/* =========================================================
   PAKSI.STUDIO, satu stylesheet untuk seluruh situs (id + en).
   Dunia visual: rak etalase toko buku. Sampul berdiri menghadap depan
   di atas papan rak per jenjang; harga menempel di label tepi rak.
   Semua judul diperlakukan sama. Serif hanya milik sampul.
   Halaman dihasilkan dari _sumber/ (node _sumber/bangun.mjs).
   ========================================================= */

:root {
  --dinding: #ECEDE9;
  --dinding-2: #E3E4DF;
  --kertas: #FBFBF9;
  --tinta: #151619;
  --tinta-2: #45484E;
  --tinta-3: #5C6068;
  --garis: #CFD1CB;
  --garis-kuat: #8E9199;
  --kayu: #3A2E26;
  --kayu-tepi: #5C4A3D;
  --kayu-bawah: #241C17;
  --bayang: rgba(20, 16, 12, .42);
  --fokus: #1E3A5F;
  --galat: #A3261B;
  --baik: #1B4D3E;
  --j0: #1B4D3E; --j1: #1E3A5F; --j2: #B95A2E; --j3: #5B2C6F; --j4: #2F4A3A;
  --huruf: 'Schibsted Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --huruf-logo: 'Outfit', 'Schibsted Grotesk', system-ui, sans-serif; /* hanya wordmark */
  --nyala: #00D2FF; /* titik logo: cyan menyala, satu-satunya warna di luar lima jenjang */
  --buku: clamp(104px, 10.6vw, 150px);
  --papan: 14px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --dinding: #141517;
    --dinding-2: #1B1C1F;
    --kertas: #202125;
    --tinta: #EDEDE9;
    --tinta-2: #B3B5BA;
    --tinta-3: #9A9DA3;
    --garis: #34363B;
    --garis-kuat: #6E717A;
    --kayu: #5A4739;
    --kayu-tepi: #85705F;
    --kayu-bawah: #3A2D24;
    --bayang: rgba(0, 0, 0, .7);
    --fokus: #9DB8DC;
    --galat: #FF8A7A;
    --baik: #7FC7A9;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--dinding);
  color: var(--tinta);
  font-family: var(--huruf);
  font-size: 17px;
  line-height: 1.6;
  font-feature-settings: 'ss01';
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  caret-color: var(--j2);
  accent-color: var(--j1);
}
::selection { background: var(--j1); color: #fff; }
html { scrollbar-color: var(--garis-kuat) var(--dinding); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--fokus); outline-offset: 3px; }
h1, h2, h3 { margin: 0; line-height: 1.05; text-wrap: balance; font-weight: 800; letter-spacing: -.028em; }
h1 { font-size: clamp(40px, 6.2vw, 88px); }
h2 { font-size: clamp(28px, 3.6vw, 46px); letter-spacing: -.024em; }
h3 { font-size: 19px; letter-spacing: -.012em; line-height: 1.25; font-weight: 750; }
p { margin: 0 0 1em; text-wrap: pretty; }
b, strong { font-weight: 700; }
.angka, table { font-variant-numeric: tabular-nums; }

.wadah { width: 100%; max-width: 1280px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }
.wadah-sempit { width: 100%; max-width: 780px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }
.lewati { position: absolute; left: 12px; top: -60px; background: var(--tinta); color: var(--dinding); padding: 10px 14px; z-index: 50; }
.lewati:focus { top: 12px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- kepala ---------- */
.kepala { border-bottom: 1px solid var(--garis); background: var(--dinding); position: relative; z-index: 5; }
.kepala .wadah { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.logo { font-family: var(--huruf-logo); font-weight: 800; font-size: 23px; letter-spacing: -.01em; text-decoration: none; display: inline-flex; align-items: baseline; min-height: 44px; align-items: center; }
.logo .titik { display: inline-block; width: .3em; height: .3em; background: var(--nyala); margin: 0 .06em; transform: translateY(.14em); }
.logo .ringan { font-weight: 400; }
.nav { display: flex; align-items: center; gap: clamp(6px, 1.6vw, 22px); }
.nav > a:not(.tombol) { text-decoration: none; font-weight: 600; font-size: 15.5px; padding: 10px 4px; min-height: 44px; display: inline-flex; align-items: center; }
.nav > a:not(.tombol):hover { text-decoration: underline; }
.nav > a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 2px; }
.bahasa { display: inline-flex; border: 1px solid var(--garis-kuat); font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.bahasa > * { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.bahasa > span { background: var(--tinta); color: var(--dinding); }
.bahasa > a:hover { background: var(--dinding-2); }
@media (max-width: 720px) {
  .nav > a.sembunyi { display: none; }
  .nav .tombol { padding: 0 14px; font-size: 14.5px; }
}
@media (max-width: 560px) { .nav > a.tombol-kecil-sembunyi { display: none; } .logo { font-size: 21px; } }

