/* --------------------------------------------------------------------------
   global.css — Site-wide layout and base element behavior
   -------------------------------------------------------------------------- */

body {
  background-color: var(--color-background);
  color: var(--color-text);
  overflow-x: clip;
}

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

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: calc(var(--z-modal) + 1);
  padding: var(--space-2) var(--space-3);
  background: var(--color-accent);
  color: var(--color-dark);
  font-weight: var(--font-weight-bold);
  transform: translateY(-200%);
  transition: transform var(--duration-2) var(--ease-standard);
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline-offset: 2px;
}

.container {
  width: min(100% - (var(--container-pad) * 2), var(--container-max));
  margin-inline: auto;
}

.container--content {
  width: min(100% - (var(--container-pad) * 2), var(--container-content));
}

.container--narrow {
  width: min(100% - (var(--container-pad) * 2), var(--container-narrow));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-background);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  height: 100%;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.site-logo__img {
  width: auto;
  height: var(--space-4);
  max-width: min(55vw, 13rem);
}

@media (min-width: 48rem) {
  .site-logo__img {
    height: var(--space-5);
  }
}

.site-logo:hover .site-logo__img,
.site-logo:focus-visible .site-logo__img {
  opacity: 0.85;
}

.site-main {
  display: block;
}

.section {
  padding-block: var(--section-pad-y);
  scroll-margin-top: var(--header-height);
}

.section__header {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  max-width: 55ch;
}

.section__intro {
  color: var(--color-text-muted);
  max-width: 42ch;
}

a:hover {
  color: var(--color-accent);
}

/* Placeholder media blocks until real assets arrive */
.media-placeholder {
  aspect-ratio: 1.618 / 1; /* golden ratio */
  width: 100%;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--color-blue) 35%, transparent) 0%,
      transparent 50%
    ),
    var(--color-surface);
  border: 1px solid var(--color-border);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}