html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--ab-font);
  color: var(--color-text);
  background:
    radial-gradient(1200px 700px at 15% 10%, color-mix(in oklab, var(--color-accent) 35%, transparent), transparent 60%),
    radial-gradient(1000px 600px at 85% 20%, color-mix(in oklab, var(--color-accent) 18%, transparent), transparent 55%),
    linear-gradient(180deg, var(--color-bg-elevated), var(--color-bg) 65%);
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

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

p,
h1,
h2,
h3,
ul {
  margin: 0;
}

.ab-wrap {
  max-width: var(--ab-max);
  margin: 0 auto;
  padding: 0 22px;
}

.ab-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--color-bg-elevated) 75%, transparent);
  border-bottom: var(--ab-border);
  overflow: visible;
}

.ab-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
  overflow: visible;
}

.ab-brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
}

.ab-brand img {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  object-fit: contain;
  box-shadow: var(--shadow-accent);
}

.ab-brand-text {
  font-family: var(--ab-display);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: color-mix(in oklab, var(--ab-offwhite) 84%, var(--ab-silver));
}

.ab-links {
  display: flex;
  gap: 18px;
  align-items: center;
  flex-wrap: nowrap;
  overflow: visible;
}

.ab-nav-dropdown {
  position: relative;
  padding-bottom: 12px;
  margin-bottom: -12px;
}

.ab-nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.ab-nav-dropdown-toggle::after {
  content: "▾";
  font-size: 11px;
  color: color-mix(in oklab, var(--ab-offwhite) 75%, var(--ab-silver));
}

.ab-nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  z-index: 1000;
  min-width: 220px;
  padding: 10px;
  border: var(--ab-border);
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--color-surface-elevated) 78%, transparent);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 120ms ease, visibility 0s linear 120ms;
}

.ab-nav-dropdown-menu::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
}

.ab-nav-dropdown-menu a,
.ab-nav-dropdown-note {
  display: block;
  width: 100%;
  padding: 6px 8px;
  border-radius: var(--radius-xs);
  line-height: 1.35;
  white-space: normal;
}

.ab-nav-dropdown-menu a:hover {
  background: color-mix(in oklab, var(--color-accent) 14%, transparent);
}

.ab-nav-dropdown-note {
  color: color-mix(in oklab, var(--ab-offwhite) 62%, var(--ab-silver));
  cursor: default;
}

.ab-nav-dropdown.is-open .ab-nav-dropdown-menu,
.ab-nav-dropdown:hover .ab-nav-dropdown-menu,
.ab-nav-dropdown:focus-within .ab-nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 120ms ease;
}

@media (hover: none) {
  .ab-nav-dropdown:hover .ab-nav-dropdown-menu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 120ms ease, visibility 0s linear 120ms;
  }

  .ab-nav-dropdown.is-open .ab-nav-dropdown-menu,
  .ab-nav-dropdown:focus-within .ab-nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: opacity 120ms ease;
  }
}

.ab-links a {
  color: color-mix(in oklab, var(--ab-offwhite) 75%, var(--ab-silver));
  font-size: 14px;
}

.ab-links a:hover,
.ab-links a[aria-current="page"] {
  color: var(--color-text);
}

.ab-links a:focus-visible,
.ab-btn:focus-visible,
.ab-brand:focus-visible {
  outline: 2px solid var(--color-accent-border);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

.ab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: var(--ab-border);
  background: linear-gradient(180deg, color-mix(in oklab, var(--ab-steel) 35%, transparent), var(--overlay-button-bottom));
  color: var(--color-text);
  box-shadow: var(--shadow-1);
  font-weight: 600;
  transition: transform 160ms ease;
}

.ab-btn:hover {
  transform: translateY(-1px);
}

.ab-btn.primary {
  border: 1px solid color-mix(in oklab, var(--ab-gold) 55%, transparent);
  background: linear-gradient(180deg, color-mix(in oklab, var(--ab-gold) 26%, transparent), var(--overlay-button-primary-bottom));
}

.ab-hero {
  padding: 70px 0 28px;
}

.ab-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 26px;
  align-items: stretch;
}

.ab-eyebrow {
  font-family: var(--ab-mono);
  font-size: 12px;
  color: color-mix(in oklab, var(--ab-offwhite) 70%, var(--ab-silver));
  margin-bottom: 10px;
}

