:root{--primary-color: #007bff;--primary-color-darker: #0056b3;--primary-color-light-background: #e6f2ff;--secondary-color: #f8f9fa;--text-color: #343a40;--light-gray: #e9ecef;--white: #ffffff;--font-family: "Poppins", sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-family);background-color:var(--white);color:var(--text-color);line-height:1.6}.container{max-width:1100px;margin:0 auto;padding:4rem 2rem}h1,h2,h3{font-weight:600;line-height:1.2;margin-bottom:1rem}h1{font-size:2.8rem}h2{font-size:2.2rem;color:var(--primary-color)}h3{font-size:1.5rem}a{color:var(--primary-color);text-decoration:none;transition:color .3s ease}a:hover{color:var(--primary-color-darker)}.btn{display:inline-block;padding:12px 24px;background-color:var(--primary-color);color:var(--white);border-radius:5px;font-weight:600;text-align:center;border:none;cursor:pointer;transition:background-color .3s ease,transform .2s ease}.btn:hover{background-color:var(--primary-color-darker);transform:translateY(-2px)}