body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f7f9fb;
    color: #222;
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    background: #fff;
    padding: 40px 32px 32px 32px;
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(25, 118, 210, 0.10);
    min-width: 340px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
h2 {
    margin-bottom: 24px;
    color: #1976d2;
    font-weight: 600;
}
label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #1976d2;
}
input[type="text"], input[type="password"] {
    width: 240px;
    height: 40px;
    padding: 10px 12px;
    margin-bottom: 18px;
    border: 1px solid #cfd8dc;
    border-radius: 6px;
    background: #f7f9fb;
    font-size: 15px;
    transition: border 0.2s;
    box-sizing: border-box;
}
input[type="text"]:focus, input[type="password"]:focus {
    border: 1.5px solid #1976d2;
    outline: none;
    background: #fff;
}
button[type="submit"] {
    width: 100%;
    padding: 12px 0;
    background: linear-gradient(90deg, #1976d2 60%, #42a5f5 100%);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.08);
    transition: background 0.2s;
}
button[type="submit"]:hover {
    background: linear-gradient(90deg, #1565c0 60%, #1976d2 100%);
}
#msg {
    color: #c62828;
    margin-top: 18px;
    font-weight: 500;
    min-height: 24px;
}