/* ==========================================================================
   Biblioteca IBRE-7L — tema e componentes (mobile first)
   ========================================================================== */

:root {
    --cor-primaria: #1d3557;
    --cor-primaria-hover: #152a47;
    --cor-primaria-suave: #e8eef6;
    --cor-destaque: #c8963e;
    --cor-fundo: #f5f6f8;
    --cor-superficie: #ffffff;
    --cor-texto: #1b1f24;
    --cor-suave: #667085;
    --cor-borda: #e4e7ec;
    --cor-sucesso: #1f7a4d;
    --cor-perigo: #b42318;
    --raio: 14px;
    --raio-sm: 10px;
    --sombra: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .08);
    --sombra-alta: 0 8px 24px rgba(16, 24, 40, .12);
    --altura-bottom-nav: 64px;

    --bs-primary: var(--cor-primaria);
    --bs-primary-rgb: 29, 53, 87;
    --bs-link-color: var(--cor-primaria);
    --bs-link-color-rgb: 29, 53, 87;
    --bs-link-hover-color: var(--cor-primaria-hover);
    --bs-body-bg: var(--cor-fundo);
    --bs-body-color: var(--cor-texto);
    --bs-border-color: var(--cor-borda);
    --bs-font-sans-serif: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    background: var(--cor-fundo);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-main { flex: 1; padding-bottom: calc(var(--altura-bottom-nav) + env(safe-area-inset-bottom) + 12px); }
@media (min-width: 992px) { .app-main { padding-bottom: 32px; } }

.min-w-0 { min-width: 0; }
@media (min-width: 768px) { .w-md-auto { width: auto !important; } }

/* ----- Bootstrap: cor primária ----- */
.btn-primary {
    --bs-btn-bg: var(--cor-primaria); --bs-btn-border-color: var(--cor-primaria);
    --bs-btn-hover-bg: var(--cor-primaria-hover); --bs-btn-hover-border-color: var(--cor-primaria-hover);
    --bs-btn-active-bg: var(--cor-primaria-hover); --bs-btn-active-border-color: var(--cor-primaria-hover);
    --bs-btn-disabled-bg: var(--cor-primaria); --bs-btn-disabled-border-color: var(--cor-primaria);
}
.btn-outline-primary {
    --bs-btn-color: var(--cor-primaria); --bs-btn-border-color: var(--cor-primaria);
    --bs-btn-hover-bg: var(--cor-primaria); --bs-btn-hover-border-color: var(--cor-primaria);
    --bs-btn-active-bg: var(--cor-primaria); --bs-btn-active-border-color: var(--cor-primaria);
}
.btn { border-radius: var(--raio-sm); font-weight: 500; }
.btn-lg { border-radius: 12px; }
.nav-pills { --bs-nav-pills-link-active-bg: var(--cor-primaria); --bs-nav-pills-border-radius: 999px; }
.pagination { --bs-pagination-active-bg: var(--cor-primaria); --bs-pagination-active-border-color: var(--cor-primaria); --bs-pagination-color: var(--cor-primaria); }
.progress-bar { background-color: var(--cor-primaria); }
.form-control, .form-select { border-radius: var(--raio-sm); }
.form-control:focus, .form-select:focus, .form-check-input:focus {
    border-color: #6f8db5; box-shadow: 0 0 0 .2rem rgba(29, 53, 87, .15);
}
.form-check-input:checked { background-color: var(--cor-primaria); border-color: var(--cor-primaria); }
.text-bg-primary { background-color: var(--cor-primaria) !important; }
.text-primary { color: var(--cor-primaria) !important; }
.alert { border-radius: var(--raio-sm); }

/* ----- Navbar ----- */
.app-navbar {
    background: rgba(255, 255, 255, .92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--cor-borda);
    padding-top: calc(.5rem + env(safe-area-inset-top));
}
.brand-text { font-weight: 700; font-size: 1.05rem; color: var(--cor-primaria); letter-spacing: -.01em; }
.nav-link-app {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .45rem .8rem; border-radius: 999px;
    color: var(--cor-suave); text-decoration: none; font-weight: 500; font-size: .95rem;
}
.nav-link-app:hover { color: var(--cor-texto); background: var(--cor-fundo); }
.nav-link-app.active { color: var(--cor-primaria); background: var(--cor-primaria-suave); }
.btn-avatar { border: 0; padding: 0; background: none; }
.btn-avatar::after { display: none; }
.avatar {
    width: 36px; height: 36px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    background: var(--cor-primaria); color: #fff; font-weight: 600; flex-shrink: 0;
}
.avatar-lg { width: 44px; height: 44px; }

