:root {
    --primary-color: #5D4037; /* 진한 갈색 */
    --accent-color: #8D6E63;  /* 연한 갈색 */
    --bg-white: #FFFFFF;
    --bg-light: #F5F5F5;
    --text-dark: #333333;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Pretendard', sans-serif; color: var(--text-dark); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* Header */
header { background: #fff; border-bottom: 2px solid var(--primary-color); padding: 1rem 0; position: sticky; top: 0; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo a { font-size: 1.5rem; font-weight: bold; color: var(--primary-color); }
.nav-menu { display: flex; gap: 20px; }

/* Hero Banner */
.hero-section { position: relative; height: 60vh; overflow: hidden; }
.banner-wrapper { height: 100%; }
.slide { position: absolute; width: 100%; height: 100%; opacity: 0; transition: opacity 1s; display: flex; align-items: center; justify-content: center; }
.slide.active { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.7); }
.hero-text { position: absolute; text-align: center; color: #fff; }
.hero-text h2 { font-size: 2.5rem; margin-bottom: 10px; }

/* Section Common - Flex Equal Height */
.content-section { padding: 80px 0; }
.bg-light { background-color: var(--bg-light); }
.flex-row { display: flex; gap: 30px; align-items: stretch; } /* 높이 동일 설정 */
.item { flex: 1; padding: 30px; background: #fff; border: 1px solid #ddd; display: flex; flex-direction: column; justify-content: center; text-align: center; }
.card img { width: 100%; height: 250px; object-fit: cover; margin-bottom: 20px; }

/* Button */
.btn-primary { background: var(--primary-color); color: white; border: none; padding: 12px 30px; cursor: pointer; margin-top: 20px; }

/* Footer */
footer { background: var(--primary-color); color: #fff; padding: 40px 0 20px; font-size: 0.9rem; }
.biz-info { margin-bottom: 20px; line-height: 2; opacity: 0.9; }
.copyright { text-align: center; margin-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; }

/* Top Button */
#topBtn { position: fixed; bottom: 30px; right: 30px; display: none; background: var(--primary-color); color: white; border: none; width: 50px; height: 50px; border-radius: 50%; cursor: pointer; z-index: 99; }

@media (max-width: 768px) {
    .flex-row { flex-direction: column; }
    .hero-text h2 { font-size: 1.8rem; }
}