/* ---------- tombol ---------- */
.tombol {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px; border: 1.5px solid var(--tinta);
  background: var(--tinta); color: var(--dinding);
  font: inherit; font-weight: 700; font-size: 16px; letter-spacing: -.005em;
  text-decoration: none; cursor: pointer; border-radius: 2px;
  transition: transform .25s var(--ease), background-color .2s, color .2s;
}
.tombol:hover { transform: translateY(-2px); text-decoration: none; }
.tombol:active { transform: translateY(0); }
.tombol.garis { background: transparent; color: var(--tinta); }
.tombol.garis:hover { background: var(--tinta); color: var(--dinding); }
.tombol.besar { min-height: 56px; font-size: 17px; padding: 0 28px; }
.tombol[disabled], .tombol[data-nonaktif] { background: var(--dinding-2); color: var(--tinta-2); border-color: var(--garis-kuat); cursor: not-allowed; transform: none; }
.tombol svg { width: 18px; height: 18px; flex: none; }
.aksi-baris { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- pembuka beranda ---------- */
.pembuka { padding: clamp(32px, 5vw, 64px) 0 clamp(16px, 2vw, 28px); }
.pembuka-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: end; }
.pembuka h1 { max-width: 13ch; }
.pembuka .antar { font-size: clamp(17px, 1.5vw, 20px); color: var(--tinta-2); max-width: 44ch; margin-bottom: 26px; }
.pembuka .fakta { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, auto); gap: 4px 28px; justify-content: start; }
.pembuka .fakta li { display: flex; flex-direction: column; }
.pembuka .fakta b { font-size: clamp(34px, 3.4vw, 48px); line-height: 1; letter-spacing: -.04em; font-weight: 800; }
.pembuka .fakta span { font-size: 14px; color: var(--tinta-2); line-height: 1.35; margin-top: 6px; }
@media (max-width: 860px) { .pembuka-grid { grid-template-columns: 1fr; } }

/* ---------- RAK: komponen inti ---------- */
.dinding-rak { padding: 8px 0 clamp(40px, 6vw, 80px); }
.rak { position: relative; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x proximity; scrollbar-width: thin; padding-top: 18px; margin-bottom: clamp(18px, 3vw, 34px); -webkit-overflow-scrolling: touch; }
.rak:focus-visible { outline-offset: -3px; }
.rak-deret {
  --tinggi: calc(var(--buku) * 4 / 3);
  list-style: none; margin: 0; padding: 0 18px 0 2px;
  display: flex; align-items: flex-start; gap: clamp(12px, 1.4vw, 20px);
  width: max-content; min-width: 100%; position: relative;
}
.rak-deret::before { /* papan rak */
  content: ''; position: absolute; left: 0; right: 0; top: var(--tinggi); height: var(--papan);
  background: var(--kayu);
  box-shadow: inset 0 2px 0 var(--kayu-tepi), inset 0 -3px 0 var(--kayu-bawah), 0 10px 18px -10px var(--bayang);
  z-index: 0;
}
.rak-deret > li { position: relative; z-index: 1; flex: none; scroll-snap-align: start; }

.pembatas { width: 34px; height: var(--tinggi); display: flex; align-items: flex-end; }
.pembatas > span {
  width: 100%; height: auto; min-height: 80%; background: var(--j); color: #fff;
  display: flex; flex-direction: column; align-items: center; padding: 10px 0; gap: 10px;
  box-shadow: 0 8px 12px -8px var(--bayang);
}
.pembatas b { font-size: 20px; line-height: 1; font-weight: 800; }
.pembatas i { font-style: normal; font-size: 12px; font-weight: 700; letter-spacing: .04em; writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; }
@media (max-width: 600px) { .pembatas i { font-size: 11px; } }

