/* Layout primitives: container, grid, section spacing. */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.section { padding-block: var(--space-4xl); position: relative; }
.section-alt { background: var(--color-bg-alt); }

.grid { display: grid; gap: var(--space-xl); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 48rem) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .align-center { align-items: center; }
}
@media (min-width: 64rem) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 26, 0.75);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-serif);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; color: var(--color-text); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: var(--color-bg);
  font-weight: 800;
  font-size: 0.85rem;
}

.primary-nav ul {
  display: none;
  list-style: none;
  gap: var(--space-xl);
  margin: 0;
  padding: 0;
  align-items: center;
}
.primary-nav a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: var(--step-0);
}
.primary-nav a:hover { text-decoration: none; color: var(--color-text); }

@media (min-width: 48rem) {
  .primary-nav ul { display: flex; }
  .nav-toggle { display: none; }
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text);
}
.primary-nav.is-open ul {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-md);
}

/* Hero */
.hero {
  padding-block: var(--space-5xl) var(--space-3xl);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 0%, rgba(20, 184, 166, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 10%, rgba(251, 191, 36, 0.08), transparent 60%);
  pointer-events: none;
}
.hero-inner { max-width: 56rem; position: relative; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-block: var(--space-xl);
}
.trust-bar {
  list-style: none;
  padding: 0;
  margin: var(--space-2xl) 0 0;
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
}
.trust-bar li {
  display: flex;
  flex-direction: column;
  color: var(--color-text-muted);
  font-size: var(--step--1);
}
.trust-bar strong {
  color: var(--color-text);
  font-size: var(--step-2);
  font-family: var(--font-serif);
  letter-spacing: -0.01em;
}

@media (min-width: 40rem) {
  .trust-bar { grid-template-columns: repeat(3, 1fr); }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-3xl) var(--space-xl);
  background: var(--color-bg-alt);
  margin-top: var(--space-4xl);
}
.footer-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-xl); }
@media (min-width: 48rem) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.site-footer h4 {
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: var(--space-xs); }
.site-footer a { color: var(--color-text-muted); }
.site-footer a:hover { color: var(--color-text); }
.footer-brand { font-family: var(--font-serif); font-size: var(--step-2); margin-bottom: var(--space-xs); color: var(--color-text); }
.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-dim);
  font-size: var(--step--1);
}