/* The PowMachina explorer — the same palette and the same typeface as powmachina.com.
 *
 * No accent colour. The only things that set what matters apart from the background here are contrast,
 * line weight and area. Lane C and G are not told apart by colour but by a mark — a colour would have
 * to be invented on a monochrome page and would not work with colour blindness anyway.
 *
 * No JavaScript. The page is finished the moment it arrives.
 */

@font-face {
  font-family: "Plex Sans";
  src: url("/fonts/plexsans-var.woff2") format("woff2-variations");
  font-weight: 100 700;
  font-display: swap;
}
@font-face {
  font-family: "Plex Mono";
  src: url("/fonts/plexmono-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Plex Mono";
  src: url("/fonts/plexmono-500.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  --ink: #0a0a0a;
  --ink-2: #454545;
  --ink-3: #7a7a7a;
  --paper: #ffffff;
  --paper-2: #f4f4f4;
  --rule: #d8d8d8;
  --rule-strong: #0a0a0a;

  --sans: "Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  /* The same gutter as the site — the content has to line up under the shared header's logo. */
  --gutter: clamp(1.25rem, 5vw, 5rem);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #fafafa;
    --ink-2: #b4b4b4;
    --ink-3: #7a7a7a;
    --paper: #0a0a0a;
    --paper-2: #151515;
    --rule: #2c2c2c;
    --rule-strong: #fafafa;
  }
}

:root[data-theme="dark"] {
  --ink: #fafafa;
  --ink-2: #b4b4b4;
  --ink-3: #7a7a7a;
  --paper: #0a0a0a;
  --paper-2: #151515;
  --rule: #2c2c2c;
  --rule-strong: #fafafa;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  /* rem, not px — when rem grows on a large monitor, the explorer's text has to grow too. */
  font-size: 0.9375rem;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

a { color: inherit; text-decoration-color: var(--rule); text-underline-offset: 2px; }
a:hover { text-decoration-color: currentColor; }
a:focus-visible { outline: 2px solid var(--rule-strong); outline-offset: 2px; }

.wrap {
  max-width: 78rem;
  margin: 0 auto;
  padding-inline: var(--gutter);
  padding-block: 0 4rem;
}

/* ── the hero and the tabs ────────────────────────────────────
 *
 * The global header (the logo, the site's sections, the theme switcher) does NOT belong here — it is
 * in /site-header.css, which is shared by the site and the explorer. Here there is only what is the
 * explorer's: the page title and the second level of navigation. */

.hero { padding-block: clamp(2rem, 6vw, 3.5rem) 1.5rem; }
/* The tabs and the search in one row: the tabs say where in the explorer a person is, the search is a
 * shortcut to anywhere. On a narrow display they wrap under each other. */
.tabs-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem 2rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 1.75rem;
}
.tabs-row .site-tabs { border-bottom: 0; margin-bottom: -1px; }

form.search {
  display: flex;
  flex: 1 1 22rem;
  max-width: 34rem;
  margin: 0 0 0.6rem auto;
  border: 1px solid var(--rule-strong);
}
form.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  padding: 0.55rem 0.8rem;
  font-family: var(--mono);
  font-size: 0.875rem;
  background: var(--paper);
  color: var(--ink);
}
form.search input:focus { outline: none; }
form.search:focus-within { box-shadow: inset 0 0 0 1px var(--rule-strong); }
form.search button {
  border: 0;
  border-left: 1px solid var(--rule-strong);
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-size: 0.875rem;
  padding: 0.55rem 1.1rem;
  cursor: pointer;
}
form.search button:hover { background: var(--ink-2); }

/* ── the status row ───────────────────────────────────────── */

.chainbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0 2rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  color: var(--ink-2);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.75rem;
  margin-bottom: 2rem;
}
.chainbar b { font-weight: 500; color: var(--ink); }

