/* PolishPro site — "Bold blocks" (docs/THEME.md). Fonts are self-hosted subsets (Latin + Polish). */
@font-face { font-family: "Bricolage Grotesque"; src: url("fonts/BricolageGrotesque-ExtraBold.woff2") format("woff2"); font-weight: 700 800; font-display: swap; }
@font-face { font-family: "DM Sans"; src: url("fonts/DMSans-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "DM Sans"; src: url("fonts/DMSans-Medium.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "DM Sans"; src: url("fonts/DMSans-Bold.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --crimson: #DC143C;
  --crimson-pressed: #A30F2D;
  --crimson-soft: #FFE3E8;
  --on-crimson: #FFFFFF;
  --butter: #FFD24D;
  --sky: #8FD0FF;
  --mint: #7EE0B0;
  --lilac: #C3B2FF;
  --peach: #FFB38A;
  --tile-ink: #1B1B1F;
  --bg: #FFF8F1;
  --surface: #FFFFFF;
  --surface2: #F4ECE4;
  --ink: #1B1B1F;
  --muted: #6E6770;
  --line: rgba(27, 27, 31, .08);
  --night: #1B1B1F;
  --link: #C8102E;
  --shadow: 0 4px 18px rgba(0, 0, 0, .05);
  --shadow-lift: 0 20px 40px rgba(0, 0, 0, .14);
  --display: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --text: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --crimson-soft: #4A1522;
    --butter: #FFCB2E;
    --sky: #6EC2FF;
    --mint: #5ED39B;
    --lilac: #AE98FF;
    --peach: #FF9E6E;
    --bg: #131015;
    --surface: #221E26;
    --surface2: #302A34;
    --ink: #F7F2EF;
    --muted: #A79FA8;
    --line: rgba(255, 255, 255, .10);
    --night: #2C2731;
    --link: #FF5A6E;
    --shadow: none;
    --shadow-lift: 0 20px 40px rgba(0, 0, 0, .45);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.55 var(--text);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--link); text-underline-offset: 2px; }
:focus-visible { outline: 3px solid var(--crimson); outline-offset: 3px; border-radius: 8px; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; }
.skip:focus { left: 8px; z-index: 20; background: var(--surface); padding: 8px 12px; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink);
  font: 800 21px/1 var(--display); letter-spacing: -.02em;
}
.brand img { width: 34px; height: 34px; border-radius: 9px; box-shadow: 0 0 0 1px var(--line); }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 14px; padding: 8px 12px; border-radius: 999px; }
.nav a:hover { background: var(--surface2); }
.lang { display: flex; gap: 2px; padding: 3px; border-radius: 999px; background: var(--surface2); }
.lang button, .lang a {
  border: 0; background: transparent; color: var(--muted); cursor: pointer;
  border-radius: 999px; padding: 5px 10px; font: 700 13px/1 var(--text); min-height: 30px;
}
.lang a { display: inline-flex; align-items: center; text-decoration: none; }
.lang button[aria-pressed="true"], .lang a[aria-current="page"] { background: var(--ink); color: var(--bg); }
@media (max-width: 760px) { .nav { display: none; } .lang { margin-left: auto; } }

/* ---------- Buttons / badges ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.badge { display: inline-block; border-radius: 12px; line-height: 0; transition: transform .15s ease; }
.badge:hover { transform: translateY(-2px); }
.badge img { height: 54px; width: auto; }
.os-android .badge.play { order: -1; }

/* ---------- Hero ---------- */
.hero { padding: 24px 0 8px; }
.hero-block {
  position: relative; overflow: hidden; isolation: isolate;
  background: var(--crimson); color: var(--on-crimson);
  border-radius: 40px; padding: 56px 56px 0;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 24px;
}
.hero-block::before, .hero-block::after {
  content: ""; position: absolute; border-radius: 50%; background: rgba(255, 255, 255, .10); z-index: -1;
}
.hero-block::before { width: 520px; height: 520px; right: -140px; top: -180px; }
.hero-block::after { width: 260px; height: 260px; left: -90px; bottom: -120px; background: rgba(255, 255, 255, .06); }
.nowrap { white-space: nowrap; }
.overline { font: 700 13px/1.2 var(--text); letter-spacing: .06em; text-transform: uppercase; margin: 0 0 14px; }
.hero h1 {
  font: 800 clamp(48px, 7.4vw, 92px)/.92 var(--display); letter-spacing: -.035em; margin: 0 0 20px;
}
.hero .sub { font-size: clamp(17px, 1.6vw, 19px); line-height: 1.5; max-width: 34em; margin: 0 0 28px; opacity: .94; }
.hero-copy { padding-bottom: 48px; align-self: center; }
.platforms { margin: 14px 0 0; font-size: 14px; opacity: .85; }

