/* ================================
   Global Base
================================ */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #fff;
  color: #222;
  font-family: "Pretendard", "Inter", "Noto Sans KR", sans-serif;
  line-height: 1.6;
}


h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: #111;
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: #7e9260;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: #7e9260;
}

h3 {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: #333;
}

p {
  font-size: 1rem;
  color: #444;
  margin-bottom: 1rem;
}

a {
  color: #7e9260;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #5d7148;
}

@media (max-width: 900px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1.2rem; }
  p { font-size: 0.95rem; }
}

/* ================================
   Header
================================ */

.site-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 100;
}



.logo img {
    height: 40px; /* 원하는 높이로 조정 */
    width: auto;
    display: block;
}

.contact-btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: #7e9260;
  color: #fff;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s ease;
}

.contact-btn:hover {
  background: #67804f;
}

/* ================================
   Hero Section
================================ */

.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
  background: rgba(255, 255, 255, 10);
  color: #7e9260;
  text-align: center;
  padding: 0 1rem;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.hero-content img {
  max-width: 250px;
  height: auto;
  margin-bottom: 0.4rem;
  transition: transform 0.3s ease;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #7e9260;
  color: #fff;
  text-decoration: none;
  border-radius: 0.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero-content img.scrolled {
  transform: scale(1.2);
  transform: rotate('20');
}



.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: #7e9260;
  color: #fff;
  text-decoration: none;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #6a7d52;
  transform: translateY(-2px);
}

/* 모바일 반응형 */
@media (max-width: 768px) {
  .hero-content img {
    max-width: 200px; 
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-content img {
    max-width: 150px;
  }
  
  .hero-content h1 {
    font-size: 1.5rem;
  }
}

/* ================================
   Common Section Container
================================ */

.section-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4rem 2rem;
  width: 100%;
}

/* ================================
   Consulting Section
================================ */

.consulting-section {
  background: #f9f7f1;
}

.consulting-section .section-container {
  text-align: center;
}

.consulting-grid {
  display: flex;
  justify-content: center;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 2em;
}

.consult-card {
  flex: 1 1 280px;
  min-width: 280px;
  max-width: 320px;
  background: #fffdfa;
  border: 1px solid #ddd;
  border-radius: 1rem;
  padding: 2rem 1.2rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
}

.consult-card:hover {
  transform: translateY(-4px);
}

.consult-card h3 {
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin: 1rem 0 0.5rem;
  color: #111;
}

.icon svg {
  width: 48px;
  height: 48px;
  fill: #7e9260; /* 아이콘 색상 */
  margin-bottom: 0.75rem;
  transition: transform 0.2s ease;
}

.consult-card:hover .icon svg {
  transform: scale(1.1);
}

#carbon-calculator {
  background: #ffffff;
  padding: 4rem 0;
}

#carbon-calculator .section-container {
  padding-left: 2rem;
  padding-right: 2rem;
}

.calc-container {
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 2.5rem;
  max-width: 800px;
  padding-top: 1rem;
  margin: 0 auto;
}

.calc-left {
  width: 100%;
  max-width: 600px;
  text-align: left; 
  margin: 0 auto;
}

.calc-left h2 {
  text-align: center;
  color: #7e9260;
  margin-bottom: 2rem;
}

.calc-control label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #333;
}

/* 슬라이더 */
.calc-control input[type="range"] {
  width: 100%;
  accent-color: #7e9260;
  height: 12px;
  border-radius: 3px;
  cursor: pointer;
}

/* 체크박스 */
.calc-options {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column; /* 위아래 배치 */
  align-items: flex-start; /* 왼쪽 정렬 */
  gap: 0.75rem;
}

.calc-options label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  color: #333;
  font-weight: 500;
}

.calc-options input[type="checkbox"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid #7e9260;
  border-radius: 4px;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
}

.calc-options input[type="checkbox"]:checked {
  background-color: #7e9260;
  border-color: #7e9260;
}

.calc-options input[type="checkbox"]:checked::after {
  content: "✔";
  color: white;
  font-size: 14px;
  position: absolute;
  top: 0.5px;
  left: 3px;
}

/* 버튼 */
.calc-toggle {
  margin-top: 1.5rem;
  display: flex;
  justify-content: flex-start; /* 왼쪽 정렬 */
  gap: 1rem;
}

.calc-toggle button {
  border: 2px solid #7e9260;
  background: transparent;
  color: #7e9260;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  min-width: 120px;
  text-align: center;
  transition: background 0.2s ease, color 0.2s ease;
}

.calc-toggle button.active {
  background: #7e9260;
  color: white;
  border: none;
}

/* 결과 */
.calc-results {
  width: 100%;
  max-width: 600px;
  background: #fbfffb;
  border-radius: 1rem;
  padding: 3rem;
  text-align: center;
}

