:root {
  --bg: #ffffff;
  --ink: #333333;
  --body: #4f4f4f;
  --muted: #828282;
  --quiet: #bdbdbd;
  --line: #dce0e5;
  --well: #f8fafc;
  --card-title: #20252b;
  --card-meta: #5f6874;
  --card-copy: #8d96a2;
  --overview-title: #20252b;
  --overview-meta: #8d96a2;
  --overview-body: #5f6874;
  --type-h1: 40px;
  --leading-h1: 48px;
  --type-h2: 28px;
  --leading-h2: 32px;
  --type-body-1: 16px;
  --leading-body-1: 22px;
  --type-body-2: 15px;
  --leading-body-2: 18px;
  --type-body-3: 13px;
  --leading-body-3: 18px;
  --type-card-title: 15px;
  --leading-card-title: 20px;
  --type-caps: 12px;
  --leading-caps: 16px;
  --type-nav: 20px;
  --leading-nav: 24px;
  --max: 1314px;
  --page-pad: clamp(28px, 4.236vw, 61px);
  --side: minmax(300px, 360px);
  --wall: minmax(0, 834px);
  --gap: clamp(56px, 8vw, 120px);
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
  --ease-in-out-cubic: cubic-bezier(0.645, 0.045, 0.355, 1);
  --motion-fast: 160ms;
  --motion-standard: 220ms;
  --motion-slow: 300ms;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--max), calc(100vw - (var(--page-pad) * 2)));
  margin: 49px auto 0;
  color: var(--ink);
  font-size: var(--type-nav);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: var(--leading-nav);
}

.brand {
  padding: 0;
}

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

.site-header a {
  transition: color var(--motion-fast) ease, border-color var(--motion-fast) ease;
}

.site-header a:hover {
  color: #000000;
}

main {
  padding-bottom: 80px;
}

.site-intro {
  width: min(var(--max), calc(100vw - (var(--page-pad) * 2)));
  margin: 112px auto 0;
}

.site-intro p {
  width: min(100%, 360px);
  margin: 0;
  color: var(--overview-title);
  font-size: var(--type-body-1);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: var(--leading-body-1);
}

.selected-work-divider {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 149px;
  align-items: center;
  width: min(var(--max), calc(100vw - (var(--page-pad) * 2)));
  margin: 112px auto 0;
  color: var(--ink);
  font-size: var(--type-card-title);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-card-title);
}

.selected-work-divider span:last-child {
  display: block;
  height: 1px;
  background: var(--line);
}

.case-study {
  display: grid;
  grid-template-columns: var(--side) var(--wall);
  gap: var(--gap);
  align-items: start;
  width: min(var(--max), calc(100vw - (var(--page-pad) * 2)));
  margin: 112px auto 0;
}

.case-study + .case-study {
  margin-top: 100px;
}

.case-lockup {
  position: sticky;
  top: 122px;
  display: grid;
  align-content: start;
  width: min(100%, 360px);
  min-height: 476px;
}

.motion-ready .case-lockup .intro,
.motion-ready .case-lockup .attributes,
.motion-ready .case-lockup .metrics {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity var(--motion-standard) var(--ease-out-quart),
    transform var(--motion-standard) var(--ease-out-quart);
}

.motion-ready .case-lockup .attributes {
  transition-delay: 55ms;
}

.motion-ready .case-lockup .metrics {
  transition-delay: 100ms;
}

.motion-ready .case-lockup.is-visible .intro,
.motion-ready .case-lockup.is-visible .attributes,
.motion-ready .case-lockup.is-visible .metrics {
  opacity: 1;
  transform: none;
}

.intro {
  display: block;
}

.kicker {
  margin: 0;
  color: var(--overview-meta);
  font-size: var(--type-caps);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: var(--leading-caps);
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--overview-title);
  font-size: var(--type-h1);
  font-weight: 800;
  letter-spacing: 0;
  line-height: var(--leading-h1);
}

