/* Sign-in page layout: nav, hero (sign in + the book that becomes an ebook, in 3D), How it works, Outputs (3D deck),
   Features (tabs), Contact (3D mark). Components (form, story, tiles) are in login.css. */
body.lg{--page:1240px;--gut:clamp(16px,4vw,48px);--line:rgba(255,255,255,.09);--card:rgba(10,18,38,.78);--soft:#b4bfd3;--vio:#a77bf0;--blue:#5fb2ff;--green:#34c27a}
html:has(body.lg){scroll-behavior:smooth;scroll-padding-top:76px}
body.lg main,body.lg .lg-end{position:relative;z-index:1}
body.lg main{overflow-x:hidden;overflow-x:clip}
body.lg a{color:inherit}
body.lg :focus-visible{outline:2px solid var(--tag);outline-offset:3px}

/* ---------------------------------------------------------------- nav */
.nav{position:sticky;top:0;z-index:30;height:64px;display:flex;align-items:center;gap:28px;padding:0 var(--gut);transition:background .3s,border-color .3s,box-shadow .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(8,14,30,.84);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.nav-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:#fff;text-decoration:none;white-space:nowrap}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{padding:8px 12px;border-radius:8px;color:#c3cce0;text-decoration:none;font-size:15px;transition:color .2s,background .2s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.on{color:#fff;box-shadow:inset 0 -2px 0 var(--tag)}
.nav-in{height:40px;display:inline-flex;align-items:center;padding:0 18px;border-radius:9px;background:var(--tag);color:#172033!important;font-weight:700;text-decoration:none;white-space:nowrap}
.nav-in:hover{filter:brightness(1.07)}

/* ---------------------------------------------------------------- hero */
.hero{max-width:var(--page);margin:0 auto;padding:clamp(12px,3vh,36px) var(--gut) clamp(40px,7vh,84px);min-height:calc(100vh - 64px);
  display:grid;grid-template-columns:minmax(0,500px) minmax(0,1fr);gap:clamp(24px,4vw,64px);align-items:center}
.hero-h{font-family:var(--serif);font-weight:600;font-size:clamp(38px,4.4vw,62px);line-height:1.04;letter-spacing:-.018em;color:#f4f6fb;margin:0;text-wrap:balance;position:relative}
.hero-tag{display:inline-block;vertical-align:.55em;margin-right:.28em;padding:.16em .34em;border-radius:.16em;background:var(--tag);color:#3b1170;font:800 .26em/1 var(--sans);letter-spacing:.02em;
  transform-origin:100% 60%;animation:tagIn .55s cubic-bezier(.2,.9,.25,1.4) .35s both}
.hero-pil{display:inline-block;margin-left:.12em;color:var(--vio);font:800 .62em/1 var(--sans);animation:tagIn .55s cubic-bezier(.2,.9,.25,1.4) 1.05s both}
@keyframes tagIn{from{opacity:0;transform:scale(.3) translateY(.3em)}to{opacity:1;transform:none}}
.hero-t{background:linear-gradient(90deg,#f4f6fb 0 45%,#ffe596 50%,#f4f6fb 55% 100%);background-size:260% 100%;background-position:100% 0;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sweep 2.2s ease-out .6s 1 both}
@keyframes sweep{from{background-position:100% 0}to{background-position:0 0}}
.hero-lede{font-size:18px;line-height:1.55;color:var(--soft);margin:18px 0 26px;max-width:46ch}
.hero-foot{margin:14px 2px 0;font-size:14px;color:#8a97b3}

/* the sign-in card */
.lg-form{position:relative;padding:22px 24px 22px;border-radius:16px;background:rgba(8,14,30,.82);box-shadow:0 30px 70px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.05)}
.lg-form h2{font-family:var(--serif);font-weight:600;font-size:24px;line-height:1.2;margin:0 0 4px;color:#fff;outline:none}
.lg-form h2:focus-visible{outline:2px solid var(--tag)}
