:root {
  --bg: #0b1020;
  --panel: #111827;
  --panel2: #151f33;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --line: #263244;
  --accent: #38bdf8;
  --green: #22c55e;
  --yellow: #facc15;
  --code: #020617;
  --radius: 18px;
}

body[data-theme="light"] {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --panel2: #f8fafc;
  --text: #111827;
  --muted: #6b7280;
  --line: #dbe3ef;
  --accent: #0284c7;
  --green: #16a34a;
  --yellow: #ca8a04;
  --code: #0f172a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.1), transparent 32%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Pretendard", "Noto Sans KR", sans-serif;
  line-height: 1.8;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
}

#page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 0.35s, visibility 0.35s;
}

#page-loader.hide {
  opacity: 0;
  visibility: hidden;
}

.loader-card {
  width: 280px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  text-align: center;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.loader-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--accent), var(--green));
  color: #020617;
  font-weight: 900;
  font-size: 24px;
}

.loader-bar {
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--panel2);
}

.loader-bar span {
  display: block;
  width: 40%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--green));
  animation: loading 1s infinite alternate;
}

.loader-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

@keyframes loading {
  from {
    transform: translateX(-20%);
  }
  to {
    transform: translateX(170%);
  }
}

#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9999;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--green));
}

.layout {
  max-width: 1480px;
  margin: 0 auto;
  padding: 36px 24px 96px;
  display: grid;
  grid-template-columns: 260px minmax(0, 900px) 220px;
  gap: 28px;
  align-items: start;
}

.sidebar,
.toc {
  position: sticky;
  top: 28px;
}

.brand,
.side-card,
.toc-inner,
.list-wrap,
.article,
.theme-toggle {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 16px;
  padding: 20px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--green));
  color: #020617;
  font-weight: 900;
}

.brand strong {
  display: block;
  font-size: 19px;
  letter-spacing: -0.04em;
}

.brand span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
}

.theme-toggle {
  width: 100%;
  margin-bottom: 16px;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  color: var(--text);
  cursor: pointer;
}

.theme-toggle strong {
  color: var(--accent);
}

.side-card {
  margin-bottom: 16px;
  padding: 20px;
}

.side-card h3 {
  margin: 0 0 14px;
  font-size: 15px;
}

.side-card.small {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}

.search-box {
  display: flex;
  gap: 8px;
}

.search-box input {
  min-width: 0;
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel2);
  color: var(--text);
  outline: none;
}

.search-box input:focus {
  border-color: var(--accent);
}

.search-box button {
  padding: 0 12px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #020617;
  font-weight: 800;
  cursor: pointer;
}

.side-list,
.side-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.side-list li,
.side-card li {
  padding: 9px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.side-list li:first-child,
.side-card li:first-child {
  border-top: 0;
}

.side-card a:hover,
.related-list a:hover {
  color: var(--accent);
}

.category-box ul {
  margin: 0;
  padding-left: 0;
}

.category-box li {
  list-style: none;
}

.tag-cloud a {
  display: inline-block;
  margin: 4px 5px 4px 0;
  padding: 6px 11px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  font-size: 13px;
}

.main {
  min-width: 0;
}

.list-wrap,
.article {
  overflow: hidden;
}

.list-header {
  padding: 36px 42px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(34, 197, 94, 0.05));
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.list-header h1 {
  margin: 0;
  font-size: 36px;
  letter-spacing: -0.06em;
}

.list-header p {
  margin: 8px 0 0;
  color: var(--muted);
}

.post-card {
  display: block;
  padding: 30px 42px;
  border-bottom: 1px solid var(--line);
  transition: 0.2s;
}

.post-card:last-child {
  border-bottom: 0;
}

.post-card:hover {
  background: rgba(56, 189, 248, 0.06);
  transform: translateY(-1px);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.post-meta .category,
.post-meta span:first-child {
  color: var(--green);
  font-weight: 700;
}

.post-card h2 {
  margin: 0 0 10px;
  font-size: 26px;
  line-height: 1.35;
  letter-spacing: -0.04em;
}

.post-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.article {
  padding: 48px 56px;
}

.article-header {
  margin-bottom: 34px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.04em;
}

