:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}#root{width:100%;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{padding:.75rem 1.5rem;border:none;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s;text-decoration:none;display:inline-block}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.btn-secondary{background:transparent;color:#fff;border:2px solid #fff}.btn-secondary:hover{background:#667eea;color:#fff}.card{background:#fff;border-radius:1rem;padding:2rem;box-shadow:0 10px 30px #0000001a;margin-bottom:1rem}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:#333}.form-group input,.form-group textarea,.form-group select{width:100%;padding:.75rem;border:2px solid #e1e5e9;border-radius:.5rem;font-size:1rem;transition:border-color .2s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#667eea}.navbar{background:#fff;padding:1rem 0;box-shadow:0 2px 10px #0000001a}.navbar-content{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 1rem}.navbar-brand{font-size:1.5rem;font-weight:700;color:#667eea;text-decoration:none}.navbar-nav{display:flex;list-style:none;gap:2rem}.navbar-nav a{color:#333;text-decoration:none;font-weight:500;transition:color .2s}.navbar-nav a:hover{color:#667eea}.hero{text-align:center;padding:4rem 0;color:#fff}.hero h1{font-size:3rem;margin-bottom:1rem}.hero p{font-size:1.25rem;margin-bottom:2rem;opacity:.9}.features{padding:4rem 0;background:#fff}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-top:2rem}.feature-card{text-align:center;padding:2rem;border-radius:1rem;background:#f8f9fa;transition:transform .2s;color:#242424}.feature-card:hover{transform:translateY(-5px)}.feature-icon{font-size:3rem;color:#667eea;margin-bottom:1rem}.chat-container{max-width:800px;margin:0 auto;padding:2rem}.chat-messages{height:400px;overflow-y:auto;border:2px solid #e1e5e9;border-radius:.5rem;padding:1rem;margin-bottom:1rem;background:#fff}.message{margin-bottom:1rem;padding:1rem;border-radius:.5rem}.message.user{background:#667eea;color:#fff;margin-left:2rem}.message.assistant{background:#f8f9fa;color:#333;margin-right:2rem}.chat-input{display:flex;gap:1rem}.chat-input input{flex:1}.loading{text-align:center;padding:2rem;color:#667eea}.error{background:#fee;color:#c33;padding:1rem;border-radius:.5rem;margin-bottom:1rem}.success{background:#efe;color:#363;padding:1rem;border-radius:.5rem;margin-bottom:1rem}@media (max-width: 768px){.hero h1{font-size:2rem}.navbar-nav{flex-direction:column;gap:1rem}.features-grid{grid-template-columns:1fr}}