:root {
  --lab-bg: #f4f5f7;
  --lab-surface: #ffffff;
  --lab-surface-soft: #f8f9fb;
  --lab-ink: #1a1c1d;
  --lab-muted: #62666d;
  --lab-subtle: #626870;
  --lab-line: rgba(77, 84, 96, 0.13);
  --lab-blue: #0071e3;
  --lab-blue-dark: #0059b5;
  --lab-blue-soft: #eaf4ff;
  --lab-green: #267247;
  --lab-green-soft: #e9f7ef;
  --lab-amber: #8a5c00;
  --lab-amber-soft: #fff5dd;
  --lab-red: #b42318;
  --lab-red-soft: #fff0ee;
  --lab-radius: 14px;
  --lab-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  background: var(--lab-bg);
}

body {
  min-width: 320px;
  min-height: 100vh;
  background: var(--lab-bg);
  color: var(--lab-ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
}

::selection {
  background: rgba(0, 113, 227, 0.2);
  color: #10243a;
}

* {
  scrollbar-color: #bec3ca transparent;
  scrollbar-width: thin;
}

*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb { border-radius: 999px; background: #bec3ca; }
*::-webkit-scrollbar-track { background: transparent; }

button,
input,
select,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid var(--lab-blue);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  background: var(--lab-ink);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.experience-header {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 68px;
  padding: 0 2rem;
  border-bottom: 1px solid var(--lab-line);
  background: rgba(255, 255, 255, 0.94);
}

.experience-brand {
  justify-self: start;
  color: var(--lab-ink);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.experience-brand span { color: var(--lab-blue); }

.simulation-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  font-weight: 600;
}

.simulation-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lab-green);
  box-shadow: 0 0 0 4px rgba(38, 114, 71, 0.1);
}

.header-exit {
  display: inline-flex;
  justify-self: end;
  align-items: center;
  gap: 0.35rem;
  color: var(--lab-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 160ms ease;
}

.header-exit:hover { color: var(--lab-blue); }
.header-exit .material-symbols-outlined { font-size: 0.875rem; }

.service-lab {
  display: grid;
  grid-template-columns: minmax(230px, 0.72fr) minmax(540px, 2.15fr) minmax(260px, 0.9fr);
  min-height: calc(100vh - 68px);
  min-height: calc(100svh - 68px);
}

.service-selector,
.service-context {
  min-width: 0;
  padding: clamp(2rem, 4vw, 3.5rem) clamp(1.25rem, 3vw, 2.5rem);
  background: var(--lab-surface);
}

.service-selector {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--lab-line);
}

.selector-heading h1 {
  max-width: 9ch;
  font-size: clamp(1.75rem, 2.7vw, 2.75rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.selector-heading p {
  max-width: 30ch;
  margin-top: 1.25rem;
  color: var(--lab-muted);
  font-size: 0.8125rem;
  line-height: 1.7;
}

.service-tabs {
  display: grid;
  gap: 0.5rem;
  margin-top: 3rem;
}

.service-tab {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  min-height: 64px;
  padding: 0.75rem;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--lab-muted);
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms var(--lab-ease);
}

.service-tab:hover {
  background: var(--lab-surface-soft);
  color: var(--lab-ink);
}

.service-tab.is-active {
  background: var(--lab-blue-soft);
  color: #064f96;
}

.service-tab:active { transform: scale(0.985); }

.service-tab-icon {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 10px;
  background: #eef0f3;
  color: #5d636c;
  font-size: 1rem;
}

.service-tab.is-active .service-tab-icon {
  background: var(--lab-blue);
  color: #fff;
}

.service-tab strong,
.service-tab small { display: block; }

.service-tab strong {
  font-size: 0.75rem;
  line-height: 1.25;
}

.service-tab small {
  margin-top: 0.2rem;
  color: var(--lab-subtle);
  font-size: 0.6875rem;
  line-height: 1.2;
}

.service-tab-arrow {
  color: var(--lab-subtle);
  font-size: 0.875rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 180ms ease, transform 180ms var(--lab-ease);
}

.service-tab.is-active .service-tab-arrow {
  color: var(--lab-blue);
  opacity: 1;
  transform: translateX(0);
}

.selector-footnote {
  margin-top: auto;
  padding-top: 2rem;
  color: var(--lab-subtle);
  font-size: 0.6875rem;
  line-height: 1.6;
}

.lab-workspace {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  background: var(--lab-bg);
}

