/* prismaquant.org — "Allocation"
   The map is the product. Ink ground, format-coded spectrum.
   Deliberately single-theme: the palette encodes hardware formats, and a
   light inversion would break the spectrum's reading. Every colour is
   painted explicitly so the page never borrows a host ground. */

:root {
  --bg: #0A0C11;
  --panel: #10141D;
  --panel-2: #141926;
  --line: #1D2331;
  --line-2: #2A3346;
  --fg: #E6E9F2;
  --dim: #B9C0D0;
  --mut: #7F889E;
  --faint: #4C566B;

  /* Format spectrum. Weight precision sets the hue family, activation
     precision and codebook size set the lightness within it. */
  --nvfp4: #7B6CF6;
  --nvfp4a16: #A99CF9;
  --mxfp4: #5C4FD0;
  --fp8: #17B7A8;
  --fp8-alt: #3FD1C2;
  --fp8-source: #BDF8EE;
  --mxfp8: #0E8577;
  --bf16: #F2A03D;
  --anchor: #6B7488;

  --ok: #46C08B;
  --warn: #E9A23B;
  --bad: #D9534F;

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo,
          Consolas, monospace;

  --wrap: 1180px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, canvas { max-width: 100%; }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--nvfp4a16);
  outline-offset: 2px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.5rem; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--panel); color: var(--fg);
  padding: .7rem 1rem; z-index: 40; border: 1px solid var(--line-2);
}
.skip:focus { left: .5rem; top: .5rem; }

/* ---------------------------------------------------------------- nav --- */

.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(10, 12, 17, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-in {
  max-width: var(--wrap); margin: 0 auto; padding: .8rem 1.5rem;
  display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap;
}
.brand {
  font-family: var(--mono); font-size: .82rem; letter-spacing: .14em;
  text-transform: uppercase; text-decoration: none; color: var(--fg);
  font-weight: 600; display: flex; align-items: center; gap: .55rem;
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 1px; flex: none;
  background: linear-gradient(135deg, var(--nvfp4) 0 50%, var(--fp8) 50% 100%);
}
.nav-links { display: flex; gap: 1.25rem; flex-wrap: wrap; margin-left: auto; }
.nav-links a {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .06em;
  color: var(--mut); text-decoration: none; padding: .2rem 0;
  border-bottom: 1px solid transparent;
}
.nav-links a:hover { color: var(--fg); border-bottom-color: var(--line-2); }
.nav-links a[aria-current="page"] { color: var(--fg); border-bottom-color: var(--nvfp4); }

/* ------------------------------------------------------------ typography */

.eyebrow {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--mut); margin: 0;
}
h1 {
  font-size: clamp(2.4rem, 5.6vw, 4.4rem); line-height: 1; margin: 1.4rem 0 0;
  letter-spacing: -.035em; font-weight: 700; text-wrap: balance;
}
h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem); letter-spacing: -.025em;
  font-weight: 700; margin: 0; line-height: 1.15; text-wrap: balance;
}
h3 {
  font-size: 1.05rem; letter-spacing: -.01em; font-weight: 650;
  margin: 0 0 .5rem; line-height: 1.3;
}
h4 {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--mut); font-weight: 600;
  margin: 0 0 .7rem;
}
.lede {
  margin: 1.5rem 0 0; font-size: 1.12rem; line-height: 1.62;
  color: var(--dim); max-width: 62ch;
}
p { margin: 1rem 0 0; max-width: 72ch; }
.muted { color: var(--mut); }
.small { font-size: .82rem; line-height: 1.6; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

code {
  font-family: var(--mono); font-size: .88em;
  background: var(--panel-2); border: 1px solid var(--line);
  padding: .08em .35em; border-radius: 2px; color: var(--dim);
}

/* --------------------------------------------------------------- layout */

.sec { padding: 4.5rem 0; border-top: 1px solid var(--line); }
.sec:first-of-type { border-top: 0; }
.hero { padding: 4.5rem 0 1rem; }

.grid-2 {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 2.4rem; margin-top: 2.4rem;
}
.grid-3 {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem; margin-top: 2.4rem;
}
.rule { border-left: 2px solid var(--line-2); padding-left: 1.25rem; }

