.wt-pressure {
  --wtp-worker: #286957;
  --wtp-worker-bg: #e4f2ec;
  --wtp-application: #a14b1f;
  --wtp-application-bg: #f9e9d9;
  --wtp-request: #286780;
  --wtp-request-bg: #e2f0f6;

  margin: 2rem 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.5;
}

:root[data-theme="dark"] .wt-pressure {
  --wtp-worker: #a1d3c5;
  --wtp-worker-bg: #16332c;
  --wtp-application: #eda66b;
  --wtp-application-bg: #38271b;
  --wtp-request: #9dd2e3;
  --wtp-request-bg: #172f3c;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .wt-pressure {
    --wtp-worker: #a1d3c5;
    --wtp-worker-bg: #16332c;
    --wtp-application: #eda66b;
    --wtp-application-bg: #38271b;
    --wtp-request: #9dd2e3;
    --wtp-request-bg: #172f3c;
  }
}

.wt-pressure *,
.wt-pressure *::before,
.wt-pressure *::after {
  box-sizing: border-box;
}

.prose .wt-pressure p,
.prose .wt-pressure h3,
.prose .wt-pressure h4 {
  margin: 0;
}

.wt-pressure__header,
.wt-pressure__lane-head,
.wt-pressure__thresholds {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.prose .wt-pressure__eyebrow {
  margin-bottom: 0.25rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.prose .wt-pressure h3 {
  font-size: 1.25rem;
  line-height: 1.3;
}

.wt-pressure__value {
  color: var(--wtp-application);
  font-size: 2.25rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.wt-pressure__label {
  display: block;
  margin-top: 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.wt-pressure__hint {
  color: var(--muted);
  font-size: 0.8rem;
}

.wt-pressure__range {
  margin-top: 0.35rem;
}

.wt-pressure__range input {
  display: block;
  width: 100%;
  height: 2.75rem;
  margin: 0;
  padding: 0;
  appearance: none;
  background: transparent;
  cursor: ew-resize;
}

.wt-pressure__range input::-webkit-slider-runnable-track {
  height: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  background: linear-gradient(to right, var(--wtp-application) var(--wtp-percent), var(--code-background) var(--wtp-percent));
}

.wt-pressure__range input::-moz-range-track {
  height: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  background: linear-gradient(to right, var(--wtp-application) var(--wtp-percent), var(--code-background) var(--wtp-percent));
}

.wt-pressure__range input::-webkit-slider-thumb {
  width: 1.25rem;
  height: 1.75rem;
  margin-top: -0.55rem;
  appearance: none;
  border: 2px solid var(--text);
  border-radius: 0.3rem;
  background: var(--surface);
  box-shadow: 0 1px 4px #0003;
}

.wt-pressure__range input::-moz-range-thumb {
  width: 1.05rem;
  height: 1.55rem;
  border: 2px solid var(--text);
  border-radius: 0.3rem;
  background: var(--surface);
  box-shadow: 0 1px 4px #0003;
}

.wt-pressure__ticks {
  position: relative;
  height: 1.4rem;
  margin: 0 0.625rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.wt-pressure__ticks span {
  position: absolute;
  transform: translateX(-50%);
}

.wt-pressure__ticks span::before {
  position: absolute;
  top: -1.8rem;
  left: 50%;
  width: 2px;
  height: 0.9rem;
  background: currentColor;
  content: "";
  pointer-events: none;
}

.wt-pressure__ticks span:first-child { color: var(--wtp-worker); }
.wt-pressure__ticks span:nth-child(2) { color: var(--wtp-application); }
.wt-pressure__ticks .wt-pressure__maximum { right: -0.625rem; transform: none; }
.wt-pressure__ticks .wt-pressure__maximum::before { display: none; }

.wt-pressure__thresholds {
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 0.35rem 1.25rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.wt-pressure__key {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.4rem;
  border-radius: 50%;
}

.wt-pressure__key--worker { background: var(--wtp-worker); }
.wt-pressure__key--application { background: var(--wtp-application); }

.wt-pressure__presets {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.wt-pressure button {
  min-height: 2.5rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.75rem;
  cursor: pointer;
}

.wt-pressure button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--code-background);
}

