/* the333.dev — one stylesheet for every page.
   Every value lives in the tokens below; components use tokens only. Dark is the default,
   light follows the reader's system setting. Colour appears only as a small state dot with a
   word next to it (Recommendation 29). */

@font-face { font-family: "Fraunces"; src: url("/assets/fonts/fraunces.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Atkinson"; src: url("/assets/fonts/atkinson-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Atkinson"; src: url("/assets/fonts/atkinson-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("/assets/fonts/jetbrains-mono.woff2") format("woff2"); font-weight: 100 800; font-display: swap; }

:root {
  color-scheme: dark light;
  --sky: radial-gradient(120% 80% at 50% -10%, #1c1f26 0%, #101216 55%, #0a0b0e 100%);
  --ground: #0b0c0f;
  --surface: linear-gradient(180deg, #181b21, #121419);
  --surface-flat: #15171c;
  --raised: #1d2027;
  --edge: rgba(255, 255, 255, .08);
  --edge-strong: rgba(255, 255, 255, .16);
  --sheen: inset 0 1px 0 rgba(255, 255, 255, .06);
  --shadow: 0 18px 40px -22px rgba(0, 0, 0, .75);
  --ink: #ecedef;
  --ink-strong: #ffffff;
  --dim: #a3a7af;
  --faint: #8e929a;
  --title-ink: linear-gradient(180deg, #ffffff 35%, #aab0bb);
  --button: linear-gradient(180deg, #ffffff, #d6dae1);
  --button-ink: #0b0c0f;
  --ok: #3fcf8e;
  --quiet: #e8a33d;
  --later: #6ea8fe;
  --bad: #ef5b5b;
  --focus: #ffffff;

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "Atkinson", "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --caption: clamp(1.45rem, 1.05rem + 1.6vw, 2.5rem);
  --title: clamp(1.75rem, 1.2rem + 2.2vw, 3.25rem);
  --lede: clamp(1.1rem, 1rem + .45vw, 1.35rem);
  --body: clamp(1rem, .95rem + .2vw, 1.1875rem);
  --small: .8125rem;

  --gutter: clamp(16px, 4vw, 48px);
  --column: 40rem;
  --wide: 72rem;
  --header: 56px;
  --r-s: 8px;
  --r-m: 12px;
  --r-l: 18px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --sky: radial-gradient(120% 80% at 50% -10%, #ffffff 0%, #f4f5f7 60%, #eceef1 100%);
    --ground: #f1f2f4;
    --surface: linear-gradient(180deg, #ffffff, #f8f9fa);
    --surface-flat: #ffffff;
    --raised: #ffffff;
    --edge: rgba(14, 16, 20, .09);
    --edge-strong: rgba(14, 16, 20, .18);
    --sheen: inset 0 1px 0 rgba(255, 255, 255, .9);
    --shadow: 0 1px 2px rgba(14, 16, 20, .04), 0 14px 32px -20px rgba(14, 16, 20, .22);
    --ink: #121316;
    --ink-strong: #000000;
    --dim: #4a4f57;
    --faint: #5c6169;
    --title-ink: linear-gradient(180deg, #121316 40%, #4a4f57);
    --button: linear-gradient(180deg, #2a2e36, #0e1014);
    --button-ink: #ffffff;
    --ok: #12985a;
    --quiet: #a86a06;
    --later: #2563c9;
    --bad: #c93434;
    --focus: #121316;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header) + 16px); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--sky) fixed, var(--ground);
  color: var(--ink);
  font: 400 var(--body)/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: anywhere;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--ink); color: var(--ground); }
.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--raised); padding: 8px 12px; border-radius: var(--r-s); }
.skip:focus { left: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 30;
  height: var(--header);
  display: flex; align-items: center; gap: 28px;
  padding: 0 var(--gutter);
  background: var(--ground);
  border-bottom: 1px solid var(--edge);
}
.mark { font: 600 1.375rem/1 var(--serif); letter-spacing: -.01em; text-decoration: none; color: var(--ink-strong); }
.top nav { display: flex; gap: 22px; flex: 1; }
.top nav a { text-decoration: none; color: var(--dim); font-size: .9375rem; padding: 6px 0; white-space: nowrap; overflow-wrap: normal; }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }
.top .state { margin-left: auto; }
.menu { display: none; }
@media (max-width: 60em) {
  .top { gap: 12px; }
  .top nav { display: none; }
  .top .state .word { display: none; }
  .menu { display: block; margin-left: auto; position: relative; }
  .menu summary { list-style: none; cursor: pointer; min-height: 44px; display: flex; align-items: center; padding: 0 4px; color: var(--ink); }
  .menu summary::-webkit-details-marker { display: none; }
  .menu[open] .sheet { display: grid; }
  .sheet {
    display: none; position: fixed; left: 0; right: 0; top: var(--header);
    padding: 8px var(--gutter) 20px; gap: 2px;
    background: var(--surface-flat); border-bottom: 1px solid var(--edge); box-shadow: var(--shadow);
  }
  .sheet a { min-height: 48px; display: flex; align-items: center; text-decoration: none; font-size: 1.0625rem; border-bottom: 1px solid var(--edge); }
  .top .state { margin-left: 0; }
}