.phones { position: relative; min-height: 470px; align-self: end; }
.phone {
  position: absolute; bottom: -40px; width: 46%; aspect-ratio: 480 / 959;
  border-radius: 28px; overflow: hidden; box-shadow: var(--shadow-lift); background: #fff;
  border: 6px solid #1B1B1F;
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phone.p1 { left: 2%; transform: rotate(-8deg); bottom: -70px; }
.phone.p2 { left: 27%; z-index: 2; bottom: -20px; }
.phone.p3 { right: -2%; transform: rotate(8deg); bottom: -80px; }

/* App card under the hero */
.appcard {
  position: relative; z-index: 3; margin: -36px auto 0; max-width: 760px;
  background: var(--surface); border-radius: 28px; box-shadow: var(--shadow-lift);
  border: 1px solid var(--line);
  display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center; padding: 18px 22px;
}
.appcard > img { width: 76px; height: 76px; border-radius: 18px; box-shadow: 0 0 0 1px var(--line); }
.appcard h2 { font: 800 24px/1.05 var(--display); letter-spacing: -.02em; margin: 0 0 4px; }
.appcard p { margin: 0; color: var(--muted); font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  background: var(--surface2); color: var(--ink); font: 700 12px/1.3 var(--text);
}
.chip svg { width: 13px; height: 13px; }
.appcard .badges { flex-direction: column; gap: 8px; }
.appcard .badge img { height: 44px; }

/* ---------- Word marquee ---------- */
.marquee { overflow: hidden; padding: 56px 0 8px; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 14px; width: max-content; animation: slide 48s linear infinite; }
.marquee span {
  font: 800 26px/1 var(--display); letter-spacing: -.02em; padding: 14px 22px; border-radius: 999px;
  color: var(--tile-ink); white-space: nowrap;
}
.marquee span:nth-child(5n+1) { background: var(--butter); }
.marquee span:nth-child(5n+2) { background: var(--sky); }
.marquee span:nth-child(5n+3) { background: var(--mint); }
.marquee span:nth-child(5n+4) { background: var(--lilac); }
.marquee span:nth-child(5n+5) { background: var(--peach); }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
section { padding: 72px 0 0; scroll-margin-top: 72px; }
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head .overline { color: var(--crimson); }
@media (prefers-color-scheme: dark) { .section-head .overline { color: var(--link); } }
h2.title { font: 800 clamp(34px, 4.6vw, 56px)/1 var(--display); letter-spacing: -.03em; margin: 0 0 14px; }
.lead { color: var(--muted); font-size: 18px; margin: 0; }

/* Exam parts */
.parts { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.part {
  position: relative; overflow: hidden; border-radius: 26px; padding: 18px; min-height: 196px;
  color: var(--tile-ink); display: flex; flex-direction: column;
}
.part .icon {
  width: 44px; height: 44px; border-radius: 50%; background: rgba(255, 255, 255, .6);
  display: grid; place-items: center; margin-bottom: auto;
}
.part .icon svg { width: 22px; height: 22px; }
.part .glyph {
  position: absolute; right: -6px; top: -18px; font: 800 120px/1 var(--display); opacity: .18; pointer-events: none;
}
.part h3 { font: 800 22px/1.05 var(--display); letter-spacing: -.02em; margin: 18px 0 2px; }
.part .pl { font-weight: 700; font-size: 13px; opacity: .7; margin: 0 0 6px; }
.part p { margin: 0; font-size: 14px; line-height: 1.4; }
.c-butter { background: var(--butter); } .c-sky { background: var(--sky); } .c-mint { background: var(--mint); }
.c-lilac { background: var(--lilac); } .c-peach { background: var(--peach); }
@media (max-width: 980px) { .parts { grid-template-columns: repeat(2, minmax(0, 1fr)); } .part:last-child { grid-column: span 2; } }
.exam-rules { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.exam-rules .chip { background: var(--surface); box-shadow: var(--shadow); border: 1px solid var(--line); padding: 8px 14px; font-size: 13px; }

