:root { color-scheme: dark; --bg: #121519; --panel: #1d2228; --border: #303740; --muted: #9ba5b1; --text: #eef2f6; --accent: #bce580; font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); height: 100vh; height: 100dvh; display: flex; flex-direction: column; }
button, input, select { font: inherit; }
button { cursor: pointer; border: 1px solid transparent; border-radius: 7px; color: inherit; background: transparent; padding: 10px 14px; transition: background .15s; }
button:hover:not(:disabled) { background: #343e46; }
button:disabled { opacity: .38; cursor: default; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.site-header { padding: 8px max(20px, calc((100vw - 1320px) / 2)); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 15px; flex-shrink: 0; }
.header-actions { display: flex; align-items: center; gap: 16px; }
#show-analysis { display: none; }
.brand { text-decoration: none; color: var(--text); font-weight: 750; font-size: 21px; display: flex; align-items: center; gap: 10px; }
.brand > span:first-child { font-size: 32px; color: var(--accent); }
.brand-tag { font-size: 10px; letter-spacing: .14em; color: var(--muted); border-left: 1px solid var(--border); padding-left: 13px; margin-left: 6px; }
.local-badge { color: #b4c4ad; font-size: 12px; display: flex; gap: 8px; align-items: center; }
.local-badge > span { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
main { max-width: 1320px; width: 100%; margin: 0 auto; padding: 10px 20px; flex: 1; min-height: 0; display: flex; flex-direction: column; gap: 8px; }
.secondary { border-color: var(--border); color: #c3ccd5; font-size: 12px; }
.workspace { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, 1fr); gap: 20px; flex: 1; min-height: 0; }
body.variation-mode::after { content: ''; position: fixed; inset: 0; background: #80808066; backdrop-filter: grayscale(1) brightness(.55); z-index: 5; pointer-events: none; }
body.variation-mode .board-column { position: relative; z-index: 6; }
#position-search-status:empty { display: none; }
/* Size the square from both available width and height, leaving controls visible. */
.board-column { min-width: 0; min-height: 0; container-type: size; display: flex; flex-direction: column; align-items: center; }
.player-card, .board-shell, .board-toolbar, .board-caption, .board-feedback { width: min(100%, max(0px, calc(100cqh - 220px))); flex-shrink: 0; }
.board-feedback { height: 32px; display: flex; align-items: center; gap: 6px; overflow-y: auto; }
.position-evaluation { display: inline-flex; align-items: baseline; gap: 8px; flex-shrink: 0; color: var(--muted); font-size: 11px; }
#position-evaluation { color: var(--text); font-size: 16px; font-weight: 650; font-variant-numeric: tabular-nums; min-width: 5ch; }
.board-feedback #position-search-status { margin: 0; font-size: 10px; min-width: 0; }
.board-feedback button { padding: 4px 6px; font-size: 10px; flex-shrink: 0; }
.player-card { display: flex; gap: 10px; align-items: center; padding: 5px 3px; height: 44px; }
.player-card > div { min-width: 0; }
.avatar { display: grid; place-items: center; background: #292f36; width: 32px; height: 32px; flex-shrink: 0; border-radius: 7px; font-size: 25px; color: #a7b2bf; }
.avatar.light { background: #d5d1c7; color: #333; }
.player-card strong { font-size: 14px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.player-card div > span { font-size: 11px; color: var(--muted); display: block; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.color-dot { margin-left: auto; width: 12px; height: 12px; border-radius: 50%; border: 1px solid #727a84; flex-shrink: 0; }
.color-dot.black { background: #080a0e; }.color-dot.white { background: #e9e6df; }
.board-shell { position: relative; aspect-ratio: 1; border-radius: 4px; overflow: hidden; box-shadow: 0 16px 45px #0004; }
#game-over { position: absolute; z-index: 4; top: 50%; left: 50%; transform: translate(-50%, -50%); width: max-content; max-width: 94%; margin: 0; padding: 12px 16px; border: 1px solid var(--accent); border-radius: 8px; background: #15191ef2; color: var(--text); box-shadow: 0 4px 20px #0006; font-size: clamp(12px, 2vw, 18px); font-weight: 700; text-align: center; pointer-events: none; }
#board { width: 100%; height: 100%; }
.board-toolbar { padding-top: 5px; display: flex; gap: 8px; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); }
.navigation { display: flex; align-items: center; gap: 3px; }
.navigation button { font-size: 22px; padding: 5px 12px; }
#move-counter { color: var(--muted); font-size: 11px; text-align: center; min-width: 85px; }
