/* ---------------------------------------------------------------------------
   Perpustakaan umum di halaman Pustaka.
   Dipisahkan dari gaya berkas kebinan PII agar keduanya bisa berubah sendiri:
   rak, kartu buku, dan pembaca teks dengan tiga suasana baca.
--------------------------------------------------------------------------- */

.perp-switch {
  display: flex;
  gap: 6px;
  margin: 4px 0 18px;
  padding: 4px;
  border: 1px solid var(--line, #dfe7ef);
  border-radius: 14px;
  background: #f2f6fb;
}

.perp-switch button {
  flex: 1 1 0;
  min-width: 0;
  border: 0;
  border-radius: 10px;
  padding: 10px 8px;
  background: none;
  color: #5a7188;
  font: inherit;
  font-size: .84rem;
  font-weight: 800;
  letter-spacing: -.01em;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, box-shadow .18s ease;
}

.perp-switch button[aria-selected='true'] {
  background: #fff;
  color: var(--navy, #102b49);
  box-shadow: 0 4px 14px rgba(16, 43, 73, .1);
}

/* Dua blok dimiliki skrip ini, satu blok dimiliki Pustaka organisasi.
   display !important menang atas atribut hidden, jadi tidak perlu saling
   mengirim pesan lewat skrip yang sudah berjalan. */
body[data-perp-view='perpustakaan'] #pustakaGate,
body[data-perp-view='perpustakaan'] #pustakaApp {
  display: none !important;
}

body[data-perp-view='berkas'] #perpustakaan {
  display: none !important;
}

.perp-head h1 {
  margin: 4px 0 6px;
  color: var(--navy, #102b49);
  font-size: clamp(1.35rem, 4.6vw, 2rem);
  font-weight: 900;
  letter-spacing: -.03em;
}

.perp-head > p {
  margin: 0 0 4px;
  color: #4c647d;
  font-size: .9rem;
  line-height: 1.55;
}

.perp-head > p b {
  color: var(--navy, #102b49);
}

.perp-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}

.perp-field {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  border: 1px solid #cfdcea;
  border-radius: 14px;
  padding: 11px 13px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(16, 43, 73, .05);
}

.perp-field:focus-within {
  border-color: var(--blue, #1c6bb5);
  box-shadow: 0 6px 20px rgba(28, 107, 181, .14);
}

.perp-field svg {
  flex: 0 0 auto;
  width: 19px;
  height: 19px;
  fill: none;
  stroke: #7c93aa;
  stroke-width: 1.7;
  stroke-linecap: round;
}

.perp-field input {
  flex: 1 1 auto;
  min-width: 0;
  border: 0;
  background: none;
  color: var(--navy, #102b49);
  font: inherit;
  font-size: 16px;
  outline: none;
}

.perp-clear {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 1px solid #d7e2ee;
  border-radius: 50%;
  background: #fff;
  color: #64798f;
  font: inherit;
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
}

.perp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 12px 0 4px;
}

.perp-chip {
  border: 1px solid #d5e1ee;
  border-radius: 999px;
  padding: 7px 13px;
  background: #fff;
  color: #3c5d80;
  font: inherit;
  font-size: .78rem;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color .16s ease, background-color .16s ease, color .16s ease;
}

.perp-chip:hover {
  border-color: #b7cfe6;
  background: #f2f8fe;
}

.perp-chip[aria-pressed='true'] {
  border-color: var(--navy, #102b49);
  background: var(--navy, #102b49);
  color: #fff;
}

.perp-status {
  margin: 12px 0 0;
  color: #6a8098;
  font-size: .8rem;
}

.perp-note {
  margin: 18px 0 0;
  border: 1px dashed #cfdcec;
  border-radius: 14px;
  padding: 16px;
  background: #f7fbff;
  color: #4c647d;
  font-size: .86rem;
  line-height: 1.55;
}

.perp-grid {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.perp-card {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 13px;
  border: 1px solid var(--line, #dfe7ef);
  border-radius: 16px;
  padding: 13px;
  background: #fff;
  box-shadow: 0 6px 18px rgba(16, 43, 73, .05);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.perp-card:hover {
  border-color: #c3d8e9;
  box-shadow: 0 12px 28px rgba(16, 43, 73, .1);
  transform: translateY(-2px);
}

.perp-sampul {
  width: 74px;
  height: 106px;
  border: 1px solid #e2eaf3;
  border-radius: 8px;
  background: #f4f8fc center/cover no-repeat;
  object-fit: cover;
}

