@layer base{:root{--tfc-background:10 10 14;--tfc-surface:20 22 32;--tfc-surface-hover:30 33 48;--tfc-border:40 44 60;--tfc-text:250 250 250;--tfc-text-muted:156 163 175;--tfc-primary:59 130 246;--tfc-primary-hover:96 165 250;--tfc-secondary:147 51 234;--tfc-accent:236 72 153;--tfc-glow:147 197 253}}@layer utilities{.bg-tfc-background{background-color:rgb(var(--tfc-background))}.bg-tfc-surface{background-color:rgb(var(--tfc-surface))}.bg-tfc-surface-hover{background-color:rgb(var(--tfc-surface-hover))}.border-tfc-border{border-color:rgb(var(--tfc-border))}.text-tfc-text{color:rgb(var(--tfc-text))}.text-tfc-text-muted{color:rgb(var(--tfc-text-muted))}.bg-tfc-primary{background-color:rgb(var(--tfc-primary))}.bg-tfc-primary-hover{background-color:rgb(var(--tfc-primary-hover))}.hide-scrollbar{-ms-overflow-style:none;scrollbar-width:none}.hide-scrollbar::-webkit-scrollbar{display:none}.content-card-shadow{box-shadow:0 0 0 1px #ffffff0a,0 2px 4px #0000003d,0 8px 16px #00000052,0 16px 32px #00000052}.content-card-shadow-hover{box-shadow:0 0 0 1px #ffffff14,0 4px 8px #00000052,0 16px 24px #0006,0 24px 48px #0000007a}.hero-text-shadow{text-shadow:0 2px 4px #00000080,0 4px 8px #0000004d,0 8px 16px #0003}.category-glow{box-shadow:inset 0 1px 0 0 #ffffff1a, 0 0 20px rgba(var(--tfc-glow), .2)}.shimmer{background:linear-gradient(90deg,#fff0 0%,#ffffff0d 50%,#fff0 100%) 0 0/200% 100%;animation:1.5s infinite shimmer}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}}.tfc-sheet-overlay{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:200;background:#0000008c;position:fixed;inset:0}.tfc-sheet{z-index:201;-webkit-backdrop-filter:saturate(180%)blur(24px);backdrop-filter:saturate(180%)blur(24px);background:#0b1226f5;border-top:1px solid #ffffff14;border-top-left-radius:24px;border-top-right-radius:24px;outline:none;flex-direction:column;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -16px 48px #0000008c}.tfc-sheet-handle{background:#ffffff40;border-radius:3px;flex-shrink:0;width:44px;height:5px;margin:10px auto 8px}.tfc-sheet-header{border-bottom:1px solid #ffffff0f;padding:4px 22px 12px}.tfc-sheet-title{letter-spacing:-.01em;color:#fff;margin:0;font-size:19px;font-weight:700}.tfc-sheet-description{color:#ffffffa6;margin:4px 0 0;font-size:13px}.tfc-sheet-body{-webkit-overflow-scrolling:touch;overscroll-behavior:contain;flex:auto;padding:18px 22px;overflow-y:auto}.tfc-pressable{will-change:transform;transition:transform .14s cubic-bezier(.32,.72,.16,1)}.tfc-pressable[data-pressed="1"]{transform:scale(.97)}@media (prefers-reduced-motion:reduce){.tfc-pressable[data-pressed="1"]{transform:none}}
.lesson-prose{max-width:70ch;color:var(--v2-text-secondary,#d1d5db);letter-spacing:-.015em;overflow-wrap:break-word;word-break:break-word;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:19px;line-height:1.75;overflow-x:auto}.lesson-prose p{margin-bottom:1.6em}.lesson-prose a{color:var(--v2-accent-primary-hover);transition:color var(--v2-duration-fast) ease;text-decoration:none}.lesson-prose a:hover{color:var(--v2-accent-primary)}.lesson-prose strong{color:var(--v2-text-primary,#f3f4f6);font-weight:600}.lesson-prose em{color:var(--v2-text-secondary,#d1d5db)}.lesson-prose blockquote{border-left:3px solid var(--v2-accent-primary,#f59e0b);color:var(--v2-text-muted,#9ca3af);letter-spacing:-.02em;margin:1.5em 0;padding-left:1.25em;font-size:21px;font-style:italic}.lesson-prose h2{color:var(--v2-text-primary,#f3f4f6);letter-spacing:-.02em;border-left:3px solid var(--v2-accent-primary,#f59e0b);margin:2.5em 0 .75em;padding-left:.75em;font-size:1.5rem;font-weight:700;line-height:1.2}.lesson-prose h3{color:var(--v2-text-primary);letter-spacing:-.02em;border-left:3px solid var(--v2-accent-primary);margin:2em 0 .75em;padding-left:.75em;font-size:24px;font-weight:700;line-height:1.2}.lesson-prose h4{color:var(--v2-text-primary);letter-spacing:-.015em;margin:1.5em 0 .5em;font-size:20px;font-weight:600}.lesson-prose ul,.lesson-prose ol{margin:1em 0;padding-left:1.5em}.lesson-prose li{margin-bottom:.5em}.lesson-prose img{border:1px solid var(--v2-border-subtle);border-radius:20px;max-width:100%;margin:2em 0;box-shadow:0 10px 30px -10px #00000080}.lesson-prose hr{border:none;border-top:1px solid var(--v2-border-subtle);margin:2.5em 0}.lesson-prose figcaption{color:var(--v2-text-muted);text-align:center;margin-top:.5em;font-size:.875rem}.lesson-prose-dropcap>p:first-of-type:first-letter{float:left;color:var(--v2-accent-primary);margin-top:.05em;margin-right:.1em;font-size:3.2em;font-weight:700;line-height:.8}