/* ============================================================
   MULTI-PAGE SHELL · page heroes, portal, filters, TOC, footer
   ============================================================ */

/* nav active for real pages */
.nav a[aria-current="page"]{color:var(--fg)}
.nav a[aria-current="page"]::after{
  content:"";position:absolute;left:.6rem;right:.6rem;bottom:.1rem;height:2px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 10px var(--glow);
}
@media (max-width:940px){
  .nav.open a[aria-current="page"]::after{display:none}
  .nav.open a[aria-current="page"]{color:var(--cyan)}
}
.theme-btn{
  flex:none;width:34px;height:34px;border-radius:50%;border:1px solid var(--line2);
  background:transparent;color:var(--fg2);display:grid;place-items:center;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.theme-btn:hover{color:var(--cyan);border-color:var(--cyan);background:color-mix(in srgb,var(--cyan) 8%,transparent)}
.theme-btn svg{width:16px;height:16px;display:block}

/* subpage hero */
.page-hero{
  --accent:var(--cyan);
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  padding-block:clamp(86px,12vh,142px) clamp(44px,7vh,68px);
  background:var(--bg2);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(55% 62% at 16% 18%,color-mix(in srgb,var(--accent) 13%,transparent),transparent 70%),
    radial-gradient(42% 50% at 90% 8%,color-mix(in srgb,var(--violet) 8%,transparent),transparent 70%),
    linear-gradient(180deg,transparent 70%,var(--bg) 100%);
}
.page-hero::after{
  content:attr(data-chapter);position:absolute;right:max(3vw,18px);top:50%;transform:translateY(-50%);
  font-family:var(--font-mono);font-size:clamp(6rem,19vw,16rem);line-height:1;letter-spacing:-.07em;
  color:color-mix(in srgb,var(--accent) 9%,transparent);pointer-events:none;user-select:none;
}
.page-hero .wrap{position:relative;z-index:1;max-width:1000px}
.crumbs{display:flex;flex-wrap:wrap;gap:.5rem;margin:0 0 1rem;font-family:var(--font-mono);font-size:.61rem;letter-spacing:.12em;color:var(--muted)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.page-hero .kicker{color:var(--accent)}
.page-hero .kicker::before{background:var(--accent);box-shadow:0 0 8px color-mix(in srgb,var(--accent) 50%,transparent)}
.page-hero h1{
  margin:.15rem 0 0;font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.35rem,1.65rem+4.4vw,4.7rem);line-height:1.06;letter-spacing:-.03em;text-wrap:balance;
}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.page-hero .lede{max-width:60ch;margin-top:1.15rem;font-size:clamp(1rem,.95rem+.35vw,1.14rem);color:var(--fg2);line-height:1.8}
.page-meta{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;margin-top:1.5rem;font-family:var(--font-mono);font-size:.61rem;letter-spacing:.08em;color:var(--muted)}
.page-meta span{display:flex;align-items:center;gap:.42rem}
.page-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.85}

/* sticky page contents */
.toc-bar{
  position:sticky;top:calc(62px + env(safe-area-inset-top,0px));z-index:28;
  border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.toc-bar .wrap{display:flex;gap:4px;overflow-x:auto;padding-block:8px;scrollbar-width:none}
.toc-bar .wrap::-webkit-scrollbar{display:none}
.toc-bar a{
  flex:none;padding:.34rem .62rem;border-radius:999px;text-decoration:none;
  font-family:var(--font-mono);font-size:.63rem;letter-spacing:.06em;color:var(--muted);white-space:nowrap;
  transition:color .2s,background .2s;
}
.toc-bar a:hover{color:var(--fg);background:var(--surface2)}
.toc-bar a.active{color:var(--accent,var(--cyan));background:color-mix(in srgb,var(--accent,var(--cyan)) 10%,transparent)}
body:not(.home) section[id]{scroll-margin-top:124px}
body:not(.home) .toc-bar + .sec{padding-top:clamp(34px,4.5vw,58px)}