.board-caption { font-size: 10px; color: var(--muted); display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 6px 0 0; min-height: 44px; }
.board-legend { display: flex; flex-wrap: wrap; gap: 4px 10px; min-width: 0; }
.board-legend > span { white-space: nowrap; }
.board-legend .legend { display: inline-block; margin-left: 0; }
.variation-actions { display: flex; gap: 6px; flex-shrink: 0; }
.variation-actions button { min-height: 44px; min-width: 76px; padding: 6px 10px; border-color: var(--border); background: var(--panel); color: var(--text); font-size: 13px; font-weight: 650; display: inline-flex; align-items: center; justify-content: center; gap: 5px; }
.variation-actions button > span { font-size: 20px; line-height: 1; }
body.variation-mode .variation-actions button:not(:disabled) { border-color: var(--accent); color: var(--accent); }
body.variation-mode #reset-variation:not(:disabled) { background: var(--accent); color: #1b2711; }
body.variation-mode #reset-variation:hover:not(:disabled) { background: #cdef9c; }
.legend { width: 7px; height: 7px; border-radius: 50%; margin-left: 12px; }.legend:first-child { margin-left: 0; }.green { background: #86b85c; }.blue { background: #6696c8; }.keyboard-hint { margin-left: auto; }
.review-column { display: flex; flex-direction: column; gap: 10px; min-width: 0; min-height: 0; overflow-y: auto; scrollbar-width: thin; overscroll-behavior: contain; padding: 0 3px 3px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 11px; padding: 12px; flex-shrink: 0; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
h2 { font-size: 14px; font-weight: 650; margin: 0; }
.small-label { color: var(--muted); font-size: 9px; letter-spacing: .09em; }
form > label { font-size: 11px; color: var(--muted); display: block; margin-bottom: 8px; }
#chesscom-status:empty { display: none; }
.import-actions { display: flex; gap: 10px; justify-content: space-between; align-items: center; margin-top: 12px; }
.username-search { display: flex; gap: 8px; }
.username-search input, #chesscom-picker select { background: #15191e; border: 1px solid var(--border); border-radius: 6px; padding: 9px; color: var(--text); min-width: 0; font-size: 11px; }
.username-search input { flex: 1; width: 0; }.username-search button { flex-shrink: 0; }
#chesscom-picker { margin-top: 14px; }#chesscom-picker label { display: block; color: var(--muted); font-size: 11px; margin: 10px 0 7px; }#chesscom-picker select { width: 100%; }#chesscom-game option { padding: 8px 4px; }
.game-pagination { display: flex; align-items: center; gap: 6px; margin-top: 9px; }.game-pagination button { padding: 7px 9px; }#games-page { font-size: 9px; }
.lookup-error { background: #50272b; color: #ffc4c0; padding: 10px; border-radius: 6px; font-size: 12px; line-height: 1.6; }
.primary { background: var(--accent); color: #1b2711; font-weight: 700; font-size: 12px; min-width: 145px; }.primary:hover:not(:disabled) { background: #cdef9c; }
#status { font-size: 11px; line-height: 1.6; color: var(--muted); margin: 13px 0 0; }
.review-status #status { margin: 0; }.review-status { min-width: 0; }
#error { background: #50272b; color: #ffc4c0; padding: 10px; border-radius: 6px; font-size: 12px; line-height: 1.6; }
.quality { font-size: 8px; letter-spacing: .08em; padding: 5px 7px; color: var(--accent); background: #bce58010; border-radius: 4px; }
.muted { color: var(--muted); font-size: 11px; line-height: 1.6; }
.comparison-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.comparison-cards > div { background: #15191e; padding: 8px 12px; border-radius: 7px; border: 1px solid var(--border); }
.comparison-cards strong { display: block; font-size: 24px; font-weight: 600; margin-top: 4px; }.comparison-cards .best-card { background: #bce58007; border-color: #bce58030; }.best-card strong { color: var(--accent); }
.metrics { display: flex; justify-content: space-between; gap: 12px; margin: 10px 0; font-size: 10px; color: var(--muted); }.metrics strong { color: var(--text); margin-left: 5px; font-weight: 550; }
.performance-ratings { min-height: 28px; align-items: center; margin: 4px 0; }
.performance-ratings strong { display: inline-block; min-width: 5ch; font-size: 19px; font-variant-numeric: tabular-nums; }
.summary-panel .panel-heading:has(+ .performance-ratings) { margin-top: 12px; }
.summary-panel .panel-heading h2 { min-width: 0; overflow-wrap: anywhere; }
#rating-status { margin: 4px 0; font-size: 10px; overflow-wrap: anywhere; }
#retry-rating { font-size: 10px; padding: 5px 8px; }
