.topbar-about-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid #d8ddd7;
  border-radius: 999px;
  background: rgba(255, 253, 248, .72);
  color: var(--forest);
  font-family: inherit;
  font-size: var(--type-meta);
  text-decoration: none;
  cursor: pointer;
  transition: 160ms ease;
}

.topbar-about-link:hover {
  border-color: #bfc8c1;
  background: var(--card);
  transform: translateY(-1px);
}

.topbar-about-link.active {
  border-color: var(--forest);
  background: var(--forest);
  color: white;
}

.topbar-about-link strong { font-weight: 750; }

.about-link-icon {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

.app-about-page {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding-bottom: 36px;
}

.app-about-video-stage {
  display: grid;
  place-items: center;
  width: 100%;
  padding: 10px 0 clamp(56px, 7vw, 96px);
}

.app-about-video-shell {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(24, 61, 50, .15);
  border-radius: clamp(18px, 2.1vw, 30px);
  background: #e4c98e;
  box-shadow:
    0 1px 1px rgba(24, 61, 50, .05),
    0 24px 72px rgba(51, 55, 36, .13);
}

.app-about-video {
  display: block;
  width: 100%;
  height: 100%;
  background: #e4c98e;
  cursor: pointer;
  object-fit: cover;
}

.app-about-video-controls {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  min-height: 92px;
  padding: 28px clamp(18px, 2.2vw, 34px) 18px;
  background: linear-gradient(to top, rgba(13, 28, 23, .72), rgba(13, 28, 23, 0));
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity .22s ease, transform .22s ease;
}

.app-about-video-shell.is-seeking .app-about-video-controls,
.app-about-video-shell.is-active .app-about-video-controls,
.app-about-video-shell.is-keyboard-active:focus-within .app-about-video-controls {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.app-about-play-button {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 50%;
  background: rgba(16, 38, 30, .58);
  color: #fff;
  cursor: pointer;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: background-color .2s ease, transform .2s ease;
}

.app-about-play-button:hover {
  background: rgba(16, 38, 30, .84);
  transform: scale(1.04);
}

.app-about-play-button:focus-visible,
.app-about-video-scrubber:focus-visible {
  outline: 3px solid rgba(239, 156, 112, .8);
  outline-offset: 3px;
}

.app-about-play-button svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.app-about-play-button .app-about-icon-play {
  display: none;
  fill: currentColor;
  stroke: none;
}

.app-about-video-shell.is-paused .app-about-icon-pause { display: none; }
.app-about-video-shell.is-paused .app-about-icon-play { display: block; }

.app-about-scrubber-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.app-about-video-scrubber {
  width: 100%;
  height: 28px;
  margin: 0;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  --played: 0%;
}

.app-about-video-scrubber::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(to right, var(--peach) var(--played), rgba(255, 255, 255, .48) var(--played));
}

.app-about-video-scrubber::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .48);
}

.app-about-video-scrubber::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: var(--peach);
}

.app-about-video-scrubber::-webkit-slider-thumb {
  width: 16px;
  height: 16px;
  margin-top: -6px;
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--peach);
  box-shadow: 0 2px 8px rgba(7, 17, 13, .25);
}

.app-about-video-scrubber::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--peach);
  box-shadow: 0 2px 8px rgba(7, 17, 13, .25);
}

.app-about-timecode {
  color: rgba(255, 255, 255, .92);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  white-space: nowrap;
}

.app-about-video-error {
  position: absolute;
  z-index: 3;
  inset: 0;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 32px;
  background: #e4c98e;
  color: var(--forest);
  font-family: var(--serif);
  font-size: clamp(20px, 2.5vw, 32px);
  text-align: center;
}