.perp-karcis {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.perp-judul {
  border: 0;
  padding: 0;
  background: none;
  color: var(--navy, #102b49);
  font: inherit;
  font-size: .96rem;
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
}

.perp-judul:hover {
  color: var(--blue, #1c6bb5);
  text-decoration: underline;
}

.perp-meta {
  margin: 0;
  color: #6a8098;
  font-size: .78rem;
  line-height: 1.4;
}

.perp-baca {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  border: 1px solid var(--blue, #1c6bb5);
  border-radius: 999px;
  padding: 7px 14px;
  background: var(--blue, #1c6bb5);
  color: #fff;
  font: inherit;
  font-size: .78rem;
  font-weight: 800;
  cursor: pointer;
  transition: filter .16s ease, transform .16s ease;
}

.perp-baca:hover {
  filter: brightness(1.08);
}

.perp-baca:active {
  transform: scale(.97);
}

.perp-lanjut {
  align-self: flex-start;
  border: 0;
  padding: 0;
  background: none;
  color: #2f7d4f;
  font: inherit;
  font-size: .75rem;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.perp-lanjut:hover {
  text-decoration: underline;
}

.perp-foot {
  display: flex;
  justify-content: center;
  margin: 18px 0 8px;
}

.perp-more {
  border: 1px solid #cfdcea;
  border-radius: 999px;
  padding: 11px 22px;
  background: #fff;
  color: var(--navy, #102b49);
  font: inherit;
  font-size: .82rem;
  font-weight: 800;
  cursor: pointer;
}

.perp-more:hover {
  border-color: var(--blue, #1c6bb5);
  color: var(--blue, #1c6bb5);
}

.perp-sumber {
  margin: 6px 0 0;
  color: #8298ae;
  font-size: .74rem;
  line-height: 1.5;
}

/* ------------------------------------------------------------- pembaca buku */

body.perp-membaca {
  overflow: hidden;
}

.perp-reader {
  position: fixed;
  inset: 0;
  z-index: 46;
  display: flex;
  flex-direction: column;
  visibility: hidden;
  transform: translateY(100%);
  transition: transform .24s cubic-bezier(.22, .61, .36, 1), visibility .24s;
}

.perp-reader.is-open {
  visibility: visible;
  transform: none;
}

.perp-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: calc(env(safe-area-inset-top) + 8px) 12px 10px;
  background: linear-gradient(120deg, var(--navy, #102b49), #12456f);
  color: #fff;
}

.perp-back {
  display: grid;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  color: #fff;
  font: inherit;
  font-size: 1.05rem;
  cursor: pointer;
}

.perp-back:active {
  transform: scale(.94);
}

.perp-bar-tajuk {
  flex: 1 1 auto;
  min-width: 0;
  display: grid;
}

.perp-bar-tajuk b,
.perp-bar-tajuk small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.perp-bar-tajuk b {
  font-size: .97rem;
}

.perp-bar-tajuk small {
  color: #b9dcf6;
  font-size: .72rem;
}

.perp-reader-alat {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 6px;
}

.perp-alat {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: 999px;
  padding: 6px 11px;
  background: rgba(255, 255, 255, .09);
  color: #fff;
  font: inherit;
  font-size: .74rem;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
}

.perp-alat:hover {
  background: rgba(255, 255, 255, .18);
}

.perp-alat[hidden] {
  display: none;
}

.perp-berkas {
  flex: 0 0 auto;
  max-width: 42vw;
  min-height: 34px;
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: 10px;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  font: inherit;
  font-size: .74rem;
  font-weight: 700;
}

.perp-berkas option {
  color: #102b49;
}

.perp-body {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 22px 16px calc(env(safe-area-inset-bottom) + 92px);
  background: #f6f9fc;
  -webkit-overflow-scrolling: touch;
}

.perp-halaman {
  max-width: 68ch;
  margin: 0 auto;
  border: 1px solid #e2eaf3;
  border-radius: 18px;
  padding: clamp(18px, 5vw, 38px);
  background: #fff;
  box-shadow: 0 12px 34px rgba(16, 43, 73, .08);
}

.perp-halaman p {
  margin: 0 0 1.15em;
  color: #22384f;
  font-size: var(--perp-ukuran, 17.5px);
  line-height: 1.72;
  text-align: justify;
  hyphens: auto;
}

.perp-halaman + .perp-halaman {
  margin-top: 14px;
}

.perp-halaman p:last-child {
  margin-bottom: 0;
}

.perp-halaman p.perp-petit {
  color: #6a8098;
  font-size: calc(var(--perp-ukuran, 17.5px) - .28rem);
  line-height: 1.5;
  text-align: left;
}

