body {
    font-family: Arial, sans-serif;
    background-color: #f4f8fb;
    margin: 0;
    padding: 20px;
    color: #333;
}

h1 {
    color: #0b6e4f;
    text-align: center;
}

h2 {
    text-align: center;
    color: #1d3557;
}

p {
    font-size: 18px;
    line-height: 1.6;
}

ul {
    background: white;
    padding: 20px;
    border-radius: 10px;
}

li {
    margin: 10px 0;
}

hr {
    border: 1px solid #ddd;
}
nav {
    background: #0b6e4f;
    padding: 15px;
    text-align: center;
    border-radius: 8px;
    margin-bottom: 20px;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 12px;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}
input {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    box-sizing: border-box;
}

button {
    background: #0b6e4f;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background: #09563d;
}

#result {
    margin-top: 15px;
    font-weight: bold;
    font-size: 18px;
}
textarea{
    width:100%;
    padding:12px;
    border:1px solid #ccc;
    border-radius:6px;
    font-size:16px;
    box-sizing:border-box;
}
.container{
    max-width:900px;
    margin:auto;
    background:white;
    padding:25px;
    border-radius:15px;
    box-shadow:0 0 20px rgba(0,0,0,0.15);
}
header{
    background:#0b6e4f;
    color:white;
    text-align:center;
    padding:30px 20px;
    border-radius:15px;
    margin-bottom:25px;
}

header h1{
    color:white;
    margin-bottom:10px;
}

.tagline{
    font-size:20px;
    margin:10px 0;
}

.motto{
    font-size:18px;
    font-style:italic;
}
section{
    background:#f9fbfc;
    padding:20px;
    margin:25px 0;
    border-radius:12px;
    border-left:6px solid #0b6e4f;
    box-shadow:0 2px 8px rgba(0,0,0,0.08);
}

section h2{
    margin-top:0;
    color:#0b6e4f;
}
#darkBtn{
    margin-top:15px;
    background:white;
    color:#0b6e4f;
    padding:10px 18px;
    border:none;
    border-radius:8px;
    font-weight:bold;
    cursor:pointer;
}
.dark-mode{
    background:#121212;
    color:white;
}

.dark-mode .container{
    background:#1e1e1e;
}

.dark-mode section{
    background:#2b2b2b;
    color:white;
}

.dark-mode h2{
    color:#66ff99;
}
.dark-mode ul{
    background:#2b2b2b;
}

.dark-mode li{
    color:white;
}

.dark-mode p{
    color:white;
}
footer{
    text-align:center;
    margin-top:40px;
    padding:20px;
    border-top:1px solid #ccc;
    font-size:16px;
}

footer p{
    margin:6px 0;
}