:root {
  --site-paper: #f5f3ed;
  --site-ink: #111316;
  --site-blue: #005dce;
  --site-blue-bright: #006ff7;
  --site-blue-pale: #dce8ff;
  --site-yellow: #ffd800;
  --site-muted: #5f666b;
  --site-line: #dfe1e3;
  --site-card-shadow: 0 4px 2px rgba(12, 12, 13, .03), 0 12px 24px rgba(12, 12, 13, .06);
}

/* Shared visual language from the home page. Dave’s Design Studio intentionally opts out. */
.page--about,
.page--portfolio,
.page--extra,
.page--experiment {
  background: var(--site-paper);
  color: var(--site-ink);
}

.page--about .about-main,
.page--portfolio .about-main,
.page--extra .about-main {
  padding-top: clamp(28px, 5vw, 72px);
  padding-bottom: clamp(56px, 8vw, 120px);
}

.page--about .about-content,
.page--portfolio .about-content,
.page--extra .about-content {
  max-width: 1040px;
  padding: 0 clamp(24px, 5vw, 72px);
}

/* Split-layout Extras pages use the same content edges as portfolio pages. */
.page--extra .portfolio-split {
  width: 100%;
  max-width: 1040px;
  padding: 0 clamp(24px, 5vw, 72px);
}

.about-header {
  gap: 14px;
  margin-bottom: clamp(30px, 4vw, 52px);
}

.about-header__title,
.portfolio-header__title {
  font-family: var(--font-family);
  font-size: clamp(48px, 6vw, 88px);
  font-weight: 800;
  line-height: .96;
  letter-spacing: -.045em;
}

.about-header__title {
  color: var(--site-blue);
}

.about-header__nav-row,
.portfolio-subtitle-row {
  min-height: 32px;
  padding-top: 4px;
  border-top: 0;
}

.about-tabs {
  align-items: center;
  flex: 0 0 auto;
  gap: 0;
  width: fit-content;
  height: 32px;
  padding: 1px;
  border: 1px solid #e6e6e6;
  border-radius: 16px;
  background: #fff;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.about-tabs::before,
.portfolio-subtitle-row .case-study-tabs__list::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 50%;
  left: 0;
  width: var(--tab-indicator-width, 50%);
  height: var(--tab-indicator-height, 28px);
  border-radius: 14px;
  background: var(--site-blue);
  transform: translate3d(var(--tab-indicator-x, 1px), -50%, 0);
  transition: transform 260ms cubic-bezier(.2, .75, .25, 1), width 260ms cubic-bezier(.2, .75, .25, 1);
  pointer-events: none;
}

.about-tabs__tab,
.portfolio-subtitle,
.case-study-tabs__tab {
  font-family: "Google Sans Code", ui-monospace, monospace;
  letter-spacing: .01em;
}

.about-tabs__tab {
  position: relative;
  z-index: 1;
  height: 28px;
  padding: 0 16px;
  border-bottom: 0;
  border-radius: 9px;
  color: var(--site-ink);
  font-size: 13px;
  font-weight: 600;
  line-height: 28px;
  box-shadow: none;
}

.about-tabs__tab.is-active {
  border-bottom: 0;
  background: transparent;
  color: #fff;
  font-weight: 800;
  box-shadow: none;
}

.about-tabs__sep {
  display: none;
}

.portfolio-subtitle-row .case-study-tabs__list {
  flex: 0 0 auto;
  gap: 0;
  width: fit-content;
  height: 32px;
  padding: 1px;
  border: 1px solid #e6e6e6;
  border-radius: 16px;
  background: #fff;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.portfolio-subtitle-row .case-study-tabs__tab {
  position: relative;
  z-index: 1;
  height: 28px;
  padding: 0 16px;
  border: 0;
  border-radius: 9px;
  color: var(--site-ink);
  font-size: 13px;
  font-weight: 600;
  line-height: 28px;
  box-shadow: none;
}

.portfolio-subtitle-row .case-study-tabs__tab.is-active {
  border: 0;
  background: transparent;
  color: #fff;
  font-weight: 800;
  box-shadow: none;
}

