:root {
  --purple: #6758FF;
  --purple-light: #9a8fff;
  --purple-fade: rgba(103, 88, 255, 0.08);
  --purple-fade-md: rgba(103, 88, 255, 0.15);
  --bg: #f0efed;
  --bg-card: #ffffff;
  --text: #2c2c2c;
  --text-light: #6b6b6b;
  --text-muted: #9b9b9b;
  --border: #e0dfdd;
  --shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08);
}
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
}
body {
  font-family: "IBM Plex Sans", "Noto Sans KR", sans-serif;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ── Presentation Container ── */
.deck {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 100px;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition:
    opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.slide.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.slide.exit-up {
  opacity: 0;
  transform: translateY(-20px);
}

/* ── Section Tag ── */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--purple);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.section-tag::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--purple);
}

/* ── Typography ── */
.slide-title {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 32px;
}
.slide-title .accent {
  color: var(--purple);
}

.slide-subtitle {
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 300;
  color: var(--text-light);
  line-height: 1.6;
  max-width: 720px;
}

.slide-body {
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.8;
  color: var(--text);
  max-width: 800px;
}

/* ── Bullet Lists ── */
.bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 780px;
}
.bullet-list li {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.8;
  color: var(--text);
  padding-left: 20px;
  position: relative;
}
.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--purple);
}
.bullet-list li strong,
.bullet-list li b {
  font-weight: 700;
  color: var(--text);
}

/* ── Numbered Lists ── */
.numbered-list {
  list-style: none;
  counter-reset: item;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 780px;
}
.numbered-list li {
  counter-increment: item;
  display: flex;
  align-items: flex-start;
  gap: 18px;
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.6;
}
.numbered-list li::before {
  content: counter(item);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--purple);
  color: white;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* ── Cards Grid ── */
.cards-grid {
  display: grid;
  gap: 20px;
  margin-top: 12px;
}
.cards-grid.cols-2 {
  grid-template-columns: 1fr 1fr;
}
.cards-grid.cols-3 {
  grid-template-columns: 1fr 1fr 1fr;
}
.cards-grid.cols-4 {
  grid-template-columns: 1fr 1fr 1fr 1fr;
}

.card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 28px 24px;
  border: 1px solid var(--border);
  transition:
    transform 0.2s,
    box-shadow 0.2s;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--purple-fade);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
}
.card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-light);
}

/* ── Table ── */
.slide-table {
  width: 100%;
  max-width: 900px;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 8px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.slide-table th {
  background: var(--purple);
  color: white;
  font-weight: 600;
  font-size: 14px;
  padding: 14px 20px;
  text-align: left;
  letter-spacing: 0.3px;
}
.slide-table td {
  padding: 14px 20px;
  font-size: 15px;
  line-height: 1.5;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
}
.slide-table tr:last-child td {
  border-bottom: none;
}
.slide-table td:first-child {
  font-weight: 600;
  color: var(--purple);
}

/* ── Flow Pipeline ── */
.pipeline {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 32px 0;
  width: 100%;
  max-width: 960px;
}
.pipeline-step {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px 16px;
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.pipeline-step:first-child {
  border-radius: 14px 0 0 14px;
}
.pipeline-step:last-child {
  border-radius: 0 14px 14px 0;
}
.pipeline-step:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 10px solid var(--border);
  z-index: 2;
}
.pipeline-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--purple);
  color: white;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pipeline-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}
.pipeline-desc {
  font-size: 11px;
  color: var(--text-light);
  line-height: 1.4;
}

