/* ═══════════════════════════════════════════════════════════
   FlipBook Pro – Frontend Gallery & Card Styles v2.0
   ═══════════════════════════════════════════════════════════ */

/* ── Variables ── */
.fbp-gallery {
    --fbp-p:      #6C3FEF;
    --fbp-p2:     #5830d8;
    --fbp-accent: #a855f7;
    --fbp-green:  #22c55e;
    --fbp-border: #e5e7eb;
    --fbp-bg:     #f8f9fb;
    --fbp-text:   #111827;
    --fbp-muted:  #6b7280;
    --fbp-rad:    12px;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Filter bar ── */
.fbp-filter {
    background: var(--fbp-bg);
    border: 1px solid var(--fbp-border);
    border-radius: var(--fbp-rad);
    padding: 16px 18px;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Search */
.fbp-search-box {
    position: relative;
    max-width: 400px;
}
.fbp-search-icon {
    position: absolute;
    left: 12px; top: 50%;
    transform: translateY(-50%);
    width: 17px; height: 17px;
    color: var(--fbp-muted);
    pointer-events: none;
}
.fbp-search-input {
    width: 100%;
    box-sizing: border-box;
    padding: 9px 12px 9px 36px;
    border: 1.5px solid var(--fbp-border);
    border-radius: 8px;
    font-size: .9rem;
    outline: none;
    background: #fff;
    color: var(--fbp-text);
    transition: border-color .15s;
}
.fbp-search-input:focus {
    border-color: var(--fbp-p);
    box-shadow: 0 0 0 3px rgba(108,63,239,.1);
}

/* Category tabs */
.fbp-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}
.fbp-cat {
    padding: 5px 14px;
    border-radius: 20px;
    border: 1.5px solid var(--fbp-border);
    background: #fff;
    cursor: pointer;
    font-size: .82rem;
    font-weight: 600;
    color: var(--fbp-text);
    transition: all .18s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.fbp-cat:hover { border-color: var(--fbp-p); color: var(--fbp-p); }
.fbp-cat.active { background: var(--fbp-p); border-color: var(--fbp-p); color: #fff; }
.fbp-cat-n {
    background: rgba(0,0,0,.12);
    border-radius: 10px;
    padding: 1px 6px;
    font-size: .72rem;
    font-weight: 700;
}
.fbp-cat.active .fbp-cat-n { background: rgba(255,255,255,.25); }

/* Count bar */
.fbp-count {
    font-size: .82rem;
    color: var(--fbp-muted);
    margin-bottom: 14px;
}
.fbp-count-n { font-weight: 700; color: var(--fbp-text); }

/* ── Grid ── */
.fbp-grid {
    display: grid;
    gap: 20px;
}
.fbp-cols-1 { grid-template-columns: 1fr; }
.fbp-cols-2 { grid-template-columns: repeat(2, 1fr); }
.fbp-cols-3 { grid-template-columns: repeat(3, 1fr); }
.fbp-cols-4 { grid-template-columns: repeat(4, 1fr); }
.fbp-cols-5 { grid-template-columns: repeat(5, 1fr); }
.fbp-cols-6 { grid-template-columns: repeat(6, 1fr); }

/* ── Book Card ── */
.fbp-card {
    background: #fff;
    border: 1px solid var(--fbp-border);
    border-radius: var(--fbp-rad);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,.06);
    transition: transform .22s, box-shadow .22s, border-color .22s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    outline: none;
}
.fbp-card:hover,
.fbp-card:focus {
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(108,63,239,.18);
    border-color: #c4b5fd;
}
.fbp-card:focus-visible { box-shadow: 0 0 0 3px var(--fbp-p); }

/* Thumbnail */
.fbp-card-thumb {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    background: linear-gradient(135deg, #f0eeff, #ede9fe);
    flex-shrink: 0;
}
.fbp-card-img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .35s;
}
.fbp-card:hover .fbp-card-img { transform: scale(1.05); }
.fbp-card-noimg {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 4rem;
}

/* Badge */
.fbp-card-badge {
    position: absolute;
    top: 10px; left: 10px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .71rem;
    font-weight: 700;
    letter-spacing: .02em;
}
.fbp-card-badge.locked { background: rgba(0,0,0,.7); color: #fff; }
.fbp-card-badge.free   { background: var(--fbp-green); color: #fff; }

