:root{--color-primary: #6366f1;--color-primary-dark: #4f46e5;--color-secondary: #0ea5e9;--color-background: #0f172a;--color-surface: #1e293b;--color-text: #f8fafc;--color-text-muted: #94a3b8;--font-sans: "Inter", system-ui, sans-serif;--font-mono: "Fira Code", monospace;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 2rem;--space-xl: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: 1rem;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .5);--transition-fast: .15s ease;--transition-normal: .3s ease}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--color-background);color:var(--color-text);line-height:1.6;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-md)}.text-center{text-align:center}.text-muted{color:var(--color-text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-md);font-weight:500;cursor:pointer;transition:all var(--transition-fast);border:none}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-1px)}.app{display:flex;flex-direction:column;min-height:100vh}.app main{flex:1}.header{position:sticky;top:0;background:#0f172ae6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1);z-index:100}.header__inner{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-md)}.header__logo{font-size:1.5rem;font-weight:700;color:var(--color-text);text-decoration:none}.header__nav{display:flex;gap:var(--space-lg)}.header__nav a{color:var(--color-text-muted);text-decoration:none;transition:color var(--transition-fast)}.header__nav a:hover{color:var(--color-text)}.footer{padding:var(--space-lg) 0;border-top:1px solid rgba(255,255,255,.1)}.footer__inner{text-align:center;color:var(--color-text-muted)}.hero{padding:var(--space-xl) 0;text-align:center}.hero__inner{max-width:800px}.hero__title{font-size:3rem;font-weight:700;margin-bottom:var(--space-md)}.hero__subtitle{font-size:1.25rem;margin-bottom:var(--space-lg)}.hero__actions{display:flex;gap:var(--space-md);justify-content:center}