:root {
  --navy-950: #020b1d;
  --navy-900: #031533;
  --navy-800: #032142;
  --navy-700: #0a3470;
  --blue-500: #2e8cff;
  --sky-300: #7cc4ff;
  --cyan-200: #9be7ff;
  --ink: #0f1b2d;
  --muted: #5b6b80;
  --line: #dde5ef;
  --bg: #ffffff;
  --tint: #f4f3ef;
  --gold: #f3d27a;
  --ok: #0f8a4f;
  --err: #c0392b;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(3, 21, 51, 0.12);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; color: var(--ink); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.wrap { width: min(1180px, 100% - 32px); margin: 0 auto; }
.skip { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px 12px; z-index: 100; border-radius: 8px; }
.skip:focus { left: 8px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* ---------- header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(2, 11, 29, 0.86); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.header-row { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { height: 36px; width: auto; }
.brand-word { color: var(--sky-300); font-weight: 800; letter-spacing: 3px; font-size: 14px; padding-top: 14px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: #d5e3f5; text-decoration: none; font-weight: 500; font-size: 15px; }
.nav a:hover { color: #fff; }
.nav .btn { color: var(--navy-800); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 10px; border: 0; border-radius: 10px; padding: 13px 22px; font: 600 15px/1.2 Inter, system-ui, sans-serif; text-decoration: none; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--sky-300); outline-offset: 2px; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-light { background: #fff; color: var(--navy-800); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, 0.35); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); }
.btn-primary { background: var(--navy-800); color: #fff; width: 100%; justify-content: center; padding: 15px 22px; font-size: 16px; }
.btn-primary:hover { background: var(--navy-700); }
.btn[disabled] { opacity: .65; cursor: progress; transform: none; }

/* ---------- hero ---------- */
.hero { color: #fff; padding: 64px 0 72px; background:
  radial-gradient(900px 520px at 85% 10%, rgba(46, 140, 255, 0.28), transparent 60%),
  radial-gradient(700px 500px at 10% 100%, rgba(10, 52, 112, 0.6), transparent 60%),
  linear-gradient(135deg, var(--navy-950) 0%, var(--navy-900) 45%, #062a64 100%); }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: start; }
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.18); font-weight: 600; font-size: 14px; color: #e6f0ff; }
.pill-beta { color: var(--gold); border-color: rgba(243, 210, 122, 0.4); background: rgba(243, 210, 122, 0.08); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 0 rgba(243, 210, 122, .7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(243, 210, 122, 0); } 100% { box-shadow: 0 0 0 0 rgba(243, 210, 122, 0); } }
.hero h1 { font-size: clamp(36px, 5vw, 54px); line-height: 1.08; margin: 0 0 18px; letter-spacing: -0.02em; }
.lead { font-size: 19px; color: #e8eef8; margin: 0 0 16px; }
.sub { color: #c4d2e6; margin: 0 0 22px; }
.checks { list-style: none; padding: 0; margin: 0 0 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; }
.checks li { position: relative; padding-left: 26px; font-size: 15px; color: #e6eef9; }
.checks li::before { content: ""; position: absolute; left: 2px; top: 6px; width: 12px; height: 7px; border-left: 2px solid var(--cyan-200); border-bottom: 2px solid var(--cyan-200); transform: rotate(-45deg); }
.checks.dark li { color: var(--ink); }
.checks.dark li::before { border-color: var(--navy-700); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.beta-note { margin: 18px 0 0; font-size: 14px; color: #aebfd6; }
.hero-cards { display: grid; gap: 16px; }
.glass { background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--radius); padding: 22px 24px; }
.glass h2 { margin: 4px 0 10px; font-size: 22px; line-height: 1.3; }
.glass p { margin: 0; color: #cfdced; font-size: 15px; }
.eyebrow { text-transform: uppercase; letter-spacing: 1.2px; font-size: 13px; font-weight: 700; color: var(--cyan-200); margin: 0 0 6px; }
.eyebrow.dark { color: var(--navy-700); }
.eyebrow.center, .center { text-align: center; }
.glass-qc { background: rgba(243, 210, 122, 0.06); border-color: rgba(243, 210, 122, 0.3); }
.qc-title { display: flex; align-items: center; gap: 8px; color: var(--gold); font-size: 17px !important; }

/* ---------- examples ---------- */
.examples { background: linear-gradient(180deg, #062a64 0%, var(--navy-900) 100%); padding: 72px 0; color: #fff; }
.section-title { font-size: clamp(28px, 3.4vw, 38px); line-height: 1.15; margin: 0 0 12px; letter-spacing: -0.015em; }
.section-title.big { font-size: clamp(32px, 4.4vw, 48px); }
.section-sub { color: var(--muted); font-size: 17px; margin: 0 0 28px; }
.light { color: #fff; }
.section-sub.light { color: #c4d2e6; }
.narrow { max-width: 720px; margin-left: auto; margin-right: auto; }
.viewer { position: relative; border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: 0 24px 60px rgba(0, 0, 0, .35); }
.viewer-main { display: block; width: 100%; padding: 0; border: 0; background: #fff; cursor: zoom-in; position: relative; }
.viewer-main img { width: 100%; aspect-ratio: 1713 / 586; object-fit: cover; object-position: center; }
.viewer-caption { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 22px 14px; text-align: left; background: linear-gradient(transparent, rgba(2, 11, 29, .82)); color: #fff; display: flex; flex-direction: column; font-size: 13px; }
.viewer-caption strong { font-size: 18px; }
.viewer-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; border: 0; background: rgba(2, 11, 29, .7); color: #fff; font-size: 30px; line-height: 1; cursor: pointer; }
.viewer-arrow.prev { left: 14px; }
.viewer-arrow.next { right: 14px; }
.full-btn { margin: 18px 0; }
.thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.thumb { border: 1px solid rgba(255, 255, 255, .14); background: rgba(255, 255, 255, .05); border-radius: 10px; padding: 0; overflow: hidden; cursor: pointer; color: #b9c8dd; text-align: left; font: 600 13px/1.35 Inter, sans-serif; }
.thumb img { width: 100%; height: 80px; object-fit: cover; background: #fff; }
.thumb span { display: block; padding: 9px 10px; }
.thumb.active { border-color: var(--cyan-200); color: #fff; box-shadow: 0 0 0 2px rgba(155, 231, 255, .35); }
.not-wrapper { margin: 36px 0 0; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .12); color: #c4d2e6; font-size: 15px; }

/* ---------- sections & forms ---------- */
.section { padding: 80px 0; }
.section-tint { background: #fff; padding: 56px 0; }
.two-col { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 0 0 20px; display: grid; gap: 14px; }
.steps li { counter-increment: s; position: relative; padding: 14px 16px 14px 62px; border: 1px solid var(--line); border-radius: 12px; background: #fbfcfe; }
.steps li::before { content: counter(s); position: absolute; left: 16px; top: 14px; width: 32px; height: 32px; border-radius: 50%; background: var(--navy-800); color: #fff; display: grid; place-items: center; font-weight: 700; }
.steps strong { display: block; }
.steps span { color: var(--muted); font-size: 15px; }
.fine { font-size: 14px; color: var(--muted); }
.sticky-col { position: sticky; top: 92px; }
.card { color: var(--ink); background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
.form h3 { margin: 0 0 18px; font-size: 22px; }
.form label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 14px; }
.form input:not([type=checkbox]):not([type=file]), .form select, .form textarea { display: block; width: 100%; margin-top: 6px; padding: 12px 13px; border: 1px solid #c9d4e2; border-radius: 10px; font: 400 15px/1.4 Inter, sans-serif; color: var(--ink); background: #fff; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 0; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(46, 140, 255, .18); }
.form .invalid { border-color: var(--err) !important; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 14px; }
.opt, .req { font-weight: 400; color: var(--muted); }
fieldset { border: 0; padding: 0; margin: 0 0 14px; }
legend { font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { margin: 0 !important; cursor: pointer; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: inline-block; padding: 7px 12px; border: 1px solid #c9d4e2; border-radius: 999px; font-weight: 500; font-size: 13.5px; background: #fff; }
.chip input:checked + span { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.chip input:focus-visible + span { outline: 3px solid var(--sky-300); outline-offset: 1px; }
.drop { position: relative; border: 2px dashed #b9c7da; border-radius: 12px; padding: 18px; text-align: center; background: #f7f9fc; cursor: pointer; }
.drop.over { border-color: var(--blue-500); background: #eef5ff; }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop-title { display: block; font-size: 15px; color: var(--navy-800); }
.drop-hint { display: block; font-weight: 400; font-size: 13px; color: var(--muted); }
.drop-list { display: block; font-weight: 500; font-size: 13px; color: var(--ink); margin-top: 6px; }
.consent { display: flex !important; gap: 10px; align-items: flex-start; font-weight: 400 !important; font-size: 13.5px !important; color: #334155; }
.consent input { margin-top: 3px; width: 17px; height: 17px; flex: 0 0 auto; accent-color: var(--navy-800); }
.form-msg { margin: 12px 0 0; font-size: 14.5px; min-height: 1em; }
.form-msg.ok { color: var(--ok); font-weight: 600; }
.form-msg.err { color: var(--err); }
.form.sent .form-msg.ok { padding: 14px; background: #eaf7f0; border-radius: 10px; }

