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

body{
margin:0;
padding:0;
font-family:Segoe UI, Arial, sans-serif;
color:#ffffff;
background-image:url('../images/kibotschaos.jpg');
background-size:cover;
background-position:center;
background-repeat:no-repeat;
background-attachment:fixed;
min-height:100vh;
}

a{
    color:#ffffff;
    text-decoration:none;
}

a:hover{
    color:#00ff66;
}

.topbar {
    background: #00b050;
    padding: 25px 40px;
    box-shadow:0 5px 20px rgba(0,0,0,.4);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: bold;
}

.topbar a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: bold;
}

.portal-container {
    display: flex;
    min-height: calc(100vh - 70px);
}

.sidebar {
width:250px;
background:rgba(10,20,30,.85);
backdrop-filter:blur(8px);
padding:20px;
}

.content {
    flex: 1;
    padding: 30px;
}

.login-box {
width:420px;
padding:35px;
border-radius:20px;
background:rgba(10,20,30,.92);
backdrop-filter:blur(8px);
box-shadow:0 0 30px rgba(0,0,0,.7);
margin-left:auto;
margin-right:100px;
margin-top:60px;
}

.login-box input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
}

.login-box button {
    width: 100%;
    padding: 12px;
    border: none;
    background: #00b050;
    color: white;
    font-weight: bold;
    cursor: pointer;
}

.tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.tile {
    background: #18232d;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    text-decoration: none;
    color: white;
    font-size: 24px;
}

.tile:hover {
    background: #00b050;
}

footer {
    background: #18232d;
    text-align: center;
    padding: 15px;
}