:root {
  color: #171717;
  background: #f5f4f1;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  margin: 0;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
}

body.canvas-mode {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body.library-mode .chrome {
  display: none;
}

[hidden] {
  display: none !important;
}

button {
  color: inherit;
  font: inherit;
}

.library-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 0 0 56px;
}

.library-nav {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #dcd9d3;
}

.library-brand {
  display: block;
  color: #171717;
  text-decoration: none;
}

.library-brand img {
  display: block;
  width: 188px;
  height: auto;
}

.library-nav > span {
  color: #706c65;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.library-hero {
  max-width: 810px;
  padding: 92px 0 70px;
}

.library-eyebrow {
  margin: 0 0 18px;
  color: #185eeb;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.library-hero h1 {
  margin: 0;
  font-size: clamp(48px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.library-hero > p:last-child {
  max-width: 720px;
  margin: 28px 0 0;
  color: #5f5b55;
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.45;
  letter-spacing: -0.02em;
}

.library-controls {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) 190px 170px;
  gap: 12px;
  margin-bottom: 28px;
}

.library-controls input,
.library-controls select {
  width: 100%;
  height: 50px;
  border: 1px solid #d5d2cc;
  border-radius: 8px;
  outline: none;
  background: #fff;
  color: #262421;
  font: inherit;
}

.library-controls input {
  padding: 0 17px;
}

.library-controls select {
  padding: 0 38px 0 14px;
}

.library-controls input:focus,
.library-controls select:focus {
  border-color: #185eeb;
  box-shadow: 0 0 0 3px rgba(24, 94, 235, 0.12);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.library-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.lesson-card {
  display: flex;
  min-height: 300px;
  flex-direction: column;
  padding: 30px;
  border: 1px solid #dcd9d3;
  border-radius: 10px;
  background: #fff;
  color: #171717;
  text-decoration: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.lesson-card:hover {
  border-color: #b9b5ad;
  box-shadow: 0 18px 45px rgba(31, 29, 25, 0.09);
  transform: translateY(-2px);
}

.lesson-card-topline,
.lesson-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: #77736c;
  font-size: 13px;
}

.lesson-card-topline span:first-child {
  color: #185eeb;
  font-weight: 750;
}

.lesson-card h2 {
  margin: 40px 0 16px;
  font-size: clamp(29px, 3vw, 39px);
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.lesson-card > p {
  margin: 0 0 34px;
  color: #625e57;
  font-size: 17px;
  line-height: 1.5;
}

.lesson-card-meta {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid #ece9e4;
  font-variant-numeric: tabular-nums;
}

.library-empty {
  display: grid;
  grid-column: 1 / -1;
  min-height: 260px;
  place-content: center;
  gap: 8px;
  border: 1px dashed #c9c5bd;
  border-radius: 10px;
  color: #77736c;
  text-align: center;
}

.library-empty strong {
  color: #282622;
  font-size: 20px;
}

.library-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: 70px;
  padding-top: 24px;
  border-top: 1px solid #dcd9d3;
  color: #77736c;
  font-size: 13px;
}

#canvas {
  position: fixed;
  inset: 0;
  cursor: grab;
  overflow: hidden;
  background-color: #f3f2ef;
  background-image: radial-gradient(circle, rgba(20, 20, 20, 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

#canvas.is-dragging {
  cursor: grabbing;
}

#scene {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  will-change: transform;
}

.slide {
  position: absolute;
  display: flex;
  flex-direction: column;
  width: 1200px;
  height: 760px;
  padding: 72px 84px 62px;
  overflow: hidden;
  border: 1px solid #d8d6d1;
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(31, 29, 25, 0.12);
  -webkit-user-select: none;
  user-select: none;
}

.slide:focus {
  outline: none;
}

.slide.is-artwork {
  height: 675px;
  padding: 0;
  border: 0;
  border-radius: 0;
}

.slide.is-artwork > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.slide-kicker {
  margin: 0 0 16px;
  color: #67645d;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.slide h2 {
  max-width: 1000px;
  margin: 0 0 32px;
  font-size: 52px;
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.slide.has-single-line-headline h2 {
  max-width: none;
  font-size: 46px;
  white-space: nowrap;
  text-wrap: nowrap;
}

