:root{--primary: #FF6B6B;--secondary: #4ECDC4;--accent: #FFE66D;--background: #F7F7F7;--text: #2C3E50}body{margin:0;font-family:Comic Sans MS,cursive,sans-serif;background-color:var(--background);color:var(--text);line-height:1.6}.hero{background:linear-gradient(135deg,var(--primary),var(--secondary));min-height:100vh;display:flex;flex-direction:column;align-items:center;text-align:center;padding:2rem;position:relative}.title{font-size:clamp(2.5rem,5vw,4rem);color:#fff;text-shadow:3px 3px 0px var(--accent);margin-bottom:1rem;animation:bounce 2s infinite;position:relative;z-index:1}.subtitle{font-size:clamp(1.2rem,3vw,1.5rem);color:#fff;margin-bottom:2rem;position:relative;z-index:1}.math-container{display:flex;gap:1.5rem;justify-content:center;margin-top:2rem;position:relative;z-index:1;max-width:1200px;width:100%}.math-card{background:#fff;border-radius:20px;padding:1.5rem;width:calc(25% - 1.5rem);min-width:200px;text-align:center;box-shadow:0 8px 16px #0000001a;transition:transform .3s ease,box-shadow .3s ease;cursor:pointer}.math-card:hover,.math-card:focus{transform:translateY(-10px);box-shadow:0 12px 20px #00000026;outline:none}.math-card:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.math-icon{font-size:3rem;margin-bottom:1rem}.math-card h2{color:var(--text);margin:.5rem 0;font-size:1.25rem}.math-card p{color:#666;margin:1rem 0;font-size:.9rem}.coming-soon{background-color:var(--accent);color:var(--text);padding:.5rem 1rem;border-radius:20px;display:inline-block;margin-top:1rem;font-weight:700}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.floating-shapes{position:absolute;width:100%;height:100%;overflow:hidden;z-index:0;top:0;left:0}.shape{position:absolute;animation:float 15s infinite linear;opacity:.2}@keyframes float{0%{transform:translateY(100vh) rotate(0)}to{transform:translateY(-100px) rotate(360deg)}}@media (max-width: 1024px){.math-container{flex-wrap:wrap;padding:0 1rem}.math-card{width:calc(50% - 1rem)}}@media (max-width: 640px){.math-card{width:100%;max-width:300px}}@media (prefers-reduced-motion: reduce){.title,.shape{animation:none}.math-card{transition:none}}