/* Lab-only rules. Shared type, colours, logo, header, footer and buttons come from assets/site.css. */
.lab { padding-bottom: 56px; }
.lab [hidden] { display: none !important; }
.lab button { cursor: pointer; }
.lab button:disabled { cursor: default; }
.lab button svg { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.lab-intro { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; padding: 38px 0 28px; }
.lab-intro h1 { font-size: 48px; }
.lab-intro .eyebrow { margin-bottom: 12px; }
.lab-lead { font-size: 14px; line-height: 1.65; color: var(--ink-2); }
.lab-scenarios { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.lab .scenario { display: grid; grid-template-columns: 24px 1fr; column-gap: 10px; text-align: left; padding: 15px 18px; background: var(--surface); color: var(--ink); border: 1px solid var(--border); border-radius: var(--r-opt); transition: border-color var(--ease); }
.lab .scenario > span { grid-row: 1 / 3; font-size: 12px; color: var(--muted); padding-top: 2px; }
.lab .scenario strong { font-weight: 600; font-size: 14px; }
.lab .scenario small { font-size: 12px; margin-top: 4px; color: var(--muted); }
.lab .scenario.active { border-color: var(--ink); background: var(--ink); color: var(--on-dark); }
.lab .scenario.active small, .lab .scenario.active > span { color: var(--on-dark-72); }
.lab .scenario:hover:not(.active) { background: var(--tint); border-color: var(--border-35); }
.lab .experience { display: grid; grid-template-columns: minmax(0, 1fr) 336px; border: 1px solid var(--border); border-radius: var(--r-card); overflow: hidden; }
.lab .stage { position: relative; isolation: isolate; min-width: 0; min-height: 655px; background: radial-gradient(ellipse at 46% 36%, #f7f9f4, #e7ece3 65%, #dce4d7); overflow: hidden; }
.lab[data-mode="room"] .stage { background: radial-gradient(ellipse at 46% 30%, #f7f6f1, #e8e9df 65%, #dfe3d5); }
.lab[data-mode="network"] .stage { background: radial-gradient(ellipse at 50% 38%, #f5f8f2, #e7ece5 65%, #d9e3d7); }
.lab .stage-top { position: absolute; z-index: 2; top: 20px; left: 22px; right: 22px; display: flex; justify-content: space-between; align-items: center; gap: 12px; pointer-events: none; }
.lab .stage-caption { font-size: 11px; font-weight: 600; letter-spacing: .7px; }
.lab .stage-caption > span { display: block; margin-top: 4px; font-size: 10px; font-weight: 400; letter-spacing: .4px; color: var(--muted); }
.lab .lock-status { display: flex; align-items: center; gap: 7px; padding: 7px 9px; background: #f4f5f1e8; border: 1px solid var(--border-20); border-radius: 4px; font-size: 11px; backdrop-filter: blur(10px); }
.lab .lock-status > span { width: 5px; height: 5px; border-radius: 50%; background: var(--muted); flex: none; }
.lab .lock-status.is-open { color: var(--accent-text); border-color: #1f8a534a; background: #eef6f1e8; }
.lab .lock-status.is-open > span { background: var(--accent); }
.lab .lock-status.is-denied { color: #923e2a; background: #fff0e9e8; border-color: #b2634455; }
.lab .lock-status.is-denied > span { background: #b26344; }
.lab #viewport { position: absolute; inset: 0; z-index: 1; touch-action: pan-y; outline-offset: -5px; }
.lab #viewport canvas { width: 100%; height: 100%; display: block; cursor: grab; touch-action: pan-y !important; }
.lab #viewport canvas:active { cursor: grabbing; }
.lab .loading { position: absolute; inset: 47% 10% auto; text-align: center; font-size: 14px; color: var(--muted); }
.lab .stage-bottom { position: absolute; z-index: 3; left: 22px; right: 22px; bottom: 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.lab .rotate-hint { font-size: 11px; line-height: 1.4; color: var(--muted); max-width: 130px; }