.intro h1 {
  margin: 4px 0 12px;
}

.intro > p:not(.kicker) {
  max-width: 360px;
  margin: 0;
  color: var(--overview-body);
  font-size: var(--type-body-2);
  font-weight: 500;
  line-height: var(--leading-body-2);
  letter-spacing: -0.01em;
}

.attributes {
  display: grid;
  gap: 8px;
  width: max-content;
  margin: 39px 0 0;
  padding: 0;
  color: var(--ink);
  font-size: var(--type-body-3);
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: var(--leading-body-3);
  list-style: none;
}

.attributes li {
  display: flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
}

.attributes li::before {
  width: 10px;
  height: 10px;
  background-image: url("./assets/plus-icon.svg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  content: "";
  flex: 0 0 10px;
}

.metrics {
  display: grid;
  gap: 12px;
  width: 360px;
  margin: 39px 0 0;
}

.metrics div {
  display: grid;
  grid-template-columns: 185fr 175fr;
  align-items: start;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--overview-body);
}

.metrics dt,
.metrics dd {
  margin: 0;
  font-size: var(--type-body-3);
  letter-spacing: 0.01em;
  line-height: var(--leading-body-3);
}

.metrics dt {
  font-weight: 500;
}

.metrics dd {
  font-weight: 600;
}

.screenshot-wall {
  display: grid;
  gap: 60px;
  min-width: 0;
  width: 100%;
  max-width: 834px;
}

.wall-row {
  display: grid;
  gap: 30px;
}

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

.work-card {
  display: grid;
  align-content: start;
  min-width: 0;
}

.media-well {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--well);
  border-radius: 8px;
}

.phone-well {
  aspect-ratio: 402 / 517;
  min-height: 420px;
}

.phone-image {
  width: auto;
  height: clamp(320px, 31vw, 408px);
  max-width: calc(100% - 48px);
  max-height: calc(100% - 48px);
  border-radius: 10% / 4.7%;
  object-fit: contain;
  object-position: center;
  transform-origin: center;
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.full-width {
  width: 100%;
}

.website-well {
  aspect-ratio: 829 / 517;
  min-height: 390px;
}

.website-image {
  width: min(64.5%, 534px);
  height: auto;
  aspect-ratio: 534 / 433;
  object-fit: cover;
  object-position: top center;
  border: 3px solid #000000;
  border-radius: 6px;
  transform-origin: center;
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.app-store-well {
  aspect-ratio: 829 / 517;
  min-height: 390px;
}

.sidekick-web-well {
  aspect-ratio: 829 / 517;
  min-height: 390px;
}

.app-store-image {
  width: auto;
  height: clamp(340px, 34vw, 416px);
  max-width: calc(100% - 48px);
  max-height: calc(100% - 48px);
  border-radius: 10% / 4.7%;
  object-fit: contain;
  object-position: top center;
  transform-origin: center;
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.sidekick-desktop-image {
  width: min(var(--sidekick-desktop-width, 64%), calc(100% - 48px));
  height: auto;
  max-height: calc(100% - 48px);
  object-fit: contain;
  object-position: center;
  transform-origin: center;
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.sidekick-waitlist-image {
  --sidekick-desktop-width: 64%;
}

.sidekick-gallery-image {
  --sidekick-desktop-width: 70.6%;
}

.sidekick-draft-image {
  --sidekick-desktop-width: 45.5%;
}

.system-well {
  min-height: 440px;
  aspect-ratio: 829 / 517;
  background: var(--well);
}

.system-well--nessie,
.system-well--dds-one,
.system-well--dds-two {
  min-height: 680px;
  aspect-ratio: auto;
}

.nessie-reel {
  --nessie-duration: 31.5s;
  --nessie-step: 4.5s;
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: var(--well);
}

.artifact-reel {
  --reel-duration: 31.5s;
  --reel-step: 4.5s;
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: var(--well);
}

.nessie-frame {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(6px) scale(0.996);
  will-change: opacity, transform;
}

