:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}#root{max-width:1980px;margin:0 auto;padding:2rem;text-align:center}.logo{height:6em;padding:1.5em;will-change:filter;transition:filter .3s}.logo:hover{filter:drop-shadow(0 0 2em #646cffaa)}.logo.react:hover{filter:drop-shadow(0 0 2em #61dafbaa)}@keyframes logo-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: no-preference){a:nth-of-type(2) .logo{animation:logo-spin infinite 20s linear}}.card{padding:2em}.read-the-docs{color:#888}.navbar{background:var(--bg-color, #ffffff);color:var(--text-color, #213547);display:flex;align-items:center;justify-content:space-between;padding:.75rem 2rem;height:60px;box-shadow:0 1px 3px #00000014;position:sticky;top:0;z-index:100}.navbar .logo{font-size:1.5rem;font-weight:700;height:auto;padding:0}.navbar .nav-links{list-style:none;display:flex;gap:1rem}.navbar .nav-links a{text-decoration:none;color:inherit;font-weight:500}.navbar .menu-toggle{display:none;font-size:1.5rem;cursor:pointer}@media (max-width: 768px){.navbar .nav-links{display:none}.navbar .menu-toggle{display:block}}.content{display:flex;max-width:1550px;margin:0 auto;padding:2rem 2rem 2rem 0;gap:1rem}.main-content{flex:1}.sidebar{flex:0 0 360px;background-color:#f9f9f9;padding:1rem;border-radius:8px}.ad-placeholder{height:250px;background:#e0e0e0;display:flex;align-items:center;justify-content:center;color:#888;margin:6px 0 20px}.hero{margin-bottom:3rem;padding:2rem 1rem;text-align:left}.hero h1{color:#213547;font-size:3rem;letter-spacing:.5px;line-height:1.2}.hero p{color:#555;font-size:1.125rem;margin-top:1rem;line-height:1.6}@media (prefers-color-scheme: dark){.hero h1{color:#fff}.hero p{color:#ccc}}.course-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.course-card{background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;overflow:hidden;display:flex;flex-direction:column}.course-image{width:100%;height:150px;object-fit:cover;margin:0 auto}.course-title{margin:1rem;font-size:1.25rem;color:#213547}.course-description{margin:0 1rem 1rem;color:#555;flex:1}.course-price{margin:0 1rem 1rem;font-weight:700;color:#646cff;font-size:20px}.course-button{margin:1rem;padding:.75rem 1rem;background:#646cff;color:#fff;border:none;border-radius:4px;cursor:pointer;transition:background .3s}.course-button:hover{background:#535bf2}.footer{background:#1a1a1a;color:#fff;text-align:center;padding:1rem 0;margin-top:2rem}@media (max-width: 768px){.content{flex-direction:column}.sidebar{display:none}}