:root {
  --paper: #f4f7fb;
  --surface: #ffffff;
  --surface-strong: #e9eef6;
  --ink: #172033;
  --muted: #5e6a7d;
  --line: #d9e0ea;
  --accent: #087b83;
  --accent-soft: #e4f3f4;
  --signal: #b65b32;
  --header: rgb(244 247 251 / 0.94);
  --shadow: #1720331f;
  --soft-ink: #46546a;
  --variant-bg: #eeefff;
  --variant-ink: #4d56a5;
  --variant-line: #ccd1f7;
  --accent-line: #9cabbf;
  --panel: #f0f4f9;
  --hover-line: #9daabd;
  --preview: #e9eff6;
  --diagram-arena: #eef2f7;
  --diagram-grid: #d5dde8;
  --diagram-border: #c5cfdb;
  --diagram-corners: #aeb9c7;
  --diagram-boss-label: #78503a;
  --diagram-player-label: #087b83;
  --diagram-preview-grid: #ced8e4;
  --font-body:
    Inter, 'Noto Sans Arabic', 'Noto Sans Devanagari', 'Noto Sans Bengali', 'Noto Sans SC',
    'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display:
    Manrope, 'Noto Sans Arabic', 'Noto Sans Devanagari', 'Noto Sans Bengali', 'Noto Sans SC',
    'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-label:
    'IBM Plex Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', 'Noto Sans Arabic',
    'Noto Sans Devanagari', 'Noto Sans Bengali', 'Noto Sans SC', 'Noto Sans JP', monospace;
  --radius: 14px;
  color-scheme: light;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  line-height: 1.65;
  scroll-padding-top: 110px;
}
:root[data-theme='dark'] {
  --paper: #090f1c;
  --surface: #111a2a;
  --surface-strong: #172238;
  --ink: #eff4fb;
  --muted: #a4b0c4;
  --line: #2a3850;
  --accent: #62ddd4;
  --accent-soft: #15303a;
  --signal: #ffa06f;
  --header: rgb(9 15 28 / 0.94);
  --shadow: #00000066;
  --soft-ink: #c1cad8;
  --variant-bg: #202644;
  --variant-ink: #c8cbff;
  --variant-line: #3c4777;
  --accent-line: #5b6d86;
  --panel: #151f32;
  --hover-line: #53647f;
  --preview: #142238;
  --diagram-arena: #131c2b;
  --diagram-grid: #29374d;
  --diagram-border: #3a4b64;
  --diagram-corners: #53647b;
  --diagram-boss-label: #f3bd86;
  --diagram-player-label: #62ddd4;
  --diagram-preview-grid: #34445b;
  color-scheme: dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select {
  font: inherit;
}
button,
a,
input,
summary,
select {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
select:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
p {
  margin: 0 0 1em;
}
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.025em;
}
h2 {
  font-size: 30px;
}
h3 {
  font-size: 18px;
}
svg {
  display: block;
  max-width: 100%;
}
.icon {
  width: 1em;
  height: 1em;
  flex: 0 0 auto;
}
[dir='rtl'] .icon--directional {
  transform: scaleX(-1);
}
a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}
section[id] {
  scroll-margin-top: 104px;
}
.eyebrow {
  display: block;
  font-family: var(--font-label);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.6;
  text-transform: uppercase;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  inset-block-start: 12px;
  inset-inline-start: 20px;
  z-index: 100;
  transform: translateY(-150%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 20px;
}
.skip-link:focus {
  transform: none;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--header);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1440px;
  margin: auto;
  min-height: 80px;
  padding: 0 44px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.045em;
  white-space: nowrap;
}
.brand:hover {
  text-decoration: none;
}
.brand b {
  color: var(--accent);
  font-weight: 700;
}
.brand-mark {
  display: block;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  color: var(--accent);
}
.brand-wordmark {
  display: inline-flex;
  gap: 0.25em;
  align-items: baseline;
}
.logo-mark__frame {
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
}
.logo-mark__boss {
  fill: currentColor;
}
.logo-mark__eye {
  fill: var(--signal);
}
.logo-mark__mouth {
  fill: none;
  stroke: var(--paper);
  stroke-width: 2.5;
  stroke-linecap: round;
}
.header-nav {
  display: flex;
  gap: 28px;
  margin-inline-start: auto;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.header-nav [aria-current='page'] {
  color: var(--accent);
}
.contribute-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  color: var(--muted);
}
.theme-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  padding: 0;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 50%;
}
.theme-toggle:hover {
  border-color: var(--accent);
}
.theme-toggle__icons {
  display: grid;
  place-items: center;
}
.theme-toggle__icons .icon {
  grid-area: 1 / 1;
  width: 17px;
  height: 17px;
}
.theme-toggle__sun,
[data-theme='dark'] .theme-toggle__moon {
  display: none;
}
[data-theme='dark'] .theme-toggle__sun {
  display: block;
}
.language-menu {
  position: relative;
  margin-inline-start: 12px;
  font-size: 13px;
  min-width: 100px;
}
.language-flag {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;
  font-size: 1.1rem;
  line-height: 1;
}
.language-menu summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 7px;
}
.language-menu summary::-webkit-details-marker {
  display: none;
}
.language-menu summary .icon--chevron {
  width: 14px;
  height: 14px;
  margin-inline-start: auto;
  transition: transform 160ms ease;
}
.language-menu[open] summary .icon--chevron {
  transform: rotate(180deg);
}
.language-menu nav {
  position: absolute;
  inset-inline-end: 0;
  top: 48px;
  background: var(--surface);
  width: 220px;
  box-shadow: 0 12px 50px var(--shadow);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
}
.language-menu nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 4px;
}
.language-menu .language-check {
  display: grid;
  place-items: center;
  margin-inline-start: auto;
}
.language-menu .language-check .icon {
  width: 14px;
  height: 14px;
}
.language-menu nav a:hover,
.language-menu nav [aria-current] {
  background: var(--accent-soft);
  text-decoration: none;
}
.lesson-layout {
  max-width: 1440px;
  margin: auto;
  padding: 0 44px;
}
.lesson-main {
  min-width: 0;
  padding-top: 24px;
  padding-bottom: 55px;
}
.lesson-overview-grid {
  display: grid;
  grid-template-columns: minmax(440px, 1fr) minmax(340px, 400px);
  grid-template-areas:
    'overview simulation'
    'checklist simulation';
  align-items: start;
  column-gap: clamp(30px, 4vw, 64px);
  row-gap: 24px;
}
.lesson-hero {
  grid-area: overview;
}
.simulation-section {
  grid-area: simulation;
  width: 100%;
  max-width: 400px;
  justify-self: end;
}
@media (min-width: 961px) {
  .simulation-section {
    height: calc(100vh - 128px);
    height: calc(100svh - 128px);
  }
  .simulation-section .charge-demo,
  .simulation-section .charge-demo__canvas,
  .simulation-section .charge-demo__svg {
    height: 100%;
  }
}
.lesson-category {
  display: inline-block;
  width: auto;
  margin-block-end: 0.72rem;
  color: var(--accent);
  font-family: var(--font-label);
  text-align: right;
  text-decoration: none;
}
.lesson-category:hover,
.lesson-category:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}
.lesson-hero h1 {
  font-size: clamp(42px, 4.4vw, 64px);
  letter-spacing: -0.065em;
  margin: 21px 0 14px;
  overflow-wrap: anywhere;
}
.lesson-title-line {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 21px 0 14px;
}
.lesson-title-line h1 {
  margin: 0;
}
.mechanic-builder-action {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px 18px;
  width: fit-content;
  max-width: 100%;
  padding: 10px 12px;
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.mechanic-builder-action__toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}
.mechanic-builder-action__toggle input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.mechanic-builder-action__check {
  display: grid;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  place-items: center;
  border: 1px solid var(--accent-line);
  border-radius: 5px;
  color: transparent;
  background: var(--paper);
}
.mechanic-builder-action__check .icon {
  width: 13px;
  height: 13px;
}
.mechanic-builder-action__toggle input:checked + .mechanic-builder-action__check {
  border-color: var(--accent);
  color: var(--paper);
  background: var(--accent);
}
.mechanic-builder-action__toggle:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 3px;
}
.mechanic-builder-action > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-inline-start: auto;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
}
.mechanic-builder-action > a .icon {
  width: 14px;
  height: 14px;
}
.lens-chips {
  display: flex;
  flex-basis: 100%;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.lens-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 4px 9px;
  border: 1px solid var(--variant-line);
  border-radius: 999px;
  background: var(--variant-bg);
  color: var(--variant-ink);
  font-size: 10px;
  font-weight: 650;
  line-height: 1.35;
}
.lens-chip:hover,
.lens-chip:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}
