/* Kobalt component layer v0.1. Needs tokens.css first. Every class starts with `ko-`.
   Source of truth: site/brand/ on kobalthq.com/brand/ (copy these files, don't hotlink them).
   Fonts: Inter (UI), Inter Tight (display), JetBrains Mono (IDs, values). OFL, self-hosted. */

/* ---- Fonts: Latin + Cyrillic subsets of the variable fonts ---- */
@font-face { font-family: "Inter"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(fonts/inter-latin-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(fonts/inter-cyrillic-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "Inter Tight"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(fonts/inter-tight-latin-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter Tight"; font-style: normal; font-display: swap; font-weight: 100 900;
  src: url(fonts/inter-tight-cyrillic-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-display: swap; font-weight: 100 800;
  src: url(fonts/jetbrains-mono-latin-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "JetBrains Mono"; font-style: normal; font-display: swap; font-weight: 100 800;
  src: url(fonts/jetbrains-mono-cyrillic-wght-normal.woff2) format("woff2-variations");
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }

/* ---- Base: put .ko on <body> (or any themed container) ---- */
.ko, .ko [data-theme] { color: var(--ko-text); font-family: var(--ko-font-sans); }
.ko { background: var(--ko-bg); font-size: var(--ko-text-base); line-height: var(--ko-text-base-lh); -webkit-font-smoothing: antialiased; }
.ko [data-theme] { background: var(--ko-bg); }
.ko-mono, .ko code, .ko-id { font-family: var(--ko-font-mono); font-size: 0.92em; }
.ko-num { font-variant-numeric: tabular-nums; }
.ko-muted { color: var(--ko-text-muted); }
.ko-subtle { color: var(--ko-text-subtle); }
.ko-link { color: var(--ko-primary); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.ko-link:hover { color: var(--ko-primary-hover); }
.ko-eyebrow { font-size: 12px; font-weight: var(--ko-weight-semibold); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ko-text-muted); }
.ko :focus-visible { outline: 2px solid var(--ko-focus); outline-offset: 2px; }
.ko-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* Lucide icons: <svg class="ko-icon" viewBox="0 0 24 24" aria-hidden="true">…</svg>. Always 1.5px. */
.ko-icon { width: var(--ko-size-icon); height: var(--ko-size-icon); flex: none; fill: none; stroke: currentColor;
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.ko-icon * { vector-effect: non-scaling-stroke; }
.ko-icon--nav { width: var(--ko-size-icon-nav); height: var(--ko-size-icon-nav); }

/* Logo: <a class="ko-logo" href="/"><img src="/brand/assets/kobalt-lockup.svg" alt="Kobalt"></a> */
.ko-logo { display: inline-flex; align-items: center; }
.ko-logo img { display: block; height: 28px; width: auto; }
.ko-logo .ko-logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ko-logo .ko-logo-light { display: none; }
  :root:not([data-theme="light"]) .ko-logo .ko-logo-dark { display: block; }
}
[data-theme="dark"] .ko-logo .ko-logo-light { display: none; }
[data-theme="dark"] .ko-logo .ko-logo-dark { display: block; }

/* ---- Buttons ---- */
.ko-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: var(--ko-size-control);
  padding: 0 12px; border: 1px solid transparent; border-radius: var(--ko-radius-sm); background: none; color: inherit;
  font: var(--ko-weight-medium) var(--ko-text-base)/1 var(--ko-font-sans); white-space: nowrap; cursor: pointer; text-decoration: none;
  transition: background-color var(--ko-motion-fast) var(--ko-motion-ease-enter), border-color var(--ko-motion-fast) var(--ko-motion-ease-enter), color var(--ko-motion-fast) var(--ko-motion-ease-enter); }
.ko-btn--primary { background: var(--ko-primary); color: var(--ko-on-primary); }
.ko-btn--primary:hover { background: var(--ko-primary-hover); }
.ko-btn--secondary { background: var(--ko-surface); border-color: var(--ko-line-strong); color: var(--ko-text); }
.ko-btn--secondary:hover { background: var(--ko-hover); }
.ko-btn--ghost { color: var(--ko-primary); }
.ko-btn--ghost:hover { background: var(--ko-primary-soft); }
.ko-btn--danger { background: var(--ko-danger); color: var(--ko-on-danger); }
.ko-btn--danger:hover { background: var(--ko-danger-text); }
.ko-btn--sm { height: 28px; padding: 0 10px; font-size: var(--ko-text-sm); }
.ko-btn--lg { height: 40px; padding: 0 18px; font-size: 15px; }
.ko-btn--icon { width: var(--ko-size-control); padding: 0; }
.ko-btn:disabled, .ko-btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
.ko-btn .ko-icon { width: 16px; height: 16px; }
@media (pointer: coarse) { .ko-btn { height: var(--ko-size-control-touch); } }

