/* Biblioteca Escolar - Tema sóbrio, cards, ícones */
:root {
    --color-bg: #f5f1eb;
    --color-surface: #fff;
    --color-primary: #2c5530;
    --color-primary-light: #3d7542;
    --color-accent: #8b6914;
    --color-text: #2d2d2d;
    --color-muted: #6b6b6b;
    --color-border: #d4cfc4;
    --color-danger: #a52a2a;
    --color-warning: #b8860b;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --radius: 8px;
    --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.5; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* Containers – uso em todo o site */
.container { max-width: 1140px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }
.container-sm { max-width: 720px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }
.container-lg { max-width: 1320px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }
@media (min-width: 768px) {
    .container { padding: 0 1.5rem; }
    .container-sm, .container-lg { padding: 0 1.5rem; }
}

/* Header público */
.header-public { background: var(--color-primary); color: #fff; padding: 0.75rem 0; box-shadow: var(--shadow); }
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.logo { display: flex; align-items: center; gap: 0.5rem; color: #fff; font-weight: 700; font-size: 1.25rem; }
.logo:hover { color: #fff; opacity: 0.9; text-decoration: none; }
.logo i { font-size: 1.5rem; }
.nav-main { display: flex; gap: 1rem; align-items: center; }
.nav-main a { color: rgba(255,255,255,0.95); }
.nav-main a:hover { color: #fff; text-decoration: none; }

/* Main – área pública */
.main-content { min-height: calc(100vh - 140px); padding: 2rem 0 3rem; }
.main-content .container { background: transparent; }
.footer-public { background: var(--color-text); color: #fff; padding: 1.25rem 1rem; text-align: center; font-size: 0.9rem; }
.footer-public .container { max-width: 1140px; }
.footer-public-inner { display: flex; flex-direction: column; gap: 0.6rem; align-items: center; }
.footer-copy { margin: 0; max-width: 920px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.9rem; justify-content: center; }
.footer-links a { color: #fff; font-weight: 600; }
.footer-links a:hover { color: #f3e6be; }

/* Página inicial e seções */
.page-title { margin-bottom: 0.5rem; color: var(--color-primary); font-size: 1.5rem; }
.lead { color: var(--color-muted); margin-bottom: 1.5rem; font-size: 1rem; }
.page-estante-publica { padding-top: 0.5rem; }
.page-politica { max-width: 920px; }
.page-politica-publicacao { max-width: 980px; }
.politica-card {
    background: var(--color-surface);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    padding: 1.4rem 1.25rem;
    margin-bottom: 1rem;
}
.politica-card h2 {
    margin: 1.25rem 0 0.45rem;
    color: var(--color-primary);
    font-size: 1.05rem;
}
.politica-card p { margin: 0 0 0.7rem; }
.politica-meta { margin-top: 1.25rem; font-size: 0.88rem; color: var(--color-muted); }
.politica-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 0 0 1rem;
}
.politica-tabs a {
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.32rem 0.78rem;
    font-size: 0.88rem;
    color: var(--color-text);
    background: #f8f4ee;
}
.politica-tabs a:hover { text-decoration: none; border-color: var(--color-primary); color: var(--color-primary); }
.politica-resumo-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.7rem;
    margin: 0 0 1rem;
}
.politica-resumo-item {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 0.75rem 0.8rem;
    background: #fbfaf7;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.politica-resumo-item strong { font-size: 0.9rem; color: var(--color-primary); }
.politica-resumo-item span { font-size: 0.85rem; color: var(--color-muted); }
.politica-highlight {
    border: 1px solid #d8c27d;
    background: #fff8e2;
    color: #564100;
    border-radius: var(--radius);
    padding: 0.7rem 0.8rem;
    margin-bottom: 0.95rem;
}
.politica-form-layout {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(250px, 1fr);
    gap: 0.95rem;
    align-items: start;
}
.politica-form { margin-top: 0.45rem; }
.politica-form-section {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: #fcfcfb;
    padding: 0.85rem 0.85rem 0.55rem;
    margin-bottom: 0.75rem;
}
.politica-form-section h3 {
    margin: 0 0 0.65rem;
    color: var(--color-primary);
    font-size: 1rem;
}
.politica-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem 0.8rem;
}
.politica-form-full { grid-column: 1 / -1; }
.politica-check {
    display: flex;
    gap: 0.55rem;
    align-items: flex-start;
    margin-top: 0.9rem;
    font-size: 0.9rem;
}
.politica-check input { margin-top: 0.22rem; }
.politica-form-actions {
    margin-top: 1rem;
    display: flex;
    justify-content: flex-start;
}
.politica-sidepanel {
    border: 1px solid var(--color-border);
    border-radius: 10px;
    background: #f9f5ef;
    padding: 0.9rem 0.9rem 0.75rem;
}
.politica-sidepanel h3 {
    margin: 0 0 0.55rem;
    color: var(--color-primary);
    font-size: 0.98rem;
}
.politica-sidepanel ul {
    margin: 0 0 0.8rem;
    padding-left: 1.05rem;
}
.politica-sidepanel li {
    margin: 0 0 0.35rem;
    font-size: 0.88rem;
}
.politica-sidepanel-note {
    font-size: 0.84rem;
    color: #4a4a4a;
    border-top: 1px dashed #cdbf9b;
    padding-top: 0.65rem;
}
button.is-loading { opacity: 0.85; cursor: wait; }
@media (max-width: 700px) {
    .politica-resumo-grid { grid-template-columns: 1fr; }
    .politica-form-layout { grid-template-columns: 1fr; }
    .politica-form-grid { grid-template-columns: 1fr; }
}