.lens-chip__tooltip {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  inset-inline-start: 0;
  width: max-content;
  max-width: min(280px, calc(100vw - 36px));
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink);
  box-shadow: 0 10px 24px var(--shadow);
  color: var(--paper);
  font-size: 11px;
  font-weight: 450;
  line-height: 1.55;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-3px);
  transition:
    opacity 130ms ease,
    transform 130ms ease;
  visibility: hidden;
}
.lens-chip:nth-last-child(-n + 2) .lens-chip__tooltip {
  inset-inline: auto 0;
}
.lens-chip:hover .lens-chip__tooltip,
.lens-chip:focus-visible .lens-chip__tooltip {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}
.mechanic-overview {
  font-size: 17px;
  line-height: 1.7;
  max-width: 66ch;
  color: var(--soft-ink);
  margin: 4px 0 0;
}
.implementation-checklist {
  grid-area: checklist;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.implementation-checklist__intro {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 16px;
}
.implementation-checklist__intro h2 {
  flex: none;
  font-size: 19px;
}
.implementation-checklist__intro p {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
  margin: 0;
}
.checklist-reset {
  flex: none;
  margin-inline-start: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 700;
  line-height: 1.3;
}
.checklist-reset:hover:not(:disabled) {
  border-color: var(--accent);
}
.checklist-reset:disabled {
  cursor: default;
  opacity: 0.38;
}
.checklist-reset .icon {
  width: 11px;
  height: 11px;
}
.implementation-checklist__groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}
.checklist-group {
  min-width: 0;
}
.checklist-group > .eyebrow {
  color: var(--accent);
  font-size: 9px;
}
.checklist-group > h3 {
  font-size: 13px;
  line-height: 1.35;
  margin: 5px 0 8px;
}
.checklist-group > h4 {
  color: var(--muted);
  font-family: var(--font-label);
  font-size: 9px;
  letter-spacing: 0.06em;
  line-height: 1.4;
  margin: 10px 0 4px;
  text-transform: uppercase;
}
.checklist-items {
  list-style: none;
  margin: 0;
  padding: 0;
}
.checklist-item {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  align-items: start;
  gap: 8px;
  border-bottom: 1px solid var(--line);
}
.checklist-item details {
  min-width: 0;
}
.checklist-item summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 12px;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  cursor: pointer;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
  list-style: none;
}
.checklist-item summary::-webkit-details-marker {
  display: none;
}
.checklist-item summary:hover,
.checklist-item summary:focus-visible {
  color: var(--accent);
}
.checklist-checkbox {
  display: grid;
  place-content: center;
  appearance: none;
  width: 11px;
  height: 11px;
  margin: 8px 0 0;
  border: 1px solid var(--accent-line);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}
.checklist-checkbox::before {
  width: 3px;
  height: 6px;
  border: solid var(--paper);
  border-width: 0 1.5px 1.5px 0;
  content: '';
  transform: translateY(-0.5px) rotate(45deg) scale(0);
  transition: transform 120ms ease;
}
.checklist-checkbox:checked {
  border-color: var(--accent);
  background: var(--accent);
}
.checklist-checkbox:checked::before {
  transform: translateY(-0.5px) rotate(45deg) scale(1);
}
.checklist-checkbox:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.checklist-toggle {
  display: grid;
  place-items: center;
  color: var(--muted);
  transition: transform 160ms ease;
}
.checklist-toggle .icon {
  width: 13px;
  height: 13px;
}
.checklist-item details[open] .checklist-toggle {
  transform: rotate(45deg);
}
.checklist-item:has(.checklist-checkbox:checked) summary > span:first-child {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}
.checklist-item p {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
  margin: 1px 18px 9px 0;
}
.content-section {
  border-top: 1px solid var(--line);
  padding-top: 37px;
  margin-top: 43px;
}
.content-section > .eyebrow {
  margin-bottom: 12px;
}
.content-section > h2 {
  margin-bottom: 26px;
}
.example-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.game-example {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 390px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}
.game-example:hover,
.game-example:has(.game-example__link:focus-visible) {
  border-color: var(--accent);
  box-shadow: 0 16px 34px rgb(0 0 0 / 0.14);
  transform: translateY(-2px);
}
.game-example__link {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-width: 0;
  color: inherit;
}
.game-example__link:hover {
  text-decoration: none;
}
.game-example__link:focus-visible {
  outline-offset: -3px;
}
.game-example__media {
  position: relative;
  aspect-ratio: 16 / 9;
  margin: 0;
  overflow: hidden;
  background: var(--surface-strong);
  border-bottom: 1px solid var(--line);
}
.game-example__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.game-example__dimension {
  position: absolute;
  z-index: 1;
  inset-block-start: 12px;
  inset-inline-end: 12px;
  padding: 3px 8px;
  color: var(--paper);
  background: var(--ink);
  border-radius: 999px;
  box-shadow: 0 2px 8px rgb(0 0 0 / 0.22);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.4;
}
.game-example__action {
  position: absolute;
  z-index: 1;
  inset-inline-end: 12px;
  inset-block-end: 12px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgb(255 255 255 / 0.46);
  border-radius: 50%;
  color: #fff;
  background: rgb(9 15 28 / 0.72);
  backdrop-filter: blur(7px);
}
.game-example__action .icon {
  width: 15px;
  height: 15px;
  margin-inline-start: 2px;
}
.game-example__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 18px 21px 20px;
}
.game-example__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.game-example__game {
  flex: 0 1 auto;
  color: var(--muted);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1.5;
  text-align: end;
  text-transform: uppercase;
}
.game-example h4 {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-size: 19px;
}
.game-example p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
  margin: 13px 0 0;
}
.sources > h2 {
  font-size: 24px;
  margin-bottom: 14px;
}
.sources li {
  font-size: 12px;
  color: var(--muted);
}
.sources ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 28px;
  margin-top: 17px;
}
.sources li a {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  line-height: 1.55;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.sources .review-note {
  color: var(--muted);
  font-size: 11px;
  padding-top: 20px;
  margin-top: 25px;
  border-top: 1px dashed var(--line);
  max-width: 730px;
}
.review-note a {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  color: var(--accent);
}
.page-updated {
  color: var(--muted);
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.025em;
  line-height: 1.4;
  margin: 24px 0 0;
}
.page-updated a {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  color: var(--ink);
}
.page-updated .icon {
  width: 0.9em;
  height: 0.9em;
}
.sources li a .icon {
  width: 13px;
  height: 13px;
  margin-top: 0.3em;
}
.site-footer {
  width: min(calc(100% - 88px), 1352px);
  max-width: 1352px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 45px;
  padding: 29px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.site-footer p {
  font-size: 11px;
  margin: 0 0 3px;
}
.footer-repository {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-inline-start: auto;
  font-size: 12px;
}
.footer-brand {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}
.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
}
.legal {
  font-size: 11px;
  color: var(--muted);
}
.footer-copy {
  max-width: 390px;
}
.footer-creator {
  min-width: min(100%, 280px);
}
.site-footer .footer-byline {
  color: var(--ink);
  font-size: 12px;
  margin-bottom: 5px;
}
.footer-byline a,
.footer-contacts a,
.about-contact__links a {
  color: var(--accent);
}
.footer-contacts a,
.about-contact__links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.footer-byline a:hover,
.footer-contacts a:hover,
.about-contact__links a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.footer-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font: 600 10px/1.5 var(--font-label);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.about-main {
  width: min(calc(100% - 88px), 1180px);
  margin: 0 auto;
  padding: clamp(64px, 9vw, 128px) 0 96px;
}
.about-page {
  display: grid;
  gap: clamp(72px, 10vw, 132px);
}
.about-hero {
  max-width: 900px;
}
.about-hero h1 {
  max-width: 820px;
  margin: 12px 0 24px;
  font-size: clamp(48px, 8vw, 100px);
  line-height: 0.96;
  letter-spacing: -0.06em;
}
.about-hero p {
  max-width: 760px;
  margin: 0;
  color: var(--soft-ink);
  font-size: clamp(18px, 2.3vw, 28px);
