/* ============================================================
   ARVIND & JYOTI — Animations & Keyframes
   ============================================================ */

/* ── Heart Pulse ── */
@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15%       { transform: scale(1.18); }
  30%       { transform: scale(1); }
  45%       { transform: scale(1.10); }
  60%       { transform: scale(1); }
}

@keyframes heartbeatGlow {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 0 8px rgba(201, 116, 138, 0.6));
  }
  50% {
    transform: scale(1.15);
    filter: drop-shadow(0 0 24px rgba(201, 116, 138, 0.95)) drop-shadow(0 0 48px rgba(201, 116, 138, 0.4));
  }
}

/* ── Petal Fall ── */
@keyframes petalFall {
  0% {
    transform: translateY(-60px) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% { opacity: 1; }
  80% { opacity: 0.7; }
  100% {
    transform: translateY(110vh) translateX(var(--drift, 60px)) rotate(var(--spin, 360deg));
    opacity: 0;
  }
}

@keyframes petalSway {
  0%, 100% { margin-left: 0; }
  25%       { margin-left: 20px; }
  75%       { margin-left: -20px; }
}

/* ── Floating Particles ── */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.6; }
  50%       { transform: translateY(-20px) rotate(180deg); opacity: 1; }
}

@keyframes floatGentle {
  0%, 100% { transform: translateY(0px) translateX(0px); }
  33%       { transform: translateY(-12px) translateX(8px); }
  66%       { transform: translateY(-6px) translateX(-8px); }
}

/* ── Bokeh ── */
@keyframes bokehPulse {
  0%, 100% { transform: scale(1) translate(0, 0); opacity: 0.35; }
  33%       { transform: scale(1.15) translate(8px, -12px); opacity: 0.5; }
  66%       { transform: scale(0.9) translate(-10px, 8px); opacity: 0.25; }
}

@keyframes bokehDrift {
  0%   { transform: translate(0%, 0%) scale(1); }
  25%  { transform: translate(3%, -4%) scale(1.1); }
  50%  { transform: translate(-2%, 3%) scale(0.95); }
  75%  { transform: translate(4%, 2%) scale(1.05); }
  100% { transform: translate(0%, 0%) scale(1); }
}

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

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

/* ── Typewriter ── */
@keyframes blink {
  0%, 50%  { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ── Page Enter ── */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Fade variants ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(32px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Scale pop ── */
@keyframes scalePop {
  0%   { transform: scale(0.7); opacity: 0; }
  70%  { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(1); }
}

@keyframes scaleIn {
  from { transform: scale(0.92); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}

/* ── Border glow ── */
@keyframes borderGlow {
  0%   { opacity: 0.3; }
  100% { opacity: 0.7; }
}

/* ── Nav dot ── */
@keyframes navDot {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

/* ── Countdown flip ── */
@keyframes countFlip {
  0%   { transform: perspective(300px) rotateX(0deg); }
  50%  { transform: perspective(300px) rotateX(-90deg); opacity: 0.5; }
  100% { transform: perspective(300px) rotateX(0deg); }
}

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

/* ── Ripple ── */
@keyframes ripple {
  from { transform: scale(0.8); opacity: 1; }
  to   { transform: scale(2.4); opacity: 0; }
}

/* ── Scroll indicator ── */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 0.7; }
  50%       { transform: translateY(8px); opacity: 0.3; }
}

/* ── Timeline line draw ── */
@keyframes lineGrow {
  from { height: 0; opacity: 0; }
  to   { height: 100%; opacity: 1; }
}

/* ── Star twinkle ── */
@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(0.8); }
  50%       { opacity: 1; transform: scale(1.2); }
}

/* ── Entrance stagger helpers ── */
.anim-delay-1 { animation-delay: 0.1s; }
.anim-delay-2 { animation-delay: 0.2s; }
.anim-delay-3 { animation-delay: 0.3s; }
.anim-delay-4 { animation-delay: 0.4s; }
.anim-delay-5 { animation-delay: 0.5s; }
.anim-delay-6 { animation-delay: 0.6s; }
.anim-delay-7 { animation-delay: 0.7s; }
.anim-delay-8 { animation-delay: 0.8s; }

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