.article-view {
  color: var(--text);
  font-size: 17px;
  word-break: keep-all;
}

.article-view h2 {
  margin: 54px 0 18px;
  padding-left: 15px;
  border-left: 4px solid var(--accent);
  font-size: 29px;
  line-height: 1.35;
  letter-spacing: -0.04em;
}

.article-view h3 {
  margin: 42px 0 16px;
  font-size: 23px;
  letter-spacing: -0.04em;
}

.article-view h4 {
  margin: 32px 0 12px;
  font-size: 19px;
}

.article-view p {
  margin: 18px 0;
}

.article-view a {
  color: var(--accent);
  border-bottom: 1px dashed rgba(56, 189, 248, 0.5);
}

.article-view ul,
.article-view ol {
  padding-left: 24px;
}

.article-view li {
  margin: 6px 0;
}

.article-view blockquote {
  margin: 30px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--green);
  border-radius: 12px;
  background: rgba(34, 197, 94, 0.1);
}

.article-view hr {
  margin: 42px 0;
  border: 0;
  border-top: 1px solid var(--line);
}

.article-view code {
  padding: 3px 7px;
  border-radius: 7px;
  background: var(--code);
  color: #7dd3fc;
  font-family: "JetBrains Mono", "Fira Code", Consolas, monospace;
  font-size: 0.92em;
}

.code-header {
  margin: 30px 0 0;
  padding: 9px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid #1e293b;
  border-bottom: 0;
  border-radius: 16px 16px 0 0;
  background: #0f172a;
  color: #94a3b8;
  font-size: 12px;
  font-family: "JetBrains Mono", Consolas, monospace;
}

.code-header button {
  border: 1px solid #334155;
  border-radius: 8px;
  background: #020617;
  color: #7dd3fc;
  font-size: 11px;
  cursor: pointer;
}

.article-view pre {
  overflow-x: auto;
  margin: 0 0 30px;
  padding: 24px;
  border: 1px solid #1e293b;
  border-radius: 0 0 16px 16px;
  background: var(--code);
}

.article-view pre code {
  padding: 0;
  background: transparent;
  color: #e5e7eb;
  font-size: 14px;
  line-height: 1.7;
}

.article-view th,
.article-view td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  white-space: nowrap;
}

.article-view th {
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent);
}

.article-section,
.share-box,
.subscribe-box,
.comment-guide,
.comments-area {
  margin-top: 46px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.article-section h3,
.share-box h3,
.comment-guide h3 {
  margin: 0 0 18px;
  font-size: 22px;
}

.subscribe-box {
  padding: 30px;
  display: grid;
  grid-template-columns: 58px 1fr auto;
  gap: 18px;
  align-items: center;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.12), rgba(34, 197, 94, 0.08));
}

.subscribe-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: var(--panel);
  font-size: 26px;
}

.subscribe-box h3 {
  margin: 0 0 4px;
  font-size: 22px;
}

.subscribe-box p,
.comment-guide p {
  margin: 0;
  color: var(--muted);
}

.subscribe-actions,
.share-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.subscribe-actions button,
.subscribe-actions a,
.share-actions button,
.share-actions a {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
}

.subscribe-actions button,
.share-actions button:first-child {
  background: var(--accent);
  color: #020617;
  border-color: var(--accent);
}

.related-list {
  margin: 0;
  padding-left: 20px;
}

.related-list li {
  margin: 8px 0;
  color: var(--muted);
}

.comment-guide {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel2);
}

.comments-area textarea,
.comments-area input {
  width: 100%;
  max-width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel2);
  color: var(--text);
}

.comments-area button,
.comments-area input[type="submit"] {
  padding: 10px 16px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #020617;
  font-weight: 900;
  cursor: pointer;
}

.toc-inner {
  padding: 20px;
}

.toc h3 {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--muted);
}

#toc-list,
#mobile-toc-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#toc-list a,
#mobile-toc-list a {
  display: block;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

#toc-list a:hover,
#mobile-toc-list a:hover {
  color: var(--accent);
}

.toc-h3 {
  padding-left: 12px;
  font-size: 12px !important;
}

.hidden {
  display: none !important;
}

.mobile-toc {
  display: none;
  margin-bottom: 28px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel2);
}

