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

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

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

.a-wordmark {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 12px;
  font-family: "Archivo Black", sans-serif;
  font-size: 17px;
  text-decoration: none;
}

.a-wordmark img {
  width: 24px;
  height: 43px;
  object-fit: contain;
}

.a-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.a-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.a-nav a:hover {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

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

.a-mobile-nav {
  padding: 18px 16px 24px;
}

.a-mobile-nav a {
  display: flex;
  min-height: 52px;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.a-hero {
  min-height: max(690px, calc(100svh - 150px));
  overflow: hidden;
  border-bottom: var(--a-border) solid var(--line);
}

.a-hero-grid {
  min-height: inherit;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 54px;
  align-items: center;
  padding-block: 54px;
}

.a-hero-copy {
  position: relative;
  z-index: 4;
}

.a-brand-signal {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 42px;
  font-family: "Archivo Black", sans-serif;
  font-size: 40px;
  line-height: .95;
}

.a-brand-signal span:last-child {
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
}

.a-problem {
  max-width: 570px;
  margin-bottom: 22px;
  padding-left: 58px;
  position: relative;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.5;
}

.a-problem::before {
  position: absolute;
  top: 7px;
  left: 0;
  width: 42px;
  height: 11px;
  border: 2px solid var(--line);
  background: var(--accent);
  content: "";
}

.a-hero h1 {
  margin-bottom: 28px;
  font-size: 72px;
  font-weight: 900;
  line-height: 1.06;
  word-break: keep-all;
}

.a-hero h1 mark {
  display: inline;
  padding: 0 6px 4px;
  background: var(--primary);
  color: var(--ink);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.a-hero-lead {
  max-width: 580px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.7;
  word-break: keep-all;
}

.a-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.a-hero-stage {
  position: relative;
  height: 640px;
}

.a-hero-frame {
  position: absolute;
  z-index: 2;
  margin: 0;
  overflow: hidden;
  border: 4px solid var(--line);
  background: var(--surface);
  transform-origin: center;
}

.a-hero-frame figcaption {
  display: flex;
  min-height: 43px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-top: 3px solid var(--line);
  font-size: 12px;
  font-weight: 900;
}

.a-frame-one {
  top: 22px;
  right: -8px;
  width: 72%;
  transform: rotate(2deg);
}

.a-frame-two {
  top: 260px;
  left: 2px;
  width: 63%;
  transform: rotate(-3deg);
}

.a-frame-three {
  right: 18px;
  bottom: 18px;
  width: 49%;
  transform: rotate(1.5deg);
}

.a-sticker {
  position: absolute;
  z-index: 6;
  padding: 11px 16px;
  border: 3px solid var(--line);
  font-family: "Archivo Black", sans-serif;
  font-size: 11px;
  line-height: 1;
}

.a-sticker-pink {
  top: 220px;
  right: -12px;
  background: var(--accent);
  transform: rotate(5deg);
}

.a-sticker-lime {
  bottom: 74px;
  left: 38%;
  background: var(--primary);
  transform: rotate(-5deg);
}

.a-running-line {
  overflow: hidden;
  padding: 21px 0 23px;
  border-bottom: var(--a-border) solid var(--line);
  background: var(--accent);
  white-space: nowrap;
}

.a-running-line div {
  width: max-content;
  font-family: "Archivo Black", sans-serif;
  font-size: 34px;
  line-height: 1;
  animation: a-marquee 24s linear infinite;
}

@keyframes a-marquee {
  to {
    transform: translateX(-50%);
  }
}

.a-section-kicker {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 42px;
  font-family: "Archivo Black", sans-serif;
  font-size: 12px;
  line-height: 1;
}

.a-section-kicker span:first-child {
  display: grid;
  width: 39px;
  height: 28px;
  place-items: center;
  border: 2px solid currentColor;
  background: var(--accent);
  color: var(--ink);
}

.a-section-kicker-dark span:first-child {
  background: var(--ink);
  color: var(--surface);
}

.a-friction {
  padding-block: 104px 112px;
  border-bottom: var(--a-border) solid var(--line);
  background: var(--ink);
  color: var(--surface);
}

.a-friction-head {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 70px;
  align-items: end;
  margin-bottom: 70px;
}

.a-friction h2,
.a-method h2,
.a-metrics h2,
.a-work h2,
.a-about h2,
.a-contact h2 {
  margin-bottom: 0;
  font-size: 58px;
  font-weight: 900;
  line-height: 1.1;
  word-break: keep-all;
}

.a-friction-head p,
.a-method-head > p,
.a-work-head > p {
  margin-bottom: 4px;
  font-size: 19px;
  line-height: 1.7;
}

.a-friction-list {
  border-top: 2px solid var(--surface);
}

.a-friction-list article {
  display: grid;
  min-height: 94px;
  grid-template-columns: 1fr 32px;
  align-items: center;
  gap: 20px;
  border-bottom: 2px solid var(--surface);
  font-size: 25px;
  font-weight: 800;
}

.a-friction-list svg {
  width: 25px;
  height: 25px;
  color: var(--primary);
}

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

.a-method-head {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 70px;
  align-items: end;
  margin-bottom: 68px;
}

