:root {
    --bg: #d9ceac;               /* Fondo principal */
    --card: #c3ba9e;             /* Tarjetas con tono crema claro */
    --muted: #7a5c2e;            /* Texto secundario, marrón suave */
    --accent: #8c3d00;           /* Color de acento, terracota profundo */
    --shadow: rgba(0, 0, 0, 0.08); /* Sombra más visible sobre fondo cálido */
    --glass: rgba(255, 255, 255, 0.6); /* Transparencia sobre dorado */
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
    font-family: 'Dancing Script', cursive;
    font-size: 1.2rem;
    background: var(--bg);
    color: #222;
    margin: 0;
}

.site-header {
    background: var(--card);
    border-bottom: 1px solid var(--card);
}

.site-title {
    font-family: 'Bebas Neue', sans-serif;
    letter-spacing: 1px;
}

.book-card {
    background: var(--card);
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--card);
    transition: transform 400ms cubic-bezier(.2,.9,.3,1), box-shadow 400ms ease;
    transform-origin: center;
    animation: appearUp .45s ease both;
}

@keyframes appearUp {
    from { opacity: 0; transform: translateY(14px) scale(.995); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.book-card:hover {
    transform: translateY(-12px) rotate(-0.6deg) scale(1.03);
    box-shadow: 0 18px 40px var(--shadow), 0 0 24px rgba(43,111,218,0.06);
}

.pdf-thumb {
    position: relative;
    height: 290px;
    overflow: hidden;
    display: block;
    background: linear-gradient(180deg, #fafafa 0%, #fff 100%);
    border-bottom: 1px solid var(--card);
    cursor: pointer;
}

.pdf-thumb .img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 650ms cubic-bezier(.2,.9,.3,1), filter 350ms ease;
    transform-origin: center;
    will-change: transform;
    display: block;
}

.book-card:hover .img-cover {
    transform: scale(1.13) rotate(1deg);
    filter: saturate(1.03) contrast(1.02);
}

.pdf-thumb .overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 360ms ease, transform 360ms ease;
    background: linear-gradient(180deg, rgba(255,255,255,0.0) 0%, rgba(245,245,246,0.72) 100%);
    backdrop-filter: blur(3px);
}

.book-card:hover .overlay { opacity: 1; }

.pdf-thumb .overlay i {
    font-size: 2.4rem;
    color: #111;
    background: transparent;
    transform: scale(.9);
    transition: transform 240ms ease;
    pointer-events: none;
}

.book-card:hover .overlay i {
    transform: scale(1.04) translateY(-2px);
}

.card-body {
    padding: 1rem;
    text-align: center;
}

.book-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    color: #222;
}

.book-pages {
    font-size: 0.95rem;
    color: #666;
}

@media (max-width: 576px) {
    .pdf-thumb { height: 200px; }
    .book-card:hover { transform: translateY(-6px) scale(1.02); }
}

.pdf-thumb:focus {
    outline: 3px solid rgba(43,111,218,0.12);
    outline-offset: 4px;
}

#inMemoriamModal img {
    object-fit: cover;
    border-right: 1px solid #f0f0f3;
}

.modal-content {
    border-radius: 16px;
}

.modal-body p {
    line-height: 1.6;
}

.pagination .page-item .page-link {
    background: #fff;
    border: 1px solid #e6e6eb;
    color: #333;
    font-weight: 500;
    padding: .45rem .85rem;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(35,41,47,0.04);
    transition: all 220ms ease;
}

.pagination .page-item .page-link:hover {
    background: #f8f9fb;
    color: #111;
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(35,41,47,0.08);
}

.pagination .page-item.active .page-link {
    background: #f2f2f5;
    border-color: #d8d8de;
    color: #111;
    font-weight: 600;
    box-shadow: inset 0 2px 6px rgba(0,0,0,0.08);
}

.pagination .page-item.disabled .page-link {
    opacity: .5;
    cursor: not-allowed;
    background: #f9f9fb;
    color: #aaa;
    border: 1px solid #e9e9ef;
}