/* lab.css — kernel: 4-zone grid, 6 states, 14 kernel components (UI plan §8.2).
   Stage-specific layouts live in .stage--<id> files (<=120 lines each), not here. */

[data-lab] {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  background: var(--stage-bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--pane-pad);
  min-height: 70vh;
  position: relative;
  /* Full-bleed (LUẬT 6a) means "dramatically wider than the 68ch prose column
     above it", not "unbounded" — past ~1600px a table/log zone just becomes
     sparse and unreadable instead of more full-bleed. */
  max-width: 1600px;
  margin-inline: auto;
}
[data-lab][data-stage-bg="deep"] { background: var(--stage-bg-deep); }
[data-lab][data-stage-bg="raised"] { background: var(--stage-bg-raised); }
[data-lab][data-stage-bg="void"] { background: var(--stage-bg-void); }
[data-lab][data-stage-bg="ledger"] { background: var(--stage-bg-ledger); }

/* Schematic-grid texture, blended into the stage's own background (behind
   the zones, in front of nothing) so the live stage reads as the same
   instrument-panel system as the landing/catalog cards. */
[data-lab]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  border-radius: inherit;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
}

[data-zone] {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: var(--pane-pad);
  min-height: 3rem;
}
/* Verdict is the answer the other 3 zones build up to — give it a visual anchor. */
[data-zone="verdict"] { border-color: var(--accent-line); border-left-width: 3px; }
[data-zone="control"] { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }
[data-zone="control"] > .lab-state-banner { margin-left: auto; }
[data-zone]::before {
  content: attr(data-zone);
  display: block;
  font: var(--fs-label) / 1 var(--font-sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: var(--sp-2);
}

/* ---- State machine (StateBanner + idle/running/settled/compare/error) --- */
.lab-state-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font: var(--fs-label) / 1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-mute);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.5em 0.9em;
}
.lab-state-banner::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
[data-lab][data-state="running"] .lab-state-banner { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); }
[data-lab][data-state="settled"] .lab-state-banner,
[data-lab][data-state="compare"] .lab-state-banner { color: var(--sig-ok); border-color: var(--sig-ok); }
[data-lab][data-state="idle"] [data-zone="response"],
[data-lab][data-state="idle"] [data-zone="internals"] {
  color: var(--text-mute);
  font-style: italic;
}
[data-lab][data-state="running"] .lab-run { box-shadow: 0 0 0 3px var(--accent-soft), 0 8px 20px -8px var(--accent); }
[data-lab][data-state="error"] [data-zone="response"] { border-color: var(--sig-bad); }
[data-lab][data-state="error"] .lab-error { color: var(--sig-bad); }
[data-lab][data-state="error"] .lab-error::before { content: "✕ "; }

/* Readout / VerdictBar before->after, only meaningful once both modes ran */
.lab-readout { display: flex; align-items: baseline; gap: var(--sp-2); min-height: 1.9rem; }
.lab-readout__label { font: var(--fs-label) / 1 var(--font-sans); color: var(--text-mute); min-width: 7ch; }
.lab-readout__before,
.lab-readout__after {
  font: var(--fs-readout) / 1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  min-width: 6ch;
  text-align: right;
}
.lab-readout__before { color: var(--text-mute); }
.lab-readout__arrow { color: var(--text-mute); }
[data-lab]:not([data-state="compare"]) .lab-readout__before,
[data-lab]:not([data-state="compare"]) .lab-readout__arrow {
  display: none;
}

/* ---- ModeSwitch — RULE 3: naive is neutral slate, never red. Pill chrome
   (2026-11-01 action-card revamp) replaces the rectangular 3px-radius one. */
.lab-switch {
  display: inline-flex;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  background: var(--ink);
  font: var(--fs-control) / 1 var(--font-sans);
  cursor: pointer;
}
.lab-switch span { padding: 0.5em 1em; border-radius: 999px; color: var(--text-mute); }
.lab-switch[aria-checked="false"] span:first-child,
.lab-switch[aria-checked="true"] span:last-child {
  background: var(--accent);
  color: var(--accent-ink);
}

/* ---- RunButton / ResetButton / SimClock ---- */
.lab-run,
.lab-reset,
.lab-sim-clock {
  font: var(--fs-control) / 1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.6em 1.2em;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: none;
  color: var(--text-body);
  cursor: pointer;
  min-height: 40px;
  min-width: 40px;
}
/* The one primary action in the zone — filled + lifted, so it reads as "press this first". */
.lab-run {
  border: none;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  box-shadow: 0 8px 20px -8px var(--accent);
}
button:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }

/* ---- Dial (range control) ---- */
.lab-dial-value {
  font: var(--fs-mono) / 1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text-head);
  min-width: 4ch;
}
input[type="range"] { accent-color: var(--accent); min-height: 40px; }

/* ---- PayloadChip (Attacker Console labs) ---- */
.lab-payload-chip {
  display: inline-flex;
  font: var(--fs-mono-sm) / 1 var(--font-mono);
  border: 1px dashed var(--sig-bad);
  color: var(--sig-bad);
  border-radius: var(--radius);
  padding: 0.3em 0.6em;
  cursor: pointer;
  background: none;
}

/* ---- ConsoleField (text-input chrome shared by any lab with a free-text
   control — Attacker Console's email field, no-index-no-mercy's search). ---- */
.lab-console-field {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 0.5em 0.75em;
  font: var(--fs-mono-sm) / 1 var(--font-mono);
  transition: border-color 150ms steps(2), box-shadow 150ms steps(2);
}
.lab-console-field:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.lab-console-field__prefix { color: var(--sig-ok); user-select: none; }
.lab-console-field input { font: inherit; background: none; color: var(--text-head); border: none; outline: none; min-width: 22ch; }

/* ---- ResponseCard ---- */
.lab-response-card { border: 1px solid var(--border); border-radius: var(--radius); padding: var(--pane-pad); }
.lab-response-card__status {
  font: var(--fs-mono) / 1 var(--font-mono);
  font-variant-numeric: tabular-nums;
}
.lab-response-card__status[data-sig="ok"] { color: var(--sig-ok); }
.lab-response-card__status[data-sig="warn"] { color: var(--sig-warn); }
.lab-response-card__status[data-sig="bad"] { color: var(--sig-bad); }
.lab-response-card__body {
  font: var(--fs-mono-sm) / 1.5 var(--font-mono);
  color: var(--text-body);
  white-space: pre-wrap;
  margin-top: var(--sp-2);
}

/* ---- LogStream ---- */
.lab-log__header {
  font: var(--fs-label) / 1 var(--font-mono);
  color: var(--text-mute);
  margin: 0 0 var(--sp-2);
}
.lab-log__list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 42vh;
  overflow-y: auto;
  font: var(--fs-mono-sm) / 1.35 var(--font-mono);
}
.lab-log__line {
  padding: 0.15em 0.3em;
  border-bottom: 1px solid var(--border);
  color: var(--sig-info);
}
.lab-log__list:hover .lab-log__line { animation-play-state: paused; }
.lab-log__line:last-child { border-left: 2px solid var(--sig-focus); }

/* ---- ModelNote / SafetyLine ---- */
.lab-model-note {
  font: var(--fs-label) / 1.4 var(--font-sans);
  color: var(--text-mute);
}
.lab-model-note summary { cursor: pointer; color: var(--accent); }
.lab-model-note p { margin: var(--sp-2) 0 0; font-family: var(--font-mono); font-size: var(--fs-mono-sm); }
.lab-safety-line {
  font: var(--fs-label) / 1.4 var(--font-sans);
  color: var(--sig-warn);
  border: 1px dashed var(--sig-warn);
  border-radius: var(--radius);
  padding: var(--sp-2);
}

/* ---- RowTable (used by n-plus-one-query; kept generic for the next lab that grows a table) ---- */
.lab-row-table { width: 100%; border-collapse: collapse; font: var(--fs-mono-sm) / 1.5 var(--font-mono); }
.lab-row-table th {
  text-align: left;
  font: var(--fs-label) / 1 var(--font-sans);
  text-transform: uppercase;
  color: var(--text-mute);
  border-bottom: 1px solid var(--border);
  padding: 0.3em 0.5em;
}
.lab-row-table td { padding: 0.3em 0.5em; border-bottom: 1px solid var(--border); color: var(--text-body); }
.lab-row-table tr[data-sig="ghost"] td { color: var(--sig-ghost); }

/* ---- ProvenanceTag ---- */
.provenance-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font: var(--fs-label) / 1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-mute);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.3em 0.8em;
}
.provenance-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none; }

/* ---- noscript fallback — never a blank frame ---- */
[data-lab] noscript { display: block; border: 1px solid var(--border); padding: var(--pane-pad); }

/* Kernel modules (lab-detail-component-system.md §3). DataTable/FlowDiagram
   use the dark chassis tokens, not the mockup's light palette (§15 amendment);
   LogTerminal keeps its own fixed phosphor-black world regardless. */

