@font-face {
  font-family: 'Geist';
  font-style: normal;
  font-weight: 300 900;
  font-display: swap;
  src: url(/book-detail/9b6f5ff45b278c74.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Geist Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/book-detail/5f3d6ad60f29d6cb.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Geist Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(/book-detail/5f3d6ad60f29d6cb.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(/book-detail/6ee678c33f388dd7.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/book-detail/60c06664b5a95c7d.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}


/* =========================================================
   ALLIANCE BUILDER — gedeelde basis (identiek op alle subpagina's)
   Zelfde designsysteem als de homepage: paper / ink / slate / sky,
   Geist + Instrument Serif + Geist Mono.
   ========================================================= */
:root {
  --paper: #F5F4F0;
  --paper-2: #ECEBE5;
  --white: #FFFFFF;
  --ink: #0D0E0F;
  --ink-2: #17191B;
  --ink-3: #222528;
  --muted: #5E6468;
  --muted-dark: rgba(245, 244, 240, .64);
  --faint-dark: rgba(245, 244, 240, .4);
  --line: rgba(13, 14, 15, .1);
  --line-dark: rgba(245, 244, 240, .13);
  --slate: #42697C;
  --sky: #B2D5E5;
  --sky-2: #D9EBF3;
  --glow: #8EC5DF;
  --error: #B4413A;

  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --ease-io: cubic-bezier(.65, 0, .35, 1);
  --container: 1340px;
  --gutter: clamp(16px, 4vw, 48px);
  --radius: 26px;
  --section: clamp(96px, 12vw, 170px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 17px; line-height: 1.55;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}
body::after { /* film grain */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 200; opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
svg { display: block; }
::selection { background: var(--sky); color: var(--ink); }
:focus-visible { outline: 2px solid var(--slate); outline-offset: 3px; border-radius: 6px; }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.mono { font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; font-weight: 500; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; left: 16px; top: -60px; z-index: 300; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 10px; }
.skip:focus { top: 16px; }
.placeholder { outline: 1.5px dashed rgba(66, 105, 124, .45); outline-offset: 4px; border-radius: 6px; }

/* ---------- Typografie ---------- */
.label {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--mono); font-size: 11.5px; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.label::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--slate); box-shadow: 0 0 0 4px rgba(66, 105, 124, .14); }
.on-dark .label { color: var(--muted-dark); }
.on-dark .label::before { background: var(--sky); box-shadow: 0 0 0 4px rgba(178, 213, 229, .14); }

.display {
  font-size: clamp(50px, 8vw, 128px); line-height: .93; letter-spacing: -.055em; font-weight: 500;
  text-wrap: balance;
}
.h2 { font-size: clamp(38px, 5.2vw, 80px); line-height: .98; letter-spacing: -.045em; font-weight: 500; text-wrap: balance; }
.display em, .h2 em, .h3 em {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  letter-spacing: -.02em; color: var(--slate); font-size: 1.08em; line-height: .9;
}
.on-dark .display em, .on-dark .h2 em { color: var(--sky); }
.lead { font-size: clamp(17px, 1.45vw, 20px); line-height: 1.55; color: var(--muted); max-width: 560px; }
.on-dark .lead { color: var(--muted-dark); }
.split-line { padding-bottom: .07em; margin-bottom: -.07em; }

.sec { padding-top: var(--section); }
.sec-head { display: grid; grid-template-columns: 1.5fr 1fr; gap: 28px 64px; align-items: end; margin-bottom: clamp(44px, 6vw, 80px); }
.sec-head .label { grid-column: 1 / -1; }
.sec-head__lead { color: var(--muted); font-size: 18px; max-width: 420px; justify-self: end; }

/* ---------- Knoppen & links ---------- */
.btn {
  --h: 58px;
  position: relative; isolation: isolate;
  display: inline-flex; align-items: center; gap: 16px;
  height: var(--h); padding: 0 8px 0 26px; border-radius: 999px;
  font-weight: 500; font-size: 16px; letter-spacing: -.01em; white-space: nowrap;
  transition: transform .5s var(--ease), background-color .3s, color .3s, box-shadow .4s var(--ease), border-color .3s;
}
.btn--sm { --h: 46px; padding-left: 20px; font-size: 15px; gap: 12px; }
.btn--lg { --h: 66px; font-size: 17.5px; padding-left: 30px; }
.btn__label { display: inline-block; overflow: hidden; height: 1.3em; line-height: 1.3em; }
.btn__label > span { display: block; transition: transform .6s var(--ease); }
.btn__label > span::after { content: attr(data-text); display: block; }
.btn__icon {
  width: calc(var(--h) - 16px); height: calc(var(--h) - 16px); border-radius: 50%;
  display: grid; place-items: center; flex-shrink: 0; transition: transform .6s var(--ease), background-color .3s, color .3s;
}
.ico { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.btn--dark { background: var(--ink); color: var(--paper); }
.btn--dark .btn__icon { background: var(--sky); color: var(--ink); }
.btn--sky { background: var(--sky); color: var(--ink); }
.btn--sky .btn__icon { background: var(--ink); color: var(--sky); }
.btn--line { border: 1px solid var(--line); color: var(--ink); background: rgba(255, 255, 255, .5); }
.btn--line .btn__icon { background: var(--ink); color: var(--paper); }
.btn--line-dark { border: 1px solid var(--line-dark); color: var(--paper); }
.btn--line-dark .btn__icon { background: var(--paper); color: var(--ink); }
@media (hover: hover) {
  .btn:hover .btn__label > span { transform: translateY(-50%); }
  .btn:hover .btn__icon { transform: rotate(45deg); }
  .btn--sky:hover { box-shadow: 0 18px 50px -12px rgba(142, 197, 223, .7); }
  .btn--dark:hover { box-shadow: 0 18px 50px -14px rgba(13, 14, 15, .5); }
  .btn--line:hover { border-color: var(--ink); background: var(--white); }
  .btn--line-dark:hover { border-color: var(--paper); }
}
.magnetic { will-change: transform; }

