:root{--build-id:"b6b4ee5d-3b99-462b-b815-99fa8a5a9201";}
@charset "UTF-8";

/* ========================================
   CSS 변수 (Design Tokens) - C37
   ======================================== */
:root {
  --primary: #27272a;
  --bg: #f4f4f5;
  --text: #18181b;
  --accent: #71717a;
  --heading: var(--text);
  --link: var(--text);
  --radius: 0.375rem;
}

/* ========================================
   리셋 및 기본 스타일
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "Noto Sans KR", "Malgun Gothic", "Segoe UI", Arial, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0em;
  color: var(--text);
  background-color: var(--bg);
}

/* ========================================
   헤딩 스타일 - H19
   ======================================== */
h1 {
  font-size: clamp(2.5rem, 5vw, 4.125rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--heading);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.875rem, 4vw, 3.094rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--heading);
  margin-bottom: 1.5rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.32rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--heading);
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--heading);
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.7;
}

ul {
  list-style: none;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   접근성 - Skip Link
   ======================================== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ========================================
   포커스 스타일
   ======================================== */
a:focus-visible,
input:focus-visible,
label:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* ========================================
   컨테이너 - S11
   ======================================== */
.container {
  max-width: 1350px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5.75rem 0;
}

/* ========================================
   헤더 및 네비게이션 - N03
   ======================================== */
header {
  background-color: #fff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: 1350px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  order: 2;
}

nav {
  order: 1;
}

nav ul {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  font-weight: 500;
  color: var(--text);
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}

nav a:hover,
nav a[aria-current="page"] {
  border-bottom-color: var(--primary);
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  order: 3;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

  .menu-checkbox:checked ~ nav {
    max-height: 500px;
  }

  nav ul {
    flex-direction: column;
    padding: 1rem 0;
    gap: 0;
  }

  nav li {
    width: 100%;
    text-align: center;
  }

  nav a {
    display: block;
    padding: 1rem;
    border-bottom: none;
  }
}

/* ========================================
   버튼 스타일 - B19
   ======================================== */
.btn-primary,
.btn-secondary {
  display: inline-block;
  border-radius: 0.375rem;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  font-size: 0.875rem;
  text-align: center;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.85;
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background-color: var(--primary);
  color: #fff;
}

/* ========================================
   히어로 섹션
   ======================================== */
.hero {
  background: linear-gradient(135deg, #fafafa 0%, #f4f4f5 100%);
  padding: 6rem 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.75rem;
  align-items: center;
}

.hero-content h1 {
  margin-bottom: 1.5rem;
}

.hero-text {
  font-size: 1.125rem;
  color: var(--accent);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual svg {
  width: 100%;
  height: auto;
}

@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }
}

/* ========================================
   소개 섹션
   ======================================== */
.intro {
  background-color: #fff;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.intro-item {
  text-align: center;
}

.intro-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

/* ========================================
   특징 섹션
   ======================================== */
.features {
  background-color: #fafafa;
}

.feature-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3.75rem;
}

.feature-card {
  background: #fff;
  border-radius: 0.25rem;
  padding: 1.5rem;
  text-align: center;
}

.feature-card svg {
  width: 150px;
  height: 150px;
  margin: 0 auto 1.5rem;
}

/* ========================================
   카드 스타일 - K19
   ======================================== */
.content-card {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

/* ========================================
   타입 섹션
   ======================================== */
.types {
  background-color: #fff;
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.type-card {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
  position: relative;
}

.type-badge {
  display: inline-block;
  background-color: var(--primary);
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 1rem;
}

/* ========================================
   비교 테이블
   ======================================== */
.comparison {
  background-color: #fafafa;
}

.comparison-table {
  display: grid;
  gap: 1px;
  background-color: #e5e7eb;
  border-radius: 0.5rem;
  overflow: hidden;
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
}

.comparison-cell {
  background-color: #fff;
  padding: 1.25rem;
  text-align: center;
}

.comparison-cell.header {
  background-color: var(--primary);
  color: #fff;
  font-weight: 700;
}

.comparison-cell.highlight {
  background-color: #f0fdf4;
  font-weight: 600;
  color: var(--primary);
}

@media (max-width: 768px) {
  .comparison-row {
    grid-template-columns: 1fr;
  }

  .comparison-cell.header:first-child {
    display: none;
  }
}

/* ========================================
   CTA 섹션
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  text-align: center;
}

