:root {
  color-scheme: light;
  --ink: #0F2437;        /* navy: headings, buttons */
  --body: #4A5866;       /* body text */
  --muted: #6B7684;
  --line: #E4E1D9;
  --bg: #FFFFFF;
  --tint: #F6F4EF;       /* cream sections */
  --panel: #F1F0EB;      /* showcase panel */
  --green: #0B7A55;
  --green-soft: #E3F4EC;
  --teal-soft: #E1F2F3;
  --sand-soft: #F7EEDB;
  --amber: #B45F06;
  --glow: linear-gradient(135deg, #BFE8D6 0%, #9FD8D3 45%, #F2DFB8 100%);
  --radius: 20px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--body); font-family: var(--font); font-optical-sizing: auto; font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); }
h1, h2, h3 { color: var(--ink); margin: 0; font-weight: 600; }
p { margin: 0; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 860px; }
.center { text-align: center; }
.eyebrow { font-size: 14px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--green); margin-bottom: 16px; }
.lede { font-size: 19px; line-height: 1.6; color: var(--body); margin-top: 20px; }
.fine { font-size: 14px; color: var(--muted); }
.h-xl { font-size: clamp(32px, 4.4vw, 52px); line-height: 1.08; letter-spacing: -0.025em; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 50px; padding: 0 26px; border-radius: 999px; font: 600 16px/1 var(--font); text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-sm { height: 40px; padding: 0 18px; font-size: 15px; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #18354F; }
.btn-light { background: #fff; color: var(--ink); border-color: #CFCBC1; }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid #7FC9A9; outline-offset: 2px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.88); backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { height: 68px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { color: var(--ink); text-decoration: none; font-size: 15px; font-weight: 500; opacity: .8; }
.nav-links a:hover { opacity: 1; }

/* Frames: product shots on a soft gradient, like a desk monitor */
.frame { margin: 0; padding: clamp(14px, 2.6vw, 34px); border-radius: 28px; background: var(--glow); }
.frame img { border-radius: 12px; box-shadow: 0 30px 60px -20px rgba(15,36,55,.35), 0 0 0 1px rgba(15,36,55,.08); background: #fff; }

/* Hero */
.hero { padding: 72px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.nowrap { white-space: nowrap; }
.hero h1 { font-size: clamp(42px, 5.6vw, 72px); line-height: 1.02; letter-spacing: -0.035em; }
.hero .lede { max-width: 520px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 20px; }

/* Sections */
.section { padding: 112px 0; }
.section.tint { background: var(--tint); }
.section-head { max-width: 760px; margin-bottom: 56px; }

/* Capability cards */
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 64px; }
.section-head + .cards4 { margin-top: 0; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: #fff; }
.card h3 { font-size: 20px; margin: 18px 0 8px; }
.card.plain h3 { margin-top: 0; }
.card p { font-size: 16px; }
.icon { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; }
.icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.i-green { background: var(--green-soft); color: var(--green); }
.i-teal { background: var(--teal-soft); color: #11727A; }
.i-sand { background: var(--sand-soft); color: var(--amber); }
.i-navy { background: #E6ECF2; color: var(--ink); }

/* Feature accordion + stage */
.showcase { display: grid; grid-template-columns: 0.75fr 1.5fr; gap: 48px; align-items: center; background: var(--panel); border-radius: 28px; padding: 56px 0 56px 56px; overflow: hidden; }
.acc-item { border-bottom: 1px solid #D9D6CD; }
.acc-item:last-child { border-bottom: 0; }
.acc-item h3 { margin: 0; }
.acc-btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 0; background: none; border: 0; cursor: pointer; text-align: left; font: 600 clamp(20px, 2vw, 26px)/1.2 var(--font); letter-spacing: -0.015em; color: var(--ink); }
.chev { flex: none; width: 12px; height: 12px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg) translate(-3px, -3px); transition: transform .2s; }
.acc-btn[aria-expanded="true"] .chev { transform: rotate(-135deg) translate(-3px, -3px); }
.acc-panel { padding: 0 0 24px; }
.acc-panel p { font-size: 17px; }
.acc-img { display: none; }
.showcase-stage { padding: 32px 0 32px 32px; border-radius: 24px 0 0 24px; }
.showcase-stage img { border-radius: 12px 0 0 12px; transition: opacity .25s ease; }
.showcase-stage img.fading { opacity: 0; }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.steps li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.num { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 999px; background: var(--ink); color: #fff; font-weight: 600; font-size: 15px; }
.steps h3 { font-size: 20px; margin: 18px 0 8px; }
.steps p { font-size: 16px; }

