/* ============================================
   Bibliotheca — Dr. Enok Ferreira de Souza
   Paleta inspirada na Bibliomation:
   Navy, Teal, Lavanda, Dourado, Bege
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;0,700;1,400&family=Inter:wght@300;400;500;600&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --navy:         #1B3A6B;
    --navy-light:   #2B4F8A;
    --teal:         #2A8E91;
    --teal-light:   #3AAFB3;
    --teal-pale:    #7DD4D8;
    --teal-bg:      #E6F5F6;
    --lavanda:      #7B82B8;
    --lavanda-light:#A8AED4;
    --lavanda-bg:   #ECEDF8;
    --dourado:      #C9A96E;
    --dourado-brilho:#D4AF37;
    --dourado-suave:#E8D5A8;
    --bege-claro:   #FAF8F5;
    --bege-medio:   #EDE8E0;
    --cinza:        #6B7B8D;
    --cinza-claro:  #A0AEB8;
    --branco:       #FFFFFF;
    --texto:        #1B3A6B;
    --texto-suave:  #4A5C73;
    --sombra:       rgba(27, 58, 107, 0.07);
    --sombra-forte: rgba(27, 58, 107, 0.14);
    --radius:       12px;
    --radius-sm:    8px;
    --transicao:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bege-claro);
    color: var(--texto);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Navbar ── */
.navbar {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 40%, var(--teal) 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 3px 16px var(--sombra-forte);
}

.navbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.logo { display: flex; align-items: center; gap: 0.85rem; text-decoration: none; }

.logo img {
    height: 56px;
    width: auto;
    filter: drop-shadow(0 1px 3px rgba(0,0,0,0.15));
}

.logo-fallback {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--branco);
    line-height: 1.1;
}

.logo-title span { color: var(--teal-pale); }

.logo-sub {
    font-size: 0.62rem;
    color: rgba(255,255,255,0.6);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-actions { display: flex; align-items: center; gap: 0.6rem; }

/* ── Botões ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1.15rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transicao);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--dourado), var(--dourado-brilho));
    color: var(--branco);
    box-shadow: 0 2px 8px rgba(201, 169, 110, 0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(201, 169, 110, 0.5); }

.btn-secondary {
    background: rgba(255,255,255,0.12);
    color: var(--branco);
    border: 1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover { background: rgba(255,255,255,0.22); }

.btn-teal {
    background: linear-gradient(135deg, var(--teal), var(--teal-light));
    color: var(--branco);
    box-shadow: 0 2px 8px rgba(42, 142, 145, 0.3);
}
.btn-teal:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(42, 142, 145, 0.4); }

.btn-navy {
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
    color: var(--branco);
}
.btn-navy:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(27, 58, 107, 0.35); }

.btn-lavanda {
    background: linear-gradient(135deg, var(--lavanda), var(--lavanda-light));
    color: var(--branco);
}
.btn-lavanda:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(123, 130, 184, 0.4); }

.btn-danger { background: #D9534F; color: var(--branco); }
.btn-danger:hover { background: #C9302C; transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--bege-medio);
    color: var(--texto-suave);
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

.btn-print {
    background: linear-gradient(135deg, #5D6ABF, #7B82B8);
    color: var(--branco);
}
.btn-print:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(123, 130, 184, 0.4); }

.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.78rem; }
.btn-lg { padding: 0.7rem 1.6rem; font-size: 0.95rem; }

/* ── Hero ── */
.hero {
    background: linear-gradient(170deg, var(--navy) 0%, var(--navy-light) 35%, var(--teal) 100%);
    padding: 2.5rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 500px 350px at 25% 50%, rgba(42, 142, 145, 0.15), transparent),
        radial-gradient(ellipse 400px 300px at 75% 40%, rgba(123, 130, 184, 0.12), transparent);
    pointer-events: none;
}

.hero-inner {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.hero-text h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.4rem;
    font-weight: 400;
    color: rgba(255,255,255,0.85);
    font-style: italic;
    margin-bottom: 0.2rem;
}

