:root {
  --bg: #f6f4ee; --bg2: #ffffff; --ink: #1f2a24; --ink2: #56635b; --line: #dfe3da;
  --acc: #9b2335; --acc2: #f7e8ea; --acc3: #6d1424; --warn: #b4531a; --warn2: #fbeee3;
  --ok: #2e8b57; --bad: #c0392b; --gold: #c99a1e; --shadow: 0 1px 3px rgba(20,40,30,.08), 0 4px 16px rgba(20,40,30,.05);
  --r: 14px;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #121815; --bg2: #1a221e; --ink: #e5ece7; --ink2: #9fb0a6; --line: #2c3832;
  --acc: #e88593; --acc2: #3a1e23; --acc3: #f6b8c1; --warn: #f0a46a; --warn2: #3a281b;
  --ok: #5fcf8f; --bad: #ef7a6c; --shadow: 0 1px 3px rgba(0,0,0,.4);
} }
:root[data-theme="dark"] {
  --bg: #121815; --bg2: #1a221e; --ink: #e5ece7; --ink2: #9fb0a6; --line: #2c3832;
  --acc: #e88593; --acc2: #3a1e23; --acc3: #f6b8c1; --warn: #f0a46a; --warn2: #3a281b;
  --ok: #5fcf8f; --bad: #ef7a6c; --shadow: 0 1px 3px rgba(0,0,0,.4);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16.5px/1.6 'Nunito Sans', system-ui, sans-serif; }
h1, h2, h3 { font-family: 'Fraunces', Georgia, serif; line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(1.7rem, 4.5vw, 2.5rem); }
h2 { font-size: 1.45rem; margin-top: 1.2em; }
h3 { font-size: 1.15rem; margin-top: 1.1em; }
a { color: var(--acc); }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: var(--ink); background: var(--bg2); border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; }
textarea { width: 100%; min-height: 80px; resize: vertical; }

/* nagłówek */
.top { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px; padding: 8px 16px;
       background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); font-family: 'Fraunces', serif; font-size: 1.15rem; white-space: nowrap; }
.logo b { color: var(--acc); }
.logo-i { font-size: 1.4rem; }
.menu { display: flex; gap: 2px; overflow-x: auto; flex: 1; scrollbar-width: none; }
.menu::-webkit-scrollbar { display: none; }
.menu a { padding: 6px 12px; border-radius: 99px; text-decoration: none; color: var(--ink2); font-weight: 600; white-space: nowrap; font-size: .95rem; }
.menu a:hover { background: var(--acc2); color: var(--ink); }
.menu a.on { background: var(--acc); color: #fff; }
.motyw { border: 1px solid var(--line); background: var(--bg2); color: var(--ink); border-radius: 99px; width: 36px; height: 36px; flex: none; }
@media (max-width: 640px) { .logo span:last-child { display: none; } .top { gap: 6px; padding: 8px 10px; } .menu a { padding: 6px 9px; } }

main { max-width: 1040px; margin: 0 auto; padding: 22px 16px 40px; min-height: 70vh; }
.stopka { text-align: center; font-size: .85rem; color: var(--ink2); padding: 20px 16px 30px; border-top: 1px solid var(--line); }

/* elementy wspólne */
.karta { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; box-shadow: var(--shadow); }
.siatka { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--acc); background: var(--acc); color: #fff; padding: 8px 16px;
       border-radius: 99px; font-weight: 700; text-decoration: none; }
.btn.jasny { background: transparent; color: var(--acc); }
.btn.maly { padding: 4px 12px; font-size: .9rem; }
.btn:disabled { opacity: .45; cursor: default; }
.btn.ok { background: var(--ok); border-color: var(--ok); }
.btn.zle { background: var(--bad); border-color: var(--bad); }
.pasek { height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; }
.pasek > i { display: block; height: 100%; background: linear-gradient(90deg, var(--acc), #e08a96); border-radius: 99px; }
.mini { font-size: .85rem; color: var(--ink2); }
.etyk { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 2px 8px; border-radius: 99px; background: var(--acc2); color: var(--acc3); }
.rzad { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.odstep { height: 14px; }

