body {
    font-family: "Helvetica", "Arial", sans-serif;
    background: #f3f4f6;
    margin: 0;
    padding: 20px;
}

.login-container, .dashboard {
    max-width: 420px;
    margin: 40px auto;
    padding: 24px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

label {
    display: block;
    margin-top: 10px;
    font-weight: 700;
}

input, select {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

button {
    margin-top: 20px;
    width: 100%;
    padding: 12px;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}
button:hover {
    background: #1d4ed8;
}

.error-box {
    background: #fca5a5;
    padding: 12px;
    border-radius: 6px;
    color: #b91c1c;
    margin-bottom: 14px;
    text-align: center;
    font-weight: 700;
}

.msg-box {
    background: #d1fae5;
    padding: 12px;
    border-radius: 6px;
    color: #065f46;
    margin-bottom: 14px;
    text-align: center;
    font-weight: 700;
}

.user-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
.user-table th, .user-table td {
    border: 1px solid #ccc;
    padding: 8px;
}
.user-table th {
    background: #e5e7eb;
}

.menu li {
    list-style: none;
    margin: 12px 0;
}
.menu a {
    display: block;
    padding: 12px;
    background: #2563eb;
    color: #fff;
    border-radius: 6px;
    text-decoration: none;
    text-align: center;
}
.menu a:hover {
    background: #1d4ed8;
}