.lab .view-tools { display: flex; gap: 5px; }
.lab .view-tools button, .lab .scene-views button { background: #f4f5f1e8; color: var(--ink); border: 1px solid var(--border-25); border-radius: 4px; min-height: 38px; padding: 8px 10px; font-size: 12px; display: flex; align-items: center; gap: 7px; backdrop-filter: blur(10px); }
.lab .view-tools button[aria-pressed=true], .lab .scene-views button[aria-pressed=true] { background: var(--ink); color: var(--on-dark); border-color: var(--ink); }
.lab .view-tools button:disabled { opacity: .4; }
.lab .scene-views { position: absolute; z-index: 3; top: 86px; left: 22px; display: flex; flex-wrap: wrap; gap: 5px; max-width: calc(100% - 44px); }
.lab .scene-views button { font-size: 11px; min-height: 32px; padding: 6px 9px; }
.lab .scene-overlay { position: absolute; z-index: 2; bottom: 80px; left: 22px; right: 22px; display: flex; justify-content: center; pointer-events: none; }
.lab .transfer { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border: 1px solid var(--border-20); border-radius: 6px; background: #f4f5f1e0; backdrop-filter: blur(12px); font-size: 11px; }
.lab .transfer .endpoint { display: grid; gap: 3px; }
.lab .transfer small { color: var(--muted); font-size: 10px; }
.lab .transfer .active { color: var(--accent-text); }
.lab .transfer-track { width: 44px; height: 1px; background: var(--border-35); position: relative; }
.lab .transfer-track:after { content: ''; position: absolute; top: -2px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.lab .transfer.is-moving .transfer-track:after { animation: lab-transfer 1s ease-in-out; }
@keyframes lab-transfer { to { transform: translateX(40px); } }
.lab .power-indicator { padding: 9px 13px; border: 1px solid var(--border-20); background: #f4f5f1e0; border-radius: 4px; font-size: 12px; color: var(--ink-2); }
.lab .console { display: flex; flex-direction: column; min-width: 0; padding: 25px 23px 22px; background: var(--ink); color: var(--on-dark); }
@media (min-width: 801px) {
  .lab .experience { overflow: clip; align-items: start; background: var(--ink); }
  .lab .stage { position: sticky; top: 88px; height: clamp(540px, calc(100svh - 110px), 760px); min-height: 0; }
  .lab .console { min-height: 760px; }
}
.lab .console-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.lab .console-heading .eyebrow { color: var(--accent-light); font-size: 10px; letter-spacing: 1px; }
.lab .reset { background: transparent; border: 0; color: var(--on-dark-72); display: flex; padding: 4px; }
.lab .console h2 { font-size: 29px; line-height: 1.08; letter-spacing: -.025em; margin: 0 0 12px; }
.lab .console-description { font-size: 13px; line-height: 1.6; color: var(--on-dark-80); margin-bottom: 18px; }
.lab .step-heading { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 11px; color: var(--on-dark-80); margin-bottom: 9px; }
.lab .step-heading > span:last-child { white-space: nowrap; font-variant-numeric: tabular-nums; color: var(--accent-light); }
.lab .steps { display: flex; gap: 4px; margin-bottom: 17px; }
.lab .steps span { flex: 1; height: 3px; border-radius: 2px; background: var(--on-dark-border); }
.lab .steps span.done { background: var(--accent-light); }
.lab .steps span.current { background: var(--on-dark); }
.lab .scenario-controls { display: grid; gap: 10px; }
.lab .info-card { padding: 13px; border: 1px solid var(--on-dark-border); border-radius: 6px; background: #ffffff05; }
.lab .card-heading { font-size: 10px; text-transform: uppercase; letter-spacing: .6px; color: var(--on-dark-65); margin-bottom: 8px; }
.lab .info-card strong { font-size: 14px; font-weight: 500; }
