/* THERMOKOR PageBook 0.3.0 — minden szabály tkbook névtérben marad. */
.tkbook {
  --tkbook-blue:#1B397D;
  --tkbook-blue-2:#112755;
  --tkbook-green:#4D8744;
  --tkbook-green-2:#355f31;
  --tkbook-ink:#162235;
  --tkbook-muted:#687483;
  --tkbook-paper:#fffefa;
  --tkbook-stage:#e9edf0;
  --tkbook-line:rgba(27,57,125,.12);
  --tkbook-shadow:0 34px 90px rgba(21,31,44,.22);
  position:relative;
  display:block;
  width:100%;
  max-width:1540px;
  margin:30px auto 44px;
  font-family:Poppins,Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif !important;
  color:var(--tkbook-ink) !important;
  isolation:isolate;
}

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

.tkbook [hidden] { display:none !important; }

.tkbook button,
.tkbook a,
.tkbook input { font-family:inherit !important; }

.tkbook button { appearance:none; -webkit-appearance:none; }

.tkbook__stage {
  position:relative;
  min-height:760px;
  padding:70px 92px 58px;
  overflow:hidden;
  border:1px solid rgba(27,57,125,.08);
  border-radius:28px;
  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.98), rgba(255,255,255,0) 38%),
    radial-gradient(circle at 86% 80%, rgba(77,135,68,.08), rgba(77,135,68,0) 34%),
    linear-gradient(145deg,#eef2f4 0%,#e4e9ec 100%);
  box-shadow:0 12px 34px rgba(27,57,125,.08);
}

.tkbook__stage::before {
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.26;
  background-image:linear-gradient(rgba(27,57,125,.035) 1px, transparent 1px),linear-gradient(90deg,rgba(27,57,125,.025) 1px, transparent 1px);
  background-size:34px 34px;
}

.tkbook__book-wrap {
  position:relative;
  z-index:5;
  width:min(1180px,100%);
  margin:0 auto;
  perspective:2600px;
  perspective-origin:50% 48%;
}

.tkbook__book {
  position:relative;
  width:100%;
  aspect-ratio:1.414 / 1;
  transform-style:preserve-3d;
  transform:translateX(0);
  transition:transform .52s cubic-bezier(.22,.8,.22,1);
  filter:drop-shadow(0 32px 44px rgba(25,36,52,.18));
}

.tkbook__book.is-cover { transform:translateX(-25%) scale(.97); }
.tkbook__book.is-end { transform:translateX(25%) scale(.97); }

.tkbook__base {
  position:absolute;
  top:0;
  width:50%;
  height:100%;
  background:var(--tkbook-paper);
  border:1px solid rgba(27,57,125,.10);
  box-shadow:inset 0 0 28px rgba(25,36,52,.035);
  transition:opacity .35s ease;
}

.tkbook__base--left {
  left:0;
  border-radius:16px 0 0 16px;
  box-shadow:inset -18px 0 30px rgba(25,36,52,.06);
}
.tkbook__base--right {
  right:0;
  border-radius:0 16px 16px 0;
  box-shadow:inset 18px 0 30px rgba(25,36,52,.06);
}

.tkbook__book.is-cover .tkbook__base,
.tkbook__book.is-end .tkbook__base { opacity:0; }

.tkbook__book::after {
  content:"";
  position:absolute;
  z-index:1000;
  top:1.6%;
  bottom:1.6%;
  left:50%;
  width:2px;
  transform:translateX(-1px);
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.18) 12%,rgba(255,255,255,.55) 48%,rgba(0,0,0,.16) 88%,transparent);
  box-shadow:0 0 18px rgba(0,0,0,.10);
  opacity:.58;
  pointer-events:none;
  transition:opacity .35s ease;
}

.tkbook__book.is-cover::after,
.tkbook__book.is-end::after { opacity:0; }

.tkbook__sheet {
  position:absolute;
  top:0;
  right:0;
  width:50%;
  height:100%;
  transform-origin:left center;
  transform-style:preserve-3d;
  transform:rotateY(0deg);
  will-change:transform;
}

.tkbook.is-ready .tkbook__sheet {
  transition:transform .74s cubic-bezier(.32,.04,.16,.98);
}

.tkbook.is-no-anim .tkbook__sheet { transition:none !important; }
.tkbook__sheet.is-flipped { transform:rotateY(-180deg); }

.tkbook__face {
  position:absolute;
  inset:0;
  overflow:hidden;
  background:var(--tkbook-paper);
  -webkit-backface-visibility:hidden;
  backface-visibility:hidden;
  transform-style:preserve-3d;
}

.tkbook__face--front {
  border-radius:0 16px 16px 0;
  border:1px solid rgba(27,57,125,.10);
  box-shadow:inset 20px 0 32px rgba(20,31,44,.045), inset -1px 0 rgba(255,255,255,.8);
}

.tkbook__face--back {
  transform:rotateY(180deg);
  border-radius:16px 0 0 16px;
  border:1px solid rgba(27,57,125,.10);
  box-shadow:inset -20px 0 32px rgba(20,31,44,.05), inset 1px 0 rgba(255,255,255,.8);
}

.tkbook-page {
  position:relative;
  display:block;
  width:100%;
  height:100%;
  overflow:hidden;
  background:var(--tkbook-paper);
  color:var(--tkbook-ink) !important;
}

.tkbook-page h1,
.tkbook-page h2,
.tkbook-page h3,
.tkbook-page p,
.tkbook-page ul,
.tkbook-page li { margin-top:0 !important; }

.tkbook-page h1,
.tkbook-page h2,
.tkbook-page h3 {
  font-family:Poppins,Inter,system-ui,sans-serif !important;
  text-transform:none !important;
}

.tkbook-page__number {
  position:absolute;
  z-index:15;
  right:24px;
  bottom:18px;
  font-size:10px !important;
  font-weight:800 !important;
  line-height:1 !important;
  letter-spacing:.16em !important;
  color:rgba(27,57,125,.42) !important;
}

.tkbook__face--back .tkbook-page__number { right:auto; left:24px; }

/* Cover */
.tkbook-cover,
.tkbook-back,
.tkbook-section,
.tkbook-photo { position:absolute; inset:0; overflow:hidden; }

.tkbook-cover__image,
.tkbook-back__image,
.tkbook-section__image,
.tkbook-photo__cell img {
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
}

.tkbook-cover__image { object-position:60% center; }

.tkbook-cover__veil,
.tkbook-back__veil,
.tkbook-section__veil {
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,22,44,.10),rgba(8,22,44,.18) 35%,rgba(8,22,44,.84) 100%);
}

.tkbook-cover__content {
  position:absolute;
  z-index:3;
  left:42px;
  right:42px;
  bottom:46px;
  color:#fff !important;
}

.tkbook-brand {
  display:inline-flex;
  align-items:flex-start;
  gap:1px;
  font-size:22px !important;
  line-height:1 !important;
  font-weight:900 !important;
  letter-spacing:.01em !important;
  color:#fff !important;
}
.tkbook-brand sup { font-size:.42em !important; top:-.35em; position:relative; }

.tkbook-cover__eyebrow {
  margin:34px 0 10px !important;
  color:rgba(255,255,255,.82) !important;
  font-size:10px !important;
  line-height:1.3 !important;
  font-weight:800 !important;
  letter-spacing:.18em !important;
  text-transform:uppercase !important;
}

.tkbook-cover h1 {
  margin:0 0 16px !important;
  max-width:470px;
  color:#fff !important;
  font-size:clamp(34px,3.2vw,50px) !important;
  line-height:1.02 !important;
  font-weight:850 !important;
  letter-spacing:-.04em !important;
}

.tkbook-cover__lead {
  max-width:460px;
  margin:0 !important;
  color:rgba(255,255,255,.92) !important;
  font-size:14px !important;
  line-height:1.65 !important;
  font-weight:500 !important;
}