/* ---- Fields ---- */
.ko-field { display: grid; gap: 4px; }
.ko-label { font-size: var(--ko-text-sm); font-weight: var(--ko-weight-medium); color: var(--ko-text); }
.ko-help { font-size: var(--ko-text-xs); line-height: var(--ko-text-xs-lh); color: var(--ko-text-muted); }
.ko-error { display: none; align-items: center; gap: 4px; font-size: var(--ko-text-xs); line-height: var(--ko-text-xs-lh); color: var(--ko-danger); }
.ko-field--error .ko-error { display: flex; }
.ko-input, .ko-select, .ko-textarea { width: 100%; min-width: 0; height: var(--ko-size-control); padding: 0 10px;
  border: 1px solid var(--ko-line-strong); border-radius: var(--ko-radius-sm); background: var(--ko-surface); color: var(--ko-text);
  font: var(--ko-text-base)/1.4 var(--ko-font-sans); transition: border-color var(--ko-motion-fast) var(--ko-motion-ease-enter); }
.ko-textarea { height: auto; min-height: 72px; padding: 6px 10px; resize: vertical; }
.ko-select { appearance: none; padding-right: 30px; background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 15px) 50%, calc(100% - 10px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.ko-input::placeholder, .ko-textarea::placeholder { color: var(--ko-text-subtle); }
.ko-input:hover, .ko-select:hover, .ko-textarea:hover { border-color: var(--ko-text-muted); }
.ko-input:focus-visible, .ko-select:focus-visible, .ko-textarea:focus-visible { border-color: var(--ko-focus); }
.ko-field--error .ko-input, .ko-input[aria-invalid="true"] { border-color: var(--ko-danger); }
.ko-input:disabled { background: var(--ko-surface-sunken); color: var(--ko-text-muted); cursor: not-allowed; }
.ko-input--mono { font-family: var(--ko-font-mono); font-size: 13px; }

/* Checkbox, radio, switch: native inputs, restyled. Wrap with <label class="ko-check">. */
.ko-check { display: inline-flex; align-items: center; gap: 8px; min-height: 24px; font-size: var(--ko-text-base); cursor: pointer; }
.ko-checkbox, .ko-radio { appearance: none; flex: none; width: 16px; height: 16px; margin: 0; display: grid; place-content: center;
  border: 1px solid var(--ko-line-strong); background: var(--ko-surface); cursor: pointer;
  transition: background-color var(--ko-motion-fast) var(--ko-motion-ease-enter), border-color var(--ko-motion-fast) var(--ko-motion-ease-enter); }
.ko-checkbox { border-radius: var(--ko-radius-xs); }
.ko-radio { border-radius: 50%; }
.ko-checkbox::before { content: ""; width: 9px; height: 5px; margin-top: -2px; border: solid var(--ko-on-primary); border-width: 0 0 2px 2px; transform: rotate(-45deg); opacity: 0; }
.ko-radio::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ko-on-primary); opacity: 0; }
.ko-checkbox:checked, .ko-radio:checked { background: var(--ko-primary); border-color: var(--ko-primary); }
.ko-checkbox:checked::before, .ko-radio:checked::before { opacity: 1; }
.ko-switch { appearance: none; flex: none; position: relative; width: 32px; height: 18px; margin: 0; border-radius: var(--ko-radius-full);
  background: var(--ko-line-strong); cursor: pointer; transition: background-color var(--ko-motion-fast) var(--ko-motion-ease-enter); }
.ko-switch::before { content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--ko-surface);
  transition: transform var(--ko-motion-fast) var(--ko-motion-ease-enter); }
.ko-switch:checked { background: var(--ko-primary); }
.ko-switch:checked::before { transform: translateX(14px); }