/* Feature bento */
.bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.tile {
  border-radius: 30px; padding: 28px; position: relative; overflow: hidden;
  background: var(--surface); box-shadow: var(--shadow); border: 1px solid var(--line);
}
.tile h3 { font: 800 28px/1.02 var(--display); letter-spacing: -.02em; margin: 0 0 10px; }
.tile p { margin: 0; font-size: 16px; }
.tile.colored { color: var(--tile-ink); border: 0; }
.tile.c-butter { background: var(--butter); } .tile.c-sky { background: var(--sky); } .tile.c-mint { background: var(--mint); }
.tile.c-lilac { background: var(--lilac); } .tile.c-peach { background: var(--peach); }
.tile.dark { background: var(--night); color: #F7F2EF; border: 0; }
.tile.dark p { color: rgba(247, 242, 239, .8); }
.t-ai { grid-column: span 4; min-height: 300px; }
.t-habit { grid-column: span 2; }
.t-vocab { grid-column: span 3; }
.t-topics { grid-column: span 3; }
.t-private { grid-column: span 6; display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: center; }
@media (max-width: 980px) {
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .t-ai, .t-habit, .t-vocab, .t-topics, .t-private { grid-column: span 2; }
}
/* AI tile: score bars */
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: end; }
.score { background: rgba(255, 255, 255, .06); border-radius: 22px; padding: 18px; }
.score-row { display: grid; grid-template-columns: 1fr auto; gap: 4px 10px; font-size: 13px; margin-bottom: 10px; }
.score-row:last-child { margin-bottom: 0; }
.score-row b { font: 800 15px/1 var(--display); font-variant-numeric: tabular-nums; }
.bar { grid-column: 1 / -1; height: 8px; border-radius: 99px; background: rgba(255, 255, 255, .14); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 99px; background: var(--mint); }
.bar i.warn { background: var(--butter); }
.fix { margin-top: 12px; font-size: 14px; line-height: 1.5; }
.fix s { color: rgba(247, 242, 239, .55); }
.fix ins { text-decoration: none; background: var(--mint); color: var(--tile-ink); border-radius: 6px; padding: 0 5px; font-weight: 700; }
@media (max-width: 640px) { .ai-grid { grid-template-columns: 1fr; } }
/* Habit row */
.habit { display: flex; justify-content: space-between; gap: 4px; margin-top: 22px; }
.day { display: grid; justify-items: center; gap: 6px; font: 700 12px/1 var(--text); }
.day i {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 255, 255, .55); color: var(--crimson); font-style: normal;
}
.day.done i { background: #fff; }
.day.done i svg { width: 18px; height: 18px; }
.day.today i { background: transparent; border: 2px dashed rgba(27, 27, 31, .55); font-size: 10px; color: var(--tile-ink); }
.tile .streak { font: 800 64px/.9 var(--display); letter-spacing: -.03em; margin: 18px 0 0; font-variant-numeric: tabular-nums; }
.tile .streak small { font: 700 14px/1 var(--text); letter-spacing: 0; margin-left: 6px; }
/* Vocabulary modes */
.modes { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.modes span { background: rgba(255, 255, 255, .6); border-radius: 999px; padding: 7px 14px; font: 700 14px/1 var(--text); }
.flash {
  margin-top: 20px; background: #fff; border-radius: 22px; padding: 18px 20px; display: flex; align-items: baseline;
  justify-content: space-between; gap: 12px; box-shadow: 0 10px 24px rgba(0, 0, 0, .10);
}
.flash b { font: 800 30px/1 var(--display); letter-spacing: -.02em; }
.flash span { color: #6E6770; font-size: 14px; }
/* Topic mini tiles */
.minitiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 20px; }
.minitile { border-radius: 18px; padding: 12px; min-height: 92px; color: var(--tile-ink); position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: flex-end; }
.minitile b { font: 800 16px/1.05 var(--display); }
.minitile em { font-style: normal; font-size: 12px; opacity: .75; }
.minitile::before { content: attr(data-g); position: absolute; right: -4px; top: -14px; font: 800 72px/1 var(--display); opacity: .18; }
.minitile .pct { position: absolute; left: 10px; top: 10px; background: rgba(255, 255, 255, .6); border-radius: 999px; padding: 2px 8px; font: 700 11px/1.4 var(--text); }
@media (max-width: 480px) { .minitiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } .minitile:nth-child(3) { display: none; } }
.t-private .lock {
  width: 76px; height: 76px; border-radius: 50%; background: rgba(255, 255, 255, .6); display: grid; place-items: center;
}
.t-private .lock svg { width: 34px; height: 34px; }
.t-private ul { display: flex; flex-wrap: wrap; gap: 6px 18px; list-style: none; padding: 0; margin: 12px 0 0; font-weight: 700; font-size: 14px; }
.t-private li::before { content: "✓ "; }
@media (max-width: 560px) { .t-private { grid-template-columns: 1fr; } }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 26px; padding: 22px; box-shadow: var(--shadow); }
.stat b { display: block; font: 800 clamp(36px, 4.4vw, 52px)/.95 var(--display); letter-spacing: -.03em; color: var(--crimson); font-variant-numeric: tabular-nums; }
@media (prefers-color-scheme: dark) { .stat b { color: var(--link); } }
.stat span { color: var(--muted); font-weight: 500; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Screenshot gallery */
.gallery {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(220px, 1fr); gap: 16px;
  overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 4px 20px; margin: 0 -4px;
  scrollbar-width: thin;
}
.gallery figure { margin: 0; scroll-snap-align: start; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); background: var(--surface); }

