@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

body {
    font-family: 'Roboto', sans-serif;
    background-color: #121212;
    color: #e0e0e0;
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.container {
    min-width: 700px;
    min-height: 600px;
    padding: 20px;
    background-color: #1e1e1e;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    text-align: left;
    position: relative;
    z-index: 1; /* Ensure container is above the overlay */
    display: flex;
    flex-direction: column;
}

.tabs {
    display: flex;
    justify-content: flex-start; /* Align tabs to the top left */
    margin-bottom: 20px;
}

.tab-button {
    padding: 10px 20px;
    background-color: #2b2b2b;
    color: white;
    border: none;
    border-radius: 4px 4px 0 0;
    cursor: pointer;
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
    transition: background-color 0.3s;
    margin-right: 5px;
}

.tab-button.active {
    background-color: #bb86fc;
}

.tab-content {
    display: none;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    flex: 1;
}

h1, h2 {
    color: #bb86fc;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
}

.radio-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

input[type="text"] {
    width: calc(100% - 160px);
    padding: 10px;
    border: 1px solid #333;
    border-radius: 4px;
    margin-left: 10px;
    background-color: #2b2b2b;
    color: #e0e0e0;
}

button {
    padding: 10px 20px;
    background-color: #bb86fc;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-family: 'Roboto', sans-serif;
    font-weight: 500;
    transition: background-color 0.3s, transform 0.3s;
}

button:hover {
    background-color: #9b59b6;
    transform: translateY(-2px);
}

#result {
    font-size: 18px;
    font-weight: bold;
    text-align: left;
    color: #e0e0e0;
    word-wrap: break-word;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    display: none;
    z-index: 2; /* Ensure overlay is above all other content */
}

.overlay-content {
    background-color: #2b2b2b;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

#loadingIndicator {
    font-size: 24px;
    color: #bb86fc;
}

.calculateButton-container {
    display: flex;
    justify-content: flex-end;
    margin-top: auto;
}

.math-preview {
    margin-top: 10px;
    background-color: #2b2b2b;
    padding: 10px;
    border-radius: 4px;
    color: #e0e0e0;
    word-wrap: break-word;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}