/* ── the sections and tables ──────────────────────────────── */

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}
h2 {
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin: 2.5rem 0 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--rule);
}
/* The first h2 right under the chainbar does not need large spacing. */
.chainbar + h2 { margin-top: 0; }
h2 .more { float: right; text-transform: none; letter-spacing: 0; }

.scroll { overflow-x: auto; }

table { border-collapse: collapse; width: 100%; font-size: 0.875rem; }
th {
  text-align: left;
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  padding: 0.4rem 0.75rem 0.4rem 0;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}
td {
  padding: 0.45rem 0.75rem 0.45rem 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: baseline;
}
tr:last-child td { border-bottom: 0; }
td:last-child, th:last-child { padding-right: 0; }
.num { text-align: right; font-family: var(--mono); white-space: nowrap; }
.mono { font-family: var(--mono); }
.dim { color: var(--ink-3); }

/* ── the property list (a block's or transaction's detail) ── */

dl.props { margin: 0; display: grid; grid-template-columns: max-content 1fr; }
dl.props dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  padding: 0.45rem 1.5rem 0.45rem 0;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}
dl.props dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.875rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--rule);
  overflow-wrap: anywhere;
}
dl.props dt:last-of-type, dl.props dd:last-of-type { border-bottom: 0; }

/* ── stuha blokov ─────────────────────────────────────────── */

/* The chain of recent blocks, the newest on the left. It scrolls sideways — with the wheel, the
 * trackpad, the scrollbar and the keyboard (the container has a tabindex). Without JavaScript:
 * horizontal scrolling and snapping are something the browser does itself, and the page therefore
 * stays finished the moment it arrives. */
.ribbon {
  margin: 1.5rem 0 0.6rem;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  padding-bottom: 0.5rem;
}
.ribbon:focus-visible { outline: 2px solid var(--rule-strong); outline-offset: 3px; }
.ribbon-track {
  display: flex;
  align-items: flex-start;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  width: max-content;
}
.ribbon-track li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  scroll-snap-align: start;
}
/* The connector between blocks — a chain, not a list. It lies in the gap to the left of a chip (that
 * gap is made by the chip's `margin-left`), so nothing hangs after the last one. */
.ribbon-track li + li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2.1rem;
  width: 0.9rem;
  border-top: 1px solid var(--rule);
}
.chip {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.15rem;
  width: 9.5rem;
  min-height: 4.2rem;
  padding: 0.55rem 0.7rem;
  margin-left: 0.9rem;
  border: 1px solid var(--rule-strong);
  text-decoration: none;
  color: inherit;
}
.ribbon-track li:first-child .chip { margin-left: 0; }
.chip:hover, .chip:focus-visible { background: var(--paper-2); }
.chip.lane-tag.lane-G { background: var(--ink); color: var(--paper); }
/* The square before the name: filled = a GPU algorithm, hollow = CPU. A shape, not a colour — on a
 * monochrome page and with colour blindness it works the same. */
.lane-tag i {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.35rem;
  border: 1px solid currentColor;
  vertical-align: -1px;
}
.lane-tag.lane-G i { background: currentColor; }
.chip.lane-G:hover, .chip.lane-G:focus-visible { background: var(--ink-2); }
.chip-h { font-family: var(--mono); font-size: 0.9375rem; }
.chip-a { font-family: var(--mono); font-size: 0.6875rem; opacity: 0.75; }
.chip-m { font-family: var(--mono); font-size: 0.6875rem; opacity: 0.6; }
.chip-age { font-size: 0.6875rem; color: var(--ink-3); }
/* The ribbon: the newest block fades in gently on load. One movement, no loop — blinking "live" dots
 * are exactly what we do not want here. */
.ribbon-track li:first-child .chip { animation: chip-in 520ms cubic-bezier(0.2, 0.8, 0.2, 1) both; }
@keyframes chip-in {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

.ribbon-note {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.5rem;
  margin: 0 0 1.75rem;
  font-size: 0.8125rem;
  color: var(--ink-2);
}
.ribbon-note .swatch {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  margin-right: 0.4rem;
  border: 1px solid var(--rule-strong);
  vertical-align: -1px;
}
.ribbon-note .swatch.solid { background: var(--ink); }
.scroll-hint { margin-left: auto; }
@media (max-width: 40rem) { .scroll-hint { margin-left: 0; } }

