/* The forji web renderer's look (specs.md §6). Every token is a custom
   property an embedder may override on any ancestor, or on a widget
   (`forji-chat { --forji-accent: … }`), whose shadow root reads them. */

.forji, :host {
  --forji-ink: #1c1d21;
  --forji-muted: #6b6f7a;
  --forji-accent: #3b5bdb;
  --forji-on-accent: #ffffff;
  --forji-good: #1f9d55;
  --forji-warn: #c47f00;
  --forji-danger: #d64545;
  --forji-surface: #ffffff;
  --forji-raised: #f0f1f6;
  /* What the tab shows around its panels. */
  --forji-background: #f3f4f9;
  --forji-glass: rgba(255, 255, 255, 0.82);
  /* What floats (menus, lists, dialogs, a pane's panel): see-through, what lies under it blurred, brighter than the background. */
  --forji-popup: rgba(255, 255, 255, 0.86);
  /* A panel as it shows over the background, solid: what covers what it draws (a row's actions over its text). */
  --forji-panel: #fdfdfe;
  --forji-blur: 16px;
  --forji-line: #e0e2ea;
  /* Panels; controls are three quarters of it, popups half as much again, tabs and chips pills. */
  --forji-radius: 16px;
  /* What insets every sidebar and maximized panel from the tab's edges and from each other. */
  --forji-gap: 12px;
  --forji-shadow: 0 1px 2px rgba(20, 24, 40, 0.05), 0 2px 10px rgba(20, 24, 40, 0.04);
  --forji-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --forji-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --forji-scale: 1.0625;
  color: var(--forji-ink);
  background: var(--forji-surface);
  font-family: var(--forji-font);
  font-size: calc(15px * var(--forji-scale));
  line-height: 1.4;
  color-scheme: light;
}
.forji[data-theme="dark"], :host([data-theme="dark"]) {
  --forji-ink: #e8e9ee;
  --forji-muted: #9a9eab;
  --forji-accent: #748ffc;
  --forji-on-accent: #10121a;
  --forji-good: #3dbb73;
  --forji-warn: #e0a429;
  --forji-danger: #f06a6a;
  --forji-surface: #1b1e25;
  --forji-raised: #2c303b;
  --forji-background: #111318;
  --forji-glass: rgba(27, 30, 37, 0.82);
  --forji-popup: rgba(37, 41, 51, 0.84);
  --forji-panel: #22262f;
  --forji-line: #31353f;
  --forji-shadow: none;
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  .forji[data-theme="auto"], :host([data-theme="auto"]), :host(:not([data-theme])) {
    --forji-ink: #e8e9ee;
    --forji-muted: #9a9eab;
    --forji-accent: #748ffc;
    --forji-on-accent: #10121a;
    --forji-good: #3dbb73;
    --forji-warn: #e0a429;
    --forji-danger: #f06a6a;
    --forji-surface: #1b1e25;
    --forji-raised: #2c303b;
    --forji-background: #111318;
    --forji-glass: rgba(27, 30, 37, 0.82);
    --forji-popup: rgba(37, 41, 51, 0.84);
    --forji-panel: #22262f;
    --forji-line: #31353f;
    --forji-shadow: none;
    color-scheme: dark;
  }
}

/* No blur to see through: what floats stays solid, readable over anything. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .forji, :host { --forji-popup: var(--forji-panel) !important; }
}

.forji *, .forji *::before, .forji *::after { box-sizing: border-box; }
/* Scrollbars thin and quiet. */
.forji, .forji * { scrollbar-width: thin; scrollbar-color: color-mix(in srgb, var(--forji-muted) 40%, transparent) transparent; }
.forji ::-webkit-scrollbar { width: 6px; height: 6px; }
.forji ::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--forji-muted) 40%, transparent); border-radius: 3px; }
.forji [hidden] { display: none !important; }