.nessie-frame:first-child {
  opacity: 1;
  transform: none;
}

.nessie-reel.is-playing .nessie-frame {
  animation: nessie-frame var(--nessie-duration) var(--ease-in-out-cubic) infinite both;
  animation-delay: var(--reel-offset, 0ms);
}

.nessie-reel.is-playing .nessie-frame:nth-child(2) { animation-delay: calc(var(--reel-offset, 0ms) + var(--nessie-step)); }
.nessie-reel.is-playing .nessie-frame:nth-child(3) { animation-delay: calc(var(--reel-offset, 0ms) + var(--nessie-step) + var(--nessie-step)); }
.nessie-reel.is-playing .nessie-frame:nth-child(4) { animation-delay: calc(var(--reel-offset, 0ms) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step)); }
.nessie-reel.is-playing .nessie-frame:nth-child(5) { animation-delay: calc(var(--reel-offset, 0ms) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step)); }
.nessie-reel.is-playing .nessie-frame:nth-child(6) { animation-delay: calc(var(--reel-offset, 0ms) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step)); }
.nessie-reel.is-playing .nessie-frame:nth-child(7) { animation-delay: calc(var(--reel-offset, 0ms) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step) + var(--nessie-step)); }

.nessie-frame img {
  position: absolute;
  top: 50%;
  left: 50%;
  width: auto;
  height: min(88.2%, 600px);
  max-width: calc(100% - 48px);
  max-height: calc(100% - 48px);
  object-fit: contain;
  object-position: center;
  transform: translate(-50%, -50%);
  box-shadow:
    0 26px 52px rgba(44, 42, 80, 0.09),
    0 0 0 1px rgba(44, 42, 80, 0.04);
}

.nessie-frame--wide img {
  width: min(84%, 696px);
  height: auto;
}

.nessie-reel:hover .nessie-frame,
.nessie-reel:focus-within .nessie-frame {
  animation-play-state: paused;
}

.artifact-frame {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(6px) scale(0.996);
  will-change: opacity, transform;
}

.artifact-frame:first-child {
  opacity: 1;
  transform: none;
}

.artifact-reel.is-playing .artifact-frame {
  animation: artifact-frame var(--reel-duration) var(--ease-in-out-cubic) infinite both;
  animation-delay: var(--reel-offset, 0ms);
}

.artifact-reel.is-playing .artifact-frame:nth-child(2) { animation-delay: calc(var(--reel-offset, 0ms) + var(--reel-step)); }
.artifact-reel.is-playing .artifact-frame:nth-child(3) { animation-delay: calc(var(--reel-offset, 0ms) + var(--reel-step) + var(--reel-step)); }
.artifact-reel.is-playing .artifact-frame:nth-child(4) { animation-delay: calc(var(--reel-offset, 0ms) + var(--reel-step) + var(--reel-step) + var(--reel-step)); }
.artifact-reel.is-playing .artifact-frame:nth-child(5) { animation-delay: calc(var(--reel-offset, 0ms) + var(--reel-step) + var(--reel-step) + var(--reel-step) + var(--reel-step)); }
.artifact-reel.is-playing .artifact-frame:nth-child(6) { animation-delay: calc(var(--reel-offset, 0ms) + var(--reel-step) + var(--reel-step) + var(--reel-step) + var(--reel-step) + var(--reel-step)); }
.artifact-reel.is-playing .artifact-frame:nth-child(7) { animation-delay: calc(var(--reel-offset, 0ms) + var(--reel-step) + var(--reel-step) + var(--reel-step) + var(--reel-step) + var(--reel-step) + var(--reel-step)); }

.artifact-frame img {
  position: absolute;
  top: 50%;
  left: 50%;
  width: auto;
  height: min(88.2%, 456px);
  max-width: calc(100% - 48px);
  max-height: calc(100% - 48px);
  object-fit: contain;
  object-position: center;
  transform: translate(-50%, -50%);
  box-shadow:
    0 26px 52px rgba(44, 42, 80, 0.09),
    0 0 0 1px rgba(44, 42, 80, 0.04);
}