.slide-content {
  display: grid;
  flex: 1;
  min-height: 0;
  gap: 50px;
  align-items: start;
}

.slide.has-image .slide-content {
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
}

.slide.is-image .slide-content {
  grid-template-columns: 1fr;
}

.slide.is-image .copy {
  display: none;
}

.slide.is-image .visual {
  justify-content: flex-start;
}

.slide.is-balanced .copy {
  align-self: center;
}

.slide.is-balanced .copy ul {
  gap: 54px;
}

.slide.is-balanced.is-compact .copy p {
  margin-bottom: 22px;
}

.slide.is-balanced.is-compact .copy ul {
  gap: 30px;
}

.slide.is-checklist .slide-content,
.slide.is-cards .slide-content,
.slide.is-steps .slide-content {
  grid-template-columns: 1fr;
}

.slide.is-checklist .copy,
.slide.is-cards .copy,
.slide.is-steps .copy {
  width: 100%;
  align-self: start;
}

.slide.is-checklist .copy {
  align-self: start;
}

.slide.is-checklist h2,
.slide.is-cards h2,
.slide.is-steps h2 {
  margin-bottom: 16px;
}

.slide.is-checklist .copy p {
  max-width: 980px;
  margin-bottom: 24px;
  color: #171717;
  font-size: 28px;
}

.slide.is-checklist .copy ul {
  margin-top: 0;
  padding: 0;
  list-style: none;
  gap: 20px;
}

.slide.is-checklist .copy li {
  display: flex;
  min-height: 74px;
  padding: 18px 26px;
  align-items: center;
  gap: 22px;
  border: 1px solid #dfe6f5;
  border-radius: 12px;
  background: #f7f9fe;
}

.slide.is-checklist .copy li::before {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  border-radius: 50%;
  background: #185eeb;
  color: #fff;
  content: "✓";
  font-size: 23px;
  font-weight: 800;
}

.slide.is-cards .copy ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 4px;
  padding: 0;
  gap: 18px;
  list-style: none;
}

.slide.is-cards.has-3-items .copy ul {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.slide.is-cards .copy li {
  min-height: 124px;
  padding: 24px 26px;
  border: 1px solid #dfe6f5;
  border-radius: 12px;
  background: #f7f9fe;
  font-size: 25px;
}

.slide.is-cards .copy li strong {
  display: block;
  margin-bottom: 9px;
  color: #185eeb;
  font-size: 19px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.slide.is-steps .copy ul {
  margin-top: 4px;
  padding: 0;
  list-style: none;
  counter-reset: lesson-step;
  gap: 18px;
}

.slide.is-steps .copy li {
  position: relative;
  min-height: 56px;
  padding: 7px 0 7px 76px;
  counter-increment: lesson-step;
}

.slide.is-steps .copy li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 2px solid #cdd9f5;
  border-radius: 50%;
  color: #185eeb;
  content: counter(lesson-step);
  font-size: 21px;
  font-weight: 800;
}

.slide.is-outcomes .slide-content,
.slide.is-split .slide-content,
.slide.is-timeline .slide-content,
.slide.is-clock .slide-content,
.slide.is-decision .slide-content,
.slide.is-spectrum .slide-content,
.slide.is-final .slide-content {
  flex: 0 0 auto;
}

.slide.is-outcomes,
.slide.is-split,
.slide.is-timeline,
.slide.is-clock,
.slide.is-decision,
.slide.is-spectrum,
.slide.is-final {
  justify-content: center;
}

.slide.is-outcomes .slide-content,
.slide.is-split .slide-content,
.slide.is-timeline .slide-content,
.slide.is-decision .slide-content,
.slide.is-spectrum .slide-content,
.slide.is-final .slide-content {
  grid-template-columns: 1fr;
}

.slide.is-outcomes h2,
.slide.is-split h2,
.slide.is-timeline h2,
.slide.is-clock h2,
.slide.is-decision h2,
.slide.is-spectrum h2,
.slide.is-final h2 {
  margin-bottom: 16px;
}

.slide.is-outcomes .copy,
.slide.is-split .copy,
.slide.is-timeline .copy,
.slide.is-decision .copy,
.slide.is-spectrum .copy,
.slide.is-final .copy {
  width: 100%;
  align-self: start;
}

