.book-search-wrapper {
    position: sticky;
    top: 52px;
    z-index: 1020;
    background-color: #fff;
    padding: 0.75rem 0;
    margin: -0.75rem 0 0.25rem;
    transition: top 300ms ease;
}

.top-nav-hidden .book-search-wrapper {
    top: 0;
}

.book-search-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.book-search-icon {
    position: absolute;
    left: 0.85rem;
    width: 1.15rem;
    height: 1.15rem;
    color: #868e96;
    pointer-events: none;
}

.book-search-input {
    width: 100%;
    padding: 0.7rem 2.5rem 0.7rem 2.6rem;
    font-size: 0.95rem;
    border: 1px solid #dee2e6;
    border-radius: 10px;
    background-color: #f8f9fa;
    outline: none;
    transition: border-color 0.2s, background-color 0.2s;
}

.book-search-input::-webkit-search-cancel-button {
    -webkit-appearance: none;
    appearance: none;
    display: none;
}

.book-search-input:focus {
    border-color: #91a7ff;
    background-color: #fff;
}

.book-search-input::placeholder {
    color: #adb5bd;
}

.book-search-clear {
    position: absolute;
    right: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: #dee2e6;
    color: #495057;
    cursor: pointer;
    transition: background-color 0.2s;
}

.book-search-clear svg {
    width: 1rem;
    height: 1rem;
}

@media (hover: hover) and (pointer: fine) {
    .book-search-clear:hover {
        background-color: #ced4da;
    }
}

.book-search-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: #868e96;
    font-size: 0.95rem;
}