body{
    font-family: Arial, sans-serif;
    margin:0;
    padding:0;
    background:linear-gradient(to bottom,#eaf4ff,#ffffff);
    color:#222;
    line-height:1.6;
}

header{
    background:#001f3f;
    color:white;
    text-align:center;
    padding:30px;
}

header h1{
    margin:0;
    font-size:36px;
}

nav{
    background:#0074d9;
    text-align:center;
    padding:14px;
    position:sticky;
    top:0;
}

nav a{
    color:white;
    text-decoration:none;
    margin:0 15px;
    padding:8px 12px;
    font-weight:bold;
    border-radius:6px;
}

nav a:hover{
    background:rgba(255,255,255,0.2);
}

.container{
    width:90%;
    max-width:1000px;
    margin:25px auto;
    background:white;
    padding:25px;
    border-radius:12px;
    box-shadow:0 4px 12px rgba(0,0,0,0.1);
}

h1,h2{
    color:#001f3f;
}

img{
    max-width:100%;
    height:auto;
    display:block;
    margin:15px auto;
    border-radius:10px;
    border:2px solid #ccc;
}

table{
    width:100%;
    border-collapse:collapse;
    margin-top:20px;
}

table,th,td{
    border:1px solid #333;
}

th{
    background:#cce5ff;
}

th,td{
    padding:10px;
    text-align:center;
}

footer{
    background:#001f3f;
    color:white;
    text-align:center;
    padding:18px;
    margin-top:20px;
}

footer a{
    color:#ffd966;
    text-decoration:none;
}

.top-link{
    text-align:right;
}