.card {
  border: 1px solid var(--line); background: var(--panel);
  padding: 1.4rem; border-radius: 3px;
}
.card .k {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--mut); display: block;
}
.card .v {
  font-family: var(--mono); font-size: 1.85rem; font-weight: 600;
  margin: .45rem 0 .3rem; letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}

/* ----------------------------------------------------------- the map --- */

.mapwrap {
  margin-top: 2.2rem; border: 1px solid var(--line);
  background: var(--panel); border-radius: 3px;
}
.maphead {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1rem; flex-wrap: wrap;
  padding: .9rem 1.1rem; border-bottom: 1px solid var(--line);
}
.maptitle {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--dim); margin: 0;
}
.mapsub { font-family: var(--mono); font-size: .7rem; color: var(--mut); }
.canvasbox { position: relative; padding: 1.1rem; }
.canvasbox canvas { display: block; width: 100%; }

.tip {
  position: absolute; pointer-events: none; opacity: 0;
  transition: opacity .12s; background: #05070B;
  border: 1px solid var(--line-2); padding: .5rem .65rem; border-radius: 2px;
  font-family: var(--mono); font-size: .7rem; line-height: 1.5;
  white-space: nowrap; z-index: 3; color: var(--fg);
}

.legend {
  display: flex; gap: 1.4rem; flex-wrap: wrap; align-items: center;
  padding: .85rem 1.1rem; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: .73rem;
}
.key { display: flex; align-items: center; gap: .5rem; color: var(--mut); }
.sw { width: 11px; height: 11px; border-radius: 1px; flex: none; }
.sw.anchored {
  background: repeating-linear-gradient(45deg,
    var(--anchor) 0 2px, transparent 2px 4px);
  border: 1px solid var(--anchor);
}
.cap {
  padding: 0 1.1rem 1.1rem; font-size: .78rem; color: var(--mut);
  line-height: 1.6; max-width: 82ch; margin: 0;
}

/* ------------------------------------------------------------ controls -- */

.controls {
  display: grid; gap: 1.4rem; padding: 1.1rem;
  border-top: 1px solid var(--line);
}
.ctl { display: grid; gap: .55rem; }
.ctl-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1rem; flex-wrap: wrap;
}
.ctl-label {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--dim);
}
.ctl-val {
  font-family: var(--mono); font-size: .82rem; color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.ctl-note { font-size: .74rem; color: var(--mut); margin: 0; max-width: 76ch; }

input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 22px;
  background: transparent; cursor: pointer; margin: 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 3px; background: var(--line-2); border-radius: 2px;
}
input[type="range"]::-moz-range-track {
  height: 3px; background: var(--line-2); border-radius: 2px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--fg); border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--line-2); margin-top: -6px;
}
input[type="range"]::-moz-range-thumb {
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--fg); border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--line-2);
}

.readout {
  display: flex; gap: 1.6rem; flex-wrap: wrap;
  font-family: var(--mono); font-size: .74rem; color: var(--mut);
  padding: .2rem 0 0;
}
.readout b {
  color: var(--fg); font-weight: 600; font-variant-numeric: tabular-nums;
}

.flag {
  display: inline-block; font-family: var(--mono); font-size: .64rem;
  letter-spacing: .12em; text-transform: uppercase;
  border: 1px solid var(--warn); color: var(--warn);
  padding: .1rem .4rem; border-radius: 2px; vertical-align: middle;
}

/* --------------------------------------------------------------- data --- */

.scroller { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .86rem; min-width: 560px; }
th {
  text-align: left; font-family: var(--mono); font-size: .67rem;
  letter-spacing: .13em; text-transform: uppercase; color: var(--mut);
  font-weight: 600; padding: .7rem .8rem; border-bottom: 1px solid var(--line-2);
}
td { padding: .72rem .8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:hover td { background: var(--panel); }
td.num, th.num {
  text-align: right; font-family: var(--mono);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
caption {
  text-align: left; font-family: var(--mono); font-size: .7rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--mut);
  padding-bottom: .7rem;
}