.mobile-toc button {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}

#mobile-toc-list {
  display: none;
  margin-top: 12px;
}

#mobile-toc-list.open {
  display: flex;
}

.paging {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin: 28px 0 0;
}

.paging a,
.paging span,
.page-btn,
.page-num {
  min-width: 42px;
  height: 42px;
  padding: 0 12px;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: var(--muted);
  font-size: 15px;
}

.paging a:hover,
.paging .selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #020617;
  font-weight: 800;
}

.bottom-action {
  position: fixed;
  left: 50%;
  bottom: 18px;
  z-index: 9997;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.bottom-action button,
.bottom-action a {
  padding: 9px 13px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-weight: 800;
  font-size: 13px;
  cursor: pointer;
}

.bottom-action button:hover,
.bottom-action a:hover {
  background: rgba(56, 189, 248, 0.14);
  color: var(--accent);
}

.footer {
  padding: 30px 20px 86px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.top-btn,
.mobile-menu-btn {
  position: fixed;
  z-index: 9998;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}

.top-btn {
  right: 24px;
  bottom: 84px;
  width: 44px;
  height: 44px;
  display: none;
}

.top-btn.show {
  display: block;
}

.mobile-menu-btn {
  display: none;
  left: 16px;
  bottom: 18px;
  width: 48px;
  height: 48px;
}

textarea,
input {
  font-family: inherit;
}

@media (max-width: 1280px) {
  .layout {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .toc {
    display: none;
  }

  .mobile-toc {
    display: block;
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 24px 16px 96px;
  }

  .sidebar {
    position: fixed;
    left: -300px;
    top: 0;
    bottom: 0;
    z-index: 9997;
    width: 280px;
    padding: 16px;
    overflow-y: auto;
    background: var(--bg);
    transition: 0.25s;
  }

  .sidebar.open {
    left: 0;
  }

  .mobile-menu-btn {
    display: block;
  }

  .article {
    padding: 32px 24px;
  }

  .post-card {
    padding: 26px 24px;
  }

  .list-header {
    padding: 30px 24px;
  }

  .subscribe-box {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .subscribe-icon {
    margin: 0 auto;
  }

  .subscribe-actions,
  .share-actions {
    justify-content: center;
  }
}

@media (max-width: 560px) {
  .article-header h1 {
    font-size: 30px;
  }

  .article-view {
    font-size: 16px;
  }

  .article-view h2 {
    font-size: 24px;
  }

  .paging {
    flex-wrap: wrap;
  }

  .brand {
    padding: 16px;
  }

  .bottom-action {
    width: calc(100% - 24px);
    justify-content: space-around;
  }

  .bottom-action button,
  .bottom-action a {
    padding: 8px 9px;
    font-size: 12px;
  }
}

.search-box button,
.subscribe-actions button,
.share-actions button:first-child,
#likeBtn,
#bottomLikeBtn,
#copyUrlBtn,
#bottomCopyBtn,
.comments-area button,
.comments-area input[type="submit"] {
  color: #ffffff !important;
}

/* 댓글 영역 */
.comments-area {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.comments-area h3,
.comments-area .comment-title {
  font-size: 24px;
  margin-bottom: 22px;
}

/* 티스토리 댓글 리스트 대응 */
.comments-area ol,
.comments-area ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.comments-area li {
  margin: 18px 0;
}

/* 댓글 카드 - 구름 느낌 */
.comments-area .comment,
.comments-area .tt-comment-cont,
.comments-area .rp_general,
.comments-area .rp_admin {
  position: relative;
  padding: 22px 24px;
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 28px 28px 28px 10px;
  background:
    radial-gradient(circle at 24px 24px, rgba(255,255,255,0.9), transparent 22px),
    linear-gradient(135deg, rgba(56, 189, 248, 0.12), rgba(255,255,255,0.04));
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
}

/* 답글은 살짝 들여쓰기 */
.comments-area li ul,
.comments-area .reply {
  margin-left: 32px;
  margin-top: 14px;
}

/* 댓글 작성자 */
.comments-area .name,
.comments-area .author,
.comments-area .tt_more_preview_comments_text,
.comments-area .rp_nick {
  font-weight: 800;
  color: var(--text);
}