.tkbook-cover__chips {
  display:flex;
  flex-wrap:wrap;
  gap:7px;
  margin-top:20px;
}
.tkbook-cover__chips span {
  display:inline-flex;
  padding:7px 10px;
  border:1px solid rgba(255,255,255,.34);
  border-radius:999px;
  background:rgba(255,255,255,.10);
  backdrop-filter:blur(6px);
  color:#fff !important;
  font-size:9px !important;
  line-height:1 !important;
  font-weight:750 !important;
}

/* Text/editorial */
.tkbook-copy,
.tkbook-contents,
.tkbook-references,
.tkbook-contact {
  height:100%;
  padding:54px 46px 48px;
  display:flex;
  flex-direction:column;
}

.tkbook-copy::before,
.tkbook-contents::before,
.tkbook-references::before,
.tkbook-contact::before {
  content:"";
  display:block;
  width:44px;
  height:4px;
  margin-bottom:26px;
  border-radius:999px;
  background:var(--tkbook-green);
}

.tkbook-copy__eyebrow {
  margin:0 0 9px !important;
  color:var(--tkbook-green) !important;
  font-size:9px !important;
  line-height:1.3 !important;
  font-weight:850 !important;
  letter-spacing:.16em !important;
  text-transform:uppercase !important;
}

.tkbook-copy h2,
.tkbook-contents h2,
.tkbook-references h2,
.tkbook-contact h2 {
  margin:0 0 18px !important;
  color:var(--tkbook-blue) !important;
  font-size:clamp(29px,2.35vw,40px) !important;
  line-height:1.05 !important;
  font-weight:850 !important;
  letter-spacing:-.035em !important;
}

.tkbook-copy__lead,
.tkbook-references .tkbook-copy__lead {
  margin:0 0 17px !important;
  color:#34435a !important;
  font-size:14px !important;
  line-height:1.58 !important;
  font-weight:650 !important;
}

.tkbook-copy__body {
  margin:0 0 20px !important;
  color:var(--tkbook-muted) !important;
  font-size:12px !important;
  line-height:1.72 !important;
  font-weight:500 !important;
}

.tkbook-stats {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;
  margin:8px 0 18px;
}
.tkbook-stats div {
  min-height:84px;
  padding:14px 10px;
  border-top:1px solid var(--tkbook-line);
  border-bottom:1px solid var(--tkbook-line);
}
.tkbook-stats strong {
  display:block;
  margin-bottom:7px;
  color:var(--tkbook-blue) !important;
  font-size:20px !important;
  line-height:1 !important;
  font-weight:850 !important;
}
.tkbook-stats span {
  display:block;
  color:var(--tkbook-muted) !important;
  font-size:9px !important;
  line-height:1.4 !important;
  font-weight:650 !important;
}

.tkbook-features {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 18px;
  margin:4px 0 18px !important;
  padding:0 !important;
  list-style:none !important;
}
.tkbook-features li {
  position:relative;
  margin:0 !important;
  padding:10px 0 10px 14px !important;
  border-bottom:1px solid rgba(27,57,125,.10);
  color:#354257 !important;
  font-size:10px !important;
  line-height:1.45 !important;
  font-weight:700 !important;
}
.tkbook-features li::before {
  content:"";
  position:absolute;
  left:0;
  top:15px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--tkbook-green);
}

.tkbook-copy__link {
  margin-top:auto;
  align-self:flex-start;
  color:var(--tkbook-blue) !important;
  font-size:10px !important;
  line-height:1.3 !important;
  font-weight:800 !important;
  letter-spacing:.01em !important;
  text-decoration:none !important;
  border-bottom:1px solid rgba(27,57,125,.22);
  padding-bottom:3px;
}
.tkbook-copy__link:hover { color:var(--tkbook-green) !important; border-color:var(--tkbook-green); }

