Webleb - UI Elements - Modern Dark Mode Toggle Switch

HTML

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Modern Dark Mode Toggle Switch mit Sonne und Mond</title>
    <meta name="keywords" content="Dark Mode, Toggle, Switch, Sonne, Mond, Sun, Moon, CSS, JavaScript, HTML, FlatIcon, Theme, Light Mode, Webdesign, UI, UX, Toggle Button, Darkmode Umschalter">
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h2>Toggle Dark Mode</h2>
    <div class="toggle-container">
        <label class="toggle-switch">
            <input type="checkbox" id="toggle-darkmode" aria-label="Toggle dark mode">
            <span class="slider">
                
                <span class="icon sun">
                    <svg width="20" height="20" viewBox="0 0 24 24" fill="none">
                        <circle cx="12" cy="12" r="5" fill="#f7c948"/>
                        <g stroke="#f7c948" stroke-width="2">
                            <line x1="12" y1="2" x2="12" y2="5"/>
                            <line x1="12" y1="19" x2="12" y2="22"/>
                            <line x1="2" y1="12" x2="5" y2="12"/>
                            <line x1="19" y1="12" x2="22" y2="12"/>
                            <line x1="4.22" y1="4.22" x2="6.34" y2="6.34"/>
                            <line x1="17.66" y1="17.66" x2="19.78" y2="19.78"/>
                            <line x1="4.22" y1="19.78" x2="6.34" y2="17.66"/>
                            <line x1="17.66" y1="6.34" x2="19.78" y2="4.22"/>
                        </g>
                    </svg>
                </span>
                
                <span class="icon moon">
                    <svg width="20" height="20" viewBox="0 0 24 24" fill="none">
                        <path d="M21 12.79A9 9 0 0 1 12.79 3c-.55 0-.67.72-.19.96A7 7 0 1 0 20.04 13c.24.48-.41.74-.74.21z" fill="#a3bffa"/>
                    </svg>
                </span>
            </span>
        </label>
        <span id="toggle-label">Light Mode</span>
    </div>
    <script src="script.js"></script>
</body>
</html>

CSS

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #f0f0f0;          
    color: #333;
    transition: background-color 0.4s cubic-bezier(.4,0,.2,1), color 0.4s cubic-bezier(.4,0,.2,1);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.dark-mode {
    background-color: #181824;
    color: #f0f0f0;
}
.toggle-container {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.toggle-switch {
    position: relative;
    width: 60px;
    height: 32px;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: #bfc9d1;
    border-radius: 32px;
    transition: background 0.4s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 4px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.4s cubic-bezier(.4,0,.2,1), background 0.4s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
}
.toggle-switch input:checked + .slider {
    background: #222b45;
}
.toggle-switch input:checked + .slider:before {
    transform: translateX(28px);
    background: #222b45;
}
/* Sun & Moon icons inside the toggle */
.slider .icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    transition: opacity 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 24px;
}
.slider .icon.sun {
    left: 4px;
    color: #f7c948;
}
.slider .icon.moon {
    right: 4px;
    color: #a3bffa;
}
.toggle-switch input:checked + .slider .icon.sun {
    opacity: 0.3;
}
.toggle-switch input:checked + .slider .icon.moon {
    opacity: 1;
}
.toggle-switch input:not(:checked) + .slider .icon.sun {
    opacity: 1;
}
.toggle-switch input:not(:checked) + .slider .icon.moon {
    opacity: 0.3;
}
/* Responsive */
@media (max-width: 600px) {
    .toggle-container {
        flex-direction: column;
        gap: 0.5rem;
    }
}

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