/* ═══════════════════════════════════════════════
   OUR STORY — Animations & Photo Filters
   ═══════════════════════════════════════════════ */

/* ── Photo Filters ── */
.filter-original {
  filter: none;
}

.filter-vintage {
  filter: sepia(0.35) contrast(1.05) saturate(0.8) brightness(0.95);
}

.filter-film {
  filter: contrast(1.1) saturate(0.85) brightness(0.95) hue-rotate(-5deg);
}

.filter-dreamy {
  filter: brightness(1.08) saturate(1.15) contrast(0.88) blur(0.3px);
}

.filter-bw {
  filter: grayscale(1) contrast(1.1) brightness(1.05);
}

.filter-warm {
  filter: sepia(0.15) saturate(1.3) brightness(1.05) hue-rotate(-10deg);
}

.filter-pink {
  filter: saturate(1.2) hue-rotate(330deg) brightness(1.05) contrast(0.95);
}

.filter-midnight {
  filter: brightness(0.85) saturate(0.7) contrast(1.2) hue-rotate(200deg);
}

/* ── Grain Overlay for Photos ── */
.photo-grain::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
  pointer-events: none;
  mix-blend-mode: overlay;
  opacity: 0.6;
}

/* ── Entrance Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(60px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes blurIn {
  from {
    opacity: 0;
    filter: blur(20px);
  }
  to {
    opacity: 1;
    filter: blur(0);
  }
}

/* ── Continuous Animations ── */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}

@keyframes floatSlow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-10px) rotate(2deg); }
  66% { transform: translateY(5px) rotate(-1deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes heartbeat {
  0% { transform: scale(1); }
  14% { transform: scale(1.15); }
  28% { transform: scale(1); }
  42% { transform: scale(1.15); }
  70% { transform: scale(1); }
  100% { transform: scale(1); }
}

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

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

@keyframes sparkle {
  0%, 100% { opacity: 0; transform: scale(0) rotate(0deg); }
  50% { opacity: 1; transform: scale(1) rotate(180deg); }
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

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

/* ── Particle Animations ── */
@keyframes particleFloat {
  0% {
    transform: translateY(100vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% {
    transform: translateY(-10vh) translateX(50px) rotate(360deg);
    opacity: 0;
  }
}

@keyframes particleFloat2 {
  0% {
    transform: translateY(100vh) translateX(0) scale(0.5);
    opacity: 0;
  }
  10% { opacity: 0.8; }
  90% { opacity: 0.8; }
  100% {
    transform: translateY(-10vh) translateX(-40px) scale(1);
    opacity: 0;
  }
}

/* ── Card Animations ── */
@keyframes cardReveal {
  from {
    opacity: 0;
    transform: translateY(60px) rotateX(10deg);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0deg);
  }
}

@keyframes cardFlip {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(180deg); }
}

@keyframes cardFlipBack {
  0% { transform: rotateY(180deg); }
  100% { transform: rotateY(360deg); }
}

/* ── Modal Animations ── */
@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes modalOut {
  from {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
  to {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
}

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

/* ── Surprise Me Animations ── */
@keyframes searchPulse {
  0% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1); opacity: 0.5; }
}

@keyframes heartDrop {
  0% { 
    transform: translateY(-50px) scale(0);
    opacity: 0;
  }
  60% { 
    transform: translateY(10px) scale(1.2);
    opacity: 1;
  }
  100% { 
    transform: translateY(0) scale(1);
    opacity: 1;
  }
}

/* ── Scroll Reveal Classes ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--duration-slow) var(--ease-expo),
              transform var(--duration-slow) var(--ease-expo);
}

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

.reveal--left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity var(--duration-slow) var(--ease-expo),
              transform var(--duration-slow) var(--ease-expo);
}

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

.reveal--right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity var(--duration-slow) var(--ease-expo),
              transform var(--duration-slow) var(--ease-expo);
}

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

.reveal--scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity var(--duration-slow) var(--ease-expo),
              transform var(--duration-slow) var(--ease-expo);
}

.reveal--scale.revealed {
  opacity: 1;
  transform: scale(1);
}

.reveal--blur {
  opacity: 0;
  filter: blur(15px);
  transition: opacity var(--duration-slow) var(--ease-expo),
              filter var(--duration-slow) var(--ease-expo);
}

.reveal--blur.revealed {
  opacity: 1;
  filter: blur(0);
}

/* Staggered delays for children */
.stagger > *:nth-child(1) { transition-delay: 0s; }
.stagger > *:nth-child(2) { transition-delay: 0.1s; }
.stagger > *:nth-child(3) { transition-delay: 0.2s; }
.stagger > *:nth-child(4) { transition-delay: 0.3s; }
.stagger > *:nth-child(5) { transition-delay: 0.4s; }
.stagger > *:nth-child(6) { transition-delay: 0.5s; }
.stagger > *:nth-child(7) { transition-delay: 0.6s; }
.stagger > *:nth-child(8) { transition-delay: 0.7s; }
.stagger > *:nth-child(9) { transition-delay: 0.8s; }
.stagger > *:nth-child(10) { transition-delay: 0.9s; }

/* ── Hover Micro-Animations ── */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-smooth),
              box-shadow var(--duration-normal) var(--ease-smooth);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.hover-glow {
  transition: box-shadow var(--duration-normal) var(--ease-smooth);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

.hover-scale {
  transition: transform var(--duration-fast) var(--ease-smooth);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* ── Magnetic Button Effect ── */
.btn-magnetic {
  position: relative;
  transition: transform var(--duration-fast) var(--ease-smooth);
}

/* ── Line Animation ── */
.line-grow {
  width: 0;
  height: 1px;
  background: var(--primary-pink);
  transition: width var(--duration-slow) var(--ease-expo);
}

.line-grow.active {
  width: 60px;
}

/* ── Text Reveal ── */
.text-reveal {
  overflow: hidden;
  display: inline-block;
}

.text-reveal span {
  display: inline-block;
  transform: translateY(100%);
  transition: transform var(--duration-slow) var(--ease-expo);
}

.text-reveal.active span {
  transform: translateY(0);
}