/* Tuning Bench (Craft page). HUD-style spec drift estimator. Self-contained. */
.tb {
  --tb-bg: #09090b;
  --tb-panel: rgba(24, 24, 27, 0.86);
  --tb-line: #27272a;
  --tb-text: #f4f4f5;
  --tb-mute: #a1a1aa;
  --tb-cyan: #22d3ee;
  --tb-cyan-soft: #a5f3fc;
  --tb-green: #34d399;
  --tb-green-soft: #a7f3d0;
  --tb-amber: #fbbf24;
  --tb-red: #f87171;
  --tb-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  position: relative;
  overflow: hidden;
  padding: 22px;
  border: 1px solid rgba(34, 211, 238, 0.5);
  background:
    linear-gradient(rgba(34, 211, 238, 0.06) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(90deg, rgba(34, 211, 238, 0.06) 1px, transparent 1px) 0 0 / 28px 28px,
    var(--tb-bg);
  color: var(--tb-text);
  font-size: 0.9rem;
  line-height: 1.45;
  box-shadow: 0 0 40px -18px rgba(34, 211, 238, 0.8);
  transition: box-shadow 300ms ease, border-color 300ms ease;
}

.tb.is-pulsing {
  border-color: var(--tb-green-soft);
  box-shadow: 0 0 48px -6px rgba(52, 211, 153, 0.9);
}

.tb [hidden] { display: none !important; }
.tb p { margin: 0; }

.tb-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(34, 211, 238, 0.3);
}

.tb-kicker,
.tb-label,
.tb legend,
.tb-online,
.tb-badge {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.tb-kicker { color: var(--tb-green-soft); }

.tb-title {
  font-family: var(--font-body);
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #cffafe;
  text-shadow: 0 0 14px rgba(34, 211, 238, 0.6);
}

.tb-online {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--tb-mute);
}

.tb-online i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--tb-green);
  box-shadow: 0 0 10px 2px rgba(52, 211, 153, 0.8);
}

.tb-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tb-panel {
  position: relative;
  display: grid;
  gap: 18px;
  align-content: start;
  padding: 18px;
  border: 1px solid rgba(34, 211, 238, 0.3);
  background: var(--tb-panel);
  box-shadow: 0 0 24px -12px rgba(34, 211, 238, 0.6);
}

.tb-panel::before,
.tb-panel::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 0 solid var(--tb-cyan-soft);
}

.tb-panel::before { top: -1px; left: -1px; border-top-width: 2px; border-left-width: 2px; }
.tb-panel::after { right: -1px; bottom: -1px; border-right-width: 2px; border-bottom-width: 2px; }

.tb-panel h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--tb-cyan-soft);
}

.tb fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.tb legend, .tb-label { display: block; padding: 0; color: #67e8f9; }

.tb-toggle {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.tb-toggle button {
  display: grid;
  gap: 2px;
  min-height: 52px;
  padding: 8px 12px;
  border: 1px solid #3f3f46;
  background: var(--tb-bg);
  color: #d4d4d8;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 150ms linear, background-color 150ms linear, box-shadow 150ms linear, transform 120ms ease;
}

.tb-toggle button strong {
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.tb-toggle button small { font-size: 0.72rem; color: var(--tb-mute); }
.tb-toggle button:hover { border-color: rgba(34, 211, 238, 0.6); }
.tb-toggle button:active { transform: scale(0.98); }

.tb-toggle button[aria-pressed="true"] {
  border-color: var(--tb-green);
  background: rgba(52, 211, 153, 0.1);
  color: var(--tb-green-soft);
  box-shadow: 0 0 18px -4px rgba(52, 211, 153, 0.8);
}

.tb button:focus-visible,
.tb input:focus-visible {
  outline: 2px solid var(--tb-cyan-soft);
  outline-offset: 2px;
  border-radius: 0;
}

.tb-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.tb-value {
  font-family: var(--tb-mono);
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--tb-green-soft);
  text-shadow: 0 0 10px rgba(52, 211, 153, 0.7);
}

.tb-value small { font-size: 0.72rem; opacity: 0.8; }

.tb input[type="range"] {
  display: block;
  width: 100%;
  height: 44px;
  margin: 2px 0 0;
  accent-color: var(--tb-green);
  cursor: ew-resize;
}

.tb input[type="number"] {
  display: block;
  width: 100%;
  height: 44px;
  margin-top: 8px;
  padding: 0 12px;
  border: 1px solid #3f3f46;
  border-radius: 0;
  background: var(--tb-bg);
  color: var(--tb-green-soft);
  font-family: var(--tb-mono);
  font-size: 1.1rem;
  font-weight: 700;
}

.tb-badge { letter-spacing: 0.14em; color: var(--tb-mute); }
.tb-badge.is-on { color: var(--tb-green-soft); }
.tb-help { margin-top: 4px !important; font-size: 0.72rem; color: var(--tb-mute); }

.tb-gauge-title {
  text-align: center;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #cffafe;
}

.tb-gauge-sub {
  margin-top: 2px !important;
  text-align: center;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tb-mute);
}

