0; direction: ltr; }
@media (min-width: 768px) { .keys { display: flex; gap: 6px; justify-content: flex-end; } .keys button { min-width: 44px; } }
.help p + p { margin-top: 2px; }
.shortcuts { text-align: left; font-size: 12.5px; }
.keys button {
  min-width: 0; height: 44px; font: 600 18px var(--f-mono); background: var(--surface-2); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line);
}
.keys button:hover { color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.help { font-size: 13.5px; color: var(--meta); }
.examples { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.examples button { font: 13px var(--f-mono); padding: 6px 10px; min-height: 36px; border: 1px dashed var(--line); color: var(--text-2); direction: ltr; }
.examples button:hover { border-color: var(--accent); color: var(--accent); }
.tt-out { margin-top: 18px; }
.verdict { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; padding: 6px 12px; margin-bottom: 12px; }
.verdict.taut { color: var(--ok); background: var(--ok-soft); }
.verdict.contra { color: var(--bad); background: var(--accent-soft); }
.verdict.cont { color: var(--text-2); background: var(--surface-2); }
.err { color: var(--bad); font-weight: 600; }
.tt-scroll { overflow-x: auto; max-width: 100%; border: 1px solid var(--line); }
.tt { border-collapse: collapse; font-family: var(--f-mono); font-size: 14px; direction: ltr; min-width: 100%; }
.tt th, .tt td { padding: 6px 12px; text-align: center; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tt th { background: var(--surface-2); font-weight: 600; position: sticky; top: 0; }
.tt td.res, .tt th.res { border-left: 2px solid var(--accent-deco); font-weight: 700; }
.tt td.T { color: var(--ok); } .tt td.F { color: var(--bad); }
.sets-inputs { display: grid; gap: 10px; }
@media (min-width: 768px) { .sets-inputs { grid-template-columns: 1.4fr 1fr 1fr; } }
.sets-inputs label { margin: 0; }
.sets-out { margin-top: 18px; display: grid; gap: 18px; }
@media (min-width: 900px) { .sets-out { grid-template-columns: 300px minmax(0, 1fr); align-items: start; } }
.venn { width: 100%; max-width: 300px; margin-inline: auto; }
.venn .u { fill: var(--bg); stroke: var(--line); }
.venn .ca { fill: var(--accent-soft); stroke: var(--accent-deco); stroke-width: 2; }
.venn .cb { fill: var(--ok-soft); stroke: var(--ok); stroke-width: 2; }
.venn text { font: 600 12px var(--f-mono); fill: var(--text); }
.venn .lbl { font: 400 18px var(--f-display); fill: var(--meta); }
.ops { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.ops li { display: grid; grid-template-columns: 5.5em minmax(0, 1fr); gap: 10px; align-items: baseline; padding: 6px 0; border-bottom: 1px solid var(--line); direction: ltr; }
.ops .k { font-family: var(--f-mono); color: var(--accent); font-weight: 600; }
.ops .v { font-family: var(--f-mono); overflow-wrap: anywhere; }

/* contact */
.contact-grid { display: grid; gap: 14px; }
@media (min-width: 768px) { .contact-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.contact-grid .card dl { margin: 0; display: grid; gap: 8px; }
.contact-grid dt { font-size: 13px; color: var(--meta); }
.contact-grid dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

/* footer */
.foot { border-top: 1px solid var(--line); padding: 22px 0 32px; color: var(--meta); font-size: 14px; }
.foot-in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }

/* KaTeX tweaks */
.katex { font-size: 1.05em; }
.formula .katex-display { margin: 0; }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .fig-graph .edges path { stroke-dashoffset: 0; }
}

/* fixes: LTR math widgets inside the RTL page */
.mono, .field.mono, .shortcuts { font-variant-ligatures: none; font-feature-settings: "calt" 0, "liga" 0; }
.venn { direction: ltr; }
.tt-scroll { direction: ltr; }