/* The Brains: design system. Tokens follow nevo.md (docs/ui-research.md §1, §5). */

:root {
  --ink: #4a4a4a;
  --ink-strong: #2b2b2b;
  --ink-muted: #6e6e6e;
  --ink-faint: #b7b7b7;
  --hairline: #e8e8e8;
  --shade: #f0f0f0;
  --bg: #ffffff;
  --band: #f7f7f7;
  --surface: #ffffff;
  --pink: #ff0083;
  --pink-text: #d4006c;
  --pink-deep: #cc0068;
  --pink-wash: #ffe8f3;
  --pink-wash-strong: #ffd6ea;
  --btn: #202020;
  --btn-hover: #000000;
  --btn-ink: #ffffff;
  --portrait-bg: #ffd6ea;
  --danger: #c4231b;
  --danger-wash: #fdeceb;
  --portrait-filter: grayscale(1) contrast(1.08) brightness(1.03);
  --backdrop: rgba(20, 20, 20, 0.32);
  --shadow-card: 0 0.875rem 2.5rem -1.25rem rgba(74, 74, 74, 0.45);
  --shadow-pop: 0 14px 34px -14px rgba(0, 0, 0, 0.28), 0 0 0 1px var(--hairline);

  --font-serif: "Merriweather", Georgia, "Times New Roman", serif;
  --font-sans: "Lato", "Helvetica Neue", Arial, sans-serif;
  --font-hand: "Caveat", "Bradley Hand", cursive;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);

  --page: 75rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --header-h: 64px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #d9d9d9;
    --ink-strong: #f2f2f2;
    --ink-muted: #a0a0a0;
    --ink-faint: #5c5c5c;
    --hairline: #2b2b2b;
    --shade: #232323;
    --bg: #131313;
    --band: #1a1a1a;
    --surface: #1b1b1b;
    --pink: #ff2b93;
    --pink-text: #ff6db3;
    --pink-deep: #ff4fa5;
    --pink-wash: #33121f;
    --pink-wash-strong: #4a1730;
    --btn: #f2f2f2;
    --btn-hover: #ffffff;
    --btn-ink: #131313;
    --portrait-bg: #f3c4db;
    --danger: #ff8a80;
    --danger-wash: #3a1614;
    --portrait-filter: grayscale(1) contrast(1.08) brightness(0.92);
    --backdrop: rgba(0, 0, 0, 0.55);
    --shadow-card: 0 0.875rem 2.5rem -1.25rem rgba(0, 0, 0, 0.8);
    --shadow-pop: 0 14px 34px -14px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--hairline);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #d9d9d9;
  --ink-strong: #f2f2f2;
  --ink-muted: #a0a0a0;
  --ink-faint: #5c5c5c;
  --hairline: #2b2b2b;
  --shade: #232323;
  --bg: #131313;
  --band: #1a1a1a;
  --surface: #1b1b1b;
  --pink: #ff2b93;
  --pink-text: #ff6db3;
  --pink-deep: #ff4fa5;
  --pink-wash: #33121f;
  --pink-wash-strong: #4a1730;
  --btn: #f2f2f2;
  --btn-hover: #ffffff;
  --btn-ink: #131313;
  --portrait-bg: #f3c4db;
  --danger: #ff8a80;
  --danger-wash: #3a1614;
  --portrait-filter: grayscale(1) contrast(1.08) brightness(0.92);
  --backdrop: rgba(0, 0, 0, 0.55);
  --shadow-card: 0 0.875rem 2.5rem -1.25rem rgba(0, 0, 0, 0.8);
  --shadow-pop: 0 14px 34px -14px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--hairline);
  color-scheme: dark;
}

