* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: 'Roboto', sans-serif;
    background: #e0e7ff; 
    color: #333;
    padding: 20px;
}
.container {
    max-width: 650px;
    margin: 40px auto;
    background: #ffffff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}
h1 {
    text-align: center;
    color: #4a90e2;
    font-size: 2.5rem;
    margin-bottom: 20px;
}
.form-group, .dataset-section {
    margin-bottom: 25px;
}
.dataset-section {
    background-color: #f0faff;
    padding: 20px;
    border-radius: 12px;
    border: 2px solid #c3e0e5;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 25px;
}
label {
    font-weight: 600;
    color: #4a90e2;
    margin-bottom: 10px;
    display: block;
}
select, input[type="file"] {
    width: 100%;
    padding: 10px;
    border: 2px solid #b0c4d8;
    border-radius: 8px;
    background-color: #eef5ff;
    font-size: 1rem;
    color: #333;
}
select:focus, input[type="file"]:focus {
    border-color: #4a90e2;
    outline: none;
    box-shadow: 0 0 5px rgba(74, 144, 226, 0.5);
}
.button-row {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.toggle-button {
    width: 200px; /* Set a fixed width for consistent button size */
}
.toggle-button, .button {
    flex: 1;
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: #4a90e2;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}
.toggle-button:hover, .button:hover {
    background: #357ab8;
    transform: translateY(-3px);
}
.input-box {
    padding: 15px;
    border: 2px solid #c3dfe2;
    border-radius: 10px;
    background-color: #f9f9ff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}
.hidden {
    display: none;
}
.button-container {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}
.upload-button-row {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.toggle-button {
    width: 200px; /* Keep a consistent width for all toggle buttons */
}
.result-box {
    background: #e3fcef; /* Light green background for success */
    padding: 25px;
    border-radius: 10px;
    border: 2px solid #c3e6cb; /* Soft green border */
    text-align: center;
    margin-top: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.result-box h2 {
    color: #2f855a;
    font-size: 1.75rem;
    margin-bottom: 15px;
}
.result-score {
    font-size: 2rem;
    color: #2f855a; /* Dark green for text */
    font-weight: 700;
    margin-bottom: 20px;
}
.download-button {
    display: inline-block;
    padding: 12px 20px;
    margin-top: 20px;
    background-color: #38a169; /* Vibrant green for button */
    color: #fff;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s, transform 0.2s;
}
.download-button:hover {
    background-color: #2f855a; /* Darker green on hover */
    transform: translateY(-2px); /* Slight lift effect */
}
.error-box {
    background-color: #fdecea;
    color: #d32f2f;
    padding: 15px;
    border-radius: 8px;
    border: 2px solid #f5c6cb;
    margin-bottom: 20px;
    text-align: center;
}
.download-button {
    display: inline-block;
    padding: 12px 20px;
    margin-top: 20px;
    background-color: #38a169;
    color: #fff;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
}
.download-button:hover {
    background-color: #2f855a;
}
.space {
    margin-top: 20px;
}


/* Loading Indicator Styling */
#loadingIndicator {
    text-align: center;
    color: #4a90e2;
    font-weight: 600;
    font-size: 1.2rem;
    margin-top: 20px;
}

.hidden {
    display: none;
}

/* Animation for the Dots */
.dot {
    animation: blink 1.5s infinite step-start;
}

.dot:nth-child(1) {
    animation-delay: 0s;
}

.dot:nth-child(2) {
    animation-delay: 0.3s;
}

.dot:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes blink {
    0%, 20%, 100% {
        opacity: 0;
    }
    40%, 60% {
        opacity: 1;
    }
}