:root{--bg: #1a1d23;--panel: #242831;--panel-2: #2d323d;--fg: #e8ebf0;--fg-muted: #9aa3b2;--accent: #6ca8ff;--accent-strong: #4a8ae8;--danger: #ff6b6b;--success: #5cc77c;--border: #363b47;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100vh;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}button{font:inherit}.app{max-width:1200px;margin:0 auto;padding:24px}.selector-header h1{margin:0 0 8px;font-size:32px;letter-spacing:-.02em}.selector-header p{margin:0 0 24px;color:var(--fg-muted)}.gambit-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.gambit-card{width:100%;text-align:left;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px;cursor:pointer;color:var(--fg);transition:border-color .15s,transform .1s}.gambit-card:hover{border-color:var(--accent)}.gambit-card:active{transform:translateY(1px)}.gambit-card-title{font-size:18px;font-weight:600;margin-bottom:4px}.gambit-card-meta{font-size:12px;color:var(--fg-muted);margin-bottom:8px;text-transform:uppercase;letter-spacing:.05em}.gambit-card-desc{font-size:14px;color:var(--fg-muted);line-height:1.4}.trainer-header{margin-bottom:20px}.trainer-header h2{margin:8px 0 4px;font-size:26px;letter-spacing:-.01em}.trainer-header p{margin:0;color:var(--fg-muted);font-size:14px}.link-btn{background:none;border:none;color:var(--accent);cursor:pointer;padding:0;font-size:14px}.link-btn:hover{color:var(--accent-strong)}.trainer-body{display:grid;grid-template-columns:minmax(320px,560px) 280px;gap:24px;align-items:start}@media (max-width: 900px){.trainer-body{grid-template-columns:1fr}}.board-container{position:relative}.error-flash,.complete-flash{position:absolute;top:12px;left:50%;transform:translate(-50%);padding:8px 14px;border-radius:6px;font-size:14px;font-weight:500;pointer-events:none;box-shadow:0 4px 12px #0000004d}.error-flash{background:var(--danger);color:#fff}.complete-flash{background:var(--success);color:#0c2614}.trainer-aside{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px}.variation-picker{margin-bottom:16px}.variation-picker label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--fg-muted)}.variation-picker select{background:var(--panel-2);border:1px solid var(--border);color:var(--fg);padding:6px 8px;border-radius:6px;font:inherit}.trainer-status{font-size:14px;color:var(--fg-muted);margin-bottom:12px}.trainer-status strong{color:var(--fg)}.trainer-controls{display:flex;gap:8px;margin-bottom:16px}.trainer-controls button{flex:1;background:var(--panel-2);border:1px solid var(--border);color:var(--fg);padding:8px 12px;border-radius:6px;cursor:pointer}.trainer-controls button:hover{border-color:var(--accent)}.move-history h3{margin:0 0 8px;font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-muted)}.move-history-empty{margin:0;color:var(--fg-muted);font-size:14px;font-style:italic}.move-history-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px;font-variant-numeric:tabular-nums;font-family:SF Mono,Menlo,monospace;font-size:14px;max-height:260px;overflow-y:auto}.move-history-list li{display:grid;grid-template-columns:32px 1fr 1fr;gap:8px;padding:2px 4px}.move-num{color:var(--fg-muted)}