/* A view's root: a column, framed as chat lines ask; a col framed so is another's line. */
.f-view { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
:is(.f-view, .f-col)[data-frame="bubble"] {
  align-self: flex-start; max-width: 85%; padding: 10px 14px;
  background: var(--forji-raised); border-radius: calc(var(--forji-radius) * 1.25);
  border-bottom-left-radius: 6px;
}
.f-view[data-frame="bubble"][data-mine] {
  align-self: flex-end; background: var(--forji-accent); color: var(--forji-on-accent);
  border-bottom-left-radius: calc(var(--forji-radius) * 1.25); border-bottom-right-radius: 6px;
}
.f-view[data-frame="bubble"][data-mine] .f-text a { color: inherit; }
.f-view[data-pending] { opacity: 0.6; }
:is(.f-view, .f-col)[data-frame="card"] {
  padding: 12px 14px; border: 1px solid var(--forji-line); border-radius: var(--forji-radius);
  background: var(--forji-surface);
}
:is(.f-view, .f-col)[data-frame="card"][data-tone] { border-color: var(--f-tone); }
.f-view[data-frame="line"] { color: var(--forji-muted); font-size: 0.87em; padding: 0 4px; }

.f-col { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.f-row { display: flex; flex-direction: row; gap: 8px; align-items: center; min-width: 0; }
.f-row[data-wrap] { flex-wrap: wrap; }
.f-row[data-overlap] > * + * { margin-left: calc(-1 * var(--f-overlap)); }

[data-tone] { --f-tone: var(--forji-ink); }
[data-tone="ink"] { --f-tone: var(--forji-ink); }
[data-tone="muted"] { --f-tone: var(--forji-muted); }
[data-tone="accent"] { --f-tone: var(--forji-accent); }
[data-tone="good"] { --f-tone: var(--forji-good); }
[data-tone="warn"] { --f-tone: var(--forji-warn); }
[data-tone="danger"] { --f-tone: var(--forji-danger); }

.f-text { min-width: 0; overflow-wrap: anywhere; }
.f-text[data-tone] { color: var(--f-tone); }
.f-text.f-plain { white-space: pre-wrap; }
.f-text[data-size="s"] { font-size: 0.87em; }
.f-text[data-size="l"] { font-size: 1.2em; font-weight: 600; }
.f-text[data-size="xl"] { font-size: 1.6em; font-weight: 700; line-height: 1.2; }
.f-text[data-mono] { font-family: var(--forji-mono); font-size: 0.93em; }
.f-text[data-lines] {
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: var(--f-lines); overflow: hidden;
}
.f-text p, .f-text ul, .f-text ol, .f-text blockquote, .f-text pre, .f-text h1, .f-text h2, .f-text h3 { margin: 0; }
.f-text > * + * { margin-top: 0.5em; }
.f-text ul, .f-text ol { padding-left: 1.3em; }
.f-text blockquote { padding-left: 10px; border-left: 3px solid var(--forji-line); color: var(--forji-muted); }
.f-text code { font-family: var(--forji-mono); font-size: 0.9em; background: var(--forji-raised); padding: 0 4px; border-radius: 4px; }
.f-text pre { font-family: var(--forji-mono); font-size: 0.87em; background: var(--forji-raised); padding: 10px 12px; border-radius: calc(var(--forji-radius) * 0.75); overflow-x: auto; }
.f-text pre code { background: none; padding: 0; }
.f-text h1 { font-size: 1.4em; } .f-text h2 { font-size: 1.2em; } .f-text h3 { font-size: 1.05em; }
.f-text a { color: var(--forji-accent); }

.f-image { display: block; max-width: 100%; border-radius: calc(var(--forji-radius) * 0.75); object-fit: cover; background: var(--forji-raised); }

.f-avatar {
  position: relative; flex: none; display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%; background: var(--f-color, var(--forji-accent));
  color: #fff; font-weight: 600; font-size: 13px; box-shadow: 0 0 0 2px var(--forji-surface);
}
.f-avatar[data-size="s"] { width: 24px; height: 24px; font-size: 10px; }
.f-avatar[data-size="l"] { width: 44px; height: 44px; font-size: 17px; }
.f-avatar[data-ring] { box-shadow: 0 0 0 2px var(--forji-surface), 0 0 0 4px var(--f-tone); }
.f-avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.f-avatar .f-dot { position: absolute; right: -1px; bottom: -1px; }
.f-avatar .f-badge {
  position: absolute; top: -4px; right: -6px; min-width: 16px; height: 16px; padding: 0 4px;
  border-radius: 8px; background: var(--forji-danger); color: #fff; font-size: 10px; line-height: 16px; text-align: center;
}
.f-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--f-tone); box-shadow: 0 0 0 2px var(--forji-surface); flex: none; }

