@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css");
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap");

/* Light: radiology lightbox */
:root {
  --bg: #e9eef0;
  --panel: #f4f7f8;
  --ink: #0f172a;
  --body: #1e293b;
  --muted: #475569;
  --meta: #5b6b78;
  --rule: rgba(15, 23, 42, 0.14);
  --strong-rule: #0f172a;
  --teal: #0f766e;
  --teal-soft: #d7ebe8;
  --radar: rgba(15, 118, 110, 0.55);
  --max: 1080px;
  --text: 720px;
  --mono: "IBM Plex Mono", "Pretendard Variable", Pretendard, ui-monospace, monospace;
}
/* Dark: PACS reading room */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f12;
    --panel: #11171b;
    --ink: #e6edf0;
    --body: #cdd6db;
    --muted: #9aabb4;
    --meta: #7f949e;
    --rule: rgba(230, 237, 240, 0.12);
    --strong-rule: #e6edf0;
    --teal: #5eead4;
    --teal-soft: #0f2a27;
    --radar: rgba(94, 234, 212, 0.5);
  }
}

:root[data-theme="dark"] {
    --bg: #0b0f12;
    --panel: #11171b;
    --ink: #e6edf0;
    --body: #cdd6db;
    --muted: #9aabb4;
    --meta: #7f949e;
    --rule: rgba(230, 237, 240, 0.12);
    --strong-rule: #e6edf0;
    --teal: #5eead4;
    --teal-soft: #0f2a27;
    --radar: rgba(94, 234, 212, 0.5);
}
:root[data-theme="light"] { color-scheme: light; }

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--body);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", sans-serif;
  font-size: 16px; line-height: 1.72;
  word-break: keep-all; overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
p, li { text-wrap: pretty; }
h1, h2, h3, h4 { color: var(--ink); text-wrap: balance; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.mono { font-family: var(--mono); }

/* top bar */
.bar { border-bottom: 1px solid var(--rule); background: var(--panel); }
.bar .wrap { display: flex; justify-content: space-between; align-items: center; height: 54px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 13px; font-weight: 600; letter-spacing: 0.14em; color: var(--ink); }
.brand svg { width: 20px; height: 20px; }
.bar nav { display: flex; gap: 22px; font-family: var(--mono); font-size: 12px; color: var(--meta); }
.bar nav a:hover { color: var(--teal); }

/* masthead: PACS viewport */
.mast { position: relative; padding: 46px 0 40px; border-bottom: 1px solid var(--strong-rule); overflow: hidden; }
.mast .wrap { position: relative; }
.overlay { font-family: var(--mono); font-size: 11.5px; color: var(--meta); letter-spacing: 0.02em; display: flex; justify-content: space-between; gap: 12px; }
.overlay.bottom { margin-top: 30px; }
.overlay span:last-child { text-align: right; }
.wordmark { margin: 26px 0 6px; font-weight: 800; font-size: clamp(52px, 9.5vw, 104px); line-height: 0.98; letter-spacing: -0.035em; color: var(--ink); }
.issue-tag { display: inline-flex; align-items: center; gap: 10px; margin: 14px 0 22px; font-family: var(--mono); font-size: 13px; color: var(--ink); }
.issue-tag b { font-weight: 600; border: 1.5px solid var(--teal); color: var(--teal); padding: 2px 10px; font-size: 15px; letter-spacing: 0.02em; }
.keyword { font-family: var(--mono); font-size: 13px; color: var(--teal); margin-bottom: 12px; letter-spacing: 0.02em; }
.lead { font-size: clamp(19px, 2.1vw, 21.5px); font-weight: 400; line-height: 1.62; max-width: var(--text); color: var(--ink); }
.byline { margin-top: 20px; font-family: var(--mono); font-size: 12px; color: var(--meta); letter-spacing: 0; }
.radar { position: absolute; right: -40px; top: 18px; width: 360px; height: 360px; pointer-events: none; opacity: 0.9; }
.radar circle, .radar line { stroke: var(--radar); fill: none; }
.radar .sweep { fill: url(#sweep); stroke: none; }
.radar .blip { fill: var(--teal); stroke: none; }

