/* Neutral dark surfaces sampled from Gyro; cobalt remains the action accent. */
:root {
  --blue: #2056ee;
  --bg: #111110;
  --surface: #1c1c1a;
  --surface-raised: #222220;
  --surface-soft: #1c1c1a;
  --text: #f4f4f2;
  --muted: #a3a39e;
  --quiet: #8a8a85;
  --line: rgba(244, 244, 242, .12);
  --line-strong: rgba(244, 244, 242, .2);
  --header-bg: rgba(17, 17, 16, .96);
  --link: #c5d4ff;
  --focus: #c5d4ff;
  --cobalt-shadow: transparent;
  --panel-shadow: 0 16px 40px -24px rgba(0, 0, 0, .55);
  --frame-shadow: none;
  --lift-shadow: none;
  --gyro-ease: cubic-bezier(.2, .7, .2, 1);
}
:root[data-theme="light"] {
  --bg: #ffffff;
  --surface: #f7f7f5;
  --surface-raised: #ffffff;
  --surface-soft: #f1f1ee;
  --text: #171714;
  --muted: #626560;
  --quiet: #858883;
  --line: rgba(23, 23, 20, .1);
  --line-strong: rgba(23, 23, 20, .16);
  --header-bg: rgba(255, 255, 255, .96);
  --link: #2056ee;
  --focus: #2056ee;
  --cobalt-shadow: transparent;
  --panel-shadow: 0 16px 40px -28px rgba(23, 23, 20, .18);
  --frame-shadow: none;
  --lift-shadow: none;
  --gyro-ease: cubic-bezier(.2, .7, .2, 1);
}
::selection { background: color-mix(in srgb, var(--blue) 22%, transparent); }
.site-header { border-bottom-color: var(--line); }
.site-header .brand { gap: 8px; font-size: 18px; font-weight: 500; }
.site-header .brand img { width: 26px; height: 26px; }
.site-header .nav-download { min-height: 40px; padding-inline: 16px; color: var(--bg); background: var(--text); border-color: var(--text); border-radius: 999px; font-weight: 500; }
.site-header .nav-download:hover, .home-page .editorial-primary:hover { background: var(--text); border-color: var(--text); color: var(--bg); opacity: .88; }
.site-header .theme-toggle:hover { background: var(--surface-soft); }
.site-footer { background: transparent; padding-block: 48px 36px; }
.footer-resources { grid-template-columns: minmax(0, 1fr) 160px 180px; gap: 56px; border-bottom: 0; padding-bottom: 0; }
.footer-identity { min-width: 0; }
.footer-identity .brand { display: inline-flex; gap: 10px; padding: 0; font-size: 24px; }
.footer-identity .brand img { filter: var(--mark-filter); width: 30px; height: 30px; }
.footer-identity .footer-colophon { display: block; margin-top: 18px; }
.footer-identity .footer-colophon p:first-child { font-family: var(--sans); font-size: 16px; letter-spacing: -.02em; }
.footer-identity .footer-colophon p:last-child { margin-top: 8px; font-size: 13px; }
.footer-resources nav a { color: var(--text); min-height: 36px; }
.footer-resources nav a:hover { color: var(--text); }
.home-page main > .editorial-hero { padding-block: 64px 44px; gap: 34px; }
.home-page .editorial-hero-copy { gap: 14px; }
.home-page .editorial-hero h1 { font-size: clamp(40px, 5.2vw, 64px); max-width: none; line-height: 1.04; letter-spacing: -.05em; }
.home-page .hero-break { display: none; }
.home-page .hero-summary > p { max-width: 70ch; font-size: 20px; line-height: 1.5; }
.home-page .hero-summary > p br { display: none; }
.home-page .alpha-badge { min-height: 28px; margin-bottom: 14px; }
.home-page .hero-summary .editorial-actions { margin-top: 22px; gap: 16px; }
.home-page .editorial-primary { min-height: 48px; padding-inline: 18px; border: 1px solid var(--text); border-radius: 999px; background: var(--text); color: var(--bg); box-shadow: none; font-weight: 500; }
.home-page .editorial-tour { padding: 10px 18px; min-height: 48px; border: 0; border-radius: 999px; background: var(--surface-soft); color: var(--text); font-weight: 500; }
.home-page .editorial-tour:hover { background: var(--surface); border-color: transparent; color: var(--text); }
