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strong{display:block;margin-top:.35rem;font-size:1rem;line-height:1.3;overflow-wrap:anywhere}.toolbar-engine-card{display:grid;grid-template-columns:4.8rem minmax(0,1fr);gap:.7rem;align-items:center;min-width:0;padding:.42rem;border-radius:.95rem;border:1px solid var(--surface-border);background:var(--surface-subtle)}.toolbar-engine-card.bot-duel-card{grid-template-columns:minmax(0,1fr);gap:.32rem}.toolbar-engine-image{width:4.8rem;height:3.5rem;border-radius:.75rem;object-fit:cover;box-shadow:0 10px 20px #0000002e}.toolbar-engine-copy{min-width:0}.toolbar-engine-copy>strong{font-size:.92rem}.bot-color-list{display:grid;gap:.24rem;margin-top:.28rem}.bot-color-pill{display:grid!important;grid-template-columns:2.5rem 3.2rem minmax(0,1fr);gap:.45rem;align-items:center;margin-top:0!important;font-size:.82rem!important;line-height:1.15!important}.bot-color-image{width:2.5rem;height:1.7rem;border-radius:.5rem;object-fit:cover;box-shadow:0 7px 14px #00000029}.bot-color-pill b{color:var(--text-primary);font-size:.78rem}.bot-color-pill span{min-width:0;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.board-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1rem}.hint-strip{display:flex;align-items:center;justify-content:space-between;gap:.9rem;width:min(100%,calc(1282px + 2.4rem));margin:0 auto 1rem;padding:.9rem 1rem;border-radius:1.2rem;border:1px solid var(--surface-border);background:var(--surface-subtle)}.hint-copy{min-width:0}.hint-copy span{display:block;margin-bottom:.25rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0;font-size:.7rem}.hint-copy strong{display:block;color:var(--text-primary);overflow-wrap:anywhere}.hint-btn{white-space:nowrap}.board-quick-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:.75rem;width:min(100%,calc(1282px + 2.4rem));margin:0 auto 1rem}.board-quick-actions .board-action-btn{min-width:10.5rem}.board-quick-actions .board-new-game-btn{width:auto;min-width:11rem}.board-action-btn.active,.secondary-btn.active{border-color:var(--theme-accent);background:var(--theme-panel)}.panel-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-bottom:.9rem}.panel-head.compact{margin-bottom:.8rem}.panel-head h2{margin:0;font-size:1rem}.history-head{display:flex;flex-direction:column;gap:.25rem}.board-content{display:grid;grid-template-columns:minmax(240px,282px) minmax(0,700px) minmax(240px,300px);gap:1.2rem;align-items:start;width:min(100%,calc(1282px + 2.4rem));margin:0 auto;justify-content:center}.match-panel{position:relative;display:grid;gap:.9rem;overflow:hidden;border-radius:.35rem;padding:1rem}.match-panel:before,.history-panel:before,.card:before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,var(--theme-accent),transparent 34%) top left / 100% 1px no-repeat,linear-gradient(180deg,var(--theme-accent),transparent 34%) top left / 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.fullscreen-board-layout.has-fullscreen-side-panel{grid-template-columns:minmax(0,auto) var(--fullscreen-side-width)}.board-viewport:fullscreen .board-wrap{width:min(calc(100vh - 2rem),calc(100vw - 2rem))}.board-viewport:fullscreen .fullscreen-board-layout.has-fullscreen-side-panel .board-wrap{width:min(calc(100vh - 5.35rem),calc(100vw - var(--fullscreen-side-width) - 3rem))}.fullscreen-exit-btn{position:absolute;top:max(.75rem,env(safe-area-inset-top));right:max(.75rem,env(safe-area-inset-right));z-index:4;padding:.8rem 1rem;color:var(--text-primary);background:var(--surface-strong);border-color:var(--surface-border-strong);box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}.board-room-clock-card{display:grid;width:min(100%,700px);margin:0;color:var(--text-primary);background:var(--surface-strong);border-color:var(--surface-border-strong);box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}.board-room-clock-card .room-clock-head{display:none}.board-room-clock-card .room-clocks{grid-template-columns:repeat(2,minmax(0,1fr))}.board-room-clock-card .room-clock{padding:.5rem .62rem}.board-room-clock-card .room-clock strong{font-size:.98rem}.fullscreen-room-clock-card{margin:0;border-color:var(--surface-border-strong);background:var(--surface-strong)}.fullscreen-room-clock-card .room-clock-head{display:flex}.fullscreen-room-clock-card .room-clocks{grid-template-columns:minmax(0,1fr);gap:.5rem}.fullscreen-room-clock-card .room-clock{padding:.62rem .72rem}.fullscreen-room-clock-card .room-clock strong{font-size:1.05rem}.fullscreen-side-panel{display:grid;gap:.9rem;width:100%;max-height:min(100%,46rem);align-self:center;overflow:auto;padding:.9rem;border-radius:1.15rem;border:1px solid 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.review-slider{order:2;grid-column:1 / -1}.board-wrap{--board-index-size: 20px;--board-index-gap: .65rem;--board-border-size: 1px;position:relative;display:flex;flex-direction:column;gap:.65rem;width:min(100%,700px,max(18rem,calc(100dvh - 23.5rem)))}.board-frame{position:relative;display:grid;grid-template-columns:var(--board-index-size) minmax(0,1fr);gap:var(--board-index-gap);align-items:stretch}.board-frame.with-eval{grid-template-columns:2.15rem var(--board-index-size) minmax(0,1fr)}.rank-labels,.file-labels{display:grid;align-items:center;justify-items:center;color:var(--text-dim);font-weight:700}.rank-labels{grid-template-rows:repeat(8,minmax(0,1fr));padding-block:var(--board-border-size)}.file-labels{grid-template-columns:repeat(8,minmax(0,1fr));padding-left:calc(var(--board-index-size) + var(--board-index-gap) + var(--board-border-size));padding-right:var(--board-border-size)}.board-wrap.analysis-board .file-labels{padding-left:calc(2.15rem + var(--board-index-gap) + var(--board-index-size) + var(--board-index-gap) + var(--board-border-size))}.board-grid{position:relative;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));grid-auto-rows:minmax(0,1fr);width:100%;height:100%;border-radius:.22rem;overflow:hidden;aspect-ratio:1;border:var(--board-border-size) solid var(--board-frame);background:var(--surface-strong);box-shadow:0 18px 32px #0000006b,0 0 0 1px #080e11eb,inset 0 0 0 1px #d2e1e614}.board-drawing-layer{position:absolute;inset:0;z-index:3;width:100%;height:100%;pointer-events:none;overflow:visible;color:#e11919;filter:drop-shadow(0 2px 3px rgba(0,0,0,.32))}.board-drawing{stroke:currentColor;stroke-linecap:butt;stroke-linejoin:round}.board-drawing-line{fill:none;stroke-width:.035}.board-drawing-arrowhead{fill:currentColor;stroke:none}.position-eval{display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;gap:.32rem;align-items:stretch;min-width:0;padding-block:var(--board-border-size)}.position-eval-score,.position-eval-side{display:block;color:var(--text-dim);font-size:.68rem;font-weight:800;line-height:1;text-align:center}.position-eval-score{color:var(--text-primary);overflow-wrap:anywhere}.position-eval-track{position:relative;min-height:0;overflow:hidden;border-radius:.45rem;border:1px solid var(--surface-border-strong);background:#111}.position-eval-white,.position-eval-black{position:absolute;left:0;right:0}.position-eval-white{top:0;height:var(--white-share);background:#f4f0e7}.position-eval-black{bottom:0;height:calc(100% - var(--white-share));background:#171717}.board-wrap.celebrating .board-grid{animation:board-victory-pop .72s ease}.board-victory{position:absolute;inset:0 0 0 calc(var(--board-index-size) + var(--board-index-gap));z-index:2;display:grid;place-items:center;overflow:hidden;border-radius:1.15rem;border:var(--board-border-size) solid