/* ============================================================
   Base — reset, typography, utilities
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  overflow-x: hidden;
}

h1 {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}
h1 .accent { color: var(--color-accent); }

h2 {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-2);
}

h3 {
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-1);
}

h4 {
  font-family: var(--font-body);
  font-size: var(--text-h4);
  font-weight: 500;
  margin-bottom: var(--space-1);
}

p { max-width: 72ch; }

a { color: var(--color-accent); }

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

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

/* Accessibility */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-1) var(--space-2);
  border-radius: 0 0 var(--radius-sm) 0;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

/* Text utilities */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  letter-spacing: 0.14em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}

.text-muted  { color: var(--color-muted); }
.text-green  { color: var(--color-accent-2); }
.text-amber  { color: var(--color-accent-3); }
.text-center { text-align: center; }

.small { font-size: var(--text-small); }

/* Motion */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}