.home-page .hero-viewport { border-color: color-mix(in srgb, var(--blue) 20%, var(--line)); border-radius: 16px; box-shadow: 0 18px 46px -22px var(--cobalt-shadow), var(--panel-shadow); }
:root:not([data-theme="light"]) .home-page .hero-viewport { border-color: var(--line-strong); box-shadow: var(--panel-shadow); }
.home-page main > .proof-strip { padding-block: 26px; border-color: var(--line); }
.home-page .proof-strip > div { grid-template-columns: 32px auto; gap: 2px 16px; padding-left: 24px; }
.home-page .proof-strip svg { width: 28px; height: 28px; }
.home-page .proof-strip strong { font-size: 15px; }
.home-page .proof-strip span { font-size: 13px; }
.home-page main > .agents-section { padding-block: 72px; }
.home-page .agents-title { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.3; letter-spacing: -.035em; }
.home-page .agents-provider-line { display: flex; align-items: center; justify-content: center; gap: .2em; white-space: nowrap; }
.home-page .agent-footprint { flex: none; min-width: 0; margin-left: 0; }
.home-page .agent-slot { position: relative; }
.home-page .agent-word { width: max-content; }
.home-page .agent-word:not(.is-on) { position: absolute; visibility: hidden; }
.home-page .agent-slot { height: 1.35em; padding: .04em .24em; background: var(--surface-raised); border-color: var(--line-strong); border-radius: 12px; box-shadow: 0 2px 4px var(--shadow-soft); }
.home-page .agent-roster { gap: 16px; margin-top: 36px; }
.home-page .agent-pick { width: 52px; height: 52px; border-radius: 14px; }
.home-page .agent-pick .agent-mark { width: 29px; height: 29px; filter: none; opacity: .65; }
.home-page .agent-pick.is-on { border-color: color-mix(in srgb, var(--blue) 50%, var(--line)); background: var(--surface-raised); box-shadow: 0 8px 18px -12px var(--cobalt-shadow); }
.home-page .agent-progress { bottom: 0; left: 14px; right: 14px; height: 3px; }
.home-page main > .launch-preview { padding-block: 8px 64px; }
.home-page .launch-film-poster { max-width: 900px; border-radius: 16px; box-shadow: var(--panel-shadow); }
.home-page .launch-film-poster::after { display: none; }
.home-page .launch-film-copy { left: 36px; bottom: 30px; right: auto; max-width: 58%; text-shadow: 0 2px 12px rgba(5, 16, 40, .6); }
.home-page .launch-film-copy h2 { font-size: clamp(30px, 3.4vw, 46px); font-weight: 600; letter-spacing: -.04em; }
.home-page .launch-film-copy p { margin-top: 8px; color: #e2e9f9; font-size: 15px; }
.home-page main > .editorial-review { padding-block: 64px; }
.home-page .project-introduction { width: 100%; max-width: 900px; margin-inline: auto; margin-bottom: 30px; }
.home-page .project-introduction h2 { font-size: clamp(30px, 3.6vw, 46px); }
.home-page .project-capture { mask-image: none; border: 1px solid color-mix(in srgb, var(--blue) 20%, var(--line)); border-radius: 14px; overflow: hidden; box-shadow: 0 12px 34px -24px var(--cobalt-shadow), var(--panel-shadow); }
.home-page .project-capture::after { display: none; }
.home-page .project-workspace figcaption { padding-left: 2px; }
.home-page main > .editorial-start { padding-block: 56px; }
.home-page .start-sequence { gap: 28px; }
.home-page .start-sequence li { grid-template-columns: minmax(0, 1fr); align-content: start; gap: 12px; min-height: 250px; padding-block: 24px 30px; }
.home-page .start-sequence .step-number { font-size: 13px; color: var(--muted); }
.home-page .start-step-copy { gap: 8px; }
.home-page .start-step-copy h3 { font-size: 22px; }
.home-page .start-step-copy p { font-size: 14px; }
.home-page .start-sequence :is(.step-visual, .first-task-link) { grid-column: 1; margin-top: 14px; }
.home-page .project-token { min-height: 70px; gap: 10px; padding: 10px 18px 10px 10px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--surface-raised); box-shadow: var(--panel-shadow); }
