/* ============================================================
   ARHAM DENTAL — animations.css
   All keyframes and animation utilities
   ============================================================ */

/* ---------- Keyframes ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  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 fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes ripple {
  0%   { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(4); opacity: 0; }
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes counterUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ---------- Hero Animations ---------- */
.hero-content > * {
  animation: fadeInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1) both;
}
.hero-badge    { animation-delay: 0.1s; }
.hero h1       { animation-delay: 0.25s; }
.hero-subtitle { animation-delay: 0.4s; }
.hero-btns     { animation-delay: 0.55s; }
.hero-trust    { animation-delay: 0.7s; }

.hero-visual {
  animation: fadeInRight 0.9s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

/* ---------- Ripple on Buttons ---------- */
.btn { overflow: hidden; }
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

/* ---------- Navbar Slide ---------- */
.navbar { animation: slideDown 0.5s ease both; }

/* ---------- Gradient Text Shift ---------- */
.gradient-animate {
  background-size: 200% 200%;
  animation: gradientShift 4s ease infinite;
}

/* ---------- Card Hover Lift ---------- */
.card-lift {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(91,155,213,0.18);
}

/* ---------- Image Zoom on Hover ---------- */
.img-zoom img {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.img-zoom:hover img { transform: scale(1.06); }

/* ---------- Parallax Helper ---------- */
.parallax-item {
  transition: transform 0.1s linear;
  will-change: transform;
}

/* ---------- Spinner ---------- */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2.5px solid rgba(91,155,213,0.3);
  border-top-color: var(--clr-primary);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Page Loader ---------- */
.page-loader {
  position: fixed;
  inset: 0;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.5s ease, visibility 0.5s;
}
.page-loader.loaded { opacity: 0; visibility: hidden; }
.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.loader-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-primary);
  animation: fadeIn 0.5s ease;
}
.loader-bar {
  width: 200px; height: 3px;
  background: var(--clr-border);
  border-radius: 3px;
  overflow: hidden;
}
.loader-bar-fill {
  height: 100%;
  background: var(--grad-btn);
  border-radius: 3px;
  animation: loaderFill 1.2s ease forwards;
}
@keyframes loaderFill {
  from { width: 0; }
  to   { width: 100%; }
}

/* ---------- Floating Teeth Icons ---------- */
.floating-teeth {
  position: absolute;
  pointer-events: none;
  overflow: hidden;
  inset: 0;
}
.tooth-float {
  position: absolute;
  font-size: 1.5rem;
  opacity: 0.06;
  animation: toothFloat var(--dur, 8s) ease-in-out var(--delay, 0s) infinite alternate;
}
@keyframes toothFloat {
  0%   { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-30px) rotate(15deg); }
}

/* ---------- Stagger Children ---------- */
.stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.visible > *:nth-child(6) { transition-delay: 0.3s; }
.stagger.visible > *:nth-child(7) { transition-delay: 0.35s; }
.stagger.visible > *:nth-child(8) { transition-delay: 0.4s; }
.stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}