.wt-pressure button:disabled,
.wt-pressure input:disabled { cursor: default; opacity: 0.6; }

.wt-pressure__status {
  min-height: 7rem;
  margin: 1.25rem 0 1rem;
  padding-left: 0.85rem;
  border-left: 3px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

.prose .wt-pressure__state {
  margin-bottom: 0.3rem;
  color: var(--text);
  font-size: 1rem;
  font-weight: 650;
}

.wt-pressure__diagram {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) 4rem minmax(0, 0.8fr);
  grid-template-areas: "workers worker-route disk" "application application-route disk";
  gap: 1rem 0;
}

.wt-pressure__lane,
.wt-pressure__disk {
  min-width: 0;
  padding: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  background: var(--background);
}

.wt-pressure__lane--workers { grid-area: workers; }
.wt-pressure__lane--application { grid-area: application; border-color: var(--wtp-request); }
.wt-pressure__disk { grid-area: disk; display: flex; flex-direction: column; justify-content: center; gap: 0.7rem; }

.prose .wt-pressure h4 {
  font-size: 0.9rem;
  line-height: 1.3;
}

.wt-pressure__count { color: var(--muted); font-size: 0.7rem; white-space: nowrap; }
.wt-pressure__threads { display: flex; gap: 0.5rem; margin: 0.85rem 0; }
.wt-pressure__thread { display: block; width: 2.15rem; height: 2.15rem; padding: 0.35rem; border: 1px solid currentColor; border-radius: 0.35rem; color: var(--muted); }
.wt-pressure__thread svg { display: block; width: 100%; height: 100%; }
.wt-pressure__lane--application .wt-pressure__thread { color: var(--wtp-request); background: var(--wtp-request-bg); }
.wt-pressure__activity { font-size: 0.85rem; font-weight: 650; }
.prose .wt-pressure__detail { margin-top: 0.3rem; color: var(--muted); font-size: 0.75rem; }
.wt-pressure__disk-icon { width: 2.6rem; color: var(--muted); }
.wt-pressure__disk h4 { font-family: var(--font-mono); }
.wt-pressure__disk p { font-size: 0.8rem; }
.wt-pressure__file-lines { display: flex; flex-direction: column; gap: 0.3rem; }
.wt-pressure__file-lines i { display: block; width: 100%; height: 2px; background: var(--border); }
.wt-pressure__file-lines i:last-child { width: 65%; }

.wt-pressure__route {
  --wtp-route: var(--border);
  --wtp-flow: wtp-flow-x;
  position: relative;
  align-self: center;
  height: 2px;
  color: var(--wtp-route);
  background: currentColor;
}

.wt-pressure__route--workers { grid-area: worker-route; }
.wt-pressure__route--application { grid-area: application-route; }
.wt-pressure__route::after { position: absolute; top: -4px; right: 1px; width: 9px; height: 9px; border-top: 2px solid currentColor; border-right: 2px solid currentColor; transform: rotate(45deg); content: ""; }
.wt-pressure__packet { display: none; position: absolute; top: -5px; left: 0; width: 9px; height: 12px; border: 1px solid currentColor; border-radius: 2px; background: var(--surface); animation: var(--wtp-flow) 2.4s linear infinite; }
.wt-pressure__packet--second { animation-delay: -1.2s; }

