:root {
  --paper: #f1edf6;
  --paper-2: #e5ddee;
  --ink: #1a1612;
  --ink-2: #4b4339;
  --ink-3: #8a8073;
  --hug: #c44a3f;
  --hug-2: #a83a30;
  --hug-soft: #ecb8ad;
  --hug-bg: #fae9e0;
  --green: #6b8e6e;
  --green-2: #2f6b40;
  --green-bg: rgba(107, 142, 110, 0.16);
  --line: #d3c8da;
  --serif:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", Arial, sans-serif;
  --sans:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Helvetica Neue", Arial, sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  height: 100%;
}
body {
  position: relative;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(
      ellipse 60% 40% at 85% -5%,
      rgba(132, 102, 178, 0.14) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 70% 50% at -5% 105%,
      rgba(196, 74, 63, 0.07) 0%,
      transparent 55%
    ),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.05 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  font-size: 17.5px;
}

.app {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- Seamless background grid: × → $ cluster bloom ---------- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none; /* JS computes cluster from mousemove */
  display: grid;
  grid-template-columns: repeat(auto-fill, 32px);
  grid-auto-rows: 32px;
  justify-content: center;
  align-content: start;
  padding: 0;
  gap: 0; /* truly seamless */
  overflow: hidden;
  /* Hide the grid behind the reading column so words stay distraction-free.
       Keep glyphs only in the side margins, with a soft 80px fade at the edge. */
  -webkit-mask-image: linear-gradient(
    to right,
    rgba(0, 0, 0, 1) 0,
    rgba(0, 0, 0, 1) calc(50% - 600px),
    rgba(0, 0, 0, 0) calc(50% - 520px),
    rgba(0, 0, 0, 0) calc(50% + 520px),
    rgba(0, 0, 0, 1) calc(50% + 600px),
    rgba(0, 0, 0, 1) 100%
  );
  mask-image: linear-gradient(
    to right,
    rgba(0, 0, 0, 1) 0,
    rgba(0, 0, 0, 1) calc(50% - 600px),
    rgba(0, 0, 0, 0) calc(50% - 520px),
    rgba(0, 0, 0, 0) calc(50% + 520px),
    rgba(0, 0, 0, 1) calc(50% + 600px),
    rgba(0, 0, 0, 1) 100%
  );
}
.bg-cell {
  position: relative;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}
.bg-cell .x,
.bg-cell .dollar {
  position: absolute;
  line-height: 1;
}
.bg-cell .x {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 13px;
  color: var(--hug-2);
  opacity: 0.18;
  transform: scale(1);
  transition:
    opacity 0.65s cubic-bezier(0.25, 0.8, 0.25, 1),
    transform 0.65s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.bg-cell .dollar {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-size: 13px;
  color: var(--green-2);
  opacity: 0;
  transform: scale(0.55);
  transition:
    opacity 0.55s cubic-bezier(0.25, 0.8, 0.25, 1),
    transform 0.55s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.bg-cell.flipped .x {
  opacity: 0;
  transform: scale(0.7);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
}
.bg-cell.flipped .dollar {
  opacity: 0.92;
  transform: scale(1);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
}
@media (max-width: 720px) {
  .bg-grid {
    display: none;
  }
}

/* Brand wordmark */
.brand-link {
  display: inline-flex;
  align-items: baseline;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition:
    opacity 0.15s,
    transform 0.15s;
  gap: 0;
}
.brand-link:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}
.brand-text {
  font-family: var(--serif);
  font-style: italic;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
  font-size: 30px;
}
.brand-text .em {
  color: var(--hug);
  font-style: italic;
  font-weight: 500;
}
.brand-text .small {
  font-size: 18px;
  color: var(--ink-3);
  margin-left: 1px;
  font-weight: 400;
}

/* ---------- Header ---------- */
header.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--line);
}
.brand .mark {
  font-family: var(--serif);
  font-style: italic;
  font-size: 30px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand .mark .dot {
  color: var(--hug);
}
.brand .mark .product {
  font-family: var(--sans);
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-left: 8px;
  font-weight: 500;
}
header .nav {
  display: flex;
  gap: 24px;
  align-items: baseline;
}
header .nav a {
  font-family: var(--serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.15s,
    color 0.15s;
  padding-bottom: 1px;
}
header .nav a:hover {
  border-bottom-color: var(--hug);
  color: var(--hug);
}
header .nav a.cta {
  font-family: var(--sans);
  font-style: normal;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 11px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  border-radius: 999px;
  border-bottom: 0;
  transition:
    background 0.18s,
    transform 0.15s;
  white-space: nowrap;
}
header .nav a.cta:hover {
  background: var(--hug);
  color: var(--paper);
  transform: translateY(-1px);
  border-bottom: 0;
}

