:root {
  color-scheme: light;
  --paper: #FBF4EF;
  --card: #FFFDFB;
  --ink: #2E2230;
  --ink-soft: #6A5B6E;
  --line: #EADDD8;
  --line-strong: #D9C6C2;
  --berry: #C2365F;
  --berry-deep: #9C2549;
  --berry-soft: #FBE3EA;
  --butter: #F9E4A0;
  --sage: #2F7551;
  --sage-soft: #E2F0E6;
  --bad: #B3261E;
  --bad-soft: #FCE8E4;
  --lilac-soft: #EEE7F6;

  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Figtree', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --r-s: 10px;
  --r-m: 16px;
  --r-l: 24px;
  --shadow: 0 1px 0 rgba(46, 34, 48, .04), 0 8px 24px -12px rgba(110, 50, 70, .22);
  --ease-out: cubic-bezier(.23, 1, .32, 1);
  --ease-in-out: cubic-bezier(.77, 0, .175, 1);
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background-color: var(--paper);
  /* delikatna kratka jak w zeszycie */
  background-image: radial-gradient(rgba(156, 37, 73, .09) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--sans);
  min-height: 100dvh;
  padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom));
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0; letter-spacing: -.01em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 6vw, 3rem); margin-bottom: 12px; }
h2 { font-size: 1.375rem; }
p { margin: 0 0 12px; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; touch-action: manipulation; }
[hidden] { display: none !important; }

:focus-visible { outline: 3px solid var(--berry); outline-offset: 3px; border-radius: 6px; }

.skip { position: absolute; left: 12px; top: -60px; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: var(--r-s); z-index: 50; }
.skip:focus { top: 12px; }

.ic { flex: none; }

/* ---------- nagłówek i nawigacja ---------- */

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  max-width: 920px; margin: 0 auto; padding: 16px 20px 4px;
}
.brand { white-space: nowrap; display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 600 1.25rem/1 var(--serif); }
.brand em { font-weight: 500; color: var(--berry); }

.nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  display: flex; justify-content: space-around;
  background: var(--card); border-top: 1px solid var(--line);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
}
.nav a {
  flex: 1; max-width: 96px; min-height: 52px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  text-decoration: none; font-size: .75rem; font-weight: 600; color: var(--ink-soft);
  border-radius: 12px;
  transition: background-color .15s ease, color .15s ease, transform .16s var(--ease-out);
}
.nav a:active { transform: scale(.96); }
.nav a[aria-current] { color: var(--berry-deep); background: var(--berry-soft); }

@media (min-width: 760px) {
  body { padding-bottom: 0; }
  .top { padding-top: 24px; }
  .nav { position: static; background: none; border: 0; padding: 0; gap: 4px; }
  .nav a { flex: none; max-width: none; flex-direction: row; gap: 8px; min-height: 44px; padding: 0 14px; font-size: .9375rem; }
  .nav .ic { width: 18px; height: 18px; }
}

main { max-width: 920px; margin: 0 auto; padding: 24px 20px 48px; outline: none; }
main.enter { animation: rise .28s var(--ease-out); }
.fade-in { animation: rise .24s var(--ease-out); }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }

.foot { text-align: center; color: var(--ink-soft); font-size: .8125rem; padding: 0 20px 28px; }

/* ---------- typografia pomocnicza ---------- */

.kicker { font-size: .8125rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--berry-deep); margin-bottom: 8px; }
.lead { font-size: 1.125rem; color: var(--ink-soft); max-width: 58ch; margin-bottom: 24px; }
/* zakreślacz */
.hl { background: linear-gradient(transparent 58%, var(--butter) 58%, var(--butter) 92%, transparent 92%); padding: 0 .12em; margin: 0 -.12em; }

.back { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; margin: -8px 0 8px; text-decoration: none; font-weight: 600; color: var(--ink-soft); }
.back:hover { color: var(--berry-deep); }

/* ---------- przyciski ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 999px; border: 2px solid transparent;
  font-weight: 700; text-decoration: none; white-space: nowrap;
  transition: transform .16s var(--ease-out), background-color .15s ease, border-color .15s ease;
}
.btn:active { transform: scale(.97); }
.btn.primary { background: var(--berry); color: #fff; box-shadow: 0 3px 0 var(--berry-deep); }
.btn.primary:active { box-shadow: 0 1px 0 var(--berry-deep); transform: translateY(2px) scale(.98); }
.btn.ghost { background: var(--card); border-color: var(--line-strong); }
.btn.wide { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; box-shadow: none; }
@media (hover: hover) and (pointer: fine) {
  .btn.primary:hover:not(:disabled) { background: var(--berry-deep); }
  .btn.ghost:hover { border-color: var(--berry); }
}

