.calc-caida-longitud{font-family:'Arial',sans-serif;background-color:#f5f5f5;margin:20px}.calc-caida-longitud-container{max-width:400px;margin:auto;background-color:#fff;padding:20px;border-radius:8px;box-shadow:0 0 10px rgba(0,0,0,.1)}.calc-caida-longitud-title{color:#333}.calc-caida-longitud-label{display:block;margin-bottom:8px}.calc-caida-longitud-input{width:100%;padding:8px;margin-bottom:12px;box-sizing:border-box}.unidad-selector{width:100%;padding:8px;box-sizing:border-box}.calc-caida-longitud-buttons{display:flex;justify-content:space-between;align-items:center}.calc-caida-longitud-button{background-color:#0453f1;color:#fff;padding:10px;border:none;cursor:pointer;width:48%;text-transform:uppercase}.calc-caida-longitud-button:hover{background-color:#023eab}.calc-caida-longitud-result{font-weight:700;margin-top:10px;color:#333}.error-message{color:red;margin-top:10px}