.converter-wrapper {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.converter-container {
    background: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

input[type="number"],
select {
    flex: 1;
    min-width: 200px;
    padding: 0.8rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    text-align-last: center;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23007CB2%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 0.7rem top 50%;
    background-size: 0.65rem auto;
    padding-right: 2rem;
}

select::-ms-expand {
    display: none;
}

select option {
    text-align: center;
    padding: 0.5rem;
}

input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: #4299e1;
}

button {
    width: 100%;
    padding: 1rem;
    background-color: #4299e1;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #3182ce;
}

.result-container {
    margin-top: 2rem;
    text-align: center;
}

.result-box {
    background-color: #f7fafc;
    padding: 1.5rem;
    border-radius: 6px;
    border: 2px solid #e2e8f0;
}

.result-box h3 {
    margin: 0;
    color: #4a5568;
    font-size: 1.2rem;
}

#resultPixels {
    font-size: 1.5rem;
    color: #2d3748;
    margin: 0.5rem 0;
    font-weight: bold;
}

.info-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid #e2e8f0;
}

.info-section h3 {
    color: #2d3748;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.info-section ul {
    list-style-type: none;
    padding: 0;
}

.info-section li {
    margin-bottom: 0.5rem;
    color: #4a5568;
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
    .converter-wrapper {
        margin: 1rem;
        padding: 0;
    }

    .converter-container {
        padding: 1.5rem;
    }

    .input-group {
        flex-direction: column;
        gap: 0.8rem;
    }

    input[type="number"],
    select {
        width: 100%;
        min-width: unset;
    }

    h2 {
        font-size: 1.5rem;
    }
}