.artifact-frame--wide img,
.dds-v1-frame--wide img {
  width: min(82%, 624px);
  height: auto;
}

.dds-v2-frame--wide img {
  width: min(88%, 728px);
  height: auto;
}

.dds-v2-frame--compact img {
  width: min(76%, 534px);
  height: auto;
}

.dds-v1-frame--composite .dds-v1-overlay {
  width: min(72%, 600px);
  height: auto;
}

.artifact-reel:hover .artifact-frame,
.artifact-reel:focus-within .artifact-frame {
  animation-play-state: paused;
}

.additional-work-reel {
  --reel-duration: 9s;
  --reel-step: 4.5s;
}

.additional-work-reel.is-playing .artifact-frame {
  animation-name: additional-work-frame;
}

.schoolwide-center-frame img {
  width: min(88%, 720px);
  height: auto;
  max-width: calc(100% - 48px);
  max-height: calc(100% - 48px);
}

@keyframes nessie-frame {
  0% {
    opacity: 0;
    transform: translateY(6px) scale(0.996);
  }

  2.7%, 11.6% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  14.2%, 100% {
    opacity: 0;
    transform: translateY(-4px) scale(1);
  }
}

@keyframes artifact-frame {
  0% {
    opacity: 0;
    transform: translateY(6px) scale(0.996);
  }

  2.7%, 11.6% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  14.2%, 100% {
    opacity: 0;
    transform: translateY(-4px) scale(1);
  }
}

@keyframes additional-work-frame {
  0% {
    opacity: 0;
    transform: translateY(6px) scale(0.996);
  }

  5%, 43% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  50%, 100% {
    opacity: 0;
    transform: translateY(-4px) scale(1);
  }
}

.app-store-well::after {
  position: absolute;
  left: 50%;
  bottom: -50px;
  width: 260px;
  height: 211px;
  transform: translateX(-50%);
  background: linear-gradient(to bottom, rgba(248, 250, 252, 0), var(--well) 28%);
  content: "";
  pointer-events: none;
}

.work-card h2 {
  margin: 16px 0 0 4px;
  color: var(--card-meta);
  font-size: var(--type-card-title);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-card-title);
  overflow-wrap: anywhere;
}

.full-width h2 {
  margin-left: 4px;
}

.work-card h2 span {
  color: var(--card-title);
}

.work-card p {
  width: calc(100% - 8px);
  max-width: 394px;
  margin: 6px 0 0 4px;
  color: var(--card-copy);
  font-size: var(--type-body-2);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-body-2);
  overflow-wrap: break-word;
}

.full-width p {
  width: calc(100% - 8px);
  max-width: 571px;
  margin-left: 4px;
}

.work-card strong {
  color: inherit;
  font-weight: 750;
}

.additional-work {
  scroll-margin-top: 28px;
  width: min(var(--max), calc(100vw - (var(--page-pad) * 2)));
  margin: 124px auto 0;
}

.additional-work-heading {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 43px;
  align-items: center;
}

.additional-work-heading h2 {
  margin: 0;
  color: var(--ink);
  font-size: var(--type-card-title);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-card-title);
}

.additional-work-heading span {
  display: block;
  height: 1px;
  background: var(--line);
}

.additional-work-list {
  display: grid;
  gap: 96px;
  margin-top: 92px;
}

.additional-work-item {
  display: grid;
  grid-template-columns: var(--side) var(--wall);
  gap: var(--gap);
  align-items: start;
}

.additional-work-copy {
  display: grid;
  align-content: start;
  width: min(100%, 360px);
  padding-top: 1px;
}

.additional-work-copy .additional-work-meta {
  width: auto;
  max-width: none;
  margin: 0;
  color: var(--overview-meta);
  font-size: var(--type-caps);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: var(--leading-caps);
  text-transform: uppercase;
}

.additional-work-copy h3 {
  margin: 4px 0 0;
  color: var(--overview-title);
  font-size: var(--type-h2);
  font-weight: 800;
  letter-spacing: 0;
  line-height: var(--leading-h2);
}

