.tdev-json-tool {
    --tdev-primary: #2563eb;
    --tdev-primary-hover: #1d4ed8;

    --tdev-bg: #ffffff;
    --tdev-surface: #ffffff;
    --tdev-surface-hover: #f1f5f9;

    --tdev-text: #172033;
    --tdev-text-soft: #334155;
    --tdev-text-muted: #475569;

    --tdev-border: #dbe3ef;
    --tdev-border-strong: #cbd5e1;

    --tdev-success: #166534;
    --tdev-error: #b42318;
    --tdev-danger: #b42318;

    width: 100%;
    max-width: 100%;
    min-width: 0;

    box-sizing: border-box;

    background: var(--tdev-bg);
    color: var(--tdev-text);

    font: inherit;
    text-align: left;

    overflow-x: hidden;
}

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


/* =====================================================
   TOOLBAR
   ===================================================== */

.tdev-jf-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;

    gap: 12px;

    padding: 14px;

    background: var(--tdev-surface);
    border-bottom: 1px solid var(--tdev-border);
}

.tdev-jf-main-actions,
.tdev-jf-secondary-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;

    gap: 8px;

    min-width: 0;
}


/* =====================================================
   BUTTONS
   ===================================================== */

.tdev-jf-btn {
    appearance: none;
    -webkit-appearance: none;

    min-height: 40px;

    padding: 9px 13px;

    border: 1px solid var(--tdev-border);
    border-radius: 9px;

    background: var(--tdev-surface);
    color: var(--tdev-text-soft);

    font: inherit;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.2;

    cursor: pointer;

    transition:
        background-color .15s ease,
        border-color .15s ease,
        color .15s ease,
        transform .15s ease;
}

.tdev-jf-btn:hover {
    background: var(--tdev-surface-hover);
    border-color: var(--tdev-primary);
    color: var(--tdev-primary);

    transform: translateY(-1px);
}

.tdev-jf-btn:active {
    transform: translateY(0);
}

.tdev-jf-btn.tdev-jf-primary {
    background: var(--tdev-primary);
    border-color: var(--tdev-primary);
    color: #ffffff;
    font-weight: 700;
}

.tdev-jf-btn.tdev-jf-primary:hover {
    background: var(--tdev-primary-hover);
    border-color: var(--tdev-primary-hover);
    color: #ffffff;
}

.tdev-jf-btn.tdev-jf-danger {
    color: var(--tdev-danger);
}

.tdev-jf-btn.tdev-jf-danger:hover {
    background: var(--tdev-danger);
    border-color: var(--tdev-danger);
    color: #ffffff;
}


/* =====================================================
   ACCESSIBILITY
   ===================================================== */

.tdev-json-tool button:focus-visible,
.tdev-json-tool input:focus-visible,
.tdev-json-tool textarea:focus-visible,
.tdev-json-tool select:focus-visible,
.tdev-json-tool summary:focus-visible {
    outline: 3px solid rgba(37, 99, 235, .35);
    outline-offset: 2px;
}


/* =====================================================
   INDENT
   ===================================================== */

.tdev-jf-select-wrap {
    display: flex;
    align-items: center;

    gap: 7px;

    min-height: 40px;

    color: var(--tdev-text-soft);

    font-size: 13px;
    font-weight: 500;
}

.tdev-jf-select-wrap select {
    min-height: 40px;

    padding: 8px 30px 8px 10px;

    border: 1px solid var(--tdev-border);
    border-radius: 8px;

    background: var(--tdev-surface);
    color: var(--tdev-text);

    font: inherit;
    font-size: 13px;

    cursor: pointer;
}


/* =====================================================
   SEARCH
   ===================================================== */

.tdev-jf-searchbar {
    display: flex;
    align-items: center;

    gap: 8px;

    min-width: 0;

    padding: 11px 14px;

    background: var(--tdev-surface);
    border-bottom: 1px solid var(--tdev-border);
}

.tdev-jf-search-count {
    flex: 0 0 auto;

    min-width: 44px;

    color: var(--tdev-text-muted);

    font-size: 11px;
    font-weight: 600;

    text-align: center;
}

.tdev-jf-search-nav {
    appearance: none;
    -webkit-appearance: none;

    flex: 0 0 auto;

    width: 40px;
    height: 40px;

    padding: 0;

    border: 1px solid var(--tdev-border);
    border-radius: 8px;

    background: var(--tdev-surface);
    color: var(--tdev-text-soft);

    font: inherit;
    font-size: 16px;
    line-height: 1;

    cursor: pointer;
}

.tdev-jf-search-nav:hover:not(:disabled) {
    background: var(--tdev-surface-hover);
    border-color: var(--tdev-primary);
    color: var(--tdev-primary);
}

.tdev-jf-search-nav:active:not(:disabled) {
    background: var(--tdev-primary);
    border-color: var(--tdev-primary);
    color: #ffffff;
}

.tdev-jf-search-nav:disabled {
    cursor: not-allowed;

    opacity: .45;
}

.tdev-jf-search-field {
    position: relative;

    width: min(560px, 100%);

    min-width: 0;
}

.tdev-jf-search-icon {
    position: absolute;

    left: 11px;
    top: 50%;

    transform: translateY(-50%);

    pointer-events: none;

    font-size: 13px;
}

.tdev-jf-searchbar input {
    width: 100%;
    min-width: 0;

    min-height: 40px;

    padding: 9px 12px 9px 32px;

    border: 1px solid var(--tdev-border);
    border-radius: 9px;

    background: var(--tdev-surface);
    color: var(--tdev-text);

    font: inherit;
    font-size: 13px;
}

.tdev-jf-searchbar input::placeholder {
    color: var(--tdev-text-muted);
    opacity: 1;
}

.tdev-jf-privacy {
    flex: 0 0 auto;

    color: var(--tdev-text-muted);

    font-size: 12px;
    font-weight: 500;
}


/* Search highlight */

.tdev-jf-output mark {
    background: #fef08a;
    color: #111827;

    border-radius: 2px;

    padding: 0 2px;
}


/* =====================================================
   PANELS
   ===================================================== */

.tdev-jf-panels {
    display: grid;

    grid-template-columns:
        minmax(0, 1fr)
        minmax(0, 1fr);

    width: 100%;
    min-width: 0;

    min-height: 520px;

    background: var(--tdev-surface);
}

.tdev-jf-panel {
    min-width: 0;

    background: var(--tdev-surface);

    border-right: 1px solid var(--tdev-border);
}

.tdev-jf-panel:last-child {
    border-right: 0;
}


/* =====================================================
   PANEL HEADER
   ===================================================== */

.tdev-jf-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 10px;

    min-height: 36px;

    padding: 9px 12px;

    border-bottom: 1px solid var(--tdev-border);

    color: var(--tdev-text);

    font-size: 13px;
    font-weight: 700;
}

.tdev-jf-hint {
    color: var(--tdev-text-muted);
    font-size: 12px;
    font-weight: 400;
}

.tdev-jf-status {
    color: var(--tdev-text-muted);

    font-size: 12px;
    font-weight: 600;
}

.tdev-jf-status.ok {
    color: var(--tdev-success);
}

.tdev-jf-status.bad {
    color: var(--tdev-error);
}


/* =====================================================
   EDITOR
   ===================================================== */

.tdev-jf-editor-wrap {
    display: grid;

    grid-template-columns:
        44px minmax(0, 1fr);

    width: 100%;
    min-width: 0;

    height: 480px;

    background: var(--tdev-surface);
}

.tdev-jf-lines {
    min-width: 0;

    padding: 14px 9px;

    border-right: 1px solid var(--tdev-border);

    color: var(--tdev-text-muted);

    text-align: right;
    white-space: pre;

    font:
        13px / 1.55
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    overflow: hidden;
    user-select: none;
}

