@property --otie-x{syntax:"<angle>";inherits:false;initial-value:0deg}@property --otie-y{syntax:"<angle>";inherits:false;initial-value:0deg}@property --otie-z{syntax:"<angle>";inherits:false;initial-value:0deg}@property --otie-scale{syntax:"<number>";inherits:false;initial-value:1}.otie-acting{transition:none!important}.otie-move{animation:.48s ease-out otieMove}@keyframes otieMove{35%{--otie-x:-8deg;--otie-y:3deg}}.otie-capture{animation:.64s cubic-bezier(.3,.9,.25,1) otieCapture}@keyframes otieCapture{0%{--otie-scale:1;--otie-x:0deg}18%{--otie-scale:1.1;--otie-x:-11deg;color:#ff7847}34%{--otie-scale:.85;--otie-x:14deg}50%{--otie-scale:1.04;--otie-x:-3deg}66%{--otie-scale:.95;--otie-x:5deg;color:#ff7847}to{--otie-scale:1;--otie-x:0deg}}.otie-castle{animation:.9s cubic-bezier(.45,0,.2,1) otieCastle}@keyframes otieCastle{0%{--otie-y:0deg}50%{color:#4fa3ff}to{--otie-y:360deg}}.otie-check{animation:.65s ease-in-out otieCheck}@keyframes otieCheck{15%{--otie-z:10deg;color:#ffb020}35%{--otie-z:-10deg;color:#ffb020}55%{--otie-z:7deg;color:#ffb020}75%{--otie-z:-3deg}}.otie-promote{animation:.95s cubic-bezier(.34,1.56,.64,1) otiePromote}@keyframes otiePromote{0%{--otie-scale:1;--otie-x:0deg}20%{--otie-scale:.92}55%{--otie-scale:1.14;--otie-x:-10deg;color:#ffd24a}78%{color:#ffd24a}to{--otie-scale:1;--otie-x:0deg}}.otie-checkmate{animation:1s cubic-bezier(.2,.9,.25,1) otieCheckmate}@keyframes otieCheckmate{0%{--otie-x:0deg;--otie-z:0deg}22%{--otie-x:-20deg;color:#ff5d3a}40%{--otie-x:-20deg;--otie-z:0deg}to{--otie-x:0deg;--otie-z:360deg;color:#ffd24a}}.otie-victory{animation:1.6s ease-in-out otieVictory,1.6s step-end otieVictoryFlag}@keyframes otieVictory{0%{--otie-z:0deg}14%{--otie-z:17deg}28%{--otie-z:-17deg}42%{--otie-z:13deg}56%{--otie-z:-13deg}70%{--otie-z:9deg}84%{--otie-z:-5deg}to{--otie-z:0deg}}@keyframes otieVictoryFlag{0%,to{color:var(--brand-logo-accent,var(--accent))}16%{color:var(--text-main)}33%{color:var(--brand-logo-accent,var(--accent))}50%{color:var(--text-main)}66%{color:var(--brand-logo-accent,var(--accent))}83%{color:var(--text-main)}}.otie-victory .brand-logo-neutral,.otie-victory .mark-neutral{animation:1.6s step-end otieVictoryFlagNeutral}@keyframes otieVictoryFlagNeutral{0%,to{fill:var(--text-main)}16%{fill:var(--brand-logo-accent,var(--accent))}33%{fill:var(--text-main)}50%{fill:var(--brand-logo-accent,var(--accent))}66%{fill:var(--text-main)}83%{fill:var(--brand-logo-accent,var(--accent))}}.otie-defeat{animation:2.4s ease-in-out otieDefeat}@keyframes otieDefeat{22%{--otie-x:-34deg;--otie-z:-7deg;--otie-scale:.9;color:#8d8d94}68%{--otie-x:-34deg;--otie-z:-7deg;--otie-scale:.9;color:#8d8d94}}.otie-defeat .brand-logo-neutral,.otie-defeat .mark-neutral{animation:2.4s ease-in-out otieNeutralDrain}@keyframes otieNeutralDrain{22%{fill:#6e6e76}68%{fill:#6e6e76}}.otie-draw{animation:1.2s ease-in-out otieDraw}@keyframes otieDraw{22%{--otie-y:15deg}52%{--otie-y:-15deg}78%{--otie-y:6deg}}.otie-enpassant{animation:.82s ease-in-out otieEnPassant}@keyframes otieEnPassant{0%{--otie-y:0deg;--otie-z:0deg}20%{--otie-y:32deg}38%{--otie-y:27deg;--otie-z:-7deg;color:#ff7847}60%{--otie-y:-16deg;--otie-z:5deg}80%{--otie-y:7deg}to{--otie-y:0deg;--otie-z:0deg}}@media (prefers-reduced-motion:reduce){.otie-move,.otie-capture,.otie-castle,.otie-check,.otie-enpassant{animation:none}.otie-promote,.otie-checkmate,.otie-victory,.otie-draw{animation:.9s ease-in-out otieQuietPulse}.otie-defeat{animation:1.4s ease-in-out otieQuietDim}.otie-defeat .brand-logo-neutral,.otie-defeat .mark-neutral,.otie-victory .brand-logo-neutral,.otie-victory .mark-neutral{animation:none}}@keyframes otieQuietPulse{50%{color:#ffd24a}}@keyframes otieQuietDim{50%{color:#8d8d94}}@property 