@font-face{font-family:'Big Shoulders Display';font-style:normal;font-weight:800;font-display:swap;src:url(/fonts/big-shoulders-display-800.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans';font-style:normal;font-weight:400 600;font-display:swap;src:url(/fonts/ibm-plex-sans-var.woff2) format('woff2')}

:root{
  --print:#173b66;
  --print-deep:#102c4e;
  --print-line:rgba(238,243,248,.08);
  --chalk:#eef3f8;
  --chalk-dim:#aec3d8;
  --signal:#ff7a1a;
  --signal-hi:#ff8f3d;
  --hivis:#f2d21b;
  --brick:#c4553a;
  --rule:rgba(238,243,248,.22);
  --sign:'Big Shoulders Display','Arial Narrow',sans-serif;
  --doc:'IBM Plex Sans',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{background:var(--print-deep);-webkit-text-size-adjust:100%}
body{margin:0;color:var(--chalk);font:400 18px/1.62 var(--doc);
  background-color:var(--print);
  background-image:linear-gradient(var(--print-line) 1px,transparent 1px),linear-gradient(90deg,var(--print-line) 1px,transparent 1px);
  background-size:32px 32px}
img{max-width:100%;height:auto;display:block}
a{color:var(--chalk)}
:focus-visible{outline:3px solid var(--hivis);outline-offset:3px}
.site{width:min(1140px,100% - 32px);margin-inline:auto}

h1,h2{font-family:var(--sign);font-weight:800;letter-spacing:.01em;margin:0;color:#fff;line-height:.98}
h1{font-size:clamp(46px,7vw,86px)}
h2{font-size:clamp(34px,4.4vw,52px);margin-bottom:.4em}
h3{font:600 20px/1.3 var(--doc);color:#fff;margin:1.4em 0 .35em}
p{margin:0 0 1em}
.measure{max-width:64ch}

.cta{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 24px;background:var(--signal);color:#1a0e02;border:0;border-radius:4px;
  font:600 17px/1 var(--doc);text-decoration:none;cursor:pointer;transition:background .15s}
.cta:hover{background:var(--signal-hi)}
.cta--outline{background:transparent;color:var(--chalk);box-shadow:inset 0 0 0 2px var(--chalk)}
.cta--outline:hover{background:rgba(238,243,248,.08)}

/* header */
.hd{border-bottom:2px solid var(--rule);background:rgba(16,44,78,.85)}
.hd__in{display:flex;align-items:center;gap:22px;padding:12px 0}
.brand{display:flex;align-items:center;gap:10px;margin-right:auto;text-decoration:none}
.brand img{width:40px;height:40px;border-radius:8px}
.brand span{font:800 26px/1 var(--sign);color:#fff;letter-spacing:.02em}
.nav{display:flex;gap:22px}
.nav a{text-decoration:none;font-weight:600;font-size:16px}
.nav a:hover{color:var(--hivis)}
.menu-btn{display:none;background:none;border:2px solid var(--rule);color:var(--chalk);border-radius:4px;padding:8px 14px;font:600 15px var(--doc);cursor:pointer}

/* hero: builder left, headline right */
.hero{padding:48px 0 56px}
.hero__in{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:56px;align-items:center}
.hero__lede{font-size:20px;line-height:1.55;margin:20px 0 26px;max-width:32em}
.hero__acts{display:flex;flex-wrap:wrap;gap:14px}
.by{display:flex;align-items:center;gap:12px;margin-top:28px;font-size:15px;color:var(--chalk-dim)}
.by img{width:44px;height:44px;border-radius:50%;border:2px solid var(--chalk)}
.by b{color:var(--chalk);font-weight:600}

