/* 머니시뮬 — 라이트 테마 전용 */
:root {
  --accent: #0e9f6e;
  --accent-dark: #057a55;
  --accent-light: #def7ec;
  --bg: #f7faf9;
  --card: #ffffff;
  --text: #1f2933;
  --text-sub: #52606d;
  --line: #e4ebe8;
  --warn: #d97706;
  --bad: #dc2626;
  --radius: 13px;
  --shadow: 0 1px 3px rgba(15, 40, 30, 0.06), 0 4px 14px rgba(15, 40, 30, 0.05);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', 'Noto Sans KR', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

.num, td.num, .result-big, table.data td { font-variant-numeric: tabular-nums; }

a { color: var(--accent-dark); }

/* ---- 헤더 ---- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 18px;
  height: 56px;
}
.brand {
  font-weight: 800;
  font-size: 1.12rem;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.site-nav {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.site-nav::-webkit-scrollbar { display: none; }
.site-nav a {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 6px 10px;
  border-radius: 8px;
  white-space: nowrap;
}
.site-nav a:hover { background: var(--accent-light); color: var(--accent-dark); }
.site-nav a.active { background: var(--accent-light); color: var(--accent-dark); font-weight: 700; }

/* ---- 레이아웃 ---- */
.container { max-width: 880px; margin: 0 auto; padding: 24px 16px 40px; }

.page-title { font-size: 1.65rem; margin: 8px 0 4px; letter-spacing: -0.01em; }
.page-desc { color: var(--text-sub); margin: 0 0 20px; font-size: 0.98rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}
.card h2 { font-size: 1.15rem; margin: 0 0 14px; }
.card h3 { font-size: 1.02rem; margin: 18px 0 8px; }

/* ---- 입력 폼 ---- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 22px;
}
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.field label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 5px;
}
.field .row { display: flex; align-items: center; gap: 8px; }
.field input[type='number'], .field input[type='text'] {
  width: 130px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 0.98rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  background: #fff;
  color: var(--text);
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
.field .unit { font-size: 0.85rem; color: var(--text-sub); white-space: nowrap; }
.field input[type='range'] {
  width: 100%;
  margin-top: 8px;
  accent-color: var(--accent);
  cursor: pointer;
}
.field .error {
  display: none;
  color: var(--bad);
  font-size: 0.78rem;
  margin-top: 3px;
}
.field.invalid .error { display: block; }
.field.invalid input[type='number'] { border-color: var(--bad); }

select {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 0.95rem;
  background: #fff;
  color: var(--text);
}

/* ---- 버튼 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: 10px;
  padding: 11px 22px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-dark); }
.btn:disabled { background: #9db8ad; cursor: not-allowed; }
.btn-secondary {
  background: #fff;
  color: var(--accent-dark);
  border: 1px solid var(--accent);
}
.btn-secondary:hover { background: var(--accent-light); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; align-items: center; }

.presets { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.preset-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text-sub);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.86rem;
  cursor: pointer;
}
.preset-btn:hover, .preset-btn.active { border-color: var(--accent); color: var(--accent-dark); background: var(--accent-light); }

/* ---- 진행률 ---- */
.progress-wrap { display: none; margin-top: 14px; }
.progress-wrap.show { display: block; }
.progress-bar { height: 8px; background: var(--line); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: var(--accent); border-radius: 999px; transition: width 0.1s linear; }
.progress-text { font-size: 0.8rem; color: var(--text-sub); margin-top: 4px; }

/* ---- 결과 패널 ---- */
.result-panel { display: none; }
.result-panel.show { display: block; }
.result-hero { text-align: center; padding: 8px 0 14px; }
.result-hero .label { font-size: 0.9rem; color: var(--text-sub); }
.result-big { font-size: 2.6rem; font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
.result-big.grade-good { color: var(--accent); }
.result-big.grade-warn { color: var(--warn); }
.result-big.grade-bad { color: var(--bad); }
.result-sub { font-size: 0.9rem; color: var(--text-sub); margin-top: 4px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.stat {
  background: var(--bg);
  border-radius: 10px;
  padding: 12px 14px;
  text-align: center;
}
.stat .k { font-size: 0.78rem; color: var(--text-sub); }
.stat .v { font-size: 1.18rem; font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---- 차트 ---- */
.chart-box { position: relative; width: 100%; margin-top: 10px; }
.chart-box canvas { display: block; width: 100%; }
.chart-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-sub);
  margin: 4px 0 2px;
}
.chart-legend .item { display: inline-flex; align-items: center; gap: 5px; }
.chart-legend .swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(31, 41, 51, 0.92);
  color: #fff;
  font-size: 0.78rem;
  border-radius: 8px;
  padding: 8px 10px;
  line-height: 1.5;
  white-space: nowrap;
  transform: translate(-50%, 0);
  opacity: 0;
  transition: opacity 0.1s;
  z-index: 10;
  font-variant-numeric: tabular-nums;
}

/* ---- 표 ---- */
.table-wrap { overflow-x: auto; margin-top: 10px; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
table.data th, table.data td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}
table.data th { background: var(--bg); color: var(--text-sub); font-weight: 600; }
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data tr.highlight { background: var(--accent-light); font-weight: 700; }

/* ---- 허브 카드 ---- */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
  margin: 20px 0;
}
.tool-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s, border-color 0.15s;
}
.tool-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.tool-card .icon { font-size: 1.7rem; }
.tool-card h3, .tool-card h2 { margin: 8px 0 5px; font-size: 1.05rem; }
.tool-card p { margin: 0; font-size: 0.85rem; color: var(--text-sub); }

/* ---- SEO 콘텐츠 / FAQ ---- */
.seo-content h2 { font-size: 1.2rem; }
.seo-content p, .seo-content li { font-size: 0.93rem; color: var(--text-sub); }
.seo-content .formula {
  background: var(--bg);
  border-radius: 10px;
  padding: 12px 16px;
  font-family: 'Cambria Math', Georgia, serif;
  font-size: 0.95rem;
  overflow-x: auto;
  color: var(--text);
}
details.faq {
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
}
details.faq summary { cursor: pointer; font-weight: 600; font-size: 0.95rem; }
details.faq p { margin: 8px 0 0; font-size: 0.9rem; color: var(--text-sub); }

/* ---- 쿠팡 배너 ---- */
.promo { margin: 16px 0; text-align: center; }
.coupang-wrap { display: flex; justify-content: center; margin: 8px 0; min-height: 90px; overflow-x: hidden; }
.promo-disclosure { font-size: 0.72rem; color: #888; margin-top: 6px; }

/* ---- 양옆 레일 (880px 컨테이너 기준, 24px 간격) ---- */
.side-rail {
  display: none;
  position: fixed;
  top: 90px;
  width: 160px;
  z-index: 5;
}
@media (min-width: 1280px) {
  .side-rail { display: block; }
  .side-l { left: calc(50% - 624px); }
  .side-r { left: calc(50% + 464px); }
}

/* ---- 푸터 ---- */
.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 26px 16px 34px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-sub);
}
.site-footer .disclaimer {
  max-width: 880px;
  margin: 0 auto 12px;
  color: var(--warn);
  font-weight: 600;
}
.site-footer .links { margin-bottom: 10px; }
.site-footer .links a { margin: 0 8px; }

/* ---- 진입 애니메이션 ---- */
@media (prefers-reduced-motion: no-preference) {
  .card, .tool-card { animation: fadeUp 0.35s ease both; }
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
  }
}

@media (max-width: 640px) {
  .result-big { font-size: 2rem; }
  .container { padding: 16px 12px 32px; }
  .card { padding: 16px; }
}