/* 90-second summary: measurement annotations */
.summary { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--rule); }
.summary div { padding: 24px 24px 26px 0; }
.summary div + div { padding-left: 24px; border-left: 1px solid var(--rule); }
.label { display: block; font-family: var(--mono); font-size: 12px; font-weight: 500; letter-spacing: 0.03em; color: var(--teal); margin-bottom: 7px; text-transform: uppercase; }
.summary p { font-size: 15.5px; color: var(--body); }

/* sections */
.section { padding: 60px 0 6px; }
.sec-head { display: flex; justify-content: space-between; align-items: flex-end; border-bottom: 1px solid var(--strong-rule); padding-bottom: 12px; margin-bottom: 6px; }
.sec-head .eyebrow { display: block; font-family: var(--mono); font-size: 12px; color: var(--teal); letter-spacing: 0.06em; margin-bottom: 6px; }
.sec-head h2 { font-size: clamp(26px, 3.1vw, 32px); font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.sec-head .count { font-family: var(--mono); font-size: 12px; color: var(--meta); letter-spacing: 0.04em; }

/* article */
.item { display: grid; grid-template-columns: 176px 1fr; gap: 30px; padding: 32px 0 36px; border-bottom: 1px solid var(--rule); }
.item:last-child { border-bottom: 0; }
.item .side { font-family: var(--mono); font-size: 12px; color: var(--meta); line-height: 1.65; }
.item .side .im { color: var(--teal); font-weight: 500; letter-spacing: 0.06em; margin-bottom: 8px; display: block; }
.item .side .score { display: inline-block; margin-top: 10px; color: var(--ink); border: 1px solid var(--rule); background: var(--panel); padding: 1px 8px; }
.item .side .links { margin-top: 14px; display: flex; flex-direction: column; gap: 2px; }
.item .side .links a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--rule); }
.item .side .links a:hover { color: var(--teal); text-decoration-color: var(--teal); }
.item h3 { font-size: clamp(21px, 2.3vw, 24px); font-weight: 700; line-height: 1.38; letter-spacing: -0.015em; }
.item .en { margin-top: 8px; font-size: 13.5px; color: var(--meta); font-style: italic; line-height: 1.5; max-width: var(--text); }
.item .ilead { margin-top: 16px; font-size: 17px; line-height: 1.72; max-width: var(--text); color: var(--ink); }
.item ul { margin-top: 14px; padding-left: 0; list-style: none; max-width: var(--text); }
.item ul li { position: relative; padding-left: 20px; margin: 5px 0; font-size: 15.5px; }
.item ul li::before { content: ""; position: absolute; left: 2px; top: 0.62em; width: 7px; height: 7px; border: 1.5px solid var(--teal); border-radius: 50%; }
.notes { margin-top: 20px; display: grid; gap: 14px; max-width: var(--text); }
.notes p { font-size: 15.5px; }
.seed { margin-top: 22px; max-width: var(--text); background: var(--teal-soft); padding: 16px 20px 18px; border-left: 3px solid var(--teal); }
.seed p { font-size: 15.5px; color: var(--ink); }

/* grids */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); }
.grid3 > div { padding: 26px 24px 28px 0; }
.grid3 > div + div { padding-left: 24px; border-left: 1px solid var(--rule); }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); }
.grid2 > div { padding: 24px 26px 26px 0; border-bottom: 1px solid var(--rule); }
.grid2 > div:nth-child(2n) { padding-left: 26px; border-left: 1px solid var(--rule); }
.card .tag { display: block; font-family: var(--mono); font-size: 11.5px; color: var(--teal); letter-spacing: 0.06em; margin-bottom: 6px; }
.card h4 { font-size: 18px; font-weight: 700; line-height: 1.42; letter-spacing: -0.01em; margin-bottom: 8px; }
.card p { font-size: 15px; }
.card .src { margin-top: 12px; font-family: var(--mono); font-size: 12px; color: var(--meta); display: flex; flex-wrap: wrap; gap: 4px 12px; }
.card .src a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--rule); }
.card .src a:hover { color: var(--teal); }

