/* ===== 기본 설정 ===== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #fafafa;
  color: #222;
  line-height: 1.5;
}

a {
  color: inherit;
}

/* ===== 공통 헤더 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid #ddd;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  color: #222;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  gap: 0.75rem;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  color: #444;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  transition: background-color 0.15s ease;
}

.main-nav a:hover {
  background: #f2f2f2;
}

.main-nav a.current {
  font-weight: 600;
  border-bottom: 2px solid #555;
  border-radius: 0;
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  font-size: 1.4rem;
  cursor: pointer;
}

/* ===== 공통 레이아웃 ===== */
.page-container {
  max-width: 1100px;
  margin: 1.5rem auto;
  padding: 0 1rem 2rem;
}

/* ===== 공통 카드/제목 ===== */
.section-block {
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  border-right: 4px solid #333;
  border-bottom: 1px solid #333;
  display: inline-block;
  padding: 0.25rem 0.5rem;
}

.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.75rem;
}

.card {
  background: #fff;
  border-radius: 0.75rem;
  border: 1px solid #e3e3e3;
  padding: 0.75rem 0.9rem;
  font-size: 0.9rem;
}

.card-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.card-meta {
  font-size: 0.75rem;
  color: #777;
  margin-bottom: 0.25rem;
}

.btn-outline {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  background: #fff;
  color: #333;
  border: 1px solid #ccc;
}

.btn-outline:hover {
  background: #f7f7f7;
}

.timeline-info {
  background: #fff;
  border-radius: 0.75rem;
  border: 1px solid #e3e3e3;
  padding: 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* ===== 반응형 ===== */
@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    right: 0.5rem;
    background: #fff;
    border: 1px solid #ddd;
    padding: 0.5rem 0.75rem;
    flex-direction: column;
    gap: 0.25rem;
    border-radius: 0.5rem;
  }

  .main-nav.open {
    display: flex;
  }
  .nav-toggle {
    display: block;
  }
  .header-inner {
    gap: 0.75rem;
  }
}

/* ===== 홈 페이지 ===== */
.hero {
  padding: 1.5rem 1.25rem;
  background: #fff;
  border-radius: 0.75rem;
  border: 1px solid #e3e3e3;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: #555;
  margin-bottom: 1rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn-primary {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: 999px;
  text-decoration: none;
  cursor: pointer;
  background: #222;
  color: #fff;
  border: 1px solid #222;
}

.btn-primary:hover {
  opacity: 0.9;
}

.search-box {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.search-box input {
  flex: 1;
  min-width: 180px;
  padding: 0.4rem 0.5rem;
  border-radius: 999px;
  border: 1px solid #ccc;
}

.simple-list {
  list-style: none;
  padding-left: 0;
  margin: 0.25rem 0 0;
}

.simple-list li {
  font-size: 0.85rem;
  color: #555;
}