/* =============================================================================
   THE STANDARDS LEDGER — homepage stylesheet (index.html)

   Self-contained: index.html loads this file only. classic.html and
   prototype.html keep their own stylesheets.

   Layout    A sheet of ledger paper. One double carmine margin rule runs the
             full height of the page and everything hangs off it. Totals carry
             the accountant's double underline. Sections are ruled, not boxed.
   ========================================================================== */

:root {
  /* cool paper, blue-black ink, carmine ruling */
  --paper:       #f4f6f9;
  --surface:     #ffffff;
  --surface-2:   #e9edf3;
  --ink:         #0e1a30;
  --ink-2:       #37455e;
  --muted:       #5d6b84;
  --rule:        #dce2eb;
  --rule-strong: #b8c2d1;

  --accent:      #1c39c9;
  --accent-soft: #e3e8fb;
  --margin:      #d4283f;

  /* status colours, separate from the accent */
  --ok:          #12794c;
  --soon:        #9a5a00;
  --soon-soft:   #fbf1dc;
  --gone:        #8a93a3;

  /* the one inverted block on the page */
  --panel:       #0e1a30;
  --panel-ink:   #f4f6f9;
  --panel-muted: #a5b1c7;
  --panel-rule:  #27344d;

  --scrim:       rgba(9, 15, 26, .48);
  --shadow:      0 24px 60px -20px rgba(14, 26, 48, .35);

  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body:    "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw:   1240px;
  --gutter: 24px;
  --indent: 36px;
  --rail-w: 232px;
  --code-w: 136px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:       #090f1a;
    --surface:     #101828;
    --surface-2:   #182236;
    --ink:         #e9eef7;
    --ink-2:       #b9c4d8;
    --muted:       #8a97af;
    --rule:        #1f2a40;
    --rule-strong: #33415c;
    --accent:      #93a8ff;
    --accent-soft: #1a2550;
    --margin:      #ff6f7d;
    --ok:          #4fd093;
    --soon:        #f0b34a;
    --soon-soft:   #2a2213;
    --gone:        #6f7b91;
    --panel:       #16223a;
    --panel-ink:   #e9eef7;
    --panel-muted: #93a0b8;
    --panel-rule:  #2a3854;
    --scrim:       rgba(0, 0, 0, .62);
    --shadow:      0 24px 60px -20px rgba(0, 0, 0, .8);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper:       #090f1a;
  --surface:     #101828;
  --surface-2:   #182236;
  --ink:         #e9eef7;
  --ink-2:       #b9c4d8;
  --muted:       #8a97af;
  --rule:        #1f2a40;
  --rule-strong: #33415c;
  --accent:      #93a8ff;
  --accent-soft: #1a2550;
  --margin:      #ff6f7d;
  --ok:          #4fd093;
  --soon:        #f0b34a;
  --soon-soft:   #2a2213;
  --gone:        #6f7b91;
  --panel:       #16223a;
  --panel-ink:   #e9eef7;
  --panel-muted: #93a0b8;
  --panel-rule:  #2a3854;
  --scrim:       rgba(0, 0, 0, .62);
  --shadow:      0 24px 60px -20px rgba(0, 0, 0, .8);
  color-scheme: dark;
}

/* ------------------------------- base ---------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 15px/1.55 var(--body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[hidden] { display: none !important; }
h1, h2, h3, h4, p, ul, dl, dd { margin: 0; }
ul { padding: 0; list-style: none; }
button { font: inherit; color: inherit; -webkit-tap-highlight-color: transparent; }
button:not(:disabled) { cursor: pointer; }
a { color: var(--accent); text-underline-offset: 3px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 200;
  background: var(--ink); color: var(--paper);
  padding: 10px 16px; border-radius: 8px; text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* ------------------------------ top bar -------------------------------- */

