:root{--build-id:"743452e8-fefa-47f6-9e16-6d7215080a26";}
/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI Variable", "Malgun Gothic", "Noto Sans KR", Arial, 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: #0369a1;
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

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

/* Header & Navigation */
header {
  background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
  color: white;
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 8px rgba(3, 105, 161, 0.15);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
  font-weight: 700;
  color: white;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  transition: all 0.3s ease;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.1);
}

.nav-menu a:hover,
.nav-menu a:focus {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.nav-menu a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.3);
  font-weight: 600;
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  min-height: 60vh;
}

/* Typography */
h1 {
  font-size: clamp(2rem, 3vw + 1rem, 3.2rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: #0369a1;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 2.4vw + 0.8rem, 2.56rem);
  line-height: 1.25;
  margin: 2.5rem 0 1.2rem;
  color: #0284c7;
  font-weight: 600;
}

h3 {
  font-size: clamp(1.28rem, 1.92vw + 0.64rem, 2.048rem);
  line-height: 1.3;
  margin: 2rem 0 1rem;
  color: #0369a1;
  font-weight: 600;
}

p {
  margin-bottom: 1.2rem;
  color: #333;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(3, 105, 161, 0.2);
}

.btn:hover,
.btn:focus {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(3, 105, 161, 0.3);
}

.btn-secondary {
  background: linear-gradient(135deg, #64748b 0%, #475569 100%);
  box-shadow: 0 4px 12px rgba(100, 116, 139, 0.2);
}

.btn-secondary:hover,
.btn-secondary:focus {
  box-shadow: 0 6px 20px rgba(100, 116, 139, 0.3);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2.5rem 0;
}

.card {
  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(3, 105, 161, 0.15);
  border-color: #0369a1;
}

.card h3 {
  margin-top: 0;
  color: #0369a1;
}

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

/* Sections */
.section {
  margin: 4rem 0;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-radius: 16px;
  border-left: 5px solid #0369a1;
}

.section-alt {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  border-left: 5px solid #0284c7;
}

/* Lists */
ul,
ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

li {
  margin-bottom: 0.8rem;
  color: #333;
  line-height: 1.6;
}

/* Contact Info */
.contact-info {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  padding: 2rem;
  border-radius: 12px;
  margin: 2rem 0;
  border-left: 5px solid #0369a1;
}

.contact-info p {
  margin: 0.8rem 0;
  font-size: 1.1rem;
}

.contact-info strong {
  color: #0369a1;
  font-weight: 600;
}

/* Footer */
footer {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #e2e8f0;
  padding: 2.5rem 1.5rem 1.5rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: #0ea5e9;
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
  color: #cbd5e1;
  text-decoration: none;
  line-height: 1.8;
}

.footer-section a:hover,
.footer-section a:focus {
  color: #0ea5e9;
  text-decoration: underline;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #334155;
  color: #94a3b8;
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-menu {
    width: 100%;
    flex-direction: column;
    gap: 0.3rem;
  }

  .nav-menu a {
    width: 100%;
    text-align: center;
  }

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

  .section {
    padding: 2rem 1.5rem;
  }
}

/* Accessibility */
:focus {
  outline: 3px solid #0ea5e9;
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}