/* start */
.hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 18px; align-items: stretch; margin-bottom: 18px; }
@media (max-width: 760px) { .hero { grid-template-columns: 1fr; } }
.hero .karta.glowna { background: linear-gradient(135deg, var(--acc3), var(--acc)); color: #fff; border: none; }
.hero .karta.glowna h1 { color: #fff; }
.hero .karta.glowna p { opacity: .92; }
.licznik { display: flex; gap: 14px; margin: 14px 0 6px; }
.licznik div { background: rgba(255,255,255,.15); border-radius: 12px; padding: 8px 14px; text-align: center; }
.licznik b { display: block; font: 700 1.8rem/1 'Fraunces', serif; }
.stat { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat div { background: var(--acc2); border-radius: 12px; padding: 10px 12px; }
.stat b { display: block; font: 700 1.5rem/1.1 'Fraunces', serif; color: var(--acc3); }

/* kafel działu */
.dzial { display: flex; flex-direction: column; gap: 8px; text-decoration: none; color: var(--ink); transition: transform .15s, box-shadow .15s; }
.dzial:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(90,20,30,.12); }
.dzial .ikona { font-size: 2rem; line-height: 1; }
.dzial h3 { margin: 0; }
.dzial .nr { color: var(--ink2); font-size: .8rem; font-weight: 700; }

/* strona działu */
.zakladki { display: flex; gap: 6px; border-bottom: 2px solid var(--line); margin: 14px 0 18px; overflow-x: auto; }
.zakladki a { padding: 8px 14px; text-decoration: none; color: var(--ink2); font-weight: 700; border-bottom: 3px solid transparent; margin-bottom: -2px; white-space: nowrap; }
.zakladki a.on { color: var(--acc); border-color: var(--acc); }
.temat { margin-bottom: 14px; }
.temat > summary { list-style: none; cursor: pointer; display: flex; gap: 10px; align-items: center; font: 700 1.12rem 'Fraunces', serif; }
.temat > summary::-webkit-details-marker { display: none; }
.temat > summary::before { content: "▸"; color: var(--acc); transition: transform .15s; }
.temat[open] > summary::before { transform: rotate(90deg); }
.temat .tresc { margin-top: 10px; }
.tresc ul, .tresc ol { padding-left: 1.3em; }
.tresc li { margin: .25em 0; }
.tresc table { border-collapse: collapse; width: 100%; margin: 10px 0; font-size: .95rem; display: block; overflow-x: auto; }
.tresc th, .tresc td { border: 1px solid var(--line); padding: 6px 9px; text-align: left; vertical-align: top; }
.tresc th { background: var(--acc2); }
.tresc .wzor { font-family: Consolas, monospace; background: var(--acc2); padding: 8px 12px; border-radius: 8px; overflow-x: auto; white-space: nowrap; }
.pulapka { background: var(--warn2); border-left: 4px solid var(--warn); padding: 8px 12px; border-radius: 0 8px 8px 0; margin: 10px 0; }
.pulapka::before { content: "⚠ Pułapka maturalna: "; font-weight: 700; color: var(--warn); }
.zapamietaj { background: var(--acc2); border-left: 4px solid var(--acc); padding: 8px 12px; border-radius: 0 8px 8px 0; margin: 10px 0; }
.zapamietaj::before { content: "★ Zapamiętaj: "; font-weight: 700; color: var(--acc3); }
.zrobione { margin-left: auto; font: 600 .85rem 'Nunito Sans', sans-serif; display: flex; gap: 6px; align-items: center; color: var(--ink2); }
.zrobione input { width: 18px; height: 18px; accent-color: var(--acc); }
.schemat { margin: 14px 0; text-align: center; }
.schemat svg { max-width: 100%; height: auto; }
.schemat figcaption { font-size: .85rem; color: var(--ink2); margin-top: 4px; }
.schemat svg text { font-family: 'Nunito Sans', sans-serif; fill: var(--ink); }