.preview-tabs { display: flex; background: #13171c; border-radius: 6px; padding: 3px; gap: 3px; }.preview-tabs button { flex: 1; padding: 8px 3px; font-size: 10px; border-radius: 4px; }.preview-tabs [aria-pressed="true"] { background: #343e46; color: var(--accent); }
#preview-note { margin-bottom: 0; font-size: 10px; }
.move-list { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; max-height: 240px; overflow-y: auto; scrollbar-width: thin; }
.move-button { text-align: left; font-size: 13px; padding: 9px 12px; color: #cbd4de; border-radius: 5px; }.move-button.engine-match::after { content: '•'; color: var(--accent); float: right; }.move-button[aria-current="true"] { background: #bce5801c; color: var(--accent); border-color: #bce58044; }
.empty-state { grid-column: 1 / -1; text-align: center; padding: 16px 0; color: var(--muted); }.empty-state > span { font-size: 28px; color: #687580; }.empty-state p { font-size: 13px; margin: 7px; }.empty-state small { font-size: 10px; }
.accuracy-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.accuracy-cards > div { display: grid; grid-template-columns: 1fr auto; gap: 3px 8px; background: #15191e; border: 1px solid var(--border); border-radius: 7px; padding: 8px 10px; min-width: 0; }
.accuracy-color { display: flex; align-items: center; gap: 7px; font-size: 11px; }.accuracy-color .color-dot { margin: 0; width: 9px; height: 9px; }
.accuracy-cards strong { font-size: 25px; font-weight: 650; color: var(--accent); grid-column: 2; grid-row: 1 / 3; align-self: center; }
.accuracy-cards [id$="-accuracy-name"] { font-size: 10px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.accuracy-note { font-size: 9px; margin: 6px 0 0; }.graph-heading { margin: 12px 0 3px; }.graph-heading h2 { font-size: 12px; }
#graph-readout { text-align: right; letter-spacing: 0; }
.evaluation-chart { position: relative; }.evaluation-chart svg { display: block; width: 100%; height: clamp(65px, 12vh, 115px); cursor: crosshair; }
.evaluation-chart text { fill: var(--muted); font: 10px system-ui, sans-serif; }.graph-white { fill: #cbd4de16; }.graph-black { fill: #080a0e60; }
.graph-zero { stroke: #8995a070; stroke-dasharray: 4 4; }#graph-line { stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
#graph-cursor { stroke: #89bdf1; stroke-width: 1; vector-effect: non-scaling-stroke; }#graph-dot { fill: #89bdf1; stroke: #121519; stroke-width: 1; }
#graph-empty { position: absolute; inset: 30% 0 auto; text-align: center; pointer-events: none; margin: 0; }
#graph-position { display: block; width: 100%; height: 12px; margin: 2px 0 0; accent-color: var(--accent); cursor: pointer; }
#graph-position:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#graph-note { font-size: 9px; margin: 4px 0 0; }
#import-dialog { color: var(--text); background: var(--panel); border: 1px solid #47525e; border-radius: 12px; width: min(620px, calc(100vw - 24px)); max-height: calc(100vh - 24px); max-height: calc(100dvh - 24px); padding: 20px; box-shadow: 0 24px 100px #0009; overflow-y: auto; overscroll-behavior: contain; }
#import-dialog::backdrop { background: #05080dbc; backdrop-filter: blur(3px); }
#analysis-dialog { color: var(--text); background: var(--panel); border: 1px solid #47525e; border-radius: 8px; width: min(560px, calc(100vw - 24px)); max-height: calc(100dvh - 24px); padding: 16px; overflow-y: auto; overscroll-behavior: contain; box-shadow: 0 24px 100px #0009; }
#analysis-dialog::backdrop { background: #05080dbc; backdrop-filter: blur(3px); }
#analysis-dialog > .panel-heading { margin-bottom: 14px; }
#analysis-dialog .review-column { overflow: visible; padding: 0; }
#analysis-dialog .summary-panel { border: 0; border-radius: 0; padding: 0; background: transparent; }
#close-analysis { min-width: 44px; min-height: 44px; padding: 5px 10px; }
#promotion-dialog { color: var(--text); background: var(--panel); border: 1px solid #47525e; border-radius: 12px; width: min(380px, calc(100vw - 24px)); padding: 20px; }
#promotion-dialog::backdrop { background: #05080dbc; }
.promotion-options { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0; }
.promotion-options button { background: #343e46; }
#import-dialog .panel-heading { margin-bottom: 8px; }#import-heading { font-size: 19px; }#close-import { padding: 5px 10px; }
#import-description { margin: 0 0 18px; }#import-status { margin-bottom: 0; }
footer { display: flex; justify-content: space-between; gap: 8px; font-size: 9px; color: #818d9a; border-top: 1px solid var(--border); padding-top: 6px; flex-shrink: 0; flex-wrap: wrap; }footer a { color: #adbca4; }
