:root {
  color-scheme: dark;
  --bg: #070c17;
  --surface: #0d1626;
  --text: #edf3fb;
  --muted: #a5b4c9;
  --cyan: #70dded;
  --violet: #b9a5fa;
  --line: #253449;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 100px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
h1, h2, h3, p, a, li { overflow-wrap: anywhere; }
h1, h2, h3, p { margin-top: 0; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 5px; }
img { max-width: 100%; }
.wrap { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; top: -100px; left: 20px; z-index: 100; padding: 12px 20px; background: var(--surface); border: 2px solid var(--cyan); }
.skip-link:focus { top: 10px; }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(7,12,23,.96); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; min-height: 80px; }
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; font-size: 1.15rem; font-weight: 750; letter-spacing: -.02em; }
.brand img { flex: 0 0 36px; }
.brand-divider { color: #65748b; margin-inline: 12px; font-weight: 400; }
.brand-product { color: var(--muted); font-size: .87rem; font-weight: 500; letter-spacing: 0; }
nav { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 24px; font-size: .85rem; color: var(--muted); }
nav a { display: inline-flex; align-items: center; min-height: 44px; }
nav a:hover, .footer-links a:hover { color: var(--cyan); }
nav .nav-cta { color: var(--text); gap: 10px; }
.hero { padding: 92px 0 0; background: radial-gradient(ellipse at 88% 20%, rgba(73,119,180,.12), transparent 55%); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.12fr) minmax(0,.88fr); gap: 72px; align-items: center; }
.hero-grid > *, .split > *, .two-column > *, .three-column > * { min-width: 0; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--cyan); font-size: .73rem; text-transform: uppercase; letter-spacing: .15em; font-weight: 650; margin-bottom: 22px; }
.status-dot { flex: 0 0 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 16px rgba(112,221,237,.45); }
h1 { font-size: clamp(2.9rem, 5.3vw, 4.65rem); line-height: 1.04; letter-spacing: -.055em; font-weight: 650; margin-bottom: 28px; }
h1 span { color: var(--cyan); }
.hero-subtitle { color: var(--text); font-size: 1.18rem; line-height: 1.5; max-width: 440px; }
.lead { color: #c6d2e3; font-size: 1.07rem; }
.hero-detail { color: var(--muted); font-size: .94rem; max-width: 540px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; padding: 12px 18px; border: 1px solid var(--line); border-radius: 7px; font-size: .85rem; font-weight: 650; text-align: center; transition: background-color .15s ease, border-color .15s ease; }
.button.primary { background: var(--cyan); border-color: var(--cyan); color: #061219; }
.button.primary:hover { background: #a3edf6; border-color: #a3edf6; }
.button.secondary:hover { background: var(--surface); border-color: var(--muted); }
.hero-note { margin: 18px 0 0; font-size: .76rem; color: var(--muted); }
.trajectory { margin: 0; border: 1px solid #34455e; border-radius: 16px; background: linear-gradient(150deg, #142339, #0b1423 65%); padding: 24px; box-shadow: 0 25px 90px rgba(0,0,0,.18); }
.figure-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: .78rem; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.outline-label { color: var(--cyan); border: 1px solid #325665; border-radius: 4px; padding: 2px 7px; font-size: .67rem; }
.small-label { color: var(--muted); font-size: .72rem; }
.trajectory-source { padding-top: 20px; }
.signal-bars { height: 50px; display: flex; align-items: center; gap: 6px; margin: 14px 0 22px; }
.signal-bars i { flex: 1 1 0; min-width: 0; height: 24%; background: #387b91; border-radius: 2px; }
.signal-bars i:nth-child(3n) { height: 64%; background: var(--cyan); }
.signal-bars i:nth-child(4n) { height: 100%; background: var(--violet); }
.signal-bars i:nth-child(5n) { height: 42%; }
.state-chain { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.state-chain li { display: grid; grid-template-columns: 22px minmax(0,1fr) 34px; gap: 12px; align-items: center; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; background: rgba(9,18,31,.7); }
.step-number { color: var(--muted); font: .65rem ui-monospace, monospace; }
.state-chain h2 { font-size: .9rem; margin: 0; letter-spacing: 0; line-height: 1.5; }
.state-chain p { font-size: .71rem; margin: 2px 0 0; color: var(--muted); }
.code-mark { display: grid; place-items: center; width: 34px; height: 34px; color: var(--cyan); border: 1px solid #345465; border-radius: 7px; font: .8rem ui-monospace, monospace; }
.validation-gate { display: flex; align-items: center; gap: 14px; padding: 18px 12px; margin-top: 12px; border-block: 1px dashed #4f486f; color: var(--violet); }
.validation-gate > span { font-size: 1.7rem; }
.validation-gate strong { font-size: .82rem; }
.validation-gate p { color: var(--muted); margin: 2px 0 0; font-size: .74rem; }
.policy-output { padding-top: 16px; }
.policy-output > div { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 10px; }
.policy-output > div span { padding: 4px 9px; border: 1px solid #34455e; border-radius: 4px; font-size: .67rem; }
figcaption { font-size: .67rem; color: var(--muted); margin-top: 20px; }
.principle { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding-block: 34px; border-block: 1px solid var(--line); margin-top: 76px; font-size: clamp(.92rem,1.7vw,1.15rem); color: #c9d7e9; }
.principle span::before { content: "+"; margin-right: 12px; color: var(--cyan); }
.section { padding-block: 104px; }
.section-heading { max-width: 740px; margin-bottom: 40px; }
h2 { font-size: clamp(2rem,3.4vw,3rem); letter-spacing: -.04em; line-height: 1.16; font-weight: 600; margin-bottom: 22px; }
.section-heading > p:not(.eyebrow), .prose, .muted { color: var(--muted); }
.section-heading > p:last-child { margin-bottom: 0; }
.split { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 88px; }
.prose p { margin-bottom: 22px; }
.prose .statement { color: var(--text); font-size: 1.24rem; border-left: 2px solid var(--cyan); padding-left: 22px; margin-top: 32px; }
.tinted { background: #0b1220; border-block: 1px solid var(--line); }
.capabilities { list-style: none; padding: 0; margin: 48px 0 0; }
.capabilities li { display: grid; grid-template-columns: minmax(0,.55fr) minmax(0,1.45fr); gap: 40px; border-top: 1px solid var(--line); padding: 32px 0; }
.capabilities li:last-child { padding-bottom: 0; }
.capability-number { font: .76rem/1.8 ui-monospace, monospace; color: var(--cyan); }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.4; margin-bottom: 12px; letter-spacing: -.015em; }
.capabilities p { color: var(--muted); max-width: 720px; margin-bottom: 0; }
.two-column, .three-column { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; }
.three-column { grid-template-columns: repeat(3,minmax(0,1fr)); }
.card { padding: 32px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
.card p { color: var(--muted); font-size: .94rem; margin-bottom: 0; }
.card-kicker { display: block; font-size: .73rem; color: var(--violet); margin-bottom: 24px; }
.accent-card { border-color: #2c5360; background: linear-gradient(135deg, #102731, #0d1626); }
.accent-card .card-kicker { color: var(--cyan); }
.snapshot-section { background: radial-gradient(ellipse at 0% 50%, rgba(105,77,151,.13), transparent 65%); border-block: 1px solid var(--line); }
.snapshot-section .split { align-items: center; }
.snapshot-card { border: 1px solid #46415e; background: #111725; border-radius: 12px; padding: 32px; }
