.math-grid-bg{background-image:repeating-linear-gradient(0deg,#3b82f614 0 1px,#0000 1px 40px),repeating-linear-gradient(90deg,#3b82f614 0 1px,#0000 1px 40px)}.dark .math-grid-bg{background-image:repeating-linear-gradient(0deg,#60a5fa0f 0 1px,#0000 1px 40px),repeating-linear-gradient(90deg,#60a5fa0f 0 1px,#0000 1px 40px)}.math-chalkboard{background:linear-gradient(135deg,#1d212b 0%,#262b36 50%,#181d25 100%)}.math-chalk-border{border:2px dashed #ffffff4d;border-radius:8px}@keyframes math-rain{0%{opacity:0;transform:translateY(-100%)}10%{opacity:1}90%{opacity:1}to{opacity:0;transform:translateY(100vh)}}.math-rain-column{animation:math-rain var(--rain-duration,8s)linear infinite;animation-delay:var(--rain-delay,0s)}@keyframes math-float{0%,to{transform:translateY(0)rotate(0)}33%{transform:translateY(-15px)rotate(5deg)}66%{transform:translateY(10px)rotate(-3deg)}}.math-float{animation:math-float var(--float-duration,6s)ease-in-out infinite;animation-delay:var(--float-delay,0s)}@keyframes math-geo-float{0%,to{transform:translateY(0)rotate(0)}50%{transform:translateY(-20px)rotate(180deg)}}.math-geo-float{animation:math-geo-float var(--geo-duration,10s)ease-in-out infinite;animation-delay:var(--geo-delay,0s)}.math-tessellation{background-image:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L60 30L30 60L0 30Z' fill='none' stroke='%233b82f620' stroke-width='1'/%3E%3C/svg%3E");background-size:60px 60px}.dark .math-tessellation{background-image:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L60 30L30 60L0 30Z' fill='none' stroke='%2360a5fa10' stroke-width='1'/%3E%3C/svg%3E")}