:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --btn-bg: rgb(183, 255, 111);
    --btn-hover: rgb(137, 221, 10);
    --container-bg: #f5f5f5;
    --border-color: #ddd;
}

/* Dark theme variables */
[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --btn-bg: rgb(100, 150, 60);
    --btn-hover: rgb(80, 130, 40);
    --container-bg: #2a2a2a;
    --border-color: #444;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    margin: 0;
    padding: 20px;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: Arial, sans-serif;
}

.container {
    background-color: var(--container-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    max-width: 500px;
    width: 90%;
    text-align: center;
}

#count {
    display: block;
    font-family: Verdana;
    text-align: center;
    font-size: 4em;
    margin: 20px 0;
}

#btns {
    text-align: center;
    margin-bottom: 20px;
}

.allbtns {
    padding: 10px 20px;
    font-size: 1em;
    background-color: var(--btn-bg);
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.5s;
    border: none;
    margin: 0 5px;
}

.allbtns:hover {
    background-color: var(--btn-hover);
}

.theme-switcher {
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.theme-btn {
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    background-color: var(--container-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    transition: all 0.3s;
}

.theme-btn.active {
    background-color: var(--btn-bg);
    font-weight: bold;
}

.theme-btn:hover {
    background-color: var(--btn-hover);
}

h1 {
    margin-top: 0;
    color: var(--text-color);
}