  line-height: 1.45;
}
.about-motivation {
  display: grid;
  grid-template-columns: minmax(180px, 0.6fr) minmax(0, 1.4fr);
  gap: clamp(28px, 7vw, 100px);
  padding-block: 38px;
  border-block: 1px solid var(--line);
}
.about-motivation h2,
.about-approach h2,
.about-prototype h2,
.about-resources h2,
.about-contact h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.035em;
}
.about-story__copy {
  display: grid;
  gap: 20px;
}
.about-story__copy > p {
  margin: 0;
  color: var(--soft-ink);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.65;
}
.about-story__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.about-story__actions a,
.about-prototype footer a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  padding: 9px 13px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}
.about-story__actions a:hover,
.about-story__actions a:focus-visible,
.about-prototype footer a:hover,
.about-prototype footer a:focus-visible {
  background: var(--accent);
  color: var(--paper);
  text-decoration: none;
}
.about-prototype > header {
  max-width: 850px;
}
.about-prototype > header > .eyebrow,
.about-prototype__comparison .eyebrow,
.about-resources > div > .eyebrow {
  color: var(--accent);
}
.about-prototype h2,
.about-resources h2 {
  margin-top: 10px;
}
.about-prototype > header > p,
.about-resources > div > p {
  margin: 18px 0 0;
  color: var(--soft-ink);
  font-size: 17px;
  line-height: 1.7;
}
.about-prototype__comparison {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 1px;
  margin-top: 32px;
  padding: 1px;
  background: var(--line);
}
.about-prototype__comparison article {
  min-width: 0;
  min-height: 360px;
  padding: clamp(24px, 4vw, 42px);
  background: var(--surface);
}
.about-prototype__before blockquote {
  margin: 64px 0 0;
  color: var(--ink);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 650;
  line-height: 1.24;
  letter-spacing: -0.035em;
}
.about-prototype__after pre {
  max-width: 100%;
  margin: 24px 0 0;
  overflow-x: auto;
  color: var(--soft-ink);
  font: 500 12px/1.7 var(--font-label);
  direction: ltr;
  text-align: start;
  white-space: pre;
}
.about-prototype footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 20px;
}
.about-prototype footer p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}
.about-prototype footer a {
  flex: 0 0 auto;
}
.about-resources {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(250px, 0.85fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: end;
  padding-block: 38px;
  border-block: 1px solid var(--line);
}
.about-resources nav {
  display: grid;
  border-top: 1px solid var(--line);
}
.about-resources nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}
.about-resources nav a:hover,
.about-resources nav a:focus-visible {
  color: var(--ink);
  text-decoration: none;
}
.about-resources nav .icon {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
}
.about-approach > header {
  margin-bottom: 34px;
}
.about-approach h2 {
  margin-top: 8px;
}
.about-principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-inline-start: 1px solid var(--line);
}
.about-principle {
  min-height: 270px;
  padding: clamp(24px, 4vw, 44px);
  border-inline-end: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 56%, transparent);
}
.about-principle > span {
  color: var(--accent);
  font: 600 11px/1 var(--font-label);
  letter-spacing: 0.08em;
}
.about-principle h3 {
  margin: 54px 0 13px;
  font-size: clamp(20px, 2.4vw, 27px);
  line-height: 1.18;
  letter-spacing: -0.025em;
}
.about-principle p {
  max-width: 470px;
  margin: 0;
  color: var(--muted);
}
.about-analytics-note {
  max-width: 780px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.about-contact {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(230px, 0.8fr);
  gap: clamp(40px, 8vw, 120px);
  align-items: end;
  padding: clamp(32px, 6vw, 64px);
  border-radius: var(--radius);
  background: var(--surface-strong);
}
.about-contact h2 {
  margin: 9px 0 18px;
}
.about-contact p {
  max-width: 690px;
  margin: 0;
  color: var(--soft-ink);
  font-size: 17px;
}
.about-contact__links {
  display: grid;
  gap: 11px;
  font: 600 12px/1.45 var(--font-label);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.about-contact__links a {
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.footer-contacts .icon,
.footer-repository .icon,
.about-contact__links .icon {
  width: 0.95em;
  height: 0.95em;
}
.catalog-main {
  max-width: 1220px;
  padding: 12px 28px 24px;
  margin: auto;
}
.catalog-page .header-inner {
  min-height: 64px;
}
.catalog-page .site-footer {
  width: calc(100% - 56px);
  max-width: 1164px;
  margin-inline: auto;
  padding: 16px 0;
}
.catalog-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(410px, 0.95fr);
  align-items: center;
  gap: clamp(36px, 6vw, 76px);
  min-height: min(620px, calc(100vh - 88px));
  padding: clamp(28px, 4vh, 52px) 0;
}
.catalog-hero__copy {
  min-width: 0;
}
.catalog-hero h1 {
  max-width: 680px;
  margin: 15px 0 20px;
  font-size: clamp(40px, 4.4vw, 64px);
  line-height: 1.03;
  letter-spacing: -0.055em;
}
.lead {
  font-size: 20px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 650px;
}
.catalog-hero .lead {
  max-width: 670px;
  margin: 0;
  color: var(--soft-ink);
  font-size: 18px;
  line-height: 1.58;
}
.catalog-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.catalog-hero__primary,
.catalog-hero__secondary {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 17px;
  border: 1px solid var(--accent);
  border-radius: 9px;
  font: 700 13px/1.3 var(--font-label);
  transition:
    color 0.18s,
    background 0.18s,
    transform 0.18s;
}
.catalog-hero__primary {
  color: var(--paper);
  background: var(--accent);
}
.catalog-hero__secondary {
  color: var(--accent);
  background: transparent;
}
.catalog-hero__primary:hover,
.catalog-hero__primary:focus-visible,
.catalog-hero__secondary:hover,
.catalog-hero__secondary:focus-visible {
  transform: translateY(-2px);
  text-decoration: none;
}
.catalog-hero__primary:hover,
.catalog-hero__primary:focus-visible {
  color: var(--paper);
  background: color-mix(in srgb, var(--accent) 84%, var(--ink));
}
.catalog-hero__secondary:hover,
.catalog-hero__secondary:focus-visible {
  background: var(--accent-soft);
}
.catalog-hero__primary .icon {
  width: 16px;
  height: 16px;
}
.catalog-hero__features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
  color: var(--muted);
  font: 600 11px/1.45 var(--font-label);
}
.catalog-hero__features li {
  position: relative;
}
.catalog-hero__features li:not(:first-child)::before {
  position: absolute;
  inset-inline-start: -12px;
  color: var(--accent);
  content: '•';
}
.catalog-hero__lesson {
  display: block;
  min-width: 0;
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: var(--surface);
  box-shadow: 0 24px 70px var(--shadow);
  transition:
    border-color 0.18s,
    transform 0.18s,
    box-shadow 0.18s;
}
.catalog-hero__lesson:hover,
.catalog-hero__lesson:focus-visible {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 30px 80px var(--shadow);
  text-decoration: none;
}
.catalog-hero__lesson-label {
  color: var(--accent);
  font: 700 10px/1.4 var(--font-label);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.catalog-hero__lesson-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 36px;
  gap: 18px;
  align-items: start;
  margin: 11px 0 17px;
}
.catalog-hero__lesson-heading h2 {
  font-size: clamp(25px, 2.7vw, 34px);
}
.catalog-hero__lesson-heading p {
  max-width: 520px;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.catalog-hero__lesson-arrow {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 50%;
  color: var(--accent);
  background: var(--accent-soft);
}
.catalog-hero__preview {
  height: 168px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--preview);
}
.catalog-hero__preview svg {
  width: 100%;
  height: 100%;
}
.catalog-hero__questions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  margin: 14px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--line);
  list-style: none;
  counter-reset: question;
}
.catalog-hero__questions li {
  min-width: 0;
  padding: 11px 10px;
  color: var(--soft-ink);
  background: var(--surface);
  font-size: 10px;
  font-weight: 650;
  line-height: 1.35;
  counter-increment: question;
}
.catalog-hero__questions li::before {
  display: block;
  margin-bottom: 5px;
  color: var(--accent);
  font: 700 9px/1 var(--font-label);
  content: counter(question, decimal-leading-zero);
}
.catalog-workflow {
  padding: clamp(68px, 9vw, 112px) 0;
  border-top: 1px solid var(--line);
}
.catalog-workflow__heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: 9px clamp(36px, 7vw, 90px);
  align-items: end;
  margin-bottom: 34px;
}
.catalog-workflow__heading .eyebrow {
  grid-column: 1 / -1;
}