.link-u { position: relative; display: inline-flex; align-items: center; gap: 8px; font-weight: 500; padding-bottom: 4px; }
.link-u::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px; background: currentColor; transform-origin: right; transition: transform .6s var(--ease); }
.link-u .ico { width: 16px; height: 16px; transition: transform .5s var(--ease); }
@media (hover: hover) {
  .link-u:hover::after { transform: scaleX(0); transform-origin: left; animation: line-in .6s var(--ease) .25s forwards; }
  .link-u:hover .ico { transform: translate(2px, -2px); }
}
@keyframes line-in { from { transform: scaleX(0); transform-origin: left; } to { transform: scaleX(1); transform-origin: left; } }

/* ---------- Pagina-overgang ---------- */
.curtain { display: none; }
.js .curtain {
  display: grid; place-items: center;
  position: fixed; inset: 0; z-index: 160; background: var(--ink); color: var(--paper);
  clip-path: inset(0 0 0 0);
  pointer-events: none;
}
.js .curtain.is-out { clip-path: inset(0 0 100% 0); transition: clip-path 1s var(--ease-io); }
.curtain__inner { display: grid; justify-items: center; gap: 18px; }
.curtain__title { font-family: var(--serif); font-style: italic; font-size: clamp(44px, 7vw, 96px); line-height: 1; letter-spacing: -.02em; color: var(--sky); }
.curtain .brand__mark { height: 40px; }

/* ---------- Cursor ---------- */
.cursor { position: fixed; inset: 0; pointer-events: none; z-index: 180; display: none; }
.has-cursor .cursor { display: block; }
.cursor__ring { position: absolute; left: 0; top: 0; width: 0; height: 0; opacity: 0; transition: opacity .3s; }
.cursor.is-visible .cursor__ring { opacity: 1; }
.cursor__circle { position: absolute; left: -18px; top: -18px; width: 36px; height: 36px; border-radius: 50%; border: 1.5px solid rgba(66, 105, 124, .55); transition: transform .5s var(--ease), background-color .3s, border-color .3s; }
.cursor.is-hover .cursor__circle { transform: scale(.45); background: var(--slate); border-color: transparent; }
.cursor.has-label .cursor__circle { transform: scale(2.7); background: var(--ink); border-color: transparent; }
.cursor__label { position: absolute; left: 0; top: 0; transform: translate(-50%, -50%) scale(.6); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--sky); opacity: 0; white-space: nowrap; transition: opacity .25s, transform .5s var(--ease); }
.cursor.has-label .cursor__label { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ---------- Brand ---------- */
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__mark { height: 34px; width: auto; }
.brand__name { display: grid; font-weight: 900; font-size: 12.5px; letter-spacing: .16em; line-height: 1; }
.brand__name span { letter-spacing: .272em; }
.brand--light { color: var(--paper); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; z-index: 100; top: 14px; left: var(--gutter); right: var(--gutter);
  max-width: calc(var(--container) - 2 * var(--gutter) + 24px); margin-inline: auto;
  height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 9px 0 22px; border-radius: 999px;
  background: rgba(245, 244, 240, .74);
  backdrop-filter: blur(18px) saturate(1.5); -webkit-backdrop-filter: blur(18px) saturate(1.5);
  border: 1px solid rgba(13, 14, 15, .07);
  box-shadow: 0 10px 40px -20px rgba(13, 14, 15, .25);
  transition: transform .7s var(--ease);
}
.nav.is-hidden { transform: translateY(-130%); }
.nav__links { position: relative; display: flex; align-items: center; gap: 2px; }
.nav__links > a, .nav__dd-btn {
  position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 15px; font-size: 15px; font-weight: 500; border-radius: 999px; transition: color .3s;
}
.nav__links > a[aria-current="page"] { color: var(--slate); }
.nav__links > a[aria-current="page"]::after { content: ""; position: absolute; left: 50%; bottom: 3px; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: var(--slate); }
.nav__pill { position: absolute; left: 0; top: 0; height: 100%; width: 0; border-radius: 999px; background: rgba(13, 14, 15, .06); opacity: 0; transition: transform .45s var(--ease), width .45s var(--ease), opacity .3s; }
.nav__dd { position: relative; }
.nav__dd-btn .ico { width: 13px; height: 13px; stroke-width: 2.2; transition: transform .4s var(--ease); }
.nav__dd.is-open .nav__dd-btn .ico { transform: rotate(180deg); }
.nav__panel {
  position: absolute; top: calc(100% + 16px); left: -14px; width: 330px; padding: 8px;
  border-radius: 22px; background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--line); box-shadow: 0 30px 70px -25px rgba(13, 14, 15, .35);
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(.98); transform-origin: 30px 0;
  transition: opacity .3s var(--ease), transform .45s var(--ease), visibility 0s .45s;
}
.nav__panel::before { content: ""; position: absolute; left: 0; right: 0; top: -18px; height: 18px; }
.nav__dd.is-open .nav__panel { opacity: 1; visibility: visible; transform: none; transition: opacity .3s var(--ease), transform .45s var(--ease); }
.nav__panel a { display: flex; align-items: center; gap: 14px; padding: 11px 12px; border-radius: 14px; font-size: 15px; font-weight: 500; transition: background-color .25s; }
.nav__panel a .mono { color: var(--muted); width: 22px; }
.nav__panel a .ico { margin-left: auto; width: 15px; height: 15px; opacity: 0; transform: translate(-4px, 4px); transition: opacity .3s, transform .4s var(--ease); }
.nav__panel a:hover, .nav__panel a:focus-visible { background: var(--paper); }
.nav__panel a:hover .ico, .nav__panel a:focus-visible .ico { opacity: 1; transform: none; }
.nav__panel-all { border-top: 1px solid var(--line); margin-top: 6px; padding-top: 6px; }
.nav__right { display: flex; align-items: center; gap: 18px; }
.nav__status { display: inline-flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--muted); white-space: nowrap; }
.pulse { position: relative; width: 8px; height: 8px; border-radius: 50%; background: #3FB27F; flex-shrink: 0; }
.pulse::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: #3FB27F; animation: ping 2s var(--ease) infinite; }
@keyframes ping { 0% { transform: scale(1); opacity: .7; } 80%, 100% { transform: scale(3); opacity: 0; } }
.nav__burger { display: none; width: 46px; height: 46px; border-radius: 50%; background: var(--ink); position: relative; }
.nav__burger span { position: absolute; left: 14px; right: 14px; height: 1.6px; background: var(--paper); transition: transform .5s var(--ease); }
.nav__burger span:first-child { top: 19px; }
.nav__burger span:last-child { top: 26px; }
.menu-open .nav__burger span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-open .nav__burger span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

