body {
    font-family: 'Orbitron', sans-serif;
    background: linear-gradient(45deg, #000, #111);
    color: #0ff;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: rgba(0,0,0,0.7);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

h1 {
    font-size: 3em;
    margin: 0;
    text-align: center;
    text-shadow: 0 0 10px #0ff, 0 0 20px #0ff, 0 0 30px #0ff;
}

nav {
    margin-top: 20px;
    text-align: center;
}

nav a {
    color: #0ff;
    text-decoration: none;
    margin: 0 15px;
    font-size: 1.2em;
    transition: all 0.3s ease;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #0ff;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

nav a:hover::after {
    transform: scaleX(1);
}

.content {
    margin-top: 150px;
}

.neon-border {
    border: 2px solid #0ff;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 0 10px #0ff, 0 0 20px #0ff;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.neon-border::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(transparent, transparent, transparent, #0ff);
    animation: rotate 4s linear infinite;
}

.neon-border::after {
    content: '';
    position: absolute;
    inset: 4px;
    background: #000;
    z-index: 1;
}

.neon-border:hover {
    transform: scale(1.02);
}

.neon-border > * {
    position: relative;
    z-index: 2;
}

@keyframes rotate {
    100% {
        transform: rotate(1turn);
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.float {
    animation: float 6s ease-in-out infinite;
}