/* Body */
.fbp-card-body {
    padding: 14px 16px 16px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 6px;
}
.fbp-card-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.fbp-card-tag {
    background: #ede9fe;
    color: var(--fbp-p);
    border-radius: 4px;
    padding: 2px 8px;
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .02em;
}
.fbp-card-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: var(--fbp-text);
    line-height: 1.3;
}
.fbp-card-desc {
    margin: 0;
    font-size: .8rem;
    color: var(--fbp-muted);
    line-height: 1.5;
}
.fbp-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 8px;
}
.fbp-card-price { font-size: 1.1rem; font-weight: 800; color: var(--fbp-p); }
.fbp-free       { color: var(--fbp-green); font-weight: 700; }
.fbp-card-views { font-size: .76rem; color: #9ca3af; }

/* Actions row */
.fbp-card-actions {
    display: flex;
    gap: 7px;
    margin-top: 10px;
    flex-wrap: wrap;
}
.fbp-open-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 12px;
    background: var(--fbp-p);
    color: #fff;
    border-radius: 7px;
    font-size: .84rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .18s;
    user-select: none;
}
.fbp-open-btn:hover { background: var(--fbp-p2); }
.fbp-qr-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 12px;
    border: 1.5px solid var(--fbp-p);
    color: var(--fbp-p);
    border-radius: 7px;
    font-size: .84rem;
    font-weight: 600;
    cursor: pointer;
    background: transparent;
    transition: all .18s;
    user-select: none;
    white-space: nowrap;
}
.fbp-qr-btn:hover { background: var(--fbp-p); color: #fff; }

/* ── Single book embed ── */
.fbp-single-wrap {
    margin: 16px auto;
    border-radius: 10px;
    overflow: hidden;
}

/* ── Empty state ── */
.fbp-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px 20px;
    color: var(--fbp-muted);
    font-size: .95rem;
}

/* ── Loader ── */
.fbp-loader {
    display: flex;
    justify-content: center;
    padding: 40px;
}
.fbp-spinner {
    width: 36px; height: 36px;
    border: 3px solid #e5e7eb;
    border-top-color: var(--fbp-p);
    border-radius: 50%;
    animation: fbp-spin .7s linear infinite;
}
@keyframes fbp-spin { to { transform: rotate(360deg); } }

/* ── Modal ── */
.fbp-modal {
    position: fixed;
    inset: 0;
    z-index: 999990;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fbp-modal-bg {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.8);
    backdrop-filter: blur(4px);
    cursor: pointer;
}
.fbp-modal-box {
    position: relative;
    z-index: 1;
    width: 94vw;
    max-width: 1000px;
    height: 90vh;
    max-height: 90vh;
    background: #1c1c2e;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0,0,0,.6);
    display: flex;
    flex-direction: column;
}
.fbp-modal-close {
    position: absolute;
    top: 10px; right: 12px;
    z-index: 10;
    width: 32px; height: 32px;
    border-radius: 50%;
    border: none;
    background: rgba(255,255,255,.15);
    color: #fff;
    font-size: .95rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background .15s;
    backdrop-filter: blur(4px);
}
.fbp-modal-close:hover { background: rgba(255,255,255,.28); }
.fbp-modal-frame {
    width: 100%;
    flex: 1;
    border: none;
    display: block;
}

/* ── QR modal panel ── */
.fbp-qr-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    background: #1c1c2e;
    color: #fff;
    height: 100%;
}
.fbp-qr-panel img { border-radius: 10px; border: 4px solid rgba(255,255,255,.15); margin-bottom: 14px; }
.fbp-qr-panel h3  { font-size: 1.1rem; margin-bottom: 6px; }
.fbp-qr-panel p   { font-size: .83rem; color: rgba(255,255,255,.55); margin: 4px 0; }
.fbp-qr-panel a   { margin-top: 14px; }
.fbp-qr-panel .fbp-qr-link {
    font-size: .75rem;
    word-break: break-all;
    color: rgba(255,255,255,.4);
    margin-top: 8px;
    max-width: 280px;
    text-align: center;
}
.fbp-qr-panel .fbp-dl-qr {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 9px 18px;
    background: var(--fbp-p);
    color: #fff; border-radius: 7px;
    font-size: .85rem; font-weight: 600;
    text-decoration: none;
    transition: background .15s;
}
.fbp-qr-panel .fbp-dl-qr:hover { background: var(--fbp-p2); color: #fff; }

/* ── Responsive ── */
@media (max-width: 960px) {
    .fbp-cols-4, .fbp-cols-5, .fbp-cols-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 660px) {
    .fbp-cols-3, .fbp-cols-4, .fbp-cols-5, .fbp-cols-6 { grid-template-columns: repeat(2, 1fr); }
    .fbp-modal-box { width: 100%; height: 100%; max-height: 100vh; border-radius: 0; }
}
@media (max-width: 400px) {
    .fbp-cols-2, .fbp-cols-3 { grid-template-columns: 1fr; }
    .fbp-filter { padding: 12px; }
}
body.fbp-modal-open { overflow: hidden !important; }