/* TokenToken — site styles. Ink on cool paper, one teal accent, IBM Plex. */
:root{
  --bg:#f4f6f6; --surface:#fff; --fg:#10171a; --muted:#51605f; --faint:#6e7d7d; --rule:#d9e0e0;
  --accent:#0d6b61; --accent-soft:#e3efed; --ink:#0c1214;
  --warn:#92531a; --warn-soft:#f8eddf; --ok:#2b6b3e; --ok-soft:#e4f0e6;
  --sans:'IBM Plex Sans','PingFang SC','Hiragino Sans GB','Noto Sans CJK SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,'Noto Sans Mono CJK SC',monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0d1315; --surface:#141c1f; --fg:#e3eaea; --muted:#95a3a3; --faint:#7d8c8c; --rule:#253032;
  --accent:#50bfaf; --accent-soft:#143029; --ink:#0a0f11;
  --warn:#dd9455; --warn-soft:#2c2116; --ok:#6bc389; --ok-soft:#16291c;
  color-scheme:dark;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:1140px;margin:0 auto;padding-inline:max(20px,env(safe-area-inset-left,0px)) max(20px,env(safe-area-inset-right,0px))}
a{color:var(--accent);text-underline-offset:2px}
h1,h2,h3{letter-spacing:-.02em;text-wrap:balance;margin:0}
h1{font-size:clamp(2rem,5.2vw,3.3rem);line-height:1.08}
h2{font-size:clamp(1.4rem,3vw,1.9rem);line-height:1.2}
h3{font-size:1.05rem;letter-spacing:-.01em}
p{margin:.65em 0}
code,.mono{font-family:var(--mono)}
.tnum{font-variant-numeric:tabular-nums}

/* nav */
header.nav{border-bottom:1px solid var(--rule);background:var(--surface);position:sticky;top:0;z-index:20}
header.nav .wrap{display:flex;align-items:center;gap:28px;min-height:64px;flex-wrap:wrap;padding-block:8px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--fg);font-weight:600;font-size:15.5px;white-space:nowrap}
.brand svg{display:block}
nav.links{display:flex;gap:22px;flex:1 1 280px;min-width:0;font-size:14px;flex-wrap:wrap}
nav.links a{color:var(--muted);text-decoration:none}
nav.links a:hover,nav.links a[aria-current]{color:var(--fg)}
.navr{display:flex;align-items:center;gap:14px;font-size:14px;white-space:nowrap}
.lang{color:var(--faint);text-decoration:none;font-family:var(--mono);font-size:12.5px;border:1px solid var(--rule);border-radius:3px;padding:3px 7px}
.btn{display:inline-block;text-decoration:none;font-weight:500;border-radius:4px;padding:11px 20px;font-size:14.5px;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn.p{background:var(--accent);color:#fff}
.btn.s{background:transparent;color:var(--fg);border-color:var(--rule)}
.btn.sm{padding:8px 15px;font-size:13.5px}
.btn.w{background:#fff;color:var(--ink)}

/* sections */
section{padding-block:clamp(44px,6vw,76px)}
section.tight{padding-block:clamp(32px,4vw,52px)}
section.dark{background:var(--ink);color:#edf2f2}
section.dark h2,section.dark h1{color:#fff}
section.dark p{color:#aebaba}
section.panel{background:var(--surface);border-block:1px solid var(--rule)}
.eyebrow{font-family:var(--mono);font-size:11.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--accent)}
section.dark .eyebrow{color:#63c9b9}
.lede{font-size:clamp(1rem,1.6vw,1.12rem);color:var(--muted);max-width:40em}
.hd{display:flex;justify-content:space-between;align-items:baseline;gap:20px;flex-wrap:wrap;margin-bottom:22px}

/* grids */
.g2,.g3,.g4{display:grid;gap:18px}
.g2{grid-template-columns:repeat(auto-fit,minmax(min(100%,22rem),1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(min(100%,17rem),1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(min(100%,13rem),1fr))}
.card{background:var(--surface);border:1px solid var(--rule);border-radius:5px;padding:22px 24px}
.card>*{min-width:0}
section.dark .card{background:#141c1f;border-color:#243032}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px;margin:0}
.stat{background:var(--surface);border:1px solid var(--rule);border-radius:5px;padding:18px 20px}
.stat b{display:block;font-family:var(--mono);font-size:1.5rem;font-weight:600;letter-spacing:-.02em}
.stat span{display:block;font-size:12.5px;color:var(--faint);margin-top:3px}

