:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color-scheme:dark;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input{font:inherit}button{cursor:pointer}.app{min-height:100vh;transition:background .18s ease,color .18s ease}.app.dark{--bg: #0b1020;--surface: rgba(20, 28, 50, .86);--surface-strong: #18213a;--surface-soft: #202b48;--text: #f5f7fb;--muted: #aab4ca;--border: rgba(255, 255, 255, .1);--accent: #8b9cff;--accent-strong: #6f83ff;--danger: #ff7d8c;background:radial-gradient(circle at 15% 10%,rgba(90,107,255,.2),transparent 30%),radial-gradient(circle at 85% 85%,rgba(136,91,255,.18),transparent 30%),var(--bg);color:var(--text)}.app.light{--bg: #eef1f8;--surface: rgba(255, 255, 255, .92);--surface-strong: #ffffff;--surface-soft: #e8ebf5;--text: #172033;--muted: #657087;--border: rgba(23, 32, 51, .12);--accent: #5268e8;--accent-strong: #3851d6;--danger: #d95367;background:radial-gradient(circle at 15% 10%,rgba(82,104,232,.12),transparent 30%),radial-gradient(circle at 85% 85%,rgba(136,91,255,.1),transparent 30%),var(--bg);color:var(--text);color-scheme:light}.screen{min-height:100vh;width:min(1180px,100%);margin:0 auto;padding:32px}.centered-screen{display:grid;place-items:center}.hero-card,.content-card,.calculator-shell{width:min(760px,100%);border:1px solid var(--border);background:var(--surface);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-radius:28px;box-shadow:0 24px 80px #0000003d}.hero-card{padding:52px;text-align:center;position:relative}.hero-card h1,.menu-card h1{margin:8px 0 10px;font-size:clamp(2rem,6vw,4rem);line-height:1}.eyebrow{margin:0;text-transform:uppercase;letter-spacing:.14em;font-weight:800;font-size:.78rem;color:var(--accent)}.muted{color:var(--muted)}.theme-toggle{position:absolute;top:18px;right:18px;border:1px solid var(--border);border-radius:999px;padding:10px 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24px;min-height:52px;color:#fff;background:var(--accent-strong);font-weight:800}.primary-button:disabled{opacity:.45;cursor:not-allowed}.menu-card{padding:42px;text-align:center}.menu-main{width:100%}.menu-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:34px}.feature-card{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:28px;border-radius:22px;color:var(--text);background:var(--surface-strong);box-shadow:inset 0 0 0 1px var(--border);transition:transform .15s ease,box-shadow .15s ease}.feature-card:hover{transform:translateY(-4px);box-shadow:inset 0 0 0 1px var(--accent),0 18px 32px #00000024}.feature-card strong{font-size:1.25rem}.feature-card span:last-child{color:var(--muted);line-height:1.5}.feature-icon{font-size:3rem}.text-button{margin-top:24px;background:transparent;color:var(--muted);text-decoration:underline;text-underline-offset:4px}.top-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin-bottom:52px}.secondary-button,.result-pill,.score-pill{border:1px solid var(--border);border-radius:14px;background:var(--surface);color:var(--text);padding:12px 16px}.secondary-button{justify-self:start}.result-pill{font-size:clamp(1.1rem,2vw,1.4rem);font-weight:800;text-align:center}.score-pill{justify-self:end;font-weight:800}.game-layout{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:26px;width:min(850px,100%);margin:0 auto}.choice-display{text-align:center}.choice-display p{color:var(--muted);font-weight:700}.choice-preview{display:grid;place-items:center;aspect-ratio:1;border:1px solid var(--border);border-radius:28px;background:var(--surface);font-size:clamp(5rem,13vw,9rem);margin-bottom:16px}.versus{font-weight:900;color:var(--muted)}.choice-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;width:min(680px,100%);margin:52px auto 0}.choice-buttons button{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 16px;border-radius:18px;color:var(--text);background:var(--surface-strong);box-shadow:inset 0 0 0 1px