* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 28px; }
body { margin: 0; background: var(--black); color: var(--white); font: 400 16px/1.62 var(--font-body); }
a { color: inherit; text-underline-offset: 5px; }
a:focus-visible, input:focus-visible + span { outline: 2px solid var(--white); outline-offset: 6px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, dl, dd { margin: 0; }
h1, h2, h3 { font-weight: 400; }
em { font-family: var(--font-accent); font-weight: 400; }
h1 { font-size: clamp(44px, 5vw, 72px); line-height: 1.1; letter-spacing: -.025em; }
h2 { font-size: clamp(36px, 4vw, 56px); line-height: 1.12; letter-spacing: -.02em; }
h3 { font-size: 28px; line-height: 1.3; }
.wrap { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }
.notice { padding: 10px 20px; text-align: center; font-size: 12px; line-height: 1.6; background: var(--deep-blue); color: var(--muted-dark); border-bottom: 1px solid var(--edge); }
.notice span { padding-inline: 8px; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 28px; }
.identity { display: flex; align-items: center; gap: 24px; text-decoration: none; }
.identity img { width: 130px; }
.identity span { border-left: 1px solid var(--edge); padding-left: 24px; font-size: 14px; }
nav { display: flex; gap: 28px; font-size: 14px; }
nav a { text-decoration: none; }
nav a:hover, footer a:hover { color: var(--muted-dark); }
.today { padding-top: 36px; padding-bottom: 100px; }
.hero { display: grid; grid-template-columns: 1.25fr 1fr; gap: 50px; align-items: center; }
.hero-copy { padding-block: 40px; }
.product-name { margin-bottom: 24px; font-size: 14px; color: var(--muted-dark); }
.lead { color: var(--muted-dark); max-width: 490px; margin-top: 24px; font-size: 18px; line-height: 1.65; }
.action { display: inline-flex; align-items: center; justify-content: center; gap: 20px; margin-top: 36px; background: var(--blue); color: var(--white); border-radius: var(--action-radius); padding: 15px 30px; font-size: 13px; font-weight: 500; text-transform: uppercase; text-decoration: none; transition: color .4s, background .4s; }
.action:hover { background: var(--white); color: var(--ink); }
.hero-art { width: 100%; aspect-ratio: 1; object-fit: cover; object-position: 60% center; border-radius: var(--image-radius); }
.product-brief { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; margin-top: 100px; padding-top: 50px; border-top: 1px solid var(--edge); }
.source-label { color: var(--muted-dark); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 20px; }
.brief-intro h2 { font-size: 40px; line-height: 1.2; }
.brief-intro > p:not(.source-label) { color: var(--muted-dark); margin-top: 20px; max-width: 440px; }
.source-link { display: inline-block; margin-top: 24px; font-size: 13px; }
.source-link span { padding-left: 8px; }
.product-facts > div { padding: 0 0 28px; }
.product-facts > div + div { border-top: 1px solid var(--edge); padding-top: 28px; }
dt { font-size: 18px; margin-bottom: 10px; }
dd { color: var(--muted-dark); font-size: 15px; line-height: 1.7; }
.evidence-note { color: var(--muted-dark); font-size: 12px; line-height: 1.7; }
.today > .evidence-note { max-width: 820px; margin-top: 30px; }
.memory { padding-block: 100px; border-top: 1px solid var(--edge); }
.memory-intro { max-width: 670px; }
.memory-intro .lead { max-width: 550px; }
.evidence-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; margin-top: 60px; }
.source-evidence { padding-right: 40px; }
.inference { padding-left: 40px; border-left: 1px solid var(--edge); }
.evidence-grid article > p:not(.source-label) { margin-top: 20px; color: var(--muted-dark); }
