:root {
    --bg-color: #0a0a0a;
    --card-bg: #161616;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #00ff88;
    --accent-hover: #00cc6a;
    --border-color: #333;
    --nav-height: 70px;
    --font-main: 'Inter', sans-serif;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

/* Header & Nav */
header {
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    height: var(--nav-height);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: 0.3s;
}

/* Main Content */
main {
    max-width: 900px;
    margin: calc(var(--nav-height) + 40px) auto 60px;
    padding: 0 20px;
    min-height: calc(100vh - var(--nav-height) - 100px);
}

h1, h2, h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 30px;
    background: linear-gradient(90deg, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2rem;
    margin-top: 50px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

h3 {
    font-size: 1.5rem;
    margin-top: 30px;
    color: var(--accent);
}

p, li {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

strong {
    color: var(--text-primary);
    font-weight: 600;
}

ul {
    list-style: disc; /* Restore bullets for content */
    margin-left: 20px;
    margin-bottom: 20px;
}
/* Revert list style for nav and footer */
nav ul, footer ul {
    list-style: none;
    margin-left: 0;
    margin-bottom: 0;
}

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 40px 0;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        background-color: var(--bg-color);
        top: var(--nav-height);
        left: 0;
        width: 100%;
        height: 0;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        overflow: hidden;
        transition: height 0.3s ease;
        gap: 20px;
    }

    .nav-links.active {
        height: calc(100vh - var(--nav-height));
    }

    .hamburger {
        display: flex;
    }
    
    h1 {
        font-size: 2.5rem;
    }
}