:root {
  --paper: #fff8ec;
  --ink: #101827;
  --muted: #617089;
  --navy: #0b1f3d;
  --blue: #1f64e0;
  --teal: #08947f;
  --amber: #e7a324;
  --red: #e6533d;
  --line: rgba(16, 24, 39, 0.15);
  --shadow: 0 30px 80px rgba(10, 22, 43, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-snap-type: y mandatory; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(231, 163, 36, 0.2), transparent 28%),
    radial-gradient(circle at 86% 12%, rgba(8, 148, 127, 0.16), transparent 30%),
    linear-gradient(135deg, #eaf0f8 0%, #f7efe2 48%, #e8f3ef 100%);
  color: var(--ink);
  font-family: Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.deck-nav {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: flex;
  width: min(1180px, calc(100vw - 36px));
  min-height: 52px;
  transform: translateX(-50%);
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 10px 8px 18px;
  border: 1px solid rgba(255,255,255,0.56);
  border-radius: 999px;
  background: rgba(255, 252, 246, 0.78);
  box-shadow: 0 14px 40px rgba(10, 22, 43, 0.12);
  backdrop-filter: blur(18px);
}

.deck-brand { color: var(--navy); font-size: 13px; font-weight: 950; letter-spacing: 0.12em; }
.deck-nav nav { display: flex; flex-wrap: wrap; gap: 4px; justify-content: flex-end; }
.deck-nav nav a {
  padding: 8px 11px;
  border-radius: 999px;
  color: #344054;
  font-size: 12px;
  font-weight: 900;
}
.deck-nav nav a:hover { background: var(--navy); color: white; }

.deck {
  display: grid;
  gap: 34px;
  width: min(1420px, calc(100vw - 36px));
  margin: 0 auto;
  padding: 96px 0 44px;
}

.slide {
  position: relative;
  display: grid;
  min-height: min(78.75vw, 798px);
  aspect-ratio: 16 / 9;
  overflow: hidden;
  padding: clamp(42px, 5vw, 76px);
  border: 1px solid rgba(255,255,255,0.76);
  border-radius: 22px;
  background:
    linear-gradient(90deg, rgba(11, 31, 61, 0.055) 1px, transparent 1px),
    linear-gradient(180deg, rgba(11, 31, 61, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 44px 44px, 44px 44px, auto;
  box-shadow: var(--shadow);
  scroll-snap-align: center;
}

.slide::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -160px;
  top: -170px;
  border-radius: 50%;
  background: rgba(31, 100, 224, 0.14);
}

.slide::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  left: -120px;
  bottom: -100px;
  border-radius: 50%;
  background: rgba(231, 163, 36, 0.18);
}

.slide > * { position: relative; z-index: 1; }
.slide-kicker, .overline {
  color: var(--blue);
  font-size: clamp(14px, 1.25vw, 18px);
  font-weight: 950;
  line-height: 1.25;
  letter-spacing: 0.1em;
}
.slide-kicker { align-self: start; }

h1, h2, h3, p { margin-top: 0; word-break: keep-all; }
h1 { margin: 8px 0 4px; color: white; font-size: clamp(86px, 13vw, 176px); line-height: 0.92; letter-spacing: -0.06em; }
h2 { margin-bottom: 18px; color: var(--navy); font-size: clamp(38px, 4.9vw, 74px); line-height: 1.04; letter-spacing: -0.045em; }
h3 { margin: 0 0 10px; color: var(--navy); font-size: clamp(19px, 2vw, 28px); line-height: 1.12; }
p { color: #38455a; font-size: clamp(17px, 1.55vw, 23px); font-weight: 720; line-height: 1.48; }

.slide-no {
  position: absolute;
  right: 34px;
  bottom: 24px;
  z-index: 2;
  color: rgba(16, 24, 39, 0.46);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.cover {
  align-content: space-between;
  background:
    radial-gradient(circle at 72% 18%, rgba(71, 213, 169, 0.26), transparent 24%),
    linear-gradient(135deg, #07152d 0%, #102a54 58%, #07463e 100%);
  color: white;
}
.cover::before { background: rgba(255, 255, 255, 0.09); }
.cover::after { background: rgba(71, 213, 169, 0.16); }
.cover .slide-kicker, .cover .overline { color: #9ed0ff; }
.cover-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 54px; align-items: end; }
.cover-name { margin-bottom: 34px; color: #9ed0ff; font-size: 20px; font-weight: 950; letter-spacing: 0.24em; }
.cover-lead { max-width: 900px; color: #eef7ff; font-size: clamp(27px, 3vw, 43px); font-weight: 850; line-height: 1.34; }
.contact-card { display: grid; gap: 10px; padding: 28px; border: 1px solid rgba(255,255,255,0.2); border-radius: 18px; background: rgba(255,255,255,0.1); backdrop-filter: blur(14px); }
.contact-card span { color: #9ed0ff; font-size: 13px; font-weight: 950; letter-spacing: 0.14em; text-transform: uppercase; }
.contact-card a { padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,0.16); color: white; font-weight: 850; }
.cover .slide-no { color: rgba(255,255,255,0.54); }

