.tsbt-wrap {
    --tsbt-primary: #3f73ae;
    --tsbt-dark: #2a507a;
    --tsbt-ink: #1f2937;
    --tsbt-muted: #6b7280;
    --tsbt-border: #cbd5e1;
    --tsbt-bg: #f8fafc;
    font-family: 'DM Sans', system-ui, sans-serif;
    color: var(--tsbt-ink);
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    background: #ffffff;
    border-radius: 16px;
}

.tsbt-wrap,
.tsbt-wrap * {
    box-sizing: border-box;
}

.tsbt-wrap .tsbt-name { color: #1f2937 !important; }
.tsbt-wrap .tsbt-code { color: #2a507a !important; background: #f1f5f9 !important; }
.tsbt-wrap .tsbt-meta dt { color: #6b7280 !important; }
.tsbt-wrap .tsbt-meta dd { color: #2a507a !important; }
.tsbt-wrap .tsbt-tests p { color: #4b5563 !important; }
.tsbt-wrap .tsbt-tests summary { color: #3f73ae !important; }
.tsbt-wrap .tsbt-count { color: #6b7280 !important; }
.tsbt-wrap .tsbt-empty { color: #6b7280 !important; }
.tsbt-wrap .tsbt-card { background: #fff !important; }

.tsbt-search {
    position: sticky;
    top: 0;
    z-index: 10;
    background: #fff;
    padding: 1rem 0;
    border-bottom: 1px solid var(--tsbt-border);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.tsbt-search input {
    flex: 1;
    min-width: 280px;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--tsbt-border);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s;
}

.tsbt-search input:focus {
    border-color: var(--tsbt-primary);
}

.tsbt-count {
    font-size: 0.9rem;
    color: var(--tsbt-muted);
    font-weight: 500;
}

.tsbt-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.tsbt-card {
    background: #fff;
    border: 2px solid var(--tsbt-border);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.tsbt-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    border-color: var(--tsbt-primary);
}

.tsbt-card[hidden] {
    display: none;
}

.tsbt-card-head {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.tsbt-code {
    flex-shrink: 0;
    background: var(--tsbt-bg);
    color: var(--tsbt-dark);
    font-family: 'SF Mono', Menlo, monospace;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    letter-spacing: 0.02em;
}

.tsbt-name {
    font-size: 1.05rem;
    margin: 0;
    line-height: 1.3;
    font-weight: 600;
}

.tsbt-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: 0.5rem;
    margin: 0;
    padding: 0.75rem 0;
    border-top: 1px solid var(--tsbt-border);
    border-bottom: 1px solid var(--tsbt-border);
}

.tsbt-meta div {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.tsbt-meta dt {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--tsbt-muted);
    font-weight: 500;
}

.tsbt-meta dd {
    font-size: 1rem;
    font-weight: 600;
    color: var(--tsbt-dark);
    margin: 0;
}

.tsbt-tests {
    font-size: 0.9rem;
}

.tsbt-tests summary {
    cursor: pointer;
    color: var(--tsbt-primary);
    font-weight: 500;
    user-select: none;
}

.tsbt-tests summary:hover {
    color: var(--tsbt-dark);
}

.tsbt-tests p {
    margin: 0.5rem 0 0;
    color: var(--tsbt-muted);
    line-height: 1.5;
}

.tsbt-empty {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--tsbt-muted);
    font-size: 1.05rem;
}

/* ============================================
   LOADING + ERROR STATES (v1.1)
   ============================================ */
.tsbt-list.is-loading {
    min-height: 240px;
    opacity: 0.55;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.tsbt-loading,
.tsbt-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1rem;
    color: #6b7280;
    font-size: 0.95rem;
}

.tsbt-error {
    color: #b91c1c;
}

/* ============================================
   PAGINATION (v1.1)
   ============================================ */
.tsbt-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding: 1rem;
    flex-wrap: wrap;
}

.tsbt-page-list {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.tsbt-page-btn,
.tsbt-page-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.85rem;
    background: #fff;
    color: #2a507a !important;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1.5px solid #cbd5e1;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease, color 0.15s ease;
    line-height: 1;
}

.tsbt-page-btn:hover:not(:disabled),
.tsbt-page-num:hover:not(.is-active) {
    background: #f1f5f9;
    border-color: #3f73ae;
}

.tsbt-page-btn:active:not(:disabled),
.tsbt-page-num:active:not(.is-active) {
    transform: translateY(1px);
}

.tsbt-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.tsbt-page-num.is-active {
    background: #3f73ae;
    color: #ffffff !important;
    border-color: #3f73ae;
    cursor: default;
}

.tsbt-page-ellipsis {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.8rem;
    color: #6b7280;
    font-weight: 600;
    user-select: none;
}

@media (max-width: 640px) {
    .tsbt-pagination {
        gap: 0.35rem;
    }
    .tsbt-page-btn span:nth-child(2) {
        /* Hide "Previous" / "Next" text on small screens, keep arrows only. */
        display: none;
    }
    .tsbt-page-btn {
        padding: 0 0.65rem;
        min-width: 2.25rem;
    }
    .tsbt-page-num {
        min-width: 2.25rem;
        height: 2.25rem;
        font-size: 0.85rem;
    }
}