/* Critical CSS for Above-the-Fold Content */
/* This CSS is inlined in the HTML for faster rendering */

/* Basic Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Courier New', monospace;
    background-color: #0a0a0a;
    color: #00ff00;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Header & Navigation - Critical for First Paint */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 255, 0, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #00ff00;
    text-decoration: none;
    text-shadow: 0 0 10px rgba(0, 255, 0, 0.5);
    transition: all 0.3s ease;
}

.logo:hover {
    text-shadow: 0 0 15px rgba(0, 255, 0, 0.8);
    transform: scale(1.05);
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: #00ff00;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #00ff00;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: #ffffff;
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.7);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: #00ff00;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section - Critical for First Paint */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-align: center;
    text-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(0, 255, 0, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(0, 255, 0, 0.8), 0 0 40px rgba(0, 255, 0, 0.6);
    }
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
    opacity: 0.8;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: transparent;
    border: 2px solid #00ff00;
    color: #00ff00;
    text-decoration: none;
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    z-index: 1;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 255, 0, 0.2);
    transition: left 0.3s ease;
    z-index: -1;
}

.cta-button:hover::before {
    left: 0;
}

.cta-button:hover {
    color: #0a0a0a;
    background-color: #00ff00;
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.5);
}

/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #0a0a0a;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 255, 0, 0.2);
    border-top: 3px solid #00ff00;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design for Critical Elements */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: rgba(10, 10, 10, 0.95);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 5rem;
        transform: translateY(-100%);
        transition: transform 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }
}