:root {
    --bg-color: #f0f2f5;
    --container-bg: #fff;
    --text-color: #333;
    --shadow: rgba(0, 0, 0, 0.1);
}

.dark-mode {
    --bg-color: #1a1a1a;
    --container-bg: #2d2d2d;
    --text-color: #f0f2f5;
    --shadow: rgba(0, 0, 0, 0.5);
}

body {
    font-family: sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    background-color: var(--container-bg);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--shadow);
    text-align: center;
    width: 90%;
    max-width: 500px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.weather-widget {
    background: rgba(0, 0, 0, 0.05);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: inline-block;
    transition: 0.3s;
}

.dark-mode .weather-widget {
    background: rgba(255, 255, 255, 0.1);
}

h1 {
    margin: 0;
    font-size: 1.5rem;
}

#theme-toggle {
    background: none;
    border: 1px solid #ccc;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: 0.2s;
}

.numbers-line {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin: 15px 0;
}

.number {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-weight: bold;
    color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

#generate-btn {
    background-color: #4CAF50;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
    width: 100%;
}

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