/* ===================================================================
   Claude Code 온보딩 가이드 - Custom Theme
   Claude Code Docs 스타일 기반 (clean dark header + warm accent)
   =================================================================== */

/* --- Design Tokens --- */
:root {
  --md-text-font: 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --md-code-font: 'JetBrains Mono', 'D2Coding', 'SFMono-Regular', Menlo, Consolas, monospace;

  /* 보조 색상 */
  --custom-border: rgba(0, 0, 0, 0.08);
  --custom-surface: #f8f9fa;
  --custom-surface-hover: #f1f3f5;
  --custom-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --custom-shadow-md: 0 2px 8px rgba(0, 0, 0, 0.06);
  --custom-radius: 8px;
  --custom-radius-lg: 12px;
}

/* Custom Primary Color - Clean dark header */
[data-md-color-scheme="default"] {
  --md-primary-fg-color: #1B1B1F;
  --md-primary-fg-color--light: #2D2D33;
  --md-primary-fg-color--dark: #111114;
  --md-primary-bg-color: #FFFFFF;
  --md-primary-bg-color--light: #FFFFFFB3;
  --md-accent-fg-color: #D97706;
  --md-accent-fg-color--transparent: #D9770610;
}

[data-md-color-scheme="slate"] {
  --custom-border: rgba(255, 255, 255, 0.08);
  --custom-surface: rgba(255, 255, 255, 0.04);
  --custom-surface-hover: rgba(255, 255, 255, 0.07);
  --custom-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --custom-shadow-md: 0 2px 8px rgba(0, 0, 0, 0.3);
  --md-accent-fg-color: #F59E0B;
  --md-accent-fg-color--transparent: #F59E0B10;
}

/* --- Typography --- */
.md-typeset {
  font-size: clamp(0.94rem, 0.92rem + 0.15vw, 1.01rem);
  line-height: 1.75;
  letter-spacing: -0.006em;
  color: var(--md-default-fg-color);
}

.md-typeset p,
.md-typeset li,
.md-typeset td,
.md-typeset th,
.md-typeset blockquote {
  line-height: 1.75;
}

.md-typeset p {
  margin-block: 0 1em;
}

.md-typeset ul,
.md-typeset ol {
  margin-block: 0.5em 1em;
}

.md-typeset li + li {
  margin-top: 0.3em;
}

/* --- Headings --- */
.md-typeset h1 {
  font-size: clamp(1.75rem, 1.55rem + 0.85vw, 2.2rem);
  line-height: 1.25;
  margin-bottom: 0.5em;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.md-typeset h2 {
  font-size: clamp(1.35rem, 1.2rem + 0.4vw, 1.6rem);
  line-height: 1.3;
  margin-top: 2em;
  margin-bottom: 0.6em;
  font-weight: 600;
  letter-spacing: -0.015em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--custom-border);
}

.md-typeset h3 {
  font-size: clamp(1.1rem, 1.02rem + 0.25vw, 1.25rem);
  line-height: 1.4;
  margin-top: 1.6em;
  margin-bottom: 0.4em;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.md-typeset h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 1.4em;
  margin-bottom: 0.3em;
}

/* --- Content Layout (넓은 컨텐츠 영역) --- */
.md-grid {
  max-width: 80rem;
}

.md-content__inner {
  max-width: 65rem;
  margin-inline: auto;
  padding-top: 0.5rem;
}

/* --- Inline Code --- */
.md-typeset code {
  font-size: 0.88em;
  padding: 0.15em 0.4em;
  border-radius: 4px;
  background-color: var(--custom-surface);
  border: 1px solid var(--custom-border);
  font-weight: 400;
}

/* --- Code Blocks --- */
.md-typeset pre {
  border-radius: var(--custom-radius);
  border: 1px solid var(--custom-border);
  box-shadow: var(--custom-shadow-sm);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.md-typeset pre > code {
  font-size: 0.85em;
  line-height: 1.65;
  border: none;
  background: none;
}

