body {
    font-family: sans-serif;
    background-color: #f0f2f5;
    color: #333;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 3rem 1rem 2rem;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s;
}

body.dark {
    background-color: #1a1a2e;
    color: #e0e0e0;
}

body.dark .container {
    background-color: #16213e;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
}

body.dark #generate-button {
    background-color: #2e7d32;
}

body.dark #generate-button:hover {
    background-color: #388e3c;
}

body.dark .number {
    background-color: #2a2a4a;
    color: #e0e0e0;
}

#theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background: none;
    border: 2px solid currentColor;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.2s;
    z-index: 100;
}

#theme-toggle:hover {
    transform: scale(1.1);
}

.container {
    width: 100%;
    max-width: 700px;
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: background-color 0.3s, box-shadow 0.3s;
}

h1 {
    margin-bottom: 1.5rem;
}

.controls {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

#generate-button {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
}

#generate-button:hover {
    background-color: #45a049;
}

.number-set {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 1rem;
}

.number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #eee;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.bonus {
    background-color: #ffeb3b;
}

.disqus-wrapper {
    width: 100%;
    max-width: 700px;
    margin-top: 2rem;
    box-sizing: border-box;
}