:root {
  --bg: #090b10;
  --fg: #f4f1ea;
  --dim: #8b909c;
  --red: #ff4d5e;
  --green: #3ddc97;
  --acc: #ffb454;
  --beat: 0;
  --ink: #090b10;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
img {
  -webkit-user-drag: none;
  user-drag: none;
  pointer-events: none;
}
html,
body {
  word-break: keep-all;
  overflow-wrap: break-word;
  height: 100%;
  background: #000;
  overflow: hidden;
  font-family: "Noto Sans KR", system-ui, sans-serif;
  color: var(--fg);
}
#stage {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1920px;
  height: 1080px;
  transform-origin: 0 0;
  background: var(--bg);
  overflow: hidden;
}
#bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
#glow {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1500px;
  height: 1500px;
  margin: -750px 0 0 -750px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    color-mix(in srgb, var(--acc) 30%, transparent),
    transparent 65%
  );
  transform: scale(calc(0.85 + var(--beat) * 0.22));
  opacity: 0.6;
}
#fx {
  position: absolute;
  inset: 0;
}
#fx.shake {
  animation: shake 0.32s linear;
}
@keyframes shake {
  0% {
    transform: translate(0, 0);
  }
  15% {
    transform: translate(-18px, 10px);
  }
  30% {
    transform: translate(16px, -12px);
  }
  45% {
    transform: translate(-10px, -6px);
  }
  60% {
    transform: translate(8px, 8px);
  }
  80% {
    transform: translate(-4px, 2px);
  }
  100% {
    transform: none;
  }
}
#wipe {
  position: absolute;
  inset: 0;
  background: var(--acc);
  transform: translateX(-101%);
  z-index: 4;
  pointer-events: none;
}
#wipe.go {
  animation: wipe 0.45s cubic-bezier(0.7, 0, 0.3, 1);
}
@keyframes wipe {
  0% {
    transform: translateX(-101%);
  }
  30% {
    transform: none;
  }
  100% {
    transform: translateX(101%);
  }
}
.sc {
  position: absolute;
  inset: 0;
  overflow: hidden;
  visibility: hidden;
}
.sc.on {
  visibility: visible;
}
.sc.solid {
  background: var(--acc);
  color: var(--ink);
}
.a,
.ch,
.seq,
.wd,
.lit,
.blk,
.mvd {
  opacity: 0;
}
.sc.on .a {
  animation: var(--an, up) var(--du, 0.6s) cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: calc(var(--d, 0s) - var(--lt, 0s));
}
.up {
  --an: up;
}
.pop {
  --an: pop;
  --du: 0.5s;
}
.l {
  --an: sl;
}
.r {
  --an: sr;
}
.wp {
  --an: wp;
  --du: 0.9s;
}
@keyframes up {
  from {
    opacity: 0;
    transform: translateY(70px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes pop {
  from {
    opacity: 0;
    transform: scale(2.4);
    filter: blur(24px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}
@keyframes sl {
  from {
    opacity: 0;
    transform: translateX(-260px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes sr {
  from {
    opacity: 0;
    transform: translateX(260px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes wp {
  from {
    opacity: 1;
    clip-path: inset(0 100% 0 0);
  }
  to {
    opacity: 1;
    clip-path: inset(0 0 0 0);
  }
}
.sc.on .ch {
  animation: drop 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes drop {
  from {
    opacity: 0;
    transform: translateY(-140px) scale(1.6);
    filter: blur(14px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}
.ch {
  display: inline-block;
}
.sp {
  display: inline-block;
  width: 0.28em;
}
.sc.on .seq {
  animation: seq var(--du) cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes seq {
  0% {
    opacity: 0;
    transform: translateY(60px) scale(0.96);
  }
  7% {
    opacity: 1;
    transform: none;
  }
  93% {
    opacity: 1;
    transform: none;
  }
  100% {
    opacity: 0;
    transform: translateY(-40px);
  }
}
.sc.on .wd {
  animation: wd var(--du) linear both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes wd {
  0% {
    opacity: 0;
    transform: scale(1.6);
  }
  10% {
    opacity: 1;
    transform: scale(1);
  }
  88% {
    opacity: 1;
    transform: scale(1.05);
  }
  100% {
    opacity: 0;
    transform: scale(1.1);
  }
}
.sc.on .lit {
  animation: lit 0.4s both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes lit {
  from {
    opacity: 0.25;
  }
  to {
    opacity: 1;
    border-top-color: var(--acc);
  }
}
.sc.on .blk {
  animation: blk 0.3s both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes blk {
  from {
    opacity: 1;
    background: #1c202b;
  }
  to {
    opacity: 1;
    background: var(--green);
  }
}
.sc.on .blk.bad {
  animation: bad var(--du) both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes bad {
  0% {
    opacity: 1;
    background: #1c202b;
  }
  15% {
    opacity: 1;
    background: var(--red);
  }
  55% {
    opacity: 1;
    background: #ffb454;
  }
  100% {
    opacity: 1;
    background: var(--green);
  }
}
.sc.on .mvd {
  animation: mv 1.3s cubic-bezier(0.7, 0, 0.2, 1) both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes mv {
  from {
    opacity: 1;
    transform: translate(var(--x0), var(--y0));
  }
  to {
    opacity: 1;
    transform: translate(var(--x1), var(--y1));
    background: var(--c);
  }
}
.mq {
  position: absolute;
  left: 0;
  top: var(--t, 300px);
  white-space: nowrap;
  font-size: 420px;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px #ffffff14;
  animation: mq 9s linear infinite;
}
.solid .mq {
  -webkit-text-stroke: 2px #0000001a;
}
@keyframes mq {
  to {
    transform: translateX(-50%);
  }
}
.tagc {
  position: absolute;
  left: 120px;
  top: 70px;
  font:
    700 26px "JetBrains Mono",
    monospace;
  letter-spacing: 0.18em;
  color: var(--acc);
  display: flex;
  align-items: center;
  gap: 18px;
}
.tagc::before {
  content: "";
  width: 60px;
  height: 4px;
  background: currentColor;
}
.solid .tagc {
  color: var(--ink);
}
.hd {
  position: absolute;
  left: 120px;
  top: 150px;
  font-size: 100px;
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
}
.hd em {
  font-style: normal;
  color: var(--acc);
}
.dim {
  color: var(--dim);
}
.solid .dim {
  color: #090b10aa;
}
.foot {
  position: absolute;
  left: 120px;
  right: 120px;
  bottom: 70px;
  font-size: 32px;
  font-weight: 300;
  color: #b9bcc6;
}
.mono {
  font-family: "JetBrains Mono", monospace;
}
/* 인트로 */
.word {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 400px;
  font-weight: 900;
  letter-spacing: -0.03em;
}
.word.o {
  color: transparent;
  -webkit-text-stroke: 6px var(--fg);
}
.word.c {
  color: var(--acc);
}
.name {
  position: absolute;
  left: 0;
  right: 0;
  top: 250px;
  text-align: center;
  font-size: 400px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
}
.ring {
  position: absolute;
  left: 50%;
  top: 44%;
  width: 400px;
  height: 400px;
  margin: -200px;
  border: 8px solid var(--acc);
  border-radius: 50%;
}
.sc.on .ring {
  animation: ring 1.1s cubic-bezier(0.1, 0.8, 0.2, 1) both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes ring {
  from {
    opacity: 1;
    transform: scale(0.2);
  }
  to {
    opacity: 0;
    transform: scale(6);
  }
}
.subc {
  position: absolute;
  left: 0;
  right: 0;
  text-align: center;
}
/* 통계 */
.stats {
  position: absolute;
  left: 120px;
  right: 120px;
  top: 330px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
}
.stat {
  border-top: 6px solid var(--acc);
  padding-top: 26px;
}
.stat .n {
  font-size: 230px;
  font-weight: 900;
  line-height: 1;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.stat .n small {
  font-size: 64px;
  font-weight: 300;
  color: var(--dim);
  margin-left: 10px;
}
.stat p {
  font-size: 36px;
  margin-top: 22px;
  line-height: 1.45;
}
.stat p em {
  display: block;
  font-style: normal;
  color: var(--dim);
  font-size: 26px;
}
/* 스택 */
.rowl {
  position: absolute;
  left: 120px;
  right: 120px;
  display: flex;
  align-items: center;
  gap: 40px;
  height: 90px;
}
.rowl b {
  width: 520px;
  font-size: 54px;
  font-weight: 900;
}
.rowl .tr {
  flex: 1;
  height: 34px;
  background: #ffffff14;
  position: relative;
  overflow: hidden;
}
.rowl .fl {
  position: absolute;
  inset: 0;
  background: var(--acc);
  transform-origin: left;
}
.sc.on .fl {
  animation: grow 0.9s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes grow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(var(--w));
  }
}
.s2 .n {
  font-size: 140px;
}
.rowl.s {
  height: 56px;
}
.rowl.s b {
  font-size: 36px;
  width: 260px;
}
.rowl.s span {
  font-size: 28px;
  width: 120px;
}
.rowl span {
  width: 270px;
  font:
    700 28px "JetBrains Mono",
    monospace;
  color: #cfcdc6;
  text-align: right;
}
/* 공통 */
.ln {
  position: absolute;
  left: 120px;
  right: 120px;
}
.steps {
  position: absolute;
  left: 120px;
  right: 120px;
  display: flex;
  gap: 20px;
}
.st {
  flex: 1;
  border-top: 5px solid #ffffff30;
  padding-top: 18px;
  font-size: 36px;
  line-height: 1.35;
  opacity: 0.25;
}
.st i {
  display: block;
  font:
    700 26px "JetBrains Mono",
    monospace;
  color: var(--acc);
  font-style: normal;
  margin-bottom: 8px;
}
.chips {
  position: absolute;
  left: 120px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.chips span {
  border: 2px solid #ffffff55;
  border-radius: 100px;
  padding: 8px 26px;
  font:
    400 28px "JetBrains Mono",
    monospace;
}
.box {
  border: 3px solid #ffffff55;
  padding: 26px 40px;
  font-size: 50px;
  font-weight: 500;
}
.pn {
  position: absolute;
  left: 120px;
  right: 120px;
  top: 500px;
}
.pn h3 {
  font-size: 170px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--acc);
}
.pn p {
  font-size: 46px;
  font-weight: 300;
  line-height: 1.55;
  margin-top: 24px;
  max-width: 1680px;
  color: #e4e1d8;
}
.big {
  position: absolute;
  left: 120px;
  right: 120px;
  display: flex;
  align-items: baseline;
  gap: 50px;
  border-bottom: 2px solid #ffffff22;
  padding-bottom: 6px;
}
.big b {
  font-size: 92px;
  font-weight: 900;
  letter-spacing: -0.03em;
  min-width: 640px;
}
.big span {
  font-size: 44px;
  font-weight: 300;
  color: #d8d5cc;
}
.tile {
  position: absolute;
  width: 300px;
  height: 150px;
  border: 2px solid #ffffff30;
  display: grid;
  place-items: center;
  font-size: 34px;
  font-weight: 700;
  text-align: center;
  padding: 0 10px;
  opacity: 0;
}
.sc.on .tile {
  animation: tile 0.55s linear both;
  animation-delay: calc(var(--d) - var(--lt, 0s));
}
@keyframes tile {
  0% {
    opacity: 0;
