html,body{margin:0;padding:0}.app-container{display:flex;flex-direction:column;min-height:100vh}.header{display:flex;justify-content:space-between;align-items:center;padding:0 10px;background-color:#fff;box-shadow:0 2px 4px #0000001a}.logo-container{display:flex;align-items:center}.logo{height:80px;width:auto}.language-switcher-container{display:flex;justify-content:flex-end}.loader-container{position:fixed;top:0;left:0;right:0;bottom:0;display:flex;justify-content:center;align-items:center;background-color:#ffffffe6;z-index:1000}.loader{border:4px solid #f3f3f3;border-top:4px solid #3498db;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-page{flex:1;display:flex;justify-content:center;align-items:center;padding:20px}.error-content{text-align:center;background-color:#f8d7da;color:#721c24;padding:40px 30px;border-radius:8px;border:1px solid #f5c6cb;max-width:500px}.error-content h2{margin:0 0 16px;font-size:28px;color:#721c24;font-weight:600}.error-content p{margin:0;font-size:16px;line-height:1.5}.error-content p:first-of-type{font-weight:500;margin-bottom:8px}