.a-method-rows {
  border-top: var(--a-border) solid var(--line);
}

.a-method-row {
  display: grid;
  min-height: 190px;
  grid-template-columns: 84px 1fr .9fr;
  align-items: center;
  gap: 34px;
  border-bottom: var(--a-border) solid var(--line);
}

.a-method-number {
  align-self: start;
  padding-top: 40px;
  font-family: "Archivo Black", sans-serif;
  font-size: 25px;
}

.a-method-row h3 {
  margin-bottom: 10px;
  font-size: 30px;
  line-height: 1.25;
}

.a-method-row p {
  margin-bottom: 0;
  font-size: 17px;
  line-height: 1.65;
}

.a-method-visual {
  min-height: 112px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 16px;
  border: 3px solid var(--line);
  background: var(--surface);
}

.a-brief-visual span {
  display: grid;
  min-height: 48px;
  flex: 1;
  place-items: center;
  border: 2px solid var(--line);
  font-family: "Archivo Black", sans-serif;
  font-size: 9px;
}

.a-brief-visual span:nth-child(2) {
  background: var(--accent);
}

.a-format-visual span {
  display: block;
  border: 3px solid var(--line);
  background: var(--primary);
}

.ratio-landscape {
  width: 92px;
  aspect-ratio: 16 / 9;
}

.ratio-portrait {
  width: 42px;
  aspect-ratio: 9 / 16;
  background: var(--accent) !important;
}

.ratio-square {
  width: 58px;
  aspect-ratio: 1;
}

.a-feedback-visual {
  align-items: stretch;
  flex-direction: column;
}

.a-feedback-visual span {
  display: block;
  height: 18px;
  border: 2px solid var(--line);
  background: var(--accent);
}

.a-feedback-visual span:nth-child(2) {
  width: 78%;
  background: var(--primary);
}

.a-feedback-visual span:nth-child(3) {
  width: 56%;
  background: var(--ink);
}

.a-output-visual {
  flex-wrap: wrap;
}

.a-output-visual span {
  padding: 10px;
  border: 2px solid var(--line);
  font-family: "Archivo Black", sans-serif;
  font-size: 9px;
}

.a-output-visual svg {
  width: 16px;
  height: 16px;
}

.a-scope-note {
  margin: 20px 0 0;
  font-size: 12px;
  line-height: 1.6;
}

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

.a-metrics h2 {
  max-width: 980px;
  margin-bottom: 58px;
}

.a-metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: var(--a-border) solid var(--line);
  background: var(--surface);
}

.a-metric-grid article {
  min-height: 250px;
  padding: 28px;
  border-right: var(--a-border) solid var(--line);
}

.a-metric-grid article:last-child {
  border-right: 0;
}

.a-metric-label {
  font-size: 14px;
  font-weight: 800;
}

.a-metric-grid article > div {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 52px;
}

.a-metric-grid del {
  color: var(--muted);
  font-size: 34px;
  font-weight: 800;
}

.a-metric-grid strong {
  font-size: 50px;
  line-height: 1;
}

.a-metric-grid svg {
  width: 28px;
  height: 28px;
}

.a-metrics .demo-metric-note {
  margin: 16px 0 0;
}

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

.a-work-head {
  width: min(1200px, 100%);
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 70px;
  align-items: end;
  margin: 0 auto 60px;
}

.a-work-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 34px 22px;
}

.a-work-card {
  grid-column: span 4;
  color: inherit;
  text-decoration: none;
}

.a-work-wide {
  grid-column: span 8;
}

.a-work-tall {
  grid-column: 5 / span 8;
}

.a-work-card .project-image {
  border: var(--a-border) solid var(--line);
}

.a-work-card > div:last-child {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-top: 14px;
}

.a-work-card h3 {
  margin-bottom: 0;
  font-size: 22px;
}

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

.a-about {
  padding-block: 112px;
  border-bottom: var(--a-border) solid var(--line);
  background: var(--ink);
  color: var(--surface);
}

.a-about-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 72px;
  align-items: center;
}

.a-about h2 {
  margin-bottom: 32px;
}

.a-about-copy > p {
  font-size: 18px;
  line-height: 1.8;
}

.a-about-point {
  margin-top: 34px;
  padding: 22px 0 0;
  border-top: 2px solid var(--primary);
  color: var(--primary);
  font-weight: 800;
}

.a-about-image {
  margin: 0;
  border: 3px solid var(--surface);
}

.a-about-image img {
  aspect-ratio: 4 / 3;
  filter: grayscale(1) contrast(1.12);
}

.a-about-image figcaption {
  padding: 11px 13px;
  border-top: 2px solid var(--surface);
  font-family: "Archivo Black", sans-serif;
  font-size: 9px;
}

.a-contact {
  padding-block: 112px;
  background: var(--primary);
}

.a-contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 76px;
}

.a-contact h2 {
  margin-bottom: 28px;
}

.a-contact-copy > p {
  font-size: 18px;
  line-height: 1.7;
}

.a-ready-list {
  margin: 40px 0;
  padding: 0;
  border-top: 2px solid var(--line);
  list-style: none;
}

