/* ==========================================================================
 * 여행 예산 계산기 — 스타일
 * 색 토큰은 라이트 기준으로 :root 에 전부 정의하고,
 * 다크는 OS 설정(media)과 수동 토글(data-theme) 양쪽에서 덮어씁니다.
 * ==========================================================================*/

:root {
  color-scheme: light;

  /* 표면 / 잉크 */
  --plane:        #f9f9f7;
  --surface:      #fcfcfb;
  --surface-2:    #f3f2ee;
  --ink:          #0b0b0b;
  --ink-2:        #52514e;
  --ink-muted:    #898781;
  --grid:         #e1e0d9;
  --line:         #c3c2b7;
  --border:       rgba(11, 11, 11, .10);
  --accent:       #2a78d6;
  --accent-ink:   #ffffff;
  --good:         #006300;

  /* 카테고리 색 (고정 순서 — 절대 순환시키지 않음) */
  --series-1: #2a78d6;  /* 항공  */
  --series-2: #eb6834;  /* 숙박  */
  --series-3: #1baf7a;  /* 도시간 이동 */
  --series-4: #eda100;  /* 식비  */
  --series-5: #e87ba4;  /* 현지 교통 */
  --series-6: #008300;  /* 관광  */
  --series-7: #4a3aa7;  /* 쇼핑  */
  --series-8: #e34948;  /* 기타  */

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(11,11,11,.05), 0 8px 24px rgba(11,11,11,.06);
  --font: system-ui, -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --plane:     #0d0d0d;
    --surface:   #1a1a19;
    --surface-2: #232322;
    --ink:       #ffffff;
    --ink-2:     #c3c2b7;
    --ink-muted: #898781;
    --grid:      #2c2c2a;
    --line:      #383835;
    --border:    rgba(255,255,255,.10);
    --accent:    #3987e5;
    --good:      #0ca30c;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --plane:     #0d0d0d;
  --surface:   #1a1a19;
  --surface-2: #232322;
  --ink:       #ffffff;
  --ink-2:     #c3c2b7;
  --ink-muted: #898781;
  --grid:      #2c2c2a;
  --line:      #383835;
  --border:    rgba(255,255,255,.10);
  --accent:    #3987e5;
  --good:      #0ca30c;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--plane);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -.01em; }
button, input, select { font: inherit; color: inherit; }
a { color: var(--accent); }

/* ── 헤더 ───────────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 20px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar .brand { display: flex; align-items: baseline; gap: 10px; }
.topbar h1 { font-size: 18px; }
.topbar .sub { color: var(--ink-muted); font-size: 12.5px; }
.topbar .spacer { flex: 1; }

.icon-btn {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 6px 12px; cursor: pointer;
  font-size: 13px; color: var(--ink-2); white-space: nowrap;
}
.icon-btn:hover { border-color: var(--line); color: var(--ink); }

/* ── 레이아웃 ───────────────────────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 20px;
  max-width: 1360px;
  margin: 0 auto;
  padding: 20px;
  align-items: start;
}
@media (max-width: 1080px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .summary-col { position: static !important; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.card > h2 {
  font-size: 15px; margin-bottom: 4px;
  display: flex; align-items: center; gap: 8px;
}
.card > .hint { color: var(--ink-muted); font-size: 12.5px; margin: 0 0 14px; }
.step-no {
  display: inline-grid; place-items: center;
  width: 22px; height: 22px; border-radius: 999px;
  background: var(--accent); color: var(--accent-ink);
  font-size: 12px; font-weight: 700;
}

/* ── 폼 ─────────────────────────────────────────────────── */
.field-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
label.field { display: block; }
label.field > span {
  display: block; font-size: 12px; color: var(--ink-2);
  margin-bottom: 5px; font-weight: 600;
}
select, input[type="number"], input[type="text"] {
  width: 100%; padding: 8px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
select:focus, input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.stepper { display: flex; align-items: stretch; gap: 0; }
.stepper button {
  width: 36px; background: var(--surface-2); border: 1px solid var(--border);
  cursor: pointer; font-size: 16px; color: var(--ink-2);
}
.stepper button:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.stepper button:last-child  { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.stepper input { border-radius: 0; text-align: center; border-left: 0; border-right: 0; }