/* home portal */
.portal{padding-block:clamp(52px,8vw,92px)}
.portal-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,5vw,64px);align-items:end}
.portal-intro h2{font-size:clamp(1.9rem,1.3rem+3vw,3.2rem)}
.portal-intro p{color:var(--fg2);font-size:.98rem}
.portal-intro .sig{margin-top:1rem;font-family:var(--font-mono);font-size:.63rem;letter-spacing:.12em;color:var(--muted)}
.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:clamp(2rem,4vw,3rem)}
.chapter{
  --accent:var(--cyan);
  position:relative;display:flex;flex-direction:column;min-height:200px;padding:22px;
  border:1px solid var(--line);border-radius:16px;background:var(--surface);
  color:inherit;text-decoration:none;overflow:hidden;
  transition:transform .25s,border-color .25s,background .25s;
}
.chapter:hover{transform:translateY(-4px);border-color:var(--line2);background:var(--surface2)}
.chapter::after{
  content:"";position:absolute;right:-46px;top:-46px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,color-mix(in srgb,var(--accent) 16%,transparent),transparent 70%);
  opacity:.35;transition:opacity .3s;pointer-events:none;
}
.chapter:hover::after{opacity:.9}
.chapter .cno{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.14em;color:var(--accent)}
.chapter h3{margin-top:.5rem;font-size:1.18rem;letter-spacing:-.01em}
.chapter p{margin-top:.4rem;font-size:.82rem;line-height:1.72;color:var(--fg2)}
.chapter .go{margin-top:auto;padding-top:1.1rem;font-family:var(--font-mono);font-size:.6rem;letter-spacing:.1em;color:var(--muted)}
.paths{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:clamp(1.6rem,3.5vw,2.4rem)}
.path{padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--surface);min-width:0}
.path b{font-family:var(--font-display);font-size:.98rem;color:var(--fg)}
.path p{margin:.4rem 0 0;font-size:.78rem;color:var(--muted)}
.path ol{margin:.7rem 0 0;padding-left:1.1rem;font-size:.8rem;color:var(--fg2);line-height:1.85}
.path a{color:var(--fg2);text-decoration:none;border-bottom:1px solid var(--line2)}
.path a:hover{color:var(--cyan)}
.statband{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:1px;margin-top:clamp(1.6rem,3.5vw,2.4rem);background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.statband div{background:var(--bg);padding:18px 12px;text-align:center;min-width:0}
.statband b{display:block;font-family:var(--font-mono);font-size:clamp(1.2rem,1rem+.7vw,1.6rem);letter-spacing:-.03em;color:var(--fg);font-variant-numeric:tabular-nums}
.statband span{display:block;margin-top:.28rem;font-size:.64rem;color:var(--muted);line-height:1.5}
.home-quote{
  margin-top:clamp(2.2rem,5vw,3.6rem);padding-left:clamp(16px,3vw,26px);max-width:34em;
  border-left:2px solid var(--cyan);font-family:var(--font-serif);
  font-size:clamp(1.15rem,.95rem+1.2vw,1.75rem);line-height:1.65;color:var(--fg);
}
.home-quote span{display:block;margin-top:.5rem;font-family:var(--font-mono);font-size:.6rem;letter-spacing:.1em;color:var(--muted)}

/* history filters */
.filterbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;justify-content:space-between;
  margin:0 0 26px;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:var(--surface);
}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{
  appearance:none;border:1px solid var(--line);background:transparent;color:var(--muted);
  font:inherit;font-size:.71rem;padding:.32rem .6rem;border-radius:999px;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.chip:hover{color:var(--fg);border-color:var(--line2)}
.chip.on{background:var(--cyan);border-color:var(--cyan);color:var(--cyan-ink);font-weight:600}
body.page-history .chip.on{background:var(--amber);border-color:var(--amber);color:var(--bg)}
.search{display:flex;align-items:center;gap:8px;padding:.3rem .72rem;border:1px solid var(--line);border-radius:999px;background:var(--bg)}
.search span{font-family:var(--font-mono);font-size:.56rem;letter-spacing:.1em;color:var(--muted);white-space:nowrap;flex:none}
.search input{appearance:none;border:0;background:transparent;color:var(--fg);font:inherit;font-size:.74rem;width:150px;min-width:0;flex:1;outline:none}
.search input::placeholder{color:var(--muted)}
.count{font-family:var(--font-mono);font-size:.63rem;letter-spacing:.08em;color:var(--muted)}

