@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

body {
    font-family: 'Noto Sans KR', Arial, sans-serif;
    background-color: #FFF9C4;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23FFB300' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"),
    linear-gradient(to bottom, #FFF9C4, #FFECB3);
    background-attachment: fixed;
    color: #000000;
    line-height: 1.7;
    padding: 20px;
    margin: 0;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    background-color: #FFFFFF;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    position: relative;
    border: 1px solid rgba(255, 179, 0, 0.2);
}

/* Traditional Korean border design */
.container::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px solid rgba(255, 179, 0, 0.1);
    border-radius: 8px;
    pointer-events: none;
}

h2, h3, h4 {
    color: #000000;
    font-weight: 500;
}

h2 {
    font-size: 1.9rem;
    margin-bottom: 30px;
    border-bottom: 2px solid #FFE082;
    padding-bottom: 10px;
    padding-right: 110px; /* Make room for logout button */
}

#title {
    position: relative;
    z-index: 1;
}

p {
    color: #000000;
    text-align: left;
    word-break: keep-all;
    overflow-wrap: break-word;
    font-size: 16px;
    margin-bottom: 15px;
    letter-spacing: -0.02em;
}

input, button, textarea {
    margin: 10px 0;
    padding: 12px;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    width: 100%;
    font-family: inherit;
    box-sizing: border-box;
    background-color: #FFFFFF;
    color: #000000;
    transition: all 0.2s ease;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #FFB300;
    box-shadow: 0 0 0 2px rgba(255, 179, 0, 0.2);
}

button {
    background-color: #FFD54F;
    color: #000000;
    border: none;
    cursor: pointer;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

button:hover {
    background-color: #FFCA28;
    transform: translateY(-1px);
}

button:disabled {
    background-color: #E0E0E0;
    color: #9E9E9E;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

#logout-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    z-index: 10;
    background-color: #9E9E9E;
    color: white;
    padding: 8px 15px;
    width: auto;
    border-radius: 6px;
    transition: all 0.2s ease;
}

#logout-btn:hover {
    background-color: #757575;
}

.hidden {
    display: none !important;
}

/* Section styling */
.section {
    border-bottom: 1px solid #EEEEEE;
    padding-bottom: 25px;
    margin-bottom: 25px;
    transition: all 0.3s ease;
}

.section h3 {
    background-color: #FFF8E1;
    padding: 14px 18px;
    border-radius: 8px;
    margin: 0 0 18px 0;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 4px solid #FFD54F;
}

.section h3:hover {
    background-color: #FFECB3;
}

.section h3::after {
    content: "▼";
    position: absolute;
    right: 15px;
    color: #FFA000;
    transition: transform 0.3s ease;
}

.section.collapsed h3::after {
    content: "▶";
}

.section.collapsed > *:not(h3) {
    display: none;
}

.section h4 {
    font-size: 1.2rem;
    margin-top: 25px;
    margin-bottom: 15px;
    color: #424242;
    border-bottom: 1px solid #FFE082;
    padding-bottom: 8px;
    display: inline-block;
}

/* Quiz styling with traditional Korean color palette */
.quiz-question {
    background-color: #FFFDE7;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-left: 3px solid #FFD54F;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.quiz-options {
    padding-left: 15px;
    margin-top: 12px;
}

.quiz-options p {
    background-color: #FFF8E1;
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 8px;
    border: 1px solid #FFE082;
}

textarea.question {
    min-height: 120px;
    resize: vertical;
    font-size: 15px;
    line-height: 1.6;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.next-btn {
    max-width: 200px;
    margin: 20px auto 10px auto;
    display: block;
    padding: 14px;
    font-weight: 500;
    letter-spacing: 0.03em;
}

/* Login styling with Korean-inspired design */
#loginContainer {
    text-align: center;
    max-width: 400px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.95);
    margin: 50px auto;
    border: 1px solid rgba(255, 179, 0, 0.3);
    position: relative;
}

#loginContainer::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px solid rgba(255, 179, 0, 0.1);
    border-radius: 8px;
    pointer-events: none;
}

#loginContainer::after {
    content: "";
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background-color: #FFF9C4;
    border: 1px solid rgba(255, 179, 0, 0.3);
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

#loginContainer h2 {
    margin-bottom: 30px;
    color: #424242;
    border-bottom: none;
}

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

#loginContainer button {
    margin-top: 10px;
    font-size: 16px;
    padding: 14px;
}

/* Mobile optimization */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 20px;
        margin: 10px auto;
    }
    
    #logout-btn {
        top: 20px;
        right: 20px;
    }
}

/* Smooth transitions */
* {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Add smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Strong text styling */
strong {
    font-weight: 500;
    color: #000000;
}

/* Traditional Korean decorative elements */
#appContainer::after {
    content: "";
    position: absolute;
    top: 16px;
    left: 16px;
    width: 20px;
    height: 20px;
    background-color: #FFF9C4;
    border: 1px solid rgba(255, 179, 0, 0.3);
    border-radius: 50%;
    z-index: 2;
}

/* Footer decoration inspired by Korean patterns */
.section:last-child::after {
    content: "";
    display: block;
    width: 60px;
    height: 5px;
    background: linear-gradient(90deg, #FFD54F, transparent);
    margin: 25px auto 0;
    border-radius: 5px;
}