var(--border);font-weight:800}.choice-buttons button:hover{box-shadow:inset 0 0 0 2px var(--accent)}.choice-buttons span{font-size:2.4rem}.calculator-screen{display:grid;place-items:center}.calculator-shell{max-width:560px;padding:26px}.calculator-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.calculator-header h2{margin:0}.calculator-display{min-height:100px;display:flex;align-items:center;justify-content:flex-end;overflow-wrap:anywhere;padding:18px 22px;border:1px solid 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1fr;gap:10px;max-width:100%}.choice-preview{font-size:4rem;border-radius:18px;margin-bottom:8px}.choice-display p{margin:0 0 8px}.versus{text-align:center;font-size:.85rem}.choice-buttons{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:24px}.choice-buttons button{padding:12px 6px}.choice-buttons span{font-size:2rem}.calculator-shell{padding:18px}.calculator-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.calculator-grid button{min-height:60px}}.snake-screen{display:grid;place-items:start center}.snake-shell{width:min(650px,100%);padding:24px;border:1px solid var(--border, rgba(127, 127, 127, .25));background:radial-gradient(circle at top right,rgba(55,178,77,.08),transparent 34%),var(--surface, rgba(255, 255, 255, .08));border-radius:28px;box-sizing:border-box}.snake-header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin-bottom:12px}.snake-header 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#0003;box-sizing:border-box}.snake-board{width:100%;aspect-ratio:1;display:grid;grid-template-columns:repeat(20,1fr);grid-template-rows:repeat(20,1fr);gap:1px;padding:5px;border:1px solid rgba(255,255,255,.08);border-radius:16px;overflow:hidden;box-sizing:border-box;background:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(145deg,#111b16,#0b120e);background-size:5% 5%,5% 5%,auto;box-shadow:inset 0 0 45px #00000080;touch-action:none;user-select:none;-webkit-user-select:none}.snake-cell{position:relative;min-width:0;min-height:0;border-radius:20%}.snake-body{z-index:2;margin:1px;border-radius:34%;background:linear-gradient(145deg,#69db7c,#2f9e44);box-shadow:inset 0 1px 1px #ffffff47,inset 0 -2px 2px #0000002e,0 0 7px #51cf6638}.snake-body:after{content:"";position:absolute;inset:20%;border-radius:50%;background:#ffffff17}.snake-tail{transform:scale(.8);border-radius:50%}.snake-head{z-index:3;margin:0;border-radius:38%;background:linear-gradient(145deg,#8ce99a,#2b8a3e);box-shadow:inset 0 2px 2px #ffffff59,0 0 12px #51cf667a}.snake-head:before,.snake-head:after{content:"";position:absolute;width:18%;height:18%;border-radius:50%;background:#07120a;box-shadow:0 0 0 1px #ffffff2e}.snake-head-right:before{right:14%;top:20%}.snake-head-right:after{right:14%;bottom:20%}.snake-head-left:before{left:14%;top:20%}.snake-head-left:after{left:14%;bottom:20%}.snake-head-up:before{top:14%;left:20%}.snake-head-up:after{top:14%;right:20%}.snake-head-down:before{bottom:14%;left:20%}.snake-head-down:after{bottom:14%;right:20%}.snake-food{z-index:4;margin:8%;border-radius:45% 55% 50% 50%;background:radial-gradient(circle at 35% 28%,#ff8787 0 12%,#fa5252 35%,#c92a2a);box-shadow:inset 0 1px 1px #ffffff59,0 0 11px #fa5252ad;animation:snake-food-pulse 1.15s ease-in-out infinite alternate}.snake-food:before{content:"";position:absolute;width:18%;height:35%;top:-18%;left:52%;border-radius:999px;background:#8d6e3f;transform:rotate(18deg)}.snake-food:after{content:"";position:absolute;width:35%;height:22%;top:-10%;left:58%;border-radius:100% 0;background:#69db7c;transform:rotate(-16deg)}.snake-bonus-food{z-index:5;margin:12%;border-radius:50%;background:radial-gradient(circle at 32% 26%,#fff3bf 0 10%,#ffd43b 28%,#f08c00 72%,#c65d00);box-shadow:inset 0 1px 1px #ffffff8c,0 0 15px #ffd43be6;animation:snake-bonus-pulse .42s ease-in-out infinite