.home-page .start-sequence .project-token img { width: 46px; height: 46px; filter: none; object-fit: contain; }
.home-page .start-sequence .start-agent-logos { gap: 0; min-height: 70px; padding-block: 6px; isolation: isolate; }
.home-page .start-provider-tile { position: relative; flex: none; display: grid; place-items: center; width: 64px; height: 64px; background: var(--surface-raised); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--panel-shadow); }
.home-page .start-sequence .start-agent-logos svg { width: 34px; height: 34px; }
.home-page .start-agent-logos [data-start-provider="claude"] { color: #d97757; }
.home-page .start-provider-openai { margin-left: -8px; z-index: 2; transform: rotate(-7deg); }
.home-page .start-provider-grok { margin-left: -10px; z-index: 3; transform: rotate(8deg); }
.home-page .start-provider-deepseek { margin-left: -8px; z-index: 4; }
.home-page .start-agent-logos [data-start-provider="deepseek"] { color: #4d6bfe; }
.home-page .start-sequence .first-task-link { min-height: 70px; padding: 14px 22px; border-radius: 14px; box-shadow: var(--panel-shadow); }
.home-page .privacy-note { margin-top: 52px; border-left: 2px solid var(--blue); padding-left: 24px; }
.home-page .privacy-note h3 { font-size: 16px; font-weight: 600; }
.home-page .privacy-note p { font-size: 14px; max-width: 72ch; }
.home-page main > .editorial-faq { padding-block: 44px 64px; gap: 28px; }
.home-page .editorial-faq .section-heading { text-align: center; }
.home-page .editorial-faq .section-heading h2 { font-size: clamp(30px, 3.2vw, 40px); }
.home-page .editorial-faq .detail-list details { border-color: var(--line); }
.home-page .editorial-faq .detail-list summary { padding-inline: 20px; min-height: 68px; font-size: 17px; }
.home-page .editorial-faq .detail-list details[open] { border-left: 3px solid var(--blue); border-radius: 8px; background: var(--surface-soft); }
.home-page .editorial-faq .detail-list details[open] summary { padding-left: 17px; }
.home-page .editorial-faq .detail-content { padding-inline: 20px; }
.home-page main > .editorial-download { padding-block: 24px 64px; }
.home-page .editorial-download-shell { display: block; padding: 0; border: 0; background: transparent; }
.home-page .download-panel { position: relative; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; overflow: hidden; min-height: 570px; padding: 40px 48px 28px; border-radius: 20px; background: #165cf7; color: #fff; box-shadow: 0 12px 32px -24px rgba(32, 86, 238, .35); }
.home-page .download-panel-art { position: absolute; z-index: -1; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.home-page .editorial-download .download-heading { position: static; width: 56%; min-height: 0; padding: 0; border: 0; border-radius: 0; overflow: visible; background: transparent; text-align: left; color: #fff; }
:root[data-theme="light"] .home-page .editorial-download .download-heading { background: transparent; }
.home-page .download-brand { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 24px; font-size: 23px; font-weight: 600; text-decoration: none; }
.home-page .download-brand img { filter: none; }
.home-page .download-alpha { display: flex; width: fit-content; margin-bottom: 10px; color: #eff3ff; }
.home-page .download-alpha::before { background: #eff3ff; }
.home-page .editorial-download .download-heading h2 { color: #fff; font-size: clamp(38px, 4.3vw, 54px); line-height: 1.06; letter-spacing: -.045em; }
.home-page .download-heading > p:last-child { margin-top: 12px; font-size: 17px; line-height: 1.5; color: #eff3ff; }
.home-page .editorial-download .download-controls { position: static; width: min(100%, 390px); margin: 0; padding: 0; background: transparent; border: 0; border-radius: 0; box-shadow: none; }
