.sidebar{width:250px;background-color:#2c3e50;color:#fff;height:100vh;position:fixed;top:0;left:0;display:flex;flex-direction:column;padding:20px 0;box-shadow:2px 0 5px #0000001a;transition:width .3s ease;z-index:1000}.sidebar.collapsed{width:70px}.sidebar.collapsed .logo-text,.sidebar.collapsed .nav-text{display:none}.sidebar.collapsed .logo-img{width:40px;margin:0 auto}.sidebar.collapsed .logo{padding:0;justify-content:center}.sidebar.collapsed nav li a{justify-content:center;padding:15px 0}.sidebar.collapsed nav li a i{font-size:1.2rem;margin:0}.sidebar-header{position:relative}.toggle-btn{position:absolute;top:50%;right:-15px;transform:translateY(-50%);background:#34495e;border:2px solid #2c3e50;color:#fff;border-radius:50%;width:30px;height:30px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:14px;box-shadow:0 0 10px #0000004d;z-index:1001;transition:all .3s ease}.toggle-btn:hover{background:#3498db;transform:translateY(-50%) scale(1.1)}.sidebar.collapsed .toggle-btn{right:-15px}.logo{padding:0 20px 10px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:10px;display:flex;flex-direction:column;align-items:center;overflow:hidden}.logo-img{max-width:140px;height:auto;margin-bottom:10px;transition:all .3s}.logo h2{margin:0;font-size:1.2rem;color:#ecf0f1;white-space:nowrap}nav ul{list-style:none;padding:0;margin:0}nav li a{display:block;padding:15px 20px;color:#bdc3c7;text-decoration:none;transition:all .3s ease;display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden}nav li a:hover{background-color:#34495e;color:#fff}nav li a.active{background-color:#3498db;color:#fff;border-right:4px solid #2980b9}.hamburger-btn{display:none;position:fixed;top:15px;right:15px;z-index:1002;background:#2c3e50;border:none;color:#fff;width:44px;height:44px;border-radius:8px;cursor:pointer;font-size:1.5rem;box-shadow:0 2px 10px #0000004d;transition:all .3s ease}.hamburger-btn:hover{background:#34495e;transform:scale(1.05)}.hamburger-btn:active{transform:scale(.95)}.mobile-backdrop{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;z-index:999;opacity:0;pointer-events:none;transition:opacity .3s ease}.mobile-backdrop.active{opacity:1;pointer-events:auto}@media (max-width: 767px){.sidebar{transform:translate(-100%);transition:transform .3s ease;z-index:1000}.sidebar.mobile-open{transform:translate(0)}.hamburger-btn{display:flex;align-items:center;justify-content:center}.mobile-backdrop{display:block}.toggle-btn{display:none}.sidebar{width:280px;max-width:85vw}nav li a{padding:18px 20px;font-size:1.05rem}nav li a i{font-size:1.3rem}body.mobile-menu-open{overflow:hidden}}@media (min-width: 768px) and (max-width: 1024px){.sidebar{width:220px}.sidebar.collapsed{width:70px}.content-area{margin-left:220px;width:calc(100% - 220px)}:global(body.sidebar-collapsed) .content-area{margin-left:70px;width:calc(100% - 70px)}}.main-footer{text-align:center;padding:20px;margin-top:auto;color:#7f8c8d;font-size:.9rem;border-top:1px solid #e0e0e0;background-color:#fff}.social-links{display:flex;justify-content:center;gap:15px;margin-bottom:15px}.social-links a{color:#3498db;font-size:1.2rem;transition:all .3s ease;display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background-color:#ecf0f1}.social-links a:hover{color:#fff;background-color:#2c3e50;transform:translateY(-3px)}.main-footer strong{color:#2c3e50}.main-footer strong a{color:inherit;text-decoration:none;transition:color .2s ease}.main-footer strong a:hover{color:#3498db}@media (max-width: 767px){.main-footer{padding:15px 10px;font-size:.85rem}.social-links{gap:12px;margin-bottom:12px}.social-links a{font-size:1.1rem;width:36px;height:36px}}@media (min-width: 768px) and (max-width: 1024px){.main-footer{padding:18px 15px}}*{box-sizing:border-box}body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f7f7f7}main{max-width:800px;margin:0 auto;padding:20px;background-color:#fff;border-radius:8px;box-shadow:0 0 10px #0000001a}h1{text-align:center;color:#333}.form{display:grid;gap:15px;margin-bottom:20px}.form label{font-weight:700;margin-bottom:5px}.form input{padding:10px;font-size:16px;border:1px solid #ddd;border-radius:4px;width:100%}.form button{padding:10px 20px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:16px}.form button:hover{background-color:#0056b3}.preview{padding:20px;background-color:#f1f1f1;border:1px solid #ddd;border-radius:8px}.preview p{margin:5px 0}#preview-socials{margin-top:10px}#preview-socials a{text-decoration:none;color:#007bff}#preview-socials a:hover{text-decoration:underline}#html-output{padding:20px;background-color:#f9f9f9;border:1px solid #ddd;border-radius:8px;margin-top:20px}pre{white-space:pre-wrap;word-wrap:break-word;background-color:#282c34;color:#f1f1f1;padding:15px;border-radius:4px;font-family:Consolas,monaco,monospace}@media (max-width: 767px){main{padding:15px;margin:0;border-radius:0}h1{font-size:1.5rem;margin-bottom:15px}.form{gap:12px}.form input,.form button{font-size:16px;min-height:44px}.form button{padding:12px 20px}pre{padding:10px;font-size:.85rem}}@media (min-width: 768px) and (max-width: 1024px){main{max-width:700px;padding:18px}h1{font-size:1.75rem}}.app-container{display:flex;min-height:100vh}.content-area{margin-left:250px;width:calc(100% - 250px);background-color:#f7f7f7;display:flex;flex-direction:column;transition:margin-left .3s ease,width .3s ease}:global(body.sidebar-collapsed) .content-area{margin-left:70px;width:calc(100% - 70px)}.content-wrapper{flex:1;padding:20px}@media (max-width: 767px){.content-area{margin-left:0;width:100%}:global(body.sidebar-collapsed) .content-area{margin-left:0;width:100%}.content-wrapper{padding:70px 15px 15px}}@media (min-width: 768px) and (max-width: 1024px){.content-area{margin-left:220px;width:calc(100% - 220px)}:global(body.sidebar-collapsed) .content-area{margin-left:70px;width:calc(100% - 70px)}}