.experience-panel {
  min-height: calc(100svh - 68px - clamp(2.5rem, 6vw, 5rem));
  overflow: hidden;
  border-radius: var(--lab-radius);
  background: var(--lab-surface);
  box-shadow: 0 24px 70px rgba(36, 42, 50, 0.08);
}

.experience-panel[hidden] { display: none; }

.experience-panel.is-active {
  animation: panel-enter 420ms var(--lab-ease) both;
}

@keyframes panel-enter {
  from { opacity: 0.7; filter: blur(6px); transform: translateY(8px); }
  to { opacity: 1; filter: blur(0); transform: translateY(0); }
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--lab-line);
}

.panel-heading h2 {
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.panel-heading p {
  max-width: 58ch;
  margin-top: 0.45rem;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  line-height: 1.55;
}

.panel-state {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.6rem;
  border-radius: 999px;
  background: var(--lab-green-soft);
  color: var(--lab-green);
  font-size: 0.6875rem;
  font-weight: 700;
}

.panel-state i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.assistant-demo { padding: 1.5rem 1.75rem 1.75rem; }

.prompt-suggestions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.prompt-suggestions > span {
  margin-right: 0.2rem;
  color: var(--lab-subtle);
  font-size: 0.6875rem;
  font-weight: 700;
}

.prompt-suggestions button,
.task-filters button {
  border: 1px solid var(--lab-line);
  border-radius: 999px;
  background: #fff;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  font-weight: 650;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.prompt-suggestions button { padding: 0.48rem 0.7rem; }

.prompt-suggestions button:hover,
.task-filters button:hover {
  border-color: rgba(0, 113, 227, 0.25);
  background: var(--lab-blue-soft);
  color: var(--lab-blue-dark);
}

.chat-transcript {
  display: grid;
  align-content: start;
  gap: 1.25rem;
  min-height: 310px;
  max-height: calc(100svh - 350px);
  margin-top: 1.25rem;
  padding: 1.5rem;
  overflow-y: auto;
  border-radius: 12px;
  background: var(--lab-surface-soft);
}

.chat-message {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 0.75rem;
  max-width: 88%;
}

.chat-message.user-message {
  grid-template-columns: minmax(0, 1fr);
  justify-self: end;
  padding: 0.75rem 0.9rem;
  border-radius: 12px 12px 3px 12px;
  background: var(--lab-blue-soft);
  color: #173b60;
}

.message-avatar {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 10px;
  background: var(--lab-blue);
  color: #fff;
  font-size: 1rem;
}

.chat-message strong {
  color: var(--lab-ink);
  font-size: 0.6875rem;
}

.chat-message p {
  margin-top: 0.45rem;
  color: var(--lab-muted);
  font-size: 0.75rem;
  line-height: 1.7;
}

.user-message p {
  margin: 0;
  color: inherit;
}

.source-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.7rem;
}

.source-list span {
  padding: 0.3rem 0.45rem;
  border-radius: 6px;
  background: #eef0f3;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  font-weight: 600;
}

.assistant-message.is-loading p {
  width: min(260px, 70vw);
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, #e1e4e8 20%, #f1f3f5 45%, #e1e4e8 70%);
  background-size: 220% 100%;
  animation: loading-sweep 1.1s ease-in-out infinite;
}

@keyframes loading-sweep {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}

.assistant-composer {
  margin-top: 1rem;
}

.assistant-composer > label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  font-weight: 700;
}

.composer-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
}

.composer-row input {
  width: 100%;
  min-width: 0;
  min-height: 46px;
  padding: 0.75rem 0.9rem;
  border: 1px solid #d7dbe0;
  border-radius: 10px;
  background: #fff;
  color: var(--lab-ink);
  font-size: 0.75rem;
  caret-color: var(--lab-blue);
}

.composer-row input::placeholder { color: #62666d; }

.composer-row button,
.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 42px;
  border: 0;
  border-radius: 10px;
  background: var(--lab-blue);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 750;
  cursor: pointer;
  transition: background 160ms ease, transform 160ms var(--lab-ease);
}

.composer-row button { min-width: 86px; padding: 0.6rem 0.9rem; }
.composer-row button .material-symbols-outlined,
.primary-action .material-symbols-outlined { font-size: 0.875rem; }

.composer-row button:hover,
.primary-action:hover { background: var(--lab-blue-dark); }

.composer-row button:active,
.primary-action:active { transform: scale(0.98); }

.composer-row button:disabled,
.primary-action:disabled {
  background: #a8afb7;
  cursor: not-allowed;
  transform: none;
}

