.qa-tools-wrap {
    --qa-bg: #f7f8fc;
    --qa-card: #ffffff;
    --qa-text: #172033;
    --qa-muted: #667085;
    --qa-border: #e4e7ec;
    --qa-primary: #635bff;
    --qa-primary-dark: #5148e5;
    --qa-success-bg: #ecfdf3;
    --qa-success-text: #027a48;
    --qa-error-bg: #fef3f2;
    --qa-error-text: #b42318;

    box-sizing: border-box;
    width: 100%;
    margin: 30px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--qa-text);
}

.qa-tools-wrap *,
.qa-tools-wrap *::before,
.qa-tools-wrap *::after {
    box-sizing: border-box;
}

.qa-tools-card {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px;
    border: 1px solid var(--qa-border);
    border-radius: 18px;
    background: var(--qa-card);
    box-shadow: 0 12px 40px rgba(16, 24, 40, 0.08);
}

.qa-tools-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 26px;
}

.qa-tools-badge {
    display: inline-block;
    margin-bottom: 8px;
    padding: 5px 9px;
    border-radius: 999px;
    background: #eeecff;
    color: #5148e5;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .08em;
}

.qa-tools-header h2 {
    margin: 0 0 7px;
    font-size: clamp(24px, 4vw, 34px);
    line-height: 1.15;
}

.qa-tools-header p {
    margin: 0;
    color: var(--qa-muted);
    font-size: 15px;
}

.qa-tools-icon {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background: #171a2b;
    color: #ffffff;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 20px;
    font-weight: 700;
}

.qa-tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.qa-tools-panel {
    min-width: 0;
    padding: 18px;
    border: 1px solid var(--qa-border);
    border-radius: 14px;
    background: var(--qa-bg);
}

.qa-tools-panel-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 750;
}

.qa-tools-textarea,
.qa-tools-result {
    width: 100%;
    min-height: 330px;
    margin: 0;
    padding: 15px;
    border: 1px solid #d0d5dd;
    border-radius: 10px;
    background: #ffffff;
    color: #101828;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    font-size: 13px;
    line-height: 1.6;
}

.qa-tools-textarea {
    resize: vertical;
    outline: none;
}

.qa-tools-textarea:focus {
    border-color: var(--qa-primary);
    box-shadow: 0 0 0 3px rgba(99, 91, 255, .12);
}

.qa-tools-result {
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.qa-tools-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 12px;
}

.qa-tools-primary,
.qa-tools-secondary,
.qa-tools-link-btn {
    border: 0;
    cursor: pointer;
    font: inherit;
}

.qa-tools-primary,
.qa-tools-secondary {
    padding: 10px 14px;
    border-radius: 9px;
    font-size: 13px;
    font-weight: 700;
}

.qa-tools-primary {
    background: var(--qa-primary);
    color: #ffffff;
}

.qa-tools-primary:hover {
    background: var(--qa-primary-dark);
}

.qa-tools-secondary {
    border: 1px solid var(--qa-border);
    background: #ffffff;
    color: var(--qa-text);
}

.qa-tools-secondary:hover {
    background: #f2f4f7;
}

.qa-tools-link-btn {
    padding: 0;
    background: transparent;
    color: var(--qa-primary);
    font-size: 12px;
    font-weight: 700;
}

.qa-tools-status {
    margin-top: 12px;
    padding: 9px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
}

.qa-tools-status-neutral {
    background: #f2f4f7;
    color: #475467;
}

.qa-tools-status-success {
    background: var(--qa-success-bg);
    color: var(--qa-success-text);
}

.qa-tools-status-error {
    background: var(--qa-error-bg);
    color: var(--qa-error-text);
}

.qa-tools-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 18px;
    color: var(--qa-muted);
    font-size: 12px;
}

@media (max-width: 760px) {
    .qa-tools-card {
        padding: 18px;
        border-radius: 14px;
    }

    .qa-tools-header {
        align-items: flex-start;
    }

    .qa-tools-icon {
        width: 54px;
        height: 54px;
    }

    .qa-tools-grid {
        grid-template-columns: 1fr;
    }

    .qa-tools-textarea,
    .qa-tools-result {
        min-height: 250px;
    }
}