body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-size: 15px;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

.font-mono {
  font-family: var(--font-mono);
}

.text-primary {
  color: var(--primary);
}

.text-accent {
  color: var(--accent);
}

.text-muted {
  color: var(--text-muted);
}

.text-left {
  text-align: left;
}

.text-center {
  text-align: center;
}

/* Section Containers */
.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  position: relative;
}

.section-dark {
  background-color: var(--bg-dark);
}

.section-surface {
  background-color: var(--surface-dark);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem auto;
}

.section-header-flex {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Grids */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.w-full { width: 100%; }

/* Accessible Focus States */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Icons */
.icon-xs { width: 14px; height: 14px; }
.icon-sm { width: 18px; height: 18px; }
.icon-md { width: 22px; height: 22px; }
.icon-lg { width: 28px; height: 28px; }

/* Inline Code Element */
.inline-code {
  font-family: var(--font-mono);
  background-color: var(--surface-hover);
  border: 1px solid var(--border-color);
  color: var(--accent);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.85em;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}