.field-message {
  min-height: 1rem;
  margin-top: 0.4rem;
  color: var(--lab-red);
  font-size: 0.6875rem;
}

.automation-controls {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) auto auto;
  align-items: end;
  gap: 0.65rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--lab-line);
}

.automation-controls label {
  grid-column: 1;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  font-weight: 700;
}

.automation-controls select {
  grid-column: 1;
  min-height: 42px;
  margin-top: -0.2rem;
  padding: 0 2.25rem 0 0.75rem;
  border: 1px solid #d7dbe0;
  border-radius: 10px;
  background-color: #fff;
  color: var(--lab-ink);
  font-size: 0.6875rem;
}

.automation-controls .primary-action { grid-column: 2; grid-row: 1 / 3; padding: 0.65rem 0.9rem; }

.secondary-action {
  grid-column: 3;
  grid-row: 1 / 3;
  min-height: 42px;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--lab-line);
  border-radius: 10px;
  background: #fff;
  color: var(--lab-muted);
  font-size: 0.6875rem;
  font-weight: 700;
  cursor: pointer;
}

.secondary-action:hover { background: var(--lab-surface-soft); color: var(--lab-ink); }

.flow-workbench { padding: 1.5rem; }

.flow-stage {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 54px 1fr 54px 1fr 54px 1fr;
  align-items: center;
  min-height: 270px;
  padding: 2rem;
  border-radius: 12px;
  background-color: var(--lab-surface-soft);
  background-image: radial-gradient(circle at 1px 1px, #d9dde3 1px, transparent 1px);
  background-size: 18px 18px;
}

.lab-flow-node {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
  padding: 0.85rem;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(42, 47, 55, 0.08);
  transition: box-shadow 240ms ease, transform 240ms var(--lab-ease), filter 240ms ease;
}

.lab-flow-node > .material-symbols-outlined {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  background: #eef0f3;
  color: var(--lab-muted);
  font-size: 1rem;
}

.lab-flow-node strong,
.lab-flow-node small { display: block; }

.lab-flow-node strong { font-size: 0.6875rem; line-height: 1.3; }
.lab-flow-node small { margin-top: 0.2rem; color: var(--lab-subtle); font-size: 0.6875rem; }

.lab-flow-node.is-running {
  filter: saturate(1.08);
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(0, 113, 227, 0.18);
}

.lab-flow-node.is-running > .material-symbols-outlined {
  background: var(--lab-blue);
  color: #fff;
}

.lab-flow-node.is-complete > .material-symbols-outlined {
  background: var(--lab-green-soft);
  color: var(--lab-green);
}

.lab-flow-line {
  position: relative;
  height: 2px;
  overflow: hidden;
  background: #d9dde2;
}

.lab-flow-line i {
  position: absolute;
  inset: 0;
  background: var(--lab-blue);
  transform: scaleX(0);
  transform-origin: left;
}

.lab-flow-line.is-complete i { animation: line-fill 380ms var(--lab-ease) forwards; }

@keyframes line-fill { to { transform: scaleX(1); } }

.flow-log {
  margin-top: 1rem;
  overflow: hidden;
  border-radius: 12px;
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--lab-line);
}

.flow-log-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--lab-line);
}

.flow-log-heading strong { font-size: 0.6875rem; }
.flow-log-heading span { color: var(--lab-subtle); font-size: 0.6875rem; }

.flow-log ol { max-height: 155px; overflow-y: auto; }

.flow-log li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  border-top: 1px solid rgba(77, 84, 96, 0.08);
  color: var(--lab-muted);
  font-size: 0.6875rem;
}

.flow-log li:first-child { border-top: 0; }
.flow-log li span:first-child { color: var(--lab-subtle); font-variant-numeric: tabular-nums; }
.flow-log li strong { color: var(--lab-green); font-size: 0.6875rem; }
.flow-log li.empty-log { display: block; color: var(--lab-subtle); }

.operations-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--lab-line);
}

.operations-summary > div {
  padding: 1.1rem 1.25rem;
  border-right: 1px solid var(--lab-line);
}

.operations-summary > div:last-child { border-right: 0; }
.operations-summary span,
.operations-summary strong { display: block; }
.operations-summary span { color: var(--lab-muted); font-size: 0.6875rem; }
.operations-summary strong { margin-top: 0.35rem; font-size: 1.375rem; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }

.task-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
}

.task-filters { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.task-filters button { padding: 0.42rem 0.65rem; }
.task-filters button.is-active { border-color: transparent; background: var(--lab-ink); color: #fff; }
.task-toolbar > span { color: var(--lab-subtle); font-size: 0.6875rem; }

