/* ============================================================
   SMILE BABY v2 — Animations & Transitions
   ============================================================ */

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.05); }
}

@keyframes pulseRing {
  0%   { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

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

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Scroll-triggered Animations ──────────────────────── */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Direction variants */
.animate-on-scroll.from-left {
  transform: translateX(-30px);
}

.animate-on-scroll.from-left.visible {
  transform: translateX(0);
}

.animate-on-scroll.from-right {
  transform: translateX(30px);
}

.animate-on-scroll.from-right.visible {
  transform: translateX(0);
}

.animate-on-scroll.from-bottom {
  transform: translateY(30px);
}

.animate-on-scroll.from-bottom.visible {
  transform: translateY(0);
}

.animate-on-scroll.scale-in {
  transform: scale(0.9);
}

.animate-on-scroll.scale-in.visible {
  transform: scale(1);
}

/* ── Stagger Delay Classes ────────────────────────────── */
.delay-1 { transition-delay: 100ms !important; }
.delay-2 { transition-delay: 200ms !important; }
.delay-3 { transition-delay: 300ms !important; }
.delay-4 { transition-delay: 400ms !important; }
.delay-5 { transition-delay: 500ms !important; }
.delay-6 { transition-delay: 600ms !important; }

/* ── Hero Animations ──────────────────────────────────── */
.hero-text-enter {
  animation: fadeInUp var(--duration-slower) var(--ease-out) forwards;
}

.hero-text-enter.hero-delay-1 {
  animation-delay: 200ms;
  opacity: 0;
}

.hero-text-enter.hero-delay-2 {
  animation-delay: 400ms;
  opacity: 0;
}

.hero-text-enter.hero-delay-3 {
  animation-delay: 600ms;
  opacity: 0;
}

.hero-image-enter {
  animation: fadeInRight var(--duration-slower) var(--ease-out) 300ms forwards;
  opacity: 0;
}

/* ── Card Hover Animations ────────────────────────────── */
.card-hover-lift {
  transition: transform var(--duration-base) var(--ease-default),
              box-shadow var(--duration-base) var(--ease-default);
}

.card-hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
}

.card-hover-glow {
  transition: box-shadow var(--duration-base) var(--ease-default);
}

.card-hover-glow:hover {
  box-shadow: 0 0 0 3px var(--primary-bg), var(--shadow-card-hover);
}

/* ── Button Hover Animations ──────────────────────────── */
.btn-hover-scale {
  transition: transform var(--duration-fast) var(--ease-bounce),
              box-shadow var(--duration-base) var(--ease-default);
}

.btn-hover-scale:hover {
  transform: scale(1.05);
}

.btn-hover-scale:active {
  transform: scale(0.97);
}

/* ── Loading Spinner ──────────────────────────────────── */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--line);
  border-top-color: var(--primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 56px;
  height: 56px;
  border-width: 4px;
}

/* Full-page loader */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-toast);
  transition: opacity var(--duration-slow) var(--ease-default);
}

.page-loader.loaded {
  opacity: 0;
  pointer-events: none;
}

/* ── Skeleton Loading ─────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg,
    var(--cream) 25%,
    var(--cream-2) 50%,
    var(--cream) 75%
  );
  background-size: 400% 100%;
  animation: shimmer 1.5s ease infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 14px;
  margin-bottom: var(--sp-2);
}

.skeleton-heading {
  height: 24px;
  width: 60%;
  margin-bottom: var(--sp-4);
}

.skeleton-img {
  width: 100%;
  aspect-ratio: 16/9;
}

/* ── Floating Animation ───────────────────────────────── */
.float {
  animation: float 3s ease-in-out infinite;
}

/* ── Heart Beat (for logo) ────────────────────────────── */
.heartbeat {
  animation: heartbeat 2s ease-in-out infinite;
}

/* ── Stagger Children ─────────────────────────────────── */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

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

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; }
.stagger-children.visible > *:nth-child(7) { transition-delay: 480ms; }
.stagger-children.visible > *:nth-child(8) { transition-delay: 560ms; }
.stagger-children.visible > *:nth-child(9) { transition-delay: 640ms; }
.stagger-children.visible > *:nth-child(10) { transition-delay: 720ms; }

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

  .animate-on-scroll {
    opacity: 1;
    transform: none;
  }
}