/* ═══════════════════════════════════════════════════
   개발자 아무개 — 모노크롬 에디토리얼 스킨
   토큰 → 베이스 → 헤더 → 홈 → 리스트 → 글 → 댓글 → 푸터
   ═══════════════════════════════════════════════════ */

/* ── 토큰 ─────────────────────────────────────────── */
:root {
  --bg: #ffffff;
  --fg: #171717;
  --fg-strong: #0a0a0a;
  --muted: #666666;
  --faint: #999999;
  --border: #eaeaea;
  --surface: #fafafa;
  --header-bg: rgba(255, 255, 255, 0.8);

  --font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
    system-ui, "Apple SD Gothic Neo", "Segoe UI", "Malgun Gothic", "Noto Sans KR", sans-serif;
  --font-mono: "Geist Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular",
    Menlo, "D2Coding", monospace;

  --w-content: 680px;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #000000;
  --fg: #d4d4d4;
  --fg-strong: #ededed;
  --muted: #a1a1a1;
  --faint: #777777;
  --border: #262626;
  --surface: #111111;
  --header-bg: rgba(0, 0, 0, 0.6);
  color-scheme: dark;
}

/* ── 베이스 ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s ease, color 0.2s ease;
}
main { flex: 1; width: 100%; }
::selection { background: var(--fg-strong); color: var(--bg); }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; padding: 0; }
:focus-visible { outline: 2px solid var(--fg-strong); outline-offset: 3px; border-radius: 2px; }
.container { max-width: var(--w-content); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--fg-strong); color: var(--bg);
  padding: 10px 16px; font-size: 14px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ── 페이지 타입별 노출 제어 ──────────────────────── */
.hero { display: none; }
#tt-body-index .hero { display: block; }

.tabs { display: none; }
#tt-body-index .tabs,
#tt-body-category .tabs { display: flex; }

#tt-body-page .paging { display: none; } /* 글 상세에선 이전/다음 카드가 대신함 */

/* ── 헤더 ─────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.wordmark {
  font-size: 15px; font-weight: 650; letter-spacing: -0.01em;
  color: var(--fg-strong);
  display: inline-flex; align-items: center;
}
.cursor {
  display: inline-block; width: 2px; height: 1.05em;
  margin-left: 4px; background: var(--fg-strong);
  animation: blink 1.1s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }

.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a {
  font-size: 14px; color: var(--muted);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--fg-strong); }
.theme-toggle {
  width: 32px; height: 32px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 6px;
  color: var(--muted);
  transition: color 0.15s ease, background 0.15s ease;
}
.theme-toggle:hover { color: var(--fg-strong); background: var(--surface); }
.theme-toggle svg { width: 14px; height: 14px; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: none; }

/* ── 홈 히어로 ────────────────────────────────────── */
.hero { padding: 96px 0 72px; animation: rise 0.5s ease both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(30px, 5.4vw, 44px);
  font-weight: 700; letter-spacing: -0.035em; line-height: 1.3;
  color: var(--fg-strong);
}
.hero p { margin: 0; font-size: 16px; color: var(--muted); }

/* ── 분류 탭 ──────────────────────────────────────── */
.tabs { gap: 24px; border-bottom: 1px solid var(--border); }
.tab {
  padding: 0 2px 12px;
  font-size: 14px; font-weight: 500; color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.tab:hover { color: var(--fg-strong); }
.tab.active { color: var(--fg-strong); border-bottom-color: var(--fg-strong); }

/* ── 목록 헤더 (카테고리/태그/검색/방명록) ────────── */
.list-header { padding: 56px 0 20px; border-bottom: 1px solid var(--border); }
.list-title {
  margin: 0 0 6px;
  font-size: clamp(26px, 4.5vw, 34px);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.3;
  color: var(--fg-strong);
}
.list-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px; color: var(--faint);
}
.empty { padding: 72px 0; text-align: center; color: var(--faint); font-size: 15px; }

/* ── 글 리스트 행 ─────────────────────────────────── */
.row {
  display: block;
  padding: 28px 16px;
  margin: 0 -16px;
  border-bottom: 1px solid var(--border);
  border-radius: 8px;
  transition: background 0.15s ease;
}
.row:hover { background: var(--surface); }
.row:hover .row-title { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.row-meta {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 8px;
}
.label {
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--faint);
}
.date {
  font-family: var(--font-mono);
  font-size: 13px; color: var(--faint);
}
.row-title {
  display: block; margin: 0 0 6px;
  font-size: 19px; font-weight: 650; letter-spacing: -0.015em; line-height: 1.5;
  color: var(--fg-strong);
}
.row-excerpt {
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0; font-size: 15px; color: var(--muted); line-height: 1.7;
}

/* ── 글 상세 ──────────────────────────────────────── */
.back {
  display: inline-block; margin: 48px 0 0;
  font-size: 14px; color: var(--muted);
  transition: color 0.15s ease;
}
.back:hover { color: var(--fg-strong); }

