/* Shared styles for the ELO coaching-era posts. Per-club pages define
   --primary, --accent, --band-a, --band-b, the club name colours, and
   the guernsey masthead art in a small inline style block. */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --ink: #14161A;
  --muted: #75756E;
  --faint: #A3A39B;
  --paper: #FBFBF9;
  --panel: #FFFFFF;
  --rule: var(--ink);
  --grid: #E7E7E1;
  --club-name-color: #FFFFFF;
  --club-est-color: rgba(255, 255, 255, 0.55);
}

body {
  font-family: 'Archivo', sans-serif;
  background: var(--paper);
  color: var(--ink);
  min-height: 100vh;
}

::selection { background: var(--accent); color: #fff; }

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px 72px;
}

/* ── Utility bar ── */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px 0 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.topbar a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}
.topbar a:hover { color: var(--accent); }
.topbar a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ── Guernsey masthead ── */
.guernsey {
  position: relative;
  height: 56px;
  overflow: hidden;
}
.club-name {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Anton', sans-serif;
  font-size: 16px;
  letter-spacing: 3px;
  line-height: 1;
  color: var(--club-name-color);
  z-index: 2;
}
.club-est {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--club-est-color);
  z-index: 2;
}

/* ── Header ── */
h1 {
  font-family: 'Anton', sans-serif;
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.02;
  margin: 18px 0 10px;
}

.deck {
  font-size: 13.5px;
  font-weight: 400;
  line-height: 1.5;
  color: #3E3E38;
  max-width: 900px;
  margin-bottom: 14px;
}

/* ── Chart panel ── */
.chart-panel {
  background: var(--panel);
  border: 1.5px solid var(--rule);
  padding: 16px 16px 10px;
  margin-bottom: 14px;
}
.legend {
  display: flex;
  gap: 22px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 2px 4px 10px;
  flex-wrap: wrap;
}
.legend-item { display: flex; align-items: center; gap: 7px; }
.swatch { display: inline-block; width: 16px; height: 3px; background: var(--primary); }
.swatch-band { width: 20px; height: 11px; display: flex; gap: 1px; }
.swatch-band::before, .swatch-band::after { content: ''; flex: 1; }
.swatch-band::before { background: var(--band-a); }
.swatch-band::after { background: var(--band-b); }
.swatch-dash { width: 16px; border-top: 1.5px dashed var(--faint); }
.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px 16px;
}
.picker {
  display: flex;
  gap: 3px;
  padding: 0 4px 10px 0;
}
.picker button {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 9px;
  border: 1px solid var(--grid);
  background: none;
  color: var(--muted);
  cursor: pointer;
}
.picker button:hover { border-color: var(--ink); color: var(--ink); }
.picker button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.picker button.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.chart-wrap {
  position: relative;
  width: 100%;
  height: 680px;
}
canvas { display: block; }

/* ── Footnotes ── */
.methodology, .source {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.4px;
  line-height: 1.7;
  color: var(--faint);
}
.methodology { margin-bottom: 4px; }

/* ── Tooltip ── */
.tt {
  position: absolute;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s ease, transform 0.12s ease;
  transform: translateY(3px);
  z-index: 50;
}
.tt.show { opacity: 1; transform: translateY(0); }
.tt-inner {
  background: var(--panel);
  border: 1.5px solid var(--rule);
  padding: 10px 14px;
  min-width: 150px;
}
.tt-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin-bottom: 4px;
}
.tt-elo {
  font-family: 'Anton', sans-serif;
  font-size: 26px;
  line-height: 1.05;
  color: var(--primary);
  margin-bottom: 3px;
}
.tt-coach {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
}
.tt-vs {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--faint);
  margin-top: 3px;
}

@media (max-width: 768px) {
  .page { padding: 0 16px 44px; }
  .guernsey { height: 40px; }
  .club-name { font-size: 13px; letter-spacing: 2px; }
  h1 { margin-top: 14px; }
  .deck { font-size: 12.5px; }
  .chart-wrap { height: 460px; }
}