.chk { display: flex; align-items: flex-start; gap: 8px; padding: 5px 0; cursor: pointer; font-size: 13.5px; }
.chk input { margin-top: 3px; accent-color: var(--accent); flex: none; }
.chk .price { color: var(--ink-2); font-variant-numeric: tabular-nums; }
.chk .free { color: var(--good); font-weight: 600; }

/* ── 나라 / 도시 선택 ───────────────────────────────────── */
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  border: 1px solid var(--border); background: var(--surface-2);
  border-radius: 999px; padding: 7px 14px; cursor: pointer; font-size: 13.5px;
  display: inline-flex; align-items: center; gap: 6px;
}
.pill:hover { border-color: var(--line); }
.pill[aria-pressed="true"] {
  background: var(--accent); color: var(--accent-ink); border-color: var(--accent);
}
.pill .sub { font-size: 11.5px; opacity: .75; }
/* 일정에 담긴 도시 — 방문 순번을 달고, 다시 누르면 빠진다 */
.pill-no {
  display: inline-grid; place-items: center;
  width: 17px; height: 17px; border-radius: 5px; flex: none;
  background: var(--accent-ink); color: var(--accent);
  font-size: 11px; font-weight: 800;
}
#city-pills .pill[aria-pressed="true"] .sub { opacity: .9; font-weight: 700; }

.subgroup-title {
  grid-column: 1/-1; font-size: 11.5px; color: var(--ink-muted);
  font-weight: 700; margin: 10px 0 2px; text-transform: none;
}

/* ── 여행지 카드 ────────────────────────────────────────── */
.leg {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface-2); margin-bottom: 12px; overflow: hidden;
}
.leg-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; cursor: pointer; user-select: none;
}
.leg-order {
  display: inline-grid; place-items: center; width: 24px; height: 24px;
  border-radius: 6px; background: var(--accent); color: var(--accent-ink);
  font-size: 12px; font-weight: 700; flex: none;
}
.leg-title { font-weight: 700; }
.leg-meta { color: var(--ink-muted); font-size: 12.5px; }
.leg-sum { margin-left: auto; font-variant-numeric: tabular-nums; font-weight: 700; }
.leg-tools { display: flex; gap: 4px; }
.leg-tools button {
  background: none; border: 1px solid transparent; border-radius: 6px;
  width: 26px; height: 26px; cursor: pointer; color: var(--ink-muted);
}
.leg-tools button:hover { border-color: var(--border); color: var(--ink); }
.leg-body { padding: 0 14px 14px; display: none; }
.leg.open .leg-body { display: block; }
.leg-body h4 {
  font-size: 12px; color: var(--ink-2); margin: 16px 0 4px;
  padding-top: 12px; border-top: 1px solid var(--grid);
}
.cols-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 2px 20px; }

.qty-row {
  display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 13.5px;
}
.qty-row .name { flex: 1; }
.qty-row .price { color: var(--ink-muted); font-variant-numeric: tabular-nums; font-size: 12.5px; }
.qty-row input { width: 58px; text-align: center; padding: 4px; }

.tipline {
  margin-top: 12px; padding: 9px 11px; font-size: 12.5px;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  border-left: 3px solid var(--accent); border-radius: 0 6px 6px 0; color: var(--ink-2);
}

/* ── 날씨 패널 ──────────────────────────────────────────── */
.weather {
  margin-top: 12px; padding: 11px 13px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.weather-head { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-bottom: 8px; }
.weather-head b { font-size: 13px; }
.wchip {
  font-size: 11.5px; padding: 2px 8px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border);
  font-variant-numeric: tabular-nums; color: var(--ink-2);
}
.wchip.rainy { background: color-mix(in srgb, var(--series-1) 18%, var(--surface)); border-color: var(--series-1); color: var(--ink); font-weight: 600; }
.wsub { font-size: 11.5px; color: var(--ink-muted); margin-left: auto; }
.wline { font-size: 12.5px; color: var(--ink-2); padding: 2px 0; }
.wline b { color: var(--ink); font-weight: 600; margin-right: 3px; }
.wline.note { color: var(--ink); }

