/*
 * Semantic UI editor — layout overrides on top of /sui/sui.css.
 *
 * The editor uses sui-* primitives wherever possible (buttons, forms,
 * detail rows) so it inherits theme tokens automatically. Only the
 * editor-specific layout (header / tree / panel / preview split) and the
 * tree node rendering are defined here.
 */

/* ── Root layout ─────────────────────────────────────────────────────────── */

html, body { height: 100%; margin: 0; }
body {
    font-family: var(--sui-font-family, system-ui, sans-serif);
    color: var(--sui-color-text, #1a1a1a);
    background: var(--sui-color-bg, #f5f5f5);
}

#sui-editor-root {
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-columns: 1fr;
    height: 100vh;
}

.sui-editor-toolbar {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px;
    padding: 8px 16px;
    background: var(--sui-color-surface);
    border-bottom: 1px solid var(--sui-color-border);
    box-shadow: var(--sui-shadow-card);
}
.sui-editor-toolbar h1 {
    font-size: 14px; font-weight: 600; letter-spacing: .02em;
    margin: 0;
}
.sui-editor-toolbar .sui-editor-status {
    font-size: 12px;
    color: var(--sui-color-text-muted);
}
.sui-editor-toolbar .sui-editor-actions {
    display: flex; gap: 8px;
}

/* Three-pane main area: tree (left), panel + preview stacked (right). */
/* The <sui-editor> web component: a block that fills its host box, with the
   three-pane grid stretched inside it. (bootEditor uses the same grid under a
   toolbar via #sui-editor-root; the element uses it standalone.) */
sui-editor {
    display: block;
    height: 100%;
    min-height: 0;
}
sui-editor > .sui-editor-main {
    height: 100%;
}

.sui-editor-main {
    display: grid;
    /* tree | gutter | right — --tree-w is driven by the column splitter. */
    grid-template-columns: var(--tree-w, 280px) 6px minmax(0, 1fr);
    grid-template-rows: 1fr;
    overflow: hidden;
}

/* Drag handles between panes. Sit in their own 6px grid track. */
.sui-editor-gutter {
    background: var(--sui-color-border);
    position: relative;
    z-index: 1;
}
.sui-editor-gutter:hover,
.sui-editor-resizing .sui-editor-gutter {
    background: var(--sui-color-primary);
}
.sui-editor-gutter--col { cursor: col-resize; }
.sui-editor-gutter--row { cursor: row-resize; }
/* Widen the hit area beyond the visible 6px line without shifting layout. */
.sui-editor-gutter::after {
    content: ""; position: absolute; inset: -3px;
}
.sui-editor-gutter--col::after { inset: 0 -4px; }
.sui-editor-gutter--row::after { inset: -4px 0; }
/* While dragging, kill selection/iframe pointer capture across the whole app. */
body.sui-editor-resizing { cursor: inherit; user-select: none; }
body.sui-editor-resizing .sui-editor-preview-host { pointer-events: none; }

.sui-editor-tree-pane {
    background: var(--sui-color-surface);
    border-right: 1px solid var(--sui-color-border);
    overflow: auto;
    padding: 12px;
}
.sui-editor-tree-pane > h2 {
    font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--sui-color-text-muted); font-weight: 600;
    margin: 0 0 8px;
}

.sui-editor-right {
    display: grid;
    /* properties | gutter | preview — --panel-h is driven by the row splitter. */
    grid-template-rows: var(--panel-h, minmax(0, 1fr)) 6px minmax(0, 1fr);
    overflow: hidden;
}

.sui-editor-panel-pane {
    background: var(--sui-color-surface);
    border-bottom: 1px solid var(--sui-color-border);
    /* Flex column so the JSON editor fills the pane; the pane owns no scroll —
       Monaco scrolls internally, and it grows/shrinks with the row splitter. */
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 16px;
}
.sui-editor-panel-pane > h2 {
    flex: 0 0 auto;
    font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--sui-color-text-muted); font-weight: 600;
    margin: 0 0 10px;
}
/* The PropertyPanel mount host: a flex column of header · editor · status. */
.sui-editor-panel {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.sui-editor-panel > .sui-editor-panel-header,
.sui-editor-panel > .sui-editor-json-status,
.sui-editor-panel > .sui-editor-panel-empty { flex: 0 0 auto; }
.sui-editor-panel-empty {
    font-style: italic; color: var(--sui-color-empty);
    font-size: 13px;
}

