/* === Base Reset & Global === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: #040B18;
    color: #ffffff;
    overflow-x: hidden;
}

::selection {
    background-color: rgba(74, 237, 155, 0.3);
    color: #ffffff;
}

/* === Navbar === */
#navbar {
    background: transparent;
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease, padding 0.5s ease;
}

#navbar.scrolled {
    background: rgba(4, 11, 24, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

#navbar.scrolled .menu-line {
    background-color: #ffffff;
}

/* === Mobile Menu === */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.open .mobile-link {
    animation: fadeSlideIn 0.4s ease forwards;
    opacity: 1;
}

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

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Menu Lines Animation === */
#menu-toggle.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#menu-toggle.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: translateX(10px);
}

#menu-toggle.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 1.5rem;
}

/* === Menu Cards === */
.menu-card {
    will-change: transform;
}

.menu-card img {
    will-change: transform;
}

/* === Feature Cards === */
.feature-card {
    will-change: transform;
}

/* === Scroll Reveal Animations === */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

/* === Custom scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #040B18;
}

::-webkit-scrollbar-thumb {
    background: rgba(74, 237, 155, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(74, 237, 155, 0.5);
}

/* === Focus styles === */
a:focus-visible, button:focus-visible {
    outline: 2px solid #4AED9B;
    outline-offset: 4px;
    border-radius: 4px;
}

/* === Utility === */
.text-gradient-mint {
    background: linear-gradient(135deg, #B3FFD3, #4AED9B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}