body {
    font-family: 'Hind Siliguri', sans-serif;

    /* Comfortable, soft background */
    background: linear-gradient(
        135deg,
        #faf3e0,   /* warm cream */
        #e8f5e9,   /* soft green tint */
        #e3f2fd    /* calm sky blue */
    );

    background-attachment: fixed; /* smooth effect */
    margin: 0;
    padding: 0;
}

/* Card styling */
.custom-card {
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.93);
    backdrop-filter: blur(6px);
    animation: fadeIn 0.6s ease-in-out;
 
}

h1 {
    color: #222;
    font-weight: 700;
    font-size: 2rem;
}

.stethoscope-image {
    width: 120px;
}

/* Button */
#diseaseButton {
    font-size: 1.1rem;
    padding: 12px;
    border-radius: 8px;
}

/* Subtle animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile */
@media (max-width: 480px) {
    h1 {
        font-size: 1.7rem;
    }
    .stethoscope-image {
        width: 100px;
    }
}