/**
 * TMU Free Books Widget Styles
 * Exact match to 2-Column Free E-Book Cards
 */

.tmu-free-books-widget {
    width: 100%;
    position: relative;
}

.tmu-free-books-grid {
    display: grid;
    grid-template-columns: repeat(var(--tmu-fb-cols, 2), 1fr);
    gap: var(--tmu-fb-gap, 28px);
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
}

.tmu-free-book-card {
    background: #ffffff;
    border: 1px solid #e5e9f2;
    border-radius: var(--tmu-fb-radius, 20px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 16px rgba(15, 28, 61, 0.04);
}

.tmu-free-book-card.tmu-free-guide-trigger {
    cursor: pointer;
}

.tmu-free-book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(15, 28, 61, 0.09);
}

.tmu-free-book-stage {
    background-color: #e9edf5;
    min-height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    position: relative;
}

.tmu-free-book-cover {
    width: var(--tmu-fb-cover-w, 150px);
    height: var(--tmu-fb-cover-h, 210px);
    border-radius: var(--tmu-fb-cover-radius, 12px);
    overflow: hidden;
    position: relative;
    box-shadow: 0 12px 28px rgba(15, 28, 61, 0.22), 0 3px 8px rgba(15, 28, 61, 0.12);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    flex-shrink: 0;
    text-decoration: none;
    display: block;
}

.tmu-free-book-card:hover .tmu-free-book-cover {
    transform: scale(1.04);
}

.tmu-free-book-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: inherit;
}

.tmu-free-book-spine {
    position: absolute;
    top: 0;
    left: 0;
    width: 14px;
    height: 100%;
    background: linear-gradient(90deg, rgba(255,255,255,0.18) 0%, rgba(0,0,0,0.08) 35%, rgba(0,0,0,0.22) 75%, transparent 100%);
    pointer-events: none;
    z-index: 2;
}

.tmu-free-book-cover-vector {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 18px 14px 18px 18px;
    color: #ffffff;
    border-radius: inherit;
    position: relative;
}

.tmu-free-book-cover-tag {
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    line-height: 1.35;
    color: rgba(255, 255, 255, 0.85);
}

.tmu-free-book-cover-inner-title {
    font-size: 15px;
    font-weight: 800;
    line-height: 1.25;
    margin: 0;
    color: #ffffff;
    letter-spacing: -0.01em;
    white-space: pre-line;
}

.tmu-free-book-body {
    padding: 22px 24px 26px;
    background: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    flex: 1;
}

.tmu-free-book-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background-color: #e2f6f0;
    color: #0d6e56;
    font-size: 11.5px;
    font-weight: 700;
    border-radius: 20px;
    line-height: 1.2;
}

.tmu-free-book-title {
    font-size: 18px;
    font-weight: 800;
    color: #0f1c3d;
    line-height: 1.35;
    margin: 0;
    letter-spacing: -0.01em;
}

.tmu-free-book-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}

.tmu-free-book-title a:hover {
    color: #0e6853;
}

@media (max-width: 1024px) {
    .tmu-free-books-grid {
        grid-template-columns: repeat(var(--tmu-fb-cols-tablet, 1), 1fr);
        gap: 24px;
    }
}

@media (max-width: 767px) {
    .tmu-free-books-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .tmu-free-book-stage {
        min-height: 230px;
        padding: 24px 16px;
    }

    .tmu-free-book-body {
        padding: 18px 20px 22px;
    }

    .tmu-free-book-title {
        font-size: 16.5px;
    }
}