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

/* ตั้งค่าพื้นฐานทั้งเว็บ */
body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* ===== Header ===== */
header {
    background: #FFE87C;
    color: #040720;
    padding: 40px 20px;
    text-align: center;
}

header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

header p {
    font-size: 18px;
    opacity: 0.9;
}

/* ===== Navigation ===== */
nav {
    background: #1e3799;
    display: flex;
    justify-content: center;
}

nav a {
    color: #FFF;
    text-decoration: none;
    padding: 15px 20px;
    transition: background 0.3s;
}

nav a:hover {
    background: #4a69bd;
}

/* ===== Main Content ===== */
main {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 20px;
}

section {
    margin-bottom: 40px;
}

section h2 {
    color: #FFE87C;
    margin-bottom: 10px;
}

section p,
section ul {
    font-size: 16px;
}

section ul {
    margin-left: 20px;
}

/* ===== Footer ===== */
footer {
    background: #FFE87C;
    color: #040720;
    text-align: center;
    padding: 15px;
}