.concept-c {
  --c-border: 3px;
}

.c-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: var(--header-height);
  border-bottom: var(--c-border) solid var(--line);
  background: var(--bg);
}

.c-header-inner {
  display: grid;
  height: 100%;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.c-wordmark {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 12px;
  font-family: "Do Hyeon", sans-serif;
  font-size: 24px;
  text-decoration: none;
}

.c-wordmark img {
  width: 23px;
  height: 41px;
  object-fit: contain;
}

.c-nav {
  display: flex;
  gap: 8px;
}

.c-nav a {
  min-width: 72px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--line);
  background: var(--surface);
  font-family: "Archivo Black", sans-serif;
  font-size: 11px;
  text-decoration: none;
}

.c-nav a:hover {
  background: var(--primary);
}

.c-header-cta {
  justify-self: end;
}

.c-mobile-nav {
  padding: 16px;
}

.c-mobile-nav a {
  min-height: 52px;
  display: flex;
  align-items: center;
  padding-inline: 16px;
  border-bottom: 2px solid var(--line);
  font-family: "Do Hyeon", sans-serif;
  font-size: 20px;
  text-decoration: none;
}

.c-hero {
  min-height: max(760px, calc(100svh - 130px));
  overflow: hidden;
  padding-block: 42px 27px;
  border-bottom: var(--c-border) solid var(--line);
}

.c-brand-signal {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
  font-family: "Archivo Black", sans-serif;
  font-size: 11px;
}

.c-brand-signal span:first-child {
  padding-bottom: 4px;
  border-bottom: 6px solid var(--accent);
  font-size: 17px;
}

.c-brand-signal span:last-child {
  align-self: end;
}

.c-problem,
.c-hero-lead {
  text-align: center;
}

.c-problem {
  margin-bottom: 17px;
  color: var(--muted);
  font-size: 16px;
  font-weight: 800;
}

.c-hero h1 {
  max-width: 1080px;
  margin: 0 auto 20px;
  font-family: "Do Hyeon", sans-serif;
  font-size: 88px;
  font-weight: 400;
  line-height: 1.02;
  text-align: center;
  word-break: keep-all;
}

.c-hero h1 mark {
  display: inline-block;
  padding: 0 10px 3px;
  border: 3px solid var(--line);
  background: var(--primary);
  color: var(--ink);
  transform: rotate(-1deg);
}

.c-hero-lead {
  max-width: 700px;
  margin: 0 auto 26px;
  font-size: 18px;
  line-height: 1.6;
}

.c-hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0 auto 18px;
}

.c-format-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 26px;
}

.c-format-button {
  min-width: 118px;
  min-height: 46px;
  padding: 0 14px;
  border: 2px solid var(--line);
  background: var(--surface);
  font-family: "Archivo Black", sans-serif;
  font-size: 10px;
}

.c-format-button.is-active {
  background: var(--ink);
  color: var(--surface);
}

.c-shuffle {
  background: var(--accent);
}

.c-format-stage {
  position: relative;
  height: 332px;
}

.c-format-card {
  position: absolute;
  top: 0;
  left: 50%;
  width: 390px;
  overflow: hidden;
  border: 4px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
  box-shadow: 9px 9px 0 var(--ink);
  transform-origin: center;
}

.c-format-card > div:last-child {
  display: flex;
  min-height: 47px;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 12px;
  border-top: 3px solid var(--line);
}

.c-format-card h2 {
  margin-bottom: 0;
  font-family: "Do Hyeon", sans-serif;
  font-size: 23px;
  font-weight: 400;
}

.c-format-card span {
  font-family: "Archivo Black", sans-serif;
  font-size: 10px;
}

.c-card-one {
  transform: translate(-320px, 34px) rotate(-5deg);
}

.c-card-two {
  z-index: 2;
  transform: translate(0, 0) rotate(2deg);
}

.c-card-three {
  transform: translate(320px, 45px) rotate(5deg);
}

.c-format-stage[data-format="shorts"] .project-image {
  aspect-ratio: 9 / 14;
}

.c-format-stage[data-format="shorts"] .c-format-card {
  width: 250px;
}

.c-format-stage[data-format="square"] .project-image {
  aspect-ratio: 1;
}

.c-format-stage[data-format="square"] .c-format-card {
  width: 330px;
}

.c-play-sticker {
  position: absolute;
  z-index: 5;
  padding: 11px 16px;
  border: 3px solid var(--line);
  font-family: "Archivo Black", sans-serif;
  font-size: 10px;
}

.c-sticker-pink {
  top: 13px;
  left: 20%;
  background: var(--accent);
  transform: rotate(7deg);
}

