:root{--color-primary: #2563eb;--color-primary-dark: #1e40af;--color-secondary: #0f172a;--color-accent: #f59e0b;--color-background: #ffffff;--color-surface: #f8fafc;--color-text: #334155;--color-text-heading: #0f172a;--color-border: #e2e8f0;--gradient-rainbow: linear-gradient(to right, #ef4444, #f97316, #eab308, #22c55e, #3b82f6, #a855f7, #ec4899);--font-sans: "Inter", system-ui, -apple-system, sans-serif;--font-serif: "Merriweather", serif;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 4rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1)}@media(prefers-color-scheme:dark){:root{--color-background: #0f172a;--color-surface: #1e293b;--color-text: #cbd5e1;--color-text-heading: #f8fafc;--color-border: #334155}}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-background);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{color:var(--color-text-heading);line-height:1.2;margin-bottom:var(--spacing-sm)}a{color:var(--color-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--color-primary-dark)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.btn{display:inline-block;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s;border:none}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-dark);transform:translateY(-1px)}.text-center{text-align:center}.mt-lg{margin-top:var(--spacing-lg)}.mb-lg{margin-bottom:var(--spacing-lg)}