/* ── 꿀팁 ───────────────────────────────────────────────── */
ul.tips { list-style: none; margin: 4px 0 0; padding: 0; }
.tip {
  font-size: 12.5px; line-height: 1.5; color: var(--ink-2);
  padding: 7px 0 7px 0; border-bottom: 1px solid var(--grid);
}
.tip:last-child { border-bottom: 0; }
.tip-tag {
  display: inline-block; font-size: 11px; font-weight: 700;
  padding: 1px 7px; border-radius: 999px; margin-right: 7px;
  background: var(--surface); border: 1px solid var(--border); color: var(--ink-2);
  white-space: nowrap;
}
.tip-save .tip-tag { border-color: var(--series-6); color: var(--good); }
.tip-warn .tip-tag { border-color: var(--series-8); color: var(--series-8); }
.tip-move .tip-tag { border-color: var(--series-1); color: var(--series-1); }

/* ── 기념품 (적정가 vs 관광지가) ─────────────────────────── */
.souv-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2px 20px; }
.souv {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 8px 0; border-bottom: 1px solid var(--grid);
}
.souv-main { flex: 1; min-width: 0; }
.souv-name { font-size: 13.5px; font-weight: 600; }
.souv-price { font-size: 12px; font-variant-numeric: tabular-nums; margin-top: 1px; }
.souv-price .fair { color: var(--good); font-weight: 700; }
.souv-price .rip { color: var(--ink-muted); text-decoration: line-through; margin-left: 6px; }
.souv-price .gap { color: var(--series-8); font-weight: 700; margin-left: 4px; }
.souv-price .fixed { color: var(--ink-muted); margin-left: 6px; }
.souv-where { font-size: 11.5px; color: var(--ink-muted); margin-top: 2px; }
.souv input { width: 56px; text-align: center; padding: 5px; flex: none; }

/* ── 시기 안내 박스 ─────────────────────────────────────── */
.season-box {
  padding: 10px 12px; margin-bottom: 14px;
  background: var(--surface-2); border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.season-line { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.grade {
  font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px;
  border: 1px solid var(--border);
}
.grade-good  { color: var(--good);      border-color: var(--good); }
.grade-plain { color: var(--ink-2); }
.grade-warn  { color: var(--series-4);  border-color: var(--series-4); }
.grade-peak  { color: var(--series-8);  border-color: var(--series-8); }
.season-meta { font-size: 12px; color: var(--ink-muted); font-variant-numeric: tabular-nums; }
.season-note { font-size: 12.5px; color: var(--ink-2); margin-top: 7px; line-height: 1.5; }
.season-save {
  font-size: 12.5px; margin-top: 8px; padding-top: 8px;
  border-top: 1px solid var(--grid); color: var(--ink);
}
.season-save b { color: var(--good); }

/* ── 기념품 절약 안내 ───────────────────────────────────── */
.shop-saving {
  margin-top: 12px; padding: 10px 12px; font-size: 12.5px; line-height: 1.55;
  background: var(--surface-2); border-radius: var(--radius-sm);
  border-left: 3px solid var(--series-7); color: var(--ink-2);
}
.shop-saving b { color: var(--ink); }
.shop-saving b.pos { color: var(--good); }

.tdsub { display: block; font-size: 11px; color: var(--ink-muted); text-decoration: line-through; }

label.field > span small { font-weight: 400; color: var(--ink-muted); }
.leg-body h4 small { font-weight: 400; color: var(--ink-muted); font-size: 11px; }

/* ── 관광지 툴팁 (사진 + 설명) ──────────────────────────── */
.chk-row { display: flex; align-items: flex-start; gap: 4px; }
.chk-row .chk { flex: 1; min-width: 0; }
.chk[data-tip] { border-radius: 6px; }
.chk[data-tip]:hover { background: var(--surface); }
.chk[data-tip]:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.chk-h {
  font-size: 11px; color: var(--ink-muted); margin-left: 5px;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}