.continuity { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; margin-top: 50px; padding: 24px 0; font-size: 15px; color: var(--muted-dark); border-top: 1px solid var(--edge); }
.continuity > span[aria-hidden] { color: var(--white); }
.experiment { padding-block: 100px; border-top: 1px solid var(--edge); }
.experiment-intro { max-width: 670px; }
.experiment-intro .lead { max-width: 560px; }
footer { display: flex; justify-content: space-between; gap: 20px; padding-block: 30px; border-top: 1px solid var(--edge); color: var(--muted-dark); font-size: 13px; }
footer a { text-decoration: none; }
.skip { position: absolute; top: 12px; left: -10000px; }
.skip:focus { left: 20px; z-index: 3; padding: 12px; background: var(--black); }
@media (max-width: 991px) {
  .site-header { flex-wrap: wrap; }
  .hero { gap: 30px; }
  .product-brief { gap: 50px; }
  .evidence-grid { gap: 30px; }
  .source-evidence { padding-right: 10px; }
  .inference { padding-left: 30px; }
}
@media (max-width: 767px) {
  .notice { font-size: 11px; padding-block: 12px; }
  .notice span { padding-inline: 3px; }
  .site-header { gap: 22px; padding-block: 24px; }
  .identity { gap: 16px; }
  .identity span { padding-left: 16px; font-size: 12px; }
  .identity img { width: 110px; }
  nav { gap: 24px; font-size: 13px; }
  .today { padding-top: 12px; padding-bottom: 80px; }
  .hero { grid-template-columns: 1fr; gap: 30px; }
  .hero-copy { padding-block: 20px; }
  h1 { font-size: clamp(40px, 8.5vw, 58px); }
  .lead { font-size: 16px; }
  .hero-art { aspect-ratio: 1.65; }
  .product-brief, .evidence-grid { grid-template-columns: 1fr; gap: 40px; }
  .product-brief { margin-top: 70px; padding-top: 40px; }
  .brief-intro h2 { font-size: 32px; }
  .memory, .experiment { padding-block: 80px; }
  .source-evidence { padding: 0; }
  .inference { padding: 30px 0 0; border-left: 0; border-top: 1px solid var(--edge); }
  h3 { font-size: 25px; }
  .continuity { align-items: flex-start; gap: 12px; flex-direction: column; }
  .continuity > span[aria-hidden] { transform: rotate(90deg); margin-left: 3px; }
  footer { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .action { transition: none; }
}
[hidden] { display: none !important; }
button, select { font: inherit; color: inherit; }
button { cursor: pointer; }
button:focus-visible, select:focus-visible, .transcript:focus-visible, .event-log:focus-visible { outline: 2px solid var(--white); outline-offset: 4px; }
button:active { filter: brightness(.85); }
button:disabled { opacity: .45; cursor: default; }
.experiment-brief { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 50px; margin-block: 36px 50px; max-width: 900px; color: var(--muted-dark); font-size: 15px; }
.experiment-brief strong { color: var(--white); font-weight: 500; }
.experiment-brief .evidence-note { grid-column: 1 / -1; }
.lab-toolbar { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; padding-block: 20px; border-block: 1px solid var(--edge); }
.view-switch { display: flex; gap: 8px; }
.view-switch button, .quiet-button { background: transparent; border: 1px solid var(--edge); border-radius: var(--action-radius); padding: 10px 18px; min-height: 44px; font-size: 13px; }
.view-switch button[aria-pressed="true"] { background: var(--white); color: var(--ink); border-color: var(--white); }
.conditions { display: flex; gap: 8px; align-items: center; padding: 0; margin: 0; border: 0; }
.conditions legend { float: left; padding: 0; margin-right: 12px; font-size: 12px; color: var(--muted-dark); }
.conditions label { cursor: pointer; position: relative; }
.conditions input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.conditions label span { display: flex; align-items: center; min-height: 44px; padding: 10px 18px; border: 1px solid var(--edge); border-radius: var(--action-radius); color: var(--muted-dark); font-size: 13px; }
