:root {
  --ink: #111310;
  --ink-soft: #242820;
  --paper: #ebe9de;
  --paper-2: #d8d6ca;
  --signal: #ff4d19;
  --signal-2: #c6ff2e;
  --line: rgba(235, 233, 222, 0.19);
  --muted: #aaa99f;
  --shadow: 0 34px 100px rgba(0, 0, 0, 0.44);
  --title-font: "Noto Serif KR", "Nanum Myeongjo", "Batang", serif;
  --body-font: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --mono-font: "IBM Plex Mono", "Consolas", "D2Coding", monospace;
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body-font);
}

button,
a { -webkit-tap-highlight-color: transparent; }

button { font: inherit; }

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--signal-2);
  outline-offset: 3px;
}

.app {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
  background:
    linear-gradient(rgba(235, 233, 222, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(235, 233, 222, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 17% 16%, rgba(255, 77, 25, 0.12), transparent 28%),
    var(--ink);
  background-size: 36px 36px, 36px 36px, auto, auto;
}

.app::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  z-index: 20;
}

.topbar,
.bottombar {
  position: fixed;
  z-index: 30;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  padding-inline: clamp(18px, 3vw, 52px);
  background: rgba(17, 19, 16, 0.86);
  backdrop-filter: blur(16px);
}

.topbar {
  top: 0;
  height: 64px;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.bottombar {
  bottom: 0;
  height: 58px;
  gap: 22px;
  border-top: 1px solid var(--line);
}

.identity {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.identity-mark,
.eyebrow,
.slide-kicker,
.identity-title,
.slide-position,
.button-label {
  font-family: var(--mono-font);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.identity-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--signal);
  color: var(--signal);
  font-size: 11px;
  font-weight: 700;
}

.identity-title { font-size: 11px; color: var(--muted); }

.top-actions { display: flex; align-items: center; gap: 6px; }

.icon-button,
.nav-button,
.close-button {
  border: 0;
  background: transparent;
  color: var(--paper);
  cursor: pointer;
}

.icon-button {
  min-height: 38px;
  padding: 0 11px;
  border-left: 1px solid var(--line);
  font-size: 15px;
}

.button-label {
  margin-left: 7px;
  color: var(--muted);
  font-size: 9px;
}

.icon-button:hover .button-label,
.icon-button[aria-expanded="true"] .button-label { color: var(--signal-2); }

.stage-shell {
  position: fixed;
  inset: 64px 0 58px;
  display: grid;
  place-items: center;
  padding: clamp(10px, 2vw, 28px);
}

.deck {
  position: relative;
  width: min(calc(100vw - 48px), calc((100dvh - 160px) * 16 / 9));
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.deck::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 9.4%, rgba(17, 19, 16, 0.10) 9.4% 9.52%, transparent 9.52%),
    linear-gradient(rgba(17, 19, 16, 0.055) 1px, transparent 1px);
  background-size: auto, 100% 8.33%;
}

.loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 12px;
  text-align: center;
}

.loading-index {
  color: var(--signal);
  font: 700 12px/1 var(--mono-font);
  letter-spacing: 0.16em;
}

.slide {
  position: absolute;
  inset: 0;
  display: none;
  grid-template-columns: minmax(78px, 10%) 1fr;
  opacity: 0;
}

.slide.is-active {
  display: grid;
  opacity: 1;
  animation: slide-in 420ms cubic-bezier(.2, .75, .24, 1);
}

@keyframes slide-in {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: none; }
}

.slide-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 6.3vh 0 4vh;
  border-right: 1px solid rgba(17, 19, 16, 0.16);
  background: rgba(17, 19, 16, 0.035);
}

.slide-number {
  color: var(--signal);
  font: 700 clamp(12px, 1.1vw, 18px)/1 var(--mono-font);
  writing-mode: vertical-rl;
  letter-spacing: 0.16em;
}

.rail-code {
  color: rgba(17, 19, 16, 0.48);
  font: 9px/1 var(--mono-font);
  writing-mode: vertical-rl;
  letter-spacing: 0.18em;
}

