/* Base & Utilities */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scroll Reveal */
.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.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* Navbar */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(250, 249, 246, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(15, 43, 76, 0.06);
}

/* Mobile Menu */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

/* Service cards hover */
.service-card {
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-4px);
}

/* Gallery images */
.grid img {
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Form focus ring animation */
input:focus,
textarea:focus {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Custom selection color */
::selection {
    background: #a8e6cf;
    color: #0f2b4c;
}

/* Smooth image loading */
img {
    image-rendering: -webkit-optimize-contrast;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .grid img,
    img {
        transition: none;
    }
}