:root {
    --bg-color: #000000;
    --text-color: #ffffff;
    --accent-color: #ffffff;
    --secondary-color: #333333;
    --font-main: 'Roboto', sans-serif;
}

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

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

header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.logo img {
    height: 30px;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 1px;
    transition: 0.3s;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: 0.3s;
}

nav ul li a:hover::after {
    width: 100%;
}

.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 0 10%;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../svg/hero-bg.svg') no-repeat center center/cover;
}

.hero h1 {
    font-size: 60px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    max-width: 600px;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    border: 2px solid var(--accent-color);
    color: var(--text-color);
    text-decoration: none;
    text-transform: uppercase;
    font-weight: bold;
    transition: 0.3s;
}

.btn:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

section {
    padding: 100px 10%;
}

.section-title {
    font-size: 40px;
    text-transform: uppercase;
    margin-bottom: 50px;
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.card {
    border: 1px solid var(--secondary-color);
    padding: 40px;
    transition: 0.3s;
}

.card:hover {
    border-color: var(--accent-color);
}

.card h3 {
    margin-bottom: 20px;
    text-transform: uppercase;
}

footer {
    padding: 50px 10%;
    border-top: 1px solid var(--secondary-color);
    text-align: center;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    margin: 0 15px;
    font-size: 12px;
}

.footer-info {
    color: #666;
    font-size: 12px;
    margin-top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    header { padding: 20px; }
    nav { display: none; }
    .hero h1 { font-size: 40px; }
}