.vda-tool-wrapper {
    max-width: 900px;
    margin: 30px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: #333;
    background: #f9fafb;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.vda-tool-header {
    text-align: center;
    margin-bottom: 20px;
}
.vda-tool-header h2 {
    color: #1e293b;
    margin-bottom: 8px;
}
.vda-tab-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}
.vda-tab-btn {
    background: #e2e8f0;
    border: none;
    padding: 10px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s;
}
.vda-tab-btn.active {
    background: #2563eb;
    color: #fff;
}
.vda-tab-content {
    display: none;
}
.vda-tab-content.active {
    display: block;
}
.vda-card {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}
.vda-card h3 {
    margin-top: 0;
    font-size: 16px;
    color: #0f172a;
}
textarea, input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 15px;
    box-sizing: border-box;
}
textarea {
    height: 120px;
    resize: vertical;
}
.vda-out-box {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}
.vda-out-box label {
    flex: 1;
    font-size: 13px;
    font-weight: 500;
}
.vda-out-box input {
    flex: 2;
    margin-bottom: 0;
    background: #f8fafc;
}
.vda-copy-btn, .vda-action-btn {
    background: #0ea5e9;
    color: white;
    border: none;
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap;
}
.vda-copy-btn:hover, .vda-action-btn:hover {
    background: #0284c7;
}
.vda-sub-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}
.vda-sub-btn {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}
.vda-sub-btn.active {
    background: #334155;
    color: #fff;
    border-color: #334155;
}
.vda-icon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(45px, 1fr));
    gap: 8px;
    max-height: 250px;
    overflow-y: auto;
    padding: 5px;
    background: #f8fafc;
    border-radius: 6px;
}
.vda-icon-item {
    font-size: 22px;
    text-align: center;
    padding: 8px;
    cursor: pointer;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    transition: transform 0.1s;
}
.vda-icon-item:hover {
    transform: scale(1.15);
    background: #e0f2fe;
}
.vda-notification {
    margin-top: 10px;
    background: #dcfce7;
    color: #166534;
    padding: 8px;
    border-radius: 4px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
}
.vda-tpl-item {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 15px;
}
.vda-tpl-item pre {
    background: #fff;
    padding: 10px;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    white-space: pre-wrap;
    font-size: 13px;
}