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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(0, 13, 77, 0.95) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Feature card hover */
.feature-card {
    transform: translateY(0);
}

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

/* Mobile link transition */
.mobile-link {
    display: block;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Scroll reveal base — content is visible by default */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

/* Selection color */
::selection {
    background: rgba(34, 197, 94, 0.3);
    color: #fff;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #22c55e;
    outline-offset: 2px;
}

/* Image loading placeholder */
img {
    background-color: rgba(255, 255, 255, 0.05);
}