/* =========================================================
   CÁRCAMO — Uma biblioteca digital
   Paleta: pergaminho escuro, não preto de tech.
   ========================================================= */

:root {
    --bg: #1C1712;
    --bg-alt: #241D16;
    --panel: #2A231A;
    --border: #4A3D2C;
    --text: #EDE3D3;
    --text-muted: #A99A80;
    --text-dim: #7A6D57;
    --accent: #C97A3D;       /* terracota envelhecida — capa de couro */
    --accent-hover: #DA8C4E;
    --accent-deep: #8B4A2B;
    --gold: #C9A84C;         /* detalhe dourado, tipo lombada antiga */

    --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
    --font-body: 'Source Serif 4', Georgia, serif;
    --font-ui: 'Inter', -apple-system, sans-serif;

    --radius: 3px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    background-image:
        radial-gradient(ellipse 1000px 600px at 50% 0%, rgba(201,122,61,0.07), transparent 60%);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ---------- Cabeçalho ---------- */
.site-header {
    padding: 28px 40px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 16px;
}

.brand-block { display: flex; flex-direction: column; }

.brand-name {
    font-family: var(--font-display);
    font-size: 34px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
}

.brand-sub {
    font-family: var(--font-ui);
    font-size: 13px;
    color: var(--accent);
    letter-spacing: 0.04em;
    margin-top: 2px;
}

.header-nav {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
    font-family: var(--font-ui);
    font-size: 13px;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}
.header-nav a { transition: color .15s; border-bottom: 1px solid transparent; padding-bottom: 3px; }
.header-nav a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Container ---------- */
.wrap {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 40px 80px;
}

/* ---------- Hero de busca ---------- */
.hero {
    padding: 56px 0 40px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 500;
    max-width: 560px;
    margin: 0 auto 24px;
    color: var(--text);
    line-height: 1.35;
}
.hero-title em { color: var(--accent); font-style: normal; }

.search-box {
    max-width: 480px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 13px 18px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 14px;
    outline: none;
    transition: border-color .15s;
}
.search-box input::placeholder { color: var(--text-dim); }
.search-box input:focus { border-color: var(--accent); }

/* ---------- Filtros de categoria ---------- */
.category-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 18px;
}
.category-chip {
    font-family: var(--font-ui);
    font-size: 12.5px;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    cursor: pointer;
    background: transparent;
    transition: border-color .15s, color .15s, background .15s;
}
.category-chip:hover { color: var(--text); border-color: var(--text-dim); }
.category-chip.active { color: var(--bg); background: var(--accent); border-color: var(--accent); font-weight: 600; }

.favorites-filter {
    margin: 14px auto 0;
    padding: 7px 14px;
    border: 1px solid var(--accent-deep);
    border-radius: 999px;
    background: transparent;
    color: var(--accent);
    font: 600 12px var(--font-ui);
    cursor: pointer;
    transition: background .15s, color .15s, border-color .15s;
}
.favorites-filter:hover,
.favorites-filter.active {
    background: rgba(201,122,61,0.12);
    border-color: var(--accent);
    color: var(--accent-hover);
}

/* ---------- Seção / título de trilha ---------- */
.section-title {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 500;
    margin-bottom: 18px;
    color: var(--text);
    display: flex;
    align-items: baseline;
    gap: 10px;
}
.section-title .count {
    font-family: var(--font-ui);
    font-size: 12px;
    color: var(--text-dim);
    font-weight: 400;
}

/* ---------- Estante (grid de livros) ---------- */
.shelf {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 26px 20px;
    margin-bottom: 48px;
}

.book-card {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    position: relative;
}

.book-card-link { display: block; }

.favorite-button {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 2;
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(237,227,211,0.35);
    border-radius: 50%;
    background: rgba(28,23,18,0.84);
    color: var(--text);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: color .15s, border-color .15s, transform .15s, background .15s;
}
.favorite-button:hover { transform: scale(1.06); border-color: var(--accent); color: var(--accent); }
.favorite-button.active { color: var(--accent-hover); border-color: var(--accent); background: rgba(28,23,18,0.94); }
.favorite-button:disabled { opacity: .55; cursor: wait; }