/* ── graf hashrate ────────────────────────────────────────── */

/* The chart is the first thing a visitor sees: centred across the full width of the content. It is
 * drawn on the server as SVG (the explorer has no JS) and takes its colours from the page's tokens,
 * so it works in both themes. */
.chart { margin: 0 0 2rem; }
/* The chart's header as a section heading: the name on the left, the range switcher on the right, a rule under both. */
.chart figcaption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.75rem;
  padding-bottom: 0.4rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule);
}
/* The range switcher: ordinary links (?range=…), the page is re-rendered on the server. */
.chart .ranges { display: flex; gap: 0.25rem; margin-left: auto; }
.chart .ranges a {
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-2);
  text-decoration: none;
}
.chart .ranges a:hover { border-color: var(--ink-2); color: var(--ink); }
.chart .ranges a.on { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chart figcaption h2 { margin: 0; padding: 0; border: 0; }
.chart figcaption span { font-size: 0.8125rem; }
.chart svg { display: block; width: 100%; height: auto; }
/* The vertical guides at the time labels and the axis — subtle, so the bands stay the strongest thing. */
.chart .vgrid { stroke: var(--rule); stroke-width: 1; stroke-dasharray: 3 4; }
.chart .axis { stroke: var(--rule); stroke-width: 1; }
.chart .tick { fill: var(--ink-3); font-family: var(--mono); font-size: 11px; }
/* A band = that lane's hashrate. G is solid, C is hatched — the same distinction as on the block tags,
 * readable in black and white and without colour. */
/* The bands are drawn in the full text colour — black on the light theme, white on the dark one. Grey
 * is not used in the chart: the lanes are told apart by fill (solid vs hatched), not by saturation. */
.chart .band { stroke: none; }
.chart .band.lane-G { fill: var(--ink); }
.chart .band.lane-C { fill: url(#cpu-hatch); stroke: var(--ink); stroke-width: 1; }
.chart .hatch { stroke: var(--ink); stroke-width: 1; }
.chart .edge { fill: none; stroke: var(--ink); stroke-width: 1.4; }
.chart .bandlabel { font-family: var(--mono); font-size: 12px; }
.chart .bandlabel.lane-G { fill: var(--paper); }
/* Lane C's label lies on the hatching — an outline in the paper colour makes room around it. */
.chart .bandlabel.lane-C {
  fill: var(--ink);
  stroke: var(--paper);
  stroke-width: 3;
  paint-order: stroke fill;
}
/* The strips under the cursor. Without JavaScript: the hit area is transparent, the label and the guide
 * are revealed on :hover and on :focus-within (reached with the tab key). */
.chart .hit-area { fill: transparent; }
.chart .guide,
.chart .tip { opacity: 0; }
.chart .hit:hover .guide,
.chart .hit:hover .tip,
.chart .hit:focus-within .guide,
.chart .hit:focus-within .tip { opacity: 1; }
.chart .hit:focus { outline: none; }
.chart .guide { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 2 3; }
.chart .tip-box { fill: var(--paper); stroke: var(--ink); stroke-width: 1; }
.chart .tip-t { fill: var(--ink-3); font-family: var(--mono); font-size: 12px; }
.chart .tip-v { fill: var(--ink); font-family: var(--mono); font-size: 14px; }
.chart .tip-v.dim { fill: var(--ink-2); }
.chart .tip-b { fill: var(--ink-3); font-family: var(--mono); font-size: 11px; }

