/* ============================================
   Design Pattern Presentation
   Custom Styles for FHD (1920x1080) Optimization
   ============================================ */

/* ============================================
   Global Font & Layout Settings
   ============================================ */
:root {
  --r-main-font-size: 28px;
  --r-heading1-size: 2.2em;
  --r-heading2-size: 1.6em;
  --r-heading3-size: 1.2em;
  --accent-cyan: #42affa;
  --accent-orange: #d7d7d7;
  --accent-green: #8ec8ff;
  --card-bg: rgba(255, 255, 255, 0.08);
  --panel-border: rgba(255, 255, 255, 0.18);
  --panel-soft: rgba(255, 255, 255, 0.08);
  --panel-soft-strong: rgba(255, 255, 255, 0.12);
}

.reveal {
  font-size: var(--r-main-font-size);
  font-family: "Pretendard Variable", Pretendard, -apple-system,
    BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI",
    "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4 {
  font-family: "Pretendard Variable", Pretendard, -apple-system,
    BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI",
    "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  font-weight: 700;
}

.reveal h1 {
  font-size: var(--r-heading1-size);
  margin-bottom: 0.3em;
  text-shadow: none;
}

.reveal h2 {
  font-size: var(--r-heading2-size);
  margin-bottom: 0.3em;
}

.reveal p,
.reveal li {
  line-height: 1.4;
}

.reveal .slides section {
  padding: 20px 40px;
}

/* ============================================
   PAGE 1: Intro — Two Column Layout
   ============================================ */
.page-1 .intro-container {
  display: flex;
  gap: 60px;
  align-items: flex-start;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}

.page-1 .left-column { flex: 1; }
.page-1 .right-column { flex: 0 0 400px; }

.page-1.page-1-cover {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
}

.page-1 .intro-cover {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
  transform: translateX(-20px);
}

.page-1 .intro-cover .badge {
  margin-bottom: 28px;
  font-size: 0.8em;
  padding: 10px 20px;
}

.page-1 .intro-cover h1 {
  font-size: 2.75em;
  margin-bottom: 0.14em;
}

.page-1 .intro-cover .subtitle {
  font-size: 0.92em;
  margin-bottom: 0;
}

.page-1 .intro-single {
  max-width: 960px;
  margin: 0 auto;
  text-align: left;
}

.page-1 .intro-single.intro-single-narrow {
  max-width: 780px;
}

.page-1 .intro-single h2 {
  margin-bottom: 0.8em;
}

.page-1 .badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  padding: 8px 16px;
  font-size: 0.65em;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.page-1 h1 {
  font-size: 2em;
  color: #fff;
  margin-bottom: 0.2em;
  text-shadow: none;
  line-height: 1.1;
}

.page-1 h1 .highlight { color: var(--accent-cyan); font-weight: 700; }

.page-1 .subtitle {
  font-size: 0.7em;
  color: #b8b8b8;
  margin-bottom: 1.2em;
  line-height: 1.5;
}

.page-1 .concern-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1em 0;
}

.page-1 .concern-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  border-left: 3px solid var(--accent-orange);
  font-size: 0.78em;
  color: #d0d0d0;
  line-height: 1.45;
}

.page-1.page-1-concerns .concern-list li.fragment.concern-focus {
  opacity: 1;
  visibility: inherit;
  filter: blur(8px);
  transform: translateY(24px) scale(0.98);
  transition: filter 0.45s ease, transform 0.45s ease, opacity 0.45s ease,
    background-color 0.35s ease, border-left-color 0.35s ease,
    box-shadow 0.35s ease;
}

.page-1.page-1-concerns .concern-list li.fragment.concern-focus.visible {
  filter: none;
  transform: translateY(0) scale(1);
}

.page-1.page-1-concerns .concern-list li.fragment.concern-focus.visible:not(.current-fragment) {
  opacity: 0.45;
}

.page-1.page-1-concerns .concern-list li.fragment.concern-focus.current-fragment {
  opacity: 1;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
}

