/* ============================================================
   CIRCUITMATE — bench instrument design system
   One status color drives the whole console: body[data-state]
   Type: Space Grotesk (display/UI) · JetBrains Mono (technical)
   ============================================================ */

@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/SpaceGrotesk.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/JetBrainsMono.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

:root {
  /* surfaces — obsidian */
  --bg: #090606;
  --panel: #110a0a;
  --panel-inset: #0d0808;
  --line: #2a1616;
  --line-strong: #401d1d;

  /* ink */
  --txt: #f5ecec;
  --dim: #a68a8a;
  --faint: #6b5555;

  /* signal colors — volcanic */
  --green: #ff4500;    /* input / ok / live     — magma       */
  --amber: #ff8c00;    /* agent voice / warning — molten gold */
  --cyan: #ff2a00;     /* thinking / tools      — superheated */
  --red: #d90429;      /* interrupt / error     — crimson     */

  /* type */
  --sans: "Space Grotesk", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", ui-monospace, "SF Mono", Consolas, monospace;

  /* rhythm — brutalist: sharp edges only */
  --gap: 16px;
  --radius: 0px;
  --radius-sm: 0px;

  /* easing */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);

  /* elevation */
  --shadow-panel: 0 0 0 1px rgba(255, 69, 0, 0.1), 0 10px 30px -10px rgba(0, 0, 0, 0.9);
}

/* state → signal color, consumed everywhere */
body[data-state="ready"]        { --state: #64748b; --state-glow: rgba(100,116,139,.14); }
body[data-state="connecting"]   { --state: var(--amber); --state-glow: rgba(251,191,36,.18); }
body[data-state="listening"]    { --state: var(--green); --state-glow: rgba(74,222,128,.20); }
body[data-state="transcribing"] { --state: var(--green); --state-glow: rgba(74,222,128,.22); }
body[data-state="thinking"]     { --state: var(--cyan);  --state-glow: rgba(56,189,248,.20); }
body[data-state="speaking"]     { --state: var(--amber); --state-glow: rgba(251,191,36,.22); }
body[data-state="interrupted"]  { --state: var(--red);   --state-glow: rgba(248,113,113,.24); }
body[data-state="error"]        { --state: var(--red);   --state-glow: rgba(248,113,113,.24); }

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 560px at 50% -200px, rgba(56,189,248,.05), transparent 62%),
    radial-gradient(900px 500px at 85% 110%, rgba(74,222,128,.025), transparent 60%),
    var(--bg);
  color: var(--txt);
  font: 400 13.5px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* harsh diagonal hatch — forge-floor texture, lit from the heat source below */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(135deg, var(--line-strong) 0 1px, transparent 1px 8px),
    repeating-linear-gradient(45deg, var(--line) 0 1px, transparent 1px 21px);
  mask-image: radial-gradient(ellipse 130% 95% at 50% 106%, #000 0%, rgba(0,0,0,.55) 30%, transparent 74%);
  -webkit-mask-image: radial-gradient(ellipse 130% 95% at 50% 106%, #000 0%, rgba(0,0,0,.55) 30%, transparent 74%);
  z-index: 0;
}

body > * { position: relative; z-index: 1; }

.mono { font-family: var(--mono); }
.dim { color: var(--dim); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 3px;
}

::selection { background: rgba(56,189,248,.28); }

/* ── demo banner ─────────────────────────────────────────── */
.demo-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 22px;
  background: repeating-linear-gradient(-45deg, rgba(251,191,36,.09) 0 14px, rgba(251,191,36,.035) 14px 28px);
  border-bottom: 1px solid rgba(251,191,36,.32);
  font-size: 12.5px;
}
.demo-banner-tag {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .14em;
  color: #0c0a03;
  background: var(--amber);
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
}
.demo-banner-text { color: #d9c68c; }
.demo-banner-text code { font-family: var(--mono); font-size: 11.5px; color: var(--amber); }
.demo-banner[hidden] { display: none; }