.portfolio-subtitle-row .case-study-tabs__sep {
  display: none;
}

.about-download,
.portfolio-project-nav__btn[data-project-next],
.portfolio-prototype-link__btn,
.portfolio-video__gate-submit {
  border-color: #3d69cc;
  border-radius: 4px;
  background: #3d69cc;
  color: #fff;
  font-weight: 800;
  box-shadow: none;
}

.about-download {
  margin-left: auto;
  min-height: 42px;
  padding: 0 16px;
}

.about-download img {
  filter: brightness(0) invert(1);
}

.about-download:hover,
.portfolio-project-nav__btn[data-project-next]:hover,
.portfolio-prototype-link__btn:hover,
.portfolio-video__gate-submit:hover {
  background: var(--site-blue);
}

.portfolio-project-nav__btn[data-project-prev] {
  color: var(--site-blue);
  border-bottom-color: var(--site-yellow);
}

.about-copy {
  color: #35393d;
  font-size: 15px;
  line-height: 1.68;
}

.portfolio-copy__section-title {
  margin: 24px 0 7px;
  color: var(--site-blue);
  font-family: "Google Sans Code", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.portfolio-copy__section-title:first-child {
  margin-top: 0;
}

.portfolio-copy--sections > p {
  margin: 0;
}

.portfolio-copy__more > .portfolio-copy__section-title:first-child {
  margin-top: 8px;
}

.portfolio-copy-tabs__list {
  margin: 0 0 20px;
  background: #edf4ff;
}

.portfolio-copy-tabs__tab {
  border: 0;
  background: transparent;
  color: #3566ad;
  cursor: pointer;
}

.portfolio-copy-tabs__tab.is-active {
  color: #fff;
}

.portfolio-copy-tabs__panel > p {
  margin: 0;
}

@media (max-width: 430px) {
  .portfolio-copy-tabs__tab {
    padding-inline: 10px;
    font-size: 11px;
  }
}

.page--about .about-panel {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid #e6e6e6;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--site-card-shadow);
}

.about-copy__title,
.about-philosophy__heading {
  color: var(--site-ink);
  font-size: 16px;
  font-weight: 800;
}

.about-philosophy {
  gap: 26px;
}

.about-philosophy__top {
  gap: 22px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid #c9d9fc;
  border-radius: 12px;
  background: var(--site-blue-pale);
}

.about-philosophy__rule {
  width: 4px;
  background: var(--site-yellow);
}

.about-philosophy__quote {
  margin-bottom: 18px;
  color: var(--site-blue);
  font-size: clamp(20px, 2.4vw, 31px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -.03em;
}

.about-philosophy__intro,
.about-philosophy__summary p:last-child,
.about-philosophy__section > p:not(.about-philosophy__heading):not(.about-philosophy__tagline),
.about-philosophy__checks,
.about-philosophy__tagline,
.about-philosophy__column ul {
  font-size: 14px;
  line-height: 1.65;
}

.about-philosophy__lead {
  color: var(--site-blue);
  font-size: 18px;
  line-height: 1.5;
}

.about-philosophy__columns {
  gap: 16px;
}

.about-philosophy__column,
.about-philosophy__section {
  padding: 24px;
  border: 1px solid #e6e6e6;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--site-card-shadow);
}

.about-philosophy__checks li::before {
  color: var(--site-blue-bright);
  font-weight: 800;
}

.about-philosophy__tagline {
  color: var(--site-blue);
  font-weight: 700;
}

.portfolio-read-more {
  padding-bottom: 4px;
  border-bottom: 2px solid var(--site-yellow);
  color: var(--site-blue);
  font-weight: 800;
}

.page--portfolio .about-content > .about-copy,
.page--extra .about-content > .about-copy,
.portfolio-split__copy {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid #e6e6e6;
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--site-card-shadow);
}

.portfolio-subtitle {
  color: var(--site-muted);
  font-size: 14px;
  line-height: 1.45;
}

.portfolio-media {
  margin-bottom: 28px;
}

.portfolio-carousel {
  --carousel-radius: 18px;
}

.portfolio-carousel__slide,
.portfolio-video,
.portfolio-video__poster,
.portfolio-split__media,
.portfolio-split__media img {
  border-radius: 18px;
}

