:root {
    --primary-color: #4a90e2;
    --secondary-color: #2c3e50;
    --background-color: #f5f6fa;
    --text-color: #2c3e50;
    --border-color: #dcdde1;
}

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

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    border-bottom: 2px solid var(--border-color);
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.verse-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.verse-korean {
    margin-bottom: 1.5rem;
}

.verse-korean h2 {
    font-size: 1.8rem;
    line-height: 1.4;
    color: var(--secondary-color);
}

.verse-english {
    font-size: 1.2rem;
    color: var(--primary-color);
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
}

.explanation-section,
.interpretation-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.videos-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.video-container {
    background: white;
    padding: 1rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--secondary-color);
    border-top: 2px solid var(--border-color);
}

.links-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.link-card {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.link-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.link-card p {
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin: 0;
}

.contact-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
    text-align: center;
}

.contact-section p {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.contact-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.2s;
}

.contact-button:hover {
    background-color: #357abd;
}

@media (max-width: 768px) {
    .videos-section {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .verse-korean h2 {
        font-size: 1.5rem;
    }
}