/* Videos */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 32px; }
.video { margin: 0; }
.video-box { position: relative; border-radius: 16px; overflow: hidden; background: var(--glow); padding: 10px; }
.video-box video { width: 100%; aspect-ratio: 16 / 10; display: block; border-radius: 10px; background: #fff; object-fit: cover; }
.video-soon { display: none; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: rgba(15,36,55,.88); color: #fff; font-size: 14px; font-weight: 600; padding: 10px 16px; border-radius: 999px; white-space: nowrap; }
.video.pending video { pointer-events: none; filter: saturate(.7) brightness(.97); }
.video.pending .video-soon { display: block; }
.video figcaption { padding: 16px 4px 0; display: grid; gap: 4px; }
.video figcaption b { color: var(--ink); font-size: 18px; font-weight: 600; }
.video figcaption span { font-size: 15px; }

.cards4 + .fine, .videos + .fine { margin-top: 28px; }
.join-copy .fine { margin-top: 16px; }

/* Panels */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 36px; }
.panel h3 { font-size: 24px; margin-bottom: 14px; }
.panel ul { margin: 0; padding-left: 20px; display: grid; gap: 8px; }
.panel-real { border-top: 5px solid var(--green); }
.panel-real h3 { color: var(--green); }
.panel-sim { border-top: 5px solid var(--amber); }
.panel-sim h3 { color: var(--amber); }
.timeline { list-style: none; padding: 0; margin: 24px 0 20px; display: grid; grid-template-columns: repeat(3, 1fr); background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.timeline li { padding: 22px 28px; display: grid; gap: 2px; }
.timeline li + li { border-left: 1px solid var(--line); }
.timeline b { color: var(--green); font-size: 13px; letter-spacing: .06em; text-transform: uppercase; }
.timeline span { color: var(--ink); font-size: 18px; }

/* Form */
.join { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; align-items: start; }
.form { display: grid; gap: 18px; background: var(--tint); border-radius: 24px; padding: 36px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--ink); }
.opt { font-weight: 400; color: var(--muted); }
.form input, .form select, .form textarea { width: 100%; font: 400 16px/1.4 var(--font); color: var(--ink); background: #fff; border: 1px solid #CFCBC1; border-radius: 12px; padding: 12px 14px; }
.form textarea { resize: vertical; }
.form .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--body); }
.form .check input { width: 18px; height: 18px; margin-top: 3px; flex: none; accent-color: var(--green); }
.form .btn { justify-self: start; }
.form [aria-invalid="true"] { border-color: #C0392B; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { font-size: 15px; min-height: 1.5em; }
.form-status.ok { color: var(--green); font-weight: 600; }
.form-status.err { color: #B03A2E; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 48px 0 32px; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.footer .fine { margin-top: 8px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--ink); text-decoration: none; font-size: 15px; }
.copy { margin-top: 32px; }

/* Privacy page */
.doc { max-width: 760px; padding: 72px 24px 112px; }
.doc h1 { font-size: clamp(36px, 5vw, 52px); letter-spacing: -0.03em; line-height: 1.08; margin-bottom: 12px; }
.doc h2 { font-size: 22px; margin: 40px 0 10px; }
.doc p, .doc li { margin-bottom: 10px; }

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .cards4, .steps { grid-template-columns: 1fr 1fr; }
  .showcase { grid-template-columns: 1fr; padding: 32px; }
  .showcase-stage { display: none; }
  .acc-img { display: block; margin-top: 20px; border-radius: 12px; box-shadow: 0 0 0 1px rgba(15,36,55,.08), 0 16px 32px -16px rgba(15,36,55,.3); }
  .videos { grid-template-columns: 1fr; max-width: 640px; margin-left: auto; margin-right: auto; }
  .join { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .nav-links { display: none; }
  .nav-inner { justify-content: space-between; }
  .hero { padding-top: 40px; }
  .section { padding: 72px 0; }
  .section-head { margin-bottom: 36px; }
  .cards4, .steps, .split, .row2, .timeline { grid-template-columns: 1fr; }
  .timeline li + li { border-left: 0; border-top: 1px solid var(--line); }
  .showcase { padding: 8px 20px 20px; border-radius: 20px; }
  .form, .panel { padding: 24px; }
  .lede { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .showcase-stage img, .chev { transition: none; }
}