.menu {
  position: fixed; inset: 0; z-index: 90; background: var(--ink); color: var(--paper);
  padding: 110px var(--gutter) 36px; display: flex; flex-direction: column; gap: 32px; overflow-y: auto;
  clip-path: inset(0 0 100% 0); visibility: hidden; transition: clip-path .8s var(--ease-io), visibility 0s .8s;
}
.menu-open .menu { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path .8s var(--ease-io); }
.menu__links { display: grid; gap: 4px; }
.menu__links a { display: flex; align-items: baseline; gap: 16px; font-size: clamp(38px, 10vw, 60px); letter-spacing: -.04em; font-weight: 500; line-height: 1.12; }
.menu__links a[aria-current="page"] { color: var(--sky); }
.menu__links .mono { color: var(--sky); }
.menu__sub { display: grid; gap: 10px; color: var(--muted-dark); }
.menu__foot { display: grid; gap: 8px; color: var(--muted-dark); margin-top: auto; }

/* ---------- Pagina-hero (donker paneel, zoals live subpagina's) ---------- */
.phero {
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--ink); color: var(--paper);
  border-radius: 0 0 clamp(28px, 4vw, 52px) clamp(28px, 4vw, 52px);
  padding: clamp(130px, 15vw, 190px) 0 clamp(60px, 8vw, 100px);
}
.phero__dots { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%;
  -webkit-mask-image: radial-gradient(110% 90% at 70% 30%, #000 25%, transparent 80%); mask-image: radial-gradient(110% 90% at 70% 30%, #000 25%, transparent 80%); }
.phero__glow { position: absolute; z-index: -2; width: 1000px; height: 1000px; right: -320px; top: -420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(66, 105, 124, .7), rgba(66, 105, 124, 0) 62%); animation: drift 16s ease-in-out infinite alternate; pointer-events: none; }
@keyframes drift { to { transform: translate(-140px, 90px) scale(1.12); } }
.crumbs { display: flex; gap: 10px; color: var(--faint-dark); }
.crumbs a { transition: color .3s; }
.crumbs a:hover { color: var(--paper); }
.crumbs [aria-current] { color: var(--sky); }
.phero .display { margin-top: 26px; }
.phero .lead { margin-top: 28px; }

