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

body {
    background: radial-gradient(ellipse at center, rgba(0, 50, 100, 0.1) 0%, #0a0a0a 70%), #0a0a0a;
    color: #e0e0e0;
    font-family: 'Courier New', monospace;
    line-height: 1.6;
    overflow-x: hidden;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    border-bottom: 1px solid #00ffcc;
    padding: 1rem 2rem;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.nav-logo {
    font-size: 1.5rem;
    color: #00ffcc;
    letter-spacing: 4px;
    font-weight: 700;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    color: #e0e0e0;
    text-decoration: none;
    letter-spacing: 2px;
    font-size: 0.9rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    margin-left: auto;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: #00ffcc;
    margin: 3px 0;
    transition: all 0.3s ease;
}

@media screen and (max-width: 768px) {
    nav {
        padding: 1rem;
    }

    .nav-logo {
        font-size: 1rem;
        letter-spacing: 2px;
        white-space: nowrap;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(10, 10, 10, 0.98);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        border-bottom: 1px solid #00ffcc;
        padding: 1rem 0;
    }

    .nav-links.nav-active {
        left: 0;
    }

    .nav-links li {
        margin: 1rem 0;
        margin-left: 0;
    }

    .hamburger.active .hamburger-line:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .hamburger-line:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    background: #00ffcc;
    color: #0a0a0a;
    border: 1px solid #00ffcc;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: transparent;
    color: #00ffcc;
}