/* ---------- Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 24px);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
}
button,
input,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
h1,
h2,
h3,
p {
  margin: 0;
}
:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 2px;
}
::selection {
  background: var(--pink-wash-strong);
  color: var(--ink-strong);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 100;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--btn);
  color: var(--btn-ink);
  font-weight: 700;
  text-decoration: none;
  transition: top 160ms var(--ease-out);
}
.skip:focus {
  top: 12px;
}
.wrap {
  max-width: var(--page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.icon {
  width: 1em;
  height: 1em;
  flex: none;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon.fill {
  fill: currentColor;
  stroke: none;
}
.tnum {
  font-variant-numeric: tabular-nums;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 999px;
  font: 700 14.5px/1 var(--font-sans);
  text-decoration: none;
  white-space: nowrap;
  transition:
    transform 160ms var(--ease-out),
    background-color 150ms ease,
    border-color 150ms ease,
    color 150ms ease;
}
.btn:active {
  transform: scale(0.97);
}
.btn-primary {
  background: var(--btn);
  color: var(--btn-ink);
}
.btn-ghost {
  background: var(--surface);
  border-color: var(--hairline);
  color: var(--ink-strong);
}
.btn-block {
  width: 100%;
  height: 46px;
}
@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover {
    background: var(--btn-hover);
  }
  .btn-ghost:hover {
    border-color: var(--ink-faint);
  }
}
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-size: 18px;
  transition:
    transform 160ms var(--ease-out),
    background-color 150ms ease;
}
.icon-btn:active {
  transform: scale(0.94);
}
@media (hover: hover) and (pointer: fine) {
  .icon-btn:hover {
    background: var(--shade);
  }
}

/* ---------- Header / footer ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--hairline);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 17px/1 var(--font-serif);
  color: var(--ink-strong);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.logo svg {
  width: 26px;
  height: 26px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav a.nav-link {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  transition: background-color 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  .nav a.nav-link:hover {
    background: var(--shade);
  }
}
@media (max-width: 560px) {
  .nav a.nav-link.optional {
    display: none;
  }
}
.theme-toggle .sun {
  display: none;
}
:root[data-theme="dark"] .theme-toggle .sun {
  display: block;
}
:root[data-theme="dark"] .theme-toggle .moon {
  display: none;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .sun {
    display: block;
  }
  :root:not([data-theme="light"]) .theme-toggle .moon {
    display: none;
  }
}
.site-footer {
  margin-top: 96px;
  border-top: 1px solid var(--hairline);
  padding-block: 28px 40px;
  font-size: 13.5px;
  color: var(--ink-muted);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
}
.site-footer a {
  color: var(--ink);
  text-decoration-color: var(--ink-faint);
  text-underline-offset: 3px;
}

/* ---------- Portrait (grayscale photo + pink duotone) ---------- */
.portrait {
  position: relative;
  flex: none;
  width: var(--size, 48px);
  height: var(--size, 48px);
  border-radius: 50%;
  overflow: hidden;
  background: var(--portrait-bg);
  isolation: isolate;
}
.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: var(--portrait-filter);
  mix-blend-mode: multiply;
}
.portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
  pointer-events: none;
}
.portrait .initials {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  font: 400 calc(var(--size, 48px) * 0.36) / 1 var(--font-serif);
  color: var(--pink-deep);
}

/* ---------- Chips ---------- */
.chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 2px;
  margin: -2px;
}
.chips::-webkit-scrollbar {
  display: none;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: none;
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: 700 14px/1 var(--font-sans);
  white-space: nowrap;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    border-color 150ms ease,
    transform 160ms var(--ease-out);
}
.chip:active {
  transform: scale(0.97);
}
.chip .n {
  font-weight: 400;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}
.chip[aria-pressed="true"],
.chip[aria-selected="true"] {
  background: var(--btn);
  border-color: var(--btn);
  color: var(--btn-ink);
}
.chip[aria-pressed="true"] .n,
.chip[aria-selected="true"] .n {
  color: color-mix(in srgb, var(--btn-ink) 62%, transparent);
}
@media (hover: hover) and (pointer: fine) {
  .chip:not([aria-pressed="true"]):not([aria-selected="true"]):hover {
    border-color: var(--ink-faint);
  }
}

