body {
    font-family: 'Inter', sans-serif;
    height: 100vh;
    margin: 0;

    /* Background Image */
    background: url("/images/swimmingonpool.png") no-repeat center center/cover;

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

/* Overlay biar lebih readable */
body::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    top: 0;
    left: 0;
    z-index: 0;
}

.login-box {
    width: 100%;
    max-width: 420px;
    z-index: 1;
}

.logo {
    text-align: center;
    margin-bottom: 25px;
}

.logo h2 {
    color: white;
    font-weight: 800;
    margin-top: 10px;
}

/* Glassmorphism Card */
.card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 8px 32px rgba(0,0,0,0.25);
    padding: 30px;
    color: white;
}

.card-title {
    text-align: center;
    font-weight: bold;
    margin-bottom: 20px;
}

.form-label {
    font-size: 0.85rem;
    color: #eee;
}

.form-control {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    padding: 10px 15px;
}

.form-control::placeholder {
    color: #ddd;
}

.form-control:focus {
    background: rgba(255,255,255,0.3);
    box-shadow: none;
    color: white;
}

.form-check-label {
    color: #ddd;
    font-size: 0.85rem;
}

.btn-custom-primary {
    background: rgba(0, 51, 153, 0.85);
    color: white;
    border: none;
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    transition: 0.3s;
}

.btn-custom-primary:hover {
    background: #003399;
}

.alert {
    font-size: 0.85rem;
    padding: 10px;
}