@font-face {
    font-family: 'FC Lamoon Thai';
    src: url('fonts/FC-Lamoon-Regular.otf') format('opentype');
    unicode-range: U+0E00-0E7F; /* Thai Unicode block */
  }

/* General layout */
body {
    font-family: 'Segoe UI', 'FC Lamoon Thai', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    text-align: center;
}

/* Navbar */
nav {
    background-color: #20232a;
    color: white;
    padding: 15px 0;
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.nav-links a {
    margin-left: 20px;
    text-decoration: none;
    color: #ccc;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: #fff;
}

/* Main heading */
h1 {
    margin-top: 40px;
    font-size: 28px;
    color: #333;
}

/* Input and buttons */
input[type="text"] {
    padding: 10px;
    font-size: 16px;
    width: 300px;
    max-width: 90%;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-top: 20px;
}

button {
    padding: 10px 15px;
    font-size: 16px;
    margin-left: 10px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

button:hover {
    background-color: #0056b3;
}

/* QR Code container */
#qrcode {
    margin: 30px auto;
    width: fit-content;
}

/* Download button */
button:nth-of-type(2) {
    background-color: #28a745;
    margin-top: 10px;
}

button:nth-of-type(2):hover {
    background-color: #1e7e34;
}

/* Ad space */
#ad-space {
    margin: 50px auto;
    background-color: #e2e3e5;
    color: #444;
    padding: 40px;
    width: 90%;
    max-width: 1000px;
    border-radius: 8px;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
}