.title-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr); gap: 42px; align-items: end; }
.title-row.compact { align-items: start; }
.summary .title-row { grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.metric-grid article { min-height: 148px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: white; box-shadow: 0 16px 36px rgba(10, 22, 43, 0.08); }
.metric-grid b { display: block; margin-bottom: 12px; color: var(--red); font-size: clamp(32px, 4vw, 58px); line-height: 1; letter-spacing: -0.05em; }
.metric-grid span { color: #43516a; font-size: 16px; font-weight: 820; line-height: 1.42; }
.timeline { display: grid; gap: 10px; margin-top: 28px; }
.timeline article { display: grid; grid-template-columns: 190px 210px 1fr; gap: 18px; align-items: center; padding: 16px 18px; border-radius: 14px; background: rgba(255,255,255,0.72); border: 1px solid var(--line); }
.timeline time { color: var(--blue); font-weight: 950; }
.timeline strong { color: var(--navy); font-size: 22px; }
.timeline span { color: #4d5a70; font-weight: 760; }

.stack-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 24px; }
.stack-grid article { min-height: 170px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,0.82); }
.stack-grid img { width: 100%; height: 42px; margin-bottom: 18px; object-fit: contain; object-position: left center; }
.stack-grid p { margin-bottom: 0; font-size: 17px; }
.mini-icons { display: flex; gap: 10px; margin-bottom: 18px; }
.mini-icons img { width: 44px; height: 44px; margin: 0; object-position: center; }

.toc-list { display: grid; gap: 12px; margin: 24px 0 0; padding: 0; list-style: none; counter-reset: item; }
.toc-list li { counter-increment: item; display: grid; grid-template-columns: 72px 210px 1fr; gap: 18px; align-items: center; padding: 14px 20px; border-radius: 16px; background: white; border: 1px solid var(--line); }
.toc-list li::before { content: counter(item, decimal-leading-zero); color: var(--red); font-size: 31px; font-weight: 950; letter-spacing: -0.06em; }
.toc-list b { color: var(--navy); font-size: 22px; }
.toc-list span { color: #4d5a70; font-size: 17px; font-weight: 760; }

.app-slide, .tap-slide { grid-template-columns: minmax(0, 0.74fr) minmax(600px, 1.26fr); gap: 44px; align-items: center; }
.app-slide.reverse .project-copy { order: 2; }
.app-slide.reverse .phone-board { order: 1; }
.project-copy h2 { margin-bottom: 20px; }
.bullet-grid { display: grid; grid-template-columns: 1fr; max-width: 360px; gap: 8px; margin: 24px 0; padding: 0; list-style: none; }
.bullet-grid li { padding: 12px 14px; border: 1px solid rgba(31,100,224,0.18); border-radius: 12px; background: #eef5ff; color: #183d78; font-size: 15px; font-weight: 900; }
.link-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.link-row a, .card-gallery a { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 10px 14px; border: 1px solid rgba(11,31,61,0.16); border-radius: 999px; background: var(--navy); color: white; font-size: 13px; font-weight: 950; }
.link-row a:hover, .card-gallery a:hover, .final-link-panel a:hover { transform: translateY(-2px); }
.phone-board, .wide-board { margin: 0; padding: 12px; border: 1px solid var(--line); border-radius: 22px; background: #fdfdf9; box-shadow: 0 24px 56px rgba(10,22,43,0.15); }
.phone-board img { width: 100%; max-height: 650px; object-fit: contain; }
.phone-board.wide img { object-fit: cover; }

.syncflow-slide .project-copy {
  max-width: 740px;
}

.syncflow-slide {
  grid-template-columns: minmax(600px, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.syncflow-slide .project-copy p {
  max-width: 760px;
}

.syncflow-slide .phone-board img {
  max-height: 690px;
}

.rag-slide {
  padding-top: clamp(34px, 4vw, 56px);
  padding-bottom: 58px;
}

.rag-slide h2 {
  margin-bottom: 14px;
  font-size: clamp(48px, 4.8vw, 72px);
  line-height: 0.98;
}