/* 미리보기 버튼 — 마우스가 없는 기기에서만 보인다 */
.info-btn {
  display: none; flex: none; place-items: center;
  width: 34px; height: 34px; margin-top: 1px;
  background: none; border: 1px solid var(--border); border-radius: 8px;
  color: var(--ink-muted); font-size: 15px; cursor: pointer;
}
.info-btn:active { background: var(--surface-2); }
@media (hover: none), (pointer: coarse) {
  .info-btn { display: grid; }
}

.tip-backdrop {
  position: fixed; inset: 0; z-index: 55; background: rgba(0,0,0,.45);
  opacity: 0; visibility: hidden; transition: opacity .18s;
}
.tip-backdrop.on { opacity: 1; visibility: visible; }
body.tip-open { overflow: hidden; }

.tip-card {
  position: absolute; z-index: 60; pointer-events: auto;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: 0 8px 32px rgba(0,0,0,.28);
  overflow: hidden; opacity: 0; visibility: hidden;
  transform: translateY(4px); transition: opacity .12s, transform .12s;
}
.tip-card.on { opacity: 1; visibility: visible; transform: translateY(0); }

/* 모바일: 화면 아래에서 올라오는 시트 — 체크박스를 가리지 않는다 */
.tip-card.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; top: auto;
  width: auto; max-height: 82vh; overflow-y: auto;
  border-radius: 18px 18px 0 0; border-bottom: 0;
  transform: translateY(100%); transition: transform .22s ease, opacity .18s;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.tip-card.sheet.on { transform: translateY(0); }
.tip-card.sheet .tc-photo { height: 200px; }
.tip-card.sheet .tc-body { padding: 14px 18px 22px; }
.tip-card.sheet .tc-title { font-size: 17px; }
.tip-card.sheet .tc-desc,
.tip-card.sheet .tc-best { font-size: 14px; }
.tc-close {
  position: absolute; top: 10px; right: 10px; z-index: 2;
  width: 34px; height: 34px; border-radius: 999px; cursor: pointer;
  background: rgba(0,0,0,.55); color: #fff; border: 0; font-size: 15px;
}
.tc-photo { height: 150px; background: var(--surface-2); }
.tc-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tc-noimg {
  height: 100%; display: grid; place-content: center; gap: 4px; justify-items: center;
  color: var(--ink-muted); font-size: 22px;
}
.tc-noimg span { font-size: 11.5px; }
.tc-body { padding: 11px 13px 12px; }
.tc-title { font-weight: 700; font-size: 14px; line-height: 1.3; }
.tc-meta {
  font-size: 11.5px; color: var(--ink-2); margin-top: 5px;
  font-variant-numeric: tabular-nums;
}
.tc-meta .tc-fee { color: var(--ink); font-weight: 700; }
.tc-meta .tc-free { color: var(--good); font-weight: 700; }
.tc-dot { margin: 0 5px; color: var(--ink-muted); }
.tc-desc { font-size: 12.5px; line-height: 1.5; color: var(--ink-2); margin: 8px 0 0; }
.tc-best {
  font-size: 12px; line-height: 1.5; margin: 8px 0 0; padding: 6px 8px;
  background: var(--surface-2); border-radius: 6px; color: var(--ink);
}
.tc-src { font-size: 10.5px; color: var(--ink-muted); margin-top: 8px; }

