/* ===========================================================
   TUNAS BUDI — lembar gaya
   Warna diambil dari lambang: biru tua, kuning, dan hijau tunas.
   =========================================================== */

:root {
  --biru:      #00359D;
  --biru-2:    #0A46B8;
  --biru-3:    #4C79D4;
  --biru-tua:  #012569;
  --kuning:    #F2CD02;
  --kuning-2:  #FFE066;
  --hijau:     #50A234;
  --hijau-2:   #3E8228;
  --kertas:    #F3F5FA;
  --kartu:     #FFFFFF;
  --putih:     #FFFFFF;
  --abu:       #5A6377;
  --abu-2:     #8D95A6;
  --garis:     #D8DEEB;
  --merah:     #C0392B;
  --kuning-tua:#8A6D02;
  --tinta:     #1B2438;

  /* nama lama dipetakan ke warna baru agar seluruh berkas tetap serasi */
  --nila:      #00359D;
  --nila-2:    #0A46B8;
  --nila-3:    #4C79D4;
  --kuningan:  #8A6D02;
  --kuningan-2:#F2CD02;
  --jati:      #C29A06;
  --hijau-lama:#50A234;

  --lebar: 1140px;
  --radius: 10px;
  --bayang: 0 1px 2px rgba(0,53,157,.06), 0 10px 28px rgba(0,53,157,.08);
}

*, *::before, *::after { box-sizing: border-box; }

/* Atribut hidden wajib mengalahkan aturan display apa pun di bawah ini.
   Tanpa baris ini, elemen ber-display flex atau grid tetap terlihat
   meski skrip sudah menyembunyikannya. */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: 'Nunito', 'Figtree', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--tinta);
  background: var(--kertas);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.45rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }
a { color: var(--nila-2); text-decoration: none; }
a:hover { color: var(--kuningan); }
img { max-width: 100%; display: block; }

:focus-visible {
  outline: 2px solid var(--kuningan);
  outline-offset: 2px;
}

.wadah { width: 100%; max-width: var(--lebar); margin: 0 auto; padding: 0 20px; }
.lompat {
  position: absolute; left: -9999px; top: 0;
  background: var(--nila); color: #fff; padding: 10px 16px; z-index: 100;
}
.lompat:focus { left: 8px; top: 8px; }

/* ---------- Label kecil ---------- */
.eyebrow, .label-mono {
  font-family: 'Space Mono', ui-monospace, monospace;
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--kuningan);
}
.data { font-family: 'Space Mono', ui-monospace, monospace; }

/* ===========================================================
   KEPALA
   =========================================================== */

.kepala {
  background: var(--kertas);
  border-bottom: 1px solid var(--garis);
  position: sticky; top: 0; z-index: 40;
}
.kepala-isi {
  display: flex; align-items: center; gap: 24px;
  min-height: 68px;
}
.merek { display: flex; flex-direction: column; line-height: 1.15; }
.merek strong {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive;
  font-size: 1.2rem; font-weight: 600; color: var(--nila);
}
.merek span {
  font-family: 'Space Mono', monospace;
  font-size: .6rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--abu-2);
}

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 8px 12px; font-size: .92rem; color: var(--nila);
  border-radius: var(--radius);
}
.nav a:hover { background: rgba(0,53,157,.07); color: var(--nila); }
.nav a[aria-current="page"] { color: var(--kuningan); }

.tombol-keranjang {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--nila); color: #fff !important;
  padding: 9px 16px !important; border-radius: var(--radius);
  font-size: .9rem;
}
.tombol-keranjang:hover { background: var(--nila-2); }
.tombol-keranjang .hitung {
  font-family: 'Space Mono', monospace; font-size: .75rem;
  background: var(--kuningan-2); color: var(--nila);
  border-radius: 999px; padding: 1px 7px; font-weight: 700;
}

.buka-nav {
  display: none; margin-left: auto;
  background: none; border: 1px solid var(--garis);
  border-radius: var(--radius); padding: 8px 12px;
  font: inherit; font-size: .85rem; color: var(--nila); cursor: pointer;
}

