:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-accent: #0f3460;--text-primary: #e6e6e6;--text-secondary: #a6a6a6;--accent-cyan: #00d4ff;--accent-magenta: #ff00ff;--accent-yellow: #ffff00;--accent-orange: #ff6b35;--accent-green: #00ff88;--accent-red: #ff3366;--accent-blue: #4d7cff;--border-glow: rgba(0, 212, 255, .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);min-height:100vh;color:var(--text-primary);display:flex;justify-content:center;align-items:center}#game-container{display:flex;flex-direction:column;align-items:center;padding:20px}header h1{font-size:3rem;font-weight:700;background:linear-gradient(90deg,var(--accent-cyan),var(--accent-magenta),var(--accent-yellow));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px rgba(0,212,255,.5);margin-bottom:20px;letter-spacing:.1em}main{display:flex;flex-direction:column;align-items:center}#game-wrapper{display:flex;gap:20px;align-items:flex-start}#game-info-left{display:flex;flex-direction:column;gap:15px;min-width:140px;order:-1}#hold-piece{background-color:var(--bg-secondary);border-radius:4px;margin:0 auto;display:block}#game-board{border:3px solid var(--accent-cyan);border-radius:4px;box-shadow:0 0 20px var(--border-glow),inset 0 0 20px #00000080;background-color:var(--bg-secondary)}#game-info{display:flex;flex-direction:column;gap:15px;min-width:140px}.info-panel{background:linear-gradient(180deg,var(--bg-accent) 0%,var(--bg-secondary) 100%);border:2px solid var(--accent-cyan);border-radius:8px;padding:15px;text-align:center;box-shadow:0 0 10px var(--border-glow)}.info-panel h2{font-size:.9rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px}.info-panel p{font-size:1.8rem;font-weight:700;color:var(--accent-cyan);text-shadow:0 0 10px var(--border-glow)}#next-piece{background-color:var(--bg-secondary);border-radius:4px;margin:0 auto;display:block}#game-controls{margin-top:20px;color:var(--text-secondary);font-size:.9rem}#game-controls p{background:var(--bg-accent);padding:10px 20px;border-radius:20px;border:1px solid var(--border-glow)}