/* =====================================================================
   PERPUSTAKAAN SMKN 1 PERCUT SEI TUAN — STYLE UTAMA
   Tema: Biru & Putih, mengikuti warna logo perpustakaan.
   ===================================================================== */

:root {
  /* --- Warna utama, diambil langsung dari logo perpustakaan --- */
  --biru-utama:  #1D74BB;   /* biru sayap buku & teks logo   */
  --biru-tua:    #0E4373;   /* navbar, sidebar, footer       */
  --biru-terang: #4BA3DC;   /* aksen terang, tautan sorot    */
  --teal:        #15BDBD;   /* teal bola dunia pada logo     */
  --teal-muda:   #7FD9D6;

  /* --- Netral --- */
  --tinta:       #14324A;   /* warna teks utama              */
  --tinta-lembut:#5A7183;   /* teks sekunder                 */
  --putih-latar: #F2F7FB;   /* latar halaman                 */
  --putih-kartu: #FFFFFF;   /* latar kartu & panel           */
  --biru-pucat:  #E3EEF7;   /* latar sekunder, judul tabel   */
  --garis:       #CBDCEA;   /* garis pembatas                */

  /* --- Warna status (dipertahankan agar maknanya tetap jelas) --- */
  --sukses:      #1B7A57;
  --peringatan:  #9A6B12;
  --bahaya:      #B3261E;

  /* ---------------------------------------------------------------
     Nama lama tetap dipertahankan sebagai alias agar seluruh halaman
     yang sudah ada langsung ikut berubah warnanya tanpa perlu disunting
     satu per satu. Nilainya kini menunjuk ke palet biru di atas.
     --------------------------------------------------------------- */
  --ink:              var(--tinta);
  --cover-green:      var(--biru-utama);
  --cover-green-dark: var(--biru-tua);
  --brass:            var(--biru-utama);
  --brass-light:      var(--biru-terang);
  --paper:            var(--putih-latar);
  --paper-card:       var(--putih-kartu);
  --paper-deep:       var(--biru-pucat);
  --sage-line:        var(--garis);
  --danger-ink:       var(--bahaya);

  /* Tipografi */
  --font-display: 'Spectral', Georgia, serif;
  --font-body: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--tinta);
  background-color: var(--putih-latar);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(29,116,187,0.06) 1px, transparent 0);
  background-size: 22px 22px;
}

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

h1, h2, h3, .display-font {
  font-family: var(--font-display);
  color: var(--cover-green-dark);
  letter-spacing: -0.01em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 600;
}

a { color: var(--cover-green); }
a:hover { color: var(--brass); }

/* ---------------------------------------------------------------------
   NAVBAR — "papan laci katalog"
   --------------------------------------------------------------------- */
.navbar-katalog {
  background: var(--cover-green-dark);
  border-bottom: 3px solid var(--brass);
}

.navbar-katalog .navbar-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: #FFFFFF;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.navbar-katalog .navbar-brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--brass-light);
  font-weight: 400;
}

.navbar-katalog .nav-link {
  color: #DCEBF7 !important;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.9rem !important;
}

.navbar-katalog .nav-link:hover,
.navbar-katalog .nav-link.active {
  color: var(--brass-light) !important;
}

.btn-brass {
  background: var(--brass);
  border: 1px solid var(--brass);
  color: #FFFFFF;
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}
.btn-brass:hover { background: var(--brass-light); color: #FFFFFF; }

.btn-outline-paper {
  border: 1px solid rgba(241,236,221,0.5);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.btn-outline-paper:hover { background: rgba(241,236,221,0.12); color: #fff; }

/* ---------------------------------------------------------------------
   HERO
   --------------------------------------------------------------------- */
.hero {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  line-height: 1.12;
  margin-bottom: 1rem;
}

.hero .lead {
  color: #3D5A72;
  font-size: 1.08rem;
  max-width: 46ch;
}

.search-drawer {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 6px;
  box-shadow: 0 10px 24px -14px rgba(23,45,38,0.35);
  padding: 0.4rem;
}

.search-drawer .form-control {
  border: none;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}
.search-drawer .form-control:focus { box-shadow: none; }