.calc-results h2 {
  color: #7e9260;
  margin-bottom: 2rem;
}

.calc-results p {
  font-size: 1rem;
  color: #333;
  margin-bottom: 0.5rem;
}

/* 반응형 */
@media (max-width: 900px) {
  .calc-container {
    gap: 2rem;
    padding: 0 1rem;
  }
  .calc-results, .calc-left {
    width: 100%;
  }

  .calc-left h2 {
  text-align: center;
  color: #7e9260;
  margin-bottom: 2rem;
}

  .calc-results h2 {
  color: #7e9260;
  margin-bottom: 2rem;
}
}

/* ================================
   Q&A Section
================================ */
/* ================================
   Q&A Section
================================ */
.qna-section {
  background:  #f9f7f1;
}

.qna-section .section-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 3rem;
  padding: 4rem 2rem;
  max-width: 1120px;
  margin: 0 auto;
}

/* 왼쪽 소개 텍스트 */
.qna-intro {
  flex: 1 1 300px;
  min-width: 300px;
  text-align: left;
}

/* 오른쪽 질문 리스트 */
.qna-list {
  flex: 2 1 450px;
  max-width: 600px;
  margin-top: 0;
}

.qna-list details {
  border-bottom: 1px solid #ccc;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  transition: all 0.2s ease;
}

.qna-list summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: #111;
  font-size: 1rem;
  padding: 1rem 0;
  transition: color 0.2s ease;
}

.qna-list summary:hover {
  color: #7e9260;
}

/* 삼각형 아이콘 */
.qna-list summary .arrow::before {
  content: "▶";
  display: inline-block;
  margin-left: 8px;
  font-size: 0.8rem;
  color: #7e9260;
  transition: transform 0.2s ease;
}

/* 열릴 때 회전 */
.qna-list details[open] summary .arrow::before {
  transform: rotate(90deg);
}

.qna-list .answer {
  margin: 0;
  padding: 0;
}

.qna-list p {
  margin: 0.75rem 0 0.5rem;
  padding-left: 0.25rem;
  color: #333;
  font-size: 0.95rem;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .qna-section .section-container {
    flex-direction: column; 
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem 1.25rem;
  }

  .qna-intro {
    width: 100%;
    min-width: unset; /* 또는 auto - 데스크톱 min-width 제거 */
    flex: none; /* flex 속성 제거 */
    margin-bottom: 0;
  }

  .qna-list {
    width: 100%;
    flex: none; /* flex 속성 제거 */
    max-width: none; /* 600px 제한 제거 */
    margin-top: 0;
  }

  .qna-list details {
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
  }

  .qna-list details:last-child {
    margin-bottom: 0;
  }

  .qna-list summary {
    padding: 0.75rem 0;
    font-size: 0.95rem;
  }

  .qna-list p {
    font-size: 0.9rem;
    margin: 0.5rem 0 0;
  }
}


/* ================================
   Footer
================================ */

footer {
  text-align: center;
  padding: 1rem;
  background: #343330;
  color: rgb(255, 247, 247);
  font-size: 0.9rem;
}

/* ================================
   Responsive Adjustments
================================ */

@media (max-width: 900px) {
  .consulting-grid {
    gap: 1.5rem;
  }

  .qna-section .section-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }

  .qna-list, .qna-intro {
    max-width: 100%;
    padding-left: 0;
  }

  #carbon-calculator .section-container {
    flex-direction: column;
    align-items: center;
  }

  .calc-left, .calc-right {
    width: 100%;
    text-align: left;
  }

  .calc-right {
    margin-top: 1.5rem;
  }
}
/* ================================
   Value Proposition Two-Column Layout
================================ */
.value-prop {
  background: #fff;
  padding: 6rem 6rem;
}

.value-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  gap: 2rem;
}

.value-text {
  flex: 1;
  text-align: left;
}

.value-stats {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  width: 100%;
  height: 100%;
}

.value-stats img {
  width: 100%;
  height: auto; 
  max-width: 500px; 
  object-fit: contain; 
  display: block;
}

.stat {
  text-align: center;
}

.stat .number {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: #7e9260;
}

.stat .unit {
  font-size: 1rem;
  color: #555;
  display: block;
}

.stat .desc {
  font-size: 0.9rem;
  color: #666;
}


@media (max-width: 900px) {
  .value-prop {
    padding: 3rem 1.5rem; 
  }

  .value-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
  }

  .value-text, 
  .value-stats {
    width: 100%;
  }
}
.video-section {
  background-color: #f9f7f1;
  padding: 0;
  margin: 0;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  overflow: hidden;
}

.video-container {
  position: relative;
  width: 100%;
  max-width: none;
  aspect-ratio: 16 / 9;
  background: #f9f7f1;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}