/* ===========================================================
   PEMBUKA DAN RAK BUKU  — elemen khas situs ini
   =========================================================== */

.pembuka { padding: 64px 0 0; }
.pembuka .eyebrow { display: block; margin-bottom: 18px; }
.pembuka h1 { max-width: 16ch; margin-bottom: 20px; }
.pembuka .ringkas {
  max-width: 56ch; color: var(--abu); font-size: 1.05rem; margin-bottom: 28px;
}
.pembuka-aksi { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 56px; }

/* --- rak --- */
.rak-bungkus { padding-bottom: 56px; }
.rak {
  display: flex; align-items: flex-end; justify-content: center;
  gap: 5px; min-height: 250px; padding: 0 4px;
  overflow-x: auto; scrollbar-width: thin;
}
.punggung {
  position: relative;
  flex: 0 0 auto;
  width: 46px;
  border-radius: 2px 2px 0 0;
  color: rgba(255,255,255,.94);
  display: flex; align-items: center; justify-content: center;
  padding: 14px 4px;
  box-shadow: inset -6px 0 10px rgba(0,0,0,.22), inset 3px 0 6px rgba(255,255,255,.14);
  transition: transform .22s ease, box-shadow .22s ease;
  text-decoration: none;
}
.punggung::before {
  content: ""; position: absolute; inset: 8px 5px auto 5px; height: 1px;
  background: rgba(255,255,255,.35);
}
.punggung::after {
  content: ""; position: absolute; inset: auto 5px 8px 5px; height: 1px;
  background: rgba(255,255,255,.35);
}
.punggung .judul-punggung {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive;
  font-size: .82rem; font-weight: 500; letter-spacing: .01em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  max-height: 100%;
}
.punggung:hover, .punggung:focus-visible {
  transform: translateY(-14px);
  box-shadow: inset -6px 0 10px rgba(0,0,0,.22), inset 3px 0 6px rgba(255,255,255,.14),
              0 12px 20px rgba(0,53,157,.24);
  color: #fff;
}
.punggung.t1 { height: 170px; } .punggung.t2 { height: 195px; }
.punggung.t3 { height: 220px; } .punggung.t4 { height: 240px; }
.punggung.t5 { height: 262px; }

.papan {
  height: 12px; border-radius: 2px;
  background: linear-gradient(180deg, var(--jati), #533618);
  box-shadow: 0 12px 22px rgba(0,53,157,.20);
}
.papan-bayang {
  height: 26px;
  background: linear-gradient(180deg, rgba(0,53,157,.10), transparent);
}
.rak-ket {
  text-align: center; margin-top: 14px;
  font-family: 'Space Mono', monospace; font-size: .68rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--abu-2);
}

/* ===========================================================
   TOMBOL
   =========================================================== */

.tbl {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: .95rem; font-weight: 500;
  padding: 12px 22px; border-radius: var(--radius);
  border: 1px solid transparent; cursor: pointer;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
  text-align: center;
}
.tbl-utama { background: var(--nila); color: #fff; }
.tbl-utama:hover { background: var(--nila-2); color: #fff; }
.tbl-garis { background: transparent; color: var(--nila); border-color: var(--nila); }
.tbl-garis:hover { background: var(--nila); color: #fff; }
.tbl-halus { background: transparent; color: var(--abu); border-color: var(--garis); }
.tbl-halus:hover { border-color: var(--nila); color: var(--nila); }
.tbl-bahaya { background: var(--merah); color: #fff; }
.tbl-bahaya:hover { background: #8c3226; color: #fff; }
.tbl-kecil { padding: 7px 14px; font-size: .85rem; }
.tbl-penuh { width: 100%; }
.tbl:disabled { opacity: .5; cursor: not-allowed; }

/* ===========================================================
   BAGIAN DAN KARTU
   =========================================================== */

.bagian { padding: 56px 0; }
.bagian-kepala {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; margin-bottom: 28px;
  border-bottom: 1px solid var(--garis); padding-bottom: 14px;
}
.bagian-kepala h2 { margin: 0; }
.bagian-kepala .eyebrow { display: block; margin-bottom: 6px; }