/* The chart reveals itself once on load, from left to right — it is the page's main element. Nothing
 * pretends to be alive while doing it: it is one entrance, not a loop. */
.chart .bands { animation: chart-reveal 900ms ease-out both; }
@keyframes chart-reveal {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1.25rem;
  font-size: 0.8125rem;
  color: var(--ink-2);
  margin-top: 0.5rem;
}
.chart-legend .swatch {
  display: inline-block;
  width: 1.1rem;
  height: 0;
  margin-right: 0.4rem;
  vertical-align: middle;
  border-top: 2px solid var(--ink);
}
.chart-legend .swatch.lane-C { border-top-style: dashed; }

/* ── lane ─────────────────────────────────────────────────── */

.lane-tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--rule-strong);
  padding: 0.05rem 0.4rem;
  white-space: nowrap;
}
.lane-G { background: var(--ink); color: var(--paper); }
.chips { display: flex; gap: 0.3rem; flex-wrap: wrap; }

.lanes { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr)); }
.lane-card { border: 1px solid var(--rule); padding: 1.25rem; }
.lane-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.lane-card .algo { font-size: 0.8125rem; color: var(--ink-3); margin: 0 0 1rem; }
.lane-card dl.props { font-size: 0.8125rem; }
/* A lane's share. The bar is text, neither an image nor JS — but it has to line up, so the window
 * labels have a fixed width and the row is a grid rather than a flow of text. */
.share { font-family: var(--mono); font-size: 0.8125rem; margin-top: 1rem; }
.share-row {
  display: grid;
  grid-template-columns: 2.25rem max-content 4.5rem max-content;
  justify-content: start;
  align-items: baseline;
  gap: 0 0.6rem;
  line-height: 1.7;
}
.share-row .track { white-space: nowrap; }
.share-row > span:nth-child(3) { text-align: right; }

/* ── paging and the footer ────────────────────────────────── */

.pager { display: flex; gap: 1.5rem; margin-top: 1.25rem; font-size: 0.875rem; }
.pager .spacer { margin-left: auto; }

/* .meta is a row of short facts instead of a paragraph. The page should be scannable; what can be said
 * in three words should not be a sentence. */
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.75rem;
  margin: 1.25rem 0 0;
  font-size: 0.875rem;
  color: var(--ink-3);
}
.meta b { font-weight: 500; color: var(--ink); }
.meta a { color: inherit; }
.meta.lead { margin: 0 0 1.5rem; }

/* .lead is a note right under the h1 — without top spacing. A class, not an inline style: an inline
 * style would require 'unsafe-inline' in the CSP. */
.note.lead { margin-top: 0; }

.note {
  border-left: 2px solid var(--rule-strong);
  padding-left: 1rem;
  margin: 2rem 0 0;
  color: var(--ink-2);
  font-size: 0.875rem;
  max-width: 62ch;
}

footer.bot {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1rem;
  font-size: 0.8125rem;
  color: var(--ink-3);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
footer.bot a { color: inherit; }

/* Miners' icons (internal/identicon) and the share mosaic. The only colour on the page, and on
 * purpose: each miner's, drawn from its address — the page itself stays monochrome. */
.identicon { display: inline-block; vertical-align: middle; flex: none; }
a.miner { display: inline-flex; align-items: center; gap: 0.5rem; color: inherit; vertical-align: middle; }
.addr-with-icon { display: flex; align-items: center; gap: 0.75rem; overflow-wrap: anywhere; }
svg.mosaic {
  display: block;
  width: 100%;
  height: 1.5rem;
  margin: 1.25rem 0 1rem;
  border: 1px solid var(--rule);
}
.iconwall {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin: 0 0 1.5rem;
}
.iconwall a { line-height: 0; }

@media (max-width: 40rem) {
  form.search { flex-basis: 100%; max-width: none; margin: 0 0 0.75rem; order: -1; }
  dl.props { grid-template-columns: 1fr; }
  dl.props dt { border-bottom: 0; padding-bottom: 0; }
  dl.props dd { padding-top: 0.15rem; }
}

/* Whoever has animations turned off in their system gets the page finished without movement. */
@media (prefers-reduced-motion: reduce) {
  .chart .bands,
  .ribbon-track li:first-child .chip { animation: none; }
}