body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  color: var(--color-charcoal);
  background-color: var(--color-primary);
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.container--narrow { max-width: var(--max-width-narrow); }
.container--wide { max-width: var(--max-width-wide); }

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--fw-bold);
  color: var(--color-white);
}

h1 {
  font-size: var(--fs-5xl);
  letter-spacing: -0.03em;
  line-height: var(--lh-tight);
}

h2 {
  font-size: var(--fs-4xl);
  letter-spacing: -0.02em;
  line-height: var(--lh-snug);
}

h3 { font-size: var(--fs-xl); letter-spacing: -0.01em; }
h4 { font-size: var(--fs-lg); }

p {
  color: var(--color-light-gray);
  line-height: var(--lh-normal);
}

.text-sm { font-size: var(--fs-sm); }
.text-md { font-size: var(--fs-md); }
.text-lg { font-size: var(--fs-lg); }
.text-muted { color: var(--color-gray); }
.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 50%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Section Spacing ── */
.section {
  padding-block: var(--space-6xl);
  position: relative;
}

.section--alt {
  background-color: var(--color-surface);
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-lg);
  padding: 0.35rem 0.75rem;
  background: var(--color-accent-dim);
  border: 1px solid rgba(240, 160, 48, 0.2);
  border-radius: var(--radius-full);
}

.section__label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.section__title { margin-bottom: var(--space-lg); }

.section__subtitle {
  font-size: var(--fs-lg);
  color: var(--color-light-gray);
  max-width: 600px;
  margin-bottom: var(--space-3xl);
}

.section__subtitle--centered {
  margin-inline: auto;
  text-align: center;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.85rem 2rem;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  line-height: 1;
  letter-spacing: 0.02em;
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-default);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #d4911a 100%);
  color: var(--color-black);
  box-shadow: 0 4px 20px rgba(240, 160, 48, 0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(240, 160, 48, 0.35);
}

.btn--secondary {
  background-color: var(--color-surface-elevated);
  color: var(--color-white);
  border: var(--border);
}

.btn--secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn--outline:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background-color: rgba(255, 255, 255, 0.04);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-accent);
  padding: 0.5rem 0;
}

.btn--ghost:hover { color: var(--color-accent-light); }

.btn--lg {
  padding: 1.1rem 2.5rem;
  font-size: var(--fs-base);
  border-radius: var(--radius-xl);
}

.btn--sm { padding: 0.55rem 1.25rem; font-size: var(--fs-xs); }
.btn--full { width: 100%; }

/* ── Cards ── */
.card {
  background-color: var(--color-surface-light);
  border: var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-default);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

/* ── Grid / Flex Helpers ── */
.grid { display: grid; gap: var(--space-xl); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex--center { align-items: center; justify-content: center; }
.flex--between { align-items: center; justify-content: space-between; }
.flex--col { flex-direction: column; }
.flex--gap-sm { gap: var(--space-sm); }
.flex--gap-md { gap: var(--space-md); }
.flex--gap-lg { gap: var(--space-lg); }

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

/* ── Scroll Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ── Decorative ── */
.noise::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

.grid-bg {
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 60px 60px;
}

.glow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(240,160,48,0.4), transparent);
  border: none;
}