:root{--primary-dark:#2c3e50;--primary-blue:#3498db;--white:#fff;--light-bg:#f9f9f9}.hero{height:60vh;color:var(--white);background-color:#0000;background-image:linear-gradient(#2c3e50cc,#2c3e50cc),url(https://images.unsplash.com/photo-1467232004584-a241de8bcf5d?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80);background-position:50%;background-repeat:repeat,repeat;background-size:cover;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;align-items:center;margin-top:70px;padding:0 5%;display:flex}.hero-content{max-width:800px}.hero h1{margin-bottom:1rem;font-size:2.5rem;line-height:1.2}.hero p{opacity:.9;margin-bottom:2rem;font-size:1.1rem}.section{padding:5rem 5%}.section-title{text-align:center;margin-bottom:3rem}.section-title h2{color:var(--primary-dark);padding-bottom:1rem;font-size:2.5rem;display:inline-block;position:relative}.section-title h2:after{content:"";background-color:var(--primary-blue);width:50%;height:3px;position:absolute;bottom:0;left:25%}.tester-container{background-color:var(--white);border-radius:10px;margin-bottom:2rem;overflow:hidden;box-shadow:0 5px 15px #0000000d}.tabs{background-color:var(--primary-dark);padding:0 15px;display:flex}.tab{color:var(--white);cursor:pointer;background:0 0;border:none;padding:12px 25px;font-weight:500;transition:all .3s;position:relative}.tab.active{color:var(--white);background-color:#ffffff1a}.tab.active:after{content:"";background-color:var(--primary-blue);width:100%;height:3px;position:absolute;bottom:0;left:0}.editor-container{border:1px solid #e0e0e0;border-top:none}.editor{display:none}.editor.active{display:block}textarea{resize:vertical;width:100%;height:300px;color:var(--primary-dark);background-color:#f8f9fa;border:none;outline:none;padding:15px;font-family:Courier New,monospace;font-size:14px}#preview{background-color:var(--white);border:1px solid #e0e0e0;border-radius:10px;width:100%;height:400px;box-shadow:0 5px 15px #0000000d}.tester-actions{justify-content:flex-end;margin-top:1rem;display:flex}.tester-actions .btn{margin-left:1rem;padding:.6rem 1.5rem}.btn{background-color:var(--primary-blue);color:var(--white);cursor:pointer;border:none;border-radius:50px;padding:.8rem 2rem;font-weight:500;text-decoration:none;transition:all .3s;display:inline-block}.btn:hover{transform:translateY(-3px);box-shadow:0 10px 20px #0000001a}.btn-outline{border:2px solid var(--primary-dark);color:var(--primary-dark);background-color:#0000}.btn-outline:hover{background-color:var(--primary-dark);color:var(--white)}@media (max-width:768px){.tabs{white-space:nowrap;overflow-x:auto}.tab{padding:12px 20px;font-size:.9rem}textarea{height:200px;font-size:13px}#preview{height:300px}}@media (max-width:480px){textarea{height:150px}#preview{height:250px}.tester-actions{flex-direction:column}.tester-actions .btn{width:100%;margin-top:.5rem;margin-left:0}}