:root{--accent: #16a34a;--accent-dark: #15803d;--accent-soft: #dcfce7;--bg: #f8fafc;--surface: #ffffff;--text: #0f172a;--text-muted: #64748b;--border: #e2e8f0;--danger: #b91c1c;--radius: 12px;--shadow: 0 1px 3px rgb(15 23 42 / 8%);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;font-weight:400;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100dvh}#root{min-height:100dvh}.app{min-height:100dvh;display:flex;flex-direction:column}.site-header{padding:1rem 1.25rem;background:var(--surface);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:.75rem;max-width:32rem;margin:0 auto}.brand-icon{border-radius:10px}.brand-title{margin:0;font-size:1.25rem;font-weight:700;color:var(--accent-dark)}.brand-tagline{margin:0;font-size:.875rem;color:var(--text-muted)}.main{flex:1;width:100%;max-width:32rem;margin:0 auto;padding:1rem 1.25rem 2rem;display:flex;flex-direction:column;gap:1rem}.banner{display:flex;gap:.75rem;align-items:flex-start;padding:.75rem 1rem;border-radius:var(--radius);font-size:.875rem}.banner--warn{background:#fffbeb;border:1px solid #fde68a;color:#78350f}.banner p{margin:0;flex:1}.banner-dismiss{border:none;background:transparent;color:var(--accent-dark);font-weight:600;cursor:pointer;font-size:.875rem;padding:0;white-space:nowrap}.score-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}.score-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.75rem 1rem;box-shadow:var(--shadow)}.score-card--best{border-color:var(--accent-soft);background:linear-gradient(180deg,#f0fdf4 0%,var(--surface) 100%)}.score-label{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.score-value{font-size:1.75rem;font-weight:700;color:var(--accent-dark);font-variant-numeric:tabular-nums}.play-area{touch-action:none}.game-board{position:relative;display:grid;gap:1px;background:var(--border);border:2px solid var(--accent);border-radius:var(--radius);overflow:hidden;aspect-ratio:1;width:100%;max-width:100%}.game-board--over{filter:saturate(.85)}.cell{background:#f1f5f9}.cell-head{background:var(--accent);border-radius:2px}.cell-body{background:#4ade80}.cell-food{background:#ef4444;border-radius:50%;transform:scale(.65)}.game-over-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#0f172a73}.game-over-title{margin:0;color:#fff;font-size:1.5rem;font-weight:700;text-shadow:0 1px 2px rgb(0 0 0 / 30%)}.control-bar{text-align:center}.hint{margin:0 0 .75rem;font-size:.875rem;color:var(--text-muted)}.button-row{display:flex;flex-wrap:wrap;gap:.5rem}.button-row--centre{justify-content:center}.btn{border-radius:999px;border:1px solid transparent;padding:.55rem 1.1rem;font-size:.9375rem;font-weight:600;cursor:pointer;font-family:inherit}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-dark)}.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-secondary:hover:not(:disabled){border-color:var(--accent);color:var(--accent-dark)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover:not(:disabled){color:var(--accent-dark)}.dpad{display:none;flex-direction:column;align-items:center;gap:.35rem;margin-top:.25rem}.dpad-row{display:flex;gap:.35rem;justify-content:center}.dpad-row--middle{align-items:center}.dpad-centre{width:2.75rem;height:2.75rem}.dpad-btn{width:3rem;height:3rem;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--accent-dark);font-size:1rem;cursor:pointer;box-shadow:var(--shadow)}.dpad-btn:active:not(:disabled){background:var(--accent-soft)}@media(max-width:768px),(hover:none){.dpad{display:flex}}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}.panel-title{margin:0 0 .5rem;font-size:1rem;color:var(--accent-dark)}.panel-lead{margin:0 0 .75rem;font-size:.875rem;color:var(--text-muted)}.notice{margin:.75rem 0 0;font-size:.875rem}.notice--ok{color:var(--accent-dark)}.notice--error{color:var(--danger)}.build-house-daily-ad{width:100%;max-width:60rem;margin:0 auto;padding:0 1.25rem 1rem}.build-house-daily-ad__link{display:block;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);line-height:0}.build-house-daily-ad__link:focus{outline:none}.build-house-daily-ad__link:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.build-house-daily-ad__image{display:block;width:100%;height:auto}.site-footer{padding:1.25rem;text-align:center;font-size:.8125rem;color:var(--text-muted);border-top:1px solid var(--border);background:var(--surface)}.site-footer p{margin:0 0 .5rem}.footer-nav a{color:var(--accent-dark);text-decoration:none;font-weight:500}.footer-nav a:hover{text-decoration:underline}.footer-sep{margin:0 .35rem}.footer-brand a{color:var(--text-muted);text-decoration:none}.footer-brand a:hover{color:var(--accent-dark)}