body{background-color:#fff;color-scheme:light dark;font-family:sans-serif;font-size:1.1rem}h3{text-decoration:underline}button{background-color:#183b52;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer;text-decoration:none;transition:background-color .3s;font-size:1.1rem}button:hover{background-color:#2c6891}button:disabled{background-color:#9e9fa0;cursor:not-allowed}.file-selector{display:flex;align-items:center;gap:10px}select{background-color:#183b52;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer;text-decoration:none;transition:background-color .3s;font-size:1.1rem}select:hover{background-color:#2c6891}select:disabled{background-color:#9e9fa0;cursor:not-allowed}.selector-btn{background-color:#183b52;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer;text-decoration:none;transition:background-color .3s;font-size:1.1rem}input[type=file]{padding:1rem;font-size:1.1rem;background-color:#f3f3f3;border:2px dashed #ccc;border-radius:8px;cursor:pointer;width:100%;box-sizing:border-box;transition:border .3s ease}input[type=file]:hover{border-color:#999}