/* ==========================================
   루나소나타 피아노 스튜디오 홈(메인) 페이지 스타일
========================================== */

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

.luna-wrapper {
  font-family: 'Noto Sans KR', sans-serif;
  color: #333;
  line-height: 1.8;
  letter-spacing: -0.5px;
  margin: 0 auto;
  max-width: 1200px;
}

.serif-text {
  font-family: 'Noto Serif KR', serif;
}

/* 공통 버튼 스타일 */
.luna-btn {
  display: inline-block;
  padding: 12px 35px;
  background-color: #1a2536;
  color: #fff !important;
  text-decoration: none !important;
  border-radius: 4px;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 15px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.luna-btn:hover {
  background-color: #34495e;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* Section 1: 메인 히어로 배너 (Hero Section) */
.luna-hero {
  position: relative;
  padding: 140px 20px;
  text-align: center;
  background: linear-gradient(135deg, #111b29 0%, #2c3e50 100%);
  color: #fff;
  border-radius: 8px;
  margin-bottom: 60px;
  overflow: hidden;
}
.luna-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('https://images.unsplash.com/photo-1520523839897-bd0b52f945a0?auto=format&fit=crop&w=1920&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 1;
}
.luna-hero-content {
  position: relative;
  z-index: 2;
}
.luna-hero h1 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #f3f4f6;
  letter-spacing: -1px;
}
.luna-hero p {
  font-size: 18px;
  font-weight: 300;
  margin-bottom: 35px;
  color: #cbd5e1;
}

/* Section 2: 핵심 특장점 (Features Section) */
.luna-section-title {
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 45px;
  color: #1a2536;
  position: relative;
  padding-bottom: 15px;
}
.luna-section-title::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 50px; height: 3px;
  background-color: #2c3e50;
}

.luna-features {
  display: flex;
  justify-content: space-between;
  gap: 25px;
  margin-bottom: 80px;
  padding: 0 10px;
}
.luna-feature-card {
  flex: 1;
  background: #fdfdfd;
  border: 1px solid #eaeaea;
  border-radius: 6px;
  padding: 40px 30px;
  text-align: center;
  transition: all 0.3s ease;
}
.luna-feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
  border-color: #cbd5e1;
}
.luna-feature-icon {
  font-size: 35px;
  margin-bottom: 15px;
  display: inline-block;
}
.luna-feature-card h3 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 15px;
  color: #111b29;
}
.luna-feature-card p {
  font-size: 15px;
  color: #666;
  margin: 0;
}

/* Section 3: 강사 소개 간략 배너 (About Preview) */
.luna-about-preview {
  display: flex;
  align-items: center;
  gap: 50px;
  background: #f8fafc;
  padding: 50px;
  border-radius: 8px;
  margin-bottom: 80px;
}
.luna-about-img {
  flex: 1;
  text-align: center;
}
.luna-about-img img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
}
.luna-about-text {
  flex: 1.2;
}
.luna-about-text h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 20px;
  color: #1a2536;
}
.luna-about-text p {
  font-size: 16px;
  color: #4b5563;
  margin-bottom: 25px;
}

/* 반응형 모바일 레이아웃 설정 */
@media (max-width: 768px) {
  .luna-hero { padding: 90px 20px; }
  .luna-hero h1 { font-size: 28px; }
  .luna-hero p { font-size: 15px; }
  .luna-features { flex-direction: column; gap: 20px; }
  .luna-about-preview { flex-direction: column; padding: 30px 20px; gap: 30px; }
  .luna-section-title { font-size: 24px; }
}