.catalog-workflow__heading h2 {
  max-width: 620px;
  font-size: clamp(31px, 4vw, 48px);
  line-height: 1.08;
}
.catalog-workflow__heading p {
  max-width: 590px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}
.catalog-workflow__steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  padding: 0;
  margin: 0;
  border-block: 1px solid var(--line);
  list-style: none;
}
.catalog-workflow__steps li {
  min-width: 0;
  min-height: 210px;
  padding: 22px 18px 25px;
  border-inline-start: 1px solid var(--line);
}
.catalog-workflow__steps li:first-child {
  border-inline-start: 0;
}
.catalog-workflow__steps span {
  color: var(--accent);
  font: 700 10px/1.4 var(--font-label);
  letter-spacing: 0.1em;
}
.catalog-workflow__steps h3 {
  margin-top: 50px;
  font-size: clamp(16px, 1.6vw, 20px);
}
.catalog-workflow__steps p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}
.catalog-guides {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: clamp(28px, 5vw, 68px);
  align-items: center;
  margin-bottom: clamp(70px, 9vw, 110px);
  overflow: hidden;
  border-radius: calc(var(--radius) + 6px);
  background: var(--surface-strong);
}
.catalog-guides__art {
  align-self: end;
  margin: 0;
}
.catalog-guides__art img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: contain;
  object-position: center bottom;
}
.catalog-guides__copy {
  max-width: 510px;
  padding: 42px 44px 42px 0;
}
[dir='rtl'] .catalog-guides__copy {
  padding: 42px 0 42px 44px;
}
.catalog-guides__copy h2 {
  margin: 10px 0 15px;
  font-size: clamp(28px, 3.3vw, 42px);
  line-height: 1.1;
}
.catalog-guides__copy > p {
  margin: 0;
  color: var(--soft-ink);
  font-size: 15px;
  line-height: 1.65;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-bottom: 14px;
}
.section-heading h2 {
  font-size: 17px;
}
.count {
  font-family: var(--font-label);
  font-size: 12px;
  color: var(--muted);
}
.catalog-contents__heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-bottom: 18px;
}
.catalog-contents__heading h2 {
  font-size: clamp(25px, 3vw, 36px);
}
.catalog-part-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  border-block: 1px solid var(--line);
  margin-bottom: clamp(38px, 6vw, 72px);
}
.catalog-part-nav__link {
  display: grid;
  gap: 5px;
  min-width: 0;
  padding: 18px 20px 16px;
  border-inline-start: 1px solid var(--line);
  color: var(--ink);
  transition:
    color 0.18s,
    background 0.18s;
}
.catalog-part-nav__link:first-child {
  border-inline-start: 0;
}
.catalog-part-nav__link:hover,
.catalog-part-nav__link:focus-visible {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  text-decoration: none;
}
.catalog-part-nav__number,
.catalog-part__number,
.catalog-lesson__number {
  font-family: var(--font-label);
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.catalog-part-nav__number {
  font-size: 10px;
  letter-spacing: 0.12em;
}
.catalog-part-nav__link strong {
  overflow-wrap: anywhere;
  font-size: 17px;
  line-height: 1.25;
}
.catalog-parts {
  display: grid;
  gap: clamp(48px, 7vw, 84px);
}
.catalog-part {
  scroll-margin-top: 84px;
}
.catalog-part__header {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: baseline;
  gap: 18px;
  padding-bottom: 17px;
  border-bottom: 2px solid var(--ink);
}
.catalog-part__number {
  font-size: 12px;
  letter-spacing: 0.1em;
}
.catalog-part__header h3 {
  font-size: clamp(22px, 2.7vw, 31px);
}
.catalog-lessons {
  list-style: none;
  margin: 0;
  padding: 0;
}
.catalog-lessons li {
  border-bottom: 1px solid var(--line);
}
.catalog-lesson {
  display: grid;
  grid-template-areas: 'number preview copy arrow';
  grid-template-columns: 56px 150px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 18px;
  min-height: 108px;
  padding: 14px 0;
  color: var(--ink);
  transition:
    color 0.18s,
    background 0.18s;
}
.catalog-lesson:hover,
.catalog-lesson:focus-visible {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 5%, transparent);
  text-decoration: none;
}
.catalog-lesson__number {
  grid-area: number;
  align-self: start;
  padding-top: 8px;
  font-size: 13px;
}
.catalog-lesson__copy {
  display: grid;
  grid-area: copy;
  gap: 7px;
  min-width: 0;
}
.catalog-lesson__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}
.catalog-lesson__copy strong {
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.18;
}
.wip-badge {
  display: inline-flex;
  align-items: center;
  width: max-content;
  padding: 3px 7px;
  border: 1px solid color-mix(in srgb, var(--signal) 55%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--signal) 13%, var(--surface));
  color: var(--signal);
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.2;
}
.catalog-lesson__copy small {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.catalog-lesson__preview {
  display: block;
  grid-area: preview;
  height: 72px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--preview);
}
.catalog-lesson__preview svg {
  width: 100%;
  height: 100%;
}
.catalog-lesson__preview--wip {
  display: grid;
  place-items: center;
  background:
    linear-gradient(color-mix(in srgb, var(--preview) 82%, transparent), var(--preview)),
    repeating-linear-gradient(
      135deg,
      transparent 0 10px,
      color-mix(in srgb, var(--line) 55%, transparent) 10px 11px
    );
}
.catalog-lesson__preview--wip > span,
.boss-builder-mechanic__diagram--wip > span,
.wip-mechanic-placeholder > span {
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}
.catalog-lesson__arrow {
  grid-area: arrow;
  color: var(--accent);
  transition: transform 0.18s;
}
.catalog-lesson__arrow .icon {
  width: 21px;
  height: 21px;
}
.catalog-lesson:hover .catalog-lesson__arrow,
.catalog-lesson:focus-visible .catalog-lesson__arrow {
  transform: translateX(4px);
}
[dir='rtl'] .catalog-lesson:hover .catalog-lesson__arrow,
[dir='rtl'] .catalog-lesson:focus-visible .catalog-lesson__arrow {
  transform: translateX(-4px);
}
.lens-visual {
  margin: 0;
  min-width: 0;
}
.lens-visual__svg {
  width: 100%;
  height: auto;
  overflow: visible;
}
.lens-visual__frame {
  fill: var(--panel);
  stroke: var(--line);
  stroke-width: 2;
}
.lens-visual__arena {
  fill: var(--diagram-arena);
  stroke: var(--diagram-border);
  stroke-width: 2;
}
.lens-visual__grid {
  fill: none;
  stroke: var(--diagram-grid);
  stroke-width: 1;
}
.lens-visual__grid--arena {
  opacity: 0.75;
}
.lens-visual__muted-line,
.lens-visual__accent-line,
.lens-visual__signal-line,
.lens-visual__ink-line,
.lens-visual__paper-line,
.lens-visual__response-path,
.lens-visual__escape-arrow {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 5;
  vector-effect: non-scaling-stroke;
}
.lens-visual__muted-line {
  stroke: var(--diagram-corners);
}
.lens-visual__accent-line,
.lens-visual__response-path,
.lens-visual__escape-arrow {
  stroke: var(--accent);
}
.lens-visual__signal-line {
  stroke: var(--signal);
}
.lens-visual__ink-line {
  stroke: var(--ink);
}
.lens-visual__paper-line {
  stroke: var(--surface);
}
.lens-visual__accent-fill {
  fill: var(--accent);
}
.lens-visual__signal-fill {
  fill: var(--signal);
}
.lens-visual__paper-fill {
  fill: var(--surface);
}
.lens-visual__ink-fill {
  fill: var(--ink);
}
.lens-visual__node {
  fill: var(--surface);
  stroke: var(--diagram-border);
  stroke-width: 3;
}
.lens-visual__beats circle {
  fill: var(--surface);
  stroke: var(--accent);
  stroke-width: 3;
}
.lens-visual__pulse-ring {
  opacity: 0.25;
  transform-box: fill-box;
  transform-origin: center;
  animation: lens-pulse 3.2s ease-out infinite;
}
.lens-visual__timeline-fill,
.lens-visual__chosen-path,
.lens-visual__learning-progress {
  stroke-dasharray: 440;
  stroke-dashoffset: 0;
  animation: lens-draw-line 3.2s ease-in-out infinite;
}
.lens-visual__result,
.lens-visual__committed-result,
.lens-visual__test-node {
  animation: lens-result 3.2s ease-in-out infinite;
}
.lens-visual__lock {
  animation: lens-lock 3.2s ease-in-out infinite;
}
.lens-visual__unused-options {
  animation: lens-options 3.2s ease-in-out infinite;
}
.lens-visual__safe-zone {
  fill: var(--accent-soft);
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 8 8;
}
.lens-visual__threat-band .lens-visual__signal-fill,
.lens-visual__challenge .lens-visual__signal-fill,
.lens-visual__test-node .lens-visual__signal-fill {
  opacity: 0.18;
}
.lens-visual__threat-band {
  animation: lens-threat 4s ease-in-out infinite;
}
.lens-visual__player-footprint {
  animation: lens-escape 4s ease-in-out infinite;
}
.lens-visual__escape-arrow {
  stroke-dasharray: 9 9;
}
.lens-visual__response-path {
  stroke-dasharray: 12 11;
}
.lens-visual__response-path--top {
  animation: lens-response 3.6s ease-in-out infinite;
}
.lens-visual__response-path--bottom {
  animation: lens-response 3.6s 1.8s ease-in-out infinite;
}
.lens-visual__tool {
  animation: lens-tool 3.6s ease-in-out infinite;
