body, .theme-transition {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

/* ── Glass Morphism ── */
.glass {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.dark .glass {
  background: rgba(15, 23, 42, 0.6);
  border-color: rgba(255, 255, 255, 0.08);
}
.glass-strong {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.dark .glass-strong {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ── Gradient Text ── */
.gradient-text {
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Scroll Reveal Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(7) { transition-delay: 0.6s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(8) { transition-delay: 0.7s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(9) { transition-delay: 0.8s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(10) { transition-delay: 0.9s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(11) { transition-delay: 1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(12) { transition-delay: 1.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(13) { transition-delay: 1.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(14) { transition-delay: 1.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(15) { transition-delay: 1.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(16) { transition-delay: 1.5s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(17) { transition-delay: 1.6s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(18) { transition-delay: 1.7s; opacity: 1; transform: translateY(0); }

/* ── Floating / Levitation ── */
.float-slow {
  animation: float 6s ease-in-out infinite;
}
.float-medium {
  animation: float 4s ease-in-out infinite;
}
.float-fast {
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

/* ── Pulse Glow ── */
.pulse-glow {
  animation: pulseGlow 2s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.3); }
  50% { box-shadow: 0 0 0 16px rgba(37, 99, 235, 0); }
}

/* ── Shimmer / Shine ── */
.shimmer {
  position: relative;
  overflow: hidden;
}
.shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transform: skewX(-20deg);
  animation: shimmer 4s infinite;
}
@keyframes shimmer {
  0% { left: -75%; }
  100% { left: 125%; }
}

/* ── Gradient Border ── */
.gradient-border {
  position: relative;
  background-clip: padding-box;
  border: 1px solid transparent;
}
.gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ── Orbs (decorative background blobs) ── */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  pointer-events: none;
  z-index: 0;
}

/* ── Card Hover Lift ── */
.card-lift {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.card-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px -12px rgba(0, 0, 0, 0.15);
}
.dark .card-lift:hover {
  box-shadow: 0 20px 60px -12px rgba(0, 0, 0, 0.4);
}

/* ── Carousel ── */
.carousel-container { position: relative; overflow: hidden; }
.carousel-slide {
  position: absolute; inset: 0; opacity: 0; transform: scale(1.05);
  transition: opacity 1s ease-in-out, transform 4s ease-out;
}
.carousel-slide.active { opacity: 1; transform: scale(1); z-index: 10; }
.carousel-dot { width: 8px; height: 8px; background: rgba(255, 255, 255, 0.5); border-radius: 50%; cursor: pointer; transition: all 0.3s; }
.carousel-dot.active { background: #fff; width: 24px; border-radius: 4px; }
.carousel-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 20;
  width: 44px; height: 44px; border-radius: 9999px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(15, 23, 42, 0.75); color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.25);
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.carousel-arrow:hover { background: rgba(15, 23, 42, 0.95); transform: translateY(-50%) scale(1.06); }
.carousel-arrow:focus-visible { outline: 3px solid rgba(34, 211, 238, 0.8); outline-offset: 3px; }
.carousel-prev { left: 16px; }
.carousel-next { right: 16px; }

/* ── Banner Pulse ── */
.banner-pulse { animation: bannerPulse 3s infinite; }
@keyframes bannerPulse {
  0% { box-shadow: 0 0 20px rgba(34, 211, 238, 0.3); }
  50% { box-shadow: 0 0 40px rgba(34, 211, 238, 0.6); }
  100% { box-shadow: 0 0 20px rgba(34, 211, 238, 0.3); }
}

/* ── Navbar active indicator ── */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: center;
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

/* ── Counter ── */
.counter-value {
  display: inline-block;
}

/* ── Decorative quote marks ── */
.quote-mark {
  position: absolute;
  top: -8px;
  left: -4px;
  font-size: 64px;
  line-height: 1;
  color: rgba(37, 99, 235, 0.1);
  font-family: Georgia, serif;
  user-select: none;
  pointer-events: none;
}
.dark .quote-mark {
  color: rgba(37, 99, 235, 0.15);
}

/* ── Form input premium ── */
.input-premium {
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}
.input-premium:focus {
  transform: translateY(-1px);
  border-color: #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* ── Button shine effect ── */
.btn-shine {
  position: relative;
  overflow: hidden;
}
.btn-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s;
}
.btn-shine:hover::before {
  left: 150%;
}

/* ── Background Pattern ── */
.bg-dots {
  background-image: radial-gradient(rgba(37, 99, 235, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}
.dark .bg-dots {
  background-image: radial-gradient(rgba(37, 99, 235, 0.12) 1px, transparent 1px);
}

/* ── Gradient divider ── */
.gradient-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, #2563eb, #06b6d4, transparent);
  border: none;
}

/* ── 3D Card Tilt (mouse-tracked) ── */
.tilt-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}
.tilt-3d .tilt-content {
  transition: transform 0.15s ease-out;
  transform-style: preserve-3d;
  will-change: transform;
}

/* ── 3D Hover Lift + Rotate ── */
.hover-3d {
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
  perspective: 800px;
}
.hover-3d:hover {
  transform: translateY(-10px) rotateX(4deg) rotateY(2deg) scale(1.02);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.2);
}
.dark .hover-3d:hover {
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.5);
}

/* ── 3D Floating Orbs ── */
.orb-3d {
  animation: orbFloat3D 8s ease-in-out infinite;
  transform-style: preserve-3d;
}
@keyframes orbFloat3D {
  0%, 100% { transform: translateY(0px) rotateX(0deg) rotateY(0deg) scale(1); }
  25% { transform: translateY(-15px) rotateX(5deg) rotateY(-10deg) scale(1.05); }
  50% { transform: translateY(-8px) rotateX(-3deg) rotateY(5deg) scale(0.98); }
  75% { transform: translateY(-20px) rotateX(7deg) rotateY(-5deg) scale(1.03); }
}

/* ── Magnetic Button ── */
.magnetic-wrap {
  display: inline-block;
  transition: transform 0.2s ease-out;
  will-change: transform;
}

/* ── 3D Reveal (rotate-in) ── */
.reveal-3d {
  opacity: 0;
  transform: perspective(800px) rotateX(15deg) translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-3d.revealed {
  opacity: 1;
  transform: perspective(800px) rotateX(0deg) translateY(0);
}

/* ── Depth layers (parallax) ── */
.depth-1 { z-index: 1; }
.depth-2 { z-index: 2; }
.depth-3 { z-index: 3; }

/* ── Glow trail effect ── */
.glow-trail {
  position: relative;
}
.glow-trail::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: inherit;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(37, 99, 235, 0.12), transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}
.glow-trail:hover::after {
  opacity: 1;
}

/* ── Interactive icon pulse ── */
.icon-pulse {
  animation: iconPulse 3s ease-in-out infinite;
}
@keyframes iconPulse {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.08); filter: brightness(1.2); }
}

/* ── Doctor card image zoom ── */
.doctor-img {
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.group:hover .doctor-img {
  transform: scale(1.15);
}

/* ── Featured card glow ── */
.featured-glow {
  position: relative;
}
.featured-glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, #2563eb, #06b6d4, #2563eb);
  background-size: 200% 200%;
  animation: gradientSpin 3s linear infinite;
  z-index: -1;
  opacity: 0.5;
}
@keyframes gradientSpin {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}