/* Custom styles for Custom Concrete Foundations */

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #0d9488;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0f766e;
}

/* Selection color */
::selection {
    background: #0d9488;
    color: white;
}

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

/* Mobile menu animation */
#mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

#mobileMenu.open {
    max-height: 400px;
}

/* Fade-in animation for scroll reveals */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Stagger children animations */
.stagger-children .fade-in:nth-child(1) { transition-delay: 0.1s; }
.stagger-children .fade-in:nth-child(2) { transition-delay: 0.2s; }
.stagger-children .fade-in:nth-child(3) { transition-delay: 0.3s; }
.stagger-children .fade-in:nth-child(4) { transition-delay: 0.4s; }
.stagger-children .fade-in:nth-child(5) { transition-delay: 0.5s; }
.stagger-children .fade-in:nth-child(6) { transition-delay: 0.6s; }

/* Navbar scroll state */
.navbar-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Image lazy load placeholder */
img {
    background: linear-gradient(110deg, #f1f5f9 8%, #e2e8f0 18%, #f1f5f9 33%);
    background-size: 200% 100%;
    animation: shimmer 1.5s linear infinite;
}

img.loaded {
    animation: none;
    background: none;
}

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