/* ---------- CTA ---------- */
.cta { padding: var(--section) 0; }
.cta__panel {
  position: relative; overflow: hidden; isolation: isolate;
  padding: clamp(36px, 7vw, 110px) clamp(24px, 6vw, 96px);
  border-radius: 40px; background: var(--sky);
  display: grid; justify-items: center; text-align: center;
}
.cta__panel .label { color: rgba(13, 14, 15, .6); }
.cta__panel .label::before { background: var(--ink); box-shadow: 0 0 0 4px rgba(13, 14, 15, .1); }
.cta__blobs { position: absolute; inset: 0; z-index: -1; filter: blur(50px); }
.cta__blobs i { position: absolute; border-radius: 50%; }
.cta__blobs i:nth-child(1) { width: 520px; height: 520px; left: -140px; top: -160px; background: #E7F3F8; animation: blob1 14s ease-in-out infinite alternate; }
.cta__blobs i:nth-child(2) { width: 460px; height: 460px; right: -120px; bottom: -200px; background: #7FB3CC; animation: blob2 12s ease-in-out infinite alternate; }
.cta__blobs i:nth-child(3) { width: 300px; height: 300px; left: 45%; top: 40%; background: #F5F4F0; opacity: .6; animation: blob1 10s ease-in-out infinite alternate-reverse; }
@keyframes blob1 { to { transform: translate(140px, 90px) scale(1.15); } }
@keyframes blob2 { to { transform: translate(-160px, -60px) scale(.9); } }
.cta__title { margin-top: 26px; font-size: clamp(42px, 7vw, 118px); line-height: .94; letter-spacing: -.055em; font-weight: 500; max-width: 1100px; text-wrap: balance; }
.cta__title em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.02em; }
.cta__lead { margin-top: 24px; max-width: 540px; font-size: 18.5px; color: rgba(13, 14, 15, .7); }
.cta__actions { margin-top: 38px; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: var(--paper); padding: 90px 0 28px; overflow: hidden; }
.footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; }
.footer__brand .brand__mark { height: 46px; }
.footer__brand .brand__name { font-size: 16px; }
.footer__brand p { margin-top: 20px; color: var(--muted-dark); max-width: 300px; font-size: 15.5px; }
.footer__col { display: grid; align-content: start; gap: 10px; font-size: 15.5px; }
.footer__col .mono { color: var(--sky); margin-bottom: 8px; }
.footer__col a, .footer__col span:not(.mono) { color: rgba(245, 244, 240, .82); width: fit-content; transition: color .3s, transform .4s var(--ease); }
.footer__col a:hover { color: var(--paper); transform: translateX(4px); }
.footer__col .placeholder { color: var(--faint-dark); outline-color: rgba(178, 213, 229, .35); }
.footer__mark { margin-top: 80px; line-height: .8; white-space: nowrap; overflow: hidden; padding-bottom: .04em; }
.footer__mark-text { display: inline-block; font-weight: 500; letter-spacing: -.065em; font-size: 15vw; color: var(--paper); }
.footer__mark-text .ch { display: inline-block; }
.footer__mark-text .ch:nth-child(n+10) { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.02em; color: var(--sky); }
.footer__bottom { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--line-dark); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 14px; color: var(--muted-dark); }
.footer__bottom a:hover { color: var(--paper); }

/* ---------- Gedeelde responsive ---------- */
@media (max-width: 1180px) { .nav__status { display: none; } }
@media (max-width: 960px) {
  .nav__links, .nav .btn--sm { display: none; }
  .nav__burger { display: block; }
  .sec-head { grid-template-columns: 1fr; }
  .sec-head__lead { justify-self: start; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .nav { height: 58px; top: 10px; padding-left: 16px; padding-right: 6px; }
  .nav .brand__mark { height: 28px; }
  .nav .brand__name { font-size: 11px; }
  .cta__panel { border-radius: 28px; text-align: left; justify-items: start; }
  .cta__actions { justify-content: flex-start; width: 100%; }
  .cta__actions .btn { width: 100%; justify-content: space-between; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* =========================================================
   IEDERE ONTMOETING TELT — one-pager voor het boekje
   Siteframe van Alliance Builder, met de navy + goud van het boekje.
   ========================================================= */
:root {
  --navy: #101929;
  --navy-2: #192236;
  --navy-3: #243149;
  --gold: #CFA65E;
  --gold-2: #E2C48C;
  --gold-ink: #8C6A2F;
  --cream: #F7F4EC;
}
.hero-btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.btn--gold { background: var(--gold); color: var(--navy); }
.btn--gold .btn__icon { background: var(--navy); color: var(--gold); }
@media (hover: hover) { .btn--gold:hover { box-shadow: 0 18px 50px -12px rgba(207, 166, 94, .6); } }
.ico { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.h2 em, .display em { color: var(--gold-ink); }
.on-dark .h2 em, .on-dark .display em, .bk-hero .display em { color: var(--gold); }
.label::before { background: var(--gold); box-shadow: 0 0 0 4px rgba(207, 166, 94, .18); }
.bk-icon { width: 48px; height: 48px; border-radius: 50%; background: var(--navy); color: var(--gold); display: grid; place-items: center; flex-shrink: 0; }
.bk-icon .ico { width: 22px; height: 22px; stroke-width: 1.6; }
.bk-icon--sm { width: 34px; height: 34px; }
.bk-icon--sm .ico { width: 17px; height: 17px; }
.bk-fliplink { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--gold-ink); border-bottom: 1px solid currentColor; padding-bottom: 2px; width: fit-content; }
.bk-fliplink .ico { width: 14px; height: 14px; transition: transform .4s var(--ease); }
.bk-fliplink:hover .ico { transform: translate(2px, -2px); }
.on-dark .bk-fliplink { color: var(--gold); }
.bk-sign { font-family: var(--serif); font-style: italic; font-size: 30px; color: var(--gold-ink); margin-top: 6px; }
.bk-sign--light { color: var(--gold); }

/* ---------- hero ---------- */
.bk-hero { background: var(--navy); }
.bk-glow { background: radial-gradient(circle, rgba(207, 166, 94, .28), rgba(207, 166, 94, 0) 62%); }
.bk-hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 5vw, 80px); align-items: center; }
.bk-eyebrow { display: block; margin-top: 24px; color: var(--gold); }
.bk-hero .display { margin-top: 14px; font-size: clamp(54px, 8vw, 128px); }
.bk-hero__lead { margin-top: 26px; font-size: clamp(20px, 1.8vw, 25px); color: var(--paper); }
.bk-hero__welcome { margin-top: 16px; max-width: 520px; color: var(--muted-dark); }
.bk-stats { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 12px clamp(20px, 3vw, 44px); margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line-dark); }
.bk-stats div { display: grid; gap: 6px; }
.bk-stats dd { font-size: clamp(30px, 3vw, 44px); letter-spacing: -.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.bk-stats dt { order: 2; font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--faint-dark); }