/* tables */
.tbl{overflow-x:auto;background:var(--surface);border:1px solid var(--rule);border-radius:5px}
table{border-collapse:collapse;width:100%;font-size:14px;min-width:34rem}
th,td{text-align:left;padding:12px 18px;border-bottom:1px solid var(--rule)}
thead th{background:var(--accent-soft);font-size:12px;font-weight:600;white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
td.r,th.r{text-align:right}
.tag{display:inline-block;font-family:var(--mono);font-size:11.5px;padding:2px 8px;border-radius:99px;border:1px solid;white-space:nowrap}
.tag.ok{color:var(--ok);border-color:var(--ok);background:var(--ok-soft)}
.tag.soon{color:var(--warn);border-color:var(--warn);background:var(--warn-soft)}
.tag.a{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}
.note{font-size:12.5px;color:var(--faint);margin-top:10px}

/* code */
pre{margin:0;background:var(--ink);color:#d6e0e1;border-radius:6px;padding:20px 22px;overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:1.75}
pre .c{color:#7d8e91}pre .s{color:#e2b277}pre .k{color:#8fd4c8}
.inline{font-family:var(--mono);font-size:.88em;background:var(--accent-soft);padding:.1em .35em;border-radius:3px}

/* footer */
footer.ft{border-top:1px solid var(--rule);background:var(--surface);padding-block:34px 44px;font-size:13.5px}
footer.ft .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,13rem),1fr));gap:26px}
footer.ft h4{font-size:12px;letter-spacing:.04em;color:var(--muted);margin:0 0 10px;font-weight:600}
footer.ft a{display:block;color:var(--muted);text-decoration:none;margin-bottom:7px}
footer.ft a:hover{color:var(--fg)}
footer.ft .legal{margin-top:28px;padding-top:18px;border-top:1px solid var(--rule);color:var(--faint);font-size:12.5px;display:flex;gap:18px;flex-wrap:wrap;justify-content:space-between}
.sel{-webkit-user-select:all;user-select:all;font-family:var(--mono)}

/* legal docs */
article.doc{max-width:46rem;margin:0 auto;padding-block:40px 60px}
article.doc h1{font-size:clamp(1.7rem,4vw,2.3rem);margin-bottom:6px}
article.doc h2{font-size:1.15rem;margin:2em 0 .4em}
article.doc h3{font-size:1rem;margin:1.5em 0 .3em}
article.doc p,article.doc li{font-size:15px;color:var(--fg)}
article.doc ul,article.doc ol{padding-left:1.3em}
article.doc li{margin:.3em 0}
article.doc .meta{font-family:var(--mono);font-size:12.5px;color:var(--faint);margin-bottom:28px}
article.doc .toc{background:var(--surface);border:1px solid var(--rule);border-radius:5px;padding:16px 20px;margin:24px 0;font-size:14px}
article.doc .toc a{display:block;margin:.25em 0;text-decoration:none}

/* ─────────────────────────────────────────────────────────────
   Figures: charts, diagrams, media. Chart hues are their own
   validated slots (not the brand accent): see docs/PRICING.md.
   ───────────────────────────────────────────────────────────── */
.fig{background:var(--surface);border:1px solid var(--rule);border-radius:5px;padding:22px 24px 18px;
  --s1:#008a7d; --s2:#bf5316; --grid:#dfe5e5; --track:#eef2f2}
@media (prefers-color-scheme:dark){.fig{--s1:#2fa897; --s2:#d95926; --grid:#243032; --track:#1a2326}}
section.dark .fig{background:#141c1f;border-color:#243032;--s1:#2fa897;--s2:#d95926;--grid:#243032;--track:#1a2326}
.fig .cap{font-size:12.5px;color:var(--faint);margin:14px 0 0;max-width:46em}
.fig h3{margin-bottom:4px}
.fig .sub{font-size:13px;color:var(--muted);margin:0 0 18px}
.lgd{display:flex;gap:18px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);margin-bottom:16px}
.lgd i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}

/* horizontal bar chart */
.bars{display:grid;gap:10px}
.bars .row{display:grid;grid-template-columns:minmax(7.5rem,11rem) 1fr;gap:12px;align-items:center}
.bars .lbl{font-family:var(--mono);font-size:12px;color:var(--fg);overflow-wrap:anywhere;line-height:1.35}
.bars .lbl em{display:block;font-style:normal;font-family:var(--sans);font-size:11px;color:var(--faint)}
.bars .track{position:relative;background:var(--track);border-radius:2px;height:22px;display:flex;align-items:center}
.bars .bar{height:22px;border-radius:0 4px 4px 0;min-width:3px}
.bars .val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:12px;color:var(--fg);padding-left:8px;white-space:nowrap}
.bars .track>.val:first-child{color:var(--faint)}  /* zero-length bar: label only */
.bars .row:hover .track{outline:1px solid var(--rule);outline-offset:2px}
.bars .axis{display:grid;grid-template-columns:minmax(7.5rem,11rem) 1fr;gap:12px;margin-top:4px}
.bars .axis .ticks{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;
  color:var(--faint);border-top:1px solid var(--grid);padding-top:5px}

