.ctsfw-lnb {
    --ctsfw-blue: #001846;
    --ctsfw-red: #7b1824;
    --ctsfw-cream: #f6f4ee;
    --ctsfw-ink: #1f2937;
    --ctsfw-muted: #5b6472;
    margin-block: 2.5rem;
}

.ctsfw-lnb .ctsfw-wc-heading {
    margin: 0 0 1.25rem;
    color: var(--ctsfw-blue);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    line-height: 1.1;
    text-align: left;
}

.ctsfw-lnb .ctsfw-lnb-month {
    border-top: 1px solid rgba(0, 24, 70, 0.18);
}

.ctsfw-lnb .ctsfw-lnb-month:last-child {
    border-bottom: 1px solid rgba(0, 24, 70, 0.18);
}

.ctsfw-lnb .ctsfw-lnb-month-heading {
    margin: 0;
}

.ctsfw-lnb .ctsfw-lnb-month-header {
    appearance: none;
    width: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 1rem;
    margin: 0;
    padding: 1.15rem 0;
    color: var(--ctsfw-blue);
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    cursor: pointer;
    font: inherit;
    text-align: left;
}

.ctsfw-lnb .ctsfw-lnb-month-header:hover,
.ctsfw-lnb .ctsfw-lnb-month-header:focus-visible {
    color: var(--ctsfw-red);
    background: transparent;
}

.ctsfw-lnb .ctsfw-lnb-month-header:focus-visible {
    outline: 3px solid rgba(123, 24, 36, 0.25);
    outline-offset: 3px;
}

.ctsfw-lnb .ctsfw-wc-month-title {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 700;
    line-height: 1.25;
}

.ctsfw-lnb .ctsfw-lnb-month-count {
    color: var(--ctsfw-muted);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.ctsfw-lnb .ctsfw-lnb-knob {
    position: relative;
    width: 1.85rem;
    height: 1.85rem;
    border: 1px solid currentColor;
    border-radius: 50%;
}

.ctsfw-lnb .ctsfw-lnb-knob::before,
.ctsfw-lnb .ctsfw-lnb-knob::after {
    content: "";
    position: absolute;
    inset: 50% auto auto 50%;
    width: 0.75rem;
    height: 2px;
    background: currentColor;
    transform: translate(-50%, -50%);
    transition: opacity 0.18s ease;
}

.ctsfw-lnb .ctsfw-lnb-knob::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.ctsfw-lnb [data-opened] .ctsfw-lnb-knob::after {
    opacity: 0;
}

.ctsfw-lnb [data-ctsfw-lnb-panel][hidden] {
    display: none !important;
}

.ctsfw-lnb .ctsfw-lnb-panel {
    padding: 0.35rem 0 1.5rem;
}

.ctsfw-lnb .ctsfw-lnb-book-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.ctsfw-lnb .ctsfw-lnb-book {
    position: relative;
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 1rem;
    min-width: 0;
    margin: 0;
    padding: 1rem;
    background: #fff;
    border: 1px solid rgba(0, 24, 70, 0.12);
    border-top: 4px solid var(--ctsfw-red);
    border-radius: 3px;
    box-shadow: 0 7px 20px rgba(0, 24, 70, 0.06);
}

.ctsfw-lnb .ctsfw-lnb-book-cover-link {
    display: block;
}

.ctsfw-lnb .ctsfw-lnb-book-cover {
    display: block;
    width: 92px;
    aspect-ratio: 2 / 3;
    object-fit: contain;
    margin: 0 !important;
    background: var(--ctsfw-cream);
    border: 1px solid rgba(0, 24, 70, 0.09);
    box-shadow: 0 4px 12px rgba(0, 24, 70, 0.1);
    transition: transform 0.18s ease;
}

.ctsfw-lnb .ctsfw-lnb-book-cover-link:hover .ctsfw-lnb-book-cover,
.ctsfw-lnb .ctsfw-lnb-book-cover-link:focus-visible .ctsfw-lnb-book-cover {
    transform: translateY(-2px);
}

.ctsfw-lnb .ctsfw-lnb-book-main {
    min-width: 0;
}

.ctsfw-lnb .ctsfw-lnb-book-title {
    margin: 0 0 0.3rem;
    color: var(--ctsfw-blue);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.32;
}

.ctsfw-lnb .ctsfw-lnb-book-title a {
    color: inherit;
    text-decoration: none;
}

.ctsfw-lnb .ctsfw-lnb-book-title a:hover,
.ctsfw-lnb .ctsfw-lnb-book-title a:focus-visible {
    color: var(--ctsfw-red);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.16em;
}

.ctsfw-lnb .ctsfw-lnb-book-author,
.ctsfw-lnb .ctsfw-lnb-book-publication,
.ctsfw-lnb .ctsfw-wc-call-number,
.ctsfw-lnb .ctsfw-lnb-book-summary,
.ctsfw-lnb .ctsfw-lnb-book-action {
    margin: 0;
}

.ctsfw-lnb .ctsfw-lnb-book-author {
    color: var(--ctsfw-ink);
    font-size: 0.93rem;
    line-height: 1.4;
}

.ctsfw-lnb .ctsfw-lnb-book-publication,
.ctsfw-lnb .ctsfw-wc-call-number {
    margin-top: 0.2rem;
    color: var(--ctsfw-muted);
    font-size: 0.82rem;
    line-height: 1.4;
}

.ctsfw-lnb .ctsfw-wc-call-number span {
    margin-right: 0.3rem;
    color: var(--ctsfw-blue);
    font-weight: 700;
}

.ctsfw-lnb .ctsfw-lnb-book-summary {
    margin-top: 0.6rem;
    color: #374151;
    font-size: 0.9rem;
    line-height: 1.55;
}

.ctsfw-lnb .ctsfw-lnb-book-action {
    margin-top: 0.65rem;
    font-size: 0.82rem;
    font-weight: 700;
}

.ctsfw-lnb .ctsfw-lnb-book-action a {
    color: var(--ctsfw-red);
    text-decoration: none;
}

.ctsfw-lnb .ctsfw-lnb-book-action a:hover,
.ctsfw-lnb .ctsfw-lnb-book-action a:focus-visible {
    color: var(--ctsfw-blue);
    text-decoration: underline;
}

.ctsfw-lnb .ctsfw-lnb-empty {
    padding: 1.25rem;
    color: var(--ctsfw-blue);
    background: var(--ctsfw-cream);
    border-left: 4px solid var(--ctsfw-red);
}

.ctsfw-lnb .ctsfw-lnb-empty p {
    margin: 0;
}

@media (max-width: 900px) {
    .ctsfw-lnb .ctsfw-lnb-book-list {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 520px) {
    .ctsfw-lnb .ctsfw-lnb-month-header {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .ctsfw-lnb .ctsfw-lnb-month-count {
        display: none;
    }

    .ctsfw-lnb .ctsfw-lnb-book {
        grid-template-columns: 76px minmax(0, 1fr);
        gap: 0.8rem;
        padding: 0.8rem;
    }

    .ctsfw-lnb .ctsfw-lnb-book-cover {
        width: 76px;
    }

    .ctsfw-lnb .ctsfw-lnb-book-summary {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ctsfw-lnb * {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}