/* ---------- The swap effect (red wrong  ⟷  green right) ---------- */
.swap {
  display: inline-grid;
  grid-template-columns: 1fr;
  cursor: help;
  position: relative;
  vertical-align: baseline;
}
.swap .wrong,
.swap .right {
  grid-column: 1;
  grid-row: 1;
  padding: 0 6px;
  border-radius: 4px;
  transition:
    opacity 0.42s cubic-bezier(0.25, 0.8, 0.25, 1),
    transform 0.42s cubic-bezier(0.25, 0.8, 0.25, 1),
    filter 0.42s ease;
}
.swap .wrong {
  color: var(--hug-2);
  text-decoration: line-through;
  text-decoration-color: var(--hug);
  text-decoration-thickness: 2.5px;
  background: rgba(196, 74, 63, 0.1);
}
.swap .right {
  color: var(--green-2);
  background: var(--green-bg);
  font-weight: 500;
  opacity: 0;
  transform: translateY(4px);
  filter: blur(2px);
  text-decoration: none;
}
.swap:hover .wrong,
.swap:focus-visible .wrong,
.swap.flipped .wrong {
  opacity: 0;
  transform: translateY(-4px);
  filter: blur(2px);
}
.swap:hover .right,
.swap:focus-visible .right,
.swap.flipped .right {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}
/* a faint pulse on the wrong text by default — hints it's interactive */
@keyframes nudge {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(196, 74, 63, 0);
  }
  50% {
    box-shadow: 0 0 0 3px rgba(196, 74, 63, 0.1);
  }
}
.swap .wrong {
  animation: nudge 4s ease-in-out infinite;
}

/* ---------- Example-card edit animation ----------
     Side-by-side end state: ̶w̶r̶o̶n̶g̶ correct.
     Phase 1 (0–450ms): strike line wipes left→right across the red span.
     Phase 2 (420ms+):  right span reveals via max-width with steps(),
                        which looks like a typewriter. */
.ex-card .swap {
  display: inline;
  position: relative;
  cursor: help;
  vertical-align: baseline;
}
.ex-card .swap .wrong,
.ex-card .swap .right {
  grid-column: auto;
  grid-row: auto;
  display: inline-block;
  padding: 0 5px;
  border-radius: 3px;
  vertical-align: baseline;
}
.ex-card .swap .wrong {
  position: relative;
  color: var(--hug-2);
  background: rgba(196, 74, 63, 0.1);
  text-decoration: none;
  opacity: 1;
  transform: none;
  filter: none;
  transition: background 0.25s ease;
  animation: nudge 4s ease-in-out infinite;
}
.ex-card .swap .wrong::after {
  content: "";
  position: absolute;
  top: 52%;
  left: 5px;
  right: 5px;
  height: 2.5px;
  background: var(--hug);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.45s cubic-bezier(0.25, 0.8, 0.25, 1);
  pointer-events: none;
}
.ex-card .swap .right {
  position: static;
  color: var(--green-2);
  background: var(--green-bg);
  font-weight: 500;
  text-decoration: none;
  opacity: 0;
  transform: none;
  filter: none;
  max-width: 0;
  margin-left: 0;
  padding-left: 0;
  padding-right: 0;
  overflow: hidden;
  white-space: nowrap;
  transition:
    max-width 0.6s steps(18, jump-end),
    opacity 0.25s ease,
    margin-left 0.3s ease,
    padding 0.3s ease;
}

/* editing state — triggered by hover, focus, or .flipped (auto-play) */
.ex-card .swap:hover .wrong::after,
.ex-card .swap:focus-visible .wrong::after,
.ex-card .swap.flipped .wrong::after {
  transform: scaleX(1);
}

/* keep the wrong span visible (overrides base .swap hover that fades it) */
.ex-card .swap:hover .wrong,
.ex-card .swap:focus-visible .wrong,
.ex-card .swap.flipped .wrong {
  opacity: 1;
  transform: none;
  filter: none;
}

.ex-card .swap:hover .right,
.ex-card .swap:focus-visible .right,
.ex-card .swap.flipped .right {
  max-width: 36ch;
  opacity: 1;
  margin-left: 6px;
  padding-left: 5px;
  padding-right: 5px;
  transition:
    max-width 0.6s steps(18, jump-end) 0.42s,
    opacity 0.25s ease 0.42s,
    margin-left 0.3s ease 0.42s,
    padding 0.3s ease 0.42s;
}