.buku { width: var(--buku); }
.buku > a { display: block; text-decoration: none; color: inherit; }
.buku .sampul-wadah { position: relative; height: var(--tinggi); display: flex; align-items: flex-end; }
.buku .sampul {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover; background: var(--dinding-2);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .25), 0 14px 16px -12px var(--bayang);
  transform-origin: 50% 100%;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), opacity .45s var(--ease), filter .45s var(--ease);
}
.buku .sampul-wadah::after { /* engsel sampul */
  content: ''; position: absolute; left: 5px; bottom: 0; width: 2px; height: calc(var(--buku) * 4 / 3);
  background: rgba(255, 255, 255, .16); box-shadow: 1px 0 0 rgba(0, 0, 0, .18); pointer-events: none;
  transition: transform .45s var(--ease);
}
.buku > a:hover .sampul, .buku > a:focus-visible .sampul { transform: translateY(-10px) rotate(-1.4deg); box-shadow: 0 1px 0 rgba(0, 0, 0, .25), 0 26px 22px -14px var(--bayang); }
.buku > a:hover .sampul-wadah::after, .buku > a:focus-visible .sampul-wadah::after { transform: translateY(-10px) rotate(-1.4deg); }
.buku > a:focus-visible { outline: none; }
.buku > a:focus-visible .label { outline: 3px solid var(--fokus); outline-offset: 2px; }

.label { /* label tepi rak */
  display: block; margin-top: calc(var(--papan) + 6px); background: var(--kertas); color: var(--tinta);
  border: 1px solid var(--garis); padding: 9px 9px 8px; position: relative;
  font-size: 13px; line-height: 1.3;
}
.label::before { /* penjepit label ke papan */ content: ''; position: absolute; left: 10px; top: calc(-6px - 1px); width: 16px; height: 6px; background: var(--j); }
.label .nama { display: block; font-weight: 650; font-size: 13.5px; line-height: 1.25; margin-bottom: 5px; min-height: 2.5em; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.label .harga { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 6px; }
.label b { font-size: 15px; font-weight: 800; letter-spacing: -.01em; }
.label s { color: var(--tinta-3); font-size: 12.5px; }
.label .meta { display: block; color: var(--tinta-2); font-size: 12.5px; margin-top: 2px; }
.buku[aria-current] .label { background: var(--tinta); color: var(--dinding); border-color: var(--tinta); }
.buku[aria-current] .label .meta, .buku[aria-current] .label s { color: var(--dinding-2); }

/* redup saat disaring: buku mundur ke dinding */
.buku[data-redup] .sampul { transform: scale(.93) translateY(4px); opacity: .28; filter: grayscale(.8); box-shadow: none; }
.buku[data-redup] .label { opacity: .4; }
.buku[data-redup] .sampul-wadah::after { opacity: 0; }
.label { transition: opacity .45s var(--ease); }
@media (prefers-reduced-motion: reduce) {
  .buku .sampul, .buku .sampul-wadah::after, .label, .tombol { transition: none; }
  .buku > a:hover .sampul, .buku > a:focus-visible .sampul, .buku > a:hover .sampul-wadah::after { transform: none; }
}

.rak-kecil { --buku: clamp(84px, 6.6vw, 92px); }
.rak-kecil .label { font-size: 12px; padding: 5px 6px; }
.rak-kecil .label .nama { display: none; }
.rak-kecil .label b { font-size: 12.5px; white-space: nowrap; }
.rak-kecil .label s, .rak-kecil .label .meta { display: none; }
.rak-kecil .pembatas { width: 24px; }
.rak-kecil .pembatas i { display: none; }
.rak-kecil .pembatas b { font-size: 15px; }
.rak-besar { --buku: clamp(122px, 13.4vw, 184px); }
@media (max-width: 700px) { .rak-besar { --buku: 132px; } :root { --buku: 116px; } }

.geser-petunjuk { display: none; font-size: 13.5px; color: var(--tinta-2); margin: -8px 0 12px; }
@media (max-width: 1100px) { .geser-petunjuk { display: block; } }