.highlight > pre > code,
.highlighttable .highlight > pre > code {
  background-color: transparent;
}

.md-clipboard {
  border-radius: 6px;
}

/* --- Tables --- */
.md-typeset__scrollwrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1em 0;
}

.md-typeset table:not([class]) {
  font-size: 0.92em;
  line-height: 1.6;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--custom-border);
  border-radius: var(--custom-radius);
  overflow: hidden;
  display: table;
  width: max-content;
  min-width: 100%;
}

.md-typeset table:not([class]) th {
  background-color: var(--custom-surface);
  color: var(--md-default-fg-color);
  font-weight: 600;
  font-size: 0.85em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75em 1em;
  border-bottom: 1px solid var(--custom-border);
}

.md-typeset table:not([class]) td {
  padding: 0.7em 1em;
  border-bottom: 1px solid var(--custom-border);
}

.md-typeset table:not([class]) tr:last-child td {
  border-bottom: none;
}

/* --- Blockquote (accent color 사용) --- */
.md-typeset blockquote {
  border-left: 3px solid var(--md-accent-fg-color);
  background-color: var(--custom-surface);
  padding: 1em 1.25em;
  margin: 1.25em 0;
  border-radius: 0 var(--custom-radius) var(--custom-radius) 0;
  font-style: normal;
}

.md-typeset blockquote p:last-child {
  margin-bottom: 0;
}

/* --- Admonitions (Callout Boxes) --- */
.md-typeset .admonition,
.md-typeset details {
  border: 1px solid var(--custom-border);
  border-left: 3px solid;
  border-radius: var(--custom-radius);
  box-shadow: var(--custom-shadow-sm);
  overflow: hidden;
  margin: 1.25em 0;
}

.md-typeset .admonition > .admonition-title,
.md-typeset details > summary {
  font-weight: 600;
  font-size: 0.9em;
  padding-top: 0.6em;
  padding-right: 1em;
  padding-bottom: 0.6em;
  border-bottom: 1px solid var(--custom-border);
}

.md-typeset .admonition > .admonition-body,
.md-typeset details > *:not(summary) {
  font-size: 0.95em;
}

/* --- Tabs --- */
.md-typeset .tabbed-set {
  border: 1px solid var(--custom-border);
  border-radius: var(--custom-radius);
  overflow: hidden;
  margin: 1.25em 0;
}

.md-typeset .tabbed-labels {
  border-bottom: 1px solid var(--custom-border);
}

.md-typeset .tabbed-labels > label {
  font-size: 0.88em;
  font-weight: 500;
  padding: 0.65em 1.2em;
  opacity: 0.7;
  transition: opacity 0.15s ease;
}

.md-typeset .tabbed-labels > label:hover {
  opacity: 1;
}

.md-typeset .tabbed-labels > .tabbed-labels__active {
  opacity: 1;
}

.md-typeset .tabbed-content {
  padding: 0.5em 0;
}

/* --- Checklist --- */
.md-typeset .task-list-item {
  padding-left: 0.2em;
}

.md-typeset .task-list-item input[type='checkbox'] {
  margin-right: 0.5em;
  accent-color: var(--md-accent-fg-color);
}

/* --- Card Grid (Landing Page) --- */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li {
  border: 1px solid var(--custom-border);
  border-radius: var(--custom-radius-lg);
  box-shadow: var(--custom-shadow-sm);
  padding: 1.2em 1.4em;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards > ol > li:hover {
  box-shadow: var(--custom-shadow-md);
  transform: translateY(-2px);
}

.md-typeset .grid.cards > ul > li > hr,
.md-typeset .grid.cards > ol > li > hr {
  margin: 0.6em 0;
  border-color: var(--custom-border);
}

/* --- Navigation --- */
.md-tabs {
  border-bottom: 1px solid var(--custom-border);
}