.page-1.page-1-concerns .concern-list li.fragment.concern-final.current-fragment {
  transform: translateY(0) scale(1.02);
  border-left-color: var(--accent-cyan);
  background: rgba(66, 175, 250, 0.08);
}

.page-1 .concern-num {
  color: var(--accent-orange);
  font-weight: 700;
  flex-shrink: 0;
  font-size: 1.18em;
}

.page-1 .toc-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 24px 20px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  border: 1px solid var(--panel-border);
  text-align: left;
}

.page-1 .toc-card h3 {
  font-size: 0.85em;
  color: var(--accent-cyan);
  margin: 0 0 14px 0;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.page-1.page-1-toc .toc-card h3 {
  font-size: 1.02em;
  margin-bottom: 18px;
}

.page-1 .toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-1 .toc-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.65em;
  color: #c7c7c7;
}

.page-1.page-1-toc .toc-list li {
  gap: 14px;
  padding: 11px 0;
  font-size: 0.78em;
}

.page-1 .toc-list li:first-child { border-top: none; }

.page-1 .toc-num {
  width: 22px;
  height: 22px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 0.85em;
  font-weight: 700;
  flex-shrink: 0;
}

.page-1.page-1-toc .toc-num {
  width: 26px;
  height: 26px;
  font-size: 0.95em;
}

/* ============================================
   PAGE 2, 7: 커버 슬라이드
   reveal.js data-background-* 속성으로 비율 유지한 배경 이미지를 중앙 배치.
   섹션 안에 콘텐츠 없음 → 패딩 0 처리
   ============================================ */
.page-cover {
  padding: 0 !important;
}

/* ============================================
   공통: 콘텐츠 슬라이드 제목
   ============================================ */
.slide-title {
  font-size: 1.3em;
  color: #fff;
  margin: 0 auto 0.5em;
  max-width: 1100px;
  text-align: left;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.slide-title .slide-tag {
  font-size: 0.48em;
  color: var(--accent-cyan);
  font-weight: 600;
  letter-spacing: 1px;
  white-space: nowrap;
}

/* ============================================
   공통: 패턴 카드
   ============================================ */
.pattern-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 20px 24px;
  border: 1px solid var(--panel-border);
  text-align: left;
}

.pattern-card h3 {
  font-size: 0.85em;
  color: var(--accent-cyan);
  margin: 0 0 12px 0;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pattern-card p {
  font-size: 0.65em;
  color: #c7c7c7;
  line-height: 1.6;
  margin: 0;
}

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

.pattern-card ul li {
  font-size: 0.65em;
  color: #c7c7c7;
  padding: 7px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  line-height: 1.45;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.pattern-card ul li:first-child { border-top: none; }

.pattern-card ul li .label {
  color: var(--accent-cyan);
  font-weight: 700;
  flex-shrink: 0;
  min-width: 80px;
}

.pattern-card ul li .pro {
  color: var(--accent-green);
  font-weight: 700;
  flex-shrink: 0;
  min-width: 72px;
}

.pattern-card ul li .con {
  color: var(--accent-orange);
  font-weight: 700;
  flex-shrink: 0;
  min-width: 72px;
}

/* ============================================
   PAGE 3, 11: 정의
   ============================================ */
.page-definition .def-layout {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  max-width: 1100px;
  margin: 0 auto;
}

.page-definition .def-layout.text-only {
  display: block;
  max-width: 960px;
}

.page-definition .def-text {
  flex: 1;
}

.page-definition .def-image {
  flex: 0 0 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-definition .def-image img {
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--panel-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.page-definition .keyword-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-definition .keyword-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 0.56em;
  color: var(--accent-cyan);
  font-weight: 600;
}

/* ============================================
   PAGE 4, 9: 구성요소 — 카드 그리드
   ============================================ */
.page-components .components-grid {
  display: grid;
  gap: 14px;
  max-width: 1100px;
  margin: 0 auto;
}

.page-components .components-grid.col-4 {
  grid-template-columns: repeat(4, 1fr);
}

.page-components .components-grid.col-3 {
  grid-template-columns: repeat(3, 1fr);
}

