.header{background:#fff;border-bottom:1px solid #eaeaea;padding:1rem 0}.header .container{justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;padding:0 1rem;display:flex}.logo{margin:0;font-size:1.5rem;font-weight:600}.header nav ul{gap:1rem;margin:0;padding:0;list-style:none;display:flex}.header nav a{color:#333;border-radius:5px;padding:.5rem;font-size:1rem;text-decoration:none;transition:background-color .2s}.header nav a:hover{background-color:#f4f4f4}.header nav a.active{color:#007bff;font-weight:500}.container{text-align:center;max-width:960px;margin:2rem auto;padding:0 1rem}.api-key-form{margin-bottom:.5rem}.api-key-form input{box-sizing:border-box;border:1px solid #ccc;border-radius:5px;width:100%;padding:.75rem;font-size:1rem}.api-key-warning{color:#666;text-align:left;max-width:600px;margin:0 auto 1.5rem;font-size:.8rem}h2{margin-bottom:1.5rem}.page-description{color:#555;margin-bottom:1.5rem;font-size:1.1rem}.statement-form{flex-direction:column;gap:.75rem;max-width:600px;margin-top:1rem;margin-left:auto;margin-right:auto;display:flex}.input-container{width:100%;display:block;position:relative}.button-row{justify-content:center;align-items:center;gap:.75rem;display:flex;position:relative}.loader{border:3px solid #0000001a;border-left-color:#007bff;border-radius:50%;width:20px;height:20px;animation:1s linear infinite spin;display:none;position:absolute;top:50%;right:.75rem;transform:translateY(-50%)}@keyframes spin{to{transform:translateY(-50%)rotate(360deg)}}.statement-form.loading .loader{display:block}.statement-form input{border:1px solid #ccc;border-radius:5px;width:100%;padding:.75rem;font-size:1rem}.statement-form button{color:#fff;cursor:pointer;white-space:nowrap;background-color:#007bff;border:none;border-radius:5px;padding:.75rem 1.5rem;font-size:1rem;transition:background-color .2s}.statement-form button:hover{background-color:#0056b3}.statement-form button:disabled,.statement-form input:disabled{cursor:not-allowed;color:#6c757d;background-color:#e9ecef}.error-message{color:#d93025;text-align:center;margin-top:1rem;font-weight:700}.results{margin-top:2rem}.statement-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem;display:grid}.statement-result-card p{font-family:Georgia,serif;line-height:1.5}.container{max-width:860px;margin:0 auto;padding:2rem}.explanation-container{background-color:#fefefe;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem 2rem;box-shadow:0 4px 15px #0000000a}h2{color:#1f2937;margin-bottom:.75rem}h3{color:#111827;margin-top:1.25rem;margin-bottom:.5rem}.explanation-intro,.explanation-text,.note{color:#374151;margin-bottom:1rem;line-height:1.7}.conditional-example{color:#1e40af;background-color:#eff6ff;border-left:4px solid #3b82f6;margin:1rem 0;padding:.75rem 1rem;font-style:italic}.explanation-list{color:#1f2937;margin:.75rem 0 1rem 1.1rem;padding-left:0;list-style:none}.explanation-list li{margin-bottom:.5rem}.explanation-card-grid,.statement-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem;display:grid}.statement-result-card{background-color:#f9fafb;border:1px solid #dbeafe;border-radius:8px;padding:1rem}.statement-result-card h4{color:#1d4ed8;margin-top:0}.statement-result-card p{color:#1f2937;margin:0;line-height:1.5}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#333;background-color:#fdfdfd;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}main{padding-top:2rem}