:root{--primary-color: #6c63ff;--dark-bg: #121212;--darker-bg: #0a0a0a;--light-text: #f5f5f5;--gray-text: #aaaaaa;--card-bg: #1e1e1e;--border-color: #2d2d2d;--transition: all .3s ease;--header-height: 80px}*{padding:0;margin:0;box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:var(--header-height)}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--dark-bg);color:var(--light-text);line-height:1.6;padding-top:var(--header-height)}a{text-decoration:none;color:inherit}ul{list-style:none}img{max-width:100%;height:auto;display:block}section{padding:4rem 5%;max-width:1400px;margin:0 auto}.section-title{font-size:2.5rem;margin-bottom:3rem;text-align:center;position:relative}.section-title:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:60px;height:4px;background-color:var(--primary-color);border-radius:2px}.btn{display:inline-block;background-color:var(--primary-color);color:#fff;padding:.8rem 2rem;border-radius:5px;font-weight:700;transition:var(--transition);cursor:pointer;border:none}.btn:hover{transform:translateY(-3px);box-shadow:0 5px 15px #6c63ff66}