/* ============================================================
   ANIMATIONS.CSS — All Keyframe Animations
   Birthday Surprise Website
   ============================================================ */

/* ── Fade & Reveal ── */
@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(-40px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeInRight {
  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); }
}

/* ── Floating & Bobbing ── */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%       { transform: translateY(-18px) rotate(2deg); }
  66%       { transform: translateY(-8px) rotate(-1deg); }
}

@keyframes floatSlow {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-25px); }
}

@keyframes floatHorizontal {
  0%, 100% { transform: translateX(0px); }
  50%       { transform: translateX(15px); }
}

@keyframes bobbing {
  0%, 100% { transform: translateY(0) scale(1); }
  50%       { transform: translateY(-10px) scale(1.02); }
}

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

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

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

/* ── Pulse & Glow ── */
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%       { transform: scale(1.08); opacity: 0.85; }
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  14%       { transform: scale(1.2); }
  28%       { transform: scale(1); }
  42%       { transform: scale(1.15); }
  70%       { transform: scale(1); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(255,107,157,0.3), 0 0 40px rgba(255,107,157,0.1); }
  50%       { box-shadow: 0 0 40px rgba(255,107,157,0.6), 0 0 80px rgba(255,107,157,0.25); }
}

@keyframes glowPulseGold {
  0%, 100% { box-shadow: 0 0 20px rgba(248,181,0,0.3), 0 0 40px rgba(248,181,0,0.1); }
  50%       { box-shadow: 0 0 40px rgba(248,181,0,0.6), 0 0 80px rgba(248,181,0,0.25); }
}

@keyframes textGlow {
  0%, 100% { text-shadow: 0 0 10px rgba(255,107,157,0.5), 0 0 20px rgba(255,107,157,0.2); }
  50%       { text-shadow: 0 0 20px rgba(255,107,157,0.9), 0 0 40px rgba(255,107,157,0.5), 0 0 60px rgba(255,107,157,0.2); }
}

/* ── Shimmer ── */
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

@keyframes shimmerCard {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

/* ── Particles & Petals ── */
@keyframes petalFall {
  0%   { transform: translateY(-10vh) translateX(0px)  rotate(0deg);   opacity: 1; }
  25%  { transform: translateY(25vh)  translateX(30px) rotate(90deg);  opacity: 0.9; }
  50%  { transform: translateY(50vh)  translateX(-20px) rotate(180deg); opacity: 0.7; }
  75%  { transform: translateY(75vh)  translateX(25px) rotate(270deg); opacity: 0.4; }
  100% { transform: translateY(105vh) translateX(-10px) rotate(360deg); opacity: 0; }
}

@keyframes starTwinkle {
  0%, 100% { opacity: 0.2; transform: scale(0.8); }
  50%       { opacity: 1;   transform: scale(1.2); }
}

@keyframes particleRise {
  0%   { transform: translateY(0) scale(1);   opacity: 1; }
  100% { transform: translateY(-80px) scale(0); opacity: 0; }
}

@keyframes balloonRise {
  0%   { transform: translateY(100vh) rotate(-5deg); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-20vh) rotate(5deg); opacity: 0; }
}

/* ── Splash Screen ── */
@keyframes splashReveal {
  0%   { clip-path: circle(0% at 50% 50%);   opacity: 0; }
  60%  { clip-path: circle(60% at 50% 50%);  opacity: 1; }
  100% { clip-path: circle(150% at 50% 50%); opacity: 1; }
}

@keyframes nameReveal {
  0%   { letter-spacing: -0.5em; opacity: 0; filter: blur(12px); }
  60%  { letter-spacing: 0.15em; opacity: 0.8; filter: blur(2px); }
  100% { letter-spacing: 0.08em; opacity: 1;   filter: blur(0px); }
}

@keyframes lineGrow {
  from { width: 0; opacity: 0; }
  to   { width: 100%; opacity: 1; }
}

/* ── Typewriter ── */
@keyframes typingCursor {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Countdown ── */
@keyframes countFlip {
  0%   { transform: rotateX(0deg);   }
  50%  { transform: rotateX(-90deg); opacity: 0.5; }
  100% { transform: rotateX(0deg);   }
}

/* ── Timeline ── */
@keyframes timelineDraw {
  from { height: 0; }
  to   { height: 100%; }
}

@keyframes dotPop {
  0%   { transform: scale(0) rotate(-180deg); opacity: 0; }
  70%  { transform: scale(1.3) rotate(10deg); }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* ── Gallery ── */
@keyframes polaroidIn {
  0%   { opacity: 0; transform: rotate(var(--tilt)) scale(0.7) translateY(30px); }
  100% { opacity: 1; transform: rotate(var(--tilt)) scale(1) translateY(0); }
}

/* ── Confetti ── */
@keyframes confettiFall {
  0%   { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

/* ── Card Hover Lift ── */
@keyframes cardLift {
  from { transform: translateY(0) scale(1); }
  to   { transform: translateY(-8px) scale(1.02); }
}

/* ── Ripple ── */
@keyframes ripple {
  0%   { transform: scale(0); opacity: 1; }
  100% { transform: scale(4); opacity: 0; }
}

/* ── Morph Border ── */
@keyframes morphBorder {
  0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  25%       { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
  50%       { border-radius: 50% 60% 30% 40% / 40% 30% 60% 50%; }
  75%       { border-radius: 40% 30% 60% 70% / 70% 50% 40% 30%; }
}

/* ── Scroll Reveal (used via JS class toggle) ── */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

/* ── Stagger Delay Utilities ── */
.delay-100  { transition-delay: 0.1s !important; }
.delay-200  { transition-delay: 0.2s !important; }
.delay-300  { transition-delay: 0.3s !important; }
.delay-400  { transition-delay: 0.4s !important; }
.delay-500  { transition-delay: 0.5s !important; }
.delay-600  { transition-delay: 0.6s !important; }
.delay-700  { transition-delay: 0.7s !important; }
.delay-800  { transition-delay: 0.8s !important; }