/* shared editorial blocks */
.callout{
  margin:22px 0;padding:18px 20px;border-left:2px solid var(--accent,var(--cyan));
  border-radius:0 12px 12px 0;font-size:.86rem;line-height:1.8;color:var(--fg2);
  background:color-mix(in srgb,var(--accent,var(--cyan)) 5%,var(--surface));
}
.callout b{color:var(--fg)}
.deep{max-width:72ch;margin-top:1.2rem}
.deep p{margin:.9rem 0 0;font-size:.92rem;line-height:1.88;color:var(--fg2)}
.deep p strong{color:var(--fg);font-weight:600}
.deep ul,.deep ol{margin:.9rem 0 0;padding-left:1.2rem;color:var(--fg2);font-size:.9rem}
.deep li{margin:.35rem 0;line-height:1.8}
.deep h3{margin-top:clamp(1.8rem,3.5vw,2.6rem);font-size:1.18rem}
.deep h4{margin-top:1.4rem;font-size:1rem;color:var(--fg)}
.deep-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:1.4rem}
.deep-grid .panel{padding:20px}
.deep-grid h4{margin:0 0 .4rem}
.deep-grid p{margin:0;font-size:.83rem}

/* data table */
.step{grid-template-columns:62px minmax(0,1fr) 180px}
.table-wrap{overflow-x:auto;margin-top:1.2rem;border:1px solid var(--line);border-radius:14px}
.data-table{width:100%;border-collapse:collapse;font-size:.78rem;min-width:560px}
.data-table th,.data-table td{padding:.6rem .7rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.data-table th{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.08em;color:var(--muted);font-weight:400;background:var(--surface)}
.data-table td{color:var(--fg2)}
.data-table tr:last-child td{border-bottom:0}
.data-table td b{color:var(--fg)}

/* previous / next */
.nextprev{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:clamp(2.4rem,5vw,4rem);padding-top:20px;border-top:1px solid var(--line)}
.nextprev a{padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-decoration:none;transition:transform .2s,border-color .2s}
.nextprev a:hover{transform:translateY(-2px);border-color:var(--line2)}
.nextprev .dir{font-family:var(--font-mono);font-size:.58rem;letter-spacing:.12em;color:var(--muted)}
.nextprev b{display:block;margin-top:.35rem;font-family:var(--font-display);font-size:1rem;color:var(--fg)}
.nextprev .next{text-align:right}

/* model grid on the models page */
.hall-viewport{
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 3%,#000 97%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 3%,#000 97%,transparent);
}
.model-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:1.6rem}
.model-grid .mcard{width:auto;min-height:260px}

/* about */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,5vw,56px);margin-top:1.4rem}
.about-grid .panel{padding:24px}
.about-grid h3{font-size:1.05rem;margin-bottom:.5rem}
.about-grid p{font-size:.85rem;color:var(--fg2);line-height:1.8}
.about-grid ul{margin:.6rem 0 0;padding-left:1.1rem;font-size:.82rem;color:var(--fg2)}

/* footer */
.site-foot{padding-block:44px 34px;border-top:1px solid var(--line);background:var(--bg2);font-size:.76rem;color:var(--muted)}
.site-foot .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:28px}
.site-foot .fbrand b{display:block;font-family:var(--font-display);font-size:1rem;color:var(--fg)}
.site-foot .fbrand p{margin-top:.4rem;max-width:36ch;font-size:.74rem;line-height:1.7}
.site-foot nav{display:flex;flex-wrap:wrap;gap:.45rem 1.1rem;align-content:start;justify-content:flex-end}
.site-foot nav a{color:var(--muted);text-decoration:none;font-size:.74rem}
.site-foot nav a:hover{color:var(--cyan)}
.site-foot .foot-note{grid-column:1/-1;margin-top:6px;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;justify-content:space-between;font-size:.65rem}
.site-foot .foot-note a{color:var(--muted)}

/* back to top */
.to-top{
  position:fixed;right:max(18px,env(safe-area-inset-right,0px));bottom:max(68px,calc(env(safe-area-inset-bottom,0px) + 50px));z-index:45;
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line2);cursor:pointer;
  display:grid;place-items:center;background:color-mix(in srgb,var(--bg) 84%,transparent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--fg);font-size:.9rem;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}

@media (max-width:1100px){
  .chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .statband{grid-template-columns:repeat(3,minmax(0,1fr))}
  .model-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .portal-intro{grid-template-columns:1fr}
  .paths{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .nextprev{grid-template-columns:1fr}
  .nextprev .next{text-align:left}
  .page-hero::after{opacity:.7}
  .site-foot .wrap{grid-template-columns:1fr}
  .site-foot nav{justify-content:flex-start}
}
@media (max-width:760px){
  .chapter-grid{grid-template-columns:1fr}
  .statband{grid-template-columns:repeat(2,minmax(0,1fr))}
  .model-grid{grid-template-columns:1fr}
  .deep-grid{grid-template-columns:1fr}
  .filterbar{align-items:stretch}
  .search{width:100%}
  .search input{width:auto}
}
.event .yr{padding-right:.8rem}
@media (max-width:600px){.year-hud{display:none}}
/* ============================================================
   CARD DRILL-DOWN · tilt, spotlight, drawer
   ============================================================ */
@property --spin{syntax:"<angle>";inherits:false;initial-value:0deg}