.book-cover {
    position: relative;
    aspect-ratio: 2 / 3;
    background: linear-gradient(160deg, var(--panel), var(--bg-alt));
    border: 1px solid var(--border);
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 3px 4px 0 rgba(0,0,0,0.35);
    transition: transform .2s ease, box-shadow .2s ease;
}
.book-card:hover .book-cover {
    transform: translateY(-4px) rotate(-0.5deg);
    box-shadow: 5px 8px 0 rgba(0,0,0,0.4);
}

.book-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
}

/* capa "placeholder" quando o livro ainda não tem imagem cadastrada */
.book-cover.no-image {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px;
    text-align: center;
}
.book-cover.no-image .placeholder-title {
    font-family: var(--font-display);
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.3;
}
.book-cover.no-image::before {
    content: "";
    position: absolute;
    left: 10px; top: 0; bottom: 0;
    width: 1px;
    background: var(--border);
}

.book-info { margin-top: 10px; }
.book-title {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.book-author {
    font-family: var(--font-ui);
    font-size: 11.5px;
    color: var(--text-dim);
    margin-top: 3px;
}

.empty-shelf {
    font-family: var(--font-ui);
    font-size: 13px;
    color: var(--text-dim);
    padding: 40px 0;
    text-align: center;
    grid-column: 1 / -1;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

/* ---------- Rodapé ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 24px 40px;
    font-family: var(--font-ui);
    font-size: 12px;
    color: var(--text-dim);
    text-align: center;
}
.site-footer a { color: var(--accent); }

/* =========================================================
   Página individual do livro (livro.html)
   ========================================================= */

.book-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 48px 40px 80px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-ui);
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 32px;
    transition: color .15s;
}
.back-link:hover { color: var(--accent); }

.book-detail {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 44px;
}

.detail-cover {
    aspect-ratio: 2 / 3;
    background: linear-gradient(160deg, var(--panel), var(--bg-alt));
    border: 1px solid var(--border);
    border-radius: 2px;
    box-shadow: 6px 8px 0 rgba(0,0,0,0.35);
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    text-align: center;
}
.detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.detail-cover .placeholder-title { font-family: var(--font-display); color: var(--text-muted); font-size: 16px; }

.detail-category {
    display: inline-block;
    font-family: var(--font-ui);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--accent-deep);
    border-radius: 999px;
    padding: 4px 12px;
    margin-bottom: 14px;
}

.detail-labels {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}
.detail-labels .detail-category { margin-bottom: 0; }

.status-badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 4px 9px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font: 600 10px var(--font-ui);
    letter-spacing: .04em;
    text-transform: uppercase;
    white-space: nowrap;
}
.visible-status { color: #b8c995; border-color: #58623f; background: rgba(88,98,63,.12); }
.hidden-status { color: #e0a98d; border-color: var(--accent-deep); background: rgba(139,74,43,.12); }
.pending-status { color: var(--gold); border-color: #6f5e2e; background: rgba(201,168,76,.08); }

.detail-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 8px;
}

.detail-meta {
    font-family: var(--font-ui);
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.detail-meta strong { color: var(--text); font-weight: 600; }

.detail-description {
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    max-width: 60ch;
    margin-bottom: 32px;
}

.detail-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn {
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 600;
    padding: 12px 22px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background .15s, transform .1s, border-color .15s;
}
.btn:active { transform: scale(.98); }

.btn-primary { background: var(--accent); color: #1C1712; }
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-danger { background: transparent; color: #e9a18f; border-color: #75483e; }
.btn-danger:hover { border-color: #b86b58; color: #ffc0af; }
.favorite-detail.active { color: var(--accent-hover); border-color: var(--accent); }

.btn[disabled],
.btn[aria-disabled="true"] { opacity: .4; cursor: not-allowed; pointer-events: none; }

.state-message {
    font-family: var(--font-ui);
    font-size: 14px;
    color: var(--text-muted);
    padding: 60px 0;
    text-align: center;
}

/* ---------- Leitor embutido (PDF) ---------- */
.reader-overlay {
    position: fixed; inset: 0;
    background: rgba(10,8,6,0.75);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 24px;
}
.reader-overlay.show { display: flex; }

.reader-window {
    width: 100%;
    max-width: 920px;
    height: 88vh;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.reader-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    font-family: var(--font-ui);
    font-size: 13px;
    color: var(--text-muted);
}
.reader-topbar strong { color: var(--text); font-weight: 600; }

.reader-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.reader-nav-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    min-height: 30px;
    padding: 0 10px;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 12px;
}
.reader-nav-btn:hover { border-color: var(--accent); color: var(--accent); }

.reader-close-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 30px; height: 30px;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: border-color .15s, color .15s;
}
.reader-close-btn:hover { border-color: var(--accent); color: var(--accent); }

.reader-frame { flex: 1; width: 100%; border: none; background: #2b2b2b; }
.reader-epub { flex: 1; min-height: 0; background: #f3ede3; }
.reader-open { overflow: hidden; }
[hidden] { display: none !important; }

/* =========================================================
   Painel do acervo (admin.html)
   ========================================================= */

.admin-page {
    max-width: 1080px;
    margin: 0 auto;
    padding: 48px 40px 80px;
}

.admin-heading {
    margin-bottom: 28px;
}
.admin-heading .detail-title { margin: 0 0 8px; }
.admin-heading p {
    margin: 0;
    max-width: 62ch;
    color: var(--text-muted);
}

#adminWorkspace {
    display: grid;
    gap: 26px;
}
#adminWorkspace[hidden] { display: none; }

.admin-panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}

.admin-panel h2 {
    margin: 0 0 6px;
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
}

.panel-title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

.panel-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.eyebrow {
    display: block;
    margin-bottom: 5px;
    color: var(--accent);
    font: 600 10px var(--font-ui);
    letter-spacing: .08em;
    text-transform: uppercase;
}

.form-help {
    margin: 0;
    color: var(--text-dim);
    font-family: var(--font-ui);
    font-size: 12px;
}

.admin-form {
    display: grid;
    gap: 20px;
    margin-top: 22px;
}

.form-grid,
.file-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}
.file-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.admin-form label {
    display: grid;
    gap: 7px;
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 12.5px;
    font-weight: 500;
}

.admin-form input[type="text"],
.admin-form input[type="email"],
.admin-form input[type="password"],
.admin-form textarea {
    width: 100%;
    padding: 11px 13px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font: 14px var(--font-ui);
    outline: none;
}
.admin-form small { color: var(--text-dim); font-weight: 400; }
.admin-form textarea { resize: vertical; line-height: 1.5; }
.admin-form input:focus,
.admin-form textarea:focus { border-color: var(--accent); }

.file-field {
    align-content: start;
    padding: 14px;
    border: 1px dashed var(--border);
    background: var(--bg-alt);
}
.file-field strong { color: var(--accent); font-weight: 500; }
.file-field input { max-width: 100%; color: var(--text-muted); font-size: 11px; }
.file-field small { color: var(--text-dim); font-weight: 400; line-height: 1.4; }

.rights-check {
    grid-template-columns: auto 1fr !important;
    align-items: start;
    line-height: 1.45;
    font-weight: 400 !important;
}
.rights-check input { margin-top: 3px; accent-color: var(--accent); }

.visibility-check {
    grid-template-columns: auto 1fr !important;
    align-items: start;
    padding: 14px;
    border: 1px solid var(--border);
    background: rgba(28,23,18,.28);
}
.visibility-check input { margin-top: 4px; accent-color: var(--accent); }
.visibility-check span { display: grid; gap: 3px; }
.visibility-check strong { color: var(--text); font-size: 13px; }

.current-files {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 16px;
    padding: 13px 15px;
    border-left: 2px solid var(--accent-deep);
    background: rgba(201,122,61,.06);
    color: var(--text-muted);
    font: 12px var(--font-ui);
}
.current-files strong { color: var(--text); }
.current-files a { color: var(--accent); }
.current-files a:hover { color: var(--accent-hover); }