.row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.link { background: none; border: 0; padding: 8px 0; color: var(--berry-deep); font-weight: 600; font-size: .875rem; text-decoration: underline; text-underline-offset: 3px; }

.icon-btn {
  flex: none; width: 44px; height: 44px; display: grid; place-items: center;
  border-radius: 50%; border: 1.5px solid var(--line-strong); background: var(--card); color: var(--ink-soft);
  transition: transform .16s var(--ease-out), background-color .15s ease, color .15s ease, border-color .15s ease;
}
.icon-btn:active { transform: scale(.92); }
.icon-btn.tick .ic { opacity: .35; }
.icon-btn.tick[aria-pressed="true"] { background: var(--sage); border-color: var(--sage); color: #fff; }
.icon-btn.tick[aria-pressed="true"] .ic { opacity: 1; }

/* ---------- strona startowa ---------- */

.hero {
  position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l);
  padding: 36px 24px 24px; box-shadow: var(--shadow); margin-top: 8px;
}
/* kawałek taśmy washi */
.hero::before {
  content: ''; position: absolute; top: -13px; left: 32px; width: 110px; height: 26px; transform: rotate(-3deg);
  background: repeating-linear-gradient(135deg, #F3B8C8 0 8px, #F8D0DA 8px 16px); opacity: .92;
  clip-path: polygon(0 0, 100% 0, 97% 50%, 100% 100%, 0 100%, 3% 50%);
}
.hero .lead { margin-bottom: 20px; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat { background: var(--paper); border-radius: var(--r-m); padding: 14px 16px; }
.stat b { display: block; font: 600 1.75rem/1.1 var(--serif); font-variant-numeric: tabular-nums; color: var(--berry-deep); }
.stat small { font-size: 1rem; color: var(--ink-soft); font-weight: 500; }
.stat span { font-size: .875rem; color: var(--ink-soft); }

.tiles { display: grid; gap: 14px; margin-top: 20px; }
@media (min-width: 620px) { .tiles { grid-template-columns: 1fr 1fr; } .hero { padding: 44px 40px 32px; } }
.tile {
  position: relative; display: block; text-decoration: none; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--r-l); padding: 20px 48px 20px 20px; box-shadow: var(--shadow);
  transition: transform .2s var(--ease-out), border-color .15s ease;
}
.tile:active { transform: scale(.985); }
.tile h2 { margin: 12px 0 4px; }
.tile p { margin: 0; color: var(--ink-soft); font-size: .9375rem; }
.tile > .ic { position: absolute; right: 20px; top: 26px; color: var(--berry); transition: transform .2s var(--ease-out); }
.tile-ic { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 14px; background: var(--berry-soft); color: var(--berry-deep); }
.tile:nth-child(2) .tile-ic { background: var(--lilac-soft); color: #5B3E8C; }
.tile:nth-child(3) .tile-ic { background: #FBEFC9; color: #7A5A00; }
.tile:nth-child(4) .tile-ic { background: var(--sage-soft); color: var(--sage); }
@media (hover: hover) and (pointer: fine) {
  .tile:hover { transform: translateY(-2px); border-color: var(--line-strong); }
  .tile:hover > .ic { transform: translateX(3px); }
}


/* ---------- przełączniki, chipy ---------- */

.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; background: #F3E7E1; border-radius: 14px; }
.seg button, .seg a {
  min-height: 44px; padding: 0 16px; display: inline-flex; align-items: center; gap: 6px;
  border: 0; border-radius: 10px; background: none; text-decoration: none; font-weight: 600; color: var(--ink-soft);
  transition: background-color .15s ease, color .15s ease, transform .16s var(--ease-out);
}
.seg button:active, .seg a:active { transform: scale(.97); }
.seg [aria-pressed="true"], .seg [aria-current] { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgba(46, 34, 48, .14); }
.seg-links { display: flex; }
.seg-links a { flex: 1 1 auto; justify-content: center; font-weight: 500; font-size: .9375rem; padding: 6px 12px; text-align: center; }
.seg-links b { font-weight: 700; }