/* ── Cover Slide ── */
.slide-cover {
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 100px;
  background: var(--purple);
}
.slide-cover .cover-badge {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  color: white;
}
.slide-cover .cover-title {
  color: white;
}
.slide-cover .cover-title .accent {
  color: rgba(255, 255, 255, 0.8);
}
.slide-cover .cover-sub {
  color: rgba(255, 255, 255, 0.85);
}
.slide-cover .cover-meta {
  color: rgba(255, 255, 255, 0.7);
  justify-content: center;
}
.slide-cover .cover-dot {
  background: white;
}
.cover-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--purple-fade);
  border: 1px solid rgba(103, 88, 255, 0.2);
  border-radius: 100px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--purple);
  margin-bottom: 40px;
}
.cover-title {
  font-size: clamp(42px, 5.5vw, 72px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--text);
  margin-bottom: 20px;
}
.cover-title .accent {
  color: var(--purple);
}
.cover-sub {
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 500;
  color: var(--text-light);
  margin-bottom: 56px;
  line-height: 1.5;
}
.cover-meta {
  display: flex;
  gap: 32px;
  font-size: 15px;
  color: var(--text-muted);
}
.cover-meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.cover-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple);
}

/* ── TOC ── */
.toc-list {
  list-style: none;
  counter-reset: toc;
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 600px;
}
.toc-list li {
  counter-increment: toc;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
  color: var(--text);
  cursor: default;
  transition: color 0.2s;
}
.toc-list li:hover {
  color: var(--purple);
}
.toc-list li::before {
  content: "0" counter(toc);
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--purple);
  letter-spacing: 1px;
}

/* ── Chat Mockup ── */
.chat-mock {
  max-width: 520px;
  margin-top: 24px;
}
.chat-mock.scrollable {
  max-height: 70vh;
  overflow-y: auto;
  padding-right: 8px;
}
.chat-mock.scrollable::-webkit-scrollbar {
  width: 5px;
}
.chat-mock.scrollable::-webkit-scrollbar-track {
  background: transparent;
}
.chat-mock.scrollable::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
.chat-bubble {
  border-radius: 16px;
  padding: 14px 20px;
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 12px;
  max-width: 85%;
  animation: fadeUp 0.4s ease both;
}
.chat-bubble.user {
  background: var(--purple);
  color: white;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}
.chat-bubble.system {
  background: var(--purple-fade-md);
  color: var(--purple);
  border: 1px dashed rgba(103, 88, 255, 0.3);
  font-size: 13px;
  max-width: 100%;
  font-family: "IBM Plex Mono", monospace;
}
.chat-bubble.bot {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.chat-label.right {
  text-align: right;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Strategy Cards ── */
.strategy-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
  max-width: 900px;
}
.strategy-card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 24px;
  border: 1px solid var(--border);
}
.strategy-card .num {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--purple);
  color: white;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.strategy-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.strategy-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-light);
}

/* ── Validation Grid ── */
.validation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
  max-width: 800px;
}
.validation-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
}
.validation-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(76, 175, 80, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
}
.validation-item h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.validation-item p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.4;
}

/* ── Section Cover (Orange) ── */
.slide-section-cover {
  justify-content: center;
  align-items: flex-start;
  padding: 80px 100px;
  background: var(--purple);
}
.slide-section-cover .cover-badge {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  color: white;
}
.slide-section-cover .cover-title {
  color: white;
}
.slide-section-cover .cover-title .accent {
  color: rgba(255, 255, 255, 0.8);
}
.slide-section-cover .cover-sub {
  color: rgba(255, 255, 255, 0.85);
}

/* ── Progress Bar ── */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--purple);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 100;
}

/* ── Slide Counter ── */
.slide-counter {
  position: fixed;
  bottom: 32px;
  right: 40px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 4px;
}
.slide-counter .current {
  color: var(--purple);
  font-weight: 700;
}

/* ── Nav Arrows ── */
.nav-arrows {
  position: fixed;
  bottom: 28px;
  right: 40px;
  display: flex;
  gap: 8px;
  z-index: 100;
}
.nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  color: var(--text-light);
}
.nav-btn:hover {
  border-color: var(--purple);
  color: var(--purple);
  background: var(--purple-fade);
}
.nav-btn svg {
  width: 16px;
  height: 16px;
}

/* ── Two Column Layout ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  width: 100%;
}
.two-col > div:first-child {
  max-width: 500px;
}


