:root{
    --blue:#000091;
    --red:#e1000f;
    --light:#f6f6f6;
    --dark:#161616;
}

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

body{
    font-family:Arial,sans-serif;
    background:var(--light);
    color:var(--dark);
}

header{
    background:var(--blue);
    color:white;
    padding:20px;
}

.container{
    max-width:1200px;
    margin:auto;
    padding:20px;
}

nav{
    margin-top:10px;
}

nav a{
    color:white;
    text-decoration:none;
    margin-right:20px;
    font-weight:bold;
}

.hero{
    background:white;
    padding:40px;
    margin-top:20px;
    border-radius:8px;
    box-shadow:0 2px 8px rgba(0,0,0,.1);
}

.alert{
    background:var(--red);
    color:white;
    padding:15px;
    border-radius:8px;
    margin-bottom:20px;
}

.card{
    background:white;
    padding:20px;
    margin-top:20px;
    border-radius:8px;
    box-shadow:0 2px 8px rgba(0,0,0,.1);
}

button{
    background:var(--blue);
    color:white;
    border:none;
    padding:12px 20px;
    cursor:pointer;
    border-radius:4px;
}

button:hover{
    opacity:.9;
}

input,select{
    width:100%;
    padding:10px;
    margin-top:5px;
    margin-bottom:15px;
}

table{
    width:100%;
    border-collapse:collapse;
}

th,td{
    border:1px solid #ddd;
    padding:10px;
}

th{
    background:var(--blue);
    color:white;
}

footer{
    margin-top:50px;
    background:#222;
    color:white;
    padding:20px;
    text-align:center;
}