.portfolio-carousel__mobile-btn {
  border-color: #c9d9fc;
  background: var(--site-blue-pale);
}

.portfolio-carousel__dot.is-active,
.portfolio-carousel__dot.is-active:hover {
  background: var(--site-blue-bright);
}

.page--experiment .experiment-main {
  padding: clamp(20px, 4vw, 52px);
}

.experiment-viewer {
  border: 1px solid #e6e6e6;
  border-radius: 18px;
  box-shadow: var(--site-card-shadow);
}

.experiment-viewer canvas {
  border-radius: 18px;
}

.experiment-controls__label {
  font-family: "Google Sans Code", ui-monospace, monospace;
  color: var(--site-muted);
}

/* Keep prototype embeds beside their copy through tablet widths. */
@media (min-width: 721px) and (max-width: 900px) {
  .page--extra .portfolio-split--embed {
    grid-template-columns: minmax(0, 1fr) 293px;
    grid-template-areas:
      "header header"
      "copy media";
    column-gap: clamp(28px, 5vw, 62px);
    row-gap: 24px;
  }
}

@media (max-width: 720px) {
  .page--about .about-main,
  .page--portfolio .about-main,
  .page--extra .about-main {
    padding-top: 24px;
    padding-bottom: 64px;
  }

  .page--about .about-content,
  .page--portfolio .about-content,
  .page--extra .about-content {
    padding: 0 18px;
  }

  .page--extra .portfolio-split {
    padding: 0 18px;
  }

  .page--extra .portfolio-split--embed {
    grid-template-areas:
      "header"
      "media"
      "copy";
  }

  .about-header__title,
  .portfolio-header__title {
    font-size: 36px;
  }

  .about-download {
    min-height: 35px;
    height: 35px;
    padding: 0 11px;
    font-size: 11px;
  }

  .about-download img {
    width: 14px;
    height: 14px;
  }

  .about-philosophy__top {
    padding: 22px;
  }

  .about-philosophy__columns {
    gap: 12px;
  }

  .page--portfolio .about-content > .about-copy,
  .page--extra .about-content > .about-copy,
  .portfolio-split__copy {
    padding: 22px;
  }

  .page--about .about-panel {
    padding: 22px;
  }
}

@media (max-width: 430px) {
  .page--about,
  .page--portfolio,
  .page--extra,
  .page--research {
    padding-bottom: calc(66px + env(safe-area-inset-bottom, 0px));
  }

  .page--about .portfolio-project-nav,
  .page--portfolio .portfolio-project-nav,
  .page--extra .portfolio-project-nav,
  .page--research .portfolio-project-nav {
    position: fixed !important;
    z-index: 1000;
    top: auto !important;
    right: 0;
    bottom: 0 !important;
    left: 0;
    transform: none !important;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    min-height: 60px;
    padding: 9px 18px calc(9px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--site-line);
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 -8px 24px rgba(12, 12, 13, .09);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }

  .page--about .portfolio-project-nav__btn,
  .page--portfolio .portfolio-project-nav__btn,
  .page--extra .portfolio-project-nav__btn,
  .page--research .portfolio-project-nav__btn {
    flex: 0 0 92px;
    width: 92px;
    min-height: 38px;
    padding: 0 10px;
    border: 1px solid #3d69cc;
    border-radius: 4px;
    justify-content: center;
  }

  .page--about .portfolio-project-nav__btn[data-project-prev],
  .page--portfolio .portfolio-project-nav__btn[data-project-prev],
  .page--extra .portfolio-project-nav__btn[data-project-prev],
  .page--research .portfolio-project-nav__btn[data-project-prev] {
    padding: 0 10px;
    border: 0;
    border-bottom: 2px solid var(--site-yellow);
    border-radius: 0;
    background: transparent;
    justify-content: center;
  }

  .page--about .portfolio-project-nav__btn[data-project-next],
  .page--portfolio .portfolio-project-nav__btn[data-project-next],
  .page--extra .portfolio-project-nav__btn[data-project-next],
  .page--research .portfolio-project-nav__btn[data-project-next] {
    justify-content: center;
  }