.page-components .comp-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 20px 18px;
  border: 1px solid var(--panel-border);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-components .comp-card .comp-name {
  font-size: 0.78em;
  color: var(--accent-cyan);
  font-weight: 700;
}

.page-components .comp-card .comp-alias {
  font-size: 0.55em;
  color: #9b9b9b;
  font-weight: 500;
}

.page-components .comp-card .comp-role {
  font-size: 0.62em;
  color: #c7c7c7;
  line-height: 1.5;
}

.page-components .comp-card .comp-example {
  font-size: 0.56em;
  color: #aaaaaa;
  font-style: italic;
}

.page-components .comp-card code {
  font-size: 0.95em;
  background: rgba(255, 255, 255, 0.08);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent-cyan);
}

/* ============================================
   PAGE 4, 7, 8, 12: 이미지 단독 슬라이드
   ============================================ */
.page-diagram {
  text-align: left;
}

.page-diagram .diagram-wrap {
  max-width: 1180px;
  margin: 0 auto 18px;
  background: rgba(10, 14, 26, 0.9);
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 500px;
}

.page-diagram .diagram-wrap img {
  max-width: 100%;
  max-height: 520px;
  object-fit: contain;
  border-radius: 6px;
}

.page-diagram .diagram-wrap.wide img {
  max-height: 460px;
}

.page-diagram .diagram-wrap.portrait img {
  max-height: 560px;
}

.page-command-stack .diagram-wrap.portrait img {
  max-height: 380px;
}

.page-diagram .diagram-caption {
  max-width: 1180px;
  margin: 0 auto;
  font-size: 0.62em;
  color: #c7c7c7;
}

/* ============================================
   PAGE 8: 코드 예제
   ============================================ */
.page-code {
  text-align: left;
}

.page-code .code-wrap {
  max-width: 1180px;
  margin: 0 auto 18px;
}

.page-code pre {
  margin: 0;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

.page-code code {
  max-height: 560px;
  font-size: 0.8em;
  line-height: 1.45;
}

.page-code .code-caption {
  max-width: 1180px;
  margin: 0 auto;
  font-size: 0.62em;
  color: #c7c7c7;
}

/* ============================================
   PAGE 6, 14: UML — 이미지
   ============================================ */
.page-uml {
  text-align: left;
}

.page-uml .uml-wrap {
  max-width: 1100px;
  margin: 0 auto;
  background: rgba(10, 14, 26, 0.9);
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.page-uml .uml-wrap img {
  max-width: 100%;
  max-height: 440px;
  object-fit: contain;
  border-radius: 6px;
}

/* ============================================
   PAGE 9, 15: 장단점 — 카드 + 요약
   ============================================ */
.page-pros-cons .pros-cons-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 1100px;
  margin: 0 auto 16px;
  align-items: start;
}

.page-pros-cons .use-section {
  max-width: 1100px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  border: 1px solid var(--panel-border);
  padding: 14px 22px;
}

.page-pros-cons .use-section h3 {
  font-size: 0.78em;
  color: #dfe7ef;
  margin: 0 0 10px 0;
  font-weight: 700;
}

.page-pros-cons .use-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-pros-cons .use-section ul li {
  font-size: 0.6em;
  color: #c7c7c7;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  padding: 5px 14px;
  line-height: 1.4;
}

/* ============================================
   PAGE 12: 선택 가이드 + Q&A
   ============================================ */
.page-guide {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  text-align: center;
}

.page-guide .qa-block {
  width: 100%;
  margin: 0;
  padding: 0;
}

.page-guide .qa-block h2 {
  width: 100%;
  text-align: center;
  transform: translateX(-20px);
  font-size: 2.2em;
  color: #fff;
  text-shadow: none;
  margin: 0;
}

.page-guide .qa-reference {
  margin: 28px 0 0;
  font-size: 0.72em;
  color: #b8b8b8;
}

.page-guide .qa-reference a {
  color: var(--accent-cyan);
  text-decoration: none;
  word-break: break-all;
}