/* ==========================================================================
   흉곽 리모델링 사이트 — 공용 스타일시트
   팔레트 근거: 수술실 벽·수술포의 녹회색 계열.
   적색의 보색으로 채택된 색이며, 이 사이트의 주제와 직접 연결됩니다.
   ========================================================================== */

/* --- 토큰 ---------------------------------------------------------------- */
:root {
  --ground:      #E6EBE7;  /* 수술실 녹회색 */
  --paper:       #F4F6F3;  /* 카드·표 배경 */
  --ink:         #16201D;  /* 본문 */
  --ink-soft:    #5E6C66;  /* 보조 텍스트 */
  --rule:        #C7D1CB;  /* 괘선 */
  --accent:      #2F6B5E;  /* 딥 서지컬 그린 */
  --accent-weak: #E0E9E4;
  --alert:       #9C4A2F;  /* 합병증 전용. 다른 곳에 쓰지 않음 */
  --alert-weak:  #F2E6E0;
  --fill:        #B4802A;  /* 원고 보완 표시 */
  --fill-weak:   #F6EEDC;

  --display: 'Nanum Myeongjo', serif;
  --body:    'IBM Plex Sans KR', system-ui, sans-serif;
  --mono:    'IBM Plex Mono', monospace;

  --measure: 34rem;
  --gutter:  clamp(1.25rem, 5vw, 4rem);
}

/* --- 리셋 ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* --- 레이아웃 ------------------------------------------------------------ */
.wrap {
  max-width: 62rem;
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem; top: 1rem;
  z-index: 100;
  background: var(--ink); color: var(--ground);
  padding: 0.6rem 1rem;
}

/* --- 헤더 ---------------------------------------------------------------- */
.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--ground);
}
.masthead__inner {
  max-width: 62rem;
  margin: 0 auto;
  padding: 1.1rem var(--gutter);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.9rem 1.5rem;
}
.wordmark {
  font-family: var(--display);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}
.wordmark span {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
  margin-top: 0.15rem;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.35rem;
  font-size: 0.86rem;
}
.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid transparent;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--rule); }
.nav a[aria-current='page'] { color: var(--ink); border-bottom-color: var(--accent); }

/* --- 페이지 헤드 --------------------------------------------------------- */
.pagehead {
  padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--rule);
}
.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.5rem;
}
.pagehead h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 20ch;
  word-break: keep-all;
}
.standfirst {
  margin: 1.9rem 0 0;
  max-width: var(--measure);
  font-size: 1.06rem;
  color: var(--ink-soft);
  word-break: keep-all;
}

/* --- 본문 섹션 ----------------------------------------------------------- */
main { padding-bottom: 6rem; }

.section {
  display: grid;
  grid-template-columns: 7rem minmax(0, var(--measure));
  gap: 0 2.5rem;
  padding: clamp(2.5rem, 6vw, 4.25rem) 0 0;
}
.section__marker {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  padding-top: 0.55rem;
  border-top: 2px solid var(--ink);
  align-self: start;
}
.section__marker b {
  display: block;
  font-weight: 600;
  color: var(--accent);
  font-size: 0.94rem;
  letter-spacing: 0.02em;
}
.section__body > *:first-child { margin-top: 0; }

@media (max-width: 46rem) {
  .section { grid-template-columns: minmax(0, 1fr); gap: 0.9rem; }
  .section__marker { display: inline-block; }
}

h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.1vw, 1.85rem);
  line-height: 1.45;
  margin: 0 0 1.15rem;
  word-break: keep-all;
}
h3 {
  font-family: var(--body);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: -0.005em;
  margin: 2.4rem 0 0.7rem;
  word-break: keep-all;
}
p { margin: 0 0 1.3rem; word-break: keep-all; }
strong { font-weight: 600; }

.lede { font-size: 1.09rem; }

/* --- 인용 참조 ----------------------------------------------------------- */
.ref {
  font-family: var(--mono);
  font-size: 0.68em;
  vertical-align: super;
  line-height: 0;
  color: var(--accent);
  text-decoration: none;
  padding-inline: 0.12em;
}
.ref:hover { text-decoration: underline; }