/* rak per jenjang (halaman rak) */
.jenjang-rak { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(18px, 3vw, 40px); padding: clamp(26px, 3.4vw, 40px) 0 0; border-top: 1px solid var(--garis); }
.jenjang-rak:first-of-type { border-top: 0; }
.papan-nama { align-self: start; position: sticky; top: 16px; }
.papan-nama .nomor { display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px; background: var(--j); color: #fff; font-weight: 800; font-size: 26px; margin-bottom: 14px; }
.papan-nama h2 { font-size: clamp(24px, 2.2vw, 30px); margin-bottom: 8px; }
.papan-nama p { color: var(--tinta-2); font-size: 15.5px; margin: 0; }
@media (max-width: 860px) { .jenjang-rak { grid-template-columns: minmax(0, 1fr); } .papan-nama { position: static; display: grid; grid-template-columns: 52px 1fr; gap: 0 14px; } .papan-nama .nomor { grid-row: span 2; margin: 0; } }

/* saringan */
.saringan { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; padding: 0; list-style: none; }
.saringan button {
  font: inherit; font-size: 14.5px; font-weight: 650; min-height: 44px; padding: 0 16px;
  background: var(--kertas); color: var(--tinta); border: 1px solid var(--garis-kuat); border-radius: 22px; cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s;
}
.saringan button:hover { border-color: var(--tinta); }
.saringan button[aria-pressed="true"] { background: var(--tinta); color: var(--dinding); border-color: var(--tinta); }
.saringan-status { font-size: 14.5px; color: var(--tinta-2); min-height: 1.6em; margin: 6px 0 0; }

/* ---------- blok bagian ---------- */
.blok { padding: clamp(64px, 9vw, 128px) 0; }
.blok + .blok { border-top: 1px solid var(--garis); }
.blok-kepala { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(20px, 4vw, 64px); align-items: end; margin-bottom: clamp(32px, 4vw, 56px); }
.blok-kepala p { color: var(--tinta-2); font-size: 18px; margin: 0; max-width: 52ch; }
@media (max-width: 860px) { .blok-kepala { grid-template-columns: 1fr; } }

/* tangga jenjang */
.tangga { list-style: none; margin: 0; padding: 0; border-top: 1.5px solid var(--tinta); }
.tangga > li { display: grid; grid-template-columns: 76px minmax(0, 1.1fr) minmax(0, 1.4fr); gap: clamp(14px, 2.6vw, 36px); padding: 22px 0; border-bottom: 1px solid var(--garis); align-items: start; }
.tangga .n { width: 60px; height: 60px; background: var(--j); color: #fff; font-weight: 800; font-size: 30px; display: flex; align-items: center; justify-content: center; }
.tangga h3 { font-size: 22px; margin-bottom: 6px; }
.tangga p { margin: 0; color: var(--tinta-2); font-size: 16px; }
.tangga .judul-judul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.tangga .judul-judul a { display: grid; grid-template-columns: 36px 1fr auto; gap: 12px; align-items: center; text-decoration: none; min-height: 48px; }
.tangga .judul-judul img { width: 36px; aspect-ratio: 3/4; object-fit: cover; box-shadow: 0 4px 6px -4px var(--bayang); }
.tangga .judul-judul span { font-weight: 650; line-height: 1.3; }
.tangga .judul-judul a:hover span { text-decoration: underline; }
.tangga .judul-judul em { font-style: normal; font-size: 14px; color: var(--tinta-2); white-space: nowrap; }
@media (max-width: 860px) { .tangga > li { grid-template-columns: 60px minmax(0, 1fr); } .tangga .judul-judul { grid-column: 1 / -1; } }

/* daftar isi bertitik penuntun */
.daftar-isi { list-style: none; margin: 0; padding: 0; counter-reset: di; }
.daftar-isi li { display: flex; align-items: baseline; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--garis); counter-increment: di; }
.daftar-isi li::before { content: counter(di); font-weight: 800; font-variant-numeric: tabular-nums; width: 1.6em; flex: none; color: var(--tinta-3); }
.daftar-isi .teks { font-weight: 600; }
.daftar-isi .titik-penuntun { flex: 1; border-bottom: 2px dotted var(--garis-kuat); transform: translateY(-5px); min-width: 20px; }
.daftar-isi .ket { color: var(--tinta-2); font-size: 15px; white-space: nowrap; }
.daftar-isi.tanpa-nomor li::before { display: none; }
.dua-kolom { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: clamp(28px, 5vw, 80px); }
@media (max-width: 860px) { .dua-kolom { grid-template-columns: 1fr; } }
.dua-kolom .teks-kiri p { color: var(--tinta-2); font-size: 18px; max-width: 42ch; }

