@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Fira+Code:wght@400;500;600;700&display=swap";:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;--font-primary: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;line-height:1.6;font-weight:400;--color-primary-900: #0A0E27;--color-primary-800: #141B3C;--color-primary-700: #1E2951;--color-primary-600: #283666;--color-accent-500: #7C3AED;--color-accent-400: #8B5CF6;--color-accent-300: #A78BFA;--color-accent-200: #C4B5FD;--color-glow-cyan: #06B6D4;--color-glow-purple: #8B5CF6;--color-glow-pink: #EC4899;--color-text-primary: #F9FAFB;--color-text-secondary: #E5E7EB;--color-text-tertiary: #9CA3AF;--color-success: #10B981;--color-warning: #F59E0B;--color-error: #EF4444;--color-info: #3B82F6;--gradient-neural: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);--gradient-glow: 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a.active{color:var(--color-accent-400);font-weight:600}.header__progress{position:absolute;bottom:0;left:0;right:0;height:2px;background:#8b5cf61a;z-index:1001}.header__progress-bar{height:100%;background:var(--gradient-neural);transform-origin:left;width:0%;transition:width .1s ease}.contrast-toggle{background:var(--color-background-card);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.5rem;cursor:pointer;color:var(--color-text-primary);display:flex;align-items:center;justify-content:center;transition:all var(--transition-base);margin-left:var(--spacing-md)}.contrast-toggle:hover{background:var(--color-accent-neon);color:#fff;transform:scale(1.05);box-shadow:var(--shadow-glow)}.contrast-toggle svg{width:20px;height:20px}.hero{text-align:center;padding:120px 24px 80px;max-width:980px;margin:0 auto;position:relative;animation:fadeInUp .8s ease-out .2s both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.hero 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