@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;700&display=swap');

:root {
    --bg-color: #1a1a1a;
    --container-bg-color: #2b2b2b;
    --text-color: #fff;
    --primary-color: #ffcc00;
    --secondary-text-color: #ccc;
    --answer-bg-color: #3c3c3c;
    --answer-hover-bg-color: #555;
    --result-bg-color: #3c3c3c;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --primary-shadow-color: #ffcc00;
    --button-text-color: #1a1a1a;
    --button-hover-bg-color: #fff;
    --button-hover-shadow-color: #fff;
}

.light-mode {
    --bg-color: #f0f0f0;
    --container-bg-color: #fff;
    --text-color: #333;
    --primary-color: #007bff;
    --secondary-text-color: #555;
    --answer-bg-color: #f8f9fa;
    --answer-hover-bg-color: #e9ecef;
    --result-bg-color: #f8f9fa;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --primary-shadow-color: #007bff;
    --button-text-color: #fff;
    --button-hover-bg-color: #0056b3;
    --button-hover-shadow-color: #0056b3;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://www.transparenttextures.com/patterns/stardust.png');
    transition: background-color 0.3s, color 0.3s;
}

#container {
    background-color: var(--container-bg-color);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow-color);
    width: 90%;
    max-width: 700px;
    text-align: center;
    transition: background-color 0.3s;
}

header h1 {
    font-size: 2.5em;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-shadow-color), 0 0 20px var(--primary-shadow-color);
    margin-bottom: 10px;
    transition: color 0.3s, text-shadow 0.3s;
}

header p {
    font-size: 1.2em;
    color: var(--secondary-text-color);
    margin-bottom: 30px;
    transition: color 0.3s;
}

.question {
    margin-bottom: 30px;
    text-align: left;
}

.question p {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 20px;
}

.answers label {
    display: block;
    background-color: var(--answer-bg-color);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.answers label:hover {
    background-color: var(--answer-hover-bg-color);
    transform: translateY(-2px);
}

.answers input[type="radio"] {
    display: none;
}

.answers input[type="radio"]:checked + label {
    background-color: var(--primary-color);
    color: var(--button-text-color);
    font-weight: bold;
    box-shadow: 0 0 15px var(--primary-shadow-color);
}

#submit-btn {
    background-color: var(--primary-color);
    color: var(--button-text-color);
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 0 10px var(--primary-shadow-color);
}

#submit-btn:hover {
    background-color: var(--button-hover-bg-color);
    box-shadow: 0 0 20px var(--button-hover-shadow-color);
}

#submit-btn:disabled {
    background-color: #ccc;
    color: #666;
    cursor: not-allowed;
    box-shadow: none;
}

#result-container {
    margin-top: 30px;
    padding: 30px;
    background-color: var(--result-bg-color);
    border-radius: 10px;
    animation: fadeIn 1s;
    transition: background-color 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

#result-container.hidden {
    display: none;
}

#result-container h2 {
    font-size: 2em;
    color: var(--primary-color);
    transition: color 0.3s;
}

#result-container img {
    max-width: 200px;
    border-radius: 10px;
    margin: 20px 0;
    box-shadow: 0 5px 15px var(--shadow-color);
}

#result-container p {
    font-size: 1.2em;
    text-align: left;
    line-height: 1.6;
}

#theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: var(--container-bg-color);
    color: var(--text-color);
    border: 1px solid var(--text-color);
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

#theme-toggle:hover {
    background-color: var(--text-color);
    color: var(--container-bg-color);
}

#restart-btn {
    background-color: var(--primary-color);
    color: var(--button-text-color);
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    margin-top: 20px;
}

#restart-btn:hover {
    background-color: var(--button-hover-bg-color);
    box-shadow: 0 0 20px var(--button-hover-shadow-color);
}

.hidden {
    display: none;
}

/* 반응형 디자인 */
@media (max-width: 600px) {
    #container {
        padding: 20px;
    }

    header h1 {
        font-size: 2em;
    }

    .question p {
        font-size: 1.2em;
    }
}