@media (min-width: 851px) {
	.review-column { display: flex; }
	.moves-panel { min-height: 0; display: flex; flex-direction: column; }
	.moves-panel .panel-heading { flex-shrink: 0; }.move-list { min-height: 0; max-height: none; }
}
@media (min-width: 851px) and (max-height: 740px) {
	.review-column { gap: 7px; }.review-status #status { font-size: 10px; }.panel { padding: 8px; }
	.panel-heading { margin-bottom: 6px; }.accuracy-cards > div { padding: 5px 8px; }.accuracy-cards strong { font-size: 22px; }.accuracy-note { display: none; }
	.graph-heading { margin: 7px 0 0; }.evaluation-chart svg { height: 60px; }
	#position-label { margin: 6px 0; }.comparison-cards { margin-top: 6px; }.comparison-cards > div { padding: 5px 9px; }.comparison-cards strong { font-size: 20px; margin-top: 2px; }
	.metrics { margin: 6px 0; }.preview-tabs button { padding: 6px 3px; }#preview-note { margin-top: 6px; font-size: 9px; }
}
@media (min-width: 1025px) and (min-height: 601px) {
	.site-header { padding-inline: max(24px, calc((100vw - 1680px) / 2)); }
	main { max-width: 1680px; padding: 8px 24px; }
	.workspace { grid-template-columns: minmax(0, 1.1fr) minmax(380px, 1fr); gap: 24px; }
	.player-card, .board-shell, .board-toolbar, .board-caption, .board-feedback { width: min(100%, max(0px, calc(100cqh - 184px))); }
	.player-card { height: 32px; padding: 2px 3px; gap: 8px; }
	.avatar { width: 28px; height: 28px; font-size: 23px; }
	.player-card strong { font-size: 13px; }.player-card div > span { font-size: 10px; }
	.board-toolbar { height: 40px; padding-top: 2px; }
	.navigation button { font-size: 20px; padding: 4px 10px; }
	.board-toolbar > button { padding: 6px 10px; }
	.board-feedback { height: 24px; }
	.workspace > .review-column { overflow: hidden; padding-bottom: 0; }
	.workspace .summary-panel { display: flex; flex-direction: column; flex: 1; min-height: 0; padding: 20px; border-radius: 8px; }
	.workspace .summary-panel > * { flex-shrink: 0; }
	.workspace .summary-panel h2 { font-size: 17px; }
	.workspace .summary-panel .panel-heading { margin-bottom: 12px; }
	.workspace .accuracy-cards { gap: 14px; }
	.workspace .accuracy-cards > div { padding: 12px; }
	.workspace .accuracy-cards strong { font-size: 36px; }
	.workspace .accuracy-color { font-size: 13px; }
	.workspace .accuracy-cards [id$="-accuracy-name"] { font-size: 12px; }
	.workspace .accuracy-note { display: block; font-size: 11px; margin-top: 10px; }
	.workspace .performance-ratings { min-height: 44px; font-size: 13px; }
	.workspace .performance-ratings strong { font-size: 28px; }
	.workspace #rating-status { font-size: 12px; }
	.workspace .graph-heading { margin-top: 20px; }
	.workspace .summary-panel .evaluation-chart { flex: 1; min-height: 100px; }
	.workspace .evaluation-chart svg { position: absolute; inset: 0; height: 100%; }
	.workspace #graph-position { height: 20px; margin-top: 8px; }
	.workspace #graph-note { font-size: 11px; margin-top: 8px; }
}
@media (max-width: 1024px), (max-height: 600px) {
	.workspace { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr); gap: 0; }
	#show-analysis { display: inline-flex; align-items: center; justify-content: center; }
	.site-header { padding: 5px 12px; gap: 8px; }.brand { font-size: 16px; }.brand > span:first-child { font-size: 25px; }
	.header-actions { gap: 6px; flex-shrink: 0; }
	.header-actions .local-badge, .brand-tag { display: none; }.header-actions button { min-height: 44px; padding: 7px 9px; font-size: 12px; }
	.header-actions .primary { min-width: 0; }#import-dialog { padding: 14px; }.accuracy-cards strong { font-size: 22px; }
	main { padding: 6px 10px; gap: 4px; }
	.player-card, .board-shell { width: min(100%, max(0px, calc(100cqh - 180px))); }
	.player-card { height: 32px; padding: 2px; gap: 7px; }.avatar { width: 26px; height: 26px; font-size: 21px; }
	.player-card strong { font-size: 12px; }.player-card div > span { font-size: 9px; }
	.board-toolbar, .board-caption, .board-feedback { width: min(100%, max(0px, calc(100cqh - 180px))); }
	.board-toolbar { padding-top: 2px; }.navigation button { padding: 3px 10px; font-size: 20px; }
	.board-toolbar > button { padding: 6px 10px; }.board-caption { font-size: 9px; margin-top: 3px; }
	footer { font-size: 8px; padding-top: 4px; }footer > span:last-child { display: none; }
}
@media (max-width: 360px) {
	.site-header { padding-inline: 8px; }.brand { font-size: 14px; }.brand > span:first-child { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; transition: none !important; } }