body {
    font-family: 'Roboto', sans-serif;
    background-color: transparent;
}

.stApp {
    max-width: 100%;
    margin: 0;
    padding: 2rem;
    background-color: transparent;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.reportview-container {
    background-color: transparent;
}

.reportview-container .main {
    background-color: transparent;
}

.reportview-container .main .block-container {
    background-color: transparent;
}

.stNavigation {
    background-color: transparent !important;
}

.stNavigation .css-218ufz, 
.stNavigation .css-f0ifqm, 
.stNavigation .css-jc4t97 {
    background-color: transparent !important;
}

/* Word-by-word animation for "Welcome to Health & Nutrition Analyzer" */
.animated-text {
    opacity: 0;
    animation: fade-in 1s ease-in-out forwards;
}

@keyframes fade-in {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.animated-text span {
    display: inline-block;
    animation: slide-in 0.5s ease-in-out forwards;
}

@keyframes slide-in {
    0% {
        opacity: 0;
        transform: translateX(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive styles for mobile only */
@media (max-width: 767px) {
    .stApp {
        padding: 1rem;
    }

    .home-container h1.animated-text {
        font-size: 2.3rem !important;
    }

    .home-container .subtext {
        font-size: 1rem !important;
    }

    .stButton > button {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
    }
}

h1, h2, h3 {
    color: #4CAF50;
}

.stButton > button {
    background-color: transparent;
    color: white;
    border: 3px solid #4CAF50;
    border-radius: 5px;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    font-weight: 900;
    transition: all 0.3s ease;
}

/* Hover styles for buttons: text turns black, border turns lime */
.stButton > button:hover {
    background-color: transparent;
    color: lime;
    border: 6px solid lime;
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(74, 128, 35, 0.1);
}

/* Translation box, edit profile toggle, upload image box */
.stSelectbox > div > div > select,
.stCheckbox > label,
.stFileUploader > div {
    background-color: black !important;
    color: #45a049 !important;
}

/* Register section specific styles */
[data-testid="stNumberInput"] > div > div > input,
[data-testid="stSelectbox"] > div > div > select,
.stButton > button[kind="primaryFormSubmit"] {
    background-color: #45a049 !important;
    color: #000 !important;
}

/* Black spinner */
.stSpinner > div > div {
    border-top-color: black !important;
}

/* Add this to center-align elements on the home page */
.home-container {
    text-align: center;
}

/* Add this for the heading shadow effect */
h1.animated-text {
    text-shadow: 2px 2px 5px black;
}

/* Center-align subtext and buttons in the home page */
.home-container .subtext,
.stButton {
    text-align: center;
}

/* Add 3D effect to the heading in the home page */
h1.animated-text {
    text-shadow: 2px 2px 5px black, 0 0 25px #174919, 0 0 5px #00ff08;
}

/* Increase size of heading in the home page */
.home-container h1.animated-text {
    font-size: 4.5rem;
}

/* Increase size of subtext in the home page */
.home-container .subtext {
    text-align: center;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

/* Reduce distance between the two buttons in home page */
.stButton {
    margin: 0.5rem;
}

/* Center-align buttons in the home page */
.home-button-container {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

/* Ensure buttons are displayed inline */
.stButton > button {
    margin: 0 0.5rem;
}