/* Kartu laci statistik di sisi kanan hero */
.drawer-stack .drawer {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-left: 6px solid var(--brass);
  border-radius: 4px;
  padding: 0.95rem 1.1rem;
  margin-bottom: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: transform 0.15s ease;
}
.drawer-stack .drawer:hover { transform: translateX(4px); }

.drawer .drawer-number {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--cover-green-dark);
}

.drawer .drawer-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #5A7183;
}

/* ---------------------------------------------------------------------
   SECTION UMUM
   --------------------------------------------------------------------- */
.section { padding: 3.2rem 0; }
.section-title { margin-bottom: 0.35rem; }
.section-sub { color: #5A7183; max-width: 60ch; }

.hairline {
  border: none;
  border-top: 1px solid var(--sage-line);
  margin: 0;
}

/* ---------------------------------------------------------------------
   KATEGORI — tab laci
   --------------------------------------------------------------------- */
.kategori-tab {
  display: block;
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 4px;
  padding: 0.9rem 1rem;
  text-decoration: none;
  color: var(--ink);
  height: 100%;
  position: relative;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.kategori-tab:hover {
  border-color: var(--brass);
  box-shadow: 0 8px 18px -12px rgba(23,45,38,0.4);
  color: var(--ink);
}
.kategori-tab .tab-name {
  font-weight: 600;
  font-size: 0.95rem;
  display: block;
  margin-bottom: 0.15rem;
}
.kategori-tab .tab-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--brass);
}
.kategori-tab::before {
  content: "";
  position: absolute;
  top: 0; left: 0.9rem;
  width: 26px; height: 6px;
  background: var(--brass);
  border-radius: 0 0 3px 3px;
}

/* ---------------------------------------------------------------------
   KARTU BUKU — "kartu indeks katalog"
   --------------------------------------------------------------------- */
.buku-card {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 6px;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.buku-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 28px -18px rgba(23,45,38,0.45);
}

.buku-cover {
  aspect-ratio: 3 / 4;
  background: var(--cover-green);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.buku-cover img { width: 100%; height: 100%; object-fit: cover; }
.buku-cover .inisial {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: rgba(241,236,221,0.85);
  font-weight: 600;
}
.buku-cover .call-number {
  position: absolute;
  top: 0.5rem; left: 0.5rem;
  background: rgba(20,28,23,0.75);
  color: var(--brass-light);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  letter-spacing: 0.03em;
}

.buku-body { padding: 0.9rem 1rem 1rem; display: flex; flex-direction: column; flex: 1; }
.buku-judul {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.28;
  margin-bottom: 0.15rem;
}
.buku-penulis { font-size: 0.83rem; color: #5A7183; margin-bottom: 0.6rem; }
.buku-kategori-chip {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 0.5rem;
}

.status-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  display: inline-block;
  margin-top: auto;
  width: fit-content;
}
.status-tersedia { background: #DCF1E7; color: #1B7A57; }
.status-menipis  { background: #FDF0D6; color: #9A6B12; }
.status-habis    { background: #FBE1DF; color: var(--danger-ink); }

/* ---------------------------------------------------------------------
   TENTANG / INFO PERPUSTAKAAN
   --------------------------------------------------------------------- */
.catatan-pustakawan {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 8px;
  padding: 2rem;
  position: relative;
}
.catatan-pustakawan::before {
  content: "";
  position: absolute;
  left: -1px; top: 1.4rem; bottom: 1.4rem;
  width: 4px;
  background: var(--brass);
  border-radius: 2px;
}
.info-list dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brass);
  margin-top: 0.9rem;
}
.info-list dd { margin-bottom: 0; color: var(--ink); }

/* ---------------------------------------------------------------------
   CHATBOT WIDGET (teaser tampilan — logika dibangun pada tahap berikutnya)
   --------------------------------------------------------------------- */
.chatbot-toggle {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--cover-green);
  border: 2px solid var(--brass);
  color: var(--brass-light);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 24px -10px rgba(23,45,38,0.55);
  z-index: 1050;
  cursor: pointer;
}
.chatbot-toggle:hover { background: var(--cover-green-dark); }

