/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.55;
  overflow-x: hidden;
  padding-bottom: 72px;
  position: relative;
  transition: background-color var(--transition-base), color var(--transition-base);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--ambient-glow);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

main {
  display: block;
}

section[id] {
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 9999;
}
.skip-link:focus { top: var(--space-4); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}