/* Flipbook Stage */
.wcfb-flipbook-stage {
    position: relative;
    width: 100%;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1e1e1e;
    overflow: hidden;
}

/* 1-100% Loader Box */
.wcfb-loader-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 16px 28px;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 9999;
}

.wcfb-spinner-ring {
    width: 22px;
    height: 22px;
    border: 3px solid #e2e8f0;
    border-top: 3px solid #2563eb;
    border-radius: 50%;
    animation: wcfbSpin 0.7s linear infinite;
}

.wcfb-loader-text {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    letter-spacing: 0.2px;
}

@keyframes wcfbSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =========================================================================
   Frontend Catalog Grid Layout
   ========================================================================= */
.wcfb-catalog-grid,
.wc-flipbook-grid,
.flipbook-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
    width: 100%;
    box-sizing: border-box;
}

/* =========================================================================
   Shortcode Card Frame: Zero Internal Padding & Stretch Alignment
   Eliminates all surrounding white gaps for Portrait and Landscape covers
   ========================================================================= */
.wcfb-card,
.wcfb-catalog-card,
.wc-flipbook-card,
.flipbook-card {
    position: relative;
    background: #ffffff;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px !important;
    overflow: visible !important; /* Preserves 3D rotation corners */
    padding: 0 0 16px 0 !important; /* Zero top/left/right padding */
    margin: 0;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    box-sizing: border-box;
    transition: box-shadow 0.35s ease;
}

/* =========================================================================
   Cover Wrapper: 100% Edge-to-Edge Flush Container
   ========================================================================= */
.wcfb-card .wcfb-card-cover,
.wcfb-card-cover,
.wcfb-card-thumbnail-wrap,
.card-thumbnail-wrapper {
    position: relative;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    perspective: 1800px;
    transform-style: preserve-3d;
    display: block !important;
    box-sizing: border-box !important;
}

/* =========================================================================
   Cover Image: 100% Width Flush Stretch (Top Radius Aligned)
   ========================================================================= */
.wcfb-card .wcfb-card-cover img,
.wcfb-card-cover img,
.wcfb-card-thumbnail-wrap img,
.wcfb-card img,
.card-thumbnail-wrapper img,
.card-thumbnail {
    position: relative;
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    display: block !important;
    object-fit: cover !important;
    object-position: center top !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    border-top-left-radius: 7px !important;
    border-top-right-radius: 7px !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
    transform-origin: left center;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.4s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Authentic dFlip 3D Hover Swing Physics */
.wcfb-card:hover .wcfb-card-cover img,
.wcfb-card:hover .wcfb-card-thumbnail-wrap img,
.wcfb-card:hover img,
.wc-flipbook-card:hover img {
    perspective: 1800px;
    transform: rotateY(-18deg) scale(1.02) !important;
    box-shadow: -8px 8px 24px rgba(0, 0, 0, 0.28) !important;
}

/* Badge Display & Hover Auto-Hide */
.wcfb-card-badge,
.wcfb-badge,
.wc-flipbook-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 4;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.wcfb-card:hover .wcfb-card-badge,
.wcfb-card:hover .wcfb-badge,
.wc-flipbook-card:hover .wc-flipbook-badge {
    opacity: 0;
    transform: scale(0.85);
    pointer-events: none;
}

/* =========================================================================
   Bottom Section: Preserves 16px Internal Side Padding
   ========================================================================= */
.wcfb-card-bottom,
.wcfb-card-content,
.wcfb-card-footer,
.wc-flipbook-card-bottom {
    padding: 14px 16px 0 16px !important;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
    width: 100%;
    box-sizing: border-box;
    text-align: center;
}

.wcfb-catalog-title,
.wcfb-card-title,
.wcfb-card-bottom .wcfb-catalog-title,
.wcfb-card h3,
.wcfb-card h4 {
    margin: 0 !important;
    padding: 0 16px !important;
    font-size: 14px;
    font-weight: 700;
    color: #1e293b;
    box-sizing: border-box;
    text-align: center;
}

/* Action Buttons inside Card */
.wcfb-card button,
.wcfb-card .btn,
.wcfb-card a.button,
.wcfb-card .wcfb-btn {
    margin: 8px 16px 0 16px !important;
    width: calc(100% - 32px) !important;
    box-sizing: border-box !important;
}
/* Direct Fix for Frontend Dinex Cover White Gap */
._df_thumb_book_wrapper.ath-catalog-card,
._df_thumb_book_wrapper {
    padding: 0 !important;
    align-items: stretch !important;
}

._df_book_stage,
._df_book_cover,
._df_book_cover img {
    width: 100% !important;
    max-height: none !important;
    object-fit: cover !important;
    display: block !important;
}