/* langkah beli */
.langkah { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 48px); counter-reset: lk; }
.langkah li { counter-increment: lk; border-top: 1.5px solid var(--tinta); padding-top: 18px; }
.langkah li::before { content: counter(lk); display: block; font-size: 44px; line-height: 1; font-weight: 800; letter-spacing: -.04em; margin-bottom: 14px; }
.langkah b { display: block; font-size: 19px; margin-bottom: 6px; line-height: 1.3; }
.langkah span { color: var(--tinta-2); font-size: 16px; }
@media (max-width: 760px) { .langkah { grid-template-columns: 1fr; } }
.langkah.tegak { grid-template-columns: 1fr; gap: 0; }
.langkah.tegak li { display: grid; grid-template-columns: 48px 1fr; border-top: 1px solid var(--garis); padding: 16px 0; }
.langkah.tegak li::before { font-size: 26px; margin: 0; grid-row: span 2; }

/* tanya jawab */
.tanya { border-top: 1.5px solid var(--tinta); }
.tanya details { border-bottom: 1px solid var(--garis); }
.tanya summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-weight: 700; font-size: 18px; position: relative; min-height: 44px; }
.tanya summary::-webkit-details-marker { display: none; }
.tanya summary::after { content: ''; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-70%) rotate(45deg); transition: transform .3s var(--ease); }
.tanya details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.tanya details > div { padding: 0 0 20px; color: var(--tinta-2); max-width: 68ch; }

/* ajakan penutup */
.penutup { --pb: var(--tinta); --pt: var(--dinding); --pt2: var(--dinding-2); background: var(--pb); color: var(--pt); padding: clamp(56px, 8vw, 104px) 0; }
.penutup .wadah { display: grid; grid-template-columns: minmax(0, 1.4fr) auto; gap: 28px; align-items: end; }
.penutup p { color: var(--pt2); font-size: 18px; margin: 14px 0 0; max-width: 50ch; }
.penutup .tombol { background: var(--pt); color: var(--pb); border-color: var(--pt); }
.penutup .tombol.garis { background: transparent; color: var(--pt); }
.penutup .tombol.garis:hover { background: var(--pt); color: var(--pb); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .penutup { --pb: #22211F; --pt: #EDEDE9; --pt2: #BDBAB4; border-top: 1px solid var(--garis); border-bottom: 1px solid var(--garis); } }
@media (max-width: 760px) { .penutup .wadah { grid-template-columns: 1fr; } }