.article { padding: 40px 0 0; }
.article-eyebrow { display: flex; gap: 12px; align-items: baseline; margin-bottom: 16px; }
.article-eyebrow .label { transition: color 0.15s ease; }
.article-eyebrow a.label:hover { color: var(--fg-strong); }
.article-eyebrow .sep { color: var(--border); font-size: 12px; }
.article-title {
  margin: 0 0 40px;
  font-size: clamp(28px, 4.6vw, 38px);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.35;
  color: var(--fg-strong);
}
.admin-controls {
  display: flex; gap: 14px;
  margin: -24px 0 32px;
  font-family: var(--font-mono); font-size: 12.5px;
}
.admin-controls a { color: var(--faint); }
.admin-controls a:hover { color: var(--fg-strong); }

/* ── 본문: 티스토리 에디터 출력 정규화 ────────────── */
.article-body { font-size: 17px; line-height: 1.8; word-break: keep-all; overflow-wrap: break-word; }
.article-body p { margin: 0 0 24px; }
.article-body h2, .article-body h3, .article-body h4 {
  color: var(--fg-strong); letter-spacing: -0.02em; line-height: 1.4;
}
.article-body h2 { margin: 56px 0 16px; font-size: 24px; font-weight: 700; }
.article-body h3 { margin: 44px 0 14px; font-size: 20px; font-weight: 700; }
.article-body h4 { margin: 36px 0 12px; font-size: 17.5px; font-weight: 650; }
.article-body strong, .article-body b { font-weight: 650; color: var(--fg-strong); }
.article-body a {
  text-decoration: underline; text-underline-offset: 3px;
  text-decoration-color: var(--faint);
  transition: text-decoration-color 0.15s ease;
}
.article-body a:hover { text-decoration-color: var(--fg-strong); }
.article-body ul, .article-body ol { margin: 0 0 24px; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body hr {
  border: 0 !important; border-top: 1px solid var(--border) !important;
  height: 0 !important; background: none !important;
  margin: 48px auto !important;
}

/* 인용구: 에디터 스타일 3종을 하나로 통일 */
.article-body blockquote {
  margin: 36px 0 !important;
  padding: 2px 0 2px 20px !important;
  border: 0 !important;
  border-left: 2px solid var(--fg-strong) !important;
  background: none !important;
  color: var(--muted) !important;
  font-size: 17px !important;
  quotes: none;
}
.article-body blockquote::before, .article-body blockquote::after { content: none !important; }
.article-body blockquote p { margin: 0 0 8px; color: inherit; }

/* 코드 */
.article-body code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
}
.article-body pre {
  margin: 0 0 24px !important;
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
  padding: 20px !important;
  overflow-x: auto;
}
.article-body pre code {
  display: block;
  background: none; border: none; padding: 0;
  color: var(--fg);
  font-size: 13.5px; line-height: 1.75;
}

/* 이미지 / 피규어 / 테이블 */
.article-body img {
  max-width: 100%; height: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.article-body figure { margin: 32px 0; }
.article-body figcaption {
  margin-top: 10px; text-align: center;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--faint);
}
.article-body table {
  width: 100%; margin: 0 0 24px;
  border-collapse: collapse; font-size: 15px;
}
.article-body th, .article-body td {
  border: 1px solid var(--border);
  padding: 10px 12px; text-align: left;
}
.article-body th { background: var(--surface); font-weight: 600; color: var(--fg-strong); }

/* ── 태그 ─────────────────────────────────────────── */
.tags { margin-top: 48px; font-size: 0; /* 치환자 콤마 구분자 숨김 */ }
.tags a {
  display: inline-block;
  margin: 0 8px 8px 0; padding: 5px 12px;
  font-family: var(--font-mono); font-size: 12.5px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.tags a::before { content: "#"; margin-right: 2px; color: var(--faint); }
.tags a:hover { color: var(--fg-strong); border-color: var(--faint); }

/* ── 이전 글 / 다음 글 ────────────────────────────── */
.pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  margin-top: 72px;
}
.pager-card {
  display: block;
  border: 1px solid var(--border); border-radius: 8px;
  padding: 16px 18px;
  transition: background 0.15s ease;
}
.pager-card:hover { background: var(--surface); }
.pager-card .label { display: block; margin-bottom: 6px; }
.pager-card .pager-title {
  display: block;
  font-size: 14.5px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.5;
  color: var(--fg-strong);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.pager-card.prev { grid-column: 1; }
.pager-card.next { grid-column: 2; text-align: right; }