.top {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 40;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--rule);
}
.top-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex; align-items: center; gap: 10px;
  background: none; border: 0; padding: 4px 0;
  font: 650 17px/1 var(--display);
  letter-spacing: -.02em;
  white-space: nowrap;
}
.brand svg { width: 26px; height: 26px; flex: none; }
.mark-bg   { fill: var(--ink); }
.mark-rule { stroke: var(--margin); stroke-width: 1.5; fill: none; }
.mark-line { stroke: var(--paper); stroke-width: 2; stroke-linecap: round; fill: none; }

.views { display: flex; gap: 2px; }
.view-tab {
  display: flex; align-items: center; gap: 8px;
  background: none; border: 0; border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px; font-weight: 500; color: var(--muted);
  white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.view-tab svg { display: none; width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; }
.view-tab:hover { color: var(--ink); }
.view-tab[aria-selected="true"] { color: var(--ink); background: var(--surface-2); }

.search-wrap { position: relative; flex: 0 1 340px; min-width: 0; margin-left: auto; }
.search-wrap svg {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; fill: none; stroke: var(--muted); stroke-width: 2; stroke-linecap: round;
  pointer-events: none;
}
#q {
  width: 100%;
  font: inherit; font-size: 14px; color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: 10px;
  padding: 9px 40px 9px 36px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
#q::placeholder { color: var(--muted); }
#q:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.kbd-hint {
  position: absolute; right: 9px; top: 50%; transform: translateY(-50%);
  font: 500 11px/1 var(--mono); color: var(--muted);
  border: 1px solid var(--rule); border-radius: 5px; padding: 4px 6px;
  background: var(--surface-2); pointer-events: none;
}

.icon-btn {
  display: grid; place-items: center; flex: none;
  width: 38px; height: 38px;
  background: none; border: 1px solid var(--rule-strong); border-radius: 10px;
  color: var(--ink-2);
  transition: border-color .15s ease, color .15s ease;
}
.icon-btn:hover { border-color: var(--ink); color: var(--ink); }
.icon-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.icon-btn .half { fill: currentColor; stroke: none; }

/* ------------------------------- page ---------------------------------- */

main {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
  padding-block: 0 72px;
}
main:focus { outline: none; }

/* The ledger margin: a double carmine rule the whole page hangs off. */
@media (min-width: 861px) {
  main { padding-left: calc(var(--gutter) + var(--indent)); }
  main::before {
    content: "";
    position: absolute; top: 0; bottom: 0; left: var(--gutter);
    width: 5px;
    border-inline: 1px solid var(--margin);
    opacity: .55;
    pointer-events: none;
  }
}

#view-home, #workbench { animation: settle .22s ease both; }
@keyframes settle { from { opacity: .4; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ------------------------------- hero ---------------------------------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, .85fr);
  gap: 56px;
  align-items: end;
  padding-block: 64px 56px;
}
.hero-copy { min-width: 0; }

.kicker {
  display: flex; flex-wrap: wrap; gap: 6px 16px;
  font: 500 12px/1.4 var(--mono);
  letter-spacing: .04em;
  color: var(--ink);
  margin-bottom: 22px;
}
.kicker span { color: var(--muted); letter-spacing: 0; }
.kicker b { font-weight: 500; color: var(--ink-2); }

.hero h1 {
  font: 650 clamp(2.1rem, 4.5vw, 3.7rem)/1.02 var(--display);
  letter-spacing: -.035em;
  max-width: 17ch;
  text-wrap: balance;
}
.hero-lede {
  margin-top: 22px;
  max-width: 56ch;
  font-size: 16px; line-height: 1.6;
  color: var(--ink-2);
}

.totals { display: flex; flex-wrap: wrap; gap: 20px 44px; margin-top: 36px; }
.totals button {
  display: flex; flex-direction: column; align-items: flex-start; gap: 8px;
  background: none; border: 0; padding: 0; text-align: left;
}
.totals strong {
  font: 650 34px/1 var(--display);
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  padding-bottom: 5px;
  border-bottom: 4px double var(--ink);   /* the double underline of a final total */
  transition: border-color .15s ease, color .15s ease;
}
.totals span { font-size: 13px; color: var(--muted); }
.totals button:hover strong { color: var(--accent); border-color: var(--accent); }

