body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f1f3f4;
    margin: 0;
    padding: 0;
}

header {
    background-color: #ffffff;
    padding: 15px 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 20px;
    color: #1a73e8;
    margin: 0;
}

main {
    padding: 20px;
}

.section {
    background: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

button {
    background-color: #1a73e8;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s ease-in-out;
}

button:hover {
    background-color: #155ab6;
}

input[type="file"],
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
}

a {
    color: #1a73e8;
    text-decoration: none;
}

audio,
video {
    display: block;
    margin-top: 10px;
    max-width: 100%;
}