/* Skip link */
.skip-link {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 10;
  padding: var(--space-2) var(--space-3);
  background: var(--surface-raised);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

/* Site header */
.site-header {
  border-bottom: 1px solid var(--border-soft);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-md);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border: 1px solid var(--border-soft);
  border-radius: 50%;
  color: var(--action-accent);
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-4), 3vw, var(--space-6));
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:is(:hover, :focus-visible) {
  color: var(--action-accent);
}

.nav-links .nav-github {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill);
}

/* Theme toggle */
.theme-toggle {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border-soft);
  border-radius: 50%;
  background: none;
  color: inherit;
  cursor: pointer;
}

.theme-toggle:is(:hover, :focus-visible) {
  color: var(--action-accent);
}

.theme-toggle[aria-pressed="true"] .icon-moon,
.theme-toggle[aria-pressed="false"] .icon-sun {
  display: none;
}

/* Eyebrow label */
.eyebrow {
  margin: 0 0 var(--space-5);
  color: var(--text-accent);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* Actions */
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-5);
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--action-primary);
  border-radius: var(--radius-pill);
  background: var(--action-primary);
  color: var(--text-on-action);
  font-size: var(--text-md);
  font-weight: 700;
  text-decoration: none;
}

.button:is(:hover, :focus-visible) {
  background: var(--action-primary-hover);
}

.text-link {
  font-size: var(--text-md);
  font-weight: 700;
  text-decoration-color: var(--text-accent);
  text-underline-offset: 5px;
}

/* Card */
.card {
  position: relative;
  overflow: hidden;
  min-height: 270px;
  padding: var(--space-6);
  border-radius: var(--radius-card);
}

.card-feature {
  background: var(--surface-feature);
}

.card-github {
  background: var(--surface-warm);
}

.card-content {
  position: relative;
  z-index: 1;
  max-width: 310px;
}

.card .eyebrow {
  margin-bottom: var(--space-6);
}

.card h3 {
  margin-bottom: var(--space-3);
}

.card p:not(.eyebrow) {
  margin: 0 0 var(--space-5);
  color: var(--text-muted);
  font-size: var(--text-md);
}

.card img {
  position: absolute;
  pointer-events: none;
}

/* Site footer */
.site-footer {
  padding-block: var(--space-6);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  font-size: var(--text-sm);
}

.footer-inner p {
  margin: 0;
  color: var(--text-muted);
}

.footer-inner a {
  font-weight: 700;
  text-underline-offset: 4px;
}

@media (width <= 480px) {
  .nav {
    flex-wrap: wrap;
    min-height: 72px;
    padding-block: var(--space-3);
  }

  .nav-links {
    justify-content: space-between;
    gap: var(--space-3);
    width: 100%;
  }

  .nav-links .nav-github {
    padding: var(--space-2) var(--space-3);
  }

  .card {
    min-height: 250px;
    padding: var(--space-5);
  }

  .footer-inner {
    flex-direction: column;
    align-items: start;
  }
}