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

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

body {
    background-color: #040B18;
    color: #ffffff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0A1628;
}
::-webkit-scrollbar-thumb {
    background: #152D56;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #152D56;
}

/* Selection */
::selection {
    background: rgba(14, 220, 176, 0.2);
    color: #34E8B8;
}

/* Service card hover animation */
.service-card {
    transform: translateY(0);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), border-color 0.3s ease, box-shadow 0.3s ease;
}
.service-card:hover {
    transform: translateY(-4px);
}

/* Button ripple effect */
button, a {
    cursor: pointer;
}

/* Smooth focus */
a:focus-visible, button:focus-visible {
    outline: 2px solid #34E8B8;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(4, 11, 24, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Mobile menu transition */
#mobile-menu {
    animation: slideDown 0.3s ease forwards;
}
#mobile-menu.hidden {
    animation: slideUp 0.25s ease forwards;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); }
}

/* Scroll reveal base state (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .reveal.revealed {
        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; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}