:root {
  --color-primary: #000000;
  --color-on-primary: #ffffff;
  --color-ink: #000000;
  --color-body: #959494;
  --color-hairline: #ebebeb;
  --color-canvas: #ffffff;
  --color-canvas-dark: #010120;
  --color-surface-dark-soft: #313641;
  --color-on-dark: #ffffff;
  --color-accent-orange: #fc4c02;
  --color-accent-magenta: #ef2cc1;
  --color-accent-periwinkle: #bdbbff;
  --color-accent-mint: #c8f6f9;
  --rounded-none: 0px;
  --rounded-xs: 3.25px;
  --rounded-sm: 4px;
  --rounded-md: 8px;
  --rounded-full: 9999px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --space-section: 80px;
  --font: "The Future", Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "PP Neue Montreal Mono", ui-monospace, "SF Mono", Menlo, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  font-size: 16px;
  font-weight: 400;
  line-height: 20.8px;
  letter-spacing: -0.16px;
}
a { color: var(--color-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

.header {
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
  flex-wrap: wrap;
  padding: 16px 0;
}
.logo {
  font-weight: 500;
  color: var(--color-on-dark);
  font-size: 16px;
  letter-spacing: -0.16px;
}
.nav { display: flex; flex-wrap: wrap; gap: 24px; flex: 1; }
.nav a { color: var(--color-on-dark); font-weight: 400; }
.nav a.on { text-decoration: underline; text-underline-offset: 4px; }
.back { margin-left: auto; font-size: 13px; color: #bdbbff; }

.mono {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  line-height: 1.2;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: 0;
  border-radius: var(--rounded-sm);
  padding: 4px 24px;
  min-height: 32px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08px;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  line-height: 16px;
}
.btn:hover { opacity: 0.88; text-decoration: none; color: var(--color-on-primary); }
.btn-mint { background: var(--color-accent-mint); color: var(--color-ink); }
.btn-mint:hover { color: var(--color-ink); }
.btn-white { background: var(--color-canvas); color: var(--color-ink); }
.btn-ghost {
  background: var(--color-surface-dark-soft);
  color: var(--color-on-dark);
}
.btn-outline {
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--rounded-xs);
}

.hero {
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
  padding: 80px 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero h1 {
  font-size: 64px;
  font-weight: 500;
  line-height: 70.4px;
  letter-spacing: -1.92px;
  margin: 8px 0 16px;
}
.hero p {
  margin: 0 0 24px;
  color: #c8c8d4;
  max-width: 28em;
  font-size: 18px;
  line-height: 23.4px;
  letter-spacing: -0.18px;
}
.ribbon {
  height: 280px;
  border-radius: var(--rounded-sm);
  background:
    linear-gradient(115deg, var(--color-accent-orange) 0%, var(--color-accent-magenta) 48%, var(--color-accent-periwinkle) 100%);
  position: relative;
  overflow: hidden;
}
.ribbon::after {
  content: "";
  position: absolute;
  inset: 18% 12% auto auto;
  width: 46%;
  height: 70%;
  background: linear-gradient(160deg, rgba(255,255,255,0.28), transparent);
  border-radius: 40% 60% 50% 50%;
}

.section { padding: 80px 0; }
.section.dark {
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
}
.section h2 {
  font-size: 40px;
  font-weight: 500;
  line-height: 48px;
  letter-spacing: -0.8px;
  margin: 8px 0 32px;
}
.muted { color: var(--color-body); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  padding: 24px;
}
.card h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 500;
  line-height: 25.3px;
  letter-spacing: -0.22px;
}
.card p { margin: 0; color: var(--color-body); }
.stat {
  background: var(--color-accent-mint);
  color: var(--color-ink);
  border: 0;
}
.stat h3 { font-size: 40px; letter-spacing: -0.8px; line-height: 48px; }
.research {
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
  border: 1px solid rgba(255,255,255,0.12);
}
.research p { color: #b8b8c8; }
.code {
  background: var(--color-canvas-dark);
  color: var(--color-on-dark);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05px;
  border-radius: var(--rounded-sm);
  padding: 24px;
}

.list { list-style: none; margin: 0; padding: 0; }
.list li {
  border-bottom: 1px solid var(--color-hairline);
  padding: 12px 16px;
  display: flex;
  gap: 16px;
}
.list .date {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: var(--color-body);
  min-width: 96px;
}

.ph {
  background: var(--color-hairline);
  color: var(--color-body);
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  margin-bottom: 12px;
  border-radius: var(--rounded-sm);
}

form label {
  display: block;
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.55px;
  text-transform: uppercase;
}
form input, form textarea {
  width: 100%;
  max-width: 480px;
  padding: 10px 12px;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--rounded-sm);
  font: inherit;
  color: var(--color-ink);
  background: var(--color-canvas);
  margin-bottom: 12px;
}

.footer { padding: 80px 0 0; color: var(--color-ink); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-bottom: 48px;
}
.footer a { color: var(--color-body); }
.wordmark-banner {
  font-size: clamp(48px, 12vw, 120px);
  font-weight: 500;
  letter-spacing: -1.92px;
  line-height: 0.9;
  color: var(--color-hairline);
  overflow: hidden;
  white-space: nowrap;
  padding: 24px 0 40px;
}

.chat-orb {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: var(--rounded-full);
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  text-decoration: none;
}

@media (max-width: 800px) {
  .hero h1 { font-size: 36px; line-height: 40px; }
  .hero-grid, .grid, .grid-2, .footer-grid { grid-template-columns: 1fr; }
}

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }