/* 공통 스타일 */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #003874;
  --primary-light: #0054a8;
  --accent: #e8820c;
  --bg: #f5f7fa;
  --text: #222;
  --text-muted: #666;
  --border: #dde3ed;
  --white: #fff;
}

body {
  font-family: 'Malgun Gothic', '맑은 고딕', sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* 상단 유틸 바 */
.top-bar {
  background: #002657;
  color: #aec6e8;
  font-size: 12px;
  padding: 6px 0;
}
.top-bar .container {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
}
.top-bar a { color: #aec6e8; }
.top-bar a:hover { color: #fff; }

/* 헤더 */
header {
  background: var(--white);
  border-bottom: 3px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}
.logo {
  display: flex;
  align-items: center;
}
.logo img {
  height: 56px;
  width: auto;
  display: block;
}

/* 네비게이션 */
nav ul {
  display: flex;
  gap: 0;
}
nav ul li a {
  display: block;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}
nav ul li a:hover,
nav ul li a.active {
  background: var(--primary);
  color: var(--white);
}

/* 모바일 메뉴 버튼 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--primary);
}

/* 컨테이너 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 히어로 배너 */
.hero {
  background: linear-gradient(135deg, #002657 0%, #0054a8 60%, #003874 100%);
  color: white;
  padding: 80px 0 70px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 500px;
  height: 500px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  right: 100px;
  bottom: -150px;
  width: 350px;
  height: 350px;
  background: rgba(255,255,255,0.03);
  border-radius: 50%;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block;
  background: var(--accent);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.hero h2 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -1px;
}
.hero p {
  font-size: 17px;
  color: #b8d0f0;
  margin-bottom: 32px;
  max-width: 560px;
}
.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { background: #c96c08; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); transform: translateY(-1px); }

/* 빠른 메뉴 */
.quick-menu {
  background: var(--white);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.quick-menu-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
.quick-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 10px;
  color: var(--text);
  border-right: 1px solid var(--border);
  transition: background 0.15s;
}
.quick-item:last-child { border-right: none; }
.quick-item:hover { background: #f0f4fb; color: var(--primary); }
.quick-item .icon {
  font-size: 28px;
}
.quick-item span {
  font-size: 13px;
  font-weight: 600;
}

/* 섹션 공통 */
.section { padding: 60px 0; }
.section-gray { background: #eef1f7; }
.section-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: -0.5px;
}
.section-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
}
.more-link {
  font-size: 13px;
  color: var(--primary-light);
  font-weight: 600;
}
.more-link:hover { text-decoration: underline; }

/* 카드 그리드 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.card-header {
  background: var(--primary);
  color: white;
  padding: 16px 20px;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-body { padding: 20px; }
.card-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.card-body p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
}
.tag {
  display: inline-block;
  background: #e8f0fb;
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 20px;
}

/* 공지사항 리스트 */
.notice-list { background: white; border-radius: 10px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,0.06); }
.notice-item {
  display: flex;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  gap: 16px;
  transition: background 0.15s;
}
.notice-item:last-child { border-bottom: none; }
.notice-item:hover { background: #f8faff; }
.notice-badge {
  background: var(--primary);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.notice-badge.new { background: var(--accent); }
.notice-title {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
}
.notice-date {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* 통계 */
.stats-bar {
  background: var(--primary);
  color: white;
  padding: 40px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  text-align: center;
  gap: 20px;
}
.stat-item { border-right: 1px solid rgba(255,255,255,0.2); }
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: #7ec8f5;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: #aec6e8; }

/* 계산기 */
.calc-section {
  background: white;
  border-radius: 12px;
  padding: 36px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
  background: white;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-light);
}
.form-group textarea { height: 100px; resize: vertical; }
.calc-result {
  background: #f0f5ff;
  border: 2px solid var(--primary);
  border-radius: 10px;
  padding: 28px;
}
.calc-result h3 {
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 20px;
  font-weight: 700;
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid #d0dcf0;
  font-size: 14px;
}
.result-row:last-child { border-bottom: none; }
.result-row.total {
  font-weight: 800;
  font-size: 16px;
  color: var(--primary);
  padding-top: 16px;
  margin-top: 4px;
}
.result-val { font-weight: 700; color: var(--primary-light); }
.result-row.total .result-val { color: var(--accent); font-size: 20px; }

/* 상담창구 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-info { padding: 36px; background: var(--primary); color: white; border-radius: 12px; }
.contact-info h3 { font-size: 20px; margin-bottom: 24px; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}
.contact-detail .icon { font-size: 20px; margin-top: 2px; }
.contact-detail h4 { font-size: 13px; color: #aec6e8; margin-bottom: 4px; }
.contact-detail p { font-size: 15px; font-weight: 600; }
.contact-form { background: white; border-radius: 12px; padding: 36px; box-shadow: 0 2px 16px rgba(0,0,0,0.08); }
.contact-form h3 { font-size: 20px; color: var(--primary); margin-bottom: 24px; font-weight: 700; }
.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
  font-family: inherit;
}
.btn-submit:hover { background: var(--primary-light); }

/* 페이지 히어로 */
.page-hero {
  background: linear-gradient(135deg, #002657, #003874);
  color: white;
  padding: 50px 0;
}
.page-hero h2 { font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.page-hero p { color: #b8d0f0; font-size: 15px; }
.breadcrumb {
  font-size: 13px;
  color: #7aa8d4;
  margin-bottom: 12px;
}
.breadcrumb span { color: white; }

/* 테이블 */
.data-table { width: 100%; border-collapse: collapse; background: white; border-radius: 10px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,0.06); }
.data-table th {
  background: var(--primary);
  color: white;
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 700;
  text-align: left;
}
.data-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #f8faff; }
.download-btn {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
}
.download-btn:hover { background: var(--primary-light); }

/* 푸터 */
footer {
  background: #001e47;
  color: #8aafce;
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid #0a2d55;
}
.footer-logo h3 { color: white; font-size: 17px; margin-bottom: 10px; }
.footer-logo p { font-size: 13px; line-height: 1.8; }
.footer-col h4 { color: white; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 13px; color: #8aafce; }
.footer-col ul li a:hover { color: white; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 12px;
}

/* 알림 모달 */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: white;
  border-radius: 12px;
  padding: 40px;
  max-width: 400px;
  width: 90%;
  text-align: center;
}
.modal h3 { font-size: 20px; color: var(--primary); margin-bottom: 12px; }
.modal p { color: var(--text-muted); margin-bottom: 24px; }
.modal .btn { background: var(--primary); color: white; }

/* 반응형 */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-menu-grid { grid-template-columns: repeat(3, 1fr); }
  .quick-item:nth-child(3) { border-right: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .calc-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  nav ul { display: none; }
  nav ul.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: white; box-shadow: 0 4px 16px rgba(0,0,0,0.12); padding: 8px; }
  .menu-toggle { display: block; }
  header { position: relative; }
  .header-inner { flex-wrap: wrap; }
}
@media (max-width: 600px) {
  .hero h2 { font-size: 26px; }
  .card-grid { grid-template-columns: 1fr; }
  .quick-menu-grid { grid-template-columns: repeat(2, 1fr); }
  .quick-item:nth-child(2) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}