/* Base & Utilities */
html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0f172a;
}
::-webkit-scrollbar-thumb {
    background: #0d9488;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #14b8a6;
}

/* Service Card Hover Effects */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0d9488, #14b8a6);
    transform: scaleX(0);
    transition: transform 0.5s ease;
    transform-origin: left;
}

.service-card:hover::after {
    transform: scaleX(1);
}

/* Gallery Item Hover */
.gallery-item {
    position: relative;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 148, 136, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.gallery-item:hover::after {
    opacity: 1;
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(2, 6, 23, 0.95) !important;
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Fade-in animation for below-fold content */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .gallery-item img {
        transition: none;
    }
    .service-card {
        transition: none;
    }
    .service-card::after {
        transition: none;
    }
}

/* Input focus styles */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

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