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

body {
    overflow-x: hidden;
}

/* Scroll reveal animations - progressive enhancement via JS */
@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        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-up.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal-up:nth-child(2) { transition-delay: 0.1s; }
    .reveal-up:nth-child(3) { transition-delay: 0.2s; }
    .reveal-up:nth-child(4) { transition-delay: 0.3s; }

    .service-card {
        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);
    }

    .service-card.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .gallery-item {
        opacity: 0;
        transform: scale(0.95);
        transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .gallery-item.revealed {
        opacity: 1;
        transform: scale(1);
    }
}

/* Navbar styles */
.navbar-scrolled #navbar {
    background: rgba(10, 31, 63, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.navbar-scrolled #navbar .text-white {
    color: #ffffff;
}

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

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

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

::-webkit-scrollbar-track {
    background: #0a1f3f;
}

::-webkit-scrollbar-thumb {
    background: #2dd4bf;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4ade80;
}

/* Selection color */
::selection {
    background: rgba(45, 212, 191, 0.3);
    color: #0a1f3f;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 2px;
}

/* Image loading placeholder */
img {
    background-color: #d4dce6;
}

/* Print styles */
@media print {
    nav, #contact-form, .gallery-item {
        display: none;
    }
}