.sui-editor-preview-pane {
    background: var(--sui-color-bg);
    overflow: auto;
    padding: 16px;
}
.sui-editor-preview-pane > h2 {
    font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--sui-color-text-muted); font-weight: 600;
    margin: 0 0 10px;
}
.sui-editor-preview-host {
    background: var(--sui-color-surface);
    border-radius: var(--sui-radius-md);
    box-shadow: var(--sui-shadow-card);
    padding: 16px;
    min-height: 80px;
}
/* Editor mode: every click is captured to select a tree node, never to
   navigate or submit. The pointer hint makes the contract obvious. */
.sui-editor-preview-host,
.sui-editor-preview-host * {
    cursor: pointer;
}
.sui-editor-preview-empty {
    font-style: italic; color: var(--sui-color-empty);
    font-size: 13px;
    text-align: center; padding: 24px;
}

/* Highlight ring around the DOM element matching the selected tree node.
   Outline (not border) so the page layout doesn't shift; offset gives it
   visual separation from the element's own border. */
.sui-editor-preview-host .sui-editor-selected {
    outline: 2px solid var(--sui-color-primary, #2563eb);
    outline-offset: 2px;
    border-radius: 3px;
}
/* Outline on <tr> is unreliable across browsers — give cells inside the
   selected row a top/bottom border instead so the selection is still
   visible. Same trick for <th>: outline works but a background tint makes
   it pop on dense table heads. */
.sui-editor-preview-host tr.sui-editor-selected > * {
    outline: 2px solid var(--sui-color-primary, #2563eb);
    outline-offset: -2px;
}
.sui-editor-preview-host th.sui-editor-selected {
    background: color-mix(in srgb, var(--sui-color-primary, #2563eb) 18%, transparent);
}

/* ── Tree rendering ──────────────────────────────────────────────────────── */

.sui-tree, .sui-tree ul {
    list-style: none; padding: 0; margin: 0;
}
.sui-tree ul {
    /* nested levels get a left rule + indent so containment is visible */
    margin-left: 10px;
    padding-left: 10px;
    border-left: 1px dashed var(--sui-color-border);
}
.sui-tree-node {
    display: flex; align-items: center; gap: 4px;
    padding: 3px 6px;
    border-radius: var(--sui-radius-sm);
    cursor: default;
    font-size: 13px;
    line-height: 1.4;
}
.sui-tree-node:hover {
    background: var(--sui-color-border-soft);
}
.sui-tree-node.is-selected {
    background: var(--sui-color-primary-soft);
    color: var(--sui-color-primary);
    font-weight: 500;
}
.sui-tree-type {
    display: inline-block;
    font-size: 10px; text-transform: uppercase; letter-spacing: .04em;
    background: var(--sui-color-border-soft);
    color: var(--sui-color-text-muted);
    padding: 1px 5px; border-radius: 3px;
    font-weight: 600;
}
/* Entry-wrapper rows (e.g. UiSection.Entry: id/title/content) get a lighter
   tag so they read as structural glue rather than as a UiNode of their own. */
.sui-tree-type--entry {
    background: transparent;
    color: var(--sui-color-text-subtle);
    border: 1px dashed var(--sui-color-border);
    padding: 0 4px;
}
.sui-tree-node.is-selected .sui-tree-type {
    background: var(--sui-color-primary);
    color: var(--sui-color-on-primary);
}
.sui-tree-id {
    font-family: var(--sui-font-mono, monospace);
    font-size: 12px;
}
.sui-tree-label {
    color: var(--sui-color-text-muted);
    font-size: 12px;
}

/* The tree's container groups have a label + plus-button + dedicated child <ul>. */
.sui-tree-group-label {
    display: flex; align-items: center; gap: 4px;
    font-size: 10px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--sui-color-text-subtle);
    margin: 4px 0 2px 16px;
    font-weight: 600;
}
.sui-tree-row-actions {
    margin-left: auto;
    display: flex; gap: 2px;
    opacity: 0;
    transition: opacity .1s;
}
.sui-tree-node:hover .sui-tree-row-actions,
.sui-tree-node.is-selected .sui-tree-row-actions {
    opacity: 1;
}
.sui-tree-action {
    background: none; border: none; cursor: pointer;
    font-family: inherit;
    font-size: 13px; line-height: 1;
    color: var(--sui-color-text-muted);
    padding: 1px 5px;
    border-radius: 3px;
}
.sui-tree-action:hover {
    background: var(--sui-color-border);
    color: var(--sui-color-text-strong, var(--sui-color-text));
}

