:root {
  --teal: #0d7a6f;
  --grafit: #2c3332;
  --meja: #f4f7f6;
  --garis: #d5e0dc;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  background: var(--meja);
  color: var(--grafit);
  line-height: 1.7;
}
h1, h2, h3 { font-weight: 650; letter-spacing: .02em; }
a { color: var(--teal); }
.pipet { height: 4px; background: var(--teal); }
.meja-atas {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 5vw;
  background: #fff;
  border-bottom: 1px solid var(--garis);
}
.meja-atas img { width: 52px; height: 52px; }
.meja-atas h1 { margin: 0; font-size: 22px; }
.meja-atas h1 a { color: inherit; text-decoration: none; }
.meja-atas p { margin: 2px 0 0; color: var(--teal); font-size: 12px; }
.rak-reagen {
  display: flex;
  flex-wrap: wrap;
  background: var(--grafit);
}
.rak-reagen a {
  color: #e8f3f1;
  text-decoration: none;
  padding: 11px 16px;
  font-size: 14px;
}
.rak-reagen a:hover, .rak-reagen a.aktif { background: var(--teal); color: #fff; }
.bangku { width: min(980px, 92vw); margin: 28px auto 70px; }
.hero-lab {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 24px;
}
.hero-lab h2 { margin: 0 0 12px; font-size: clamp(26px, 4vw, 38px); line-height: 1.2; }
.hero-lab img { width: 100%; border: 1px solid var(--garis); background: #fff; }
.peringatan {
  background: #fff8e8;
  border-left: 4px solid #c9a227;
  padding: 12px 16px;
  font-size: 14px;
  margin: 16px 0 24px;
}
.kartu {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}
.kartu a {
  background: #fff;
  border: 1px solid var(--garis);
  padding: 18px 16px;
  text-decoration: none;
  color: inherit;
}
.kartu h3 { margin: 0 0 8px; color: var(--teal); }
.lembar {
  background: #fff;
  border: 1px solid var(--garis);
  padding: 28px 30px;
}
.lembar h2 { margin-top: 0; }
.tombol {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  text-decoration: none;
  padding: 10px 16px;
}
table.daftar { width: 100%; border-collapse: collapse; font-size: 15px; }
table.daftar th, table.daftar td {
  border-bottom: 1px solid var(--garis);
  padding: 8px 6px;
  text-align: left;
}
.kaki-lab {
  background: #fff;
  border-top: 1px solid var(--garis);
  padding: 24px 5vw 40px;
  font-size: 13px;
}
.kaki-lab a { margin-right: 12px; }
@media (max-width: 800px) {
  .hero-lab, .kartu { grid-template-columns: 1fr; }
}