.rag-slide .project-copy p {
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.42;
}

.rag-slide .flow-cards {
  gap: 8px;
  margin-top: 16px;
}

.rag-slide .link-row {
  margin-top: 14px;
}

.rag-slide .link-row a {
  min-height: 38px;
  padding: 8px 13px;
}

.rag-layout, .game-layout, .hardware-layout, .closing-grid { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(520px, 1.08fr); gap: 38px; align-items: center; }
.rag-screen-stage {
  position: relative;
  min-height: 540px;
}

.rag-screen-stage .rag-web {
  width: 88%;
  height: 390px;
  object-fit: cover;
  object-position: top center;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: white;
  box-shadow: 0 22px 48px rgba(10,22,43,0.14);
}

.rag-screen-stage .rag-phone {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(26%, 190px);
  max-height: 360px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #e8fbf1;
  box-shadow: 0 22px 48px rgba(10,22,43,0.18);
}

.rag-architecture {
  align-content: start;
}

.rag-architecture .slide-kicker {
  margin-bottom: 16px;
  font-size: clamp(16px, 1.35vw, 20px);
}

.rag-architecture h2 {
  margin-bottom: 12px;
  font-size: clamp(36px, 3.8vw, 58px);
}

.rag-architecture-grid {
  display: grid;
  grid-template-columns: minmax(480px, 1fr) minmax(360px, 0.72fr);
  gap: 30px;
  align-items: stretch;
  margin-top: -86px;
}

.rag-diagram {
  display: grid;
  margin: -54px 0 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: white;
  box-shadow: 0 22px 48px rgba(10,22,43,0.14);
  place-items: center;
  align-self: start;
}

.rag-diagram img {
  width: auto;
  max-width: 100%;
  height: 650px;
  max-height: 100%;
  object-fit: contain;
}

.architecture-points {
  display: grid;
  align-content: start;
  gap: 9px;
  padding-top: 132px;
}

.architecture-intro {
  margin: 0 0 6px;
  padding: 16px 18px;
  border-left: 5px solid var(--blue);
  border-radius: 16px;
  background: rgba(255,255,255,0.78);
  color: #38455a;
  font-size: clamp(16px, 1.28vw, 20px);
  font-weight: 820;
  line-height: 1.38;
}

.architecture-points article {
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.84);
}

.architecture-points b {
  display: block;
  margin-bottom: 5px;
  color: var(--navy);
  font-size: 21px;
}

.architecture-points span {
  color: #4d5a70;
  font-size: 16px;
  font-weight: 780;
  line-height: 1.38;
}
.rag-media { display: grid; gap: 14px; }
.rag-media img { border: 1px solid var(--line); border-radius: 16px; background: white; box-shadow: 0 18px 38px rgba(10,22,43,0.12); }
.rag-media .rag-main { max-height: 300px; width: 100%; padding: 8px; object-fit: contain; }
.rag-media div { display: grid; grid-template-columns: 1fr 0.38fr; gap: 14px; align-items: start; }
.rag-media div img:first-child { height: 160px; width: 100%; object-fit: cover; object-position: top center; }
.rag-media div img:last-child { max-height: 190px; object-fit: contain; justify-self: center; }
.flow-cards { display: grid; gap: 10px; margin-top: 20px; }
.flow-cards article { padding: 11px 14px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.82); }
.flow-cards b { display: block; margin-bottom: 3px; color: var(--navy); font-size: 16px; }
.flow-cards span { color: #556278; font-weight: 760; }
.two-col { grid-template-columns: repeat(2, 1fr); }

.game-slide { background: radial-gradient(circle at 74% 18%, rgba(255, 204, 77, 0.24), transparent 24%), linear-gradient(135deg, #fff8ec, #eef5ff); }
.game-phones { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-items: end; margin: 0; }
.game-phones img { width: 100%; max-height: 620px; object-fit: cover; object-position: top center; border: 1px solid rgba(255,193,7,0.34); border-radius: 28px; background: #070719; box-shadow: 0 24px 52px rgba(10,22,43,0.22); }
.tap-slide .wide-board img { max-height: 540px; width: 100%; object-fit: contain; }