}
.lens-visual__scale {
  transform-box: fill-box;
  transform-origin: center;
  animation: lens-balance 4s ease-in-out infinite;
}
.lens-visual__trade-arrows {
  animation: lens-trade 4s ease-in-out infinite;
}
.lens-visual__practice-loop {
  animation: lens-practice 3.2s ease-in-out infinite;
}
.lens-visual--compact {
  margin: -10px -10px 17px;
}
.lens-visual--compact .lens-visual__frame {
  fill: var(--preview);
}
@keyframes lens-pulse {
  0%,
  18% {
    opacity: 0.75;
    transform: scale(0.6);
  }
  52%,
  100% {
    opacity: 0;
    transform: scale(1.25);
  }
}
@keyframes lens-draw-line {
  0%,
  15% {
    stroke-dashoffset: 440;
  }
  70%,
  100% {
    stroke-dashoffset: 0;
  }
}
@keyframes lens-result {
  0%,
  58% {
    opacity: 0.35;
  }
  72%,
  100% {
    opacity: 1;
  }
}
@keyframes lens-lock {
  0%,
  38% {
    opacity: 0.35;
  }
  49%,
  100% {
    opacity: 1;
  }
}
@keyframes lens-options {
  0%,
  38% {
    opacity: 1;
  }
  55%,
  100% {
    opacity: 0.22;
  }
}
@keyframes lens-threat {
  0%,
  18% {
    transform: translateX(-34px);
  }
  50%,
  68% {
    transform: translateX(34px);
  }
  100% {
    transform: translateX(-34px);
  }
}
@keyframes lens-escape {
  0%,
  28% {
    transform: translateX(0);
  }
  48%,
  78% {
    transform: translateX(-124px);
  }
  100% {
    transform: translateX(0);
  }
}
@keyframes lens-response {
  0%,
  20% {
    opacity: 0.25;
    stroke-dashoffset: 92;
  }
  55%,
  75% {
    opacity: 1;
    stroke-dashoffset: 0;
  }
  100% {
    opacity: 0.25;
    stroke-dashoffset: -92;
  }
}
@keyframes lens-tool {
  0%,
  22%,
  100% {
    opacity: 0.45;
  }
  45%,
  72% {
    opacity: 1;
  }
}
@keyframes lens-balance {
  0%,
  100% {
    transform: rotate(-4deg);
  }
  50% {
    transform: rotate(4deg);
  }
}
@keyframes lens-trade {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 1;
  }
}
@keyframes lens-practice {
  0%,
  22%,
  100% {
    opacity: 0.3;
  }
  45%,
  76% {
    opacity: 1;
  }
}
.lens-catalog-main,
.lens-main {
  width: min(1180px, calc(100% - 88px));
  margin: 0 auto;
  padding: 50px 0 70px;
}
.lens-catalog-hero {
  max-width: 800px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}
.lens-catalog-hero > .eyebrow,
.lens-page__copy > .eyebrow {
  color: var(--accent);
}
.lens-catalog-hero h1,
.lens-page__hero h1 {
  font-size: clamp(36px, 4vw, 52px);
  letter-spacing: -0.055em;
  line-height: 1.02;
  margin: 16px 0 19px;
  overflow-wrap: anywhere;
}
.lens-catalog-hero p,
.lens-page__hero p {
  color: var(--soft-ink);
  font-size: 18px;
  line-height: 1.65;
  margin: 0;
}
.lens-page__framework > .eyebrow {
  color: var(--accent);
}
.lens-catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}
.lens-card {
  display: flex;
  flex-direction: column;
  min-height: 350px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}
.lens-card:hover {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-2px);
}
.lens-card h2,
.lens-mechanic-card h2 {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
}
.lens-card h2 {
  font-size: 23px;
  line-height: 1.25;
  margin: 12px 0 13px;
}
.lens-card h2 .icon,
.lens-mechanic-card h2 .icon {
  width: 0.9em;
  height: 0.9em;
  color: var(--accent);
}
.lens-card p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
  margin: 0 0 18px;
}
.lens-card__count {
  margin-top: auto;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 650;
}
.lens-page {
  max-width: 1180px;
}
.lens-page__hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(410px, 1.14fr);
  align-items: center;
  gap: 48px;
  max-width: none;
  padding-bottom: 42px;
}
.lens-page__copy p {
  font-size: 21px;
}
.lens-page__mechanics,
.lens-page__framework,
.lens-page__related,
.lens-page__sources,
.lens-page__review {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  margin-top: 22px;
}
.lens-page__mechanics > .eyebrow,
.lens-page__framework > .eyebrow,
.lens-page__related > .eyebrow {
  color: var(--accent);
}
.lens-page__mechanics > h2 {
  font-size: 26px;
  margin: 9px 0 19px;
}
.lens-page__framework > h2 {
  margin: 9px 0 8px;
  font-size: 26px;
}
.lens-page__framework > p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}
.lens-page__framework > div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 17px;
}
.lens-page__framework article {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.lens-page__framework h3 {
  margin: 0 0 8px;
  font-size: 19px;
}
.lens-page__framework article p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}
.lens-page__mechanics > div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.lens-mechanic-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.lens-mechanic-card:hover {
  border-color: var(--accent);
  text-decoration: none;
}
.lens-mechanic-card h2 {
  font-size: 24px;
  margin: 10px 0;
}
.lens-mechanic-card p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
  margin: 0;
}
.lens-page__related .lens-chips {
  margin-top: 13px;
}
.lens-page__review {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
  max-width: 760px;
}
.lens-page__review a {
  color: var(--accent);
}
.boss-builder-main {
  width: min(1180px, calc(100% - 88px));
  margin: 0 auto;
  padding: 48px 0 72px;
}
.boss-builder-hero {
  max-width: 940px;
  padding-bottom: 31px;
  border-bottom: 1px solid var(--line);
}
.boss-builder-hero > .eyebrow {
  color: var(--accent);
}
.boss-builder-hero h1 {
  margin: 13px 0 13px;
  font-size: clamp(40px, 4.6vw, 60px);
  letter-spacing: -0.055em;
  line-height: 1.03;
}
.boss-builder-hero p {
  max-width: 780px;
  margin: 0;
  color: var(--soft-ink);
  font-size: 18px;
  line-height: 1.65;
}
.boss-builder-storage {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 15px;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 650;
}
.boss-builder-storage::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  content: '';
}
.boss-builder-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 24px;
}
.boss-builder-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  align-items: start;
  gap: 24px;
  margin-top: 24px;
}
.boss-builder-form,
.boss-builder-phases,
.boss-builder-mechanics {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.boss-builder-sidebar {
  display: grid;
  gap: 14px;
}
.boss-builder-form,
.boss-builder-phases {
  padding: 21px;
}
.boss-builder-field {
  display: grid;
  gap: 7px;
  margin-bottom: 17px;
}
.boss-builder-form .boss-builder-field:last-child {
  margin-bottom: 0;
}
.boss-builder-field > span {
  color: var(--ink);
  font-size: 12px;
  font-weight: 650;
}
.boss-builder-field input,
.boss-builder-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  line-height: 1.55;
}
.boss-builder-field input {
  min-height: 44px;
  padding: 9px 11px;
}
.boss-builder-field textarea {
  min-height: 154px;
  padding: 10px 11px;
  resize: vertical;
}
.boss-builder-field input::placeholder,
.boss-builder-field textarea::placeholder {
  color: var(--muted);
  opacity: 0.78;
}
.boss-builder-field input:hover,
.boss-builder-field textarea:hover,
.boss-builder-field input:focus,
.boss-builder-field textarea:focus {
  border-color: var(--accent);
}
.boss-builder-field input[aria-invalid='true'] {
  border-color: var(--signal);
  outline: 2px solid color-mix(in srgb, var(--signal) 35%, transparent);
  outline-offset: 2px;
}
.boss-builder-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.boss-builder-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 11px;
  font-weight: 700;
}
.boss-builder-actions button .icon {
  width: 15px;
  height: 15px;
}
.boss-builder-actions--top .boss-builder-random {
  flex-basis: auto;
}
.boss-builder-random {
  flex: 1 0 100%;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line)) !important;
  background: var(--accent-soft);
  color: var(--accent);
}
.boss-builder-random:hover {
  border-color: var(--accent) !important;
}
.boss-builder-download {
  flex: 1 1 135px;
  border-color: var(--accent) !important;
  background: var(--accent);
  color: var(--paper);
}
.boss-builder-actions--download {
  margin-top: 15px;
}
.boss-builder-reset {
  background: transparent;
  color: var(--muted);
}
.boss-builder-reset:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}
.boss-builder-reset:disabled {
  cursor: default;
  opacity: 0.4;
}
.boss-builder-status {
  min-height: 18px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 10px;
}
.boss-builder-topbar .boss-builder-status {
  flex: 1 1 220px;
  margin: 0;
}
.boss-builder-support {
  width: min(calc(100% - 36px), 480px);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 20px 64px color-mix(in srgb, var(--ink) 20%, transparent);
}
.boss-builder-support::backdrop {
  background: color-mix(in srgb, var(--ink) 42%, transparent);
  backdrop-filter: blur(3px);
}
.boss-builder-support__card {
  padding: 26px;
}