/* ── Language Switcher ── */
.lang-switch {
  position: fixed;
  top: 20px;
  right: 40px;
  display: flex;
  gap: 8px;
  z-index: 100;
}
.lang-btn {
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
  text-decoration: none;
}
.lang-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text);
}
.lang-btn.active {
  background: white;
  color: var(--text);
  border-color: white;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ── Comparison Row ── */
.compare-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 20px;
  max-width: 860px;
}
.compare-col {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid var(--border);
}
.compare-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  color: var(--purple);
}

/* ── Responsive: Tablet ── */
@media (max-width: 900px) {
  .slide {
    padding: 40px 32px;
  }
  .two-col {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .cards-grid.cols-4 {
    grid-template-columns: 1fr 1fr;
  }
  .pipeline {
    flex-wrap: wrap;
  }
  .pipeline-step {
    min-width: 140px;
  }
  .compare-row {
    grid-template-columns: 1fr;
  }
  .strategy-cards {
    grid-template-columns: 1fr;
  }
  .validation-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Responsive: Mobile ── */
@media (max-width: 600px) {
  /* Base slide layout */
  .slide {
    padding: 56px 20px 72px;
    justify-content: flex-start;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Cover slides */
  .slide-cover,
  .slide-section-cover {
    padding: 48px 24px;
    justify-content: center;
  }
  .cover-title {
    font-size: clamp(28px, 8vw, 42px);
    letter-spacing: -0.5px;
    margin-bottom: 12px;
  }
  .cover-sub {
    font-size: clamp(14px, 4vw, 18px);
    margin-bottom: 32px;
  }
  .cover-badge {
    font-size: 12px;
    padding: 6px 14px;
    margin-bottom: 24px;
  }
  .cover-meta {
    flex-direction: column;
    gap: 12px;
    font-size: 13px;
  }
  .cover-meta img {
    height: 40px !important;
  }

  /* Section tag */
  .section-tag {
    font-size: 11px;
    margin-bottom: 16px;
  }

  /* Typography */
  .slide-title {
    font-size: clamp(22px, 6vw, 32px);
    margin-bottom: 16px;
  }
  .slide-body {
    font-size: clamp(14px, 3.5vw, 16px);
  }

  /* Bullet lists */
  .bullet-list {
    gap: 8px;
  }
  .bullet-list li {
    font-size: clamp(13px, 3.5vw, 16px);
    line-height: 1.6;
    padding-left: 16px;
  }
  .bullet-list li::before {
    width: 6px;
    height: 6px;
    top: 0.55em;
  }

  /* Two column → single column */
  .two-col {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .two-col > div:first-child {
    max-width: 100%;
  }

  /* Tables - fit to width */
  .slide-table {
    width: 100%;
    table-layout: fixed;
  }
  .slide-table th {
    font-size: 12px;
    padding: 10px 12px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .slide-table td {
    font-size: 13px;
    padding: 10px 12px;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
  .slide-table a {
    word-break: break-all;
    font-size: 11px;
  }

  /* Pipeline → vertical stack */
  .pipeline {
    flex-direction: column;
    gap: 0;
  }
  .pipeline-step {
    min-width: unset;
    border-radius: 0 !important;
    padding: 14px 16px;
    flex-direction: row;
    text-align: left;
    gap: 12px;
  }
  .pipeline-step:first-child {
    border-radius: 12px 12px 0 0 !important;
  }
  .pipeline-step:last-child {
    border-radius: 0 0 12px 12px !important;
  }
  .pipeline-step:not(:last-child)::after {
    display: none;
  }
  .pipeline-label {
    font-size: 13px;
  }
  .pipeline-desc {
    font-size: 11px;
  }

  /* Chat mockup */
  .chat-mock {
    max-width: 100%;
    margin-top: 16px;
  }
  .chat-mock.scrollable {
    max-height: 50vh;
  }
  .chat-bubble {
    font-size: 13px;
    padding: 10px 14px;
    margin-bottom: 8px;
    max-width: 92%;
  }
  .chat-label {
    font-size: 10px;
  }

