:root {
  --bg: #101827;
  --panel: #172235;
  --panel-soft: #1f2d44;
  --ink: #f4f7fb;
  --muted: #b8c4d8;
  --line: rgba(255, 255, 255, 0.12);
  --blue: #8cc8ff;
  --gold: #ffd166;
  --green: #78d99a;
  --pink: #ff93b5;
  --orange: #f4a261;
  --english: #8cc8ff;
  --mongolian: #ffffff;
  --mongolian-soft: #ffffff;
  --radius: 8px;
  --shadow: 0 14px 36px rgba(0, 0, 0, 0.24);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(180deg, rgba(16, 24, 39, 0.96), rgba(10, 14, 24, 0.98)),
    radial-gradient(circle at 12px 12px, rgba(140, 200, 255, 0.12) 2px, transparent 2.6px);
  background-size: auto, 30px 30px;
  color: var(--english);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 24px 20px 80px; }
.narrow { max-width: 820px; }

.top-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 4px;
  justify-content: center;
  margin-bottom: 10px;
  width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.top-nav::-webkit-scrollbar { display: none; }

.top-nav a,
.button-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--english);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 800;
  font-size: 14px;
}

.top-nav a {
  flex: 1 0 auto;
  min-width: fit-content;
  min-height: 28px;
  padding: 5px 7px;
  font-size: 11px;
  line-height: 1;
  white-space: nowrap;
}

.top-nav a:hover,
.button-row a:hover {
  background: rgba(255, 209, 102, 0.14);
  text-decoration: none;
}

.hero {
  min-height: 58vh;
  display: grid;
  align-content: center;
  padding: 34px 0 44px;
  border-bottom: 4px solid rgba(255, 209, 102, 0.45);
}

.compact-hero {
  min-height: 42vh;
}

.title-hero {
  min-height: calc(100vh - 58px);
  border-bottom: 4px solid rgba(255, 209, 102, 0.45);
}

.title-hero h1 {
  max-width: 760px;
}

.title-hero h1 .mn {
  font-size: 1em;
  line-height: 1.05;
  max-width: 760px;
}

.title-hero p {
  color: var(--gold);
  font-size: clamp(20px, 3vw, 28px);
}

.hero-kicker {
  color: var(--gold);
  font-weight: 900;
  letter-spacing: 0;
  font-size: 15px;
  margin-bottom: 10px;
}

h1 {
  color: var(--english);
  font-size: clamp(38px, 8vw, 76px);
  line-height: 1.02;
  letter-spacing: 0;
  max-width: 980px;
}

.hero p {
  max-width: 760px;
  margin-top: 18px;
  color: var(--english);
  font-size: clamp(18px, 2.8vw, 23px);
  font-weight: 700;
}

.section {
  padding: 40px 0 6px;
}

.slide {
  min-height: auto;
  padding: 34px 0 18px;
}

.section h2 {
  color: var(--english);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
  margin-bottom: 12px;
}

.section > p,
.lead {
  color: var(--english);
  font-size: 18px;
  max-width: 820px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.panel {
  background: linear-gradient(180deg, rgba(31, 45, 68, 0.96), rgba(23, 34, 53, 0.96));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.panel h3 {
  color: var(--english);
  font-size: 22px;
  line-height: 1.18;
  margin-bottom: 9px;
}

.panel p,
.panel li {
  color: var(--english);
  font-size: 16px;
}

.panel ul { margin-left: 18px; }

.badge {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: var(--radius);
  background: rgba(140, 200, 255, 0.13);
  color: var(--blue);
  font-weight: 900;
  font-size: 12px;
}

.story-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.story-step {
  border-top: 4px solid var(--gold);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  padding: 16px;
}

.story-step strong {
  display: block;
  color: var(--english);
  margin-bottom: 5px;
}

.story-step span { color: var(--english); font-size: 15px; }

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 18px 0 24px;
}

.prompt-box,
.result-box {
  border-radius: var(--radius);
  padding: 18px;
  border: 1px solid var(--line);
  min-height: 100%;
}