.submit-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.btn-small { padding: 8px 14px; font-size: 12px; }
.upload-status,
.form-message {
    margin: 0;
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 12px;
}
.upload-status.error,
.form-message.error { color: #e9a18f; }
.upload-status.success,
.form-message.success { color: #b8c995; }

.success-card {
    margin-top: 22px;
    padding: 16px 18px;
    border: 1px solid var(--accent-deep);
    background: rgba(201,122,61,0.08);
    font-family: var(--font-ui);
    font-size: 13px;
}
.success-card strong { display: block; margin-bottom: 5px; }
.success-card a { color: var(--accent); }

/* ---------- Conta, sugestões e gestão ---------- */
.account-page,
.suggestion-page {
    max-width: 940px;
    min-height: calc(100vh - 190px);
    margin: 0 auto;
    padding: 48px 40px 80px;
}

.page-heading { margin-bottom: 28px; }
.page-heading .detail-title { margin: 0 0 8px; }
.page-heading p {
    margin: 0;
    max-width: 62ch;
    color: var(--text-muted);
}

.account-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
}
.account-summary { max-width: 720px; }
.account-summary > p,
.access-denied > p { color: var(--text-muted); margin: 8px 0 22px; }
.suggestion-panel { max-width: 820px; }
.optional-label { color: var(--text-dim); font-weight: 400; }

.admin-list-panel { scroll-margin-top: 20px; }
.admin-items { display: grid; gap: 12px; }
.admin-item {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 16px;
    padding: 14px;
    border: 1px solid var(--border);
    background: rgba(28,23,18,.32);
}
.admin-item-cover {
    width: 64px;
    aspect-ratio: 2 / 3;
    overflow: hidden;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    background: var(--bg-alt);
    color: var(--text-dim);
    font: 9px var(--font-ui);
    text-align: center;
}
.admin-item-cover img { width: 100%; height: 100%; object-fit: cover; }
.admin-item-content { min-width: 0; }
.admin-item-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
}
.admin-item h3,
.suggestion-item h3 {
    margin: 0;
    color: var(--text);
    font: 500 17px var(--font-display);
}
.admin-item p,
.suggestion-item .admin-item-heading p {
    margin: 3px 0 0;
    color: var(--text-dim);
    font: 11px var(--font-ui);
}
.admin-item-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.suggestion-item {
    padding: 16px;
    border: 1px solid var(--border);
    background: rgba(28,23,18,.32);
}
.suggestion-item.reviewed { opacity: .72; }
.suggestion-message {
    margin: 13px 0 0;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-line;
}
.state-message.compact { padding: 18px 0; }

/* ---------- Responsivo ---------- */
@media (max-width: 760px) {
    .site-header { padding: 20px; }
    .site-header { align-items: flex-start; }
    .header-nav { gap: 12px 18px; }
    .wrap { padding: 0 20px 60px; }
    .book-detail { grid-template-columns: 1fr; }
    .detail-cover { max-width: 220px; }
    .book-page { padding: 32px 20px 60px; }
    .admin-page { padding: 32px 20px 60px; }
    .admin-panel { padding: 20px; }
    .account-page,
    .suggestion-page { padding: 32px 20px 60px; }
    .account-grid { grid-template-columns: 1fr; }
    .form-grid,
    .file-grid { grid-template-columns: 1fr; }
    .admin-item-heading { flex-direction: column; gap: 8px; }
    .panel-title-row { align-items: flex-start; }
    .reader-overlay { padding: 0; }
    .reader-window { height: 100vh; border: 0; }
    .reader-topbar { align-items: flex-start; gap: 12px; }
    .reader-controls { flex-wrap: wrap; justify-content: flex-end; }
}

@media (max-width: 480px) {
    .brand-name { font-size: 30px; }
    .hero-title { font-size: 24px; }
    .header-nav { font-size: 12px; }
    .admin-item { grid-template-columns: 50px 1fr; gap: 12px; padding: 12px; }
    .admin-item-cover { width: 50px; }
    .panel-title-row { flex-direction: column; }
    .panel-actions { justify-content: flex-start; }
}

/* ---------- Acessibilidade: reduz movimento se o usuário pedir ---------- */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}