:root{--build-id:"48fc1222-5eaa-43a7-a763-52c336444cee";}
/* CSS Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #18181b;
  --bg: #fafafa;
  --text: #09090b;
  --accent: #52525b;
  --heading: var(--text);
  --link: var(--text);
}

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

/* 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;
}

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

/* Typography */
h1 {
  font-size: 2.75rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.005em;
  color: var(--heading);
  margin-bottom: 1rem;
}

h2 {
  font-size: 2.0625rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.004em;
  color: var(--heading);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.546875rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.003em;
  color: var(--heading);
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header & Navigation - N13 스타일 */
header {
  background: transparent;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background-color: rgba(250, 250, 250, 0.9);
  border-bottom: 1px solid rgba(24, 24, 27, 0.1);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.nav-left,
.nav-right {
  flex: 1;
}

.nav-left ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  justify-content: flex-start;
}

.nav-right ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  justify-content: flex-end;
}

.nav-left a,
.nav-right a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-left a:hover,
.nav-right a:hover {
  color: var(--accent);
}

.nav-left a[aria-current="page"],
.nav-right a[aria-current="page"] {
  color: var(--primary);
  font-weight: 600;
}

.cta-link {
  background: transparent;
  border-bottom: 2px solid var(--primary);
  padding: 0.5rem 0;
  font-weight: 500;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  position: absolute;
  right: 2rem;
}

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

  .logo {
    position: static;
    transform: none;
  }

  .nav-left,
  .nav-right {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 2rem;
    border-top: 1px solid rgba(24, 24, 27, 0.1);
  }

  .menu-checkbox:checked ~ .nav-left,
  .menu-checkbox:checked ~ .nav-right {
    display: block;
  }

  .nav-left ul,
  .nav-right ul {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-right {
    top: calc(100% + 200px);
  }
}

/* Hero Section - L19 다이나믹 히어로 */
.hero-dynamic {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--bg) 0%, rgba(24, 24, 27, 0.03) 100%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--accent);
  margin-bottom: 2rem;
}

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

.hero-visual {
  margin-top: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Buttons - B18 스타일 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  border-bottom: 2px solid var(--primary);
  background: transparent;
  padding: 0.5rem 0;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  transition: all 0.3s;
}

.btn-primary:hover,
.btn-secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.btn-secondary {
  border-color: var(--accent);
  color: var(--accent);
}

/* Tab Section */
.tab-section {
  padding: 5rem 0;
}

.tab-section h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.tab-container {
  max-width: 900px;
  margin: 0 auto;
}

.tab-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.tab-btn {
  background: transparent;
  border-bottom: 2px solid transparent;
  padding: 0.5rem 0;
  font-weight: 500;
  color: var(--accent);
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s;
}

.tab-btn:hover,
.tab-btn.active {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.tab-inner {
  background: transparent;
  border-left: 3px solid var(--primary);
  padding: 1.5rem 0 1.5rem 1.5rem;
}

.tab-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

/* Checklist Section */
.checklist-section {
  padding: 5rem 0;
  background: rgba(24, 24, 27, 0.02);
}

.checklist-section h2 {
  text-align: center;
  margin-bottom: 1rem;
}

.section-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3rem;
  color: var(--accent);
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.checklist-card {
  background: transparent;
  border-left: 3px solid var(--primary);
  padding: 1.5rem 0 1.5rem 1.5rem;
}

.check-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

/* CTA Multi Section */
.cta-multi {
  padding: 5rem 0;
  text-align: center;
}

.cta-multi h2 {
  margin-bottom: 1rem;
}

.cta-description {
  max-width: 700px;
  margin: 0 auto 2rem;
  color: var(--accent);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.cta-visual {
  max-width: 800px;
  margin: 0 auto;
}

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

/* Page Header */
.page-header {
  padding: 5rem 0 3rem;
  text-align: center;
  background: linear-gradient(135deg, var(--bg) 0%, rgba(24, 24, 27, 0.03) 100%);
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--accent);
}

/* Content Section */
.content-section {
  padding: 5rem 0;
}

.content-card {
  background: transparent;
  border-left: 3px solid var(--primary);
  padding: 1.5rem 0 1.5rem 1.5rem;
  margin-bottom: 3rem;
}

.card-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

/* Visual Section */
.visual-section {
  padding: 3rem 0;
}

.visual-section svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Contact Info */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.contact-detail {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 1rem;
}

.contact-message {
  background: rgba(24, 24, 27, 0.02);
  padding: 2rem;
  border-radius: 0.5rem;
  margin-top: 3rem;
}

/* Footer */
footer {
  background: var(--primary);
  color: #fff;
  padding: 3rem 0 1rem;
  margin-top: 5rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-col h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: #fff;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: 0.875rem;
}

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

/* Document Container */
.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 5rem 2rem;
  text-align: center;
}

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

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

.doc-container a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 2px solid var(--primary);
  padding-bottom: 0.25rem;
}

.doc-container a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .container {
    padding: 0 1rem;
  }

  .hero-dynamic {
    padding: 3rem 0;
  }

  .tab-section,
  .checklist-section,
  .cta-multi,
  .content-section {
    padding: 3rem 0;
  }

  .checklist-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}