.ab-h1 {
  font-family: var(--ab-display);
  font-size: clamp(34px, 5vw, 50px);
  line-height: 1.06;
  margin-bottom: 14px;
  max-width: 14ch;
}

.ab-sub {
  color: color-mix(in oklab, var(--ab-offwhite) 70%, var(--ab-silver));
  font-size: 16px;
  line-height: 1.6;
  max-width: 62ch;
}

.ab-chiprow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.ab-chip {
  border: var(--ab-border);
  background: color-mix(in oklab, var(--color-surface) 45%, transparent);
  padding: 8px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--ab-mono);
  font-size: 12px;
  color: color-mix(in oklab, var(--ab-offwhite) 65%, var(--ab-silver));
}

.ab-card {
  border: var(--ab-border);
  border-radius: var(--ab-radius-lg);
  background:
    radial-gradient(900px 320px at 0% 0%, var(--overlay-card-top), transparent 55%),
    linear-gradient(180deg, var(--overlay-card-top-soft), var(--overlay-card-bottom));
  box-shadow: var(--ab-shadow);
}

.ab-card.pad {
  padding: 18px;
}

.ab-logo-frame {
  position: relative;
  overflow: hidden;
  min-height: var(--logo-frame-min-height);
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: var(--logo-frame-gap);
  padding: var(--logo-frame-pad-block) var(--logo-frame-pad-inline) calc(var(--logo-frame-pad-block) + 2px);
}

.ab-logo-frame::before {
  content: "";
  position: absolute;
  inset: 1px 1px auto 1px;
  height: 128px;
  background: linear-gradient(180deg, var(--logo-card-top-edge), transparent);
  border-radius: var(--ab-radius-lg) var(--ab-radius-lg) 0 0;
  pointer-events: none;
}

.ab-logo-frame img {
  width: 100%;
  height: 100%;
  min-height: 0;
  border-radius: var(--ab-radius);
  object-fit: cover;
  object-position: var(--logo-image-position);
}

.ab-logo-frame figcaption {
  color: var(--logo-caption-color);
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: 0.01em;
  padding: 2px 2px 0;
}

.ab-section {
  padding: 34px 0;
}

.ab-h2 {
  font-family: var(--ab-display);
  font-size: 24px;
  margin-bottom: 12px;
}

.ab-muted {
  color: color-mix(in oklab, var(--ab-offwhite) 65%, var(--ab-silver));
}

.ab-grid3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.ab-grid2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.ab-offer h3,
.ab-project h3,
.ab-mini h3 {
  font-family: var(--ab-display);
  font-size: 18px;
  margin-bottom: 8px;
}

.ab-offer p,
.ab-project p,
.ab-mini p {
  color: color-mix(in oklab, var(--ab-offwhite) 66%, var(--ab-silver));
  font-size: 14px;
  line-height: 1.6;
}

.ab-list {
  margin-top: 12px;
  padding-left: 18px;
  color: color-mix(in oklab, var(--ab-offwhite) 70%, var(--ab-silver));
  font-size: 14px;
  line-height: 1.7;
}

.ab-list li + li {
  margin-top: 4px;
}

.ab-divider {
  height: 1px;
  width: 100%;
  margin: 18px 0;
  background: var(--color-divider);
}

.ab-hero-art {
  width: 100%;
  border-radius: var(--ab-radius-lg);
  border: var(--ab-border);
  object-fit: cover;
}

.ab-intake-shell {
  border: var(--ab-border);
  border-radius: var(--ab-radius-lg);
  background: linear-gradient(180deg, var(--overlay-card-top-soft), var(--overlay-card-bottom));
  padding: 16px;
}

.ab-form-grid {
  display: grid;
  gap: 12px;
}

.ab-form-row label {
  display: block;
  font-size: 12px;
  margin-bottom: 6px;
  color: color-mix(in oklab, var(--ab-offwhite) 70%, var(--ab-silver));
}

.ab-form-row input,
.ab-form-row textarea,
.ab-form-row select {
  width: 100%;
  border: var(--ab-border);
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--color-surface-elevated) 68%, transparent);
  color: var(--color-text);
  padding: 10px 10px;
  font-family: var(--ab-font);
  font-size: 14px;
}

