/* COMEAU-CT — Josh Comeau-style delightful animations and effects
 * ===================================================================================
 * Spring physics, shimmer, stagger, glow, wiggle, squash & stretch,
 * fade-in reveals, and micro-interactions that make ct feel alive.
 * =================================================================================== */

/* --- Spring Physics Keyframes --- */

@keyframes spring-bounce {
  0% {
    transform: scale(0.3);
    opacity: 0;
  }
  30% {
    transform: scale(1.1);
    opacity: 1;
  }
  50% {
    transform: scale(0.92);
  }
  70% {
    transform: scale(1.04);
  }
  85% {
    transform: scale(0.98);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes spring-bounce-up {
  0% {
    transform: translateY(30px) scale(0.9);
    opacity: 0;
  }
  40% {
    transform: translateY(-8px) scale(1.03);
    opacity: 1;
  }
  60% {
    transform: translateY(4px) scale(0.98);
  }
  80% {
    transform: translateY(-2px) scale(1.01);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

@keyframes spring-pop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}

/* --- Shimmer / Shine Keyframes --- */

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

@keyframes shimmer-border {
  0% {
    border-color: rgba(255, 140, 66, 0.3);
  }
  50% {
    border-color: rgba(255, 60, 127, 0.8);
  }
  100% {
    border-color: rgba(255, 140, 66, 0.3);
  }
}

/* --- Stagger Fade-In Keyframes --- */

@keyframes stagger-fade-in {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes stagger-fade-in-left {
  0% {
    opacity: 0;
    transform: translateX(-30px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes stagger-fade-in-right {
  0% {
    opacity: 0;
    transform: translateX(30px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

/* --- Pulse Glow Keyframes --- */

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 8px rgba(255, 60, 127, 0.2);
  }
  50% {
    box-shadow: 0 0 20px rgba(255, 60, 127, 0.5), 0 0 40px rgba(255, 60, 127, 0.15);
  }
}

@keyframes pulse-glow-soft {
  0%, 100% {
    box-shadow: 0 0 6px rgba(255, 140, 66, 0.15);
  }
  50% {
    box-shadow: 0 0 16px rgba(255, 140, 66, 0.35);
  }
}

/* --- Wiggle Keyframes --- */

@keyframes wiggle {
  0%, 100% {
    transform: rotate(0deg);
  }
  15% {
    transform: rotate(-4deg);
  }
  30% {
    transform: rotate(3deg);
  }
  45% {
    transform: rotate(-2deg);
  }
  60% {
    transform: rotate(1.5deg);
  }
  75% {
    transform: rotate(-1deg);
  }
}

@keyframes wiggle-hover {
  0%, 100% {
    transform: rotate(0deg) scale(1);
  }
  20% {
    transform: rotate(-6deg) scale(1.05);
  }
  40% {
    transform: rotate(4deg) scale(1.03);
  }
  60% {
    transform: rotate(-2deg) scale(1.01);
  }
  80% {
    transform: rotate(1deg) scale(1);
  }
}

/* --- Squash & Stretch Keyframes --- */

@keyframes squash-stretch {
  0% {
    transform: scale(1, 1);
  }
  20% {
    transform: scale(1.15, 0.88);
  }
  40% {
    transform: scale(0.92, 1.08);
  }
  60% {
    transform: scale(1.04, 0.97);
  }
  80% {
    transform: scale(0.99, 1.01);
  }
  100% {
    transform: scale(1, 1);
  }
}

/* --- Float / Hover Keyframes --- */

@keyframes gentle-float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-6px);
  }
}

@keyframes gentle-rotate {
  0%, 100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(1.5deg);
  }
  75% {
    transform: rotate(-1.5deg);
  }
}

/* --- Reveal Keyframes --- */

@keyframes reveal-up {
  0% {
    clip-path: inset(100% 0 0 0);
    opacity: 0;
  }
  100% {
    clip-path: inset(0 0 0 0);
    opacity: 1;
  }
}