/* ---------- Hero ---------- */
.hero {
  padding: 64px 0 80px;
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  display: block;
}
.hero-copy {
  min-width: 0;
  align-self: center;
  text-align: center;
}
.hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding: 10px 18px;
  border: 1px solid var(--hug-soft);
  background: var(--hug-bg);
  border-radius: 999px;
  color: var(--ink-2);
  box-shadow: 0 14px 28px -22px rgba(196, 74, 63, 0.42);
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
}
.hero .badge-copy {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}
.hero .badge strong {
  color: var(--hug-2);
  font: 500 34px var(--sans);
  letter-spacing: -0.03em;
  line-height: 1;
}
.hero .badge .badge-label {
  font: 500 12px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  line-height: 1.2;
}
.hero .badge .pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--hug);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(196, 74, 63, 0.6);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(196, 74, 63, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(196, 74, 63, 0);
  }
}
.hero .quote-label {
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--ink-3);
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(58px, 7vw, 98px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--ink);
  white-space: nowrap;
}
.hero h1 .mono {
  font-family: var(--serif);
  font-style: italic;
  font-feature-settings: "tnum";
}
.hero h1 em {
  font-style: italic;
}
.hero h1 .swap.hero-word-swap {
  position: relative;
  display: inline-grid;
  grid-template-columns: max-content;
  align-items: baseline;
  vertical-align: baseline;
  cursor: pointer;
  margin-left: 8px;
  transform: translateY(-0.035em);
  gap: 0;
  isolation: isolate;
}
.hero h1 .swap.hero-word-swap .wrong,
.hero h1 .swap.hero-word-swap .right {
  grid-column: 1;
  grid-row: 1;
  display: inline-block;
  position: relative;
  font-style: italic;
  animation: none;
  filter: none !important;
  line-height: 1.05;
}
.hero h1 .swap.hero-word-swap .wrong {
  color: var(--hug-2);
  text-decoration: none;
  background: rgba(196, 74, 63, 0.12);
  border-radius: 6px;
  padding: 0 4px;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    background 0.28s ease,
    color 0.28s ease;
}
.hero h1 .swap.hero-word-swap .wrong::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 53%;
  height: 2.5px;
  background: var(--hug);
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.52s cubic-bezier(0.25, 0.8, 0.25, 1);
  pointer-events: none;
}
.hero h1 .swap.hero-word-swap .right {
  color: var(--green-2);
  font-weight: 300;
  background: rgba(107, 142, 110, 0.18);
  border-radius: 6px;
  padding: 0 4px;
  max-width: none;
  opacity: 0;
  visibility: hidden;
  white-space: nowrap;
  transform: translateY(4px) scale(0.96);
  transition:
    opacity 0.24s ease,
    transform 0.28s cubic-bezier(0.2, 0.9, 0.2, 1.05);
}
.hero h1 .swap.hero-word-swap.state-cross .wrong {
  animation: failJitter 0.55s ease-in-out;
}
.hero h1 .swap.hero-word-swap.state-cross .wrong::after {
  transform: scaleX(1);
}
.hero h1 .swap.hero-word-swap.state-success .wrong {
  opacity: 0;
  visibility: hidden;
  transform: translateY(-3px);
}
.hero h1 .swap.hero-word-swap.state-success .right {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  animation: successPop 0.35s ease-out;
}
@keyframes failJitter {
  0% {
    transform: translateX(0);
  }
  24% {
    transform: translateX(-0.5px);
  }
  52% {
    transform: translateX(0.7px);
  }
  78% {
    transform: translateX(-0.4px);
  }
  100% {
    transform: translateX(0);
  }
}
@keyframes successPop {
  0% {
    opacity: 0;
    transform: translateY(6px) scale(0.94);
  }
  62% {
    opacity: 1;
    transform: translateY(-1px) scale(1.03);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
.hero .tagline {
  margin-top: 24px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 21px;
  color: var(--ink-2);
  max-width: 56ch;
  line-height: 1.5;
  margin-left: auto;
  margin-right: auto;
}
.hero .tagline strong {
  font-style: normal;
  color: var(--green-2);
}
.hero .actions {
  margin-top: 28px;
  display: flex;
  gap: 22px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
  padding: 14px 28px;
  border-radius: 999px;
  font: 500 13px var(--sans);
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition:
    background 0.18s,
    transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-primary:hover {
  background: var(--hug);
  transform: translateY(-1px);
}
.hero-secondary {
  color: var(--ink-2);
  font: 500 12.5px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition:
    color 0.15s,
    border-color 0.15s;
}
.hero-secondary:hover {
  color: var(--hug);
  border-bottom-color: var(--hug-soft);
}
.hero-recent {
  margin-top: 52px;
}
.hero-recent .label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 10px;
  font-weight: 500;
}
.hero-recent h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(26px, 3.1vw, 38px);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 22px;
}
.hero-recent h3 em {
  font-style: italic;
  color: var(--green-2);
}
.hero-recent .ex-grid {
  gap: 14px;
}
.hero-recent .ex-card {
  text-align: left;
  padding: 18px 18px 16px;
  min-height: 0;
  transition: none;
}
.hero-recent .ex-card:hover {
  transform: none;
  box-shadow: 0 18px 40px -28px rgba(40, 25, 10, 0.18);
  border-color: var(--line);
}
.hero-recent .ex-card .quote {
  font-size: 16.5px;
  line-height: 1.42;
}
.hero-recent .chat-thread {
  display: grid;
  gap: 9px;
}
.hero-recent .chat-bubble {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 9px 11px;
  background: rgba(255, 253, 248, 0.92);
  max-width: 92%;
  width: fit-content;
}
.hero-recent .chat-bubble.user {
  margin-left: auto;
  background: rgba(229, 221, 238, 0.55);
}
.hero-recent .chat-bubble.ai {
  margin-right: auto;
  background: rgba(250, 233, 224, 0.28);
  max-width: 100%;
  width: 100%;
}
.hero-recent .chat-bubble.user .chat-role {
  text-align: right;
}
.hero-recent .chat-role {
  display: block;
  font: 700 9.5px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.hero-recent .chat-bubble p {
  font-size: 14px;
  line-height: 1.42;
  color: var(--ink);
  margin: 0;
  overflow-wrap: anywhere;
}
.hero-recent .math-inline {
  font-family:
    "Cambria Math", "STIX Two Text", "Times New Roman", Georgia, serif;
  font-style: italic;
  font-size: 1.06em;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.hero-recent .math-inline .math-op {
  font-style: normal;
  margin-right: 0.08em;
}
.hero-recent .math-inline sup {
  font-size: 0.72em;
}
.hero-recent .ex-card .pay {
  font-size: 12.5px;
  padding-top: 10px;
}
.hero-recent .swap {
  display: inline-grid;
  grid-template-columns: max-content;
  align-items: baseline;
  vertical-align: baseline;
  cursor: pointer;
  pointer-events: auto;
  --type-ms: 180ms;
  --type-steps: 10;
}
.hero-recent .swap .wrong,
.hero-recent .swap .right {
  grid-column: 1;
  grid-row: 1;
  display: inline-block;
  border-radius: 4px;
  padding: 0 4px;
  white-space: nowrap;
  transition:
    opacity 0.16s ease,
    transform 0.16s ease,
    filter 0.16s ease;
}
.hero-recent .swap .wrong {
  position: relative;
  color: var(--hug-2);
  background: rgba(196, 74, 63, 0.12);
  text-decoration: none;
  animation: none;
  opacity: 1;
  transform: translateY(0);
}
.hero-recent .swap .wrong::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 54%;
  height: 2px;
  background: var(--hug);
  transform-origin: left center;
  transform: scaleX(0);
  opacity: 0;
  transition:
    transform 0.16s ease-out,
    opacity 0.12s ease-out;
  pointer-events: none;
}
.hero-recent .swap .right {
  position: relative;
  color: var(--green-2);
  background: var(--green-bg);
  max-width: none;
  margin-left: 0;
  padding-left: 4px;
  padding-right: 4px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(2px);
  clip-path: inset(0 100% 0 0);
  -webkit-clip-path: inset(0 100% 0 0);
  border-right: 0 solid transparent;
  animation: none;
  will-change: clip-path, opacity, transform;
}
.hero-recent .swap .right::after {
  content: "$";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-53%);
  font: 700 10px var(--sans);
  color: var(--green-2);
  opacity: 0;
  pointer-events: none;
  text-shadow: 0 0 8px rgba(47, 107, 64, 0.34);
}
.hero-recent .swap:hover .wrong,
.hero-recent .swap:focus-visible .wrong,
.hero-recent .swap.flipped .wrong {
  opacity: 0;
  filter: saturate(0.86);
  transform: translateY(-1.5px);
  transition-delay: 0.08s;
}
.hero-recent .swap:hover .wrong::after,
.hero-recent .swap:focus-visible .wrong::after,
.hero-recent .swap.flipped .wrong::after {
  transform: scaleX(1);
  opacity: 1;
}
.hero-recent .swap:hover .right,
.hero-recent .swap:focus-visible .right,
.hero-recent .swap.flipped .right {
  opacity: 1;
  transform: translateY(0);
  animation:
    heroRecentTypeIn var(--type-ms) steps(var(--type-steps), end) 0.06s forwards,
    heroRecentCashGlow 0.18s ease-out calc(var(--type-ms) + 0.02s) 1;
}
.hero-recent .swap:hover .right::after,
.hero-recent .swap:focus-visible .right::after,
.hero-recent .swap.flipped .right::after {
  animation: heroRecentCashCursor var(--type-ms) steps(2, end) 0.06s 1;
}
@keyframes heroRecentTypeIn {
  0% {
    opacity: 1;
    clip-path: inset(0 100% 0 0);
    -webkit-clip-path: inset(0 100% 0 0);
    border-right: 2px solid var(--green-2);
  }
  84% {
    border-right: 2px solid var(--green-2);
  }
  100% {
    clip-path: inset(0 0 0 0);
    -webkit-clip-path: inset(0 0 0 0);
    border-right: 0 solid transparent;
  }
}
@keyframes heroRecentCashCursor {
  0%,
  70% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@keyframes heroRecentCashGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(47, 107, 64, 0);
  }
  45% {
    box-shadow: 0 0 0 6px rgba(47, 107, 64, 0.22);
  }
  100% {
    box-shadow: 0 0 0 10px rgba(47, 107, 64, 0);
  }
}

