@font-face {
    font-family: 'Orbitron';
    src: url('https://storage.joshsworld.org/fonts/Orbitron-VariableFont_wght.woff2') format('woff2');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

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

:root {
    --neon-green: #00ff66;
    --neon-green-soft: rgba(0, 255, 102, 0.72);
    --neon-green-faint: rgba(0, 255, 102, 0.18);
    --shadow-green: rgba(0, 255, 102, 0.42);
    --shadow-deep: rgba(0, 0, 0, 0.78);
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #000;
}

body {
    font-family: 'Orbitron', monospace;
    color: var(--neon-green);
}

.corner-brand {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 100;
    font-size: clamp(12px, 1.5vw, 18px);
    color: var(--neon-green);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--shadow-green);
    cursor: pointer;
    text-decoration: none;
    transition: text-shadow 0.3s ease;
}

.corner-brand:hover {
    text-shadow: 0 0 20px var(--neon-green);
}

.background-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.fade-overlay {
    position: absolute;
    inset: 0;
    background: #000;
    opacity: 0;
    z-index: 10;
    pointer-events: none;
    transition: opacity 0.5s ease-in-out;
}

.fade-overlay.active {
    opacity: 1;
}

.main-container {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

/* Engine optimizations */
body.chromium .background-video {
    will-change: transform;
    transform: translateZ(0);
}

body.webkit .background-video {
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}