body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #0d1117;
    color: #c9d1d9;
}

.container {
    text-align: center;
    background: #161b22;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8);
    width: 90%;
    max-width: 400px;
}

h1 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: #f0f6fc;
}

.converter {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #f0f6fc;
}

input {
    width: calc(100% - 10px);
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #30363d;
    border-radius: 4px;
    font-size: 1rem;
    background-color: #0d1117;
    color: #c9d1d9;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus {
    outline: none;
    border-color: #58a6ff;
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
}

button {
    width: 100%;
    padding: 10px;
    background-color: #238636;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
}

button:hover {
    background-color: #2ea043;
    box-shadow: 0 0 20px rgba(35, 134, 54, 0.3);
}