/* ---------- halaman produk ---------- */
.jejak { font-size: 14.5px; color: var(--tinta-2); margin: 0 0 20px; }
.jejak a { color: var(--tinta-2); }
.produk-atas { display: grid; grid-template-columns: minmax(0, 400px) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: start; padding: clamp(28px, 5vw, 64px) 0 clamp(48px, 6vw, 80px); }
.produk-sampul { position: relative; padding-bottom: calc(var(--papan) + 2px); }
.produk-sampul img { width: 100%; aspect-ratio: 3/4; object-fit: cover; box-shadow: 0 1px 0 rgba(0,0,0,.25), 0 24px 26px -18px var(--bayang); position: relative; z-index: 1; }
.produk-sampul::after { content: ''; position: absolute; left: -24px; right: -24px; bottom: 0; height: var(--papan); background: var(--kayu); box-shadow: inset 0 2px 0 var(--kayu-tepi), inset 0 -3px 0 var(--kayu-bawah), 0 10px 18px -10px var(--bayang); }
.tanda-jenjang { margin: -8px 0 22px; font-weight: 700; font-size: 15px; }
.tanda-jenjang a { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; text-decoration: none; }
.tanda-jenjang a:hover { text-decoration: underline; }
.tanda-jenjang i { font-style: normal; display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; background: var(--j); color: #fff; font-weight: 800; }
.produk-info h1 { font-size: clamp(38px, 5vw, 68px); margin-bottom: 14px; }
.produk-info .sub { font-size: clamp(19px, 1.8vw, 23px); color: var(--tinta-2); line-height: 1.4; max-width: 34ch; margin-bottom: 26px; }
.angka-buku { list-style: none; margin: 0 0 28px; padding: 18px 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 14px 24px; border-top: 1px solid var(--garis); border-bottom: 1px solid var(--garis); }
.angka-buku b { display: block; font-size: 34px; line-height: 1; font-weight: 800; letter-spacing: -.04em; }
.angka-buku span { display: block; font-size: 14px; color: var(--tinta-2); margin-top: 6px; line-height: 1.3; }
.beli-kotak { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-bottom: 18px; }
.beli-kotak .harga-besar { display: flex; flex-direction: column; }
.beli-kotak .harga-besar b { font-size: 32px; font-weight: 800; letter-spacing: -.03em; line-height: 1.05; }
.beli-kotak .harga-besar s { color: var(--tinta-3); font-size: 15px; }
.catatan-kecil { font-size: 14.5px; color: var(--tinta-2); margin: 0 0 6px; max-width: 58ch; }
.promo-catatan { font-size: 14px; color: var(--tinta-2); margin: 0 0 16px; }
.bahasa-tersedia { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; font-size: 15px; margin: 18px 0 0; padding: 12px 14px; background: var(--kertas); border: 1px solid var(--garis); }
.bahasa-tersedia b { font-weight: 700; }
.bahasa-tersedia a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 650; }
.cocok { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 64px); }
.cocok h2 { font-size: clamp(24px, 2.4vw, 32px); margin-bottom: 18px; }
.cocok ul { list-style: none; margin: 0; padding: 0; border-top: 1.5px solid var(--tinta); }
.cocok li { padding: 14px 0 14px 34px; border-bottom: 1px solid var(--garis); position: relative; }
.cocok li::before { content: ''; position: absolute; left: 4px; top: 21px; width: 14px; height: 8px; border-left: 2.5px solid var(--baik); border-bottom: 2.5px solid var(--baik); transform: rotate(-45deg); }
.cocok .tidak li::before { width: 14px; height: 2.5px; border: 0; background: var(--tinta-3); top: 25px; transform: none; }
@media (max-width: 860px) { .produk-atas, .cocok { grid-template-columns: 1fr; } .produk-sampul { max-width: 300px; } }
.isi-bagian { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: clamp(24px, 3vw, 44px); }
.isi-bagian h3 { font-size: 17px; padding-bottom: 12px; border-bottom: 1.5px solid var(--tinta); margin-bottom: 4px; }
.isi-bagian ol { margin: 0; padding: 0; list-style: none; }
.isi-bagian li { padding: 10px 0; border-bottom: 1px solid var(--garis); font-size: 16px; display: grid; grid-template-columns: 2em 1fr; }
.isi-bagian li span { color: var(--tinta-3); font-weight: 700; font-variant-numeric: tabular-nums; }
.lampiran { margin-top: 32px; font-size: 16px; color: var(--tinta-2); }
.lampiran b { color: var(--tinta); }