.conditions input:checked + span { background: var(--blue); color: var(--white); border-color: var(--blue); }
.lab-disclosure { color: var(--muted-dark); font-size: 12px; line-height: 1.7; max-width: 800px; margin: 18px 0 32px; }
.lab-workspace { display: grid; grid-template-columns: minmax(0, 390px) minmax(0, 1fr); gap: 60px; align-items: start; }
.phone { border: 1px solid var(--edge); border-radius: 26px; background: var(--deep-blue); overflow: hidden; width: 100%; height: 740px; display: flex; flex-direction: column; }
.phone-header { display: flex; align-items: center; gap: 12px; padding: 22px 18px; border-bottom: 1px solid var(--edge); }
.nova-avatar { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--blue); font-size: 20px; flex: none; }
.phone-header h3 { font-size: 18px; line-height: 1.3; }
.phone-header p, #message-count { color: var(--muted-dark); font-size: 10px; line-height: 1.5; }
#message-count { margin-left: auto; white-space: nowrap; }
.transcript { list-style: none; padding: 22px 16px; margin: 0; flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; display: flex; flex-direction: column; gap: 16px; scrollbar-width: thin; }
.chat-message { flex: none; max-width: 94%; }
.chat-message.user { align-self: flex-end; }
.chat-message > span { display: block; margin-bottom: 6px; color: var(--muted-dark); font-size: 11px; }
.chat-message.user > span { text-align: right; }
.chat-message > p { padding: 14px 16px; border-radius: var(--image-radius); background: var(--black); border: 1px solid var(--edge); font-size: 14px; line-height: 1.6; }
.chat-message.user > p { background: rgb(255 255 255 / 8%); border-color: transparent; }
.chat-message.review-message { max-width: 100%; width: 100%; }
.review-cards { display: grid; gap: 10px; margin-top: 12px; }
.review-card { padding: 12px; border: 1px solid var(--edge); border-radius: var(--image-radius); background: var(--black); }
.review-card-header { display: flex; justify-content: space-between; align-items: center; color: var(--muted-dark); font-size: 11px; gap: 8px; }
.review-value { display: block; margin-top: 4px; font-size: 15px; font-weight: 400; }
.memory-actions { display: flex; gap: 8px; margin-top: 10px; }
.memory-actions button { padding: 7px 12px; min-width: 64px; min-height: 44px; font-size: 12px; background: transparent; border: 1px solid var(--edge); border-radius: var(--action-radius); }
.memory-actions button.keep { background: var(--blue); border-color: var(--blue); }
.memory-editor { display: block; width: 100%; min-height: 44px; margin-top: 10px; padding: 8px; border: 1px solid var(--white); border-radius: 6px; background: var(--ink); font-size: 14px; }
.phone-composer { padding: 18px 16px; border-top: 1px solid var(--edge); }
#answer-hint { margin-bottom: 12px; color: var(--muted-dark); font-size: 11px; }
.answer-choices { display: flex; flex-wrap: wrap; gap: 8px; }
.answer-choices button, .continue-button { min-height: 44px; padding: 10px 16px; background: var(--blue); color: var(--white); border: 0; border-radius: var(--action-radius); font-size: 13px; }
.continue-button { width: 100%; }
.inspector { min-width: 0; }
.panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.panel-heading h3 { font-size: 24px; }
.panel-heading > span { font-size: 12px; color: var(--muted-dark); }
.memory-panel { padding: 24px 0 30px; border-bottom: 1px solid var(--edge); }
.memory-list { padding: 0; margin: 24px 0 0; list-style: none; display: grid; gap: 12px; }
.memory-item { display: grid; grid-template-columns: 100px 1fr auto; gap: 16px; align-items: baseline; padding: 14px 0; border-top: 1px solid var(--edge); font-size: 14px; }
