.tl-case-converter {
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: var(--border-radius, 16px);
    padding: 24px;
    box-shadow: var(--shadow, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
}

.tl-case-converter .tl-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-family: inherit;
    font-size: 16px;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.tl-case-converter .tl-textarea:focus {
    border-color: var(--primary-color, #072d6e);
}

.tl-case-converter .tl-textarea-output {
    background: #f9fafb;
}

.tl-case-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tl-case-btn {
    padding: 10px 18px;
    border-radius: 8px;
    border: 2px solid var(--primary-color, #072d6e);
    background: transparent;
    color: var(--primary-color, #072d6e);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
}

.tl-case-btn:hover,
.tl-case-btn.active {
    background: var(--primary-color, #072d6e);
    color: #ffffff;
}

.tl-case-converter .tl-tool-actions {
    margin-top: 16px;
    display: flex;
    gap: 12px;
}

.tl-case-converter .button {
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: background 0.2s, opacity 0.2s;
    border: 1px solid #d1d5db;
    background: #f3f4f6;
    color: #111827;
}

.tl-case-converter .button:hover {
    background: #e5e7eb;
}

.tl-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
}