body {
  background: var(--ink);
  color: var(--paper);
  line-height: 1.65;
}

code {
  padding: 3px 7px;
  border: 1px solid rgba(8, 11, 16, .16);
  background: #10141b;
  color: #f1f0ea;
  font: 500 .9em DM Mono, monospace;
}

.challenge-hero {
  min-height: calc(100svh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: clamp(28px, 6vw, 88px);
  align-items: end;
  padding: clamp(90px, 12vw, 150px) clamp(24px, 7vw, 110px) clamp(70px, 9vw, 110px);
}

.challenge-hero-inner,
.hero-panel {
  position: relative;
  z-index: 1;
}

.challenge-hero-inner {
  width: min(100%, 880px);
}

.challenge-hero h1 {
  margin: 24px 0 0;
  max-width: 900px;
  font-size: clamp(58px, 8vw, 116px);
  line-height: .88;
  letter-spacing: -.06em;
}

.challenge-hero h1 em {
  color: var(--lime);
  font-style: normal;
}

.challenge-hero p:not(.page-kicker) {
  max-width: 720px;
  margin: 34px 0 0;
  color: #c9cbc4;
  font-size: clamp(17px, 1.6vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.download-button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding: 0 18px;
  border: 1px solid var(--line);
  color: var(--paper);
  font: 700 12px DM Mono, monospace;
  text-decoration: none;
  text-transform: uppercase;
}

.download-button.primary,
.download-button:hover {
  border-color: var(--lime);
  background: var(--lime);
  color: var(--ink);
}

.hero-panel {
  padding: 26px;
  border: 1px solid var(--line);
  background: rgba(16, 20, 27, .78);
}

.hero-panel span,
.hero-panel small,
.section-tag,
.download-card span,
.step-card > span,
.challenge-footer {
  font: 600 10px DM Mono, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.hero-panel span,
.section-tag,
.download-card span,
.step-card > span {
  color: var(--lime);
}

.hero-panel strong {
  display: block;
  margin-top: 24px;
  color: var(--paper);
  font-size: clamp(52px, 6vw, 86px);
  line-height: .9;
  letter-spacing: -.055em;
}

.hero-panel small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
}

main {
  background: var(--paper);
  color: var(--ink);
}

.intro-section,
.data-section,
.columns-section,
.steps-section,
.bonus-section,
.deliverable-section {
  width: min(calc(100% - 48px), var(--content-max));
  margin: 0 auto;
}

.intro-section {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(32px, 7vw, 92px);
  align-items: end;
  padding: clamp(80px, 10vw, 130px) 0;
}

.intro-section h2,
.section-heading h2,
.bonus-section h2,
.deliverable-section h2 {
  margin: 14px 0 0;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -.055em;
}

.intro-section > p,
.section-heading p,
.bonus-section p,
.deliverable-section p {
  color: #565951;
  font-size: 17px;
}

.data-section,
.columns-section,
.bonus-section,
.deliverable-section {
  padding: clamp(70px, 9vw, 115px) 0;
  border-top: 1px solid var(--dark-line);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: clamp(28px, 6vw, 80px);
  align-items: end;
  margin-bottom: 44px;
}

.section-heading.compact {
  display: block;
  max-width: 780px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--dark-line);
  border-left: 1px solid var(--dark-line);
}

.download-card {
  min-height: 230px;
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-right: 1px solid var(--dark-line);
  border-bottom: 1px solid var(--dark-line);
  color: var(--ink);
  text-decoration: none;
}

.download-card strong {
  margin-top: auto;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1;
  letter-spacing: -.045em;
}

.download-card small {
  max-width: 420px;
  margin-top: 14px;
  color: #5b5e56;
  font-size: 14px;
}

.download-card i {
  position: absolute;
  top: 24px;
  right: 24px;
  font-style: normal;
  color: var(--lime-dark);
  font-size: 24px;
}

.download-card:hover {
  background: var(--lime);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--dark-line);
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th,
td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--dark-line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--ink);
  color: var(--lime);
  font: 600 10px DM Mono, monospace;
  letter-spacing: .09em;
  text-transform: uppercase;
}

td:first-child {
  width: 280px;
}

.steps-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0 0 clamp(80px, 10vw, 130px);
  border-top: 1px solid var(--dark-line);
  border-left: 1px solid var(--dark-line);
}

.step-card {
  padding: 28px;
  border-right: 1px solid var(--dark-line);
  border-bottom: 1px solid var(--dark-line);
}

.step-card h3 {
  margin: 18px 0;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.05;
  letter-spacing: -.04em;
}

.step-card ol {
  margin: 0;
  padding-left: 20px;
  color: #4f524b;
}

.step-card li + li {
  margin-top: 10px;
}

.bonus-section {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: clamp(28px, 6vw, 88px);
}

.deliverable-section {
  padding-bottom: clamp(90px, 12vw, 150px);
}

.deliverable-section h2 {
  max-width: 1050px;
}

.deliverable-box {
  max-width: 850px;
  margin-top: 34px;
  padding: 26px;
  border: 1px solid var(--dark-line);
  background: var(--lime);
}

.deliverable-box strong {
  font: 700 10px DM Mono, monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.deliverable-box p {
  margin-bottom: 0;
  color: #30332d;
}

.deliverable-box code {
  border-color: rgba(8, 11, 16, .25);
  background: rgba(8, 11, 16, .08);
  color: var(--ink);
}

.challenge-footer {
  min-height: 96px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 24px clamp(20px, 4vw, 72px);
  border-top: 1px solid var(--line);
  background: var(--ink);
  color: var(--muted);
}

.challenge-footer a {
  color: inherit;
  text-decoration: none;
}

.challenge-footer > a:last-child:hover {
  color: var(--lime);
}

@media (max-width: 900px) {
  .challenge-hero,
  .intro-section,
  .section-heading,
  .bonus-section {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    max-width: 420px;
  }

  .steps-section,
  .download-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .challenge-hero {
    min-height: auto;
    padding: 78px 20px 62px;
  }

  .challenge-hero h1 {
    font-size: 50px;
  }

  .download-button {
    width: 100%;
  }

  .intro-section,
  .data-section,
  .columns-section,
  .steps-section,
  .bonus-section,
  .deliverable-section {
    width: calc(100% - 40px);
  }

  .intro-section h2,
  .section-heading h2,
  .bonus-section h2,
  .deliverable-section h2 {
    font-size: 36px;
  }

  .download-card,
  .step-card,
  .deliverable-box {
    padding: 22px;
  }

  .challenge-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}