/* ── topbar ──────────────────────────────────────────────── */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(7,10,14,.82);
  backdrop-filter: blur(8px);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 20px; height: 20px; flex: none; }
.brand-mark-path { stroke: var(--green); stroke-width: 1.6; }
.brand-mark-dot { fill: var(--cyan); }
.brand-mark-tick { stroke: rgba(131,148,171,.6); stroke-width: 1.2; stroke-linecap: round; }
.brand-name { font-weight: 700; letter-spacing: .17em; font-size: 14.5px; }
.brand-sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--dim);
  border-left: 1px solid var(--line-strong);
  padding-left: 10px;
}
.top-status { display: flex; align-items: center; gap: 12px; min-width: 0; }
.top-hint { color: var(--faint); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.session-label {
  font-size: 10.5px;
  color: var(--faint);
  letter-spacing: .06em;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 2px 8px;
  background: var(--panel-inset);
}
.session-label.is-open {
  color: var(--green);
  border-color: rgba(74,222,128,.4);
  background: rgba(74,222,128,.06);
}

.badge {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  padding: 3px 10px;
  border-radius: 3px;
  border: 1px solid var(--line-strong);
  color: var(--dim);
  white-space: nowrap;
  transition: color .25s, border-color .25s, background-color .25s;
}
.badge.live {
  color: var(--green);
  border-color: rgba(74,222,128,.5);
  background: rgba(74,222,128,.07);
}
.badge.live::before {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 7px;
  vertical-align: 1px;
  box-shadow: 0 0 4px var(--green);
}
.badge.demo {
  color: var(--amber);
  border-color: rgba(251,191,36,.5);
  background: rgba(251,191,36,.08);
}
.badge.error {
  color: var(--red);
  border-color: rgba(248,113,113,.55);
  background: rgba(248,113,113,.08);
}
.log .err { color: var(--red); }

/* ── bench grid ──────────────────────────────────────────── */
.bench {
  display: grid;
  grid-template-columns: 302px minmax(0,1fr) 384px;
  grid-template-areas:
    "diag console transcript"
    "diag readout  transcript";
  grid-template-rows: auto 1fr;
  gap: var(--gap);
  padding: var(--gap) 22px 22px;
  max-width: 1600px;
  margin: 0 auto;
  align-items: stretch;
}
.diag       { grid-area: diag; }
.console    { grid-area: console; }
.readout    { grid-area: readout; }
.transcript { grid-area: transcript; }

/* ── panels ──────────────────────────────────────────────── */
.panel {
  background: linear-gradient(180deg, var(--panel), var(--panel-inset));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
  padding: 16px;
  min-width: 0;
}
.panel-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--dim);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.panel-title::before {
  content: "";
  width: 9px; height: 2px;
  background: var(--state, var(--dim));
  align-self: center;
  flex: none;
  transition: background .3s;
}
.panel-title-note { font-weight: 400; letter-spacing: .06em; text-transform: none; color: var(--faint); }
.panel-sub {
  margin: 18px 0 8px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--faint);
  border-top: 1px dashed var(--line);
  padding-top: 13px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.panel-sub .dim { letter-spacing: .04em; }

/* ── diagnostic readouts — spec sheet ────────────────────── */
.ro-stack { display: grid; gap: 8px; }
.ro {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 4px 10px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-strong);
  background: var(--panel-inset);
  border-radius: var(--radius-sm);
  padding: 9px 12px 9px 10px;
  transition: border-color .3s;
}
.ro-idx {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--faint);
  padding-top: 2px;
  transition: color .3s;
}
.ro-next { border-left-color: var(--state, var(--line-strong)); }
.ro-next .ro-idx { color: var(--state, var(--faint)); }
.ro-key {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--faint);
  margin-bottom: 3px;
}
.ro-val { font-size: 13.5px; line-height: 1.45; overflow-wrap: anywhere; }
.ro-val.is-dim { color: var(--faint); font-style: italic; font-weight: 300; }
.ro-chips { display: flex; flex-wrap: wrap; gap: 5px; }