transparent;background:radial-gradient(circle at center,var(--focus-ring) 0%,transparent 56%),linear-gradient(180deg,#0a0e150f,#0a0e1557),var(--theme-panel);box-shadow:inset 0 0 0 1px var(--surface-border),inset 0 0 0 2px var(--button-active-border),0 0 34px #0000002e;pointer-events:none;animation:board-victory-overlay 2.1s ease forwards}.board-victory-rays{position:absolute;inset:-22%;opacity:.42;background:conic-gradient(from 8deg,transparent 0 8deg,rgba(255,255,255,.24) 8deg 12deg,transparent 12deg 28deg);filter:blur(.4px);animation:board-victory-rays 2.1s ease-out forwards}.board-victory:before,.board-victory:after{content:"";position:absolute;inset:0}.board-victory:before{background:linear-gradient(112deg,transparent 22%,rgba(255,255,255,.28) 50%,transparent 76%);transform:translate(-130%);animation:board-victory-sweep 1.1s ease .14s forwards}.board-victory:after{inset:18%;border-radius:50%;border:1px solid var(--button-active-border);background:radial-gradient(circle,rgba(255,255,255,.12) 0%,transparent 68%);filter:blur(1px);animation:board-victory-ring 1.2s ease-out .08s both}.board-victory-emblem{position:absolute;top:max(1.1rem,8%);left:50%;z-index:1;display:grid;place-items:center;width:clamp(3.2rem,10vw,4.8rem);aspect-ratio:1;transform:translate(-50%);border-radius:999px;border:1px solid rgba(255,255,255,.2);background:radial-gradient(circle at 35% 28%,rgba(255,255,255,.38),transparent 34%),linear-gradient(150deg,var(--theme-accent),rgba(255,255,255,.16));box-shadow:0 0 32px color-mix(in srgb,var(--theme-accent) 48%,transparent),inset 0 0 0 1px #ffffff2e;animation:board-victory-emblem 1.1s cubic-bezier(.2,.86,.2,1.1) both}.board-victory-emblem svg{width:58%;height:58%;fill:none;stroke:var(--primary-text);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 8px 14px rgba(0,0,0,.2))}.board-victory-copy{position:relative;z-index:1;display:grid;gap:.3rem;padding:4.2rem 1.4rem 1.2rem;text-align:center}.board-victory-copy span{color:var(--text-muted);text-transform:uppercase;letter-spacing:0;font-size:.72rem}.board-victory-copy strong{font-size:2.35rem;line-height:.96;letter-spacing:0;color:var(--text-primary);text-shadow:0 10px 22px rgba(0,0,0,.28)}.board-victory-copy p{margin:0;color:var(--text-secondary);font-size:.95rem}.board-victory-particles{position:absolute;inset:0}.board-victory-particle{position:absolute;left:var(--particle-x);top:var(--particle-y);width:var(--particle-size);height:var(--particle-size);border-radius:999px;background:linear-gradient(180deg,rgba(255,255,255,.92),var(--theme-accent));box-shadow:0 0 14px #ffffff4d;opacity:0;animation:board-victory-particle var(--particle-duration) ease-out var(--particle-delay) forwards}.board-victory-confetti{position:absolute;inset:0}.board-victory-confetto{position:absolute;left:var(--confetti-x);top:var(--confetti-y);width:.28rem;height:.66rem;border-radius:999px;background:var(--confetti-color);opacity:0;box-shadow:0 0 10px #ffffff38;transform:rotate(var(--confetti-rotation));animation:board-victory-confetto 1.35s ease-out var(--confetti-delay) forwards}.board-victory-confetto.square{width:.42rem;height:.42rem;border-radius:.12rem}@keyframes board-victory-pop{0%{transform:scale(1)}35%{transform:scale(1.014)}to{transform:scale(1)}}@keyframes board-victory-overlay{0%{opacity:0;transform:scale(.985)}12%,72%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.01)}}@keyframes board-victory-rays{0%{opacity:0;transform:rotate(0) scale(.9)}20%{opacity:.42}to{opacity:0;transform:rotate(32deg) scale(1.06)}}@keyframes board-victory-sweep{0%{transform:translate(-130%)}to{transform:translate(130%)}}@keyframes 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