.lg-fields{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.lg-form label{margin:12px 0 6px}
.lg-go{margin-top:18px}
.lg-note{margin:12px 0 0}
.lg-form .lg-msg{margin:10px 0 0}
.lg-form.flash{animation:flash 1.1s ease-out}
@keyframes flash{0%{box-shadow:0 0 0 0 rgba(242,194,48,.55),0 30px 70px rgba(0,0,0,.42)}100%{box-shadow:0 0 0 18px rgba(242,194,48,0),0 30px 70px rgba(0,0,0,.42)}}

/* ---------------------------------------------------------------- hero 3D: the printed book becomes an ebook */
.hero-3d{position:relative;width:100%;height:560px;min-width:0}
.h3d{position:absolute;left:0;top:0;width:640px;height:560px;transform-origin:0 0;perspective:1500px;perspective-origin:48% 38%}
.rig{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(var(--rx,-12deg)) rotateY(var(--ry,-20deg));will-change:transform}
.rig *{transform-style:preserve-3d}
.floor{position:absolute;left:90px;top:432px;width:500px;height:220px;transform-origin:50% 0;transform:rotateX(90deg);
  background:radial-gradient(closest-side,rgba(0,0,0,.55),rgba(0,0,0,0));transform-style:flat}
/* book: 200 x 270, 30 thick */
.bk{position:absolute;left:214px;top:142px;width:200px;height:270px}
.bk-back,.cv-out,.cv-in{position:absolute;inset:0;border-radius:2px 5px 5px 2px}
.bk-back{transform:translateZ(-15px);background:#0b2c40}
.bk-spine{position:absolute;left:-15px;top:0;width:30px;height:270px;transform:rotateY(-90deg);
  background:linear-gradient(90deg,#0a2a3d,#16506e 40%,#0d3a53);display:flex;align-items:center;justify-content:center}
.bk-spine span{writing-mode:vertical-rl;transform:rotate(180deg);font:600 10px var(--serif);color:#e7d28a;letter-spacing:.05em}
.bk-e{position:absolute;background:repeating-linear-gradient(90deg,#f4f1ea 0 1px,#dcd6c8 1px 2px)}
.bk-top{left:2px;top:-10px;width:192px;height:26px;transform:rotateX(90deg)}
.bk-bot{left:2px;top:254px;width:192px;height:26px;transform:rotateX(-90deg);filter:brightness(.7)}
.bk-fore{left:181px;top:3px;width:26px;height:264px;transform:rotateY(90deg);background:repeating-linear-gradient(90deg,#efebe2 0 1px,#d4cdbd 1px 2px);filter:brightness(.92)}
.bk-page{position:absolute;left:2px;top:3px;width:192px;height:264px}
.bk-page{transform:translateZ(13px);background:linear-gradient(90deg,#e9e4d8,#fbfaf7 9%,#fbfaf7);color:#20242c;padding:14px 13px 0 15px;font:400 6.9px/1.45 var(--serif);overflow:hidden;box-sizing:border-box;transform-style:flat}
.pp-rh{display:flex;justify-content:space-between;font:400 5.6px var(--serif);color:#6b7180;margin-bottom:9px;font-style:italic}
.pp-h{font:600 10.5px/1.2 var(--serif);margin:0 0 6px}
.bk-page p{margin:0 0 5px;text-align:justify;hyphens:auto}
.bk-page p+p{text-indent:1em}
.pp-n{position:absolute;left:15px;right:13px;bottom:14px;font-size:5.6px;color:#4b5160;border-top:.5px solid #b8b2a3;padding-top:3px;text-indent:0!important}
.bk-page cite{font-style:italic}
.bk-page .mk{display:inline-block;font:800 4.6px/1 var(--sans);background:#ffe41a;color:#3b1170;padding:1px 1.6px;border-radius:1px;margin-right:2px;vertical-align:1px;
  opacity:0;transform:scale(.2);transition:opacity .3s,transform .4s cubic-bezier(.2,.9,.3,1.5)}
.bk-page .pl{font:800 6.2px var(--sans);color:#7a3fd2;font-style:normal;margin-left:1px;opacity:0;transition:opacity .3s}
.pp-fn{color:#1f6fdf}
.pp-scan{position:absolute;left:0;right:0;top:-30%;height:30%;background:linear-gradient(180deg,rgba(95,178,255,0),rgba(95,178,255,.22),rgba(95,178,255,0));opacity:0}
