.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: 6px;
    }
    .tool-textarea {
        width: 100%;
        height: 280px;
        padding: 16px;
        border: 1px solid var(--border-light);
        border-radius: 8px;
        font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
        font-size: 13px;
        line-height: 1.6;
        resize: vertical;
        background: var(--bg-light);
        color: var(--text-dark);
        transition: border-color 0.2s;
    }
    .tool-textarea:focus {
        outline: none;
        border-color: var(--primary-light);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }
    .btn-tool {
        padding: 8px 16px;
        border: none;
        background: var(--primary-light);
        color: white;
        border-radius: 6px;
        font-size: 13px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .btn-tool:hover { background: var(--primary); }
    .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); }
    .btn-copy {
        background: none;
        border: none;
        color: var(--primary-light);
        cursor: pointer;
        font-size: 12px;
        font-weight: 600;
        padding: 0;
    }
    .btn-copy:hover { color: var(--primary); }
    .tool-status {
        padding: 10px 16px;
        border-radius: 6px;
        font-size: 13px;
        margin-bottom: 12px;
        font-weight: 500;
    }
    .tool-status.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
    .tool-status.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
    .detect-badge {
        font-size: 11px;
        padding: 4px 10px;
        border-radius: 12px;
        font-weight: 600;
    }
    .detect-badge.encoded { background: #dbeafe; color: #1d4ed8; }
    .detect-badge.plain { background: #f3f4f6; color: #4b5563; }
    @media (max-width: 768px) {
        .tool-grid { grid-template-columns: 1fr !important; }
        .tool-textarea { height: 200px; }
    }