/* ── 페이징 ───────────────────────────────────────── */
.paging {
  display: flex; align-items: center; justify-content: space-between;
  padding: 40px 0 8px;
  font-family: var(--font-mono); font-size: 13.5px;
}
.page-move { color: var(--muted); transition: color 0.15s ease; }
.page-move:hover { color: var(--fg-strong); }
.no-more-prev, .no-more-next { opacity: 0.3; pointer-events: none; }
.numbox { display: flex; gap: 6px; }
.paging .num {
  padding: 4px 9px; border-radius: 6px; color: var(--faint);
  transition: color 0.15s ease, background 0.15s ease;
}
.paging .num[href]:hover { color: var(--fg-strong); background: var(--surface); }
.paging .num:not([href]) { color: var(--fg-strong); font-weight: 600; }

/* ── 댓글 / 방명록: 티스토리 기본 앱(tt-*) 오버라이드 ─ */
.comments { margin-top: 80px; border-top: 1px solid var(--border); }
.guestbook { padding-bottom: 24px; }

.tt-comment-cont { font-family: var(--font-sans) !important; color: var(--fg) !important; }

/* 개수 헤더 */
.tt-box-total { padding: 24px 0 4px !important; border: 0 !important; }
.tt-box-total .tt_txt_g {
  font-family: var(--font-mono) !important;
  font-size: 11px !important; font-weight: 500 !important;
  letter-spacing: 0.1em !important; text-transform: uppercase !important;
  color: var(--faint) !important;
}
.tt-box-total .tt_num_g {
  font-family: var(--font-mono) !important;
  font-size: 12px !important; color: var(--fg-strong) !important;
}

/* 리스트 */
.tt-list-reply { margin: 0 !important; padding: 0 !important; }
.tt-item-reply {
  padding: 20px 0 !important;
  border: 0 !important;
  border-bottom: 1px solid var(--border) !important;
  background: none !important;
}
.tt-link-user { color: var(--fg-strong) !important; font-size: 14.5px !important; font-weight: 600 !important; }
.tt_desc { color: var(--fg) !important; font-size: 15px !important; line-height: 1.7 !important; }
.tt_date { font-family: var(--font-mono) !important; font-size: 12.5px !important; color: var(--faint) !important; }
.tt-link-comment .tt_txt_g, .tt-link-comment .tt_num_g { color: var(--muted) !important; font-size: 12.5px !important; }
.tt_cmt_info .tt_txt_g { color: var(--faint) !important; font-size: 12.5px !important; }

/* 프로필: 흑백 처리 — 취향이 아니면 아래 filter 줄 제거 */
.tt-thumbnail { filter: grayscale(1); border-radius: 50% !important; }

/* 더보기 메뉴 */
.tt-list-modify {
  background: var(--bg) !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
  box-shadow: none !important;
}
.tt-list-modify a { color: var(--fg) !important; font-size: 13px !important; }
.tt-list-modify a:hover { background: var(--surface) !important; }

/* 작성 폼 */
.tt-area-write { background: none !important; }
.tt-box-textarea {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
}
.tt-cmt { color: var(--fg) !important; font-size: 15px !important; }
.tt_txt_user { color: var(--fg-strong) !important; font-weight: 600 !important; font-size: 13.5px !important; }
.tt-box-account input {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  border-radius: 6px !important;
  color: var(--fg) !important;
  font-family: var(--font-sans) !important;
}
.tt-xe-label-text { color: var(--muted) !important; font-size: 13px !important; }
.tt-btn_register {
  background: var(--fg-strong) !important;
  color: var(--bg) !important;
  border: 0 !important; border-radius: 6px !important;
  font-weight: 600 !important;
  transition: opacity 0.15s ease;
}
.tt-btn_register:hover { opacity: 0.85; }
.tt-btn_register:disabled { opacity: 0.35 !important; }
.tt_inp_g {
  background: var(--surface) !important;
  border: 1px solid var(--border) !important;
  color: var(--fg) !important;
}

/* 다크 모드에서 스프라이트 아이콘 반전 — 어색하면 이 블록 제거 */
[data-theme="dark"] .tt_img_area_reply { filter: invert(1) grayscale(1); }
[data-theme="dark"] .tt-thumbnail { filter: grayscale(1); } /* 프로필 사진은 반전 제외 */

/* ── 푸터 ─────────────────────────────────────────── */
.site-footer { margin-top: 96px; border-top: 1px solid var(--border); }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px 24px;
  font-family: var(--font-mono);
  font-size: 12.5px; color: var(--faint);
}
.footer-links { display: flex; gap: 16px; }
.footer-inner a { transition: color 0.15s ease; }
.footer-inner a:hover { color: var(--fg-strong); }

/* ── 반응형 / 모션 ────────────────────────────────── */
@media (max-width: 540px) {
  body { font-size: 16px; }
  .hero { padding: 64px 0 48px; }
  .site-nav { gap: 16px; }
  .site-nav a { font-size: 13.5px; }
  .row { padding: 24px 12px; margin: 0 -12px; }
  .pager { grid-template-columns: 1fr; }
  .pager-card.prev, .pager-card.next { grid-column: auto; text-align: left; }
  .article-body { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}