.boss-builder-support__card::before {
  display: block;
  width: 36px;
  height: 3px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: var(--accent);
  content: '';
}
.boss-builder-support__card h2 {
  margin: 0 0 9px;
  font-size: clamp(20px, 5.5vw, 28px);
  letter-spacing: -0.025em;
  line-height: 1.15;
  white-space: nowrap;
}
.boss-builder-support__card > p {
  margin: 0;
  color: var(--soft-ink);
  font-size: 13px;
  line-height: 1.6;
}
.boss-builder-support__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}
.boss-builder-support__actions button,
.boss-builder-support__actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 40px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
}
.boss-builder-support__actions button {
  background: transparent;
  color: var(--muted);
}
.boss-builder-support__actions a {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--paper);
}
.boss-builder-support__actions a:hover {
  text-decoration: none;
}
.boss-builder-support__actions .icon {
  width: 14px;
  height: 14px;
}
.boss-builder-phases > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.boss-builder-phases h2 {
  margin: 0;
  font-size: 19px;
}
.boss-builder-phases > header button,
.boss-builder-filter-actions button,
.boss-builder-relation-group button {
  min-height: 32px;
  padding: 6px 9px;
  border: 1px solid var(--accent-line);
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
}
.boss-builder-phases > header button:disabled {
  cursor: default;
  opacity: 0.4;
}
.boss-builder-phases > p,
.boss-builder-recommendations header p {
  margin: 9px 0 15px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}
.boss-builder-phase-list {
  display: grid;
  gap: 10px;
}
.boss-builder-phase {
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--paper);
  cursor: pointer;
}
.boss-builder-phase:hover {
  border-color: var(--accent-line);
}
.boss-builder-phase:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.boss-builder-phase--active {
  border-color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}
.boss-builder-phase > header {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 28px;
  gap: 7px;
}
.boss-builder-phase > header:has(> :nth-child(2):last-child) {
  grid-template-columns: 32px minmax(0, 1fr);
}
.boss-builder-phase__number,
.boss-builder-phase > header > button:last-child,
.boss-builder-assignment__header > button {
  display: grid;
  place-items: center;
  min-width: 28px;
  min-height: 28px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}
.boss-builder-phase__number {
  border-color: var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
}
.boss-builder-phase__health {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 5px 10px;
  margin-top: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--soft-ink);
  font-size: 10px;
  font-weight: 650;
}
.boss-builder-phase__health-control {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--accent);
}
.boss-builder-phase__health .boss-builder-phase__health-control input {
  width: 58px;
  padding: 5px 4px 5px 7px;
  text-align: end;
}
.boss-builder-phase__health input:disabled {
  color: var(--muted);
  cursor: default;
  opacity: 0.72;
}
.boss-builder-phase__health small {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 9px;
  font-weight: 500;
}
.boss-builder-phase input,
.boss-builder-phase textarea,
.boss-builder-filter select,
.boss-builder-active-phase select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}
.boss-builder-phase input {
  min-width: 0;
  padding: 5px 7px;
  font-size: 11px;
  font-weight: 700;
}
.boss-builder-phase > textarea {
  min-height: 52px;
  margin-top: 7px;
  padding: 7px;
  resize: vertical;
  font-size: 10px;
  line-height: 1.45;
}
.boss-builder-assignment-list {
  display: grid;
  gap: 7px;
  margin-top: 9px;
}
.boss-builder-assignment {
  padding-top: 7px;
  border-top: 1px solid var(--line);
}
.boss-builder-assignment__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px;
  align-items: center;
  gap: 8px;
}
.boss-builder-assignment__header > strong {
  min-width: 0;
  font-size: 11px;
}
.boss-builder-assignment > textarea {
  min-height: 48px;
  margin-top: 6px;
  padding: 7px;
  resize: vertical;
  font-size: 10px;
  line-height: 1.45;
}
.boss-builder-empty {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  font-style: italic;
}
.boss-builder-recommendations {
  margin-bottom: 18px;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}
.boss-builder-recommendations header h3 {
  margin: 0;
  font-size: 18px;
}
.boss-builder-recommendations header p {
  max-width: 680px;
}
.boss-builder-recommendations__groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.boss-builder-relation-group {
  min-width: 0;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}
.boss-builder-relation-group h4 {
  margin: 0 0 8px;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.boss-builder-relation-group--conflict h4 {
  color: var(--signal);
}
.boss-builder-relation-group ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.boss-builder-relation-group li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 10px;
}
.boss-builder-relation-group li > span {
  display: grid;
  gap: 2px;
}
.boss-builder-relation-group li > span small,
.boss-builder-relation-group li > span:not(:has(strong)) {
  color: var(--muted);
  font-size: 9px;
}
.boss-builder-mechanics {
  padding: 21px;
}
.boss-builder-mechanics__heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}
.boss-builder-mechanics__heading h2 {
  margin-top: 6px;
  font-size: 26px;
}
.boss-builder-mechanics__heading > span {
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}
.boss-builder-mechanics > p {
  max-width: 650px;
  margin: 10px 0 18px;
  color: var(--muted);
  font-size: 13px;
}
.boss-builder-search {
  position: relative;
  display: block;
  margin-bottom: 14px;
}
.boss-builder-search__icon {
  position: absolute;
  z-index: 1;
  inset-block-start: 50%;
  inset-inline-start: 13px;
  color: var(--muted);
  pointer-events: none;
  transform: translateY(-50%);
}
.boss-builder-search__icon .icon {
  width: 15px;
  height: 15px;
}
.boss-builder-search input {
  width: 100%;
  min-height: 42px;
  padding: 9px 12px;
  padding-inline-start: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 13px;
}
.boss-builder-search input:focus {
  border-color: var(--accent);
  outline: 2px solid color-mix(in srgb, var(--accent) 28%, transparent);
  outline-offset: 2px;
}
.boss-builder-filters {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  margin-bottom: 14px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}
.boss-builder-filter {
  display: grid;
  gap: 5px;
  min-width: 0;
}
.boss-builder-filter > span,
.boss-builder-active-phase > span {
  color: var(--muted);
  font-family: var(--font-label);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.boss-builder-filter select,
.boss-builder-active-phase select {
  min-height: 34px;
  padding: 6px 8px;
  font-size: 10px;
}
.boss-builder-filter-actions {
  display: flex;
  align-items: end;
  justify-content: space-between;
  grid-column: span 2;
  gap: 8px;
  color: var(--muted);
  font-size: 9px;
}
.boss-builder-active-phase {
  display: grid;
  grid-template-columns: auto minmax(160px, 240px);
  align-items: center;
  justify-content: end;
  gap: 10px;
  margin-bottom: 14px;
}
.boss-builder-mechanics__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.boss-builder-mechanic {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--paper);
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}
.boss-builder-mechanic:has(input:checked) {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.boss-builder-mechanic--compatible:not(:has(input:checked)) {
  border-color: var(--accent-line);
}
.boss-builder-mechanic--conflict:not(:has(input:checked)) {
  border-color: color-mix(in srgb, var(--signal) 55%, var(--line));
}
.boss-builder-mechanic:has(input:focus-visible) {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.boss-builder-mechanic__select {
  position: relative;
  display: grid;
  grid-template-columns: 145px minmax(0, 1fr);
  min-height: 150px;
  cursor: pointer;
}
.boss-builder-mechanic__select > input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.boss-builder-mechanic__check {
  position: absolute;
  z-index: 2;
  top: 12px;
  inset-inline-end: 12px;
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  border: 1px solid var(--accent-line);
  border-radius: 50%;
  background: var(--surface);
  color: transparent;
}
.boss-builder-mechanic__check .icon {
  width: 13px;
  height: 13px;
}
.boss-builder-mechanic__select > input:checked + .boss-builder-mechanic__check {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--paper);
}
.boss-builder-mechanic__diagram {
  display: grid;
  place-items: center;
  min-width: 0;