.md-tabs__link {
  font-size: 0.82rem;
  font-weight: 500;
  opacity: 0.65;
  transition: opacity 0.15s ease;
}

.md-tabs__link:hover {
  opacity: 1;
}

.md-tabs__link--active {
  opacity: 1;
  font-weight: 600;
}

/* 사이드바 */
.md-nav__link {
  font-size: 0.88rem;
  line-height: 1.5;
  border-radius: 6px;
  transition: background-color 0.15s ease;
}

.md-nav__item--active > .md-nav__link {
  font-weight: 600;
  color: var(--md-accent-fg-color);
}

.md-nav__item--nested > .md-nav__link {
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.55;
}

/* --- Header --- */
.md-header {
  box-shadow: var(--custom-shadow-sm);
}

.md-version {
  font-weight: 500;
  font-size: 0.82rem;
}

/* --- Footer --- */
.md-footer {
  border-top: 1px solid var(--custom-border);
}

.md-footer__link {
  font-size: 0.88rem;
}

.md-footer__title {
  font-size: 0.78rem;
  opacity: 0.6;
}

.md-footer__direction {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* --- HR Divider --- */
.md-typeset hr {
  border-color: var(--custom-border);
  margin: 2em 0;
}

/* --- Link styling (accent color 사용) --- */
.md-typeset a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.md-typeset a:hover {
  border-bottom-color: var(--md-accent-fg-color);
}

.md-nav a,
.md-tabs a,
.md-footer a,
.md-header a,
.md-typeset .grid.cards a,
.md-typeset .admonition a,
.md-typeset .headerlink {
  border-bottom: none;
}

/* --- Progress Bar --- */
.md-progress {
  background-color: var(--md-accent-fg-color);
}

/* --- Search --- */
.md-search__form {
  border-radius: var(--custom-radius);
}

/* --- 404 Page --- */
.md-typeset h1:only-child {
  text-align: center;
}

/* --- Landing Page Hero --- */
.hero-section {
  text-align: center;
  padding: 2.5em 1em 2em;
  margin-bottom: 1em;
}

.hero-section h1 {
  font-size: clamp(2rem, 1.8rem + 1.2vw, 2.8rem) !important;
  margin-bottom: 0.3em !important;
  border-bottom: none !important;
}

.hero-section .hero-subtitle {
  font-size: 1.12rem;
  opacity: 0.7;
  margin-bottom: 1.5em;
  font-weight: 400;
}

.hero-section .hero-quote {
  display: inline-block;
  background: var(--custom-surface);
  border: 1px solid var(--custom-border);
  border-radius: var(--custom-radius-lg);
  padding: 0.8em 1.5em;
  font-size: 1.05rem;
  font-weight: 500;
  max-width: min(600px, 90vw);
  margin: 0 auto 1em;
}

.hero-section .hero-meta {
  font-size: 0.85rem;
  opacity: 0.5;
  margin-top: 1em;
}

/* --- Section Title (Landing) --- */
.section-title {
  font-size: 0.78rem !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  opacity: 0.45;
  margin-bottom: 1em !important;
  margin-top: 2.5em !important;
  border-bottom: none !important;
  padding-bottom: 0 !important;
}

/* --- Responsive --- */

/* 모바일 (≤ 719px) */
@media screen and (max-width: 44.9375em) {
  .md-content__inner {
    max-width: 100%;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .md-typeset {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  .md-typeset h1 {
    font-size: clamp(1.55rem, 1.35rem + 1.4vw, 1.9rem);
  }

  .md-typeset h2 {
    font-size: clamp(1.2rem, 1.08rem + 0.8vw, 1.4rem);
    margin-top: 1.4em;
  }

  .md-typeset h3 {
    margin-top: 1.2em;
  }

  .md-typeset hr {
    margin: 1.25em 0;
  }

  .md-nav__link {
    font-size: 0.92rem;
  }

  /* 히어로 섹션 */
  .hero-section {
    padding: 1.5em 0.75em 1em;
  }

  .hero-section h1 {
    font-size: 1.8rem !important;
  }

  .hero-section .hero-subtitle {
    font-size: 1rem;
  }

  .hero-section .hero-quote {
    font-size: 0.95rem;
    padding: 0.7em 1em;
  }

  /* 카드 그리드 */
  .md-typeset .grid.cards > ul > li,
  .md-typeset .grid.cards > ol > li {
    padding: 1em 1em;
  }

  /* 테이블 모바일 최적화 */
  .md-typeset table:not([class]) {
    font-size: 0.82em;
  }

  .md-typeset table:not([class]) th {
    padding: 0.6em 0.7em;
    font-size: 0.8em;
  }

  .md-typeset table:not([class]) td {
    padding: 0.55em 0.7em;
  }

  /* 코드 블록 */
  .md-typeset pre > code {
    font-size: 0.8em;
  }

  /* Admonition */
  .md-typeset .admonition,
  .md-typeset details {
    margin: 1em 0;
  }

  /* 블록쿼트 */
  .md-typeset blockquote {
    padding: 0.75em 1em;
    margin: 1em 0;
  }

  /* 섹션 타이틀 */
  .section-title {
    margin-top: 1.8em !important;
  }

  /* 탭 */
  .md-typeset .tabbed-labels > label {
    font-size: 0.82em;
    padding: 0.55em 0.8em;
  }
}

/* 소형 모바일 (≤ 380px) */
@media screen and (max-width: 23.75em) {
  .md-content__inner {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .md-typeset {
    font-size: 0.9rem;
  }

  .hero-section h1 {
    font-size: 1.5rem !important;
  }

  .hero-section .hero-quote {
    font-size: 0.88rem;
    padding: 0.6em 0.8em;
  }

  .md-typeset .grid.cards > ul > li,
  .md-typeset .grid.cards > ol > li {
    padding: 0.8em 0.8em;
  }

  .md-typeset table:not([class]) {
    font-size: 0.78em;
  }
}

/* 태블릿 (720px ~ 1219px) */
@media screen and (min-width: 44.9375em) and (max-width: 76.25em) {
  .md-content__inner {
    max-width: 56rem;
  }
}

/* --- 동적 뷰포트 & Safe Area 지원 --- */

/* safe-area-inset: 노치폰(iPhone X+) 및 홈 인디케이터 대응 */
@supports (padding: env(safe-area-inset-top)) {
  .md-header {
    padding-top: env(safe-area-inset-top);
  }

  .md-footer {
    padding-bottom: env(safe-area-inset-bottom);
  }

  /* "맨위로" 버튼: 하단 safe area 확보 */
  [data-md-component="top"] {
    bottom: calc(0.5rem + env(safe-area-inset-bottom));
  }

  /* 모바일 사이드바/네비게이션 하단 여백 */
  @media screen and (max-width: 76.25em) {
    .md-sidebar {
      padding-bottom: env(safe-area-inset-bottom);
    }

    .md-content__inner {
      padding-left: max(0.75rem, env(safe-area-inset-left));
      padding-right: max(0.75rem, env(safe-area-inset-right));
    }
  }
}

/* dvh: 모바일 브라우저 주소창/툴바 변동 대응 (svh 폴백 포함) */
@supports (height: 100dvh) {
  @media screen and (max-width: 76.25em) {
    .md-sidebar {
      height: 100dvh;
    }

    .md-sidebar .md-sidebar__scrollwrap {
      height: calc(100dvh - 3rem);
    }

    .md-nav--primary {
      height: 100dvh;
    }
  }

  .md-search__overlay {
    height: 100dvh;
  }
}

/* touch 스크롤 최적화 */
.md-sidebar__scrollwrap,
.md-nav--primary,
.md-search__scrollwrap {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}