/* ---------- Home: hero + search ---------- */
.hero {
  position: relative;
  padding-block: clamp(3rem, 9vw, 6.5rem) 0;
  text-align: center;
}
.hero h1 {
  max-width: 15ch;
  margin-inline: auto;
  font: 400 clamp(2.15rem, 1.4rem + 3vw, 3.4rem) / 1.16 var(--font-serif);
  letter-spacing: -0.015em;
  color: var(--ink-strong);
  text-wrap: balance;
}
.hero .sub {
  max-width: 36rem;
  margin: 20px auto 0;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  color: var(--ink);
  text-wrap: pretty;
}
.hero-faces {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  font-size: 14px;
  color: var(--ink-muted);
}
.hero-faces .stack {
  display: flex;
}
.hero-faces .stack .portrait {
  --size: 30px;
  box-shadow: 0 0 0 2px var(--bg);
}
.hero-faces .stack .portrait + .portrait {
  margin-left: -9px;
}
.search {
  position: relative;
  max-width: 40rem;
  margin: 30px auto 0;
}
.search .icon.lead {
  position: absolute;
  left: 20px;
  top: 50%;
  translate: 0 -50%;
  font-size: 19px;
  color: var(--ink-muted);
  pointer-events: none;
}
.search input {
  width: 100%;
  height: 58px;
  padding: 0 56px 0 52px;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
  font-size: 17px;
  color: var(--ink-strong);
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease;
}
.search input::placeholder {
  color: var(--ink-muted);
}
.search input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--pink) 55%, var(--hairline));
  box-shadow:
    var(--shadow-card),
    0 0 0 4px var(--pink-wash);
}
.search input::-webkit-search-cancel-button {
  display: none;
}
.search .trail {
  position: absolute;
  right: 12px;
  top: 50%;
  translate: 0 -50%;
  display: grid;
}
.search .trail > * {
  grid-area: 1 / 1;
  transition:
    opacity 150ms ease,
    scale 150ms var(--ease-out);
}
.search[data-has-value="true"] .kbd-hint,
.search:not([data-has-value="true"]) .clear {
  opacity: 0;
  scale: 0.9;
  pointer-events: none;
}
kbd,
.kbd-hint {
  display: inline-grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  padding: 0 7px;
  border: 1px solid var(--hairline);
  border-bottom-width: 2px;
  border-radius: 7px;
  font: 600 12.5px/1 var(--font-mono);
  color: var(--ink-muted);
  background: var(--band);
  align-self: center;
  justify-self: end;
}
.hand-note {
  position: absolute;
  left: calc(100% + 18px);
  top: -34px;
  width: 9.5rem;
  font: 600 21px/1.05 var(--font-hand);
  color: var(--pink-text);
  text-align: left;
  transform: rotate(-4deg);
  pointer-events: none;
}
.hand-note svg {
  display: block;
  width: 54px;
  height: 40px;
  margin: 4px 0 0 -6px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
}
@media (max-width: 1060px) {
  .hand-note {
    display: none;
  }
}

/* ---------- Directory ---------- */
.directory {
  margin-top: clamp(3rem, 7vw, 4.5rem);
}
.dir-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hairline);
}
.dir-head .chips {
  flex: 1 1 auto;
  min-width: 0;
}
.dir-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  color: var(--ink-muted);
}
.select {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.select select {
  appearance: none;
  height: 34px;
  padding: 0 34px 0 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-strong);
  font: 700 14px/1 var(--font-sans);
  cursor: pointer;
}
.select .icon {
  position: absolute;
  right: 12px;
  font-size: 14px;
  color: var(--ink-muted);
  pointer-events: none;
}
.rows {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  column-gap: 3rem;
  margin-top: 6px;
}
@media (min-width: 900px) {
  .rows {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.row {
  position: relative;
  display: grid;
  grid-template-columns: 1.75rem auto minmax(0, 1fr) 18px;
  align-items: center;
  gap: 0 14px;
  padding: 14px 12px;
  margin-inline: -12px;
  border-radius: 14px;
  color: inherit;
  text-decoration: none;
  transition: background-color 150ms ease;
}
.row::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 1px;
  background: var(--hairline);
}
.row[hidden] {
  display: none;
}
.row .portrait {
  --size: 52px;
}
.rank {
  font: 500 12.5px/1 var(--font-mono);
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}
.row-main {
  display: block;
  min-width: 0;
}
.row-name {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font: 400 17.5px/1.3 var(--font-serif);
  color: var(--ink-strong);
}
.row-tagline {
  display: block;
  margin-top: 3px;
  font-size: 14.5px;
  line-height: 1.45;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-wrap: pretty;
}
.row-tagline.building {
  font-style: italic;
  color: var(--ink-muted);
}
.swap {
  display: grid;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.45;
}
.swap > * {
  grid-area: 1 / 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition:
    opacity 200ms var(--ease-out),
    transform 200ms var(--ease-out);
}
.row-meta {
  color: var(--ink-muted);
}
.row-ask {
  color: var(--pink-text);
  opacity: 0;
  transform: translateY(5px);
}
.row-ask b {
  font-weight: 700;
}
.row .chev {
  font-size: 17px;
  color: var(--ink-faint);
  transition:
    transform 200ms var(--ease-out),
    color 150ms ease;
}
@media (hover: hover) and (pointer: fine) {
  .row:hover {
    background: var(--band);
  }
  .row:hover::after {
    opacity: 0;
  }
  .row:hover .row-meta.has-ask,
  .row:focus-visible .row-meta.has-ask {
    opacity: 0;
    transform: translateY(-5px);
  }
  .row:hover .row-ask,
  .row:focus-visible .row-ask {
    opacity: 1;
    transform: none;
  }
  .row:hover .chev {
    color: var(--ink-strong);
    transform: translateX(2px);
  }
}
.row:focus-visible {
  outline-offset: -2px;
}
@media (max-width: 560px) {
  .row {
    grid-template-columns: auto minmax(0, 1fr) 18px;
  }
  .row .rank {
    display: none;
  }
  .dir-head .chips {
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
    mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
    padding-right: 24px;
  }
}
@media (hover: none) {
  .search .kbd-hint {
    display: none;
  }
}
.row mark,
.src mark {
  background: var(--pink-wash-strong);
  color: inherit;
  border-radius: 3px;
  padding: 0 1px;
}
.rows.first-paint .row {
  animation: row-in 420ms var(--ease-out) both;
  animation-delay: calc(var(--i, 0) * 35ms);
}
@keyframes row-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}
.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pink);
  vertical-align: 0.1em;
  margin-right: 6px;
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  50% {
    opacity: 0.3;
  }
}
.result-line {
  min-height: 20px;
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--ink-muted);
}