.f-icon { flex: none; width: 20px; height: 20px; }
.f-icon[data-tone] { color: var(--f-tone); }
.f-icon[data-size="s"] { width: 16px; height: 16px; }
.f-icon[data-size="l"] { width: 28px; height: 28px; }
.f-icon path { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }

.f-pill {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 12px; border-radius: 999px;
  background: var(--forji-raised); font-size: 0.87em; white-space: nowrap; color: var(--forji-ink);
}
.f-pill[data-tone] { color: var(--f-tone); background: color-mix(in srgb, var(--f-tone) 14%, var(--forji-surface)); }
.f-pill .f-icon { width: 14px; height: 14px; }
.f-pill .f-dot { width: 7px; height: 7px; box-shadow: none; }

.f-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 40px; padding: 8px 18px; box-sizing: border-box;
  font: inherit; font-weight: 500; color: var(--forji-ink); background: var(--forji-raised);
  border: 1px solid var(--forji-line); border-radius: calc(var(--forji-radius) * 0.75); cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.f-button:hover:not(:disabled) { border-color: color-mix(in srgb, var(--forji-accent) 45%, var(--forji-line)); }
.f-button[data-kind="primary"]:hover:not(:disabled) { box-shadow: 0 2px 8px color-mix(in srgb, var(--forji-accent) 35%, transparent); }
.f-button[data-kind="plain"]:hover:not(:disabled) { background: var(--forji-raised); border-color: transparent; }
.f-button[data-tone] { color: var(--f-tone); }
.f-button[data-kind="primary"] { background: var(--forji-accent); border-color: var(--forji-accent); color: var(--forji-on-accent); }
.f-button[data-kind="primary"][data-tone] { background: var(--f-tone); border-color: var(--f-tone); color: var(--forji-on-accent); }
.f-button[data-kind="plain"] { background: none; border-color: transparent; }
.f-button[data-icon-only] { padding: 8px; min-width: 40px; border-radius: 999px; }
.f-button:disabled { opacity: 0.45; cursor: default; }
.f-button:focus-visible, .f-act:focus-visible, .f-seg:focus-visible { outline: 2px solid var(--forji-accent); outline-offset: 2px; }

.f-choice { display: inline-flex; border: 1px solid var(--forji-line); border-radius: 999px; overflow: hidden; align-self: flex-start; }
.f-seg { font: inherit; min-height: 38px; padding: 8px 16px; border: 0; background: var(--forji-surface); color: var(--forji-ink); cursor: pointer; }
.f-seg + .f-seg { border-left: 1px solid var(--forji-line); }
.f-seg[aria-checked="true"] { background: var(--forji-accent); color: var(--forji-on-accent); }
select.f-choice { font: inherit; min-height: 40px; padding: 8px 14px; border-radius: calc(var(--forji-radius) * 0.75); background: var(--forji-surface); color: var(--forji-ink); }

.f-input { display: flex; gap: 8px; align-items: flex-end; min-width: 0; }
.f-input input, .f-input textarea {
  flex: 1; min-width: 0; min-height: 40px; box-sizing: border-box; font: inherit; color: var(--forji-ink); background: var(--forji-surface);
  padding: 8px 12px; border: 1px solid var(--forji-line); border-radius: calc(var(--forji-radius) * 0.75); resize: vertical;
}
.f-input input:focus, .f-input textarea:focus { outline: 2px solid var(--forji-accent); outline-offset: -1px; }

.f-time { display: inline-flex; align-items: center; gap: 6px; font-variant-numeric: tabular-nums; color: var(--forji-muted); font-size: 0.87em; }
.f-ring { width: 18px; height: 18px; transform: rotate(-90deg); }
.f-ring circle { fill: none; stroke-width: 3; }