/* A state: a small coloured dot, always with a word beside it. */
.state { display: inline-flex; align-items: center; gap: 8px; font-size: var(--small); color: var(--dim); white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); flex: none; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 4px color-mix(in srgb, var(--ok) 18%, transparent); }
.dot.quiet { background: var(--quiet); }
.dot.later { background: var(--later); }
.dot.bad { background: var(--bad); }

/* Type */
h1, h2, h3 { font-family: var(--serif); font-weight: 560; letter-spacing: -.015em; line-height: 1.12; margin: 0; }
h2 { font-size: var(--title); }
h3 { font-size: clamp(1.2rem, 1.05rem + .6vw, 1.6rem); margin-top: 2.4em; margin-bottom: .5em; }
p { margin: 0 0 1.1em; }
.lede { font-size: var(--lede); line-height: 1.55; color: var(--ink); }
.dim { color: var(--dim); }
.mono, code, kbd, pre { font-family: var(--mono); font-size: .9em; }
code { background: var(--raised); border: 1px solid var(--edge); border-radius: 6px; padding: .08em .38em; }
.ink-title { background: var(--title-ink); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Columns and bands */
.column { width: min(100% - 2 * var(--gutter), var(--column)); margin-inline: auto; }
.wide { width: min(100% - 2 * var(--gutter), var(--wide)); margin-inline: auto; }
.band { padding: clamp(72px, 10vw, 140px) 0; }
.band + .band { border-top: 1px solid var(--edge); }
.band > .column > h2, .band > .wide > h2 { margin-bottom: .6em; text-align: center; }
.band .center { text-align: center; }

/* Surfaces */
.panel {
  background: var(--surface); border: 1px solid var(--edge); border-radius: var(--r-l);
  box-shadow: var(--sheen), var(--shadow); padding: clamp(18px, 2.4vw, 28px);
}

/* Buttons: the name of where they go. */
.actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 20px; border-radius: var(--r-m);
  font: 600 1rem/1 var(--sans); text-decoration: none; cursor: pointer;
  border: 1px solid var(--edge-strong); background: var(--surface); color: var(--ink);
  box-shadow: var(--sheen);
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}
.button:hover { border-color: var(--ink); }
.button:active { transform: scale(.97); }
.button.main { background: var(--button); color: var(--button-ink); border-color: transparent; box-shadow: var(--sheen), 0 10px 24px -14px rgba(0, 0, 0, .7); }
@media (min-width: 761px) { .button { min-height: 44px; } }

/* A command to copy */
.command {
  display: flex; align-items: stretch; gap: 0;
  border: 1px solid var(--edge); border-radius: var(--r-m); overflow: hidden;
  background: var(--surface-flat); box-shadow: var(--sheen);
}
.command code { flex: 1; min-width: 0; border: 0; border-radius: 0; background: none; padding: 14px 16px; font-size: .9375rem; overflow-x: auto; white-space: pre; }
.command button {
  flex: none; min-width: 72px; border: 0; border-left: 1px solid var(--edge); background: none; color: var(--dim);
  font: 600 .875rem var(--sans); cursor: pointer;
}
.command button:hover { color: var(--ink); }
.command button[data-done] { color: var(--ok); }

pre.block {
  background: var(--surface-flat); border: 1px solid var(--edge); border-radius: var(--r-m);
  padding: 14px 16px; overflow-x: auto; white-space: pre; overflow-wrap: normal; line-height: 1.7; font-size: .875rem;
}

details.more { border: 1px solid var(--edge); border-radius: var(--r-m); background: var(--surface-flat); margin: 1.4em 0; }
details.more > summary { cursor: pointer; padding: 14px 16px; font-weight: 600; min-height: 44px; }
details.more > div { padding: 0 16px 6px; }

/* Numbers that change with the network */
.figures { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--edge); border: 1px solid var(--edge); border-radius: var(--r-l); overflow: hidden; }
.figures > div { background: var(--surface-flat); padding: 22px 20px; }
.figures dt { font-size: var(--small); color: var(--faint); }
.figures dd { margin: 6px 0 0; font: 500 clamp(1.6rem, 1.2rem + 1.4vw, 2.6rem)/1.1 var(--mono); color: var(--ink-strong); font-variant-numeric: tabular-nums; }
@media (max-width: 760px) { .figures { grid-template-columns: repeat(2, 1fr); } }

