@font-face {
  font-family: Field;
  src: url('assets/geist-variable.woff2') format('woff2');
  font-display: swap;
  font-weight: 100 900;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: #f4f1e7;
  color: #272c25;
  font:
    16px/1.6 Field,
    Arial,
    sans-serif;
}
a {
  color: inherit;
  text-underline-offset: 5px;
}
button,
input,
select,
textarea {
  font: inherit;
}
button {
  cursor: pointer;
}
button,
a,
input,
select,
textarea {
  outline-offset: 5px;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid #b44020;
}
img {
  display: block;
  width: 100%;
  height: auto;
}
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.055em;
}
h1 {
  font-size: clamp(48px, 6.8vw, 98px);
}
h2 {
  font-size: clamp(34px, 4.7vw, 64px);
}
h3 {
  font-size: 28px;
}
p {
  max-width: 62ch;
}
.skip {
  position: fixed;
  top: -80px;
  left: 20px;
  background: #fff;
  padding: 14px;
  z-index: 30;
}
.skip:focus {
  top: 10px;
}
[hidden] {
  display: none !important;
}
.header {
  padding: 25px 5%;
  display: flex;
  gap: 30px;
  align-items: center;
  border-bottom: 1px solid #c9cbbd;
}
.brand {
  font-size: 29px;
  letter-spacing: -1.8px;
  text-decoration: none;
  font-weight: 600;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand i {
  display: inline-block;
  width: 23px;
  height: 27px;
  border: 2px solid;
  transform: rotate(-9deg);
  background: linear-gradient(
    90deg,
    transparent 45%,
    #272c25 45% 53%,
    transparent 53%
  );
}
nav {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 14px;
}
nav a {
  text-decoration: none;
}
nav a[aria-current='page'] {
  text-decoration: underline;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 25px;
  min-height: 48px;
  padding: 13px 22px;
  background: #272c25;
  color: #fff;
  border: 1px solid #272c25;
  border-radius: 3px;
  text-decoration: none;
  font-size: 14px;
}
.button.light {
  background: #f4f1e7;
  color: #272c25;
}
.button:hover {
  background: #414d37;
  color: #fff;
}
.button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 22px;
}
.hero {
  display: grid;
  grid-template-columns: 1fr 1.07fr;
  align-items: center;
  gap: 5%;
  padding: 72px 5% 86px;
  overflow: hidden;
}
.hero h1 {
  max-width: 680px;
}
.hero h1 em {
  font-family: Georgia, serif;
  font-weight: 400;
}
.hero p {
  margin: 28px 0 32px;
  font-size: 18px;
  max-width: 430px;
}
.hero-art {
  position: relative;
  min-height: 560px;
  display: grid;
  place-items: center;
  background: #e9e3d6;
  border-radius: 50% 50% 3px 3px;
}
.hero-art img {
  width: 88%;
  transform: rotate(-7deg);
  box-shadow: 14px 25px 0 #272c2514;
}
.hero-art .sticker {
  position: absolute;
  right: -10px;
  bottom: 40px;
  width: 136px;
  height: 136px;
  border-radius: 50%;
  background: #d5dc75;
  display: grid;
  place-items: center;
  text-align: center;
  line-height: 1.2;
  font-size: 17px;
  transform: rotate(12deg);
  border: 1px solid #272c25;
}
.rail {
  display: flex;
  gap: 35px;
  padding: 24px 5%;
  justify-content: space-between;
  background: #d6dcbb;
  font-size: 14px;
}
.section {
  padding: 90px 5%;
}
.section-top {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 35px;
  margin-bottom: 45px;
}
.section-top p {
  max-width: 330px;
  font-size: 17px;
}
.course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}
.course-art {
  display: block;
  overflow: hidden;
  background: #e5dfcf;
  aspect-ratio: 4/5;
}
.course-art img {
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s;
}
.course-art:hover img {
  transform: scale(1.025);
}
.course-info {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  margin: 20px 0 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.course h3 a {
  text-decoration: none;
}
.course p {
  margin: 16px 0 22px;
  color: #555d4e;
  font-size: 15px;
}
.manifesto {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 12%;
  background: #304a43;
  color: #f6f1e3;
}
.manifesto p {
  font-size: 19px;
  margin-top: 24px;
}
.manifesto ol {
  padding: 0;
  list-style: none;
  margin: 0;
  display: grid;
  gap: 36px;
  counter-reset: principle;
}
.manifesto li {
  counter-increment: principle;
  display: grid;
  grid-template-columns: 45px 1fr;
  gap: 18px;
}
.manifesto li:before {
  content: counter(principle);
  font-family: Georgia, serif;
  font-size: 48px;
  font-style: italic;
}
.manifesto li p {
  font-size: 16px;