.prompt-box.bad {
  background: rgba(255, 147, 181, 0.11);
  border-color: rgba(255, 147, 181, 0.32);
}

.prompt-box.good {
  background: rgba(120, 217, 154, 0.11);
  border-color: rgba(120, 217, 154, 0.35);
}

.prompt-box h4,
.result-box h4 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-bottom: 8px;
}

.bad h4 { color: var(--pink); }
.good h4 { color: var(--green); }

.prompt-text {
  color: var(--english);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.45;
}

.model-quote {
  color: var(--english);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.55;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.model-quote:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.model-quote strong {
  color: var(--gold);
  font-size: 13px;
  text-transform: uppercase;
}

.heart-panel {
  border-left: 4px solid var(--gold);
}

.heart-panel h3 {
  color: var(--gold);
}

.heart-panel p {
  margin-top: 14px;
  font-size: 17px;
}

.result-box {
  background: rgba(255, 255, 255, 0.05);
  color: var(--english);
}

.result-box strong { color: var(--english); }

.workshop {
  border-left: 4px solid var(--blue);
  margin-top: 18px;
}

.workshop ol {
  margin-left: 22px;
  color: var(--english);
}

.workshop li { margin: 6px 0; }

.deck169 {
  width: min(100vw, 1440px);
  margin: 0 auto;
  padding: 18px 20px 80px;
}

.deck-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 8px 0 12px;
  background: rgba(16, 24, 39, 0.94);
}

.slide169 {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: auto;
  display: grid;
  align-content: center;
  gap: 18px;
  margin: 0 auto 28px;
  padding: 54px 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(31, 45, 68, 0.92), rgba(16, 24, 39, 0.98)),
    radial-gradient(circle at 12px 12px, rgba(140, 200, 255, 0.09) 2px, transparent 2.6px);
  background-size: auto, 30px 30px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.slide169.title-slide {
  background:
    linear-gradient(180deg, rgba(16, 24, 39, 0.96), rgba(10, 14, 24, 0.99)),
    radial-gradient(circle at 12px 12px, rgba(255, 209, 102, 0.12) 2px, transparent 2.6px);
  background-size: auto, 30px 30px;
  border-bottom: 6px solid rgba(255, 209, 102, 0.5);
}

.slide-kicker {
  color: var(--gold);
  font-size: clamp(20px, 1.7vw, 28px);
  font-weight: 900;
}

.slide169 h1 {
  max-width: 1180px;
  font-size: clamp(56px, 6.2vw, 92px);
}

.slide169 h2 {
  max-width: 1240px;
  color: var(--ink);
  font-size: clamp(44px, 4.6vw, 74px);
  line-height: 1.04;
}

.slide169 h3 {
  color: var(--ink);
  font-size: clamp(26px, 2.2vw, 38px);
  line-height: 1.15;
}

.slide169 p,
.slide169 li,
.slide169 .panel p,
.slide169 .question-card strong {
  color: var(--ink);
  font-size: clamp(24px, 2vw, 34px);
  line-height: 1.32;
}

.slide169 .en {
  color: var(--blue);
  font-size: 0.58em;
  font-weight: 600;
  line-height: 1.25;
  margin-top: 8px;
}

.slide169 p .en,
.slide169 li .en {
  font-size: 0.72em;
  font-weight: 500;
}

.slide169 .grid,
.slide169 .grid.two {
  margin-top: 8px;
}

.slide169 .panel {
  padding: 26px;
}

.slide169 .pill-row {
  gap: 14px;
}

.big-pills .pill {
  padding: 14px 18px;
  font-size: clamp(22px, 1.8vw, 30px);
}

.big-list {
  display: grid;
  gap: 14px;
  margin-left: 36px;
}

.puzzle-frame {
  margin: 22px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  padding: 14px;
  box-shadow: var(--shadow);
}

.puzzle-frame img {
  display: block;
  width: 100%;
  max-height: 620px;
  object-fit: contain;
  border-radius: var(--radius);
  background: #0b111d;
}