/* --- 강조 블록 ----------------------------------------------------------- */
.aside {
  border-left: 2px solid var(--accent);
  background: var(--accent-weak);
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-size: 0.95rem;
}
.aside > *:last-child { margin-bottom: 0; }

.pullquote {
  font-family: var(--display);
  font-size: clamp(1.15rem, 2.5vw, 1.42rem);
  line-height: 1.62;
  margin: 2.6rem 0;
  padding-left: 1.4rem;
  border-left: 3px solid var(--ink);
  word-break: keep-all;
}

/* 원고 보완 표시 — 게재 전 전부 제거 */
.fill {
  border: 1px dashed var(--fill);
  background: var(--fill-weak);
  padding: 1.15rem 1.4rem;
  margin: 1.8rem 0;
  font-size: 0.9rem;
  color: #6B4E17;
}
.fill::before {
  content: '원고 보완 필요';
  display: block;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fill);
  margin-bottom: 0.6rem;
}
.fill > *:last-child { margin-bottom: 0; }
.fill ul { margin: 0.4rem 0 0; padding-left: 1.1rem; }
.fill li { margin-bottom: 0.35rem; }

/* --- 목록 ---------------------------------------------------------------- */
.plain { list-style: none; padding: 0; margin: 0 0 1.4rem; }
.plain li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  word-break: keep-all;
}
.plain li:first-child { border-top: 1px solid var(--rule); }
.plain b { font-weight: 600; display: block; margin-bottom: 0.15rem; }
.plain span { color: var(--ink-soft); font-size: 0.94rem; }

ul.bullets { padding-left: 1.15rem; margin: 0 0 1.4rem; }
ul.bullets li { margin-bottom: 0.5rem; word-break: keep-all; }

/* --- 합병증 카드 (safety 전용) ------------------------------------------- */
.comp {
  border-top: 2px solid var(--alert);
  background: var(--paper);
  padding: 1.35rem 1.5rem 1.1rem;
  margin-bottom: 1.1rem;
}
.comp h3 { margin: 0 0 0.9rem; font-size: 1.05rem; color: var(--alert); }
.comp dl { margin: 0; display: grid; grid-template-columns: 4.4rem 1fr; gap: 0.45rem 1rem; }
.comp dt {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 0.3rem;
}
.comp dd { margin: 0; font-size: 0.94rem; word-break: keep-all; }

/* --- 표 ------------------------------------------------------------------ */
.tablewrap { overflow-x: auto; margin: 0 0 1.6rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; min-width: 26rem; }
th, td { text-align: left; padding: 0.75rem 0.9rem; border-bottom: 1px solid var(--rule); vertical-align: top; word-break: keep-all; }
thead th { border-bottom: 2px solid var(--ink); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.02em; }
tbody th { font-weight: 600; color: var(--ink); }

/* 좁은 화면: 3열 표를 행 단위로 쌓습니다.
   min-width 를 유지하면 3열이 컨테이너를 넘어가고, 모바일에는 스크롤바가
   보이지 않아 잘린 문장이 '깨진 것'으로 읽힙니다. */
@media (max-width: 30rem) {
  .tablewrap table { min-width: 0; }
  .tablewrap thead { position: absolute; left: -9999px; }
  .tablewrap tbody tr {
    display: block;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--rule);
  }
  .tablewrap tbody tr:first-child { border-top: 1px solid var(--rule); }
  .tablewrap tbody th,
  .tablewrap tbody td { display: block; border: 0; padding: 0; }
  .tablewrap tbody th {
    font-size: 0.98rem;
    margin-bottom: 0.1rem;
  }
  .tablewrap tbody td:first-of-type {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--accent);
    margin-bottom: 0.35rem;
  }
  .tablewrap tbody td:last-of-type { color: var(--ink-soft); }
}