#tdev-jf-input {
    display: block;

    width: 100%;
    min-width: 0;
    height: 100%;

    margin: 0;
    padding: 14px;

    resize: none;

    border: 0;
    outline: 0;

    background: transparent;
    color: var(--tdev-text);

    font:
        13px / 1.55
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    tab-size: 2;

    overflow: auto;

    -webkit-overflow-scrolling: touch;
}

#tdev-jf-input::placeholder {
    color: var(--tdev-text-muted);
    opacity: 1;
}


/* =====================================================
   OUTPUT
   ===================================================== */

.tdev-jf-output {
    width: 100%;
    min-width: 0;

    height: 480px;

    padding: 14px;

    background: var(--tdev-surface);
    color: var(--tdev-text);

    font:
        13px / 1.55
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    white-space: pre-wrap;

    overflow: auto;
    overflow-wrap: anywhere;
    word-break: break-word;

    -webkit-overflow-scrolling: touch;
}


/* =====================================================
   ERROR
   ===================================================== */

.tdev-jf-message {
    margin: 12px 14px;
    padding: 12px;

    border: 1px solid currentColor;
    border-radius: 9px;

    color: var(--tdev-error);

    background: rgba(180, 35, 24, .06);

    font-size: 13px;
    line-height: 1.5;

    overflow-wrap: anywhere;
}

.tdev-jf-message[hidden],
.tdev-jf-tree[hidden] {
    display: none;
}


/* =====================================================
   STATS
   ===================================================== */

.tdev-jf-stats {
    display: grid;

    grid-template-columns:
        repeat(7, minmax(0, 1fr));

    gap: 1px;

    border-top: 1px solid var(--tdev-border);

    background: var(--tdev-border);
}

.tdev-jf-stats div {
    min-width: 0;

    padding: 12px 8px;

    background: var(--tdev-surface);

    text-align: center;
}

.tdev-jf-stats strong,
.tdev-jf-stats span {
    display: block;
    overflow-wrap: anywhere;
}

.tdev-jf-stats strong {
    color: var(--tdev-text);

    font-size: 16px;
    line-height: 1.3;
}

.tdev-jf-stats span {
    margin-top: 3px;

    color: var(--tdev-text-muted);

    font-size: 11px;
    line-height: 1.35;
}


/* =====================================================
   TREE
   ===================================================== */

.tdev-jf-tree {
    width: 100%;
    min-width: 0;

    max-height: 520px;

    padding: 18px;

    border-top: 1px solid var(--tdev-border);

    background: var(--tdev-surface);
    color: var(--tdev-text);

    font:
        13px / 1.55
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    overflow: auto;
    overflow-wrap: anywhere;

    -webkit-overflow-scrolling: touch;
}

.tdev-jf-node {
    margin-left: 18px;
}

.tdev-jf-node summary {
    min-height: 30px;

    padding: 3px 0;

    color: var(--tdev-text);

    cursor: pointer;

    overflow-wrap: anywhere;
}

.tdev-jf-leaf {
    margin-left: 18px;

    padding: 3px 0;

    color: var(--tdev-text);

    overflow-wrap: anywhere;
    word-break: break-word;
}

.tdev-jf-key {
    color: var(--tdev-text);
    font-weight: 700;
}

.tdev-jf-type {
    color: var(--tdev-text-muted);
}


/* =====================================================
   TOOL DARK MODE
   ===================================================== */

.tdev-json-tool.tdev-jf-dark {
    --tdev-bg: #0b1220;
    --tdev-surface: #0f172a;
    --tdev-surface-hover: #17233a;

    --tdev-text: #f1f5f9;
    --tdev-text-soft: #e2e8f0;
    --tdev-text-muted: #cbd5e1;

    --tdev-border: #263449;
    --tdev-border-strong: #3a4a63;