.additional-work-copy p:not(.additional-work-meta) {
  width: min(100%, 360px);
  max-width: 360px;
  margin: 12px 0 0;
  color: var(--overview-body);
  font-size: var(--type-body-2);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-body-2);
}

.additional-work-media {
  min-height: 390px;
  aspect-ratio: 829 / 517;
  background: var(--well);
}

.about-section {
  scroll-margin-top: 28px;
  width: min(var(--max), calc(100vw - (var(--page-pad) * 2)));
  margin: 124px auto 0;
}

.about-rule {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 149px;
  align-items: center;
  color: var(--ink);
  font-size: var(--type-card-title);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-card-title);
}

.about-rule span:last-child {
  display: block;
  height: 1px;
  background: var(--line);
}

.about-list {
  display: grid;
  gap: 44px;
  margin-top: 92px;
}

.about-row {
  display: grid;
  grid-template-columns: var(--side) var(--wall);
  gap: var(--gap);
  align-items: start;
}

.about-row h2 {
  margin: 3px 0 0;
  color: var(--overview-title);
  font-size: var(--type-caps);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: var(--leading-caps);
  text-transform: uppercase;
}

.about-row p {
  max-width: 840px;
  margin: 0;
  color: var(--overview-title);
  font-size: var(--type-body-1);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: var(--leading-body-1);
}

.about-row a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(32, 37, 43, 0.34);
  text-underline-offset: 0.18em;
  transition: text-decoration-color var(--motion-fast) ease;
}

.about-row a:hover {
  text-decoration-color: rgba(32, 37, 43, 0.8);
}

.site-footer {
  background: #02030a;
  color: #ffffff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 296px;
  width: min(1296px, calc(100vw - (var(--page-pad) * 2)));
  margin: 0 auto;
  padding: 48px 0;
}

.footer-content {
  display: grid;
  gap: 40px;
  width: min(100%, 377px);
}

.footer-copy {
  margin: 0;
  color: #ffffff;
  font-size: var(--type-body-3);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: var(--leading-body-3);
}

.footer-copy span {
  display: block;
}

.footer-copy a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.5);
  text-underline-offset: 0.18em;
  transition: text-decoration-color var(--motion-fast) ease;
}

.footer-copy a:hover {
  text-decoration-color: rgba(255, 255, 255, 0.9);
}

.footer-mark {
  margin: 0;
  color: #ffffff;
  font-size: var(--type-nav);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: var(--leading-nav);
}

.footer-portrait {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
}

.additional-work-artifact {
  width: auto;
  height: auto;
  max-width: calc(100% - 80px);
  max-height: calc(100% - 80px);
  object-fit: contain;
  object-position: center;
  transform-origin: center;
  transition: box-shadow 220ms ease, transform 220ms ease;
}

.additional-work-photo-set {
  display: flex;
  align-items: center;
  justify-content: center;
  --photo-set-gap: clamp(18px, 3.4vw, 42px);
  gap: var(--photo-set-gap);
  width: min(74%, 620px);
  max-width: calc(100% - 56px);
  max-height: calc(100% - 48px);
}

.additional-work-photo-set--generalized-onboarding,
.additional-work-photo-set--teacher-onboarding-checklist,
.additional-work-photo-set--parent-communities,
.additional-work-photo-set--field-tasks {
  width: min(58%, 500px);
  max-width: calc(100% - 72px);
}

.additional-work-photo {
  width: auto;
  height: auto;
  max-width: min(45%, 235px);
  max-height: 464px;
  border-radius: 9% / 4.2%;
  object-fit: contain;
  object-position: center;
  overflow: hidden;
  transform-origin: center;
  transition: box-shadow 220ms ease, filter 220ms ease, transform 220ms ease;
}

