:root {
  color-scheme: light;
  --bg: #f6f4f0;
  --band: #eceef7;
  --ink: #191a26;
  --muted: #575768;
  --blue: #30358c;
  --line: #d9d9e1;
  --accent: #e6007e;
  --body: Inter, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body { margin: 0; color: var(--ink); background: var(--bg); font: 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, figure { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 4px; }
button { font: inherit; cursor: pointer; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
h2 { font-size: clamp(29px, 3.4vw, 43px); line-height: 1.17; letter-spacing: -.035em; text-wrap: balance; }
h3 { font-size: 19px; line-height: 1.35; letter-spacing: -.015em; }
p { max-width: 68ch; }
strong { font-weight: 700; }
.wrap { max-width: 1140px; padding-inline: max(24px, env(safe-area-inset-left)); margin-inline: auto; }
section { padding-block: 80px; scroll-margin-top: 74px; }
.band { background: var(--band); }
.head { display: grid; gap: 16px; max-width: 760px; }
.head.c { text-align: center; margin-inline: auto; justify-items: center; }
.lead { color: var(--muted); font-size: 19px; line-height: 1.65; }
.eyebrow { color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 56px; padding: 14px 28px; border: 0; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 700; line-height: 1.4; text-align: center; text-decoration: none; box-shadow: 0 8px 22px #c6006b1c; transition: background .15s; }
.btn:hover { background: #bd0067; }
.btn.small { min-height: 42px; padding: 10px 20px; font-size: 14px; box-shadow: none; }
.textlink { display: inline-block; padding-block: 10px; font-weight: 700; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.skip-link { position: fixed; z-index: 100; top: -100px; left: 16px; padding: 10px; background: #fff; }
.skip-link:focus { top: 10px; }
.top { position: sticky; z-index: 10; top: 0; background: #f6f4f0f5; border-bottom: 1px solid #e7e5df; }
.top .wrap { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-block: 12px; }
.site-logo { width: 174px; filter: brightness(0); }
.hero { padding-block: 66px 70px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: center; }
.hero-copy { position: relative; z-index: 1; display: grid; gap: 24px; }
.hero h1 { font: 400 clamp(54px, 6.5vw, 82px)/1.12 Anton, Impact, sans-serif; text-transform: uppercase; letter-spacing: -.01em; }
.hero h1 em { font: italic 1.14em/1.1 'Instrument Serif', Georgia, serif; text-transform: none; color: var(--blue); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 24px; }
.purchase-note { color: var(--muted); font-size: 13px; }
.hero-copy .purchase-note { margin-top: -12px; }
.hero-book { width: calc(100% + 100px); margin-left: -50px; }
.hero-book figcaption { margin: 8px 50px 0; color: var(--muted); font-size: 13px; text-align: center; }
.skills { display: grid; grid-template-columns: 1fr 1fr; gap: 0 50px; list-style: none; padding: 0; margin: 28px 0 0; }
.skills li { display: flex; gap: 18px; padding-block: 25px; border-bottom: 1px solid #cdd1e3; break-inside: avoid; }
.skill-number { padding-top: 3px; color: var(--blue); font-size: 13px; font-variant-numeric: tabular-nums; }
.skills h3 { margin-bottom: 7px; font-size: 18px; }
.skills p { color: var(--muted); font-size: 15px; }
.skills-preview { margin-top: 0; max-height: 132px; overflow: hidden; pointer-events: none; user-select: none; -webkit-mask-image: linear-gradient(to bottom, rgb(0 0 0 / 65%), transparent 95%); mask-image: linear-gradient(to bottom, rgb(0 0 0 / 65%), transparent 95%); }
.skills-book-note { max-width: none; margin-top: 8px; text-align: center; font-size: 17px; font-weight: 600; }
.peek { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 36px; margin-top: 40px; align-items: start; }
.pages { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: start; }
.pg { display: block; width: 100%; border: 1px solid var(--line); padding: 0; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 5px 16px #191a2610; cursor: zoom-in; }
.pg img { width: 100%; }
.pg-qr { aspect-ratio: 1200 / 1703; }
.pg-qr img { height: 100%; object-fit: contain; background: #fff; }
.pages figcaption { margin-top: 14px; color: var(--muted); font-size: 13px; line-height: 1.55; }
.pages figcaption b { display: block; margin-bottom: 6px; color: var(--ink); font-size: 14px; }
.pages figcaption small { display: block; margin-top: 7px; }
.myth { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.mm { color: var(--muted); font-size: 14px; margin-top: 7px; }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding-block: 18px; cursor: pointer; font-size: 15px; font-weight: 600; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; flex: none; color: var(--accent); font-size: 20px; font-weight: 400; }
details[open] > summary::after { content: '−'; }
details > p { padding-bottom: 20px; color: var(--muted); font-size: 14px; }
.no, .yes { color: var(--ink); }
.peek-cta { text-align: center; margin-top: 28px; }
#recenze { padding-top: 56px; border-top: 1px solid var(--line); }
.rating { color: var(--muted); font-size: 16px; }
