[hidden],.modal-overlay[hidden],.modal-backdrop[hidden],.canvas-overlay[hidden]{display:none!important}:root{--bg-main:#0a0b10;--bg-surface:#13151f;--bg-elevated:#1c1f2e;--border-color:#ffffff1a;--text-main:#f4f4f5;--text-muted:#9ca3af;--accent-green:#22c55e;--accent-green-glow:#22c55e59;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);font-family:var(--font-family);flex-direction:column;min-height:100vh;line-height:1.5;display:flex;overflow-x:hidden}#app{flex-direction:column;min-height:100vh;display:flex}.site-header{background:var(--bg-surface);border-bottom:1px solid var(--border-color);z-index:50;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:10px 16px;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;max-width:900px;margin:0 auto;display:flex}.brand{align-items:center;gap:10px;display:flex}.brand-icon{font-size:1.8rem}.brand-title{letter-spacing:-.5px;background:linear-gradient(135deg,#4ade80 0%,#22c55e 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.15rem;font-weight:800}.brand-badge{color:var(--accent-green);letter-spacing:.5px;background:#22c55e26;border-radius:4px;padding:2px 6px;font-size:.65rem;font-weight:700}.header-actions{align-items:center;gap:8px;display:flex}.icon-btn{border:1px solid var(--border-color);color:var(--text-main);cursor:pointer;background:#ffffff0f;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;transition:all .2s;display:flex}.icon-btn:hover{background:#ffffff1f;transform:translateY(-1px)}.main-content{flex-direction:column;flex:1;align-items:center;padding:14px 16px 36px;display:flex}.game-container{flex-direction:column;align-items:center;gap:12px;width:100%;max-width:580px;display:flex}.scores-row{justify-content:space-between;align-items:center;gap:8px;width:100%;display:flex}.score-box{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);text-align:center;flex:1;padding:8px 14px}.score-box .label{text-transform:uppercase;color:var(--text-muted);letter-spacing:.5px;font-size:.72rem;font-weight:700}.score-box .value{font-family:var(--font-mono);color:#fff;font-size:1.35rem;font-weight:800;line-height:1.2}.score-box.highlight{box-shadow:0 0 12px var(--accent-green-glow);border-color:#22c55e80}.toolbar-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;width:100%;display:flex}.btn-group{gap:6px;display:flex}.btn{border:1px solid var(--border-color);color:var(--text-main);font-family:var(--font-family);border-radius:var(--radius-sm);cursor:pointer;background:#ffffff14;align-items:center;gap:4px;padding:6px 12px;font-size:.82rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:hover{background:#ffffff26}.btn.primary{color:#fff;background:linear-gradient(135deg,#16a34a 0%,#15803d 100%);border-color:#22c55e;font-weight:700}.btn.primary:hover{filter:brightness(1.1);box-shadow:0 0 12px var(--accent-green-glow)}.select-ctrl{border:1px solid var(--border-color);color:#fff;font-family:var(--font-family);border-radius:var(--radius-sm);cursor:pointer;background:#181922;outline:none;padding:6px 10px;font-size:.8rem;font-weight:600}.canvas-wrapper{aspect-ratio:1;border-radius:var(--radius-lg);touch-action:none;background:#0f1118;border:3px solid #ffffff1a;width:100%;max-width:520px;position:relative;overflow:hidden;box-shadow:0 20px 45px #000c}#snake-canvas{width:100%;height:100%;display:block}.canvas-overlay{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);text-align:center;color:#fff;z-index:10;background:#000000a6;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:20px;display:flex;position:absolute;inset:0}.canvas-overlay h3{font-size:1.5rem;font-weight:800}.canvas-overlay p{color:var(--text-muted);font-size:.9rem}.dpad-container{flex-direction:column;align-items:center;gap:4px;display:flex}.dpad-row{gap:6px;display:flex}.dpad-btn{background:var(--bg-surface);border:1px solid var(--border-color);color:#fff;border-radius:var(--radius-sm);cursor:pointer;justify-content:center;align-items:center;width:52px;height:44px;font-size:1.3rem;font-weight:800;transition:all .15s;display:flex}.dpad-btn:hover,.dpad-btn:active{background:var(--accent-green);color:#000;box-shadow:0 0 10px var(--accent-green-glow);transform:scale(.95)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#000c;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);text-align:center;width:100%;max-width:420px;padding:26px 24px;box-shadow:0 24px 50px #000000d9}.modal-icon{margin-bottom:8px;font-size:3rem}.modal-title{color:#fff;margin-bottom:8px;font-size:1.4rem;font-weight:800}.modal-desc{color:var(--text-muted);margin-bottom:20px;font-size:.9rem;line-height:1.5}.seo-section{width:100%;max-width:860px;margin:36px auto 0;padding:0 16px}.seo-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);margin-bottom:24px;padding:28px 24px}.seo-card h1{color:#fff;margin-bottom:14px;font-size:1.6rem;font-weight:800}.seo-card h2{color:#fff;align-items:center;gap:8px;margin:22px 0 12px;font-size:1.3rem;font-weight:800;display:flex}.seo-card p,.seo-card li{color:#d4d4d8;margin-bottom:12px;font-size:.92rem;line-height:1.68}.seo-card ul{margin-bottom:14px;padding-left:20px}.faq-list details{border:1px solid var(--border-color);border-radius:var(--radius-md);background:#ffffff05;margin-bottom:10px;padding:12px 16px}.faq-list summary{color:#fff;cursor:pointer;justify-content:space-between;align-items:center;font-size:.95rem;font-weight:700;list-style:none;display:flex}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--accent-green);font-size:1.2rem}.faq-list details[open] summary:after{content:"−"}.faq-list details[open] p{margin-top:10px;margin-bottom:0}.site-footer{border-top:1px solid var(--border-color);background:#08090d;margin-top:auto;padding:32px 16px}.footer-inner{max-width:900px;margin:0 auto}.matrix-title{text-transform:uppercase;letter-spacing:1px;color:var(--accent-green);margin-bottom:12px;font-size:.88rem;font-weight:800}.matrix-grid{flex-wrap:wrap;gap:10px;margin-bottom:24px;display:flex}.matrix-link{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-main);align-items:center;gap:6px;padding:8px 14px;font-size:.82rem;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.matrix-link:hover{border-color:var(--accent-green);background:#ffffff1a;transform:translateY(-1px)}.matrix-link.current{border-color:var(--accent-green);color:#4ade80;pointer-events:none;background:#22c55e26}.footer-copy{color:var(--text-muted);text-align:center;font-size:.78rem}