:root {
  --brand-primary: #000000;
  --brand-secondary: #f59e0b;
  --brand-accent: #dc2626;
  --brand-pop: #000000;
  --on-brand: #ffffff;

  --bg-base: #fafaf9;
  --bg-subtle: #f5f5f4;
  --bg-elevated: #ffffff;
  --bg-inverse: #1c1917;

  --text-primary: #0f172a;
  --text-muted: #475569;
  --text-inverse: #f8fafc;

  --weight-display: 500;
  --weight-heading: 500;
  --weight-body: 400;
  --tracking-tight: -0.03em;
  --tracking-wide: 0.1em;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 1px 0 rgba(0,0,0,0.02);
  --shadow-card-hover: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px -8px rgba(0,0,0,0.1);
  --shadow-cta: none;

  --entrance-ms: 800ms;
  --entrance-ease: cubic-bezier(0.22,1,0.36,1);
  --hover-ms: 300ms;

  --font-display: 'Open Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Open Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

html { font-family: var(--font-body); color: var(--text-primary); background: var(--bg-base); }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; font-weight: var(--weight-body); line-height: 1.5; }
main { flex: 1; }
*, *::before, *::after { box-sizing: border-box; }
h1, h2, h3, h4, h5 { font-family: var(--font-display); }
img { max-width: 100%; height: auto; display: block; }
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--entrance-ms) var(--entrance-ease), transform var(--entrance-ms) var(--entrance-ease);
}
[data-reveal][data-revealed="true"] {
  opacity: 1;
  transform: translateY(0);
}
a.webgen-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-card-hover); }

/* ── Card hover polish — applies to cards in known grid containers ── */
.feature-grid-3 article,
.testimonials-grid figure,
.pricing-grid article,
.team-grid .team-card > div:first-child {
  transition: transform var(--hover-ms) ease, box-shadow var(--hover-ms) ease,
              border-color var(--hover-ms) ease;
}
.feature-grid-3 article:hover,
.testimonials-grid figure:hover,
.pricing-grid article:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: color-mix(in srgb, var(--brand-pop) 25%, transparent);
}

/* ── Nav link underline slide ── */
header nav a[href^="/"]:not(.webgen-btn),
header nav a[href^="#"]:not(.webgen-btn) {
  position: relative;
  transition: color var(--hover-ms) ease;
}
header nav a[href^="/"]:not(.webgen-btn)::after,
header nav a[href^="#"]:not(.webgen-btn)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--brand-pop);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--hover-ms) cubic-bezier(0.22, 1, 0.36, 1);
  border-radius: 2px;
}
header nav a[href^="/"]:not(.webgen-btn):hover::after,
header nav a[href^="#"]:not(.webgen-btn):hover::after {
  transform: scaleX(1);
}
header nav a[href^="/"]:not(.webgen-btn):hover,
header nav a[href^="#"]:not(.webgen-btn):hover {
  color: var(--text-primary);
}

/* ── Generic link transitions for inline content ── */
main a { transition: color var(--hover-ms) ease; }

/* ── FAQ accordion chevron animation (already present but ensure ease) ── */
details[open] summary .wg-faq-chev,
details summary .wg-faq-chev {
  transition: transform var(--hover-ms) cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Button micro-interaction: slight scale + shadow grow ── */
a.webgen-btn {
  transition: transform var(--hover-ms) ease, box-shadow var(--hover-ms) ease;
}
a.webgen-btn:active { transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal][data-revealed] {
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
  .feature-grid-3 article:hover,
  .testimonials-grid figure:hover,
  .pricing-grid article:hover,
  a.webgen-btn:hover {
    transform: none !important;
  }
}