/* ==========================================================================
   avianuno.com — Avian One Pro
   Loaded after site.css on /avian-one-pro/ only. Same breakpoints as site.css:
   xlarge ≥1441 · large 1069–1440 · medium 735–1068 · small ≤734 · xsmall ≤480
   ========================================================================== */

@font-face {
  font-family: "Avian One Pro Display";
  src: url("/assets/fonts/AvianOneProDisplay-VF.woff2") format("woff2-variations"),
       url("/assets/fonts/AvianOneProDisplay-VF.woff2") format("woff2");
  font-weight: 300 800;
  font-style: normal;
  font-display: swap;
}

:root[data-theme="dark"] {
  /* This page is dark only, on pure black, whatever the system appearance */
  color-scheme: dark;
  --display: "Avian One Pro Display", "Avian Pro", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;

  /* site.css tokens, fixed to their dark values */
  --bg-base: #000000;
  --bg-tint-1: #000000;
  --bg-tint-2: #000000;
  --bg-tint-3: #000000;
  --ink: #f5f5f7;
  --ink-secondary: #a1a1a6;
  --mark: #f5f5f7;
  --pill: #d2d2d7;
  --footer-ink: #f5f5f7;
  --footer-link: #a1a1a6;
  --footer-muted: #545458;
  --footer-crumb: #d2d2d7;
  --footer-chevron: #86868b;
  --footer-rule: rgba(255, 255, 255, 0.16);
  --modal-ink: #f5f5f7;
  --modal-secondary: rgba(235, 235, 245, 0.6);
  --modal-close-bg: rgba(118, 118, 128, 0.24);
  --modal-close-bg-hover: rgba(118, 118, 128, 0.32);
  --field-focus: #2997ff;
  --accent: #0071e3;
  --link: #2997ff;

  /* page tokens */
  --tile: #161617;
  --tile-ink: var(--ink);
  --hairline: rgba(255, 255, 255, 0.14);
  --control: rgba(118, 118, 128, 0.24);
  --control-hover: rgba(118, 118, 128, 0.32);
  --control-selected: #636366;
  --bar-tint: rgba(0, 0, 0, 0.66);

  /* the download menu: iOS dark material, a translucent grey over a strong blur */
  --menu-bg: rgba(37, 37, 39, 0.72);
  --menu-hover: rgba(255, 255, 255, 0.08);
  --menu-separator: rgba(84, 84, 88, 0.6);
  --menu-shadow: 0 22px 60px rgba(0, 0, 0, 0.6), 0 0 0 0.5px rgba(255, 255, 255, 0.12);
  --scrim: rgba(0, 0, 0, 0.48);

  --dg-ink: #f5f5f7;
  --dg-faded: rgba(245, 245, 247, 0.16);
  --dg-grid: rgba(255, 255, 255, 0.08);
  --dg-blue: #2997ff;
  --dg-accent: #ff4f78;
  --dg-teal: #40c8e0;
  --dg-muted: #98989d;
  --dg-soft: #232326;
}
html { background: #000; }

/* Pinned header ------------------------------------------------------------ */
/* The header keeps the home page's exact position at the top. Once the page scrolls it rides up to a
   compact offset (transform only, so nothing below reflows) and a progressive blur fades in behind it. */
:root { --pin-lift: 31px; }

html { scroll-padding-top: 120px; }

.pinned-header {
  position: sticky;
  top: 0;
  z-index: 50;
  pointer-events: none;
}
.pinned-header .site-header {
  position: relative;
  transition: transform 0.45s cubic-bezier(0.32, 0.72, 0, 1);
}
.pinned-header .site-header > * { pointer-events: auto; }
.aop-page.is-scrolled .pinned-header .site-header { transform: translateY(calc(var(--pin-lift) * -1)); }
/* a transformed header would trap the fixed iPhone sheet inside it, so the header settles while the sheet is open */
.aop-page.modal-open .pinned-header .site-header { transform: none; }

.pinned-blur {
  position: absolute;
  inset: 0 0 auto;
  height: calc(100% - var(--pin-lift) + 30px);
  opacity: 0;
  transition: opacity 0.35s ease;
}
.aop-page.is-scrolled .pinned-blur { opacity: 1; }
.pinned-blur::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bar-tint) 0%, var(--bar-tint) 52%, transparent 100%);
}
.pinned-blur i {
  position: absolute;
  inset: 0;
}
.pinned-blur i:nth-child(1) { -webkit-backdrop-filter: blur(1.5px); backdrop-filter: blur(1.5px); -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%); mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%); }
.pinned-blur i:nth-child(2) { -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 56%, transparent 86%); mask-image: linear-gradient(180deg, #000 0%, #000 56%, transparent 86%); }
.pinned-blur i:nth-child(3) { -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px); -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 40%, transparent 72%); mask-image: linear-gradient(180deg, #000 0%, #000 40%, transparent 72%); }
.pinned-blur i:nth-child(4) { -webkit-backdrop-filter: saturate(160%) blur(18px); backdrop-filter: saturate(160%) blur(18px); -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 30%, transparent 60%); mask-image: linear-gradient(180deg, #000 0%, #000 30%, transparent 60%); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Download button and menu ------------------------------------------------ */
.download { position: relative; }

