/* ==========================================================
   Base — reset, typography, layout helpers
   ========================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

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

img, svg, video { display: block; max-width: 100%; height: auto; }

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

ul { list-style: none; padding: 0; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 700;
}

::selection { background: var(--color-accent); color: var(--color-accent-ink); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--space-xl); }

.section-head { margin-bottom: var(--space-lg); }

.section-title { font-size: var(--fs-h2); }

.eyebrow {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

.highlight { color: var(--color-accent); }

.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 {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-radius: 8px;
}
.skip-link:focus { top: 1rem; }

/* ---------- Scroll reveal (activated by main.js) ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

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