/* ============================================
   Keyframes & Scroll-Reveal Classes
   ============================================ */

/* --- Keyframe Definitions --- */

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(214, 77, 129, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(214, 77, 129, 0.6), 0 0 60px rgba(214, 77, 129, 0.2);
  }
}

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

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

@keyframes bounceDown {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(12px);
  }
}

@keyframes expandWidth {
  from {
    width: 0;
  }
  to {
    width: 120px;
  }
}

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

@keyframes blink {
  0%, 100% { border-color: var(--pink); }
  50% { border-color: transparent; }
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pinkLineExpand {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes dotPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(214, 77, 129, 0.4);
  }
  50% {
    transform: scale(1.2);
    box-shadow: 0 0 0 10px rgba(214, 77, 129, 0);
  }
}

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

/* --- Scroll Reveal Base --- */

.reveal {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
  will-change: opacity, transform;
}

.reveal--up {
  transform: translateY(40px);
}

.reveal--left {
  transform: translateX(-40px);
}

.reveal--right {
  transform: translateX(40px);
}

.reveal--scale {
  transform: scale(0.85);
}

/* Revealed State */
.reveal.revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* Stagger Delays */
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }
.reveal--delay-5 { transition-delay: 0.5s; }

/* --- Utility Animation Classes --- */

.animate-pulse-glow {
  animation: pulseGlow 2.5s ease-in-out infinite;
}

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

.animate-bounce-down {
  animation: bounceDown 2s ease-in-out infinite;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(214, 77, 129, 0.15) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

.animate-dot-pulse {
  animation: dotPulse 2s ease-in-out infinite;
}

/* Pink horizontal rule with expand animation */
.pink-rule {
  width: 120px;
  height: 3px;
  background: var(--gradient-pink);
  border: none;
  border-radius: var(--radius-full);
  margin: var(--space-sm) auto;
  transform-origin: center;
}

.pink-rule.revealed {
  animation: pinkLineExpand 0.8s var(--ease-out-expo) forwards;
}

/* ============================================
   ENHANCED ANIMATIONS
   ============================================ */

/* --- 1. Scroll Progress Bar (Ribbon Style) --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--pink),
    var(--maroon),
    var(--pink),
    rgba(255, 180, 210, 0.9),
    var(--pink),
    var(--maroon),
    var(--pink)
  );
  background-size: 300% 100%;
  animation: ribbonProgressShimmer 3s linear infinite;
  z-index: 1100;
  width: 0%;
  transition: width 0.05s linear;
  box-shadow: 0 0 12px rgba(214, 77, 129, 0.6), 0 0 4px rgba(214, 77, 129, 0.8);
}

.scroll-progress::after {
  content: '';
  position: absolute;
  right: -5px;
  top: -3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 12px var(--pink), 0 0 24px rgba(214, 77, 129, 0.4);
}

@keyframes ribbonProgressShimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 300% 50%; }
}

/* --- 2. Text Gradient Shimmer --- */
@keyframes textShimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.text-shimmer {
  background: linear-gradient(
    90deg,
    var(--white) 0%,
    var(--pink) 25%,
    var(--white) 50%,
    var(--pink) 75%,
    var(--white) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textShimmer 4s linear infinite;
}

/* --- 3. Animated Background Gradient --- */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.section--animated-bg {
  background: linear-gradient(
    135deg,
    rgb(22, 22, 22) 0%,
    rgb(30, 20, 28) 25%,
    rgb(22, 22, 22) 50%,
    rgb(28, 18, 30) 75%,
    rgb(22, 22, 22) 100%
  );
  background-size: 400% 400%;
  animation: gradientShift 12s ease-in-out infinite;
}

/* --- 4. Image Reveal Wipe --- */
.reveal-wipe {
  position: relative;
  overflow: hidden;
}

.reveal-wipe::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-pink);
  transform: translateX(0);
  z-index: 2;
  transition: transform 0.8s var(--ease-out-expo);
}

.reveal-wipe.revealed::after {
  transform: translateX(101%);
}

/* --- 5. 3D Card Tilt --- */
.card-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.card-3d .card__body {
  transform: translateZ(20px);
}

.card-3d .card__badge {
  transform: translateZ(40px);
}

/* Light reflection overlay for 3D cards */
.card-3d::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(214, 77, 129, 0.12) 0%,
    transparent 60%
  );
  z-index: 3;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--duration-base) ease;
  border-radius: inherit;
}

.card-3d:hover::before {
  opacity: 1;
}

/* --- 6. Magnetic Cursor Effect --- */
.magnetic {
  transition: transform var(--duration-base) var(--ease-out-expo);
}

/* --- 7. Staggered Nav Letter Hover --- */
.nav__link .letter {
  display: inline-block;
  transition: transform 0.3s var(--ease-out-back), color 0.3s ease;
}

.nav__link:hover .letter {
  color: var(--pink);
}

/* --- 8. Pink Ribbon SVG Draw --- */
@keyframes ribbonDraw {
  to {
    stroke-dashoffset: 0;
  }
}

.ribbon-svg {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  opacity: 0.6;
}

.ribbon-svg path {
  fill: none;
  stroke: var(--pink);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 500;
  stroke-dashoffset: 500;
  animation: ribbonDraw 3s var(--ease-out-expo) 1s forwards;
}

/* --- 9. Slot Machine Counter --- */
.slot-counter {
  display: inline-flex;
  overflow: hidden;
  height: 1em;
  line-height: 1;
}

.slot-counter__digit {
  display: inline-block;
  animation: slotSpin 0.6s var(--ease-out-expo) forwards;
  opacity: 0;
}

@keyframes slotSpin {
  0% {
    transform: translateY(-100%);
    opacity: 0;
  }
  60% {
    transform: translateY(8%);
    opacity: 1;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

/* --- 10. Enhanced Particle Ribbon Shapes (handled in JS) --- */

/* --- Bonus: Button ripple effect --- */
.btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.25) 0%, transparent 60%);
  transform: scale(0);
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.5s ease;
  border-radius: inherit;
}

.btn:active::after {
  transform: scale(2.5);
  opacity: 1;
  transition: 0s;
}