:root {
  --paper: #f7f7f4;
  --paper-dark: #ecece6;
  --ink: #202625;
  --muted: #6c7470;
  --line: #d7d9d2;
  --line-dark: #aeb5ae;
  --accent: #a84e3c;
  --accent-soft: #f1ded7;
  --blue: #3e6d78;
  --blue-soft: #dfeaed;
  --green: #4b7258;
  --green-soft: #e1ebe1;
  --amber: #a9792d;
  --dark: #293532;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.55; }
a { color: inherit; }
button { font: inherit; }
::selection { color: var(--paper); background: var(--accent); }
[hidden] { display: none !important; }
.site-shell { overflow: hidden; }
.content-width { width: min(1120px, calc(100% - 48px)); margin-inline: auto; }
.mono { font-family: var(--mono); letter-spacing: .03em; }
.eyebrow, .note-kicker { margin: 0 0 17px; color: var(--accent); font: 700 10px/1.2 var(--mono); letter-spacing: .13em; text-transform: uppercase; }
.note-kicker { margin-bottom: 12px; color: var(--muted); letter-spacing: .1em; }

.site-header { position: sticky; z-index: 10; top: 0; width: min(1120px, calc(100% - 48px)); min-height: 72px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 94%, transparent); backdrop-filter: blur(12px); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 14px; font-weight: 650; text-decoration: none; white-space: nowrap; }
.brand-initials { display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid var(--ink); color: var(--ink); font: 700 10px var(--mono); letter-spacing: -.08em; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 17px; }
.site-nav a { color: var(--muted); font: 10px var(--mono); text-decoration: none; white-space: nowrap; }
.site-nav a:hover, .site-nav a.is-active { color: var(--accent); }

.story-section { position: relative; padding: 78px 0 102px; scroll-margin-top: 75px; }
.story-section--opening { padding-top: 64px; }
.story-section--lab { border-bottom: 1px solid var(--line); }
.story-section--ops { background: var(--paper-dark); }
.story-section--sono { color: var(--paper); background: var(--dark); }
.story-section--corridor { background: var(--paper); }
.story-grid { display: grid; grid-template-columns: minmax(0, .76fr) minmax(0, 1.24fr); gap: clamp(45px, 7vw, 92px); align-items: center; }
.story-grid--opening { align-items: end; }
.story-grid--reverse .story-copy { order: 2; }
.story-grid--reverse .showcase { order: 1; }
.story-copy { min-width: 0; }
.story-copy h1, .story-copy h2 { max-width: 635px; margin: 0 0 22px; font: 600 clamp(42px, 5.5vw, 70px)/.99 var(--sans); letter-spacing: -.075em; }
.story-copy h2 { font-size: clamp(37px, 4.7vw, 60px); }
.story-lede { max-width: 520px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.5; }
.story-section--sono .story-lede { color: #c5d0cc; }
.story-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 540px; margin-top: 31px; border-top: 1px solid var(--line-dark); }
.story-section--sono .story-facts { border-color: rgba(247,247,244,.25); }
.story-facts div { min-width: 0; padding: 13px 15px 0 0; }
.story-facts div + div { padding-left: 15px; border-left: 1px solid var(--line); }
.story-section--sono .story-facts div + div { border-color: rgba(247,247,244,.18); }
.story-facts span { display: block; margin-bottom: 6px; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.story-section--sono .story-facts span { color: #aebbb6; }
.story-facts strong { display: block; font-size: 12px; font-weight: 600; }
.story-section--sono .story-facts strong { color: var(--paper); }
.story-actions, .explore-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.story-boundary { max-width: 515px; margin: 23px 0 0; color: var(--muted); font: 10px/1.65 var(--mono); }
.story-section--sono .story-boundary { color: #aebbb6; }
.story-boundary strong { color: var(--ink); }
.story-section--sono .story-boundary strong { color: #e6bb69; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 43px; padding: 10px 15px; border: 1px solid var(--line-dark); border-radius: 4px; cursor: pointer; font-size: 12px; text-decoration: none; transition: border-color .15s ease, background .15s ease, color .15s ease; }
.button:hover { border-color: var(--accent); }
.button:focus-visible, .site-nav a:focus-visible, .brand:focus-visible, .step-rail button:focus-visible, .dialog-close:focus-visible, .sono-instrument-tab:focus-visible, .sono-station-node:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.button-dark { border-color: var(--ink); color: var(--paper); background: var(--ink); }
.button-dark:hover { border-color: var(--accent); color: var(--paper); background: var(--accent); }
.button-quiet { color: var(--muted); background: transparent; }
.button-quiet:hover { color: var(--accent); background: var(--accent-soft); }
.button-small { min-height: 35px; padding: 7px 11px; font: 10px var(--mono); }
.button-disabled { color: var(--muted); background: var(--paper-dark); cursor: default; }
.button-disabled:hover { border-color: var(--line-dark); }
.story-section--sono .button-quiet { color: #c5d0cc; border-color: rgba(247,247,244,.35); }
.story-section--sono .button-quiet:hover { color: var(--paper); border-color: #cf806d; background: rgba(247,247,244,.08); }
.story-section--sono .showcase .button-quiet { color: var(--muted); border-color: var(--line-dark); }
.story-section--sono .showcase .button-quiet:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