.picker { display: grid; gap: 18px; }
.pick-deck { border: 1px solid var(--line); background: var(--card); border-radius: var(--r-m); padding: 6px 16px 16px; margin: 0; min-width: 0; }
.pick-deck legend { padding: 0 8px; font: 500 1.0625rem var(--serif); }
.pick-deck legend b { font-weight: 600; color: var(--berry-deep); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.chip {
  min-height: 40px; padding: 0 14px; border-radius: 999px; border: 1.5px solid var(--line-strong);
  background: var(--card); font-size: .9375rem; font-weight: 500;
  transition: background-color .15s ease, border-color .15s ease, transform .16s var(--ease-out);
}
.chip:active { transform: scale(.96); }
.chip small { color: var(--ink-soft); font-size: .8125rem; margin-left: 2px; font-variant-numeric: tabular-nums; }
.chip[aria-pressed="true"] { background: var(--berry-soft); border-color: var(--berry); color: var(--berry-deep); font-weight: 600; }
.chip[aria-pressed="true"] small { color: inherit; }

.check { display: flex; align-items: center; gap: 10px; min-height: 44px; cursor: pointer; font-weight: 500; }
.check input { width: 22px; height: 22px; accent-color: var(--berry); }

.field { margin-top: 20px; }
.field-label { display: block; font-weight: 600; font-size: .9375rem; margin-bottom: 6px; }

.startbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 28px; padding: 16px 16px 16px 20px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l);
}
.startbar p { margin: 0; }
@media (max-width: 759px) {
  .startbar { position: sticky; bottom: calc(var(--nav-h) + env(safe-area-inset-bottom) + 10px); box-shadow: var(--shadow); z-index: 5; }
}

/* ---------- lista słówek ---------- */

.search { margin: 20px 0 8px; }
.search label, form label { display: block; font-weight: 600; font-size: .9375rem; margin-bottom: 6px; }
input[type="search"], .answer {
  width: 100%; min-height: 52px; padding: 0 16px; border-radius: var(--r-m);
  border: 2px solid var(--line-strong); background: var(--card); font-size: 1.125rem;
  transition: border-color .15s ease;
}
input[type="search"]:focus, .answer:focus, .blank:focus { outline: none; border-color: var(--berry); box-shadow: 0 0 0 4px var(--berry-soft); }
input::placeholder { color: #9A8B9C; }

.cat { margin-top: 28px; }
.cat h2 { display: inline-block; margin-bottom: 8px; }
.words { list-style: none; margin: 0; padding: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); overflow: hidden; }
.word { display: flex; align-items: center; gap: 8px; padding: 10px 12px 10px 16px; border-top: 1px solid var(--line); }
.word:first-child { border-top: 0; }
.word-txt { flex: 1; min-width: 0; display: grid; gap: 1px; }
.word-txt b { font: 600 1.0625rem/1.35 var(--serif); overflow-wrap: anywhere; }
.word-txt span { color: var(--ink-soft); font-size: .9375rem; line-height: 1.4; }
.empty { margin-top: 24px; color: var(--ink-soft); }

/* ---------- postęp ---------- */

.progress { height: 10px; border-radius: 999px; background: #F0E2DC; overflow: hidden; }
.progress-bar { height: 100%; background: var(--berry); border-radius: inherit; transform-origin: left; transition: transform .4s var(--ease-out); }
.progress-txt { font-size: .875rem; color: var(--ink-soft); margin: 6px 0 16px; font-variant-numeric: tabular-nums; }
.progress-txt b { color: var(--ink); }

/* ---------- fiszki ---------- */

.flash-bar { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px; margin-top: 20px; }
.mini-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.mini-grid.wide { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.mini { display: block; width: 100%; padding: 0; border: 0; background: none; perspective: 900px; border-radius: var(--r-m); }
.mini-in { position: relative; display: block; height: 132px; transform-style: preserve-3d; transition: transform .45s var(--ease-in-out); }
.mini:active .mini-in { transform: scale(.97); }
.mini.is-flipped .mini-in { transform: rotateY(180deg); }
.mini.is-flipped:active .mini-in { transform: rotateY(180deg) scale(.97); }
.face {
  position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  display: flex; align-items: center; justify-content: center; padding: 12px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m); box-shadow: var(--shadow); text-align: center;
}
.face-back { transform: rotateY(180deg); background: var(--berry-soft); border-color: #F3C4D1; }
.face b { font: 600 1.0625rem/1.3 var(--serif); overflow-wrap: anywhere; text-wrap: balance; }
.face-back b { color: var(--berry-deep); }
@media (hover: hover) and (pointer: fine) { .mini:hover .face { border-color: var(--berry); } }

