:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #1a2230;
  --muted: #6b7684;
  --line: #e2e7ec;
  --accent: #0b6e4f;
  --accent-ink: #094a36;
  --warn-bg: #fdecea;
  --warn-ink: #943126;
  --good: #1e8449;
  --marginal: #b9770e;
  --fail: #c0392b;
  --tunable-bg: #eef2f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo",
    "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

.site-header {
  background: linear-gradient(135deg, #0b6e4f, #094a36);
  color: #eafff5;
  padding: 28px 24px;
}
.site-header h1 { margin: 0 0 8px; font-size: 24px; }
.site-header .sub { margin: 0 0 12px; color: #c7f0df; font-size: 14px; max-width: 760px; }
.disclaimer {
  margin: 0;
  background: rgba(255, 255, 255, 0.12);
  border-left: 4px solid #ffd166;
  padding: 10px 14px;
  border-radius: 4px;
  font-size: 13px;
  max-width: 760px;
}
.disclaimer strong { color: #ffd166; }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
}
.panel h2 { margin: 0 0 14px; font-size: 17px; }
.panel h2 small { color: var(--muted); font-weight: 400; font-size: 12px; }
.compare, .evidence { grid-column: 1 / -1; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--muted);
  gap: 4px;
}
input, select {
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
}
input:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.hint { color: var(--muted); font-size: 12px; }
.tunable {
  display: inline-block;
  font-size: 10px;
  background: var(--tunable-bg);
  color: var(--muted);
  border-radius: 4px;
  padding: 1px 5px;
  vertical-align: middle;
}
.advanced { margin-top: 14px; }
.advanced summary { cursor: pointer; font-size: 13px; color: var(--accent-ink); font-weight: 600; }
.advanced .grid { margin-top: 10px; }

.reg-warn {
  background: var(--warn-bg);
  color: var(--warn-ink);
  border: 1px solid #e6b0aa;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 12px;
  font-weight: 600;
}
.summary { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.stat {
  flex: 1;
  min-width: 120px;
  background: #f7faf9;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  text-align: center;
}
.stat-label { display: block; font-size: 11px; color: var(--muted); }
.stat-value { font-size: 22px; font-weight: 700; color: var(--accent-ink); }
.stat-unit { font-size: 11px; color: var(--muted); }

table { border-collapse: collapse; width: 100%; font-size: 13px; }
.env-table th, .env-table td, .cmp-table th, .cmp-table td {
  border: 1px solid var(--line);
  padding: 8px 6px;
  text-align: center;
}
.env-table th, .cmp-table th { background: #f0f4f3; font-weight: 600; }
th small { color: var(--muted); font-weight: 400; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 12px; font-weight: 700; font-size: 12px; color: #fff; }
.badge.good { background: var(--good); }
.badge.marginal { background: var(--marginal); }
.badge.fail { background: var(--fail); }

.evidence-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 18px; }
.formula { margin: 0; padding-left: 18px; font-size: 13px; }
.formula li { margin-bottom: 6px; }
.cite { color: var(--accent); font-size: 11px; }
.mini td { border: 1px solid var(--line); padding: 4px 8px; font-size: 12px; text-align: center; }
.evidence h3 { font-size: 14px; margin: 0 0 8px; }
.cite-note { font-size: 12px; color: var(--muted); margin-top: 14px; }
.cite-note a { color: var(--accent); }

.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px 40px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 760px) {
  main { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
}