@import url('https://fonts.googleapis.com/css2?family=Nanum+Gothic&display=swap');

body {
    font-family: 'Nanum Gothic', sans-serif;
    background-color: #f0f0f0;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: white;
    padding: 2em;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    text-align: center;
    width: 90%;
    max-width: 500px;
}

h1 {
    font-size: 1.8em;
    color: #2c3e50;
    margin-bottom: 0.5em;
}

h2 {
    font-size: 1.5em;
    color: #2980b9;
}

p {
    font-size: 1.1em;
    line-height: 1.6;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
    margin-top: 1em;
}

button:hover {
    background-color: #2980b9;
}

#retry-btn {
    background-color: #95a5a6;
}

#retry-btn:hover {
    background-color: #7f8c8d;
}

.answer-btn {
    display: block;
    margin-bottom: 10px;
}

.progress-bar {
    width: 100%;
    background-color: #ecf0f1;
    border-radius: 5px;
    margin-bottom: 2em;
}

.progress {
    width: 0%;
    height: 10px;
    background-color: #3498db;
    border-radius: 5px;
    transition: width 0.5s;
}

#result-description {
    white-space: pre-wrap;
    text-align: left;
    background-color: #ecf0f1;
    padding: 1em;
    border-radius: 10px;
}