.chip {
  font-family: var(--mono);
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid rgba(74,222,128,.38);
  color: var(--green);
  background: rgba(74,222,128,.06);
}
.chip-empty { border-color: var(--line); color: var(--faint); }

/* update flash — retriggered by JS */
.flash { animation: ro-flash .6s ease-out; }
@keyframes ro-flash {
  0%   { background: rgba(56,189,248,.14); border-color: var(--cyan); }
  100% { background: var(--panel-inset); }
}

/* ── progress ────────────────────────────────────────────── */
.progress-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}
.progress {
  flex: 1;
  height: 5px;
  background: var(--panel-inset);
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--state, var(--dim));
  transition: width .5s cubic-bezier(.2,.8,.2,1), background .3s;
}
.progress-text { font-size: 10px; color: var(--dim); letter-spacing: .08em; white-space: nowrap; }

/* ── checklist ───────────────────────────────────────────── */
.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 5px;
  max-height: 190px;
  overflow: auto;
}
.checklist li {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-size: 12.5px;
  padding: 7px 10px;
  background: var(--panel-inset);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color .15s, opacity .15s, transform .15s;
}
.checklist li:hover { border-color: var(--line-strong); }
.checklist li:not(.ck-empty):hover { transform: translateX(2px); }
.checklist li .ck-idx {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--cyan);
  flex: none;
}
.checklist li.done { opacity: .42; }
.checklist li.done .ck-txt { text-decoration: line-through; }
.checklist li.ck-empty { cursor: default; }

/* ── tool bus ────────────────────────────────────────────── */
.toolbus {
  display: grid;
  gap: 3px;
  font-size: 10.5px;
  max-height: 112px;
  overflow: auto;
}
.tb-row {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 3px 7px;
  border-radius: 3px;
  color: var(--dim);
  animation: tb-in .18s ease-out;
}
@keyframes tb-in { from { opacity: 0; transform: translateY(-3px); } }
.tb-row .tb-name { color: var(--txt); }
.tb-row .tb-info { margin-left: auto; color: var(--faint); }
.tb-led { width: 6px; height: 6px; border-radius: 50%; flex: none; align-self: center; }
.tb-led.run { background: var(--cyan); box-shadow: 0 0 4px var(--cyan); animation: tb-blink 1.6s ease-in-out infinite; }
.tb-led.ok  { background: var(--green); }
.tb-led.err { background: var(--red); }
@keyframes tb-blink { 50% { opacity: .25; } }

/* ── console stage — the open heart of the bench ─────────── */
.console {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 4px 2px;
}
.console-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}
.console-head .panel-title { margin: 0 0 4px; }
.console-line {
  margin: 0;
  font-size: clamp(17px, 1.5vw, 20px);
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--txt);
}
.console-line-accent { color: var(--dim); font-weight: 300; }

.status-readout {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  border: 1px solid var(--line-strong);
  background: var(--panel-inset);
  border-color: color-mix(in srgb, var(--state) 45%, var(--line));
  background-color: color-mix(in srgb, var(--state) 8%, transparent);
  padding: 7px 16px;
  border-radius: 6px;
  transition: border-color .3s, background-color .3s;
  white-space: nowrap;
  box-shadow: 0 0 14px -10px var(--state-glow);
}
.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--state);
  box-shadow: 0 0 8px var(--state-glow), 0 0 2px var(--state);
  transition: background .3s;
}
.status-text {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--state);
  transition: color .3s;
}
.status-sub {
  margin: 8px 0 14px;
  font-size: 13px;
  font-weight: 300;
  color: var(--dim);
  min-height: 20px;
}