  /* Cards grid */
  .cards-grid.cols-2,
  .cards-grid.cols-3,
  .cards-grid.cols-4 {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 20px 16px;
  }
  .card h3 {
    font-size: 15px;
  }
  .card p {
    font-size: 13px;
  }

  /* Strategy/Insight 3-col → stack */
  .slide > div[style*="display:flex"][style*="gap:20px"] {
    flex-direction: column !important;
    gap: 12px !important;
  }
  .slide > div[style*="display:flex"] > div[style*="flex:1"] {
    padding: 18px 16px !important;
    border-radius: 12px !important;
  }
  .slide > div[style*="display:flex"] > div[style*="flex:1"] h3 {
    font-size: 15px !important;
  }
  .slide > div[style*="display:flex"] > div[style*="flex:1"] p {
    font-size: 13px !important;
  }

  /* Validation grid */
  .validation-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .validation-item {
    padding: 14px 16px;
    gap: 10px;
  }
  .validation-item h4 {
    font-size: 13px;
  }
  .validation-item p {
    font-size: 12px;
  }

  /* Compare row */
  .compare-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .compare-col {
    padding: 16px;
    border-radius: 12px;
  }
  .compare-label {
    font-size: 12px;
  }

  /* Code viewer */
  .code-viewer {
    max-height: calc(100vh - 160px);
    border-radius: 8px;
  }
  .code-viewer-header {
    padding: 8px 12px;
  }
  .code-viewer-filename {
    font-size: 11px;
  }
  .code-viewer-body {
    font-size: 11px;
    padding: 8px 0;
  }
  .line-number {
    width: 36px;
    padding-right: 8px;
    font-size: 10px;
  }
  .line-content {
    font-size: 11px;
    padding-right: 8px;
  }

  /* Diff viewer */
  .diff-viewer {
    max-height: calc(100vh - 160px);
    border-radius: 8px;
  }
  .diff-header {
    flex-direction: column;
  }
  .diff-file-label {
    font-size: 11px;
    padding: 8px 12px;
  }
  .diff-file-label.left {
    border-right: none;
    border-bottom: 1px solid #404040;
  }
  .diff-body {
    flex-direction: column;
  }
  .diff-panel-left,
  .diff-panel-right {
    font-size: 10px;
    max-height: 35vh;
  }
  .diff-panel-left {
    border-right: none;
    border-bottom: 1px solid #404040;
  }
  .diff-line-num {
    width: 28px;
    font-size: 9px;
  }
  .diff-line-content {
    font-size: 10px;
    padding-left: 4px;
    padding-right: 4px;
  }

  /* Navigation */
  .nav-arrows {
    bottom: 16px;
    right: 16px;
    gap: 6px;
  }
  .nav-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
  }

  /* Language switcher */
  .lang-switch {
    top: 12px;
    right: 16px;
    gap: 4px;
  }
  .lang-btn {
    padding: 4px 10px;
    font-size: 11px;
    border-radius: 6px;
  }

  /* Progress bar */
  .progress-bar {
    height: 2px;
  }

  /* TOC */
  .toc-list li {
    font-size: clamp(15px, 4vw, 18px);
    padding: 16px 0;
    gap: 16px;
  }
  .toc-list li::before {
    font-size: 12px;
  }

  /* ASCII diagram */
  .ascii-diagram {
    font-size: 9px;
    padding: 10px;
    overflow-x: auto;
  }

  /* Inline style overrides for mobile */
  .slide [style*="font-size:18px"] {
    font-size: 15px !important;
  }
  .slide [style*="font-size:17px"] {
    font-size: 14px !important;
  }
  .slide [style*="font-size:15px"] {
    font-size: 13px !important;
  }
  .slide [style*="font-size:14px"] {
    font-size: 12px !important;
  }

  /* Strategy cards on slide 25 */
  .strategy-cards {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .strategy-card {
    padding: 16px;
  }
  .strategy-card h4 {
    font-size: 14px;
  }
  .strategy-card p {
    font-size: 12px;
  }
}