.home-page .editorial-download .architecture-selector { margin-bottom: 14px; }
.home-page .editorial-download .architecture-selector legend { margin-bottom: 8px; color: #fff; font-size: 14px; text-align: left; }
.home-page .editorial-download .segmented-control { padding: 4px; border: 1px solid rgba(255, 255, 255, .4); border-radius: 10px; background: rgba(255, 255, 255, .10); }
.home-page .editorial-download .segmented-control span { min-height: 42px; border-radius: 7px; color: #fff; font-size: 14px; }
.home-page .editorial-download .segmented-control input:checked + span { background: #fff; color: #15213c; box-shadow: 0 1px 4px rgba(7, 29, 75, .12); }
.home-page .editorial-download .segmented-control input:focus-visible + span { outline: 2px solid #fff; outline-offset: 3px; }
.home-page .editorial-download .button-download { width: 100%; min-height: 52px; border: 1px solid #fff; border-radius: 10px; background: #fff; color: #15213c; font-size: 15px; font-weight: 600; }
.home-page .editorial-download .button-download:hover { background: #eaf0ff; border-color: #eaf0ff; }
.home-page .download-panel a:focus-visible { outline-color: #fff; }
.home-page .download-compatibility { margin: 12px 0 0; font-size: 13px; color: #fff; }
.home-page .editorial-download .asset-meta { margin: 6px 0 0; font-size: 13px; text-align: left; color: #eff3ff; }
.home-page .download-panel .release-fallback { color: #fff; font-size: 13px; }
.home-page .download-panel .release-fallback a { color: #fff; }
.home-page .editorial-download .download-costs { max-width: none; margin: 0; padding: 18px 0 0; border-top: 1px solid rgba(255, 255, 255, .35); color: #eff3ff; font-size: 13px; line-height: 1.5; text-align: left; }
.home-page .download-release-row { flex-direction: row; align-items: center; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; margin-top: 0; padding-top: 20px; }
.home-page .editorial-download .release-meta { justify-content: start; gap: 6px; font-size: 13px; text-align: left; }
.home-page .download-resources { justify-content: end; gap: 4px 22px; }
.home-page .download-resources a { font-size: 13px; }
@media (max-width: 1000px) {
  .footer-resources { gap: 32px; }
  .home-page .agent-roster { gap: 10px; }
  .home-page .download-panel { padding: 32px; }
  .home-page .download-panel-art { object-fit: contain; }
  .home-page .editorial-download .download-heading { width: 57%; }
  .home-page .editorial-download .download-controls { width: 48%; }
}
@media (max-width: 760px) {
  .site-header .brand { gap: 8px; font-size: 19px; }
  .site-header .brand img { width: 26px; height: 26px; }
  .site-header .nav-download { padding-inline: 14px; }
  .site-footer { padding-block: 36px; }
  .footer-resources { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 20px; }
  .footer-identity { grid-column: 1 / -1; }
  .home-page main > .editorial-hero { padding-block: 32px 28px; gap: 30px; }
  .home-page .editorial-hero h1 { font-size: clamp(34px, 8.8vw, 44px); }
  .home-page .hero-summary > p { font-size: 16px; }
  .home-page .hero-summary .editorial-actions { gap: 10px; margin-top: 18px; }
  .home-page .editorial-primary, .home-page .editorial-tour { min-height: 46px; padding-inline: 14px; font-size: 14px; }
  .home-page .hero-viewport { border-radius: 12px; box-shadow: var(--panel-shadow); }
  .home-page .proof-strip > div { display: flex; gap: 4px; padding-left: 10px; }
  .home-page .proof-strip svg { width: 22px; height: 22px; }
  .home-page .proof-strip strong { font-size: 13px; }
  .home-page .proof-strip span { font-size: 13px; }
  .home-page main > .agents-section { padding-block: 42px; }
  .home-page .agents-title { font-size: clamp(23px, 6.4vw, 31px); }
