@font-face {
  font-family: "Inter";
  src: url("fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --navy: #0A1222;
  --navy-2: #121C31;
  --navy-3: #1B2740;
  --paper: #F2EFE8;
  --paper-2: #E8E4DA;
  --white: #FFFFFF;
  --ink: #0A1222;
  --muted: #5B6476;
  --muted-dark: #9AA4B8;
  --line: #D9D4C8;
  --line-dark: #26324D;
  --blue: #2F6BFF;
  --blue-soft: #E3EBFF;
  --radius: 14px;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.025em; margin: 0; font-weight: 700; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4.1rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.dot { color: var(--blue); }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 18px;
}
.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; }
.dark .lead { color: var(--muted-dark); }

/* Skip link */
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--white); padding: 8px 12px; z-index: 100; border-radius: 8px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 18, 34, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line-dark);
  color: var(--white);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.logo { font-weight: 800; font-size: 1.6rem; letter-spacing: -0.05em; text-decoration: none; color: var(--white); }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { text-decoration: none; font-size: 0.95rem; color: #C9D1E0; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--white); }
.nav .btn { color: var(--white); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px;
  font-weight: 600; font-size: 0.98rem; text-decoration: none;
  border: 1px solid transparent; transition: transform .15s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: var(--white); }
.btn-primary:hover { background: #2259E6; }
.btn-ghost { border-color: rgba(255,255,255,0.28); color: var(--white); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.6); }
.light .btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-sm { padding: 9px 16px; font-size: 0.9rem; }
.btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }

/* Sections */
section { padding: 104px 0; }
.dark { background: var(--navy); color: var(--white); }
.paper-2 { background: var(--paper-2); }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head h2 + p { margin-top: 18px; }

/* Hero */
.hero { padding: 96px 0 0; overflow: hidden; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(600px 300px at 80% 10%, rgba(47,107,255,0.22), transparent 70%),
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 44px 44px,
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px) 0 0 / 44px 44px;
  mask-image: linear-gradient(#000 40%, transparent 95%);
  -webkit-mask-image: linear-gradient(#000 40%, transparent 95%);
  pointer-events: none;
}
.hero .wrap { position: relative; }
.hero h1 { max-width: 900px; }
.hero .lead { margin-top: 26px; font-size: 1.25rem; max-width: 680px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-note { margin-top: 18px; font-size: 0.9rem; color: var(--muted-dark); }
.shot {
  margin-top: 72px;
  border-radius: 16px 16px 0 0;
  border: 1px solid var(--line-dark); border-bottom: 0;
  background: var(--navy-2);
  padding: 10px 10px 0;
  box-shadow: 0 -20px 80px rgba(47,107,255,0.12);
}
.shot img { border-radius: 9px 9px 0 0; width: 100%; height: auto; }
.shot-bar { display: flex; gap: 6px; padding: 2px 4px 10px; }
.shot-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--line-dark); }
.shot-caption { text-align: center; font-size: 0.85rem; color: var(--muted); margin-top: 14px; }

/* Problem */
.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.problem-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.problem-list li { padding: 20px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 34px 1fr; gap: 12px; }
.problem-list li:last-child { border-bottom: 1px solid var(--line); }
.problem-list .n { font-size: 0.85rem; font-weight: 600; color: var(--blue); padding-top: 3px; }
.problem-list strong { display: block; font-weight: 600; margin-bottom: 2px; }
.problem-list span.t { color: var(--muted); font-size: 0.97rem; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: step; position: relative; }
.step {
  background: var(--navy-2); border: 1px solid var(--line-dark); border-radius: var(--radius);
  padding: 28px 24px; position: relative;
}
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font-size: 0.85rem; font-weight: 600; color: var(--blue); margin-bottom: 36px;
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--muted-dark); font-size: 0.95rem; }
.step.final { background: var(--blue); border-color: var(--blue); }
.step.final::before { color: var(--white); }
.step.final p { color: #E3EBFF; }

/* Cards (agents) */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px;
}
.card .tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
  margin-bottom: 20px;
}
.card .tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); }
.card h3 { font-size: 1.35rem; margin-bottom: 10px; }
.card p { color: var(--muted); }
.card ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.card li { padding-left: 22px; position: relative; font-size: 0.96rem; }
.card li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 10px; height: 2px; background: var(--blue); }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line-dark); }
.principle { padding: 32px 28px 8px 0; }
.principle + .principle { padding-left: 28px; border-left: 1px solid var(--line-dark); }
.principle h3 { margin-bottom: 10px; }
.principle p { color: var(--muted-dark); font-size: 0.95rem; }

