.rtg-tool {
    --rtg-ink: var(--mt-color__heading, #1d2128);
    --rtg-muted: #697386;
    --rtg-border: #e0e6ee;
    --rtg-soft: #f7f9fc;
    --rtg-blue: var(--primary-color, var(--blue-text, #4166e1));
    --rtg-blue-soft: var(--blue-bg, rgba(65, 102, 225, 0.06));
    --rtg-orange: var(--orange, #f97248);
    --rtg-red: var(--notification-error, #ea4854);
    --rtg-green: var(--notification-success, #27ae68);
    --rtg-radius: var(--mt-border__radius, 2px);
    width: 100%;
    max-width: 100%;
    margin: 0 0 24px;
    color: var(--rtg-ink);
    font-family: var(--mt-font__main, inherit);
    line-height: 1.45;
}

.rtg-tool *,
.rtg-tool *::before,
.rtg-tool *::after {
    box-sizing: border-box;
}

.rtg-tool .hide {
    display: none !important;
}

.rtg-tool .screen-reader-text {
    position: absolute !important;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.rtg-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: 20px;
    align-items: start;
}

.rtg-panel {
    border: 1px solid var(--rtg-border);
    border-radius: var(--rtg-radius);
    background: #fff;
}

.rtg-input-panel {
    padding: 22px;
}

.rtg-output-panel {
    position: sticky;
    top: 88px;
    display: flex;
    flex-direction: column;
    min-height: 420px;
    padding: 22px;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 8px 24px rgba(32, 40, 58, 0.06);
    scroll-margin-top: 24px;
}

.rtg-section-heading {
    margin-bottom: 18px;
}

.rtg-section-heading .rtg-heading {
    align-items: flex-start;
}

.rtg-section-heading .rtg-heading__icon {
    margin-top: 2px;
}

.rtg-section-heading h2 {
    margin: 0;
    color: var(--rtg-ink);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.3;
}

.rtg-section-heading p {
    margin: 4px 0 0;
    color: var(--rtg-muted);
    font-size: 12px;
    font-weight: 500;
}

.rtg-block {
    margin-bottom: 16px;
    padding: 14px;
    border: 1px solid var(--rtg-border);
    border-radius: var(--rtg-radius);
    background: #fff;
}

.rtg-block-title {
    margin: 0 0 12px;
    color: var(--rtg-ink);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.rtg-fields {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rtg-field-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.rtg-field-row--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rtg-field > label {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    margin: 0 0 6px;
    color: var(--rtg-ink);
    font-size: 12px;
}

.rtg-field > label span {
    color: var(--rtg-muted);
    font-size: 11px;
    font-weight: 500;
}

.rtg-tool select,
.rtg-tool input[type="text"],
.rtg-tool input[type="url"] {
    width: 100%;
    height: auto;
    min-height: 42px;
    margin: 0;
    padding: 8px 11px;
    border: 1px solid #d3dbe5;
    border-radius: var(--rtg-radius);
    color: var(--rtg-ink);
    box-shadow: none;
}

.rtg-tool select:hover,
.rtg-tool input[type="text"]:hover,
.rtg-tool input[type="url"]:hover {
    border-color: #c0cad8;
}

.rtg-tool select:focus,
.rtg-tool input[type="text"]:focus,
.rtg-tool input[type="url"]:focus {
    outline: none;
    border-color: var(--rtg-blue);
    box-shadow: 0 0 0 3px rgba(65, 102, 225, 0.12);
}

.rtg-hint {
    margin: 0 0 10px;
    color: var(--rtg-muted);
    font-size: 11px;
}

.rtg-advanced {
    padding: 0;
    overflow: hidden;
}

.rtg-advanced-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px;
    list-style: none;
    cursor: pointer;
    user-select: none;
}

.rtg-advanced-summary::-webkit-details-marker {
    display: none;
}

.rtg-advanced-summary__text {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 2px;
}

.rtg-advanced-summary__text strong {
    color: var(--rtg-ink);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.rtg-advanced-summary__text span {
    color: var(--rtg-muted);
    font-size: 11px;
}

.rtg-advanced-summary__icon {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--rtg-border);
    border-radius: var(--rtg-radius);
    background: var(--rtg-soft);
    color: var(--rtg-blue);
    font-size: 11px;
    transition: transform 0.15s ease, background 0.15s ease;
}

.rtg-advanced[open] .rtg-advanced-summary__icon {
    background: var(--rtg-blue-soft);
    transform: rotate(180deg);
}

.rtg-advanced-summary:hover {
    background: #fbfcfe;
}

.rtg-advanced-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 14px 14px;
    border-top: 1px solid var(--rtg-border);
    background: #fbfcfe;
}

.rtg-advanced-body .rtg-field-row {
    padding-top: 10px;
}

.rtg-dir-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.rtg-dir-row:last-child {
    margin-bottom: 0;
}