.kisi { display: grid; gap: 24px; }
.kisi-3 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.kisi-4 { grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); }

.kartu-buku {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.kartu-buku:hover {
  border-color: var(--nila-3); transform: translateY(-3px); box-shadow: var(--bayang);
}
.kartu-sampul {
  aspect-ratio: 3 / 4; background: var(--nila); position: relative; overflow: hidden;
}
.kartu-sampul img { width: 100%; height: 100%; object-fit: cover; }
.sampul-ganti {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px; padding: 20px;
  text-align: center; color: rgba(255,255,255,.92);
}
.sampul-ganti .jdl {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 1rem; line-height: 1.25;
}
.sampul-ganti .pnl {
  font-family: 'Space Mono', monospace; font-size: .6rem;
  letter-spacing: .14em; text-transform: uppercase; opacity: .75;
}
.kartu-isi { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.kartu-kategori {
  font-family: 'Space Mono', monospace; font-size: .62rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--kuningan);
  margin-bottom: 6px;
}
.kartu-judul {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 1.05rem; font-weight: 600;
  line-height: 1.25; margin: 0 0 6px; color: var(--nila);
}
.kartu-ringkas { font-size: .86rem; color: var(--abu); margin: 0 0 14px; }
.kartu-kaki {
  margin-top: auto; display: flex; align-items: baseline;
  justify-content: space-between; gap: 10px;
  border-top: 1px solid var(--garis); padding-top: 12px;
}
.harga { font-family: 'Space Mono', monospace; font-weight: 700; color: var(--nila); }
.harga small { font-weight: 400; color: var(--abu-2); font-size: .7rem; display: block; }

/* ---------- Statistik ---------- */
.statistik {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px; background: var(--garis);
  border: 1px solid var(--garis); border-radius: var(--radius); overflow: hidden;
}
.statistik div { background: var(--kertas); padding: 22px 20px; }
.statistik .n {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 2rem;
  font-weight: 600; line-height: 1; color: var(--nila);
}
.statistik .k {
  font-family: 'Space Mono', monospace; font-size: .64rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--abu-2); margin-top: 8px;
}

/* ===========================================================
   HALAMAN BUKU
   =========================================================== */

.buku-atas {
  display: grid; grid-template-columns: 320px 1fr; gap: 44px;
  padding: 44px 0;
}
.buku-sampul {
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--bayang); background: var(--nila);
  aspect-ratio: 3 / 4; position: relative;
}
.buku-sampul img { width: 100%; height: 100%; object-fit: cover; }
.buku-judul { margin-bottom: 6px; }
.buku-subjudul {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 1.1rem;
  color: var(--abu); font-weight: 400; margin-bottom: 18px;
}

.kolofon {
  border-top: 1px solid var(--garis); border-bottom: 1px solid var(--garis);
  padding: 4px 0; margin: 22px 0;
}
.kolofon dl {
  display: grid; grid-template-columns: 116px 1fr; margin: 0;
  font-size: .85rem;
}
.kolofon dt {
  font-family: 'Space Mono', monospace; font-size: .64rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--abu-2);
  padding: 9px 0; border-bottom: 1px solid var(--garis);
}
.kolofon dd {
  margin: 0; padding: 9px 0; border-bottom: 1px solid var(--garis); color: var(--tinta);
}
.kolofon dl > dt:nth-last-of-type(1), .kolofon dl > dd:nth-last-of-type(1) { border-bottom: none; }

.pilihan-beli { display: grid; gap: 12px; margin: 24px 0; }
.opsi {
  border: 1px solid var(--garis); border-radius: var(--radius);
  background: var(--kartu); padding: 16px 18px;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.opsi .ket { flex: 1; min-width: 160px; }
.opsi .nm { font-weight: 600; }
.opsi .sub { font-size: .8rem; color: var(--abu); }
.opsi .hrg { font-family: 'Space Mono', monospace; font-weight: 700; font-size: 1.05rem; }
.opsi form { display: flex; align-items: center; gap: 10px; }
.opsi.mati { opacity: .55; }