.tkbook-products {
  display:grid;
  gap:8px;
  margin:0 0 14px;
}
.tkbook-products > div {
  padding:13px 0 12px;
  border-top:1px solid var(--tkbook-line);
}
.tkbook-products > div:last-child { border-bottom:1px solid var(--tkbook-line); }
.tkbook-products span {
  display:block;
  margin-bottom:4px;
  color:var(--tkbook-green) !important;
  font-size:8px !important;
  line-height:1 !important;
  font-weight:850 !important;
  letter-spacing:.13em !important;
}
.tkbook-products strong {
  display:block;
  color:var(--tkbook-blue) !important;
  font-size:12px !important;
  line-height:1.35 !important;
  font-weight:800 !important;
}
.tkbook-products p {
  margin:4px 0 0 !important;
  color:var(--tkbook-muted) !important;
  font-size:9px !important;
  line-height:1.5 !important;
  font-weight:500 !important;
}

/* Photo pages */
.tkbook-photo { background:#dfe5e6; }
.tkbook-photo__cell { position:absolute; inset:0; margin:0 !important; overflow:hidden; }
.tkbook-photo__cell img { transform:scale(1.002); }
.tkbook-photo--collage { display:grid; grid-template-columns:1fr 1fr; gap:4px; padding:4px; background:#fff; }
.tkbook-photo--collage .tkbook-photo__cell { position:relative; inset:auto; height:100%; }
.tkbook-photo--collage .tkbook-photo__cell img { object-position:center; }
.tkbook-photo--collage-3 { grid-template-columns:1.15fr .85fr; grid-template-rows:1fr 1fr; }
.tkbook-photo--collage-3 .tkbook-photo__cell:first-child { grid-row:1 / span 2; }
.tkbook-photo__fallback {
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,var(--tkbook-blue),#6b8798);
}
.tkbook-photo__caption {
  position:absolute;
  z-index:3;
  left:24px;
  right:24px;
  bottom:25px;
  padding:14px 16px;
  background:rgba(17,39,85,.84);
  backdrop-filter:blur(7px);
  border:1px solid rgba(255,255,255,.22);
  border-radius:10px;
  color:#fff !important;
}
.tkbook-photo__caption span {
  display:block;
  margin-bottom:4px;
  font-size:8px !important;
  line-height:1 !important;
  font-weight:800 !important;
  letter-spacing:.14em !important;
  color:rgba(255,255,255,.72) !important;
}
.tkbook-photo__caption strong {
  display:block;
  font-size:12px !important;
  line-height:1.35 !important;
  font-weight:750 !important;
  color:#fff !important;
}
.tkbook-page--photo .tkbook-page__number,
.tkbook-page--cover .tkbook-page__number,
.tkbook-page--section .tkbook-page__number,
.tkbook-page--back .tkbook-page__number { color:rgba(255,255,255,.66) !important; text-shadow:0 1px 10px rgba(0,0,0,.25); }

/* Section */
.tkbook-section__veil { background:linear-gradient(180deg,rgba(17,39,85,.10),rgba(17,39,85,.28) 44%,rgba(17,39,85,.92) 100%); }
.tkbook-section__content {
  position:absolute;
  z-index:3;
  left:38px;
  right:34px;
  bottom:42px;
  color:#fff !important;
}
.tkbook-section__no {
  display:block;
  margin-bottom:24px;
  color:rgba(255,255,255,.30) !important;
  font-size:78px !important;
  line-height:.8 !important;
  font-weight:900 !important;
  letter-spacing:-.06em !important;
}
.tkbook-section__content p {
  margin:0 0 8px !important;
  color:rgba(255,255,255,.76) !important;
  font-size:9px !important;
  line-height:1.2 !important;
  font-weight:850 !important;
  letter-spacing:.16em !important;
}
.tkbook-section__content h2 {
  margin:0 0 14px !important;
  color:#fff !important;
  font-size:clamp(31px,2.6vw,44px) !important;
  line-height:1.02 !important;
  font-weight:850 !important;
  letter-spacing:-.04em !important;
}
.tkbook-section__content strong {
  display:block;
  max-width:440px;
  color:rgba(255,255,255,.88) !important;
  font-size:12px !important;
  line-height:1.55 !important;
  font-weight:600 !important;
}