alternate}.snake-bonus-food:before{content:"+5";position:absolute;inset:-58% -35% auto;color:#fff3bf;font-size:.55rem;font-weight:900;text-align:center;text-shadow:0 1px 3px rgba(0,0,0,.7)}@keyframes snake-bonus-pulse{0%{transform:scale(.78) rotate(-8deg)}to{transform:scale(1) rotate(8deg)}}@keyframes snake-food-pulse{0%{transform:scale(.88);filter:saturate(.95)}to{transform:scale(1);filter:saturate(1.15)}}.snake-overlay{position:absolute;inset:7px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;border-radius:16px;pointer-events:none;background:#050c0885;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);color:#fff;text-align:center}.snake-overlay span{font-size:clamp(1.7rem,6vw,3rem);font-weight:950;letter-spacing:.12em;text-shadow:0 4px 20px rgba(0,0,0,.55)}.snake-overlay small{font-size:.95rem;font-weight:800;opacity:.82}.snake-overlay-ready{background:#050c0857}.snake-overlay-gameover{background:#1e05078a}.snake-overlay-won{background:#05121c80}.snake-actions{display:flex;justify-content:center;gap:10px;margin-top:16px;flex-wrap:wrap}.snake-actions .primary-button,.snake-actions .secondary-button{min-width:120px}.snake-pad{display:flex;flex-direction:column;align-items:center;gap:8px;margin-top:16px}.snake-pad-row{display:flex;gap:8px}.snake-pad button{width:54px;height:54px;border:1px solid var(--border, rgba(127, 127, 127, .3));border-radius:16px;background:linear-gradient(145deg,#ffffff1a,#ffffff05),var(--surface-strong, rgba(127, 127, 127, .14));color:inherit;font:inherit;font-size:1.45rem;font-weight:900;cursor:pointer;box-shadow:inset 0 1px #ffffff1f,0 5px 12px #0000001f;transition:transform .12s ease,border-color .12s ease,background .12s ease}.snake-pad button:active{transform:scale(.92);border-color:#51cf66b3;background:#37b24d33}.snake-help{margin:14px 0 0;display:flex;justify-content:center;gap:14px;flex-wrap:wrap;text-align:center;font-size:.84rem;color:var(--muted, inherit)}@media(hover:hover)and (pointer:fine){.snake-pad button:hover{transform:translateY(-2px);border-color:#51cf6685}}@media(prefers-reduced-motion:reduce){.snake-food{animation:none}.snake-pad button{transition:none}}@media(max-width:700px){.snake-screen{padding:10px}.snake-shell{padding:13px;border-radius:20px}.snake-header{grid-template-columns:1fr auto}.snake-header h2{display:none}.snake-board-frame{padding:5px;border-radius:18px}.snake-board{padding:4px;border-radius:13px}.snake-overlay{inset:5px;border-radius:13px}.snake-pad button{width:50px;height:50px}.snake-help{gap:8px;font-size:.78rem}}.flappy-screen{display:grid;place-items:center}.flappy-shell{width:min(460px,100%);padding:22px;border:1px solid var(--border);border-radius:28px;background:var(--surface);box-shadow:0 24px 80px #00000038}.flappy-header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin-bottom:14px}.flappy-header h2{margin:0;text-align:center}.flappy-best{justify-self:end;color:var(--muted);font-weight:800}.flappy-stage{position:relative;display:block;width:100%;aspect-ratio:360 / 520;overflow:hidden;padding:0;border:0;border-radius:24px;cursor:pointer;touch-action:manipulation;-webkit-user-select:none;user-select:none;background:linear-gradient(to bottom,#71d8f4,#9ce7f8 55%,#d9f5d1 55%,#c9efbb)}.flappy-score{position:absolute;z-index:8;top:20px;left:50%;transform:translate(-50%);color:#fff;font-size:clamp(2rem,11vw,3.2rem);font-weight:1000;line-height:1;text-shadow:0 3px 0 rgba(0,0,0,.28),0 0 8px rgba(0,0,0,.18)}.flappy-cloud{position:absolute;width:92px;height:26px;border-radius:999px;background:#ffffff9e}.flappy-cloud:before,.flappy-cloud:after{content:"";position:absolute;bottom:0;border-radius:50%;background:inherit}.flappy-cloud:before{left:14px;width:38px;height:38px}.flappy-cloud:after{right:12px;width:48px;height:48px}.cloud-one{top:16%;left:12%;transform:scale(.85)}.cloud-two{top:34%;right:4%;transform:scale(.65)}.flappy-pipe{position:absolute;z-index:3;box-sizing:border-box;border:3px