:root{--build-id:"556c9ee5-dcab-462b-a8f5-354627f17240";}
/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0em;
  color: #1a1a1a;
  background: #ffffff;
}

/* 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 {
  outline: 3px solid #1e40af;
  outline-offset: 2px;
}

/* Header - N01 */
header {
  background: #1e40af;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.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;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.8rem;
  color: #ffffff;
  cursor: pointer;
  background: none;
  border: none;
}

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

nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s;
}

nav a:hover {
  opacity: 0.8;
}

nav a[aria-current="page"] {
  text-decoration: underline;
  font-weight: 700;
}

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

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #1e40af;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

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

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

  nav a {
    display: block;
    padding: 0.75rem 1.5rem;
  }
}

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

/* Typography - H01 */
h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.2;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.5rem, 3.75vw, 2.625rem);
  line-height: 1.3;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.25rem, 3.125vw, 2.1875rem);
  line-height: 1.4;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 1rem;
}

/* Sections - S05 */
.hero-section {
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
  color: #ffffff;
  padding: 5rem 1.5rem;
  text-align: center;
}

.hero-section h1 {
  color: #ffffff;
}

.section {
  padding: 4rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section:nth-child(even) {
  background: #f8fafc;
}

/* Cards - K01 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 2rem;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card h3 {
  color: #1e40af;
  margin-bottom: 1rem;
}

/* Buttons - B01 */
.btn {
  display: inline-block;
  background: #1e40af;
  color: #ffffff;
  padding: 0.875rem 2rem;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.3s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: #1e3a8a;
}

.btn-secondary {
  background: #64748b;
}

.btn-secondary:hover {
  background: #475569;
}

/* Lists - CS01 */
.features-list,
.benefits-list {
  list-style: none;
  margin: 1.5rem 0;
}

.features-list li,
.benefits-list li {
  padding: 0.75rem 0 0.75rem 2rem;
  position: relative;
}

.features-list li:before,
.benefits-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #1e40af;
  font-weight: 700;
  font-size: 1.2rem;
}

/* Contact Info */
.contact-info {
  background: #f8fafc;
  padding: 2rem;
  border-radius: 8px;
  margin-top: 2rem;
}

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

.contact-icon {
  font-size: 1.5rem;
  color: #1e40af;
}

/* Footer */
footer {
  background: #0f172a;
  color: #ffffff;
  padding: 3rem 1.5rem 1.5rem;
  margin-top: 4rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: #ffffff;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

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

.footer-section a {
  color: #cbd5e1;
  text-decoration: none;
  display: block;
  padding: 0.25rem 0;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 1.5rem;
  text-align: center;
  color: #94a3b8;
  font-size: 0.875rem;
}

/* SVG Icons */
.icon-svg {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: block;
}

/* Doc Container (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;
}

/* Responsive */
@media (max-width: 768px) {
  .section {
    padding: 3rem 1.5rem;
  }

  .hero-section {
    padding: 3rem 1.5rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }
}