body { 
    font-family: 'Poppins', sans-serif; 
    background-color: #f4f7fa; 
    background-image: radial-gradient(#ced4da 1px, transparent 1.5px); /* Titik abu-abu halus */
    background-size: 20px 20px; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    height: 100vh; 
    margin: 0; 
}

.login-card { 
    background: rgba(255, 255, 255, 0.95); 
    backdrop-filter: blur(5px); 
    padding: 40px; 
    border-radius: 20px; 
    box-shadow: 0 10px 25px rgba(0,0,0,0.1); 
    width: 90%; 
    max-width: 250px; 
    text-align: center; 
    border: 1px solid rgba(255,255,255,0.3);
}

.login-logo {
    width: 70px; 
    margin-bottom: 10px;
}

h3 { 
    color: #1976d2; 
    margin-bottom: 25px; 
    line-height: 1.4; 
    font-size: 1.1rem; 
}

h3 span {
    font-size: 0.8rem; 
    color: #666;
}

input { 
    width: 100%; 
    padding: 12px; 
    margin-bottom: 15px; 
    border: 1px solid #ddd; 
    border-radius: 10px; 
    box-sizing: border-box; 
    font-family: 'Poppins'; 
}

button { 
    width: 100%; 
    padding: 12px; 
    background: #1976d2; 
    color: white; 
    border: none; 
    border-radius: 10px; 
    cursor: pointer; 
    font-weight: 600; 
    transition: 0.3s; 
    font-family: 'Poppins'; 
}

button:hover { 
    background: #1565c0; 
    transform: translateY(-2px); 
}

#msg { 
    margin-top: 15px; 
    font-size: 0.85rem; 
    color: #d32f2f; 
    min-height: 20px; 
    font-weight: 500; 
}

.loader { 
    display: none; 
    margin: 10px auto; 
    border: 3px solid #f3f3f3; 
    border-top: 3px solid #1976d2; 
    border-radius: 50%; 
    width: 22px; 
    height: 22px; 
    animation: spin 1s linear infinite; 
}

@keyframes spin { 
    0% { transform: rotate(0deg); } 
    100% { transform: rotate(360deg); } 
}