.slide-main {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 4.5vw, 76px) clamp(26px, 5vw, 84px) clamp(22px, 3vw, 52px);
}

.slide-head {
  flex: 0 0 auto;
  padding-bottom: clamp(12px, 1.7vw, 26px);
  border-bottom: 2px solid var(--ink);
}

.slide-kicker {
  display: block;
  margin-bottom: 10px;
  color: var(--signal);
  font-size: clamp(8px, .82vw, 12px);
  font-weight: 700;
}

.slide-title {
  max-width: 96%;
  margin: 0;
  font-family: var(--title-font);
  font-size: clamp(25px, 3vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.048em;
  word-break: keep-all;
}

.slide-scroll {
  min-height: 0;
  flex: 1 1 auto;
  overflow: auto;
  overscroll-behavior: contain;
  padding: clamp(16px, 2vw, 30px) 8px 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--signal) rgba(17, 19, 16, 0.08);
}

.slide-content {
  max-width: 100%;
  font-size: clamp(12px, 1.16vw, 18px);
  line-height: 1.58;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.slide-content > :first-child { margin-top: 0; }
.slide-content > :last-child { margin-bottom: 0; }

.slide-content p { margin: 0 0 1em; }

.slide-content strong { font-weight: 800; }

.slide-content em {
  color: #4d5049;
  font-style: normal;
  background: linear-gradient(transparent 68%, rgba(198, 255, 46, .56) 68%);
}

.slide-content code {
  padding: .06em .28em;
  background: rgba(17, 19, 16, .08);
  font-family: var(--mono-font);
  font-size: .9em;
}

.slide-content a {
  color: inherit;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.slide-content a:hover { color: #a82a08; }

.bullet-list {
  margin: .4em 0 1.1em;
  padding: 0;
  list-style: none;
}

.bullet-list li {
  position: relative;
  margin: .48em 0;
  padding-left: calc(22px + var(--depth, 0) * 25px);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: calc(var(--depth, 0) * 25px);
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--signal);
}

.bullet-list li[style*="--depth: 1"]::before,
.bullet-list li[style*="--depth: 2"]::before {
  width: 5px;
  height: 5px;
  border: 1px solid var(--ink);
  background: transparent;
}

blockquote {
  margin: 0 0 1.2em;
  padding: .75em 0 .75em 1.2em;
  border-left: 6px solid var(--signal);
  font-size: 1.05em;
  font-weight: 650;
}

.table-wrap {
  width: 100%;
  margin: .2em 0 1.2em;
  overflow-x: auto;
  border-top: 3px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: .79em;
  line-height: 1.43;
}

th,
td {
  padding: .66em .72em;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(17, 19, 16, .2);
  border-right: 1px solid rgba(17, 19, 16, .12);
}

th:last-child,
td:last-child { border-right: 0; }

th {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono-font);
  font-size: .86em;
  letter-spacing: -.02em;
}

tr:last-child td { border-bottom: 0; }

.image-matrix {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: .4em 0 1.2em;
}

.image-matrix img {
  display: block;
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(17, 19, 16, .26);
  background: #fff;
}

.slide[data-id="1"] .slide-rail { display: none; }

.slide[data-id="1"] {
  grid-template-columns: 1fr;
  background:
    linear-gradient(90deg, var(--signal) 0 18px, transparent 18px),
    var(--ink);
  color: var(--paper);
}

.slide[data-id="1"] .slide-main {
  justify-content: center;
  padding: 9% 11%;
}

.slide[data-id="1"] .slide-head {
  display: block;
  padding: 0;
  border: 0;
}

.slide[data-id="1"] .slide-kicker { display: none; }

.slide[data-id="1"] .slide-title {
  width: 100%;
  max-width: none;
  color: var(--paper);
  font-size: clamp(48px, 4.6vw, 74px);
  line-height: 1.08;
  text-wrap: balance;
}

.slide[data-id="1"] .slide-scroll {
  min-height: auto;
  flex: 0 0 auto;
  overflow: hidden;
  padding: 32px 0 0;
}
.slide[data-id="1"] .slide-content { font-size: clamp(19px, 2vw, 34px); }
.slide[data-id="1"] .slide-content .bullet-list li { padding-left: 0; }
.slide[data-id="1"] .slide-content .bullet-list li::before { display: none; }

.slide[data-id="1"] .slide-content::before {
  content: "2026 / 07 / 29    COMPANY-WIDE AX CHECKPOINT";
  display: block;
  margin-bottom: 28px;
  color: var(--signal-2);
  font: 700 clamp(9px, .8vw, 12px)/1 var(--mono-font);
  letter-spacing: .16em;
}

.slide[data-id="1"] .slide-content::after {
  content: "STUDIO REALIVE · AI CREATIVE UNIT";
  display: block;
  margin-top: 48px;
  color: var(--muted);
  font: 10px/1 var(--mono-font);
  letter-spacing: .14em;
}

.slide[data-layout="statement"] .slide-content {
  display: grid;
  height: 100%;
  align-content: center;
  font-size: clamp(18px, 2vw, 32px);
}

.slide[data-layout="statement"] .bullet-list li { margin: .8em 0; }

.slide[data-layout="dual"] .slide-content > .bullet-list {
  columns: 2;
  column-gap: 7%;
  column-rule: 1px solid rgba(17, 19, 16, .22);
}

.slide[data-layout="dual"] .slide-content > .bullet-list li { break-inside: avoid; }

.slide[data-layout="steps"] .slide-content > .bullet-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  counter-reset: steps;
  border-top: 3px solid var(--ink);
}

.slide[data-layout="steps"] .slide-content > .bullet-list li {
  min-height: 9em;
  margin: 0;
  padding: 2.7em 1.2em 1em;
  border-right: 1px solid var(--ink);
  counter-increment: steps;
}

.slide[data-layout="steps"] .slide-content > .bullet-list li:last-child { border-right: 0; }

.slide[data-layout="steps"] .slide-content > .bullet-list li::before {
  content: "0" counter(steps);
  top: .9em;
  left: 1.5em;
  width: auto;
  height: auto;
  background: none;
  color: var(--signal);
  font: 700 12px/1 var(--mono-font);
}

.slide[data-id="22"] .slide-content,
.slide[data-id="23"] .slide-content {
  border-left: 8px solid var(--signal);
  padding-left: 4%;
}

.slide[data-id="22"] .bullet-list li,
.slide[data-id="23"] .bullet-list li { margin: .8em 0; }

.slide-position {
  display: flex;
  align-items: center;
  min-width: 160px;
  color: var(--muted);
  font-size: 10px;
}

#currentLabel { color: var(--signal-2); }

.position-rule {
  width: 28px;
  height: 1px;
  margin: 0 10px;
  background: var(--line);
}

.progress-track {
  position: relative;
  flex: 1;
  height: 2px;
  overflow: hidden;
  background: var(--line);
}

#progressBar {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background: var(--signal);
  transition: width 260ms ease;
}

.slide-nav { display: flex; gap: 4px; }

.nav-button {
  display: grid;
  width: 38px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line);
}

.nav-button:hover { border-color: var(--signal); color: var(--signal); }
.nav-button:disabled { opacity: .28; cursor: default; }

.notes-panel {
  position: fixed;
  z-index: 61;
  top: 0;
  right: 0;
  width: min(520px, 92vw);
  height: 100dvh;
  overflow: hidden;
  background: #f3f0e4;
  color: var(--ink);
  border-left: 10px solid var(--signal);
  box-shadow: -20px 0 80px rgba(0, 0, 0, .42);
  transform: translateX(105%);
  transition: transform 280ms cubic-bezier(.2, .75, .24, 1);
}

.notes-panel.is-open { transform: translateX(0); }

.notes-head,
.overview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 28px 30px 22px;
  border-bottom: 1px solid rgba(17, 19, 16, .18);
}