  .home-page .agent-roster { gap: 8px; margin-top: 26px; }
  .home-page .agent-pick { width: 46px; height: 46px; }
  .home-page .agent-pick .agent-mark { width: 26px; height: 26px; }
  .home-page main > .launch-preview { padding-block: 0 32px; }
  .home-page .launch-film-poster { border-radius: 12px; }
  .home-page .launch-film-copy { left: 18px; bottom: 16px; max-width: 64%; }
  .home-page .launch-film-copy h2 { font-size: clamp(20px, 4.5vw, 30px); }
  .home-page .launch-film-copy p { margin-top: 5px; font-size: 13px; }
  .home-page main > .editorial-review { padding-block: 36px; }
  .home-page .project-introduction { margin-bottom: 24px; }
  .home-page .project-capture { border-radius: 10px; }
  .home-page main > .editorial-start { padding-block: 36px; }
  .home-page .start-sequence { grid-template-columns: minmax(0, 1fr); margin-top: 24px; gap: 0; }
  .home-page .start-sequence li { grid-template-columns: 24px minmax(0, 1fr); min-height: 0; gap: 18px 10px; padding-block: 24px; }
  .home-page .start-sequence :is(.step-visual, .first-task-link) { grid-column: 2; margin-top: 0; }
  .home-page .start-step-copy h3 { font-size: 20px; }
  .home-page .start-step-copy p { font-size: 14px; }
  .home-page .project-token, .home-page .start-sequence .first-task-link { min-height: 60px; }
  .home-page .start-provider-tile { width: 56px; height: 56px; border-radius: 12px; }
  .home-page .start-sequence .start-agent-logos svg { width: 30px; height: 30px; }
  .home-page .privacy-note { margin-top: 36px; padding-left: 18px; }
  .home-page main > .editorial-faq { padding-block: 32px 40px; }
  .home-page .editorial-faq .detail-list summary { padding-inline: 14px; font-size: 15px; min-height: 60px; }
  .home-page .editorial-faq .detail-list details[open] summary { padding-left: 11px; }
  .home-page .editorial-faq .detail-content { padding-inline: 14px; }
  .home-page main > .editorial-download { padding-block: 16px 40px; }
  .home-page .download-panel { gap: 20px; min-height: 0; padding: 28px 24px 24px; border-radius: 16px; }
  .home-page .download-panel-art { position: static; width: calc(100% + 48px); max-width: none; height: auto; margin: -28px -24px -20px; aspect-ratio: 16 / 9; object-fit: contain; }
  .home-page .editorial-download .download-heading { width: 100%; display: block; text-align: left; }
  .home-page .download-brand { display: none; }
  .home-page .download-alpha { margin-bottom: 10px; }
  .home-page .editorial-download .download-heading h2 { font-size: 36px; }
  .home-page .download-heading > p:last-child { font-size: 15px; }
  .home-page .editorial-download .download-controls { width: 100%; }
  .home-page .editorial-download .download-costs { padding-top: 18px; font-size: 13px; }
  .home-page .download-release-row { flex-direction: column; align-items: start; gap: 8px; padding-top: 16px; }
  .home-page .download-resources { justify-content: start; gap: 4px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .home-page .agent-word { transition: none; }
}

@media (min-width: 761px) and (max-width: 900px) {
  .home-page .start-provider-tile { width: 56px; height: 56px; border-radius: 12px; }
  .home-page .start-sequence .start-agent-logos svg { width: 30px; height: 30px; }
}

/* The hero scene loops automatically; its native UI is a visual example. */
.home-page .hero-viewport { position: relative; aspect-ratio: 16 / 9; height: auto; }
.home-page .hero-workspace { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.home-page [data-scene-scaled] .hero-workspace {
  width: 1280px; height: 720px;
  left: 0; top: 0; right: auto; bottom: auto;
  margin-left: 0;
  transform: scale(var(--hero-scene-scale)); transform-origin: top left;
}