/* 3D-boek */
.book3d { position: relative; display: grid; justify-items: center; gap: 22px; }
.book3d__scene { perspective: 1800px; width: min(380px, 78%); }
.book3d__book { position: relative; aspect-ratio: 297 / 419; transform-style: preserve-3d; transform: rotateY(-24deg) rotateX(6deg); transition: transform 1s var(--ease); }
.book3d__cover, .book3d__back { position: absolute; inset: 0; border-radius: 3px 8px 8px 3px; overflow: hidden; }
.book3d__cover { transform: translateZ(14px); box-shadow: inset 4px 0 8px rgba(0, 0, 0, .35); }
.book3d__cover img { width: 100%; height: 100%; object-fit: cover; }
.book3d__shine { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(255, 255, 255, 0) 30%, rgba(255, 255, 255, .22) 46%, rgba(255, 255, 255, 0) 60%); background-size: 260% 100%; background-position: 100% 0; transition: background-position 1.2s var(--ease); }
.book3d:hover .book3d__shine { background-position: 0 0; }
.book3d__back { transform: translateZ(-14px); background: var(--navy-2); box-shadow: 30px 40px 70px -20px rgba(0, 0, 0, .7); }
.book3d__pages { position: absolute; top: 1.5%; bottom: 1.5%; right: 0; width: 28px; transform: translateX(14px) rotateY(90deg); background: repeating-linear-gradient(90deg, #f3efe4 0 2px, #d9d3c3 2px 3px); }
.book3d__note { position: absolute; right: -4%; bottom: 14%; width: 190px; padding: 16px 18px; background: #E6C990; color: var(--navy); font-family: var(--serif); font-style: italic; font-size: 19px; line-height: 1.2; transform: rotate(-6deg) translateZ(0); box-shadow: 0 20px 30px -14px rgba(0, 0, 0, .6); border-radius: 2px; }
.book3d__cap { color: var(--faint-dark); }

/* ---------- inhoudsbalk ---------- */
.bk-toc { position: sticky; top: 90px; z-index: 40; margin: 18px auto 0; width: max-content; max-width: calc(100% - 2 * var(--gutter)); border-radius: 999px; background: rgba(255, 255, 255, .86); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid var(--line); box-shadow: 0 16px 40px -24px rgba(13, 14, 15, .35); overflow: hidden; transition: top .7s var(--ease); }
.nav-up .bk-toc { top: 14px; }
.bk-toc__in { display: flex; gap: 2px; padding: 6px; overflow-x: auto; scrollbar-width: none; }
.bk-toc__in::-webkit-scrollbar { display: none; }
.bk-toc a { flex: none; padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--muted); transition: background-color .3s, color .3s; }
.bk-toc a:hover { color: var(--ink); }
.bk-toc a.is-current { background: var(--navy); color: var(--paper); }
.bk-toc__bar { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; }
.bk-toc__bar i { display: block; height: 100%; background: var(--gold); transform: scaleX(var(--p, 0)); transform-origin: left; }

/* ---------- voorwoord ---------- */
.bk-fore { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.bk-fore__head { position: sticky; top: 170px; display: grid; gap: 24px; justify-items: start; }
.bk-fore__body { display: grid; gap: 18px; font-size: 18px; color: var(--ink-3); }
.bk-chat { margin: 10px 0; max-width: 440px; border-radius: 26px; background: var(--navy); color: var(--paper); padding: 16px; box-shadow: 0 40px 80px -40px rgba(16, 25, 41, .7); }
.bk-chat__bar { display: flex; align-items: center; gap: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line-dark); }
.bk-chat__bar div { display: grid; line-height: 1.2; flex: 1; }
.bk-chat__bar strong { font-weight: 600; font-size: 15px; }
.bk-chat__state { font-size: 12.5px; color: var(--gold); }
.bk-chat__avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--gold); color: var(--navy); display: grid; place-items: center; font-weight: 700; }
.bk-chat__time { color: var(--faint-dark); }
.bk-chat__body { min-height: 130px; padding-top: 16px; display: grid; align-content: start; }
.bk-chat__typing { display: inline-flex; gap: 4px; padding: 12px 16px; border-radius: 18px 18px 18px 4px; background: var(--navy-3); width: fit-content; }
.bk-chat__typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-2); animation: bkdot 1.2s infinite; }
.bk-chat__typing i:nth-child(2) { animation-delay: .15s; }
.bk-chat__typing i:nth-child(3) { animation-delay: .3s; }
@keyframes bkdot { 0%, 80%, 100% { opacity: .3; transform: none; } 40% { opacity: 1; transform: translateY(-3px); } }
.bk-chat__bubble { display: none; margin: 0; padding: 14px 16px 10px; border-radius: 18px 18px 18px 4px; background: var(--paper); color: var(--ink); font-size: 16px; line-height: 1.5; max-width: 92%; }
.bk-chat__meta { display: block; text-align: right; margin-top: 6px; font-size: 11.5px; color: #4C8FC7; }
.bk-chat.is-sent .bk-chat__typing { display: none; }
.bk-chat.is-sent .bk-chat__bubble { display: block; animation: bkpop .6s var(--ease); }
.bk-chat.is-sent .bk-chat__state { color: var(--faint-dark); }
@keyframes bkpop { from { opacity: 0; transform: translateY(10px) scale(.97); } }