.lab .info-card p { font-size: 12px; line-height: 1.5; color: var(--on-dark-80); margin-top: 5px; }
.lab .info-card .demo-code { font-size: 29px; font-variant-numeric: tabular-nums; letter-spacing: 3px; line-height: 1.4; color: var(--on-dark); }
.lab .code-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 11px; color: var(--accent-light); margin-top: 5px; }
.lab .code-field { display: block; font-size: 12px; color: var(--on-dark-80); margin-top: 12px; }
.lab .code-field input { display: block; width: 100%; margin-top: 7px; border-radius: 4px; border: 1px solid var(--on-dark-border-35); padding: 10px 12px; background: #ffffff09; color: var(--on-dark); font: 500 19px/1.3 var(--font); letter-spacing: 3px; }
.lab .code-field input::placeholder { color: #f4f5f166; }
.lab .small-action { border: 0; padding: 6px 0 0; background: transparent; color: var(--accent-light); font-size: 11px; text-decoration: underline; text-underline-offset: 3px; }
.lab .feedback { min-height: 47px; display: flex; align-items: center; padding: 9px 0; font-size: 12px; line-height: 1.5; color: var(--on-dark-80); }
.lab .feedback.success { color: var(--accent-light); }
.lab .feedback.error { color: #ffc1ac; }
.lab .primary-action { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--on-dark); color: var(--ink); border: 1px solid var(--on-dark); border-radius: var(--r-btn); min-height: 48px; padding: 12px 14px; font-size: 13px; font-weight: 600; transition: background var(--ease); text-align: left; }
.lab .primary-action:hover:not(:disabled) { background: #fff; }
.lab .primary-action:disabled { background: #ffffff08; border-color: var(--on-dark-border); color: var(--on-dark-65); }
.lab .extra-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 9px; }
.lab .extra-actions:empty { display: none; }
.lab .extra-actions button { flex: 1; border: 1px solid var(--on-dark-border); border-radius: 4px; background: transparent; color: var(--on-dark-80); padding: 8px 9px; font-size: 11px; }
.lab .extra-actions button:hover:not(:disabled) { background: #ffffff09; }
.lab .extra-actions button:disabled { opacity: .5; }
.lab .experiments { margin-top: 14px; border-top: 1px solid var(--on-dark-border); padding-top: 12px; }
.lab .experiments summary { cursor: pointer; color: var(--accent-light); font-size: 13px; }
.lab .experiments summary span { display: block; color: var(--on-dark-65); font-size: 10px; padding: 4px 0 0 14px; }
.lab #experiment-controls { padding-top: 12px; }
.lab #experiment-controls p { font-size: 12px; line-height: 1.6; color: var(--on-dark-80); }
.lab #experiment-controls > button { width: 100%; margin-top: 9px; background: #ffffff09; border: 1px solid var(--on-dark-border); border-radius: 4px; color: var(--on-dark); padding: 10px; text-align: left; font-size: 12px; }
.lab #experiment-controls .experiment-hint { margin-top: 10px; color: var(--on-dark-65); font-size: 11px; }
.lab .code-history { display: grid; gap: 6px; margin-top: 12px; }
.lab .code-history button { display: flex; justify-content: space-between; align-items: center; gap: 8px; background: transparent; border: 1px solid var(--on-dark-border); border-radius: 4px; color: var(--on-dark); padding: 8px; }
.lab .code-history span { font-size: 16px; letter-spacing: 2px; }
.lab .code-history small { color: var(--on-dark-72); font-size: 10px; }
.lab .branch-note { font-size: 12px; color: #ffc1ac; line-height: 1.5; }
.lab .role-choice { display: flex; gap: 6px; }
.lab .role-choice button { flex: 1; border: 1px solid var(--on-dark-border); padding: 8px 5px; background: transparent; color: var(--on-dark); border-radius: 4px; font-size: 12px; }