.chatbot-panel {
  position: fixed;
  right: 1.5rem;
  bottom: 5.5rem;
  width: 360px;
  max-width: 90vw;
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 10px;
  box-shadow: 0 20px 40px -18px rgba(23,45,38,0.5);
  z-index: 1050;
  display: none;
  overflow: hidden;
}
.chatbot-panel.show { display: block; }
.chatbot-panel .cp-head {
  background: var(--cover-green-dark);
  color: #FFFFFF;
  padding: 0.8rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.chatbot-panel .cp-head small { display:block; color: var(--brass-light); font-size: 0.68rem; }

.chatbot-panel .cp-body {
  padding: 1rem;
  font-size: 0.85rem;
  height: 340px;
  max-height: 55vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.chatbot-panel .cp-bubble {
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.6rem;
  max-width: 88%;
  line-height: 1.55;
  word-wrap: break-word;
}
/* Balasan asisten — rata kiri */
.chatbot-panel .cp-bot {
  background: var(--paper-deep);
  color: var(--ink);
  align-self: flex-start;
  border-bottom-left-radius: 3px;
}
/* Pesan siswa — rata kanan */
.chatbot-panel .cp-user {
  background: var(--cover-green);
  color: #FFFFFF;
  align-self: flex-end;
  border-bottom-right-radius: 3px;
}

/* Titik-titik "sedang mengetik" */
.chatbot-panel .cp-mengetik {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 0.7rem 0.9rem;
}
.chatbot-panel .cp-mengetik span {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #8FAAC2;
  animation: cpBerkedip 1.2s infinite ease-in-out;
}
.chatbot-panel .cp-mengetik span:nth-child(2) { animation-delay: 0.18s; }
.chatbot-panel .cp-mengetik span:nth-child(3) { animation-delay: 0.36s; }
@keyframes cpBerkedip {
  0%, 60%, 100% { opacity: 0.25; transform: translateY(0); }
  30%           { opacity: 1;    transform: translateY(-3px); }
}

/* Pertanyaan contoh */
.chatbot-panel .cp-saran {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.2rem;
}
.chatbot-panel .cp-chip {
  background: transparent;
  border: 1px solid var(--brass);
  color: var(--brass);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
  font-size: 0.75rem;
  cursor: pointer;
  text-align: left;
}
.chatbot-panel .cp-chip:hover { background: var(--brass); color: #FFFFFF; }

.chatbot-panel .cp-foot { padding: 0.7rem; border-top: 1px solid var(--sage-line); }
.chatbot-panel .cp-foot .form-control { border: 1px solid var(--sage-line); }
.chatbot-panel .cp-foot .form-control:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 3px rgba(169,120,47,0.15);
}

@media (max-width: 575.98px) {
  .chatbot-panel { right: 0.75rem; left: 0.75rem; width: auto; bottom: 5rem; }
  .chatbot-toggle { right: 1rem; bottom: 1rem; }
}

/* ---------------------------------------------------------------------
   HALAMAN AUTENTIKASI (LOGIN) — "kartu keanggotaan"
   --------------------------------------------------------------------- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-brand {
  text-align: center;
  margin-bottom: 1.6rem;
}
.auth-brand a {
  text-decoration: none;
  color: var(--biru-tua);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}
.auth-brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--brass);
  text-transform: uppercase;
  margin-top: 0.15rem;
}

.auth-card {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 10px;
  box-shadow: 0 24px 48px -24px rgba(23,45,38,0.4);
  width: 100%;
  max-width: 420px;
  padding: 2.2rem 2rem 1.8rem;
  position: relative;
  overflow: hidden;
}
.auth-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 6px;
  background: var(--brass);
}

.auth-card .eyebrow { display:block; margin-bottom: 0.3rem; }
.auth-card h1 {
  font-size: 1.5rem;
  margin-bottom: 0.3rem;
}
.auth-card .auth-sub {
  color: #5A7183;
  font-size: 0.9rem;
  margin-bottom: 1.6rem;
}

.auth-card label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5A7183;
  margin-bottom: 0.3rem;
}

.auth-card .form-control {
  border: 1px solid var(--sage-line);
  border-radius: 5px;
  padding: 0.6rem 0.85rem;
  font-size: 0.95rem;
}
.auth-card .form-control:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 3px rgba(169,120,47,0.15);
}

.auth-card .input-group .btn-toggle-pw {
  border: 1px solid var(--sage-line);
  border-left: none;
  background: var(--paper-card);
  color: #5A7183;
}

