:root {
  --bg: #050708;
  --bg-elev: #0b1014;
  --panel: #0e151b;
  --line: rgba(0, 251, 218, 0.28);
  --line-soft: rgba(255, 255, 255, 0.08);
  --text: #f3f6f8;
  --muted: #9aa7b2;
  --teal: #00fbda;
  --teal-dim: #00c8b0;
  --gold: #f0c84a;
  --glow: 0 0 24px rgba(0, 251, 218, 0.35);
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --display: "Orbitron", "Inter", system-ui, sans-serif;
  --wrap: min(1120px, calc(100% - 2.5rem));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(0, 251, 218, 0.08), transparent 60%),
    var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--display); letter-spacing: 0.02em; line-height: 1.15; margin: 0; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--teal); color: #000; padding: 0.5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.wrap { width: var(--wrap); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(5, 7, 8, 0.82);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner {
  display: flex; align-items: center; gap: 1.25rem;
  min-height: 72px;
}
.brand img { width: 168px; height: auto; }
.nav {
  display: flex; gap: 1.25rem; margin-left: auto; margin-right: 1rem;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
}
.nav a { color: var(--muted); padding: 0.35rem 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a.is-active { color: var(--text); border-bottom-color: var(--teal); }

.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-weight: 700; font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase;
  border: 1px solid var(--teal);
  color: var(--text);
  padding: 0.65rem 1rem;
  border-radius: 999px;
  box-shadow: var(--glow);
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
}
.btn:hover { background: rgba(0, 251, 218, 0.12); transform: translateY(-1px); }
.btn-lg { padding: 0.95rem 1.4rem; font-size: 0.9rem; }
.btn .arrow { color: var(--teal); }
.x-icon { flex-shrink: 0; }

/* Hero */
.hero {
  position: relative;
  padding: 2.5rem 0 3.5rem;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
}
.hero-bg img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 35%;
  opacity: 0.42;
  filter: saturate(0.92) brightness(0.78) contrast(1.05);
}
.hero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(5,7,8,0.62) 0%, rgba(5,7,8,0.82) 38%, rgba(5,7,8,0.94) 72%, rgba(5,7,8,0.98) 100%),
    radial-gradient(520px 340px at 50% 28%, rgba(5,7,8,0.72), transparent 70%),
    radial-gradient(700px 400px at 50% 20%, rgba(0,251,218,0.10), transparent 70%);
}
.hero-content { text-align: center; }
.status-pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin: 0 auto 1.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(0, 251, 218, 0.08);
  color: var(--teal);
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
}
.pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 10px var(--teal);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}
.hero-brand { display: grid; place-items: center; gap: 0.35rem; margin-bottom: 1.1rem; }
.hero-mark {
  width: 96px; height: 96px;
  background: transparent;
  mix-blend-mode: screen;
  filter: drop-shadow(0 0 18px rgba(0, 251, 218, 0.45));
}
.hero-brand picture {
  display: grid;
  place-items: center;
  background: transparent;
  line-height: 0;
}
.hero-wordmark {
  font-family: var(--display); font-weight: 800; font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  letter-spacing: 0.18em;
}
.hero-wordmark span { color: var(--teal); }
.hero h1 {
  font-size: clamp(1.85rem, 5vw, 3.35rem);
  text-transform: uppercase;
  max-width: 18ch;
  margin-inline: auto;
}
.hero h1 em {
  font-style: normal; color: var(--teal);
  text-shadow: 0 0 28px rgba(0, 251, 218, 0.35);
}
.hero-lede {
  margin-top: 0.9rem;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d7e0e6;
}
.hero-support {
  max-width: 52rem;
  margin: 1rem auto 0;
  color: var(--muted);
  font-size: 1.02rem;
}
.hero-meta {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  margin: 1.75rem auto 0; max-width: 48rem;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 2.25rem;
  padding: 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 16px;
  background: rgba(8, 14, 18, 0.72);
  backdrop-filter: blur(8px);
}
.feature-grid li {
  display: grid; justify-items: center; gap: 0.55rem;
  text-align: center;
  padding: 0.65rem 0.4rem;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: #dce6ec;
}
.feature-grid li + li { border-left: 1px solid rgba(0, 251, 218, 0.18); }
.fi { color: var(--teal); filter: drop-shadow(0 0 8px rgba(0, 251, 218, 0.35)); }

/* Experiments */
.experiments { padding: 4rem 0 3rem; }
.section-head { text-align: center; margin-bottom: 2rem; }
.eyebrow {
  color: var(--teal); font-size: 0.78rem; font-weight: 800;
  letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: 0.55rem;
}
.section-head h2, .verified-copy h2, .founding h2 {
  font-size: clamp(1.45rem, 3.2vw, 2.2rem);
  text-transform: uppercase;
}
.section-sub { color: var(--muted); margin-top: 0.55rem; }
.exp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.exp-card {
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, #101820, #0a1015);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.4), 0 18px 40px rgba(0,0,0,0.35);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.exp-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 28px rgba(0, 251, 218, 0.18), 0 22px 44px rgba(0,0,0,0.4);
}
.exp-media {
  aspect-ratio: 16 / 10;
  height: auto;
  min-height: 180px;
  background: #070b0e;
  overflow: hidden;
}
.exp-media img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 40%;
  display: block;
}
.exp-body { padding: 1.15rem 1.2rem 1.3rem; display: grid; gap: 0.65rem; flex: 1; }
.exp-tags { display: flex; gap: 0.45rem; flex-wrap: wrap; }
.tag {
  font-size: 0.68rem; font-weight: 800; letter-spacing: 0.1em;
  padding: 0.22rem 0.5rem; border-radius: 6px; border: 1px solid;
}
.tag.teal { color: var(--teal); border-color: var(--line); background: rgba(0,251,218,0.08); }
.tag.gold { color: var(--gold); border-color: rgba(240,200,74,0.45); background: rgba(240,200,74,0.08); }
.exp-body h3 { font-size: 1.05rem; text-transform: uppercase; }
.exp-body p { color: var(--muted); font-size: 0.92rem; }
.learn {
  margin-top: auto; padding-top: 0.4rem;
  color: var(--teal); font-weight: 700; font-size: 0.8rem;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.learn:hover { text-decoration: underline; }
.sim-note {
  text-align: center; margin-top: 1.35rem;
  color: var(--muted); font-size: 0.82rem;
}

/* Verified Lock */
.verified {
  padding: 3.5rem 0;
  border-block: 1px solid var(--line-soft);
  background:
    radial-gradient(800px 360px at 15% 40%, rgba(0,251,218,0.07), transparent 60%),
    var(--bg-elev);
}
.verified-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.35fr 0.95fr;
  gap: 1.5rem;
  align-items: center;
}
.verified-visual {
  display: grid; place-items: center;
}
.verified-visual img {
  width: min(260px, 100%);
  filter: drop-shadow(0 0 28px rgba(0, 251, 218, 0.35));
}
.verified-copy h2 { margin: 0.35rem 0 0.8rem; text-transform: uppercase; }
.verified-copy > p { color: var(--muted); max-width: 38rem; }
.flow {
  display: flex; flex-wrap: wrap; gap: 0.55rem;
  margin-top: 1.35rem;
  align-items: center;
}
.flow li {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0,251,218,0.05);
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase;
}
.flow li:not(:last-child)::after {
  content: "→";
  margin-left: 0.55rem;
  color: var(--teal);
}
.flow-ico { color: var(--teal); }

.status-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.25rem 1.2rem;
  background: rgba(8, 14, 18, 0.9);
  box-shadow: var(--glow);
}
.sc-label {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}
.sc-state {
  margin-top: 0.35rem;
  font-family: var(--display);
  font-size: 1.35rem; font-weight: 800;
  color: var(--teal); text-transform: uppercase;
}
.progress {
  margin: 0.9rem 0 1rem;
  height: 8px; border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.progress span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--teal-dim), var(--teal));
  box-shadow: 0 0 12px rgba(0,251,218,0.55);
}
.checks { display: grid; gap: 0.45rem; }
.checks li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: #d7e0e6;
}
.checks li::before {
  content: "✓";
  position: absolute; left: 0; color: var(--teal); font-weight: 800;
}