.hero-text p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.5);
}

.stats-grid {
    display: flex;
    gap: 0.85rem;
    flex-wrap: wrap;
}

.stat-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius);
    padding: 1rem 1.5rem;
    text-align: center;
    min-width: 120px;
    transition: all var(--transicao);
}
.stat-card:hover { background: rgba(255,255,255,0.18); transform: translateY(-2px); }

.stat-num {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--dourado-suave);
    line-height: 1;
}

.stat-label {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-top: 0.2rem;
}

/* ── Main ── */
.main { max-width: 1400px; margin: 0 auto; padding: 1.75rem 2rem; }

/* ── Search ── */
.search-bar {
    background: var(--branco);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    display: flex;
    gap: 0.65rem;
    align-items: center;
    box-shadow: 0 2px 12px var(--sombra);
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
    border: 1px solid var(--bege-medio);
}

.search-bar input[type="text"] {
    flex: 1;
    min-width: 180px;
    border: 1.5px solid var(--bege-medio);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.9rem 0.6rem 2.4rem;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    color: var(--texto);
    background: var(--bege-claro) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23A0AEB8' viewBox='0 0 24 24'%3E%3Cpath d='M15.5 14h-.79l-.28-.27A6.471 6.471 0 0 0 16 9.5 6.5 6.5 0 1 0 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z'/%3E%3C/svg%3E") no-repeat 0.7rem center;
    transition: all var(--transicao);
}
.search-bar input[type="text"]:focus { outline: none; border-color: var(--teal-light); box-shadow: 0 0 0 3px rgba(42,142,145,0.1); }

.search-bar select {
    border: 1.5px solid var(--bege-medio);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.9rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    color: var(--texto-suave);
    background: var(--bege-claro);
    cursor: pointer;
}
.search-bar select:focus { outline: none; border-color: var(--teal-light); }

/* ── Books Grid ── */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

.book-card {
    background: var(--branco);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 2px 10px var(--sombra);
    border: 1px solid var(--bege-medio);
    transition: all var(--transicao);
    display: flex;
    flex-direction: column;
    position: relative;
}
.book-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px var(--sombra-forte);
    border-color: var(--teal-pale);
}

.book-card-id {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    background: rgba(27, 58, 107, 0.85);
    color: var(--dourado-suave);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 20px;
    z-index: 2;
}

.book-cover {
    width: 100%;
    height: 220px;
    background: linear-gradient(145deg, var(--teal-bg), var(--bege-medio));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.book-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.book-card:hover .book-cover img { transform: scale(1.04); }

.book-cover .no-cover {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    color: var(--cinza-claro);
}
.book-cover .no-cover svg { width: 42px; height: 42px; opacity: 0.45; }
.book-cover .no-cover span { font-size: 0.72rem; font-style: italic; }

.book-cover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, var(--branco), transparent);
}

.book-info { padding: 1.1rem 1.2rem 1rem; flex: 1; display: flex; flex-direction: column; }

.book-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy);
    line-height: 1.25;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-author { font-size: 0.82rem; color: var(--teal); font-weight: 500; margin-bottom: 0.5rem; }

.book-meta { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.6rem; flex: 1; }

.book-tag { font-size: 0.68rem; padding: 0.18rem 0.55rem; border-radius: 20px; font-weight: 500; }
.tag-editora { background: var(--lavanda-bg); color: var(--lavanda); }
.tag-idioma { background: var(--teal-bg); color: var(--teal); }
.tag-ano { background: rgba(201,169,110,0.15); color: var(--dourado); }
.tag-isbn { background: #f0f2f5; color: var(--cinza); }
.tag-paginas { background: rgba(27,58,107,0.08); color: var(--navy-light); }

.book-actions {
    display: flex;
    gap: 0.4rem;
    padding-top: 0.65rem;
    border-top: 1px solid var(--bege-medio);
}