.c-sticker-lime {
  right: 20%;
  bottom: 0;
  background: var(--primary);
  transform: rotate(-5deg);
}

.c-index {
  display: inline-flex;
  margin-bottom: 26px;
  padding: 9px 12px;
  border: 2px solid var(--line);
  background: var(--surface);
  font-family: "Archivo Black", sans-serif;
  font-size: 10px;
}

.c-story {
  padding-block: 102px;
  border-bottom: var(--c-border) solid var(--line);
  background: var(--ink);
  color: var(--surface);
}

.c-story-grid {
  display: grid;
  grid-template-columns: .68fr 1.32fr;
  gap: 70px;
  align-items: center;
}

.c-story .c-index {
  border-color: var(--surface);
  background: var(--accent);
  color: var(--ink);
}

.c-story h2,
.c-build h2,
.c-score h2,
.c-work h2,
.c-about h2,
.c-contact h2 {
  margin-bottom: 0;
  font-family: "Do Hyeon", sans-serif;
  font-size: 62px;
  font-weight: 400;
  line-height: 1.03;
  word-break: keep-all;
}

.c-branch {
  display: grid;
  grid-template-columns: 1.1fr 90px 1fr;
  align-items: center;
}

.c-branch-source {
  overflow: hidden;
  border: 3px solid var(--surface);
}

.c-branch-source img {
  aspect-ratio: 16 / 9;
}

.c-branch-source span {
  display: block;
  padding: 10px 12px;
  border-top: 2px solid var(--surface);
  font-family: "Archivo Black", sans-serif;
  font-size: 9px;
}

.c-branch-lines {
  height: 180px;
  display: grid;
  align-content: center;
  gap: 42px;
}

.c-branch-lines span {
  display: block;
  height: 2px;
  background: var(--primary);
}

.c-branch-lines span:first-child {
  transform: rotate(-22deg);
  transform-origin: left;
}

.c-branch-lines span:last-child {
  transform: rotate(22deg);
  transform-origin: left;
}

.c-branch-outputs {
  display: grid;
  gap: 10px;
}

.c-branch-outputs article {
  min-height: 70px;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 2px solid var(--surface);
}

.c-branch-outputs article:nth-child(2) {
  background: var(--primary);
  color: var(--ink);
}

.c-branch-outputs article:nth-child(3) {
  background: var(--accent);
  color: var(--ink);
}

.c-branch-outputs svg {
  width: 22px;
  height: 22px;
}

.c-branch-outputs strong {
  font-family: "Archivo Black", sans-serif;
  font-size: 10px;
}

.c-branch-outputs small {
  font-size: 12px;
}

.c-build {
  padding-block: 104px;
  border-bottom: var(--c-border) solid var(--line);
}

.c-build-head,
.c-score-head,
.c-work-head {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 70px;
  align-items: end;
  margin-bottom: 54px;
}

.c-build-head > p,
.c-score-head > p {
  margin-bottom: 2px;
  font-size: 18px;
  line-height: 1.7;
}

.c-module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: var(--c-border) solid var(--line);
}

.c-module {
  min-height: 310px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 28px;
  padding: 24px;
  border-right: var(--c-border) solid var(--line);
}

.c-module:last-child {
  border-right: 0;
}

.c-module > span {
  font-family: "Archivo Black", sans-serif;
  font-size: 9px;
}

.c-module > svg {
  width: 30px;
  height: 30px;
}

.c-module h3 {
  margin-bottom: 12px;
  font-family: "Do Hyeon", sans-serif;
  font-size: 29px;
  font-weight: 400;
  line-height: 1.1;
}

.c-module p {
  margin-bottom: 0;
  font-size: 15px;
  line-height: 1.6;
}

.c-module > b {
  font-size: 32px;
}

.c-module-white {
  background: var(--surface);
}

.c-module-lime {
  background: var(--primary);
}

.c-module-pink {
  background: var(--accent);
}

.c-scope-note {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.6;
}

.c-score {
  padding-block: 104px;
  border-bottom: var(--c-border) solid var(--line);
  background: var(--primary);
}

.c-scoreboard {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: var(--c-border) solid var(--line);
}

.c-scoreboard article {
  min-height: 245px;
  display: grid;
  align-content: space-between;
  padding: 26px;
  border-right: var(--c-border) solid var(--line);
  background: var(--surface);
}

.c-scoreboard article:last-child {
  border-right: 0;
}

.c-scoreboard article:nth-child(2) {
  background: var(--accent);
}

.c-scoreboard article > span {
  font-weight: 800;
}

.c-scoreboard article > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
}

.c-scoreboard del {
  color: var(--muted);
  font-size: 28px;
  font-weight: 800;
}