.next {
  background: var(--panel);
  color: var(--panel-ink);
  border-radius: 16px;
  padding: 28px;
  display: flex; flex-direction: column; gap: 6px;
  min-width: 0;
}
.next-label { font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--panel-muted); }
.next-days { display: flex; align-items: baseline; gap: 10px; margin-top: 14px; }
.next-days strong {
  font: 700 clamp(64px, 8vw, 96px)/.86 var(--display);
  letter-spacing: -.05em;
  font-variant-numeric: tabular-nums;
}
.next-days span { font: 500 18px/1 var(--display); color: var(--panel-muted); }
.next-date { font-size: 17px; font-weight: 600; margin-top: 14px; }
.next-note { font-size: 13.5px; line-height: 1.5; color: var(--panel-muted); }
.next-link {
  align-self: flex-start;
  margin-top: 18px; padding: 10px 0 0;
  width: 100%; text-align: left;
  background: none; border: 0; border-top: 1px solid var(--panel-rule);
  font-size: 14px; font-weight: 500; color: var(--panel-ink);
}
.next-link span { display: inline-block; transition: transform .15s ease; }
.next-link:hover span { transform: translateX(4px); }
.next :focus-visible { outline-color: var(--panel-ink); }

/* ------------------------- overview sections --------------------------- */

.block { border-top: 2px solid var(--ink); padding-block: 22px 48px; }
.block-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 24px; }
.block-head h2, .col h2 {
  font: 650 20px/1.2 var(--display);
  letter-spacing: -.02em;
}
.block-head p { font-size: 13.5px; color: var(--muted); }

/* --- runway: a time axis drawn to scale, flags at each effective date --- */
.runway-scroll { overflow-x: auto; margin-top: 8px; }
.runway {
  position: relative;
  min-width: 640px;
  height: 214px;
  --axis: 40px;            /* distance of the axis from the bottom */
}
.runway::before {           /* the axis */
  content: ""; position: absolute; left: 0; right: 0; bottom: var(--axis);
  height: 1px; background: var(--rule-strong);
}
/* the scale stops short of the right edge so the last flag has room */
.runway-plot { position: absolute; inset: 0 140px 0 0; }
.runway-elapsed { position: absolute; left: 0; bottom: calc(var(--axis) - 1px); height: 3px; background: var(--ink); }
.runway-tick {
  position: absolute; bottom: 0; height: var(--axis);
  padding: 12px 0 0 7px;
  border-left: 1px solid var(--rule-strong);
  font: 500 12px/1 var(--mono); color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.runway-today {
  position: absolute; bottom: 0; height: calc(var(--axis) + 12px);
  border-left: 1px solid var(--margin);
  padding: 0 0 0 6px;
  display: flex; align-items: flex-end;
  font: 500 11px/1 var(--mono); color: var(--margin); white-space: nowrap;
}
.runway-today.flip { border-left: 0; border-right: 1px solid var(--margin); padding: 0 6px 0 0; transform: translateX(-100%); }

.flag {
  position: absolute; bottom: var(--axis);
  display: flex; flex-direction: column; align-items: flex-start;
  padding: 0 0 var(--stem) 0;
  background: none; border: 0;
}
.flag::before {             /* stem */
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 1px; height: var(--stem); background: var(--ink);
}
.flag::after {              /* foot on the axis */
  content: ""; position: absolute; left: -4px; bottom: -5px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--ink);
}
.flag-box {
  display: flex; flex-direction: column; gap: 3px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--ink);
  border-radius: 0 8px 8px 8px;
  text-align: left; white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.flag-box b { font: 600 13px/1.2 var(--mono); font-variant-numeric: tabular-nums; }
.flag-box small { font-size: 12px; color: var(--muted); }
.flag:hover .flag-box { background: var(--surface-2); }
.flag[aria-pressed="true"] .flag-box { background: var(--ink); color: var(--paper); }
.flag[aria-pressed="true"] .flag-box small { color: inherit; opacity: .72; }
.flag[aria-pressed="true"]::after { background: var(--ink); }

#runway-list { margin-top: 20px; }
#runway-list h3 { font: 600 14px/1.4 var(--body); color: var(--ink-2); padding-bottom: 10px; border-bottom: 1px solid var(--rule-strong); }
.runway-empty { font-size: 14px; color: var(--muted); padding-top: 14px; }

/* a compact ledger line, used on the overview */
.mini-row {
  display: grid; grid-template-columns: var(--code-w) minmax(0, 1fr);
  gap: 20px; align-items: baseline;
  width: 100%; text-align: left;
  background: none; border: 0; border-bottom: 1px solid var(--rule);
  padding: 12px 8px;
  transition: background .12s ease;
}
.mini-row:hover { background: var(--surface); }
.mini-row .c { font: 600 13px/1.4 var(--mono); }
.mini-row .t { display: block; font-size: 14.5px; font-weight: 550; line-height: 1.35; }
.mini-row .d { display: block; font-size: 13px; color: var(--muted); margin-top: 2px; }

/* --- three ruled columns --- */
.trio {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}
.col { border-top: 2px solid var(--ink); padding-top: 22px; min-width: 0; }
.col h2 { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.tally { font: 500 12px/1 var(--mono); color: var(--muted); letter-spacing: 0; }
.fine { font-size: 12.5px; line-height: 1.5; color: var(--muted); margin-top: 14px; }

.bars { display: flex; flex-direction: column; }
.bar {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px;
  width: 100%; text-align: left;
  background: none; border: 0; padding: 9px 0;
}
.bar .l { font-size: 14px; color: var(--ink-2); }
.bar .n { font: 500 13px/1.5 var(--mono); font-variant-numeric: tabular-nums; }
.bar .track { grid-column: 1 / -1; height: 4px; background: var(--surface-2); border-radius: 2px; overflow: hidden; }
.bar .fill { display: block; height: 100%; background: var(--ink); border-radius: 2px; transition: background .15s ease; }
.bar:hover .l { color: var(--ink); }
.bar:hover .fill { background: var(--accent); }

.changelog { display: flex; flex-direction: column; }
.cl-item { display: grid; grid-template-columns: 1fr; gap: 3px; padding: 11px 0; border-bottom: 1px solid var(--rule); }
.cl-item:first-child { padding-top: 0; }
.cl-item:nth-child(n+5) { display: none; }
.cl-date { font: 500 12px/1.4 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.cl-text { font-size: 14px; line-height: 1.5; color: var(--ink-2); }
.cl-text button {
  background: none; border: 0; padding: 0;
  font: 600 12.5px/1 var(--mono); color: var(--accent);
  text-decoration: underline; text-underline-offset: 3px;
}

.saved-row { display: flex; align-items: flex-start; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--rule); }
.saved-row:first-child { padding-top: 0; }
.saved-check {
  flex: none; width: 22px; height: 22px; margin-top: 1px;
  display: grid; place-items: center;
  background: var(--surface); border: 1.5px solid var(--rule-strong); border-radius: 6px;
  font-size: 13px; line-height: 1; color: transparent;
}
.saved-check[aria-pressed="true"] { background: var(--ok); border-color: var(--ok); color: var(--surface); }
.saved-open { flex: 1; min-width: 0; background: none; border: 0; padding: 0; text-align: left; }
.saved-open .c { display: block; font: 600 12.5px/1.4 var(--mono); }
.saved-open .t { display: block; font-size: 14px; line-height: 1.4; color: var(--ink-2); }
.saved-open:hover .t { color: var(--ink); }
.saved-row.is-done .saved-open .t { color: var(--muted); }
.saved-remove { flex: none; background: none; border: 0; padding: 2px 4px; font-size: 18px; line-height: 1; color: var(--muted); }
.saved-remove:hover { color: var(--margin); }
.saved-empty { font-size: 14px; line-height: 1.55; color: var(--ink-2); }
.text-btn {
  margin-top: 12px; background: none; border: 0; padding: 0;
  font-size: 14px; font-weight: 600; color: var(--accent);
}
.text-btn:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ------------------------------ workbench ------------------------------ */