/* ---------- Hero Timeline ---------- */
.hero-timeline {
  position: relative;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 18px 16px;
  box-shadow: 0 24px 58px -34px rgba(40, 25, 10, 0.28);
  margin-top: 30px;
}
.timeline-head {
  font: 600 10.5px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  margin-bottom: 9px;
}
.timeline-track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 2px 2px 8px;
  margin: 0;
  scrollbar-width: thin;
  scroll-snap-type: x mandatory;
}
.timeline-step {
  position: relative;
  flex: 0 0 210px;
  scroll-snap-align: start;
}
.timeline-step:not(:last-child)::after {
  content: "\2192";
  position: absolute;
  right: -10px;
  top: 45%;
  transform: translateY(-50%);
  color: var(--hug);
  font-size: 16px;
  z-index: 2;
}
.timeline-years {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px 4px;
  border-radius: 999px;
  border: 1px solid var(--hug-soft);
  background: var(--hug-bg);
  font: 700 10px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--hug-2);
  margin-bottom: 8px;
}
.timeline-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px 9px 9px;
  background: rgba(255, 253, 248, 0.9);
}
.timeline-media {
  display: block;
  width: 100%;
  height: 88px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--paper-2);
  background: var(--paper-2);
  margin-bottom: 8px;
}
.timeline-card h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.timeline-card .impact {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.timeline-card p {
  font-size: 13.5px;
  line-height: 1.42;
  color: var(--ink-2);
}
.timeline-card strong {
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 500;
  font-style: italic;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.timeline-card em {
  font-style: normal;
  color: var(--hug-2);
  font-weight: 500;
}
.timeline-note {
  margin-top: 8px;
  font: italic 13px var(--serif);
  color: var(--ink-2);
  border-left: 2px solid var(--hug-soft);
  padding-left: 10px;
}

