:root{--nokia-green-dark: #4a5a34;--nokia-green-mid: #8b9a6b;--nokia-green-light: #c4cfa1;--nokia-green-bg: #9bbc0f;--nokia-phone-dark: #2c3e50;--nokia-phone-mid: #34495e;--nokia-phone-light: #3d566e}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:#1a1a2e;font-family:Courier New,monospace}.nokia-shell{min-height:100vh;display:grid;place-items:center;padding:1rem}.nokia-phone{background:linear-gradient(145deg,#3d566e,#2c3e50);border-radius:2rem;padding:1.5rem 1rem 2rem;box-shadow:0 20px 60px #00000080,inset 0 1px #ffffff1a;display:flex;flex-direction:column;align-items:center;gap:1rem;max-width:340px;width:100%}.nokia-brand{font-size:1.1rem;font-weight:700;letter-spacing:.4em;color:#fff9;text-transform:uppercase;-webkit-user-select:none;user-select:none}.nokia-screen-bezel{background:#2a2a2a;border-radius:.5rem;padding:.5rem;box-shadow:inset 0 2px 8px #0009,0 1px #ffffff0d;width:100%;display:flex;justify-content:center}.nokia-screen{background:var(--nokia-green-bg);border-radius:.25rem;padding:.5rem;display:flex;flex-direction:column;gap:.35rem;width:fit-content;box-shadow:inset 0 0 20px #4a5a344d}.screen-header{display:flex;justify-content:space-between;align-items:center;padding:0 .15rem}.screen-title{font-size:.85rem;font-weight:700;color:var(--nokia-green-dark);text-transform:uppercase;letter-spacing:.1em}.screen-score{font-size:.7rem;color:var(--nokia-green-dark);font-weight:700}.game-grid{background:var(--nokia-green-light);border:2px solid var(--nokia-green-dark);image-rendering:pixelated;position:relative;overflow:hidden}.snake-cell{background:var(--nokia-green-dark);border-radius:1px}.snake-head{background:#2d3a1e;box-shadow:0 0 0 1px #0003}.food-cell{background:var(--nokia-green-dark);border-radius:50%;box-shadow:inset 0 0 3px #0000004d}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#9bbc0feb;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.4rem;z-index:10}.overlay-gameover{background:#9bbc0ff2}.overlay-text{font-size:1.4rem;font-weight:700;color:var(--nokia-green-dark);text-transform:uppercase;letter-spacing:.15em}.overlay-sub{font-size:.65rem;color:var(--nokia-green-dark);text-transform:uppercase;letter-spacing:.05em}.overlay-keys{display:flex;flex-direction:column;align-items:center;gap:.15rem;margin-top:.3rem;font-size:.55rem;color:var(--nokia-green-mid);text-transform:uppercase}.screen-footer{display:flex;justify-content:space-between;padding:0 .15rem;font-size:.55rem;color:var(--nokia-green-mid);text-transform:uppercase;letter-spacing:.05em}.nokia-controls{display:flex;flex-direction:column;align-items:center;gap:.75rem;margin-top:.25rem}.nokia-dpad{display:grid;grid-template-areas:". up ." "left center right" ". down .";grid-template-columns:44px 44px 44px;grid-template-rows:44px 44px 44px;gap:2px}.dpad-btn{background:linear-gradient(145deg,#4a6580,#34495e);border:none;border-radius:.4rem;color:#ffffffb3;font-size:.9rem;cursor:pointer;display:grid;place-items:center;transition:all .1s;box-shadow:0 2px 4px #0000004d,inset 0 1px #ffffff1a;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.dpad-btn:active{background:linear-gradient(145deg,#34495e,#2c3e50);box-shadow:inset 0 2px 4px #0000004d;transform:scale(.95)}.dpad-up{grid-area:up}.dpad-down{grid-area:down}.dpad-left{grid-area:left}.dpad-right{grid-area:right}.dpad-center{grid-area:center;background:linear-gradient(145deg,#3d566e,#2c3e50);border-radius:50%;box-shadow:inset 0 2px 4px #0000004d}.nokia-action-btns{display:flex;gap:.75rem}.nokia-action{background:linear-gradient(145deg,#4a6580,#34495e);border:none;border-radius:1rem;color:#ffffffb3;font-size:.7rem;font-family:Courier New,monospace;font-weight:700;text-transform:uppercase;letter-spacing:.1em;padding:.5rem 1.5rem;cursor:pointer;transition:all .1s;box-shadow:0 2px 4px #0000004d,inset 0 1px #ffffff1a;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.nokia-action:active{background:linear-gradient(145deg,#34495e,#2c3e50);box-shadow:inset 0 2px 4px #0000004d;transform:scale(.95)}@media(max-height:700px){.nokia-phone{padding:1rem .75rem 1.25rem;gap:.5rem}.nokia-dpad{grid-template-columns:40px 40px 40px;grid-template-rows:40px 40px 40px}}