:root{--color-black:#000;--color-white:#fff;--color-gray-light:#f5f5f5;--color-gray:#e5e5e5;--color-gray-medium:#ccc;--color-gray-dark:#666;--font-primary:-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Oxygen","Ubuntu","Cantarell","Fira Sans","Droid Sans","Helvetica Neue",sans-serif;--font-mono:"SF Mono",Monaco,"Cascadia Code","Roboto Mono",Consolas,"Courier New",monospace;--spacing-xs:0.5rem;--spacing-sm:1rem;--spacing-md:2rem;--spacing-lg:4rem;--spacing-xl:6rem;--spacing-2xl:8rem;--breakpoint-sm:640px;--breakpoint-md:768px;--breakpoint-lg:1024px;--breakpoint-xl:1280px;--transition-fast:0.2s ease;--transition-base:0.3s ease;--transition-slow:0.6s ease;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body,html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-primary);color:var(--color-black);background-color:var(--color-gray-light);line-height:1.6;overflow-x:hidden}body,h1,h2,h3,h4,h5,h6{letter-spacing:normal;word-spacing:normal}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2}h1{font-size:clamp(2.5rem,8vw,6rem);font-weight:800}h2{font-size:clamp(2rem,5vw,4rem)}h3{font-size:clamp(1.5rem,4vw,2.5rem)}p{font-size:clamp(1rem,2vw,1.125rem);line-height:1.7;color:var(--color-gray-dark)}a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-black)}button{font-family:inherit;cursor:pointer;border:none;outline:none;transition:all var(--transition-base)}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--spacing-md)}.section{padding:var(--spacing-xl) 0;position:relative}.section-full{min-height:100vh;display:flex;align-items:center}.fade-in-up{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}.fade-in-up.visible{opacity:1;transform:translateY(0)}.loading{opacity:.5;pointer-events:none}@media (max-width:768px){.container{padding:0 var(--spacing-sm)}.section{padding:var(--spacing-lg) 0}}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--color-white)}::-webkit-scrollbar-thumb{background:var(--color-gray-dark);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--color-black)}