/* ---------- methode ---------- */
.bk-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.bk-step { padding: 26px; border-radius: 24px; background: var(--white); border: 1px solid var(--line); display: grid; gap: 12px; align-content: start; }
.bk-step__top { display: flex; align-items: center; justify-content: space-between; }
.bk-step__top .mono { color: var(--gold-ink); }
.bk-step h3 { margin-top: 12px; font-size: 26px; letter-spacing: -.035em; font-weight: 500; line-height: 1.05; }
.bk-step p { color: var(--muted); font-size: 15.5px; }
.bk-step__ex { display: grid; gap: 8px; margin-top: 6px; padding-top: 14px; border-top: 1px solid var(--line); }
.bk-step__ex li { font-family: var(--serif); font-style: italic; font-size: 17px; line-height: 1.3; padding-left: 16px; position: relative; }
.bk-step__ex li::before { content: ""; position: absolute; left: 0; top: .55em; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

.bk-formula { margin-top: 16px; padding: clamp(26px, 4vw, 52px); border-radius: 32px; background: var(--cream); border: 1px solid rgba(207, 166, 94, .3); display: grid; gap: 26px; }
.bk-formula__head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.bk-formula__parts { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.bk-part { display: inline-flex; align-items: center; gap: 10px; padding: 6px 16px 6px 6px; border-radius: 999px; background: var(--white); border: 1px solid var(--line); font-weight: 500; font-size: 15px; transition: background-color .35s, color .35s, border-color .35s; }
.bk-part.is-on { background: var(--navy); color: var(--paper); border-color: var(--navy); }
.bk-plus { font-family: var(--serif); font-size: 28px; color: var(--gold-ink); }
.bk-formula__eq { font-family: var(--serif); font-style: italic; font-size: 26px; }
.bk-formula__mini { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 36px); line-height: 1.3; letter-spacing: -.01em; }
.bk-seg { border-radius: 6px; transition: background-color .4s, color .4s, box-shadow .4s; box-decoration-break: clone; -webkit-box-decoration-break: clone; padding: 0 .1em; }
.bk-seg.is-on { background: var(--navy); color: var(--paper); box-shadow: 0 0 0 4px var(--navy); }
.bk-formula__foot { display: flex; flex-wrap: wrap; gap: 10px 40px; }
.bk-checks, .bk-nots { display: flex; flex-wrap: wrap; gap: 8px; }
.bk-checks li, .bk-nots li { display: inline-flex; align-items: center; gap: 8px; font-size: 14.5px; padding: 6px 14px; border-radius: 999px; background: var(--white); border: 1px solid var(--line); }
.bk-checks li::before { content: "✓"; color: var(--gold-ink); font-weight: 700; }
.bk-nots li::before { content: "–"; color: var(--muted); }
.bk-remember { display: grid; gap: 6px; font-size: 18px; max-width: 720px; }
.bk-remember .mono { color: var(--gold-ink); }

/* ---------- 25 gouden regels ---------- */
.bk-rules-sec { margin-top: var(--section); padding: var(--section) 0; background: var(--navy); color: var(--paper); border-radius: 40px; }
.bk-rules-sec .sec-head__lead { color: var(--muted-dark); }
.bk-rules { display: grid; grid-template-columns: 1.1fr .9fr; gap: 20px; align-items: start; }
.bk-tiles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.bk-tile { display: grid; gap: 8px; align-content: space-between; min-height: 104px; padding: 14px; border-radius: 16px; text-align: left; background: rgba(245, 244, 240, .05); border: 1px solid var(--line-dark); color: var(--paper); font-size: 13.5px; line-height: 1.25; transition: background-color .3s, border-color .3s, transform .4s var(--ease), color .3s; }
.bk-tile .mono { color: var(--gold); font-size: 12px; }
.bk-tile:hover { border-color: var(--gold); transform: translateY(-2px); }
.bk-tile[aria-pressed="true"] { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.bk-tile[aria-pressed="true"] .mono { color: var(--navy); }
.bk-tile.is-seen:not([aria-pressed="true"]) { background: rgba(207, 166, 94, .1); }
.bk-rule { position: sticky; top: 170px; padding: clamp(26px, 3vw, 40px); border-radius: 28px; background: var(--paper); color: var(--ink); display: grid; gap: 16px; min-height: 420px; align-content: start; }
.bk-rule__top { display: flex; align-items: baseline; gap: 10px; }
.bk-rule__num { font-family: var(--serif); font-style: italic; font-size: 76px; line-height: .9; color: var(--gold-ink); }
.bk-rule__top .mono { color: var(--muted); }
.bk-rule__title { font-size: clamp(28px, 2.8vw, 40px); letter-spacing: -.04em; line-height: 1.05; font-weight: 500; }
.bk-rule__text { font-size: 19px; }
.bk-rule__extras { display: grid; gap: 10px; }
.bk-rule__extra { padding: 14px 16px; border-radius: 16px; background: var(--white); border: 1px solid var(--line); }
.bk-rule__extra .mono { color: var(--gold-ink); }
.bk-rule__extra p { margin-top: 4px; font-family: var(--serif); font-size: 19px; line-height: 1.35; }
.bk-rule__nav { display: flex; align-items: center; gap: 10px; margin-top: auto; padding-top: 10px; }
.bk-round { width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; background: var(--white); transition: background-color .3s, color .3s; }
.bk-round:hover { background: var(--navy); color: var(--gold); }
.bk-rule__bar { flex: 1; height: 3px; border-radius: 3px; background: var(--line); overflow: hidden; margin-left: 8px; }
.bk-rule__bar i { display: block; height: 100%; background: var(--gold); transform: scaleX(var(--p, .04)); transform-origin: left; transition: transform .5s var(--ease); }
.bk-rule.is-swap > *:not(.bk-rule__nav) { animation: bkswap .5s var(--ease); }
@keyframes bkswap { from { opacity: 0; transform: translateY(8px); } }
.bk-remember-list { margin-top: 20px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; padding: 22px 26px; border-radius: 22px; border: 1px solid var(--line-dark); }
.bk-remember-list ul { display: flex; flex-wrap: wrap; gap: 8px; }
.bk-remember-list li { padding: 6px 14px; border-radius: 999px; background: var(--gold); color: var(--navy); font-weight: 500; font-size: 14.5px; }
.bk-remember-list p { color: var(--muted-dark); }
.bk-remember-list__end { font-family: var(--serif); font-style: italic; font-size: 20px; color: var(--paper) !important; }