/* Contents */
.tkbook-contents__list { display:grid; gap:0; margin-top:8px; }
.tkbook-contents__list button {
  display:grid !important;
  grid-template-columns:34px 1fr 20px;
  gap:10px;
  align-items:center;
  width:100%;
  margin:0 !important;
  padding:14px 0 !important;
  border:0 !important;
  border-bottom:1px solid var(--tkbook-line) !important;
  border-radius:0 !important;
  background:transparent !important;
  box-shadow:none !important;
  color:var(--tkbook-ink) !important;
  text-align:left;
  cursor:pointer;
}
.tkbook-contents__list button > span {
  color:var(--tkbook-green) !important;
  font-size:9px !important;
  font-weight:850 !important;
  letter-spacing:.1em !important;
}
.tkbook-contents__list button strong {
  color:var(--tkbook-blue) !important;
  font-size:12px !important;
  line-height:1.35 !important;
  font-weight:780 !important;
}
.tkbook-contents__list button i {
  color:rgba(27,57,125,.45) !important;
  font-size:16px !important;
  font-style:normal !important;
  transition:transform .2s ease;
}
.tkbook-contents__list button:hover i { transform:translateX(3px); }

/* References */
.tkbook-references__grid { display:grid; gap:10px; margin:4px 0 14px; }
.tkbook-references__grid > div { padding:12px 0; border-top:1px solid var(--tkbook-line); }
.tkbook-references__grid > div:last-child { border-bottom:1px solid var(--tkbook-line); }
.tkbook-references__grid span {
  display:block;
  margin-bottom:6px;
  color:var(--tkbook-green) !important;
  font-size:8px !important;
  line-height:1 !important;
  font-weight:850 !important;
  letter-spacing:.12em !important;
  text-transform:uppercase;
}
.tkbook-references__grid strong {
  display:inline;
  color:#354257 !important;
  font-size:9px !important;
  line-height:1.65 !important;
  font-weight:700 !important;
}
.tkbook-references__grid strong + strong::before { content:" · "; color:rgba(27,57,125,.30); }

/* Contact */
.tkbook-contact { background:linear-gradient(160deg,#fff 0%,#f5f8f5 100%); }
.tkbook-contact > p:not(.tkbook-copy__eyebrow) {
  margin:0 0 26px !important;
  color:var(--tkbook-muted) !important;
  font-size:13px !important;
  line-height:1.65 !important;
  font-weight:550 !important;
}
.tkbook-contact__items { display:grid; gap:0; margin-top:8px; }
.tkbook-contact__items a,
.tkbook-contact__items > div {
  display:block;
  padding:14px 0;
  border-top:1px solid var(--tkbook-line);
  color:inherit !important;
  text-decoration:none !important;
}
.tkbook-contact__items > *:last-child { border-bottom:1px solid var(--tkbook-line); }
.tkbook-contact__items span { display:block; color:var(--tkbook-green) !important; font-size:8px !important; font-weight:850 !important; letter-spacing:.12em !important; text-transform:uppercase; }
.tkbook-contact__items strong { display:block; margin-top:4px; color:var(--tkbook-blue) !important; font-size:14px !important; line-height:1.35 !important; font-weight:800 !important; }
.tkbook-contact__cta {
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin-top:auto;
  padding:13px 16px;
  border-radius:8px;
  background:var(--tkbook-blue) !important;
  color:#fff !important;
  text-decoration:none !important;
  font-size:10px !important;
  line-height:1.2 !important;
  font-weight:800 !important;
}
.tkbook-contact__cta:hover { background:var(--tkbook-green) !important; color:#fff !important; }

