/* Satu kolom baca sekitar 68ch. Serumpun RegulasiEnergi.com dan RegulasiAir.com: tinta biru, aksen hijau klinik. */
:root {
  --dasar: #f2f5f3;
  --permukaan: #e4ebe7;
  --tinta: #14213d;
  --redup: #4a5a56;
  --garis: #c3cec8;
  --aksen: #1b6b53;      /* hijau tua untuk tautan, kontras di atas dasar terang */
  --sinyal: #1f9a72;     /* penanda dan cincin fokus, tidak untuk teks */
  --sinyal-lembut: #1f9a7226;
  --huruf: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --dasar: #0f1815;
    --permukaan: #15221e;
    --tinta: #e6ece9;
    --redup: #a3b3ad;
    --garis: #263630;
    --aksen: #5fd3a8;
    --sinyal: #3cc79a;
    --sinyal-lembut: #3cc79a1f;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--dasar);
  color: var(--tinta);
  font-family: var(--huruf);
  font-size: 1.0625rem;
  line-height: 1.65;
}
.bingkai {
  max-width: 46rem;
  margin: 0 auto;
  padding-inline: 1.25rem;
  padding-block: 0 3rem;
  display: grid;
  gap: 3rem;
}
.isi { display: grid; gap: 3rem; }
a { color: var(--aksen); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--sinyal); outline-offset: 2px; border-radius: 2px; }
h1, h2 { text-wrap: balance; line-height: 1.2; margin: 0; }
h2 { font-size: 1.3rem; }
p { margin: 0; }

/* Kepala */
.kepala {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.75rem; padding-block: 1.25rem; border-bottom: 1px solid var(--garis);
}
.merek { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; color: var(--tinta); text-decoration: none; font-size: 1.05rem; }
.merek img { width: 2rem; height: 2rem; }
.saudara { font-size: 0.9rem; color: var(--redup); }

/* Pembuka */
.pembuka { display: grid; gap: 1.1rem; }
.status {
  display: inline-flex; align-items: center; gap: 0.5rem; justify-self: start;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--redup); border: 1px solid var(--garis); padding: 0.2rem 0.6rem; border-radius: 3px;
}
.status::before { content: ""; width: 0.55rem; height: 0.55rem; background: var(--sinyal); }
.pembuka h1 { font-size: clamp(1.75rem, 4.5vw, 2.5rem); letter-spacing: -0.01em; }
.pembuka .lead { font-size: 1.15rem; color: var(--redup); max-width: 62ch; }
.pembuka .terbit { max-width: 62ch; border-left: 4px solid var(--sinyal); padding-left: 0.8rem; }

.bagian { display: grid; gap: 1.1rem; }
.aturan { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.65rem; }
.aturan li { display: grid; grid-template-columns: 0.9rem 1fr; gap: 0.75rem; align-items: baseline; }
.aturan li::before { content: ""; width: 0.55rem; height: 0.55rem; border: 2px solid var(--tinta); transform: translateY(-0.05rem); }

/* Kaki */
.kaki { border-top: 1px solid var(--garis); padding-top: 1.5rem; display: grid; gap: 0.75rem; font-size: 0.92rem; color: var(--redup); }
.penafian { font-size: 0.9rem; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }