*, *::before, *::after { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--background);
  color: var(--body);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  overflow-x: hidden;
  position: relative;
}

a { color: inherit; }

/* Soft yellow glow behind the hero */
.glow {
  position: absolute;
  inset: -20vh -20vw auto auto;
  width: 70vw;
  height: 70vw;
  max-width: 900px;
  max-height: 900px;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
  pointer-events: none;
  z-index: 0;
}

.nav, .hero, .footer {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  padding-left: clamp(1rem, 4vw, 3rem);
  padding-right: clamp(1rem, 4vw, 3rem);
}

/* Nav */
.nav { padding-top: 1.5rem; padding-bottom: 1.5rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.875rem;
  color: var(--heading);
  text-decoration: none;
}
.brand-logo { height: 1.375rem; width: auto; display: block; }
.brand-divider { width: 1px; height: 1.25rem; background: var(--border); }
.brand-name {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}

/* Hero */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(3rem, 10vh, 7rem);
  padding-bottom: clamp(3rem, 10vh, 7rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  align-self: flex-start;
  margin: 0 0 1.75rem;
  padding: 0.375rem 0.875rem;
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-large);
  background: var(--accent-10);
  color: var(--accent);
  font-family: var(--font-code);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }

h1 {
  margin: 0;
  max-width: 16ch;
  color: var(--heading);
  font-family: var(--font-heading);
  font-weight: var(--heading-weight);
  line-height: var(--heading-line-height);
  letter-spacing: -0.03em;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  text-wrap: balance;
}
.accent { color: var(--accent); }

.lede {
  margin: 1.75rem 0 0;
  max-width: 38rem;
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  color: var(--body);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
}

/* Mirrors union.ai .button */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  border: var(--border-width) solid var(--accent);
  border-radius: var(--radius-large);
  background: var(--accent);
  color: var(--black);
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}
.button:hover { background: color-mix(in srgb, var(--accent) 85%, var(--white)); }
.button.is-secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--heading);
}
.button.is-secondary:hover { border-color: var(--heading); }
.button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.topics {
  list-style: none;
  margin: clamp(3rem, 8vh, 5rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: var(--border-width) solid var(--border);
}
.topics li {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem 1.25rem 0 0;
  color: var(--heading);
  font-weight: 500;
}
.topics code {
  font-family: var(--font-code);
  font-size: 0.8125rem;
  color: var(--brand-gray-350);
}

@media (max-width: 640px) {
  .topics { grid-template-columns: 1fr; }
  .topics li {
    flex-direction: row;
    align-items: baseline;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: var(--border-width) solid var(--border);
  }
}

/* Footer */
.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  border-top: var(--border-width) solid var(--border);
  font-size: 0.875rem;
  color: var(--brand-gray-350);
}
.footer a { text-decoration: none; }
.footer a:hover { color: var(--heading); }