:root{--build-id:"fd61bdec-2a3c-4376-99a9-a5b805742420";}
@charset "UTF-8";

/* 색상 변수 (C07) */
:root {
  --primary: #2563eb;
  --bg: #f0f9ff;
  --text: #0c4a6e;
  --accent: #0ea5e9;
  --heading: var(--text);
  --link: var(--text);
}

/* 폰트 (F7) */
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;
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
}

/* 헤딩 (H13) */
h1 {
  font-size: clamp(2.10rem, 2.8vw + 1rem, 3.125rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0;
  color: var(--heading);
  margin: 0 0 1.5rem 0;
}

h2 {
  font-size: clamp(1.58rem, 2.1vw + 0.75rem, 2.34rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--heading);
  margin: 0 0 1.25rem 0;
}

h3 {
  font-size: clamp(1.26rem, 1.68vw + 0.6rem, 1.88rem);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0;
  color: var(--heading);
  margin: 0 0 1rem 0;
}

/* 여백 시스템 (S02) */
section {
  padding: 4rem 0;
}

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

.gap {
  gap: 2.5rem;
}

/* 네비게이션 (N10) */
header {
  background: #ffffff;
  border-bottom: 1px solid rgba(12, 74, 110, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1200px;
  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);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-tagline {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text);
  opacity: 0.7;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--primary);
  background: none;
  border: none;
  padding: 0.5rem;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  color: var(--link);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover {
  color: var(--primary);
}

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

/* 버튼 (B18) */
.btn {
  border-bottom: 2px solid var(--primary);
  background: transparent;
  padding: 0.5rem 0;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  display: inline-block;
  transition: all 0.2s;
}

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

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  border-bottom: 2px solid var(--primary);
  padding: 0.5rem 1.5rem;
}

.btn-primary:hover {
  background: var(--accent);
  border-bottom-color: var(--accent);
  color: #ffffff;
}

/* 카드 (K08) */
.card {
  border: 2px dashed #9ca3af;
  border-radius: 0.75rem;
  padding: 1.75rem;
  background: #ffffff;
  transition: all 0.3s;
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* 레이아웃 (L19) */
.hero {
  background: linear-gradient(135deg, #dbeafe 0%, #f0f9ff 100%);
  padding: 5rem 0;
  text-align: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.checklist li {
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(12, 74, 110, 0.1);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.checklist li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 700;
  font-size: 1.25rem;
}

/* 푸터 */
footer {
  background: #ffffff;
  border-top: 1px solid rgba(12, 74, 110, 0.1);
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(12, 74, 110, 0.1);
  font-size: 0.875rem;
  opacity: 0.7;
}

/* 접근성 */
.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;
}

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

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

  nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid rgba(12, 74, 110, 0.1);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }

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

  nav ul {
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0;
  }

  nav li {
    width: 100%;
    border-bottom: 1px solid rgba(12, 74, 110, 0.05);
  }

  nav a {
    display: block;
    padding: 1rem 0;
  }

  section {
    padding: 3rem 0;
  }

  .hero {
    padding: 3rem 0;
  }
}

/* 문서 페이지 */
.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.doc-container p {
  margin: 1.5rem 0;
}

.doc-container a {
  color: var(--primary);
  text-decoration: underline;
}