.page-head { padding-block: 44px 28px; }
.page-head h1 { font: 650 clamp(1.9rem, 3.4vw, 2.6rem)/1.05 var(--display); letter-spacing: -.03em; }
.page-head p { margin-top: 10px; font-size: 15px; color: var(--muted); max-width: 60ch; }

.shell {
  display: grid;
  grid-template-columns: var(--rail-w) minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}
.content { min-width: 0; }
.filters-toggle { display: none; }

.rail {
  position: sticky; top: calc(88px + env(safe-area-inset-top, 0px));
  max-height: calc(100vh - 112px); overflow-y: auto;
  display: flex; flex-direction: column; gap: 26px;
  padding-right: 4px;
}
.rail-group h3, .rail-group summary {
  font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 8px;
}
.rail-group summary { cursor: pointer; margin-bottom: 0; padding: 4px 0; }
.rail-group details[open] summary { margin-bottom: 10px; }
.rail-list { display: flex; flex-direction: column; gap: 2px; }
.rail-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%; text-align: left;
  background: none; border: 0; border-radius: 8px;
  padding: 7px 10px; margin-left: -10px;
  font-size: 14px; color: var(--ink-2);
  transition: background .12s ease, color .12s ease;
}
.rail-item:hover { background: var(--surface-2); color: var(--ink); }
.rail-item[aria-pressed="true"] { background: var(--ink); color: var(--paper); font-weight: 500; }
.rail-count { font: 500 12px/1 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.rail-item[aria-pressed="true"] .rail-count { color: inherit; opacity: .7; }

.chip-cloud { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 100px;
  padding: 4px 11px; font-size: 12.5px; color: var(--ink-2);
  transition: border-color .12s ease;
}
.chip:hover { border-color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.rail-reset {
  align-self: flex-start; background: none; border: 0; padding: 0;
  font-size: 13px; color: var(--muted);
  text-decoration: underline; text-underline-offset: 3px;
}
.rail-reset:hover { color: var(--ink); }

/* ------------------------------- register ------------------------------ */

.result-bar {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px;
  padding-bottom: 12px; border-bottom: 2px solid var(--ink);
}
.result-count { font: 500 12px/1.4 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.result-count b { color: var(--ink); font-weight: 600; }
.sort-note { font-size: 13px; color: var(--muted); }

.ledger { display: flex; flex-direction: column; }
.group-head { display: flex; align-items: baseline; gap: 12px; padding: 36px 0 10px; border-bottom: 1px solid var(--rule-strong); }
.group-head:first-child { padding-top: 22px; }
.group-head h2 { font: 650 17px/1.2 var(--display); letter-spacing: -.015em; }
.group-head .hr { flex: 1; }
.group-head .n { font: 500 12px/1 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }

.row {
  display: grid;
  grid-template-columns: var(--code-w) minmax(0, 1fr) auto;
  gap: 20px; align-items: start;
  width: 100%; text-align: left;
  background: none; border: 0; border-bottom: 1px solid var(--rule);
  padding: 14px 10px;
  transition: background .12s ease;
}
.row:hover { background: var(--surface); }
.row.is-open { background: var(--accent-soft); }
.row-code { font: 600 13px/1.5 var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-code .alt { display: block; font-weight: 400; font-size: 12px; color: var(--muted); }
.row-main { min-width: 0; }
.row-title { display: block; font-size: 15px; font-weight: 550; line-height: 1.4; }
.row-sub {
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
  font-size: 13.5px; color: var(--muted); margin-top: 2px;
}
.row-aside { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; padding-top: 1px; }
.eff-date { font: 500 12px/1.5 var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* status: a coloured dot and plain words, not a lozenge */
.pill { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--ink-2); white-space: nowrap; }
.pill::before { content: ""; width: 7px; height: 7px; border-radius: 50%; flex: none; background: var(--ok); }
.pill--future::before     { background: var(--soon); }
.pill--sunsetting::before { background: none; box-shadow: inset 0 0 0 2px var(--soon); }
.pill--superseded { color: var(--muted); }
.pill--superseded::before { background: var(--gone); }

.empty { padding: 56px 20px; text-align: center; color: var(--muted); font-size: 14px; }
.empty strong { display: block; font: 650 20px/1.3 var(--display); color: var(--ink); margin-bottom: 6px; }

/* ---------------------------- effective dates -------------------------- */

.tl { display: flex; flex-direction: column; }
.tl-year {
  display: grid; grid-template-columns: 132px minmax(0, 1fr); gap: 24px;
  border-top: 1px solid var(--rule-strong); padding: 26px 0 30px;
}
.tl-year:first-child { border-top: 2px solid var(--ink); }
.tl-label { font: 650 40px/1 var(--display); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.tl-label span { display: block; margin-top: 8px; font: 500 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.tl-year.is-now .tl-label { color: var(--accent); }
.tl-items { display: flex; flex-direction: column; min-width: 0; }
.tl-item {
  display: grid; grid-template-columns: var(--code-w) minmax(0, 1fr); gap: 20px; align-items: baseline;
  width: 100%; text-align: left;
  background: none; border: 0; border-bottom: 1px solid var(--rule);
  padding: 12px 8px;
  transition: background .12s ease;
}
.tl-item:first-child { padding-top: 4px; }
.tl-item:hover { background: var(--surface); }
.tl-item .c { font: 600 13px/1.5 var(--mono); white-space: nowrap; }
.tl-item.is-amber .c { color: var(--soon); }
.tl-item .t { display: block; font-size: 15px; font-weight: 550; line-height: 1.4; }
.tl-item .d { display: block; font-size: 13.5px; color: var(--muted); margin-top: 2px; }

/* -------------------------------- bridge ------------------------------- */

.bridge-intro { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 40px; margin-bottom: 28px; }
.bridge-intro p { font-size: 14.5px; line-height: 1.6; color: var(--ink-2); }
.bridge-intro strong { color: var(--ink); }

.table-scroll { overflow-x: auto; border-top: 2px solid var(--ink); }
table.bridge { border-collapse: collapse; width: 100%; min-width: 620px; font: inherit; }
table.bridge th {
  font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); text-align: left; white-space: nowrap;
  padding: 12px 10px; border-bottom: 1px solid var(--rule-strong);
}
table.bridge td { padding: 11px 10px; border-bottom: 1px solid var(--rule); font-size: 14.5px; vertical-align: top; }
table.bridge tbody tr { cursor: pointer; transition: background .12s ease; }
table.bridge tbody tr:hover { background: var(--surface); }
td.code-cell { font: 600 13px/1.6 var(--mono); white-space: nowrap; font-variant-numeric: tabular-nums; }
td.code-cell.au { font-weight: 400; color: var(--ink-2); }
td.code-cell.au.same::before { content: "= "; color: var(--margin); }

/* -------------------------------- drawer ------------------------------- */

.scrim { position: fixed; inset: 0; z-index: 60; background: var(--scrim); opacity: 0; transition: opacity .2s ease; }
.scrim.show { opacity: 1; }

.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 61;
  width: min(600px, 100%);
  display: flex; flex-direction: column;
  background: var(--surface);
  border-left: 1px solid var(--rule);
  box-shadow: var(--shadow);
  transform: translateX(100%);
  transition: transform .24s cubic-bezier(.2, .7, .2, 1);
}
.drawer.show { transform: none; }
.drawer-head {
  display: flex; align-items: flex-start; gap: 16px;
  padding: calc(26px + env(safe-area-inset-top, 0px)) 30px 22px;
  border-bottom: 1px solid var(--rule);
}
.drawer-head .grow { flex: 1; min-width: 0; }
.drawer-codes { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.drawer-code { font: 600 13px/1 var(--mono); padding: 6px 10px; border-radius: 6px; background: var(--ink); color: var(--surface); }
.drawer-code.au { background: none; color: var(--ink-2); box-shadow: inset 0 0 0 1px var(--rule-strong); }
.drawer-title { font: 650 26px/1.15 var(--display); letter-spacing: -.025em; text-wrap: balance; }
.drawer-close {
  flex: none; width: 38px; height: 38px;
  background: none; border: 1px solid var(--rule-strong); border-radius: 10px;
  font-size: 20px; line-height: 1; color: var(--ink-2);
}
.drawer-close:hover { border-color: var(--ink); color: var(--ink); }
.drawer-body { flex: 1; overflow-y: auto; padding: 22px 30px calc(30px + env(safe-area-inset-bottom, 0px)); }

.drawer-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 10px;
  padding: 9px 14px; font-size: 14px; font-weight: 500; color: var(--ink);
  transition: border-color .15s ease, background .15s ease;
}
.btn:hover { border-color: var(--ink); }
.btn[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--surface); }

.fact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; border-top: 2px solid var(--ink); margin-bottom: 28px; }
.fact { padding: 12px 0; border-bottom: 1px solid var(--rule); }
.fact.span { grid-column: 1 / -1; }
.fact dt { font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.fact dd { font-size: 14.5px; line-height: 1.5; }

.sec { margin-bottom: 28px; }
.sec > h4 { font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.lede { font-size: 16.5px; line-height: 1.6; }
.sec ul { display: flex; flex-direction: column; gap: 10px; }
.sec ul li { position: relative; padding-left: 20px; font-size: 14.5px; line-height: 1.6; color: var(--ink-2); }
.sec ul li::before { content: ""; position: absolute; left: 2px; top: .72em; width: 8px; height: 1.5px; background: var(--ink); }

.watch-box { background: var(--soon-soft); border-radius: 10px; padding: 16px 18px; }
.watch-box h4 { font: 600 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--soon); margin-bottom: 6px; }
.watch-box p { font-size: 14.5px; line-height: 1.6; }

.rel-list { display: flex; flex-wrap: wrap; gap: 6px; }
.rel-btn { font-size: 13px; color: var(--ink-2); background: var(--surface-2); border: 1px solid transparent; border-radius: 6px; padding: 5px 10px; }
button.rel-btn { font: 500 12.5px/1.5 var(--mono); color: var(--ink); background: none; border-color: var(--rule-strong); }
button.rel-btn:hover { border-color: var(--ink); }

.src-link {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--accent); color: var(--surface);
  border-radius: 10px; padding: 12px 18px;
  font-size: 14.5px; font-weight: 600; text-decoration: none;
}
.src-link .arrow { transition: transform .15s ease; }
.src-link:hover .arrow { transform: translateX(4px); }
.disclaimer { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--rule); font-size: 12.5px; line-height: 1.55; color: var(--muted); }

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

.foot { border-top: 1px solid var(--rule); }
.foot-in {
  max-width: var(--maxw); margin: 0 auto;
  padding-inline: var(--gutter); padding-block: 36px 48px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 32px 56px;
}
.foot h2 { font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.foot ul { display: flex; flex-direction: column; gap: 8px; }
.foot li { font-size: 14px; }
.foot p { font-size: 13.5px; line-height: 1.6; color: var(--muted); max-width: 62ch; }
.foot p + p { margin-top: 10px; }
@media (min-width: 861px) { .foot-in { padding-left: calc(var(--gutter) + var(--indent)); } }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 100;
  background: var(--ink); color: var(--paper);
  border-radius: 10px; padding: 12px 18px;
  font-size: 14px; max-width: calc(100vw - 32px); text-align: center;
  box-shadow: var(--shadow);
}