.reviews { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 30px; }
.review, .quote-card { padding: 26px; border: 1px solid var(--line); border-radius: 16px; background: #fff; display: flex; flex-direction: column; gap: 20px; }
.q { font-size: 18px; line-height: 1.6; }
.src { margin-top: auto; color: var(--muted); font-size: 13px; }
.quote-card { background: #303b70; color: #fff; border-color: transparent; }
.quote-card .src { color: #e0e5f6; }
.review-sources { margin-top: 16px; border: 0; }
.review-sources summary { justify-content: flex-start; gap: 12px; padding-block: 8px; font-size: 13px; }
.review-sources p { font-size: 13px; }
#kuba { background: #eeede8; }
.author { display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: 50px; }
.author .txt { display: grid; gap: 18px; }
.author .txt > p:not(.lead) { font-size: 15px; color: var(--muted); }
.author-photo { border-radius: 18px; overflow: hidden; border: 1px solid var(--line); }
.author-photo img { width: 100%; aspect-ratio: 1.4; object-fit: cover; }
.purchase-section { background: var(--band); }
.purchase-wrap { display: flex; gap: 48px; align-items: center; justify-content: space-between; }
.purchase-action { display: grid; gap: 16px; flex: none; max-width: 100%; }
.price { font-weight: 700; font-size: 46px; letter-spacing: -.04em; line-height: 1.2; }
.price span { font-weight: 400; font-size: 15px; letter-spacing: 0; color: var(--muted); }
.faq-section { background: #efeee9; border-top: 1px solid #dddcd5; }
.faq-section h2 { font-size: 30px; }
.faq { max-width: 720px; margin: 28px auto 0; border-top: 1px solid var(--line); }
.faq summary { font-size: 16px; }
.faq p { font-size: 15px; }
footer { padding-block: 32px; background: #efeee9; color: var(--muted); border-top: 1px solid #dddcd5; font-size: 13px; }
footer .wrap { display: flex; align-items: start; justify-content: space-between; gap: 32px; }
footer nav { display: flex; flex-wrap: wrap; gap: 12px 22px; }
footer p { margin-top: 8px; }
footer a { display: inline-block; padding-block: 5px; }
#pgview { border: 0; padding: 0; background: transparent; max-width: min(92vw, 650px); max-height: 94dvh; overflow: visible; }
#pgview::backdrop { background: #111222dc; }
#pgview img { max-height: 90dvh; max-width: 100%; width: auto; border-radius: 3px; }
.pgx { position: absolute; right: 8px; top: 8px; width: 44px; height: 44px; border: 1px solid #ccc; border-radius: 50%; background: #fff; color: #111; font-size: 28px; box-shadow: 0 3px 16px #0002; }
@media (max-width: 900px) {
  .hero h1 { font-size: 60px; }
  .hero .lead { font-size: 17px; }
  .hero-book { width: calc(100% + 40px); margin-left: -20px; }
  .hero-book figcaption { margin-inline: 20px; }
  .peek { grid-template-columns: 1fr; }
  .reviews { gap: 12px; }
  .review, .quote-card { padding: 20px; }
  .author { gap: 28px; }
  .skills { column-gap: 32px; }
  .purchase-wrap { gap: 32px; }
  .purchase-wrap .head { max-width: 400px; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .wrap { padding-inline: 20px; }
  section { padding-block: 52px; scroll-margin-top: 66px; }
  .top .wrap { padding-block: 10px; gap: 14px; }
  .site-logo { width: 136px; }
  .btn.small { font-size: 13px; padding-inline: 16px; min-height: 40px; }
  .hero { padding-block: 36px 38px; }
  .hero-grid { grid-template-columns: 1fr; gap: 22px; }
  .hero-copy { gap: 20px; }
  .hero h1 { font-size: clamp(48px, 11.8vw, 72px); }
  .hero .lead { font-size: 17px; }
  .hero-actions { gap: 4px; }
  .hero-actions .btn { width: 100%; }
  .hero-actions .textlink { margin-inline: auto; }
  .hero-copy .purchase-note { margin-top: -16px; text-align: center; }
  .hero-book { width: calc(100% + 40px); margin-left: -20px; }
  .hero-book figcaption { margin: 0 20px; font-size: 12px; }
  h2 { font-size: 30px; }
  .lead { font-size: 17px; }
  .skills { grid-template-columns: 1fr; margin-top: 20px; }
  .skills li { gap: 16px; padding-block: 22px; }
  .skills h3 { font-size: 17px; }
  .skills-preview { margin-top: 0; max-height: none; -webkit-mask-image: none; mask-image: none; }
  .skills-preview li { height: 70px; padding-block: 14px; overflow: hidden; border-bottom: 0; -webkit-mask-image: linear-gradient(to bottom, rgb(0 0 0 / 55%), transparent); mask-image: linear-gradient(to bottom, rgb(0 0 0 / 55%), transparent); }
  .skills-book-note { font-size: 16px; }
  .pages { gap: 10px; }
  .pages figcaption, .pages figcaption b { font-size: 12px; }
  .peek { gap: 25px; margin-top: 28px; }
  .myth { padding: 18px; }
  .reviews { grid-template-columns: 1fr; }
  .review, .quote-card { padding: 22px; gap: 15px; }
  .q { font-size: 17px; }
  .author { grid-template-columns: 1fr; gap: 26px; }
  .author-photo { max-width: 460px; }
  .purchase-wrap { display: grid; gap: 28px; }
  .purchase-action { gap: 14px; }
  .purchase-action .btn { width: 100%; }
  .faq-section h2 { font-size: 28px; }
  .faq summary { font-size: 15px; }
  footer .wrap { display: grid; gap: 20px; }
}
@media print, (forced-colors: active) { .skills-preview { display: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }