/* Daily Loop in the flashtea.dev look (flashtea-infra/site/style.css): graphite on paper, tea amber as the
   one colour, IBM Plex, light only. The band at the top stays dark in both themes and carries the lead story; below it each
   section has a mono label rail on the left and its stories in a ruled grid. */
:root {
  --paper: #f6f6f3; --surface: #ffffff; --ink: #17181a; --ink-2: #44474a; --muted: #63686d; --rule: #dcdbd4;
  --accent: #9a560b; --c-price: #c47a12; --c-avg: #5f6b78;
  --band-bg: #17181a; --band-ink: #f0efe9; --band-muted: #a3a49d; --band-rule: #2f302c; --band-accent: #e9a445;
  --maxw: 1180px;
  --display: "IBM Plex Sans Condensed", "Arial Narrow", sans-serif;
  --body: "IBM Plex Sans", -apple-system, "Segoe UI", system-ui, sans-serif;
  --serif: "IBM Plex Serif", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* header */
.top { border-bottom: 1px solid var(--rule); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
/* page switcher, the same on today, ops and paper: "flashtea / <page>", the page name opens the list */
.brand { display: flex; align-items: center; gap: 7px; font-weight: 600; white-space: nowrap; }
.brand > a { text-decoration: none; }
.brand .sep { color: var(--muted); font-weight: 400; }
.switch { position: relative; }
.switch summary { list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-weight: 400; }
.switch summary::-webkit-details-marker { display: none; }
.switch summary::after { content: ""; width: 5px; height: 5px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(45deg); }
.switch[open] summary::after { transform: translateY(1px) rotate(-135deg); }
.switch summary:hover, .switch[open] summary { color: var(--ink); }
.menu { position: absolute; left: -12px; top: calc(100% + 10px); z-index: 30; min-width: 230px; padding: 4px 0; background: var(--panel, var(--surface, #fff)); border: 1px solid var(--rule); border-radius: 3px; box-shadow: 0 8px 24px rgba(23, 24, 26, .08); font-size: 14px; font-weight: 400; letter-spacing: 0; }
.menu a { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; padding: 7px 12px; color: var(--ink); text-decoration: none; }
.menu a:hover { background: var(--paper); }
.menu a[aria-current="page"] { font-weight: 600; box-shadow: inset 2px 0 var(--accent); }
.menu a.pub { border-top: 1px solid var(--rule); margin-top: 4px; padding-top: 9px; }
.menu small { font: 12px var(--mono); color: var(--muted); }
.brand { font-size: 17px; letter-spacing: -.01em; }
.top .wrap > nav { display: flex; gap: 22px; font-size: 14.5px; }
.top .wrap > nav a { text-decoration: none; color: var(--ink-2); padding-block: 4px; border-bottom: 1px solid transparent; }
.top .wrap > nav a:hover { color: var(--ink); border-color: var(--rule); }
.top .wrap > nav a[aria-current="page"] { color: var(--ink); border-color: var(--accent); }

/* band: the lead story */
.band { background: var(--band-bg); color: var(--band-ink); }
.band .wrap { padding-block: 34px 40px; }
.band .meta { margin: 0 0 22px; font: 12.5px var(--mono); color: var(--band-muted); }
.lead { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.band .kicker { margin: 0 0 10px; font: 12.5px var(--mono); color: var(--band-accent); }
.band h1 { font-family: var(--display); font-weight: 600; font-size: clamp(26px, 3.2vw, 38px); line-height: 1.12; letter-spacing: -.01em; margin: 0; text-wrap: balance; }
.band h1.solo { font-size: clamp(32px, 4.4vw, 50px); }
.band h1 a { text-decoration: none; }
.band h1 a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.band .dek { font-family: var(--serif); font-size: 16.5px; line-height: 1.6; color: var(--band-ink); margin: 2px 0 0; }
.band .meta + .solo + .dek { color: var(--band-muted); font-family: var(--body); margin-top: 12px; }
.band .why { color: var(--band-muted); }
.band .why span { color: var(--band-accent); }
.band .byline .src { color: var(--band-accent); }
.band .byline .followup { color: var(--band-muted); }

/* sections */
.beat { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 32px; padding-block: 30px; border-top: 1px solid var(--rule); }
main > .beat:first-child { border-top: 0; }
.label { margin: 0; padding-top: 2px; font: 400 13px/1.6 var(--mono); color: var(--ink); }
.label span { display: block; color: var(--muted); margin-top: 2px; }
.beat-body { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 0 40px; align-items: start; }
.beat-body.solo { grid-template-columns: minmax(0, 1fr); }
.beat-body .chart { grid-column: 1 / -1; }
.stories { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px 36px; }
.story { padding: 0; }
.hed { font-family: var(--display); font-weight: 600; font-size: 20px; line-height: 1.22; letter-spacing: -.005em; margin: 0 0 8px; text-wrap: pretty; }
.hed-a { text-decoration: none; }
a.hed-a:hover { color: var(--accent); }
.dek { font-family: var(--serif); font-size: 15.5px; line-height: 1.6; color: var(--ink-2); margin: 0 0 10px; }
.why { font-size: 14px; line-height: 1.5; color: var(--muted); margin: 14px 0 10px; }
.why span { display: block; font: 12px var(--mono); color: var(--accent); margin-bottom: 2px; }
.byline { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 0; font: 12px var(--mono); }
.src { color: var(--accent); text-decoration: none; }
a.src:hover { text-decoration: underline; }
.followup { color: var(--muted); text-decoration: none; }
a.followup:hover { color: var(--ink); }

/* ahead: dated events, as a ruled list */
.ahead h3 { font: 400 12.5px var(--mono); color: var(--muted); margin: 0; padding: 2px 0 6px; }
.ahead ul { list-style: none; margin: 0; padding: 0; }
.ahead li { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 12px; padding: 7px 0; border-top: 1px solid var(--rule); font-size: 14px; line-height: 1.5; color: var(--ink-2); }
.ahead li:first-child { border-top: 0; }
.ahead .when { font: 12.5px/1.9 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.ahead a { text-underline-offset: 3px; }

/* bitcoin chart */
.chart { margin: 34px 0 0; }
.chart figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 20px; font: 12.5px var(--mono); color: var(--muted); }
.legend { display: inline-flex; align-items: center; gap: 6px; }
.key { display: inline-block; width: 12px; height: 3px; margin-left: 10px; }
.key:first-child { margin-left: 0; }
.chart-wrap { position: relative; margin-top: 10px; }
.chart-wrap svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart-wrap.narrow { display: none; }
.chart .grid { stroke: var(--rule); stroke-width: 1; }
.chart .tick { font: 11px var(--mono); fill: var(--muted); }
.chart .tick.mid { text-anchor: middle; }
.chart .endlab { font: 500 11.5px var(--mono); fill: var(--ink); }
.chart .xhair { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 2 3; }
.tip { position: absolute; top: 8px; pointer-events: none; background: var(--surface); border: 1px solid var(--rule); border-radius: 2px; padding: 6px 9px; font: 12px/1.5 var(--mono); color: var(--ink-2); white-space: nowrap; }
.tip b { color: var(--ink); font-weight: 500; }
.chart-note { margin: 8px 0 0; font-size: 13.5px; color: var(--muted); }

/* archive */
.cat-list { list-style: none; margin: 0; padding: 0; }
.cat-row { display: grid; grid-template-columns: 70px minmax(0, 1fr) auto; gap: 18px; align-items: baseline; padding: 14px 0; border-top: 1px solid var(--rule); }
.cat-row:first-child { padding-top: 0; border-top: 0; }
.cat-n, .cat-date { font: 12.5px var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.cat-title { font-family: var(--display); font-weight: 600; font-size: 19px; line-height: 1.25; text-decoration: none; }
.cat-title:hover { color: var(--accent); }
.cat-dek { margin: 4px 0 0; font-size: 14.5px; color: var(--ink-2); }

/* footer */
footer { border-top: 1px solid var(--rule); margin-top: 8px; }
.arch-row { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 32px; padding-block: 22px 8px; }
.arch-label { margin: 0; font: 13px var(--mono); }
.archive { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 12.5px var(--mono); color: var(--ink-2); text-decoration: none; padding: 3px 9px; border: 1px solid var(--rule); border-radius: 2px; font-variant-numeric: tabular-nums; }
.chip:hover { border-color: var(--accent); color: var(--ink); }
.chip.current { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chip.all { border-color: transparent; color: var(--accent); }
.colophon { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; margin: 0; padding-block: 18px 40px; font: 12.5px var(--mono); color: var(--muted); }
.colophon a { text-decoration: none; } .colophon a:hover { color: var(--accent); }

@media (max-width: 860px) {
  .lead { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .beat-body { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .beat, .arch-row { grid-template-columns: minmax(0, 1fr); gap: 4px; padding-block: 24px; }
  .label { padding-top: 0; }
  .label span { display: inline; margin-left: 8px; }
  .chart-wrap.wide { display: none; } .chart-wrap.narrow { display: block; }
}
@media (max-width: 520px) {
  .band .wrap { padding-block: 26px 30px; }
  .stories { grid-template-columns: minmax(0, 1fr); }
  .cat-row { grid-template-columns: 56px minmax(0, 1fr); }
  .cat-date { display: none; }
}