/* Custom styles for Dr. Abramov Private Pediatrics */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Floating animation for hero cards */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-12px);
    }
}

.floating-card {
    animation: float 4s ease-in-out infinite;
}

.floating-card:nth-child(2) {
    animation-delay: -1s;
}

.floating-card:nth-child(3) {
    animation-delay: -2s;
}

.floating-card:nth-child(4) {
    animation-delay: -3s;
}

/* Navbar scroll effect */
nav.scrolled {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 20px rgba(16, 42, 67, 0.08);
}

/* Intersection Observer animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays */
.fade-up:nth-child(1) { transition-delay: 0.1s; }
.fade-up:nth-child(2) { transition-delay: 0.2s; }
.fade-up:nth-child(3) { transition-delay: 0.3s; }
.fade-up:nth-child(4) { transition-delay: 0.4s; }
.fade-up:nth-child(5) { transition-delay: 0.5s; }
.fade-up:nth-child(6) { transition-delay: 0.6s; }

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #1e3a5f;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #243b53;
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid #1e3a5f;
    outline-offset: 2px;
}

/* Button hover effects */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* Image loading placeholder */
img {
    background: linear-gradient(135deg, #f0f4f8 0%, #d9e2ec 100%);
}

/* Selection color */
::selection {
    background: #facc15;
    color: #102a43;
}