.book-actions .btn { flex: 1; justify-content: center; font-size: 0.75rem; padding: 0.4rem; }

/* ── Empty state ── */
.empty-state { grid-column: 1 / -1; text-align: center; padding: 4rem 2rem; }
.empty-state svg { width: 72px; height: 72px; color: var(--bege-medio); margin-bottom: 0.75rem; }
.empty-state h3 { font-family: 'Cormorant Garamond', serif; font-size: 1.4rem; color: var(--cinza); margin-bottom: 0.3rem; }
.empty-state p { color: var(--cinza-claro); font-size: 0.85rem; }

/* ── Modal ── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(27, 58, 107, 0.4);
    backdrop-filter: blur(5px);
    z-index: 2000;
    align-items: flex-start;
    justify-content: center;
    padding: 2rem;
    overflow-y: auto;
}
.modal-overlay.active { display: flex; }

.modal {
    background: var(--branco);
    border-radius: 14px;
    width: 100%;
    max-width: 780px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    animation: modalIn 0.3s ease;
    margin: 2rem 0;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.75rem;
    border-bottom: 1px solid var(--bege-medio);
    background: linear-gradient(135deg, var(--navy), var(--teal));
    border-radius: 14px 14px 0 0;
}

.modal-header h2 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--branco);
}

.modal-close {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,0.12);
    color: var(--branco);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transicao);
}
.modal-close:hover { background: rgba(255,255,255,0.25); transform: rotate(90deg); }

.modal-body { padding: 1.75rem; }

/* ── Form ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

.form-group { display: flex; flex-direction: column; gap: 0.3rem; }
.form-group.full-width { grid-column: 1 / -1; }

.form-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--texto-suave);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
    border: 1.5px solid var(--bege-medio);
    border-radius: var(--radius-sm);
    padding: 0.65rem 0.85rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.88rem;
    color: var(--texto);
    background: var(--bege-claro);
    transition: all var(--transicao);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal-light);
    box-shadow: 0 0 0 3px rgba(42,142,145,0.1);
    background: var(--branco);
}

.form-group textarea { resize: vertical; min-height: 70px; }

.capa-upload-area {
    grid-column: 1 / -1;
    display: flex;
    gap: 1.25rem;
    padding: 1.1rem;
    background: linear-gradient(135deg, var(--teal-bg), var(--lavanda-bg));
    border-radius: var(--radius);
    border: 1.5px dashed var(--teal-pale);
    transition: border-color var(--transicao);
}
.capa-upload-area:hover { border-color: var(--teal); }

.capa-preview {
    width: 100px;
    height: 140px;
    border-radius: var(--radius-sm);
    background: var(--bege-medio);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    border: 2px solid var(--branco);
    box-shadow: 0 2px 8px var(--sombra);
}

.capa-preview img { width: 100%; height: 100%; object-fit: cover; }
.capa-preview .placeholder { color: var(--cinza-claro); font-size: 0.72rem; text-align: center; padding: 0.4rem; }

.capa-controls { flex: 1; display: flex; flex-direction: column; gap: 0.4rem; }
.capa-controls label { font-size: 0.75rem; font-weight: 600; color: var(--texto-suave); text-transform: uppercase; letter-spacing: 0.04em; }
.capa-controls .hint { font-size: 0.72rem; color: var(--cinza-claro); font-style: italic; }

.form-section {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin: 0.35rem 0;
}

.form-section h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--navy);
    white-space: nowrap;
}

.form-section::after { content: ''; flex: 1; height: 1px; background: linear-gradient(to right, var(--teal-pale), transparent); }

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: flex-end;
    gap: 0.65rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--bege-medio);
    margin-top: 0.35rem;
}

/* ── Detail modal ── */
.detail-layout { display: grid; grid-template-columns: 200px 1fr; gap: 1.75rem; }

.detail-cover {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 18px var(--sombra-forte);
    border: 3px solid var(--teal-pale);
    aspect-ratio: 2/3;
    background: var(--bege-medio);
    display: flex;
    align-items: center;
    justify-content: center;
}
.detail-cover img { width: 100%; height: 100%; object-fit: cover; }