.auth-card .btn-brass {
  width: 100%;
  padding: 0.65rem;
  font-size: 0.9rem;
  border-radius: 5px;
}

.auth-alert {
  border-radius: 6px;
  padding: 0.7rem 0.9rem;
  font-size: 0.85rem;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.auth-alert-danger { background: #FBE1DF; color: var(--danger-ink); border: 1px solid #F0B8B4; }
.auth-alert-warning { background: #FDF0D6; color: #9A6B12; border: 1px solid #F0D89C; }

.auth-back {
  text-align: center;
  margin-top: 1.4rem;
  font-size: 0.85rem;
}
.auth-back a { color: #5A7183; }
.auth-back a:hover { color: var(--brass); }

/* =====================================================================
   AREA ADMIN — LAYOUT (SIDEBAR + TOPBAR + KONTEN)
   ===================================================================== */
.admin-wrapper { display: flex; min-height: 100vh; }

.admin-sidebar {
  width: 264px;
  flex-shrink: 0;
  background: var(--cover-green-dark);
  color: #D6E7F5;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 3px solid var(--brass);
  z-index: 1040;
}

.admin-sidebar .sidebar-brand {
  padding: 1.3rem 1.3rem 1.1rem;
  border-bottom: 1px solid rgba(203,209,198,0.15);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: #FFFFFF;
  text-decoration: none;
}
.admin-sidebar .sidebar-brand .bi { font-size: 1.4rem; color: var(--brass-light); }
.admin-sidebar .sidebar-brand strong { font-family: var(--font-display); font-size: 1.05rem; display:block; }
.admin-sidebar .sidebar-brand small {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.07em;
  text-transform: uppercase; color: var(--brass-light); display:block;
}

.admin-sidebar .nav-section-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7C99AF;
  padding: 1.1rem 1.3rem 0.4rem;
}

.admin-sidebar .nav-link {
  color: #D6E7F5;
  padding: 0.62rem 1.3rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  border-left: 3px solid transparent;
  border-radius: 0;
}
.admin-sidebar .nav-link .bi { font-size: 1rem; width: 1.1rem; text-align: center; }
.admin-sidebar .nav-link:hover { background: rgba(241,236,221,0.06); color: #fff; }
.admin-sidebar .nav-link.active {
  background: rgba(169,120,47,0.18);
  border-left-color: var(--brass);
  color: #FFFFFF;
  font-weight: 600;
}

.admin-sidebar .sidebar-foot {
  padding: 1rem 1.3rem;
  border-top: 1px solid rgba(203,209,198,0.15);
  margin-top: 1rem;
}

.admin-main { flex: 1; min-width: 0; background: var(--paper); }

.admin-topbar {
  background: var(--paper-card);
  border-bottom: 1px solid var(--sage-line);
  padding: 0.9rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 1030;
}
.admin-topbar h1 {
  font-size: 1.25rem;
  margin: 0;
}
.admin-topbar .btn-sidebar-toggle {
  border: 1px solid var(--sage-line);
  background: var(--paper-card);
  color: var(--ink);
  display: none;
}

.admin-content { padding: 1.6rem; }

.admin-sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20,28,23,0.45);
  z-index: 1035;
}

@media (max-width: 991.98px) {
  .admin-sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    height: 100vh;
    transition: left 0.22s ease;
  }
  .admin-sidebar.show { left: 0; }
  .admin-topbar .btn-sidebar-toggle { display: inline-flex; }
  .admin-sidebar-backdrop.show { display: block; }
}

/* ---- Kartu Statistik ---- */
.stat-card {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-left: 5px solid var(--brass);
  border-radius: 6px;
  padding: 1.1rem 1.3rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}
.stat-card .stat-number {
  font-family: var(--font-mono);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--cover-green-dark);
  line-height: 1.1;
}
.stat-card .stat-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5A7183;
}
.stat-card .stat-icon { font-size: 1.7rem; color: var(--brass); flex-shrink: 0; }
.stat-card.stat-highlight { border-left-color: var(--teal); background: #E6F7F7; }
.stat-card.stat-highlight .stat-number,
.stat-card.stat-highlight .stat-icon { color: #1B7A57; }