@keyframes reveal-scale {
  0% {
    clip-path: inset(50% 50% 50% 50%);
    opacity: 0;
  }
  100% {
    clip-path: inset(0 0 0 0);
    opacity: 1;
  }
}

/* --- Sparkle Keyframes --- */

@keyframes sparkle {
  0%, 100% {
    opacity: 0;
    transform: scale(0.5);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

@keyframes sparkle-rotate {
  0% {
    transform: rotate(0deg) scale(0.5);
    opacity: 0;
  }
  50% {
    transform: rotate(180deg) scale(1);
    opacity: 1;
  }
  100% {
    transform: rotate(360deg) scale(0.5);
    opacity: 0;
  }
}

/* --- Typing Cursor Keyframes --- */

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

/* --- Ripple Keyframes --- */

@keyframes ripple-out {
  0% {
    transform: scale(0);
    opacity: 0.5;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* --- Shake Keyframes --- */

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-3px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(3px);
  }
}

/* --- Heartbeat Keyframes --- */

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.15);
  }
  28% {
    transform: scale(1);
  }
  42% {
    transform: scale(1.1);
  }
  56% {
    transform: scale(1);
  }
}

/* ===================================================================================
 * UTILITY CLASSES — Apply animations easily
 * =================================================================================== */

/* Spring entrance */
.spring-bounce {
  animation: spring-bounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.spring-bounce-up {
  animation: spring-bounce-up 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.spring-pop {
  animation: spring-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

/* Stagger children — apply to parent, delays increase for each child */
.stagger-fade-in > * {
  animation: stagger-fade-in 0.5s ease both;
}

.stagger-fade-in > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-fade-in > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-fade-in > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-fade-in > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-fade-in > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-fade-in > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-fade-in > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-fade-in > *:nth-child(8) { animation-delay: 0.4s; }
.stagger-fade-in > *:nth-child(9) { animation-delay: 0.45s; }

.stagger-fade-in-left > * {
  animation: stagger-fade-in-left 0.5s ease both;
}

.stagger-fade-in-left > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-fade-in-left > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-fade-in-left > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-fade-in-left > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-fade-in-left > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-fade-in-left > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-fade-in-left > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-fade-in-left > *:nth-child(8) { animation-delay: 0.4s; }
.stagger-fade-in-left > *:nth-child(9) { animation-delay: 0.45s; }

/* Pulse glow */
.pulse-glow {
  animation: pulse-glow 2.5s ease-in-out infinite;
}

.pulse-glow-soft {
  animation: pulse-glow-soft 3s ease-in-out infinite;
}

/* Wiggle on hover */
.wiggle-hover:hover {
  animation: wiggle-hover 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Float */
.gentle-float {
  animation: gentle-float 3s ease-in-out infinite;
}

.gentle-rotate {
  animation: gentle-rotate 6s ease-in-out infinite;
}

/* Reveal */
.reveal-up {
  animation: reveal-up 0.6s ease both;
}

.reveal-scale {
  animation: reveal-scale 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

/* Shimmer effect — apply to elements with a background */
.shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.15) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s linear infinite;
}

.shimmer-border {
  animation: shimmer-border 3s ease-in-out infinite;
}

/* Squash & stretch on click */
.squash-stretch:active {
  animation: squash-stretch 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Sparkle */
.sparkle {
  animation: sparkle 1.5s ease-in-out infinite;
}

/* Blink cursor */
.blink-cursor::after {
  content: "|";
  animation: blink-cursor 1s step-end infinite;
  color: #ff3c7f;
}

/* Shake — for errors */
.shake {
  animation: shake 0.5s ease;
}

/* Heartbeat */
.heartbeat {
  animation: heartbeat 1.5s ease-in-out infinite;
}

/* Ripple — wrap a .ripple element inside a relatively positioned button */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  width: 20px;
  height: 20px;
  animation: ripple-out 0.6s ease-out;
  pointer-events: none;
}

/* ===================================================================================
 * PREFERENCE: Respect reduced motion
 * =================================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}