/* ---------- NVIDIA ---------- */
.announce { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; background: var(--tint); border: 1px solid #e6e2d8; border-left: 5px solid #f07f2f; border-radius: var(--radius); padding: 36px 40px; }
.kicker { display: flex; align-items: center; gap: 12px; text-transform: uppercase; letter-spacing: 1.6px; font-size: 12px; font-weight: 700; color: #a4521b; margin: 0 0 10px; }
.kicker::before { content: ""; width: 28px; height: 1px; background: #a4521b; }
.announce h2 { margin: 0; font-size: clamp(24px, 3vw, 34px); line-height: 1.15; color: #10213a; letter-spacing: -0.02em; }
.announce img { border-radius: 12px; }

/* ---------- waitlist ---------- */
.waitlist-section { background: linear-gradient(135deg, var(--navy-950), #062a64); color: #fff; }

/* ---------- investors ---------- */
.invest { margin-top: 36px; }
.invest-card h3 { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; font-size: 20px; color: var(--navy-800); }
.invest-card p { color: #475569; }
.invest-card .checks { grid-template-columns: 1fr; margin: 0 0 16px; }
.invest-card .checks li { font-size: 15px; }

/* ---------- footer ---------- */
.site-footer { background: var(--navy-950); color: #9fb0c8; padding: 40px 0; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.footer-row img { height: 72px; width: auto; }
.footer-row nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-row nav a { color: #d0dcec; text-decoration: none; font-size: 14px; }
.footer-row nav a:hover { color: #fff; text-decoration: underline; }
.host { width: 100%; margin: 0; font-size: 12.5px; color: #8496b0; line-height: 1.5; }
.host strong { color: #b6c4d8; font-weight: 600; }
.host a { color: #b6c4d8; }
.copy { width: 100%; margin: 0; font-size: 13px; }

/* ---------- lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(2, 11, 29, .94); display: grid; place-items: center; padding: 24px; }
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 100%; max-height: 92vh; border-radius: 8px; background: #fff; }
.lightbox-close { position: absolute; top: 14px; right: 18px; background: none; border: 0; color: #fff; font-size: 40px; cursor: pointer; line-height: 1; }

/* ---------- legal pages ---------- */
.legal-hero { background: linear-gradient(135deg, var(--navy-950), #062a64); color: #fff; padding: 56px 0 44px; }
.legal-hero h1 { margin: 0 0 8px; font-size: clamp(30px, 4vw, 42px); }
.legal-hero p { margin: 0; color: #c4d2e6; }
.legal { padding: 48px 0 72px; }
.legal .wrap { max-width: 820px; }
.legal h2 { font-size: 22px; margin: 34px 0 10px; color: var(--navy-800); }
.legal h3 { font-size: 17px; margin: 22px 0 6px; }
.legal p, .legal li { color: #334155; }
.legal .callout { background: #f3f7fd; border: 1px solid #d6e3f5; border-radius: 12px; padding: 16px 18px; }
.center-page { min-height: 60vh; display: grid; place-items: center; text-align: center; padding: 64px 16px; }
.center-page h1 { font-size: clamp(30px, 4vw, 42px); margin: 0 0 10px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-grid, .two-col, .announce { grid-template-columns: 1fr; }
  .sticky-col { position: static; }
  .announce { padding: 28px 24px; }
  .nav a:not(.btn) { display: none; }
}
@media (max-width: 640px) {
  .hero { padding: 40px 0 52px; }
  .checks { grid-template-columns: 1fr; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  .thumbs { grid-template-columns: repeat(2, 1fr); }
  .viewer-main img { aspect-ratio: 4 / 3; }
  .viewer-arrow { width: 38px; height: 38px; font-size: 24px; }
  .card { padding: 20px; }
  .section { padding: 56px 0; }
  .brand-word { font-size: 12px; letter-spacing: 2px; }
  .lead { font-size: 17px; }
  .pill { font-size: 13px; }
  .btn { width: 100%; justify-content: center; }
  .nav .btn { width: auto; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .dot { animation: none; } .btn { transition: none; } }