/* ---- Panel Konten ---- */
.admin-panel {
  background: var(--paper-card);
  border: 1px solid var(--sage-line);
  border-radius: 8px;
  overflow: hidden;
}
.admin-panel .panel-head {
  padding: 1rem 1.3rem;
  border-bottom: 1px solid var(--sage-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.admin-panel .panel-head h2 {
  font-size: 1.05rem;
  margin: 0;
}
.admin-panel .panel-body { padding: 0; }

/* ---- Tabel Admin ---- */
.admin-table { margin-bottom: 0; }
.admin-table thead th {
  background: var(--paper-deep);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #42627D;
  border-bottom: none;
  white-space: nowrap;
}
.admin-table td { vertical-align: middle; font-size: 0.88rem; }
.admin-table tbody tr:hover { background: #F4F9FD; }

.status-pill {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.22rem 0.55rem;
  border-radius: 3px;
  display: inline-block;
  white-space: nowrap;
}
.status-dipinjam     { background: #DCEAF7; color: #1D5A8F; }
.status-dikembalikan { background: #DCF1E7; color: #1B7A57; }
.status-terlambat    { background: #FBE1DF; color: var(--danger-ink); }
.status-hilang       { background: #DCEBF7; color: #4A5F70; }
.status-menunggu     { background: #FDF0D6; color: #9A6B12; }

/* Varian alert sukses (melengkapi .auth-alert-danger / .auth-alert-warning) */
.auth-alert-success { background: #DCF1E7; color: #1B7A57; border: 1px solid #B4E0CB; }

/* ---- Form di dalam halaman admin (tambah/edit buku, anggota, dsb.) ---- */
.admin-content .form-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5A7183;
  margin-bottom: 0.3rem;
}
.admin-content .form-control,
.admin-content .form-select {
  border: 1px solid var(--sage-line);
  border-radius: 5px;
  font-size: 0.92rem;
}
.admin-content .form-control:focus,
.admin-content .form-select:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 3px rgba(169,120,47,0.15);
}
.admin-content .form-text { font-size: 0.78rem; color: #7C99AF; }

/* Thumbnail cover di dalam tabel */
.table-cover-thumb {
  width: 42px;
  height: 56px;
  object-fit: cover;
  border-radius: 3px;
  border: 1px solid var(--sage-line);
  background: var(--cover-green);
}
.table-cover-placeholder {
  width: 42px;
  height: 56px;
  border-radius: 3px;
  border: 1px solid var(--sage-line);
  background: var(--cover-green);
  color: rgba(241,236,221,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
}

/* Kotak pratinjau cover di form tambah/edit buku */
.cover-preview {
  width: 150px;
  height: 198px;
  border: 1px dashed var(--sage-line);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--paper-deep);
  flex-shrink: 0;
}
.cover-preview img { width: 100%; height: 100%; object-fit: cover; }
.cover-preview .placeholder-text {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #7C99AF;
  text-align: center;
  padding: 0.5rem;
}

/* ---- Modal (form Tambah/Edit Kategori, Rak, dsb.) ---- */
.modal-content {
  border-radius: 8px;
  border: 1px solid var(--sage-line);
}
.modal-header {
  background: var(--cover-green-dark);
  color: #FFFFFF;
  border-bottom: 3px solid var(--brass);
  border-radius: 8px 8px 0 0;
}
.modal-header .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}
.modal-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
}
.modal-footer { border-top: 1px solid var(--sage-line); }

/* ---------------------------------------------------------------------
   AREA SISWA
   --------------------------------------------------------------------- */
.body-siswa {
  background-color: var(--paper);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.body-siswa main { flex: 1; }
.body-siswa .navbar-katalog { position: sticky; top: 0; z-index: 1030; }
.body-siswa .buku-card .buku-body { padding: 0.7rem 0.8rem 0.8rem; }

/* ---------------------------------------------------------------------
   PASANGAN LOGO — Pemprov Sumut & Perpustakaan
   Dipakai berdampingan di halaman depan, area admin, dan portal siswa.
   --------------------------------------------------------------------- */
.pasangan-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}
.pasangan-logo img {
  display: block;
  width: auto;
  max-width: 90px;      /* pengaman agar logo tidak melebar berlebihan */
  object-fit: contain;
}
/* Pemisah tipis antara kedua logo */
.pasangan-logo .pemisah-logo {
  width: 1px;
  align-self: stretch;
  background: var(--garis);
  opacity: 0.8;
}

