:root {
    --bg-color: yellow;
    --text-color: #333;
    --container-bg: white;
    --border-color: #ccc;
    --shadow-color: rgba(0,0,0,0.1);
    --input-shadow: rgba(0,0,0,0.05);
    --line-color: #eee;
}

body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #f0f0f0;
    --container-bg: #2d2d2d;
    --border-color: #444;
    --shadow-color: rgba(0,0,0,0.5);
    --input-shadow: rgba(0,0,0,0.2);
    --line-color: #444;
}

body {
    font-family: sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 800px;
    padding: 10px 20px;
    box-sizing: border-box;
}

h1 {
    color: var(--text-color);
    text-shadow: 1px 1px 2px var(--shadow-color);
    margin: 0;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.tab-button {
    background-color: var(--container-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    font-size: 16px;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: background-color 0.3s, color 0.3s;
}

.tab-button.active {
    background-color: #4CAF50;
    color: white;
    border-color: #4CAF50;
}

.tab-content {
    display: none;
    width: 100%;
}

.tab-content.active {
    display: block;
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 20px;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background-color: var(--container-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: background-color 0.3s, box-shadow 0.3s;
}

.players, .outcomes {
    display: flex;
    flex-direction: column;
}

h2 {
    margin-top: 0;
    border-bottom: 2px solid var(--line-color);
    padding-bottom: 10px;
    margin-bottom: 10px;
    color: var(--text-color);
}

input[type="text"] {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 10px;
    box-shadow: inset 0 1px 3px var(--input-shadow);
    background-color: var(--container-bg);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

.buttons {
    display: flex;
    justify-content: space-around;
    padding-top: 10px;
    gap: 10px;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    box-shadow: 0 2px 4px var(--shadow-color);
    transition: background-color 0.3s, transform 0.1s;
}

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

button:active {
    transform: translateY(1px);
    box-shadow: 0 1px 2px var(--shadow-color);
}

#resetButton {
    background-color: #f44336;
}

#resetButton:hover {
    background-color: #e53935;
}

#themeToggle {
    background-color: #2196F3;
}

#themeToggle:hover {
    background-color: #0b7dda;
}

.game-container {
    background-color: var(--container-bg);
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: background-color 0.3s, box-shadow 0.3s;
}

#ladderCanvas {
    display: block;
}

/* Coin Game Styles */
.coin-container {
    flex-direction: column;
    align-items: center;
}

.coin-wrapper {
    perspective: 1000px;
    margin: 40px 0;
}

.coin {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 3s cubic-bezier(0.4, 0.2, 0.2, 1);
}

.coin-face {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    backface-visibility: hidden;
    background-size: cover;
    background-position: center;
    box-shadow: 0 4px 8px var(--shadow-color);
    border: 5px solid #ccc;
    box-sizing: border-box;
}

.coin-front {
    background-image: url('https://img.hankyung.com/photo/202310/AA.34777874.1.jpg');
}

.coin-back {
    background-image: url('https://m.화폐수집.com/web/product/big/202201/6805a24afd37d989ab9e2fd2cd20e34d.png');
    transform: rotateY(180deg);
}

.coin-result {
    font-size: 24px;
    font-weight: bold;
    min-height: 30px;
    margin-top: 20px;
}