.snapshot-card > .small-label { margin-bottom: 24px; }
.snapshot-fields { list-style: none; padding: 0; margin: 0; counter-reset: fields; }
.snapshot-fields li { counter-increment: fields; padding: 12px 0; border-top: 1px solid var(--line); font-size: .88rem; }
.snapshot-fields li::before { content: "0" counter(fields); color: var(--violet); font: .72rem ui-monospace, monospace; margin-right: 22px; }
.snapshot-footer { border-top: 1px solid #46415e; margin-top: 20px; padding-top: 22px; }
.snapshot-footer strong { color: var(--violet); font-size: .94rem; }
.snapshot-footer p { color: var(--muted); font-size: .8rem; margin: 10px 0 0; }
.research-mark { display: inline-flex; align-items: center; min-height: 46px; color: var(--cyan); font: 1.15rem ui-monospace, monospace; margin-bottom: 24px; }
.research-link { color: var(--muted); max-width: 750px; margin: 32px 0 0; font-size: .92rem; }
.research-link a { display: inline-block; color: var(--cyan); text-decoration: underline; text-underline-offset: 4px; }
.use-cases { margin: 0; padding: 0; list-style: none; }
.use-cases li { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: .95rem; }
.use-cases li::before { content: "↗"; color: var(--cyan); margin-right: 18px; }
.preview-panel { max-width: 960px; padding: clamp(24px,5vw,64px); border: 1px solid #345465; border-radius: 14px; background: linear-gradient(135deg,#10232e,#101728 70%); margin-inline: auto; }
.preview-panel > p:not(.eyebrow):not(.closing-line) { color: var(--muted); }
.preview-panel .lead { margin-top: 28px; }
.closing-line { color: var(--text); font-size: 1.25rem; font-weight: 600; margin-top: 32px; }
.contact-note { font-size: .8rem; margin: 20px 0 0; }
.contact-note a { text-decoration: underline; text-underline-offset: 4px; }
.site-footer { border-top: 1px solid var(--line); padding-block: 40px; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; }
.footer-brand { font-size: 1.45rem; font-weight: 750; }
.footer-inner p { margin: 10px 0 0; font-size: .8rem; color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 12px 24px; font-size: .8rem; color: var(--muted); max-width: 390px; }
.footer-links span { flex-basis: 100%; }
@media (max-width: 1080px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 8px; padding-block: 16px; }
  .site-header { position: static; }
  html { scroll-padding-top: 24px; }
  .hero-grid { gap: 36px; }
  .split { gap: 40px; }
  .hero { padding-top: 60px; }
}
@media (max-width: 800px) {
  .hero-grid, .split, .two-column, .three-column { grid-template-columns: minmax(0,1fr); }
  .hero-copy { max-width: 620px; }
  h1 { max-width: 580px; font-size: clamp(2.6rem,8.2vw,4.2rem); }
  .trajectory { max-width: 560px; width: 100%; }
  .principle { margin-top: 48px; }
  .section { padding-block: 68px; }
  .split { gap: 20px; }
  .split .section-heading { margin-bottom: 16px; }
  .capabilities li { grid-template-columns: minmax(0,1fr); gap: 12px; }
  .footer-inner { flex-direction: column; }
}
@media (max-width: 480px) {
  .wrap { width: calc(100% - 36px); }
  .brand-product { font-size: .78rem; }
  .brand-divider { margin-inline: 6px; }
  nav { gap: 4px 18px; font-size: .8rem; }
  .hero { padding-top: 42px; }
  h1 { font-size: clamp(2.5rem,11vw,3.2rem); }
  .actions { flex-direction: column; }
  .button { width: 100%; }
  .trajectory, .snapshot-card, .card { padding: 20px; }
  .state-chain li { grid-template-columns: 18px minmax(0,1fr) 28px; gap: 8px; padding: 12px 10px; }
  .code-mark { width: 28px; height: 28px; }
  .principle { flex-direction: column; gap: 12px; padding-block: 24px; }
  .section-heading { margin-bottom: 28px; }
  .section { padding-block: 54px; }
}
@media (prefers-reduced-motion: reduce) { .button { transition: none; } }