.cta-section h2 {
  color: #fff;
}

.cta-section p {
  color: #f4f4f5;
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section .btn-primary {
  background-color: #fff;
  color: var(--primary);
}

.cta-section .btn-secondary {
  border-color: #fff;
  color: #fff;
}

.cta-section .btn-secondary:hover {
  background-color: #fff;
  color: var(--primary);
}

/* ========================================
   페이지 히어로
   ======================================== */
.page-hero {
  background: linear-gradient(135deg, #fafafa 0%, #f4f4f5 100%);
  padding: 4rem 0;
  text-align: center;
}

.page-intro {
  font-size: 1.125rem;
  color: var(--accent);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   콘텐츠 섹션
   ======================================== */
.content-section {
  background-color: #fff;
}

.content-section.alt {
  background-color: #fafafa;
}

/* ========================================
   중요성 그리드
   ======================================== */
.importance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.importance-item {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

.importance-number {
  display: inline-block;
  background-color: var(--primary);
  color: #fff;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

/* ========================================
   인증 리스트
   ======================================== */
.certification-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.cert-item {
  border-left: 3px solid var(--primary);
  padding-left: 1rem;
}

/* ========================================
   단계 그리드
   ======================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.step-card {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

.step-number {
  display: inline-block;
  background-color: var(--primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

/* ========================================
   가이드 리스트
   ======================================== */
.guide-list {
  display: grid;
  gap: 2rem;
}

.guide-item {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

.guide-content {
  margin-top: 1rem;
}

.guide-content p {
  margin-bottom: 0.75rem;
}

/* ========================================
   팁 그리드
   ======================================== */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.tip-item {
  text-align: center;
}

.tip-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 1rem;
}

/* ========================================
   관리 리스트
   ======================================== */
.maintenance-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.maintenance-item {
  border-left: 3px solid var(--primary);
  padding-left: 1rem;
}

/* ========================================
   효과 그리드
   ======================================== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.benefit-card {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
  text-align: center;
}

.benefit-icon {
  margin-bottom: 1.5rem;
}

.benefit-icon svg {
  width: 100px;
  height: 100px;
  margin: 0 auto;
}

/* ========================================
   장기 효과 리스트
   ======================================== */
.longterm-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.longterm-item {
  border-left: 3px solid var(--primary);
  padding-left: 1rem;
}

/* ========================================
   환경별 효과
   ======================================== */
.environment-effects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.effect-card {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

.effect-list {
  list-style: disc;
  padding-left: 1.5rem;
  margin-top: 1rem;
}

.effect-list li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

/* ========================================
   심리적 효과
   ======================================== */
.psychological-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.psych-item {
  border-left: 3px solid var(--primary);
  padding-left: 1rem;
}

/* ========================================
   FAQ
   ======================================== */
.faq-list {
  display: grid;
  gap: 2rem;
}

.faq-item {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

.faq-question {
  color: var(--primary);
  margin-bottom: 1rem;
}

.faq-answer p {
  line-height: 1.7;
}

/* ========================================
   연락처
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3.75rem;
}

.contact-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.contact-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.contact-details h3 {
  margin-bottom: 0.5rem;
}

.contact-note {
  font-size: 0.875rem;
  color: var(--accent);
}

.message-box {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

.inquiry-list {
  list-style: disc;
  padding-left: 1.5rem;
  margin: 1.5rem 0;
}

.inquiry-list li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.inquiry-note {
  font-size: 0.875rem;
  color: var(--accent);
  font-style: italic;
}

/* ========================================
   일반 문의 카드
   ======================================== */
.common-inquiries {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3.75rem;
}

.inquiry-card {
  border-radius: 0.25rem;
  background: #f9fafb;
  padding: 1.5rem;
}

/* ========================================
   문서 컨테이너 (Privacy/Terms)
   ======================================== */
.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.doc-container h1 {
  margin-bottom: 2rem;
}

.doc-container p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

/* ========================================
   푸터
   ======================================== */
footer {
  background-color: var(--primary);
  color: #fff;
  padding: 3rem 0 1.5rem;
}

.footer-container {
  max-width: 1350px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand strong {
  font-size: 1.25rem;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-brand p {
  color: #d4d4d8;
  font-size: 0.875rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #d4d4d8;
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-contact p {
  color: #d4d4d8;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.footer-bottom {
  max-width: 1350px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
  border-top: 1px solid #52525b;
  text-align: center;
}

.footer-bottom p {
  color: #d4d4d8;
  font-size: 0.875rem;
  margin: 0;
}