  overflow: hidden;
  border-inline-end: 1px solid var(--line);
  background: var(--preview);
}
.boss-builder-mechanic__diagram svg {
  width: 100%;
  height: 100%;
}
.boss-builder-mechanic__diagram--wip {
  background:
    linear-gradient(color-mix(in srgb, var(--preview) 82%, transparent), var(--preview)),
    repeating-linear-gradient(
      135deg,
      transparent 0 13px,
      color-mix(in srgb, var(--line) 55%, transparent) 13px 14px
    );
}
.boss-builder-mechanic__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 36px 18px 17px;
}
.boss-builder-mechanic__copy .eyebrow {
  color: var(--accent);
  font-size: 8px;
}
.boss-builder-mechanic__copy strong {
  margin: 5px 0 7px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.25;
}
.boss-builder-mechanic__copy strong .wip-badge {
  display: inline-flex;
  margin-inline-start: 5px;
  vertical-align: 3px;
}
.boss-builder-mechanic__summary {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}
.boss-builder-mechanic__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}
.boss-builder-mechanic__tags > span {
  padding: 3px 5px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 7px;
  font-weight: 700;
  text-transform: uppercase;
}
.boss-builder-mechanic > a {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  padding: 8px 14px;
  border-top: 1px solid var(--line);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  text-align: end;
}
.wip-mechanic-main {
  width: min(1120px, calc(100% - 88px));
  min-height: calc(100vh - 190px);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) 0 72px;
}
.wip-mechanic-hero {
  max-width: 860px;
}
.wip-mechanic-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.wip-mechanic-title h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  letter-spacing: -0.055em;
  line-height: 1.02;
}
.wip-mechanic-title .wip-badge {
  padding: 5px 9px;
  font-size: 11px;
}
.wip-mechanic-hero > p {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--soft-ink);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.65;
}
.draft-profile {
  margin-top: clamp(48px, 7vw, 84px);
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.draft-profile__header {
  max-width: 860px;
}
.draft-profile__header h2 {
  margin: 12px 0 14px;
  font-size: clamp(30px, 4vw, 46px);
}
.draft-profile__header p {
  margin: 0;
  color: var(--soft-ink);
  font-size: 17px;
  line-height: 1.7;
}
.draft-profile__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr));
  gap: 14px;
  margin-top: 28px;
}
.draft-profile__card {
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.draft-profile__card > span {
  color: var(--accent);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.draft-profile__card h3 {
  margin: 11px 0 8px;
  font-size: 19px;
}
.draft-profile__card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}
.wip-examples {
  margin-top: clamp(48px, 7vw, 84px);
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.wip-examples > header {
  display: flex;
  gap: 14px;
  align-items: baseline;
  margin-bottom: 22px;
}
.wip-examples h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 36px);
}
.wip-example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.wip-example-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.wip-example-card h3 {
  margin: 9px 0 2px;
  font-size: 22px;
}
.wip-example-card__game {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}
.wip-example-card > p:last-of-type {
  margin: 0;
  color: var(--soft-ink);
  line-height: 1.65;
}
.wip-example-card footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: auto;
  padding-top: 22px;
}
.wip-example-card footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}
.wip-mechanic-panel {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(300px, 1.3fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  margin-top: clamp(48px, 7vw, 84px);
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.wip-mechanic-placeholder {
  display: grid;
  place-items: center;
  min-height: 250px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(color-mix(in srgb, var(--preview) 80%, transparent), var(--preview)),
    repeating-linear-gradient(
      135deg,
      transparent 0 18px,
      color-mix(in srgb, var(--line) 55%, transparent) 18px 19px
    );
}
.wip-mechanic-placeholder > span {
  font-size: 18px;
}
.wip-mechanic-panel h2 {
  margin: 9px 0 11px;
  font-size: clamp(28px, 4vw, 42px);
}
.wip-mechanic-panel p {
  max-width: 620px;
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.65;
}
.wip-builder-link {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}
.wip-builder-link .icon {
  width: 15px;
  height: 15px;
}
.wip-builder-link:hover {
  background: var(--accent);
  color: var(--paper);
  text-decoration: none;
}
.language-home {
  padding: 65px 24px;
}
.language-home > .theme-toggle {
  position: fixed;
  top: 24px;
  inset-inline-end: 24px;
}
.language-home main {
  max-width: 740px;
  margin: auto;
}
.language-home .brand-mark {
  margin-bottom: 40px;
}
.brand-mark--gateway {
  width: 88px;
  height: 88px;
}
.language-home h1 {
  font-size: clamp(44px, 8vw, 72px);
  letter-spacing: -0.06em;
  line-height: 1.05;
  margin: 18px 0 25px;
}
.language-home h1 em {
  font-style: normal;
  color: var(--accent);
}
.language-home .lead {
  font-size: 19px;
}
.language-choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin: 38px 0;
}
.language-choice {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
  font-size: 15px;
}
.language-choice > .icon {
  width: 18px;
  height: 18px;
  color: var(--accent);
}
.language-choice__label {
  display: flex;
  align-items: center;
  gap: 12px;
}
.language-choice .language-flag {
  font-size: 1.25rem;
}
.language-choice:hover {
  border-color: var(--accent);
  text-decoration: none;
}
.language-home .legal a {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
}
[dir='rtl'] .lesson-hero h1 {
  letter-spacing: 0;
}
[lang='hi'],
[lang='bn'] {
  line-height: 1.85;
}
[lang='hi'] h1,
[lang='bn'] h1 {
  line-height: 1.5;
  letter-spacing: 0;
}
[lang='hi'] h2,
[lang='hi'] h3,
[lang='bn'] h2,
[lang='bn'] h3 {
  line-height: 1.6;
  letter-spacing: 0;
}
[lang='zh-Hans'],
[lang='ja'] {
  line-height: 1.8;
}
[lang='zh-Hans'] h1,
[lang='ja'] h1 {
  letter-spacing: -0.03em;
}
[lang='ar'] {
  line-height: 1.85;
}
[lang='ar'] .eyebrow {
  letter-spacing: 0;
}
[lang='hi'] .catalog-hero h1,
[lang='bn'] .catalog-hero h1 {
  font-size: clamp(40px, 3.8vw, 54px);
}
@media (min-width: 1600px) {
  .lesson-overview-grid {
    grid-template-columns: minmax(480px, 1fr) 400px;
  }
}
@media (max-width: 1150px) {
  .header-inner {
    padding: 0 28px;
  }
  .lesson-layout {
    padding: 0 28px;
  }
  .lesson-overview-grid {
    gap: 28px;
  }
  .site-footer {
    width: calc(100% - 56px);
    margin: 0 auto;
  }
}
@media (max-width: 960px) {
  .contribute-link {
    display: none;
  }
  .lesson-overview-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      'overview'
      'simulation'
      'checklist';
    row-gap: 28px;
  }
  .lesson-hero {
    max-width: 720px;
  }
  .simulation-section {
    justify-self: center;
  }
  .catalog-hero {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 480px);
    gap: 24px;
  }
  .catalog-hero h1 {
    font-size: 40px;
  }
  .catalog-hero__questions {
    display: none;
  }
  .catalog-workflow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .catalog-workflow__steps li:nth-child(4) {
    border-inline-start: 0;
  }
  .catalog-workflow__steps li:nth-child(n + 4) {
    border-top: 1px solid var(--line);
  }
  .catalog-guides {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.9fr);
  }
  .catalog-guides__copy {
    padding: 32px 28px 32px 0;
  }
  [dir='rtl'] .catalog-guides__copy {
    padding: 32px 0 32px 28px;
  }
  .catalog-lesson {
    grid-template-columns: 48px 132px minmax(0, 1fr) 20px;
    gap: 14px;
  }
  .catalog-page .site-footer {
    margin-inline: 28px;
  }
  .lens-catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .lens-page__hero {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .lens-page__copy {
    max-width: 760px;
  }
  .lens-page__hero .lens-visual {
    max-width: 720px;
  }
  .boss-builder-layout {
    grid-template-columns: 1fr;
  }
  .about-main {
    width: min(calc(100% - 56px), 1180px);
  }
}
@media (max-width: 850px) {
  .lesson-layout {
    padding: 0 24px;
  }
  .lesson-main {
    padding-top: 27px;
  }
  .header-inner {
    min-height: 70px;
    padding: 0 24px;
    gap: 17px;
  }
  .header-nav {
    gap: 18px;
  }
  .language-menu {
    margin-inline-start: 0;
  }
  .site-footer {
    gap: 20px;
  }
  .site-footer .footer-brand {
    display: none;
  }
  .example-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .lens-catalog-main,
  .lens-main {
    width: min(calc(100% - 48px), 1180px);
  }
  .about-motivation,
