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

.input-section {
    margin-bottom: 2em;
}

.ufc-textbox {
    width: 100%;
    padding: 1em;
    font-size: 1.1em;
    border: 2px solid #ddd;
    border-radius: 4px;
    transition: border-color 0.3s ease;
}

.ufc-textbox:focus {
    outline: none;
    border-color: #2271b1;
}

.output-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5em;
}

.font-output {
    background: #f8f9fa;
    padding: 1em;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.font-output h4 {
    margin: 0 0 0.5em 0;
    color: #1d2327;
}

.output-box {
    background: white;
    padding: 1em;
    min-height: 2.5em;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 0.5em;
    word-break: break-all;
}

.copy-btn {
    background: #2271b1;
    color: white;
    border: none;
    padding: 0.5em 1em;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.copy-btn:hover {
    background: #135e96;
}

.copy-btn.copied {
    background: #00a32a;
}