.showcase { min-width: 0; padding: 15px; border: 1px solid var(--line-dark); background: #fbfbf8; box-shadow: 8px 10px 0 rgba(32,38,37,.08); }
.story-section--sono .showcase { border-color: rgba(247,247,244,.35); box-shadow: 8px 10px 0 rgba(0,0,0,.17); }
.showcase-head { display: flex; justify-content: space-between; gap: 14px; align-items: center; min-height: 24px; margin-bottom: 11px; }
.showcase-label { color: var(--accent); font: 700 10px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.showcase-status { color: var(--muted); font: 9px var(--mono); text-align: right; }
.video-frame { position: relative; overflow: hidden; aspect-ratio: 16 / 9; border: 1px solid var(--line); background: #e1e5e1; }
.story-video { display: block; width: 100%; height: 100%; object-fit: cover; background: #e1e5e1; }
.video-cover-note { position: absolute; inset: auto 12px 12px; padding: 8px 10px; color: var(--paper); background: rgba(32,38,37,.86); font: 10px var(--mono); }
.showcase-controls { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.step-rail { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 16px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.step-rail li { position: relative; padding: 11px 5px 0 0; color: var(--muted); font: 9px/1.35 var(--mono); }
.step-rail li::before { content: ""; display: block; width: 6px; height: 6px; margin: -15px 0 8px; border: 1px solid var(--line-dark); border-radius: 50%; background: var(--paper); }
.step-rail li.is-current { color: var(--ink); }
.step-rail li.is-current::before { border-color: var(--accent); background: var(--accent); }
.story-section--sono .step-rail { border-color: rgba(247,247,244,.25); }
.story-section--sono .step-rail li { color: #aebbb6; }
.story-section--sono .step-rail li::before { border-color: rgba(247,247,244,.4); background: var(--dark); }
.story-section--sono .step-rail li.is-current { color: var(--paper); }
.story-section--sono .step-rail li.is-current::before { border-color: #e6bb69; background: #e6bb69; }

.explore-panel { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line-dark); }
.story-section--sono .explore-panel { border-color: rgba(247,247,244,.3); }
.explore-heading { display: flex; justify-content: space-between; gap: 20px; align-items: start; margin-bottom: 15px; }
.explore-heading h2 { margin: 7px 0 0; font: 600 clamp(25px, 3vw, 38px)/1.04 var(--sans); letter-spacing: -.06em; }
.embed-frame, .map-frame { overflow: hidden; border: 1px solid var(--line-dark); background: #fff; }
.embed-frame iframe { display: block; width: 100%; height: 610px; border: 0; background: #fff; }
.embed-note { margin: 11px 0 0; color: var(--muted); font: 10px/1.55 var(--mono); }
.embed-note strong { color: var(--ink); }

.work-index { display: grid; grid-template-columns: 1.1fr repeat(4, 1fr); gap: 0; margin-top: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.work-index > * { min-width: 0; padding: 15px 11px 16px 0; }
.work-index a { border-left: 1px solid var(--line); padding-left: 13px; color: var(--muted); font-size: 11px; text-decoration: none; }
.work-index a:hover { color: var(--accent); }
.work-index a span { display: block; margin-bottom: 4px; color: var(--accent); font: 9px var(--mono); }
.work-index-label { color: var(--muted); font: 9px var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.sono-playback { min-height: 424px; }
.sono-playback-stage { position: relative; min-height: 368px; padding: 11px; border: 1px solid var(--line); background: var(--paper); }
.sono-phase { display: none; min-height: 342px; }
.sono-phase.is-current { display: block; }
.sono-phase-heading { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin: 0 0 8px; color: var(--ink); }
.sono-phase-heading strong { font: 700 10px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.sono-phase-heading span { color: var(--muted); font: 10px var(--mono); }
.sono-phase .chart-card { margin-top: 0; padding: 0; border: 0; }
.sono-phase .chart-title { padding: 0 0 4px; }
.sono-phase .data-chart { max-height: 270px; }
.sono-artifact-image { display: block; width: 100%; height: 314px; object-fit: contain; object-position: center; border: 1px solid var(--line); background: #fff; }
.sono-phase-caption { min-height: 39px; margin: 8px 0 0; color: var(--muted); font: 10px/1.45 var(--mono); }
.sono-playback-footer { display: flex; justify-content: space-between; gap: 15px; align-items: center; margin-top: 10px; }
.sono-playback-caption { margin: 0; color: var(--muted); font: 10px var(--mono); }
.sono-playback-counter { color: var(--accent); font: 700 10px var(--mono); }
.sono-phase-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 11px; }
.sono-phase-tab { padding: 7px 9px; border: 1px solid var(--line-dark); color: var(--muted); background: transparent; cursor: pointer; font: 9px var(--mono); }
.sono-phase-tab.is-current { color: var(--ink); border-color: var(--accent); background: var(--accent-soft); }

.map-frame { aspect-ratio: 4 / 3; min-height: 420px; }
.map-frame iframe { display: block; width: 100%; height: 100%; min-height: 420px; border: 0; background: #e8ece8; }
.showcase-map { padding-bottom: 18px; }