/* ---------- quiz i ćwiczenia ---------- */

.qcard { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l); padding: 24px 20px; box-shadow: var(--shadow); }
@media (min-width: 620px) { .qcard { padding: 32px; } }
.prompt { font-size: clamp(1.625rem, 5.4vw, 2.25rem); margin-bottom: 4px; overflow-wrap: anywhere; }
.prompt.small { font-size: clamp(1.25rem, 4.2vw, 1.5rem); line-height: 1.3; margin-bottom: 20px; }
.hint { color: var(--ink-soft); font-size: .9375rem; margin-bottom: 20px; }
.note { min-height: 1.4em; margin: 6px 0 0; font-size: .875rem; color: var(--ink-soft); }
form .note { color: var(--bad); font-weight: 600; }

.fb { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: var(--r-m); margin: 4px 0 20px; }
.fb > .ic { margin-top: 3px; }
.fb div { display: grid; gap: 2px; min-width: 0; }
.fb-ok { background: var(--sage-soft); color: #1F5238; }
.fb-bad { background: var(--bad-soft); color: #7D1A14; }
.fb .correct { font: 600 1.25rem/1.3 var(--serif); color: var(--ink); overflow-wrap: anywhere; }
.fb .given, .fb .alts { font-size: .9375rem; }
#fbbox .fb { margin: 20px 0 0; }

.opts { display: grid; gap: 10px; }
.opt {
  display: flex; align-items: center; gap: 12px; width: 100%; min-height: 54px; padding: 10px 16px; text-align: left;
  background: var(--card); border: 2px solid var(--line-strong); border-radius: var(--r-m); font-weight: 500;
  transition: border-color .15s ease, background-color .15s ease, transform .16s var(--ease-out);
}
.opt:active:not(:disabled) { transform: scale(.985); }
.opt:disabled { cursor: default; }
.opt-mark { flex: none; width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--line-strong); background: var(--card); transition: border-color .15s ease, background-color .15s ease, box-shadow .15s ease; }
.opt-mark.sq { border-radius: 7px; }
.opt[aria-pressed="true"] { border-color: var(--berry); background: var(--berry-soft); }
.opt[aria-pressed="true"] .opt-mark { border-color: var(--berry); background: var(--berry); box-shadow: inset 0 0 0 4px var(--card); }
.opt.is-ok { border-color: var(--sage); background: var(--sage-soft); }
.opt.is-ok .opt-mark { border-color: var(--sage); background: var(--sage); box-shadow: inset 0 0 0 4px var(--sage-soft); }
.opt.is-bad { border-color: var(--bad); background: var(--bad-soft); }
.opt.is-bad .opt-mark { border-color: var(--bad); background: var(--bad); box-shadow: inset 0 0 0 4px var(--bad-soft); }
@media (hover: hover) and (pointer: fine) {
  .opt:hover:not(:disabled) { border-color: var(--berry); }
  .chip:hover { border-color: var(--berry); }
  .pair:hover:not(:disabled) { border-color: var(--berry); }
}

.sentence { font: 500 clamp(1.25rem, 4.2vw, 1.5rem)/2 var(--serif); margin: 0; }
.blank {
  width: 9.5em; max-width: 100%; min-height: 44px; margin: 0 4px; padding: 0 10px; text-align: center;
  border: 0; border-bottom: 3px solid var(--berry); border-radius: 8px 8px 0 0; background: var(--berry-soft); font: inherit; line-height: 1.2;
}
.blank.is-ok { background: var(--sage-soft); border-color: var(--sage); }
.blank.is-bad { background: var(--bad-soft); border-color: var(--bad); text-decoration: line-through; }

.pairs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.pcol { display: grid; gap: 10px; align-content: start; }
.pair {
  min-height: 56px; padding: 8px 12px; border-radius: var(--r-m); border: 2px solid var(--line-strong); background: var(--card);
  font-size: .9375rem; font-weight: 500; line-height: 1.3; overflow-wrap: anywhere;
  transition: border-color .15s ease, background-color .15s ease, transform .16s var(--ease-out), opacity .2s ease;
}
.pair:active:not(:disabled) { transform: scale(.97); }
.pair.is-sel { border-color: var(--berry); background: var(--berry-soft); }
.pair.is-ok { border-color: #BBDCC6; background: var(--sage-soft); color: #1F5238; cursor: default; }