.lab .role-choice button[aria-pressed="true"] { background: var(--accent-light); border-color: var(--accent-light); color: var(--ink); }
.lab .info-card .role-rights { color: var(--accent-light); font-size: 11px; min-height: 33px; margin-top: 8px; }
.lab .room-states { display: grid; gap: 6px; font-size: 11px; color: var(--on-dark-65); }
.lab .room-states > span { display: flex; justify-content: space-between; gap: 8px; }
.lab .room-states b { color: var(--on-dark-80); font-weight: 500; }
.lab .power-indicator { display: flex; align-items: center; gap: 10px; }
.lab .power-indicator small { display: block; font-size: 10px; margin-top: 3px; }
.lab .power-bulb { color: var(--accent-text); font-size: 22px; }
.lab .power-indicator.on-reserve { color: #deeee2; background: #102b24ed; border-color: #7fcfa066; }
.lab .on-reserve .power-bulb { color: #bfcac4; }
.lab[data-mode="room"][data-power="reserve"] .stage { background: radial-gradient(ellipse at 50% 35%, #233a40, #14282e 70%, #102125); }
.lab[data-mode="room"][data-power="reserve"] .stage-caption,
.lab[data-mode="room"][data-power="reserve"] .stage-caption > span,
.lab[data-mode="room"][data-power="reserve"] .rotate-hint { color: #c2d3cc; }
.lab .journal { margin-top: 19px; padding-top: 15px; border-top: 1px solid var(--on-dark-border); }
.lab .journal-heading { display: flex; justify-content: space-between; gap: 10px; font-size: 11px; color: var(--on-dark-80); }
.lab .journal-heading > span:last-child { font-size: 9px; letter-spacing: .6px; color: var(--on-dark-65); }
.lab #events { padding: 0; margin: 10px 0 0; list-style: none; display: grid; gap: 8px; min-height: 60px; }
.lab #events li { display: grid; grid-template-columns: 35px 1fr; gap: 9px; font-size: 10px; line-height: 1.45; color: var(--on-dark-80); }
.lab #events time { color: var(--on-dark-65); font-variant-numeric: tabular-nums; }
.lab #events button { border: 0; padding: 0; background: none; color: var(--accent-light); text-align: left; text-decoration: underline; text-underline-offset: 3px; font-size: inherit; }
.lab .store-list { display: grid; gap: 6px; margin-top: 10px; }
.lab .store-list button { display: flex; justify-content: space-between; gap: 8px; border: 1px solid var(--on-dark-border); border-radius: 4px; background: transparent; padding: 8px; color: var(--on-dark); font-size: 12px; }
.lab .store-list button.active { border-color: var(--accent-light); background: #7fcfa012; }
.lab .store-list small { font-size: 10px; color: var(--on-dark-72); }
.lab .insight { display: flex; align-items: flex-start; gap: 19px; padding: 22px 0; border-bottom: 1px solid var(--border); }
.lab .insight-number { font-size: 11px; color: var(--muted); padding-top: 3px; white-space: nowrap; }
.lab .insight h3 { font-size: 15px; margin-bottom: 6px; }
.lab .insight p { font-size: 12px; line-height: 1.6; color: var(--muted); max-width: 670px; }
.lab .insight button { margin-left: auto; border: 0; background: transparent; color: var(--ink); font-size: 12px; display: flex; align-items: center; gap: 16px; white-space: nowrap; }
.lab .insight button span { font-size: 25px; }
.lab-disclaimer { font-size: 11px; color: var(--muted); line-height: 1.65; padding-top: 15px; }
.lab-products { padding: 48px 0 32px; }
.lab-products .section-head h2 { font-size: 30px; }
.lab-products .section-head .eyebrow { margin-bottom: 9px; }
.lab .product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.lab .product-card { border: 1px solid var(--border); border-radius: var(--r-card); background: var(--surface); overflow: hidden; padding: 22px; }
.lab .product-main { display: flex; align-items: center; gap: 20px; margin-bottom: 15px; }