.app-about-video-error[hidden] { display: none; }

.app-about-hero { padding: 42px 0 54px; }

.app-about-hero > p,
.app-about-security-heading > p:not(.app-about-security-proof),
.app-about-contact > div > p {
  margin: 0 0 14px;
  color: var(--peach);
  font-size: var(--type-meta);
  font-weight: 850;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.app-about-hero h2 {
  margin: 0;
  color: var(--forest);
  font-family: var(--serif);
  font-size: clamp(56px, 7vw, 86px);
  font-weight: 500;
  letter-spacing: -.052em;
  line-height: .96;
}

.app-about-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.app-about-card {
  display: flex;
  min-width: 0;
  min-height: 430px;
  flex-direction: column;
  padding: clamp(25px, 2.8vw, 34px);
  border: 1px solid rgba(24, 61, 50, .14);
  border-radius: 28px;
}

.app-about-log { background: #f3dacb; }
.app-about-query { background: rgba(255, 253, 248, .88); }
.app-about-remind { background: #dfe9e1; }

.app-about-card > header {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 15px;
  align-items: start;
}

.app-about-number {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(24, 61, 50, .2);
  border-radius: 50%;
  color: var(--forest);
  font-size: var(--type-meta);
  font-weight: 800;
}

.app-about-card h3 {
  margin: -4px 0 8px;
  color: var(--forest);
  font-family: var(--serif);
  font-size: clamp(32px, 3vw, 42px);
  font-weight: 600;
  letter-spacing: -.035em;
  line-height: 1;
}

.app-about-card header p {
  max-width: 250px;
  margin: 0;
  color: #425047;
  font-size: var(--type-meta);
  line-height: 1.5;
}

.app-about-examples {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding-top: 50px;
}

.app-about-examples > p {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 11px;
  align-items: start;
  min-height: 80px;
  margin: 0;
  padding: 16px 17px;
  border: 1px solid rgba(24, 61, 50, .1);
  border-radius: 17px;
  background: rgba(255, 253, 248, .72);
  color: var(--ink);
  box-shadow: 0 9px 25px rgba(24, 61, 50, .045);
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: -.012em;
  line-height: 1.35;
}

.app-about-examples > p > span {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(239, 156, 112, .2);
  color: var(--forest);
}

.app-about-query .app-about-examples > p { background: var(--forest); color: white; }
.app-about-query .app-about-examples > p > span { background: rgba(255, 255, 255, .1); color: #f5d8c8; }
.app-about-remind .app-about-examples > p > span { background: rgba(24, 61, 50, .1); }

.app-about-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  margin-top: clamp(42px, 5vw, 62px);
  padding-top: clamp(34px, 4vw, 48px);
  border-top: 1px solid var(--line);
}

.app-about-callout > p {
  max-width: 800px;
  margin: 0;
  color: var(--forest);
  font-family: var(--serif);
  font-size: clamp(29px, 3.2vw, 44px);
  letter-spacing: -.035em;
  line-height: 1.08;
}

.app-about-callout > button {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  background: var(--forest);
  color: white;
  font: 800 var(--type-meta)/1 var(--sans);
  cursor: pointer;
}

.app-about-security {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: clamp(86px, 10vw, 132px);
  padding: clamp(66px, 7vw, 94px);
  border-radius: 38px;
  background:
    radial-gradient(circle at 8% 103%, rgba(239, 156, 112, .22), transparent 29rem),
    radial-gradient(circle at 94% -12%, rgba(245, 216, 200, .1), transparent 30rem),
    var(--forest);
  color: #f8f4eb;
}

.app-about-security::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: 64px 64px;
  content: '';
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 82%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 82%);
}

.app-about-security-inner {
  display: grid;
  grid-template-columns: minmax(280px, .78fr) minmax(0, 1.22fr);
  gap: clamp(52px, 7vw, 94px);
  align-items: center;
}

.app-about-security-mark {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 36px;
  border: 1px solid rgba(245, 216, 200, .28);
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
  color: #f5d8c8;
}

.app-about-security-mark svg {
  width: 29px;
  height: 29px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.app-about-security-heading h3 {
  max-width: 560px;
  margin: 0;
  color: #fffaf0;
  font-family: var(--serif);
  font-size: clamp(50px, 5.5vw, 76px);
  font-weight: 500;
  letter-spacing: -.052em;
  line-height: .94;
}