/* Empty state + request/claim tiles */
.empty {
  padding: 40px 0 16px;
  text-align: center;
}
.empty h2 {
  font: 400 clamp(1.35rem, 1.2rem + 0.6vw, 1.6rem) / 1.3 var(--font-serif);
  color: var(--ink-strong);
}
.empty p {
  margin-top: 8px;
  color: var(--ink-muted);
}
.empty .chips {
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 18px;
}
.empty .btn {
  margin-top: 22px;
}
.tiles {
  display: grid;
  gap: 14px;
  margin-top: 36px;
}
@media (min-width: 700px) {
  .tiles {
    grid-template-columns: 1fr 1fr;
  }
}
.tile {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 16px;
  padding: 20px 22px;
  border: 1px dashed color-mix(in srgb, var(--ink-faint) 70%, transparent);
  border-radius: 16px;
  color: inherit;
  text-decoration: none;
  transition:
    border-color 150ms ease,
    background-color 150ms ease;
}
.tile h3 {
  font: 400 18px/1.35 var(--font-serif);
  color: var(--ink-strong);
}
.tile p {
  grid-column: 1;
  font-size: 14px;
  color: var(--ink-muted);
}
.tile .go {
  grid-row: 1 / span 2;
  grid-column: 2;
  font-size: 18px;
  color: var(--pink-text);
  transition: transform 200ms var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .tile:hover {
    border-color: var(--pink);
    background: color-mix(in srgb, var(--pink-wash) 55%, transparent);
  }
  .tile:hover .go {
    transform: translate(2px, -2px);
  }
}

