:root {
  --bg: #f6f5f2; --fg: #1d1d1f; --mute: #6b6b70; --line: #ddd9d0; --panel: #fff;
  --light: #f0d9b5; --dark: #b58863; --accent: #2f6fdb;
  --good: #2e7d32; --inacc: #b8860b; --mistake: #d2691e; --blunder: #c62828;
  --played: rgba(155, 199, 0, .55); --best: #1f9d55; --playedArrow: #d9822b;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161616; --fg: #ececec; --mute: #a0a0a6; --line: #333; --panel: #1f1f1f; --accent: #6aa0ff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.45 -apple-system, system-ui, "Segoe UI", sans-serif; }
header { max-width: 1200px; margin: 0 auto; padding: 18px 16px 4px; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 10px; }
.sub, .hint { color: var(--mute); margin: 0; }
.hint { font-size: 13px; margin-top: 6px; }
main { max-width: 1200px; margin: 0 auto; padding: 8px 16px 32px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 14px; }
label { font-weight: 600; }
textarea { width: 100%; margin-top: 6px; font: 13px/1.4 ui-monospace, Menlo, monospace; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--fg); resize: vertical; }
.row { display: flex; gap: 12px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
button { font: inherit; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--fg); cursor: pointer; }
#go { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button:disabled { opacity: .5; cursor: default; }
.level { font-weight: 400; color: var(--mute); }
select { font: inherit; padding: 4px; border-radius: 6px; }
#key { font: inherit; padding: 4px 6px; border-radius: 6px; border: 1px solid var(--line); background: transparent; color: var(--fg); min-width: 0; flex: 1 1 160px; max-width: 320px; }
#keyrow[hidden] { display: none; }
#status { margin-top: 10px; min-height: 1.4em; }
#status.error { color: var(--blunder); }
.bar { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; margin-top: 6px; }
#barfill { height: 100%; width: 0; background: var(--accent); transition: width .3s; }

.players { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.player { flex: 1 1 260px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; }
.player h3 { margin: 0 0 6px; font-size: 15px; }
.player .stats { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 13px; color: var(--mute); }
.player .stats b { color: var(--fg); }

.layout { display: grid; grid-template-columns: minmax(280px, 520px) minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: minmax(0, 1fr); } }
.left { position: sticky; top: 8px; }
@media (max-width: 860px) { .left { position: static; } }
.board-wrap { position: relative; width: 100%; aspect-ratio: 1 / 1; border-radius: 6px; overflow: hidden; }
.board { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(8, 1fr); }
.sq { position: relative; display: flex; align-items: center; justify-content: center; }
.sq.l { background: var(--light); }
.sq.d { background: var(--dark); }
.sq.hl::after { content: ""; position: absolute; inset: 0; background: var(--played); }
.sq img { width: 100%; height: 100%; position: relative; z-index: 1; display: block; }
.sq .coord { position: absolute; font-size: 10px; font-weight: 700; z-index: 2; line-height: 1; }
.sq .coord.file { right: 3px; bottom: 2px; }
.sq .coord.rank { left: 3px; top: 3px; }
.sq.l .coord { color: var(--dark); }
.sq.d .coord { color: var(--light); }
.arrows { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 3; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin: 8px 0; }
.nav span { flex: 1; text-align: center; font-weight: 600; }
.legend { font-size: 12px; color: var(--mute); margin-bottom: 10px; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 2px; margin: 0 4px 0 8px; vertical-align: -2px; }
.sw.played { background: var(--played); }
.sw.best { background: var(--best); }
.sw.playedArrow { background: var(--playedArrow); }
.viewrow { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.viewrow .legend { margin: 0; flex: 1 1 200px; }
#view { font-size: 13px; padding: 5px 10px; }
.narrow { display: none; }
@media (max-width: 960px) { .narrow { display: block; margin-bottom: 6px; } }
.frisescroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
#frise { width: 100%; min-width: 960px; height: 760px; border: 0; border-radius: 8px; display: block; background: var(--bg); }

.card h3 { margin: 0 0 6px; font-size: 16px; }
.chip { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; color: #fff; background: var(--mute); margin-left: 6px; }
.chip.good { background: var(--good); } .chip.inacc { background: var(--inacc); }
.chip.mistake { background: var(--mistake); } .chip.blunder { background: var(--blunder); }
.card ul { margin: 6px 0 0; padding-left: 18px; }
.card .evals { color: var(--mute); font-size: 13px; }

.curve { width: 100%; height: 160px; display: block; background: var(--bg); border-radius: 6px; cursor: pointer; }
.keys { margin: 0; padding-left: 20px; }
.keys li { margin-bottom: 8px; }
.moment { border-top: 1px solid var(--line); padding: 10px 0; cursor: pointer; }
.moment:first-child { border-top: 0; padding-top: 0; }
.moment .head { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.moment .mv { font-weight: 700; }
.state { font-size: 12px; padding: 1px 8px; border-radius: 10px; border: 1px solid currentColor; }
.state.ok { color: var(--good); } .state.part { color: var(--inacc); } .state.no { color: var(--blunder); }
.moment ul { margin: 6px 0 0; padding-left: 18px; font-size: 14px; }
.moment .why { color: var(--mute); font-size: 13px; margin-top: 4px; }
.moment.current { background: color-mix(in srgb, var(--accent) 8%, transparent); }
.moves table { border-collapse: collapse; width: 100%; font-size: 14px; }
.moves td { padding: 2px 6px; }
.moves td.num { color: var(--mute); width: 2.5em; }
.moves td.mv { cursor: pointer; border-radius: 4px; }
.moves td.mv.cur { background: var(--accent); color: #fff; }
.c-inacc { color: var(--inacc); } .c-mistake { color: var(--mistake); } .c-blunder { color: var(--blunder); }
footer { max-width: 1200px; margin: 0 auto; padding: 0 16px 24px; color: var(--mute); font-size: 12px; }
footer a { color: inherit; }