:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:#0d1117;color:#e6edf3}.game-container{min-height:100vh;display:flex;flex-direction:column;padding:.5rem 1rem;max-width:1200px;margin:0 auto;position:relative}.game-header{display:flex;justify-content:space-between;align-items:center;padding:.25rem 0;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:.5rem}.game-header h1{font-size:1.5rem;font-weight:800;letter-spacing:.05em;background:linear-gradient(135deg,#e53935,#fdd835,#43a047,#1e88e5);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.game-info{display:flex;gap:1rem;align-items:center;font-size:.85rem;color:#fff9}.direction-indicator{font-size:1.5rem}.hand-section{display:flex;flex-direction:column;align-items:center;gap:.25rem}.player-label{font-size:.8rem;color:#ffffff80;text-transform:uppercase;letter-spacing:.1em}.hand{display:flex;gap:.35rem;padding:.5rem;overflow-x:auto;max-width:100%;justify-content:center;flex-wrap:wrap}.player-hand{gap:.5rem;padding-bottom:.75rem}.uno-card{width:60px;height:90px;border-radius:8px;border:2px solid rgba(255,255,255,.2);display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700;position:relative;transition:transform .15s,box-shadow .15s;flex-shrink:0;-webkit-user-select:none;user-select:none}.uno-card.face-down{background:linear-gradient(135deg,#1a237e,#4a148c);border-color:#ffffff4d;color:#fff;font-size:.6rem;letter-spacing:.1em}.uno-card.playable{cursor:pointer;transform:translateY(-8px);box-shadow:0 8px 24px #fff3;border-color:#fff9}.uno-card.playable:hover{transform:translateY(-12px);box-shadow:0 12px 32px #ffffff4d}.card-value{font-size:.85rem;position:absolute;top:4px;left:6px}.card-value.bottom{top:auto;bottom:4px;right:6px;left:auto;transform:rotate(180deg)}.card-center{font-size:1.4rem;font-weight:900;text-shadow:1px 1px 2px rgba(0,0,0,.3)}.play-area{display:flex;justify-content:center;align-items:center;gap:2rem;padding:1rem 0;flex:1;min-height:150px}.discard-pile{display:flex;flex-direction:column;align-items:center;gap:.5rem}.current-color{padding:.25rem .75rem;border-radius:999px;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:#fff;font-weight:600}.draw-pile{display:flex;flex-direction:column;align-items:center;gap:.25rem;cursor:pointer}.draw-card{transition:transform .15s}.draw-pile:hover .draw-card{transform:scale(1.05)}.draw-label{font-size:.65rem;color:#fff6}.message-bar{text-align:center;padding:.5rem;font-size:.9rem;color:#fffc;background:#ffffff0d;border-radius:8px;min-height:2.5rem;display:flex;align-items:center;justify-content:center}.color-picker-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:grid;place-items:center;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.color-picker{background:#161b22;border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:1.5rem 2rem;text-align:center}.color-picker h3{margin-bottom:1rem}.color-options{display:flex;gap:.75rem}.color-btn{width:64px;height:64px;border-radius:12px;border:2px solid rgba(255,255,255,.3);color:#fff;font-weight:700;text-transform:capitalize;cursor:pointer;font-size:.8rem;transition:transform .15s,box-shadow .15s}.color-btn:hover{transform:scale(1.1);box-shadow:0 4px 20px #fff3}.game-over-box{background:#161b22;border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:2rem 3rem;text-align:center}.game-over-box h2{font-size:2rem;margin-bottom:.5rem}.game-over-box p{color:#fff9;margin-bottom:1.5rem}.new-game-btn{background:linear-gradient(135deg,#e53935,#1e88e5);color:#fff;border:none;padding:.75rem 2rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .15s,box-shadow .15s}.new-game-btn:hover{transform:translateY(-2px);box-shadow:0 4px 16px #e539354d}@media(max-width:600px){.uno-card{width:48px;height:72px}.card-center{font-size:1.1rem}.card-value{font-size:.7rem}.play-area{gap:1rem}.hand{gap:.25rem}}