.line { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; min-height: 68px; padding: 12px; border-radius: var(--r-m); border: 2px dashed var(--line-strong); background: var(--paper); }
.line.is-ok { border: 2px solid var(--sage); background: var(--sage-soft); }
.line.is-bad { border: 2px solid var(--bad); background: var(--bad-soft); }
.line-empty { color: var(--ink-soft); font-size: .9375rem; }
.line-end { font: 600 1.375rem var(--serif); }
.bank { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tok {
  min-height: 44px; padding: 0 14px; border-radius: 12px; border: 2px solid var(--line-strong); border-bottom-width: 4px; background: var(--card);
  font: 500 1.0625rem var(--serif);
  transition: transform .16s var(--ease-out), opacity .15s ease;
}
.tok:active:not(:disabled) { transform: scale(.95); }
.tok[data-used] { opacity: .25; }
.tok:disabled { cursor: default; }

.shake { animation: shake .3s ease-out; }
@keyframes shake { 20% { transform: translateX(-6px); } 50% { transform: translateX(5px); } 80% { transform: translateX(-3px); } }

.result { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l); padding: 32px 24px; box-shadow: var(--shadow); }
.result h2 { margin: 24px 0 10px; }

/* ---------- gramatyka ---------- */

.topics { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.topic {
  display: flex; align-items: center; gap: 14px; padding: 14px 16px; text-decoration: none;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-m);
  transition: transform .2s var(--ease-out), border-color .15s ease;
}
.topic:active { transform: scale(.99); }
.topic-n { flex: none; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: var(--butter); font: 600 1.125rem var(--serif); }
.topic-txt { flex: 1; min-width: 0; display: grid; }
.topic-txt small { font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--berry-deep); }
.topic-txt b { font: 600 1.1875rem/1.3 var(--serif); }
.topic-txt span { color: var(--ink-soft); font-size: .9375rem; }
.topic-done { flex: none; font-size: .875rem; font-weight: 600; color: var(--ink-soft); font-variant-numeric: tabular-nums; padding: 4px 10px; border-radius: 999px; background: var(--paper); }
.topic-done.full { background: var(--sage-soft); color: var(--sage); }
@media (hover: hover) and (pointer: fine) { .topic:hover { border-color: var(--berry); transform: translateX(3px); } }

.theory { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-l); padding: 8px 20px 24px; box-shadow: var(--shadow); max-width: 720px; }
@media (min-width: 620px) { .theory { padding: 16px 36px 32px; } }
.theory > p:first-child { margin-top: 16px; font-size: 1.125rem; }
.theory h3 { font-size: 1.3125rem; margin: 32px 0 10px; }
.theory h3::before { content: ''; display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--berry); margin-right: 10px; vertical-align: middle; }
.theory ul { padding-left: 20px; margin: 0 0 12px; display: grid; gap: 6px; }
.theory li::marker { color: var(--berry); }
.theory i { font-family: var(--serif); font-size: 1.04em; }
.theory b { font-weight: 700; }
.theory i b, .theory .ex b, .theory td b { color: var(--berry-deep); }
.ex { border-left: 4px solid var(--butter); padding: 4px 0 4px 14px; margin: 10px 0; display: grid; gap: 2px; }
.ex span { font: 500 1.125rem/1.45 var(--serif); }
.ex small { color: var(--ink-soft); font-size: .9375rem; }
.tip { background: #FEF6DA; border-radius: var(--r-m); padding: 14px 16px; margin: 16px 0; font-size: 1rem; }
.theory table { width: 100%; border-collapse: separate; border-spacing: 0; margin: 12px 0; font-size: .9375rem; border: 1px solid var(--line); border-radius: var(--r-m); overflow: hidden; }
.theory th { text-align: left; background: var(--berry-soft); color: var(--berry-deep); font-size: .8125rem; letter-spacing: .03em; }
.theory th, .theory td { padding: 10px 12px; vertical-align: top; border-top: 1px solid var(--line); }
.theory tr:first-child > * { border-top: 0; }
.theory td + td, .theory th + th { border-left: 1px solid var(--line); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}