.card-gallery { display: grid; gap: 18px; margin-top: 26px; }
.card-gallery.three { grid-template-columns: repeat(3, 1fr); }
.card-gallery.six { grid-template-columns: repeat(2, 1fr); gap: 12px 18px; }
.card-gallery article { display: grid; align-content: start; min-height: 280px; padding: 16px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,0.84); }
.card-gallery img { width: 100%; height: 170px; margin-bottom: 14px; object-fit: contain; border-radius: 12px; background: #f4f7fb; }
.card-gallery.three img { height: 260px; }
.card-gallery.six article { min-height: 250px; padding: 14px; }
.card-gallery.six img { height: 160px; margin-bottom: 10px; }
.card-gallery h3 { font-size: 21px; }
.card-gallery.six h3 { margin-bottom: 8px; font-size: 18px; }
.card-gallery p { font-size: 16px; margin-bottom: 14px; }
.card-gallery a { justify-self: start; min-height: 34px; padding: 8px 11px; font-size: 12px; }

.card-gallery.three.grovy-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.grovy-list article {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  min-height: 430px;
  padding: 16px;
  align-content: start;
}

.grovy-list img {
  grid-area: auto;
  width: 100%;
  height: 270px;
  margin: 0;
  object-fit: cover;
  object-position: center;
}

.grovy-list h3 {
  grid-area: auto;
  margin: 0;
  font-size: 24px;
}

.grovy-list p {
  grid-area: auto;
  margin: 0;
  font-size: 18px;
  line-height: 1.35;
}

.grovy-list a {
  grid-area: auto;
  margin-top: 8px;
}

.grovy-slide .title-row {
  display: block;
}

.grovy-slide h2 {
  margin-bottom: 14px;
}

.grovy-slide h2,
.chunjae-slide h2,
.legacy-project-slide h2 {
  font-size: clamp(40px, 4.8vw, 72px);
  line-height: 1.05;
}

.grovy-slide .title-row p {
  max-width: 980px;
  margin: 0;
}

.chunjae-slide {
  padding-top: clamp(34px, 4vw, 54px);
  padding-bottom: 54px;
}

.chunjae-slide .title-row {
  display: block;
  gap: 28px;
}

.chunjae-slide h2 {
  margin-bottom: 14px;
  white-space: nowrap;
}

.chunjae-slide .title-row p {
  max-width: 980px;
  margin: 0;
  font-size: clamp(16px, 1.25vw, 20px);
  line-height: 1.35;
}

.chunjae-slide .card-gallery.six {
  width: 92%;
  margin: 18px 0 0;
  gap: 12px 16px;
}

.chunjae-slide .card-gallery.six article {
  grid-template-columns: minmax(480px, 1fr) minmax(110px, 0.22fr);
  grid-template-areas:
    "image title"
    "image link";
  gap: 8px 16px;
  align-items: center;
  min-height: 150px;
  padding: 12px;
}

.chunjae-slide .card-gallery.six img {
  grid-area: image;
  width: 100%;
  height: 148px;
  margin-bottom: 0;
  object-fit: contain;
}

.chunjae-slide .card-gallery.six h3 {
  grid-area: title;
  align-self: end;
  margin-bottom: 0;
  font-size: 19px;
}

.chunjae-slide .card-gallery.six a {
  grid-area: link;
  align-self: start;
  justify-self: start;
  margin: 0;
  white-space: nowrap;
}

.game-slide .game-layout,
.tap-slide {
  grid-template-columns: minmax(0, 0.74fr) minmax(600px, 1.26fr);
}

.game-slide .bullet-grid,
.tap-slide .bullet-grid {
  grid-template-columns: 1fr;
  max-width: 360px;
}

.game-slide .game-phones img {
  max-height: 650px;
}

.tap-slide .wide-board {
  padding: 12px;
}

.tap-slide .wide-board img {
  max-height: 650px;
}

.legacy-media { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.legacy-media img { width: 100%; height: 210px; object-fit: contain; padding: 8px; border: 1px solid var(--line); border-radius: 16px; background: white; box-shadow: 0 16px 34px rgba(10,22,43,0.11); }
.legacy-media img:first-child { grid-column: 1 / -1; height: 250px; }

.hardware-link-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.hardware-link-gallery article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.86);
  box-shadow: 0 16px 34px rgba(10,22,43,0.11);
}

.hardware-link-gallery article:nth-child(3) {
  grid-column: 1 / -1;
  width: 58%;
  justify-self: center;
}

.hardware-link-gallery img {
  grid-column: 1 / -1;
  width: 100%;
  height: 210px;
  object-fit: cover;
  border-radius: 14px;
  background: #f4f7fb;
}

.hardware-link-gallery article:nth-child(3) img {
  height: 230px;
}

.hardware-link-gallery span {
  color: var(--navy);
  font-size: 18px;
  font-weight: 950;
}

