:root {
    --bg-color: #0b0f19;
    --text-color: #e2e8f0;
    --accent-color: #00f0ff;
    --accent-hover: #00c6d4;
    --card-bg: #111827;
    --border-color: #1f2937;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    text-decoration: none;
    color: var(--text-color);
    transition: color 0.3s ease;
}

/* Navbar */
.navbar {
    background-color: rgba(11, 15, 25, 0.95);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

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

.nav-links a:not(.btn-nav):hover {
    color: var(--accent-color);
}

.btn-nav {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(rgba(19, 27, 47, 0.8), rgba(11, 15, 25, 0.95)), url('hero.png') center/cover no-repeat;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #ffffff;
    line-height: 1.2;
}

.hero p {
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    color: #94a3b8;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border: 1px solid var(--accent-color);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--text-color);
}

/* Features Section */
.features {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #ffffff;
}

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

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.card p {
    color: #94a3b8;
    font-size: 0.95rem;
}

/* Tech Section */
.tech-section {
    padding: 5rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background-color: #0f1422;
}

.tech-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.tech-box h2 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.tech-box p {
    color: #94a3b8;
    font-size: 1.1rem;
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    color: #64748b;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .btn {
        width: 100%;
        max-width: 300px;
    }
}