.tool-label {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 600;
        color: var(--text-light);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 12px;
    }
    .tool-input {
        padding: 12px 16px;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        font-size: 14px;
        background: var(--bg-light);
        color: var(--text-dark);
        transition: border-color 0.2s;
    }
    .tool-input:focus {
        outline: none;
        border-color: var(--primary-light);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }
    .tool-select {
        padding: 10px 12px;
        border: 1px solid var(--border-light);
        border-radius: 6px;
        font-size: 13px;
        background: var(--bg-white);
        color: var(--text-dark);
        cursor: pointer;
    }
    .tool-select:focus { outline: none; border-color: var(--primary-light); }
    .btn-tool {
        padding: 10px 18px;
        border: none;
        background: linear-gradient(135deg, #3b82f6, #8b5cf6);
        color: white;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        white-space: nowrap;
    }
    .btn-tool:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
    .btn-tool-outline {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--border-light);
    }
    .btn-tool-outline:hover { background: var(--bg-light); border-color: var(--primary-light); box-shadow: none; transform: none; }
    .uuid-output {
        max-height: 400px;
        overflow-y: auto;
    }
    .uuid-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 14px;
        background: var(--bg-light);
        border-radius: 6px;
        margin-bottom: 8px;
        font-family: 'SF Mono', monospace;
        font-size: 14px;
    }
    .uuid-item:last-child { margin-bottom: 0; }
    .uuid-item span { flex: 1; word-break: break-all; }
    .uuid-item button {
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        padding: 6px;
        border-radius: 4px;
        transition: all 0.2s;
    }
    .uuid-item button:hover { background: var(--bg-white); color: var(--primary); }
    .uuid-item button.copied { color: #059669; }
    .validate-result {
        padding: 12px 16px;
        border-radius: 8px;
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .validate-result.valid { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
    .validate-result.invalid { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
    .validate-result .version { background: rgba(0,0,0,0.1); padding: 2px 8px; border-radius: 4px; font-size: 12px; }
    @media (max-width: 768px) {
        .input-row { flex-direction: column; }
        .info-grid { grid-template-columns: 1fr !important; }
    }