.hardware-link-gallery a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 8px 13px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-size: 13px;
  font-weight: 950;
}

.legacy-project-slide .title-row {
  display: block;
}

.legacy-project-slide h2 {
  margin-bottom: 14px;
}

.legacy-project-slide .title-row p {
  max-width: 980px;
  margin: 0;
}

.legacy-project-grid {
  display: grid;
  width: 96%;
  gap: 14px;
  margin: 28px auto 0;
}

.legacy-project-grid article {
  display: grid;
  grid-template-columns: minmax(520px, 0.86fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  min-height: 162px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,0.86);
  box-shadow: 0 16px 34px rgba(10,22,43,0.09);
}

.legacy-project-grid img {
  width: 100%;
  height: 140px;
  object-fit: contain;
  border-radius: 14px;
  background: #f4f7fb;
}

.legacy-project-grid h3 {
  margin-bottom: 8px;
  font-size: 26px;
}

.legacy-project-grid p {
  margin: 0;
  font-size: 18px;
  line-height: 1.38;
}

.closing { align-content: center; background: linear-gradient(135deg, #07152d 0%, #102a54 62%, #07463e 100%); }
.closing h2 { color: white; font-size: clamp(64px, 9vw, 128px); }
.closing p { color: #dcecff; font-size: clamp(24px, 2.4vw, 36px); }
.closing .slide-kicker { color: #9ed0ff; }
.final-link-panel { display: grid; gap: 14px; }
.final-link-panel a { display: grid; gap: 6px; padding: 20px 22px; border: 1px solid rgba(255,255,255,0.18); border-radius: 18px; background: rgba(255,255,255,0.1); color: white; transition: transform .18s ease; }
.final-link-panel b { font-size: 22px; }
.final-link-panel span { color: #9ed0ff; font-weight: 780; }
.closing .slide-no { color: rgba(255,255,255,0.56); }

/* Typography normalization */
.slide-kicker,
.overline {
  color: var(--blue);
  font-size: clamp(14px, 1.15vw, 17px);
  line-height: 1.25;
  letter-spacing: 0.08em;
}

.project-copy .overline {
  color: var(--blue);
}

.slide .slide-kicker,
.slide .overline,
.slide p.overline,
.slide div.slide-kicker {
  color: var(--blue) !important;
  font-weight: 950;
}

.title-row p,
.project-copy p,
.architecture-intro,
.legacy-project-grid p {
  color: #38455a;
  font-size: clamp(18px, 1.45vw, 22px);
  font-weight: 780;
  line-height: 1.45;
}

.metric-grid span,
.timeline span,
.toc-list span,
.flow-cards span,
.architecture-points span,
.card-gallery p {
  font-size: 17px;
  line-height: 1.38;
}

.bullet-grid li,
.link-row a,
.card-gallery a,
.hardware-link-gallery a,
.final-link-panel span {
  font-size: 14px;
  line-height: 1.2;
}

.card-gallery h3,
.legacy-project-grid h3,
.architecture-points b,
.flow-cards b {
  font-size: 22px;
  line-height: 1.18;
}

.chunjae-slide .card-gallery.six h3,
.grovy-list h3 {
  font-size: 22px;
  line-height: 1.18;
}

.chunjae-slide .card-gallery.six a {
  font-size: 13px;
}

@media (max-width: 980px) {
  html { scroll-snap-type: none; }
  .deck { width: min(760px, calc(100vw - 24px)); padding-top: 86px; }
  .deck-nav { top: 10px; width: calc(100vw - 20px); border-radius: 18px; align-items: flex-start; }
  .deck-nav nav a { padding: 7px 8px; }
  .slide { aspect-ratio: auto; min-height: auto; padding: 34px 22px 64px; border-radius: 18px; }
  .cover-grid, .title-row, .app-slide, .tap-slide, .rag-layout, .game-layout, .hardware-layout, .closing-grid { grid-template-columns: 1fr; }
  .cover-grid { gap: 28px; }
  .contact-card { max-width: none; }
  .metric-grid, .stack-grid, .card-gallery.three, .card-gallery.six, .two-col { grid-template-columns: 1fr; }
  .timeline article, .toc-list li { grid-template-columns: 1fr; gap: 8px; }
  .app-slide.reverse .project-copy, .app-slide.reverse .phone-board { order: initial; }
  .phone-board img, .game-phones img { max-height: none; }
  .rag-media div, .game-phones, .legacy-media { grid-template-columns: 1fr; }
  .legacy-media img:first-child { grid-column: auto; }
}