/* Founding */
.founding {
  padding: 3.5rem 0 2.7rem; /* ~22% tighter vs prior 4.5/3.5 */
  text-align: center;
  background:
    radial-gradient(700px 280px at 50% 0%, rgba(0,251,218,0.1), transparent 65%);
}
.founding-inner { display: grid; place-items: center; gap: 0.85rem; }
.founding-cta,
.founding .btn-lg {
  width: 100%;
  max-width: min(100%, 26rem);
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  white-space: nowrap;
  overflow: hidden;
  text-align: center;
  font-size: clamp(0.68rem, 3.5vw, 0.88rem);
  letter-spacing: 0.04em;
  padding: 0.9rem clamp(0.7rem, 3.5vw, 1.35rem);
}
.founding-cta .btn-label {
  min-width: 0;
  overflow: hidden;
}
.founding-cta .x-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}
.founding p { color: var(--muted); max-width: 36rem; }
.future-note {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: #6f7d88;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 1.25rem 0 1.5rem;
  background: #030506;
}
.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
}
.brand-sm {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--display); font-weight: 700; font-size: 0.78rem; letter-spacing: 0.1em;
}
.brand-sm .dot { color: var(--teal); }
.disclaimer {
  text-align: center;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
}
.built {
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--teal);
}

/* Responsive */
@media (max-width: 960px) {
  .nav { display: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid li:nth-child(odd) { border-left: 0; }
  .feature-grid li:nth-child(3), .feature-grid li:nth-child(4) {
    border-top: 1px solid rgba(0, 251, 218, 0.18);
  }
  .feature-grid li:nth-child(even) { border-left: 1px solid rgba(0, 251, 218, 0.18); }
  .exp-grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
  .verified-grid { grid-template-columns: 1fr; text-align: center; }
  .verified-copy > p { margin-inline: auto; }
  .flow { justify-content: center; }
  .flow li:not(:last-child)::after { content: none; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; justify-items: center; }
}

@media (max-width: 640px) {
  :root { --wrap: min(100% - 1.25rem, 1120px); }
  .header-inner {
    min-height: 60px;
    gap: 0.65rem;
    padding-block: 0.35rem;
  }
  .brand { flex: 0 1 auto; min-width: 0; }
  .brand img { width: min(128px, 42vw); height: auto; }
  .header-inner .btn {
    flex: 0 0 auto;
    padding: 0.5rem 0.7rem;
    font-size: 0.68rem;
    max-width: 48%;
  }
  .header-inner .btn .arrow { display: none; }
  .founding-cta,
  .founding .btn-lg {
    width: 100%;
    max-width: 100%;
    font-size: clamp(0.64rem, 3.4vw, 0.78rem);
    letter-spacing: 0.03em;
    padding: 0.85rem 0.75rem;
    gap: 0.4rem;
  }
  .hero { padding-top: 1.75rem; }
  .hero-mark { width: 80px; height: 80px; mix-blend-mode: screen; }
  .hero-meta { justify-content: center; text-align: center; }
  .feature-grid { gap: 0; padding: 0.35rem; }
  .exp-media { min-height: 160px; aspect-ratio: 16 / 10; }
  .status-card { text-align: left; }
}
@media (max-width: 360px) {
  .brand img { width: min(110px, 40vw); }
  .header-inner .btn { font-size: 0.62rem; padding: 0.45rem 0.55rem; }
  .founding-cta,
  .founding .btn-lg { font-size: 0.62rem; padding: 0.75rem 0.55rem; letter-spacing: 0.02em; gap: 0.3rem; }
  .founding-cta .x-icon { width: 14px; height: 14px; }
}