.slide.is-outcomes .copy p,
.slide.is-split .copy p,
.slide.is-timeline .copy p,
.slide.is-clock .copy p,
.slide.is-decision .copy p,
.slide.is-spectrum .copy p,
.slide.is-final .copy p {
  max-width: 980px;
  margin-bottom: 30px;
  color: #171717;
  font-size: 28px;
}

.slide.is-outcomes .copy ul {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  padding: 0;
  gap: 34px;
  list-style: none;
  counter-reset: outcome;
}

.slide.is-outcomes .copy li {
  padding-top: 24px;
  border-top: 4px solid #185eeb;
  counter-increment: outcome;
  font-size: 28px;
  font-weight: 680;
}

.slide.is-outcomes .copy li::before {
  display: block;
  margin-bottom: 14px;
  color: #185eeb;
  content: "0" counter(outcome);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.slide.is-split .copy ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 8px 0 0;
  padding: 0;
  gap: 0;
  list-style: none;
}

.slide.is-split .copy li {
  min-height: 230px;
  padding: 38px 42px;
  background: #f1f5ff;
  font-size: 29px;
}

.slide.is-split .copy li + li {
  border-left: 10px solid #fff;
  background: #f5f4f1;
}

.slide.is-split .copy li strong {
  display: block;
  margin-bottom: 20px;
  color: #185eeb;
  font-size: 22px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.slide.is-timeline .copy ul {
  position: relative;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 42px;
  padding: 0;
  gap: 22px;
  list-style: none;
  counter-reset: timeline-step;
}

.slide.is-timeline .copy ul::before {
  position: absolute;
  top: 27px;
  right: 9%;
  left: 9%;
  height: 3px;
  background: #d7e1f8;
  content: "";
}

.slide.is-timeline .copy li {
  position: relative;
  padding-top: 76px;
  counter-increment: timeline-step;
  font-size: 22px;
  line-height: 1.3;
  text-align: center;
}

.slide.is-timeline .copy li::before {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 1;
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  transform: translateX(-50%);
  border: 3px solid #185eeb;
  border-radius: 50%;
  background: #fff;
  color: #185eeb;
  content: counter(timeline-step);
  font-size: 21px;
  font-weight: 800;
}

.slide.is-clock .slide-content {
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 70px;
  align-items: center;
}

.slide.is-clock .copy {
  align-self: center;
}

.slide.is-clock .copy ul {
  margin: 0;
  padding: 0;
  gap: 16px;
  list-style: none;
}

.slide.is-clock .copy li {
  padding: 0 0 13px;
  border-bottom: 2px solid #e3e7ef;
  font-size: 24px;
}

.slide.is-clock .copy li strong {
  color: #185eeb;
}

.clock-visual {
  display: grid;
  place-items: center;
}

.clock-face {
  position: relative;
  width: 250px;
  height: 250px;
  border: 16px solid #185eeb;
  border-radius: 50%;
  background:
    linear-gradient(#185eeb, #185eeb) 50% 12px / 4px 20px no-repeat,
    linear-gradient(#185eeb, #185eeb) 50% calc(100% - 12px) / 4px 20px no-repeat,
    linear-gradient(90deg, #185eeb, #185eeb) 12px 50% / 20px 4px no-repeat,
    linear-gradient(90deg, #185eeb, #185eeb) calc(100% - 12px) 50% / 20px 4px no-repeat,
    #f4f7ff;
  box-shadow: 0 18px 38px rgba(24, 94, 235, 0.18);
}

.clock-hand {
  position: absolute;
  bottom: 50%;
  left: calc(50% - 4px);
  width: 8px;
  border-radius: 8px;
  background: #171717;
  transform-origin: 50% 100%;
}

.clock-hand-hour {
  height: 66px;
  transform: rotate(305deg);
}

.clock-hand-minute {
  height: 88px;
  transform: rotate(38deg);
}

.clock-centre {
  position: absolute;
  top: calc(50% - 11px);
  left: calc(50% - 11px);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #185eeb;
}

.clock-caption {
  margin-top: 20px;
  color: #185eeb;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.slide.is-decision .copy ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 8px 0 0;
  padding: 0;
  gap: 22px 46px;
  list-style: none;
}

.slide.is-decision .copy li {
  position: relative;
  padding: 22px 12px 20px 48px;
  border-bottom: 3px solid #dce4f5;
  font-size: 24px;
}

