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34px;width:34px;height:34px}.history-player>b{color:var(--blue-700);background:var(--wool);place-items:center;display:grid}.history-player>strong{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:14px;overflow:hidden}.history-player>small{color:var(--blue-700);background:var(--blue-100);border-radius:12px;padding:2px 6px;font-size:10px;font-weight:800}.history-time,.history-result,.history-meta{gap:5px;display:grid}.history-time span,.history-result span,.history-meta small{color:var(--muted);font-size:12px}.history-result strong{font-family:var(--app-font-display);font-size:25px}.outcome-win .history-result strong{color:var(--blue-600)}.outcome-loss .history-result strong{color:var(--error)}.outcome-draw .history-result strong{color:var(--text-2)}.opening-badge{width:max-content;max-width:100%;color:var(--gold-800);background:var(--gold-100);text-overflow:ellipsis;white-space:nowrap;border-radius:16px;padding:4px 8px;font-size:11px;font-weight:700;overflow:hidden}.history-review{min-height:42px;color:var(--ink-soft);background:var(--gold-500);box-shadow:var(--press-gold);white-space:nowrap;border:0;border-radius:10px;padding:0 15px;font-weight:800}.history-review:disabled{cursor:default;opacity:.55;box-shadow:none}.history-check{display:block}.history-check input{width:18px;height:18px;min-height:0;accent-color:var(--blue-600);margin:0}.history-empty{align-content:center;gap:8px;min-height:360px}.history-empty img{width:82px;margin:auto}.history-empty h2,.history-empty p{margin:0}.history-empty .primary{justify-self:center;margin-top:12px}@media(max-width:1000px){.game-history-row{grid-template-columns:132px minmax(180px,1fr) 110px minmax(150px,1fr) auto 24px}.history-result{grid-column:3}.history-time{display:none}}@media(max-width:760px){.history-controls{flex-direction:column;align-items:stretch}.history-tabs,.history-tools{overflow-x:auto}.history-tabs button,.history-tools>*,.history-filters label{flex:none}.game-history-row{grid-template-columns:132px 1fr 24px;align-items:start;gap:13px;padding:13px}.history-board,.game-history-row>.static-board{grid-row:1/span 2}.history-players{align-self:center}.history-result{grid-column:2;align-self:end}.history-result strong{font-size:22px}.history-time{display:none}.history-meta{grid-column:1/-1}.history-review{grid-column:1/-1;width:100%}.history-check{grid-area:1/3}}.static-board{box-shadow:var(--shadow-sm);border-radius:8px;flex-shrink:0;grid-template-rows:repeat(8,1fr);grid-template-columns:repeat(8,1fr);display:grid;overflow:hidden}.static-board span{place-items:center;display:grid}.static-board .light{background:#f0d9b5}.static-board .dark{background:#b58863}.static-board img{object-fit:contain;width:90%;height:90%}.openings-layout{grid-template-columns:minmax(0,1fr) 240px;align-items:start;gap:28px;display:grid}.openings-sidebar{top:var(--shell-header-offset);position:sticky}.openings-feature-cards{gap:12px;margin-bottom:20px;display:flex}.openings-feature-card{color:#fff;cursor:pointer;text-align:left;border:0;border-radius:12px;flex:1;justify-content:space-between;align-items:center;padding:16px 20px;transition:opacity .15s;display:flex}.openings-feature-card:hover{opacity:.9}.openings-feature-card .card-text h3{margin:0 0 4px;font-size:15px}.openings-feature-card .card-text p{opacity:.85;margin:0;font-size:12px}.openings-feature-card .card-icon{opacity:.7;font-size:28px}.feature-blue{background:#185fa5}.feature-gold{background:#ef9f27}.feature-green{background:#2d7a4f}.openings-tabs{border-bottom:2px solid var(--line);gap:0;margin-bottom:16px;display:flex}.openings-tab{cursor:pointer;color:var(--muted);background:0 0;border:0;border-bottom:2px solid #0000;margin-bottom:-2px;padding:8px 20px;font-size:14px}.openings-tab.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}.openings-search{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;margin-bottom:24px;padding:10px 40px 10px 14px;font-size:14px}.openings-search:focus{border-color:var(--brand);outline:none}.openings-search-wrap{position:relative}.openings-search-wrap>span{color:var(--muted);pointer-events:none;position:absolute;top:13px;right:13px}.openings-section-header{align-items:center;gap:8px;margin:24px 0 12px;font-size:16px;font-weight:700;display:flex}.openings-section-header:before{content:"";background:var(--brand);border-radius:50%;width:8px;height:8px;display:inline-block}.openings-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:8px;display:grid}.opening-card{min-width:0;box-shadow:var(--shadow-sm);cursor:pointer;border:1px solid var(--line);color:var(--ink);text-align:left;background:#fff;border-radius:12px;padding:0;transition:transform .15s,box-shadow .15s;overflow:hidden}.opening-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.opening-card .card-board{background:var(--cream);place-items:center;width:100%;padding:10px;display:grid}.opening-card .card-info{justify-content:space-between;align-items:flex-start;padding:10px 12px;display:flex}.opening-card .card-name{margin-bottom:2px;font-size:14px;font-weight:700}.opening-card .card-moves{color:var(--muted);font-family:monospace;font-size:12px}.opening-card .card-bm{color:var(--muted);font-size:16px}.openings-list{gap:10px;display:grid}.openings-list-item{border:1px solid