/*
  Base styles
  Reset + typographic defaults + shared layout primitives.
*/

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover, a:focus-visible { color: var(--color-primary-dark); }

h1, h2, h3, h4, p { margin: 0; }

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

/* ---------- Layout primitives ---------- */

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

.container--wide { max-width: var(--container-max-wide); }
.container--narrow { max-width: 900px; }

.section {
  padding-block: var(--space-30);
}

@media (max-width: 900px) {
  .section { padding-block: var(--space-18); }
}

.section-heading {
  max-width: 640px;
  margin-bottom: var(--space-16);
}

.eyebrow {
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
}

.eyebrow--on-dark { color: var(--color-on-dark-soft); }

.section-heading h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 500;
  color: var(--color-ink-strong);
  letter-spacing: -0.5px;
  line-height: var(--lh-snug);
  margin-bottom: var(--space-5);
}

.section-heading--on-dark h2 { color: var(--color-on-dark); }

.section-heading p {
  font-size: var(--fs-lead);
  color: var(--color-ink-soft);
  line-height: var(--lh-relaxed);
}

.section-heading--on-dark p { color: var(--color-on-dark-softer); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: background-color var(--dur-base) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  color: var(--color-on-dark);
  background: var(--color-primary);
  padding: 16px 30px;
  font-size: 15.5px;
}
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-primary-dark); color: var(--color-on-dark); }

.btn-primary--sm {
  padding: 11px 22px;
  font-size: 14px;
}

.btn-primary--lg {
  padding: 18px 36px;
  font-size: 16px;
}

.btn-text {
  color: var(--color-primary-dark);
  padding: 16px 8px;
  font-size: 15.5px;
  font-weight: 600;
}

/* ---------- Visually hidden (a11y) ---------- */

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

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}