/* Ukuran untuk navbar / sidebar */
.pasangan-logo-kecil img { height: 30px; max-width: 46px; }
/* Ukuran untuk kop halaman depan & halaman login */
.pasangan-logo-besar img { height: 62px; max-width: 88px; }
.pasangan-logo-besar { gap: 0.9rem; }

/* Di atas latar biru tua, pemisahnya dibuat terang */
.navbar-katalog .pasangan-logo .pemisah-logo,
.admin-sidebar .pasangan-logo .pemisah-logo {
  background: rgba(255,255,255,0.28);
}

/* Kop halaman depan: dua logo + nama instansi */
.kop-instansi {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  text-align: center;
  padding: 1.4rem 1rem;
  background: var(--putih-kartu);
  border: 1px solid var(--garis);
  border-radius: 10px;
  border-top: 4px solid var(--biru-utama);
}
.kop-instansi .teks-kop { text-align: left; }
.kop-instansi .teks-kop .nama-instansi {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--biru-tua);
  line-height: 1.3;
  margin: 0;
}
.kop-instansi .teks-kop .sub-instansi {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--biru-utama);
  margin: 0.2rem 0 0;
}

@media (max-width: 575.98px) {
  .pasangan-logo-besar img { height: 48px; max-width: 70px; }
  .pasangan-logo-kecil img { height: 26px; max-width: 40px; }
  .kop-instansi { gap: 0.8rem; padding: 1rem 0.8rem; }
  .kop-instansi .teks-kop { text-align: center; }
  .kop-instansi .teks-kop .nama-instansi { font-size: 1rem; }
}

/* ---------------------------------------------------------------------
   PAPAN PENGUMUMAN (halaman depan)
   --------------------------------------------------------------------- */
.papan-pengumuman {
  background: #FDF0D6;
  border: 1px solid #F0D89C;
  border-left: 5px solid var(--brass);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  color: #8A5F10;
  font-size: 0.95rem;
  line-height: 1.55;
}
.papan-pengumuman .bi {
  font-size: 1.25rem;
  color: var(--brass);
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.papan-pengumuman .label-pengumuman {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

/* ---------------------------------------------------------------------
   ATURAN CETAK — berlaku untuk seluruh halaman admin
   Sidebar, topbar, dan tombol disembunyikan agar hasil cetak bersih.
   --------------------------------------------------------------------- */
@media print {
  .admin-sidebar,
  .admin-sidebar-backdrop,
  .admin-topbar,
  .btn,
  .pagination,
  .nav-pills,
  form.d-inline {
    display: none !important;
  }

  .admin-wrapper { display: block !important; }
  .admin-main    { width: 100% !important; }
  .admin-content { padding: 0 !important; }

  body { background: #fff !important; }

  .admin-panel {
    border: 1px solid #000 !important;
    box-shadow: none !important;
    break-inside: avoid;
  }
  .admin-panel .panel-head { border-bottom: 1px solid #000 !important; }

  .admin-table thead th { background: #e8e8e8 !important; }
  thead { display: table-header-group; }
  tr { page-break-inside: avoid; }

  a[href]::after { content: ""; }  /* jangan cetak URL di belakang tautan */

  @page { margin: 1.5cm; }
}

/* =====================================================================
   FOOTER
   --------------------------------------------------------------------- */
.footer-katalog {
  background: var(--cover-green-dark);
  color: #D6E7F5;
  padding: 2.5rem 0 1.2rem;
  margin-top: 2rem;
}
.footer-katalog h6 {
  font-family: var(--font-mono);
  color: var(--brass-light);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.footer-katalog a { color: #D6E7F5; text-decoration: none; font-size: 0.9rem; }
.footer-katalog a:hover { color: var(--brass-light); }
.footer-katalog .copyright {
  border-top: 1px solid rgba(203,209,198,0.15);
  margin-top: 1.6rem;
  padding-top: 1.1rem;
  font-size: 0.78rem;
  color: #8FAAC2;
  font-family: var(--font-mono);
}

@media (max-width: 767.98px) {
  .hero { padding: 2.8rem 0 2rem; text-align: left; }
  .section { padding: 2.2rem 0; }
}