.lab .product-main img { width: 92px; height: 92px; object-fit: contain; filter: grayscale(1); flex: none; }
.lab .product-purpose { color: var(--accent-text); font-size: 11px; margin-bottom: 6px; }
.lab .product-card h3 { font-size: 18px; }
.lab .product-card > p { font-size: 14px; color: var(--ink-2); line-height: 1.6; margin: 10px 0 15px; }
.lab .product-card details { border-top: 1px solid var(--border); margin-top: 15px; }
.lab .product-card summary { font-size: 13px; font-weight: 500; cursor: pointer; padding: 12px 0; }
.lab .product-card dl { font-size: 12px; }
.lab .product-card dt { color: var(--muted); margin-top: 10px; }
.lab .product-card dd { margin: 3px 0 10px; color: var(--ink-2); }
.lab .product-card .link-arrow { font-size: 13px; }
.lab .product-note { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; padding-top: 15px; font-size: 11px; color: var(--muted); }
.lab .product-note > span { max-width: 600px; }
.lab .product-note a { color: var(--ink); text-align: right; text-decoration: underline; text-underline-offset: 3px; }
.lab .lab-cta { display: flex; justify-content: space-between; align-items: center; gap: 30px; margin-top: 4px; }
.lab .lab-cta h2 { font-size: 30px; margin-bottom: 12px; }
.lab .lab-cta p { font-size: 15px; color: var(--on-dark-80); max-width: 560px; }
.lab .lab-cta-actions { display: flex; flex-direction: column; align-items: center; gap: 12px; flex: none; }
.lab .lab-phone { color: var(--on-dark); font-size: 14px; }
.lab .fallback { position: absolute; inset: 35% 10% auto; text-align: center; max-width: 400px; margin: auto; font-size: 16px; line-height: 1.6; }
.lab .fallback small { display: block; font-size: 14px; margin-top: 10px; color: var(--muted); }
.lab-noscript { padding: 20px; background: var(--tint); }
@media (max-width: 1100px) {
  .lab .experience { grid-template-columns: minmax(0, 1fr) 320px; }
  .lab .console { padding: 23px 20px; }
  .lab .stage-top, .lab .stage-bottom { left: 17px; right: 17px; }
  .lab .rotate-hint { max-width: 90px; font-size: 10px; }
  .lab .view-tools button { padding: 8px; font-size: 11px; }
  .lab .scene-views { left: 17px; }
  .lab-intro h1 { font-size: 42px; }
  .lab .scenario { padding: 13px; column-gap: 5px; }
  .lab .scenario small { font-size: 11px; }
  .lab .insight button { white-space: normal; min-width: 120px; max-width: 140px; text-align: left; }
}
@media (max-width: 800px) {
  .lab .experience { grid-template-columns: 1fr; }
  .lab .stage { min-height: 470px; }
  .lab .console { padding: 26px; }
  .lab .console-description { max-width: 500px; }
  .lab .console h2 br { display: none; }
  .lab .scenario-controls { max-width: none; }
  .lab-lead { display: none; }
  .lab .scenario small { display: none; }
  .lab .scenario { display: flex; align-items: center; gap: 8px; }
  .lab .scenario strong { font-size: 12px; }
  .lab .scenario > span { font-size: 10px; padding: 0; }
  .lab .product-main { gap: 12px; align-items: flex-start; }
  .lab .product-main img { width: 66px; height: 66px; }
  .lab .product-card { padding: 18px; }
  .lab .product-card h3 { font-size: 16px; }
  .lab .lab-cta { align-items: flex-start; flex-direction: column; }
  .lab .lab-cta-actions { align-items: flex-start; }
  .lab .journal { margin-top: 22px; }
}
@media (max-width: 540px) {
  .lab-intro { padding: 27px 0 22px; }
  .lab-intro h1 { font-size: 32px; }
  .lab-scenarios { gap: 6px; grid-template-columns: 1fr; }
  .lab .scenario { padding: 10px 12px; }
  .lab .scenario small { display: block; margin: 0 0 0 auto; font-size: 10px; }
  .lab .scenario strong { font-size: 12px; }
  .lab .stage { min-height: 375px; }
  .lab .stage-top { top: 14px; left: 13px; right: 13px; }
