/* ============================================
   SteadyPub Animations — CSS-only
   Dark Aesthetic + Micro-interactions
   ============================================ */

/* ---- Page Load Fade-In ---- */
@keyframes fadeInPage {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Smooth Scroll ---- */
html {
  scroll-behavior: smooth;
}

/* ---- Hero Pulse (3D orbs) ---- */
@keyframes heroPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ---- Card enter animation (via AOS compatibility) ---- */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* AOS fade directions */
[data-aos="fade-right"] {
  transform: translateX(-20px);
}

[data-aos="fade-right"].aos-animate {
  transform: translateX(0);
}

/* ---- Loading shimmer for images ---- */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.article-card-image:not([src]),
.article-card-image[src=""] {
  animation: shimmer 2s ease-in-out infinite;
  background: linear-gradient(90deg, var(--sp-bg-card, #14141f) 25%, var(--sp-bg-hover, #1a1a2e) 50%, var(--sp-bg-card, #14141f) 75%);
  background-size: 200% 100%;
}

.article-card-image[src] {
  animation: none;
}

/* ---- Card hover subtle lift ---- */
.article-card {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

/* ---- Button hover animations ---- */
.hero-cta svg,
.btn-primary svg {
  transition: transform 0.2s ease;
}

.hero-cta:hover svg,
.btn-primary:hover svg {
  transform: translateX(4px);
}

/* ---- Tag hover ---- */
.sidebar-widget a[href*="/tag/"],
.tag-pill,
.article-card-tag {
  transition: all 0.2s ease;
}

/* ---- Neighbors navigation ---- */
main .neighbors {
  margin: 4% 0;
  height: 20px;
  display: flex;
  justify-content: space-between;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

main .neighbors a {
  color: var(--sp-accent-cyan, #00d4ff);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

main .neighbors a:hover {
  color: #06b6d4;
}

/* ---- Related Posts / Social Share ---- */
div.related-posts,
.center.social-share {
  max-width: 720px;
  margin: 32px auto;
  padding: 24px;
  background: var(--sp-bg-card, #14141f);
  border: 1px solid var(--sp-border-subtle, rgba(255,255,255,0.06));
  border-radius: 12px;
}

.center.social-share {
  text-align: center;
}

div.related-posts h4,
.center.social-share p {
  color: var(--sp-text-secondary, #9494a8);
}

div.related-posts ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

div.related-posts ul li {
  padding: 6px 0;
}

div.related-posts ul li a {
  color: var(--sp-text-primary, #e8e8f0);
  text-decoration: none;
  transition: color 0.2s ease;
}

div.related-posts ul li a:hover {
  color: var(--sp-accent-cyan, #00d4ff);
}

/* ---- Dark Theme Tag Cloud ---- */
.dark-theme .tag-cloud a {
  background: rgba(0, 212, 255, 0.12);
}

.dark-theme .tag-cloud a:hover {
  background: rgba(0, 212, 255, 0.25);
}

/* ---- prefers-reduced-motion: disable all non-essential animations ---- */
@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;
  }

  html {
    scroll-behavior: auto;
  }

  [data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  [data-aos].aos-animate {
    opacity: 1 !important;
    transform: none !important;
  }

  .article-card {
    transition: none !important;
  }

  .hero-cta svg,
  .btn-primary svg {
    transition: none !important;
  }
}