/* ---- DataTable (response) — ported from candidates-admin.html ---- */
.rc {
  --rc-panel: var(--panel-raised); --rc-ink: var(--text-head); --rc-ink-soft: var(--text-body); --rc-ink-faint: var(--text-mute);
  --rc-paper: var(--panel); --rc-line: var(--border); --rc-line-strong: var(--border-strong);
  --rc-accent-soft: color-mix(in srgb, var(--accent) 18%, var(--panel-raised));
  --rc-ok-bg: color-mix(in srgb, var(--sig-ok) 18%, var(--panel-raised)); --rc-ok-fg: var(--sig-ok);
  --rc-info-bg: color-mix(in srgb, var(--sig-info) 18%, var(--panel-raised)); --rc-info-fg: var(--sig-info);
  --rc-warn-bg: color-mix(in srgb, var(--sig-warn) 18%, var(--panel-raised)); --rc-warn-fg: var(--sig-warn);
  background: var(--rc-panel); color: var(--rc-ink); font: 400 14px/1.5 var(--font-sans);
  border-radius: 10px; border: 1px solid var(--rc-line-strong); overflow: hidden;
}
.rc-head { display: flex; align-items: baseline; gap: .6rem; padding: .75rem 1rem; border-bottom: 1px solid var(--rc-line); }
.rc-status { font: 700 13px var(--font-mono); color: var(--rc-ok-fg); }
.rc-ms { font: 500 12px var(--font-mono); color: var(--rc-ink-faint); font-variant-numeric: tabular-nums; }
.rc-scroll { overflow-x: auto; }
table.rc-table { width: 100%; border-collapse: collapse; min-width: 480px; }
table.rc-table th {
  text-align: left; font: 600 .7rem/1 var(--font-sans); text-transform: uppercase; letter-spacing: .04em;
  color: var(--rc-ink-faint); padding: .75em 1em; border-bottom: 1px solid var(--rc-line); background: var(--rc-paper);
  white-space: nowrap; cursor: pointer; user-select: none;
}
table.rc-table th .arrow { margin-left: .3em; opacity: .35; }
table.rc-table th[aria-sort] .arrow { opacity: 1; color: var(--accent); }
table.rc-table td { padding: .6em 1em; border-bottom: 1px solid var(--rc-line); font-size: .85rem; vertical-align: middle; }
table.rc-table tbody tr:last-child td { border-bottom: none; }
table.rc-table tr[data-ghost] td { color: var(--rc-ink-faint); }
.rc-name-cell { display: flex; align-items: center; gap: .7em; }
.rc-avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--rc-accent-soft); color: var(--accent); flex: none; display: inline-flex; align-items: center; justify-content: center; font: 600 .65rem/1 var(--font-sans); }
.rc-cand-name { font-weight: 600; }
.rc-pill { display: inline-flex; font: 600 .66rem/1 var(--font-sans); text-transform: uppercase; letter-spacing: .03em; padding: .3em .65em; border-radius: 999px; }
.rc-pill[data-k="fresh"] { background: var(--rc-info-bg); color: var(--rc-info-fg); }
.rc-pill[data-k="cached"] { background: var(--rc-ok-bg); color: var(--rc-ok-fg); }
.rc-pill[data-k="slow"] { background: var(--rc-warn-bg); color: var(--rc-warn-fg); }
.rc-sub { font: 400 .78rem/1 var(--font-mono); color: var(--rc-ink-soft); font-variant-numeric: tabular-nums; }
.rc-skel-bar { height: 10px; border-radius: 4px; background: linear-gradient(90deg, var(--rc-line) 25%, var(--rc-line-strong) 37%, var(--rc-line) 63%); background-size: 400% 100%; animation: rc-shimmer 1.2s ease-in-out infinite; }
@keyframes rc-shimmer { to { background-position: 0 0; } }
@media (prefers-reduced-motion: reduce) { .rc-skel-bar { animation: none; opacity: .6; } }