.download-button,
.aop-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 0;
  border: 0;
  border-radius: 980px;
  background: var(--accent);
  color: #fff;
  font-family: var(--font);
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
}
.download-button { height: 34px; padding: 0 14px 0 17px; font-size: 15px; letter-spacing: -0.0153em; }
.download-button:hover, .aop-button:hover { background: #0077ed; }
.download-button:active, .aop-button:active { transform: scale(0.97); }
.download-chevron { width: 10px; height: 6px; stroke: currentColor; transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1); }
.download-button[aria-expanded="true"] .download-chevron { transform: rotate(180deg); }

.download-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 372px;
  max-height: calc(100vh - 120px);
  max-height: calc(100dvh - 120px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 8px;
  border-radius: 20px;
  background: var(--menu-bg);
  -webkit-backdrop-filter: saturate(180%) blur(40px);
          backdrop-filter: saturate(180%) blur(40px);
  box-shadow: var(--menu-shadow);
  color: var(--modal-ink);
  text-align: left;
  transform-origin: top right;
}
.download-menu:not([hidden]) { display: block; animation: menu-in 0.32s cubic-bezier(0.32, 0.72, 0, 1) both; }
.download-menu.is-closing { animation: menu-out 0.18s ease both; }
@keyframes menu-in { from { opacity: 0; transform: translateY(-6px) scale(0.96); } }
@keyframes menu-out { to { opacity: 0; transform: translateY(-4px) scale(0.98); } }

.download-menu-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 12px 12px;
}
.download-menu-title { font-family: var(--display); font-size: 17px; font-weight: 700; letter-spacing: 0; }
.download-menu-stage { margin-left: 4px; font-family: var(--font); font-size: 13px; font-weight: 400; letter-spacing: -0.0062em; color: var(--modal-secondary); }
.download-menu-close { display: none; }

.download-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 9px 12px;
  border-radius: 12px;
  color: inherit;
}
.download-item:hover, .download-item:focus-visible { background: var(--menu-hover); text-decoration: none; }
.download-item:focus-visible { outline-offset: -2px; }
.download-icon { flex: none; width: 28px; height: 28px; stroke: var(--link); color: var(--link); }
.download-item-text { display: flex; flex-direction: column; min-width: 0; }
.download-item-title { font-size: 17px; line-height: 1.235; font-weight: 600; letter-spacing: -0.0253em; }
.download-item-detail { font-size: 13px; line-height: 1.385; color: var(--modal-secondary); letter-spacing: -0.0062em; }

.download-section-label {
  margin: 10px 12px 4px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
  line-height: 1.33;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--modal-secondary);
}
.download-weights { margin: 0; padding: 0; list-style: none; }
.download-weights li {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 12px;
}
.download-weight-name { font-family: var(--display); font-size: 17px; letter-spacing: 0; }
.download-weight-num { font-size: 13px; color: var(--modal-secondary); font-variant-numeric: tabular-nums; letter-spacing: -0.0062em; }
.download-formats { display: flex; gap: 6px; }
.download-formats a {
  display: grid;
  place-items: center;
  min-width: 52px;
  height: 32px;
  padding: 0 10px;
  border-radius: 980px;
  background: var(--control);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.0062em;
  color: var(--modal-ink);
  transition: background-color 0.2s ease;
}
.download-formats a:hover { background: var(--control-hover); text-decoration: none; }
.download-fineprint { margin: 6px 12px 8px; padding-top: 12px; border-top: 1px solid var(--hairline); font-size: 12px; line-height: 1.33; color: var(--modal-secondary); letter-spacing: 0; }

.download-scrim { display: none; }

/* Sections ----------------------------------------------------------------- */
.aop-page main { display: block; padding-bottom: 40px; }

.aop-hero { padding-top: 104px; text-align: center; overflow: hidden; }
.aop-hero-eyebrow {
  margin: 0 0 14px;
  font-size: 24px;
  line-height: 1.16667;
  font-weight: 600;
  letter-spacing: 0.0029em;
  color: var(--ink-secondary);
}
.aop-hero-title {
  margin: 0;
  font-family: var(--display);
  font-size: 112px;
  line-height: 1.04;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--ink);
}
.aop-hero-subhead {
  max-width: 820px;
  margin: 28px auto 0;
  font-size: 28px;
  line-height: 1.28577;
  font-weight: 420;
  letter-spacing: 0.0136em;
  color: var(--ink-secondary);
  text-wrap: balance;
}
.aop-hero-meta { margin: 22px 0 0; font-size: 17px; color: var(--ink-secondary); letter-spacing: -0.0253em; }
.aop-hero-meta span { white-space: nowrap; }
.aop-hero-meta i { margin: 0 6px; font-style: normal; }