.a-ready-list li {
  display: grid;
  min-height: 62px;
  grid-template-columns: 46px 1fr;
  align-items: center;
  border-bottom: 2px solid var(--line);
  font-weight: 800;
}

.a-ready-list span {
  font-family: "Archivo Black", sans-serif;
  font-size: 11px;
}

.a-direct-contact {
  display: grid;
  gap: 5px;
  font-size: 16px;
  font-weight: 800;
}

.a-direct-contact a {
  width: max-content;
  min-height: 36px;
}

.a-form {
  padding: 30px;
  border: var(--a-border) solid var(--line);
  background: var(--surface);
}

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

.a-footer {
  padding-block: 54px;
  border-top: var(--a-border) solid var(--line);
  background: var(--ink);
  color: var(--surface);
}

.a-footer-inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
}

.a-footer strong {
  font-family: "Archivo Black", sans-serif;
  font-size: 26px;
}

.a-footer p {
  margin: 9px 0 0;
  color: var(--muted);
}

.a-footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

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

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

@media (max-width: 1080px) {
  .a-hero h1 {
    font-size: 60px;
  }

  .a-brand-signal {
    font-size: 34px;
  }

  .a-hero-stage {
    height: 570px;
  }

  .a-method-row {
    grid-template-columns: 70px 1.05fr .95fr;
    gap: 24px;
  }

  .a-friction h2,
  .a-method h2,
  .a-metrics h2,
  .a-work h2,
  .a-about h2,
  .a-contact h2 {
    font-size: 48px;
  }
}

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

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

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

  .a-hero-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding-block: 34px 40px;
  }

  .a-brand-signal {
    margin-bottom: 20px;
  }

  .a-hero-stage {
    height: 430px;
  }

  .a-friction,
  .a-method,
  .a-metrics,
  .a-work,
  .a-about,
  .a-contact {
    padding-block: 82px;
  }

  .a-friction-head,
  .a-method-head,
  .a-work-head,
  .a-about-grid,
  .a-contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .a-method-row {
    grid-template-columns: 62px 1fr;
    padding-block: 28px;
  }

  .a-method-number {
    padding-top: 2px;
  }

  .a-method-visual {
    grid-column: 2;
  }

  .a-metric-grid {
    grid-template-columns: 1fr;
  }

  .a-metric-grid article {
    min-height: 190px;
    border-right: 0;
    border-bottom: var(--a-border) solid var(--line);
  }

  .a-metric-grid article:last-child {
    border-bottom: 0;
  }

  .a-metric-grid article > div {
    margin-top: 36px;
  }

  .a-work-card,
  .a-work-wide,
  .a-work-tall {
    grid-column: span 6;
  }
}

@media (max-width: 620px) {
  .a-wordmark span {
    font-size: 14px;
  }

  .a-brand-signal {
    font-size: 28px;
    margin-bottom: 16px;
  }

  .a-problem {
    padding-left: 48px;
    margin-bottom: 13px;
    font-size: 14px;
  }

  .a-hero h1 {
    margin-bottom: 18px;
    font-size: 45px;
    line-height: 1.1;
  }

  .a-hero-lead {
    margin-bottom: 18px;
    font-size: 17px;
  }

  .a-hero-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .a-hero-actions .site-button {
    min-height: 46px;
    padding: 8px 10px;
    font-size: 12px;
  }

  .a-hero-grid {
    gap: 8px;
    padding-block: 26px 30px;
  }

  .a-hero-stage {
    height: 180px;
    margin-top: 6px;
  }

  .a-frame-one {
    top: 0;
    width: 64%;
  }

  .a-frame-two {
    top: 58px;
    width: 58%;
  }

  .a-frame-three {
    right: 4px;
    bottom: 0;
    width: 43%;
  }

  .a-hero-frame figcaption {
    min-height: 25px;
    padding: 4px 7px;
    font-size: 7px;
  }

  .a-sticker-pink {
    display: none;
  }

  .a-sticker-lime {
    display: none;
  }

  .a-running-line div {
    font-size: 27px;
  }

  .a-section-kicker {
    margin-bottom: 30px;
  }

  .a-friction h2,
  .a-method h2,
  .a-metrics h2,
  .a-work h2,
  .a-about h2,
  .a-contact h2 {
    font-size: 38px;
  }

  .a-friction-head p,
  .a-method-head > p,
  .a-work-head > p {
    font-size: 17px;
  }

  .a-friction-list article {
    min-height: 78px;
    font-size: 19px;
  }

  .a-method-row {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .a-method-number,
  .a-method-visual {
    grid-column: 1;
  }

  .a-method-row h3 {
    font-size: 25px;
  }

  .a-metric-grid strong {
    font-size: 42px;
  }

  .a-work-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .a-work-card,
  .a-work-wide,
  .a-work-tall {
    grid-column: 1;
  }

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

  .a-work-card span {
    display: block;
    margin-top: 5px;
    text-align: left;
  }

  .a-form {
    padding: 20px;
  }

  .a-footer-inner,
  .a-footer-links {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .a-running-line div {
    animation: none;
  }
}