/* --- 늑골 연표 (history 시그니처) --------------------------------------
   연도 | 늑골 호(弧) | 설명 3열. 호의 길이는 실제 늑골 비율(1~7 증가, 8~12 감소)을
   따르므로 세로로 쌓이면 흉곽 실루엣이 됩니다. 텍스트는 HTML이라 선택·검색·확대됩니다. */
.ribline { list-style: none; padding: 0; margin: 2.5rem 0 3rem; }
.ribline li { margin: 0; }
.ribline a {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 17rem) minmax(0, 1fr);
  align-items: center;
  gap: 0 1.1rem;
  padding: 0.55rem 0;
  text-decoration: none;
  color: inherit;
}
.ribline__yr {
  font-family: var(--mono);
  font-size: 0.86rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  text-align: right;
}
.ribline__arc { display: block; width: 100%; height: auto; overflow: visible; }
.ribline__arc path {
  fill: none;
  stroke: var(--rule);
  stroke-width: 2.5;
  stroke-linecap: round;
  transition: stroke 0.5s ease;
}
.ribline__lbl { font-size: 0.9rem; color: var(--ink-soft); word-break: keep-all; line-height: 1.5; }
.ribline__lbl b { display: block; font-weight: 600; color: var(--ink); font-size: 0.95rem; }

.ribline li.on .ribline__arc path { stroke: var(--accent); }
.ribline li.on .ribline__yr { color: var(--ink); }
.ribline li {
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.ribline li.on { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .ribline li { opacity: 1; transform: none; }
}
.ribline a:hover .ribline__lbl b { text-decoration: underline; text-underline-offset: 0.2em; }

/* 좁은 화면 — 호를 감추고 연도 + 설명만 */
@media (max-width: 44rem) {
  .ribline a {
    grid-template-columns: 4.2rem minmax(0, 1fr);
    gap: 0 0.9rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--rule);
  }
  .ribline li:first-child a { border-top: 1px solid var(--rule); }
  .ribline__arc { display: none; }
  .ribline__yr { text-align: left; }
}

/* --- 카드 그리드 (홈) ---------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 0 0 1rem;
}
.card {
  background: var(--ground);
  padding: 1.6rem 1.5rem 1.8rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: background 0.2s ease;
}
.card:hover { background: var(--paper); }
.card__no {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--accent);
  display: block;
  margin-bottom: 1rem;
}
.card h3 {
  font-family: var(--display);
  font-size: 1.18rem;
  font-weight: 700;
  margin: 0 0 0.55rem;
}
.card p { font-size: 0.9rem; color: var(--ink-soft); margin: 0; }

/* --- CTA (허용 페이지에만) ----------------------------------------------- */
.cta {
  border-top: 1px solid var(--rule);
  margin-top: 3.5rem;
  padding-top: 2rem;
}
.cta p { font-size: 0.95rem; color: var(--ink-soft); max-width: var(--measure); }
.btn {
  display: inline-block;
  font-family: var(--body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  padding: 0.75rem 1.6rem;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: #255449; border-color: #255449; }

/* --- 폼 ------------------------------------------------------------------ */
.form { max-width: var(--measure); }
.field { margin-bottom: 1.35rem; }
.field label {
  display: block;
  font-size: 0.86rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}
.field .hint { font-weight: 400; color: var(--ink-soft); font-size: 0.8rem; }
.field input,
.field select,
.field textarea {
  width: 100%;
  font-family: var(--body);
  font-size: 16px;   /* iOS 포커스 줌 방지. 16px 미만으로 내리지 마세요 */
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 0.65rem 0.8rem;
}
.field textarea { min-height: 7rem; resize: vertical; }
.consent {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 0.86rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}
.consent input { margin-top: 0.35rem; flex: none; }