  .about-resources,
  .about-contact {
    grid-template-columns: 1fr;
  }
  .about-prototype__comparison {
    grid-template-columns: 1fr;
  }
  .about-contact__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .catalog-hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .catalog-hero__copy {
    max-width: 680px;
  }
  .catalog-hero__lesson {
    width: min(100%, 620px);
  }
  .catalog-hero__questions {
    display: grid;
  }
  .catalog-workflow__heading {
    grid-template-columns: 1fr;
  }
  .catalog-workflow__heading .eyebrow {
    grid-column: auto;
  }
  .catalog-guides {
    grid-template-columns: 1fr;
  }
  .catalog-guides__art {
    order: 2;
  }
  .catalog-guides__copy {
    padding: 34px 30px 0;
  }
  [dir='rtl'] .catalog-guides__copy {
    padding: 34px 30px 0;
  }
}
@media (max-width: 580px) {
  :root {
    scroll-padding-top: 90px;
  }
  .header-inner {
    padding: 0 18px;
    gap: 9px;
    min-height: 65px;
  }
  .brand {
    font-size: 17px;
    gap: 8px;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
  }
  .header-inner > .theme-toggle {
    width: 34px;
    height: 34px;
  }
  .header-nav {
    display: none;
  }
  .language-menu {
    margin-inline-start: auto;
    min-width: auto;
    font-size: 11px;
  }
  .language-menu summary {
    padding: 6px 9px;
  }
  .language-menu nav {
    top: 42px;
    max-width: calc(100vw - 36px);
  }
  .lesson-layout {
    padding: 0 18px;
  }
  .lesson-main {
    padding-top: 25px;
  }
  .lesson-hero h1 {
    font-size: 42px;
    margin: 18px 0 12px;
  }
  .lesson-title-line {
    position: relative;
    margin: 18px 0 12px;
  }
  .lesson-title-line h1 {
    width: 100%;
    margin: 0;
  }
  .lesson-category {
    margin-inline-start: auto;
  }
  .mechanic-builder-action {
    align-items: stretch;
    width: 100%;
    flex-direction: column;
  }
  .mechanic-builder-action > a {
    margin-inline-start: 28px;
  }
  .lesson-title-line .lens-chip {
    position: static;
  }
  .lesson-title-line .lens-chip__tooltip,
  .lesson-title-line .lens-chip:nth-last-child(-n + 2) .lens-chip__tooltip {
    top: calc(100% + 7px);
    inset-inline: 0;
    width: auto;
    max-width: none;
  }
  .mechanic-overview {
    font-size: 15px;
    line-height: 1.65;
  }
  .implementation-checklist__intro {
    display: block;
  }
  .implementation-checklist__intro p {
    margin-top: 7px;
  }
  .checklist-reset {
    margin-top: 9px;
    margin-inline-start: 0;
  }
  .implementation-checklist__groups {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .content-section {
    padding-top: 28px;
    margin-top: 32px;
  }
  .content-section > h2 {
    font-size: 25px;
    margin-bottom: 23px;
  }
  .example-grid {
    grid-template-columns: 1fr;
  }
  .lens-catalog-main,
  .lens-main {
    width: calc(100% - 36px);
    padding: 31px 0 48px;
  }
  .boss-builder-main {
    width: calc(100% - 36px);
    padding: 31px 0 48px;
  }
  .boss-builder-hero h1 {
    font-size: 40px;
  }
  .boss-builder-hero p {
    font-size: 16px;
  }
  .boss-builder-form,
  .boss-builder-phases,
  .boss-builder-mechanics {
    padding: 17px;
  }
  .boss-builder-filters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .boss-builder-filter-actions {
    grid-column: 1 / -1;
  }
  .boss-builder-recommendations__groups {
    grid-template-columns: 1fr;
  }
  .boss-builder-active-phase {
    grid-template-columns: 1fr;
  }
  .boss-builder-mechanics__grid {
    grid-template-columns: 1fr;
  }
  .boss-builder-mechanic__select {
    grid-template-columns: 122px minmax(0, 1fr);
  }
  .boss-builder-support__card {
    padding: 22px 18px 18px;
  }
  .boss-builder-support__actions {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
  }
  .wip-mechanic-main {
    width: calc(100% - 36px);
    padding: 42px 0 52px;
  }
  .wip-mechanic-title h1 {
    font-size: 38px;
  }
  .wip-mechanic-panel {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .wip-example-grid {
    grid-template-columns: 1fr;
  }
  .wip-mechanic-placeholder {
    min-height: 180px;
  }
  .lens-catalog-hero h1,
  .lens-page__hero h1 {
    font-size: 36px;
  }
  .lens-catalog-hero p,
  .lens-page__hero p {
    font-size: 16px;
  }
  .lens-catalog-grid,
  .lens-page__mechanics > div,
  .lens-page__framework > div {
    grid-template-columns: 1fr;
  }
  .lens-card {
    min-height: 0;
  }
  .game-example {
    min-height: 0;
  }
  .game-example__body {
    padding: 17px 19px 19px;
  }
  .sources ul {
    grid-template-columns: 1fr;
  }
  .site-footer {
    width: calc(100% - 36px);
    margin: 0 auto;
    align-items: stretch;
    flex-direction: column;
    gap: 20px;
    padding: 23px 0;
  }
  .site-footer > div {
    max-width: none;
  }
  .footer-repository {
    margin-inline-start: 0;
    white-space: nowrap;
    font-size: 11px;
  }
  .about-main {
    width: calc(100% - 36px);
    padding: 48px 0 68px;
  }
  .about-page {
    gap: 64px;
  }
  .about-hero h1 {
    font-size: clamp(42px, 15vw, 64px);
  }
  .about-motivation {
    gap: 22px;
    padding-block: 28px;
  }
  .about-prototype__comparison article {
    min-height: 0;
    padding: 24px 20px;
  }
  .about-prototype__before blockquote {
    margin-top: 38px;
  }
  .about-prototype footer {
    align-items: flex-start;
    flex-direction: column;
  }
  .about-principles,
  .about-contact__links {
    grid-template-columns: 1fr;
  }
  .about-principle {
    min-height: 0;
  }
  .about-principle h3 {
    margin-top: 32px;
  }
  .about-contact {
    padding: 26px 22px;
  }
  .catalog-main {
    padding: 24px 18px;
  }
  .catalog-hero {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 25px 0 54px;
  }
  .catalog-hero h1 {
    margin-block: 12px 16px;
    font-size: clamp(35px, 11.5vw, 46px);
  }
  .catalog-hero .lead {
    font-size: 16px;
  }
  .catalog-hero__actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 24px;
  }
  .catalog-hero__primary,
  .catalog-hero__secondary {
    width: 100%;
  }
  .catalog-hero__features {
    gap: 7px 16px;
    margin-top: 20px;
  }
  .catalog-hero__features li:not(:first-child)::before {
    inset-inline-start: -10px;
  }
  .catalog-hero__lesson {
    padding: 16px;
  }
  .catalog-hero__preview {
    height: 145px;
  }
  .catalog-hero__questions {
    grid-template-columns: 1fr;
  }
  .catalog-hero__questions li + li {
    border-top: 1px solid var(--line);
  }
  .catalog-workflow {
    padding: 58px 0;
  }
  .catalog-workflow__heading {
    margin-bottom: 26px;
  }
  .catalog-workflow__heading h2 {
    font-size: 34px;
  }
  .catalog-workflow__heading p {
    font-size: 15px;
  }
  .catalog-workflow__steps {
    grid-template-columns: 1fr;
  }
  .catalog-workflow__steps li {
    min-height: 0;
    padding: 18px 4px 20px;
    border-inline-start: 0;
    border-top: 1px solid var(--line);
  }
  .catalog-workflow__steps li:first-child {
    border-top: 0;
  }
  .catalog-workflow__steps h3 {
    margin-top: 17px;
  }
  .catalog-guides {
    gap: 12px;
    margin-bottom: 70px;
  }
  .catalog-guides__copy,
  [dir='rtl'] .catalog-guides__copy {
    padding: 28px 22px 0;
  }
  .catalog-guides__copy h2 {
    font-size: 31px;
  }
  .catalog-guides__art img {
    max-height: 330px;
  }
  .lead {
    font-size: 17px;
  }
  .catalog-part-nav {
    grid-template-columns: 1fr;
  }
  .catalog-part-nav__link {
    border-inline-start: 0;
    border-top: 1px solid var(--line);
  }
  .catalog-part-nav__link:first-child {
    border-top: 0;
  }
  .catalog-part__header {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 10px;
  }
  .catalog-lesson {
    grid-template-areas: 'number copy arrow';
    grid-template-columns: 42px minmax(0, 1fr) 20px;
    gap: 10px;
    min-height: 94px;
  }
  .catalog-lesson__preview {
    display: none;
  }
  .catalog-lesson__number {
    padding-top: 5px;
  }
  .catalog-page .site-footer {
    margin-inline: 18px;
    width: calc(100% - 36px);
  }
  .language-home {
    padding: 35px 20px;
  }
  .language-home > .theme-toggle {
    top: 18px;
    inset-inline-end: 18px;
  }
  .language-home .brand-mark {
    margin-bottom: 25px;
  }
  .language-choices {
    gap: 8px;
  }
  .language-choice {
    padding: 13px;
    font-size: 14px;
  }
  .language-home .lead {
    font-size: 16px;
  }
  [lang='hi'] .lesson-hero h1,
  [lang='bn'] .lesson-hero h1 {
    font-size: 40px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
  .lens-visual * {
    animation: none !important;
  }
}
@media print {
  .site-header,
  .site-footer,
  .mechanic-builder-action,
  .charge-demo button,
  .charge-demo input,
  .charge-demo select {
    display: none !important;
  }
  .lesson-layout {
    display: block;
    padding: 0;
  }
  .lesson-main {
    padding: 0;
  }
  .content-section {
    break-inside: avoid;
  }
  .lesson-hero h1 {
    font-size: 42px;
  }
  a {
    color: inherit;
  }
}