* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-secondary);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
}

/* Screen reader-only content (kept accessible to assistive tech) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  left: var(--spacing-sm);
  top: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-dark);
  color: var(--white);
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
  z-index: 9999;
}

.skip-link:focus {
  transform: translateY(0);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-primary);
  color: var(--text-primary);
  margin: 0 0 var(--spacing-md) 0;
}

h1 {
  font-size: 64px;
  font-weight: 700;
  letter-spacing: 0.15em;
  line-height: 1.1;
}

h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.2;
}

h3 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.3;
}

h4 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.3;
}

p {
  margin: 0 0 var(--spacing-md) 0;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input,
textarea {
  font-family: inherit;
}

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