:root {
            --bg: #0f172a;
            --panel: #0b1220;
            --panel-2: #0d1627;
            --text: #e5e7eb;
            --muted: #9fb3c8;
            --border: #233043;
            --accent: #97a316;
            --accent-2: #38bdf8;
            --warn: #f59e0b;
        }

        * {
            box-sizing: border-box
        }

        html,
        body {
            height: 100%
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font: 12px/1.5 system-ui, Segoe UI, Roboto, Helvetica, Arial
        }

        a {
            color: var(--accent-2)
        }

        .app {
            display: grid;
            grid-template-columns: 1fr 1fr;
            min-height: 100vh
        }

        .left {
            /*background: var(--panel);*/
            background-color: #23334f;
            border-right: 1px solid var(--border);
            padding: 16px;
            overflow: auto
        }

        .right {
            background: #0a1120;
            padding: 16px;
            overflow: auto;
            position: fixed;
            right: 0;
            width: 49vw;
        }

        .title {
            font-size: 18px;
            margin: 0 0 8px 0;
            color: #d4e427;
        }

        .muted {
            color: var(--muted);
            font-size: 13px
        }

        .stagebar {
            display: flex;
            gap: 8px;
            flex-wrap: wrap
        }

        .stagebtn {
            padding: 6px 10px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #0c1830;
            color: var(--muted);
            cursor: pointer
        }

        .stagebtn[aria-current="step"] {
            color: var(--text);
            border-color: var(--accent)
        }

        .editor-wrap {
            display: grid;
            grid-template-columns: 1fr;
            gap: 8px
        }

        .code-tabs {
            display: flex;
            gap: 8px
        }

        .code-tab {
            background: #0e1a33;
            border: 1px solid var(--border);
            padding: 6px 10px;
            border-radius: 8px;
            color: var(--muted);
            cursor: pointer
        }

        .code-tab[aria-selected="true"] {
            color: var(--text);
            border-color: var(--accent)
        }

        textarea {
            width: 100%;
            height: 20vh;
            background: #071129;
            color: var(--text);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px;
            font-family: Consolas, Monaco, Menlo, monospace;
            font-size: 14px
        }

        textarea.light {
            background: #eeeeee;
            color: #333;
        }

        .controls {
            display: flex;
            flex-wrap: wrap;
            gap: 8px
        }

        .btn {
            background: #0e1a33;
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 12px;
            border-radius: 10px;
            cursor: pointer
        }

        .btn.primary {
            border-color: var(--accent);
            outline: 2px solid color-mix(in srgb, var(--accent) 30%, transparent)
        }

        .btn.warn {
            border-color: var(--warn)
        }

        .preview-tabs {
            display: flex;
            gap: 8px;
            margin-bottom: 10px
        }

        .tab {
            background: var(--panel-2);
            border: 1px solid var(--border);
            padding: 8px 12px;
            border-radius: 10px;
            cursor: pointer;
            color: var(--muted)
        }

        .tab[aria-selected="true"] {
            color: var(--text);
            border-color: var(--accent)
        }

        .preview {
            border: 1px solid var(--border);
            border-radius: 10px;
            background: white;
            min-height: 65vh
        }

        iframe {
            width: 100%;
            height: 67vh;
            border: 0;
            border-radius: 10px
        }

        .console {
            background: #020914;
            color: #d1e7ff;
            border: 1px solid var(--border);
            border-radius: 10px;
            min-height: 67vh;
            padding: 10px;
            white-space: pre-wrap;
            overflow: auto
        }

        .log {
            margin: 0
        }

        .log.warn {
            color: #ffe8a3
        }

        .log.error {
            color: #ffb4b4
        }

        .panel {
            display: none
        }

        .panel.active {
            display: block
        }

        @media (max-width: 1100px) {
            .app {
                grid-template-columns: 1fr
            }
        }

        .desc {
            background: #0e1a33;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px;
            color: var(--text);
        }

        .desc p {
            margin: 0;
        }

        .panel {
            display: none
        }

        .panel.active {
            display: block
        }

        .taskbox {
            background: #44536f;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px;
            margin: 8px 0 12px 0
        }

        .task-title {
            font-weight: 600;
            margin-bottom: 4px
        }

        .task-instr {
            color: var(--text);
            margin-bottom: 8px
        }

        .task-options {
            display: none !important;
        }

        .task-snippets .snippet {
            background: #071129;
            border: 1px dashed var(--border);
            border-radius: 10px;
            padding: 8px;
            margin: 6px 0
        }

        .task-snippets .snippet pre {
            margin: 0;
            white-space: pre-wrap
        }

        .task-snippets .snippet .copy {
            float: right;
            margin: -4px 0 0 8px;
            cursor: pointer
        }

        .task-snippets .snippet .snippet-preview {
            float: right;
            margin: -4px 0 0 8px;
            cursor: pointer
        }

        .block-head {
            display: flex;
            align-items: center;
            /* wyrównanie w pionie */
            justify-content: space-between;
            /* tytuł po lewej, przycisk po prawej */
            padding: 0.25em 0;
            border-bottom: 1px solid var(--border, #ccc);
            /* opcjonalnie */
        }

        .block-title {
            margin: 0;
            font-size: 1.2em;
        }

        .collapsed .block-title {
            opacity: 0.2;
        }

        .block-head .toggle {
            background: none;
            border: none;
            font-size: 1.2em;
            line-height: 1;
            cursor: pointer;
            color: var(--text, #333);
            padding: 0.25em 0.5em;
        }

        .block-head .toggle:focus {
            outline: 2px solid var(--accent, #0078d7);
            /* focus dla dostępności */
            outline-offset: 2px;
        }

        #block-stage-nav {
            background: #b0be18;
            border-radius: 5px;
            padding: 10px;
            margin-top: 15px;
            margin-bottom: 15px;
        }

        #block-stage-nav .block-head {
            border: 0px none;
        }


        #block-stage-nav .block-title {
            font-size: 1.1rem;
            margin-right: 12px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: #0f172a;
        }

        .check-limit-msg {
            margin-top: 6px;
            color: var(--warn);
            font-weight: 600;
        }
    
        /* Kolory podświetlenia tylko dla panelu snippetów (w <pre>) */
.snippet pre .hl        { padding: 0 .2em; border-radius: .25em; }
.snippet pre .hl-yellow { color: #fff3bf; }
.snippet pre .hl-green  { color: #edff29; }
.snippet pre .hl-blue   { color: #0693ff; }
.snippet pre .hl-red    { color: #ff0000; }
.snippet pre .hl-purple { color: #bfaaf8; }
.snippet pre .hl-orange { color: #ffbd21; }
.snippet pre .hl-pink   { color: #ffdce5; }
.snippet pre .hl-teal   { color: #c3fae8; }
.snippet pre .hl-gray   { color: #e9ecef; }

[hidden] { display: none !important; }