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

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

/* Scroll Reveal */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Floating Animation */
@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-20px) scale(1.02); }
}

@keyframes float-delay {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-16px) scale(1.01); }
}

.animate-float {
    animation: float 8s ease-in-out infinite;
}

.animate-float-delay {
    animation: float-delay 10s ease-in-out infinite;
    animation-delay: -3s;
}

/* Navbar */
.nav-scrolled {
    background: rgba(3, 8, 13, 0.92) !important;
    backdrop-filter: blur(20px) !important;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.nav-scrolled #navbar {
    padding-top: 0;
}

/* Mobile Menu */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom Selection */
::selection {
    background: rgba(138, 228, 188, 0.3);
    color: #0d1f30;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid #8ae4bc;
    outline-offset: 2px;
}

/* Smooth image loading */
img {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* Gradient text utility */
.gradient-text {
    background: linear-gradient(135deg, #8ae4bc, #4fd39a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}