    background: var(--acc);
    color: var(--ink);
    border-color: var(--acc);
  }
  5% {
    opacity: 1;
    background: var(--acc);
    color: var(--ink);
    border-color: var(--acc);
  }
  30% {
    opacity: 1;
    background: var(--acc);
    color: var(--ink);
    border-color: var(--acc);
  }
  100% {
    opacity: 1;
    background: #ffffff0a;
    color: var(--fg);
  }
}
.dot {
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #6b7080;
  opacity: 0;
}
.sc.on .dot {
  animation:
    dotin 0.35s both,
    hl 0.5s both;
  animation-delay:
    calc(var(--d, 0s) - var(--lt, 0s)), calc(var(--d2, 999s) - var(--lt, 0s));
}
@keyframes dotin {
  from {
    opacity: 0;
    transform: scale(0.2);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes hl {
  from {
    background: #6b7080;
    box-shadow: none;
  }
  to {
    background: var(--c);
    box-shadow: 0 0 26px var(--c);
    transform: scale(1.4);
  }
}
.halo {
  position: absolute;
  width: 210px;
  height: 210px;
  margin: -105px;
  border: 3px dashed var(--c);
  border-radius: 50%;
}
.hp {
  position: absolute;
  top: 0;
  bottom: 0;
  padding-top: 400px;
  text-align: center;
}
.hp h4 {
  font-size: 140px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.hp p {
  font-size: 44px;
  margin-top: 20px;
  font-weight: 300;
}
.pw {
  position: absolute;
  width: 760px;
  height: 400px;
  background: #12141b;
  border: 2px solid #ffffff22;
  padding: 40px;
}
.pw div.t {
  height: 14px;
  background: #ffffff33;
  margin-bottom: 38px;
  border-radius: 7px;
}
.pw .hl {
  position: absolute;
  left: 36px;
  top: 96px;
  width: 520px;
  height: 64px;
}
.cl {
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--acc);
  opacity: 0;
}
.sc.on .cl {
  animation: cell 0.4s cubic-bezier(0.2, 1.4, 0.4, 1) both;
  animation-delay: calc(var(--d, 0s) - var(--lt, 0s));
}
@keyframes cell {
  from {
    opacity: 0;
    transform: scale(0.2);
  }
  to {
    opacity: var(--o);
    transform: none;
  }
}
.sc.on .dm {
  animation: dmm 0.5s both;
  animation-delay: calc(var(--d, 0s) - var(--lt, 0s));
}
@keyframes dmm {
  from {
    opacity: 1;
  }
  to {
    opacity: 0.16;
  }
}
.term {
  position: absolute;
  left: 120px;
  top: 150px;
  padding: 30px 50px;
  background: #090b10e6;
  border: 2px solid #3ddc9766;
  font-size: 44px;
  line-height: 1.7;
}
.term .mono {
  font-size: 44px;
  letter-spacing: 0;
  color: #d8d5cc;
}
/* 구조도 */
.nd {
  position: absolute;
  border: 3px solid #ffffff55;
  background: #0d1017;
  display: grid;
  place-items: center;
  text-align: center;
  font-weight: 700;
  font-size: 34px;
  line-height: 1.25;
  padding: 6px 10px;
}
.nd small {
  display: block;
  font:
    400 22px "JetBrains Mono",
    monospace;
  color: var(--dim);
  font-weight: 400;
  margin-top: 2px;
}
.nd.hot {
  border-color: var(--red);
  color: var(--red);
}
.nd.ok {
  border-color: var(--green);
  color: var(--green);
}
svg.ar {
  position: absolute;
  left: 0;
  top: 0;
  width: 1920px;
  height: 1080px;
  pointer-events: none;
  overflow: visible;
}
svg .pth {
  fill: none;
  stroke: #9aa0ae;
  stroke-width: 3;
  stroke-dasharray: var(--len, 500);
  stroke-dashoffset: var(--len, 500);
}
.sc.on svg .pth {
  animation: dr 0.55s cubic-bezier(0.4, 0, 0.2, 1) both;
  animation-delay: calc(var(--d, 0s) - var(--lt, 0s));
}
@keyframes dr {
  to {
    stroke-dashoffset: 0;
  }
}
.ahd {
  fill: #9aa0ae;
  opacity: 0;
}
.sc.on .ahd {