.perp-warna {
  margin: 0 0 16px;
  border: 1px solid #f0d9a8;
  border-radius: 12px;
  padding: 11px 13px;
  background: #fff8e9;
  color: #7a5b16;
  font-size: .8rem;
  line-height: 1.5;
}

.perp-kaki {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  border-top: 1px solid #e2eaf3;
  padding: 8px 12px calc(env(safe-area-inset-bottom) + 8px);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(14px);
}

.perp-kaki p {
  margin: 0;
  color: #5d748c;
  font-size: .74rem;
  text-align: center;
}

.perp-terus {
  border: 1px solid #cfdcea;
  border-radius: 999px;
  padding: 8px 16px;
  background: #fff;
  color: var(--navy, #102b49);
  font: inherit;
  font-size: .76rem;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
}

.perp-terus[hidden] {
  display: none;
}

.perp-maju {
  grid-column: 1 / -1;
  height: 3px;
  margin-top: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6eef6;
}

.perp-maju span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--blue, #1c6bb5), #2f7d4f);
  transition: width .2s ease;
}

.perp-kaki-baris {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: 100%;
}

.perp-kaki-tulis {
  min-width: 132px;
}

/* Keterangan halaman dipakai sebagai pintu lompat; tampilannya tetap kalem. */
.perp-reader[data-mode='asli'] #perpReaderInfo {
  border-bottom: 1px dashed #c4d3e2;
  cursor: pointer;
}

.perp-lompat {
  width: 132px;
  border: 1px solid #c4d3e2;
  border-radius: 8px;
  padding: 4px 8px;
  background: #fff;
  color: var(--navy, #102b49);
  font: inherit;
  font-size: .78rem;
  font-weight: 800;
  text-align: center;
}

.perp-lompat[hidden] {
  display: none;
}

.perp-balik {
  display: grid;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid #cfdcea;
  border-radius: 50%;
  background: #fff;
  color: var(--navy, #102b49);
  font: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.perp-balik[hidden] {
  display: none;
}

.perp-balik:active {
  transform: scale(.94);
}

.perp-balik:disabled {
  opacity: .35;
  cursor: default;
}

/* ------------------------------------------------- tampilan dokumen asli (PDF) */

.perp-panggung {
  display: none;
  flex: 1 1 auto;
  /* Gulir vertikal selalu dialokasikan: lebarnya tidak berubah saat halaman
     pertama muncul, jadi buku tidak pernah terpotong di tepi kanan. */
  overflow-y: scroll;
  overflow-x: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 16px 12px calc(env(safe-area-inset-bottom) + 96px);
  background: #e7eff7;
  scrollbar-width: thin;
}

.perp-reader[data-mode='asli'] .perp-panggung {
  display: block;
}

.perp-reader[data-mode='asli'] .perp-body {
  display: none;
}

.perp-sabar {
  width: min(100%, 1180px);
  height: 3px;
  margin: 0 auto 14px;
  overflow: hidden;
  border-radius: 999px;
  background: #d3e1ee;
}

.perp-sabar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--blue, #1c6bb5), #2f7d4f);
  transition: width .18s ease;
}

.perp-sabar.is-penuh {
  opacity: 0;
  transition: opacity .3s ease;
}

.perp-buku {
  position: relative;
  display: flex;
  align-items: flex-start;
  width: fit-content;
  margin: 0 auto;
  border-radius: 8px;
  padding: 12px;
  background: #e6dfd0;
  box-shadow:
    0 34px 60px -26px rgba(12, 32, 54, .62),
    0 6px 18px rgba(12, 32, 54, .2);
}

.perp-buku[data-letak='satu'] .perp-daun + .perp-daun {
  display: none;
}

.perp-daun {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  display: grid;
  place-items: start center;
}

.perp-daun + .perp-daun::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -1px;
  width: 34px;
  background: linear-gradient(90deg, rgba(58, 40, 15, .3), rgba(58, 40, 15, 0));
  pointer-events: none;
}

.perp-daun canvas {
  display: block;
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(12, 32, 54, .22);
}

.perp-daun .perp-tunggu {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 220px;
  border: 1px dashed #c9bfa8;
  border-radius: 4px;
  color: #7b6a4d;
  font-size: .74rem;
}

.perp-nomor {
  position: absolute;
  right: 6px;
  bottom: -20px;
  color: #788ca1;
  font-size: .66rem;
  font-weight: 700;
}

/* --------------------------------------------------------- kop pembaca lainnya */

.perp-mode {
  flex: 0 0 auto;
  display: flex;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .26);
  border-radius: 999px;
}