/* ── scope — the instrument bezel ────────────────────────── */
.scope-wrap {
  position: relative;
  height: clamp(260px, 38vh, 400px);
  background:
    radial-gradient(120% 90% at 50% 42%, rgba(20,32,46,.5), transparent 70%),
    var(--panel-inset);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}
.scope-wrap::after {
  /* corner ticks — instrument bezel */
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--line-strong), var(--line-strong)) top left / 16px 1px,
    linear-gradient(var(--line-strong), var(--line-strong)) top left / 1px 16px,
    linear-gradient(var(--line-strong), var(--line-strong)) top right / 16px 1px,
    linear-gradient(var(--line-strong), var(--line-strong)) top right / 1px 16px,
    linear-gradient(var(--line-strong), var(--line-strong)) bottom left / 16px 1px,
    linear-gradient(var(--line-strong), var(--line-strong)) bottom left / 1px 16px,
    linear-gradient(var(--line-strong), var(--line-strong)) bottom right / 16px 1px,
    linear-gradient(var(--line-strong), var(--line-strong)) bottom right / 1px 16px;
  background-repeat: no-repeat;
}
#scope { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.scope-channels {
  position: absolute;
  top: 9px; left: 12px; right: 12px;
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  letter-spacing: .16em;
  pointer-events: none;
}
.ch { opacity: .45; transition: opacity .3s; }
.ch-in::before, .ch-out::before {
  content: "";
  display: inline-block;
  width: 10px; height: 2px;
  margin-right: 6px;
  vertical-align: 3px;
}
.ch-in::before { background: var(--green); }
.ch-out::before { background: var(--amber); }
.ch.active { opacity: 1; }

.scope-state {
  position: absolute;
  bottom: 9px; right: 12px;
  font-size: 9px;
  letter-spacing: .16em;
  color: var(--state);
  opacity: .55;
  transition: color .3s;
  pointer-events: none;
}

/* ── mic core — the signal instrument ───────────────────── */
.core {
  position: absolute;
  left: 50%; top: 50%;
  translate: -50% -50%;
  width: clamp(96px, 13vh, 128px);
  aspect-ratio: 1;
  border: none;
  border-radius: 50%;
  padding: 0;
  background: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.core:focus-visible { outline: none; }

.core-signal {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.core-body {
  position: absolute;
  inset: 11%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 30%, #172230, #0a0e14 74%);
  border: 1px solid var(--line-strong);
  border-color: color-mix(in srgb, var(--state) 55%, var(--line));
  box-shadow:
    0 0 0 1px rgba(0,0,0,.6),
    0 10px 26px -12px rgba(0,0,0,.75),
    0 0 calc(8px + var(--core-env, 0) * 30px) var(--state-glow);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.core:hover .core-body, .core:focus-visible .core-body {
  border-color: var(--state);
  box-shadow:
    0 0 0 1px rgba(0,0,0,.6),
    0 12px 30px -12px rgba(0,0,0,.8),
    0 0 calc(10px + var(--core-env, 0) * 34px) var(--state-glow);
}
.core:active .core-body { transform: scale(.97); }

.core-icon { width: 27px; height: 27px; }
.core-icon .ic-mic { fill: var(--state); transition: fill .3s var(--ease); }
.core-icon .ic-stem { stroke: var(--state); stroke-width: 1.8; stroke-linecap: round; transition: stroke .3s var(--ease); }
.core-label {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .24em;
  text-indent: .24em;
  color: var(--state);
  transition: color .3s var(--ease);
}

/* ── meters ──────────────────────────────────────────────── */
.meters { display: grid; gap: 7px; margin: 14px 0 12px; }
.meter { display: grid; grid-template-columns: 46px 1fr; align-items: center; gap: 10px; }
.meter-label { font-size: 9px; letter-spacing: .2em; color: var(--faint); }
.meter-bar {
  height: 8px;
  background: var(--panel-inset);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  width: 0%;
  transition: width .18s var(--ease-out);
  background-image: repeating-linear-gradient(90deg, currentColor 0 4px, transparent 4px 7px);
}
.meter-fill.in  { color: var(--green); background-color: rgba(74,222,128,.22); }
.meter-fill.out { color: var(--amber); background-color: rgba(251,191,36,.22); }