/* ── 추천 코스 (관광지 목록 위에 간단히) ─────────────────── */
.course-box {
  margin-top: 14px; padding: 11px 13px;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--accent); border-radius: var(--radius-sm);
}
.course-head { font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.course-head small { font-weight: 400; color: var(--ink-muted); font-size: 11.5px; margin-left: 4px; }
ol.course { list-style: none; margin: 0; padding: 0; }
.course-day {
  display: flex; align-items: baseline; gap: 9px;
  padding: 4px 0; font-size: 13px;
}
.cd-no {
  flex: none; font-size: 11px; font-weight: 700; color: var(--accent-ink);
  background: var(--accent); border-radius: 4px; padding: 1px 7px;
}
.cd-route { flex: 1; line-height: 1.6; color: var(--ink); }
.cd-arrow { color: var(--ink-muted); }
.course-free { font-size: 12.5px; color: var(--ink-muted); padding: 4px 0 0; }
.course-warn {
  font-size: 12px; margin: 8px 0 0; padding: 7px 9px; border-radius: 6px;
  background: color-mix(in srgb, var(--series-4) 14%, var(--surface)); color: var(--ink);
}
.course-pass { font-size: 12px; color: var(--ink-2); margin: 7px 0 0; }

/* ── 이동 구간 ──────────────────────────────────────────── */
.transfer {
  display: grid; grid-template-columns: 1fr 150px; gap: 10px; align-items: center;
  padding: 10px 14px; margin-bottom: 12px;
  border: 1px dashed var(--line); border-radius: var(--radius);
}
.transfer .route { font-size: 13.5px; font-weight: 600; }
.transfer .quote { font-size: 12.5px; color: var(--ink-muted); font-variant-numeric: tabular-nums; }
.transfer .quote.warn { color: var(--series-8); }

/* ── 요약 패널 ──────────────────────────────────────────── */
.summary-col { position: sticky; top: 76px; }

.hero {
  text-align: center; padding: 6px 0 14px; border-bottom: 1px solid var(--grid);
}
.hero .label { font-size: 12px; color: var(--ink-muted); }
.hero .value { font-size: 34px; font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.hero .value small { font-size: 18px; font-weight: 700; margin-left: 2px; }

.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--grid); margin: 14px 0; border-radius: var(--radius-sm); overflow: hidden; }
.stat { background: var(--surface); padding: 10px 8px; text-align: center; }
.stat .k { font-size: 11px; color: var(--ink-muted); }
.stat .v { font-size: 15px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* 구성 막대 (스택) — 세그먼트 사이 2px 표면 간격 */
.composition {
  display: flex; height: 12px; border-radius: 4px; overflow: hidden;
  background: var(--grid); margin: 6px 0 14px; gap: 2px;
}
.composition span { display: block; height: 100%; }

.cat-list { list-style: none; margin: 0; padding: 0; }
.cat-list li { padding: 7px 0; border-bottom: 1px solid var(--grid); }
.cat-list li:last-child { border-bottom: 0; }
.cat-top { display: flex; align-items: center; gap: 8px; font-size: 13.5px; }
.swatch { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.cat-name { flex: 1; }
.cat-amt { font-variant-numeric: tabular-nums; font-weight: 700; }
.cat-pct { color: var(--ink-muted); font-size: 12px; width: 42px; text-align: right; font-variant-numeric: tabular-nums; }
.cat-bar { height: 6px; border-radius: 0 3px 3px 0; margin-top: 5px; background: var(--grid); }
.cat-bar span { display: block; height: 100%; border-radius: 0 3px 3px 0; }

.total-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 8px 0; font-size: 13.5px; color: var(--ink-2);
}
.total-row.grand { border-top: 2px solid var(--line); margin-top: 6px; padding-top: 12px; font-size: 15px; color: var(--ink); font-weight: 700; }
.total-row b { font-variant-numeric: tabular-nums; }

.notes { margin-top: 14px; padding: 0; list-style: none; }
.notes li {
  font-size: 12.5px; color: var(--ink-2); padding: 7px 10px; margin-bottom: 6px;
  background: var(--surface-2); border-radius: 6px; border-left: 3px solid var(--series-4);
}

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.actions button { flex: 1 1 auto; }
.btn-primary {
  background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent);
  border-radius: var(--radius-sm); padding: 9px 14px; cursor: pointer; font-weight: 600;
}
.btn-primary:hover { filter: brightness(1.06); }

