:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --accent-color: #3b82f6;
    --card-bg: #1e293b;
}

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

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: rgba(15, 23, 42, 0.9);
    position: sticky;
    top: 0;
    padding: 20px 0;
    border-bottom: 1px solid #334155;
    z-index: 100;
}

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

nav a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.3s;
}

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

.hero {
    text-align: center;
    padding: 100px 0;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto 30px auto;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #2563eb;
}

.content-section {
    padding: 60px 0;
    background-color: #0b1120;
}

.content-section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
}

.cards {
    display: flex;
    gap: 20px;
    justify-content: space-between;
    flex-wrap: wrap;
}

.card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    flex: 1;
    min-width: 300px;
    text-align: center;
    border: 1px solid #334155;
}

.card i {
    color: var(--accent-color);
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
}

.card p {
    color: #94a3b8;
    margin-bottom: 25px;
}

.btn-outline {
    display: inline-block;
    border: 2px solid var(--accent-color);
    color: var(--text-color);
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s;
}

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

footer {
    text-align: center;
    padding: 30px 0;
    border-top: 1px solid #334155;
    color: #64748b;
}