/* ============================================================
   SRI CHANAKYA E.M SCHOOL — Animations
   ============================================================ */

/* --- Keyframes --- */
@keyframes loaderPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.08); opacity: 0.85; }
}

@keyframes loaderBar {
  0% { width: 0%; }
  40% { width: 55%; }
  70% { width: 78%; }
  100% { width: 100%; }
}

/* --- Home Page Loader --- */
@keyframes loaderIconFloat {
  0% {
    opacity: 0;
    transform: translate(0, 0) rotate(0deg);
  }
  15% {
    opacity: var(--max-opacity, 0.1);
  }
  50% {
    opacity: var(--max-opacity, 0.1);
    transform: translate(var(--dx, 20px), var(--dy, -60px)) rotate(var(--rot, 10deg));
  }
  85% {
    opacity: var(--max-opacity, 0.1);
  }
  100% {
    opacity: 0;
    transform: translate(calc(var(--dx, 20px) * 1.5), calc(var(--dy, -60px) * 1.8)) rotate(calc(var(--rot, 10deg) * -1));
  }
}

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

@keyframes loaderExit {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.05); visibility: hidden; }
}

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

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@keyframes whatsappPulse {
  0% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35); }
  50% { box-shadow: 0 4px 24px rgba(37, 211, 102, 0.55), 0 0 0 12px rgba(37, 211, 102, 0.08); }
  100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35); }
}

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

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

/* Floating school icon drift animations */
@keyframes floatDrift1 {
  0%   { transform: translate(0, 0) rotate(0deg); }
  25%  { transform: translate(15px, -20px) rotate(8deg); }
  50%  { transform: translate(-10px, -35px) rotate(-5deg); }
  75%  { transform: translate(20px, -15px) rotate(12deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes floatDrift2 {
  0%   { transform: translate(0, 0) rotate(0deg); }
  25%  { transform: translate(-20px, -15px) rotate(-10deg); }
  50%  { transform: translate(10px, -30px) rotate(6deg); }
  75%  { transform: translate(-15px, -10px) rotate(-8deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes floatDrift3 {
  0%   { transform: translate(0, 0) rotate(0deg); }
  30%  { transform: translate(12px, -25px) rotate(10deg); }
  60%  { transform: translate(-18px, -12px) rotate(-6deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes floatDrift4 {
  0%   { transform: translate(0, 0) rotate(0deg); }
  20%  { transform: translate(-10px, -18px) rotate(-12deg); }
  50%  { transform: translate(15px, -28px) rotate(8deg); }
  80%  { transform: translate(-8px, -10px) rotate(-4deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes floatDrift5 {
  0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
  33%  { transform: translate(-12px, -22px) rotate(15deg) scale(1.1); }
  66%  { transform: translate(8px, -10px) rotate(-8deg) scale(0.95); }
  100% { transform: translate(0, 0) rotate(0deg) scale(1); }
}

@keyframes floatDrift6 {
  0%   { transform: translate(0, 0) rotate(0deg); }
  25%  { transform: translate(18px, -12px) rotate(6deg); }
  50%  { transform: translate(-5px, -25px) rotate(-10deg); }
  75%  { transform: translate(10px, -8px) rotate(4deg); }
  100% { transform: translate(0, 0) rotate(0deg); }
}

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

@keyframes bubbleBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* --- Scroll Reveal Classes --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Staggered children reveals */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.08s; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.16s; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.24s; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.32s; }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.40s; }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.48s; }
.reveal-stagger.revealed > *:nth-child(7) { transition-delay: 0.56s; }
.reveal-stagger.revealed > *:nth-child(8) { transition-delay: 0.64s; }

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Hover Effects --- */
.card-hover {
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.12);
}

.img-zoom {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.img-zoom img {
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.img-zoom:hover img {
  transform: scale(1.08);
}

/* Button sweep effect */
.btn-sweep {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-sweep::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.6s ease;
  z-index: -1;
}

.btn-sweep:hover::before {
  left: 100%;
}

/* Decorative floating animation */
.float-animate {
  animation: float 4s ease-in-out infinite;
}

.float-animate-delayed {
  animation: float 4s ease-in-out 1s infinite;
}

/* --- Page Transition --- */
.page-transition-enter {
  animation: fadeIn 0.4s ease;
}

/* --- Navbar slide in --- */
.nav-links-mobile-enter {
  animation: fadeInRight 0.3s ease;
}

/* Placeholder shimmer for images */
.placeholder-shimmer {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}