.tb-gauge {
  --tb-tone: var(--tb-green);
  position: relative;
  width: 100%;
  max-width: 230px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.tb-gauge[data-tone="warn"] { --tb-tone: var(--tb-amber); }
.tb-gauge[data-tone="alert"] { --tb-tone: var(--tb-red); }
.tb-gauge svg { display: block; width: 100%; height: 100%; }

.tb-ring {
  fill: none;
  stroke: var(--tb-tone);
  stroke-width: 10;
  filter: drop-shadow(0 0 6px var(--tb-tone));
  transition: stroke-dashoffset 300ms cubic-bezier(0.22, 1, 0.36, 1), stroke 150ms linear;
}

.tb-gauge-read {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}

.tb-gauge-big {
  font-family: var(--tb-mono);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--tb-tone);
  text-shadow: 0 0 18px var(--tb-tone);
}

.tb-gauge-small {
  margin-top: 6px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tb-mute);
}

.tb-ping {
  position: absolute;
  inset: 12px;
  border: 2px solid var(--tb-cyan-soft);
  border-radius: 50%;
  opacity: 0;
  pointer-events: none;
}

.tb.is-pulsing .tb-ping { animation: tb-ping 0.9s cubic-bezier(0, 0, 0.2, 1); }

@keyframes tb-ping {
  from { transform: scale(0.85); opacity: 0.9; }
  to { transform: scale(1.35); opacity: 0; }
}

.tb-cards { display: grid; gap: 10px; }

.tb-card {
  padding: 12px;
  border: 1px solid var(--tb-cyan-soft);
  background: rgba(34, 211, 238, 0.1);
  box-shadow: 0 0 18px -6px rgba(34, 211, 238, 0.9);
}

.tb-card strong {
  display: block;
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #cffafe;
}

.tb-card > span { display: block; margin-top: 4px; font-size: 0.78rem; color: #cffafe; }

.tb-card.is-alert {
  border-color: var(--tb-red);
  background: rgba(239, 68, 68, 0.16);
  box-shadow: 0 0 22px -4px rgba(248, 113, 113, 0.9);
  animation: tb-flash 1s steps(2, jump-none) infinite;
}

.tb-card.is-alert strong,
.tb-card.is-alert > span { color: #fee2e2; }

@keyframes tb-flash {
  from { opacity: 1; }
  to { opacity: 0.62; }
}

.tb-readouts {
  margin: 0;
  padding: 0 12px;
  border: 1px solid var(--tb-line);
  background: rgba(9, 9, 11, 0.8);
}

.tb-readouts div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--tb-line);
}

.tb-readouts div:last-child { border-bottom: 0; }
.tb-readouts dt { font-size: 0.78rem; color: var(--tb-mute); }

.tb-readouts dd {
  margin: 0;
  font-family: var(--tb-mono);
  font-size: 0.88rem;
  font-weight: 700;
  text-align: right;
  color: var(--tb-green-soft);
}

.tb-readouts dd[data-tone="warn"] { color: var(--tb-amber); }
.tb-readouts dd[data-tone="alert"] { color: #fca5a5; }

.tb-flight {
  padding: 8px 12px;
  border-left: 2px solid var(--tb-cyan-soft);
  background: rgba(9, 9, 11, 0.8);
}

.tb-flight p:last-child { margin-top: 4px; font-size: 0.88rem; color: #e4e4e7; }

.tb-engage {
  display: block;
  width: 100%;
  min-height: 52px;
  margin-top: 16px;
  padding: 12px 16px;
  border: 2px solid var(--tb-green);
  background: rgba(52, 211, 153, 0.1);
  color: var(--tb-green-soft);
  font: 900 0.86rem/1.2 var(--font-body);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 150ms linear, box-shadow 150ms linear, transform 120ms ease;
}

.tb-engage:hover { background: rgba(52, 211, 153, 0.2); box-shadow: 0 0 24px -6px rgba(52, 211, 153, 0.9); }
.tb-engage:active { transform: scale(0.99); }
.tb.is-pulsing .tb-engage { background: rgba(52, 211, 153, 0.25); box-shadow: 0 0 30px -4px rgba(52, 211, 153, 1); }

.tb-note {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px solid var(--tb-line);
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--tb-mute);
}

.tb-note strong { letter-spacing: 0.16em; text-transform: uppercase; color: #d4d4d8; }

.tb-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .tb { padding: 16px; }
  .tb-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 400px) {
  .tb-toggle { grid-template-columns: minmax(0, 1fr); }
  .tb-gauge-big { font-size: 2.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .tb, .tb-ring, .tb-toggle button, .tb-engage { transition: none; }
  .tb-card.is-alert, .tb.is-pulsing .tb-ping { animation: none; }
}

/* Product photo on the iron selector */
.tb-toggle button.tb-has-img { grid-template-columns: 52px minmax(0, 1fr); column-gap: 10px; align-items: center; }
.tb-toggle button.tb-has-img img { grid-row: 1 / span 2; width: 52px; height: 52px; background: #fff; object-fit: cover; }