.aside-note { display: grid; grid-template-columns: 1fr 2fr; gap: 50px; padding-top: 90px; padding-bottom: 115px; border-top: 1px solid var(--line); }
.aside-note blockquote { max-width: 690px; margin: 0 0 16px; padding-left: 24px; border-left: 2px solid var(--accent); font: 500 clamp(28px, 4vw, 48px)/1.1 var(--serif); letter-spacing: -.04em; }
.aside-note > p:last-child { grid-column: 2; max-width: 440px; margin: 0; color: var(--muted); font-size: 14px; }
.about-section { padding: 105px 0 120px; background: var(--paper-dark); }
.about-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 80px; }
.about-copy { max-width: 550px; color: var(--muted); font-size: 17px; }
.about-copy p { margin-bottom: 19px; }
.about-list { margin: 29px 0 31px; padding: 0; list-style: none; color: var(--ink); font-size: 14px; }
.about-list li { padding: 8px 0; border-bottom: 1px solid var(--line-dark); }
.about-list li::before { content: "→"; margin-right: 10px; color: var(--accent); }
.about-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.contact-section { padding-top: 110px; padding-bottom: 105px; }
.contact-section h2 { max-width: 760px; margin: 0; font: 600 clamp(40px, 5vw, 67px)/1 var(--sans); letter-spacing: -.075em; }
.contact-note { max-width: 480px; margin: 28px 0 0; color: var(--muted); font: 12px var(--mono); }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; padding-bottom: 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.site-footer strong { color: var(--ink); font-weight: 650; }

.project-dialog { width: min(700px, calc(100% - 28px)); max-height: min(760px, calc(100% - 28px)); padding: 0; border: 1px solid var(--ink); border-radius: 4px; color: var(--ink); background: var(--paper); box-shadow: 10px 12px 0 rgba(32,38,37,.11); }
.project-dialog::backdrop { background: rgba(32, 38, 37, .43); }
.dialog-inner { padding: 28px; }
.dialog-top { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); }
.dialog-top .eyebrow { margin-bottom: 16px; }
.dialog-close { width: 29px; height: 29px; border: 1px solid var(--line-dark); border-radius: 50%; color: var(--muted); background: transparent; cursor: pointer; font-size: 21px; line-height: 1; }
.dialog-close:hover { color: var(--accent); border-color: var(--accent); }
.dialog-hero { display: flex; justify-content: space-between; gap: 20px; align-items: start; margin: 31px 0 10px; }
.dialog-hero h2 { margin: 0; font: 600 clamp(39px, 7vw, 62px)/1 var(--sans); letter-spacing: -.075em; }
.dialog-maturity { color: var(--accent); font: 10px var(--mono); text-transform: uppercase; white-space: nowrap; }
.dialog-lede { max-width: 610px; margin: 0; color: var(--muted); font-size: 17px; }
.dialog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 19px; margin-top: 30px; border-top: 1px solid var(--line); }
.dialog-block { padding: 17px 0; border-bottom: 1px solid var(--line); }
.dialog-block strong, .dialog-proof strong { display: block; margin-bottom: 8px; color: var(--accent); font: 700 10px var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.dialog-block p, .dialog-proof p { margin: 0; color: var(--muted); font-size: 13px; }
.dialog-proof { margin-top: 20px; padding: 17px; border-left: 2px solid var(--accent); background: var(--paper-dark); }
.dialog-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.tag { padding: 5px 7px; border: 1px solid var(--line-dark); color: var(--muted); font: 10px var(--mono); }