.hero-timeline::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 18px;
  pointer-events: none;
  background:
    radial-gradient(
      circle at 14% 10%,
      rgba(196, 74, 63, 0.1) 0,
      transparent 42%
    ),
    radial-gradient(
      circle at 87% 78%,
      rgba(107, 142, 110, 0.12) 0,
      transparent 45%
    );
}
.hero-speed {
  display: inline-flex;
  align-items: center;
  margin-top: 14px;
  padding: 5px 10px 6px;
  border: 1px solid rgba(47, 107, 64, 0.3);
  border-radius: 999px;
  background: rgba(107, 142, 110, 0.1);
  color: var(--green-2);
  font: 600 11px var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ---------- Accepted models ---------- */
.accepted-models {
  padding: 54px 0 38px;
  border-bottom: 1px solid var(--line);
}
.accepted-models .label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 14px;
  font-weight: 500;
}
.accepted-models h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(30px, 3.8vw, 46px);
  letter-spacing: -0.025em;
  margin-bottom: 10px;
  line-height: 1.16;
}
.accepted-models h2 em {
  font-style: italic;
  color: var(--green-2);
}
.inline-provider-logos {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  vertical-align: middle;
  margin-left: 2px;
}
.inline-provider-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  vertical-align: middle;
  opacity: 0.95;
}
.accepted-models-note {
  margin: 0 0 24px;
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.01em;
}
.eligible-buttons {
  display: flex;
  flex-wrap: nowrap;
  gap: 12px;
  max-width: 980px;
  overflow-x: auto;
  padding-bottom: 3px;
  scrollbar-width: thin;
}
.eligible-model {
  --provider-accent: #5f6f85;
  flex: 0 0 calc((100% - 36px) / 4);
  min-width: 190px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.eligible-button {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  padding: 11px 13px;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--provider-accent) 26%, #d3c8da);
  border-left: 3px solid var(--provider-accent);
  background: #ffffff;
  box-shadow: 0 8px 22px -18px rgba(40, 25, 10, 0.28);
  color: var(--ink-2);
  text-decoration: none;
  min-height: 46px;
  transition:
    transform 0.15s ease,
    box-shadow 0.18s ease;
}
.eligible-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -18px rgba(40, 25, 10, 0.34);
}
.eligible-button img {
  width: 18px;
  height: 18px;
  object-fit: contain;
  flex-shrink: 0;
}
.eligible-button span {
  font-size: 13.5px;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.eligible-caption {
  display: block;
  font-size: 11.5px;
  color: color-mix(in oklab, var(--provider-accent) 62%, #2f6b40);
  letter-spacing: 0.005em;
  font-weight: 600;
  padding-left: 2px;
  margin-top: 2px;
  white-space: nowrap;
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
  transition:
    opacity 0.22s ease,
    transform 0.22s ease,
    filter 0.22s ease;
}
.eligible-caption.is-updating {
  opacity: 0;
  transform: translateY(4px);
  filter: blur(1px);
}

/* ---------- Examples ---------- */
.examples {
  padding: 90px 0;
}
.examples .label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 14px;
  font-weight: 500;
}
.examples h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 46px;
  letter-spacing: -0.025em;
  line-height: 1.15;
  max-width: 22ch;
  margin-bottom: 56px;
}
.examples h2 em {
  font-style: italic;
  color: var(--green-2);
}
.ex-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.ex-card {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px 26px 22px;
  box-shadow: 0 18px 40px -28px rgba(40, 25, 10, 0.18);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}
.ex-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 50px -28px rgba(40, 25, 10, 0.28);
  border-color: var(--hug-soft);
}
.ex-card .domain {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  font-weight: 500;
}
.ex-card .quote {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink);
}
.ex-card .pay {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-family: var(--serif);
  font-style: italic;
  font-size: 13.5px;
  color: var(--ink-3);
}
.ex-card .pay strong {
  color: var(--green-2);
  font-style: normal;
  font-weight: 500;
}

/* ---------- Reviews ---------- */
.reviews {
  padding: 88px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
}
.reviews .label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 14px;
  font-weight: 500;
}
.reviews h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(30px, 3.7vw, 46px);
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 38px;
  max-width: 22ch;
}
.reviews h2 em {
  font-style: italic;
  color: var(--hug);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.review-card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.86),
    rgba(251, 247, 255, 0.78)
  );
  border: 1px solid rgba(179, 162, 198, 0.55);
  border-radius: 18px;
  padding: 22px 22px 20px;
  box-shadow:
    0 18px 34px -30px rgba(40, 25, 10, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.35) inset;
  display: flex;
  flex-direction: column;
  gap: 13px;
  backdrop-filter: blur(2px);
  transition:
    transform 0.18s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}
.review-card:hover {
  transform: translateY(-2px);
  border-color: rgba(196, 74, 63, 0.42);
  box-shadow:
    0 20px 40px -30px rgba(40, 25, 10, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.45) inset;
}
.review-type {
  display: inline-flex;
  width: fit-content;
  border: 1px solid rgba(132, 102, 178, 0.32);
  color: #5e4a7a;
  background: rgba(132, 102, 178, 0.12);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 9.8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.review-quote {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
}
.review-foot {
  margin-top: auto;
  border-top: 1px dashed rgba(179, 162, 198, 0.52);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  color: var(--ink-3);
}
.review-who {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-weight: 600;
  color: #5a4d68;
}
.review-reward {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  color: var(--green-2);
}