.bk-cover{position:absolute;inset:0;transform-origin:0 50%;transform:translateZ(15px) rotateY(var(--open,0deg));transition:transform 1.5s cubic-bezier(.6,.04,.22,1)}
.cv-out{backface-visibility:hidden;-webkit-backface-visibility:hidden;background:linear-gradient(155deg,#1f6b8a 0%,#124660 48%,#0a2b3e 100%);
  box-shadow:inset 3px 0 0 rgba(0,0,0,.25),inset -1px 0 0 rgba(255,255,255,.08);display:flex;flex-direction:column;padding:26px 18px 16px 22px;box-sizing:border-box;color:#f6f1df}
.cv-rule{width:38px;height:2px;background:#e7c35a;margin-bottom:14px}
.cv-out b{font:600 22px/1.12 var(--serif);letter-spacing:-.01em}
.cv-by{font:400 9px/1.4 var(--serif);font-style:italic;margin-top:8px;color:#cfe0e8}
.cv-pub{margin-top:auto;font:700 7.5px var(--sans);letter-spacing:.06em;color:#9fc3d4}
.cv-in{transform:rotateY(180deg);backface-visibility:hidden;-webkit-backface-visibility:hidden;background:linear-gradient(270deg,#ddd6c6,#f3efe5 18%);display:flex;align-items:center;justify-content:center}
.cv-in span{font:800 20px var(--sans);color:rgba(32,36,44,.18);letter-spacing:.08em}
/* the e-reader: 172 x 270, 10 thick */
.rd3{position:absolute;left:446px;top:136px;width:172px;height:270px;transform:translateZ(40px) rotateY(-18deg)}
.rd-s,.rd-back{position:absolute;background:#2a3346}
.rd-l{left:-5px;top:10px;width:10px;height:250px;transform:rotateY(-90deg)}
.rd-r{left:167px;top:10px;width:10px;height:250px;transform:rotateY(90deg);background:#1b2231}
.rd-t{left:10px;top:-5px;width:152px;height:10px;transform:rotateX(90deg);background:#3a4560}
.rd-b{left:10px;top:265px;width:152px;height:10px;transform:rotateX(-90deg);background:#141a26}
.rd-back{inset:0;border-radius:16px;transform:translateZ(-5px) rotateY(180deg);background:#1a2130}
.rd-face{position:absolute;inset:0;border-radius:16px;transform:translateZ(5px);background:linear-gradient(160deg,#323c52,#151b28);padding:12px 10px 20px;box-sizing:border-box;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.rd-scr{position:relative;height:100%;border-radius:6px;background:#fbfaf7;color:#1d2330;padding:9px 10px;box-sizing:border-box;overflow:hidden;font:400 8px/1.5 var(--serif);transform-style:flat}
.rd-bar{display:flex;justify-content:space-between;font:700 6px var(--sans);color:#8b93a3;margin-bottom:8px}
.rd-scr h4{font:600 11px/1.2 var(--serif);margin:0 0 6px}
.rd-scr p{margin:0 0 5px}
.rd-scr a{color:#1f6fdf;font-size:6px;vertical-align:super;margin-left:1px}
.rd-scr .rl-fn{font-size:6.6px;color:#4b5160;border-top:.5px solid #c8c2b3;padding-top:4px;margin-top:8px}
.rl{opacity:0;transform:translateY(5px);transition:opacity .5s,transform .6s cubic-bezier(.2,.8,.2,1);transition-delay:calc(var(--k) * 160ms)}
.rd-ok{position:absolute;left:9px;right:9px;bottom:9px;padding:4px 6px;border-radius:4px;background:#e1f6ea;color:#11723f;font:700 7px var(--sans);text-align:center;
  opacity:0;transform:translateY(6px) scale(.96);transition:opacity .4s,transform .5s cubic-bezier(.2,.9,.3,1.3)}
/* pages flying from the book into the ebook */
.hfly{position:absolute;left:246px;top:176px;width:112px;height:150px;border-radius:2px;background:#fbfaf7;box-shadow:0 10px 26px rgba(0,0,0,.35);opacity:0;padding:16px 12px;box-sizing:border-box;transform-style:flat}
.hfly i{display:block;height:3px;border-radius:1px;background:#c9c4b7;margin-bottom:9px}.hfly i:first-child{width:60%;height:5px;background:#9aa0ad}.hfly i:nth-child(4){width:80%}
@keyframes fly{0%{opacity:0;transform:translate3d(0,0,14px) rotateY(0) rotateX(0) scale(1)}
  10%{opacity:1}