.demo-sandbox { border: 1px solid var(--line-dark); background: #fbfbf8; }
.demo-tabs { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--line-dark); background: var(--paper-dark); }
.demo-tab { padding: 12px 15px; border: 0; border-right: 1px solid var(--line); color: var(--muted); background: transparent; cursor: pointer; font: 700 10px var(--mono); text-transform: uppercase; }
.demo-tab:hover, .demo-tab.is-active { color: var(--ink); background: var(--paper); }
.demo-tab.is-active { box-shadow: inset 0 -2px 0 var(--accent); }
.demo-tab-reset { margin-left: auto; color: var(--accent); }
.demo-panel { padding: 25px; }
.demo-panel-heading { margin-bottom: 21px; }
.demo-panel-label { display: block; margin-bottom: 9px; color: var(--accent); font: 700 10px var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.demo-panel-heading h4 { margin: 0 0 6px; font: 600 clamp(22px, 3vw, 31px)/1.1 var(--sans); letter-spacing: -.05em; }
.demo-panel-heading p { max-width: 670px; margin: 0; color: var(--muted); font-size: 13px; }
.demo-form-grid { display: grid; grid-template-columns: minmax(0, 1fr) 140px; gap: 12px; margin-top: 20px; }
.demo-form-grid-three { grid-template-columns: 1fr 1fr 1.3fr; }
.demo-form-grid label { display: grid; gap: 6px; color: var(--muted); font: 700 10px var(--mono); text-transform: uppercase; }
.demo-form-grid input, .demo-form-grid select { width: 100%; min-height: 41px; padding: 9px 10px; border: 1px solid var(--line-dark); border-radius: 3px; color: var(--ink); background: var(--paper); font: 13px var(--sans); }
.demo-record-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; margin-top: 23px; }
.demo-record { padding: 16px; border: 1px solid var(--line); background: var(--paper); }
.demo-record-head { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 11px; border-bottom: 1px solid var(--line); }
.demo-record-head span, .demo-record-head strong, .demo-active-record span { color: var(--muted); font: 10px var(--mono); text-transform: uppercase; }
.demo-record-head strong { color: var(--accent); }
.demo-record ul { margin: 0 0 15px; padding: 0; list-style: none; }
.demo-record li { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.demo-record li strong { color: var(--ink); font: 700 11px var(--mono); }
.demo-empty { display: block !important; color: var(--muted); font-style: italic; }
.demo-active-record { margin: 14px 0; padding: 14px; border-left: 2px solid var(--accent); background: var(--paper-dark); }
.demo-active-record strong { display: block; margin: 5px 0; font-size: 15px; }
.demo-active-record p { margin: 0 0 14px; color: var(--muted); font-size: 12px; }
.demo-active-empty { min-height: 88px; padding-top: 18px; }
.demo-local-note { margin: 18px 0 0; padding: 12px 14px; border-left: 2px solid var(--blue); color: var(--muted); background: var(--blue-soft); font: 11px/1.55 var(--mono); }
.demo-local-note strong { color: var(--ink); }
.button:disabled { border-color: var(--line); color: var(--muted); background: var(--paper-dark); cursor: not-allowed; opacity: .65; }

.demo-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 17px 25px; margin: 17px 0 19px; padding: 12px 14px; border: 1px solid var(--line); background: var(--paper); }
.demo-controls label { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--muted); font: 10px var(--mono); text-transform: uppercase; }
.demo-controls input[type="range"] { width: min(280px, 60vw); accent-color: var(--accent); }
.demo-controls output { min-width: 50px; color: var(--ink); font-weight: 700; }
.demo-check input { accent-color: var(--accent); }
.chart-card { margin-top: 16px; padding: 14px 14px 10px; border: 1px solid var(--line); background: var(--paper); }
.chart-title { display: flex; justify-content: space-between; gap: 15px; margin: 0 0 5px; }
.chart-title strong { color: var(--ink); font: 700 10px var(--mono); text-transform: uppercase; }
.chart-title span { color: var(--muted); font: 10px var(--mono); }
.data-chart { display: block; width: 100%; height: auto; overflow: visible; }
.data-chart text { fill: var(--muted); font: 9px var(--mono); }
.data-chart .chart-axis-label { fill: var(--muted); font-size: 9px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 12px; color: var(--muted); font: 10px var(--mono); }
.chart-legend span { display: inline-flex; align-items: center; gap: 5px; }
.chart-legend i { display: inline-block; width: 17px; height: 2px; }
.chart-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.chart-pair .chart-card { min-width: 0; }
.selected-readout { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 15px; padding: 13px 14px; border-left: 2px solid var(--accent); color: var(--muted); background: var(--paper-dark); font: 11px var(--mono); }
.selected-readout strong { color: var(--ink); }
.metric-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 16px; }
.metric-card { min-height: 79px; padding: 13px; border: 1px solid var(--line); background: var(--paper); }
.metric-card span, .metric-card small { display: block; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.metric-card strong { display: block; margin: 6px 0 2px; color: var(--ink); font: 600 19px var(--sans); letter-spacing: -.04em; }
.metric-card small { font-size: 9px; text-transform: none; }
.demo-source-note { margin: 17px 0 0; color: var(--muted); font: 10px/1.6 var(--mono); }
.heatmap-scale { display: flex; align-items: center; gap: 8px; margin-top: 5px; color: var(--muted); font: 9px var(--mono); }
.heatmap-scale i { display: block; width: 100px; height: 7px; background: linear-gradient(90deg, #2d7d7d, #c37d37); }
.artifact-preview { margin-top: 16px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.artifact-preview summary { padding: 12px 0; color: var(--accent); cursor: pointer; font: 700 10px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.artifact-preview img { display: block; width: 100%; max-height: 460px; object-fit: contain; object-position: left center; margin-bottom: 14px; background: #fff; }

@media (max-width: 960px) {
  .site-nav { gap: 11px; }
  .site-nav a:nth-child(4) { display: none; }
  .story-grid { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 45px; }
  .story-copy h1, .story-copy h2 { font-size: clamp(38px, 5.2vw, 60px); }
  .work-index { grid-template-columns: 1.1fr repeat(4, 1fr); }
}