/* ----- Navegação inferior (mobile) ----- */
.bottom-nav {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 1030;
    display: flex; justify-content: space-around;
    height: calc(var(--altura-bottom-nav) + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--cor-borda);
}
.bottom-nav a, .bottom-nav button {
    flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
    color: var(--cor-suave); text-decoration: none; font-size: .72rem; font-weight: 500;
    background: none; border: 0;
}
.bottom-nav i { font-size: 1.35rem; line-height: 1; }
.bottom-nav .active { color: var(--cor-primaria); }
.bottom-nav .active i { transform: translateY(-1px); }

/* ----- Submenu admin ----- */
.admin-subnav { background: var(--cor-superficie); border-bottom: 1px solid var(--cor-borda); }
.nav-scroll { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.nav-scroll::-webkit-scrollbar { display: none; }
.admin-subnav .nav-link {
    white-space: nowrap; color: var(--cor-suave); font-weight: 500; font-size: .9rem;
    padding: .8rem .75rem; border-bottom: 2px solid transparent; display: flex; align-items: center; gap: .35rem;
}
.admin-subnav .nav-link.active { color: var(--cor-primaria); border-bottom-color: var(--cor-primaria); }
.nav-pills.nav-scroll .nav-link { white-space: nowrap; }

/* ----- Hero / busca ----- */
.hero {
    background-color: var(--cor-primaria);
    border-bottom: 4px solid var(--cor-destaque);
    color: #fff; padding: 1.75rem 0 1.5rem;
}
.hero-title { font-size: clamp(1.5rem, 5vw, 2.4rem); font-weight: 750; letter-spacing: -.02em; margin-bottom: .25rem; }
.hero-sub { opacity: .85; margin-bottom: 1rem; font-size: .95rem; }
.busca-form { max-width: 720px; }
.busca-input { position: relative; }
.busca-input i { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--cor-suave); font-size: 1.1rem; }
.busca-input input {
    width: 100%; height: 54px; border: 0; border-radius: 14px;
    padding: 0 16px 0 46px; font-size: 1rem; box-shadow: var(--sombra-alta); outline: none;
}
.busca-input input:focus { box-shadow: 0 0 0 4px rgba(200, 150, 62, .45), var(--sombra-alta); }
.filtros { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin-top: .75rem; }
.filtros .form-select { width: auto; max-width: 60vw; border: 0; }
.filtros .form-check-label { color: #fff; }

/* ----- Chips ----- */
.chips-scroll { display: flex; gap: .5rem; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.chips-scroll::-webkit-scrollbar { display: none; }
.chip {
    display: inline-flex; align-items: center; white-space: nowrap;
    padding: .38rem .85rem; border-radius: 999px; font-size: .85rem; font-weight: 500;
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); color: var(--cor-texto); text-decoration: none;
}
.chip:hover { border-color: var(--cor-primaria); color: var(--cor-primaria); }
.chip.active { background: var(--cor-primaria); border-color: var(--cor-primaria); color: #fff; }
.chip-sm { padding: .15rem .55rem; font-size: .75rem; }

/* ----- Grade de livros ----- */
.grade-livros { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
@media (min-width: 576px) { .grade-livros { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 768px) { .grade-livros { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; } }
@media (min-width: 1200px) { .grade-livros { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 22px; } }
.card-livro { display: block; text-decoration: none; color: inherit; }
.card-livro .capa {
    position: relative; aspect-ratio: 2 / 3; border-radius: var(--raio-sm); overflow: hidden;
    background: #e9edf2; box-shadow: var(--sombra); transition: transform .18s ease, box-shadow .18s ease;
}
.card-livro .capa img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-livro:hover .capa { transform: translateY(-3px); box-shadow: var(--sombra-alta); }
.card-livro .info { padding: .5rem .1rem 0; }
.card-livro .titulo {
    font-size: .9rem; font-weight: 600; line-height: 1.25; margin: 0;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-livro .autor { font-size: .78rem; color: var(--cor-suave); margin: .15rem 0 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.disp {
    position: absolute; left: 6px; bottom: 6px; font-size: .68rem; font-weight: 600;
    padding: .15rem .45rem; border-radius: 6px; backdrop-filter: blur(6px);
}
.disp-ok { background: rgba(31, 122, 77, .92); color: #fff; }
.disp-nao { background: rgba(27, 31, 36, .78); color: #fff; }