/* ---------- halaman teks & formulir ---------- */
.judul-halaman { padding: clamp(36px, 6vw, 80px) 0 clamp(24px, 3vw, 40px); }
.judul-halaman h1 { font-size: clamp(36px, 5vw, 64px); max-width: 16ch; }
.judul-halaman .antar { font-size: clamp(17px, 1.5vw, 20px); color: var(--tinta-2); max-width: 54ch; margin-top: 18px; }
.teks-isi { padding-bottom: clamp(56px, 8vw, 104px); }
.teks-isi h2 { font-size: clamp(22px, 2.4vw, 28px); margin: 44px 0 14px; }
.teks-isi ul, .teks-isi ol { padding-left: 1.2em; }
.teks-isi li { margin-bottom: 8px; }
.teks-isi p, .teks-isi li { max-width: 68ch; }
.catatan { background: var(--kertas); border: 1px solid var(--garis); padding: 18px 20px; margin-top: 32px; }
.catatan p:last-child { margin: 0; }
.daftar-pisah { border-top: 1.5px solid var(--tinta); }
.daftar-pisah .baris { display: grid; grid-template-columns: minmax(140px, 220px) 1fr; gap: 8px 24px; padding: 14px 0; border-bottom: 1px solid var(--garis); }
.daftar-pisah .baris span { color: var(--tinta-2); }
@media (max-width: 600px) { .daftar-pisah .baris { grid-template-columns: 1fr; } }
.kotak-borang { background: var(--kertas); border: 1px solid var(--garis); padding: clamp(20px, 3.4vw, 36px); margin: 8px 0 40px; }
.ladang { margin-bottom: 20px; }
.ladang label { display: block; font-weight: 700; font-size: 15.5px; margin-bottom: 7px; }
.ladang input, .ladang select, .ladang textarea {
  width: 100%; min-height: 50px; padding: 12px 14px; font: inherit; font-size: 16.5px;
  color: var(--tinta); background: var(--dinding); border: 1.5px solid var(--garis-kuat); border-radius: 2px;
}
.ladang textarea { min-height: 130px; resize: vertical; }
.ladang input::placeholder, .ladang textarea::placeholder { color: var(--tinta-3); }
.ladang input:focus, .ladang select:focus, .ladang textarea:focus { outline: 3px solid var(--fokus); outline-offset: 1px; border-color: var(--tinta); }
.ladang [aria-invalid="true"] { border-color: var(--galat); }
.bantu { font-size: 14.5px; color: var(--tinta-2); margin: 7px 0 0; }
.galat { display: none; color: var(--galat); font-size: 14.5px; font-weight: 600; margin: 7px 0 0; }
.status-sistem { font-size: 15px; color: var(--tinta-2); background: var(--dinding-2); padding: 12px 14px; margin: 0 0 14px; border: 1px solid var(--garis); }
.ringkas-beli { display: grid; grid-template-columns: 72px 1fr auto; gap: 16px; align-items: center; padding-bottom: 20px; margin-bottom: 22px; border-bottom: 1px solid var(--garis); }
.ringkas-beli img { width: 72px; aspect-ratio: 3/4; object-fit: cover; box-shadow: 0 6px 8px -6px var(--bayang); }
.ringkas-beli b { display: block; font-size: 17px; line-height: 1.3; }
.ringkas-beli span { font-size: 14.5px; color: var(--tinta-2); }
.ringkas-beli .harga-besar { text-align: right; white-space: nowrap; }
.ringkas-beli .harga-besar b { font-size: 20px; }
.ringkas-beli .harga-besar s { display: block; font-size: 13px; color: var(--tinta-3); }
@media (max-width: 480px) { .ringkas-beli { grid-template-columns: 56px 1fr; } .ringkas-beli img { width: 56px; } .ringkas-beli .harga-besar { grid-column: 1 / -1; text-align: left; } }

/* ---------- kaki ---------- */
.kaki { background: var(--kayu-bawah); color: #E9E4DE; padding: clamp(44px, 6vw, 72px) 0 28px; }
.kaki a { color: #E9E4DE; }
.kaki .atas { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 28px; padding-bottom: 36px; border-bottom: 1px solid rgba(233, 228, 222, .2); }
.kaki .atas p { color: #C9C1B8; max-width: 34ch; margin-top: 10px; font-size: 15.5px; }
.kaki .kaki-j { font-size: 14px; letter-spacing: .02em; color: #C9C1B8; font-weight: 700; margin-bottom: 10px; }
.kaki .atas > div > a:not(.logo) { display: flex; align-items: center; min-height: 44px; text-decoration: none; font-size: 15.5px; }
.kaki .atas > div > a:not(.logo):hover { text-decoration: underline; }
.kaki .logo .titik { background: var(--nyala); }
.kaki .bawah { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 22px; font-size: 14px; color: #C9C1B8; }
@media (max-width: 860px) { .kaki .atas { grid-template-columns: 1fr 1fr; } .kaki .atas > div:first-child { grid-column: 1 / -1; } }

/* kemunculan: terlihat sejak awal; hanya digeser sedikit bila JS jalan */
.js .muncul { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .muncul.tampil { opacity: 1; transform: none; }
.js .rak-deret.muncul > li { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); transition-delay: calc(var(--i, 0) * 45ms); }
.js .rak-deret.muncul.tampil > li { opacity: 1; transform: none; }
.js .rak-deret.muncul { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .muncul, .js .rak-deret.muncul > li { opacity: 1; transform: none; transition: none; } }
.kaki .bawah a { display: inline-flex; align-items: center; min-height: 44px; }