@media (max-width: 780px) {
  .content-width, .site-header { width: calc(100% - 32px); }
  .site-header { min-height: 62px; }
  .site-nav { gap: 12px; }
  .site-nav a:nth-child(n+3) { display: none; }
  .story-section { padding: 65px 0 80px; }
  .story-grid, .story-grid--reverse { grid-template-columns: 1fr; gap: 42px; }
  .story-grid--reverse .story-copy, .story-grid--reverse .showcase { order: initial; }
  .story-copy h1, .story-copy h2 { max-width: 650px; font-size: clamp(40px, 10vw, 58px); }
  .story-lede { font-size: 16px; }
  .showcase { box-shadow: 5px 7px 0 rgba(32,38,37,.08); }
  .work-index { grid-template-columns: repeat(2, 1fr); }
  .work-index-label { grid-column: 1 / -1; padding-bottom: 8px; }
  .work-index a:nth-of-type(odd) { border-left: 0; padding-left: 0; }
  .about-grid { grid-template-columns: 1fr; gap: 35px; }
  .aside-note { display: block; padding-top: 68px; padding-bottom: 80px; }
  .aside-note blockquote { margin-top: 30px; }
  .aside-note > p:last-child { margin: 22px 0 0 26px; }
  .embed-frame iframe { height: 550px; }
}

@media (max-width: 560px) {
  .brand { font-size: 12px; }
  .site-nav { gap: 8px; }
  .site-nav a:nth-child(2) { display: none; }
  .story-section { scroll-margin-top: 64px; }
  .story-facts { grid-template-columns: 1fr; }
  .story-facts div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .story-section--sono .story-facts div + div { border-top-color: rgba(247,247,244,.18); }
  .story-actions .button { width: 100%; }
  .showcase-head { display: block; }
  .showcase-status { display: block; margin-top: 5px; text-align: left; }
  .step-rail { gap: 5px; }
  .step-rail li { font-size: 8px; }
  .showcase-controls .button { flex: 1 1 auto; }
  .explore-heading { display: block; }
  .explore-heading .button { margin-top: 14px; }
  .embed-frame iframe { height: 500px; }
  .map-frame { width: 100%; height: 360px; min-height: 0; aspect-ratio: auto; }
  .map-frame iframe { width: 100%; height: 100%; min-height: 0; }
  .demo-panel { padding: 16px; }
  .demo-form-grid, .demo-form-grid-three, .demo-record-grid, .chart-pair, .metric-grid { grid-template-columns: 1fr; }
  .demo-controls { align-items: flex-start; flex-direction: column; }
  .demo-controls input[type="range"] { width: min(100%, 310px); }
  .chart-title { display: block; }
  .chart-title span { display: block; margin-top: 5px; }
  .site-footer { display: block; }
  .site-footer > span { display: block; margin-top: 9px; }
  .dialog-inner { padding: 22px; }
  .dialog-hero { display: block; }
  .dialog-maturity { display: inline-block; margin-top: 12px; }
  .dialog-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* Wide, media-first project stages. The text introduces the question; the artifact gets the room. */
.story-section .story-grid,
.story-section .story-grid--reverse,
.story-section .story-grid--opening,
.story-section .story-grid--corridor { display: block; max-width: 1240px; }
.story-section .story-copy { max-width: 820px; margin: 0 0 34px; }
.story-section .story-copy h1,
.story-section .story-copy h2 { max-width: 900px; }
.story-section .story-copy .story-lede { max-width: 720px; }
.story-section .showcase { width: 100%; padding: 18px; box-shadow: 10px 12px 0 rgba(32,38,37,.08); }
.story-section--sono .showcase { box-shadow: 10px 12px 0 rgba(0,0,0,.18); }
.showcase-video .video-frame { width: 100%; aspect-ratio: 16 / 9; min-height: 0; border-color: #c9d0cb; background: #151c1b; }
.showcase-video .story-video { object-fit: contain; background: #151c1b; }
.showcase-video .video-frame:fullscreen { width: 100vw; height: 100vh; border: 0; background: #111817; }
.showcase-video .video-frame:fullscreen .story-video { width: 100%; height: 100%; object-fit: contain; }
.showcase-video.is-ending .story-video { filter: blur(7px); opacity: .68; transform: scale(1.035); transition: filter .45s ease, opacity .45s ease, transform .45s ease; }
.showcase-map-demo .video-frame { background: #111817; }
.video-end-card { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 11px; padding: clamp(24px, 6vw, 80px); color: var(--paper); background: linear-gradient(90deg, rgba(17,24,23,.92), rgba(17,24,23,.63) 58%, rgba(17,24,23,.26)); }
.video-end-card[hidden] { display: none; }
.video-end-card strong { max-width: 520px; font: 600 clamp(27px, 4vw, 52px)/1.02 var(--sans); letter-spacing: -.06em; }
.video-end-card a { display: inline-flex; margin-top: 7px; padding: 10px 13px; border: 1px solid rgba(247,247,244,.65); color: var(--paper); background: rgba(17,24,23,.34); font: 700 11px var(--mono); text-decoration: none; }
.video-end-card a:hover { border-color: #e6bb69; color: #e6bb69; }
.live-handoff { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 17px; align-items: start; padding: 25px; border: 1px solid var(--line-dark); background: var(--paper-dark); }
.live-handoff-mark { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--accent); color: var(--accent); font: 24px var(--sans); }
.live-handoff h3 { max-width: 650px; margin: 8px 0 7px; font: 600 clamp(23px, 3vw, 34px)/1.05 var(--sans); letter-spacing: -.055em; }
.live-handoff p { max-width: 680px; margin: 0; color: var(--muted); font: 12px/1.6 var(--mono); }
.step-rail { margin-top: 19px; }
.step-rail li { min-width: 0; }
.step-rail .step-link { display: block; width: 100%; padding: 0 8px 0 0; border: 0; color: inherit; background: transparent; cursor: pointer; text-align: left; font: 700 9px/1.35 var(--mono); }
.step-rail .step-link span { display: block; margin-top: 4px; color: inherit; font-weight: 400; }
.step-rail li.is-past { color: var(--ink); }
.step-rail li.is-past::before { border-color: var(--blue); background: var(--blue); }
.story-section--sono .step-rail .step-link { color: inherit; }

