:root{--background:#f8fafc;--foreground:#0f172a;--card-bg:#fffffff2;--card-border:#0000001a;--accent-glow:#a855f74d}.dark{--background:#0a0a0f;--foreground:#ededed;--card-bg:#1a1a2ecc;--card-border:#ffffff1a;--accent-glow:#a855f780}:root,:host{--font-sans:"Nunito", system-ui, sans-serif}body.heap-mega{background:var(--background);color:var(--foreground);font-family:var(--font-sans);scrollbar-width:thin;scrollbar-color:#4a4a6a #1a1a2e}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#1a1a2e}::-webkit-scrollbar-thumb{background:#4a4a6a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#6a6a8a}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 20px #a855f766}50%{box-shadow:0 0 40px #a855f7cc}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.animate-float{animation:3s ease-in-out infinite float}.animate-pulse-glow{animation:2s ease-in-out infinite pulse-glow}.animate-shimmer{background:linear-gradient(90deg,#0000,#ffffff1a,#0000) 0 0/200% 100%;animation:2s infinite shimmer}.bg-grid-pattern{background-image:linear-gradient(#00000008 1px,#0000 1px),linear-gradient(90deg,#00000008 1px,#0000 1px);background-size:50px 50px}.dark .bg-grid-pattern{background-image:linear-gradient(#ffffff08 1px,#0000 1px),linear-gradient(90deg,#ffffff08 1px,#0000 1px);background-size:50px 50px}.bg-radial-glow{background:radial-gradient(#a855f714 0%,#0000 70%)}.dark .bg-radial-glow{background:radial-gradient(#a855f726 0%,#0000 70%)}.glass{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffc;border:1px solid #0000001a}.dark .glass{background:#ffffff0d;border:1px solid #ffffff1a}.gradient-text{color:#0000;-webkit-text-fill-color:transparent;background:linear-gradient(135deg,#a855f7 0%,#ec4899 50%,#f97316 100%);-webkit-background-clip:text;background-clip:text}.level-1-bg{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%)}.level-2-bg{background:linear-gradient(135deg,#1a1a2e 0%,#2d132c 50%,#801336 100%)}.level-3-bg{background:linear-gradient(135deg,#1a1a2e 0%,#0c2d4e 50%,#0f4c75 100%)}.level-4-bg{background:linear-gradient(135deg,#1a1a2e 0%,#1e3a2f 50%,#2d5a4a 100%)}.heap-node{transition:all .3s}.heap-node:hover{filter:brightness(1.2);transform:scale(1.1)}.btn-glow:hover{box-shadow:0 0 30px #a855f780}input:focus,select:focus,textarea:focus{outline:none;box-shadow:0 0 0 3px #a855f74d}::selection{color:#fafafa;background:#4c1d958c}.spinner{border:3px solid #ffffff1a;border-top-color:#a855f7;border-radius:50%;animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.card-hover{transition:all .3s}.card-hover:hover{transform:translateY(-5px);box-shadow:0 20px 40px #0000004d}.neon-text{text-shadow:0 0 5px,0 0 10px,0 0 20px,0 0 40px}.particles{pointer-events:none;z-index:0;width:100%;height:100%;position:fixed;top:0;left:0;overflow:hidden}.particle{background:#a855f780;border-radius:50%;width:4px;height:4px;animation:15s infinite particle-float;position:absolute}@keyframes particle-float{0%,to{opacity:0;transform:translateY(100vh)rotate(0)}10%{opacity:1}90%{opacity:1}to{opacity:0;transform:translateY(-10vh)rotate(720deg)}}