/* fiszki */
.fiszka { perspective: 1200px; max-width: 560px; margin: 0 auto; height: 280px; cursor: pointer; }
.fiszka .w { position: relative; width: 100%; height: 100%; transition: transform .45s; transform-style: preserve-3d; }
.fiszka.obr .w { transform: rotateY(180deg); }
.fiszka .s { position: absolute; inset: 0; backface-visibility: hidden; display: flex; align-items: center; justify-content: center; text-align: center;
             padding: 24px; border-radius: 18px; background: var(--bg2); border: 1px solid var(--line); box-shadow: var(--shadow); font-size: 1.15rem; overflow: auto; }
.fiszka .s.tyl { transform: rotateY(180deg); background: var(--acc2); }
.fiszka .s small { position: absolute; top: 10px; left: 14px; font-size: .75rem; color: var(--ink2); }
.pudelka { display: flex; gap: 6px; justify-content: center; margin: 12px 0; }
.pudelka span { min-width: 44px; text-align: center; padding: 4px 6px; border-radius: 8px; background: var(--acc2); font-size: .8rem; }
.pudelka b { display: block; font-size: 1.1rem; }

/* quiz */
.pyt { margin-bottom: 10px; }
.odp { display: grid; gap: 8px; margin: 12px 0; }
.odp button { text-align: left; border: 1px solid var(--line); background: var(--bg2); color: var(--ink); padding: 10px 14px; border-radius: 10px; }
.odp button:hover:not(:disabled) { border-color: var(--acc); }
.odp button.dobra { background: color-mix(in srgb, var(--ok) 18%, var(--bg2)); border-color: var(--ok); }
.odp button.zla { background: color-mix(in srgb, var(--bad) 15%, var(--bg2)); border-color: var(--bad); }
.wyj { background: var(--acc2); padding: 10px 14px; border-radius: 10px; }

/* zadania */
.zad .polecenie { font-weight: 700; margin-top: 14px; }
.zad .model { margin-top: 10px; background: var(--acc2); border-radius: 10px; padding: 10px 14px; }
.zad .model .kryt { margin-top: 6px; font-size: .9rem; color: var(--ink2); }
.ocena { margin-top: 8px; }

/* krzyżówki */
.punnett { border-collapse: collapse; margin: 14px 0; }
.punnett th, .punnett td { border: 1px solid var(--line); padding: 8px 10px; text-align: center; min-width: 54px; }
.punnett th { background: var(--acc2); }
.punnett td.dom { background: color-mix(in srgb, var(--acc) 14%, var(--bg2)); }
.wynik li { margin: .2em 0; }

/* plan */
.tydz { display: grid; grid-template-columns: 120px 1fr; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.tydz.teraz { background: var(--acc2); border-radius: 10px; padding: 10px; }
.tydz .data { font-weight: 700; font-size: .9rem; }
@media (max-width: 560px) { .tydz { grid-template-columns: 1fr; gap: 2px; } }

.kod { width: 100%; font-family: Consolas, monospace; font-size: .8rem; min-height: 120px; }
.ukryj { display: none !important; }

/* polski: ustny, licznik słów, cytaty */
.cytat { font-family: 'Fraunces', Georgia, serif; font-style: italic; border-left: 3px solid var(--acc); padding: 4px 12px; margin: 10px 0; color: var(--ink2); }
.pytanie { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--line); }
.pytanie .nr { font: 700 1rem 'Fraunces', serif; color: var(--acc); min-width: 2.2em; }
.pytanie details { flex: 1; }
.pytanie summary { cursor: pointer; font-weight: 700; }
.pytanie .plan { margin-top: 8px; }
.pytanie input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--acc); margin-top: 3px; }
.zegar { font: 700 3rem/1 'Fraunces', serif; color: var(--acc); text-align: center; margin: 10px 0; }
.licz { font: 700 1.3rem 'Fraunces', serif; }
.wyp textarea { min-height: 320px; font-size: 1rem; line-height: 1.6; }
.lista-kontr li { list-style: none; margin: 4px 0; }
.lista-kontr input { accent-color: var(--acc); margin-right: 6px; }