solid #276b2f;background:linear-gradient(to right,#52bd4b,#82df67 18%,#4db345 70%,#318b37);box-shadow:inset 7px 0 #ffffff26,inset -7px 0 #0000001a}.flappy-pipe-top{top:0;border-top:0}.flappy-pipe-bottom{bottom:0;border-bottom:0}.flappy-pipe-top:after,.flappy-pipe-bottom:before{content:"";position:absolute;left:-9%;width:118%;height:22px;border:3px solid #276b2f;background:linear-gradient(to right,#61ca55,#91e973 22%,#4fb446 72%,#378f3d)}.flappy-pipe-top:after{bottom:-3px;border-radius:4px 4px 7px 7px}.flappy-pipe-bottom:before{top:-3px;border-radius:7px 7px 4px 4px}.flappy-bird{position:absolute;z-index:6;box-sizing:border-box;border:2px solid #a86712;border-radius:48% 52% 45% 48%;background:linear-gradient(135deg,#ffef67,#ffb82f 72%);box-shadow:inset 0 -5px #d9800f38,0 4px 7px #0000002e;transform-origin:center}.flappy-wing{position:absolute;left:-11%;top:40%;width:54%;height:38%;border:2px solid #a86712;border-radius:55% 30% 55% 45%;background:#ffda3d;transform:rotate(10deg)}.flappy-eye{position:absolute;right:14%;top:18%;width:24%;aspect-ratio:1;border-radius:50%;border:2px solid white;background:#202020;box-shadow:0 0 0 1px #0000001f}.flappy-beak{position:absolute;right:-29%;top:47%;width:37%;height:22%;border:2px solid #ac4f15;border-radius:2px 8px 8px 2px;background:#f57c24}.flappy-overlay{position:absolute;z-index:10;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;color:#fff;text-align:center;background:#0000001f;text-shadow:0 2px 5px rgba(0,0,0,.4)}.flappy-overlay strong{font-size:clamp(1.7rem,8vw,2.5rem)}.flappy-overlay span{padding:7px 12px;border-radius:999px;background:#0000003d;font-weight:800}.flappy-ground{position:absolute;z-index:5;left:0;right:0;bottom:0;height:18px;border-top:3px solid rgba(93,151,54,.72);background:repeating-linear-gradient(-45deg,#d6e679 0 10px,#b9da62 10px 20px)}.flappy-actions{display:flex;justify-content:center;margin-top:15px}.flappy-help{margin:12px 0 0;color:var(--muted);text-align:center;font-size:.85rem}@media(max-width:700px){.flappy-shell{padding:14px;border-radius:20px}.flappy-header{grid-template-columns:1fr auto}.flappy-header h2{display:none}.flappy-best{justify-self:end}}.tetris-screen{display:grid;place-items:center}.tetris-shell{width:min(720px,100%);padding:22px;border:1px solid var(--border);border-radius:28px;background:var(--surface);box-shadow:0 24px 80px #00000038}.tetris-header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin-bottom:16px}.tetris-header h2{margin:0;text-align:center}.tetris-score{justify-self:end;color:var(--text);font-weight:900}.tetris-layout{display:grid;grid-template-columns:minmax(0,1fr) 140px;gap:16px;align-items:start}.tetris-main{min-width:0}.tetris-status{margin-bottom:10px;color:var(--muted);font-weight:800;text-align:center}.tetris-board{position:relative;display:grid;grid-template-columns:repeat(10,1fr);width:min(100%,360px);aspect-ratio:1 / 2;margin:0 auto;overflow:hidden;border:2px solid var(--border);border-radius:16px;background:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),#0d1320;background-size:10% 5%}.tetris-cell{min-width:0;min-height:0;border:1px solid rgba(255,255,255,.035)}.tetris-cyan,.tetris-yellow,.tetris-purple,.tetris-green,.tetris-red,.tetris-blue,.tetris-orange{box-shadow:inset 2px 2px #ffffff47,inset -2px -2px #00000038}.tetris-cyan{background:#3ddff2}.tetris-yellow{background:#f7da3a}.tetris-purple{background:#a865ef}.tetris-green{background:#5bd269}.tetris-red{background:#ee5964}.tetris-blue{background:#4f83f1}.tetris-orange{background:#f49a3e}.tetris-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;padding:20px;background:#080d18b8;color:#fff;text-align:center;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.tetris-overlay strong{font-size:clamp(1.8rem,7vw,3rem);letter-spacing:.08em}.tetris-overlay