* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft JhengHei", sans-serif;
    background-color: #f0f2f5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 600px;
    width: 90%;
}

h1 {
    color: #333;
    margin-bottom: 2rem;
}

.emoji-display {
    margin: 2rem 0;
}

#emoji-puzzle {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hint {
    color: #666;
    font-size: 0.9rem;
}

.input-area {
    margin: 2rem 0;
}

input[type="text"] {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    width: 200px;
    margin-right: 1rem;
}

button {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

#next-btn {
    background-color: #2196F3;
}

#next-btn:hover {
    background-color: #1976D2;
}

.score-area {
    margin-top: 2rem;
    font-size: 1.2rem;
}

.character-buttons {
    margin: 1rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    max-width: 600px;
}

.char-btn {
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    background-color: #4a5568;
    color: white;
    border: 1px solid #2d3748;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
    margin: 0.25rem;
}

.char-btn:hover {
    background-color: #2d3748;
}

.char-btn.used {
    background-color: #718096;
    cursor: not-allowed;
    opacity: 0.5;
}

.answer-display {
    margin: 1rem 0;
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

#answer-box {
    min-height: 2.5rem;
    min-width: 200px;
    border: 2px solid #ddd;
    border-radius: 5px;
    padding: 0.5rem;
    font-size: 1.2rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

#clear-btn {
    background-color: #dc3545;
}

#clear-btn:hover {
    background-color: #c82333;
}