.aop-hero-specimen {
  margin-top: 72px;
  font-family: var(--display);
  font-size: min(300px, 20.5vw);
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0;
  white-space: nowrap;
  color: var(--ink);
  user-select: none;
  padding-bottom: 0.1em;   /* the j's hook reaches 0.219em below the baseline; the line box stops at 0.15em */
}
.aop-hero-specimen span { display: inline-block; animation: weight-sweep 2.4s cubic-bezier(0.45, 0, 0.2, 1) 0.3s both; }
@keyframes weight-sweep {
  0% { font-weight: 300; }
  55% { font-weight: 800; }
  100% { font-weight: 700; }
}

.aop-stats { padding: 88px 0 0; }
.aop-stats-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 0;
  padding: 40px 0 0;
  border-top: 1px solid var(--hairline);
  list-style: none;
}
.aop-stats-list li { display: flex; flex-direction: column; gap: 10px; }
.aop-stat-value { font-family: var(--display); font-size: 56px; line-height: 1.07; font-weight: 700; letter-spacing: 0; color: var(--ink); }
.aop-stat-label { max-width: 230px; font-size: 17px; line-height: 1.41; color: var(--ink-secondary); letter-spacing: -0.0253em; }

.aop-section { padding-top: 140px; }
.aop-eyebrow {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.19;
  font-weight: 600;
  letter-spacing: -0.0171em;
  color: var(--ink-secondary);
}
.aop-headline {
  margin: 0;
  font-family: var(--display);
  font-size: 56px;
  line-height: 1.07143;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--ink);
  text-wrap: balance;
}
.aop-subhead {
  margin: 0;
  font-family: var(--display);
  font-size: 24px;
  line-height: 1.17;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--ink);
}
.aop-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 48px;
  margin-top: 36px;
}
.aop-intro p, .aop-dots-copy p, .aop-ladder-copy p {
  margin: 0;
  font-size: 21px;
  line-height: 1.381;
  font-weight: 400;
  letter-spacing: -0.0171em;
  color: var(--ink-secondary);
}
.aop-intro.is-single { grid-template-columns: minmax(0, 820px); }
.aop-intro strong, .aop-dots-copy strong, .aop-ladder-copy strong { color: var(--ink); font-weight: 600; }
.aop-intro sup { font-size: 0.62em; line-height: 0; }

.aop-tile {
  border-radius: 28px;
  background: var(--tile);
}

.aop-figure { margin: 56px 0 0; padding: 56px 56px 36px; }
.aop-figure figcaption {
  margin-top: 28px;
  font-size: 14px;
  line-height: 1.43;
  color: var(--dg-muted);
  text-align: center;
  letter-spacing: -0.0107em;
}

.aop-callouts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin: 48px 0 0;
  padding: 0;
  list-style: none;
}
.aop-callouts li { display: flex; flex-direction: column; }
.aop-callout-value { font-family: var(--display); font-size: 40px; line-height: 1.1; font-weight: 700; letter-spacing: 0; color: var(--ink); }
.aop-callout-title { margin-top: 12px; font-size: 17px; line-height: 1.235; font-weight: 600; color: var(--ink); letter-spacing: -0.0253em; }
.aop-callout-copy { margin-top: 4px; font-size: 17px; line-height: 1.47; color: var(--ink-secondary); letter-spacing: -0.0253em; }