/* --- 참고문헌 ------------------------------------------------------------ */
.biblio { counter-reset: r; list-style: none; padding: 0; margin: 0; font-size: 0.86rem; }
.biblio li {
  counter-increment: r;
  padding: 0.6rem 0 0.6rem 2.4rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
  color: var(--ink-soft);
  line-height: 1.6;
}
.biblio li::before {
  content: counter(r);
  position: absolute;
  left: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
}
.biblio i { font-style: italic; }
.biblio li:target { background: var(--accent-weak); }

/* --- 푸터 ---------------------------------------------------------------- */
.foot {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding: 2.5rem 0 4rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.foot__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1.8rem;
  margin-bottom: 2rem;
}
.foot h4 {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 0.8rem;
  font-weight: 500;
}
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { margin-bottom: 0.15rem; }
.foot a {
  color: var(--ink-soft);
  text-decoration: none;
  display: inline-block;
  padding: 0.35rem 0;   /* 탭 타깃 24px 확보 */
}
.foot a:hover { color: var(--ink); text-decoration: underline; }
.foot__legal { border-top: 1px solid var(--rule); padding-top: 1.5rem; font-size: 0.78rem; line-height: 1.7; }
.foot__biz { margin: 0 0 1.1rem; }
.foot__biz b { color: var(--ink); font-weight: 600; }
.foot__biz a { color: var(--ink-soft); text-decoration: none; padding: 0; }
.foot__biz a:hover { color: var(--ink); text-decoration: underline; }


/* ==========================================================================
   칼럼
   ========================================================================== */

/* 목록 */
.collist { list-style: none; padding: 0; margin: 0; }
.collist li { border-bottom: 1px solid var(--rule); }
.collist li:first-child { border-top: 1px solid var(--rule); }
.collist a {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 0 1.6rem;
  padding: 1.5rem 0;
  text-decoration: none;
  color: inherit;
}
.collist a:hover .collist__t { text-decoration: underline; text-underline-offset: 0.22em; }
.collist__meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  padding-top: 0.35rem;
}
.collist__meta b { display: block; color: var(--accent); font-weight: 500; margin-bottom: 0.2rem; }
.collist__t {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.24rem;
  line-height: 1.5;
  margin: 0 0 0.4rem;
  word-break: keep-all;
}
.collist__d { font-size: 0.92rem; color: var(--ink-soft); margin: 0; word-break: keep-all; }

@media (max-width: 40rem) {
  .collist a { grid-template-columns: minmax(0, 1fr); gap: 0.5rem; }
  .collist__meta { padding-top: 0; }
  .collist__meta b { display: inline; margin-right: 0.6rem; }
}

/* 본문 — .section 그리드 밖에서 단독으로 폭을 잡습니다.
   .section__body 안에 넣으면 그리드 컬럼 폭과 이중으로 제한되어 본문이 좁아집니다.
   시작선은 .section 의 마커 열(7rem) + gap(2.5rem) 과 같은 값을 써서
   다른 페이지의 .section__body 와 같은 정렬선에 둡니다. 그리드가 한 열로
   접히는 지점(46rem)도 .section 과 맞춥니다. */
.article {
  max-width: var(--measure);
  margin-inline-start: calc(7rem + 2.5rem);
  padding-top: clamp(2.5rem, 6vw, 4rem);
}
@media (max-width: 46rem) {
  .article { margin-inline-start: 0; }
}
.article > *:first-child { margin-top: 0; }
.article h2 {
  font-size: clamp(1.3rem, 2.8vw, 1.6rem);
  margin: 3rem 0 1rem;
}
.article p { font-size: 1.03rem; }
.article .lede { font-size: 1.14rem; color: var(--ink); }

.byline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  border-top: 2px solid var(--ink);
  padding-top: 0.8rem;
  margin-top: 2.2rem;
}
.byline b { color: var(--accent); font-weight: 500; }

.colnav {
  max-width: var(--measure);
  margin: 4rem auto 0;
  border-top: 1px solid var(--rule);
  padding-top: 1.6rem;
  font-size: 0.92rem;
}
.colnav a { display: inline-block; margin-right: 1.5rem; }