.additional-work-photo-set--generalized-onboarding .additional-work-photo,
.additional-work-photo-set--teacher-onboarding-checklist .additional-work-photo,
.additional-work-photo-set--parent-communities .additional-work-photo,
.additional-work-photo-set--field-tasks .additional-work-photo {
  max-width: calc((100% - var(--photo-set-gap)) / 2);
  max-height: 390px;
}

.additional-work-photo--web-shot {
  width: min(88%, 720px);
  max-width: calc(100% - 48px);
  max-height: calc(100% - 32px);
  border-radius: 2.4% / 3.2%;
}

.additional-work-photo--phone-shot {
  width: auto;
  height: min(390px, calc(100% - 72px));
  max-width: min(45%, 235px);
  max-height: 390px;
}

.additional-work-photo--device-shot,
.additional-work-photo--alpha-shot {
  border-radius: 0;
  overflow: visible;
  transition: box-shadow 220ms ease, filter 220ms ease, transform 220ms ease;
}

.additional-work-artifact--wide {
  width: min(84%, 720px);
}

.additional-work-artifact--large {
  max-width: min(76%, 650px);
  max-height: 456px;
}

.additional-work-artifact--teacher-web-onboarding {
  width: min(92%, 780px);
  max-width: calc(100% - 48px);
  max-height: 456px;
}

.additional-work-artifact--phone {
  width: auto;
  height: min(390px, calc(100% - 72px));
  max-height: 390px;
}

.additional-work-artifact--generalized-onboarding {
  width: min(64%, 560px);
  max-width: calc(100% - 72px);
  max-height: 464px;
}

.additional-work-artifact--teacher-onboarding-checklist {
  width: min(68%, 580px);
  max-width: calc(100% - 64px);
  max-height: 464px;
}

.additional-work-artifact--phone-tall {
  max-height: 464px;
}

.additional-work-artifact--tall {
  max-height: 456px;
  max-width: calc(100% - 140px);
}

.additional-work-artifact--district-attendance {
  width: min(78%, 650px);
  max-width: calc(100% - 72px);
  max-height: 456px;
}

.additional-work-artifact--stack {
  max-height: 472px;
  max-width: calc(100% - 180px);
}

.additional-work-artifact--superset {
  max-height: 456px;
}

.work-card.is-scroll-active .media-well > img:not(.app-store-image):not(.additional-work-artifact--no-hover):not(.additional-work-photo--web-shot):not(.additional-work-photo--device-shot):not(.additional-work-photo--alpha-shot),
.work-card.is-scroll-active .additional-work-photo:not(.additional-work-photo--web-shot):not(.additional-work-photo--device-shot):not(.additional-work-photo--alpha-shot) {
  box-shadow:
    0 72px 58px rgba(0, 0, 0, 0.055),
    0 30px 24px rgba(0, 0, 0, 0.04),
    0 16px 13px rgba(0, 0, 0, 0.03),
    0 9px 7px rgba(0, 0, 0, 0.03),
    0 4px 4px rgba(0, 0, 0, 0.025);
  transform: scale(1.012);
}

.work-card.is-scroll-active .additional-work-photo--device-shot,
.work-card.is-scroll-active .additional-work-photo--alpha-shot,
.work-card.is-scroll-active .additional-work-photo--web-shot {
  box-shadow: none;
  filter:
    drop-shadow(0 22px 20px rgba(0, 0, 0, 0.105))
    drop-shadow(0 7px 9px rgba(0, 0, 0, 0.075));
  transform: scale(1.008);
}

@media (hover: hover) and (pointer: fine) {
  .media-well > img:not(.app-store-image):not(.additional-work-artifact--no-hover):not(.additional-work-photo--web-shot):not(.additional-work-photo--device-shot):not(.additional-work-photo--alpha-shot):hover,
  .additional-work-photo:not(.additional-work-photo--web-shot):not(.additional-work-photo--device-shot):not(.additional-work-photo--alpha-shot):hover {
    box-shadow:
      0 102px 81.6px rgba(0, 0, 0, 0.07),
      0 42.613px 34.091px rgba(0, 0, 0, 0.05),
      0 22.783px 18.226px rgba(0, 0, 0, 0.04),
      0 12.772px 10.218px rgba(0, 0, 0, 0.04),
      0 6.783px 5.426px rgba(0, 0, 0, 0.03),
      0 2.823px 2.258px rgba(0, 0, 0, 0.02);
    transform: scale(1.02);
  }