@media print {
  @page {
    size: 16in 9in;
    margin: 0;
  }

  html,
  body {
    width: 16in;
    margin: 0;
    background: white;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  html {
    scroll-snap-type: none;
  }

  .deck-nav {
    display: none;
  }

  .deck {
    display: block;
    width: 16in;
    margin: 0;
    padding: 0;
  }

  .slide {
    width: 16in;
    height: 9in;
    min-height: 9in;
    margin: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    break-after: page;
    page-break-after: always;
  }

  .slide:last-child {
    break-after: auto;
    page-break-after: auto;
  }
}

/* Fixed screen rendering: keep slide layout independent from browser size. */
@media screen {
  .deck {
    width: 1600px;
    max-width: none;
  }

  .slide {
    width: 1600px;
    height: 900px;
    min-height: 900px;
    aspect-ratio: auto;
  }

  h1 {
    font-size: 148px;
  }

  h2 {
    font-size: 74px;
  }

  h3 {
    font-size: 26px;
  }

  p {
    font-size: 22px;
  }

  .slide-kicker,
  .overline,
  .slide .slide-kicker,
  .slide .overline,
  .slide p.overline,
  .slide div.slide-kicker {
    font-size: 17px;
  }

  .cover-lead {
    font-size: 38px;
  }

  .title-row p,
  .project-copy p,
  .architecture-intro,
  .legacy-project-grid p {
    font-size: 22px;
  }

  .metric-grid b {
    font-size: 52px;
  }

  .metric-grid span,
  .timeline span,
  .toc-list span,
  .flow-cards span,
  .architecture-points span,
  .card-gallery p {
    font-size: 17px;
  }

  .bullet-grid li,
  .link-row a,
  .card-gallery a,
  .hardware-link-gallery a,
  .final-link-panel span {
    font-size: 14px;
  }

  .card-gallery h3,
  .legacy-project-grid h3,
  .architecture-points b,
  .flow-cards b,
  .chunjae-slide .card-gallery.six h3,
  .grovy-list h3 {
    font-size: 22px;
  }

  .rag-slide h2,
  .rag-architecture h2,
  .grovy-slide h2,
  .chunjae-slide h2,
  .legacy-project-slide h2 {
    font-size: 68px;
  }

  .rag-architecture .slide-kicker {
    font-size: 20px;
  }
}

/* Final fixed-position overrides: no viewport-dependent spacing on screen. */
@media screen {
  body {
    min-width: 1600px;
  }

  .deck {
    width: 1600px !important;
    min-width: 1600px !important;
  }

  .slide {
    width: 1600px !important;
    height: 900px !important;
    min-width: 1600px !important;
    min-height: 900px !important;
    padding: 76px !important;
  }

  .cover,
  .summary,
  .stack,
  .toc,
  .app-slide,
  .rag-slide,
  .game-slide,
  .tap-slide,
  .company-slide,
  .hardware-slide,
  .legacy-project-slide,
  .closing {
    padding: 76px !important;
  }

  .chunjae-slide,
  .rag-architecture {
    padding-top: 54px !important;
    padding-bottom: 54px !important;
  }

  .slide-no {
    right: 34px !important;
    bottom: 24px !important;
  }
}

/* PDF must match the fixed 1600x900 screen layout exactly. */
@media print {
  @page {
    size: 1600px 900px;
    margin: 0;
  }

  html,
  body {
    width: 1600px !important;
    min-width: 1600px !important;
    height: auto !important;
    margin: 0 !important;
    background: white !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .deck-nav {
    display: none !important;
  }

  .deck {
    display: block !important;
    width: 1600px !important;
    min-width: 1600px !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .slide {
    width: 1600px !important;
    height: 900px !important;
    min-width: 1600px !important;
    min-height: 900px !important;
    max-width: none !important;
    max-height: none !important;
    margin: 0 !important;
    padding: 76px !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    break-after: page;
    page-break-after: always;
  }

  .cover,
  .summary,
  .stack,
  .toc,
  .app-slide,
  .rag-slide,
  .game-slide,
  .tap-slide,
  .company-slide,
  .hardware-slide,
  .legacy-project-slide,
  .closing {
    padding: 76px !important;
  }

  .chunjae-slide,
  .rag-architecture {
    padding-top: 54px !important;
    padding-bottom: 54px !important;
  }