/* Diagrams ---------------------------------------------------------------- */
.dg { display: block; width: 100%; height: auto; overflow: hidden; }
.dg-narrow { display: none; }
.dg text { font-family: var(--font); font-weight: 600; letter-spacing: 0; /* tracking: fixed — sizes are in diagram units */ }
.dg line, .dg polyline, .dg polygon, .dg rect, .dg ellipse, .dg circle, .dg .dg-accent-line, .dg .dg-sharp,
.dg .dg-stroke-ink, .dg .dg-stroke-spiral, .dg .dg-stroke-arc { vector-effect: non-scaling-stroke; }
.dg-ink { fill: var(--dg-ink); }
.dg-faded path { fill: var(--dg-faded); }
.dg-grid { stroke: var(--dg-grid); stroke-width: 1px; }
.dg-row { stroke: var(--dg-blue); stroke-width: 1.25px; }
.dg-band { stroke: var(--dg-accent); stroke-width: 1.25px; stroke-dasharray: 6 5; }
.dg-accent-line { stroke: var(--dg-accent); stroke-width: 1.5px; fill: none; }
.dg-sharp { fill: none; stroke: var(--dg-blue); stroke-width: 1.25px; stroke-dasharray: 6 5; }
.dg-ellipse { fill: none; stroke: var(--dg-blue); stroke-width: 1.5px; stroke-dasharray: 6 5; }
.dg-circle { fill: none; stroke: var(--dg-blue); stroke-width: 1.25px; stroke-dasharray: 5 4; }
.dg-radius { stroke: var(--dg-blue); stroke-width: 1.25px; }
.dg-guide { stroke: var(--dg-muted); stroke-width: 1px; stroke-dasharray: 4 4; fill: none; }
.dg-axis { stroke: var(--dg-muted); stroke-width: 1px; opacity: 0.6; }
.dg-fill-soft { fill: var(--dg-soft); }
.dg-stroke-ink { stroke: var(--dg-ink); stroke-width: 3px; fill: none; stroke-linecap: round; }
.dg-stroke-spiral { stroke: var(--dg-teal); stroke-width: 4px; fill: none; stroke-linecap: round; }
.dg-stroke-arc { stroke: var(--dg-blue); stroke-width: 4px; fill: none; stroke-linecap: round; }
.dg-curv { stroke: var(--dg-teal); stroke-width: 3px; fill: none; stroke-linejoin: round; stroke-linecap: round; }
.dg-step { stroke: var(--dg-muted); stroke-width: 1.5px; fill: none; stroke-dasharray: 5 4; }
.dg-dot-blue { fill: var(--dg-blue); }
.dg-dot-accent { fill: var(--dg-accent); }
.dg-dot-muted { fill: var(--dg-muted); }
.dg-label { fill: var(--dg-ink); }
.dg-label-blue { fill: var(--dg-blue); }
.dg-label-accent { fill: var(--dg-accent); }
.dg-label-muted { fill: var(--dg-muted); }
.dg-eyebrow { fill: var(--dg-muted); }
.dg-halo { stroke: var(--tile); stroke-linejoin: round; paint-order: stroke fill; }

/* Type tester ------------------------------------------------------------- */
.aop-tester { margin-top: 48px; padding: 48px 56px 40px; }
.aop-tester-text {
  --wght: 400;
  --size: 96px;
  min-height: 1.2em;
  margin: 0;
  font-family: var(--display);
  font-size: var(--size);
  line-height: 1.12;
  font-weight: var(--wght);
  letter-spacing: 0;
  color: var(--ink);
  overflow-wrap: anywhere;
  outline: none;
  caret-color: var(--accent);
}
.aop-tester-text.is-round, .is-round { font-feature-settings: "ss01" 1; }
.aop-tester-controls {
  display: grid;
  grid-template-columns: auto 1fr 1fr auto;
  align-items: center;
  gap: 20px 32px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
}

.aop-control-weights {
  display: inline-flex;
  padding: 2px;
  border-radius: 9px;
  background: var(--control);
}
.aop-control-weights button {
  min-height: 32px;
  padding: 0 12px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  letter-spacing: -0.0107em;
}
.aop-control-weights button[aria-checked="true"] {
  background: var(--control-selected);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 0 0 0.5px rgba(0, 0, 0, 0.06);
}

.aop-slider { display: flex; flex-direction: column; gap: 6px; }
.aop-control-label { font-size: 14px; line-height: 1.3; font-weight: 500; color: var(--ink-secondary); font-variant-numeric: tabular-nums; letter-spacing: -0.0107em; }
.aop-control-label output { color: var(--ink); }
.aop-slider input[type="range"] {
  --fill: 20%;
  width: 100%;
  height: 28px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
.aop-slider input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent) var(--fill), var(--control-hover) var(--fill));
}
.aop-slider input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--control-hover); }
.aop-slider input[type="range"]::-moz-range-progress { height: 4px; border-radius: 2px; background: var(--accent); }
.aop-slider input[type="range"]::-webkit-slider-thumb {
  width: 22px;
  height: 22px;
  margin-top: -9px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 0 0.5px rgba(0, 0, 0, 0.08);
  -webkit-appearance: none;
  appearance: none;
}
.aop-slider input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
.aop-slider input[type="range"]:focus-visible { outline: none; }
.aop-slider input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 3px var(--field-focus); }

.aop-switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; position: relative; }
.aop-switch input { position: absolute; opacity: 0; width: 51px; height: 31px; margin: 0; cursor: pointer; }
.aop-switch-track {
  position: relative;
  flex: none;
  width: 51px;
  height: 31px;
  border-radius: 31px;
  background: var(--control-hover);
  transition: background-color 0.25s ease;
}
.aop-switch-track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15), 0 1px 1px rgba(0, 0, 0, 0.16);
  transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1);
}
.aop-switch input:checked + .aop-switch-track { background: #34c759; }
.aop-switch input:checked + .aop-switch-track::after { transform: translateX(20px); }
.aop-switch input:focus-visible + .aop-switch-track { outline: 2px solid var(--field-focus); outline-offset: 3px; }
.aop-switch .aop-control-label { font-size: 15px; color: var(--ink); letter-spacing: -0.0153em; }

