body.ccc-dark{background-color:#121212;color:#e0e0e0}body.ccc-dark select,body.ccc-dark input,body.ccc-dark #ccc-result{background-color:#1e1e1e;color:#e0e0e0;border-color:#333}.ccc-container{font-family:'Segoe UI',sans-serif;padding:1rem;max-width:800px;margin:auto;background:#fff;border-radius:10px;box-shadow:0 0 20px rgba(0,0,0,.1)}body.ccc-dark .ccc-container{background-color:#1e1e1e}.ccc-box{display:flex;flex-direction:column;gap:1rem}#ccc-result{font-weight:700;font-size:1.2rem;margin-top:1rem}select,input{padding:.5rem;font-size:1rem;border-radius:6px;border:1px solid #ccc}