.jumlah-input {
  width: 68px; padding: 9px 10px; font: inherit;
  font-family: 'Space Mono', monospace; font-size: .85rem;
  border: 1px solid var(--garis); border-radius: var(--radius);
  background: var(--putih); color: var(--nila);
}

.sinopsis { max-width: 68ch; }
.sinopsis h2 { font-size: 1.25rem; margin-bottom: .6em; }

/* ===========================================================
   FORMULIR
   =========================================================== */

.medan { margin-bottom: 18px; }
.medan label {
  display: block; font-size: .82rem; font-weight: 600;
  color: var(--nila); margin-bottom: 6px;
}
.medan .bantuan { font-size: .78rem; color: var(--abu-2); margin-top: 5px; }
.medan .galat-teks { font-size: .8rem; color: var(--merah); margin-top: 5px; }

input[type=text], input[type=email], input[type=password], input[type=number],
input[type=search], input[type=url], input[type=tel], select, textarea {
  width: 100%; padding: 11px 13px; font: inherit; font-size: .95rem;
  color: var(--tinta); background: var(--putih);
  border: 1px solid var(--garis); border-radius: var(--radius);
  transition: border-color .15s ease;
}
input:focus, select:focus, textarea:focus { border-color: var(--nila-3); outline: none; }
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--merah); }
textarea { min-height: 120px; resize: vertical; line-height: 1.6; }
input[type=file] {
  width: 100%; font-size: .88rem; padding: 10px;
  border: 1px dashed var(--garis); border-radius: var(--radius); background: var(--putih);
}
input[type=color] {
  width: 56px; height: 40px; padding: 3px; border: 1px solid var(--garis);
  border-radius: var(--radius); background: var(--putih); cursor: pointer;
}
.centang { display: flex; align-items: center; gap: 9px; font-size: .92rem; margin-bottom: 10px; }
.centang input { width: 17px; height: 17px; accent-color: var(--nila); }

.baris { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
.baris-3 { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }

fieldset {
  border: 1px solid var(--garis); border-radius: var(--radius);
  padding: 20px; margin: 0 0 24px;
}
legend {
  font-family: 'Space Mono', monospace; font-size: .66rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--kuningan);
  padding: 0 8px;
}

/* ===========================================================
   PANEL, TABEL, PESAN
   =========================================================== */

.panel {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); padding: 24px;
}
.panel + .panel { margin-top: 20px; }
.panel h2, .panel h3 { margin-top: 0; }

.tabel { width: 100%; border-collapse: collapse; font-size: .9rem; }
.tabel th {
  text-align: left; font-family: 'Space Mono', monospace;
  font-size: .62rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--abu-2); font-weight: 400;
  padding: 0 12px 10px 0; border-bottom: 1px solid var(--nila);
}
.tabel td {
  padding: 12px 12px 12px 0; border-bottom: 1px solid var(--garis);
  vertical-align: top;
}
.tabel tr:last-child td { border-bottom: none; }
.tabel .kanan { text-align: right; }
.tabel-gulir { overflow-x: auto; }

.lencana {
  display: inline-block; font-family: 'Space Mono', monospace;
  font-size: .62rem; letter-spacing: .1em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; border: 1px solid;
}
.lencana.hijau { color: var(--hijau-2); border-color: var(--hijau-2); background: rgba(62,130,40,.10); }
.lencana.kuning { color: var(--kuning-tua); border-color: var(--kuning-tua); background: rgba(138,109,2,.10); }
.lencana.merah { color: var(--merah); border-color: var(--merah); background: rgba(192,57,43,.09); }
.lencana.abu { color: var(--abu); border-color: var(--garis); background: rgba(93,100,114,.06); }

.pesan {
  border: 1px solid var(--garis); border-left-width: 3px;
  border-radius: var(--radius); padding: 13px 16px; margin-bottom: 16px;
  font-size: .92rem; background: var(--kartu);
}
.pesan.sukses { border-left-color: var(--hijau); }
.pesan.galat { border-left-color: var(--merah); }

.kosong {
  text-align: center; padding: 56px 24px;
  border: 1px dashed var(--garis); border-radius: var(--radius);
  color: var(--abu);
}
.kosong h3 { color: var(--nila); }