/* Dots -------------------------------------------------------------------- */
.aop-dots {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 40px;
  margin-top: 24px;
  padding: 48px 56px;
}
.aop-dots-copy p { margin-top: 12px; font-size: 19px; line-height: 1.42; letter-spacing: -0.0237em; }
.aop-dots-pair { display: flex; gap: 56px; }
.aop-dots-pair figure { margin: 0; text-align: center; }
.aop-dots-glyphs { display: block; font-family: var(--display); font-size: 120px; line-height: 1; font-weight: 700; color: var(--ink); }
.aop-dots-pair figcaption { margin-top: 12px; font-size: 14px; color: var(--dg-muted); letter-spacing: -0.0107em; }

/* Corner table and ladder ------------------------------------------------- */
.aop-table-wrap { margin-top: 48px; overflow-x: auto; }
.aop-table { width: 100%; border-collapse: collapse; font-size: 17px; line-height: 1.35; letter-spacing: -0.0253em; }
.aop-table th, .aop-table td { padding: 14px 16px 14px 0; border-bottom: 1px solid var(--hairline); text-align: left; vertical-align: middle; color: var(--ink-secondary); }
.aop-table thead th { padding-top: 0; font-size: 12px; font-weight: 600; letter-spacing: 0; text-transform: uppercase; color: var(--dg-muted); }
.aop-table tbody th { color: var(--ink); font-weight: 600; white-space: nowrap; }
.aop-table tbody th > * { vertical-align: middle; }
.aop-table .num { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.corner-icon { display: inline-block; width: 32px; height: 32px; margin-right: 14px; fill: var(--dg-ink); }

.aop-ladder {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
  align-items: center;
  margin-top: 64px;
}
.aop-ladder-copy p { margin-top: 12px; font-size: 19px; line-height: 1.42; letter-spacing: -0.0237em; }
.aop-ladder-bars { margin: 0; padding: 0; list-style: none; }
.aop-ladder-bars li {
  display: grid;
  grid-template-columns: 34px 92px 1fr auto;
  grid-template-areas: "rung delta bar num" ". what what what";
  align-items: center;
  gap: 2px 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--hairline);
}
.aop-ladder-rung { grid-area: rung; font-size: 15px; font-weight: 700; color: var(--tier); letter-spacing: -0.0153em; }
.aop-ladder-delta { grid-area: delta; font-size: 15px; font-weight: 600; color: var(--ink); white-space: nowrap; letter-spacing: -0.0153em; }
.aop-ladder-bar { grid-area: bar; height: 10px; width: calc(var(--depth) * 100%); border-radius: 5px; background: var(--tier); }
.aop-ladder-num { grid-area: num; font-size: 15px; color: var(--ink-secondary); font-variant-numeric: tabular-nums; letter-spacing: -0.0153em; }
.aop-ladder-what { grid-area: what; font-size: 14px; color: var(--dg-muted); letter-spacing: -0.0107em; }

/* Bowls -------------------------------------------------------------------- */
.aop-split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.aop-split .aop-intro { grid-template-columns: 1fr; gap: 20px; }
.aop-bowl-figure { margin: 0; padding: 48px; }
.aop-legend { display: flex; flex-wrap: wrap; gap: 10px 24px; margin: 28px 0 0; padding: 0; list-style: none; font-size: 15px; color: var(--ink-secondary); letter-spacing: -0.0153em; }
.aop-legend li { display: flex; align-items: center; gap: 8px; }
.aop-legend-dot { width: 10px; height: 10px; border-radius: 50%; }
.aop-legend-dot.is-blue { background: var(--dg-blue); }
.aop-legend-dot.is-accent { background: var(--dg-accent); }
.aop-legend-dot.is-muted { background: var(--dg-muted); }

/* Weights ------------------------------------------------------------------ */
.aop-weights { margin: 48px 0 0; padding: 0; list-style: none; }
.aop-weight {
  display: grid;
  grid-template-columns: 150px 1fr 220px 80px;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline);
}
.aop-weight:first-child { border-top: 1px solid var(--hairline); }
.aop-weight-meta { display: flex; flex-direction: column; }
.aop-weight-name { font-family: var(--display); font-size: 21px; line-height: 1.19; letter-spacing: 0; color: var(--ink); }
.aop-weight-num { font-size: 14px; color: var(--ink-secondary); font-variant-numeric: tabular-nums; letter-spacing: -0.0107em; }
.aop-weight-sample { font-family: var(--display); font-size: 72px; line-height: 1.1; letter-spacing: 0; color: var(--ink); }
.aop-weight-stem { display: flex; align-items: center; gap: 14px; }
.aop-weight-bar { flex: none; width: calc(var(--stem) * 44px); height: 64px; border-radius: 4px; background: var(--ink); }
.aop-weight-units { font-size: 14px; color: var(--ink-secondary); font-variant-numeric: tabular-nums; white-space: nowrap; letter-spacing: -0.0107em; }
.aop-weight-step { justify-self: end; padding: 4px 10px; border-radius: 980px; background: var(--control); font-size: 13px; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: -0.0062em; }
.aop-weight-step.is-empty { visibility: hidden; }

