/* VOCA DECK 콘텐츠 페이지 공용 스타일 (암기법 원리·CSV 가이드·학습 전략)
   voca 본체의 레트로 LED 패널 테마를 따른다. 페이지마다 <style>을 복붙하지 않는다. */
:root {
  --navy: #000040;
  --panel-gray: #d4d0c8;
  --panel-dark: #808080;
  --panel-light: #ffffff;
  --led-on: #22dd22;
  --led-off: #1a5c1a;
  --ink: #1a1a1a;
  --ink-dim: #4a4a4a;
  --ui-font: 'Apple SD Gothic Neo', 'Malgun Gothic', 'Dotum', sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--navy); color: var(--ink);
  font-family: var(--ui-font); line-height: 1.85;
}
.wrap { max-width: 800px; margin: 0 auto; padding: 28px 16px 72px; }

/* 본문을 레트로 패널 위에 얹는다 */
.panel {
  background: var(--panel-gray);
  border: 2px solid;
  border-color: var(--panel-light) var(--panel-dark) var(--panel-dark) var(--panel-light);
  padding: 28px 26px 36px;
}
@media (max-width: 560px) { .panel { padding: 20px 16px 28px; } .wrap { padding: 16px 10px 48px; } }

/* LED 타이틀바 */
.titlebar {
  background: var(--navy); color: var(--led-on);
  padding: 6px 12px; margin: -28px -26px 22px;
  font-size: 12px; letter-spacing: 1px; font-weight: 700;
  display: flex; justify-content: space-between; align-items: center;
}
@media (max-width: 560px) { .titlebar { margin: -20px -16px 18px; } }

.nav { margin-bottom: 22px; font-size: 13px; display: flex; flex-wrap: wrap; gap: 12px; }
a { color: #0000c0; }
.nav a { text-decoration: none; font-weight: 700; }

h1 { font-size: 24px; line-height: 1.35; margin: 0 0 6px; color: var(--ink); }
h2 { font-size: 17px; margin: 32px 0 8px; padding: 5px 10px; background: var(--navy); color: var(--led-on); }
h3 { font-size: 15px; margin: 22px 0 4px; color: var(--ink); }
p, li, td, th { color: var(--ink-dim); font-size: 14px; }
strong { color: var(--ink); }
ul, ol { padding-left: 20px; }
li { margin: 4px 0; }
.lead { color: var(--ink); font-size: 15px; }
.muted { color: #6a6a6a; font-size: 12px; }

.table-wrap { overflow-x: auto; margin: 14px 0; }
table { border-collapse: collapse; width: 100%; min-width: 440px; background: #fff; }
th, td { border: 1px solid var(--panel-dark); padding: 8px 10px; text-align: left; }
th { background: var(--navy); color: var(--led-on); font-size: 13px; }

code { font-family: Consolas, monospace; background: #fff; border: 1px solid var(--panel-dark); padding: 1px 5px; font-size: 13px; color: #000080; }
pre { background: #fff; border: 1px solid var(--panel-dark); padding: 14px; overflow-x: auto; }
pre code { border: 0; padding: 0; background: none; }

.note { background: #fff; border: 1px solid var(--panel-dark); border-left: 4px solid var(--navy); padding: 12px 14px; margin: 18px 0; }
.note.warn { border-left-color: #c04000; }
.note.warn strong { color: #c04000; }

.toc { background: #fff; border: 1px solid var(--panel-dark); padding: 12px 18px; margin: 20px 0 28px; }
.toc-title { font-size: 13px; font-weight: 700; margin-bottom: 4px; color: var(--ink); }
.toc ol { margin: 0; padding-left: 18px; }

.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin: 16px 0; }
.related a { display: block; background: #fff; border: 1px solid var(--panel-dark); padding: 12px 14px; text-decoration: none; }
.related a:hover { border-color: var(--navy); }
.related b { display: block; color: #000080; font-size: 13px; margin-bottom: 2px; }
.related span { color: var(--ink-dim); font-size: 12px; }

hr { border: 0; border-top: 1px solid var(--panel-dark); margin: 36px 0; }
footer { color: #6a6a6a; font-size: 12px; text-align: center; margin-top: 18px; }

/* ===== 사이트 헤더 (본체 index 의 site-nav 와 동일 룩) =====
   콘텐츠 페이지는 한국어 고정·JS 불필요 — 모바일에선 햄버거 대신 줄바꿈 */
.site-nav { display: flex; align-items: center; gap: 8px 16px; flex-wrap: wrap; padding: 9px 18px; background: var(--navy); border-bottom: 1px solid var(--led-on); }
.site-nav-brand { color: var(--led-on); font-weight: 800; font-size: 14px; letter-spacing: .5px; text-decoration: none; white-space: nowrap; }
.site-nav-links { display: flex; gap: 4px 16px; flex-wrap: wrap; align-items: center; }
.site-nav-links a { color: #b8c4d8; font-size: 12.5px; text-decoration: none; padding: 3px 0; border-bottom: 1px solid transparent; transition: .15s; white-space: nowrap; }
.site-nav-links a:hover { color: var(--led-on); border-bottom-color: var(--led-on); }
.site-nav-links a[aria-current="page"] { color: var(--led-on); border-bottom-color: var(--led-on); }
@media (max-width: 560px) { .site-nav { gap: 6px 12px; padding: 8px 12px; } .site-nav-links { gap: 2px 12px; } }