/* ── transport ───────────────────────────────────────────── */
.transport { display: flex; gap: 8px; }
.btn {
  font: 700 11px/1 var(--mono);
  letter-spacing: .14em;
  color: var(--txt);
  background: #131924;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  min-height: 38px;
  padding: 11px 15px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: border-color .15s, background .15s, transform .12s, color .15s;
}
.btn:hover:not(:disabled) { border-color: var(--dim); background: #1a2230; }
.btn:active:not(:disabled) { background: #161d29; }
.btn:disabled { opacity: .32; cursor: default; }
.btn .btn-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex: none; }
.btn.go { color: var(--green); border-color: rgba(74,222,128,.45); background: rgba(74,222,128,.06); }
.btn.go:hover:not(:disabled) { border-color: var(--green); background: rgba(74,222,128,.13); }
.btn.stop { color: var(--red); border-color: rgba(248,113,113,.45); background: rgba(248,113,113,.06); }
.btn.stop:hover:not(:disabled) { border-color: var(--red); background: rgba(248,113,113,.13); }
.btn.small { min-height: 34px; padding: 9px 13px; }
.btn:not(.go):not(.stop):hover:not(:disabled) { color: var(--cyan); border-color: rgba(56,189,248,.55); }

.transport-log {
  margin-top: 10px;
  font-size: 9.5px;
  letter-spacing: .05em;
  color: var(--faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── transcript ──────────────────────────────────────────── */
.transcript { display: flex; flex-direction: column; min-height: 0; }
.log {
  flex: 1;
  min-height: 220px;
  overflow-y: auto;
  background: var(--panel-inset);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* designed empty state — teaches the interaction */
.log-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 4px;
  padding: 24px 18px;
  min-height: 190px;
}
.log-empty-glyph { width: 64px; height: 24px; margin-bottom: 8px; }
.lg-wave { stroke: var(--faint); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.log-empty-title {
  margin: 0;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--dim);
}
.log-empty-sub { margin: 0; max-width: 300px; font-size: 12px; font-weight: 300; color: var(--faint); }

.tr {
  display: grid;
  grid-template-columns: 58px max-content 1fr;
  gap: 10px;
  align-items: baseline;
  padding: 5px 6px;
  border-radius: 3px;
  font-size: 13px;
}
.tr:hover { background: rgba(255,255,255,.025); }
.tr-time {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--faint);
  letter-spacing: .04em;
}
.tr-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: .12em;
}
.tr-text { overflow-wrap: anywhere; }
.tr.u .tr-tag { color: var(--green); }
.tr.u .tr-text { color: #c9ecdb; }
.tr.a .tr-tag { color: var(--amber); }
.tr.a .tr-text { color: #eadfc4; }
.tr.sys .tr-tag { color: var(--faint); }
.tr.sys .tr-text { color: var(--dim); font-size: 12px; }
.tr.tool .tr-tag { color: var(--cyan); }
.tr.tool .tr-text {
  color: #9ecfe8;
  font-family: var(--mono);
  font-size: 11px;
  white-space: pre-wrap;
}
.tr.demo .tr-tag { color: var(--amber); }
.tr.demo .tr-tag::after {
  content: "· DEMO";
  margin-left: 6px;
  color: var(--amber);
  background: rgba(251,191,36,.12);
  border: 1px solid rgba(251,191,36,.4);
  border-radius: 2px;
  padding: 0 4px;
  font-size: 8.5px;
}
.tr.partial { opacity: .6; }
.tr.partial .tr-text::after {
  content: "▌";
  color: var(--state);
  animation: caret 1s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }

.textrow { display: flex; gap: 8px; margin-top: 10px; }
.textrow input {
  flex: 1;
  min-width: 0;
  background: var(--panel-inset);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--txt);
  padding: 10px 13px;
  font: 400 13px var(--sans);
  transition: border-color .15s, background .15s;
}
.textrow input:hover { border-color: var(--line-strong); }
.textrow input:focus { outline: none; border-color: var(--cyan); }
.textrow input:disabled { opacity: .5; }
.textrow input::placeholder { color: var(--faint); }

/* ── tool readout cards ──────────────────────────────────── */
.cards {
  display: grid;
  gap: 8px;
  max-height: 300px;
  overflow-y: auto;
}
.cards-empty {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
}
.cards-empty-glyph { width: 48px; height: 16px; flex: none; }
.cg-path { stroke: var(--faint); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.cg-dot { fill: var(--faint); }
.cards-empty-text { margin: 0; font-size: 12px; font-weight: 300; color: var(--faint); }
.ro-card {
  background: var(--panel-inset);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.ro-card h4 {
  margin: 0;
  font: 700 10px var(--mono);
  letter-spacing: .14em;
  color: var(--cyan);
}
.ro-card.ok { border-left-color: var(--green); }
.ro-card.ok h4 { color: var(--green); }
.ro-card.warn { border-left-color: var(--red); }
.ro-card.warn h4 { color: var(--red); }
.ro-card pre {
  white-space: pre-wrap;
  margin: 7px 0 0;
  font: 11px/1.5 var(--mono);
  color: #a8b6c8;
}

/* ── footer ──────────────────────────────────────────────── */
.foot {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 13px;
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--faint);
  border-top: 1px solid var(--line);
}
.foot-sep { opacity: .5; }

.foot-link {
  font: inherit;
  color: var(--dim);
  background: none;
  border: none;
  border-bottom: 1px dotted var(--faint);
  padding: 0;
  cursor: pointer;
  letter-spacing: .06em;
}
.foot-link:hover { color: var(--amber); border-color: var(--amber); }

/* ── scrollbars ──────────────────────────────────────────── */
.log, .cards, .checklist, .toolbus { scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.log::-webkit-scrollbar, .cards::-webkit-scrollbar,
.checklist::-webkit-scrollbar, .toolbus::-webkit-scrollbar { width: 8px; }
.log::-webkit-scrollbar-thumb, .cards::-webkit-scrollbar-thumb,
.checklist::-webkit-scrollbar-thumb, .toolbus::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: 4px;
}

/* ── responsive ──────────────────────────────────────────── */
@media (max-width: 1180px) {
  .bench {
    grid-template-columns: minmax(0,1fr) minmax(0,1fr);
    grid-template-areas:
      "console console"
      "diag    transcript"
      "readout readout";
    grid-template-rows: auto auto auto;
    padding: var(--gap);
  }
  .top-hint { display: none; }
}

@media (max-width: 760px) {
  .bench {
    grid-template-columns: minmax(0,1fr);
    grid-template-areas:
      "console"
      "transcript"
      "diag"
      "readout";
  }
  .topbar { flex-wrap: wrap; padding: 10px 14px; }
  .brand-sub { display: none; }
  .console { padding: 2px 0; }
  .console-head { flex-direction: column; }
  .scope-wrap { height: clamp(210px, 42vw, 270px); }
  .core { width: 104px; }
  .tr { grid-template-columns: max-content 1fr; }
  .tr-time { display: none; }
  .transport { flex-wrap: wrap; }
  .transport .btn { flex: 1 1 auto; min-height: 48px; }
  .transport .btn:first-child { flex-basis: 100%; }
  .session-label { display: none; }
  .status-readout { align-self: flex-start; }
  .status-text { font-size: 15px; }
  .demo-banner { flex-wrap: wrap; gap: 6px 10px; }
}

/* ── reduced motion — polished static experience ─────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  body::before { background: none; }
}