/* ---------- Brain page ---------- */
.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 14px;
  color: var(--ink-muted);
}
.crumbs a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-muted);
  text-decoration: none;
}
.crumbs a:hover {
  color: var(--ink-strong);
}
.brain-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  margin-top: 28px;
}
@media (min-width: 1024px) {
  .brain-grid {
    grid-template-columns: minmax(0, 1fr) 23rem;
    gap: 4.5rem;
  }
}
.rail {
  display: none;
}
@media (min-width: 1024px) {
  .rail {
    display: block;
  }
  .rail .install {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    max-height: calc(100vh - var(--header-h) - 40px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
  }
}
.identity {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 18px 26px;
}
.identity .portrait {
  --size: clamp(84px, 14vw, 120px);
}
.brain-name {
  font: 400 clamp(2rem, 1.45rem + 2.2vw, 2.85rem) / 1.12 var(--font-serif);
  letter-spacing: -0.015em;
  color: var(--ink-strong);
  text-wrap: balance;
}
.role-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-top: 10px;
  font-size: 15px;
  color: var(--ink-muted);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 10px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  font: 700 12px/1 var(--font-sans);
  color: var(--ink-muted);
  cursor: help;
}
.badge .icon {
  font-size: 13px;
}
.badge.building {
  border-color: var(--pink-wash-strong);
  background: var(--pink-wash);
  color: var(--pink-text);
}
.tagline-lg {
  max-width: 40rem;
  margin-top: 26px;
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem);
  line-height: 1.55;
  color: var(--ink-strong);
  text-wrap: pretty;
}
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
  font-size: 14px;
}
.links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink);
  text-decoration: none;
  transition: color 150ms ease;
}
.links a:hover {
  color: var(--pink-text);
}
.links .muted {
  color: var(--ink-muted);
}
.pullquote {
  margin: 34px 0 0;
  padding: 2px 0 2px 22px;
  border-left: 2px solid var(--pink);
}
.pullquote blockquote {
  margin: 0;
  font: italic 400 clamp(1.2rem, 1.05rem + 0.6vw, 1.45rem) / 1.55 var(--font-serif);
  color: var(--ink-strong);
  text-wrap: pretty;
}
.pullquote figcaption {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-muted);
}
.pullquote figcaption a {
  color: var(--ink);
  text-decoration-color: var(--ink-faint);
  text-underline-offset: 3px;
}
.receipt {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8.25rem, 1fr));
  gap: 1px;
  margin-top: 32px;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  overflow: hidden;
  background: var(--hairline);
}
.stat {
  padding: 15px 18px 14px;
  background: var(--band);
}
.stat b {
  display: block;
  font: 700 clamp(1.3rem, 1.15rem + 0.5vw, 1.55rem) / 1.2 var(--font-sans);
  letter-spacing: -0.01em;
  color: var(--ink-strong);
  font-variant-numeric: tabular-nums;
}
.stat span {
  font-size: 13px;
  color: var(--ink-muted);
}
.section {
  margin-top: clamp(3.5rem, 7vw, 4.75rem);
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-bottom: 20px;
}
.section-head h2 {
  font: 400 clamp(1.45rem, 1.3rem + 0.5vw, 1.7rem) / 1.25 var(--font-serif);
  color: var(--ink-strong);
}
.section-head p {
  font-size: 14px;
  color: var(--ink-muted);
}
.section-head .hand {
  font: 600 20px/1 var(--font-hand);
  color: var(--pink-text);
  transform: rotate(-3deg);
}
.topics {
  display: grid;
  gap: 14px;
}
@media (min-width: 640px) {
  .topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.topic {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 20px 16px;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--surface);
}
.topic h3 {
  font: 700 16px/1.35 var(--font-sans);
  color: var(--ink-strong);
}
.topic p {
  font-size: 15px;
  line-height: 1.55;
  text-wrap: pretty;
}
.topic .q {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--hairline);
  font-size: 14px;
  color: var(--ink-muted);
}
.kicker {
  display: inline-block;
  margin-right: 6px;
  font: 700 11px/1 var(--font-sans);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--pink-text);
}
.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: p;
  border-top: 1px solid var(--hairline);
}
.principles li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline);
  counter-increment: p;
}
.principles li::before {
  content: counter(p, decimal-leading-zero);
  padding-top: 5px;
  font: 500 12.5px/1 var(--font-mono);
  color: var(--ink-faint);
}
.principles p {
  font: 400 clamp(1rem, 0.96rem + 0.2vw, 1.1rem) / 1.65 var(--font-serif);
  color: var(--ink-strong);
  text-wrap: pretty;
}
.try {
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: var(--surface);
  overflow: hidden;
}
.try-tabs {
  display: flex;
  gap: 6px;
  padding: 12px;
  border-bottom: 1px solid var(--hairline);
  background: var(--band);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 36px), transparent);
  mask-image: linear-gradient(90deg, #000 calc(100% - 36px), transparent);
}
.try-tabs .chip {
  max-width: 22rem;
  height: 32px;
  font-size: 13.5px;
}
.try-tabs .chip span {
  overflow: hidden;
  text-overflow: ellipsis;
}
.transcript {
  display: grid;
  gap: 18px;
  padding: 22px clamp(16px, 3vw, 26px) 24px;
}
.turn {
  display: grid;
  grid-template-columns: 4.25rem minmax(0, 1fr);
  gap: 4px 12px;
}
.who {
  padding-top: 3px;
  font: 600 12px/1.4 var(--font-mono);
  color: var(--ink-muted);
}
.who.brain {
  color: var(--pink-text);
}
.turn .question {
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-strong);
}
.answer {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.6;
}
@media (max-width: 520px) {
  .turn {
    grid-template-columns: minmax(0, 1fr);
  }
}
.swap-in-right {
  animation: in-right 220ms var(--ease-out) both;
}
.swap-in-left {
  animation: in-left 220ms var(--ease-out) both;
}
@keyframes in-right {
  from {
    opacity: 0;
    transform: translateX(10px);
  }
}
@keyframes in-left {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
}
.building-card {
  display: grid;
  gap: 8px;
  padding: 24px;
  border: 1px dashed var(--pink-wash-strong);
  border-radius: 16px;
  background: color-mix(in srgb, var(--pink-wash) 45%, transparent);
}
.building-card h2 {
  font: 400 20px/1.35 var(--font-serif);
  color: var(--ink-strong);
}
.building-card p {
  font-size: 15px;
  color: var(--ink);
}

