/* Kerberos specimen. Black on white, hard rules, nothing moves by itself. */

@font-face {
  font-family: "Kerberos Web";
  src: url("fonts/Kerberos-Roman.woff2?v=1.4.5-0f6c29a7") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Kerberos Web";
  src: url("fonts/Kerberos-Italic.woff2?v=1.4.5-0f6c29a7") format("woff2");
  font-weight: 300 700;
  font-style: italic;
  font-display: swap;
}
:root {
  --ink: #000;
  --paper: #fff;
  --rule: 2px solid var(--ink);
  --pad: clamp(1rem, 3vw, 2.5rem);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Kerberos Web", Georgia, serif;
  font-size: 19px;
  line-height: 1.35;
  font-kerning: normal;
}
::selection { background: var(--ink); color: var(--paper); }
a { color: inherit; text-decoration-thickness: 2px; text-underline-offset: .2em; }
a:hover { background: var(--ink); color: var(--paper); text-decoration: none; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; }
/* The whole page is one editable document. */
[contenteditable] { caret-color: var(--ink); }
[contenteditable]:focus-visible { outline: none; }

/* Labels and controls: Kerberos small caps (c2sc + smcp), so the page uses one typeface. */
.mono { font-family: "Kerberos Web", Georgia, serif; font-weight: 500; font-size: 17px; line-height: 1.4; letter-spacing: .06em; font-variant-caps: all-small-caps; font-variant-numeric: lining-nums; text-transform: none; }
.lnum { font-variant-numeric: lining-nums; }
.sc { font-variant-caps: all-small-caps; letter-spacing: .05em; }

main {
    margin: 0; /* No margins at all once it touches the screen edges */
}

/* Fallback to prevent negative margins on screens smaller than 1600px */
@media (min-width: 1600px) {
  main {
      border-top: var(--rule);
      max-width: 1600px;
      /* Calculate the remaining side space (equivalent to what "auto" resolves to) */
      --side-margin: calc((100vw - 1600px) / 2);
      
      /* Apply a maximum of 15px, but scale down if the side margin is smaller */
      margin-top: min(15px, var(--side-margin));
      margin-bottom: min(15px, var(--side-margin));
      
      /* Keep standard auto for left/right centering */
      margin-left: auto;
      margin-right: auto;
  }

  .block { border-left: var(--rule); border-right: var(--rule); }
}

.block { border-bottom: var(--rule); padding: var(--pad); }
.label { margin: 0 0 var(--pad); font-weight: 700; }
.label span { color: #666; }

/* Head */
.title {
  margin: 0 0 .1em -.04em;
  font-size: clamp(5rem, 22vw, 22rem);
  line-height: .85;
  letter-spacing: -.04em;
  font-weight: 400;
  font-variation-settings: "wght" var(--w, 400);
}
.facts { display: grid; grid-template-columns: 2fr 2fr 1.3fr; gap: var(--pad); align-items: start; border-top: var(--rule); padding-top: 1rem; margin-top: var(--pad); }
.facts p { margin: 0; }
.facts p:first-child { font-size: 1.4rem; line-height: 1.25; }
.links { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: flex-end; }
.head .slider { display: grid; grid-template-columns: 9rem 1fr; align-items: center; margin-top: var(--pad); }

/* Controls: plain native inputs, squared off */
.controls { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-bottom: var(--pad); }
.controls label { display: grid; gap: .3rem; min-width: 10rem; }
output { font-variant-numeric: tabular-nums lining-nums; }
select, input[type="search"] {
  font: inherit; font-variant-caps: normal; letter-spacing: 0; color: var(--ink); background: var(--paper);
  border: var(--rule); border-radius: 0; padding: .35rem .5rem; appearance: none;
}
select { padding-right: 1.6rem; background-image: linear-gradient(45deg, transparent 50%, #000 50%), linear-gradient(135deg, #000 50%, transparent 50%); background-position: right .7rem center, right .4rem center; background-size: 5px 5px; background-repeat: no-repeat; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 20px; background: transparent; margin: 0; cursor: ew-resize; }
input[type="range"]::-webkit-slider-runnable-track { height: 2px; background: var(--ink); }
input[type="range"]::-moz-range-track { height: 2px; background: var(--ink); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 20px; margin-top: -9px; background: var(--ink); border: 0; border-radius: 0; }
input[type="range"]::-moz-range-thumb { width: 14px; height: 20px; background: var(--ink); border: 0; border-radius: 0; }
/* focused, the thumb is drawn hollow: the page uses no colour but black */
input[type="range"]:focus-visible::-webkit-slider-thumb { background: var(--paper); box-shadow: inset 0 0 0 3px var(--ink); }
input[type="range"]:focus-visible::-moz-range-thumb { background: var(--paper); box-shadow: inset 0 0 0 3px var(--ink); }