  animation: ahd 0.18s both;
  animation-delay: calc(var(--d2, 0s) - var(--lt, 0s));
}
@keyframes ahd {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.eqw {
  position: relative;
  width: 170px;
  height: 110px;
}
.eqm {
  position: absolute;
  inset: 0;
}
.eqm i {
  position: absolute;
  left: 25px;
  width: 120px;
  height: 16px;
  background: currentColor;
  border-radius: 8px;
}
.eqm i:nth-child(1) {
  top: 28px;
}
.eqm i:nth-child(2) {
  top: 66px;
}
.eqm b {
  position: absolute;
  left: 77px;
  top: 4px;
  width: 16px;
  height: 102px;
  background: currentColor;
  transform: rotate(24deg);
  border-radius: 8px;
}
.mini {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  top: 70px;
}
.mini u {
  display: block;
  height: 12px;
  background: #ffffff26;
  border-radius: 6px;
  margin-bottom: 12px;
  text-decoration: none;
}
.th {
  position: relative;
  background: #1c2230;
  border: 1px solid #ffffff22;
}
.mk {
  position: absolute;
  right: 4px;
  top: 2px;
  font-size: 28px;
  font-weight: 900;
  opacity: 0;
}
.sc.on .mk {
  animation: pop2 0.35s cubic-bezier(0.2, 1.6, 0.4, 1) both;
  animation-delay: calc(var(--d, 0s) - var(--lt, 0s));
}
@keyframes pop2 {
  from {
    opacity: 0;
    transform: scale(3);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.frm {
  position: absolute;
  width: 560px;
  height: 340px;
  border: 2px solid #ffffff33;
  border-radius: 14px;
  overflow: hidden;
  background: #111;
}
.frm .bar3 {
  height: 34px;
  background: #1a1d27;
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 0 14px;
}
.frm .bar3 i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #ffffff40;
}
.frm img {
  position: absolute;
  left: 0;
  top: 34px;
  width: 100%;
  height: calc(100% - 34px);
  object-fit: cover;
  object-position: top;
}
.frm.big span {
  font-size: 38px;
  padding: 10px 28px;
}
.frm span {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: var(--acc);
  color: var(--ink);
  font-weight: 900;
  padding: 6px 20px;
  font-size: 28px;
  border-radius: 100px;
}
/* UI */
#ui {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 24px;
  display: flex;
  gap: 16px;
  align-items: center;
  background: linear-gradient(transparent, #000c);
  transition: opacity 0.4s;
  color: #fff;
  font:
    14px "JetBrains Mono",
    monospace;
  z-index: 5;
}
#ui.hide {
  opacity: 0;
}
#ui button {
  white-space: nowrap;
  background: none;
  border: 1px solid #fff5;
  color: #fff;
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
}
#seek {
  flex: 1;
  height: 10px;
  background: #fff3;
  border-radius: 4px;
  cursor: pointer;
  position: relative;
}
#seek i {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  background: var(--acc);
  border-radius: 4px;
  width: 0;
}
#start {
  position: fixed;
  inset: 0;
  z-index: 6;
  display: grid;
  place-items: center;
  background: #000b;
  cursor: pointer;
  text-align: center;
  color: #fff;
}
#start div {
  font-size: clamp(28px, 4vw, 56px);
  font-weight: 900;
}
#start p {
  margin-top: 14px;
  font:
    16px "JetBrains Mono",
    monospace;
  color: #bbb;
}
#start.gone {
  display: none;
}

#arrow-markers {
  position: absolute;
}

@media (max-width: 600px) {
  #ui {
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px;
    font-size: 12px;
  }

  #ui button {
    padding: 6px 8px;
  }

  #tm {
    white-space: nowrap;
  }

  #seek {
    flex: 0 0 100%;
    order: 1;
  }
}