/* ----- Detalhe ----- */
.link-voltar { display: inline-flex; align-items: center; gap: .35rem; color: var(--cor-suave); text-decoration: none; font-weight: 500; }
.link-voltar:hover { color: var(--cor-primaria); }
.detalhe-capa { max-width: 260px; margin: 0 auto; }
.detalhe-capa img { width: 100%; border-radius: var(--raio); box-shadow: var(--sombra-alta); display: block; }
.detalhe-titulo { font-size: clamp(1.4rem, 4vw, 2rem); font-weight: 750; letter-spacing: -.02em; margin-bottom: .2rem; }
.detalhe-subtitulo { font-size: 1.05rem; color: var(--cor-suave); margin-bottom: .35rem; }
.detalhe-autor { font-weight: 500; color: var(--cor-primaria); margin-bottom: .9rem; }
.detalhe-descricao { line-height: 1.7; color: #333b45; }
.badge-status { display: inline-flex; align-items: center; gap: .35rem; padding: .35rem .7rem; border-radius: 999px; font-size: .82rem; font-weight: 600; }
.badge-status.ok { background: #e3f4ea; color: var(--cor-sucesso); }
.badge-status.nao { background: #fdecea; color: var(--cor-perigo); }
.badge-status.neutro { background: var(--cor-primaria-suave); color: var(--cor-primaria); }
.acao-reserva { margin: 1rem 0; }
.secao-titulo { font-size: 1rem; font-weight: 700; margin: 1.6rem 0 .7rem; }
.ficha { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem 1rem; margin: 0 0 1rem; }
@media (min-width: 768px) { .ficha { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.ficha dt { font-size: .75rem; color: var(--cor-suave); font-weight: 500; text-transform: uppercase; letter-spacing: .03em; }
.ficha dd { margin: 0; font-weight: 500; word-break: break-word; }
.admin-atalhos { display: flex; gap: .5rem; padding-top: 1rem; border-top: 1px dashed var(--cor-borda); margin-top: 1rem; }
@media (max-width: 767.98px) {
    .acao-reserva .btn-lg { position: sticky; bottom: calc(var(--altura-bottom-nav) + 10px); }
}

/* ----- Títulos e estados ----- */
.pagina-titulo { font-size: 1.5rem; font-weight: 750; letter-spacing: -.02em; }
.estado-vazio { text-align: center; padding: 3rem 1rem; color: var(--cor-suave); }
.estado-vazio i { font-size: 2.6rem; display: block; margin-bottom: .5rem; opacity: .6; }

/* ----- Listas em cartões ----- */
.lista-cards { display: flex; flex-direction: column; gap: 10px; }
.item-card {
    display: flex; align-items: center; gap: 12px; padding: 10px 12px;
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-radius: var(--raio);
    color: inherit; text-decoration: none; box-shadow: var(--sombra);
}
a.item-card:hover { border-color: #c5cfdc; }
.item-card > img { width: 46px; height: 68px; object-fit: cover; border-radius: 6px; flex-shrink: 0; background: #e9edf2; }
.item-card.inativo { opacity: .6; }
.item-card.borda-perigo { border-left: 4px solid var(--cor-perigo); }
.acoes-reserva { display: flex; flex-wrap: wrap; gap: .4rem; width: 100%; }
@media (min-width: 768px) { .acoes-reserva { width: auto; } }