.ringkas-tagihan { font-size: .95rem; }
.ringkas-tagihan .baris-t {
  display: flex; justify-content: space-between; gap: 16px; padding: 9px 0;
  border-bottom: 1px solid var(--garis);
}
.ringkas-tagihan .baris-t:last-child { border-bottom: none; }
.ringkas-tagihan .total {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 1.3rem; font-weight: 600;
  border-top: 2px solid var(--nila); padding-top: 14px; margin-top: 6px;
}
.nilai { font-family: 'Space Mono', monospace; }

.rekening {
  background: var(--nila); color: #fff; border-radius: var(--radius); padding: 20px 22px;
}
.rekening .lbl {
  font-family: 'Space Mono', monospace; font-size: .62rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--kuningan-2);
}
.rekening .no {
  font-family: 'Space Mono', monospace; font-size: 1.5rem; font-weight: 700;
  letter-spacing: .05em; margin: 4px 0;
}
.rekening .an { font-size: .9rem; color: rgba(255,255,255,.82); }

/* ---------- Langkah ---------- */
.langkah { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.langkah > div { border-top: 2px solid var(--nila); padding-top: 14px; }
.langkah .n {
  font-family: 'Space Mono', monospace; font-size: .68rem;
  letter-spacing: .14em; color: var(--kuningan); margin-bottom: 6px;
}
.langkah h3 { font-size: 1.05rem; margin-bottom: .35em; }
.langkah p { font-size: .88rem; color: var(--abu); margin: 0; }

/* ===========================================================
   PANEL PENGELOLAAN
   =========================================================== */

.admin-bar { background: var(--nila); color: #fff; }
.admin-bar .wadah { display: flex; align-items: center; gap: 6px; min-height: 56px; flex-wrap: wrap; }
.admin-bar .jdl {
  font-family: 'Space Mono', monospace; font-size: .66rem;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--kuningan-2); margin-right: 14px;
}
.admin-bar a { color: rgba(255,255,255,.82); padding: 7px 12px; border-radius: var(--radius); font-size: .9rem; }
.admin-bar a:hover { background: rgba(255,255,255,.12); color: #fff; }
.admin-bar a[aria-current="page"] { background: rgba(255,255,255,.16); color: #fff; }
.admin-bar .kanan { margin-left: auto; display: flex; align-items: center; gap: 6px; }

.papan-angka {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px;
}
.papan-angka div {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); padding: 18px 20px;
}
.papan-angka .n {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 1.7rem; font-weight: 600; line-height: 1.1;
}
.papan-angka .k {
  font-family: 'Space Mono', monospace; font-size: .62rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--abu-2); margin-top: 6px;
}

.saring { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.saring a {
  font-size: .85rem; padding: 7px 14px; border: 1px solid var(--garis);
  border-radius: 999px; color: var(--abu);
}
.saring a:hover { border-color: var(--nila); color: var(--nila); }
.saring a.aktif { background: var(--nila); border-color: var(--nila); color: #fff; }

.pratinjau-sampul {
  width: 110px; aspect-ratio: 3/4; object-fit: cover;
  border: 1px solid var(--garis); border-radius: var(--radius); background: var(--nila);
}

.aksi-kanan { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* ===========================================================
   KAKI
   =========================================================== */

.kaki {
  background: var(--nila); color: rgba(255,255,255,.78);
  margin-top: 72px; padding: 52px 0 28px; font-size: .9rem;
}
.kaki a { color: rgba(255,255,255,.78); }
.kaki a:hover { color: var(--kuningan-2); }
.kaki-kisi {
  display: grid; gap: 32px;
  grid-template-columns: 1.6fr 1fr 1fr; margin-bottom: 36px;
}
.kaki h4 {
  font-family: 'Space Mono', monospace; font-size: .64rem;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--kuningan-2); margin-bottom: 14px; font-weight: 400;
}
.kaki .nama-toko {
  font-family: 'Baloo 2', 'Fraunces', Georgia, cursive; font-size: 1.3rem;
  color: #fff; margin-bottom: 8px;
}
.kaki ul { list-style: none; margin: 0; padding: 0; }
.kaki li { margin-bottom: 8px; }
.kaki-bawah {
  border-top: 1px solid rgba(255,255,255,.14); padding-top: 20px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .8rem; color: rgba(255,255,255,.55);
}