  .lab .stage-caption { font-size: 10px; }
  .lab .stage-caption > span { font-size: 9px; }
  .lab .lock-status { font-size: 10px; padding: 6px; max-width: 160px; }
  .lab .stage-bottom { bottom: 14px; left: 13px; right: 13px; }
  .lab .scene-views { top: 69px; left: 13px; right: 13px; max-width: none; }
  .lab .scene-views button { font-size: 10px; min-height: 30px; padding: 5px 7px; }
  .lab .rotate-hint { font-size: 9px; max-width: 80px; }
  .lab .view-tools button { min-height: 34px; padding: 7px; font-size: 10px; }
  .lab .view-tools button svg { width: 16px; height: 16px; }
  .lab .scene-overlay { bottom: 66px; left: 12px; right: 12px; }
  .lab .transfer { gap: 9px; padding: 7px 10px; font-size: 10px; }
  .lab .transfer small { font-size: 9px; }
  .lab .console { padding: 22px; }
  .lab .console h2 { font-size: 28px; }
  .lab .console-description { font-size: 14px; }
  .lab .console h2 br { display: block; }
  .lab .primary-action { font-size: 14px; }
  .lab .feedback { font-size: 12px; min-height: 48px; }
  .lab #events li { font-size: 11px; grid-template-columns: 40px 1fr; }
  .lab .insight { display: grid; grid-template-columns: 40px 1fr; gap: 13px; }
  .lab .insight button { grid-column: 2; margin-left: 0; max-width: none; padding: 0; }
  .lab .insight h3 { font-size: 14px; }
  .lab .insight p { font-size: 12px; }
  .lab-products { padding-top: 34px; }
  .lab-products .section-head { align-items: flex-start; flex-direction: column; gap: 13px; }
  .lab-products .section-head h2 { font-size: 25px; }
  .lab .product-grid { grid-template-columns: 1fr; }
  .lab .product-main img { width: 88px; height: 88px; }
  .lab .product-note { flex-direction: column; gap: 10px; }
  .lab .product-note a { text-align: left; }
  .lab .lab-cta h2 { font-size: 27px; }
}
@media (max-width: 360px) {
  .lab .scenario small { display: none; }
  .lab .view-tools button:first-child span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .lab *, .lab *::before, .lab *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* Keep the model stable while the console changes; touch targets remain reachable. */
@media(max-width:800px) {
  .lab .stage { min-height:460px; }
  .lab .scene-views button, .lab .view-tools button, .lab .role-choice button,
  .lab .extra-actions button, .lab #experiment-controls > button { min-height:44px; }
  .lab .code-field input { font-size:18px; scroll-margin-block:100px; }
  .lab .primary-action { scroll-margin-block:100px; }
}
.lab .code-field input:focus-visible { outline:2px solid var(--accent-light); outline-offset:3px; }

.lab .scenario { scroll-margin-top:100px; }

@media(pointer:coarse) and (max-height:600px) {
  .lab .experience { grid-template-columns:1fr; }
  .lab .stage { position:relative; top:0; height:380px; min-height:380px; }
  .lab .console { min-height:0; }
}

@media(max-width:800px) { .lab .small-action, .lab .reset, .lab .store-list button { min-height:44px; } .lab .reset { min-width:44px; justify-content:center; } .lab .experiments summary { padding-block:8px; } }

.lab .stage { scroll-margin-top:90px; }
@media(max-width:540px) { .lab .scenario small { display:none; } }

/* Contextual reading stays next to the exact model, including on narrow screens. */
.lab .product-reading { display:block; border-top:1px solid var(--border); padding-top:14px; font-size:13px; line-height:1.6; color:var(--accent-text); }
.lab .product-reading > span:first-child { display:block; color:var(--muted); font-size:10px; text-transform:uppercase; letter-spacing:.08em; margin-bottom:5px; }
.lab .product-reading:hover { text-decoration:underline; text-underline-offset:3px; }