/* SonoLab's first surface is an instrument, not a screenshot carousel. */
.sono-instrument { color: var(--ink); border: 1px solid var(--line-dark); background: #f7f7f4; }
.sono-instrument-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding: 20px 22px 16px; border-bottom: 1px solid var(--line); }
.sono-instrument-head h3 { margin: 7px 0 0; font: 600 clamp(25px, 3vw, 42px)/1 var(--sans); letter-spacing: -.065em; }
.sono-instrument-mode { padding-top: 4px; color: var(--accent); font: 700 9px var(--mono); letter-spacing: .08em; text-align: right; }
.sono-instrument-visual { padding: 16px; background: #eef2ee; }
.sono-phase-frame { display: grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: 14px; align-items: stretch; }
.sono-phase-frame--fit { grid-template-columns: minmax(0, 1.4fr) minmax(225px, .6fr); }
.sono-fit-visual { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; min-width: 0; }
.sono-phase-frame .chart-card { min-width: 0; margin: 0; }
.sono-geometry-card, .sono-survey-artifact { min-width: 0; padding: 14px; border: 1px solid var(--line); background: #fbfbf8; }
.sono-geometry-card p, .sono-survey-artifact p { margin: 9px 0 0; color: var(--muted); font: 10px/1.45 var(--mono); }
.sono-pipe-svg { display: block; width: 100%; min-height: 250px; }
.sono-svg-label { font: 700 10px var(--mono); letter-spacing: .08em; }
.sono-svg-note { font: 10px var(--mono); }
.sono-survey-visual { min-width: 0; }
.sono-survey-visual .chart-card { margin: 0; }
.sono-survey-artifact .sono-artifact-image { width: 100%; height: 100%; min-height: 300px; border: 0; }
.sono-station-rail { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 7px; margin-top: 10px; }
.sono-station-node { min-width: 0; padding: 8px 4px; border: 1px solid var(--line-dark); color: var(--muted); background: #fbfbf8; cursor: pointer; text-align: left; }
.sono-station-node span { display: block; color: var(--accent); font: 700 9px var(--mono); }
.sono-station-node small { display: block; margin-top: 3px; color: inherit; font: 9px var(--mono); }
.sono-station-node.is-selected { border-color: var(--accent); color: var(--ink); background: var(--accent-soft); box-shadow: inset 0 -2px 0 var(--accent); }
.sono-instrument-readout { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fbfbf8; }
.sono-instrument-readout > div { min-height: 91px; padding: 15px 18px; border-right: 1px solid var(--line); }
.sono-instrument-readout > div:last-child { border-right: 0; }
.sono-instrument-readout span, .sono-instrument-readout small { display: block; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.sono-instrument-readout strong { display: block; margin: 7px 0 4px; color: var(--ink); font: 600 24px var(--sans); letter-spacing: -.045em; }
.sono-instrument-readout small { text-transform: none; }
.sono-instrument-controls { display: grid; grid-template-columns: auto minmax(180px, 1fr) minmax(180px, 1fr); gap: 13px 18px; align-items: center; padding: 14px 18px; background: #e8eeea; }
.sono-instrument-tabs { display: flex; flex-wrap: wrap; gap: 5px; }
.sono-instrument-tab { padding: 8px 10px; border: 1px solid var(--line-dark); color: var(--muted); background: transparent; cursor: pointer; font: 700 9px var(--mono); }
.sono-instrument-tab.is-selected { border-color: var(--accent); color: var(--ink); background: var(--accent-soft); }
.sono-range-control { display: grid; grid-template-columns: auto minmax(80px, 1fr) auto; gap: 9px; align-items: center; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.sono-range-control input { width: 100%; accent-color: var(--accent); }
.sono-range-control output { min-width: 43px; color: var(--ink); font-weight: 700; text-align: right; }
.sono-instrument-foot { display: flex; justify-content: space-between; gap: 14px; align-items: center; padding: 12px 18px; color: var(--muted); background: #f7f7f4; font: 10px var(--mono); }
.sono-instrument-foot p { margin: 0; }
.sono-instrument-foot span { color: var(--accent); font-weight: 700; }

@media (max-width: 780px) {
  .story-section .story-copy { margin-bottom: 27px; }
  .story-section .showcase { padding: 12px; }
  .showcase-video .video-frame { min-height: 0; }
  .sono-phase-frame, .sono-phase-frame--fit { grid-template-columns: 1fr; }
  .sono-fit-visual { grid-template-columns: 1fr; }
  .sono-instrument-controls { grid-template-columns: 1fr; }
  .sono-instrument-tabs { width: 100%; }
  .sono-range-control { grid-template-columns: 90px minmax(0, 1fr) auto; }
}