/* ---------- berichten ---------- */
.bk-tabs { display: flex; gap: 6px; padding: 6px; border-radius: 999px; background: var(--white); border: 1px solid var(--line); width: fit-content; max-width: 100%; overflow-x: auto; scrollbar-width: none; margin-bottom: 28px; }
.bk-tabs::-webkit-scrollbar { display: none; }
.bk-tab { flex: none; display: inline-flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 999px; font-weight: 500; font-size: 15px; color: var(--muted); transition: background-color .3s, color .3s; }
.bk-tab sup { font-family: var(--mono); font-size: 10.5px; color: var(--gold-ink); top: -.5em; }
.bk-tab[aria-selected="true"] { background: var(--navy); color: var(--paper); }
.bk-tab[aria-selected="true"] sup { color: var(--gold); }
.bk-panel__head { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 40px; align-items: end; margin-bottom: 22px; }
.bk-panel__tag { font-family: var(--serif); font-style: italic; font-size: clamp(26px, 2.8vw, 40px); line-height: 1.1; color: var(--gold-ink); }
.bk-panel__intro { color: var(--muted); }
.bk-panel__head .bk-fliplink { grid-column: 2; }
.bk-panel:not([hidden]) { animation: bkswap .5s var(--ease); }
.bk-msgs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.bk-msg { display: grid; gap: 14px; align-content: start; padding: 26px; border-radius: 24px; background: var(--white); border: 1px solid var(--line); }
.bk-msg__head { display: flex; align-items: baseline; gap: 12px; }
.bk-msg__head .mono { color: var(--gold-ink); }
.bk-msg h4 { margin: 0; font-size: 21px; letter-spacing: -.025em; font-weight: 500; }
.bk-msg__text { font-family: var(--serif); font-size: 21px; line-height: 1.4; padding: 18px 20px; border-radius: 18px 18px 18px 4px; background: var(--cream); }
.bk-why, .bk-tip { display: grid; gap: 6px; font-size: 14.5px; }
.bk-why .mono, .bk-tip .mono { color: var(--gold-ink); }
.bk-why ul { display: grid; gap: 3px; }
.bk-why li { padding-left: 14px; position: relative; color: var(--muted); }
.bk-why li::before { content: ""; position: absolute; left: 0; top: .6em; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.bk-tip { padding: 12px 14px; border-radius: 14px; background: rgba(207, 166, 94, .12); }
.bk-tip p { color: var(--ink-3); }
.bk-copy { display: inline-flex; align-items: center; gap: 8px; width: fit-content; height: 40px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line); font-size: 14px; font-weight: 500; transition: background-color .3s, color .3s, border-color .3s; }
.bk-copy:hover, .bk-copy.is-done { background: var(--navy); color: var(--paper); border-color: var(--navy); }
.bk-copy .ico { width: 16px; height: 16px; }

/* ---------- berichtenbouwer ---------- */
.bk-builder { display: grid; grid-template-columns: 1.25fr .75fr; gap: 16px; align-items: start; }
.bk-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.bk-col { border-radius: 22px; background: var(--white); border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; }
.bk-col__head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.bk-col__head div { display: grid; line-height: 1.25; }
.bk-col__head .mono { color: var(--gold-ink); font-size: 10.5px; }
.bk-col__head strong { font-weight: 600; font-size: 15.5px; }
.bk-col__step { display: none; }
.bk-col__list { max-height: 290px; overflow-y: auto; padding: 6px; overscroll-behavior: contain; scrollbar-width: thin; }
.bk-opt { width: 100%; display: grid; grid-template-columns: 26px 1fr; gap: 8px; text-align: left; padding: 9px 10px; border-radius: 12px; font-size: 14.5px; line-height: 1.35; transition: background-color .25s, color .25s; }
.bk-opt .mono { color: var(--muted); font-size: 10.5px; padding-top: 3px; }
.bk-opt:hover { background: var(--paper); }
.bk-opt[aria-pressed="true"] { background: var(--navy); color: var(--paper); }
.bk-opt[aria-pressed="true"] .mono { color: var(--gold); }
.bk-out { position: sticky; top: 170px; padding: 24px; border-radius: 26px; background: var(--navy); color: var(--paper); display: grid; gap: 16px; box-shadow: 0 50px 100px -50px rgba(16, 25, 41, .8); }
.bk-out__top { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.bk-out__top .mono { color: var(--gold); }
.bk-out__count { color: var(--faint-dark) !important; }
.bk-fields { display: grid; gap: 8px; }
.bk-field { display: grid; gap: 5px; font-size: 13px; color: var(--muted-dark); }
.bk-field small { color: var(--faint-dark); }
.bk-field input { width: 100%; font: inherit; font-size: 15px; color: var(--paper); background: rgba(245, 244, 240, .07); border: 1px solid var(--line-dark); border-radius: 12px; padding: 10px 12px; outline: 0; transition: border-color .3s, background-color .3s; }
.bk-field input:focus { border-color: var(--gold); background: rgba(245, 244, 240, .1); }
.bk-field input::placeholder { color: rgba(245, 244, 240, .35); }
.bk-out__msg { min-height: 190px; padding: 20px; border-radius: 20px 20px 20px 6px; background: var(--paper); color: var(--ink); font-family: var(--serif); font-size: 21px; line-height: 1.4; }
.bk-out__msg span { border-radius: 4px; transition: background-color .4s, filter .25s; cursor: pointer; }
.bk-out__msg span:hover { background: rgba(207, 166, 94, .25); }
.bk-out__msg .is-rolling { filter: blur(2px); opacity: .7; }
.bk-out__msg .bk-mine { color: var(--gold-ink); }
.bk-out__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 14px; font-size: 13px; color: var(--muted-dark); }
.bk-out__meta .is-good { color: var(--gold-2); }
.bk-out__actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.bk-copy--main { height: 58px; padding: 0 22px; border-color: var(--line-dark); color: var(--paper); }
.bk-copy--main:hover, .bk-copy--main.is-done { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.bk-out__note { font-size: 13px; color: var(--faint-dark); }

