style.css

/* Common styles */
.app {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Light mode */
.app.light-mode {
    background-color: #ffffff;
    color: #000000;
}

.app.light-mode h1 {
    color: #1da1f2;
}

.app.light-mode p {
    color: #333333;
}

.app.light-mode input {
    background-color: #ffffff;
    color: #333333;
    border: 1px solid #cccccc;
}

.app.light-mode .toggle-mode-btn {
    background-color: #1da1f2;
    color: #ffffff;
}

/* Dark mode */
.app.dark-mode {
    background-color: #121212;
    color: #ffffff;
}

.app.dark-mode h1 {
    color: #1da1f2;
}

.app.dark-mode p {
    color: #cccccc;
}

.app.dark-mode input {
    background-color: #333333;
    color: #ffffff;
    border: 1px solid #666666;
}

.app.dark-mode .toggle-mode-btn {
    background-color: #1da1f2;
    color: #ffffff;
}

/* Button styles */
.app .toggle-mode-btn {
    background-color: #1da1f2;
    color: #ffffff;
    border: none;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.app .toggle-mode-btn:hover {
    background-color: #0e76a8;
}

.app .toggle-mode-btn:focus {
    outline: none;
}

.app.light-mode .toggle-mode-btn {
    background-color: #1da1f2;
}

.app.dark-mode .toggle-mode-btn {
    background-color: #ffffff;
    color: #1da1f2;
    border: 2px solid #1da1f2;
}

/* Input styles */
.app input[type="text"] {
    padding: 10px;
    border-radius: 5px;
    border: 1px solid #cccccc;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.app input[type="text"]:focus {
    outline: none;
    border-color: #1da1f2;
}

.app.light-mode input[type="text"] {
    background-color: #ffffff;
    color: #333333;
}

.app.dark-mode input[type="text"] {
    background-color: #333333;
    color: #ffffff;
    border-color: #666666;
}