.memory-item span:first-child { color: var(--muted-dark); }
.memory-item strong { font-weight: 400; overflow-wrap: anywhere; }
.memory-item small { font-size: 11px; color: var(--muted-dark); }
.memory-empty { color: var(--muted-dark); font-size: 14px; padding: 20px 0; }
.panel-note { color: var(--muted-dark); font-size: 12px; line-height: 1.7; margin-top: 16px; }
.events-panel { padding-top: 30px; }
.event-log { list-style: none; padding: 0; margin: 20px 0 0; max-height: 270px; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.event { padding: 12px 0; border-top: 1px solid var(--edge); }
.event-heading { display: flex; justify-content: space-between; gap: 16px; font-size: 13px; }
.event-heading time { font-size: 11px; color: var(--muted-dark); }
.event pre { margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--muted-dark); font: 11px/1.6 ui-monospace, monospace; }
.synthetic-banner { padding: 22px 26px; border: 1px solid var(--edge); border-radius: var(--image-radius); background: var(--deep-blue); }
.synthetic-banner strong { font-weight: 500; }
.synthetic-banner p { color: var(--muted-dark); margin-top: 8px; font-size: 14px; }
.results-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; margin-top: 40px; }
.return-chart { margin: 0; }
.return-chart h3 { font-size: 28px; }
.chart { margin-top: 30px; }
.chart-axis { display: flex; justify-content: space-between; margin-left: 90px; color: var(--muted-dark); font-size: 11px; }
.chart-row { display: grid; grid-template-columns: 90px 1fr; align-items: center; margin-top: 22px; font-size: 13px; }
.chart-plot { border-left: 1px solid var(--edge); }
.chart-bar { min-height: 52px; display: flex; align-items: center; justify-content: flex-end; padding: 10px 14px; border-radius: 0 4px 4px 0; }
.control-bar { background: var(--white); color: var(--ink); }
.treatment-bar { background: var(--blue); border: 1px solid var(--muted-dark); }
.chart-bar strong { font-size: 20px; font-weight: 500; }
.return-chart figcaption { margin-top: 28px; color: var(--muted-dark); font-size: 13px; }
.results-table { border-collapse: collapse; width: 100%; margin-top: 30px; font-size: 13px; }
.results-table caption { text-align: left; margin-bottom: 12px; color: var(--muted-dark); font-size: 12px; }
.results-table th, .results-table td { text-align: left; padding: 12px 8px 12px 0; border-top: 1px solid var(--edge); font-weight: 400; }
.results-table thead { color: var(--muted-dark); }
.decision { padding-top: 4px; }
.decision h3 { font-size: 28px; line-height: 1.4; }
.decision > p:not(.source-label) { color: var(--muted-dark); margin-top: 20px; }
.decision button { margin-top: 30px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (max-width: 991px) {
  .lab-workspace { gap: 30px; grid-template-columns: minmax(0, 360px) minmax(0, 1fr); }
  .memory-item { grid-template-columns: 80px 1fr; gap: 8px 16px; }
  .memory-item small { grid-column: 2; }
  .results-grid { gap: 40px; }
}
@media (max-width: 767px) {
  .experiment-brief { grid-template-columns: 1fr; gap: 16px; }
  .lab-toolbar { justify-content: flex-start; gap: 18px; }
  .conditions { flex-wrap: wrap; }
  .conditions legend { margin-bottom: 8px; float: none; }
  .lab-workspace, .results-grid { grid-template-columns: 1fr; gap: 36px; }
  .phone { max-width: 390px; height: 730px; margin-inline: auto; }
  .phone-header { padding: 20px 14px; gap: 10px; }
  .phone-header p { max-width: 130px; }
  .memory-panel { padding-top: 0; }
  .memory-item { grid-template-columns: 90px 1fr auto; }
  .memory-item small { grid-column: auto; }
  .results-grid { gap: 44px; }
  .synthetic-banner { padding: 20px; }
  .chart-axis { margin-left: 78px; }
  .chart-row { grid-template-columns: 78px 1fr; }
}