span{color:#fffc;font-weight:700}.tetris-sidebar{display:grid;gap:12px}.tetris-info-card,.tetris-next-card{padding:14px;border:1px solid var(--border);border-radius:16px;background:var(--surface-soft)}.tetris-info-card{display:flex;align-items:center;justify-content:space-between;gap:8px}.tetris-info-card span,.tetris-next-card>span{color:var(--muted);font-weight:800}.tetris-info-card strong{font-size:1.2rem}.tetris-next-card>span{display:block;margin-bottom:12px}.tetris-next-grid{display:grid;grid-template-columns:repeat(var(--next-columns),22px);grid-auto-rows:22px;justify-content:center;align-content:center;width:100%;min-height:96px;gap:2px;padding:8px;border-radius:12px;background:#00000029;box-sizing:border-box}.tetris-next-cell{width:22px;height:22px;border-radius:3px}.tetris-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:18px}.tetris-controls{display:grid;grid-template-columns:repeat(5,minmax(0,58px));justify-content:center;gap:8px;margin-top:16px}.tetris-controls button{min-width:48px;min-height:48px;border:1px solid var(--border);border-radius:14px;background:var(--surface-strong);color:var(--text);font-size:1.35rem;font-weight:900}.tetris-controls button:active{transform:translateY(1px);background:var(--accent)}.tetris-drop-button{font-size:1.5rem!important}.tetris-help{margin:14px 0 0;color:var(--muted);text-align:center;font-size:.82rem}@media(max-width:700px){.tetris-shell{padding:14px;border-radius:20px}.tetris-header{grid-template-columns:1fr auto}.tetris-header h2{display:none}.tetris-score{justify-self:end}.tetris-layout{grid-template-columns:1fr}.tetris-sidebar{grid-template-columns:repeat(3,1fr)}.tetris-next-card{min-width:0}.tetris-next-grid{max-width:76px;margin:0 auto}.tetris-board{width:min(100%,310px)}.tetris-controls{grid-template-columns:repeat(5,minmax(0,52px));gap:6px}.tetris-controls button{min-width:44px;min-height:44px}.tetris-help{display:none}}.tetris-cell.tetris-clearing{position:relative;z-index:2;animation:tetris-line-destroy .26s ease-in forwards}@keyframes 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12px;border-radius:12px;background:#ffffff21;color:#fff;font-weight:900}.classic-game-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.classic-game-card{min-width:0;min-height:126px;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:8px;padding:15px;border:1px solid var(--border);border-radius:17px;background:var(--surface-strong);color:var(--text);text-align:left;transition:transform .15s ease,border-color .15s ease,background .15s ease}.classic-game-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--accent) 60%,var(--border));background:var(--surface-soft)}.classic-game-icon{font-size:1.8rem}.classic-game-card strong{overflow:hidden;width:100%;font-size:.92rem;text-overflow:ellipsis}.classic-game-card>span:last-child{color:var(--muted);font-size:.74rem;font-weight:800}.arcade-utility-section{max-width:520px}.utility-card{width:100%;display:grid;grid-template-columns:auto minmax(0,1fr) 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#0000002e}.arcade-leaderboard-rail-header{justify-content:space-between;gap:12px;padding:17px;border-bottom:1px solid var(--border)}.arcade-leaderboard-rail-header h2,.arcade-mobile-leaderboard-header h2{margin:3px 0 0;font-size:1.15rem}.arcade-leaderboard-rail-header>button{padding:8px 10px;border:1px solid var(--border);border-radius:11px;background:var(--surface-strong);color:var(--text);font-size:.76rem;font-weight:850}.arcade-leaderboard-scroll{display:grid;gap:11px;max-height:calc(100dvh - 145px);overflow-y:auto;padding:12px;scrollbar-width:thin}.arcade-leaderboard-scroll .leaderboard-panel{flex:0 0 auto}.arcade-leaderboard-scroll .leaderboard-panel-header{padding:9px 10px 7px}.arcade-leaderboard-scroll .leaderboard-panel-title h3{font-size:.83rem}.arcade-leaderboard-scroll .leaderboard-panel-icon{width:27px;height:27px;font-size:.9rem}.arcade-leaderboard-scroll .leaderboard-list{gap:4px;padding:7px}.arcade-leaderboard-scroll .leaderboard-row{grid-template-columns:25px minmax(0,1fr) auto;min-height:29px;gap:5px;padding:3px 5px;border-radius:8px}.arcade-leaderboard-scroll .leaderboard-rank{width:23px;height:23px;font-size:.7rem}.arcade-leaderboard-scroll .leaderboard-rank-first,.arcade-leaderboard-scroll .leaderboard-rank-second,.arcade-leaderboard-scroll .leaderboard-rank-third{font-size:.9rem}.arcade-leaderboard-scroll .leaderboard-player,.arcade-leaderboard-scroll .leaderboard-score{font-size:.73rem}.arcade-leaderboard-scroll .leaderboard-empty,.arcade-leaderboard-scroll .leaderboard-loading,.arcade-leaderboard-scroll .leaderboard-error,.arcade-mobile-leaderboard-list .leaderboard-empty,.arcade-mobile-leaderboard-list .leaderboard-loading,.arcade-mobile-leaderboard-list .leaderboard-error{padding:10px 11px 12px;font-size:.76rem}.arcade-mobile-leaderboard-button,.arcade-mobile-leaderboard-overlay{display:none}.leaderboard-page-screen{width:min(1320px,100%)}.leaderboard-page-card{width:100%;padding:24px}.leaderboard-page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.leaderboard-page-header h1{margin:0;font-size:clamp(1.6rem,4vw,2.5rem)}.leaderboard-page-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}@media(max-width:1100px){.arcade-home-layout{grid-template-columns:minmax(0,1fr) minmax(260px,300px)}.featured-game-grid{grid-template-columns:1fr}.featured-game-card{min-height:220px}.classic-game-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:700px){.arcade-home-screen{padding:14px 14px 92px}.arcade-home-header{margin-bottom:14px;padding:11px 12px;border-radius:18px}.arcade-brand-mark{width:44px;height:44px;border-radius:14px}.arcade-welcome{max-width:155px;font-size:.84rem}.arcade-header-actions .arcade-header-button:first-child{display:none}.arcade-header-button{min-height:40px;padding-inline:11px;font-size:.78rem}.arcade-home-layout{display:block}.arcade-home-main{padding:18px;border-radius:22px}.arcade-section-heading{display:block}.arcade-section-heading>p{margin-top:8px;text-align:left;font-size:.86rem}.featured-game-grid{grid-template-columns:1fr;gap:10px}.featured-game-card{min-height:190px;padding:17px;border-radius:20px}.featured-game-copy strong{font-size:1.4rem}.classic-game-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.classic-game-card{min-height:112px}.arcade-utility-section{max-width:none}.arcade-leaderboard-rail{display:none}.arcade-mobile-leaderboard-button{position:fixed;z-index:50;right:16px;bottom:16px;left:16px;display:flex;align-items:center;justify-content:center;min-height:54px;border:1px solid color-mix(in srgb,var(--accent) 50%,var(--border));border-radius:17px;background:var(--accent-strong);color:#fff;box-shadow:0 18px 42px #0000004d;font-weight:900}.arcade-mobile-leaderboard-overlay{position:fixed;z-index:1100;inset:0;display:flex;align-items:flex-end;justify-content:center;padding:12px;background:#040710b8;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.arcade-mobile-leaderboard-sheet{width:min(560px,100%);max-height:86dvh;overflow:hidden;border:1px solid var(--border);border-radius:24px 24px 18px 18px;background:var(--surface);box-shadow:0 28px 90px #0000007a}.arcade-mobile-leaderboard-header{position:sticky;z-index:3;top:0;justify-content:space-between;gap:12px;padding:14px 15px;border-bottom:1px solid var(--border);background:var(--surface)}.arcade-mobile-leaderboard-header>button{width:40px;height:40px;border:1px solid var(--border);border-radius:12px;background:var(--surface-strong);color:var(--text);font-weight:900}.arcade-mobile-leaderboard-list{display:grid;gap:11px;max-height:calc(86dvh - 78px);overflow-y:auto;padding:12px}.leaderboard-page-card{padding:16px}.leaderboard-page-header{align-items:stretch;flex-direction:column}.leaderboard-page-grid{grid-template-columns:1fr}}