/* ----- Painéis e estatísticas ----- */
.painel { background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-radius: var(--raio); box-shadow: var(--sombra); }
.painel-cabecalho { display: flex; justify-content: space-between; align-items: center; padding: .9rem 1rem; border-bottom: 1px solid var(--cor-borda); }
.painel-cabecalho h2 { font-size: .95rem; font-weight: 700; margin: 0; }
.painel-cabecalho a { font-size: .85rem; text-decoration: none; }
.painel-linha { display: flex; justify-content: space-between; align-items: center; gap: .75rem; padding: .7rem 1rem; border-bottom: 1px solid var(--cor-borda); }
.painel-linha:last-child { border-bottom: 0; }
.stat-card {
    display: block; height: 100%; padding: .9rem; text-decoration: none; color: var(--cor-texto);
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-radius: var(--raio); box-shadow: var(--sombra);
}
.stat-card:hover { border-color: var(--cor-primaria); }
.stat-card i { font-size: 1.2rem; color: var(--cor-destaque); }
.stat-card .valor { font-size: 1.7rem; font-weight: 750; line-height: 1.1; margin-top: .3rem; }
.stat-card .rotulo { font-size: .78rem; color: var(--cor-suave); }

/* ----- Aprovações ----- */
.barra-acoes {
    position: sticky; top: 64px; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
    padding: .6rem .9rem; margin-bottom: .75rem;
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-radius: var(--raio); box-shadow: var(--sombra);
}
.lista-aprovacao { display: flex; flex-direction: column; gap: 12px; }
.aprovacao-card {
    display: grid; grid-template-columns: auto 72px 1fr; gap: 12px; align-items: start; padding: 12px;
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-radius: var(--raio); box-shadow: var(--sombra);
}
.aprovacao-card .selecao { margin-top: .35rem; width: 1.25em; height: 1.25em; }
.aprovacao-card .capa { width: 72px; aspect-ratio: 2 / 3; object-fit: cover; border-radius: 8px; background: #e9edf2; }
.aprovacao-card .conteudo { min-width: 0; }
.aprovacao-card .descricao { color: #3a4350; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }

/* ----- Formulário do livro ----- */
.capa-preview { aspect-ratio: 2 / 3; max-width: 200px; margin: 0 auto; border-radius: var(--raio-sm); overflow: hidden; background: #e9edf2; }
.capa-preview img { width: 100%; height: 100%; object-fit: cover; display: block; }
.exemplar-linha { display: flex; align-items: center; gap: .5rem; margin-bottom: .45rem; }
.barra-salvar {
    position: sticky; bottom: calc(var(--altura-bottom-nav) + env(safe-area-inset-bottom) + 8px); z-index: 20;
    display: flex; gap: .5rem; margin-top: 1rem; padding: .7rem;
    background: rgba(255, 255, 255, .95); backdrop-filter: blur(10px);
    border: 1px solid var(--cor-borda); border-radius: var(--raio); box-shadow: var(--sombra-alta);
}
@media (min-width: 992px) { .barra-salvar { bottom: 12px; } }
.carregando { position: relative; pointer-events: none; opacity: .75; }

/* ----- Autenticação ----- */
.auth-wrap { min-height: calc(100vh - 160px); display: flex; align-items: center; justify-content: center; padding: 1.5rem 1rem; }
.auth-card {
    width: 100%; max-width: 400px; padding: 2rem 1.5rem;
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-radius: 20px; box-shadow: var(--sombra-alta);
}
.auth-logo { display: block; margin: 0 auto 1rem; }

.app-footer { padding: 1.5rem 0; border-top: 1px solid var(--cor-borda); background: var(--cor-superficie); }

/* ----- Instalação do app ----- */
html.app-instalado .so-navegador { display: none !important; }
@media (display-mode: standalone) { .so-navegador { display: none !important; } }
.banner-instalar {
    display: flex; align-items: center; gap: 12px; margin-top: 1rem; padding: 10px 12px;
    background: var(--cor-superficie); border: 1px solid var(--cor-borda); border-left: 4px solid var(--cor-destaque);
    border-radius: var(--raio); box-shadow: var(--sombra);
}
.banner-instalar img { border-radius: 10px; flex-shrink: 0; }
.banner-instalar.d-none { display: none !important; }
.passos-instalar { padding: .9rem 1rem; border: 1px solid var(--cor-borda); border-radius: var(--raio-sm); margin-bottom: .75rem; }
.passos-instalar.destaque { border-color: var(--cor-primaria); background: var(--cor-primaria-suave); }
.passos-instalar ol { margin: 0; padding-left: 1.2rem; }
.passos-instalar li { margin-bottom: .35rem; }