/* Filtros */
.filtros-form { margin-bottom: 1.5rem; }
.filtros-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 0.5rem; align-items: center; }
@media (min-width: 768px) { .filtros-grid { grid-template-columns: 2fr 1fr 1fr auto; } }
.input-busca { padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.filtros-grid select { padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius); }

/* Botões */
.btn { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.5rem 1rem; border-radius: var(--radius); font-size: 0.95rem; cursor: pointer; border: 1px solid transparent; font-family: inherit; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-light); text-decoration: none; color: #fff; }
.btn-outline { background: transparent; border-color: var(--color-border); color: var(--color-text); }
.btn-outline:hover { background: var(--color-surface); text-decoration: none; }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.85rem; }

/* Grid de livros */
.livros-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1.25rem; }
.card-livro { background: var(--color-surface); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: transform 0.2s, box-shadow 0.2s; }
.card-livro:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
.card-link { display: block; color: inherit; }
.card-link:hover { text-decoration: none; color: inherit; }
.card-capa { position: relative; aspect-ratio: 3/4; background: var(--color-border); overflow: hidden; }
.card-capa img { width: 100%; height: 100%; object-fit: cover; }
.capa-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 3rem; color: var(--color-muted); }
.badge { position: absolute; top: 0.5rem; right: 0.5rem; padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.badge-digital { background: var(--color-primary); color: #fff; }
.badge-fisico { background: var(--color-accent); color: #fff; }
.badge-danger { background: var(--color-danger); color: #fff; }
.badge-warning { background: var(--color-warning); color: #fff; }
.badge-success { background: #228b22; color: #fff; }
.card-body { padding: 0.75rem; }
.card-titulo { margin: 0 0 0.25rem; font-size: 0.95rem; line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-autor, .card-categoria, .card-disponivel { margin: 0; font-size: 0.8rem; color: var(--color-muted); }

/* Paginação */
.paginacao { display: flex; gap: 0.35rem; margin-top: 1.5rem; flex-wrap: wrap; }
.sem-resultados { color: var(--color-muted); padding: 2rem; text-align: center; }