  .additional-work-photo--device-shot:hover,
  .additional-work-photo--alpha-shot:hover {
    box-shadow: none;
    filter:
      drop-shadow(0 28px 24px rgba(0, 0, 0, 0.12))
      drop-shadow(0 8px 10px rgba(0, 0, 0, 0.08));
    transform: scale(1.02);
  }

  .additional-work-photo--web-shot:hover {
    box-shadow: none;
    filter:
      drop-shadow(0 28px 24px rgba(0, 0, 0, 0.12))
      drop-shadow(0 8px 10px rgba(0, 0, 0, 0.08));
    transform: scale(1.01);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .phone-image,
  .website-image,
  .app-store-image,
  .sidekick-desktop-image,
  .motion-ready .case-lockup .intro,
  .motion-ready .case-lockup .attributes,
  .motion-ready .case-lockup .metrics {
    transition: none;
  }

  .nessie-frame,
  .artifact-frame {
    animation: none;
  }

  .motion-ready .case-lockup .intro,
  .motion-ready .case-lockup .attributes,
  .motion-ready .case-lockup .metrics,
  .nessie-frame:first-child,
  .artifact-frame:first-child {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1280px) {
  :root {
    --page-pad: clamp(28px, 4.6vw, 56px);
    --side: minmax(300px, 360px);
    --gap: clamp(40px, 5.4vw, 68px);
  }

  .case-study {
    grid-template-columns: var(--side) minmax(0, 1fr);
  }

  .additional-work-item {
    grid-template-columns: var(--side) minmax(0, 1fr);
  }

  .case-lockup {
    top: 96px;
  }

  .phone-well {
    min-height: 360px;
  }
}

@media (max-width: 1060px) {
  :root {
    --page-pad: clamp(24px, 5vw, 48px);
  }

  .case-study {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .additional-work-list {
    gap: 80px;
    margin-top: 72px;
  }

  .additional-work-item {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .about-row p {
    max-width: 720px;
  }

  .additional-work-copy {
    width: 100%;
    max-width: 360px;
  }

  .additional-work-copy p:not(.additional-work-meta) {
    width: min(100%, 360px);
    max-width: 360px;
  }

  .case-lockup {
    position: relative;
    top: auto;
    width: 100%;
    max-width: 360px;
    min-height: 0;
  }

  .intro > p:not(.kicker),
  .metrics {
    width: min(100%, 360px);
    max-width: 360px;
  }

  .screenshot-wall {
    max-width: none;
  }

  .phone-well {
    min-height: 420px;
  }
}

@media (max-width: 860px) {
  .site-header {
    margin-top: 14px;
  }

  .site-header nav {
    gap: 18px;
  }

  .case-study {
    margin-top: 70px;
  }

  .site-intro {
    margin-top: 82px;
  }

  .selected-work-divider {
    gap: 24px;
    margin-top: 70px;
  }

  .additional-work {
    margin-top: 92px;
  }

  .about-section {
    margin-top: 92px;
  }

  .additional-work-heading {
    gap: 24px;
  }

  .about-rule {
    gap: 24px;
  }

  .about-list {
    gap: 38px;
    margin-top: 60px;
  }

  .additional-work-list {
    gap: 68px;
    margin-top: 60px;
  }

  .intro > p:not(.kicker),
  .metrics {
    width: min(100%, 360px);
  }

  .screenshot-wall {
    gap: 54px;
  }

  .two-up {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .work-card,
  .full-width {
    width: 100%;
  }

  .media-well,
  .phone-well,
  .website-well,
  .app-store-well,
  .sidekick-web-well,
  .system-well,
  .additional-work-media {
    height: clamp(410px, 78vw, 517px);
    min-height: 0;
    aspect-ratio: auto;
  }

