*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;background:#1a1a2e;color:#e7eefc;min-height:100vh}#app-root{min-height:100vh}.is-hidden{display:none!important}.header-compact{padding:12px 24px;border-bottom:1px solid rgba(255,255,255,.1)}.header-inner{display:flex;align-items:center;gap:16px;max-width:960px;margin:0 auto}.header-title{margin:0;font-size:1.25rem}.account-pill.is-hidden{display:none}.button{padding:8px 16px;border-radius:8px;border:1px solid rgba(255,255,255,.3);background:#ffffff1a;color:inherit;cursor:pointer}.button-secondary{background:#ffffff0d}.button:disabled{opacity:.5;cursor:not-allowed}.main-content{padding:24px;max-width:960px;margin:0 auto}.intro-view{padding:48px 24px;text-align:center}.intro-hint{opacity:.85}.dashboard-section,.puzzles-section,.pack-section,.puzzle-play-section{margin-bottom:32px}.dashboard-section h2,.puzzles-section h2,.pack-section h2,.puzzle-play-section h2{margin-top:0}.info-box{padding:12px;border:1px solid rgba(255,255,255,.15);border-radius:8px;margin-bottom:16px;background:#0003}.info-box h3{margin:0 0 8px;font-size:1rem}.muted{opacity:.8;font-size:.95em}.pieces-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.piece-chip{padding:4px 10px;background:#ffffff14;border-radius:6px;font-size:.9rem}.puzzle-list{display:flex;flex-wrap:wrap;gap:12px}.puzzle-card{text-align:left}.puzzle-play-layout{display:flex;gap:24px;margin:16px 0;flex-wrap:wrap}.pieces-sidebar{min-width:180px;padding:12px;border:1px solid rgba(255,255,255,.15);border-radius:8px;background:#0003}.pieces-sidebar h4{margin:0 0 12px;font-size:.95rem}.pieces-sidebar-list{display:flex;flex-direction:column;gap:8px}.sidebar-piece{padding:8px 12px;background:#6366f14d;border-radius:6px;cursor:grab;border:1px dashed rgba(255,255,255,.3)}.sidebar-piece:active{cursor:grabbing}.puzzle-grid-wrap{flex:1;min-width:300px;overflow:auto}.puzzle-grid{display:grid;gap:2px;background:#ffffff1a;padding:4px;border-radius:8px;max-width:100%}.grid-slot{aspect-ratio:1;min-width:24px;min-height:24px;background:#0000004d;border:1px solid rgba(255,255,255,.2);border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:.7rem}.grid-slot[data-droppable=true]{border-style:dashed}.grid-slot.filled{background:#6366f133;border-style:solid}.grid-slot:hover[data-droppable=true]{background:#ffffff14}