:root {
  --bg: #f7f8fa; --card: #fff; --ink: #1a1d24; --sub: #667085;
  --line: #e4e7ec; --brand: #2f6feb; --brand-ink: #fff;
  --hi: #12b76a; --low: #f04438; --na: #98a2b3;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a; --card: #1e2127; --ink: #e7e9ee; --sub: #98a2b3;
    --line: #2b2f37; --brand: #4d8bff; --hi: #3ddc97; --low: #ff6b5e; --na: #667085;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}
.topbar { padding: 20px 18px 8px; }
.topbar h1 { margin: 0; font-size: 22px; letter-spacing: -.02em; }
.tagline { margin: 2px 0 0; color: var(--sub); font-size: 13px; }
#app { max-width: 640px; margin: 0 auto; padding: 12px 14px 40px; }

.step { display: none; }
.step.active { display: block; animation: fade .2s ease; }

.hero-img {
  display: block; width: 100%; max-width: 340px; height: auto;
  margin: 4px auto 6px;
}
@keyframes fade { from { opacity: 0; transform: translateY(4px); } }
h2 { font-size: 17px; margin: 14px 2px; }
.calc-link {
  border: 0; background: transparent; color: var(--brand);
  font-size: 12px; font-weight: 600; cursor: pointer; vertical-align: middle; padding: 2px 4px;
}

/* 계산방식 모달 본문 */
.calc-body { max-height: 70vh; overflow-y: auto; font-size: 13px; line-height: 1.6; }
.calc-body p { margin: 8px 0; }
.calc-body h4 { margin: 16px 0 6px; font-size: 13px; color: var(--brand); }
.calc-cats { margin: 6px 0; padding-left: 18px; }
.calc-cats li { margin: 4px 0; }
.calc-note { display: block; color: var(--na); font-size: 11px; }
.calc-formula {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px; font-size: 12px; white-space: pre-wrap; word-break: keep-all; margin: 6px 0;
}
.calc-table { width: 100%; border-collapse: collapse; margin: 8px 0; font-size: 12px; }
.calc-table th, .calc-table td { border: 1px solid var(--line); padding: 5px 6px; text-align: center; }
.calc-table td:first-child, .calc-table th:first-child { text-align: left; }
.calc-tail { color: var(--sub); font-size: 12px; margin-top: 12px; }

input[type=text] {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line);
  border-radius: 10px; background: var(--card); color: var(--ink); font-size: 15px;
}
.addr-row { display: flex; gap: 8px; }
.addr-row button {
  flex: 0 0 auto; padding: 0 16px; border: 0; border-radius: 10px;
  background: var(--brand); color: var(--brand-ink); font-weight: 600; cursor: pointer;
}
.msg { min-height: 18px; margin: 8px 2px; color: var(--sub); font-size: 13px; }
.hint { color: var(--na); font-size: 12px; text-align: center; margin-top: 14px; }

.cand-list { list-style: none; padding: 0; margin: 6px 0 16px; }
.cand-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 12px; background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; margin-bottom: 6px;
}
.cand-list button {
  border: 0; background: transparent; color: var(--sub); font-size: 15px; cursor: pointer;
}

button.primary {
  width: 100%; padding: 13px; border: 0; border-radius: 10px;
  background: var(--brand); color: var(--brand-ink); font-weight: 700; font-size: 15px; cursor: pointer;
}
button.primary:disabled { opacity: .4; }
button.ghost {
  padding: 13px 16px; border: 1px solid var(--line); border-radius: 10px;
  background: transparent; color: var(--ink); cursor: pointer;
}

.presets { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.chip {
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); color: var(--ink); font-size: 13px; cursor: pointer;
}
.slider-row { margin: 14px 2px; }
.slider-row label { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 4px; }
.slider-row .wv { color: var(--brand); font-weight: 700; }
.slider-row input[type=range] { width: 100%; accent-color: var(--brand); }
.s2-actions, .s3-actions { display: flex; gap: 8px; margin-top: 22px; }
.s2-actions .primary, .s3-actions .primary { flex: 1; }

/* 결과 */
.rank { margin-bottom: 18px; }
.rank-row {
  display: grid; grid-template-columns: 24px 1fr 90px 40px; align-items: center;
  gap: 8px; padding: 8px 4px;
}
.rank-row .rk { color: var(--sub); font-weight: 700; text-align: center; }
.rank-row.win .nm { font-weight: 700; }
.rank-row .bar { height: 8px; background: var(--line); border-radius: 999px; overflow: hidden; }
.rank-row .bar span { display: block; height: 100%; background: var(--na); }
.rank-row.win .bar span { background: var(--brand); }
.rank-row .tt { text-align: right; font-weight: 700; }