.slide.is-decision .copy li::before {
  position: absolute;
  top: 24px;
  left: 8px;
  color: #185eeb;
  content: "→";
  font-size: 25px;
  font-weight: 800;
}

.slide.is-decision .copy li strong,
.slide.is-spectrum .copy li strong {
  display: block;
  margin-bottom: 8px;
  color: #185eeb;
  font-size: 19px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.slide.is-spectrum .copy ul {
  position: relative;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 38px 0 0;
  padding: 0;
  gap: 44px;
  list-style: none;
}

.slide.is-spectrum .copy ul::before {
  position: absolute;
  top: 10px;
  right: 12%;
  left: 12%;
  height: 4px;
  background: linear-gradient(90deg, #4ca46f, #185eeb, #dd9444);
  content: "";
}

.slide.is-spectrum .copy li {
  position: relative;
  padding-top: 46px;
  font-size: 25px;
  text-align: center;
}

.slide.is-spectrum .copy li::before {
  position: absolute;
  top: 0;
  left: calc(50% - 12px);
  width: 24px;
  height: 24px;
  border: 5px solid #fff;
  border-radius: 50%;
  background: #185eeb;
  box-shadow: 0 0 0 2px #185eeb;
  content: "";
}

.slide.is-final .copy ul {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 38px;
  padding: 0;
  gap: 0;
  list-style: none;
  counter-reset: final-step;
}

.slide.is-final .copy li {
  min-height: 150px;
  padding: 0 34px;
  border-left: 2px solid #dce2ef;
  counter-increment: final-step;
  font-size: 27px;
  font-weight: 680;
}

.slide.is-final .copy li:first-child {
  padding-left: 0;
  border-left: 0;
}

.slide.is-final .copy li::before {
  display: block;
  margin-bottom: 18px;
  color: #185eeb;
  content: "0" counter(final-step);
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.slide.is-section {
  align-items: center;
  justify-content: center;
  text-align: center;
}

.slide.is-section h2 {
  max-width: none;
  margin: 0;
  font-size: 76px;
}

.slide.is-section .slide-content {
  display: none;
}

.slide.is-comparison {
  align-items: center;
  justify-content: center;
  text-align: center;
}

.slide.is-comparison .comparison-heading {
  display: flex;
  max-width: 1040px;
  margin: 0;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  font-size: 68px;
  line-height: 1.02;
}

.comparison-term {
  display: block;
}

.comparison-vs {
  display: flex;
  width: 330px;
  align-items: center;
  gap: 20px;
  color: #185eeb;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.comparison-vs::before,
.comparison-vs::after {
  height: 2px;
  flex: 1;
  background: #dce6ff;
  content: "";
}

.slide.is-comparison .slide-content {
  display: none;
}

.copy {
  min-width: 0;
}

.copy p,
.copy li {
  font-size: 31px;
  line-height: 1.35;
  letter-spacing: -0.014em;
}

.copy p {
  margin: 0 0 30px;
}

.copy ul {
  display: grid;
  margin: 0;
  padding-left: 1.15em;
  gap: 28px;
}

.copy li::marker {
  color: #185eeb;
}

.copy li strong {
  font-weight: 750;
}

.slide-source-link {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-color: #8ea8df;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.slide-source-link:hover,
.slide-source-link:focus-visible {
  color: #185eeb;
  text-decoration-style: solid;
}

.example {
  margin-top: 34px;
  padding: 20px 24px;
  border-left: 7px solid #185eeb;
  background: #f1f5ff;
  font-size: 27px;
  line-height: 1.35;
}

.example strong {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.slide.has-dark-example .copy {
  align-self: center;
}

.slide.has-dark-example .example {
  margin-top: 0;
  border-left: 0;
  border-radius: 10px;
  background: #171717;
  color: #fff;
}

.slide.has-dark-example .example strong {
  color: #c9cdc8;
}

.example-lines {
  display: grid;
  gap: 5px;
}

.visual {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  justify-content: center;
  align-self: stretch;
}

.visual img {
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: 100%;
  flex: 0 1 auto;
  border: 1px solid #dadada;
  border-radius: 8px;
  object-fit: contain;
  background: #fafafa;
}

