/* MoneyInfoHub 공통 스타일 — 모던 핀테크 */

:root {
  --c-primary: #3182f6;
  --c-primary-strong: #1b64da;
  --c-on-primary: #ffffff;
  --c-bg: #f7f8fa;
  --c-card: #ffffff;
  --c-text: #191f28;
  --c-muted: #8b95a1;
  --c-border: #e5e8eb;
  --c-accent: #eef4ff;
  --c-error: #e5503c;
  --header-bg: #ffffff;
  --header-fg: #191f28;
  --header-border: #f0f2f5;
  --summary-bg: #ffffff;
  --summary-fg: #191f28;
  --summary-sub: #6b7684;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 2px 12px rgba(2, 32, 71, 0.06);
  --shadow-strong: 0 4px 20px rgba(2, 32, 71, 0.09);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.6;
  font-size: 16px;
  letter-spacing: -0.01em;
  transition: background 0.2s;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 16px 56px;
}

h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; margin: 20px 0 8px; }
h2 { font-size: 1.15rem; font-weight: 700; margin: 30px 0 10px; }
p.intro { color: var(--c-muted); margin-top: 0; }

/* 상단 헤더 */
.site-header {
  background: var(--header-bg);
  color: var(--header-fg);
  border-bottom: 1px solid var(--header-border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.site-header a { color: var(--header-fg); text-decoration: none; font-weight: 800; letter-spacing: -0.02em; }
.site-header nav { display: flex; align-items: center; }
.site-header nav a { font-weight: 500; font-size: 0.9rem; margin-left: 14px; opacity: 0.85; }
.site-header nav a:hover { opacity: 1; }

/* 이전으로/홈으로 바 */
.page-nav { display: flex; gap: 8px; margin: 14px 0 -6px; }
.page-nav button, .page-nav a {
  display: inline-block;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.86rem;
  font-family: inherit;
  color: var(--c-text);
  text-decoration: none;
  cursor: pointer;
}
.page-nav button:hover, .page-nav a:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* 임시저장 복원 알림 */
.draft-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--c-accent);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  margin: 14px 0 -6px;
  font-size: 0.88rem;
  color: var(--c-text);
}
.draft-notice button {
  background: none;
  border: none;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 0.86rem;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
}

/* 폼 */
.calc-form {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 18px;
  margin: 16px 0;
}
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 0.93rem; margin-bottom: 5px; }
.field .hint { font-size: 0.82rem; color: var(--c-muted); margin-top: 3px; }
.field input[type="text"],
.field input[type="number"],
.field input[type="date"],
.field select {
  width: 100%;
  padding: 11px 13px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-card);
  color: var(--c-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus, .field select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-primary) 15%, transparent);
}
.field .unit-row { display: flex; gap: 8px; align-items: center; }
.field .unit-row input { flex: 1; }
.field .unit-row .unit { color: var(--c-muted); white-space: nowrap; font-size: 0.9rem; }
.field .error-msg { color: var(--c-error); font-size: 0.85rem; margin-top: 4px; }

.radio-group { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-group label {
  flex: 1 1 auto;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
  font-weight: 500;
  cursor: pointer;
  background: var(--c-card);
  font-size: 0.92rem;
  transition: border-color 0.15s, background 0.15s;
}
.radio-group input { display: none; }
.radio-group label:has(input:checked) {
  border-color: var(--c-primary);
  background: var(--c-accent);
  color: var(--c-primary);
  font-weight: 700;
}

.btn-row { display: flex; gap: 8px; margin-top: 20px; }
button.btn {
  flex: 1;
  padding: 13px;
  font-size: 1.02rem;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}
button.btn:active { transform: scale(0.99); }
button.btn-primary { background: var(--c-primary); color: var(--c-on-primary); }
button.btn-primary:hover { background: var(--c-primary-strong); }
button.btn-secondary {
  background: var(--c-card);
  color: var(--c-text);
  border: 1px solid var(--c-border);
  flex: 0 1 auto;
  font-weight: 500;
}
button.btn-secondary:hover { background: var(--c-accent); }

/* 결과 */
.result-summary {
  background: var(--summary-bg);
  color: var(--summary-fg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-strong);
  padding: 22px 20px;
  margin: 20px 0 14px;
}
.result-summary .headline {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.35;
}
.result-summary .sub { color: var(--summary-sub); font-size: 0.9rem; margin-top: 6px; }
.result-summary.is-error { background: var(--c-error); color: #fff; border-color: var(--c-error); }
.result-summary.is-error .sub { color: rgba(255, 255, 255, 0.85); }

table.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 0.93rem;
  margin: 12px 0;
}
table.compare-table th, table.compare-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--c-border);
  text-align: right;
}
table.compare-table th:first-child, table.compare-table td:first-child { text-align: left; color: var(--c-muted); }
table.compare-table td:first-child strong { color: var(--c-text); }
table.compare-table thead th {
  background: var(--c-accent);
  color: var(--c-text);
  font-weight: 700;
  border-bottom: 1px solid var(--c-border);
}
table.compare-table tr:last-child td { border-bottom: none; }
table.compare-table td.best { color: var(--c-primary); font-weight: 800; }

details.calc-process {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 13px 17px;
  margin: 12px 0;
  font-size: 0.92rem;
}
details.calc-process summary { font-weight: 600; cursor: pointer; color: var(--c-text); }
details.calc-process ol { padding-left: 20px; color: var(--c-text); }
details.calc-process .schedule-wrap { max-height: 340px; overflow-y: auto; margin-top: 8px; }

/* 카드 목록 (홈·허브) */
.calc-cards { display: grid; grid-template-columns: 1fr; gap: 10px; padding: 0; list-style: none; }
.calc-cards a {
  display: block;
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--c-text);
  transition: border-color 0.15s, transform 0.1s, box-shadow 0.15s;
}
.calc-cards a:hover {
  border-color: var(--c-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-strong);
}
.calc-cards .name { font-weight: 700; color: var(--c-primary); letter-spacing: -0.01em; }
.calc-cards .desc { font-size: 0.88rem; color: var(--c-muted); margin-top: 3px; }

.related { margin-top: 30px; }
.related h2 { font-size: 1rem; }
.related ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.related a {
  display: inline-block;
  background: var(--c-accent);
  color: var(--c-primary);
  border-radius: 20px;
  padding: 7px 15px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: filter 0.15s;
}
.related a:hover { filter: brightness(0.96); }

/* 소개글 (SEO 콘텐츠) */
.seo-intro {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 6px 20px 16px;
  margin: 28px 0 8px;
  font-size: 0.93rem;
}
.seo-intro p { color: var(--c-text); }
.seo-intro a { color: var(--c-primary); }

/* 안내·푸터 */
.notice {
  font-size: 0.83rem;
  color: var(--c-muted);
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 13px 15px;
  margin: 24px 0 8px;
}
.notice strong { color: var(--c-text); }
.notice ul { margin: 6px 0 0; padding-left: 18px; }
.site-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--c-muted);
  padding: 22px 16px 36px;
}

@media (min-width: 640px) {
  h1 { font-size: 1.75rem; }
  .calc-cards { grid-template-columns: 1fr 1fr; }
  .result-summary .headline { font-size: 1.45rem; }
}