/* Sector block */
.sector {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; overflow: hidden;
  background: var(--navy); color: var(--white); border-radius: 20px;
}
.sector-text { padding: 56px; }
.sector-text h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
.sector-text p { color: var(--muted-dark); margin: 18px 0 30px; }
.sector-img { background: var(--navy-2); padding: 40px 0 0 40px; display: flex; align-items: flex-end; }
.sector-img img { border-radius: 10px 0 0 0; border: 1px solid var(--line-dark); border-right: 0; border-bottom: 0; }
.soon { margin-top: 20px; font-size: 0.92rem; color: var(--muted); }

/* Split (screens) */
.split { display: grid; grid-template-columns: 1fr 1.25fr; gap: 64px; align-items: center; }
.split + .split { margin-top: 96px; }
.split.reverse .split-text { order: 2; }
.split-text h3 { font-size: 1.6rem; margin-bottom: 14px; }
.split-text p { color: var(--muted); }
.frame { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--white); box-shadow: 0 30px 60px -30px rgba(10,18,34,0.35); }

/* Video */
.video {
  aspect-ratio: 16 / 9; border-radius: 18px; overflow: hidden;
  background: var(--navy-2); border: 1px solid var(--line-dark);
  display: grid; place-items: center; text-align: center; color: var(--muted-dark);
}
.video video { width: 100%; height: 100%; object-fit: cover; }
.video .ph-logo { font-size: 3rem; font-weight: 800; letter-spacing: -0.05em; color: var(--white); }

/* Tools */
.tools { display: flex; flex-wrap: wrap; gap: 10px; }
.tools span { padding: 9px 16px; border-radius: 999px; background: var(--white); border: 1px solid var(--line); font-size: 0.95rem; font-weight: 500; }
.small-note { font-size: 0.88rem; color: var(--muted); margin-top: 18px; }

/* Pilot */
.pilot { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.pilot-box { background: var(--navy-2); border: 1px solid var(--line-dark); border-radius: 18px; padding: 36px; }
.pilot-box ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 22px; }
.pilot-box li { display: grid; grid-template-columns: 88px 1fr; gap: 16px; }
.pilot-box .when { font-size: 0.85rem; font-weight: 600; color: var(--blue); padding-top: 2px; }
.pilot-box strong { display: block; }
.pilot-box span.t { color: var(--muted-dark); font-size: 0.95rem; }
.places { display: inline-flex; align-items: center; gap: 10px; margin-top: 28px; font-weight: 600; }
.places::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px rgba(47,107,255,0.22); }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; list-style: none; padding: 24px 40px 24px 0; font-weight: 600; font-size: 1.08rem; position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; font-weight: 400; color: var(--blue); transition: transform .2s ease;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 40px 26px 0; color: var(--muted); }

/* CTA */
.cta { text-align: center; }
.cta h2 { max-width: 760px; margin: 0 auto; }
.cta .lead { margin: 20px auto 36px; }
.cta .hero-cta { justify-content: center; }

/* Footer */
.site-footer { background: var(--navy); color: var(--muted-dark); padding: 56px 0 40px; border-top: 1px solid var(--line-dark); font-size: 0.92rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-grid .logo { font-size: 1.4rem; }
.footer-grid p { margin-top: 8px; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line-dark); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Legal */
.legal { padding: 72px 0 104px; }
.legal .wrap { max-width: 800px; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 40px; }
.legal h2 { font-size: 1.3rem; margin: 40px 0 12px; }
.legal p, .legal li { color: #333B4B; }
.legal p + p { margin-top: 10px; }
.todo { background: #FFF3C4; padding: 0 4px; border-radius: 4px; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* Responsive */
@media (max-width: 960px) {
  section { padding: 80px 0; }
  .problem-grid, .split, .pilot, .sector { grid-template-columns: 1fr; gap: 40px; }
  .split.reverse .split-text { order: 0; }
  .steps { grid-template-columns: 1fr 1fr; }
  .principles { grid-template-columns: 1fr 1fr; }
  .principle:nth-child(3) { padding-left: 0; border-left: 0; }
  .principle { border-bottom: 1px solid var(--line-dark); padding-bottom: 28px; }
  .sector-text { padding: 40px 32px 8px; }
  .sector-img { padding: 24px 0 0 32px; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .nav a:not(.btn) { display: none; }
  .hero { padding-top: 64px; }
  .hero .lead { font-size: 1.1rem; }
  .shot { margin-top: 48px; padding: 6px 6px 0; }
  .shot-bar { display: none; }
  .steps, .cards, .principles { grid-template-columns: 1fr; }
  .principle, .principle + .principle { padding: 24px 0; border-left: 0; }
  .card { padding: 26px 22px; }
  .pilot-box { padding: 26px 22px; }
  .pilot-box li { grid-template-columns: 1fr; gap: 4px; }
  .sector-text { padding: 32px 22px 8px; }
  .sector-img { padding: 20px 0 0 22px; }
  .hero-cta .btn { flex: 1 1 auto; }
}