/* Back */
.tkbook-back__veil { background:linear-gradient(180deg,rgba(17,39,85,.20),rgba(17,39,85,.88)); }
.tkbook-back__content {
  position:absolute;
  z-index:3;
  inset:auto 38px 42px;
  color:#fff !important;
}
.tkbook-back__content > strong {
  display:block;
  margin:26px 0 18px;
  max-width:410px;
  color:#fff !important;
  font-size:24px !important;
  line-height:1.14 !important;
  font-weight:820 !important;
}
.tkbook-back__content > a { color:#fff !important; font-size:11px !important; font-weight:750 !important; text-decoration:none !important; border-bottom:1px solid rgba(255,255,255,.35); }

/* Controls — intentionally minimal */
.tkbook__utilities {
  position:absolute;
  z-index:40;
  top:18px;
  right:22px;
  display:flex;
  gap:6px;
}
.tkbook__utility {
  display:inline-flex !important;
  align-items:center;
  gap:7px;
  min-height:34px;
  margin:0 !important;
  padding:8px 11px !important;
  border:1px solid rgba(27,57,125,.12) !important;
  border-radius:999px !important;
  background:rgba(255,255,255,.78) !important;
  box-shadow:0 6px 20px rgba(25,36,52,.08) !important;
  backdrop-filter:blur(8px);
  color:var(--tkbook-blue) !important;
  font-size:9px !important;
  line-height:1 !important;
  font-weight:800 !important;
  cursor:pointer;
}
.tkbook__utility:hover { background:#fff !important; color:var(--tkbook-green) !important; }
.tkbook__utility-icon { font-size:13px !important; line-height:1 !important; }

.tkbook__edge {
  position:absolute;
  z-index:35;
  top:50%;
  width:48px;
  height:72px;
  margin:0 !important;
  padding:0 !important;
  transform:translateY(-50%);
  border:0 !important;
  border-radius:999px !important;
  background:rgba(255,255,255,.68) !important;
  box-shadow:0 10px 30px rgba(25,36,52,.10) !important;
  backdrop-filter:blur(8px);
  color:var(--tkbook-blue) !important;
  cursor:pointer;
  transition:opacity .2s ease, transform .2s ease, background .2s ease !important;
}
.tkbook__edge--prev { left:22px; }
.tkbook__edge--next { right:22px; }
.tkbook__edge span { display:block; font-size:38px !important; line-height:.8 !important; font-weight:300 !important; transform:translateY(-1px); }
.tkbook__edge:hover { background:#fff !important; transform:translateY(-50%) scale(1.04); }
.tkbook__edge:disabled { opacity:.18; cursor:default; transform:translateY(-50%); }

.tkbook__folio {
  position:absolute;
  z-index:35;
  left:50%;
  bottom:18px;
  transform:translateX(-50%);
  display:flex;
  align-items:center;
  gap:12px;
  color:rgba(27,57,125,.72) !important;
}
.tkbook__folio > span:first-child { min-width:76px; font-size:9px !important; line-height:1 !important; font-weight:850 !important; letter-spacing:.12em !important; text-align:right; }
.tkbook__folio-line { position:relative; display:block; width:92px; height:2px; overflow:hidden; background:rgba(27,57,125,.14); border-radius:999px; }
.tkbook__folio-line i { position:absolute; inset:0 auto 0 0; width:0; background:var(--tkbook-green); transition:width .28s ease; }
.tkbook__hint {
  position:absolute;
  z-index:20;
  left:22px;
  bottom:21px;
  color:rgba(27,57,125,.40) !important;
  font-size:8px !important;
  line-height:1 !important;
  font-weight:700 !important;
  letter-spacing:.06em !important;
}

