:root {
  --ink: #1a221c;
  --muted: #5a635c;
  --paper: #f3efe6;
  --card: #fffcf6;
  --line: #ddd4c6;
  --accent: #245544;
  --accent-2: #1b3d32;
  --warn: #7a3428;
  --warn-bg: #f6e8e4;
  --soft: #e7efe9;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body, #root { margin: 0; min-height: 100%; }
body {
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  background:
    radial-gradient(1200px 420px at 10% -10%, #e4ece6 0%, transparent 55%),
    var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

a { color: var(--accent-2); }
button, input, select { font: inherit; }

.shell { max-width: 860px; margin: 0 auto; padding: 22px 20px 72px; }
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 18px;
  margin-bottom: 28px;
}
.brand { font-family: "Noto Serif KR", serif; font-weight: 700; letter-spacing: -0.03em; font-size: 18px; }
.brand small { display: block; font-family: "Noto Sans KR", sans-serif; font-weight: 400; color: var(--muted); font-size: 12px; margin-top: 3px; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; font-size: 13px; }
.nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 999px;
}
.nav a.active { color: #fff; background: var(--accent); font-weight: 600; }

h1 {
  font-family: "Noto Serif KR", serif;
  font-size: 34px;
  letter-spacing: -0.04em;
  line-height: 1.25;
  margin: 0 0 12px;
}
h2 { font-size: 17px; margin: 28px 0 10px; }
p { margin: 0 0 12px; }
.lede { font-size: 16px; color: var(--muted); max-width: 40em; }
.credit {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--accent);
  background: var(--soft);
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  margin: 16px 0;
}
.hero { padding: 8px 4px 4px; }
.developer p { color: var(--ink); }
.dev-kicker {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin: 0 0 10px;
}
.dev-who {
  display: grid;
  gap: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.dev-who strong {
  font-family: "Noto Serif KR", serif;
  font-size: 18px;
  letter-spacing: -0.03em;
}
.dev-who span {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}
.dev-values {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}
.dev-values li {
  margin: 0 0 8px;
  padding: 8px 12px;
  background: var(--soft);
  border-radius: 10px;
  font-size: 14px;
}
.dev-values b {
  display: inline-block;
  min-width: 3.6em;
  color: var(--accent);
  margin-right: 8px;
}
.dev-src { font-size: 13px; color: var(--muted); }
.grid { display: grid; gap: 12px; }
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.three .btn { width: 100%; }
@media (max-width: 720px) {
  .grid.two, .grid.three { grid-template-columns: 1fr; }
  .top { flex-direction: column; align-items: flex-start; }
  h1 { font-size: 28px; }
}

label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
input, select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 11px 12px;
}
input:focus, select:focus { outline: 2px solid #c5d8cc; border-color: var(--accent); }
.row { margin-bottom: 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
a.btn { text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent-2); border: 1px solid var(--line); }
.btn.warn { background: var(--warn); }
.btn.small { padding: 7px 10px; font-size: 13px; font-weight: 500; }

.banner {
  border-radius: 12px;
  padding: 12px 14px;
  margin: 12px 0 20px;
  font-size: 14px;
}
.banner.warn { background: var(--warn-bg); color: var(--warn); }
.banner.note { background: var(--soft); color: var(--accent-2); }

.steps { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 18px; font-size: 12px; color: var(--muted); }
.steps span { padding: 4px 8px; border-radius: 999px; background: #efeae1; }
.steps span.on { background: var(--accent); color: #fff; }

.meter { height: 6px; background: #efeae1; border-radius: 99px; overflow: hidden; margin: 0 0 16px; }
.meter > i { display: block; height: 100%; background: var(--accent); }

.item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin: 0 0 12px;
}
.item .q { font-weight: 600; margin-bottom: 12px; }
.item .num {
  display: inline-block;
  min-width: 1.6em;
  color: var(--accent);
  margin-right: 6px;
}
.likert { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.likert button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 10px 4px;
  cursor: pointer;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.3;
}
.likert button b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 2px; }
.likert button.on {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.likert button.on b { color: #fff; }
.legend { font-size: 12px; color: var(--muted); margin-bottom: 12px; }

.bars { display: grid; gap: 14px; }
.bar-row { display: grid; grid-template-columns: 110px 1fr 52px; gap: 10px; align-items: center; }
.track { height: 12px; background: #ece7de; border-radius: 99px; overflow: hidden; }
.fill { height: 100%; background: var(--accent); }
.score { font-variant-numeric: tabular-nums; font-weight: 700; }

.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td { border-bottom: 1px solid var(--line); text-align: left; padding: 8px 6px; vertical-align: top; }
.pill {
  display: inline-block;
  font-size: 12px;
  border-radius: 99px;
  padding: 2px 8px;
  background: var(--soft);
}
.pill.bad { background: var(--warn-bg); color: var(--warn); }

.result-no {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 24px;
  letter-spacing: 0.06em;
}

.footer { margin-top: 40px; color: var(--muted); font-size: 12px; }
.err { color: var(--warn); font-size: 14px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.progress { color: var(--muted); font-size: 13px; }
.doc p { max-width: 46em; }

@media (max-width: 640px) {
  .likert { grid-template-columns: repeat(3, 1fr); }
}