:root {
    --nav-height: 90px;
}
.search-hero {
    padding: 2.5rem 0 2rem;
    text-align: center;
}

.search-hero-title {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    color: var(--gold-400);
    margin-bottom: .4rem;
}

.search-hero-sub {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 1.75rem;
}

.search-box {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 1rem 1.5rem;
    padding-left: 120px;
    background: rgba(14,22,40,.9);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    outline: none;
    transition: all .2s;
    backdrop-filter: blur(8px);
}

    .search-input:focus {
        border-color: var(--gold-500);
        box-shadow: 0 0 0 4px rgba(201,168,76,.1);
    }

.search-btn {
    position: absolute;
    left: .4rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gold-500);
    color: var(--navy-900);
    border: none;
    border-radius: var(--radius-xl);
    padding: .55rem 1.25rem;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
}

.search-btn:hover {
    background: var(--gold-400);
}

/* Filters */
.filters-panel {
    background: rgba(14,22,40,.6);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-top: 1rem;
    max-width: 900px;
    margin-right: auto;
    margin-left: auto;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px,1fr));
    gap: .75rem;
    align-items: end;
    width: 100%;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: .3rem;
}

.filter-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.filter-select, .filter-input {
    padding: .42rem .75rem;
    background: rgb(5, 28, 96);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 13px;
    outline: none;
    width: 100%;
}

.filter-select:focus, .filter-input:focus {
    border-color: var(--gold-500);
}

.filter-input::placeholder {
    color: var(--text-muted);
}

.filters-actions {
    display: flex;
    gap: .5rem;
    align-items: flex-end;
}

.advanced-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    padding: .3rem 0;
    display: flex;
    align-items: center;
    gap: .3rem;
    text-decoration: underline;
    font-family: var(--font-sans);
}

    .advanced-toggle:hover {
        color: var(--gold-400);
    }

.advanced-section {
    display: none;
}

    .advanced-section.open {
        display: grid;
    }

/* Results */
.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 14px;
    flex-wrap: wrap;
    gap: .5rem;
}

.results-count {
    color: var(--text-secondary);
}

.results-count strong {
    color: var(--gold-400);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill,minmax(100%,1fr));
    gap: 1rem;
}

.book-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: all .2s;
    text-decoration: none;
    display: block;
    backdrop-filter: blur(8px);
}

.book-card:hover {
    border-color: rgba(201,168,76,.35);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.book-title {
    font-family: var(--font-serif);
    font-size: 18px;
    font-weight: bold;
    color: var(--text-primary);
    margin-bottom: .25rem;
    line-height: 1.4;
}

.book-author {
    font-size: 13px;
    color: var(--gold-400);
    margin-bottom: .5rem;
}

.book-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .3rem;
}

.book-meta span{
    align-content: center;
}

@@media (max-width:640px) {
    .search-input {
        padding-left: 4rem;
        font-size: 15px;
    }

    .filters-grid {
        grid-template-columns: 1fr 1fr;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }
}