.notes-head h2,
.overview-head h2 {
  margin: 5px 0 0;
  font-family: var(--title-font);
  font-size: 27px;
  line-height: 1.2;
}

.eyebrow {
  color: var(--signal);
  font-size: 9px;
  font-weight: 700;
}

.close-button {
  color: inherit;
  font-size: 32px;
  line-height: 1;
}

.notes-body {
  height: calc(100dvh - 108px);
  overflow: auto;
  padding: 26px 30px 50px;
  font-size: 14px;
  line-height: 1.65;
}

.notes-empty {
  color: #676960;
  font-family: var(--mono-font);
  font-size: 12px;
}

.panel-scrim {
  position: fixed;
  z-index: 60;
  inset: 0;
  background: rgba(0, 0, 0, .64);
}

.overview {
  position: fixed;
  z-index: 70;
  inset: 24px;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.overview-head { padding: 22px 26px 18px; }

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1px;
  height: calc(100% - 91px);
  overflow: auto;
  padding: 1px;
  background: rgba(17, 19, 16, .22);
}

.overview-item {
  min-height: 135px;
  padding: 18px;
  border: 0;
  background: var(--paper);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.overview-item:hover,
.overview-item[aria-current="true"] { background: var(--ink); color: var(--paper); }

.overview-item-index {
  display: block;
  margin-bottom: 24px;
  color: var(--signal);
  font: 700 11px/1 var(--mono-font);
}

.overview-item-title {
  display: block;
  font-family: var(--title-font);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  word-break: keep-all;
}

@media (max-width: 760px) {
  .topbar { height: 56px; padding-inline: 12px; }
  .bottombar { height: 58px; padding-inline: 12px; gap: 12px; }
  .button-label,
  .identity-title { display: none; }
  .icon-button { min-width: 38px; padding: 0 8px; }
  .stage-shell { inset: 56px 0 58px; padding: 0; display: block; }
  .deck { width: 100%; height: 100%; aspect-ratio: auto; box-shadow: none; }
  .slide { grid-template-columns: 42px 1fr; }
  .slide-main { padding: 24px 18px 22px 20px; }
  .slide-rail { padding: 28px 0 24px; }
  .slide-title { max-width: 100%; font-size: clamp(24px, 7vw, 34px); }
  .slide-content { font-size: 14px; line-height: 1.55; }
  .slide[data-id="1"] .slide-main { padding: 18% 11%; }
  .slide[data-id="1"] .slide-title { font-size: clamp(38px, 11vw, 44px); }
  .slide[data-id="1"] .slide-content { font-size: 24px; }
  .slide[data-layout="dual"] .slide-content > .bullet-list { columns: 1; }
  .slide[data-layout="steps"] .slide-content > .bullet-list { grid-template-columns: 1fr; }
  .slide[data-layout="steps"] .slide-content > .bullet-list li {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }
  .image-matrix { grid-template-columns: 1fr; }
  .image-matrix img { max-width: 100%; }
  .slide-position { min-width: 102px; }
  .position-rule { width: 12px; margin-inline: 6px; }
  .overview { inset: 0; }
  .overview-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .overview-item { min-height: 124px; padding: 14px; }
  .overview-item-title { font-size: 14px; }
}

@media (max-height: 650px) and (min-width: 761px) {
  .slide-main { padding-top: 28px; padding-bottom: 24px; }
  .slide-title { font-size: clamp(24px, 2.7vw, 40px); }
  .slide-content { font-size: clamp(11px, 1.06vw, 16px); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

@media print {
  html, body { overflow: visible; background: #fff; }
  .topbar, .bottombar, .notes-panel, .overview, .panel-scrim { display: none !important; }
  .stage-shell { position: static; display: block; padding: 0; }
  .deck { width: 100%; overflow: visible; box-shadow: none; }
  .slide { position: relative; display: grid !important; width: 100%; aspect-ratio: 16/9; break-after: page; opacity: 1; }
}