/* Citation pills + tooltip */
.cite {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 19px;
  margin-left: 3px;
  padding: 0 5px;
  border-radius: 6px;
  background: var(--pink-wash);
  color: var(--pink-text);
  font: 700 11px/1 var(--font-mono);
  text-decoration: none;
  vertical-align: 0.12em;
  transition:
    background-color 150ms ease,
    color 150ms ease;
}
.cite::before {
  content: "";
  position: absolute;
  inset: -8px -3px;
}
@media (hover: hover) and (pointer: fine) {
  .cite:hover {
    background: var(--pink);
    color: #fff;
  }
}
.cites {
  white-space: nowrap;
}
.tip {
  position: fixed;
  z-index: 60;
  max-width: min(21rem, calc(100vw - 24px));
  padding: 10px 13px 11px;
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-pop);
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px) scale(0.97);
  transform-origin: 50% 100%;
  transition:
    opacity 140ms var(--ease-out),
    transform 140ms var(--ease-out);
}
.tip.below {
  transform-origin: 50% 0%;
  transform: translateY(-4px) scale(0.97);
}
.tip.on {
  opacity: 1;
  transform: none;
}
.tip.instant {
  transition-duration: 0ms;
}
.tip .tip-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 3px;
  font-size: 11.5px;
  color: var(--ink-muted);
}
.tip .tip-title {
  font-weight: 700;
  color: var(--ink-strong);
}

/* Sources index */
.src-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}
.src-toolbar .chips {
  flex: 1 1 24rem;
  min-width: 0;
}
.mini-search {
  position: relative;
  flex: 0 1 17rem;
  min-width: 12rem;
}
.mini-search .icon {
  position: absolute;
  left: 13px;
  top: 50%;
  translate: 0 -50%;
  font-size: 15px;
  color: var(--ink-muted);
  pointer-events: none;
}
.mini-search input {
  width: 100%;
  height: 36px;
  padding: 0 14px 0 36px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--surface);
  font-size: 14px;
  color: var(--ink-strong);
  transition:
    border-color 150ms ease,
    box-shadow 150ms ease;
}
.mini-search input:focus {
  outline: none;
  border-color: color-mix(in srgb, var(--pink) 55%, var(--hairline));
  box-shadow: 0 0 0 3px var(--pink-wash);
}
@media (max-width: 560px) {
  .mini-search {
    flex-basis: 100%;
  }
  .src-toolbar .chips {
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
    mask-image: linear-gradient(90deg, #000 calc(100% - 28px), transparent);
    padding-right: 24px;
  }
}
.src-count {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-muted);
}
.src-year {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline);
}
.src-year h3 {
  position: sticky;
  top: calc(var(--header-h) + 12px);
  align-self: start;
  padding-top: 9px;
  font: 600 13px/1 var(--font-mono);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}
@media (max-width: 560px) {
  .src-year {
    grid-template-columns: minmax(0, 1fr);
  }
  .src-year h3 {
    position: static;
    padding: 0 0 6px;
  }
}
.src-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.src {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 12px;
  padding: 8px 10px;
  margin-inline: -10px;
  border-radius: 10px;
  scroll-margin-top: calc(var(--header-h) + 80px);
}
.src.flash {
  animation: flash 2.4s var(--ease-out);
}
@keyframes flash {
  0%,
  35% {
    background: var(--pink-wash);
  }
  100% {
    background: transparent;
  }
}
.src .ti {
  margin-top: 3px;
  font-size: 16px;
  color: var(--ink-muted);
}
.src .title {
  color: var(--ink-strong);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  text-underline-offset: 3px;
  text-decoration-color: var(--pink);
}
.src .title.post {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.src .title:hover {
  text-decoration-line: underline;
}
.src .title .ext {
  display: inline-block;
  margin-left: 4px;
  font-size: 12px;
  color: var(--ink-faint);
  vertical-align: 0.05em;
}
.src .meta {
  margin-top: 1px;
  font-size: 12.5px;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}
.src-more {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}
.src-empty {
  padding: 28px 0 8px;
  color: var(--ink-muted);
  font-size: 15px;
}

