/* ============================================================================
   trend-magazine-festival — Vol.1 디자인 토큰 + 매거진 레이아웃
   ----------------------------------------------------------------------------
   생성: cycle 219 (2026-05-25)
   참조: FG 뉴스레터 연장선, 정보 밀도 높은 매거진형
   ============================================================================ */

@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@400;700;900&display=swap");
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");

:root {
  /* === Color tokens === */
  --ink: #1A1A1A;
  --paper: #FAF8F3;
  --paper-card: #FFFFFF;
  --festival-red: #C8392E;
  --data-blue: #2B4C7E;
  --muted: #8B8579;
  --rule: #1A1A1A;        /* 두꺼운 가로선 */
  --rule-soft: #E5E1D6;   /* 약한 가로선 */

  /* === Typography === */
  --font-serif: "Noto Serif KR", "Noto Serif CJK KR", serif;
  --font-sans:  "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
                "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;

  /* === Layout === */
  --max-w: 1080px;
  --gutter: 32px;
  --rail-w: 280px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "ss01", "tnum";
  -webkit-font-smoothing: antialiased;
}

a { color: var(--data-blue); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: var(--data-blue); }

/* === Container === */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px var(--gutter) 96px;
}

/* === Masthead === */
.masthead {
  border-top: 8px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding: 28px 0 20px;
  margin-bottom: 40px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 24px;
}
.masthead .title {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 48px;
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin: 0;
}
.masthead .subtitle {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 15px;
  color: var(--muted);
  margin-top: 8px;
  letter-spacing: 0.02em;
}
.masthead .issue-meta {
  text-align: right;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}
.masthead .issue-meta .vol {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--festival-red);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}

/* === Version switch === */
.version-switch {
  display: inline-flex;
  gap: 0;
  margin-bottom: 32px;
  border: 1px solid var(--ink);
  border-radius: 2px;
}
.version-switch a {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 18px;
  color: var(--ink);
  background: transparent;
  border: none;
  border-right: 1px solid var(--ink);
  font-weight: 600;
}
.version-switch a:last-child { border-right: none; }
.version-switch a.current {
  background: var(--ink);
  color: var(--paper);
}

/* === Issue Brief === */
.issue-brief {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.6;
  color: var(--ink);
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 48px;
  max-width: 820px;
}
.issue-brief .lead-mark {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 60px;
  line-height: 0.8;
  color: var(--festival-red);
  float: left;
  margin: 6px 14px -4px 0;
}

/* === Section === */
.section {
  margin: 64px 0;
}
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: baseline;
  border-top: 3px solid var(--ink);
  padding-top: 18px;
  margin-bottom: 28px;
}
.section-head .num {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 14px;
  color: var(--festival-red);
  letter-spacing: 0.16em;
  font-variant-numeric: tabular-nums;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 30px;
  line-height: 1.2;
  margin: 0;
}
.section-head .kicker {
  grid-column: 2;
  font-size: 13px;
  color: var(--muted);
  margin-top: 4px;
}

/* === Trend list (Section 01) === */
.trend-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.trend-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: start;
}
.trend-item .rank {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 56px;
  line-height: 0.9;
  color: var(--festival-red);
  font-variant-numeric: tabular-nums;
}
.trend-item .body h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 22px;
  margin: 0 0 8px;
  line-height: 1.3;
}
.trend-item .body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: #333;
}
.trend-item .body .source-row {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.trend-item .body .source-row .pill {
  display: inline-block;
  padding: 2px 8px;
  background: var(--paper-card);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  margin-right: 6px;
  font-size: 11px;
  letter-spacing: 0.04em;
}
.trend-item .meta {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

/* === Deep dive (Section 02) === */
.dive-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.dive-card {
  background: var(--paper-card);
  border: 1px solid var(--rule-soft);
  padding: 24px 24px 20px;
  border-radius: 2px;
}
.dive-card .case-num {
  font-family: var(--font-serif);
  font-size: 12px;
  color: var(--festival-red);
  letter-spacing: 0.16em;
  font-weight: 700;
}
.dive-card h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  margin: 6px 0 14px;
  line-height: 1.3;
}
.dive-card .case-meta {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  padding: 8px 0;
  margin: 12px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.dive-card .case-meta dt {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}
.dive-card .case-meta dd {
  margin: 2px 0 0;
  font-size: 14px;
  color: var(--ink);
  font-weight: 600;
}
.dive-card p {
  font-size: 14.5px;
  line-height: 1.65;
  margin: 8px 0;
}

