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

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

body {
    overflow-x: hidden;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #0A1628;
}

::-webkit-scrollbar-thumb {
    background: #4ade80;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #86efac;
}

::selection {
    background: #4ade80;
    color: #0A1628;
}

#page-loader {
    animation: fadeOut 0.6s ease forwards;
    animation-delay: 0.8s;
    pointer-events: none;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

#site-header {
    transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#site-header.scrolled {
    background-color: rgba(3, 7, 20, 0.95);
    backdrop-filter: blur(16px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-link {
    position: relative;
}

.mobile-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #4ade80;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.mobile-link:hover::after {
    width: 60%;
}

img {
    max-width: 100%;
    height: auto;
}

input:focus, textarea:focus {
    outline: none;
}

button {
    cursor: pointer;
}