.app-about-security-proof {
  max-width: 460px;
  margin: 34px 0 0;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  color: rgba(248, 244, 235, .72);
  font-family: var(--serif);
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.25;
}

.app-about-security-visual {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 28px;
  background: rgba(8, 31, 23, .48);
  box-shadow: 0 28px 80px rgba(4, 17, 12, .24);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.app-about-key-stays,
.app-about-ai-boundary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  padding: 20px 22px;
}

.app-about-key-stays { border-bottom: 1px solid rgba(255, 255, 255, .11); }

.app-about-key-dot {
  width: 10px;
  height: 10px;
  border: 2px solid #f5d8c8;
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(245, 216, 200, .08);
}

.app-about-key-stays p,
.app-about-ai-boundary p { margin: 0; }

.app-about-key-stays strong,
.app-about-key-stays span,
.app-about-ai-boundary strong,
.app-about-ai-boundary p > span { display: block; }

.app-about-key-stays strong,
.app-about-ai-boundary strong {
  color: #fffaf0;
  font-size: var(--type-meta);
}

.app-about-key-stays p > span,
.app-about-ai-boundary p > span {
  margin-top: 4px;
  color: rgba(248, 244, 235, .56);
  font-size: var(--type-meta);
  line-height: 1.45;
}

.app-about-protection-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 112px minmax(0, 1fr);
  align-items: stretch;
  padding: 24px 20px;
}

.app-about-protection-flow article {
  min-width: 0;
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 19px;
  background: rgba(255, 255, 255, .045);
}

.app-about-protection-flow article:last-child {
  border-color: rgba(245, 216, 200, .2);
  background: rgba(239, 156, 112, .08);
}

.app-about-flow-label {
  display: block;
  margin-bottom: 24px;
  color: rgba(248, 244, 235, .46);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.app-about-protection-flow article > strong {
  display: block;
  color: #fffaf0;
  font-family: var(--serif);
  font-size: 27px;
  font-weight: 600;
  letter-spacing: -.025em;
}

.app-about-protection-flow article > p {
  margin: 9px 0 0;
  color: rgba(248, 244, 235, .56);
  font-size: var(--type-meta);
  line-height: 1.5;
}

.app-about-flow-arrow {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  color: #f5d8c8;
  text-align: center;
}

.app-about-flow-arrow span {
  max-width: 86px;
  color: rgba(248, 244, 235, .48);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: .06em;
  line-height: 1.4;
  text-transform: uppercase;
}

.app-about-flow-arrow i {
  font-family: var(--serif);
  font-size: 23px;
  font-style: normal;
}

.app-about-ai-boundary {
  border-top: 1px solid rgba(255, 255, 255, .11);
  background: rgba(255, 255, 255, .025);
}

.app-about-boundary-number {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(245, 216, 200, .3);
  border-radius: 50%;
  color: #f5d8c8;
  font-family: var(--serif);
  font-size: 18px;
}

.app-about-security-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: clamp(60px, 7vw, 90px) 0 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, .14);
  list-style: none;
}

.app-about-security-details li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  padding: 28px 24px 10px 0;
}

.app-about-security-details li + li {
  padding-left: 24px;
  border-left: 1px solid rgba(255, 255, 255, .14);
}

.app-about-security-details li > span {
  color: #f5d8c8;
  font-size: 11px;
  font-weight: 820;
  letter-spacing: .1em;
}

.app-about-security-details p {
  margin: 0;
  color: rgba(248, 244, 235, .62);
  font-size: var(--type-meta);
  line-height: 1.68;
}

.app-about-security-details strong {
  display: block;
  margin-bottom: 9px;
  color: #fffaf0;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.22;
}

.app-about-security-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 40px;
  padding-bottom: 5px;
  border-bottom: 1px solid rgba(245, 216, 200, .5);
  color: #f5d8c8;
  font-size: var(--type-meta);
  font-weight: 800;
  text-decoration: none;
}