/* ── Property panel ──────────────────────────────────────────────────────── */

.sui-editor-panel-header {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 8px;
    font-size: 13px;
}
/* Monaco JSON editor host. Monaco needs an explicit height to lay itself out;
   automaticLayout keeps it in sync with width changes. */
.sui-editor-json-monaco {
    /* Fill the remaining pane height; Monaco (automaticLayout) tracks it as the
       row splitter moves. min-height keeps it usable when the pane is short. */
    flex: 1 1 auto;
    min-height: 80px;
    border: 1px solid var(--sui-color-border-strong, #d1d5db);
    border-radius: var(--sui-radius-md, 6px);
    overflow: hidden;
}
/* Textarea fallback (used only when Monaco can't load, e.g. offline). */
.sui-editor-json-input {
    width: 100%;
    height: 100%;
    min-height: 220px;
    box-sizing: border-box;
    font-family: var(--sui-font-mono, ui-monospace, "SF Mono", Menlo, monospace);
    font-size: 12px;
    padding: 8px 10px;
    border: none;
    background: var(--sui-color-surface);
    color: var(--sui-color-text);
    resize: none;
}
.sui-editor-json-input:focus {
    outline: none;
}
.sui-editor-json-status {
    margin-top: 6px;
    min-height: 16px;
    font-size: 11px;
    color: var(--sui-color-text-muted);
}
.sui-editor-json-status[data-empty="true"] { visibility: hidden; }
.sui-editor-json-status[data-kind="error"] { color: var(--sui-color-danger); }
.sui-editor-json-status[data-kind="ok"]    { color: #16a34a; }
.sui-editor-json-status[data-kind="hint"]  { color: var(--sui-color-text-muted); }
/* Non-blocking warnings (e.g. duplicate ids after a JSON edit). Distinct
   from "error" — the mutation went through, just flagging a quality issue. */
.sui-editor-json-status[data-kind="warn"]  { color: #d97706; }

/* Save status pill in the toolbar */
.sui-editor-status[data-status="saving"] { color: var(--sui-color-primary); }
.sui-editor-status[data-status="dirty"]  { color: var(--sui-color-text-muted); font-style: italic; }
.sui-editor-status[data-status="error"]  { color: var(--sui-color-danger); }
.sui-editor-status[data-status="idle"]   { color: #16a34a; }

/* ── Add-type picker dialog ─────────────────────────────────────────────── */

.sui-editor-picker {
    border: 1px solid var(--sui-color-border);
    border-radius: var(--sui-radius-lg, 8px);
    background: var(--sui-color-surface);
    color: var(--sui-color-text);
    padding: 0;
    max-width: min(420px, 90vw);
    box-shadow: 0 10px 40px rgba(0,0,0,.25);
}
.sui-editor-picker::backdrop {
    background: rgba(15, 23, 42, .45);
}
.sui-editor-picker-body {
    padding: 16px 20px;
    margin: 0;
}
.sui-editor-picker-body h3 {
    margin: 0 0 10px;
    font-size: 14px;
}
.sui-editor-picker-list {
    list-style: none; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 4px;
    max-height: 60vh; overflow: auto;
}
.sui-editor-picker-list button {
    display: flex; align-items: center; gap: 10px; width: 100%;
    background: var(--sui-color-surface-alt, #f8fafc);
    border: 1px solid var(--sui-color-border-soft);
    border-radius: var(--sui-radius-md, 6px);
    padding: 8px 12px;
    text-align: left;
    cursor: pointer;
    font-family: inherit; font-size: 13px;
    color: var(--sui-color-text);
}
.sui-editor-picker-list button:hover {
    border-color: var(--sui-color-primary);
    background: var(--sui-color-primary-soft, #eff6ff);
}
.sui-editor-picker-list button small {
    margin-left: auto;
    font-size: 10px;
    color: var(--sui-color-text-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.sui-editor-picker-body menu {
    display: flex; justify-content: flex-end;
    padding: 0; margin: 12px 0 0;
    list-style: none;
}
.sui-editor-picker-body menu button {
    background: none; border: 1px solid var(--sui-color-border);
    border-radius: var(--sui-radius-md, 6px);
    padding: 6px 12px;
    font: inherit; font-size: 12px;
    cursor: pointer;
    color: var(--sui-color-text);
}
.sui-editor-picker-body menu button:hover {
    border-color: var(--sui-color-text-strong, var(--sui-color-text));
}