:root{--build-id:"2955ebe9-3dff-4951-bf08-a0f87840b7c9";}
/* F2 (Apple Wide) 폰트 스택 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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: #1a1a1a;
  background: #ffffff;
}

/* H19 헤딩 - clamp(2.25rem, 5vw, 3.5rem) */
h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #0e7490;
}

h2 {
  font-size: clamp(1.6875rem, 3.75vw, 2.625rem);
  line-height: 1.3;
  font-weight: 600;
  margin-bottom: 0.875rem;
  color: #155e75;
}

h3 {
  font-size: clamp(1.265625rem, 2.8125vw, 1.96875rem);
  line-height: 1.4;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: #0e7490;
}

a {
  color: #0e7490;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #155e75;
  text-decoration: underline;
}

a:focus-visible,
input:focus-visible,
label:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

/* 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;
}

/* Header - N03 */
header {
  background: linear-gradient(135deg, #0e7490 0%, #155e75 100%);
  padding: 1rem 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
}

.logo:hover {
  color: #fef3c7;
  text-decoration: none;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.75rem;
  color: #ffffff;
  cursor: pointer;
  padding: 0.5rem;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
}

nav a {
  color: #ffffff;
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: background 0.3s ease, color 0.3s ease;
}

nav a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fef3c7;
  text-decoration: none;
}

nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.25);
  color: #fef3c7;
  font-weight: 600;
}

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

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #155e75;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
  }

  .menu-checkbox:checked ~ nav {
    max-height: 400px;
  }

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

  nav a {
    display: block;
    padding: 1rem 1.5rem;
    border-radius: 0;
  }
}

/* Main Content */
main {
  min-height: 60vh;
}

.content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(to bottom, #ecfeff 0%, #cffafe 100%);
  padding: 4rem 0;
  text-align: center;
}

.hero-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero-text {
  font-size: 1.125rem;
  line-height: 1.75;
  color: #164e63;
  margin: 1.5rem 0;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-icon {
  width: 180px;
  height: 180px;
  margin: 2rem auto 0;
}

/* Sections - S03 */
.intro-section,
.feature-section,
.content-section,
.cta-section {
  padding: 3rem 0;
}

.intro-section {
  background: #f0fdfa;
}

.feature-section {
  background: #ffffff;
  border-top: 2px solid #cffafe;
  border-bottom: 2px solid #cffafe;
}

.content-section {
  background: #ecfeff;
}

.cta-section {
  background: linear-gradient(135deg, #0e7490 0%, #155e75 100%);
  color: #ffffff;
  text-align: center;
}

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

.cta-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.cta-icon {
  width: 200px;
  height: 160px;
  margin: 2rem auto;
}

.cta-contact {
  margin-top: 2rem;
  font-size: 1.125rem;
  font-weight: 500;
}

/* Cards - K19 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.card-item {
  background: #ffffff;
  border: 2px solid #67e8f9;
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(14, 116, 144, 0.15);
}

.card-icon {
  font-size: 2.5rem;
  color: #0e7490;
  display: block;
  margin-bottom: 1rem;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.feature-box {
  background: #f0fdfa;
  border-left: 4px solid #0e7490;
  padding: 1.75rem;
  border-radius: 8px;
}

.feature-icon {
  font-size: 2rem;
  color: #0e7490;
  display: block;
  margin-bottom: 0.75rem;
}

/* Lists */
.list-container {
  margin-top: 2rem;
}

.list-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.list-marker {
  color: #0e7490;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.list-item p {
  margin: 0;
}

/* Button - B19 */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: #0e7490;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  background: #155e75;
  transform: scale(1.05);
  text-decoration: none;
}

/* Page Header */
.page-header {
  background: linear-gradient(135deg, #ecfeff 0%, #cffafe 100%);
  padding: 3rem 0;
  text-align: center;
}

.lead-text {
  font-size: 1.125rem;
  color: #164e63;
  margin-top: 1rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Graphics */
.section-graphic,
.inline-graphic {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 2rem auto;
}

/* Value Cards */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.value-card {
  background: #ffffff;
  border: 2px solid #a5f3fc;
  border-radius: 10px;
  padding: 1.75rem;
  text-align: center;
}

.value-icon {
  font-size: 2.25rem;
  color: #0e7490;
  display: block;
  margin-bottom: 1rem;
}

/* Service List */
.service-list {
  margin-top: 2.5rem;
}

.service-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  align-items: flex-start;
}

.service-number {
  width: 48px;
  height: 48px;
  background: #0e7490;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.service-content {
  flex: 1;
}

.service-content h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.service-content p {
  margin: 0;
}

/* Contact Info */
.contact-info {
  background: #cffafe;
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
  margin-top: 2rem;
  color: #164e63;
}

/* Benefit Cards */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.benefit-card {
  background: #ffffff;
  border: 2px solid #67e8f9;
  border-radius: 10px;
  padding: 1.75rem;
  text-align: center;
}

.benefit-icon {
  font-size: 2.25rem;
  color: #0e7490;
  display: block;
  margin-bottom: 1rem;
}