  .system-well--nessie,
  .system-well--dds-one,
  .system-well--dds-two {
    height: clamp(520px, 95vw, 650px);
  }

  .website-image {
    width: min(calc(100% - 48px), 534px);
    height: auto;
    aspect-ratio: 534 / 433;
  }

  .sidekick-desktop-image {
    width: min(calc(100% - 48px), var(--sidekick-mobile-width, 560px));
  }

  .work-card p,
  .full-width p {
    width: calc(100% - 8px);
    max-width: 571px;
  }

}

@media (max-width: 560px) {
  .site-header {
    align-items: flex-start;
    font-size: 13px;
  }

  .site-header nav {
    gap: 12px;
  }

  main {
    padding-bottom: 72px;
  }

  .about-row p {
    font-size: var(--type-body-2);
    line-height: var(--leading-body-2);
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column-reverse;
    gap: 32px;
    min-height: 0;
    padding: 48px 0 52px;
  }

  .footer-content {
    width: 100%;
  }

  .footer-portrait {
    width: 136px;
    height: 136px;
  }

  .media-well,
  .phone-well,
  .website-well,
  .app-store-well,
  .sidekick-web-well,
  .system-well,
  .additional-work-media {
    height: 390px;
  }

  .additional-work-artifact--phone,
  .additional-work-artifact--generalized-onboarding,
  .additional-work-artifact--teacher-onboarding-checklist,
  .additional-work-artifact--teacher-web-onboarding,
  .additional-work-artifact--phone-tall,
  .additional-work-artifact--tall,
  .additional-work-artifact--district-attendance,
  .additional-work-artifact--stack,
  .additional-work-artifact--superset {
    max-height: 342px;
  }

  .additional-work-artifact--phone {
    height: 300px;
    max-height: 300px;
  }

  .additional-work-artifact--generalized-onboarding {
    width: min(calc(100% - 48px), 300px);
  }

  .additional-work-artifact--teacher-onboarding-checklist {
    width: min(calc(100% - 40px), 312px);
  }

  .additional-work-photo-set {
    width: calc(100% - 44px);
    gap: 20px;
  }

  .additional-work-photo {
    max-width: calc(50% - 10px);
    max-height: 342px;
  }

  .additional-work-photo-set--generalized-onboarding,
  .additional-work-photo-set--teacher-onboarding-checklist,
  .additional-work-photo-set--parent-communities,
  .additional-work-photo-set--field-tasks {
    --photo-set-gap: 18px;
    width: calc(100% - 52px);
    max-width: calc(100% - 52px);
  }

  .additional-work-photo-set--generalized-onboarding .additional-work-photo,
  .additional-work-photo-set--teacher-onboarding-checklist .additional-work-photo,
  .additional-work-photo-set--parent-communities .additional-work-photo,
  .additional-work-photo-set--field-tasks .additional-work-photo {
    max-width: calc((100% - var(--photo-set-gap)) / 2);
    max-height: 300px;
  }

  .additional-work-photo--web-shot {
    width: calc(100% - 32px);
    max-width: calc(100% - 32px);
    max-height: 342px;
  }

  .additional-work-photo--phone-shot {
    height: 300px;
    max-width: calc(100% - 80px);
    max-height: 300px;
  }

  .additional-work-artifact--teacher-web-onboarding {
    width: calc(100% - 32px);
  }

  .additional-work-artifact--district-attendance {
    width: calc(100% - 48px);
  }

  .system-well--nessie,
  .system-well--dds-one,
  .system-well--dds-two {
    height: 470px;
  }

  .phone-image {
    width: auto;
    height: clamp(300px, 86vw, 374px);
    max-width: calc(100% - 48px);
    max-height: calc(100% - 48px);
  }

  .app-store-image {
    width: auto;
    height: clamp(300px, 88vw, 375px);
    max-width: calc(100% - 48px);
    max-height: calc(100% - 48px);
  }
}