/* TOC overlay */
.tkbook__toc {
  position:absolute;
  z-index:120;
  inset:0;
  display:flex;
  justify-content:flex-end;
  background:rgba(17,28,44,.34);
  backdrop-filter:blur(5px);
  border-radius:28px;
  overflow:hidden;
}
.tkbook__toc-panel {
  width:min(420px,92%);
  height:100%;
  overflow:auto;
  background:rgba(255,255,255,.98);
  box-shadow:-22px 0 60px rgba(20,31,44,.16);
}
.tkbook__toc-head {
  position:sticky;
  z-index:3;
  top:0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:24px 24px 18px;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--tkbook-line);
}
.tkbook__toc-head span { display:block; margin-bottom:4px; color:var(--tkbook-green) !important; font-size:8px !important; line-height:1 !important; font-weight:850 !important; letter-spacing:.14em !important; }
.tkbook__toc-head strong { display:block; color:var(--tkbook-blue) !important; font-size:19px !important; line-height:1.1 !important; font-weight:850 !important; }
.tkbook__toc-close {
  width:38px;
  height:38px;
  padding:0 !important;
  margin:0 !important;
  border:1px solid var(--tkbook-line) !important;
  border-radius:50% !important;
  background:#fff !important;
  color:var(--tkbook-blue) !important;
  box-shadow:none !important;
  font-size:24px !important;
  line-height:1 !important;
  font-weight:300 !important;
  cursor:pointer;
}
.tkbook__toc-list { padding:6px 16px 24px; }
.tkbook__toc-list button {
  display:grid !important;
  grid-template-columns:38px 1fr;
  gap:10px;
  align-items:center;
  width:100%;
  margin:0 !important;
  padding:12px 8px !important;
  border:0 !important;
  border-bottom:1px solid rgba(27,57,125,.08) !important;
  border-radius:0 !important;
  background:transparent !important;
  box-shadow:none !important;
  text-align:left;
  cursor:pointer;
}
.tkbook__toc-list button span:first-child { color:var(--tkbook-green) !important; font-size:8px !important; font-weight:850 !important; letter-spacing:.10em !important; }
.tkbook__toc-list button span:last-child { color:#334158 !important; font-size:10px !important; line-height:1.4 !important; font-weight:700 !important; }
.tkbook__toc-list button:hover span:last-child { color:var(--tkbook-blue) !important; }

/* Fullscreen */
.tkbook:fullscreen { width:100vw; height:100vh; max-width:none; margin:0; background:var(--tkbook-stage); }
.tkbook:fullscreen .tkbook__stage { width:100%; height:100%; min-height:100%; border:0; border-radius:0; display:flex; align-items:center; justify-content:center; padding-top:68px; padding-bottom:58px; }
.tkbook:fullscreen .tkbook__book-wrap { width:min(1260px,calc(100vw - 190px)); }
.tkbook:fullscreen .tkbook__toc { position:fixed; border-radius:0; }

/* Mobile: same semantic pages, single-page presentation */
@media (max-width:860px) {
  .tkbook { margin:18px auto 28px; }
  .tkbook__stage { min-height:0; padding:58px 12px 58px; border-radius:18px; }
  .tkbook__book-wrap { width:min(560px,100%); perspective:none; }
  .tkbook__book,
  .tkbook__book.is-cover,
  .tkbook__book.is-end { aspect-ratio:.707 / 1; transform:none !important; filter:drop-shadow(0 20px 32px rgba(25,36,52,.17)); }
  .tkbook__book::after,
  .tkbook__base { display:none !important; }
  .tkbook__sheet,
  .tkbook__sheet.is-flipped {
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    transform:none !important;
    transition:none !important;
    pointer-events:none;
  }
  .tkbook__face,
  .tkbook__face--front,
  .tkbook__face--back {
    position:absolute;
    inset:0;
    border-radius:14px;
    transform:translateX(18px) !important;
    backface-visibility:visible;
    -webkit-backface-visibility:visible;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition:opacity .24s ease, transform .32s cubic-bezier(.22,.8,.22,1) !important;
  }
  .tkbook__face.is-mobile-active {
    z-index:10 !important;
    opacity:1;
    visibility:visible;
    transform:translateX(0) !important;
    pointer-events:auto;
  }
  .tkbook-copy,
  .tkbook-contents,
  .tkbook-references,
  .tkbook-contact { padding:42px 32px 38px; }
  .tkbook-copy h2,
  .tkbook-contents h2,
  .tkbook-references h2,
  .tkbook-contact h2 { font-size:clamp(28px,7vw,38px) !important; }
  .tkbook-copy__lead { font-size:13px !important; }
  .tkbook-copy__body { font-size:11px !important; }
  .tkbook-section__no { font-size:66px !important; }
  .tkbook-section__content h2 { font-size:clamp(29px,7vw,40px) !important; }
  .tkbook-cover h1 { font-size:clamp(34px,8.4vw,48px) !important; }
  .tkbook__edge { top:auto; bottom:12px; width:42px; height:42px; transform:none; box-shadow:none !important; }
  .tkbook__edge--prev { left:12px; }
  .tkbook__edge--next { right:12px; }
  .tkbook__edge:hover { transform:none; }
  .tkbook__edge:disabled { transform:none; }
  .tkbook__edge span { font-size:31px !important; }
  .tkbook__folio { bottom:24px; }
  .tkbook__hint { display:none; }
  .tkbook__utilities { top:12px; right:12px; }
  .tkbook__utility { min-height:32px; padding:7px 9px !important; }
  .tkbook__utility > span:last-child { display:none; }
  .tkbook__toc { border-radius:18px; }
  .tkbook-photo__caption { left:18px; right:18px; bottom:20px; }
  .tkbook-page__number { right:18px; bottom:15px; }
  .tkbook__face--back .tkbook-page__number { left:18px; }
}