.gallery img { width: 100%; height: auto; aspect-ratio: 1206 / 2622; object-fit: cover; }

/* CTA */
.cta {
  position: relative; overflow: hidden; isolation: isolate;
  background: var(--night); color: #F7F2EF; border-radius: 40px; padding: 56px;
  display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center;
}
.cta::before { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; background: var(--crimson); right: -120px; top: -200px; z-index: -1; opacity: .9; }
.cta h2 { font: 800 clamp(36px, 5vw, 64px)/.95 var(--display); letter-spacing: -.03em; margin: 0 0 12px; }
.cta p { margin: 0; color: rgba(247, 242, 239, .8); font-size: 18px; }
.cta-icon { width: 120px; height: 120px; border-radius: 28px; box-shadow: 0 16px 40px rgba(0, 0, 0, .35); }
@media (max-width: 760px) { .cta { grid-template-columns: 1fr; padding: 36px 24px; } .cta-icon { width: 84px; height: 84px; border-radius: 20px; order: -1; } }

/* FAQ / support */
.support { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 32px; align-items: start; }
.support .mail {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 20px; padding: 14px 22px; border-radius: 999px;
  background: var(--crimson); color: var(--on-crimson); text-decoration: none; font: 800 17px/1 var(--display);
}
.support .mail:hover { background: var(--crimson-pressed); }
.support .mail svg { width: 18px; height: 18px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; margin-bottom: 10px; box-shadow: var(--shadow); }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 56px 18px 22px; position: relative;
  font: 700 17px/1.3 var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; border-radius: 50%; background: var(--surface2); display: grid; place-items: center;
  font: 800 20px/1 var(--display); transition: transform .2s ease;
}
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 22px 18px; color: var(--muted); }
.faq .a p { margin: 0 0 8px; }
@media (max-width: 860px) { .support { grid-template-columns: 1fr; } }

/* Footer */
.site-footer { margin-top: 88px; border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
.site-footer .wrap { display: grid; grid-template-columns: 1fr auto; gap: 16px 32px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer nav a { color: var(--ink); font-weight: 700; text-decoration: none; }
.site-footer nav a:hover { color: var(--link); }
.site-footer p { margin: 0; grid-column: 1 / -1; max-width: 70ch; }
@media (max-width: 640px) { .site-footer .wrap { grid-template-columns: 1fr; } }

/* ---------- Hero on small screens ---------- */
@media (max-width: 900px) {
  .hero-block { grid-template-columns: 1fr; padding: 40px 24px 0; border-radius: 32px; }
  .hero-copy { padding-bottom: 0; }
  .phones { min-height: 380px; max-width: 420px; width: 100%; margin: 0 auto; }
}
@media (max-width: 640px) {
  .appcard { grid-template-columns: auto 1fr; margin-top: -28px; align-items: start; }
  .appcard .badges { grid-column: 1 / -1; flex-direction: row; }
  .appcard > img { width: 64px; height: 64px; border-radius: 15px; }
  .phones { min-height: 320px; }
  .badge img { height: 48px; }
  .tile { padding: 22px; border-radius: 26px; }
  .marquee span { font-size: 20px; padding: 11px 18px; }
  section { padding-top: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .badge, .faq summary::after { transition: none; }
}

/* ---------- Legal documents ---------- */
.doc-page main { max-width: 760px; margin: 0 auto; padding: 32px 20px 64px; }
.doc h1 { font: 800 clamp(34px, 6vw, 48px)/1 var(--display); letter-spacing: -.03em; margin: 8px 0 8px; }
.doc h2 { font: 800 22px/1.15 var(--display); letter-spacing: -.01em; margin: 36px 0 8px; }
.doc h3 { font-size: 17px; margin: 20px 0 4px; }
.doc .meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 18px 22px; margin: 16px 0;
  box-shadow: var(--shadow);
}
.card.soft { background: var(--crimson-soft); border: 0; box-shadow: none; }
/* Language switch: without JS every version shows, one after the other. */
html.js [lang].doc { display: none; }
html.js.show-en [lang="en"].doc, html.js.show-pl [lang="pl"].doc,
html.js.show-uk [lang="uk"].doc, html.js.show-ru [lang="ru"].doc { display: block; }