.c-scoreboard strong {
  font-family: "Do Hyeon", sans-serif;
  font-size: 50px;
  font-weight: 400;
  line-height: 1;
}

.c-scoreboard small {
  font-family: "Archivo Black", sans-serif;
  font-size: 8px;
}

.c-score .demo-metric-note {
  margin: 16px 0 0;
}

.c-work {
  padding-block: 112px 126px;
  border-bottom: var(--c-border) solid var(--line);
}

.c-work-head .site-button {
  justify-self: end;
}

.c-work-mosaic {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 28px 20px;
}

.c-work-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

.c-work-a {
  grid-column: 1 / span 7;
}

.c-work-b {
  grid-column: 8 / span 5;
  margin-top: 68px;
}

.c-work-c {
  grid-column: 1 / span 4;
}

.c-work-d {
  grid-column: 5 / span 4;
  margin-top: -20px;
}

.c-work-e {
  grid-column: 9 / span 4;
  margin-top: 34px;
}

.c-work-card .project-image {
  border: var(--c-border) solid var(--line);
  border-radius: 4px;
}

.c-work-card > div:last-child {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 2px 0;
}

.c-work-card h3 {
  margin-bottom: 0;
  font-family: "Do Hyeon", sans-serif;
  font-size: 25px;
  font-weight: 400;
}

.c-work-card span {
  font-family: "Archivo Black", sans-serif;
  font-size: 9px;
}

.c-about {
  padding-block: 104px;
  border-bottom: var(--c-border) solid var(--line);
  background: var(--accent);
}

.c-about-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 70px;
  align-items: center;
}

.c-about h2 {
  margin-bottom: 28px;
}

.c-about p {
  font-size: 18px;
  line-height: 1.75;
}

.c-about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.c-about-tags span {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border: 2px solid var(--line);
  background: var(--surface);
  font-family: "Archivo Black", sans-serif;
  font-size: 8px;
}

.c-about figure {
  margin: 0;
  border: var(--c-border) solid var(--line);
  background: var(--surface);
  transform: rotate(1.5deg);
}

.c-about figure img {
  aspect-ratio: 4 / 3;
}

.c-about figcaption {
  padding: 11px 13px;
  border-top: 2px solid var(--line);
  font-family: "Archivo Black", sans-serif;
  font-size: 8px;
}

.c-contact {
  padding-block: 104px;
  background: var(--primary);
}

.c-contact-head {
  max-width: 980px;
  margin-bottom: 58px;
}

.c-contact h2 {
  margin-bottom: 24px;
  font-size: 70px;
}

.c-contact-head > p {
  font-size: 19px;
  line-height: 1.7;
}

.c-contact-grid {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 28px;
}

.c-ready-blocks {
  display: grid;
  align-content: start;
  border: var(--c-border) solid var(--line);
}

.c-ready-blocks article {
  min-height: 96px;
  display: grid;
  grid-template-columns: 42px 1fr 32px;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-bottom: var(--c-border) solid var(--line);
  background: var(--surface);
}

.c-ready-blocks article:nth-child(2) {
  background: var(--accent);
}

.c-ready-blocks article span {
  font-family: "Archivo Black", sans-serif;
  font-size: 10px;
}

.c-ready-blocks article strong {
  font-family: "Do Hyeon", sans-serif;
  font-size: 25px;
  font-weight: 400;
}

.c-ready-blocks article svg {
  width: 25px;
  height: 25px;
}

.c-contact-links {
  display: grid;
  gap: 4px;
  padding: 18px;
  background: var(--ink);
  color: var(--surface);
}

.c-contact-links a {
  min-height: 34px;
  display: flex;
  align-items: center;
  font-size: 13px;
  font-weight: 800;
}

.c-form {
  padding: 28px;
  border: var(--c-border) solid var(--line);
  background: var(--surface);
}

.c-form .site-button {
  width: 100%;
}

.c-footer {
  padding-block: 50px;
  border-top: var(--c-border) solid var(--line);
  background: var(--ink);
  color: var(--surface);
}

.c-footer .site-container,
.c-footer .site-container > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.c-footer strong {
  font-family: "Archivo Black", sans-serif;
  font-size: 22px;
}

.c-footer p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.c-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-weight: 800;
}

.concept-c .demo-notice {
  border-color: var(--surface);
}

@media (max-width: 1100px) {
  .c-hero h1 {
    font-size: 74px;
  }

  .c-format-card {
    width: 340px;
  }

  .c-story h2,
  .c-build h2,
  .c-score h2,
  .c-work h2,
  .c-about h2,
  .c-contact h2 {
    font-size: 53px;
  }