.card-more{
  appearance:none;align-self:flex-start;margin-top:.8rem;padding:.34rem .64rem;
  border:1px solid var(--line);border-radius:999px;background:transparent;color:var(--muted);
  font-family:var(--font-mono);font-size:.58rem;letter-spacing:.12em;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.card-more span{display:inline-block;margin-left:.2rem;transition:transform .2s}
.card-more:hover,.card-more:focus-visible{
  color:var(--cyan);border-color:var(--line2);background:color-mix(in srgb,var(--cyan) 8%,transparent);
}
.card-more:hover span{transform:translateX(3px)}
.mcard[data-card]{min-height:342px;cursor:pointer}
.team[data-card],.person[data-card]{cursor:pointer}

[data-tilt]{
  --rx:0deg;--ry:0deg;--ty:0px;--mx:50%;--my:50%;
  transform:perspective(1000px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(var(--ty));
  transform-style:preserve-3d;
  transition:transform .45s cubic-bezier(.2,.8,.2,1),border-color .3s,background .3s;
  will-change:transform;
}
.mcard[data-tilt]:hover,.team[data-tilt]:hover,.person[data-tilt]:hover{
  --ty:-4px;
  transform:perspective(1000px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(var(--ty));
}
.mcard[data-tilt]::before{
  background:radial-gradient(260px circle at var(--mx) var(--my),color-mix(in srgb,var(--cyan) 15%,transparent),transparent 70%);
}
.team[data-tilt],.person[data-tilt]{overflow:hidden}
.team[data-tilt]::before,.person[data-tilt]::before{
  content:"";position:absolute;inset:0;pointer-events:none;border-radius:inherit;opacity:0;
  background:radial-gradient(280px circle at var(--mx) var(--my),color-mix(in srgb,var(--cyan) 14%,transparent),transparent 70%);
  transition:opacity .35s;
}
.team[data-tilt]:hover::before,.person[data-tilt]:hover::before{opacity:1}
[data-tilt]::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  padding:1px;
  background:conic-gradient(from var(--spin),transparent 0deg,transparent 248deg,
    color-mix(in srgb,var(--cyan) 85%,transparent) 318deg,transparent 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  transition:opacity .3s;
}
[data-tilt]:hover::after,[data-tilt]:focus-within::after{opacity:.9;animation:cardSpin 4.6s linear infinite}
@keyframes cardSpin{to{--spin:360deg}}
[data-tilt] .mglyph{transform:translateZ(26px);transition:transform .5s cubic-bezier(.2,.8,.2,1),filter .5s,color .3s}
[data-tilt]:hover .mglyph{color:var(--amber);filter:drop-shadow(0 0 14px var(--glow))}

/* drawer shell */
.drawer-backdrop{
  position:fixed;inset:0;z-index:90;background:rgba(2,4,8,.6);
  -webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px);
  opacity:0;pointer-events:none;transition:opacity .32s;
}
.drawer-backdrop.open{opacity:1;pointer-events:auto}
.drawer{
  --accent:var(--cyan);
  position:fixed;top:0;right:0;bottom:0;z-index:91;width:min(540px,100%);
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,color-mix(in srgb,var(--bg2) 97%,transparent),var(--bg2));
  border-left:1px solid var(--line2);box-shadow:-40px 0 120px rgba(0,0,0,.5);
  transform:translate3d(102%,0,0);transition:transform .42s cubic-bezier(.2,.8,.2,1);
}
.drawer.open{transform:none}
html.drawer-open,body.drawer-open{overflow:hidden}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 22px;border-bottom:1px solid var(--line);flex:none;
}
.drawer-count{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.14em;color:var(--accent)}
.drawer-close{
  flex:none;width:34px;height:34px;border-radius:50%;border:1px solid var(--line2);
  background:transparent;color:var(--fg2);cursor:pointer;font-size:.78rem;line-height:1;
  transition:color .2s,border-color .2s,background .2s;
}
.drawer-close:hover{color:var(--accent);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,transparent)}
.drawer-body{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:clamp(22px,4vw,34px)}
.drawer-foot{display:flex;gap:10px;flex:none;padding:14px 22px calc(14px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line)}
.drawer-foot button{
  flex:1;padding:.56rem .8rem;border:1px solid var(--line);border-radius:10px;background:transparent;
  color:var(--fg2);font-family:var(--font-mono);font-size:.64rem;letter-spacing:.08em;cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.drawer-foot button:hover:not(:disabled){color:var(--accent);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,transparent)}
.drawer-foot button:disabled{opacity:.32;cursor:default}

