:root{--primary: #C00000;--primary-dark: #990000;--secondary: #0F1115;--bg-light: #F8F9FA;--bg-card: #FFFFFF;--text-main: #1A1D23;--text-muted: #4B5563;--border-light: #E9ECEF;--accent-steel: #D1D5DB;--transition-fast: all .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: all .6s cubic-bezier(.4, 0, .2, 1);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 10px 30px rgba(0, 0, 0, .08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background-color:var(--bg-light);color:var(--text-main);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:Outfit,sans-serif;font-weight:800;text-transform:uppercase;letter-spacing:-.02em}.container{max-width:1400px;margin:0 auto;padding:0 40px}section{padding:120px 0}.gradient-text{background:linear-gradient(135deg,var(--text-main) 0%,#444 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.sub-header{color:var(--primary);font-weight:700;font-size:.9rem;letter-spacing:3px;margin-bottom:15px;display:block}.btn-engineering{background:var(--primary-dark);color:#fff;padding:16px 36px;border:none;font-weight:700;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:var(--transition-fast);display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:.85rem}.btn-engineering:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 10px 20px #c003}.card-professional{background:var(--bg-card);border:1px solid var(--border-light);padding:40px;transition:var(--transition-fast);position:relative;overflow:hidden}.card-professional:hover{border-color:var(--primary);transform:translateY(-8px);box-shadow:var(--shadow-md)}.card-professional:after{content:"";position:absolute;top:0;right:0;width:4px;height:0;background:var(--primary);transition:var(--transition-fast)}.card-professional:hover:after{height:100%}.specs-table{width:100%;margin-top:20px;font-size:.85rem;border-collapse:collapse}.specs-table tr{border-bottom:1px solid var(--border-light)}.specs-table td{padding:10px 0}.specs-table td:first-child{color:var(--text-muted);font-weight:500;width:60%}.specs-table td:last-child{color:var(--text-main);font-weight:700;text-align:right}.reveal{opacity:0;transform:translateY(30px);transition:var(--transition-slow)}.reveal.active{opacity:1;transform:translateY(0)}.dark-section{background-color:var(--secondary);color:#fff}.dark-section .gradient-text{background:linear-gradient(135deg,#fff,#aaa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.dark-section .card-professional{background:#1a1d23;border-color:#2d3139}@media(max-width:768px){.container{padding:0 20px}section{padding:80px 0}h1{font-size:2.5rem}}