/* ---------- Install panel ---------- */
.install {
  padding: 22px;
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow-card);
}
.install.flat {
  padding: 0;
  border: 0;
  box-shadow: none;
  background: transparent;
}
.install-head h2 {
  font: 400 20px/1.3 var(--font-serif);
  color: var(--ink-strong);
}
.install-head p {
  margin-top: 4px;
  font-size: 13.5px;
  color: var(--ink-muted);
}
.install .tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 18px 0 16px;
}
.install .tabs .chip {
  height: 32px;
  padding: 0 12px;
  font-size: 13.5px;
}
.tab-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}
.tab-panel > * {
  min-width: 0;
}
.tab-panel .lead {
  font-size: 14px;
  color: var(--ink);
}
.code {
  position: relative;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--band);
}
.code pre {
  margin: 0;
  padding: 12px 82px 12px 14px;
  overflow-x: auto;
  font: 12.5px/1.6 var(--font-mono);
  color: var(--ink-strong);
  white-space: pre;
  scrollbar-width: thin;
}
.code.wrap-lines pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.copy {
  position: absolute;
  top: 7px;
  right: 7px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px 0 8px;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  background: var(--surface);
  font: 700 12.5px/1 var(--font-sans);
  color: var(--ink-strong);
  transition:
    transform 160ms var(--ease-out),
    border-color 150ms ease;
}
.copy:active {
  transform: scale(0.95);
}
@media (hover: hover) and (pointer: fine) {
  .copy:hover {
    border-color: var(--ink-faint);
  }
}
.copy .glyph {
  display: grid;
  font-size: 14px;
}
.copy .glyph svg {
  grid-area: 1 / 1;
  transition:
    opacity 160ms ease,
    filter 160ms ease,
    transform 160ms var(--ease-out);
}
.copy .glyph .ok {
  opacity: 0;
  filter: blur(2px);
  transform: scale(0.8);
  color: var(--pink-text);
}
.copy[data-copied="true"] .glyph .ok {
  opacity: 1;
  filter: none;
  transform: none;
}
.copy[data-copied="true"] .glyph .base {
  opacity: 0;
  filter: blur(2px);
  transform: scale(0.8);
}
.copy .label {
  display: grid;
}
.copy .label span {
  grid-area: 1 / 1;
  transition:
    opacity 160ms ease,
    filter 160ms ease;
}
.copy .label .done {
  opacity: 0;
  filter: blur(2px);
}
.copy[data-copied="true"] .label .done {
  opacity: 1;
  filter: none;
}
.copy[data-copied="true"] .label .idle {
  opacity: 0;
  filter: blur(2px);
}
.steps {
  display: grid;
  gap: 9px;
  margin: 2px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: s;
}
.steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  font-size: 14px;
  line-height: 1.5;
  counter-increment: s;
}
.steps li::before {
  content: counter(s) "/" attr(data-total);
  padding-top: 2px;
  font: 700 11.5px/1.5 var(--font-mono);
  color: var(--pink-text);
}
.steps b {
  color: var(--ink-strong);
}
.note {
  display: flex;
  gap: 9px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--band);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-muted);
}
.note .icon {
  margin-top: 2px;
  font-size: 14px;
}
.or {
  font-size: 13px;
  color: var(--ink-muted);
}
.tools {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--hairline);
}
.tools h3 {
  font: 700 11px/1 var(--font-sans);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.tools ul {
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.tools code {
  font: 600 12.5px/1.4 var(--font-mono);
  color: var(--ink-strong);
}
.tools .ro {
  margin-left: 6px;
  font-size: 11px;
  color: var(--ink-muted);
}
.tools p {
  margin-top: 2px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink-muted);
}
.install-foot {
  margin-top: 16px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-muted);
}
.install-foot a {
  color: var(--ink);
  text-underline-offset: 3px;
  text-decoration-color: var(--ink-faint);
}