/* ---- Badges, type chips, references ---- */
.ko-badge { display: inline-flex; align-items: center; gap: 4px; height: 20px; padding: 0 6px; border-radius: var(--ko-radius-xs);
  font-size: var(--ko-text-xs); font-weight: var(--ko-weight-medium); line-height: 1; white-space: nowrap;
  background: var(--ko-surface-sunken); color: var(--ko-text-muted); }
.ko-badge .ko-icon { width: 12px; height: 12px; }
.ko-badge--primary { background: var(--ko-primary-soft); color: var(--ko-primary-soft-text); }
.ko-badge--success { background: var(--ko-success-soft); color: var(--ko-success); }
.ko-badge--warning { background: var(--ko-warning-soft); color: var(--ko-warning); }
.ko-badge--danger { background: var(--ko-danger-soft); color: var(--ko-danger-text); }
.ko-badge--info { background: var(--ko-info-soft); color: var(--ko-info); }
.ko-badge--agent { background: var(--ko-agent-soft); color: var(--ko-agent-text); }
.ko-badge--role { background: var(--ko-tone-iron-soft); color: var(--ko-tone-iron-text); }
.ko-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none; }

/* Type chip: a small element tile with a two-letter type symbol. Tones identify types, never status. */
.ko-type { display: inline-flex; align-items: center; gap: 6px; font-size: var(--ko-text-sm); color: var(--ko-text); white-space: nowrap; }
.ko-chip { display: inline-grid; place-items: center; flex: none; width: var(--ko-size-chip); height: var(--ko-size-chip); border-radius: var(--ko-radius-xs);
  font: var(--ko-weight-semibold) 11px/1 var(--ko-font-sans); letter-spacing: 0.01em;
  background: var(--tone-soft, var(--ko-tone-iron-soft)); color: var(--tone-text, var(--ko-tone-iron-text)); }
.ko-chip--lg { width: 28px; height: 28px; font-size: 13px; }
.ko-tone-cobalt { --tone-soft: var(--ko-tone-cobalt-soft); --tone-text: var(--ko-tone-cobalt-text); }
.ko-tone-cerulean { --tone-soft: var(--ko-tone-cerulean-soft); --tone-text: var(--ko-tone-cerulean-text); }
.ko-tone-green { --tone-soft: var(--ko-tone-green-soft); --tone-text: var(--ko-tone-green-text); }
.ko-tone-aureolin { --tone-soft: var(--ko-tone-aureolin-soft); --tone-text: var(--ko-tone-aureolin-text); }
.ko-tone-violet { --tone-soft: var(--ko-tone-violet-soft); --tone-text: var(--ko-tone-violet-text); }
.ko-tone-kiln { --tone-soft: var(--ko-tone-kiln-soft); --tone-text: var(--ko-tone-kiln-text); }
.ko-tone-clay { --tone-soft: var(--ko-tone-clay-soft); --tone-text: var(--ko-tone-clay-text); }
.ko-tone-iron { --tone-soft: var(--ko-tone-iron-soft); --tone-text: var(--ko-tone-iron-text); }

/* Object reference: <a class="ko-ref"><span class="ko-chip ko-tone-cobalt">De</span>Deal #42</a> */
.ko-ref { display: inline-flex; align-items: center; gap: 6px; color: var(--ko-text); text-decoration: none; font-weight: var(--ko-weight-medium); }
.ko-ref:hover .ko-ref-name, a.ko-ref:hover { text-decoration: underline; text-underline-offset: 3px; }
.ko-id { color: var(--ko-text-muted); font-size: 12px; font-weight: 400; letter-spacing: 0; }