/* ===========================================================
   TANGGAP LAYAR
   =========================================================== */

@media (max-width: 860px) {
  .buku-atas { grid-template-columns: 1fr; gap: 28px; }
  .buku-sampul { max-width: 260px; }
  .kaki-kisi { grid-template-columns: 1fr 1fr; }
  .baris-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 700px) {
  .buka-nav { display: block; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--kertas); border-bottom: 1px solid var(--garis);
    padding: 8px 20px 16px;
  }
  .nav.tampil { display: flex; }
  .nav a { padding: 12px 4px; border-bottom: 1px solid var(--garis); }
  .tombol-keranjang { justify-content: center; margin-top: 10px; }
  .kepala-isi { position: relative; }

  .pembuka { padding-top: 40px; }
  .rak { justify-content: flex-start; }
  .baris, .baris-3 { grid-template-columns: 1fr; }
  .bagian { padding: 40px 0; }
  .bagian-kepala { flex-direction: column; align-items: flex-start; }
  .kolofon dl { grid-template-columns: 96px 1fr; }
  .kaki-kisi { grid-template-columns: 1fr; }
  .panel { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  .punggung:hover { transform: none; }
}

@media print {
  .kepala, .kaki, .admin-bar, .tbl, .pembuka-aksi { display: none !important; }
  body { background: #fff; }
}

/* ===========================================================
   TAMBAHAN TUNAS BUDI
   =========================================================== */

/* ---------- merek dengan lambang ---------- */
.merek { flex-direction: row; align-items: center; gap: 12px; }
.merek-teks span {
  display: block; max-width: 34ch;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.merek img { width: 44px; height: 44px; border-radius: 8px; }
.merek-teks { display: flex; flex-direction: column; line-height: 1.15; }

/* ---------- pembuka ---------- */
.pembuka {
  background:
    radial-gradient(1100px 460px at 82% -12%, rgba(242,205,2,.20), transparent 62%),
    radial-gradient(760px 380px at 6% 0%, rgba(80,162,52,.14), transparent 60%);
  padding-top: 56px;
}
.pembuka-kisi {
  display: grid; grid-template-columns: 1.25fr .75fr;
  gap: 48px; align-items: center;
}
.pembuka h1 { color: var(--biru-tua); max-width: 15ch; }
.lambang-besar {
  width: 100%; max-width: 300px; margin-left: auto;
  border-radius: 22px; box-shadow: var(--bayang);
}

/* ---------- pita bagian ---------- */
.bagian-terang { background: var(--putih); }
.bagian-biru { background: var(--biru); color: rgba(255,255,255,.9); }
.bagian-biru h2, .bagian-biru h3 { color: #fff; }
.bagian-biru .eyebrow { color: var(--kuning); }
.bagian-biru .bagian-kepala { border-bottom-color: rgba(255,255,255,.22); }

/* ---------- profil ---------- */
.profil-kisi {
  display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start;
}
.profil-foto {
  width: 100%; aspect-ratio: 3/4; object-fit: cover;
  border-radius: var(--radius); background: var(--biru); box-shadow: var(--bayang);
}
.profil-foto-ganti {
  width: 100%; aspect-ratio: 3/4; border-radius: var(--radius);
  background: linear-gradient(160deg, var(--biru), var(--biru-2));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: 'Baloo 2', cursive; font-size: 3.4rem;
}
.profil-nama { margin-bottom: 4px; color: var(--biru-tua); }
.profil-jabatan { color: var(--abu); margin-bottom: 20px; }

.riwayat { margin: 0; padding: 0; list-style: none; }
.riwayat li {
  position: relative; padding: 0 0 16px 26px;
  border-left: 2px solid var(--garis); margin-left: 6px;
}
.riwayat li:last-child { border-left-color: transparent; padding-bottom: 0; }
.riwayat li::before {
  content: ""; position: absolute; left: -7px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--kuning); border: 2px solid var(--putih);
  box-shadow: 0 0 0 2px var(--biru);
}
.riwayat .thn {
  font-family: 'Space Mono', monospace; font-size: .72rem;
  letter-spacing: .06em; color: var(--biru-2); font-weight: 700;
}
.riwayat .apa { font-size: .93rem; color: #2A3345; }