/* ── ASCII Diagram ── */
.ascii-diagram {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  line-height: 1.4;
  white-space: pre;
  background: var(--bg);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  color: var(--text);
}

/* ── Code Viewer ── */
.code-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #1e1e1e;
  border-radius: 12px;
  overflow: hidden;
  max-height: calc(100vh - 200px);
  border: 1px solid #333;
}
.code-viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: #2d2d2d;
  border-bottom: 1px solid #404040;
}
.code-viewer-filename {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: #9cdcfe;
  font-weight: 500;
}
.code-viewer-body {
  flex: 1;
  overflow: auto;
  padding: 16px 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  line-height: 1.6;
}
.code-viewer-body::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.code-viewer-body::-webkit-scrollbar-track {
  background: #1e1e1e;
}
.code-viewer-body::-webkit-scrollbar-thumb {
  background: #404040;
  border-radius: 4px;
}
.code-viewer-body::-webkit-scrollbar-thumb:hover {
  background: #505050;
}
.code-line {
  display: flex;
  min-height: 21px;
}
.code-line:hover {
  background: rgba(255, 255, 255, 0.04);
}
.line-number {
  flex-shrink: 0;
  width: 50px;
  padding-right: 16px;
  text-align: right;
  color: #606060;
  user-select: none;
}
.line-content {
  flex: 1;
  color: #d4d4d4;
  white-space: pre;
  padding-right: 16px;
}

/* Code syntax highlighting */
.xml-tag {
  color: #569cd6;
}
.json-key {
  color: #9cdcfe;
}
.bold-text {
  color: #ce9178;
  font-weight: 600;
}
.code-comment {
  color: #6a9955;
  font-style: italic;
}

/* ── Diff Viewer ── */
.diff-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #1e1e1e;
  border-radius: 12px;
  overflow: hidden;
  max-height: calc(100vh - 200px);
  border: 1px solid #333;
}
.diff-header {
  display: flex;
  background: #2d2d2d;
  border-bottom: 1px solid #404040;
}
.diff-file-label {
  flex: 1;
  padding: 12px 16px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  font-weight: 500;
  color: #9cdcfe;
}
.diff-file-label.left {
  border-right: 1px solid #404040;
}
.diff-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}
.diff-panel-left,
.diff-panel-right {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  line-height: 1.5;
}
.diff-panel-left {
  border-right: 1px solid #404040;
}
.diff-panel-left::-webkit-scrollbar,
.diff-panel-right::-webkit-scrollbar {
  width: 6px;
}
.diff-panel-left::-webkit-scrollbar-track,
.diff-panel-right::-webkit-scrollbar-track {
  background: #1e1e1e;
}
.diff-panel-left::-webkit-scrollbar-thumb,
.diff-panel-right::-webkit-scrollbar-thumb {
  background: #404040;
  border-radius: 3px;
}
.diff-line {
  display: flex;
  min-height: 20px;
  padding: 1px 0;
}
.diff-line-num {
  flex-shrink: 0;
  width: 36px;
  padding-right: 8px;
  text-align: right;
  color: #606060;
  user-select: none;
}
.diff-line-content {
  flex: 1;
  padding-right: 12px;
  padding-left: 8px;
  white-space: pre-wrap;
  word-break: break-word;
  color: #d4d4d4;
}

/* Diff line types */
.diff-line.unchanged {
  background: transparent;
}
.diff-line.modified {
  background: rgba(230, 180, 80, 0.15);
}
.diff-line.modified .diff-line-content {
  color: #e6b450;
}
.diff-line.added {
  background: rgba(80, 200, 120, 0.15);
}
.diff-line.added .diff-line-content {
  color: #50c878;
}
.diff-line.removed {
  background: rgba(220, 80, 80, 0.15);
}
.diff-line.removed .diff-line-content {
  color: #dc5050;
}
.diff-line.empty {
  background: rgba(100, 100, 100, 0.1);
}

/* Diff syntax highlighting */
.diff-line .xml-tag {
  color: #569cd6;
}
.diff-line .bold-text {
  color: #ce9178;
  font-weight: 600;
}