/* Chess diary - shared style. Static, no external requests. */
:root {
  --paper: #f2f5f2;
  --card: #ffffff;
  --ink: #1b2530;
  --muted: #566370;
  --line: #d4ddd6;
  --sq-light: #e8eee7;
  --sq-dark: #86a392;
  --bad: #b8402d;
  --bad-soft: #f6e1dc;
  --good: #176b87;
  --good-soft: #dcecf1;
  --warn: #9a6a12;
  --focus: #176b87;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #131a21;
    --card: #1a232c;
    --ink: #e6ece8;
    --muted: #9aa8b2;
    --line: #2d3945;
    --sq-light: #c9d6cd;
    --sq-dark: #5f806f;
    --bad: #e0705c;
    --bad-soft: #3a2420;
    --good: #5fb4d0;
    --good-soft: #1b3440;
    --warn: #d9a441;
    --focus: #5fb4d0;
  }
}
:root[data-theme="dark"] {
  --paper: #131a21; --card: #1a232c; --ink: #e6ece8; --muted: #9aa8b2; --line: #2d3945;
  --sq-light: #c9d6cd; --sq-dark: #5f806f; --bad: #e0705c; --bad-soft: #3a2420;
  --good: #5fb4d0; --good-soft: #1b3440; --warn: #d9a441; --focus: #5fb4d0;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.6 var(--sans);
}
a { color: var(--good); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 3px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.site-head { border-bottom: 1px solid var(--line); background: var(--card); }
.site-head .wrap { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 28px; padding-top: 14px; padding-bottom: 14px; }
.brand { font: 700 1.2rem/1.2 var(--serif); color: var(--ink); text-decoration: none; letter-spacing: 0.01em; }
.site-head nav { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: 0.95rem; }
.site-head nav a { color: var(--muted); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
.site-head nav a:hover, .site-head nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--good); }

main { padding: 28px 0 64px; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.2; margin: 0; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.7rem); font-weight: 700; margin-bottom: 12px; }
h2 { font-size: 1.55rem; margin: 44px 0 14px; }
h3 { font-size: 1.2rem; }
p { margin: 0 0 14px; max-width: 70ch; }
.lede { font: 1.2rem/1.55 var(--serif); color: var(--ink); max-width: 62ch; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

/* Summary figures */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 22px 0 8px; padding: 0; list-style: none; }
.facts li { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 12px 14px; }
.facts .v { display: block; font: 700 1.55rem/1.15 var(--serif); }
.facts .l { display: block; color: var(--muted); font-size: 0.88rem; margin-top: 2px; }
.v .up { color: var(--good); } .v .down { color: var(--bad); }

/* Tables */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { white-space: normal; vertical-align: bottom; }
th { font-weight: 600; background: color-mix(in srgb, var(--card) 88%, var(--sq-dark)); }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.sub td { color: var(--muted); font-size: 0.9rem; }
tr.sub td:first-child { padding-left: 28px; }
caption { text-align: left; color: var(--muted); font-size: 0.9rem; padding: 0 0 8px; caption-side: top; }
.res-w { color: var(--good); font-weight: 600; } .res-l { color: var(--bad); font-weight: 600; }

/* Bars used in trend table */
.bar { display: inline-block; height: 10px; border-radius: 2px; background: var(--bad); vertical-align: middle; margin-right: 8px; min-width: 2px; }
.bar.alt { background: var(--warn); }

/* Position card */
.position { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 18px; margin: 0 0 26px; }
.position-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; align-items: baseline; margin-bottom: 14px; }
.position-head h3 { margin: 0; }
.tag { display: inline-block; font-size: 0.85rem; color: var(--ink); background: color-mix(in srgb, var(--card) 80%, var(--sq-dark)); border-radius: 12px; padding: 2px 10px; text-decoration: none; }
a.tag:hover { background: color-mix(in srgb, var(--card) 65%, var(--sq-dark)); }
.position-grid { display: grid; grid-template-columns: minmax(280px, 460px) 1fr; gap: 22px; align-items: start; }
@media (max-width: 760px) { .position-grid { grid-template-columns: 1fr; } .position { padding: 14px; } }

.board-box { width: 100%; }
.board { display: block; width: 100%; height: auto; border-radius: 4px; user-select: none; -webkit-user-select: none; touch-action: manipulation; }
.board .sq-l { fill: var(--sq-light); } .board .sq-d { fill: var(--sq-dark); }
.board .hl-from { fill: rgba(23, 107, 135, 0.28); } .board .hl-to { fill: rgba(23, 107, 135, 0.42); }
.board .hl-bad-from { fill: rgba(184, 64, 45, 0.28); } .board .hl-bad-to { fill: rgba(184, 64, 45, 0.45); }
.board .hl-sel { fill: rgba(226, 176, 40, 0.55); }
.board .coord { font: 600 17px var(--sans); fill: var(--ink); opacity: 0.6; pointer-events: none; }
.board .pc { font-family: "Segoe UI Symbol", "Noto Sans Symbols 2", "DejaVu Sans", "Apple Symbols", "Arial Unicode MS", sans-serif; font-size: 84px; text-anchor: middle; pointer-events: none; paint-order: stroke; stroke-linejoin: round; }
.board .pc.w { fill: #ffffff; stroke: #1b2530; stroke-width: 5px; }
.board .pc.b { fill: #1b2530; stroke: #f2f5f2; stroke-width: 3px; }
.arrow-bad { stroke: var(--bad); fill: var(--bad); } .arrow-good { stroke: var(--good); fill: var(--good); }