    --tdev-primary: #3b82f6;
    --tdev-primary-hover: #60a5fa;

    --tdev-success: #86efac;
    --tdev-error: #fca5a5;
    --tdev-danger: #fca5a5;

    background: var(--tdev-bg);
    color: var(--tdev-text);
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-btn,
.tdev-json-tool.tdev-jf-dark .tdev-jf-search-nav,
.tdev-json-tool.tdev-jf-dark .tdev-jf-select-wrap select,
.tdev-json-tool.tdev-jf-dark .tdev-jf-searchbar input {
    background: var(--tdev-surface);
    color: var(--tdev-text-soft);
    border-color: var(--tdev-border);
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-btn:hover,
.tdev-json-tool.tdev-jf-dark .tdev-jf-search-nav:hover:not(:disabled) {
    background: var(--tdev-surface-hover);
    border-color: #60a5fa;
    color: #60a5fa;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-btn.tdev-jf-primary {
    background: var(--tdev-primary);
    border-color: var(--tdev-primary);
    color: #ffffff;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-btn.tdev-jf-primary:hover {
    background: var(--tdev-primary-hover);
    border-color: var(--tdev-primary-hover);
    color: #0b1220;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-btn.tdev-jf-danger {
    color: #fca5a5;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-btn.tdev-jf-danger:hover {
    background: #b42318;
    border-color: #b42318;
    color: #ffffff;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-searchbar input::placeholder {
    color: #94a3b8;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-output mark {
    background: #854d0e;
    color: #fff7ed;
}

.tdev-json-tool.tdev-jf-dark .tdev-jf-theme-toggle {
    background: #17233a;
    border-color: #3a4a63;
    color: #f1f5f9;
}


/* =====================================================
   THEME BUTTON
   ===================================================== */

.tdev-jf-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    gap: 6px;
}

.tdev-jf-theme-icon {
    font-size: 14px;
    line-height: 1;
}

.tdev-jf-theme-text {
    line-height: 1;
}


/* =====================================================
   TABLET
   ===================================================== */

@media (max-width: 900px) {

    .tdev-jf-toolbar {
        align-items: stretch;
    }

    .tdev-jf-main-actions,
    .tdev-jf-secondary-actions {
        flex: 1 1 100%;
    }

    .tdev-jf-panels {
        grid-template-columns: 1fr;
    }

    .tdev-jf-panel {
        border-right: 0;
        border-bottom: 1px solid var(--tdev-border);
    }

    .tdev-jf-panel:last-child {
        border-bottom: 0;
    }

    .tdev-jf-editor-wrap {
        height: 380px;
    }

    .tdev-jf-output {
        height: 380px;
    }

    .tdev-jf-stats {
        grid-template-columns:
            repeat(4, minmax(0, 1fr));
    }
}


/* =====================================================
   MOBILE
   ===================================================== */

@media (max-width: 600px) {

    .tdev-jf-toolbar {
        display: grid;

        grid-template-columns:
            minmax(0, 1fr);

        gap: 10px;

        padding: 10px;
    }

    .tdev-jf-main-actions,
    .tdev-jf-secondary-actions {
        display: grid;

        grid-template-columns:
            repeat(2, minmax(0, 1fr));

        width: 100%;

        gap: 7px;
    }

    .tdev-jf-btn {
        width: 100%;
        min-width: 0;
        min-height: 42px;

        padding: 9px 8px;

        font-size: 12px;
    }

    .tdev-jf-select-wrap {
        grid-column: 1 / -1;

        display: grid;

        grid-template-columns:
            auto minmax(0, 1fr);

        min-height: 42px;
    }

    .tdev-jf-select-wrap select {
        width: 100%;
        min-width: 0;
        min-height: 42px;
    }


    /* Search */

    .tdev-jf-searchbar {
        flex-wrap: wrap;
        padding: 10px;
    }

    .tdev-jf-search-count {
        min-width: 44px;
    }

    .tdev-jf-search-nav {
        width: 40px;
        min-width: 40px;
        min-height: 40px;
    }