@media (max-width: 560px) {
  .video-end-card { padding: 22px; }
  .video-end-card strong { font-size: 29px; }
  .live-handoff { grid-template-columns: 1fr; padding: 18px; }
  .sono-instrument-head { display: block; }
  .sono-instrument-mode { display: block; margin-top: 11px; text-align: left; }
  .sono-instrument-visual { padding: 9px; }
  .sono-instrument-readout { grid-template-columns: 1fr; }
  .sono-instrument-readout > div { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .sono-instrument-readout > div:last-child { border-bottom: 0; }
  .sono-station-rail { gap: 3px; }
  .sono-station-node { padding: 6px 2px; }
  .sono-station-node small { font-size: 8px; }
  .sono-instrument-foot { display: block; }
  .sono-instrument-foot span { display: block; margin-top: 7px; }
}

/* Theme switch: light is the editorial default; dark is a complete surface treatment. */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  min-height: 31px;
  padding: 6px 9px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font: 9px var(--mono);
  white-space: nowrap;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.theme-toggle-mark { color: var(--accent); font-size: 13px; line-height: 1; }

html[data-theme="light"] { color-scheme: light; }
html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #121715;
  --paper-dark: #1c2520;
  --ink: #e9eee9;
  --muted: #aab7b0;
  --line: #35423b;
  --line-dark: #5a6a60;
  --accent: #e3917d;
  --accent-soft: #3b2927;
  --blue: #8bc1cb;
  --blue-soft: #1e3035;
  --green: #8dbd9d;
  --green-soft: #263a2c;
  --amber: #e9c06c;
  --dark: #0b100e;
  --surface: #1a221e;
  --surface-strong: #222d28;
}
html[data-theme="light"] {
  --surface: #fbfbf8;
  --surface-strong: #fff;
}

html[data-theme="dark"] .showcase,
html[data-theme="dark"] .demo-sandbox,
html[data-theme="dark"] .demo-record,
html[data-theme="dark"] .chart-card,
html[data-theme="dark"] .metric-card,
html[data-theme="dark"] .sono-geometry-card,
html[data-theme="dark"] .sono-survey-artifact,
html[data-theme="dark"] .sono-station-node {
  background: var(--surface);
}
html[data-theme="dark"] .embed-frame,
html[data-theme="dark"] .map-frame,
html[data-theme="dark"] .artifact-preview img,
html[data-theme="dark"] .sono-artifact-image {
  background: var(--surface-strong);
}
html[data-theme="dark"] .demo-tabs,
html[data-theme="dark"] .demo-controls,
html[data-theme="dark"] .sono-instrument-controls {
  background: #26332d;
}
html[data-theme="dark"] .sono-instrument,
html[data-theme="dark"] .sono-instrument-foot {
  background: var(--surface);
}
html[data-theme="dark"] .sono-instrument-visual { background: #1b2922; }
html[data-theme="dark"] .sono-instrument-readout { background: var(--surface-strong); }
html[data-theme="dark"] .showcase-video .video-frame { background: #0b100e; border-color: var(--line); }
html[data-theme="light"] .showcase-map-demo .video-frame { background: #eef2ee; }
html[data-theme="dark"] .story-video,
html[data-theme="dark"] .sono-artifact-image,
html[data-theme="dark"] .artifact-preview img {
  filter: brightness(.76) contrast(1.1) saturate(.88);
  transition: filter .2s ease;
}
html[data-theme="dark"] .showcase-video.is-ending .story-video {
  filter: blur(7px) brightness(.76) contrast(1.1) saturate(.88);
}
html[data-theme="dark"] .showcase { box-shadow: 10px 12px 0 rgba(0,0,0,.28); }
html[data-theme="dark"] .site-header { box-shadow: 0 8px 24px rgba(0,0,0,.12); }

@media (max-width: 960px) {
  .theme-toggle { padding-inline: 8px; }
}
@media (max-width: 560px) {
  .theme-toggle [data-theme-label] { display: none; }
  .theme-toggle { width: 31px; justify-content: center; padding-inline: 0; }
}