.pilar { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.pilar > div {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); padding: 22px;
}
.pilar .ikon {
  width: 42px; height: 42px; border-radius: 12px; margin-bottom: 14px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Baloo 2', cursive; font-size: 1.3rem; color: #fff;
}
.pilar h3 { font-size: 1.05rem; margin-bottom: .3em; color: var(--biru-tua); }
.pilar p { font-size: .88rem; color: var(--abu); margin: 0; }

/* ---------- kartu karya ---------- */
.kartu-sampul { aspect-ratio: 3/4; }
.kartu-buku.lebar .kartu-sampul { aspect-ratio: 5/4; }
.kartu-aksi { display: flex; gap: 8px; flex-wrap: wrap; }

.pita-seri {
  position: absolute; top: 12px; left: 12px; z-index: 2;
  background: rgba(255,255,255,.94); color: var(--biru);
  font-family: 'Space Mono', monospace; font-size: .6rem;
  letter-spacing: .12em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}

/* ---------- pembaca flipbook ---------- */
.baca-bar {
  position: sticky; top: 0; z-index: 30;
  background: var(--biru); color: #fff;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 10px 20px;
}
.baca-bar a, .baca-bar button {
  color: #fff; background: rgba(255,255,255,.14); border: none;
  font: inherit; font-size: .88rem; padding: 8px 14px;
  border-radius: 8px; cursor: pointer;
}
.baca-bar a:hover, .baca-bar button:hover { background: rgba(255,255,255,.26); color: #fff; }
.baca-bar button:disabled { opacity: .4; cursor: not-allowed; }
.baca-bar .jdl {
  font-family: 'Baloo 2', cursive; font-size: 1.05rem; margin-right: auto;
}
.baca-bar .no-hal { font-family: 'Space Mono', monospace; font-size: .82rem; }

.panggung {
  background: #0B1B3F; min-height: 68vh;
  display: flex; align-items: center; justify-content: center;
  padding: 26px 16px 40px;
}
.lembar {
  position: relative; max-width: 100%;
  box-shadow: 0 18px 50px rgba(0,0,0,.45); border-radius: 4px; background: #fff;
  transition: transform .45s ease, opacity .45s ease;
  transform-origin: left center;
}
.lembar canvas { display: block; max-width: 100%; height: auto; border-radius: 4px; }
.lembar.balik { transform: perspective(2200px) rotateY(-22deg); opacity: .35; }
.memuat {
  color: rgba(255,255,255,.72); font-size: .9rem;
  font-family: 'Space Mono', monospace;
}

.pagar-pratinjau {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); padding: 30px; text-align: center;
  max-width: 520px; margin: 0 auto;
}
.pagar-pratinjau h3 { color: var(--biru-tua); }
.pagar-pratinjau p { color: var(--abu); font-size: .92rem; }

/* ---------- tombol khas ---------- */
.tbl { border-radius: 999px; font-weight: 600; }
.tbl-utama { background: var(--biru); }
.tbl-utama:hover { background: var(--biru-2); }
.tbl-kuning { background: var(--kuning); color: var(--biru-tua); }
.tbl-kuning:hover { background: var(--kuning-2); color: var(--biru-tua); }
.tbl-hijau { background: var(--hijau); color: #fff; }
.tbl-hijau:hover { background: var(--hijau-2); color: #fff; }

.kaki { background: var(--biru-tua); }
.punggung { border-radius: 3px 3px 0 0; }
.papan { background: linear-gradient(180deg, #C29A06, #8A6D02); }

@media (max-width: 860px) {
  .pembuka-kisi { grid-template-columns: 1fr; gap: 28px; }
  .lambang-besar { margin: 0 auto; max-width: 220px; }
  .profil-kisi { grid-template-columns: 1fr; gap: 24px; }
  .profil-foto, .profil-foto-ganti { max-width: 220px; }
}