.app-about-contact {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  padding: clamp(78px, 9vw, 116px) 0 40px;
}

.app-about-contact > div { max-width: 720px; }

.app-about-contact h3 {
  margin: 0;
  color: var(--forest);
  font-family: var(--serif);
  font-size: clamp(29px, 3.5vw, 46px);
  font-weight: 500;
  letter-spacing: -.035em;
  line-height: 1.08;
}

.app-about-contact > a {
  flex: 0 0 auto;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(24, 61, 50, .34);
  color: var(--forest);
  font-size: var(--type-body);
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 1050px) {
  .app-about-actions { grid-template-columns: 1fr; }

  .app-about-card {
    display: grid;
    grid-template-columns: minmax(220px, .75fr) minmax(0, 1.25fr);
    gap: 32px;
    min-height: 0;
  }

  .app-about-examples { margin-top: 0; padding-top: 0; }

  .app-about-security-inner {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .app-about-security-heading {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 24px;
    align-items: center;
  }

  .app-about-security-mark { grid-row: 1 / 4; margin: 0; }
  .app-about-security-heading > p:not(.app-about-security-proof) { margin-bottom: 9px; }
  .app-about-security-proof { grid-column: 2; }

  .app-about-security-details { grid-template-columns: 1fr; }

  .app-about-security-details li,
  .app-about-security-details li + li {
    padding: 26px 0;
    border-left: 0;
  }

  .app-about-security-details li + li { border-top: 1px solid rgba(255, 255, 255, .14); }
}

@media (max-width: 800px) {
  .topbar-actions { gap: 8px; }

  .topbar-about-link {
    width: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
  }

  .topbar-about-link strong { display: none; }
  .about-link-icon { width: 18px; height: 18px; font-size: 11px; }

  .app-about-video-stage { padding: 4px 0 54px; }
  .app-about-video-shell { border-radius: 17px; }

  .app-about-video-controls {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 10px;
    min-height: 74px;
    padding: 20px 14px 10px;
  }

  .app-about-play-button { width: 40px; height: 40px; }
  .app-about-timecode { display: none; }

  .app-about-hero { padding: 4px 0 32px; }
  .app-about-hero h2 { font-size: clamp(42px, 13vw, 56px); line-height: .98; }

  .app-about-card {
    display: flex;
    gap: 0;
    min-height: 0;
    padding: 24px 20px;
    border-radius: 23px;
  }

  .app-about-examples { margin-top: 42px; padding-top: 0; }
  .app-about-examples > p { padding: 15px 14px; }

  .app-about-callout { display: block; padding-top: 32px; }
  .app-about-callout > button { margin-top: 26px; }

  .app-about-security {
    margin: 68px -16px 0;
    padding: 58px 20px 52px;
    border-radius: 0;
  }

  .app-about-security-heading { display: block; }
  .app-about-security-mark { margin-bottom: 30px; }

  .app-about-security-heading h3 {
    font-size: clamp(48px, 14vw, 66px);
  }

  .app-about-security-proof { margin-top: 26px; }

  .app-about-protection-flow {
    grid-template-columns: 1fr;
    padding: 18px;
  }

  .app-about-flow-arrow { min-height: 90px; }
  .app-about-flow-arrow i { transform: rotate(90deg); }

  .app-about-security-details { margin-top: 56px; }

  .app-about-security-details li,
  .app-about-security-details li + li {
    grid-template-columns: 30px 1fr;
    gap: 12px;
  }

  .app-about-contact { display: block; padding: 68px 0 28px; }
  .app-about-contact > a { display: inline-block; margin-top: 30px; }
}

@media (max-width: 800px) and (orientation: portrait) {
  .app-about-video-shell {
    width: min(100%, 480px);
    aspect-ratio: 8 / 9;
  }

  .app-about-video {
    object-fit: cover;
    object-position: 50% 50%;
  }
}