.wt-pressure[data-mode="background"] .wt-pressure__lane--workers,
.wt-pressure[data-mode="foreground"] .wt-pressure__lane--workers { border-color: var(--wtp-worker); }
.wt-pressure[data-mode="background"] .wt-pressure__lane--workers .wt-pressure__thread,
.wt-pressure[data-mode="foreground"] .wt-pressure__lane--workers .wt-pressure__thread { color: var(--wtp-worker); background: var(--wtp-worker-bg); animation: wtp-work 2.4s ease-in-out infinite; animation-delay: calc(var(--wtp-order) * -0.3s); }
.wt-pressure[data-mode="background"] .wt-pressure__route--workers,
.wt-pressure[data-mode="foreground"] .wt-pressure__route--workers { --wtp-route: var(--wtp-worker); }
.wt-pressure[data-mode="background"] .wt-pressure__route--workers .wt-pressure__packet,
.wt-pressure[data-mode="foreground"] .wt-pressure__route--workers .wt-pressure__packet,
.wt-pressure[data-mode="foreground"] .wt-pressure__route--application .wt-pressure__packet { display: block; }
.wt-pressure[data-mode="foreground"] .wt-pressure__lane--application { border-color: var(--wtp-application); }
.wt-pressure[data-mode="foreground"] .wt-pressure__lane--application .wt-pressure__thread { color: var(--wtp-application); background: var(--wtp-application-bg); animation: wtp-work 2.4s ease-in-out infinite; animation-delay: calc(var(--wtp-order) * -0.3s); }
.wt-pressure[data-mode="foreground"] .wt-pressure__route--application { --wtp-route: var(--wtp-application); }
.wt-pressure[data-mode="foreground"] .wt-pressure__lane--application .wt-pressure__activity,
.wt-pressure[data-mode="foreground"] .wt-pressure__lane--application .wt-pressure__detail { color: var(--wtp-application); }
.wt-pressure[data-mode="background"] .wt-pressure__status { border-color: var(--wtp-worker); }
.wt-pressure[data-mode="foreground"] .wt-pressure__status { border-color: var(--wtp-application); }
.wt-pressure[data-mode="background"] .wt-pressure__disk,
.wt-pressure[data-mode="foreground"] .wt-pressure__disk { border-color: var(--wtp-worker); }
.wt-pressure[data-mode="background"] .wt-pressure__disk-icon,
.wt-pressure[data-mode="foreground"] .wt-pressure__disk-icon { color: var(--wtp-worker); }
.wt-pressure[data-mode="background"] .wt-pressure__file-lines i,
.wt-pressure[data-mode="foreground"] .wt-pressure__file-lines i { background: var(--wtp-worker); }

.wt-pressure__footer { margin-top: 1.2rem; }
.prose .wt-pressure__footer p { margin-top: 0.75rem; color: var(--muted); font-size: 0.75rem; }
.wt-pressure[data-motion="paused"] .wt-pressure__thread,
.wt-pressure[data-motion="paused"] .wt-pressure__packet { animation-play-state: paused !important; }

@keyframes wtp-flow-x {
  0% { left: 0; opacity: 0; }
  15%, 85% { opacity: 1; }
  100% { left: calc(100% - 9px); opacity: 0; }
}

@keyframes wtp-flow-y {
  0% { top: 0; opacity: 0; }
  15%, 85% { opacity: 1; }
  100% { top: calc(100% - 12px); opacity: 0; }
}

@keyframes wtp-work {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

@media (max-width: 540px) {
  .wt-pressure { padding: 0.9rem; }
  .wt-pressure__header { align-items: flex-start; }
  .prose .wt-pressure h3 { font-size: 1.1rem; }
  .wt-pressure__value { font-size: 1.9rem; }
  .wt-pressure__status { min-height: 9rem; }
  .wt-pressure__diagram { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-areas: "workers application" "worker-route application-route" "disk disk"; gap: 0 0.65rem; }
  .wt-pressure__lane { padding: 0.65rem; }
  .wt-pressure__lane-head { align-items: flex-start; flex-direction: column; gap: 0.25rem; min-height: 3.2rem; }
  .wt-pressure__threads { flex-wrap: wrap; gap: 0.35rem; min-height: 4.25rem; align-content: flex-start; }
  .wt-pressure__thread { width: 1.65rem; height: 1.65rem; padding: 0.23rem; }
  .prose .wt-pressure h4 { font-size: 0.8rem; }
  .wt-pressure__activity { font-size: 0.8rem; }
  .prose .wt-pressure__detail { font-size: 0.7rem; }
  .wt-pressure__route { --wtp-flow: wtp-flow-y; width: 2px; height: 2.75rem; justify-self: center; }
  .wt-pressure__route::after { top: auto; right: -3.5px; bottom: 1px; transform: rotate(135deg); }
  .wt-pressure__packet { top: 0; left: -3.5px; }
  .wt-pressure__disk { padding: 0.85rem; gap: 0.4rem; }
  .wt-pressure__disk-icon { width: 2rem; }
  .wt-pressure__file-lines { max-width: 7rem; }
}

@media (prefers-reduced-motion: reduce) {
  .wt-pressure__thread,
  .wt-pressure__packet { animation: none !important; }
}