/* Full-page background */
body {
    margin: 0;
    height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Wrapper with background image */
.login-wrapper {
    height: 100vh;
    background:
        linear-gradient(rgba(0,0,0,0.55), rgba(0,0,0,0.55)),
        url("/assets/images/lab-bg.jpg") no-repeat center center fixed;
    background-size: cover;

    display: flex;
    align-items: center;
    justify-content: center;
}

/* Login card */
.login-card {
    width: 360px;
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.35);
}

/* Logo */
.login-logo {
    text-align: center;
    margin-bottom: 10px;
}

.login-logo img {
    width: 80px;
}

/* Inputs */
.form-control {
    border-radius: 6px;
}

/* Button */
.btn-primary {
    background-color: #1a237e;
    border: none;
}

.btn-primary:hover {
    background-color: #0d164f;
}