  .c-branch {
    grid-template-columns: 1fr 60px 1fr;
  }

  .c-module {
    padding: 18px;
  }

  .c-module h3 {
    font-size: 25px;
  }
}

@media (max-width: 900px) {
  .c-header-inner {
    grid-template-columns: 1fr auto;
  }

  .c-nav,
  .c-header-cta {
    display: none;
  }

  .c-hero {
    min-height: auto;
  }

  .c-format-stage {
    height: auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .c-format-card,
  .c-format-stage[data-format="shorts"] .c-format-card,
  .c-format-stage[data-format="square"] .c-format-card {
    position: relative;
    top: auto;
    left: auto;
    width: auto;
    transform: none !important;
  }

  .c-format-stage[data-format="shorts"] .project-image,
  .c-format-stage[data-format="square"] .project-image {
    aspect-ratio: 16 / 9;
  }

  .c-play-sticker {
    display: none;
  }

  .c-story,
  .c-build,
  .c-score,
  .c-work,
  .c-about,
  .c-contact {
    padding-block: 82px;
  }

  .c-story-grid,
  .c-build-head,
  .c-score-head,
  .c-work-head,
  .c-about-grid,
  .c-contact-grid {
    grid-template-columns: 1fr;
  }

  .c-branch {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .c-branch-lines {
    height: auto;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .c-branch-lines span,
  .c-branch-lines span:first-child,
  .c-branch-lines span:last-child {
    height: 34px;
    width: 2px;
    justify-self: center;
    transform: none;
  }

  .c-branch-outputs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .c-branch-outputs article {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

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

  .c-module:nth-child(2) {
    border-right: 0;
  }

  .c-module:nth-child(-n+2) {
    border-bottom: var(--c-border) solid var(--line);
  }

  .c-scoreboard {
    grid-template-columns: 1fr;
  }

  .c-scoreboard article {
    min-height: 180px;
    border-right: 0;
    border-bottom: var(--c-border) solid var(--line);
  }

  .c-scoreboard article:last-child {
    border-bottom: 0;
  }

  .c-work-head .site-button {
    justify-self: start;
  }

  .c-contact h2 {
    font-size: 58px;
  }
}

@media (max-width: 620px) {
  .c-wordmark {
    font-size: 19px;
  }

  .c-hero {
    padding-block: 20px 26px;
  }

  .c-brand-signal {
    justify-content: flex-start;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 10px;
  }

  .c-problem {
    margin-bottom: 11px;
    font-size: 14px;
    text-align: left;
  }

  .c-hero h1 {
    margin-bottom: 14px;
    font-size: 47px;
    text-align: left;
  }

  .c-hero-lead {
    margin-bottom: 12px;
    font-size: 16px;
    text-align: left;
  }

  .c-hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin-bottom: 12px;
  }

  .c-hero-actions .site-button {
    min-height: 42px;
    padding: 8px 10px;
    font-size: 12px;
  }

  .c-format-controls {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    margin-bottom: 18px;
  }

  .c-format-button {
    min-width: 0;
    min-height: 42px;
    padding: 0 4px;
    font-size: 8px;
  }

  .c-format-controls .icon-button {
    width: 100%;
    height: 42px;
  }

  .c-format-stage {
    grid-template-columns: 1fr;
  }

  .c-format-card:nth-child(n+2) {
    display: none;
  }

  .c-story h2,
  .c-build h2,
  .c-score h2,
  .c-work h2,
  .c-about h2,
  .c-contact h2 {
    font-size: 42px;
  }

  .c-branch-outputs {
    grid-template-columns: 1fr;
  }

  .c-module-grid {
    grid-template-columns: 1fr;
  }

  .c-module,
  .c-module:nth-child(2) {
    min-height: 270px;
    border-right: 0;
    border-bottom: var(--c-border) solid var(--line);
  }

  .c-module:last-child {
    border-bottom: 0;
  }

  .c-work-mosaic {
    grid-template-columns: 1fr;
  }

  .c-work-a,
  .c-work-b,
  .c-work-c,
  .c-work-d,
  .c-work-e {
    grid-column: 1;
    margin-top: 0;
  }

  .c-work-card > div:last-child {
    display: block;
  }

  .c-work-card span {
    display: block;
    margin-top: 5px;
  }

  .c-about figure {
    transform: none;
  }

  .c-contact h2 {
    font-size: 45px;
  }

  .c-form {
    padding: 20px;
  }

  .c-footer .site-container,
  .c-footer .site-container > div {
    align-items: flex-start;
    flex-direction: column;
  }
}