/* Footer */
.foot { border-top: 1px solid var(--edge); padding: 40px 0 64px; color: var(--faint); font-size: .9375rem; }
.foot .wide { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; }
.foot a { color: var(--dim); text-decoration: none; }
.foot a:hover { color: var(--ink); }
.foot .mark { margin-right: 8px; }
.foot .langs { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 20px; }
.foot .langs a[aria-current] { color: var(--ink); }
/* Which epoch of this line it is, under or beside the epoch number. */
.line-epoch { display: block; margin-top: 4px; font: 400 var(--small)/1.3 var(--sans); color: var(--faint); white-space: normal; }
.line-epoch:empty { display: none; }
/* Words that say in text what a canvas only draws, for readers that cannot see it. */
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* Long reading pages */
.reading { padding: clamp(48px, 7vw, 96px) 0 clamp(72px, 9vw, 120px); }
.reading h1 { font-size: clamp(2.25rem, 1.4rem + 3.4vw, 4.5rem); margin-bottom: .35em; }
.reading h2 { margin: 2.2em 0 .6em; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.4rem); }
.reading .rule { border: 1px solid var(--edge); border-radius: var(--r-l); padding: 20px 22px; margin: 1.6em 0; background: var(--surface); box-shadow: var(--sheen); }
.reading .rule h3 { margin-top: 0; }
.reading .rule p:last-child { margin-bottom: 0; }
.reading ol { padding-left: 1.4em; }
.reading li { margin-bottom: .5em; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 1.6em 0 0; padding: 0; list-style: none; }
.toc a { display: inline-flex; min-height: 40px; align-items: center; padding: 0 14px; border: 1px solid var(--edge); border-radius: var(--r-m); text-decoration: none; color: var(--dim); font-size: .9375rem; }
.toc a:hover { color: var(--ink); border-color: var(--edge-strong); }

.note {
  border: 1px solid var(--edge-strong); border-radius: var(--r-l); padding: clamp(20px, 3vw, 32px);
  background: var(--surface); box-shadow: var(--sheen), var(--shadow); color: var(--dim);
}
.note b { color: var(--ink); display: block; margin-bottom: .6em; }
.note p:last-child { margin-bottom: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* Pieces carried over from the old single page */
.reading h2 + p, .reading h2 + div { margin-top: 0; }
.reading .lede { margin-bottom: 1.4em; }
.reading h3.part { font: 560 1.35rem/1.3 var(--serif); color: var(--ink); margin: 2.4em 0 .6em; }
.reading ol li b { color: var(--ink); }
.reading ol { color: var(--dim); }
.reading ol.steps { color: var(--ink); }
.reading .verses p { color: var(--dim); font: 400 1.15rem/1.6 var(--serif); }
.reading .verses b { color: var(--ink); font-weight: 600; }
.reading .invocation { text-align: center; font: 600 clamp(1.2rem, 1rem + .8vw, 1.6rem)/1.4 var(--serif); margin: 2.6em 0; }
.reading .where { font-family: var(--mono); font-size: .9375rem; color: var(--dim); }
.reading table { width: 100%; border-collapse: collapse; font-size: .9375rem; margin: 1em 0 1.4em; }
.reading th, .reading td { text-align: left; vertical-align: top; padding: 12px 10px; border-bottom: 1px solid var(--edge); }
.reading thead th { color: var(--faint); font-size: var(--small); font-weight: 600; }
.reading td a { display: block; margin-bottom: 6px; font-family: var(--mono); font-size: .875rem; }
.reading td .form { font-family: var(--sans); color: var(--faint); margin-right: 6px; }
.reading .guess { display: block; margin-top: 4px; font-size: var(--small); color: var(--ok); font-weight: 400; }
.pick { margin: 1.4em 0 2em; }
.pick p { color: var(--dim); }
.pick label { display: block; font-weight: 600; margin: 1.1em 0 .4em; }
.pick select {
  width: 100%; min-height: 44px; padding: 0 12px; border-radius: var(--r-m);
  background: var(--raised); color: var(--ink); border: 1px solid var(--edge-strong); font: inherit;
}
.invites { list-style: none; padding: 0; margin: 1.6em 0; display: grid; gap: 14px; }
.invites li { min-width: 0; }
.invites p { margin: 6px 2px 0; font-size: .9375rem; }
.actions.left { justify-content: flex-start; margin-top: 1.6em; }