/* teeth_whitening.css - 치아미백 페이지 */

/* --------------------- teeth_whitening header */

#teeth_whitening_header {
  position: relative;
  width: 100%;
  height: 920px;
  overflow: hidden;
}

#teeth_whitening_header .hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

#teeth_whitening_header .hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

#teeth_whitening_header .hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  z-index: 2;
}

#teeth_whitening_header .container {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#teeth_whitening_header .wrapper {
  width: 100%;
}

#teeth_whitening_header .hero-content {
  text-align: center;
  color: #fff;
}

#teeth_whitening_header .hero-content h1 {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: 15px;
  line-height: 1.2;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

#teeth_whitening_header .hero-content .subtitle {
  font-size: var(--text-md);
  font-weight: var(--font-normal);
  letter-spacing: 2px;
  opacity: 0.95;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}

/* --------------------- teeth_whitening section 01 */

#teeth_whitening_section_1 {
  background: #f5f5f5;
  padding: 90px 0;
}

#teeth_whitening_section_1 .container .wrapper {
  max-width: 1200px;
  margin: 0 auto;
}

#teeth_whitening_section_1 .section-content {
  text-align: center;
}

#teeth_whitening_section_1 .section-content h2 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: #333;
  margin-bottom: 50px;
  line-height: 1.4;
}

#teeth_whitening_section_1 .description {
  margin-bottom: 60px;
}

#teeth_whitening_section_1 .description p {
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  color: #333;
  line-height: 1.8;
  margin-bottom: 8px;
}

#teeth_whitening_section_1 .image-wrapper {
  max-width: 700px;
  margin: 0 auto;
}

#teeth_whitening_section_1 .image-wrapper img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* --------------------- teeth_whitening section 02 */

#teeth_whitening_section_2 {
  background: #ffffff;
  padding: 90px 0;
}

#teeth_whitening_section_2 .container .wrapper {
  max-width: 1400px;
  margin: 0 auto;
}

#teeth_whitening_section_2 h2 {
  text-align: center;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: #333;
  margin-bottom: 60px;
  line-height: 1.4;
}

#teeth_whitening_section_2 .cards-wrapper {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 20px;
  flex-wrap: wrap;
}

#teeth_whitening_section_2 .whitening-card {
  flex: 1;
  min-width: 280px;
  max-width: 320px;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#teeth_whitening_section_2 .whitening-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

#teeth_whitening_section_2 .card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
}

#teeth_whitening_section_2 .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

#teeth_whitening_section_2 .card-content {
  background: #3d3d3d;
  padding: 30px 25px;
  text-align: center;
}

#teeth_whitening_section_2 .card-number {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

#teeth_whitening_section_2 .card-text {
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  color: #fff;
  line-height: 1.6;
  margin: 0;
}

/* --------------------- teeth_whitening section 03 */

#teeth_whitening_section_3 {
  background: #f9f9f9;
  padding: 90px 0;
}

#teeth_whitening_section_3 .container .wrapper {
  max-width: 1400px;
  margin: 0 auto;
}

#teeth_whitening_section_3 h2 {
  text-align: center;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: #333;
  margin-bottom: 60px;
  line-height: 1.4;
}

#teeth_whitening_section_3 .before-after-wrapper {
  max-width: 1200px;
  margin: 0 auto 30px;
}

#teeth_whitening_section_3 .before-after-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

#teeth_whitening_section_3 .notice-text {
  text-align: center;
  font-size: var(--text-xs);
  font-weight: var(--font-normal);
  color: #666;
  margin: 0;
  line-height: 1.6;
}

/* =====================================================
   모바일 반응형 스타일
   ===================================================== */

/* --------------------- 태블릿 (768px 이하) */
@media screen and (max-width: 768px) {
  /* Header - 히어로 섹션 */
  #teeth_whitening_header {
    height: 450px;
  }
  #teeth_whitening_header .hero-content h1 {
    font-size: var(--text-lg);
  }
  #teeth_whitening_header .hero-content .subtitle {
    font-size: var(--text-sm);
    letter-spacing: 1px;
  }

  /* Section 1 - 엠치과만의 치아미백 */
  #teeth_whitening_section_1 {
    padding: 60px 0;
  }
  #teeth_whitening_section_1 .container .wrapper {
    padding: 0 24px;
  }
  #teeth_whitening_section_1 .section-content h2 {
    font-size: var(--text-md);
    margin-bottom: 30px;
  }
  #teeth_whitening_section_1 .description {
    margin-bottom: 40px;
  }
  #teeth_whitening_section_1 .description p {
    font-size: var(--text-sm);
    line-height: 1.8;
  }
  #teeth_whitening_section_1 .image-wrapper {
    padding: 0 20px;
  }
  #teeth_whitening_section_1 .image-wrapper img {
    border-radius: 16px;
  }

