@font-face {
  font-family: "Pretendard";
  src: url("./Pretendard-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Pretendard";
  src: url("./Pretendard-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

:root {
  --bg: #ffffff;
  --sidebar-bg: #fafafa;
  --border: #e5e5e5;
  --text: #1a1a1a;
  --text-muted: #6b6b6b;
  --accent: #4b3bdb;
  --accent-bg: #4b3bdb12;
  --max-content-width: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15151a;
    --sidebar-bg: #1b1b21;
    --border: #2d2d35;
    --text: #ececec;
    --text-muted: #9a9aa2;
    --accent: #9b8cff;
    --accent-bg: #9b8cff1f;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.layout {
  display: flex;
  min-height: 100vh;
}

/* 왼쪽 언어 목록 */
.sidebar {
  flex: 0 0 200px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 28px 20px;
}

.wordmark {
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.lang-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lang-link {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
}

.lang-link:hover {
  background: var(--accent-bg);
  color: var(--text);
}

.lang-link.active {
  background: var(--accent-bg);
  color: var(--accent);
  font-weight: 600;
}

/* 오른쪽 본문 영역 */
.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.doc-tabs {
  display: flex;
  gap: 4px;
  padding: 16px 32px 0;
  border-bottom: 1px solid var(--border);
}

.doc-tab {
  padding: 10px 16px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  border-bottom: 2px solid transparent;
}

.doc-tab:hover {
  color: var(--text);
}

.doc-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.content {
  max-width: var(--max-content-width);
  width: 100%;
  margin: 0 auto;
  padding: 40px 32px 80px;
}

.content h1 {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 8px;
}

.content h2 {
  font-size: 18px;
  font-weight: 600;
  margin: 36px 0 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.content h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 24px 0 8px;
}

.content p,
.content li {
  font-size: 14.5px;
  color: var(--text);
}

.content p {
  margin: 0 0 14px;
}

.content ul,
.content ol {
  margin: 0 0 14px;
  padding-left: 22px;
}

.content li {
  margin-bottom: 4px;
}

.content strong {
  font-weight: 600;
}

.content blockquote {
  margin: 0 0 14px;
  padding: 10px 16px;
  border-left: 3px solid var(--border);
  color: var(--text-muted);
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 13.5px;
}

.content th,
.content td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.content th {
  background: var(--sidebar-bg);
  font-weight: 600;
}

.content a {
  color: var(--accent);
}

.content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* 모바일: 언어 목록을 상단 가로 스크롤 바로 접는다 */
@media (max-width: 720px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    flex: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 16px 16px 12px;
  }

  .wordmark {
    margin-bottom: 12px;
  }

  .lang-list {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .lang-link {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .doc-tabs {
    padding: 12px 16px 0;
  }

  .content {
    padding: 24px 16px 60px;
  }
}