  .slide:last-child {
    break-after: auto;
    page-break-after: auto;
  }
}

/* Last-mile PDF lock: mirror the fixed screen deck in print media. */
@media print {
  @page {
    size: 16.6667in 9.375in;
    margin: 0;
  }

  html,
  body,
  .deck,
  .slide {
    overflow: hidden !important;
  }

  h1 { font-size: 148px !important; }
  h2 { font-size: 74px !important; line-height: 1.04 !important; }
  h3 { font-size: 26px !important; }
  p { font-size: 22px !important; }

  .slide-kicker,
  .overline,
  .slide .slide-kicker,
  .slide .overline,
  .slide p.overline,
  .slide div.slide-kicker {
    color: var(--blue) !important;
    font-size: 17px !important;
    line-height: 1.25 !important;
    letter-spacing: 0.08em !important;
    font-weight: 950 !important;
  }

  .cover-lead { font-size: 38px !important; }
  .title-row p,
  .project-copy p,
  .architecture-intro,
  .legacy-project-grid p { font-size: 22px !important; line-height: 1.45 !important; }
  .metric-grid b { font-size: 52px !important; }
  .metric-grid span,
  .timeline span,
  .toc-list span,
  .flow-cards span,
  .architecture-points span,
  .card-gallery p { font-size: 17px !important; line-height: 1.38 !important; }
  .bullet-grid li,
  .link-row a,
  .card-gallery a,
  .hardware-link-gallery a,
  .final-link-panel span { font-size: 14px !important; line-height: 1.2 !important; }
  .card-gallery h3,
  .legacy-project-grid h3,
  .architecture-points b,
  .flow-cards b,
  .chunjae-slide .card-gallery.six h3,
  .grovy-list h3 { font-size: 22px !important; line-height: 1.18 !important; }
  .rag-slide h2,
  .rag-architecture h2,
  .grovy-slide h2,
  .chunjae-slide h2,
  .legacy-project-slide h2 { font-size: 68px !important; }
  .rag-architecture .slide-kicker { font-size: 20px !important; }
}

/* Display the fixed 1600x900 deck at 80% scale on screen. */
@media screen {
  .deck {
    transform: scale(0.8);
    transform-origin: top center;
    margin-bottom: -20%;
  }
}

/* Force 80% visual scale for the web deck. */
@media screen {
  .deck {
    transform: scale(0.8) !important;
    transform-origin: top center !important;
    width: 1600px !important;
    min-width: 1600px !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  body {
    min-width: 1280px !important;
  }
}

/* Make the outer deck box match the 80% visual scale. */
@media screen {
  body {
    min-width: 0 !important;
  }

  .deck {
    width: 1280px !important;
    min-width: 0 !important;
    max-width: calc(100vw - 36px) !important;
    transform: none !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-top: 96px !important;
  }

  .slide {
    width: 1280px !important;
    height: 720px !important;
    min-width: 1280px !important;
    min-height: 720px !important;
    padding: 60px !important;
  }

  .cover,
  .summary,
  .stack,
  .toc,
  .app-slide,
  .rag-slide,
  .game-slide,
  .tap-slide,
  .company-slide,
  .hardware-slide,
  .legacy-project-slide,
  .closing {
    padding: 60px !important;
  }

  .chunjae-slide,
  .rag-architecture {
    padding-top: 43px !important;
    padding-bottom: 43px !important;
  }
}

/* Slide 14: keep the six Chunjae cards inside the fixed 16:9 canvas. */
.chunjae-slide {
  align-content: start !important;
}

.chunjae-slide .card-gallery.six {
  width: 100% !important;
  max-width: 100% !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 8px 14px !important;
  margin-top: 14px !important;
  padding-right: 0 !important;
}

.chunjae-slide .card-gallery.six article {
  grid-template-columns: minmax(0, 1fr) 94px !important;
  grid-template-areas:
    "image title"
    "image link" !important;
  gap: 4px 12px !important;
  min-width: 0 !important;
  min-height: 106px !important;
  padding: 9px 12px !important;
  overflow: hidden !important;
}

.chunjae-slide .card-gallery.six img {
  height: 96px !important;
  min-width: 0 !important;
}

.chunjae-slide .card-gallery.six h3 {
  font-size: 18px !important;
  line-height: 1.12 !important;
}

.chunjae-slide .card-gallery.six a {
  min-height: 30px !important;
  padding: 6px 9px !important;
  font-size: 12px !important;
}

/* Final slide-fit pass: keep all fixed 1280x720 slides clear of page numbers. */
.summary {
  align-content: start !important;
}