/* ---------- Literature ---------- */
.literature {
  padding: 92px 0 86px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.literature .label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 14px;
  font-weight: 500;
}
.literature h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(30px, 3.8vw, 46px);
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 14px;
  max-width: 24ch;
}
.literature h2 em {
  font-style: italic;
  color: var(--hug);
}
.lit-sub {
  color: var(--ink-2);
  font-size: 16px;
  margin-bottom: 10px;
}
.lit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.lit-card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.9),
    rgba(248, 242, 253, 0.74)
  );
  border: 1px solid rgba(179, 162, 198, 0.52);
  border-radius: 18px;
  box-shadow:
    0 18px 36px -30px rgba(40, 25, 10, 0.24),
    0 0 0 1px rgba(255, 255, 255, 0.35) inset;
  padding: 18px 18px 16px;
  display: grid;
  gap: 8px;
  transition:
    transform 0.16s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}
.lit-card:hover {
  transform: translateY(-2px);
  border-color: var(--hug-soft);
  box-shadow:
    0 22px 42px -30px rgba(40, 25, 10, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.42) inset;
}
.lit-title {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.lit-status {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  font-weight: 600;
}
.lit-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
  margin-bottom: 2px;
}
.lit-logo {
  max-height: 30px;
  max-width: 124px;
  width: auto;
  height: auto;
  display: block;
}
.lit-desc {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.5;
}
.lit-authors {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}
.lit-authors strong {
  color: var(--ink);
  font-weight: 700;
}
.lit-authors a {
  color: inherit;
  text-decoration: none;
}
.lit-authors a:hover strong {
  color: var(--hug);
}
.lit-link {
  width: fit-content;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  color: var(--hug-2);
  font: 600 11px var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  transition:
    color 0.15s ease,
    border-color 0.15s ease;
  margin-top: 2px;
}
.lit-link:hover {
  color: var(--hug);
  border-bottom-color: var(--hug);
}
.corpus-block {
  margin-top: 18px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.9),
    rgba(247, 241, 253, 0.74)
  );
  border: 1px solid rgba(179, 162, 198, 0.52);
  border-radius: 18px;
  box-shadow:
    0 18px 36px -30px rgba(40, 25, 10, 0.24),
    0 0 0 1px rgba(255, 255, 255, 0.35) inset;
  padding: 18px 18px 16px;
}
.corpus-head h3 {
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  color: var(--ink);
}
.corpus-head p {
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.5;
  margin-bottom: 14px;
}
.corpus-head .corpus-link {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in oklab, var(--ink-3) 45%, transparent);
  padding-bottom: 2px;
  transition:
    color 0.15s ease,
    border-color 0.15s ease;
  margin-bottom: 12px;
}
.corpus-head .corpus-link:hover {
  color: var(--hug);
  border-bottom-color: var(--hug);
}
.corpus-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 14px;
  align-items: stretch;
}
.corpus-plot {
  position: relative;
  min-height: 332px;
  height: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background:
    radial-gradient(
      circle at 20% 24%,
      rgba(196, 74, 63, 0.12) 0,
      transparent 33%
    ),
    radial-gradient(
      circle at 76% 27%,
      rgba(45, 112, 152, 0.11) 0,
      transparent 34%
    ),
    radial-gradient(
      circle at 22% 72%,
      rgba(47, 107, 64, 0.11) 0,
      transparent 35%
    ),
    radial-gradient(
      circle at 72% 74%,
      rgba(128, 95, 168, 0.11) 0,
      transparent 35%
    ),
    radial-gradient(
      circle at 48% 52%,
      rgba(212, 130, 37, 0.11) 0,
      transparent 36%
    ),
    linear-gradient(180deg, rgba(255, 253, 248, 0.95), rgba(246, 238, 253, 0.7));
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.34);
}
.corpus-scene {
  position: absolute;
  inset: 0;
  transform-origin: 50% 50%;
  will-change: transform;
  transition: transform 0.16s ease-out;
  z-index: 1;
}
.corpus-plot.is-zoomed .corpus-scene {
  cursor: grab;
}
.corpus-plot.is-panning .corpus-scene {
  cursor: grabbing;
  transition: none;
}
.corpus-plot::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 22, 18, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 22, 18, 0.06) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.26;
  pointer-events: none;
}
.corpus-zoom-controls {
  position: absolute;
  z-index: 8;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 253, 248, 0.9);
  border: 1px solid rgba(179, 162, 198, 0.66);
  border-radius: 999px;
  padding: 4px;
  box-shadow: 0 8px 20px -16px rgba(40, 25, 10, 0.35);
}
.corpus-zoom-btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  width: 28px;
  height: 28px;
  display: inline-grid;
  place-items: center;
  background: rgba(132, 102, 178, 0.12);
  color: #5e4a7a;
  font: 700 14px var(--sans);
  cursor: pointer;
  transition:
    background 0.14s ease,
    color 0.14s ease,
    transform 0.14s ease;
}
.corpus-zoom-btn:hover {
  background: rgba(132, 102, 178, 0.2);
  color: var(--ink);
  transform: translateY(-1px);
}
.corpus-zoom-btn:focus-visible {
  outline: 2px solid rgba(132, 102, 178, 0.45);
  outline-offset: 1px;
}
.corpus-zoom-btn.reset {
  width: auto;
  min-width: 52px;
  padding: 0 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.corpus-density-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.corpus-blob {
  position: absolute;
  width: 160px;
  height: 130px;
  border-radius: 50%;
  filter: blur(16px);
  opacity: 0.22;
}
.corpus-blob.b-medicine {
  left: 8%;
  top: 9%;
  background: rgba(196, 74, 63, 0.7);
}
.corpus-blob.b-finance {
  left: 58%;
  top: 10%;
  background: rgba(45, 112, 152, 0.7);
}
.corpus-blob.b-legal {
  left: 12%;
  top: 58%;