/* news */
.news { list-style: none; }
.news li { display: grid; grid-template-columns: 84px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--rule); }
.news li:last-child { border-bottom: 0; }
.news .d { font-family: var(--mono); font-size: 12px; color: var(--teal); padding-top: 4px; }
.news h4 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.news p { font-size: 15.5px; max-width: var(--text); }
.news .src { margin-top: 6px; font-family: var(--mono); font-size: 12px; color: var(--meta); }
.news .src a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--rule); }

/* takeaways */
.concl { list-style: none; counter-reset: c; }
.concl li { counter-increment: c; display: grid; grid-template-columns: 70px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--rule); font-size: 18px; line-height: 1.6; color: var(--ink); }
.concl li:last-child { border-bottom: 0; }
.concl li::before { content: counter(c) "."; font-family: var(--mono); font-size: 12.5px; color: var(--teal); padding-top: 6px; letter-spacing: 0.06em; }

/* footer */
.foot { margin-top: 70px; border-top: 1px solid var(--strong-rule); padding: 24px 0 60px; }
.foot .disc { font-size: 13.5px; color: var(--muted); max-width: var(--text); }
.foot .row { margin-top: 22px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-family: var(--mono); font-size: 12px; color: var(--meta); }
.foot button { font-family: var(--mono); font-size: 12px; background: var(--teal); color: var(--bg); border: 0; padding: 8px 14px; cursor: pointer; }

/* archive */
.issue-list { list-style: none; }
.issue-list li a { display: grid; grid-template-columns: 110px 1fr 120px; gap: 20px; align-items: baseline; padding: 22px 0; border-bottom: 1px solid var(--rule); }
.issue-list .n { font-family: var(--mono); font-weight: 600; font-size: 15px; color: var(--teal); }
.issue-list h3 { font-size: 20px; font-weight: 700; }
.issue-list .d { font-family: var(--mono); font-size: 12px; color: var(--meta); text-align: right; }
.issue-list a:hover h3 { color: var(--teal); }

@media (max-width: 1120px) {
  .radar { width: 260px; height: 260px; right: -60px; opacity: 0.5; }
}
@media (max-width: 820px) {
  .wrap { padding: 0 20px; }
  .radar { width: 220px; height: 220px; right: -70px; top: 30px; opacity: 0.55; }
  .summary, .grid3 { grid-template-columns: 1fr; }
  .summary div, .grid3 > div { padding: 18px 0; border-left: 0 !important; padding-left: 0 !important; border-bottom: 1px solid var(--rule); }
  .grid2 { grid-template-columns: 1fr; }
  .grid2 > div { padding: 22px 0 !important; border-left: 0 !important; }
  .item { grid-template-columns: 1fr; gap: 12px; }
  .item .side .links { flex-direction: row; flex-wrap: wrap; gap: 4px 14px; }
  .news li { grid-template-columns: 1fr; gap: 4px; }
  .concl li { grid-template-columns: 44px 1fr; font-size: 16.5px; }
  .issue-list li a { grid-template-columns: 64px 1fr; }
  .issue-list .d { grid-column: 2; text-align: left; }
  .overlay { font-size: 10.5px; }
}

/* Korean text inside technical labels: use the text face so word spacing stays natural */
.ko { font-family: "Pretendard Variable", Pretendard, -apple-system, sans-serif; letter-spacing: 0; }
.label.ko { font-weight: 700; font-size: 13px; }
.keyword .ko { font-weight: 700; font-size: 14px; }
.byline .ko, .overlay .ko { font-size: 12.5px; }