/* ===== Keyframes ===== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes subtlePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(66, 112, 236, 0); }
  50% { box-shadow: 0 0 0 6px rgba(66, 112, 236, 0.08); }
}

/* ===== Page Load Animations ===== */
.ani-fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.ani-fade-in {
  animation: fadeIn 0.5s ease both;
}

.ani-scale-in {
  animation: scaleIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.ani-slide-left {
  animation: slideInLeft 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.ani-slide-right {
  animation: slideInRight 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ===== Detail Page - Page Load Animations ===== */
.anim-fade-in-up {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.anim-fade-in {
  opacity: 0;
  animation: fadeIn 0.5s ease-out forwards;
}

.anim-slide-in-right {
  opacity: 0;
  animation: slideInRight 0.6s ease-out forwards;
}

/* ===== Animation Delays (Stagger) ===== */
.ani-delay-100 { animation-delay: 0.1s; }
.ani-delay-200 { animation-delay: 0.2s; }
.ani-delay-300 { animation-delay: 0.3s; }
.ani-delay-400 { animation-delay: 0.4s; }
.ani-delay-500 { animation-delay: 0.5s; }
.ani-delay-600 { animation-delay: 0.6s; }

/* Detail page stagger delays */
.anim-delay-1 { animation-delay: 0.08s; }
.anim-delay-2 { animation-delay: 0.18s; }
.anim-delay-3 { animation-delay: 0.28s; }
.anim-delay-4 { animation-delay: 0.40s; }
.anim-delay-5 { animation-delay: 0.52s; }
.anim-delay-6 { animation-delay: 0.64s; }
.anim-delay-7 { animation-delay: 0.76s; }
.anim-delay-8 { animation-delay: 0.88s; }

/* ===== Scroll-triggered Animations ===== */
.ani-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.ani-on-scroll.ani-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Scroll Reveal (IntersectionObserver) ===== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.scroll-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.scroll-reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger for scroll reveal children */
.scroll-reveal.stagger-1 { transition-delay: 0.06s; }
.scroll-reveal.stagger-2 { transition-delay: 0.12s; }
.scroll-reveal.stagger-3 { transition-delay: 0.18s; }
.scroll-reveal.stagger-4 { transition-delay: 0.24s; }

.scroll-reveal-right.stagger-1 { transition-delay: 0.1s; }
.scroll-reveal-right.stagger-2 { transition-delay: 0.2s; }

/* ===== Micro-interactions ===== */
.ani-hover-lift {
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
}
.ani-hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.08);
}

.ani-press:active {
  transform: scale(0.97);
  transition: transform 0.1s ease;
}

/* ===== Card & Section Transitions ===== */
.ani-card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease;
}
.ani-card.ani-visible {
  opacity: 1;
  transform: translateY(0);
}
.ani-card:hover {
  box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.08);
}

/* Stagger delay for grid children */
.ani-card:nth-child(1) { transition-delay: 0s; }
.ani-card:nth-child(2) { transition-delay: 0.1s; }
.ani-card:nth-child(3) { transition-delay: 0.2s; }
.ani-card:nth-child(4) { transition-delay: 0.3s; }
.ani-card:nth-child(5) { transition-delay: 0.4s; }
.ani-card:nth-child(6) { transition-delay: 0.5s; }

/* ===== Stat Number Count-up animation ===== */
.ani-stat {
  animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ===== Modal / Dropdown Animations ===== */
.ani-dropdown-enter {
  animation: scaleIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) both;
  transform-origin: top right;
}

.ani-modal-enter {
  animation: scaleIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ===== Button hover glow ===== */
.ani-btn-glow {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.ani-btn-glow:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(66, 112, 236, 0.3);
}

/* ===== Detail Page - Section Box ===== */
.section-box {
  transition: none;
}

/* ===== Detail Page - Sidebar Card ===== */
.sidebar-card {
  transition: none;
}

/* ===== Detail Page - Back Button Hover ===== */
.btn-back {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn-back:hover {
  transform: scale(1.04);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

/* ===== Detail Page - Badge Entrance ===== */
.badge-anim {
  opacity: 0;
  animation: fadeInUp 0.4s ease-out forwards;
}

/* ===== Detail Page - Section Heading ===== */

/* ===== Accessibility: Reduce Motion ===== */
@media (prefers-reduced-motion: reduce) {
  .ani-fade-in-up,
  .ani-fade-in,
  .ani-scale-in,
  .ani-slide-left,
  .ani-slide-right,
  .anim-fade-in-up,
  .anim-fade-in,
  .anim-slide-in-right,
  .badge-anim,
  .ani-stat {
    animation: none;
    opacity: 1;
  }

  .ani-on-scroll,
  .ani-card,
  .scroll-reveal,
  .scroll-reveal-right {
    transition: none;
    opacity: 1;
    transform: none;
  }

  .ani-hover-lift,
  .section-box,
  .sidebar-card,
  .btn-back,
  .ani-btn-glow {
    transition: none;
  }
}