  /* Section 2 - 치아미백 대상 (2열 그리드) */
  #teeth_whitening_section_2 {
    padding: 60px 0;
  }
  #teeth_whitening_section_2 .container .wrapper {
    padding: 0 24px;
  }
  #teeth_whitening_section_2 h2 {
    font-size: var(--text-md);
    margin-bottom: 40px;
  }
  #teeth_whitening_section_2 .cards-wrapper {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  #teeth_whitening_section_2 .whitening-card {
    min-width: unset;
    max-width: 100%;
    border-radius: 12px;
  }
  #teeth_whitening_section_2 .card-image {
    height: 140px;
  }
  #teeth_whitening_section_2 .card-content {
    padding: 16px 14px;
  }
  #teeth_whitening_section_2 .card-number {
    font-size: var(--text-xs);
    margin-bottom: 8px;
  }
  #teeth_whitening_section_2 .card-text {
    font-size: var(--text-xs);
    line-height: 1.5;
  }

  /* Section 3 - 전후사진 */
  #teeth_whitening_section_3 {
    padding: 60px 0;
  }
  #teeth_whitening_section_3 .container .wrapper {
    padding: 0 24px;
  }
  #teeth_whitening_section_3 h2 {
    font-size: var(--text-md);
    margin-bottom: 40px;
  }
  #teeth_whitening_section_3 .before-after-wrapper {
    margin-bottom: 20px;
  }
  #teeth_whitening_section_3 .notice-text {
    font-size: var(--text-xs);
  }
}

/* --------------------- 모바일 (480px 이하) */
@media screen and (max-width: 480px) {
  /* Header */
  #teeth_whitening_header {
    height: 380px;
  }
  #teeth_whitening_header .hero-content h1 {
    font-size: var(--text-md);
  }
  #teeth_whitening_header .hero-content .subtitle {
    font-size: var(--text-xs);
  }

  /* Section 1 */
  #teeth_whitening_section_1 {
    padding: 50px 0;
  }
  #teeth_whitening_section_1 .container .wrapper {
    padding: 0 16px;
  }
  #teeth_whitening_section_1 .section-content h2 {
    font-size: var(--text-md);
    margin-bottom: 24px;
  }
  #teeth_whitening_section_1 .description {
    margin-bottom: 30px;
  }
  #teeth_whitening_section_1 .description p {
    font-size: var(--text-xs);
    line-height: 1.75;
  }
  #teeth_whitening_section_1 .image-wrapper {
    padding: 0;
  }
  #teeth_whitening_section_1 .image-wrapper img {
    border-radius: 12px;
  }

  /* Section 2 (2열 그리드) */
  #teeth_whitening_section_2 {
    padding: 50px 0;
  }
  #teeth_whitening_section_2 .container .wrapper {
    padding: 0 16px;
  }
  #teeth_whitening_section_2 h2 {
    font-size: var(--text-md);
    margin-bottom: 30px;
  }
  #teeth_whitening_section_2 .cards-wrapper {
    gap: 12px;
  }
  #teeth_whitening_section_2 .whitening-card {
    border-radius: 10px;
  }
  #teeth_whitening_section_2 .card-image {
    height: 100px;
  }
  #teeth_whitening_section_2 .card-content {
    padding: 12px 10px;
  }
  #teeth_whitening_section_2 .card-number {
    font-size: var(--text-xs);
    margin-bottom: 6px;
  }
  #teeth_whitening_section_2 .card-text {
    font-size: var(--text-xs);
    line-height: 1.4;
  }
  #teeth_whitening_section_2 .card-text br {
    display: none;
  }

  /* Section 3 */
  #teeth_whitening_section_3 {
    padding: 50px 0;
  }
  #teeth_whitening_section_3 .container .wrapper {
    padding: 0 16px;
  }
  #teeth_whitening_section_3 h2 {
    font-size: var(--text-md);
    margin-bottom: 30px;
  }
  #teeth_whitening_section_3 .before-after-wrapper {
    margin-bottom: 16px;
  }
  #teeth_whitening_section_3 .notice-text {
    font-size: var(--text-xs);
  }
}