.task-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(220px, 0.85fr);
  min-height: 410px;
  border-top: 1px solid var(--lab-line);
}

.task-list { min-width: 0; }
.task-list > li { display: block; }
.task-list > li[hidden] { display: none; }

.task-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 50px 64px 18px;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  min-height: 72px;
  padding: 0.75rem 1.25rem;
  border: 0;
  border-bottom: 1px solid var(--lab-line);
  background: #fff;
  color: var(--lab-muted);
  text-align: left;
  cursor: pointer;
  transition: background 160ms ease;
}

.task-row:hover,
.task-row.is-selected { background: var(--lab-surface-soft); }
.task-row strong,
.task-row small { display: block; }
.task-row strong { color: var(--lab-ink); font-size: 0.75rem; }
.task-row small { margin-top: 0.25rem; color: var(--lab-subtle); font-size: 0.6875rem; }
.task-priority { color: var(--lab-subtle); font-size: 0.6875rem; }
.task-row > .material-symbols-outlined { color: var(--lab-subtle); font-size: 1rem; }

.task-status {
  justify-self: start;
  padding: 0.28rem 0.45rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 750;
  white-space: nowrap;
}

.status-running { background: var(--lab-blue-soft); color: var(--lab-blue-dark); }
.status-pending { background: var(--lab-amber-soft); color: var(--lab-amber); }
.status-done { background: var(--lab-green-soft); color: var(--lab-green); }

.task-inspector {
  padding: 1.5rem;
  border-left: 1px solid var(--lab-line);
  background: var(--lab-surface-soft);
}

.inspector-heading {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--lab-subtle);
  font-size: 0.6875rem;
  font-weight: 700;
}

.inspector-heading .material-symbols-outlined { font-size: 0.875rem; }
.task-inspector h3 { margin-top: 1.25rem; font-size: 1rem; line-height: 1.35; letter-spacing: -0.02em; }
.task-inspector > p { margin-top: 0.75rem; color: var(--lab-muted); font-size: 0.6875rem; line-height: 1.7; }
.task-inspector dl { display: grid; gap: 0.65rem; margin-top: 1.25rem; }
.task-inspector dl div { display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: 0.75rem; font-size: 0.6875rem; }
.task-inspector dt { color: var(--lab-subtle); }
.task-inspector dd { color: var(--lab-ink); }
.task-inspector .primary-action { width: 100%; margin-top: 1.5rem; padding: 0.65rem; }
.inspector-message { min-height: 1rem; color: var(--lab-green) !important; font-size: 0.6875rem !important; }

.service-context {
  border-left: 1px solid var(--lab-line);
}

.service-context > h2 { max-width: 15ch; margin-top: 0; font-size: clamp(1.45rem, 2.3vw, 2.15rem); line-height: 1.15; letter-spacing: -0.035em; }
.service-context > p { max-width: 36ch; margin-top: 1rem; color: var(--lab-muted); font-size: 0.75rem; line-height: 1.75; }

.context-deliverables {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--lab-line);
}

.context-deliverables h3 { color: var(--lab-subtle); font-size: 0.6875rem; font-weight: 750; }
.context-deliverables ul { display: grid; gap: 0.75rem; margin-top: 1rem; }
.context-deliverables li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 0.55rem; color: var(--lab-muted); font-size: 0.6875rem; line-height: 1.45; }
.context-deliverables .material-symbols-outlined { color: var(--lab-blue); font-size: 0.875rem; }

.experience-explainer {
  margin-top: 2.5rem;
  padding: 1rem;
  border-radius: 12px;
  background: var(--lab-blue-soft);
}

.experience-explainer span { color: var(--lab-blue-dark); font-size: 0.6875rem; font-weight: 750; }
.experience-explainer p { margin-top: 0.45rem; color: #365a7d; font-size: 0.6875rem; line-height: 1.55; }

.context-actions {
  display: grid;
  gap: 0.6rem;
  margin-top: 2rem;
}

.context-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  background: var(--lab-blue);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 750;
  text-decoration: none;
  transition: background 160ms ease;
}

.context-actions a:hover { background: var(--lab-blue-dark); }

.context-actions .context-secondary {
  border: 1px solid var(--lab-line);
  background: #fff;
  color: var(--lab-muted);
}

.context-actions .context-secondary:hover { background: var(--lab-surface-soft); color: var(--lab-ink); }

