:root {
    --bg-color: #101010;
    --text-color: #f0f0f0;
    --accent-color: #50FF50;
    --card-bg: #1a1a1a;
    --hover-bg: #252525;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid #333;
    width: 100%;
    box-sizing: border-box;
}

h1 {
    margin: 0;
    font-size: 2.5rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.subtitle {
    margin-top: 0.5rem;
    color: #888;
    font-size: 1rem;
}

main {
    width: 100%;
    max-width: 800px;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid #333;
    border-radius: 8px;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    transform: translateY(-5px);
    background-color: var(--hover-bg);
    border-color: var(--accent-color);
    box-shadow: 0 4px 15px rgba(80, 255, 80, 0.1);
}

.card h2 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
}

.card p {
    margin: 0;
    color: #aaa;
    font-size: 0.9rem;
    line-height: 1.4;
}

.tag {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.25rem 0.5rem;
    background-color: #333;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--accent-color);
}

footer {
    margin-top: auto;
    padding: 2rem;
    color: #555;
    font-size: 0.8rem;
}