/* ---------- tot slot ---------- */
.bk-end { max-width: 980px; display: grid; gap: 26px; }
.bk-end__q { font-size: clamp(26px, 3vw, 40px); line-height: 1.2; letter-spacing: -.03em; font-weight: 500; }
.bk-end__lines { display: grid; gap: 4px; font-family: var(--serif); font-size: clamp(26px, 3vw, 42px); line-height: 1.2; }
.bk-end__lines p:nth-child(2) { color: var(--gold-ink); font-style: italic; font-size: 1.4em; }
.bk-end__cols { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; color: var(--muted); font-size: 18px; }
.bk-end__cols p + p { margin-top: 8px; }
.bk-close { margin-top: clamp(56px, 7vw, 96px); padding: clamp(36px, 7vw, 100px) clamp(24px, 6vw, 96px); border-radius: 40px; background: var(--navy); color: var(--paper); text-align: center; display: grid; justify-items: center; gap: 18px; position: relative; overflow: hidden; isolation: isolate; }
.bk-close::before { content: ""; position: absolute; z-index: -1; width: 900px; height: 900px; left: 50%; top: -520px; margin-left: -450px; border-radius: 50%; background: radial-gradient(circle, rgba(207, 166, 94, .3), transparent 62%); }
.bk-close__quote { margin: 8px 0 0; max-width: 1000px; font-size: clamp(38px, 6vw, 92px); line-height: 1; letter-spacing: -.05em; font-weight: 500; text-wrap: balance; }
.bk-close__quote em { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--gold); letter-spacing: -.02em; }
.bk-close > p { color: var(--muted-dark); font-size: 18px; max-width: 560px; }
.bk-close__ask { margin-top: 18px; color: var(--paper) !important; font-weight: 500; }
.bk-close > .bk-sign { font-size: 34px; color: var(--gold); margin-top: 0; }
.curtain__title { color: var(--gold); }
.bk-close .hero-btns { justify-content: center; margin-top: 4px; }

/* toast */
.toast { position: fixed; left: 50%; bottom: 28px; z-index: 260; transform: translate(-50%, calc(100% + 60px)); visibility: hidden; padding: 12px 20px; border-radius: 999px; background: var(--navy); color: var(--paper); font-size: 14px; font-weight: 500; transition: transform .6s var(--ease), visibility 0s .6s; }
.toast.is-on { transform: translate(-50%, 0); visibility: visible; transition: transform .6s var(--ease); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .bk-hero__grid { grid-template-columns: 1fr; }
  .book3d { margin-top: 10px; }
  .bk-steps { grid-template-columns: repeat(2, 1fr); }
  .bk-rules, .bk-builder, .bk-fore { grid-template-columns: 1fr; }
  .bk-rule, .bk-out, .bk-fore__head { position: static; }
  .bk-rule { min-height: 0; }
}
@media (max-width: 760px) {
  .bk-stats { grid-template-columns: repeat(2, auto); }
  .bk-toc { top: 80px; }
  .bk-toc a { font-size: 13px; padding: 7px 12px; }
  .bk-steps, .bk-msgs, .bk-end__cols { grid-template-columns: 1fr; }
  .bk-panel__head { grid-template-columns: 1fr; }
  .bk-panel__head .bk-fliplink { grid-column: 1; }
  .bk-tiles { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 132px; overflow-x: auto; scroll-snap-type: x proximity; padding-bottom: 8px; }
  .bk-tile { scroll-snap-align: start; }
  .bk-cols { grid-template-columns: 1fr; }
  .bk-col__list { display: none; }
  .bk-col__step { display: grid; grid-template-columns: 40px 1fr 40px; align-items: center; gap: 8px; padding: 12px; }
  .bk-col__cur { font-size: 15px; line-height: 1.35; text-align: center; min-height: 2.7em; display: grid; place-items: center; }
  .bk-col__nav { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; }
  .bk-col__nav:active { background: var(--navy); color: var(--gold); }
  .bk-out__msg { font-size: 19px; min-height: 0; }
  .bk-flip__btn { width: 44px; height: 44px; margin-top: -22px; }
  .bk-flip__btn--prev { left: -4px; }
  .bk-flip__btn--next { right: -4px; }
  .bk-flip__label { min-width: 0; }
  .bk-rules-sec, .bk-flip-sec, .bk-close { border-radius: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  .book3d__book { transform: rotateY(-18deg); }
}