/* Livro ver */
.page-livro-ver { max-width: 900px; margin: 0 auto; padding-top: 0.5rem; }
.livro-detalhe { display: grid; grid-template-columns: 220px 1fr; gap: 2rem; align-items: start; background: var(--color-surface); padding: 1.5rem; border-radius: 12px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
@media (max-width: 600px) { .livro-detalhe { grid-template-columns: 1fr; padding: 1rem; } }
.livro-capa-grande { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.livro-capa-grande img { width: 100%; display: block; }
.livro-capa-grande .capa-placeholder { min-height: 280px; }
.livro-info h1 { margin-top: 0; font-size: 1.5rem; }
.livro-info .autor { font-size: 1.1rem; color: var(--color-muted); }
.sinopse { margin-top: 1rem; }
.sinopse h3 { font-size: 1rem; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1rem; margin-top: 1rem; }

/* Auth */
.auth-page { max-width: 420px; margin: 0 auto; padding: 2.5rem 0; }
.auth-card { background: var(--color-surface); padding: 2rem; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.auth-card-wide { max-width: 560px; margin: 0 auto; }
.auth-card h1 { margin-top: 0; text-align: center; color: var(--color-primary); font-size: 1.35rem; }
.auth-footer { text-align: center; margin-top: 1.25rem; font-size: 0.9rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.35rem; font-weight: 500; }
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea { width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--color-border); border-radius: var(--radius); font-family: inherit; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.alert { padding: 0.75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; }
.alert-danger { background: #fdd; border: 1px solid #fcc; color: #800; }
.alert-success { background: #dfd; border: 1px solid #cfc; color: #080; }
.alert-warning { background: #ffc; border: 1px solid #ee0; }

/* Dashboard layout */
.layout-dashboard { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: var(--color-primary); color: #fff; display: flex; flex-direction: column; flex-shrink: 0; }
.sidebar-header { padding: 1rem; border-bottom: 1px solid rgba(255,255,255,0.2); }
.sidebar-header a { color: #fff; font-weight: 700; display: flex; align-items: center; gap: 0.5rem; }
.sidebar-header a:hover { color: #fff; opacity: 0.9; text-decoration: none; }
.sidebar-nav { flex: 1; padding: 0.5rem 0; }
.sidebar-nav a { display: flex; align-items: center; gap: 0.5rem; padding: 0.6rem 1rem; color: rgba(255,255,255,0.9); }
.sidebar-nav a:hover { background: rgba(255,255,255,0.1); color: #fff; text-decoration: none; }
.sidebar-footer { padding: 1rem; border-top: 1px solid rgba(255,255,255,0.2); font-size: 0.85rem; }
.user-name { display: block; margin-bottom: 0.35rem; }
.sidebar-footer a { color: rgba(255,255,255,0.9); }
.sidebar-footer a:hover { color: #fff; text-decoration: none; }
.dashboard-main { flex: 1; overflow: auto; }
.content { padding: 1.5rem; }

@media (max-width: 768px) {
    .sidebar { width: 100%; }
    .layout-dashboard { flex-direction: column; }
}

.dashboard-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.dashboard-header h1 { margin: 0; font-size: 1.35rem; color: var(--color-primary); display: flex; align-items: center; gap: 0.5rem; }
.dashboard-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card { background: var(--color-surface); padding: 1.25rem; border-radius: var(--radius); box-shadow: var(--shadow); text-align: center; }
.stat-card i { font-size: 1.75rem; color: var(--color-primary); margin-bottom: 0.5rem; }
.stat-value { display: block; font-size: 1.75rem; font-weight: 700; color: var(--color-text); }
.stat-label { font-size: 0.8rem; color: var(--color-muted); }
.stat-card-warning .stat-value, .stat-card-warning i { color: var(--color-warning); }
.dashboard-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* Tables */
.table-responsive { overflow-x: auto; margin-bottom: 1.5rem; border-radius: 12px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.table { width: 100%; border-collapse: collapse; background: var(--color-surface); }
.table th, .table td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--color-border); }
.table th { background: var(--color-bg); font-weight: 600; }
.table tbody tr:hover { background: rgba(0,0,0,0.02); }
.table tr:last-child td { border-bottom: none; }
.thumb { max-width: 48px; max-height: 48px; object-fit: cover; border-radius: 6px; }