/* Mobile install bar + bottom sheet */
.install-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px var(--gutter) calc(12px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-top: 1px solid var(--hairline);
}
.install-bar .portrait {
  --size: 38px;
}
.install-bar .btn {
  flex: 1;
  height: 46px;
}
@media (min-width: 1024px) {
  .install-bar {
    display: none;
  }
}
@media (max-width: 1023.98px) {
  body.has-bar {
    padding-bottom: 84px;
  }
}
.sheet {
  position: fixed;
  inset: auto 0 0 0;
  width: 100%;
  max-width: 100%;
  max-height: min(88vh, 100% - 24px);
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 22px 22px 0 0;
  background: var(--surface);
  color: var(--ink);
  overflow-y: auto;
  overscroll-behavior: contain;
  transform: translateY(100%);
  transition: transform 300ms var(--ease-drawer);
}
.sheet.open {
  transform: none;
}
.sheet.closing {
  transition-duration: 220ms;
}
.sheet::backdrop {
  background: var(--backdrop);
  opacity: 0;
  transition: opacity 300ms var(--ease-drawer);
}
.sheet.open::backdrop {
  opacity: 1;
}
.sheet-top {
  position: sticky;
  top: 0;
  z-index: 1;
  display: grid;
  justify-items: center;
  padding: 8px 0 0;
  background: var(--surface);
}
.grabber {
  width: 38px;
  height: 4px;
  border-radius: 999px;
  background: var(--ink-faint);
}
.sheet-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 44px;
  height: 44px;
}
.sheet-body {
  padding: 14px var(--gutter) calc(24px + env(safe-area-inset-bottom));
}

/* ---------- 404 ---------- */
.notfound {
  padding-block: clamp(4rem, 14vw, 9rem);
  text-align: center;
}
.notfound h1 {
  font: 400 clamp(2rem, 1.5rem + 2vw, 2.8rem) / 1.2 var(--font-serif);
  color: var(--ink-strong);
}
.notfound p {
  margin-top: 12px;
  color: var(--ink-muted);
}
.notfound .actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 26px;
  flex-wrap: wrap;
}

/* Loading skeleton (matches the identity block) */
.skeleton {
  border-radius: 10px;
  background: var(--shade);
  animation: pulse 1.6s ease-in-out infinite;
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .rows.first-paint .row,
  .swap-in-right,
  .swap-in-left,
  .src.flash,
  .dot,
  .skeleton {
    animation: none;
  }
  .src.flash {
    background: var(--pink-wash);
  }
  .sheet,
  .sheet::backdrop,
  .tip,
  .row-ask,
  .swap > *,
  .row .chev,
  .tile .go,
  .copy .glyph svg,
  .copy .label span,
  .btn,
  .chip,
  .icon-btn,
  .copy,
  .skip {
    transition: none;
  }
  .btn:active,
  .chip:active,
  .icon-btn:active,
  .copy:active {
    transform: none;
  }
}

/* Quiet line about the OAuth sign-in the client opens on connect */
.signin-note {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-muted);
}
.signin-note .icon {
  margin-top: 2px;
  font-size: 14px;
}
.tab-panel .steps code,
.tab-panel .or code {
  font: 600 12.5px/1.4 var(--font-mono);
  color: var(--ink-strong);
}

/* ---------- GitHub star pill (header) ---------- */
.gh-star {
  display: inline-flex;
  align-items: stretch;
  height: 34px;
  margin-right: 4px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  overflow: hidden;
  color: var(--ink-strong);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 700;
  transition:
    transform 160ms var(--ease-out),
    border-color 150ms ease;
}
.gh-star > svg {
  width: 16px;
  height: 16px;
  margin: auto 0 auto 12px;
}
.gh-star-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 12px 0 7px;
}
.gh-star-label svg {
  width: 13px;
  height: 13px;
  color: var(--pink);
  transition: transform 220ms var(--ease-out);
}
.gh-star-count {
  display: inline-flex;
  align-items: center;
  padding: 0 12px;
  border-left: 1px solid var(--hairline);
  font: 600 12.5px/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.gh-star-count[hidden] {
  display: none;
}
.gh-star:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 2px;
}
.gh-star:active {
  transform: scale(0.97);
}
@media (hover: hover) and (pointer: fine) {
  .gh-star:hover {
    border-color: var(--pink);
  }
  .gh-star:hover .gh-star-label svg {
    transform: rotate(-12deg) scale(1.12);
  }
}
@media (max-width: 420px) {
  .gh-star-label {
    padding-right: 10px;
  }
  .gh-star-label > :not(svg) {
    display: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .gh-star,
  .gh-star-label svg {
    transition: none;
  }
}