.presentation-note h3,
.story-panel h3,
.video-note h3 {
  color: var(--gold);
  font-size: 20px;
  margin-bottom: 8px;
}

.story-panel p {
  color: var(--english);
  margin-bottom: 14px;
  font-size: 18px;
}

.story-panel p:last-child { margin-bottom: 0; }

.reveal-box {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.055);
  overflow: hidden;
}

.reveal-box summary {
  cursor: pointer;
  padding: 18px 20px;
  color: var(--gold);
  font-size: 20px;
  font-weight: 900;
}

.reveal-content {
  border-top: 1px solid var(--line);
  padding: 20px;
}

.reveal-content p {
  color: var(--english);
  font-size: 17px;
  margin-bottom: 12px;
}

.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--line);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.prompt-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.prompt-card {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.prompt-card h3 {
  color: var(--gold);
  font-size: 18px;
  margin-bottom: 8px;
}

.prompt-card p {
  color: var(--english);
  font-weight: 800;
  line-height: 1.45;
}

.category-heading {
  margin-top: 34px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.copy-card {
  border-left: 4px solid var(--gold);
}

.small-note {
  color: var(--english);
  font-size: 14px;
  margin-top: 8px;
}

.mn {
  display: block;
  color: var(--mongolian-soft);
  font-size: 0.92em;
  font-weight: 900;
  line-height: 1.65;
  margin-top: 4px;
}

h1 .mn {
  color: var(--mongolian);
  font-size: 0.46em;
  line-height: 1.25;
  max-width: 820px;
}

.nav-mn {
  display: block;
  color: var(--mongolian);
  font-size: 9px;
  font-weight: 900;
  opacity: 0.78;
  line-height: 1.05;
  margin-top: 2px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-footer {
  text-align: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  margin-top: 50px;
  padding-top: 24px;
}

.page-footer p { margin-bottom: 12px; font-weight: 900; }

@media (max-width: 760px) {
  .grid,
  .grid.two,
  .story-strip,
  .compare,
  .prompt-list {
    grid-template-columns: 1fr;
  }

  .hero { min-height: auto; padding-top: 26px; }

  .title-hero {
    min-height: calc(100vh - 52px);
  }

  .wrap { padding-left: 10px; padding-right: 10px; }

  .top-nav {
    justify-content: center;
    gap: 3px;
  }

  .top-nav a {
    flex: 1 1 0;
    min-width: 0;
    padding: 5px 2px;
    font-size: 9px;
  }
}

/* Audience language emphasis: Mongolian is primary; English is support text. */
body,
h1,
.section h2,
.panel h3,
.top-nav a,
.button-row a,
.hero p,
.section > p,
.lead,
.panel p,
.panel li,
.story-step strong,
.story-step span,
.prompt-text,
.model-quote,
.model-quote strong,
.result-box,
.result-box strong,
.workshop ol,
.story-panel p,
.heart-panel p,
.heart-panel h3,
.reveal-content p,
.prompt-card p,
.small-note {
  color: #78b7f2 !important;
}

.mn,
h1 .mn,
h2 .mn,
h3 .mn,
h4 .mn,
p .mn,
li .mn,
strong .mn,
.prompt-text .mn,
.model-quote .mn,
.prompt-card .mn,
.panel .mn,
.result-box .mn {
  color: #ffffff !important;
  font-weight: 950 !important;
}

.nav-mn {
  color: #ffffff !important;
  font-weight: 950 !important;
  opacity: 1 !important;
}

.slide169 h1,
.slide169 h2,
.slide169 h3,
.slide169 p,
.slide169 li,
.slide169 .panel p,
.slide169 .question-card strong {
  color: #ffffff !important;
}

.slide169 .en {
  color: #8cc8ff !important;
}

@media (max-width: 760px) {
  .deck169 {
    padding: 14px 12px 50px;
  }

  .slide169 {
    aspect-ratio: auto;
    min-height: 78vh;
    padding: 28px 20px;
  }
}