/* ==========================================================================
   bentang.co.id v3 — 90-page-produk
   Template produk, paket, dan halaman daftar. Semua ukuran memakai token;
   tidak ada bayangan, radius di luar 0/4/6/8 px, atau warna baru.
   ========================================================================== */

/* ------------------------------------------- ringkasan empat sel (produk) --- */
.spec {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 40px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.spec > div {
  padding: 16px 20px 20px 0;
}
.spec > div + div {
  padding-left: 20px;
  border-left: 1px solid var(--line-soft);
}
.spec .k {
  display: block;
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.spec .v {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
  line-height: 1.45;
  color: var(--ink);
}

/* --------------------------------------- dua kolom + rail lengket (produk) --- */
.prod-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.rail {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding: 20px 22px 22px;
  border-radius: var(--r);
  background-color: var(--paper-2);
}
.rail h2 {
  font-size: .75rem;
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}
.rail ul {
  margin-top: 12px;
  padding-left: 0;
  list-style: none;
}
.rail li {
  padding-block: 8px;
  border-bottom: 1px solid var(--line-soft);
  font-size: .875rem;
  line-height: 1.5;
  color: var(--body);
}
.rail li:last-child { border-bottom: 0; }
.rail-note {
  margin-top: 14px;
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--muted);
}

/* -------------------------------------- penanda seksi menggantung (§ 01) --- */
.clause { position: relative; }
.num-clause {
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------- badan baca (prose) --- */
.copy { max-width: 68ch; }
.copy h2 {
  margin: 40px 0 12px;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -.01em;
  line-height: 1.25;
}
.copy h2:first-child { margin-top: 0; }
.copy h3 {
  margin: 28px 0 8px;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -.01em;
}
.copy p { margin-bottom: 12px; font-size: 1rem; line-height: 1.62; color: var(--body); }
.copy ul, .copy ol { margin: 8px 0 16px; padding-left: 20px; }
.copy ul { list-style: disc; }
.copy ol { list-style: decimal; }
.copy li { margin-bottom: 6px; font-size: 1rem; line-height: 1.6; color: var(--body); }
.copy a { color: var(--navy); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.copy strong { color: var(--ink); font-weight: 500; }

/* --------------------------------------- daftar baris bergaris (induk) --- */
.rows {
  border-top: 1px solid var(--ink);
}
.rows > li { border-bottom: 1px solid var(--line-soft); }
.rows a,
.rows .row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) minmax(0, 220px) 20px;
  gap: 24px;
  align-items: baseline;
  padding-block: 22px;
  transition: background-color 200ms var(--ease-inout);
}
.rows a:hover { background-color: var(--paper-2); }
.rows .row-num {
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.rows .row-title {
  display: block;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--ink);
  transition: transform 300ms var(--ease-out);
}
.rows a:hover .row-title { transform: translateX(8px); }
.rows .row-desc {
  display: block;
  margin-top: 6px;
  max-width: 58ch;
  font-size: .9375rem;
  line-height: 1.55;
  color: var(--body);
}
.rows .row-meta {
  font-family: var(--mono);
  font-size: .75rem;
  line-height: 1.5;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.rows .row-arrow {
  font-size: 1rem;
  color: var(--muted);
  opacity: 0;
  transition: opacity 300ms var(--ease-out);
}
.rows a:hover .row-arrow { opacity: 1; }

/* ------------------------------------------------------- FAQ <details> --- */
.faq {
  max-width: 76ch;
  margin-top: 8px;
  border-top: 1px solid var(--ink);
}
.faq details { border-bottom: 1px solid var(--line-soft); }
.faq summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-block: 18px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::marker { content: ""; }
.faq summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: .875rem;
  color: var(--muted);
}
.faq details[open] summary::after { content: "–"; }
.faq .faq-body {
  padding-bottom: 18px;
  max-width: 68ch;
}
.faq .faq-body p { font-size: .9375rem; line-height: 1.6; color: var(--body); }
.faq .faq-body p + p { margin-top: 8px; }

/* --------------------------------------------- langkah + keluaran (alur) --- */
.steps .step-out {
  margin-top: 10px;
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--muted);
}
.steps .step-out span {
  display: block;
  margin-bottom: 2px;
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ------------------------------------------------------------- responsif --- */
@media (max-width: 900px) {
  .spec { grid-template-columns: 1fr 1fr; }
  .spec > div:nth-child(3) { border-left: 0; padding-left: 0; }
  .spec > div:nth-child(n + 3) { border-top: 1px solid var(--line-soft); }
  .prod-grid { grid-template-columns: 1fr; gap: 40px; }
  .rail { position: static; }
  .rows a,
  .rows .row { grid-template-columns: 36px minmax(0, 1fr); gap: 12px 16px; padding-block: 18px; }
  .rows .row-meta { grid-column: 2; }
  .rows .row-arrow { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .rows .row-title,
  .rows .row-arrow { transition: none; }
}