  45%{transform:translate3d(96px,-110px,170px) rotateY(-28deg) rotateX(14deg) scale(.95)}
  85%{opacity:1}
  100%{opacity:0;transform:translate3d(214px,-14px,52px) rotateY(-18deg) rotateX(0) scale(.82)}}
/* tags in the air */
.chip{position:absolute;left:0;top:0;padding:4px 8px;border-radius:6px;font:700 11.5px var(--mono);white-space:nowrap;background:rgba(8,14,30,.9);border:1px solid currentColor;
  box-shadow:0 8px 22px rgba(0,0,0,.35);opacity:0;transform:translate3d(var(--x),var(--y),var(--z));transition:opacity .6s;transition-delay:var(--d,0s);transform-style:flat}
.chip.c1{--x:150px;--y:118px;--z:120px;color:#ffe41a;--d:.0s}
.chip.c2{--x:118px;--y:258px;--z:170px;color:#ffe41a;--d:.15s}
.chip.c3{--x:420px;--y:96px;--z:150px;color:#c3a3ff;--d:.3s}
.chip.c4{--x:392px;--y:372px;--z:200px;color:#5eead4;--d:.45s}
.chip.c5{--x:250px;--y:452px;--z:110px;color:#8cc8ff;--d:.6s}
.chip.c6{--x:520px;--y:430px;--z:90px;color:#86efac;--d:.75s}
@keyframes bob{50%{transform:translate3d(var(--x),calc(var(--y) - 9px),var(--z))}}
/* the timeline (classes on .h3d, set by login-site.js) */
.h3d.s-open .bk-cover{--open:-166deg}
.h3d.s-scan .pp-scan{animation:scan 1.3s ease-in-out forwards}
@keyframes scan{0%{opacity:0;top:-30%}15%{opacity:1}85%{opacity:1}100%{opacity:0;top:100%}}
.h3d.s-tags .bk-page .mk{opacity:1;transform:none}
.h3d.s-tags .bk-page .pl{opacity:1}
.h3d.s-tags .bk-page p:nth-of-type(1) .mk{transition-delay:.25s}.h3d.s-tags .bk-page p:nth-of-type(2) .mk{transition-delay:.45s}.h3d.s-tags .bk-page .pp-n .mk{transition-delay:.65s}
.h3d.s-tags .chip{opacity:1;animation:bob 7s ease-in-out infinite}
.h3d.s-tags .chip.c2{animation-duration:8.5s}.h3d.s-tags .chip.c3{animation-duration:6.3s}.h3d.s-tags .chip.c4{animation-duration:9s}.h3d.s-tags .chip.c5{animation-duration:7.6s}
.h3d.s-fly1 .f1{animation:fly 1.6s cubic-bezier(.5,0,.3,1) forwards}
.h3d.s-fly2 .f2{animation:fly 1.6s cubic-bezier(.5,0,.3,1) forwards}
.h3d.s-r1 .ra,.h3d.s-r2 .rb{opacity:1;transform:none}
.h3d.s-ok .rd-ok{opacity:1;transform:none}
.h3d.still .chip{animation:none}

/* ---------------------------------------------------------------- sections */
.sec{max-width:var(--page);margin:0 auto;padding:clamp(72px,11vh,132px) var(--gut) 0}
.sec-head{max-width:760px;margin-bottom:28px}
.sec h2{font-family:var(--serif);font-weight:600;font-size:clamp(28px,3vw,42px);line-height:1.12;letter-spacing:-.012em;color:#f4f6fb;margin:0 0 10px;text-wrap:balance}
.sec-head p{margin:0;color:var(--soft);font-size:17px;max-width:62ch}

/* How it works: the story stands up in 3D the first time it is seen */
.th-frame{perspective:1800px;perspective-origin:50% 0}
.th-box{max-width:none;padding:22px 24px 18px;border-radius:20px;background:linear-gradient(180deg,rgba(14,25,50,.72),rgba(9,16,34,.8));border:1px solid var(--line);
  box-shadow:0 40px 90px rgba(0,0,0,.4);transform-origin:50% 0;transition:transform 1.3s cubic-bezier(.2,.7,.2,1),opacity 1s}
.th-frame:not(.in) .th-box{transform:rotateX(16deg) translateY(30px) scale(.96);opacity:.55}

/* Outputs: a 3D deck of the four EPUBs */
.outputs-sec{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:clamp(24px,5vw,72px);align-items:center}
.outs-copy p{color:var(--soft);font-size:17px;margin:0 0 18px;max-width:44ch}
.checks{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:10px}
.checks li{position:relative;padding-left:28px;color:#dfe5f1}
.checks li::before{content:"";position:absolute;left:2px;top:.32em;width:14px;height:8px;border-left:2.5px solid var(--green);border-bottom:2.5px solid var(--green);transform:rotate(-45deg)}