/* Public 단일 deep dive (와이드) */
.dive-grid.single { grid-template-columns: 1fr; }
.dive-grid.single .dive-card .case-meta {
  grid-template-columns: repeat(4, 1fr);
}

/* === Data section (Section 03) === */
.data-block {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 40px;
  align-items: start;
}
.data-block.single { grid-template-columns: 1fr; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
}
.data-table th, .data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--rule-soft);
}
.data-table th {
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 2px solid var(--ink);
}
.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table td.bar-cell {
  width: 30%;
}
.bar-track {
  height: 8px;
  background: var(--rule-soft);
  border-radius: 1px;
  position: relative;
}
.bar-track .bar-fill {
  height: 100%;
  background: var(--festival-red);
  border-radius: 1px;
}
.chart-wrap {
  background: var(--paper-card);
  border: 1px solid var(--rule-soft);
  padding: 20px;
  border-radius: 2px;
}
.chart-wrap .chart-caption {
  font-size: 12px;
  color: var(--muted);
  margin-top: 12px;
  font-variant-numeric: tabular-nums;
}
.note {
  background: var(--paper-card);
  border-left: 3px solid var(--data-blue);
  padding: 14px 18px;
  font-size: 14px;
  color: var(--ink);
  margin-top: 24px;
  line-height: 1.65;
}
.note strong { color: var(--data-blue); }

/* === Editor insight (Section 04) === */
.editor-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.editor-block.single { grid-template-columns: 1fr; max-width: 820px; }
.action-list { list-style: none; padding: 0; margin: 0; }
.action-list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule-soft);
  align-items: start;
}
.action-list .marker {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 18px;
  color: var(--festival-red);
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
}
.action-list .label {
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  display: block;
  margin-bottom: 4px;
}
.action-list .desc { font-size: 14px; color: #333; line-height: 1.6; }
.editorial {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 760px;
}
.editorial p { margin: 16px 0; }
.editorial .signoff {
  margin-top: 28px;
  font-style: italic;
  color: var(--muted);
  font-size: 14px;
  font-family: var(--font-sans);
}

/* === Next issue (Section 05) === */
.next-grid {
  background: var(--ink);
  color: var(--paper);
  padding: 32px;
  border-radius: 2px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
}
.next-grid .label {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 14px;
  color: var(--festival-red);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.next-grid h3 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.3;
  margin: 8px 0 0;
  color: var(--paper);
}
.next-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.next-grid ul li {
  font-size: 14px;
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
}
.next-grid ul li::before {
  content: "▸";
  color: var(--festival-red);
  position: absolute;
  left: 0;
}

/* === Colophon === */
.colophon {
  border-top: 3px solid var(--ink);
  margin-top: 80px;
  padding-top: 24px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.colophon h4 {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 700;
  margin: 0 0 6px;
}
.colophon p { margin: 0; line-height: 1.6; }

/* === Index page === */
.index-intro {
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 720px;
  margin: 0 0 48px;
}
.issue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  list-style: none;
  padding: 0;
}
.issue-card {
  background: var(--paper-card);
  border: 1px solid var(--rule-soft);
  border-top: 4px solid var(--festival-red);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.15s ease;
}
.issue-card:hover { transform: translateY(-2px); }
.issue-card .vol-label {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 14px;
  color: var(--festival-red);
  letter-spacing: 0.12em;
}
.issue-card .period {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.1;
  color: var(--ink);
  margin: 0;
}
.issue-card .summary {
  font-size: 14px;
  color: #333;
  line-height: 1.6;
  margin: 0;
}
.issue-card .versions {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--rule-soft);
}
.issue-card .versions a {
  flex: 1;
  text-align: center;
  padding: 8px 12px;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.issue-card .versions a:hover { background: var(--ink); color: var(--paper); border-bottom-color: var(--ink); }
.issue-card .gen-at {
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* === Mobile === */
@media (max-width: 820px) {
  .container { padding: 28px 20px 64px; }
  .masthead {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .masthead .title { font-size: 36px; }
  .masthead .issue-meta { text-align: left; }
  .trend-item { grid-template-columns: 56px 1fr; gap: 16px; }
  .trend-item .rank { font-size: 38px; }
  .trend-item .meta { grid-column: 2; text-align: left; margin-top: 4px; }
  .dive-grid { grid-template-columns: 1fr; }
  .data-block { grid-template-columns: 1fr; }
  .editor-block { grid-template-columns: 1fr; }
  .next-grid { grid-template-columns: 1fr; gap: 16px; }
  .section-head h2 { font-size: 24px; }
  .colophon { grid-template-columns: 1fr; gap: 16px; }
}