/* Base & Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    background-color: #060D1F;
    color: #ffffff;
    font-family: 'Space Grotesk', sans-serif;
}

/* Selection */
::selection {
    background-color: rgba(104, 211, 145, 0.3);
    color: #ffffff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0A1628;
}
::-webkit-scrollbar-thumb {
    background: #142C56;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #142C56;
}

/* Mobile Menu Animation */
.mobile-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
}

#mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Menu Button Animation */
.menu-line {
    transform-origin: center;
}

#menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}
#menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
#menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 20px;
    margin-right: 0;
}

/* Scroll Reveal */
.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);
}

.reveal[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal[data-reveal] {
        opacity: 0;
        transform: translateY(30px);
    }
}

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

/* Stagger children */
.reveal.stagger > * {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.stagger[data-reveal] > * {
    opacity: 0;
    transform: translateY(20px);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal.stagger[data-reveal] > * {
        opacity: 0;
        transform: translateY(20px);
    }
}

.reveal.stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

.reveal.stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal.stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal.stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal.stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }

/* Navbar Glass */
#navbar.glass {
    background: rgba(6, 13, 31, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Image hover parallax-lite */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}