.deck-ctl{display:flex;align-items:center;gap:10px}
.deck-b{height:40px;padding:0 16px;border-radius:9px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.03);color:#fff;font:700 15px var(--sans);cursor:pointer}
.deck-b:hover{background:rgba(255,255,255,.08)}
.deck-n{margin-left:6px;color:#8a97b3;font-size:14px;font-variant-numeric:tabular-nums}
.deck-stage{position:relative;height:440px;perspective:1400px;perspective-origin:30% 40%;touch-action:pan-y}
.deck{position:absolute;left:8%;top:44px;width:300px;height:360px;transform-style:preserve-3d;transform:rotateX(6deg) rotateY(var(--dy,-6deg));transition:transform .6s}
.ep{position:absolute;inset:0;border-radius:18px;padding:16px 18px;box-sizing:border-box;display:flex;flex-direction:column;gap:8px;cursor:pointer;
  background:linear-gradient(160deg,var(--c1),var(--c2));color:#fff;box-shadow:0 30px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.15);
  transition:transform .9s cubic-bezier(.2,.75,.2,1),opacity .9s,filter .9s;transform-origin:50% 100%;backface-visibility:hidden}
.ep.e2{--c1:#2b5fa8;--c2:#173563}.ep.e3{--c1:#6a44c4;--c2:#35206f}.ep.ef{--c1:#127a73;--c2:#0b3f45}.ep.ea{--c1:#b8861a;--c2:#6b4708}
.ep[data-p="0"]{transform:translate3d(0,0,0) rotateY(0)}
.ep[data-p="1"]{transform:translate3d(70px,-24px,-130px) rotateY(-10deg);filter:brightness(.78)}
.ep[data-p="2"]{transform:translate3d(140px,-48px,-260px) rotateY(-16deg);filter:brightness(.6)}
.ep[data-p="3"]{transform:translate3d(210px,-72px,-390px) rotateY(-20deg);filter:brightness(.45)}
.ep.leave{animation:leave .9s cubic-bezier(.5,0,.3,1)}
@keyframes leave{0%{transform:translate3d(0,0,0)}40%{transform:translate3d(-220px,30px,120px) rotateY(28deg)}100%{transform:translate3d(210px,-72px,-390px) rotateY(-20deg)}}
.ep-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.ep-top b{font:600 22px/1.15 var(--serif)}
.ep-v{font-size:12.5px;color:rgba(255,255,255,.72);white-space:nowrap}
.ep-pg{flex:1;margin:6px 0 4px;border-radius:10px;background:#fbfaf7;padding:16px 16px;box-sizing:border-box;box-shadow:inset 0 0 0 1px rgba(0,0,0,.05)}
.ep-pg i{display:block;height:5px;border-radius:2px;background:#cfd3dc;margin-bottom:11px}
.ep-pg i:first-child{width:56%;height:8px;background:#8d95a6;margin-bottom:14px}.ep-pg i:nth-child(4){width:72%}.ep-pg i:nth-child(7){width:48%}
.ep-pg.fx{background:linear-gradient(#fbfaf7,#fbfaf7) padding-box;display:grid;grid-template-columns:1fr 1fr;gap:0 10px;align-content:start}
.ep-pg.fx i:first-child{grid-column:span 2}
.ep p{margin:0;font-size:14px;line-height:1.45;color:rgba(255,255,255,.88)}
.ep-ok{align-self:flex-start;font:700 12.5px var(--sans);padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.14);color:#c9ffe0}
.ep-ok.ace{margin-top:-4px}
.ep-fn{font:600 12px var(--mono);color:rgba(255,255,255,.62)}

/* Features: tabs and panels (the tiles themselves are in login.css) */
.ftabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 22px}
.ftabs button{height:42px;padding:0 18px;border-radius:21px;border:1px solid rgba(255,255,255,.16);background:transparent;color:#c3cce0;font:700 15px var(--sans);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.ftabs button:hover{color:#fff;border-color:rgba(255,255,255,.35)}
.ftabs button[aria-selected=true]{background:#f4f6fb;color:#172033;border-color:#f4f6fb}
.feat .fpanel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;perspective:1600px}
.feat .fpanel[hidden]{display:none}