.controls { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.btn { font: 600 0.92rem var(--sans); padding: 8px 12px; min-height: 40px; border-radius: 6px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer; }
.btn:hover { border-color: var(--good); }
.btn[aria-pressed="true"] { background: var(--good); color: #fff; border-color: var(--good); }
.btn.bad[aria-pressed="true"] { background: var(--bad); border-color: var(--bad); }
.btn:disabled { opacity: 0.45; cursor: default; }
.stepbar { display: flex; align-items: center; gap: 8px; margin-top: 10px; min-height: 40px; }
.stepbar .where { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 0.92rem; }
.moveline { margin: 10px 0 0; font: 600 1rem var(--serif); min-height: 1.6em; }
.feedback { margin: 10px 0 0; padding: 8px 12px; border-radius: 6px; font-size: 0.95rem; background: var(--paper); border-left: 4px solid var(--line); min-height: 2.4em; }
.feedback.ok { border-left-color: var(--good); background: var(--good-soft); }
.feedback.no { border-left-color: var(--bad); background: var(--bad-soft); }

.swing { margin: 0 0 14px; }
.swing-track { position: relative; height: 12px; border-radius: 6px; background: linear-gradient(90deg, var(--bad-soft), var(--paper) 50%, var(--good-soft)); border: 1px solid var(--line); }
.swing-seg { position: absolute; top: -1px; bottom: -1px; border-radius: 6px; background: var(--bad); opacity: 0.85; }
.swing-pt { position: absolute; top: -4px; width: 4px; height: 18px; margin-left: -2px; background: var(--ink); border-radius: 2px; }
.swing-pt.before { background: var(--good); }
.swing-legend { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--muted); margin-top: 4px; }

.notes p { max-width: 62ch; }
.lesson { border-left: 4px solid var(--good); padding: 6px 0 6px 14px; margin: 16px 0 12px; font-family: var(--serif); font-size: 1.05rem; }
.links { font-size: 0.92rem; }

.key-list { padding-left: 1.2rem; max-width: 70ch; }
.key-list li { margin-bottom: 8px; }

.site-foot { border-top: 1px solid var(--line); padding: 22px 0 40px; color: var(--muted); font-size: 0.9rem; }

@media (prefers-reduced-motion: no-preference) {
  .btn { transition: border-color 0.12s, background-color 0.12s; }
}
@media print {
  .controls, .stepbar, .site-head nav { display: none; }
  .position { break-inside: avoid; }
}

/* Charts and clock figures */
.chart-box { margin: 0 0 8px; background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 12px 12px 8px; }
.chart { display: block; width: 100%; height: auto; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .grid.day { stroke-dasharray: 3 4; }
.chart .axis { fill: var(--muted); font: 12px var(--sans); }
.chart .line { fill: none; stroke: var(--good); stroke-width: 2.5; stroke-linejoin: round; }
.chart .dot { fill: var(--good); }
.clock-line { margin: -6px 0 12px; }

/* Winning positions page */
.advice { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--good); border-radius: 6px; padding: 14px 18px 4px; margin: 28px 0 0; }
.advice h2 { margin: 0 0 8px; }
tr.total td { font-weight: 700; border-top: 2px solid var(--line); }

/* Whole-game mode */
.gamebox { margin-top: 10px; }
.gamelist { list-style: none; margin: 10px 0 0; padding: 4px 6px; max-height: 210px; overflow-y: auto; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); position: relative; }
.gamelist li { display: grid; grid-template-columns: 2.4em 1fr 1fr; gap: 2px; align-items: center; }
.gamelist .mvno { color: var(--muted); font-size: 0.85rem; font-variant-numeric: tabular-nums; }
.gamelist .mv { font: 600 0.92rem var(--sans); text-align: left; padding: 3px 6px; min-height: 30px; border: 0; border-radius: 4px; background: transparent; color: var(--ink); cursor: pointer; }
.gamelist .mv:hover { background: color-mix(in srgb, var(--card) 75%, var(--sq-dark)); }
.gamelist .mv.cur { background: var(--good); color: #fff; }
.gamelist .mv.bad:not(.cur) { color: var(--bad); }
.gamelist .mv.warn:not(.cur) { color: var(--warn); }