/* ============================================================
   Sam Yugos — Base styles (atoms level, Atomic Design — Frost)
   Typography rules: Butterick's Practical Typography
   (line length 45–90ch, body 15–25px, leading 120–145%)
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-heading);
  text-wrap: balance;
}

h1 { font-size: clamp(var(--fs-2xl), 5.5vw, var(--fs-3xl)); }
h2 { font-size: clamp(var(--fs-xl), 4vw, var(--fs-2xl)); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p { max-width: var(--measure); }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
a:hover { color: var(--accent-strong); }

/* Visible focus for keyboard users (WCAG 2.4.7) */
:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}

.section { padding-block: var(--sp-7); }
.section--alt { background: var(--surface-alt); }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-2);
}

.lead { font-size: var(--fs-md); color: var(--text-muted); }

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

.skip-link {
  position: absolute; left: var(--sp-3); top: -100px;
  background: var(--cta-bg); color: var(--cta-text);
  padding: var(--sp-2) var(--sp-3); border-radius: var(--radius);
  z-index: 100; transition: top 0.15s;
}
.skip-link:focus { top: var(--sp-2); }