.perp-mode[hidden] {
  display: none;
}

.perp-mode-tombol {
  border: 0;
  padding: 7px 13px;
  background: transparent;
  color: #cfe4f7;
  font: inherit;
  font-size: .72rem;
  font-weight: 800;
  cursor: pointer;
}

.perp-mode-tombol[aria-pressed='true'] {
  background: rgba(255, 255, 255, .92);
  color: var(--navy, #102b49);
}

/* Suasana baca: kertas dan tintanya yang berganti, kop aplikasi tetap biru. */
.perp-reader[data-tema='krem'] .perp-body {
  background: #ece2cf;
}

.perp-reader[data-tema='krem'] .perp-halaman {
  border-color: #e3d6bd;
  background: #fbf3e4;
}

.perp-reader[data-tema='krem'] .perp-halaman p {
  color: #3a2f1f;
}

/* Halaman hasil pindai dijaga warna aslinya: hanya dipanaskan/diperlembut,
   tidak pernah dibalik (invert) agar gambar dan foto buku tetap benar. */
.perp-reader[data-tema='krem'] .perp-panggung {
  background: #e3d7c2;
}

.perp-reader[data-tema='krem'] .perp-buku {
  background: #d5c8ad;
}

.perp-reader[data-tema='krem'] .perp-daun canvas {
  filter: sepia(.26) saturate(.86) brightness(1.02);
}

.perp-reader[data-tema='krem'] .perp-sabar {
  background: #d3c3a4;
}

.perp-reader[data-tema='malam'] .perp-panggung {
  background: #0b1a2a;
}

.perp-reader[data-tema='malam'] .perp-buku {
  background: #1b2b3c;
  box-shadow: 0 34px 60px -26px rgba(0, 0, 0, .78), 0 6px 18px rgba(0, 0, 0, .34);
}

.perp-reader[data-tema='malam'] .perp-daun canvas {
  filter: brightness(.84) contrast(.95);
}

.perp-reader[data-tema='malam'] .perp-daun .perp-tunggu {
  border-color: #35495f;
  color: #90a8bf;
}

.perp-reader[data-tema='malam'] .perp-nomor {
  color: #90a8bf;
}

.perp-reader[data-tema='malam'] .perp-sabar {
  background: #16293d;
}

.perp-reader[data-tema='malam'] .perp-body {
  background: #0b1a2a;
}

.perp-reader[data-tema='malam'] .perp-halaman {
  border-color: #1d3a56;
  background: #10243a;
}

.perp-reader[data-tema='malam'] .perp-halaman p {
  color: #d8e6f2;
}

.perp-reader[data-tema='malam'] .perp-halaman p.perp-petit {
  color: #8ea6bd;
}

.perp-reader[data-tema='malam'] .perp-kaki {
  border-top-color: #1c3a56;
  background: rgba(9, 22, 36, .95);
}

.perp-reader[data-tema='malam'] .perp-balik {
  border-color: #24405c;
  background: #14293f;
  color: #d8e6f2;
}

.perp-reader[data-tema='malam'] .perp-kaki p {
  color: #9db4c9;
}

.perp-reader[data-tema='malam'] .perp-terus {
  border-color: #24405c;
  background: #14293f;
  color: #d8e6f2;
}

.perp-reader[data-tema='malam'] .perp-maju {
  background: #16293d;
}

.perp-reader[data-tema='malam'] .perp-warna {
  border-color: #4a3c1c;
  background: #241d0e;
  color: #e3c876;
}

@media (min-width: 640px) {
  .perp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .perp-body {
    padding: 30px 24px calc(env(safe-area-inset-bottom) + 100px);
  }

  .perp-panggung {
    padding: 26px 22px calc(env(safe-area-inset-bottom) + 104px);
  }

  .perp-buku {
    padding: 16px;
  }
}

@media (min-width: 1000px) {
  .perp-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .perp-card {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
  }

  .perp-sampul {
    width: 100%;
    height: 190px;
  }

  .perp-head h1 {
    font-size: 2.1rem;
  }
}

/* Pustaka: tombol alat pembaca, tombol muat berikutnya, dan tautan judul
   dulu bertukar warna seketika. Hanya warna/garis/latar yang dianimasikan
   supaya halaman PDF yang diukur skrip tidak pernah bergeser. */
.perp-alat,
.perp-more,
.perp-lanjut,
.perp-judul {
  transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .perp-reader,
  .perp-card,
  .perp-maju span {
    transition: none;
  }

  .perp-alat,
  .perp-more,
  .perp-lanjut,
  .perp-judul {
    transition: none;
    animation: none;
  }
}