:root{--primary: #2563eb;--primary-dark: #1d4ed8;--secondary: #f59e0b;--dark: #0f172a;--gray: #64748b;--light: #f8fafc;--glass: rgba(255, 255, 255, .95);--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;line-height:1.6;color:var(--dark);background:var(--light);overflow-x:hidden}.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#0f172af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.1);transition:all .3s ease}.header-top{background:linear-gradient(90deg,var(--primary) 0%,var(--primary-dark) 100%);padding:8px 0;font-size:14px;color:#fff;text-align:center}.header-main{padding:12px 0;margin:0;border-bottom:none}.header{border-bottom:none;transition:box-shadow .2s ease}.header--scrolled{box-shadow:0 4px 20px 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