/* drawer content */
.cd-kicker{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.cd-title{margin:.5rem 0 0;font-size:clamp(1.7rem,1.4rem + 1.4vw,2.25rem);letter-spacing:-.02em;line-height:1.14}
.cd-title span{display:block;margin-top:.4rem;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.08em;color:var(--muted);font-weight:400}
.cd-lede{margin:1rem 0 0;font-size:.94rem;line-height:1.86;color:var(--fg2)}
.cd-stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:1.4rem 0 0;
  background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.cd-stats>div{background:var(--surface);padding:12px 14px;min-width:0}
.cd-stats dt{font-family:var(--font-mono);font-size:.55rem;letter-spacing:.12em;color:var(--muted)}
.cd-stats dd{margin:.3rem 0 0;font-size:.82rem;line-height:1.55;color:var(--fg)}
.cd-sec{margin-top:1.55rem}
.cd-sec h3{display:flex;align-items:center;gap:.6rem;font-size:.82rem;letter-spacing:.04em;color:var(--fg)}
.cd-sec h3::before{content:"";flex:none;width:14px;height:1px;background:var(--accent);box-shadow:0 0 8px color-mix(in srgb,var(--accent) 50%,transparent)}
.cd-sec p{margin:.55rem 0 0;font-size:.86rem;line-height:1.86;color:var(--fg2)}
.cd-sec ul{margin:.55rem 0 0;padding-left:1.1rem;font-size:.84rem;line-height:1.8;color:var(--fg2)}
.cd-sec li{margin:.28rem 0}
.cd-sec li b{color:var(--fg)}
.cd-related p{margin-top:.6rem;font-size:.84rem}
.cd-related a{color:var(--accent);text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--accent) 35%,transparent);margin-right:.9rem;white-space:nowrap}
.cd-related a:hover{border-bottom-color:var(--accent)}
.cd-note{margin:1.7rem 0 0;padding-top:.8rem;border-top:1px solid var(--line);font-size:.69rem;line-height:1.65;color:var(--muted)}

/* theme scenes behind page heroes */
.page-hero{isolation:isolate}
.hero-scene{
  position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.95;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 40%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 40%,#000 100%);
}
.page-hero .wrap{z-index:2}
:root[data-theme="light"] .hero-scene{opacity:.6;filter:contrast(1.15)}

/* entrance upgrade, with tilt cards keeping their transform */
html.js-motion .reveal{
  opacity:0;transform:translateY(24px) scale(.985);filter:blur(4px);
  transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1),
    filter .7s cubic-bezier(.2,.7,.2,1);
  transition-delay:var(--d,0s);
}
html.js-motion .reveal.in{opacity:1;transform:none;filter:none}
html.js-motion .reveal[data-tilt]{
  filter:blur(3px);
  transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateY(var(--ty,0px));
  transition:opacity .7s cubic-bezier(.2,.7,.2,1),filter .7s cubic-bezier(.2,.7,.2,1),
    transform .45s cubic-bezier(.2,.8,.2,1),border-color .3s,background .3s;
  transition-delay:var(--d,0s);
}
html.js-motion .reveal[data-tilt].in{
  opacity:1;filter:none;
  transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateY(var(--ty,0px));
}

@media (max-height:720px){
  .mcard[data-card]{min-height:292px}
  .mcard[data-card] .mglyph{margin-top:14px;margin-bottom:10px}
}
@media (max-width:600px){
  .drawer{width:100%;border-left:0}
  .drawer-body{padding:20px 18px}
  .drawer-foot{padding:12px 18px calc(12px + env(safe-area-inset-bottom,0px))}
  .cd-stats{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  .chapter:hover,.nextprev a:hover{transform:none}
  [data-tilt]{transform:none!important;transition:none!important}
  .drawer,.drawer-backdrop{transition:none!important}
  [data-tilt]::after{animation:none!important}
  html.js-motion .reveal,html.js-motion .reveal.in{filter:none}
}