*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;display:flex;align-items:center;justify-content:center}#app{width:100%;max-width:600px;padding:20px}.container{background:#fff;border-radius:20px;padding:20px 10px;box-shadow:0 20px 40px #0000001a;text-align:center}.title{font-size:2.5rem;color:#333;margin-bottom:30px;font-weight:700}.input-section{margin-bottom:20px}.input-label{font-size:1.2rem;color:#555;margin-bottom:15px;display:block}.number-inputs{display:flex;justify-content:center;gap:15px;margin-bottom:20px}.number-input{width:60px;height:60px;font-size:1.5rem;text-align:center;border:2px solid #ddd;border-radius:10px;outline:none;transition:all .3s ease;display:flex;align-items:center;justify-content:center;font-weight:700;color:#333}.number-input:focus{border-color:#667eea;box-shadow:0 0 10px #667eea4d}.calculate-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:12px 40px;font-size:1.1rem;border-radius:25px;cursor:pointer;transition:transform .2s ease}.calculate-btn:hover{transform:translateY(-2px)}.calculate-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.results-section{margin-top:0}.results-title{font-size:1.3rem;color:#333;margin-bottom:10px}.results-list,.result-item,.similar-results,.similar-item,.main-result,.expression{text-align:left}.results-list{max-height:300px;overflow-y:auto;background:#f8f9fa;border-radius:10px;padding:10px}.result-group{margin-bottom:8px}.result-item{background:#fff;margin:4px 0;padding:10px 15px;border-radius:8px;border-left:4px solid #667eea;font-family:Courier New,monospace;font-size:1rem}.main-result{cursor:pointer;transition:all .2s ease;display:flex;justify-content:space-between;align-items:center}.main-result:hover{background:#f8f9fa;transform:translate(2px)}.expression{flex:1}.toggle-btn{color:#667eea;font-size:.6rem;font-weight:400;margin-left:4px}.similar-results{margin-left:20px;border-left:2px solid #e9ecef;padding-left:10px}.similar-item{background:#f8f9fa;border-left-color:#adb5bd;font-size:.9rem;opacity:.8}.no-results{color:#888;font-style:italic;padding:20px}.loading{color:#667eea;font-size:1.1rem}