calculatorStyle.css

/* Light theme styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

#calculator {
    width: 320px;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

#display {
    background-color: var(--display-background-color);
    padding: 20px;
    font-size: 32px;
    text-align: right;
    color: var(--display-text-color);
    border-bottom: 1px solid var(--border-color);
}

#buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 10px;
    padding: 10px;
}

button {
    padding: 20px;
    font-size: 24px;
    cursor: pointer;
    background-color: var(--button-background-color);
    border: none;
    border-radius: 10px;
    transition: background-color 0.3s, transform 0.2s ease-in-out;
    color: var(--button-text-color);
}

button:hover {
    background-color: var(--button-hover-background-color);
    transform: translateY(-3px);
}

.operator {
    color: #ff6d00;
}

#equals,
#clear {
    background-color: #ff6d00;
    color: #fff;
}

#equals:hover,
#clear:hover {
    background-color: #ff4500;
}

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Dark theme styles */
body.dark-theme {
    background-color: #222;
    color: #fff;
}

#display.dark-theme {
    background-color: #333;
    color: #fff;
}

button.dark-theme {
    background-color: #444;
    color: #fff;
}

button.dark-theme:hover {
    background-color: #666;
}

.operator.dark-theme {
    color: #ff6d00;
}

#equals.dark-theme,
#clear.dark-theme {
    background-color: #ff6d00;
    color: #fff;
}

#equals.dark-theme:hover,
#clear.dark-theme:hover {
    background-color: #ff4500;
}
/* Add this CSS to move the buttons */
#back-to-welcome {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 24px;
    background-color: transparent;
    border: none;
    cursor: pointer;
    z-index: 1;
}

#theme-toggle {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    background-color: transparent;
    border: none;
    cursor: pointer;
    z-index: 1;
    border-radius: 50%; /* Make it a circle */
    padding: 10px; /* Increase padding for circle appearance */
}

/* Add tooltip styles for the new buttons */
#back-to-welcome.tooltip .tooltiptext,
#theme-toggle.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 150%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
}

#back-to-welcome.tooltip:hover .tooltiptext,
#theme-toggle.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}