*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--nav-height);
}

.section, .hero-section, .live-stats-section {
  scroll-snap-align: start;
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--duration-150); }
a:hover { color: var(--color-primary); }

img { max-width: 100%; height: auto; }

h1 {
  font-size: var(--font-size-hero);
  font-weight: 800;
  line-height: var(--line-height-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-16);
}
h1 .hl { color: var(--color-primary); }

h2 {
  font-size: var(--font-size-section);
  font-weight: 700;
  letter-spacing: var(--tracking-snug);
  margin-bottom: var(--space-24);
}
h2 .hl { color: var(--color-primary); }

h3 {
  font-size: var(--font-size-subsection);
  font-weight: 600;
  margin-bottom: var(--space-12);
}

/* Small label-style heading (14px, uppercase, muted). Use for sub-groupings
   within a card/section where a full h3 (18px) is too prominent, or as a
   kicker above an h2. NOT for readable heading text like FAQ questions. */
.overline {
  font-size: var(--font-size-ui);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

h4 {
  font-size: var(--font-size-body);
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  margin-bottom: var(--space-8);
}

p, .subtitle {
  font-size: var(--font-size-body);
  font-weight: 400;
  line-height: var(--line-height-loose);
  color: var(--color-text-muted);
  max-width: var(--prose-width);
  margin-bottom: var(--space-16);
}

.container {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--space-16);
}

.section {
  padding: var(--space-48) 0;
  border-bottom: var(--border-thin);
}

.section:last-child { border-bottom: none; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-24);
  margin-top: var(--space-16);
}
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-20);
  margin-top: var(--space-16);
}

@media (width >= 37.5rem) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (width >= 48rem) {
  .container { padding: 0 var(--space-32); }
  .section { padding: var(--space-64) 0; }
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr 1fr; }
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-6);
  background: var(--color-surface);
  color: var(--color-accent);
}

strong { color: var(--color-text); }

::selection {
  background: color-mix(in srgb, var(--color-primary) 30%, transparent);
  color: var(--color-text);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}