@media (max-width: 1180px) {
  .service-lab { grid-template-columns: 230px minmax(0, 1fr); }
  .service-context { grid-column: 1 / -1; border-top: 1px solid var(--lab-line); border-left: 0; }
  .service-context { display: grid; grid-template-columns: 0.8fr 1.2fr 1fr; align-items: start; gap: 2rem; }
  .service-context > h2 { grid-column: 1; margin-top: 0; }
  .service-context > p { grid-column: 2; grid-row: 1 / 3; margin-top: 0; }
  .context-deliverables { grid-column: 3; grid-row: 1 / 3; margin-top: 0; padding-top: 0; border-top: 0; }
  .experience-explainer { grid-column: 1 / 3; margin-top: 0; }
  .context-actions { grid-column: 3; margin-top: 0; }
}

@media (max-width: 820px) {
  .experience-header { grid-template-columns: 1fr auto; min-height: 60px; padding: 0 1rem; }
  .simulation-status { display: none; }
  .service-lab { display: block; }
  .service-selector { padding: 1.75rem 1rem 1rem; border-right: 0; border-bottom: 1px solid var(--lab-line); }
  .selector-heading h1 { max-width: 12ch; font-size: 2.25rem; }
  .selector-heading p { max-width: 44ch; margin-top: 0.85rem; }
  .service-tabs { position: sticky; top: 0; z-index: 10; display: flex; gap: 0.4rem; margin-top: 1.5rem; overflow: visible; }
  .service-tab { grid-template-columns: 26px minmax(0, auto); flex: 1 1 0; width: auto; min-width: 0; min-height: 48px; padding: 0.55rem 0.5rem; }
  .service-tab-icon { width: 26px; height: 26px; border-radius: 8px; font-size: 0.875rem; }
  .service-tab small,
  .service-tab-arrow { display: none; }
  .selector-footnote { margin-top: 1rem; padding-top: 0; }
  .lab-workspace { padding: 0.75rem; }
  .experience-panel { min-height: 0; }
  .service-context { display: block; padding: 3rem 1.25rem; }
  .service-context > h2 { max-width: 17ch; margin-top: 0; }
  .service-context > p { max-width: 65ch; }
  .context-deliverables,
  .experience-explainer,
  .context-actions { margin-top: 2rem; }
  .context-deliverables { padding-top: 1.5rem; border-top: 1px solid var(--lab-line); }
  .task-workbench { grid-template-columns: 1fr; }
  .task-inspector { border-top: 1px solid var(--lab-line); border-left: 0; }
  .flow-stage { grid-template-columns: 1fr; gap: 0.5rem; }
  .lab-flow-line { justify-self: center; width: 2px; height: 28px; }
  .lab-flow-line i { transform: scaleY(0); transform-origin: top; }
  .lab-flow-line.is-complete i { animation-name: line-fill-vertical; }
  @keyframes line-fill-vertical { to { transform: scaleY(1); } }
}

@media (max-width: 560px) {
  .header-exit { font-size: 0; }
  .header-exit .material-symbols-outlined { font-size: 1rem; }
  .selector-heading h1 { font-size: 2rem; }
  .panel-heading { display: block; padding: 1.25rem; }
  .panel-state { margin-top: 0.85rem; }
  .assistant-demo { padding: 1rem; }
  .prompt-suggestions { align-items: flex-start; }
  .prompt-suggestions > span { width: 100%; }
  .chat-transcript { min-height: 290px; max-height: none; padding: 1rem; }
  .chat-message { max-width: 96%; }
  .composer-row { grid-template-columns: 1fr; }
  .composer-row button { width: 100%; }
  .automation-controls { grid-template-columns: 1fr 1fr; padding: 1rem; }
  .automation-controls label,
  .automation-controls select { grid-column: 1 / -1; }
  .automation-controls .primary-action { grid-column: 1; grid-row: 3; }
  .automation-controls .secondary-action { grid-column: 2; grid-row: 3; }
  .flow-workbench { padding: 1rem; }
  .flow-stage { padding: 1.25rem; }
  .flow-log li { grid-template-columns: 42px minmax(0, 1fr); }
  .flow-log li strong { display: none; }
  .operations-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .operations-summary > div:nth-child(2) { border-right: 0; }
  .operations-summary > div:nth-child(-n+2) { border-bottom: 1px solid var(--lab-line); }
  .task-toolbar { align-items: flex-start; flex-direction: column; }
  .task-row { grid-template-columns: minmax(0, 1fr) 60px 16px; padding: 0.75rem 1rem; }
  .task-priority { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}