.feat .tile{grid-column:span 1;min-height:300px}
.feat .tile.sp2{grid-column:span 2}.feat .tile.sp3{grid-column:span 3}.feat .tile.tall{grid-row:span 2}
.feat .tile{transform:translateY(26px) rotateX(10deg);transform-origin:50% 100%}
.feat .tile.seen{transform:rotateX(var(--tx,0deg)) rotateY(var(--ty,0deg));transition:opacity .7s cubic-bezier(.2,.75,.2,1),transform .7s cubic-bezier(.2,.75,.2,1),border-color .3s;transition-delay:calc(var(--i,0) * 70ms)}
.feat .tile.seen.tilt{transition:transform .18s ease-out,border-color .3s;transition-delay:0s}
.feat .tile.sp3 .art{height:150px}
/* roles tile */
.a-roles{display:flex;flex-direction:column;justify-content:center;gap:14px}
.rl-lane{position:relative;display:flex;justify-content:space-between;align-items:center;padding:0 6%;height:56px}
.rl-lane::before{content:"";position:absolute;left:12%;right:12%;top:50%;border-top:2px dashed rgba(255,255,255,.18)}
.rl-av{position:relative;z-index:1;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font:800 14px var(--sans);background:#f6f7fa;color:#172033}
.rl-av:nth-child(2){background:var(--tag)}.rl-av:nth-child(3){background:#c3a3ff}
.rl-tok{position:absolute;top:50%;left:12%;width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:3px;background:var(--blue);box-shadow:0 0 16px var(--blue);animation:tok 5s ease-in-out infinite}
@keyframes tok{0%,8%{left:12%}35%,48%{left:50%}75%,100%{left:88%}}
.rl-notes{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.rl-notes span{font-size:13px;padding:4px 9px;border-radius:6px;background:rgba(255,255,255,.07);color:#dfe5f1;opacity:0;animation:note 5s ease-in-out infinite}
.rl-notes .rl-n2{animation-delay:.9s}.rl-notes .rl-st{animation-delay:1.8s;background:rgba(52,194,122,.18);color:#86efac;font-weight:700}
@keyframes note{0%,20%{opacity:0;transform:translateY(6px)}30%,85%{opacity:1;transform:none}100%{opacity:0}}
/* every feature in one list */
.all-list{margin-top:26px;border-radius:14px;padding:16px 20px;border:1px solid var(--line);background:rgba(10,19,38,.7)}
.all-list summary{cursor:pointer;font-weight:700;font-size:16px;color:#eef1f7}
.all-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:8px 36px;margin-top:14px}
.all-grid h4{font-family:var(--serif);font-weight:600;font-size:18px;margin:14px 0 6px;color:#f1f4fa}
.all-grid ul{margin:0;padding-left:18px;color:#cfd6e3;font-size:15px}.all-grid li{margin:4px 0}

/* Contact: the DZ mark as a cube */
.made-cta{display:flex;flex-wrap:wrap;gap:10px}
.made-cta .mail{display:inline-flex;align-items:center;height:44px;padding:0 18px;border-radius:9px;background:var(--tag);color:#172033;font-weight:700;text-decoration:none}
.made-cta .mail:hover{filter:brightness(1.06)}
.made-cta .copy{height:44px;padding:0 16px;border-radius:9px;border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;font:700 15px var(--sans);cursor:pointer;min-width:140px}
.made-cta .copy:hover{background:rgba(255,255,255,.08)}
.made-cta .copy.done{border-color:var(--green);color:#5fe0a0}
.contact{display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:center}
.contact .made-by{margin:0;font-size:18px;color:#e8ecf4}.contact .made-by b{color:#ffd45e}
.contact .made-q{margin:8px 0 18px;color:var(--soft);max-width:52ch}
.cube-box{width:200px;height:200px;perspective:900px;display:flex;align-items:center;justify-content:center}
.cube{position:relative;width:120px;height:120px;transform-style:preserve-3d;transform:rotateX(var(--cx,-18deg)) rotateY(var(--cy,32deg))}
