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

body {
    font-family: Arial, sans-serif;
    background: #0f1115;
    color: #e6e6e6;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    border-bottom: 1px solid #1f232b;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    width: 32px;
    height: 32px;
}

.logo span {
    font-size: 18px;
    font-weight: 600;
}

.lang button {
    background: none;
    border: 1px solid #2a2f38;
    color: #ccc;
    padding: 5px 10px;
    margin-left: 5px;
    cursor: pointer;
}

.lang button:hover {
    background: #1a1f26;
}

main {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

h1 {
    margin-bottom: 30px;
}

.sub {
    margin-top: 40px;
    margin-bottom: 20px;
}

.cards {
    display: grid;
    gap: 20px;
}

.cards.small {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
    border: 1px solid #1f232b;
    padding: 20px;
    background: #14171c;
}

.card h2 {
    margin-bottom: 10px;
}

.card p {
    margin-bottom: 15px;
    color: #aaa;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid #2a2f38;
    text-decoration: none;
    color: #e6e6e6;
}

.btn:hover {
    background: #1a1f26;
}

footer {
    text-align: center;
    padding: 20px;
    border-top: 1px solid #1f232b;
    margin-top: 50px;
    color: #888;
}