.hero{text-align:center;padding:3rem 0;background:linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);border-radius:12px;margin-bottom:3rem}.hero h1{margin:0 0 1rem 0;font-size:2.5rem;color:#2c3e50}.subtitle{font-size:1.2rem;color:#7f8c8d;margin:0}.back-to-top{position:fixed;bottom:20px;right:20px;background:#667eea;color:white;border:none;border-radius:50%;width:50px;height:50px;font-size:20px;cursor:pointer;box-shadow:0 4px 12px rgba(102,126,234,0.3);opacity:0;transition:all 0.3s ease;z-index:999}.back-to-top.visible{opacity:1}.back-to-top:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(102,126,234,0.4)}@media (max-width: 992px){.content-wrapper{flex-direction:column}}@media (max-width: 768px){.hero h1{font-size:2rem}}