/* Tester */
.tester {
  outline: none; min-height: 3em;
  font-size: var(--t-size, 48px);
  line-height: var(--t-leading, 1.2);
  font-variation-settings: "wght" 400, "GRAD" 0;
  font-style: var(--t-style, normal);
  overflow-wrap: break-word; hyphens: auto;
  caret-color: var(--ink);
}
.tester p { margin: 0 0 .4em; }
.note { margin: -1rem 0 var(--pad); color: #666; }

/* Weights */
.waterfall { border-top: var(--rule); }
.wf { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; align-items: baseline; border-bottom: 1px solid var(--ink); padding: .3rem 0; }
.wf-text { font-size: clamp(1.6rem, 4.5vw, 4rem); line-height: 1.25; white-space: nowrap; overflow: hidden; text-overflow: clip; }
.wf-text i { font-style: italic; }

/* Characters */
.glyphs { display: grid; grid-template-columns: 1fr minmax(260px, 30%); border: var(--rule); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(56px, 1fr)); max-height: 620px; overflow: auto; border-right: var(--rule); align-content: start; }
.cell {
  font: inherit; font-size: 28px; aspect-ratio: 1; display: grid; place-items: center;
  border: 0; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  background: var(--paper); color: var(--ink); cursor: pointer;
  font-variation-settings: "wght" var(--g-wght, 400); font-style: var(--g-style, normal);
}
.cell:hover, .cell[aria-selected="true"] { background: var(--ink); color: var(--paper); }
.inspector { padding: var(--pad); }
.big { font-size: clamp(8rem, 16vw, 15rem); line-height: 1.1; text-align: center; border-bottom: 1px solid var(--ink); margin-bottom: 1rem; font-variation-settings: "wght" var(--g-wght, 400); font-style: var(--g-style, normal); }
.inspector p { margin: 0; }

/* Features */
.features { width: 100%; border-collapse: collapse; }
.features th, .features td { border: 1px solid var(--ink); padding: .6rem .8rem; text-align: left; vertical-align: baseline; }
.features thead th { border-bottom: var(--rule); font-weight: 700; }
.features td { font-size: clamp(1.2rem, 2.2vw, 1.8rem); }
.features td:first-child { font-size: 17px; font-weight: 500; letter-spacing: .06em; font-variant-caps: all-small-caps; width: 14rem; }
.features td:first-child span { display: block; color: #666; }
.features td.switch { width: 7rem; vertical-align: middle; }
.toggle { font: inherit; font-size: 17px; width: 5rem; padding: .3rem 0; border: var(--rule); border-radius: 0; background: var(--paper); color: var(--ink); cursor: pointer; }
.toggle[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.toggle:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; }

/* Reading */
.essay { columns: 2 22em; column-gap: var(--pad); column-rule: 1px solid var(--ink); font-size: var(--r-size, 19px); font-variation-settings: "wght" var(--r-wght, 400); hyphens: auto; text-align: justify; max-width: none; }
.essay p { margin: 0 0 .9em; }

/* Lineage */
.lineage { display: grid; grid-template-columns: 6rem 1fr; margin: 0; border-top: var(--rule); }
.lineage dt, .lineage dd { margin: 0; padding: .6rem 0; border-bottom: 1px solid var(--ink); }
.lineage dd { font-size: 1.2rem; }

.foot { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.foot p { margin: 0; }
.foot p:first-child a { font-size: 1.6rem; font-weight: 400; letter-spacing: 0; font-variant-caps: normal; }

@media (max-width: 800px) {
  .facts, .glyphs { grid-template-columns: 1fr; }
  .links { justify-content: flex-start; }
  .grid { border-right: 0; border-bottom: var(--rule); }
  .wf { grid-template-columns: 4rem 1fr; }
  .head .slider { grid-template-columns: 1fr; }
}