/* Characters --------------------------------------------------------------- */
.aop-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.aop-glyphs {
  display: grid;
  grid-template-columns: repeat(13, 1fr);
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  border-radius: 28px;
  background: var(--tile);
  overflow: hidden;
}
.aop-glyphs li {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  font-family: var(--display);
  font-size: 40px;
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
  box-shadow: inset -0.5px -0.5px 0 var(--hairline);
  transition: font-weight 0.25s ease, background-color 0.2s ease;
}
.aop-glyphs li:hover { font-weight: 700; background: var(--control); }
.aop-glyphs.is-round { font-feature-settings: "ss01" 1; }

/* Specifications ----------------------------------------------------------- */
.aop-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 48px;
  margin: 40px 0 0;
}
.aop-specs div { display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--hairline); }
.aop-specs dt { font-size: 15px; font-weight: 600; color: var(--ink); letter-spacing: -0.0153em; }
.aop-specs dd { margin: 0; font-size: 15px; line-height: 1.47; color: var(--ink-secondary); letter-spacing: -0.0153em; }

/* Call to action ------------------------------------------------------------ */
.aop-cta { padding-top: 160px; padding-bottom: 120px; text-align: center; }
.aop-cta-title { margin: 0; font-family: var(--display); font-size: 64px; line-height: 1.0625; font-weight: 700; letter-spacing: 0; color: var(--ink); }
.aop-cta-meta { margin: 16px 0 0; font-size: 19px; color: var(--ink-secondary); letter-spacing: -0.0237em; }
.aop-cta-meta span { white-space: nowrap; }
.aop-cta-meta i { margin: 0 6px; font-style: normal; }
.aop-button { margin-top: 32px; min-width: 160px; height: 50px; padding: 0 28px; font-size: 17px; letter-spacing: -0.0253em; }

/* xlarge -------------------------------------------------------------------- */
@media only screen and (min-width: 1441px) {
  :root { --pin-lift: 37px; }
  html { scroll-padding-top: 130px; }
  .download-button { height: 38px; padding: 0 16px 0 19px; font-size: 17px; letter-spacing: -0.0253em; }
  .header-actions { gap: 26px; }
  .aop-hero { padding-top: 120px; }
  .aop-hero-eyebrow { font-size: 28px; letter-spacing: 0.0136em; }
  .aop-hero-title { font-size: 136px; }
  .aop-hero-subhead { max-width: 980px; font-size: 34px; line-height: 1.26471; letter-spacing: 0.0118em; }
  .aop-hero-meta { font-size: 19px; letter-spacing: -0.0237em; }
  .aop-hero-specimen { font-size: min(360px, 20.5vw); }
  .aop-stat-value { font-size: 64px; }
  .aop-stat-label { font-size: 19px; letter-spacing: -0.0237em; }
  .aop-section { padding-top: 168px; }
  .aop-eyebrow { font-size: 24px; letter-spacing: 0.0029em; }
  .aop-headline { font-size: 72px; line-height: 1.05; }
  .aop-intro p { font-size: 24px; line-height: 1.33; letter-spacing: 0.0029em; }
  .aop-figure { padding: 72px 80px 40px; }
  .aop-callout-value { font-size: 48px; }
  .aop-callout-copy, .aop-callout-title { font-size: 19px; letter-spacing: -0.0237em; }
  .aop-weight-sample { font-size: 88px; }
  .aop-glyphs li { font-size: 48px; }
  .aop-cta-title { font-size: 80px; }
}