    .tdev-jf-search-field {
        flex: 1 1 calc(100% - 140px);
        min-width: 0;
    }

    .tdev-jf-privacy {
        width: 100%;
        margin-top: 2px;
        font-size: 11px;
    }


    /* Panels */

    .tdev-jf-panel-head {
        min-height: 40px;
        padding: 9px 10px;
        font-size: 12px;
    }

    .tdev-jf-hint {
        font-size: 11px;
    }


    /* Editor */

    .tdev-jf-editor-wrap {
        grid-template-columns:
            38px minmax(0, 1fr);

        height: 360px;
    }

    .tdev-jf-lines {
        padding: 12px 7px;
        font-size: 12px;
    }

    #tdev-jf-input {
        padding: 12px;
        font-size: 12px;
    }

    .tdev-jf-output {
        height: 360px;
        padding: 12px;
        font-size: 12px;
    }


    /* Stats */

    .tdev-jf-stats {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

    .tdev-jf-stats div {
        padding: 11px 7px;
    }

    .tdev-jf-stats strong {
        font-size: 15px;
    }

    .tdev-jf-stats span {
        font-size: 10px;
    }


    /* Tree */

    .tdev-jf-tree {
        max-height: 460px;
        padding: 12px;
        font-size: 12px;
    }

    .tdev-jf-node,
    .tdev-jf-leaf {
        margin-left: 12px;
    }
}


/* =====================================================
   SMALL PHONES
   ===================================================== */

@media (max-width: 380px) {

    .tdev-jf-toolbar {
        padding: 8px;
    }

    .tdev-jf-main-actions,
    .tdev-jf-secondary-actions {
        gap: 6px;
    }

    .tdev-jf-btn {
        min-height: 42px;
        padding: 8px 5px;
        font-size: 11px;
    }

    .tdev-jf-search-count {
        min-width: 32px;
        font-size: 10px;
    }

    .tdev-jf-search-nav {
        width: 36px;
        min-width: 36px;
    }

    .tdev-jf-search-field {
        flex-basis: calc(100% - 118px);
    }

    .tdev-jf-editor-wrap {
        grid-template-columns:
            34px minmax(0, 1fr);

        height: 330px;
    }

    .tdev-jf-lines {
        padding-left: 4px;
        padding-right: 5px;
        font-size: 11px;
    }

    #tdev-jf-input,
    .tdev-jf-output {
        font-size: 11px;
    }

    #tdev-jf-input {
        padding: 10px;
    }

    .tdev-jf-output {
        height: 330px;
        padding: 10px;
    }
}


/* =====================================================
   ACCESSIBILITY CONTRAST FIXES
   ===================================================== */

/* Keep search/status text clearly readable against the white surface. */
.tdev-json-tool .tdev-jf-search-count {
    color: #172033 !important;
}

.tdev-json-tool .tdev-jf-search-nav {
    color: #334155 !important;
    opacity: 1;
}

.tdev-json-tool .tdev-jf-search-nav:disabled {
    color: #64748b !important;
    opacity: 1;
}

.tdev-json-tool .tdev-jf-searchbar input {
    color: #172033 !important;
}

.tdev-json-tool .tdev-jf-searchbar input::placeholder {
    color: #334155 !important;
    opacity: 1;
}

.tdev-json-tool .tdev-jf-privacy {
    color: #334155 !important;
}

/* The output is a preformatted text surface, not an interactive control. */
.tdev-json-tool .tdev-jf-output {
    margin: 0;
}


/* =====================================================
   REDUCED MOTION
   ===================================================== */

@media (prefers-reduced-motion: reduce) {

    .tdev-json-tool *,
    .tdev-json-tool *::before,
    .tdev-json-tool *::after {
        transition: none !important;
        animation: none !important;
    }

    .tdev-jf-btn:hover {
        transform: none;
    }
}