  margin-top: 12px;
}
.sample-section {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 10%;
  align-items: center;
}
.sample-section h2 {
  margin-bottom: 25px;
}
.sample-section p {
  margin-bottom: 28px;
  font-size: 18px;
}
.sample-poster {
  background: #df5c36;
  padding: 40px;
  min-height: 440px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: rotate(3deg);
  color: #221d15;
  box-shadow: 16px 15px 0 #ddd7c4;
}
.sample-poster b {
  font-size: clamp(55px, 7vw, 96px);
  line-height: 0.9;
  letter-spacing: -0.07em;
  font-weight: 500;
}
.sample-poster span {
  font-family: Georgia, serif;
  font-size: 25px;
}
.faq {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 12%;
  border-top: 1px solid #c9cbbd;
}
details {
  border-bottom: 1px solid #c9cbbd;
  padding: 22px 0;
}
summary {
  cursor: pointer;
  font-size: 18px;
}
details p {
  margin-top: 15px;
  color: #555d4e;
}
.closing {
  background: #d6dcbb;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
}
.footer {
  padding: 42px 5%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.footer p {
  font-size: 12px;
  max-width: 520px;
  color: #555d4e;
}
.footer nav {
  justify-content: flex-end;
}
.intro {
  padding: 65px 5% 45px;
  max-width: 1200px;
}
.intro p {
  font-size: 19px;
  margin-top: 25px;
}
.filters {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: end;
  margin-bottom: 35px;
}
.filters label {
  display: grid;
  gap: 8px;
  font-size: 14px;
}
.filters input,
.filters select {
  border: 1px solid #aaaf9e;
  padding: 12px;
  background: #fff;
  min-height: 48px;
  border-radius: 3px;
}
.filters input {
  width: min(340px, 75vw);
}
.status {
  font-size: 14px;
  color: #424b3c;
  display: block;
  min-height: 24px;
  margin: 18px 0;
}
.lesson-head {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 8%;
  padding: 55px 5%;
  align-items: center;
}
.lesson-head h1 {
  font-size: clamp(45px, 6vw, 76px);
}
.lesson-head p {
  margin-top: 25px;
  font-size: 18px;
}
.lesson-head img {
  max-height: 380px;
  object-fit: cover;
}
.lesson-body {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 7%;
  padding: 40px 5% 80px;
}
.lesson-nav {
  position: sticky;
  top: 25px;
  align-self: start;
  display: grid;
  gap: 16px;
  font-size: 14px;
}
.lesson-nav a {
  text-decoration: none;
  border-left: 2px solid #bec4b1;
  padding: 8px 15px;
}
.lesson-nav a[aria-current='page'] {
  border-color: #ad3f22;
  font-weight: 600;
}
.lesson-copy {
  max-width: 800px;
}
.lesson-copy h2 {
  font-size: 36px;
  margin: 0 0 24px;
}
.lesson-copy p {
  font-size: 18px;
  margin-bottom: 24px;
  line-height: 1.8;
}
.lesson-copy ol {
  padding-left: 22px;
  margin: 25px 0 45px;
}
.lesson-copy li {
  padding: 8px 0;
}
.lab {
  margin: 50px 0;
  border: 1px solid #bac0aa;
  border-radius: 4px;
  overflow: hidden;
  background: #fff;
}
.lab-bar {
  padding: 18px 25px;
  background: #e9ecdf;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}
.lab-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  padding: 25px;
  border-bottom: 1px solid #ced3c0;
}
.lab-controls label {
  display: grid;
  gap: 7px;
  font-size: 14px;
  flex: 1;
  min-width: 125px;
}
.lab-controls input:not([type='color']),
.lab-controls select {
  max-width: 100%;
  min-height: 42px;
  accent-color: #414d37;
}
.lab-controls input[type='color'] {
  width: 100%;
  height: 44px;
  border: 1px solid #aaa;
  background: white;
}
.specimen {
  padding: 40px;
  min-height: 320px;
  transition:
    background-color 0.2s,
    color 0.2s;
}
.specimen h3 {
  font-size: 48px;
  margin-bottom: 25px;
}
.specimen p {
  font-size: 18px;
  max-width: 45ch;
}
.specimen .specimen-label {
  font: 12px Field;
  margin-bottom: 35px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.lab-result {
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 22px;
  background: #e9ecdf;
  flex-wrap: wrap;
}
.lab-result output {
  font-size: 14px;
}
.lab-result strong {
  font-size: 23px;
}
.type-specimen p {
  max-width: var(--measure, 38ch);
  font-size: var(--size, 20px);
  line-height: var(--leading, 1.6);
}
.layout-specimen {
  display: grid;
  grid-template-columns: var(--columns, 2fr 1fr);
  gap: var(--gap, 24px);
  align-items: center;
}
.layout-specimen img {
  aspect-ratio: 1;
  object-fit: cover;
}
.layout-specimen h3 {
  font-size: 35px;
}
.layout-specimen p {
  font-size: 16px;
}
.layout-specimen.narrow {