.rtg-dir-row .rtg-dir-input {
    flex: 1;
    min-width: 0;
}

.rtg-icon-btn {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    min-width: auto;
    margin: 0;
    padding: 0;
    border: 1px solid var(--rtg-border);
    border-radius: var(--rtg-radius);
    background: #fff;
    color: var(--rtg-blue);
    font-size: 0.95rem;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.rtg-icon-btn:hover {
    border-color: var(--rtg-blue);
    background: var(--rtg-blue-soft);
    color: var(--rtg-blue);
}

.rtg-icon-btn--remove {
    color: var(--rtg-red);
}

.rtg-icon-btn--remove:hover {
    border-color: var(--rtg-red);
    background: var(--notification-error-bg, rgba(242, 24, 80, 0.08));
    color: var(--rtg-red);
}

.rtg-actions {
    text-align: center;
}

/* —— Output panel (screenshot design) —— */
.rtg-output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.rtg-heading {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.rtg-heading__icon {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    line-height: 1;
}

.rtg-output-title {
    margin: 0;
    color: var(--rtg-ink);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.3;
}

.rtg-result-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    justify-content: flex-end;
}

.rtg-action-btn {
    min-width: auto;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin: 0;
    padding: 7px 8px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: #fff;
    color: var(--rtg-blue);
    font-size: 11px;
    line-height: 1;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease, filter 0.15s ease;
}

.rtg-action-btn:focus {
    background-color: transparent;
}

.rtg-action-btn--secondary {
    border-color: #c9d6f5;
    color: var(--rtg-blue);
    background: #fff;
}

.rtg-action-btn--secondary:hover {
    border-color: var(--rtg-blue);
    background: var(--rtg-blue-soft);
    color: var(--rtg-blue);
}

.rtg-action-btn--primary {
    border-color: var(--rtg-orange);
    background: var(--rtg-orange);
    color: #fff;
}

.rtg-action-btn--primary:hover {
    filter: brightness(0.96);
    color: #fff;
    background: var(--rtg-orange);
}

.rtg-action-btn.is-success {
    border-color: transparent;
    color: var(--rtg-green);
    background: var(--notification-success-bg, rgba(19, 188, 150, 0.08));
}

.rtg-button-icon {
    color: inherit;
    font-size: 0.9rem;
}

.rtg-empty {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 280px;
    padding: 28px 20px;
    border: 1px dashed #d3dbe5;
    border-radius: 8px;
    background: #f8fafc;
    text-align: center;
}

.rtg-empty-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 6px;
    border-radius: 50%;
    background: rgba(249, 114, 72, 0.1);
    color: var(--rtg-orange);
    font-size: 1.15rem;
}

.rtg-empty strong {
    color: var(--rtg-ink);
    font-size: 14px;
    font-weight: 700;
}

.rtg-empty p {
    margin: 0;
    max-width: 260px;
    color: var(--rtg-muted);
    font-size: 12px;
}

.rtg-editor {
    display: flex;
    flex: 1;
    min-height: 0;
}

.rtg-editor-frame {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    flex: 1;
    width: 100%;
    min-height: 320px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #f8fafc;
}

.rtg-line-numbers {
    min-width: 42px;
    padding: 14px 10px;
    border-right: 1px solid #e2e8f0;
    background: #f1f5f9;
    color: #94a3b8;
    font: 13px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    text-align: right;
    user-select: none;
    overflow: hidden;
}

.rtg-line-numbers span {
    display: block;
}

.rtg-code-output {
    width: 100%;
    min-height: 320px;
    height: 100%;
    margin: 0;
    padding: 14px 16px;
    border: 0 !important;
    border-radius: 0;
    background: transparent;
    color: #1e293b;
    font: 13px/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    resize: vertical;
    white-space: pre;
    overflow: auto;
    box-shadow: none !important;
}

.rtg-code-output:focus {
    outline: none;
    border: 0 !important;
    box-shadow: none !important;
}

.rtg-output-panel.is-ready .rtg-empty {
    display: none;
}

.rtg-output-panel.is-ready .rtg-editor {
    display: flex !important;
}

@media (max-width: 1024px) {
    .rtg-layout {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .rtg-output-panel {
        position: static;
        min-height: 0;
    }
}

@media (max-width: 820px) {
    .rtg-field-row,
    .rtg-field-row--2 {
        grid-template-columns: 1fr;
    }

    .rtg-output-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .rtg-result-actions {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 620px) {
    .rtg-input-panel,
    .rtg-output-panel {
        padding: 16px;
    }

    .rtg-block {
        padding: 12px;
    }

    .rtg-primary {
        width: 100%;
    }

    .rtg-action-btn {
        justify-content: center;
        min-height: 44px;
        flex: 1 1 auto;
    }

    .rtg-editor-frame,
    .rtg-code-output {
        min-height: 220px;
    }

    .rtg-code-output {
        font-size: 16px;
    }

    .rtg-icon-btn {
        width: 48px;
        height: 48px;
    }

    .rtg-empty {
        min-height: 200px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .rtg-tool *,
    .rtg-tool *::before,
    .rtg-tool *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}