.detail-info h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.65rem;
    color: var(--navy);
    margin-bottom: 0.85rem;
    line-height: 1.2;
}

.detail-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }

.detail-field { padding: 0.5rem 0; }
.detail-field .label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--lavanda); font-weight: 600; }
.detail-field .value { font-size: 0.92rem; color: var(--texto); }

.detail-sumario {
    grid-column: 1 / -1;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--bege-medio);
}
.detail-sumario .label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--lavanda); font-weight: 600; margin-bottom: 0.3rem; }
.detail-sumario pre { font-family: 'Inter', sans-serif; font-size: 0.88rem; color: var(--texto-suave); line-height: 1.7; white-space: pre-wrap; }

.detail-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 0.65rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bege-medio);
    margin-top: 0.5rem;
}

/* ── Toast ── */
.toast-container { position: fixed; top: 1.25rem; right: 1.25rem; z-index: 5000; display: flex; flex-direction: column; gap: 0.4rem; }

.toast {
    background: var(--branco);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1.25rem;
    box-shadow: 0 8px 28px rgba(0,0,0,0.14);
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.88rem;
    animation: toastIn 0.35s ease;
    border-left: 4px solid var(--teal);
    max-width: 380px;
}
.toast.sucesso { border-left-color: #4CAF50; }
.toast.erro { border-left-color: #D9534F; }
.toast.saindo { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn { from { opacity: 0; transform: translateX(80px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toastOut { to { opacity: 0; transform: translateX(80px); } }

/* ── Confirm ── */
.confirm-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(27, 58, 107, 0.45);
    backdrop-filter: blur(4px);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}
.confirm-overlay.active { display: flex; }

.confirm-box {
    background: var(--branco);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    max-width: 380px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    animation: modalIn 0.3s ease;
}
.confirm-box h3 { font-family: 'Cormorant Garamond', serif; font-size: 1.25rem; color: var(--navy); margin-bottom: 0.4rem; }
.confirm-box p { color: var(--cinza); font-size: 0.88rem; margin-bottom: 1.25rem; }
.confirm-box .btn-group { display: flex; gap: 0.65rem; justify-content: center; }

/* ── Footer ── */
.footer {
    text-align: center;
    padding: 1.75rem 2rem;
    color: var(--cinza-claro);
    font-size: 0.78rem;
    border-top: 1px solid var(--bege-medio);
    margin-top: 2.5rem;
}

/* ── Loading ── */
.loading-spinner { grid-column: 1 / -1; text-align: center; padding: 3rem; }
.spinner { width: 36px; height: 36px; border: 3px solid var(--bege-medio); border-top-color: var(--teal); border-radius: 50%; animation: spin 0.8s linear infinite; margin: 0 auto 0.75rem; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Responsive ── */
@media (max-width: 768px) {
    .navbar-inner { padding: 0.6rem 1rem; }
    .logo img { height: 42px; }
    .logo-title { font-size: 1.3rem; }
    .hero { padding: 1.75rem 1rem 1.5rem; }
    .hero-inner { flex-direction: column; align-items: flex-start; }
    .stats-grid { width: 100%; }
    .stat-card { flex: 1; min-width: 100px; }
    .main { padding: 1.25rem 1rem; }
    .search-bar { flex-direction: column; padding: 0.85rem; }
    .search-bar input[type="text"], .search-bar select { width: 100%; }
    .books-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
    .form-grid { grid-template-columns: 1fr; }
    .modal-body { padding: 1.25rem; }
    .detail-layout { grid-template-columns: 1fr; }
    .detail-cover { max-width: 180px; margin: 0 auto; }
    .detail-fields { grid-template-columns: 1fr; }
    .capa-upload-area { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
    .books-grid { grid-template-columns: 1fr; }
    .stat-num { font-size: 1.7rem; }
}