/* Forms dashboard */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .full-width { grid-column: 1 / -1; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.checkbox-inline { display: inline-block; margin-right: 1rem; }
.relatorio-section { margin-bottom: 2rem; }
.relatorio-section h2 { font-size: 1.1rem; margin-bottom: 0.75rem; color: var(--color-primary); }

/* Leitor PDF */
.leitor-container {
  height: clamp(360px, calc(100vh - 9.5rem), 920px);
  min-height: 360px;
  display: flex;
  flex-direction: column;
}

.leitor-container.is-fullscreen {
  width: 100%;
  max-width: none;
  padding: 0.35rem 0.5rem 0.45rem;
  background: #eef1f6;
}

.leitor-container.is-fullscreen .pdf-viewport {
  border-radius: 10px;
}

.leitor-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  padding: 0.35rem 0 0.55rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0.55rem;
}

.leitor-titulo {
  margin: 0;
  font-size: 1.08rem;
  flex: 1;
  min-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leitor-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.88rem;
  color: var(--color-muted);
}

.leitor-viewer {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.pdf-viewport {
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(8px, 1.5vw, 16px);
  border-radius: 14px;
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, #f7f8fb 0%, #eceff3 100%);
  touch-action: pan-y;
  user-select: none;
}

.pdf-flip-shadow {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  background: linear-gradient(90deg, rgba(18, 23, 33, 0.24) 0%, rgba(18, 23, 33, 0.02) 55%, rgba(18, 23, 33, 0) 100%);
}

.leitor-nav-float {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.7);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 3;
  transition: background 0.18s ease, transform 0.18s ease, opacity 0.18s ease;
}

.leitor-nav-float.is-left {
  left: 12px;
}

.leitor-nav-float.is-right {
  right: 12px;
}

.leitor-nav-float:hover {
  background: rgba(15, 23, 42, 0.9);
}

.leitor-nav-float:active {
  transform: translateY(-50%) scale(0.96);
}

.leitor-nav-float[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
}

#pdf-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  background: #fff;
  box-shadow: 0 10px 34px rgba(17, 24, 39, 0.22);
  border-radius: 4px;
  cursor: grab;
  transition: transform 0.28s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.28s ease;
}

#pdf-canvas.is-dragging {
  cursor: grabbing;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.28);
}

.leitor-swipe-tip {
  margin: 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-muted);
}

.leitor-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 0.25rem 0 0.15rem;
  flex-wrap: wrap;
}

.leitor-controls .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

@media (max-width: 900px) {
  .leitor-container {
    min-height: 0;
    height: clamp(280px, calc(100vh - 7.75rem), 860px);
  }

  .leitor-header {
    gap: 0.55rem;
    padding-bottom: 0.45rem;
  }

  .leitor-titulo {
    min-width: 150px;
    font-size: 1rem;
    white-space: normal;
  }

  .leitor-meta {
    width: 100%;
    justify-content: space-between;
    font-size: 0.82rem;
  }

  .pdf-viewport {
    border-radius: 10px;
    padding: 8px;
  }

  .leitor-controls {
    gap: 0.55rem;
  }

  .leitor-controls .btn {
    padding: 0.45rem 0.66rem;
    font-size: 0.82rem;
  }

  .leitor-swipe-tip {
    font-size: 0.74rem;
  }

  .leitor-nav-float {
    width: 36px;
    height: 36px;
  }

  .leitor-nav-float.is-left {
    left: 8px;
  }

  .leitor-nav-float.is-right {
    right: 8px;
  }
}