.cf{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:800 30px var(--sans);font-style:normal;border-radius:14px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18),inset 0 -20px 40px rgba(0,0,0,.18);backface-visibility:hidden}
.f-front{transform:translateZ(60px);background:linear-gradient(150deg,#3f86f0,#1d4fb0);color:#fff}
.f-back{transform:rotateY(180deg) translateZ(60px);background:linear-gradient(150deg,#f6cf4a,#c8961a);color:#3b2a05;font-size:24px}
.f-right{transform:rotateY(90deg) translateZ(60px);background:#fbfaf7;color:#20242c;font-size:24px}
.f-left{transform:rotateY(-90deg) translateZ(60px);background:linear-gradient(150deg,#a77bf0,#6a3fc4);color:#fff;font-size:40px}
.f-top{transform:rotateX(90deg) translateZ(60px);background:#26324a}
.f-bot{transform:rotateX(-90deg) translateZ(60px);background:#0e1830}
.cube-box::after{content:"";position:absolute;width:160px;height:30px;margin-top:190px;border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.5),transparent);pointer-events:none}
.cube-box{position:relative}

.lg-end{max-width:var(--page);margin:clamp(72px,10vh,120px) auto 0;padding:18px var(--gut) 28px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
  border-top:1px solid var(--line);font-size:13.5px;color:#7d8aa3}

/* ---------------------------------------------------------------- smaller screens */
@media (max-width:980px){
  .th-caption{grid-template-columns:1fr;grid-template-areas:"rail" "ctl" "text" "stages"}
  .th-lines{grid-template-columns:1fr}
  .stages{grid-template-columns:repeat(8,minmax(0,1fr));row-gap:10px}
  .th-text{min-height:0}
}
@media (max-width:1080px){.nav-links a{padding:8px 9px;font-size:14.5px}}
@media (max-width:920px){
  .hero{grid-template-columns:1fr;min-height:0;padding-top:20px}
  .hero-3d{max-width:640px;margin:0 auto}
  .outputs-sec{grid-template-columns:1fr}
  .deck-stage{height:420px}
  .feat .fpanel{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feat .tile.sp3{grid-column:span 2}.feat .tile.tall{grid-row:auto}
}
@media (max-width:860px){.nav-links{display:none}.nav-in{margin-left:auto}}
@media (max-width:600px){
  .nav{gap:12px}.nav-brand span:last-child{font-size:15px}
  .hero-lede{font-size:16.5px}
  .lg-fields{grid-template-columns:1fr}
  .lg-form{padding:18px 16px}
  .th-box{padding:14px 12px 12px;border-radius:14px}
  .deck{left:4%;width:260px;height:330px}.deck-stage{height:400px}
  .ep[data-p="1"]{transform:translate3d(36px,-20px,-130px) rotateY(-10deg)}.ep[data-p="2"]{transform:translate3d(72px,-40px,-260px) rotateY(-16deg)}.ep[data-p="3"]{transform:translate3d(108px,-60px,-390px) rotateY(-20deg)}
  .feat .fpanel{grid-template-columns:1fr}
  .feat .tile,.feat .tile.sp2,.feat .tile.sp3{grid-column:span 1}
  .ftabs{flex-wrap:nowrap;overflow-x:auto;margin-inline:calc(var(--gut) * -1);padding:0 var(--gut) 4px;scrollbar-width:none}
  .ftabs button{flex:none}
  .contact{grid-template-columns:1fr}.cube-box{width:160px;height:170px}
}
body.lite .nav.solid{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(8,14,30,.96)}
body.lite .h3d .chip{animation:none!important}
@media (prefers-reduced-motion:reduce){
  html:has(body.lg){scroll-behavior:auto}
  .hero-tag,.hero-pil,.hero-t,.h3d *,.rl-tok,.rl-notes span{animation:none!important;transition:none!important}
  .hero-t{color:#f4f6fb;background:none}
  .rl-notes span{opacity:1}
  .th-frame .th-box,.th-frame:not(.in) .th-box{transform:none;opacity:1;transition:none}
  .feat .tile,.feat .tile.seen{transform:none;transition:none}
  .ep,.deck{transition:none}
}