:root {
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --accent-cyan: #00FFFF;
    --accent-glow: rgba(0, 255, 255, 0.4);
    --text-primary: #FFFFFF;
    --text-secondary: #8B949E;
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border: rgba(0, 255, 255, 0.1);
    --transition-speed: 0.3s;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3 {
    text-transform: uppercase;
    letter-spacing: 2px;
}

.neon-text {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--accent-glow);
}

/* Layout */
.container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    height: 80px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-speed);
}

.nav-links a:hover {
    color: var(--accent-cyan);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--accent-cyan);
    border-radius: 3px;
    transition: var(--transition-speed);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Sections */
section {
    padding: 100px 0;
}

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at center, rgba(0, 255, 255, 0.05) 0% , transparent 70%);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition-speed);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-cyan);
    color: #000;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px var(--accent-glow);
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    transition: var(--transition-speed);
}

.card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-10px);
}

/* Footer */
footer {
    padding: 50px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

    .nav-links {
        display: none; /* Remove from flex flow on mobile */
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        align-items: flex-end; /* Align items to the right */
        padding-right: 3rem;   /* Space from the edge */
        gap: 3rem;
        transition: 0.5s ease;
        z-index: 1000;
        backdrop-filter: blur(20px);
    }

    .nav-links.active {
        display: flex; /* Show only when active */
        right: 0;
    }

    .nav-links a {
        font-size: 1.5rem;
        color: var(--text-primary);
    }

    .hero h1 { font-size: 2.5rem; }

    .container {
        width: 100%;
    }
}