  .about-header__title,
  .portfolio-header__title {
    font-size: 24px;
    letter-spacing: -.025em;
  }

  .about-download {
    min-height: 23px;
    height: 23px;
    padding: 0 8px;
    font-size: 11px;
  }

  .about-download img {
    width: 12px;
    height: 12px;
  }

  .about-copy {
    font-size: 13px;
  }

  .about-philosophy__quote {
    font-size: 19px;
  }

  .about-philosophy__intro,
  .about-philosophy__summary p:last-child,
  .about-philosophy__section > p:not(.about-philosophy__heading):not(.about-philosophy__tagline),
  .about-philosophy__checks,
  .about-philosophy__tagline,
  .about-philosophy__column ul {
    font-size: 12px;
  }
}

.portfolio-prototype-link__btn.portfolio-prototype-link__btn--outline,
.portfolio-prototype-link__btn.portfolio-prototype-link__btn--outline:hover {
  border: 1px solid var(--site-blue);
  background: transparent;
  color: var(--site-blue);
}

/* Shared footer for portfolio and Extras pages. */
.research-footer {
  display: flex;
  align-items: center;
  gap: 25px;
  min-height: 110px;
  padding: 25px clamp(28px, 7vw, 128px);
  background: #111316;
  color: #fff;
  font-size: 12px;
}
.research-footer img { filter: invert(1); }
.research-footer a { margin-left: auto; color: inherit; text-decoration: none; }
@media (max-width: 700px) {
  .research-footer { align-items: flex-start; flex-wrap: wrap; }
  .research-footer a { width: 100%; margin-left: 0; }
}

/* Edge-to-edge media on the smallest mobile layout. */
@media (max-width: 430px) {
  .page--portfolio .about-content > .portfolio-media,
  .page--portfolio .about-content > .case-study-tabs__viewport,
  .page--extra .about-content > .portfolio-media {
    width: calc(100% + 36px);
    max-width: none;
    margin-left: -18px;
    margin-right: -18px;
  }
  .page--extra .portfolio-carousel {
    --carousel-slide-active-width: 100%;
    --carousel-height: calc(100vw * 1809 / 2560);
    --carousel-constrained-scale: 1;
  }
  .page--portfolio .portfolio-carousel,
  .page--extra .portfolio-carousel { --carousel-radius: 0px; }
  .page--portfolio .portfolio-carousel__slide,
  .page--extra .portfolio-carousel__slide,
  .page--portfolio .portfolio-video,
  .page--extra .portfolio-video,
  .page--portfolio .portfolio-video__poster,
  .page--extra .portfolio-video__poster,
  .page--portfolio .case-study-tabs__viewport,
  .page--portfolio .portfolio-media img,
  .page--extra .portfolio-media img { border-radius: 0; }
}

html.prototype-modal-open { overflow: hidden; }
.prototype-modal {
  position: fixed; padding: 44px 0 0; border: 0; border-radius: 14px;
  width: min(460px, calc(100vw - 32px)); height: min(880px, calc(100dvh - 40px));
  max-width: none; max-height: none; background: #fff; box-shadow: 0 24px 90px #0008;
}
.prototype-modal::backdrop { background: #080b10c9; backdrop-filter: blur(6px); }
.prototype-modal iframe { display: block; width: 100%; height: 100%; border: 0; }
.prototype-modal__close { position: absolute; right: 8px; top: 2px; border: 0; background: transparent; color: #111; font-size: 32px; cursor: pointer; width: 40px; height: 40px; }

/* Fit the prototype's native 393 × 690 frame without spare modal height. */
.prototype-modal {
  inset: auto;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  width: min(393px, calc(100vw - 32px), calc((100dvh - 84px) * .569565));
  height: fit-content;
}
.prototype-modal__viewport { position: relative; width: 100%; aspect-ratio: 393 / 690; overflow: hidden; }
.prototype-modal .prototype-modal__viewport iframe {
  position: absolute; inset: 0; width: 393px; height: 690px;
  transform-origin: top left;
}