/* ---- Actors: people are round, agents are square and always labelled ---- */
.ko-actor { display: inline-flex; align-items: center; gap: 8px; font-size: var(--ko-text-sm); color: var(--ko-text); min-width: 0; }
.ko-avatar { display: inline-grid; place-items: center; flex: none; width: 24px; height: 24px; border-radius: var(--ko-radius-full);
  background: var(--ko-avatar); color: var(--ko-text); font-size: 10px; font-weight: var(--ko-weight-semibold); overflow: hidden; }
.ko-avatar--agent { border-radius: var(--ko-radius-sm); background: var(--ko-agent-soft); color: var(--ko-agent-text); }
.ko-avatar--agent .ko-icon { width: 14px; height: 14px; }
.ko-avatar--lg { width: 32px; height: 32px; font-size: 12px; }
.ko-avatar--lg.ko-avatar--agent .ko-icon { width: 18px; height: 18px; }
.ko-agent-label { display: inline-flex; align-items: center; gap: 4px; height: 18px; padding: 0 5px; border-radius: var(--ko-radius-xs);
  background: var(--ko-agent-soft); color: var(--ko-agent-text); font-size: 11px; font-weight: var(--ko-weight-semibold); }
.ko-working { width: 6px; height: 6px; border-radius: 50%; background: var(--ko-agent); animation: ko-breathe var(--ko-motion-breathe) ease-in-out infinite alternate; }
@keyframes ko-breathe { from { opacity: 0.4; } to { opacity: 1; } }

/* ---- Cards and the object header (laid out like an element cell) ---- */
.ko-card { background: var(--ko-surface); border: 1px solid var(--ko-line); border-radius: var(--ko-radius-md); padding: var(--ko-space-4); }
.ko-card h4 { margin: 0 0 4px; font-size: var(--ko-heading-sm); line-height: var(--ko-heading-sm-lh); font-weight: var(--ko-weight-semibold); }
.ko-card p { margin: 0 0 12px; color: var(--ko-text-muted); }
.ko-object { display: grid; gap: 12px; }
.ko-object-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ko-object-name { margin: 0; font: var(--ko-weight-semibold) var(--ko-heading-md)/var(--ko-heading-md-lh) var(--ko-font-display); letter-spacing: -0.01em; }
.ko-attrs { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px 16px; margin: 0; padding-top: 12px; border-top: 1px solid var(--ko-line); }
.ko-attrs div { min-width: 0; }
.ko-attrs dt { font-size: var(--ko-text-xs); line-height: var(--ko-text-xs-lh); color: var(--ko-text-muted); display: flex; align-items: center; gap: 4px; }
.ko-attrs dd { margin: 2px 0 0; font-size: var(--ko-text-base); overflow-wrap: anywhere; }
.ko-attrs .ko-icon { width: 12px; height: 12px; }
.ko-inherited { color: var(--ko-text-subtle); font-size: 11px; display: inline-flex; align-items: center; gap: 2px; }
.ko-locked { color: var(--ko-text-muted); }

/* ---- Table: dense, app-style ---- */
.ko-table-wrap { overflow-x: auto; border: 1px solid var(--ko-line); border-radius: var(--ko-radius-md); background: var(--ko-surface); }
.ko-table { width: 100%; border-collapse: collapse; font-size: var(--ko-text-base); }
.ko-table th { height: 32px; padding: 0 12px; text-align: left; font-size: var(--ko-text-xs); font-weight: var(--ko-weight-medium); color: var(--ko-text-muted);
  background: var(--ko-surface-sunken); border-bottom: 1px solid var(--ko-line); white-space: nowrap; }
.ko-table td { height: var(--ko-size-row); padding: 0 12px; border-bottom: 1px solid var(--ko-line); white-space: nowrap; }
.ko-table tr:last-child td { border-bottom: 0; }
.ko-table tbody tr:hover { background: var(--ko-hover); }
.ko-table tbody tr[aria-selected="true"] { background: var(--ko-selected); }
.ko-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.ko-table--compact td { height: var(--ko-size-row-compact); }

/* ---- Tabs ---- */
.ko-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--ko-line); overflow-x: auto; scrollbar-width: none; }
.ko-tab { display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 10px; margin-bottom: -1px; border: 0; border-bottom: 2px solid transparent;
  background: none; color: var(--ko-text-muted); font: var(--ko-weight-medium) var(--ko-text-base)/1 var(--ko-font-sans); cursor: pointer; white-space: nowrap; }
.ko-tab:hover { color: var(--ko-text); }
.ko-tab[aria-selected="true"] { color: var(--ko-text); border-bottom-color: var(--ko-primary); }
.ko-tab .ko-badge { height: 18px; }