  max-width: 360px;
  margin: auto;
  grid-template-columns: 1fr;
}
.reflection {
  padding: 28px;
  background: #e4e8d4;
}
.reflection h3 {
  margin-bottom: 18px;
}
.reflection p {
  font-size: 16px;
}
.reflection textarea {
  display: block;
  width: 100%;
  min-height: 150px;
  padding: 16px;
  border: 1px solid #aeb79b;
  background: #fff;
  margin: 20px 0;
}
.lesson-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.notebook {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 8%;
  padding: 10px 5% 80px;
}
.notebook-aside {
  background: #d6dcbb;
  padding: 30px;
  align-self: start;
}
.notebook-aside h2 {
  font-size: 38px;
  margin-bottom: 20px;
}
.notebook-aside p {
  font-size: 15px;
}
.notebook-list {
  display: grid;
  gap: 30px;
}
.note {
  padding: 25px 0;
  border-bottom: 1px solid #c9cbbd;
}
.note h2 {
  font-size: 32px;
  margin-bottom: 16px;
}
.note p {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin-bottom: 20px;
}
.note pre {
  white-space: pre-wrap;
  font-size: 14px;
  padding: 18px;
  background: #e9ecdf;
  overflow-wrap: anywhere;
}
.note .button {
  margin-top: 20px;
}
.empty {
  padding: 35px;
  background: #e9ecdf;
}
.empty h2 {
  font-size: 35px;
  margin-bottom: 20px;
}
.empty p {
  margin-bottom: 25px;
}
.danger {
  background: transparent;
  border: 1px solid #727c63;
  min-height: 44px;
  padding: 10px 15px;
  margin-top: 15px;
  font-size: 14px;
}
.fade-in {
  animation: arrive 0.6s both;
}
@keyframes arrive {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@media (max-width: 950px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    padding-top: 45px;
  }
  .hero-art {
    min-height: 440px;
  }
  .hero h1 {
    font-size: 66px;
  }
  .hero-art .sticker {
    width: 105px;
    height: 105px;
    font-size: 14px;
  }
  .course-grid {
    gap: 18px;
  }
  .lesson-body {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 4%;
  }
  .lesson-head {
    gap: 5%;
  }
  .specimen {
    padding: 26px;
  }
  .lab-controls {
    gap: 15px;
  }
  .manifesto,
  .faq {
    gap: 7%;
  }
}
@media (max-width: 700px) {
  .header {
    padding: 19px 5%;
    flex-wrap: wrap;
    gap: 18px;
  }
  .brand {
    font-size: 27px;
  }
  .header nav {
    width: 100%;
    justify-content: space-between;
    gap: 15px;
    font-size: 14px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 45px;
    padding: 45px 5% 55px;
  }
  .hero h1 {
    font-size: clamp(52px, 12vw, 72px);
    max-width: 620px;
  }
  .hero p {
    font-size: 17px;
  }
  .hero-art {
    min-height: 390px;
    max-width: 490px;
    width: 100%;
    margin: auto;
  }
  .hero-art img {
    width: 74%;
  }
  .hero-art .sticker {
    right: 10px;
    bottom: 25px;
  }
  .rail {
    flex-wrap: wrap;
    gap: 14px 30px;
  }
  .section {
    padding: 60px 5%;
  }
  .section-top {
    display: block;
  }
  .section-top p {
    margin-top: 25px;
  }
  .course-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .course-art {
    aspect-ratio: 5/4;
  }
  .manifesto,
  .sample-section,
  .faq,
  .lesson-head,
  .notebook {
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .sample-poster {
    min-height: 350px;
    transform: rotate(1deg);
    margin-right: 10px;
  }
  .closing {
    display: block;
  }
  .closing .button {
    margin-top: 30px;
  }
  .footer {
    grid-template-columns: 1fr;
  }
  .footer nav {
    justify-content: start;
    flex-wrap: wrap;
  }
  .intro {
    padding-top: 40px;
  }
  .lesson-head {
    padding-top: 40px;
  }
  .lesson-head img {
    max-height: 260px;
  }
  .lesson-body {
    display: block;
    padding-top: 10px;
  }
  .lesson-nav {
    position: static;
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 40px;
    gap: 8px;
  }
  .lesson-nav a {
    padding: 8px 10px;
    font-size: 14px;
  }
  .lesson-copy p {
    font-size: 17px;
  }
  .specimen h3 {
    font-size: 40px;
  }
  .lab-controls {
    padding: 20px;
    gap: 20px;
  }
  .specimen {
    padding: 25px;
  }
  .layout-specimen {
    grid-template-columns: 1fr;
  }
  .layout-specimen img {
    max-height: 260px;
  }
  .notebook {
    padding-top: 10px;
  }
  .notebook-aside {
    padding: 25px;
  }
  .reflection {
    padding: 22px;
  }
  .lab-result {
    padding: 20px;
  }
  .hero-art .sticker {
    border-radius: 50%;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}

.course p, .notebook-aside p { font-size: 16px; }