:root{--bg-page: #f9c0cc;--bg-panel: #1a0a3e;--accent-cyan: #00d4e8;--accent-cyan-dark: #00afc0;--accent-yellow: #ffe000;--text-dark: #1a0a3e;--text-light: #ffffff;--text-muted: #f0c0d0;--border-color: #1a0a3e;--shadow: 4px 4px 0 #1a0a3e;--font: "Press Start 2P", monospace}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font);background-color:var(--bg-page);color:var(--text-dark)}.app-root{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.5rem;background:var(--bg-panel);border-bottom:4px solid var(--border-color);flex-shrink:0}.header-logo{font-size:1rem;color:var(--text-light);letter-spacing:.1em;margin:0}.header-back-btn{display:flex;align-items:center;gap:.5rem;background:none;border:none;color:var(--text-muted);font-family:var(--font);font-size:.55rem;letter-spacing:.05em;cursor:pointer;padding:.4rem .5rem;transition:color .1s}.header-back-btn:hover{color:var(--text-light)}.header-back-btn:focus-visible{outline:2px solid var(--accent-yellow);outline-offset:2px}.header-score{font-size:.55rem;color:var(--text-muted);text-align:right;letter-spacing:.05em}.header-score span{color:var(--accent-yellow);display:block;font-size:.85rem;margin-top:.25rem}.home-page{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;padding:2rem 1rem;gap:2rem}.home-hero{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center}.home-title{font-size:clamp(1.5rem,6vw,2.5rem);color:var(--text-dark);letter-spacing:.1em;margin:0;text-shadow:4px 4px 0 var(--bg-panel)}.home-subtitle{font-size:.55rem;color:var(--text-dark);margin:0;letter-spacing:.1em;opacity:.85}.btn-primary{display:inline-flex;align-items:center;gap:.5rem;padding:1rem 2rem;font-family:var(--font);font-size:.8rem;letter-spacing:.08em;color:var(--text-dark);background:var(--accent-cyan);border:4px solid var(--border-color);border-radius:0;box-shadow:var(--shadow);cursor:pointer;text-transform:uppercase;transition:transform .08s,box-shadow .08s}.btn-primary:hover{background:var(--accent-cyan-dark);transform:translate(2px,2px);box-shadow:2px 2px 0 var(--border-color)}.btn-primary:active{transform:translate(4px,4px);box-shadow:none}.btn-primary:focus-visible{outline:3px solid var(--accent-yellow);outline-offset:3px}.card{background:var(--bg-panel);border:4px solid var(--border-color);box-shadow:var(--shadow);padding:1.25rem 1.5rem;width:100%;max-width:420px}.card-title{font-size:.55rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-cyan);margin:0 0 1rem;padding-bottom:.75rem;border-bottom:2px solid rgba(255,255,255,.15)}.controls-grid{display:grid;grid-template-columns:auto 1fr;gap:.75rem 1.25rem;align-items:center}.controls-key{font-family:var(--font);font-size:.5rem;color:var(--text-dark);background:var(--accent-yellow);border:2px solid var(--border-color);box-shadow:2px 2px 0 var(--border-color);padding:.3rem .6rem;text-align:center;white-space:nowrap;max-width:9rem}.controls-desc{font-size:.5rem;color:var(--text-light);letter-spacing:.05em;min-width:0}.best-score-row{display:flex;align-items:center;justify-content:space-between}.best-score-value{font-size:1rem;color:var(--accent-yellow)}.game-page{display:flex;flex-direction:column;flex:1;overflow:hidden}.game-canvas-area{display:flex;align-items:center;justify-content:center;flex:1;overflow:hidden}