:root {
  color-scheme: light;
  --ink: #172033;
  --purple: #6d38e8;
  --soft: #f4f0ff;
  --line: #d9dce8;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: var(--ink);
  background: #faf9ff;
  font:
    16px/1.55 system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}
header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 1rem max(1.25rem, calc((100% - 1080px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
header a {
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}
header img {
  width: 38px;
  vertical-align: middle;
  margin-right: 0.55rem;
}
main {
  width: min(100% - 2rem, 1080px);
  margin: 2rem auto 4rem;
}
.intro {
  background: linear-gradient(135deg, #eee7ff, #fff);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid #ddd2ff;
  border-radius: 24px;
}
h1 {
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
  margin: 0.2rem 0 1rem;
}
.band-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 2rem;
}
.band-nav a,
.back {
  display: inline-block;
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  background: var(--purple);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}
.lesson {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  margin: 1.5rem 0;
}
.resource,
.starter-section {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  margin: 1.5rem 0;
}
.resource {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: clamp(1rem, 4vw, 2.5rem);
  align-items: start;
}
.resource img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 12px 30px rgb(40 25 90 / 0.14);
}
.kicker {
  color: var(--purple);
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.starter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
}
.starter-grid article {
  padding: 1rem;
  border: 1px solid #ddd2ff;
  border-radius: 14px;
  background: var(--soft);
}
.starter-grid article p {
  margin: 0.45rem 0;
}
.starter-grid article span {
  color: #5f687c;
  font-size: 0.9rem;
  font-weight: 700;
}
.meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.7rem;
  padding: 1rem;
  background: var(--soft);
  border-radius: 14px;
}
@media (max-width: 760px) {
  .resource,
  .starter-grid {
    grid-template-columns: 1fr;
  }
}
h2 {
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  margin-top: 0;
}
h3 {
  margin-top: 1.6rem;
}
.teks {
  border-left: 5px solid var(--purple);
  padding: 0.2rem 1rem;
  background: #fbfaff;
}
li + li {
  margin-top: 0.35rem;
}
.note {
  font-size: 0.92rem;
  color: #5f687c;
}
@media print {
  header,
  .band-nav,
  .back {
    display: none;
  }
  body {
    background: #fff;
  }
  .lesson {
    break-before: page;
    border: 0;
  }
  .lesson:first-of-type {
    break-before: auto;
  }
}