/* Tip Box */
.tip-box {
  background: #ffffff;
  border: 2px solid #67e8f9;
  border-radius: 10px;
  padding: 2rem;
  margin-top: 2.5rem;
}

.tip-box h3 {
  margin-top: 0;
  margin-bottom: 1.25rem;
  color: #0e7490;
}

.tip-box ul {
  list-style: none;
  padding-left: 0;
}

.tip-box li {
  padding-left: 1.75rem;
  position: relative;
  margin-bottom: 0.75rem;
  line-height: 1.65;
}

.tip-box li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: #0e7490;
  font-size: 1rem;
}

/* Tip Cards */
.tip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.tip-card {
  background: #ffffff;
  border: 2px solid #a5f3fc;
  border-radius: 10px;
  padding: 1.75rem;
  text-align: center;
}

.tip-number {
  width: 44px;
  height: 44px;
  background: #0e7490;
  color: #ffffff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

/* Method List */
.method-list {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.75rem;
}

.method-item {
  background: #ffffff;
  border-left: 4px solid #0e7490;
  padding: 1.5rem;
  border-radius: 6px;
}

.method-item h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.method-item p {
  margin: 0;
}

/* Save List */
.save-list {
  margin-top: 2.5rem;
}

.save-item {
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
  align-items: flex-start;
}

.save-icon {
  font-size: 1.75rem;
  color: #0e7490;
  flex-shrink: 0;
}

.save-item p {
  margin: 0;
  line-height: 1.65;
}

/* Resource Cards */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.resource-card {
  background: #ffffff;
  border: 2px solid #67e8f9;
  border-radius: 10px;
  padding: 1.75rem;
  text-align: center;
}

.resource-icon {
  font-size: 2.25rem;
  color: #0e7490;
  display: block;
  margin-bottom: 1rem;
}

/* Guide List */
.guide-list {
  margin-top: 2.5rem;
  display: grid;
  gap: 2rem;
}

.guide-item {
  background: #ffffff;
  border: 2px solid #a5f3fc;
  border-radius: 10px;
  padding: 1.75rem;
}

.guide-item h3 {
  margin-top: 0;
  margin-bottom: 0.875rem;
  color: #0e7490;
}

.guide-item p {
  margin: 0;
  line-height: 1.65;
}

/* Storage Table */
.storage-table {
  margin-top: 2.5rem;
  background: #ffffff;
  border: 2px solid #67e8f9;
  border-radius: 10px;
  overflow: hidden;
}

.table-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid #cffafe;
}

.table-row:last-child {
  border-bottom: none;
}

.table-cell {
  padding: 1.25rem;
  text-align: center;
  border-right: 1px solid #cffafe;
}

.table-cell:last-child {
  border-right: none;
}

.table-cell.header {
  background: #ecfeff;
  font-weight: 600;
  color: #0e7490;
}

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

  .table-cell {
    border-right: none;
    border-bottom: 1px solid #cffafe;
  }

  .table-cell:last-child {
    border-bottom: none;
  }

  .table-row:not(:last-child) .table-cell:last-child {
    border-bottom: 2px solid #67e8f9;
  }
}

/* Contact Page */
.contact-box {
  background: #ffffff;
  border: 2px solid #67e8f9;
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  margin-bottom: 3rem;
}

.contact-icon {
  width: 150px;
  height: 150px;
  margin: 1.5rem auto;
}

.contact-details {
  margin-top: 2rem;
}

.contact-item {
  margin-bottom: 1.75rem;
}

.contact-label {
  display: block;
  font-weight: 600;
  color: #0e7490;
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.contact-item p {
  font-size: 1.125rem;
  color: #164e63;
  margin: 0;
}

/* Info Box */
.info-box {
  background: #ecfeff;
  border: 2px solid #a5f3fc;
  border-radius: 12px;
  padding: 2.5rem;
}

.info-box h2 {
  margin-top: 0;
  margin-bottom: 1.5rem;
}

.faq-list {
  margin-top: 2rem;
}

.faq-item {
  background: #ffffff;
  border-left: 4px solid #0e7490;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border-radius: 6px;
}

.faq-item h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  color: #0e7490;
}

.faq-item p {
  margin: 0;
  line-height: 1.65;
}

/* Document Container (Privacy/Terms) */
.doc-container {
  max-width: 800px;
  margin: 4rem auto;
  padding: 3rem 1.5rem;
  text-align: center;
}

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

.doc-container p {
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

/* Footer */
footer {
  background: #164e63;
  color: #ffffff;
  padding: 2rem 0;
  margin-top: 4rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-container p {
  margin: 0;
}

.footer-container nav {
  display: flex;
  gap: 2rem;
}

.footer-container a {
  color: #cffafe;
  font-weight: 500;
  transition: color 0.3s ease;
}

.footer-container a:hover {
  color: #ffffff;
  text-decoration: underline;
}

@media (max-width: 640px) {
  .footer-container {
    flex-direction: column;
    text-align: center;
  }

  .footer-container nav {
    flex-direction: column;
    gap: 0.75rem;
  }
}