  background: rgba(47, 107, 64, 0.7);
}
.corpus-blob.b-math {
  left: 58%;
  top: 60%;
  background: rgba(128, 95, 168, 0.7);
}
.corpus-blob.b-coding {
  left: 34%;
  top: 36%;
  background: rgba(212, 130, 37, 0.75);
}
.corpus-blob.b-other {
  left: 76%;
  top: 44%;
  background: rgba(108, 121, 142, 0.68);
}
.corpus-dots {
  position: absolute;
  inset: 0;
}
.corpus-cluster-label {
  appearance: none;
  border: 1px solid rgba(211, 200, 218, 0.7);
  position: absolute;
  z-index: 3;
  font: 700 10px var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(26, 22, 18, 0.62);
  background: rgba(255, 253, 248, 0.74);
  border-radius: 999px;
  padding: 3px 7px;
  pointer-events: auto;
  cursor: pointer;
  transition:
    background 0.14s ease,
    color 0.14s ease,
    border-color 0.14s ease,
    transform 0.14s ease;
  backdrop-filter: blur(2px);
}
.corpus-cluster-label:hover,
.corpus-cluster-label.is-active {
  color: var(--ink);
  background: rgba(132, 102, 178, 0.14);
  border-color: rgba(132, 102, 178, 0.36);
  transform: translateY(-1px);
}
.corpus-cluster-label:focus-visible {
  outline: 2px solid rgba(132, 102, 178, 0.45);
  outline-offset: 2px;
}
.corpus-cluster-label.l-medicine {
  left: 10%;
  top: 8%;
}
.corpus-cluster-label.l-finance {
  left: 66%;
  top: 10%;
}
.corpus-cluster-label.l-legal {
  left: 12%;
  top: 82%;
}
.corpus-cluster-label.l-math {
  left: 72%;
  top: 82%;
}
.corpus-cluster-label.l-coding {
  left: 42%;
  top: 47%;
}
.corpus-cluster-label.l-other {
  left: 82%;
  top: 49%;
}
.corpus-dot {
  position: absolute;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.84;
  transition:
    left 0.45s ease,
    top 0.45s ease,
    opacity 0.28s ease,
    transform 0.28s ease;
}
.corpus-dot.entering {
  animation: corpusDotIn 0.34s ease-out;
}
.corpus-dot.leaving {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.2);
}
.corpus-dot.d-medicine {
  background: rgba(196, 74, 63, 0.82);
  box-shadow: 0 0 8px rgba(196, 74, 63, 0.36);
}
.corpus-dot.d-finance {
  background: rgba(45, 112, 152, 0.82);
  box-shadow: 0 0 8px rgba(45, 112, 152, 0.34);
}
.corpus-dot.d-legal {
  background: rgba(47, 107, 64, 0.82);
  box-shadow: 0 0 8px rgba(47, 107, 64, 0.36);
}
.corpus-dot.d-math {
  background: rgba(128, 95, 168, 0.82);
  box-shadow: 0 0 8px rgba(128, 95, 168, 0.34);
}
.corpus-dot.d-coding {
  background: rgba(212, 130, 37, 0.86);
  box-shadow: 0 0 8px rgba(212, 130, 37, 0.38);
}
.corpus-dot.d-other {
  background: rgba(108, 121, 142, 0.8);
  box-shadow: 0 0 8px rgba(108, 121, 142, 0.3);
}
@keyframes corpusDotIn {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.25);
  }
  100% {
    opacity: 0.84;
    transform: translate(-50%, -50%) scale(1);
  }
}
.corpus-side {
  display: grid;
  gap: 10px;
}
.corpus-kpi {
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 10px 12px;
  background: rgba(255, 253, 248, 0.84);
}
.corpus-kpi .k-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 4px;
  font-weight: 600;
}
.corpus-kpi strong {
  font-family: var(--serif);
  color: var(--ink);
  font-size: 28px;
  letter-spacing: -0.02em;
  line-height: 1;
}
.corpus-kpi.removed strong {
  color: var(--hug-2);
}
.corpus-legend {
  list-style: none;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(255, 253, 248, 0.84);
  display: grid;
  gap: 8px;
}
.corpus-legend li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 0;
  color: var(--ink-2);
  font-size: 12.5px;
  border-radius: 9px;
  transition: background 0.14s ease;
}
.corpus-legend li:hover {
  background: rgba(132, 102, 178, 0.08);
}
.corpus-legend li::before {
  display: none;
}
.corpus-legend .name {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.corpus-legend .swatch {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.corpus-legend .count {
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.corpus-domain-trigger {
  appearance: none;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 3px 7px;
  margin-left: -7px;
  cursor: pointer;
  transition:
    background 0.14s ease,
    color 0.14s ease;
}
.corpus-domain-trigger:hover,
.corpus-domain-trigger.is-active {
  background: rgba(132, 102, 178, 0.12);
  color: var(--ink);
}
.corpus-domain-trigger:focus-visible {
  outline: 2px solid rgba(132, 102, 178, 0.45);
  outline-offset: 2px;
  background: rgba(132, 102, 178, 0.1);
}
.corpus-domain-gain {
  font: 700 10px var(--sans);
  letter-spacing: 0.08em;
  color: var(--green-2);
  background: rgba(47, 107, 64, 0.12);
  border: 1px solid rgba(47, 107, 64, 0.26);
  border-radius: 999px;
  padding: 1px 6px;
  opacity: 0;
  transform: translateY(2px);
  transition:
    opacity 0.16s ease,
    transform 0.16s ease;
  white-space: nowrap;
}
.corpus-domain-trigger:hover .corpus-domain-gain,
.corpus-domain-trigger:focus-visible .corpus-domain-gain,
.corpus-domain-trigger.is-active .corpus-domain-gain {
  opacity: 1;
  transform: translateY(0);
}
.corpus-live-note {
  border: 1px dashed rgba(179, 162, 198, 0.6);
  border-radius: 11px;
  padding: 9px 10px;
  background: rgba(255, 253, 248, 0.74);
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.4;
}
.corpus-live-note strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- Extension ---------- */
.extension {
  padding: 64px 0 68px;
  border-bottom: 1px solid var(--line);
}
.extension-card {
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 24px;
  box-shadow: 0 16px 34px -30px rgba(40, 25, 10, 0.24);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.extension-card h3 {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 8px;
}
.extension-card p {
  color: var(--ink-2);
  font-size: 15.5px;
  line-height: 1.55;
  max-width: 64ch;
}
.beta-pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(132, 102, 178, 0.36);
  color: #5e4a7a;
  background: rgba(132, 102, 178, 0.12);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 9.8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  margin-bottom: 10px;
}