@media (max-width:520px) {
  .tkbook__stage { padding-left:8px; padding-right:8px; }
  .tkbook-copy,
  .tkbook-contents,
  .tkbook-references,
  .tkbook-contact { padding:34px 24px 34px; }
  .tkbook-copy::before,
  .tkbook-contents::before,
  .tkbook-references::before,
  .tkbook-contact::before { margin-bottom:20px; }
  .tkbook-copy h2,
  .tkbook-contents h2,
  .tkbook-references h2,
  .tkbook-contact h2 { margin-bottom:14px !important; }
  .tkbook-stats { grid-template-columns:1fr; gap:0; }
  .tkbook-stats div { min-height:auto; display:grid; grid-template-columns:90px 1fr; align-items:center; border-bottom:0; }
  .tkbook-features { grid-template-columns:1fr; }
  .tkbook-products > div { padding:10px 0; }
  .tkbook-photo--collage { grid-template-columns:1fr; grid-template-rows:1fr 1fr; }
  .tkbook-photo--collage-3 { grid-template-columns:1.1fr .9fr; grid-template-rows:1fr 1fr; }
  .tkbook-photo--collage-3 .tkbook-photo__cell:first-child { grid-row:1 / span 2; }
  .tkbook-cover__content { left:28px; right:28px; bottom:34px; }
  .tkbook-cover__chips span:nth-child(n+3) { display:none; }
  .tkbook-section__content { left:28px; right:26px; bottom:32px; }
}

@media (prefers-reduced-motion:reduce) {
  .tkbook *, .tkbook *::before, .tkbook *::after { scroll-behavior:auto !important; transition:none !important; animation:none !important; }
}

/* Print / PDF: flatten every HTML page, no canvas. */
@media print {
  .tkbook { max-width:none; margin:0; }
  .tkbook__stage { min-height:0; padding:0; border:0; border-radius:0; background:#fff; box-shadow:none; overflow:visible; }
  .tkbook__utilities,
  .tkbook__edge,
  .tkbook__folio,
  .tkbook__hint,
  .tkbook__toc,
  .tkbook__base,
  .tkbook__book::after { display:none !important; }
  .tkbook__book-wrap,
  .tkbook__book { width:auto; aspect-ratio:auto; transform:none !important; filter:none; perspective:none; }
  .tkbook__sheet,
  .tkbook__sheet.is-flipped { position:static; width:auto; height:auto; transform:none !important; }
  .tkbook__face,
  .tkbook__face--front,
  .tkbook__face--back { position:static; width:100%; height:auto; min-height:270mm; transform:none !important; opacity:1 !important; visibility:visible !important; border:0; border-radius:0; box-shadow:none; break-after:page; page-break-after:always; }
  .tkbook-page { min-height:270mm; }
}