.ab-chips-inline {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.ab-chips-inline label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 0;
  font-size: 13px;
  color: color-mix(in oklab, var(--ab-offwhite) 75%, var(--ab-silver));
}

.ab-chips-inline input[type="checkbox"] {
  accent-color: var(--color-accent);
}

.ab-footer {
  padding: 42px 0 56px;
  color: color-mix(in oklab, var(--ab-offwhite) 60%, var(--ab-silver));
  font-size: 13px;
}

.ab-footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.ab-footer::after {
  content: "AlphaBeta Labs (alphabetalabs.ai) is not affiliated with similarly named third-party products or communities.";
  display: block;
  margin-top: 10px;
  max-width: 74ch;
  color: color-mix(in oklab, var(--ab-offwhite) 52%, var(--ab-silver));
}

.reveal {
  opacity: 0;
  transform: translate3d(0, 16px, 0);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (max-width: 980px) {
  .ab-hero-grid,
  .ab-grid3,
  .ab-grid2 {
    grid-template-columns: 1fr;
  }

  .ab-links {
    gap: 10px;
  }

  .ab-logo-frame {
    min-height: var(--logo-frame-min-height-mobile);
    padding-inline: calc(var(--logo-frame-pad-inline) - 2px);
  }

  .ab-h1 {
    max-width: none;
  }
}

@media (max-width: 760px) {
  .ab-wrap {
    padding: 0 14px;
  }

  .ab-nav-inner {
    flex-wrap: wrap;
  }

  .ab-links {
    flex-wrap: wrap;
    justify-content: flex-end;
    font-size: 13px;
  }

  .ab-nav-dropdown {
    padding-bottom: 0;
    margin-bottom: 0;
  }

  .ab-nav-dropdown-menu {
    left: auto;
    right: 0;
  }

  .ab-btn {
    padding: 9px 11px;
    border-radius: var(--radius-tight);
    font-size: 13px;
  }

  .ab-logo-frame figcaption {
    color: var(--logo-caption-color-mobile);
  }

  .ab-h1 {
    font-size: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .ab-btn {
    transition: none;
  }
}

.ab-filter-panel {
  border: var(--ab-border);
  border-radius: var(--ab-radius-lg);
  background:
    radial-gradient(900px 320px at 0% 0%, var(--overlay-card-top), transparent 55%),
    linear-gradient(180deg, var(--overlay-card-top-soft), var(--overlay-card-bottom));
  box-shadow: var(--ab-shadow);
  padding: 18px;
}

.ab-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.ab-filter-chip {
  border: var(--ab-border);
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--color-surface-elevated) 60%, transparent);
  color: color-mix(in oklab, var(--color-text) 84%, var(--color-text-muted));
  padding: 8px 12px;
  font-family: var(--ab-mono);
  font-size: 12px;
  line-height: 1;
  box-shadow: var(--shadow-1);
  cursor: pointer;
  transition: transform var(--duration-fast) ease;
}

.ab-filter-chip:hover {
  transform: translateY(-1px);
}

.ab-filter-chip.is-active {
  border-color: var(--color-accent-border);
  color: var(--color-text);
  box-shadow: var(--shadow-accent);
}

.ab-select {
  border: var(--ab-border);
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--color-surface-elevated) 68%, transparent);
  color: var(--color-text);
  padding: 10px 12px;
  font-size: 14px;
  min-width: 220px;
}

.ab-inline-stat {
  font-family: var(--ab-mono);
  font-size: 12px;
  color: color-mix(in oklab, var(--color-text) 72%, var(--color-text-muted));
}

.ab-note-card[hidden] {
  display: none;
}

.ab-note-card[href] {
  display: block;
  color: inherit;
  text-decoration: none;
}

.ab-note-card[href]:focus-visible {
  outline: 2px solid var(--color-accent-border);
  outline-offset: 2px;
}

.ab-note-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
}

.ab-tagrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.ab-tag {
  border: var(--ab-border);
  border-radius: var(--radius-pill);
  padding: 5px 8px;
  font-family: var(--ab-mono);
  font-size: 11px;
  color: color-mix(in oklab, var(--color-text) 74%, var(--color-text-muted));
  background: color-mix(in oklab, var(--color-surface-elevated) 50%, transparent);
}