var(--line);cursor:pointer;width:100%;color:var(--ink);text-align:left;background:#fff;border-radius:10px;align-items:center;gap:16px;padding:10px 16px;transition:border-color .15s;display:flex}.openings-list-item:hover{border-color:var(--brand)}.openings-list-item .item-name{font-size:14px;font-weight:600}.openings-list-item .item-name small{color:var(--muted);font-weight:400}.openings-list-item .item-moves{color:var(--muted);margin-top:4px;font-family:monospace;font-size:12px}.winrate-card{border:1px solid var(--line);background:#fff;border-radius:12px;margin-bottom:16px;padding:16px}.winrate-card h3{align-items:center;gap:6px;margin:0 0 12px;font-size:13px;font-weight:700;display:flex}.winrate-row{margin-bottom:10px}.winrate-label{justify-content:space-between;margin-bottom:3px;font-size:12px;display:flex}.winrate-bar{border-radius:3px;gap:1px;height:6px;display:flex;overflow:hidden}.winrate-bar .w{background:#5bab5b}.winrate-bar .d{background:#b8b8b8}.winrate-bar .b{background:#d94f4f}.winrate-legend{color:var(--muted);gap:10px;margin-top:8px;font-size:10px;display:flex}.openings-teacher-card{border:1px solid var(--gold);background:var(--gold-100);border-radius:12px;padding:18px}.openings-teacher-card h3{margin:4px 0 8px}.openings-teacher-card p{color:var(--muted);font-size:13px;line-height:1.6}.openings-teacher-card .primary-link{background:var(--gold);width:100%;margin-top:8px}.opening-detail-layout{grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:32px;display:grid}.opening-title{font-family:var(--app-font-display);margin:0}.opening-breadcrumb{color:var(--muted);margin-bottom:20px;font-size:13px}.opening-breadcrumb a{color:var(--brand);text-decoration:none}.opening-breadcrumb a:hover{text-decoration:underline}.opening-eco{background:var(--cream);border:1px solid var(--line);font-family:var(--app-font-body);color:var(--muted);vertical-align:middle;border-radius:4px;margin-left:10px;padding:2px 8px;font-size:12px;display:inline-block}.opening-firstmove{color:var(--brand);letter-spacing:2px;margin:8px 0 16px;font-family:monospace;font-size:22px;font-weight:700}.opening-description{color:var(--ink);margin-bottom:16px;font-size:14px;line-height:1.7}.opening-board-wrap{width:min(380px,100%);margin:0 0 12px}.opening-nav{flex-wrap:wrap;gap:8px;margin-bottom:6px;display:flex}.opening-nav button{border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:6px;padding:6px 12px;font-size:13px}.opening-nav button:disabled{opacity:.4;cursor:default}.opening-nav button:not(:disabled):hover{border-color:var(--brand);color:var(--brand)}.opening-step-label{color:var(--muted);margin-bottom:16px;font-size:12px}.opening-practice-btn{background:var(--gold);color:#fff;cursor:pointer;border:0;border-radius:10px;width:min(620px,100%);margin-bottom:24px;padding:14px;font-size:16px;font-weight:700}.opening-practice-btn:hover{opacity:.9}.opening-variations{max-width:620px}.opening-variations h2{margin-bottom:12px;font-size:16px;font-weight:700}.variation-card{border:1px solid var(--line);cursor:pointer;width:100%;color:var(--ink);text-align:left;background:#fff;border-radius:10px;align-items:center;gap:16px;margin-bottom:10px;padding:12px;transition:border-color .15s;display:flex}.variation-card:hover{border-color:var(--brand)}.variation-name{margin-bottom:3px;font-size:14px;font-weight:600}.variation-moves{color:var(--muted);margin-bottom:6px;font-family:monospace;font-size:12px}.variation-tag{border-radius:10px;padding:1px 8px;font-size:11px;font-weight:600;display:inline-block}.variation-tag.attack{color:#2d7a4f;background:#e8f5e9}.variation-tag.solid{color:#666;background:#f0f0f0}.variation-tag.advanced{color:var(--gold);background:#fff8e8}.continuation-table{border-collapse:collapse;width:100%;font-size:12px}.continuation-table th{text-align:left;color:var(--muted);padding:0 0 8px;font-weight:600}.continuation-table td{border-top:1px solid var(--line);padding:8px 0}.continuation-move{font-family:monospace;font-size:13px;font-weight:700}.continuation-games{color:var(--muted);font-size:11px}.continuation-bar{height:4px;margin:3px 0 2px}.continuation-scores{color:var(--muted);font-size:11px}.sparkline-wrap{border:1px solid var(--line);background:#fff;border-radius:12px;margin-top:16px;padding:16px}.sparkline-wrap h3{margin:0 0 10px;font-size:13px;font-weight:700}.sparkline-wrap svg{width:100%;height:auto;display:block}.course-recommend-card{border:1px solid var(--line);background:#fff;border-radius:12px;margin-top:16px;padding:16px}.course-recommend-card h3{margin:0 0 12px;font-size:13px;font-weight:700}.course-rec-item{align-items:center;gap:12px;display:flex}.course-rec-title{margin-bottom:2px;font-size:13px;font-weight:600}.course-rec-meta{color:var(--muted);margin-bottom:8px;font-size:12px}.course-rec-link{color:var(--gold);font-size:13px;font-weight:600;text-decoration:none}.course-rec-link:hover{text-decoration:underline}@media(max-width:960px){.openings-layout,.opening-detail-layout{grid-template-columns:1fr}.openings-sidebar{position:static}.openings-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:600px){.openings-grid{grid-template-columns:1fr}.openings-feature-cards{flex-direction:column}.opening-card .static-board{width:180px!important;height:180px!important}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}