/* 지도 */
#map {
  height: 340px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); margin-bottom: 8px; background: var(--line);
}
#map:empty { display: none; }
.leaflet-container { font: inherit; background: var(--bg); }

.map-focus { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 4px 2px 8px; }
.map-focus:empty { display: none; }
.map-focus .mf-label { font-size: 11px; color: var(--na); }
.mf-chip {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); font-size: 12px; cursor: pointer; color: var(--sub);
}
.mf-chip:has(input:checked) { border-color: var(--brand); color: var(--ink); }
.mf-chip input { accent-color: var(--brand); }

.df-pin.dim span { background: var(--na); opacity: .75; }
.df-cat span > i {
  position: absolute; top: -4px; right: -4px;
  width: 13px; height: 13px; border-radius: 50%; background: var(--brand);
  color: #fff; font-size: 9px; font-style: normal; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.df-cat span { position: relative; }
.df-pin span {
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50% 50% 50% 0;
  background: var(--brand); color: #fff; font-size: 13px;
  transform: rotate(-45deg); border: 2px solid #fff; box-shadow: 0 1px 5px rgba(0,0,0,.45);
}
.df-pin span b { transform: rotate(45deg); font-weight: 800; }
.df-cat span {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--card); border: 3px solid; font-size: 15px;
  box-shadow: 0 1px 4px rgba(0,0,0,.3);
}
.map-legend {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  font-size: 11px; color: var(--sub); margin-bottom: 16px; padding: 0 2px;
}
.map-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 3px; vertical-align: middle; }
.map-legend .sep { width: 1px; height: 12px; background: var(--line); }
.map-legend .ll { width: 100%; color: var(--na); font-size: 10px; margin-bottom: -2px; }

details {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 10px 12px; margin-bottom: 10px;
}
summary { cursor: pointer; font-size: 15px; }
summary b { float: right; color: var(--brand); }
.cats { display: flex; flex-wrap: wrap; gap: 10px; margin: 10px 0; font-size: 12px; color: var(--sub); }
.cats b { color: var(--ink); }
details table { width: 100%; border-collapse: collapse; margin-top: 4px; }
details td { padding: 6px 4px; border-top: 1px solid var(--line); font-size: 13px; vertical-align: top; }
details td.sc { width: 40px; text-align: right; font-weight: 700; }
details td.dt { color: var(--sub); font-size: 12px; }
tr.hi td.sc { color: var(--hi); }
tr.low td.sc { color: var(--low); }
tr.na td.sc, tr.na td.dt { color: var(--na); }
.weakline { margin: 10px 0 2px; font-size: 12px; color: var(--low); }

.foot { max-width: 640px; margin: 0 auto; padding: 8px 16px 40px; }
.foot p { color: var(--na); font-size: 11px; }

/* 피드백 */
.fb-link {
  display: block; width: 100%; margin: 16px 0 0; padding: 12px;
  border: 1px dashed var(--line); border-radius: 10px;
  background: transparent; color: var(--sub); font-size: 13px; cursor: pointer;
}
.fb-link:hover { color: var(--brand); border-color: var(--brand); }
.foot .fb-link { margin-top: 12px; }

.fb-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: flex-end; justify-content: center; z-index: 100;
}
.fb-modal[hidden] { display: none; }   /* [hidden]의 UA display:none 이 .fb-modal의 display:flex에 눌리는 것 방지 */
@media (min-width: 560px) { .fb-modal { align-items: center; } }
.fb-box {
  position: relative; width: 100%; max-width: 480px;
  background: var(--card); color: var(--ink);
  border-radius: 16px 16px 0 0; padding: 22px 18px 24px;
}
@media (min-width: 560px) { .fb-box { border-radius: 16px; } }
.fb-x {
  position: absolute; top: 12px; right: 12px; border: 0; background: transparent;
  color: var(--sub); font-size: 16px; cursor: pointer;
}
.fb-box h3 { margin: 0 0 4px; font-size: 17px; }
.fb-sub { margin: 0 0 14px; color: var(--sub); font-size: 13px; }
#fb-form { display: flex; flex-direction: column; gap: 10px; }
#fb-form textarea, #fb-form input[type=email] {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--ink); font: inherit; font-size: 14px; resize: vertical;
}
.fb-ctx { display: flex; gap: 8px; align-items: flex-start; font-size: 12px; color: var(--sub); }
.fb-ctx input { margin-top: 2px; }