/* ---- Alerts and toasts: always an icon and words, never color alone ---- */
.ko-alert { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border-radius: var(--ko-radius-md); border: 1px solid transparent;
  font-size: var(--ko-text-base); background: var(--ko-surface-sunken); color: var(--ko-text); }
.ko-alert > .ko-icon { margin-top: 2px; }
.ko-alert b { font-weight: var(--ko-weight-semibold); }
.ko-alert p { margin: 2px 0 0; color: var(--ko-text-muted); }
.ko-alert .ko-alert-actions { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.ko-alert--info { background: var(--ko-info-soft); } .ko-alert--info > .ko-icon { color: var(--ko-info); }
.ko-alert--success { background: var(--ko-success-soft); } .ko-alert--success > .ko-icon { color: var(--ko-success); }
.ko-alert--warning { background: var(--ko-warning-soft); } .ko-alert--warning > .ko-icon { color: var(--ko-warning); }
.ko-alert--danger { background: var(--ko-danger-soft); } .ko-alert--danger > .ko-icon { color: var(--ko-danger-text); }
.ko-alert--info p, .ko-alert--success p, .ko-alert--warning p, .ko-alert--danger p { color: var(--ko-text); }
.ko-toast { display: inline-flex; align-items: center; gap: 10px; max-width: 100%; padding: 8px 8px 8px 12px; border-radius: var(--ko-radius-md);
  background: var(--ko-surface-raised); border: 1px solid var(--ko-line); box-shadow: var(--ko-shadow-1); font-size: var(--ko-text-base);
  animation: ko-enter var(--ko-motion-base) var(--ko-motion-ease-enter); }
.ko-toast > .ko-icon { color: var(--ko-success); }
@keyframes ko-enter { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---- Empty state ---- */
.ko-empty { display: grid; justify-items: center; gap: 8px; padding: 32px 16px; text-align: center; border: 1px dashed var(--ko-line-strong); border-radius: var(--ko-radius-md); }
.ko-empty > .ko-icon { width: 24px; height: 24px; color: var(--ko-text-subtle); }
.ko-empty b { font-size: var(--ko-text-lg); font-weight: var(--ko-weight-semibold); }
.ko-empty p { margin: 0 0 4px; max-width: 32em; color: var(--ko-text-muted); }

/* ---- Change set: a plan before it applies, a record after ---- */
.ko-changeset { border: 1px solid var(--ko-line); border-radius: var(--ko-radius-md); background: var(--ko-surface); overflow: hidden; }
.ko-changeset--proposed { border: 1px dashed var(--ko-agent); }
.ko-changeset-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--ko-line); }
.ko-changeset-title { display: flex; align-items: center; gap: 8px; font-weight: var(--ko-weight-semibold); min-width: 0; }
.ko-changeset-title .ko-icon { color: var(--ko-success); }
.ko-changeset-meta { font-size: var(--ko-text-xs); color: var(--ko-text-muted); }
.ko-changeset-actions { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px 12px; border-top: 1px solid var(--ko-line); }
.ko-changeset--rejected .ko-changeset-title { color: var(--ko-text-muted); text-decoration: line-through; }
.ko-changeset--rejected { background: var(--ko-surface-sunken); }
.ko-changes { list-style: none; margin: 0; padding: 0; }
.ko-change { display: grid; grid-template-columns: auto 1fr; gap: 4px 10px; align-items: center; padding: 8px 12px; border-bottom: 1px solid var(--ko-line); font-size: var(--ko-text-sm); }
.ko-change:last-child { border-bottom: 0; }
.ko-change-what { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; min-width: 0; }
.ko-change-diff { grid-column: 2; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.ko-old, .ko-new { font-family: var(--ko-font-mono); font-size: 12px; padding: 1px 5px; border-radius: var(--ko-radius-xs); overflow-wrap: anywhere; }
.ko-old { background: var(--ko-danger-soft); color: var(--ko-danger-text); text-decoration: line-through; }
.ko-new { background: var(--ko-success-soft); color: var(--ko-success); }
.ko-attr-name { color: var(--ko-text-muted); }