/* ------------------------------ responsive ----------------------------- */

@media (max-width: 1080px) {
  .hero { grid-template-columns: minmax(0, 1.3fr) minmax(260px, 1fr); gap: 36px; }
  .trio { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .trio .col:last-child { grid-column: 1 / -1; }
  .shell { gap: 32px; --rail-w: 204px; }
}

@media (max-width: 860px) {
  :root { --gutter: 16px; --code-w: 112px; }

  /* the bar stops being sticky; the sections move to a thumb-reach tab bar */
  .top { position: static; -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--paper); }
  .top-in { flex-wrap: wrap; gap: 12px; padding-block: 12px; }
  .brand { margin-right: auto; }
  .search-wrap { order: 3; flex: 1 1 100%; margin-left: 0; }
  #q { font-size: 16px; padding-block: 10px; }
  .kbd-hint { display: none; }

  .views {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
    padding: 6px 8px calc(6px + env(safe-area-inset-bottom, 0px));
    background: var(--surface);
    border-top: 1px solid var(--rule-strong);
  }
  .view-tab { flex-direction: column; gap: 4px; padding: 7px 2px; font-size: 11px; white-space: normal; text-align: center; line-height: 1.2; }
  .view-tab svg { display: block; }
  .foot { padding-bottom: 76px; }
  .toast { bottom: calc(88px + env(safe-area-inset-bottom, 0px)); }

  .hero { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-block: 36px 40px; }
  .totals { gap: 18px 32px; }
  .totals strong { font-size: 28px; }
  .trio { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .trio .col:last-child { grid-column: auto; }

  .page-head { padding-block: 28px 20px; }
  .shell { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .filters-toggle {
    display: inline-flex; align-items: center; justify-self: start;
    background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 10px;
    padding: 9px 14px; font-size: 14px; font-weight: 500;
  }
  .filters-toggle[aria-expanded="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
  .rail { display: none; position: static; max-height: none; gap: 20px; padding: 0 0 8px; }
  .rail.is-open { display: flex; }
  .rail-list { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .rail-item { width: auto; margin-left: 0; border: 1px solid var(--rule-strong); border-radius: 100px; padding: 7px 12px; font-size: 13px; }
  .rail-item[aria-pressed="true"] { border-color: var(--ink); }
  .chip { padding: 7px 12px; font-size: 13px; }

  .row { grid-template-columns: minmax(0, 1fr); gap: 4px; padding: 14px 4px; }
  .row-code .alt { display: inline; margin-left: 10px; }
  .row-sub { -webkit-line-clamp: 2; }
  .row-aside { flex-direction: row; align-items: center; gap: 14px; margin-top: 4px; }
  .mini-row, .tl-item { grid-template-columns: minmax(0, 1fr); gap: 2px; padding-inline: 4px; }
  .tl-year { grid-template-columns: minmax(0, 1fr); gap: 14px; padding: 22px 0 24px; }
  .tl-label { font-size: 32px; }
  .tl-label span { display: inline; margin-left: 12px; }
  .bridge-intro { grid-template-columns: minmax(0, 1fr); }
  .foot-in { grid-template-columns: minmax(0, 1fr); }

  .drawer-head { padding: calc(20px + env(safe-area-inset-top, 0px)) 20px 18px; }
  .drawer-body { padding: 20px 20px calc(24px + env(safe-area-inset-bottom, 0px)); }
  .drawer-title { font-size: 22px; }
  .fact-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (forced-colors: active) {
  .pill::before, .bar .fill, .flag::after { forced-color-adjust: none; }
}