/* Block 8 is a committed artifact set: keep the images and encoded colors honest. */
.sono-block8-stage { overflow: hidden; color: var(--ink); border: 1px solid var(--line-dark); background: var(--surface); }
.sono-block8-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding: 21px 23px 17px; border-bottom: 1px solid var(--line); }
.sono-block8-head h3 { margin: 7px 0 0; font: 600 clamp(26px, 3.1vw, 44px)/1 var(--sans); letter-spacing: -.065em; }
.sono-block8-mode { padding-top: 4px; color: var(--accent); font: 700 9px var(--mono); letter-spacing: .08em; text-align: right; }
.sono-block8-viewport { min-height: clamp(370px, 42vw, 560px); padding: 16px; display: grid; place-items: center; background: #edf2ee; }
.sono-block8-view { width: 100%; min-height: 338px; }
.sono-block8-view[hidden] { display: none; }
.sono-block8-view:not([data-block8-view-panel="orbit"]) { display: flex; flex-direction: column; justify-content: center; align-items: center; }
.sono-block8-video { display: block; width: 100%; height: clamp(338px, 39vw, 520px); object-fit: contain; background: #edf2ee; }
.sono-block8-image { display: block; width: 100%; max-height: 520px; object-fit: contain; object-position: center; background: #fff; }
.sono-block8-image--cloud { height: clamp(338px, 39vw, 520px); }
.sono-block8-image--map { height: auto; max-height: 440px; }
.sono-block8-caption { max-width: 790px; margin: 9px auto 0; color: var(--muted); font: 10px/1.5 var(--mono); }
.sono-block8-tabs { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px 17px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface-strong); }
.sono-block8-tab { padding: 8px 10px; border: 1px solid var(--line-dark); color: var(--muted); background: transparent; cursor: pointer; font: 700 9px var(--mono); }
.sono-block8-tab:hover, .sono-block8-tab.is-active { border-color: var(--accent); color: var(--ink); background: var(--accent-soft); }
.sono-block8-scorecard { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-bottom: 1px solid var(--line); background: var(--surface); }
.sono-block8-scorecard > div { min-width: 0; min-height: 78px; padding: 13px 15px; border-right: 1px solid var(--line); }
.sono-block8-scorecard > div:last-child { border-right: 0; }
.sono-block8-scorecard span { display: block; color: var(--muted); font: 9px var(--mono); text-transform: uppercase; }
.sono-block8-scorecard strong { display: block; margin-top: 7px; color: var(--ink); font: 600 15px/1.15 var(--sans); letter-spacing: -.03em; overflow-wrap: anywhere; }
.sono-block8-boundary { padding: 13px 17px 16px; color: var(--muted); font: 10px/1.55 var(--mono); }
.sono-block8-boundary strong { color: var(--ink); }
.sono-block8-boundary a, .demo-source-note a { color: var(--accent); }
.sono-block8-explorer-body { padding: 24px; }
.sono-block8-explorer-heading { margin-bottom: 18px; }
.sono-block8-explorer-heading h4 { margin: 0 0 7px; font: 600 clamp(24px, 3vw, 36px)/1.06 var(--sans); letter-spacing: -.055em; }
.sono-block8-explorer-heading p { max-width: 720px; margin: 0; color: var(--muted); font-size: 13px; }
.sono-block8-explorer-artifact { display: block; width: 100%; max-height: 620px; object-fit: contain; object-position: center; border: 1px solid var(--line); background: #fff; }
.sono-block8-explorer-artifact--orbit { height: min(620px, 64vw); min-height: 380px; }
.sono-block8-viewer { overflow: hidden; min-height: 620px; border: 1px solid var(--line); background: #fff; }
.sono-block8-viewer iframe { display: block; width: 100%; height: 620px; border: 0; background: #fff; }
.sono-block8-explorer-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 15px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 25px; }
.contact-note a { color: var(--accent); }
.inline-action { padding: 0; border: 0; color: var(--accent); background: transparent; cursor: pointer; font: inherit; text-decoration: underline; text-underline-offset: 3px; }
.inline-action:hover { color: var(--ink); }

html[data-theme="dark"] .sono-block8-viewport { background: #18231d; }
html[data-theme="dark"] .sono-block8-video,
html[data-theme="dark"] .sono-block8-image,
html[data-theme="dark"] .sono-block8-explorer-artifact,
html[data-theme="dark"] .sono-block8-viewer iframe { filter: none !important; }
html[data-theme="dark"] .showcase-video[data-video-showcase="labfisika"] .story-video { filter: none; transition: none; }
html[data-theme="dark"] .showcase-video[data-video-showcase="labfisika"].is-ending .story-video { filter: none; opacity: 1; transform: none; }

@media (max-width: 780px) {
  .sono-block8-head { display: block; }
  .sono-block8-mode { display: block; margin-top: 11px; text-align: left; }
  .sono-block8-scorecard { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sono-block8-scorecard > div:nth-child(2n) { border-right: 0; }
  .sono-block8-scorecard > div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .sono-block8-explorer-body { padding: 16px; }
  .sono-block8-viewer, .sono-block8-viewer iframe { min-height: 520px; height: 520px; }
}

@media (max-width: 560px) {
  .sono-block8-viewport { min-height: 330px; padding: 9px; }
  .sono-block8-view { min-height: 300px; }
  .sono-block8-video, .sono-block8-image--cloud { height: 300px; }
  .sono-block8-image--map { min-height: 190px; }
  .sono-block8-caption { font-size: 9px; }
  .sono-block8-scorecard { grid-template-columns: 1fr; }
  .sono-block8-scorecard > div, .sono-block8-scorecard > div:nth-child(2n) { border-right: 0; border-top: 1px solid var(--line); }
  .sono-block8-scorecard > div:first-child { border-top: 0; }
  .sono-block8-explorer-artifact--orbit { height: 360px; min-height: 0; }
  .sono-block8-viewer, .sono-block8-viewer iframe { min-height: 420px; height: 420px; }
  .contact-actions .button { width: 100%; }
}