:root{--color-bg: #ffffff;--color-bg-secondary: #f8f9fa;--color-text: #1a1a1a;--color-text-secondary: #666666;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-accent: #f59e0b;--color-border: #e5e7eb;--color-card-bg: #ffffff;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-heading: "Space Grotesk", sans-serif;--transition-fast: .2s ease;--transition-normal: .3s ease}:root.dark{--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-text: #f8fafc;--color-text-secondary: #94a3b8;--color-primary: #3b82f6;--color-primary-hover: #60a5fa;--color-accent: #fbbf24;--color-border: #334155;--color-card-bg: #1e293b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;transition:background-color var(--transition-normal),color var(--transition-normal)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2}a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}button{cursor:pointer;border:none;background:none;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.section{padding:var(--spacing-2xl) 0}.btn{display:inline-flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);border-radius:.5rem;font-weight:600;transition:all var(--transition-fast)}.btn-primary{background-color:var(--color-text);color:var(--color-bg)}.btn-primary:hover{opacity:.9;transform:translateY(-1px)}.btn-outline{border:1px solid var(--color-border);color:var(--color-text)}.btn-outline:hover{background-color:var(--color-bg-secondary)}:root.dark .btn-primary{background-color:var(--color-text);color:var(--color-bg)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .6s ease forwards}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--color-bg)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}