/* ============================================
   MemDex100 Animations — animations.css
   Scroll reveal, keyframes, parallax
   ============================================ */

/* ========== Hero Load Animations (fire on page load, no scroll needed) ========== */
.hero-load-stagger > * {
  opacity: 0;
  animation: heroFadeUp 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero-load-stagger > *:nth-child(1) { animation-delay: 0.1s; }
.hero-load-stagger > *:nth-child(2) { animation-delay: 0.2s; }
.hero-load-stagger > *:nth-child(3) { animation-delay: 0.35s; }
.hero-load-stagger > *:nth-child(4) { animation-delay: 0.5s; }

.hero-load-image {
  opacity: 0;
  animation: heroScaleIn 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.25s forwards;
}

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

@keyframes heroScaleIn {
  from { opacity: 0; transform: scale(0.92) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ========== Scroll Reveal Base ========== */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Scale-in variant */
.reveal-scale {
  opacity: 0;
  transform: scale(0.9) translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Blur-in variant — starts blurred and fades in sharp */
.reveal-blur {
  opacity: 0;
  filter: blur(12px);
  transform: translateY(20px);
  transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94), filter 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-blur.visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

/* ========== Staggered Children ========== */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.12s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.19s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.26s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.33s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.40s; }
.reveal-stagger.visible > *:nth-child(7) { transition-delay: 0.47s; }
.reveal-stagger.visible > *:nth-child(8) { transition-delay: 0.54s; }

.reveal-stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ========== Mobile: reduce reveal distances ========== */
@media (max-width: 768px) {
  .reveal {
    transform: translateY(35px);
  }

  .reveal-left {
    transform: translateX(-30px);
  }

  .reveal-right {
    transform: translateX(30px);
  }

  .reveal-scale {
    transform: scale(0.92) translateY(20px);
  }

  .reveal-stagger > * {
    transform: translateY(25px);
  }

  .reveal-blur {
    filter: blur(8px);
    transform: translateY(15px);
  }
}

/* ========== Keyframe Animations ========== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-50px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px var(--color-accent-glow); }
  50% { box-shadow: 0 0 20px var(--color-accent-glow), 0 0 40px var(--color-accent-glow); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.05); opacity: 1; }
}

@keyframes borderGlow {
  0%, 100% { border-color: var(--color-border); }
  50% { border-color: var(--color-border-hover); }
}

/* ========== Animation Utility Classes ========== */
.anim-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.anim-fade-up {
  animation: fadeUp 0.6s ease forwards;
}

.anim-float {
  animation: float 3s ease-in-out infinite;
}

.anim-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.anim-glow {
  animation: glow 2s ease-in-out infinite;
}

.anim-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 41, 254, 0.12) 25%,
    rgba(32, 158, 224, 0.08) 50%,
    rgba(0, 41, 254, 0.12) 75%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

.anim-spin {
  animation: spin 1s linear infinite;
}

.anim-breathe {
  animation: breathe 4s ease-in-out infinite;
}

/* Animation delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* ========== Glow Border Card ========== */
.glow-border-card {
  border: 1px solid rgba(32, 158, 224, 0.2);
}

.glow-border-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(90, 200, 232, 0.7), rgba(32, 158, 224, 0.5), transparent);
  animation: glowScan 6s ease-in-out infinite;
  pointer-events: none;
  z-index: 2;
}

.glow-border-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: -80%;
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(32, 158, 224, 0.5), rgba(90, 200, 232, 0.7), transparent);
  animation: glowScanReverse 6s ease-in-out 3s infinite;
  pointer-events: none;
  z-index: 2;
}

@keyframes glowScan {
  0% { left: -60%; }
  100% { left: 100%; }
}

@keyframes glowScanReverse {
  0% { right: -60%; }
  100% { right: 100%; }
}

/* ========== Parallax ========== */
.parallax-container {
  overflow: hidden;
  position: relative;
}

.parallax-bg {
  position: absolute;
  top: -20%;
  left: 0;
  width: 100%;
  height: 140%;
  object-fit: cover;
  will-change: transform;
}

/* ========== Loading / Skeleton ========== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-card) 25%,
    var(--color-bg-card-hover) 50%,
    var(--color-bg-card) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-sm);
  border-radius: var(--radius-sm);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-sm);
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 16 / 9;
}

/* ========== Reduce Motion ========== */
@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;
  }

  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-scale,
  .reveal-blur,
  .reveal-stagger > * {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .parallax-bg {
    transform: none !important;
  }
}