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.lobby-content,.analysis-study-column,.analysis-tool-card,.theme-preview-panel,.status-toast){--text-main:var(--panel-text-main);--text-muted:var(--panel-text-muted);--text-dim:var(--panel-text-dim);--surface-soft:var(--panel-surface-soft);--surface-hover:var(--panel-surface-hover);--surface-border:var(--panel-surface-border);--accent-text:var(--panel-accent-text);color:var(--text-main)}a{color:inherit;text-decoration:none}a:hover:not(.primary):not(.secondary-action):not(.lobby-ghost):not(.small){color:var(--accent-text)}::-webkit-scrollbar{width:0;height:0}input,button,select{font-family:inherit}.app-header{z-index:100;justify-content:space-between;align-items:center;padding:12px 14px;display:flex;position:relative}.app-dialog-backdrop{z-index:160;background:color-mix(in srgb, var(--bg-core) 75%, transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);overscroll-behavior:contain;justify-content:center;align-items:center;padding:24px;animation:.14s ease-out both 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i.dark{background:var(--swatch-dark)}.theme-preset-label{max-width:100%;color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;font-size:11px;line-height:1.1;overflow:hidden}.theme-preset-button.selected .theme-preset-label{color:var(--text-main)}.theme-customize-button{width:100%;min-height:38px}.theme-customize-button.selected{color:var(--accent-text);border-color:var(--accent-border);background:var(--accent-faded)}.theme-menu-divider{background:var(--surface-border);height:1px;margin:2px 0}.modal.theme-editor{text-align:left;max-width:580px}.theme-editor h3{margin-bottom:6px}.theme-editor-intro{color:var(--text-muted);margin:0 0 18px;font-size:13px;line-height:1.5}.theme-editor-layout{grid-template-columns:210px minmax(0,1fr);align-items:start;gap:20px;display:grid}.theme-preview{background:var(--bg-gradient);border:1px solid var(--surface-border);width:210px;min-height:250px;box-shadow:0 18px 40px -16px var(--shadow-medium);border-radius:14px;align-items:center;padding:14px;display:flex;overflow:hidden}.theme-preview-panel{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:11px;gap:10px;width:100%;padding:12px;display:grid}.theme-preview-brand{color:var(--text-main);align-items:center;gap:6px;font-size:11px;font-weight:800;display:flex}.theme-preview-brand span{background:var(--accent);width:7px;height:7px;box-shadow:0 0 8px var(--accent-glow);border-radius:50%}.theme-preview-board{aspect-ratio:1;border:1px solid color-mix(in srgb, var(--text-main) 42%, transparent);border-radius:8px;grid-template-columns:repeat(4,1fr);width:100%;display:grid;overflow:hidden}.theme-preview-square{place-items:center;display:grid}.theme-preview-square.light{background:var(--board-light)}.theme-preview-square.dark{background:var(--board-dark)}.theme-preview-square i{width:88%;height:88%;display:block}.theme-preview-square svg{width:100%;height:100%;display:block}.theme-preview-action{background:var(--accent);color:var(--on-accent);text-align:center;border-radius:7px;padding:7px 8px;font-size:10px;font-weight:800}.theme-fields{grid-template-columns:1fr 1fr;gap:12px;display:grid}.theme-field{color:var(--text-muted);gap:6px;font-size:12px;display:grid}.theme-field input[type=color]{cursor:pointer;min-height:44px;padding:5px}.theme-contrast-note{border:1px solid var(--surface-border);border-left:3px solid var(--accent);background:var(--surface-soft);min-height:34px;color:var(--text-main);border-radius:8px;margin:14px 0 0;padding:9px 10px;font-size:12px;line-height:1.4}.theme-contrast-note.ok{color:var(--text-muted)}.theme-editor-actions{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.theme-editor-actions button{min-height:44px;padding:11px 14px}.theme-editor-actions .primary{color:var(--on-accent)}@media 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