.visual figcaption {
  margin-top: 10px;
  color: #6d6961;
  font-size: 17px;
  line-height: 1.3;
}

.slide-number {
  position: absolute;
  right: 32px;
  bottom: 25px;
  color: #9a968e;
  font-size: 17px;
  font-weight: 700;
}

.chrome {
  position: fixed;
  z-index: 20;
  transition: opacity 160ms ease, transform 160ms ease;
}

body.hide-chrome .zoom-controls,
body.hide-chrome .hint {
  pointer-events: none;
  opacity: 0;
}

body.hide-chrome .lesson-name {
  display: none;
}

.top-bar {
  top: 18px;
  left: 18px;
  display: flex;
  max-width: min(620px, calc(100vw - 180px));
  align-items: center;
  gap: 12px;
}

.icon-button,
.zoom-controls,
.lesson-name,
.hint,
.lesson-menu {
  border: 1px solid rgba(28, 27, 25, 0.14);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 28px rgba(22, 21, 18, 0.1);
  backdrop-filter: blur(12px);
}

.icon-button {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-content: center;
  gap: 4px;
  padding: 0;
  border-radius: 10px;
  cursor: pointer;
}

.icon-button span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: #222;
}

.lesson-name {
  display: flex;
  min-width: 0;
  height: 44px;
  align-items: baseline;
  gap: 10px;
  padding: 11px 15px;
  border-radius: 10px;
}

.lesson-name strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lesson-name span {
  flex: none;
  color: #77736b;
  font-size: 13px;
}

.zoom-controls {
  top: 18px;
  right: 18px;
  display: flex;
  overflow: hidden;
  border-radius: 10px;
}

.zoom-controls button {
  min-width: 42px;
  height: 42px;
  padding: 0 12px;
  border: 0;
  border-right: 1px solid #e5e3df;
  background: transparent;
  cursor: pointer;
}

.zoom-controls button:last-child {
  border-right: 0;
}

#zoom-level {
  min-width: 68px;
  font-size: 13px;
  font-weight: 700;
}

.hint {
  right: 18px;
  bottom: 18px;
  padding: 9px 12px;
  border-radius: 8px;
  color: #656159;
  font-size: 12px;
}

.lesson-menu {
  top: 72px;
  left: 18px;
  width: min(350px, calc(100vw - 36px));
  max-height: calc(100vh - 90px);
  overflow: auto;
  padding: 16px;
  border-radius: 12px;
}

.lesson-menu[hidden] {
  display: none;
}

.menu-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 3px 4px 12px;
}

.menu-section-title {
  margin: 14px 4px 7px;
  color: #858078;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.menu-actions {
  display: grid;
  gap: 5px;
}

.menu-action {
  width: 100%;
  padding: 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.menu-action:hover {
  background: #eef3ff;
}

.menu-action strong,
.menu-action span {
  display: block;
}

.menu-action span {
  margin-top: 4px;
  color: #77736b;
  font-size: 13px;
  line-height: 1.3;
}

.text-button {
  border: 0;
  background: transparent;
  color: #185eeb;
  cursor: pointer;
}

.menu-home {
  display: block;
  margin: 0 0 4px;
  padding: 12px;
  border-radius: 8px;
  color: inherit;
  text-decoration: none;
}

.menu-home:hover {
  background: #eef3ff;
}

.menu-home strong,
.menu-home span {
  display: block;
}

.menu-home span {
  margin-top: 4px;
  color: #77736b;
  font-size: 13px;
}

.current-lesson-stat {
  margin: 6px 12px 10px;
  color: #88837a;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 700px) {
  .library-shell {
    width: min(100% - 30px, 1180px);
    padding-bottom: 32px;
  }

  .library-nav {
    min-height: 66px;
  }

  .library-nav > span {
    font-size: 12px;
  }

  .library-brand img {
    width: 165px;
  }

  .library-hero {
    padding: 62px 0 48px;
  }

  .library-controls,
  .library-grid {
    grid-template-columns: 1fr;
  }

  .lesson-card {
    min-height: 270px;
    padding: 24px;
  }

  .lesson-card h2 {
    margin-top: 34px;
  }

  .library-footer {
    align-items: flex-start;
    flex-direction: column;
    margin-top: 48px;
  }

  .hint {
    display: none;
  }
}