/* medium -------------------------------------------------------------------- */
@media only screen and (max-width: 1068px) {
  :root { --pin-lift: 22px; }
  html { scroll-padding-top: 100px; }
  .download-button { height: 32px; padding: 0 13px 0 15px; font-size: 14px; letter-spacing: -0.0107em; }
  .header-actions { gap: 16px; }
  .aop-hero { padding-top: 84px; }
  .aop-hero-eyebrow { font-size: 21px; letter-spacing: -0.0171em; }
  .aop-hero-title { font-size: 80px; }
  .aop-hero-subhead { max-width: 692px; font-size: 24px; line-height: 1.16667; letter-spacing: 0.0029em; }
  .aop-hero-specimen { margin-top: 56px; font-size: min(210px, 20.5vw); }
  .aop-stats { padding-top: 72px; }
  .aop-stats-list { grid-template-columns: repeat(2, 1fr); gap: 36px 24px; }
  .aop-stat-value { font-size: 48px; }
  .aop-section { padding-top: 112px; }
  .aop-eyebrow { font-size: 19px; letter-spacing: -0.0237em; }
  .aop-headline { font-size: 48px; line-height: 1.08349; }
  .aop-intro { grid-template-columns: 1fr; gap: 20px; margin-top: 28px; }
  .aop-intro p { font-size: 19px; line-height: 1.4211; letter-spacing: -0.0237em; }
  .aop-tile { border-radius: 24px; }
  .aop-figure { margin-top: 40px; padding: 40px 32px 28px; }
  .aop-callouts { gap: 24px; margin-top: 36px; }
  .aop-callout-value { font-size: 32px; }
  .aop-callout-copy { font-size: 15px; letter-spacing: -0.0153em; }
  .aop-tester { padding: 36px 32px 32px; }
  .aop-tester-controls { grid-template-columns: 1fr 1fr; }
  .aop-control-weights { grid-column: 1 / -1; justify-self: start; }
  .aop-dots { grid-template-columns: 1fr; gap: 28px; padding: 36px 32px; }
  .aop-dots-pair { justify-content: center; }
  .aop-ladder { grid-template-columns: 1fr; gap: 24px; margin-top: 48px; }
  .aop-split { grid-template-columns: 1fr; gap: 40px; }
  .aop-bowl-figure { max-width: 520px; width: 100%; justify-self: center; }
  .aop-weight { grid-template-columns: 110px 1fr 150px 64px; gap: 16px; }
  .aop-weight-sample { font-size: 56px; }
  .aop-weight-bar { width: calc(var(--stem) * 36px); height: 52px; }
  .aop-glyphs { grid-template-columns: repeat(9, 1fr); border-radius: 24px; }
  .aop-glyphs li { font-size: 36px; }
  .aop-specs { grid-template-columns: 1fr; }
  .aop-cta-title { font-size: 48px; }
}

/* small --------------------------------------------------------------------- */
@media only screen and (max-width: 734px) {
  :root { --pin-lift: max(4px, min(14px, 1.7svh)); }
  html { scroll-padding-top: 76px; }
  .aop-page .viewport-content { max-width: 366px; width: 87.5%; }
  .download-button { height: 30px; padding: 0 11px 0 13px; font-size: 13px; gap: 5px; letter-spacing: -0.0062em; }
  .download-chevron { width: 9px; }
  .header-actions { gap: 14px; }

  .download-scrim:not([hidden]) {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 60;
    pointer-events: auto;
    background: var(--scrim);
    animation: fade-in 0.3s ease both;
  }
  .download-scrim.is-closing { animation: fade-out 0.24s ease both; }
  .download-menu {
    position: fixed;
    top: auto;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    width: auto;
    max-height: 88svh;
    padding: 8px 8px calc(12px + env(safe-area-inset-bottom));
    border-radius: 24px 24px 0 0;
    pointer-events: auto;
  }
  .download-menu:not([hidden]) { animation: sheet-up 0.42s cubic-bezier(0.32, 0.72, 0, 1) both; }
  .download-menu.is-closing { animation: sheet-down 0.26s ease both; }
  .download-menu-head { align-items: center; padding: 14px 12px 14px 16px; }
  .download-menu-close {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    margin-left: auto;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: var(--modal-close-bg);
    color: var(--modal-secondary);
    cursor: pointer;
  }
  .download-menu-close svg { width: 11px; height: 11px; stroke: currentColor; }

  .aop-hero { padding-top: max(40px, min(64px, 7svh)); }
  .aop-hero-eyebrow { margin-bottom: 8px; font-size: 17px; letter-spacing: -0.0253em; }
  .aop-hero-title { font-size: min(44px, 10.4vw); }
  .aop-hero-subhead { margin-top: 16px; font-size: 19px; line-height: 1.32; letter-spacing: -0.0237em; }
  .aop-hero-meta { margin-top: 14px; font-size: 14px; letter-spacing: -0.0107em; }
  .aop-hero-meta i { margin: 0 3px; }
  .aop-hero-specimen { margin-top: 40px; font-size: 20.5vw; }

  .aop-stats { padding-top: 48px; }
  .aop-stats-list { gap: 28px 20px; padding-top: 28px; }
  .aop-stat-value { font-size: 36px; }
  .aop-stat-label { font-size: 15px; line-height: 1.4; letter-spacing: -0.0153em; }

  .aop-section { padding-top: 88px; }
  .aop-eyebrow { font-size: 17px; margin-bottom: 6px; letter-spacing: -0.0253em; }
  .aop-headline { font-size: 32px; line-height: 1.125; }
  .aop-subhead { font-size: 21px; }
  .aop-intro { margin-top: 20px; gap: 16px; }
  .aop-intro p, .aop-dots-copy p, .aop-ladder-copy p { font-size: 17px; line-height: 1.47; letter-spacing: -0.0253em; }
  .aop-tile { border-radius: 18px; }
  .aop-figure { margin-top: 32px; padding: 24px 16px 18px; }
  .aop-figure figcaption { margin-top: 18px; font-size: 12px; letter-spacing: 0; }
  .dg-wide { display: none; }
  .dg-narrow { display: block; }
  .aop-callouts { grid-template-columns: 1fr; gap: 28px; margin-top: 32px; }
  .aop-callout-value { font-size: 32px; }
  .aop-callout-title { margin-top: 8px; font-size: 15px; letter-spacing: -0.0153em; }
  .aop-callout-copy { font-size: 15px; line-height: 1.4; letter-spacing: -0.0153em; }

