/* 이자모아 공통 스타일 — 모바일 우선, 빌드 불필요 */
:root {
  --primary: #1668dc;
  --primary-dark: #0f4fb3;
  --primary-light: #e8f1fd;
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1a1d21;
  --muted: #5b6470;
  --border: #e3e8ef;
  --radius: 14px;
  --shadow: 0 2px 12px rgba(16, 40, 80, 0.07);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

/* ---------- 헤더 ---------- */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 60px;
}
.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}
.logo:hover { text-decoration: none; }
.site-nav {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  flex: 1;
}
.site-nav::-webkit-scrollbar { display: none; }
.site-nav a {
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 8px;
  white-space: nowrap;
}
.site-nav a:hover { background: var(--primary-light); text-decoration: none; }
.site-nav a.active { color: var(--primary); background: var(--primary-light); }

/* ---------- 메인 ---------- */
main { padding: 28px 0 48px; }

.breadcrumb {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 12px;
}
.breadcrumb a { color: var(--muted); }

.page-title {
  font-size: 1.7rem;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.page-desc {
  color: var(--muted);
  margin: 0 0 20px;
  font-size: 1rem;
}

/* ---------- 히어로 ---------- */
.hero {
  background: linear-gradient(135deg, #1668dc 0%, #0b3d91 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 44px 28px;
  text-align: center;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
}
.hero h1 { font-size: 1.9rem; margin: 0 0 10px; letter-spacing: -0.02em; }
.hero p { margin: 0; opacity: 0.92; font-size: 1.02rem; }

/* ---------- 계산기 카드 그리드 ---------- */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 32px;
}
@media (min-width: 560px) {
  .calc-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 860px) {
  .calc-grid { grid-template-columns: repeat(3, 1fr); }
}
.calc-card-link {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.calc-card-link:hover {
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(16, 40, 80, 0.12);
}
.calc-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 10px;
}
.calc-card-link h3 { margin: 0 0 6px; font-size: 1.08rem; }
.calc-card-link p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* ---------- 섹션 ---------- */
.section { margin-bottom: 32px; }
.section h2 {
  font-size: 1.3rem;
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary-light);
}
.intro-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.intro-box p { margin: 0 0 12px; }
.intro-box p:last-child { margin-bottom: 0; }

.guide-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.guide-list a {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  color: var(--text);
  font-weight: 600;
}
.guide-list a:hover { border-color: var(--primary); text-decoration: none; }
.guide-list small { display: block; font-weight: 400; color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

/* ---------- 계산기 폼 ---------- */
.calc-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 6px;
  font-size: 0.95rem;
}
.form-group .hint {
  display: block;
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 4px;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 13px 14px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}
.form-group input:focus,
.form-group select:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}
.input-with-unit { position: relative; }
.input-with-unit input { padding-right: 52px; }
.input-with-unit .unit {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 0.95rem;
  pointer-events: none;
}
.form-error {
  color: #c62828;
  background: #fdecea;
  border: 1px solid #f5c6cb;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
  margin: 0 0 14px;
}

.btn {
  display: inline-block;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1.02rem;
  font-weight: 700;
  padding: 14px 26px;
  border-radius: 10px;
  text-align: center;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  width: 100%;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-light); text-decoration: none; }

/* ---------- 결과 ---------- */
.result {
  background: var(--card);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 24px 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.result h2 { margin: 0 0 16px; font-size: 1.25rem; }
.result-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 18px;
}
@media (min-width: 560px) {
  .result-grid { grid-template-columns: repeat(2, 1fr); }
}
.result-item {
  background: var(--bg);
  border-radius: 10px;
  padding: 14px 16px;
}
.result-item.highlight {
  background: var(--primary-light);
  border: 1px solid var(--primary);
}
.result-label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 4px; }
.result-value { font-size: 1.25rem; font-weight: 800; color: var(--text); }
.result-item.highlight .result-value { color: var(--primary-dark); }
.result-note {
  font-size: 0.85rem;
  color: var(--muted);
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: 8px;
  padding: 10px 14px;
  margin: 14px 0 0;
}

/* ---------- 표 ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 520px;
}
.data-table th,
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  white-space: nowrap;
}
.data-table th {
  background: var(--bg);
  font-weight: 700;
  text-align: right;
}
.data-table th:first-child,
.data-table td:first-child { text-align: center; }
.data-table tr:last-child td { border-bottom: none; }

/* ---------- 가이드 링크 / 관련 계산기 ---------- */
.guide-link, .related-calcs {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.guide-link h2, .related-calcs h2 { margin: 0 0 10px; font-size: 1.15rem; }
.guide-link p { color: var(--muted); margin: 0 0 14px; font-size: 0.95rem; }
.related-calcs ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.related-calcs a {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
}
.related-calcs a:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }

/* ---------- 가이드 본문 ---------- */
.guide-article {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.guide-article h2 {
  font-size: 1.25rem;
  margin: 30px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.guide-article h2:first-of-type { border-top: none; padding-top: 0; margin-top: 24px; }
.guide-article p { margin: 0 0 14px; }
.guide-article ul, .guide-article ol { margin: 0 0 14px; padding-left: 22px; }
.guide-article li { margin-bottom: 8px; }
.tip-box {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 0.95rem;
}
.tip-box strong { color: var(--primary-dark); }
.guide-article details {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
  background: var(--bg);
}
.guide-article summary { font-weight: 700; cursor: pointer; }
.guide-article details p { margin: 10px 0 0; font-size: 0.95rem; }

/* ---------- 광고 슬롯 (AdSense 코드 삽입 위치) ---------- */
.ad-slot {
  background: #eef1f5;
  border: 1px dashed #b9c4d0;
  border-radius: 10px;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 24px 0;
  position: relative;
}
.ad-label {
  font-size: 0.75rem;
  color: #93a1b0;
  letter-spacing: 0.1em;
}
@media (min-width: 860px) {
  .ad-slot { min-height: 120px; }
}

/* ---------- 푸터 ---------- */
.site-footer {
  background: #232a33;
  color: #c3ccd6;
  padding: 32px 0;
  font-size: 0.88rem;
}
.footer-nav { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 14px; }
.footer-nav a { color: #e6ebf1; font-weight: 600; }
.disclaimer { color: #93a1b0; font-size: 0.8rem; margin: 0 0 10px; }
.copyright { margin: 0; font-size: 0.8rem; color: #93a1b0; }

/* ---------- 정적 페이지 ---------- */
.static-page {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.static-page h2 { font-size: 1.2rem; margin: 26px 0 10px; }
.static-page p, .static-page li { font-size: 0.96rem; }
.static-page ul, .static-page ol { padding-left: 22px; }
.contact-box {
  background: var(--primary-light);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 18px 0;
  font-size: 1rem;
}