/* ----- Diversos ----- */
.conteudo-estreito { max-width: 640px; }
.campo-oculto { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.acoes-usuario { display: flex; flex-wrap: wrap; gap: .5rem; width: 100%; justify-content: flex-end; }
.campo-limite { width: 84px; }
@media (min-width: 992px) { .acoes-usuario { width: auto; } }

/* ==========================================================================
   Controles otimizados para toque (celular e tablet)
   Alvos de no mínimo 44px, fonte 16px nos campos (evita zoom automático no iOS).
   ========================================================================== */
html { -webkit-tap-highlight-color: rgba(29, 53, 87, .12); }
button, a, label, select, summary, .form-check-input { touch-action: manipulation; }
input[type="date"]::-webkit-calendar-picker-indicator { padding: 6px; cursor: pointer; }

@media (max-width: 991.98px), (pointer: coarse) {
    /* Campos de texto, selects e áreas de texto */
    .form-control, .form-select,
    .form-control-sm, .form-select-sm,
    .input-group-text {
        font-size: 16px;
        min-height: 48px;
        padding-top: .6rem;
        padding-bottom: .6rem;
    }
    textarea.form-control, textarea.form-control-sm { min-height: 96px; }
    .form-select, .form-select-sm { padding-right: 2.5rem; background-position: right .9rem center; background-size: 18px 14px; }
    .form-control[type="file"] { padding: .55rem .75rem; line-height: 1.8; }
    .form-control[type="file"]::file-selector-button { min-height: 34px; margin-top: -.2rem; margin-bottom: -.2rem; }
    .form-floating > .form-control, .form-floating > .form-select { min-height: 58px; }
    .input-group-lg > .form-control, .input-group-lg > .btn { min-height: 54px; }
    .form-label { font-weight: 500; margin-bottom: .35rem; }

    /* Botões */
    .btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .35rem; }
    .btn-sm { min-height: 40px; padding-left: .8rem; padding-right: .8rem; font-size: .9rem; }
    .btn-lg { min-height: 52px; }
    .btn-link.p-0, .btn-link.p-1 { min-width: 44px; min-height: 44px; }
    .btn-close { width: 1.25em; height: 1.25em; padding: .75rem; }

    /* Checkbox, radio e switch: maiores e com área de toque que inclui o rótulo */
    .form-check { min-height: 44px; display: flex; align-items: center; gap: .65rem; padding-left: 0; }
    .form-check .form-check-input { float: none; margin: 0; flex-shrink: 0; }
    .form-check-input[type="checkbox"], .form-check-input[type="radio"] { width: 1.5rem; height: 1.5rem; }
    .form-check-input[type="checkbox"] { border-radius: .4em; }
    .form-switch { padding-left: 0; }
    .form-switch .form-check-input { width: 3rem; height: 1.6rem; margin-left: 0; }
    .form-check-label { padding: .5rem 0; flex: 1; cursor: pointer; }
    .aprovacao-card .selecao { width: 1.6rem; height: 1.6rem; margin-top: .1rem; }

    /* Listas suspensas, abas e paginação */
    .dropdown-item { padding-top: .75rem; padding-bottom: .75rem; font-size: 1rem; }
    .dropdown-menu { min-width: 14rem; }
    .nav-pills .nav-link { min-height: 44px; display: flex; align-items: center; }
    .admin-subnav .nav-link { min-height: 48px; }
    .page-link { min-width: 44px; min-height: 44px; display: flex; align-items: center; justify-content: center; }
    .chip { min-height: 40px; padding: .45rem 1rem; }
    .chip-sm { min-height: 28px; padding: .2rem .6rem; }

    /* Filtros do catálogo */
    .filtros .form-select { min-height: 44px; max-width: 100%; flex: 1 1 180px; }
    .filtros .form-check-label { padding: .5rem 0; }

    /* Exemplares no formulário do livro */
    .exemplar-linha { gap: .75rem; }
}