.summary .timeline {
  margin-top: 22px !important;
}

.summary .timeline article {
  padding-top: 13px !important;
  padding-bottom: 13px !important;
}

#slide-05,
#slide-07,
.game-slide,
.hardware-slide,
.legacy-project-slide {
  align-content: start !important;
}

#slide-05 .phone-board,
#slide-07 .phone-board {
  align-self: start !important;
}

#slide-05 .phone-board img,
#slide-07 .phone-board img {
  max-height: 560px !important;
}

#slide-06 {
  grid-template-columns: minmax(600px, 1.26fr) minmax(0, 0.74fr) !important;
}

#slide-06 .phone-board {
  align-self: start !important;
}

#slide-06 .phone-board img {
  max-height: 560px !important;
}

.rag-architecture {
  align-content: start !important;
}

.rag-architecture .slide-kicker {
  margin-bottom: 10px !important;
}

.rag-architecture h2 {
  max-width: 510px !important;
  margin-bottom: 8px !important;
  font-size: 56px !important;
  line-height: 1.02 !important;
}

.rag-architecture-grid {
  grid-template-columns: minmax(0, 510px) minmax(0, 1fr) !important;
  gap: 40px !important;
  margin-top: -72px !important;
  align-items: start !important;
}

.architecture-points {
  gap: 7px !important;
  padding-top: 104px !important;
}

.architecture-intro {
  padding: 13px 16px !important;
  font-size: 17px !important;
  line-height: 1.32 !important;
}

.architecture-points article {
  padding: 11px 15px !important;
}

.architecture-points b {
  margin-bottom: 3px !important;
  font-size: 19px !important;
}

.architecture-points span {
  font-size: 15px !important;
  line-height: 1.3 !important;
}

.rag-diagram {
  width: min(660px, 100%) !important;
  justify-self: end !important;
  margin-top: -84px !important;
}

.rag-diagram img {
  height: 600px !important;
}

.game-slide .game-layout {
  align-items: start !important;
}

.game-slide .game-phones img {
  max-height: 570px !important;
}

#slide-12 {
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr) !important;
  gap: 30px !important;
  align-items: start !important;
}

#slide-12 .project-copy {
  max-width: 320px !important;
}

#slide-12 .project-copy h2 {
  font-size: 68px !important;
  line-height: 1.02 !important;
}

#slide-12 .project-copy p {
  font-size: 19px !important;
  line-height: 1.38 !important;
}

#slide-12 .bullet-grid {
  margin: 18px 0 !important;
}

#slide-12 .wide-board {
  align-self: start !important;
  width: 100% !important;
  margin-top: 40px !important;
  overflow: hidden !important;
}

#slide-12 .wide-board img {
  width: 100% !important;
  height: auto !important;
  max-height: 520px !important;
  object-fit: contain !important;
  object-position: center center !important;
}

.hardware-slide .hardware-layout {
  align-items: start !important;
}

.hardware-link-gallery {
  gap: 12px !important;
}

.hardware-link-gallery article {
  gap: 8px !important;
  padding: 10px !important;
}

.hardware-link-gallery img {
  height: 180px !important;
}

.hardware-link-gallery article:nth-child(3) img {
  height: 190px !important;
}

.hardware-link-gallery span {
  font-size: 16px !important;
}

.hardware-link-gallery a {
  min-height: 32px !important;
  padding: 6px 11px !important;
}

.legacy-project-grid {
  width: 100% !important;
  gap: 10px !important;
  margin-top: 18px !important;
}

.legacy-project-grid article {
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr) !important;
  gap: 18px !important;
  min-height: 130px !important;
  padding: 10px 12px !important;
}

.legacy-project-grid img {
  height: 112px !important;
}

.legacy-project-grid h3 {
  margin-bottom: 5px !important;
  font-size: 22px !important;
}

.legacy-project-grid p {
  font-size: 16px !important;
  line-height: 1.28 !important;
}

.closing h2 {
  font-size: 104px !important;
  line-height: 0.98 !important;
}

.closing .closing-grid {
  grid-template-columns: 1fr !important;
  gap: 34px !important;
  align-items: center !important;
  justify-items: center;
  text-align: center;
}

.closing .slide-kicker {
  position: absolute;
  top: 76px;
  left: 76px;
}

.closing p {
  max-width: 760px !important;
  margin: 0 auto;
  font-size: 30px !important;
  line-height: 1.34 !important;
}

.closing .final-link-panel {
  width: 100%;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.closing .final-link-panel span {
  font-size: 12px !important;
  letter-spacing: -0.02em;
  white-space: nowrap;
}