/* ── 표 보기 ────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin-top: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 13px; min-width: 420px; }
th, td { padding: 7px 10px; text-align: left; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th { color: var(--ink-2); font-size: 11.5px; font-weight: 700; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:last-child td { border-bottom: 0; }
tfoot td { font-weight: 700; border-top: 2px solid var(--line); }

details.detail { margin-top: 14px; }
details.detail > summary {
  cursor: pointer; font-size: 13px; color: var(--ink-2);
  padding: 8px 0; list-style: none;
}
details.detail > summary::-webkit-details-marker { display: none; }
details.detail > summary::before { content: '▸ '; }
details.detail[open] > summary::before { content: '▾ '; }

.empty { color: var(--ink-muted); font-size: 13.5px; padding: 20px; text-align: center; }

.footer { max-width: 1360px; margin: 0 auto; padding: 8px 20px 40px; color: var(--ink-muted); font-size: 12px; }

/* ── 모바일 가독성 ──────────────────────────────────────── */
@media (max-width: 640px) {
  html, body { font-size: 16px; }

  .topbar { padding: 10px 14px; gap: 8px; }
  .topbar h1 { font-size: 16px; }
  .topbar .sub { display: none; }
  .icon-btn { padding: 7px 10px; font-size: 12.5px; }

  .layout { padding: 14px 12px; gap: 14px; }
  .card { padding: 15px 14px; margin-bottom: 14px; }
  .card > h2 { font-size: 16px; }
  .card > .hint { font-size: 13px; line-height: 1.6; }

  /* 입력 항목은 한 줄에 하나씩 — 좁은 화면에서 두 칸은 너무 답답하다 */
  .field-grid { grid-template-columns: 1fr; gap: 14px; }
  .cols-2 { grid-template-columns: 1fr; }
  .souv-list { grid-template-columns: 1fr; }
  select, input[type="number"], input[type="text"] { padding: 11px 12px; font-size: 16px; }
  .stepper button { width: 46px; font-size: 20px; }

  /* 손가락으로 누를 수 있는 크기 확보 */
  .chk { padding: 9px 0; font-size: 14.5px; line-height: 1.5; }
  .chk input { width: 20px; height: 20px; margin-top: 1px; }
  .pill { padding: 9px 14px; font-size: 14px; }

  .leg-head { padding: 13px 12px; flex-wrap: wrap; gap: 8px; }
  .leg-title { font-size: 15px; }
  .leg-sum { font-size: 14px; }
  .leg-tools button { width: 32px; height: 32px; }
  .leg-body { padding: 0 12px 14px; }
  .leg-body h4 { font-size: 13px; }

  .weather-head { gap: 6px; }
  .wsub { margin-left: 0; width: 100%; }
  .wline { font-size: 13.5px; line-height: 1.6; }

  .souv { padding: 11px 0; }
  .souv-name { font-size: 14.5px; }
  .souv-price { font-size: 13px; }
  .souv-where { font-size: 12.5px; line-height: 1.5; }
  .souv input { width: 62px; padding: 9px 4px; }

  .tip { font-size: 13.5px; line-height: 1.6; padding: 10px 0; }

  /* 이동 구간은 위아래로 쌓는다 */
  .transfer { grid-template-columns: 1fr; gap: 8px; padding: 12px; }

  .course-box { padding: 12px; }
  .course-day { font-size: 13.5px; align-items: flex-start; }
  .cd-route { line-height: 1.7; }

  .hero .value { font-size: 30px; }
  .cat-top { font-size: 14px; }
  .notes li, .shop-saving, .season-note { font-size: 13.5px; line-height: 1.6; }

  .actions button { flex: 1 1 46%; padding: 11px 10px; }
  .footer { padding: 8px 14px 40px; font-size: 12.5px; }
}

/* ── 인쇄 ───────────────────────────────────────────────── */
@media print {
  .topbar, .actions, .form-col .leg-tools, .icon-btn { display: none !important; }
  .layout { grid-template-columns: 1fr; }
  .card { box-shadow: none; break-inside: avoid; }
  .summary-col { position: static; }
}