/* ---------- lagu dan video ---------- */
.kisi-lagu {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.kartu-lagu {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
}
.bingkai-video {
  position: relative; width: 100%; padding-top: 56.25%;
  background: #000;
}
.bingkai-video iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}
.lagu-isi { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.lagu-jenis {
  font-family: 'Space Mono', monospace; font-size: .6rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--hijau-2); margin-bottom: 8px;
}
.lagu-jenis.video { color: var(--biru-2); }
.lagu-isi h3 { font-size: 1.08rem; margin: 0 0 8px; color: var(--biru-tua); }
.lagu-isi p { font-size: .87rem; color: var(--abu); margin: 0 0 14px; }
.lagu-isi .tbl { margin-top: auto; align-self: flex-start; }

/* ---------- kartu orang: pengembang dan pembimbing ---------- */
.kisi-pembimbing {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.kartu-orang {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); overflow: hidden;
  display: grid; grid-template-columns: 150px 1fr;
}
.orang-foto { width: 100%; height: 100%; object-fit: cover; background: var(--biru); }
.orang-foto-ganti {
  background: linear-gradient(160deg, var(--biru), var(--biru-2));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: 'Baloo 2', cursive; font-size: 2.6rem;
}
.orang-isi { padding: 20px 22px; }
.orang-peran {
  display: inline-block; font-family: 'Space Mono', monospace;
  font-size: .6rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--hijau-2); background: rgba(80,162,52,.10);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
}
.orang-isi h3 { font-size: 1.1rem; margin: 0 0 4px; color: var(--biru-tua); }
.orang-jabatan { font-size: .85rem; color: var(--abu); margin: 0 0 12px; }
.orang-data {
  display: grid; grid-template-columns: 88px 1fr; margin: 0 0 12px;
  font-size: .82rem; border-top: 1px solid var(--garis);
}
.orang-data dt {
  font-family: 'Space Mono', monospace; font-size: .62rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--abu-2);
  padding: 7px 0; border-bottom: 1px solid var(--garis);
}
.orang-data dd {
  margin: 0; padding: 7px 0; border-bottom: 1px solid var(--garis); color: var(--tinta);
}
.orang-riwayat { font-size: .87rem; color: var(--abu); margin: 0 0 12px; }
.orang-publikasi h4 {
  font-family: 'Space Mono', monospace; font-size: .62rem;
  letter-spacing: .12em; text-transform: uppercase; color: var(--kuning-tua);
  margin: 0 0 8px; font-weight: 400;
}
.orang-publikasi ul { margin: 0; padding: 0; list-style: none; }
.orang-publikasi li {
  font-size: .82rem; color: var(--tinta); padding: 6px 0 6px 14px;
  border-top: 1px solid var(--garis); position: relative; line-height: 1.45;
}
.orang-publikasi li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--kuning);
}

.kontak-samping {
  background: var(--kartu); border: 1px solid var(--garis);
  border-radius: var(--radius); padding: 18px 20px; margin-top: 20px;
}
.kontak-samping h4 {
  font-family: 'Space Mono', monospace; font-size: .62rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--kuning-tua); margin: 0 0 12px; font-weight: 400;
}
.kontak-samping a {
  display: block; font-size: .88rem; padding: 6px 0;
  border-top: 1px solid var(--garis); color: var(--biru-2); word-break: break-all;
}
.kontak-samping a:first-of-type { border-top: none; }

@media (max-width: 560px) {
  .kartu-orang { grid-template-columns: 1fr; }
  .orang-foto, .orang-foto-ganti { aspect-ratio: 3/2; }
}

.callout-akademisi {
  margin-top: 26px; background: var(--kartu);
  border: 1px solid var(--garis); border-left: 4px solid var(--kuning);
  border-radius: var(--radius); padding: 20px 24px;
}
.callout-akademisi .eyebrow { display: block; margin-bottom: 8px; }
.callout-akademisi p { margin: 0; color: var(--tinta); font-size: .95rem; max-width: 72ch; }

.rekening + .rekening { margin-top: 10px; }