body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #181a1b;
    color: #f5f6fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: #23272a;
    padding: 2rem 0 1rem 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 2px;
    font-weight: 700;
}

.subtitle {
    color: #b9bbbe;
    font-size: 1.2rem;
    margin-top: 0.5rem;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 1rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
}

.card {
    background: #23272a;
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.15s, box-shadow 0.15s;
    cursor: pointer;
    border: 1px solid #2c2f33;
}

.card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    border-color: #7289da;
}

.card-logo {
    margin-bottom: 1rem;
}

.card-logo img {
    max-width: 80px;
    max-height: 80px;
    object-fit: contain;
    border-radius: 8px;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-desc {
    color: #b9bbbe;
    font-size: 1rem;
    margin-bottom: 1.2rem;
}

.card-link {
    color: #7289da;
    text-decoration: none;
    font-weight: 500;
    margin-top: auto;
    transition: color 0.15s;
}

.card-link:hover {
    color: #99aab5;
}

footer {
    background: #23272a;
    text-align: center;
    padding: 1rem 0;
    font-size: 1rem;
    color: #b9bbbe;
    box-shadow: 0 -2px 8px rgba(0,0,0,0.08);
}