/* 차계부 — 자동차 정비수첩. 버건디 표지 띠 + 기록 속지 + 빨간 확인 도장 */
:root {
  --cover: #6e1f2a;
  --cover-deep: #571720;
  --cover-ink: #f3e3df;
  --page: #fcfcfb;
  --ink: #2a1a1c;
  --ink-2: #57474a;
  --ink-3: #6f5f62;
  --rule: #e3d8d4;
  --rule-soft: #efe8e5;
  --stamp: #c2352e;
  --link: #8a2533;
  --font: "Gothic A1", system-ui, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --mono: "Nanum Gothic Coding", ui-monospace, monospace;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-color: #c9b5b1 transparent; }
body { margin: 0; background: var(--cover); color: var(--ink); font-family: var(--font); font-size: 16.5px; line-height: 1.75; word-break: keep-all; overflow-wrap: break-word; }
::selection { background: #f2d4cf; color: var(--cover-deep); }
a { color: var(--link); text-underline-offset: 3px; }
a:focus-visible { outline: 3px solid #e7a29a; outline-offset: 2px; border-radius: 3px; }

/* 표지 띠 */
.mast { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 22px max(18px, calc((100% - 760px) / 2)) 14px; color: var(--cover-ink); }
.logo { font-size: 28px; font-weight: 800; letter-spacing: .08em; color: var(--cover-ink); text-decoration: none; }
.issue { font-size: 13px; opacity: .88; }

/* 표지 아래쪽에 붙은 색인 탭 */
.tabs { padding: 0 max(10px, calc((100% - 780px) / 2)); }
.tabs ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0 8px; }
.tabs a { display: block; padding: 8px 16px 7px; border-radius: 8px 8px 0 0; background: #4a121a; box-shadow: inset 0 1px 0 rgba(243, 227, 223, .25); color: var(--cover-ink); font-size: 14.5px; font-weight: 600; text-decoration: none; }
.tabs a:hover { background: #5c1822; }
.tabs a[aria-current="page"] { background: var(--page); color: var(--cover); }

/* 속지 */
main {
  max-width: 780px; margin: 0 auto; padding: 22px 22px 40px; background: var(--page);
  min-height: 60vh; border-radius: 0 0 10px 10px;
}
@media (min-width: 800px) { main { padding: 34px 48px 56px; } }
h1 { font-size: clamp(25px, 6vw, 34px); line-height: 1.3; letter-spacing: -0.03em; font-weight: 800; margin: 6px 0 16px; text-wrap: balance; }
h2 { font-size: 21px; line-height: 1.4; letter-spacing: -0.02em; font-weight: 800; margin: 40px 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--cover); }
h3 { font-size: 17.5px; font-weight: 800; margin: 26px 0 6px; }
p { margin: 0 0 14px; }
.crumb { font-size: 13.5px; color: var(--ink-3); margin: 0 0 6px; }
.crumb a { color: var(--ink-3); text-decoration: none; }

/* 기록 칸 (요약) */
.order { position: relative; border: 1.5px solid var(--cover); border-radius: 6px; padding: 18px 18px 14px; margin: 0 0 26px; background: var(--page); }
.order h1 { margin-top: 0; }
.order-row { display: grid; grid-template-columns: 22px 1fr; gap: 8px; align-items: start; font-size: 16.5px; font-weight: 600; margin: 0 0 12px; line-height: 1.75; }
.order-row span { background: repeating-linear-gradient(to bottom, transparent 0 calc(1.75em - 2px), var(--rule) calc(1.75em - 2px) calc(1.75em - 1px), transparent calc(1.75em - 1px) 1.75em); }
.tick { width: 20px; height: 20px; color: var(--stamp); margin-top: 4px; }
.order-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; margin: 0; font-size: 13.5px; color: var(--ink-3); }
.date { font-family: var(--mono); font-size: 12.5px; color: var(--ink-3); }
.order-meta > span:not(.stamp)::before { content: ""; display: inline-block; width: 5px; height: 5px; background: var(--cover); border-radius: 50%; margin-right: 6px; vertical-align: 2px; }
.stamp { margin-left: auto; display: grid; place-items: center; width: 54px; height: 54px; border: 2.5px solid var(--stamp); border-radius: 50%;
  color: var(--stamp); font-family: var(--font); font-size: 13px; font-weight: 800; letter-spacing: .1em; transform: rotate(-12deg); opacity: .88;
  box-shadow: inset 0 0 0 3px var(--page), inset 0 0 0 4.5px var(--stamp); }
.latest a { color: var(--ink); font-size: 15px; font-weight: 600; flex: 1 1 60%; }

/* 본문 */
.prose { max-width: 68ch; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 16px; }
.prose li { margin: 4px 0; }
.prose li::marker { color: var(--cover); }
.prose strong { color: var(--cover-deep); }
.note { margin: 18px 0; padding: 12px 16px; background: #f6efed; border-radius: 6px; font-size: 15.5px; }
.note p { margin: 0; }
.tbl { overflow-x: auto; margin: 16px 0 20px; border: 1.5px solid var(--cover); border-radius: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; font-variant-numeric: tabular-nums; }
th { background: var(--cover); color: var(--cover-ink); font-weight: 600; text-align: left; padding: 10px 12px; font-size: 14px; }
td { padding: 10px 12px; border-top: 1px solid var(--rule); vertical-align: top; }
td:first-child { font-weight: 600; }

/* 출처·관련 */
.sources, .related { margin-top: 36px; max-width: 68ch; }
.sources ul { list-style: none; padding: 0; margin: 0; font-size: 14.5px; }
.sources li { padding: 8px 0; border-top: 1px dashed var(--rule); }
.related ul, .lines { list-style: none; padding: 0; margin: 0; }
.related a, .lines a { display: block; padding: 13px 4px; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.related a span, .lines a span { display: block; font-size: 16px; font-weight: 600; }
.related small, .lines small { font-size: 12.5px; color: var(--ink-3); }
.related a:hover span, .lines a:hover span { color: var(--link); }
.shelf h2 a { color: var(--ink); text-decoration: none; }

.foot { max-width: 780px; margin: 0 auto; padding: 22px 22px 40px; color: var(--cover-ink); font-size: 13.5px; opacity: .9; }
.foot a { color: var(--cover-ink); }
.foot p { margin: 0 0 6px; }

/* 모바일 표: 줄마다 기록 카드 */
@media (max-width: 599px) {
  .tbl { border: 0; }
  .tbl table, .tbl tbody, .tbl tr, .tbl td { display: block; }
  .tbl thead { display: none; }
  .tbl tr { border: 1.5px solid var(--cover); border-radius: 6px; padding: 8px 12px; margin-bottom: 8px; }
  .tbl td { border: 0; padding: 3px 0; }
  .tbl td::before { content: attr(data-label); display: block; font-size: 12px; font-weight: 600; color: var(--ink-3); }
  .stamp { width: 46px; height: 46px; font-size: 11.5px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }