body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}

header {
    background-color: #1e1e2f;
    color: white;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 24px;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

main {
    padding: 30px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.card {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
    padding: 20px;
    transition: transform 0.2s;
    text-align: center;
}

.card:hover {
    transform: translateY(-5px);
}

.card h3 {
    margin-top: 0;
    color: #1e1e2f;
}

.card p {
    color: #555;
}

.login-container {
    width: 320px;
    margin: 100px auto;
    text-align: center;
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0px 4px 12px rgba(0,0,0,0.15);
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 8px;
    border: 1px solid #ccc;
}

.login-container button {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    background-color: #1e1e2f;
    color: white;
    font-weight: bold;
    cursor: pointer;
}

.login-container button:hover {
    background-color: #333;
}

.media-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.media-preview video,
.media-preview img {
    max-width: 200px;
    border-radius: 8px;
    box-shadow: 0px 2px 6px rgba(0,0,0,0.2);
}