/* diagrams */
.dia{width:100%;height:auto;display:block;overflow:visible}
.dia text{font-family:var(--mono);font-size:11px;fill:var(--muted)}
.dia text.t{font-family:var(--sans);font-size:12.5px;fill:var(--fg);font-weight:500}
.dia text.n{font-size:10.5px;fill:var(--faint)}
.dia .box{fill:var(--surface);stroke:var(--rule);stroke-width:1}
.dia .box.on{fill:var(--accent-soft);stroke:var(--accent)}
.dia .ln{stroke:var(--rule);stroke-width:1.5;fill:none}
.dia .ln.hi{stroke:var(--accent);stroke-width:2}
.dia .dot{fill:var(--accent)}
section.dark .dia .box{fill:#1a2326;stroke:#2c3a3d}
section.dark .dia .box.on{fill:#143029;stroke:#50bfaf}
section.dark .dia text{fill:#8b9b9e}
section.dark .dia text.t{fill:#edf2f2}
section.dark .dia .ln{stroke:#2c3a3d}

/* token flow animation (honest motion: schematic, not footage) */
.flow .pk{fill:var(--accent);opacity:.9}
@media (prefers-reduced-motion:no-preference){
  .flow .pk{animation:drift 2.6s linear infinite}
  .flow .pk:nth-child(2){animation-delay:.45s}.flow .pk:nth-child(3){animation-delay:.9s}
  .flow .pk:nth-child(4){animation-delay:1.35s}.flow .pk:nth-child(5){animation-delay:1.8s}
  .flow .pk:nth-child(6){animation-delay:2.2s}
}
@keyframes drift{0%{transform:translateX(0);opacity:0}12%{opacity:.95}88%{opacity:.95}100%{transform:translateX(188px);opacity:0}}

/* memory-scale columns */
.mem{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;align-items:end;min-height:190px}
.mem .col{display:flex;flex-direction:column;justify-content:flex-end;gap:8px;text-align:center}
.mem .stack{background:var(--s1);border-radius:4px 4px 0 0;width:100%}
.mem .nm{font-family:var(--mono);font-size:12px;color:var(--fg)}
.mem .gb{font-family:var(--mono);font-size:11.5px;color:var(--faint);font-variant-numeric:tabular-nums}

/* details/table view for figures */
.fig details{margin-top:14px;font-size:13px}
.fig summary{cursor:pointer;color:var(--accent);font-size:12.5px}
.fig details table{margin-top:10px;min-width:0;font-size:13px}
.fig details th,.fig details td{padding:7px 12px}

/* ─────────────────────────────────────────────────────────────
   Imagery. Generated with our own models on our own GPUs
   (phosor.ai, qwen-image / wan). Illustrative, never captioned
   as a photograph of a specific facility.
   ───────────────────────────────────────────────────────────── */
.band{position:relative;overflow:hidden;background:var(--ink);line-height:0}
.band img{width:100%;height:clamp(160px,24vw,300px);object-fit:cover;display:block}
.band::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,15,17,.42) 0%,rgba(10,15,17,0) 32%,rgba(10,15,17,0) 68%,rgba(10,15,17,.42) 100%)}
.band .note{position:absolute;right:16px;bottom:10px;margin:0;color:#8b9b9e;font-size:11.5px;line-height:1.4;z-index:1}

/* a dark section that carries a photographic backdrop */
section.shot{position:relative;isolation:isolate;background:var(--ink)}
section.shot::before{content:"";position:absolute;inset:0;z-index:-2;
  background-image:image-set(url("/assets/media/fleet-overhead.webp") type("image/webp"),
                             url("/assets/media/fleet-overhead.jpg") type("image/jpeg"));
  background-size:cover;background-position:center}
section.shot::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(10,15,17,.94) 0%,rgba(10,15,17,.86) 46%,rgba(10,15,17,.72) 100%)}
section.shot.gpu::before{background-image:image-set(url("/assets/media/gpu-board.webp") type("image/webp"),
                                                    url("/assets/media/gpu-board.jpg") type("image/jpeg"))}
@media (max-width:640px){section.shot::after{background:rgba(10,15,17,.9)}}
.band video{width:100%;height:clamp(160px,24vw,300px);object-fit:cover;display:block}
section.shot.aisle::before{background-image:image-set(url("/assets/media/rack-aisle.webp") type("image/webp"),
                                                      url("/assets/media/rack-aisle.jpg") type("image/jpeg"))}