.pill {
  display: inline-block; font-family: var(--mono); font-size: .64rem;
  letter-spacing: .08em; padding: .12rem .42rem; border-radius: 2px;
  border: 1px solid var(--line-2); color: var(--mut); white-space: nowrap;
}
.pill.ct { border-color: #2F4A7A; color: #7FA6E0; }
.pill.gg { border-color: #4A3A6B; color: #A98FD8; }
.pill.cb { border-color: #175C55; color: #4FD1C2; }

.btn {
  display: inline-block; padding: .7rem 1.25rem; border-radius: 2px;
  text-decoration: none; font-family: var(--mono); font-size: .76rem;
  letter-spacing: .06em; border: 1px solid var(--line-2); color: var(--fg);
  background: var(--panel); transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--nvfp4); background: var(--panel-2); }
.btn.primary { background: var(--nvfp4); border-color: var(--nvfp4); color: #0A0C11; font-weight: 600; }
.btn.primary:hover { background: var(--nvfp4a16); border-color: var(--nvfp4a16); }
.btns { display: flex; gap: .7rem; flex-wrap: wrap; margin-top: 1.8rem; }

pre {
  margin: 1.2rem 0 0; padding: 1rem 1.1rem; overflow-x: auto;
  background: #06080C; border: 1px solid var(--line);
  border-radius: 3px; font-family: var(--mono); font-size: .8rem;
  line-height: 1.65; color: var(--dim);
}
pre code { background: none; border: 0; padding: 0; font-size: inherit; }

.note {
  border-left: 2px solid var(--warn); padding: .1rem 0 .1rem 1.1rem;
  margin-top: 1.6rem; color: var(--dim); font-size: .9rem;
}
.note.bad { border-left-color: var(--bad); }

ul.clean { list-style: none; padding: 0; margin: 1.2rem 0 0; }
ul.clean li {
  padding: .55rem 0 .55rem 1.2rem; position: relative;
  border-bottom: 1px solid var(--line); color: var(--dim); font-size: .92rem;
}
ul.clean li::before {
  content: ""; position: absolute; left: 0; top: 1.05em;
  width: 5px; height: 5px; background: var(--faint); border-radius: 1px;
}

/* -------------------------------------------------------------- footer -- */

.foot {
  border-top: 1px solid var(--line); margin-top: 4rem;
  padding: 3rem 0 4.5rem; color: var(--mut); font-size: .84rem;
}
.foot a { color: var(--dim); }
.foot-cols {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 2rem;
}
.foot-cols a { display: block; padding: .22rem 0; text-decoration: none; }
.foot-cols a:hover { color: var(--fg); }

.vis-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ------------------------------------------------------- heatmap ramp --- */

.colorbar { padding: .85rem 1.1rem; border-top: 1px solid var(--line); }
.colorbar .bar {
  height: 9px; border-radius: 2px; border: 1px solid var(--line-2);
}
.colorbar .bar-ticks {
  display: flex; justify-content: space-between; margin-top: .4rem;
  font-family: var(--mono); font-size: .68rem; color: var(--mut);
  font-variant-numeric: tabular-nums;
}

/* View toggle: which quantity the grid is showing. Segmented rather than a
   dropdown, because the whole point is flipping between them repeatedly. */
.modes { display: flex; flex-wrap: wrap; gap: 0; }
.mode {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .06em;
  color: var(--mut); background: var(--panel-2); cursor: pointer;
  border: 1px solid var(--line-2); border-right-width: 0;
  padding: .5rem .95rem; transition: color .14s, background .14s;
}
.mode:first-child { border-radius: 2px 0 0 2px; }
.mode:last-child { border-right-width: 1px; border-radius: 0 2px 2px 0; }
.mode:hover { color: var(--fg); }
.mode[aria-pressed="true"] {
  color: var(--bg); background: var(--fg); border-color: var(--fg);
}
.mode:focus-visible { outline: 2px solid var(--nvfp4); outline-offset: 2px; }

.fmt-name {
  font-family: var(--mono); font-size: 1.05rem; color: var(--fg);
  font-variant-numeric: tabular-nums;
}

/* `hidden` must win. Several component rules here set `display` on the same
   elements the scripts toggle, and a class selector outranks the user-agent
   [hidden] rule — which leaves a "hidden" canvas holding its full height. */
[hidden] { display: none !important; }