/* ---- FlowDiagram (internals, block 1) — ported from request-architecture.html ---- */
.fd {
  --fd-panel: var(--panel-raised); --fd-paper: var(--panel); --fd-ink: var(--text-head); --fd-ink-faint: var(--text-mute);
  --fd-line: var(--border); --fd-line-strong: var(--border-strong);
  --fd-accent-soft: color-mix(in srgb, var(--accent) 22%, var(--panel-raised));
  background: var(--fd-panel); border: 1px solid var(--fd-line-strong); border-radius: 12px; padding: 1.1rem;
}
.fd-title { font: 600 .78rem/1 var(--font-sans); color: var(--fd-ink-faint); margin: 0 0 .8rem; }
.fd-scroll { overflow-x: auto; display: flex; justify-content: center; }
.fd-board { position: relative; flex: none; }
.fd-board svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.fd-edge { stroke: var(--fd-line-strong); stroke-width: 2; fill: none; }
.fd-edge[data-active="true"] { stroke: var(--accent); }
.fd-edge[data-sig="bad"] { stroke: var(--sig-bad); stroke-dasharray: 4 3; }
.fd-edge-label { fill: var(--fd-ink-faint); font: 600 10px var(--font-mono); }
.fd-edge-label.active { fill: var(--accent); }
.fd-edge-label[data-sig="bad"] { fill: var(--sig-bad); }
.fd-node {
  position: absolute; background: var(--fd-panel); border: 1px solid var(--fd-line-strong); border-radius: 10px;
  padding: .6rem .75rem; display: flex; gap: .55em; align-items: flex-start;
  transition: border-color 150ms steps(2), box-shadow 150ms steps(2);
}
.fd-node[data-active="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px var(--fd-accent-soft); }
/* Ambient idle loop — a resting diagram reads as a live machine, not a dead
   outline; a real run (data-active) takes over instantly, see flow-diagram.js. */
@keyframes fd-ambient-node { 0%, 84%, 100% { border-color: var(--fd-line-strong); box-shadow: none; } 4%, 10% { border-color: var(--accent); box-shadow: 0 0 0 3px var(--fd-accent-soft); } }
@keyframes fd-ambient-edge { 0%, 84%, 100% { stroke: var(--fd-line-strong); } 4%, 10% { stroke: var(--accent); } }
.fd[data-idle-loop] .fd-node { animation: fd-ambient-node 7s ease-in-out infinite; }
.fd[data-idle-loop] .fd-edge { animation: fd-ambient-edge 7s ease-in-out infinite; }
.fd[data-idle-loop] .fd-node:nth-of-type(2) { animation-delay: .8s; }
.fd[data-idle-loop] .fd-edge:nth-of-type(1) { animation-delay: .4s; }
.fd[data-idle-loop] .fd-node:nth-of-type(3) { animation-delay: 1.6s; }
.fd[data-idle-loop] .fd-edge:nth-of-type(2) { animation-delay: 1.2s; }
.fd[data-idle-loop] .fd-node:nth-of-type(4) { animation-delay: 2.4s; }
.fd[data-idle-loop] .fd-edge:nth-of-type(3) { animation-delay: 2s; }
.fd-icon { width: 28px; height: 28px; border-radius: 7px; background: var(--fd-paper); border: 1px solid var(--fd-line); flex: none; display: flex; align-items: center; justify-content: center; }
.fd-node .title { font: 700 .78rem/1.2 var(--font-sans); color: var(--fd-ink); }
.fd #fdArrow path { fill: var(--fd-ink-faint); }
.fd #fdArrowActive path { fill: var(--accent); }
.fd-node .role { font: 500 .6rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .05em; color: var(--fd-ink-faint); margin-top: .15em; }
.fd-badge {
  position: absolute; top: -9px; right: -9px; background: var(--accent); color: #fff; font: 700 .62rem/1 var(--font-mono);
  padding: .2em .45em; border-radius: 999px; min-width: 1.6em; text-align: center; opacity: 0; transform: scale(.8);
  transition: opacity 120ms steps(2), transform 120ms steps(2); font-variant-numeric: tabular-nums;
}
.fd-badge.show { opacity: 1; transform: scale(1); }
.fd-icon-browser { display: flex; gap: 3px; }
.fd-icon-browser span { width: 5px; height: 5px; border-radius: 50%; background: var(--fd-ink-faint); }
.fd-icon-server { width: 13px; height: 13px; border: 2px solid var(--fd-ink-faint); border-radius: 4px; position: relative; }
.fd-icon-server::after { content: ""; position: absolute; inset: 3px; border-radius: 2px; background: var(--fd-ink-faint); }
.fd-icon-table span { display: block; width: 15px; height: 2.5px; background: var(--fd-ink-faint); border-radius: 1px; margin-bottom: 2.5px; }
.fd-icon-table span:last-child { margin-bottom: 0; width: 10px; }
@media (prefers-reduced-motion: reduce) { .fd-node, .fd-badge { transition-duration: .01ms; } }