/* 댓글 날짜 */
.comments-area .date,
.comments-area .time,
.comments-area .rp_date {
  margin-left: 8px;
  color: var(--muted);
  font-size: 13px;
}

/* 댓글 본문 */
.comments-area p,
.comments-area .desc,
.comments-area .rp_desc {
  margin: 12px 0 0;
  color: var(--text);
  line-height: 1.75;
}

/* 수정 / 삭제 / 답글 버튼 */
.comments-area a[href*="modify"],
.comments-area a[href*="delete"],
.comments-area a[href*="reply"],
.comments-area .modify,
.comments-area .delete,
.comments-area .reply {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  margin-top: 12px;
  margin-right: 6px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted) !important;
  font-size: 12px;
  font-weight: 700;
}

.comments-area a[href*="modify"]:hover,
.comments-area a[href*="delete"]:hover,
.comments-area a[href*="reply"]:hover,
.comments-area .modify:hover,
.comments-area .delete:hover,
.comments-area .reply:hover {
  border-color: var(--accent);
  color: var(--accent) !important;
}

/* 댓글 입력창 */
.comments-area textarea {
  min-height: 130px;
  resize: vertical;
  border-radius: 22px;
  background: var(--panel2);
}

/* 이름/비밀번호 입력칸 */
.comments-area input[type="text"],
.comments-area input[type="password"] {
  margin-bottom: 8px;
  border-radius: 999px;
}

/* 댓글 등록 버튼 */
.comments-area button,
.comments-area input[type="submit"] {
  margin-top: 10px;
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff !important;
  font-weight: 900;
}

/* 모바일 댓글 */
@media (max-width: 560px) {
  .comments-area .comment,
  .comments-area .tt-comment-cont,
  .comments-area .rp_general,
  .comments-area .rp_admin {
    padding: 18px;
    border-radius: 24px 24px 24px 8px;
  }

  .comments-area li ul,
  .comments-area .reply {
    margin-left: 14px;
  }
}

/* 티스토리 기본 '카테고리의 다른 글' 개선 */
.article-view table,
.another_category table {
  display: table !important;
  width: 100% !important;
  border-collapse: separate !important;
  border-spacing: 0 10px !important;
  margin: 18px 0 0 !important;
  border: 0 !important;
}

.another_category {
  margin: 56px 0 32px !important;
  padding: 28px !important;
  border: 1px solid var(--line) !important;
  border-radius: 22px !important;
  background: var(--panel) !important;
}

.another_category h4 {
  margin: 0 0 18px !important;
  padding-bottom: 14px !important;
  border-bottom: 1px solid var(--line) !important;
  color: var(--text) !important;
  font-size: 20px !important;
  font-weight: 900 !important;
}

.another_category h4 a {
  color: var(--accent) !important;
  border-bottom: 0 !important;
}

.another_category th,
.another_category td {
  border: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  white-space: normal !important;
}

.another_category tr {
  display: grid !important;
  grid-template-columns: 1fr auto !important;
  gap: 14px !important;
  align-items: center !important;
  padding: 14px 16px !important;
  border: 1px solid var(--line) !important;
  border-radius: 16px !important;
  background: var(--panel2) !important;
  transition: 0.18s ease !important;
}

.another_category tr:hover {
  transform: translateY(-1px);
  border-color: var(--accent) !important;
  background: rgba(56, 189, 248, 0.08) !important;
}

.another_category th a {
  color: var(--text) !important;
  font-weight: 800 !important;
  border-bottom: 0 !important;
}

.another_category th a:hover {
  color: var(--accent) !important;
}

.another_category th span {
  margin-left: 6px !important;
  color: var(--muted) !important;
  font-size: 13px !important;
}

.another_category td {
  color: var(--muted) !important;
  font-size: 13px !important;
  text-align: right !important;
}

/* 모바일 */
@media (max-width: 560px) {
  .another_category {
    padding: 20px !important;
  }

  .another_category tr {
    grid-template-columns: 1fr !important;
    gap: 4px !important;
  }

  .another_category td {
    text-align: left !important;
  }
}