/* the bold element: tower builder */
.builder{background:var(--print-deep);border:2px solid var(--chalk);border-radius:6px;padding:22px;position:relative}
.builder::before{content:"";position:absolute;inset:6px;border:1px dashed var(--rule);border-radius:3px;pointer-events:none}
.builder__grid{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:20px;position:relative}
.builder h2{font-size:30px;margin-bottom:6px}
.builder__intro{font-size:15px;color:var(--chalk-dim);margin-bottom:14px}
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tool{background:transparent;color:var(--chalk);border:2px solid var(--rule);border-radius:4px;padding:9px 12px;font:600 15px var(--doc);cursor:pointer}
.tool:hover{border-color:var(--chalk)}
.tool--freeze{border-color:var(--hivis);color:var(--hivis)}
.tool--fall{border-color:var(--brick);color:#ffb3a3}
.tool:disabled{opacity:.35;cursor:not-allowed}
.readout{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;border-top:2px solid var(--rule);padding-top:12px}
.readout span{display:block;font-size:13px;color:var(--chalk-dim)}
.readout b{font:800 30px/1.05 var(--sign);color:#fff}
.readout .hot b{color:var(--hivis)}
.builder__msg{min-height:3em;margin:12px 0 0;font-size:15px;line-height:1.45}
.builder__note{font-size:13px;color:var(--chalk-dim);margin:8px 0 0}
.stack{display:flex;flex-direction:column-reverse;justify-content:flex-start;gap:3px;min-height:300px;border-bottom:4px solid var(--chalk);padding:0 10px;position:relative}
.floor{height:30px;border-radius:2px;display:grid;place-items:center;font:800 17px/1 var(--sign);color:#1b1b1b;background:#d9b98a;border:2px solid #7a5b34;animation:drop .3s ease-out both}
.floor--temple{background:#9ad1e8;border-color:#2c6f8c}
.floor--frozen{background:#d8f2ff;border-color:var(--hivis);box-shadow:0 0 0 2px var(--hivis)}
.stack.is-down .floor{background:#5a3b33;border-color:var(--brick);color:#ffb3a3;transform:rotate(6deg)}
.stack.is-down .floor:nth-child(even){transform:rotate(-8deg) translateX(8px)}
@keyframes drop{from{transform:translateY(-40px);opacity:0}to{transform:none;opacity:1}}
.crane{height:24px;border-top:3px solid var(--hivis);position:relative;margin-bottom:6px}
.crane::after{content:"";position:absolute;right:20%;top:0;width:2px;height:18px;background:var(--hivis)}

/* sheets: each content block reads like a drawing sheet */
.sheet{padding:56px 0;border-top:2px solid var(--rule)}
.sheet__in{position:relative}
.sheet__tag{position:absolute;right:0;top:-38px;font:600 13px/1 var(--doc);color:var(--chalk-dim);border:1px solid var(--rule);padding:6px 10px;background:var(--print)}

.spec{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 36px;margin:24px 0 0;max-width:960px}
.spec div{border-bottom:1px solid var(--rule);padding:12px 0}
.spec dt{font-size:14px;color:var(--chalk-dim)}
.spec dd{margin:2px 0 0;font-weight:600;font-size:18px;color:#fff}

.board{width:100%;border-collapse:collapse;margin-top:22px}
.board th,.board td{text-align:left;padding:18px 14px;border-bottom:1px solid var(--rule);vertical-align:middle}
.board thead th{font-size:14px;font-weight:600;color:var(--chalk-dim);padding-top:0;border-bottom:2px solid var(--chalk)}
.board .co{display:flex;align-items:center;gap:14px;font-weight:600;color:#fff}
.board .co img{width:60px;height:60px;border-radius:6px}
.board .amt{font:800 30px/1 var(--sign);color:#fff}
.board .first .amt{color:var(--hivis)}
.board ul{margin:0;padding-left:18px;font-size:15px;color:var(--chalk-dim)}
.board .go{text-align:right;white-space:nowrap}
.board .go small{display:block;margin-top:6px;font-size:12px;color:var(--chalk-dim)}
.small{font-size:15px;color:var(--chalk-dim)}

.legend{width:100%;max-width:760px;border-collapse:collapse;margin:18px 0;font-size:17px}
.legend th,.legend td{border:1px solid var(--rule);padding:10px 14px;text-align:left;vertical-align:top}
.legend thead th{background:var(--print-deep);font-weight:600;color:var(--chalk-dim);font-size:15px}
.legend tbody th{color:#fff;font-weight:600;white-space:nowrap}
.legend .n{text-align:right;font-variant-numeric:tabular-nums}

.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:48px;align-items:start}
.two img{border:2px solid var(--chalk);border-radius:6px}

.notice{border:2px solid var(--hivis);border-radius:6px;padding:26px 30px;background:var(--print-deep);max-width:860px}
.notice h2{color:var(--hivis)}
.notice dl{display:grid;grid-template-columns:minmax(0,210px) minmax(0,1fr);gap:12px 24px;margin:12px 0 0}
.notice dt{font-weight:600;color:#fff}
.notice dd{margin:0}

.order{list-style:none;counter-reset:o;padding:0;margin:16px 0 0;max-width:64ch}
.order li{counter-increment:o;display:grid;grid-template-columns:48px minmax(0,1fr);gap:12px;padding:12px 0;border-bottom:1px dashed var(--rule)}
.order li::before{content:counter(o);font:800 34px/1 var(--sign);color:var(--hivis)}
.order b{color:#fff}

.cmp{width:100%;max-width:860px;border-collapse:collapse;margin-top:18px;font-size:17px}
.cmp th,.cmp td{border-bottom:1px solid var(--rule);padding:10px 12px;text-align:left}
.cmp thead th{color:var(--chalk-dim);font-weight:600;font-size:15px;border-bottom:2px solid var(--chalk)}
.cmp td.me{color:var(--hivis);font-weight:600}

.pc{display:grid;grid-template-columns:1fr 1fr;gap:36px;max-width:900px}
.pc ul{margin:8px 0 0;padding-left:20px}
.pc li{margin-bottom:6px}

.qa details{border-bottom:1px solid var(--rule)}
.qa summary{cursor:pointer;list-style:none;padding:16px 36px 16px 0;position:relative;font-weight:600;font-size:19px;color:#fff}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:4px;top:10px;font:800 30px/1 var(--sign);color:var(--signal)}
.qa details[open] summary::after{content:"−"}
.qa details p{margin:0 0 16px;max-width:64ch}

.last{padding:60px 0;border-top:2px solid var(--rule)}
.last__in{display:grid;grid-template-columns:200px minmax(0,1fr);gap:36px;align-items:center;max-width:860px}
.last img{border-radius:12px}

.ft{background:var(--print-deep);border-top:2px solid var(--chalk);padding:42px 0 100px;font-size:15px;color:var(--chalk-dim)}
.ft__in{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px}
.ft nav{display:flex;flex-wrap:wrap;gap:6px 18px;margin-top:10px}
.ft nav a{color:var(--chalk);text-decoration:none}
.ft nav a:hover{text-decoration:underline}
.marks{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:14px}
.marks img{height:40px;width:auto;opacity:.85}
.plus18{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:50%;border:2px solid var(--chalk);color:var(--chalk);font-weight:600}

.strip{position:fixed;left:0;right:0;bottom:0;z-index:30;background:var(--signal);color:#1a0e02;transform:translateY(110%);transition:transform .25s}
.strip.is-on{transform:none}
.strip__in{display:flex;align-items:center;gap:12px;padding:10px 0}
.strip p{margin:0 auto 0 0;min-width:0;font-size:15px;line-height:1.3}
.strip p b{display:block;font-size:16px}
.strip .cta{background:#1a0e02;color:#fff;min-height:42px;padding:0 18px;white-space:nowrap;flex:none}
.strip__x{background:none;border:0;color:#1a0e02;font-size:24px;cursor:pointer;padding:6px}

@media (max-width:980px){
  .hero__in,.two{grid-template-columns:minmax(0,1fr)}
  .hero__in .builder{order:2}
  .spec{grid-template-columns:repeat(2,minmax(0,1fr))}
  .two img{max-width:min(520px,100%)}
}
@media (max-width:760px){
  body{font-size:17px}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;background:var(--print-deep);padding:6px 16px 14px;border-bottom:2px solid var(--rule);z-index:10}
  .nav.is-open{display:flex}
  .nav a{padding:12px 0;border-bottom:1px solid var(--rule)}
  .hd{position:relative}
  .menu-btn{display:block}
  .hd .cta{display:none}
  .hero{padding-top:28px}
  .hero__lede{font-size:18px}
  .builder{padding:16px}
  .builder__grid{grid-template-columns:minmax(0,1fr) 92px;gap:12px}
  .stack{min-height:240px;padding:0 4px}
  .floor{height:24px;font-size:14px}
  .readout b{font-size:24px}
  .sheet__tag{display:none}
  .board thead{display:none}
  .board,.board tbody,.board tr,.board td{display:block;width:100%}
  .board tr{padding:16px 0;border-bottom:1px solid var(--rule)}
  .board td{border:0;padding:6px 0}
  .board .go{text-align:left}
  .board .go .cta{width:100%}
  .notice{padding:20px}
  .notice dl{grid-template-columns:minmax(0,1fr);gap:4px}
  .notice dd{margin-bottom:12px}
  .pc,.ft__in{grid-template-columns:minmax(0,1fr);gap:24px}
  .last__in{grid-template-columns:minmax(0,1fr)}
  .last img{max-width:min(180px,100%)}
  .spec{grid-template-columns:minmax(0,1fr)}
  .legend,.cmp{font-size:15px}
  .legend th,.legend td,.cmp th,.cmp td{padding:8px 6px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}

.gone{padding:90px 0}
.gone p{max-width:34em;margin:16px 0 26px}