/* ---- LogTerminal (internals, block 2) — ported from server-terminal.html; fixed phosphor-black, never themed ---- */
.lt {
  --lt-bg: #0b0d0c; --lt-chrome: #15181a; --lt-line: rgba(57, 255, 133, .14);
  --lt-fg: #d8f5df; --lt-dim: #3a8a56; --lt-ok: #39ff85; --lt-warn: #ffd166; --lt-bad: #ff5c6c;
  background: var(--lt-bg); border-radius: 12px; overflow: hidden; box-shadow: 0 18px 40px -20px rgba(0, 0, 0, .5);
}
.lt-chrome { background: var(--lt-chrome); display: flex; align-items: center; gap: .6em; padding: .55rem .9rem; border-bottom: 1px solid var(--lt-line); }
.lt-dot { width: 9px; height: 9px; border-radius: 50%; background: #3a3e3a; }
.lt-tab { margin-left: .5em; font: 600 .7rem/1 var(--font-mono); color: #9fb8a7; letter-spacing: .02em; }
.lt-live { margin-left: auto; display: inline-flex; align-items: center; gap: .4em; font: 600 .64rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; color: var(--lt-dim); }
.lt-live .led { width: 6px; height: 6px; border-radius: 50%; background: var(--lt-dim); }
.lt-live[data-state="live"] .led { background: var(--lt-ok); box-shadow: 0 0 6px rgba(57, 255, 133, .7); }
.lt-live[data-state="live"] { color: var(--lt-ok); }
.lt-body { position: relative; }
.lt-scroll { height: 220px; overflow-y: auto; padding: .85rem 1rem 1rem; font: 400 .78rem/1.6 var(--font-mono); color: var(--lt-fg); }
.lt-scroll .line { display: flex; gap: .6em; white-space: pre; padding: .05em 0; }
.lt-scroll .line .ts { color: var(--lt-dim); flex: none; font-variant-numeric: tabular-nums; }
.lt-scroll .line .method { color: var(--lt-ok); flex: none; font-weight: 600; }
.lt-scroll .line .path { color: var(--lt-fg); flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.lt-scroll .line .status { flex: none; font-weight: 600; }
.lt-scroll .line .dur { color: var(--lt-dim); flex: none; font-variant-numeric: tabular-nums; }
.lt-scroll .line[data-status="ok"] .status { color: var(--lt-ok); }
.lt-scroll .line[data-status="warn"] .status { color: var(--lt-warn); }
.lt-scroll .line[data-status="bad"] .status { color: var(--lt-bad); }
.lt-scroll .line.highlight { animation: lt-line-fade 650ms ease-out forwards; }
.lt-prompt { display: flex; align-items: center; gap: .5em; color: var(--lt-dim); margin-top: .3em; }
.lt-caret { width: 7px; height: 14px; background: var(--lt-ok); animation: lt-blink 1.1s steps(1) infinite; }
@keyframes lt-blink { 50% { opacity: 0; } }
@keyframes lt-line-fade { from { background: rgba(57, 255, 133, .18); } to { background: transparent; } }
@media (prefers-reduced-motion: reduce) { .lt-caret { animation: none; } }
.lt-jump {
  position: absolute; bottom: 12px; right: 14px; border: 1px solid var(--lt-line); background: var(--lt-chrome);
  color: var(--lt-ok); font: 600 .66rem/1 var(--font-mono); padding: .4em .8em; border-radius: 999px; cursor: pointer;
  opacity: 0; transform: translateY(6px); transition: opacity 150ms steps(2), transform 150ms steps(2);
}
.lt-jump.show { opacity: 1; transform: translateY(0); }
.lt-readonly { display: flex; align-items: center; gap: .5em; padding: .55rem 1rem; border-top: 1px solid var(--lt-line); background: var(--lt-chrome); }
.lt-readonly .badge { font: 600 .6rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; color: #9fb8a7; border: 1px solid var(--lt-line); padding: .2em .5em; border-radius: 4px; }
.lt-readonly .msg { font: 400 .72rem/1 var(--font-mono); color: #7f9789; }

/* ---- Mobile (360px) — LUẬT 11: stage drawn mobile-first already above ---- */
@media (min-width: 720px) {
  [data-zone="control"] { grid-column: 1 / -1; }
}

/* ---- Reduced motion: stepped reveal, never remove content (LUẬT 17) ---- */
@media (prefers-reduced-motion: reduce) {
  [data-lab] *,
  [data-lab] *::before,
  [data-lab] *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}