  .aop-tester { margin-top: 28px; padding: 24px 20px 20px; }
  .aop-tester-controls { grid-template-columns: 1fr; gap: 18px; margin-top: 24px; padding-top: 20px; }
  .aop-control-weights { width: 100%; }
  .aop-control-weights button { flex: 1; padding: 0 4px; font-size: 13px; letter-spacing: -0.0062em; }

  .aop-dots { padding: 24px 20px 28px; gap: 24px; }
  .aop-dots-copy p { font-size: 17px; letter-spacing: -0.0253em; }
  .aop-dots-glyphs { font-size: 88px; }
  .aop-dots-pair { gap: 40px; }

  .aop-table-wrap { margin-top: 32px; margin-inline: -4px; }
  .aop-table { font-size: 14px; letter-spacing: -0.0107em; }
  .aop-table thead { display: none; }
  .aop-table, .aop-table tbody, .aop-table tr, .aop-table th, .aop-table td { display: block; }
  .aop-table tr {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas: "name num" "ang ang" "mark mark" "word word";
    padding: 14px 4px;
    border-bottom: 1px solid var(--hairline);
  }
  .aop-table th, .aop-table td { padding: 0; border: 0; }
  .aop-table tbody th { grid-area: name; display: flex; align-items: center; font-size: 15px; letter-spacing: -0.0153em; }
  .aop-table td:nth-child(2) { display: none; }
  .aop-table td.num { grid-area: num; align-self: center; font-size: 15px; letter-spacing: -0.0153em; }
  .aop-table td:nth-child(4) { grid-area: mark; margin-top: 6px; padding-left: 40px; }
  .aop-table td:nth-child(5) { grid-area: word; padding-left: 40px; }
  .aop-table td:nth-child(4)::before { content: "Mark · "; color: var(--dg-muted); }
  .aop-table td:nth-child(5)::before { content: "Wordmark · "; color: var(--dg-muted); }
  .corner-icon { width: 28px; height: 28px; margin-right: 12px; }
  .aop-ladder { margin-top: 40px; }
  .aop-ladder-copy p { font-size: 17px; letter-spacing: -0.0253em; }
  .aop-ladder-bars li { grid-template-columns: 28px 78px 1fr auto; gap: 2px 8px; }
  .aop-ladder-delta, .aop-ladder-num, .aop-ladder-rung { font-size: 14px; letter-spacing: -0.0107em; }

  .aop-split { gap: 28px; }
  .aop-bowl-figure { padding: 24px; }
  .aop-legend { flex-direction: column; gap: 8px; margin-top: 20px; }

  .aop-weights { margin-top: 32px; }
  .aop-weight {
    grid-template-columns: 1fr auto;
    grid-template-areas: "meta step" "sample sample" "stem stem";
    gap: 8px 12px;
    padding: 18px 0 20px;
  }
  .aop-weight-meta { grid-area: meta; flex-direction: row; align-items: baseline; gap: 8px; }
  .aop-weight-sample { grid-area: sample; font-size: 52px; }
  .aop-weight-stem { grid-area: stem; }
  .aop-weight-step { grid-area: step; }
  .aop-weight-bar { width: calc(var(--stem) * 28px); height: 32px; }


  .aop-section-head { flex-direction: column; align-items: flex-start; gap: 20px; }
  .aop-glyphs { grid-template-columns: repeat(6, 1fr); margin-top: 28px; border-radius: 18px; }
  .aop-glyphs li { font-size: 28px; }

  .aop-specs { margin-top: 28px; }
  .aop-specs div { grid-template-columns: 1fr; gap: 2px; padding: 14px 0; }
  .aop-specs dt, .aop-specs dd { font-size: 14px; letter-spacing: -0.0107em; }

  .aop-cta { padding-top: 104px; padding-bottom: 72px; }
  .aop-cta-title { font-size: 32px; line-height: 1.125; }
  .aop-cta-meta { font-size: 15px; letter-spacing: -0.0153em; }
  /* the version on its own line, so no separator is left hanging at a line end */
  .aop-cta-meta span:last-child { display: block; margin-top: 2px; }
  .aop-cta-meta i:last-of-type { display: none; }
  .aop-button { margin-top: 24px; height: 48px; }
}

@media only screen and (max-width: 480px) {
  .aop-glyphs { grid-template-columns: repeat(5, 1fr); }
  .aop-stat-value { font-size: 32px; }
}

/* narrowest iPhones: each fact on its own line */
@media only screen and (max-width: 359px) {
  .aop-cta-meta span { display: block; }
  .aop-cta-meta i { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .aop-hero-specimen span { animation: none; }
  .pinned-header .site-header, .pinned-blur { transition: none; }
}