/* ---- History timeline ---- */
.ko-history { list-style: none; margin: 0; padding: 0; position: relative; }
.ko-history::before { content: ""; position: absolute; left: 11px; top: 12px; bottom: 12px; width: 1px; background: var(--ko-line); }
.ko-event { position: relative; display: grid; grid-template-columns: 24px 1fr; gap: 10px; padding: 8px 0; font-size: var(--ko-text-sm); }
.ko-event > .ko-avatar { position: relative; box-shadow: 0 0 0 3px var(--ko-surface); }
.ko-event-body { min-width: 0; }
.ko-event-line { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; }
.ko-event time { font-family: var(--ko-font-mono); font-size: 11px; color: var(--ko-text-subtle); }
.ko-event--agent .ko-event-body { padding-left: 10px; border-left: 2px solid var(--ko-agent); }
.ko-event details { margin-top: 4px; color: var(--ko-text-muted); }
.ko-event summary { cursor: pointer; color: var(--ko-agent-text); font-size: var(--ko-text-xs); font-weight: var(--ko-weight-medium); width: fit-content; }
.ko-event details p { margin: 4px 0 0; }

/* Changes land visibly: a brief tint on the changed field. */
.ko-changed { animation: ko-land var(--ko-motion-highlight) var(--ko-motion-ease-exit); }
.ko-changed--agent { animation-name: ko-land-agent; }
@keyframes ko-land { from { background-color: var(--ko-selected); } }
@keyframes ko-land-agent { from { background-color: var(--ko-agent-soft); } }

/* ---- Navigation: app sidebar ---- */
.ko-sidebar { width: 100%; max-width: var(--ko-size-sidebar); display: grid; gap: 2px; align-content: start; padding: 8px; background: var(--ko-surface); border: 1px solid var(--ko-line); border-radius: var(--ko-radius-md); }
.ko-nav-group { padding: 12px 8px 4px; font-size: 11px; font-weight: var(--ko-weight-semibold); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ko-text-muted); }
.ko-nav-item { display: flex; align-items: center; gap: 8px; height: 32px; padding: 0 8px; border-radius: var(--ko-radius-sm); color: var(--ko-text-muted);
  text-decoration: none; font-size: var(--ko-text-base); font-weight: var(--ko-weight-medium); }
.ko-nav-item:hover { background: var(--ko-hover); color: var(--ko-text); }
.ko-nav-item[aria-current="page"] { background: var(--ko-selected); color: var(--ko-primary); }
.ko-nav-item .ko-count { margin-left: auto; font-size: var(--ko-text-xs); font-variant-numeric: tabular-nums; color: var(--ko-text-muted); }

/* ---- Element tile: the specimen illustration (brand book and marketing only, not a logo) ---- */
.ko-element { position: relative; display: grid; grid-template-rows: auto 1fr auto; aspect-ratio: 1; width: 100%; max-width: 240px; padding: 14px 16px;
  border-radius: var(--ko-radius-lg); background: var(--ko-cobalt-600); color: #fff; }
.ko-element-num { font: 500 14px/1 var(--ko-font-mono); }
.ko-element-sym { align-self: center; font: 700 clamp(56px, 9vw, 88px)/1 var(--ko-font-display); letter-spacing: -0.02em; }
.ko-element-name { display: flex; justify-content: space-between; gap: 8px; font-size: 14px; font-weight: 500; }
.ko-element-name span:last-child { font-family: var(--ko-font-mono); font-weight: 400; }
.ko-element--soft { background: var(--ko-surface); color: var(--ko-text); border: 1px solid var(--ko-line); }
.ko-element--soft .ko-element-sym { color: var(--ko-primary); }

/* ---- Reduced motion: no movement, instant changes ---- */
@media (prefers-reduced-motion: reduce) {
  .ko *, .ko *::before, .ko *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; scroll-behavior: auto !important; }
  .ko-working { animation: none; opacity: 1; }
}