/* A box of its own wherever it stands: inline, a span's width and height would be lost (a squashed ring). */
.f-spinner {
  display: inline-block; vertical-align: middle;
  width: 18px; height: 18px; border-radius: 50%; flex: none;
  border: 2px solid var(--forji-line); border-top-color: var(--forji-accent); animation: f-spin 0.8s linear infinite;
}
@keyframes f-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .f-spinner { animation: none; } }

.f-collapse { display: flex; flex-direction: column; min-width: 0; }
.f-collapse > .f-head {
  display: flex; align-items: center; gap: 6px; align-self: flex-start; max-width: 100%; font: inherit; color: inherit; background: none;
  border: 0; padding: 2px 8px 2px 4px; margin-left: -4px; border-radius: 8px; cursor: pointer; text-align: left; transition: background-color 0.15s, color 0.15s;
}
.f-collapse > .f-head:hover { background: var(--forji-raised); color: var(--forji-ink); }
.f-collapse > .f-head .f-icon { width: 16px; height: 16px; color: var(--forji-muted); transition: transform 0.15s; }
.f-collapse[data-open] > .f-head .f-icon { transform: rotate(90deg); }
.f-collapse > .f-body { display: flex; flex-direction: column; gap: 6px; padding: 4px 0 6px 20px; }
/* What a step was given and gave back: code, quiet, in a box of its own, wrapped. */
.f-collapse > .f-body > .f-text[data-mono] { padding: 8px 10px; border-radius: 10px; background: var(--forji-raised); color: var(--forji-ink); white-space: pre-wrap; max-height: 16em; overflow: auto; }
/* A line's icon stands on its words' first line; a failed step's error wraps under its title. */
.f-view[data-frame="line"] .f-row > .f-icon:first-child { margin-top: 4px; }
/* A step's one icon is its check (or cross): its title, which opens it, draws no chevron of its own. */
.f-view[data-frame="line"] .f-row > .f-icon:first-child ~ .f-collapse > .f-head > .f-icon,
.f-view[data-frame="line"] .f-row > .f-icon:first-child ~ .f-col > .f-collapse:first-child > .f-head > .f-icon { display: none; }
.f-view[data-frame="line"] .f-text[data-tone="danger"] { overflow-wrap: anywhere; }
.f-collapse:not([data-open]) > .f-body { display: none; }

/* A node's view: its page, filling the space it is given. */
.forji-root { height: 100%; }
.f-view.f-page { height: 100%; }
.f-page > iframe { display: block; width: 100%; height: 100%; border: 0; background: transparent; }

.f-issue {
  display: flex; gap: 8px; align-items: flex-start; padding: 10px 12px; border-radius: calc(var(--forji-radius) * 0.75);
  color: var(--forji-danger); background: color-mix(in srgb, var(--forji-danger) 10%, var(--forji-surface));
  border: 1px solid color-mix(in srgb, var(--forji-danger) 40%, var(--forji-surface)); font-size: 0.93em;
}

.f-act { cursor: pointer; }
[data-grow] { flex-grow: var(--f-grow); flex-basis: 0; }

.f-menu {
  position: fixed; z-index: 1000; min-width: 160px; padding: 4px; margin: 0; list-style: none;
  background: var(--forji-popup); backdrop-filter: blur(var(--forji-blur)) saturate(1.2); -webkit-backdrop-filter: blur(var(--forji-blur)) saturate(1.2); color: var(--forji-ink); border: 1px solid var(--forji-line);
  border-radius: var(--forji-radius); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18); font-family: var(--forji-font);
}
.f-menu button {
  display: flex; align-items: center; gap: 8px; width: 100%; min-height: 40px; padding: 8px 12px; font: inherit; color: inherit;
  background: none; border: 0; border-radius: 10px; text-align: left; cursor: pointer;
}
.f-menu button[data-tone] { color: var(--f-tone); }
.f-menu button:hover, .f-menu button:focus { background: var(--forji-raised); outline: none; }