body {
    margin:0;
    font-family:Arial;
    background:#f4f7fb;
}

header {
    background:#0b2f57;
    color:white;
    padding:20px;
    display:flex;
    justify-content:space-between;
}

nav a {
    color:white;
    text-decoration:none;
    margin-left:15px;
}

.dashboard, .grid {
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    gap:20px;
    padding:20px;
}

.card {
    background:white;
    padding:20px;
    border-radius:12px;
    box-shadow:0 2px 10px rgba(0,0,0,0.1);
}

.card h2 {
    border-bottom:3px solid #f58220;
    padding-bottom:10px;
    color:#0b2f57;
}

.alert {
    background:#fff1f2;
    border-left:5px solid red;
    padding:10px;
    margin-bottom:10px;
}

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

th, td {
    border-bottom:1px solid #ddd;
    padding:8px;
}

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

button {
    background:#0b2f57;
    color:white;
    border:none;
    padding:10px 15px;
    border-radius:6px;
}

.login-box {
    width:400px;
    margin:100px auto;
    background:white;
    padding:30px;
    border-radius:12px;
}

.form-card {
    max-width:700px;
    margin:30px auto;
}