*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Fade-in animation for hero elements */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Scroll reveal base state — always visible by default */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Reduced motion — skip animations entirely */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .animate-fade-in {
        animation: none;
        opacity: 1;
    }
}

/* Scroll reveal active state — only applies when JS adds the class */
.reveal.revealed {
    opacity: 0;
    transform: translateY(30px);
}

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

/* Navbar scroll state */
nav.scrolled {
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* Mobile menu animation */
#mobile-menu {
    animation: slideDown 0.3s cubic-bezier(0.22, 1, 0.36, 1) both;
}

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

/* Selection color */
::selection {
    background: rgba(20, 184, 166, 0.2);
    color: inherit;
}

/* Smooth focus outlines */
:focus-visible {
    outline: 1px solid rgba(20, 184, 166, 0.6);
    outline-offset: 2px;
}

/* Image loading placeholder */
img {
    background-color: #f1f5f9;
}