/* ---------- How it works ---------- */
.how {
  padding: 90px 0;
  border-top: 1px solid var(--line);
}
.how h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 46px;
  letter-spacing: -0.025em;
  margin-bottom: 56px;
}
.how h2 em {
  font-style: italic;
  color: var(--hug);
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.step {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.step .num {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: 64px;
  color: var(--hug);
  line-height: 0.9;
  letter-spacing: -0.04em;
}
.step h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.step p {
  font-size: 17px;
  color: var(--ink-2);
  line-height: 1.6;
}
.step p strong {
  color: var(--green-2);
  font-weight: 500;
}

/* ---------- Final CTA ---------- */
.final {
  padding: 100px 0 110px;
  text-align: center;
  border-top: 1px solid var(--line);
}
.final h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 60px;
  letter-spacing: -0.03em;
  line-height: 1.12;
  max-width: 22ch;
  margin: 0 auto 36px;
}
.final h2 em {
  font-style: italic;
  color: var(--green-2);
}

/* ---------- Footer ---------- */
footer.bottom {
  padding: 40px 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-3);
}
footer.bottom em {
  font-family: var(--serif);
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink-2);
  font-size: 13px;
}
footer.bottom a {
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.15s,
    color 0.15s;
}
footer.bottom a:hover {
  color: var(--hug);
  border-bottom-color: var(--hug);
}

/* ---------- Mobile ---------- */
@media (max-width: 980px) {
  .hero-timeline {
    max-width: 760px;
  }
  .timeline-step {
    flex-basis: 220px;
  }
}
@media (max-width: 820px) {
  .app {
    padding: 0 24px;
  }
  header.top {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 28px 0 22px;
  }
  header .nav {
    width: 100%;
    gap: 16px;
    flex-wrap: wrap;
  }
  header .nav a.cta {
    padding: 9px 14px;
    font-size: 10px;
    letter-spacing: 0.14em;
  }
  .hero-timeline {
    padding: 18px;
  }
  .timeline-card h3 {
    font-size: 18px;
  }
  .timeline-media {
    height: 78px;
  }
  .timeline-step {
    flex-basis: 200px;
  }
  .hero h1 {
    font-size: 44px;
    white-space: normal;
  }
  .hero .badge {
    padding: 8px 14px;
  }
  .hero .badge strong {
    font-size: 26px;
  }
  .hero .badge .badge-label {
    font-size: 10px;
    letter-spacing: 0.1em;
  }
  .hero-recent h3 {
    font-size: 28px;
  }
  .hero-recent .ex-grid {
    grid-template-columns: 1fr;
  }
  .examples h2,
  .how h2,
  .accepted-models h2,
  .reviews h2,
  .literature h2 {
    font-size: 30px;
  }
  .final h2 {
    font-size: 36px;
  }
  .ex-grid,
  .how-grid,
  .reviews-grid,
  .lit-grid {
    grid-template-columns: 1fr;
  }
  .corpus-shell {
    grid-template-columns: 1fr;
  }
  .corpus-plot {
    min-height: 290px;
  }
  .brand .mark {
    font-size: 24px;
  }
  .brand .mark .product {
    display: none;
  }
  .hero {
    padding: 52px 0 64px;
  }
  .extension-card h3 {
    font-size: 26px;
  }
  .lit-title {
    font-size: 24px;
  }
  .eligible-model {
    flex-basis: 220px;
  }
}