.benchmark-page {
    padding: 120px 0 5rem;
    background: var(--gray-light);
    min-height: 100vh;
}

.benchmark-header {
    max-width: 900px;
    margin-bottom: 2.5rem;
}

.benchmark-header h1 {
    color: var(--navy);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.benchmark-intro {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--gray-dark);
    margin-bottom: 1.5rem;
}

.benchmark-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 1.5rem;
}

.benchmark-dataset-link {
    text-decoration: none;
}

.benchmark-meta-note {
    color: var(--gray);
    font-size: 0.95rem;
}

.benchmark-meta-note code {
    background: var(--white);
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.benchmark-style-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.benchmark-tab {
    border: 2px solid var(--navy);
    background: var(--white);
    color: var(--navy);
    padding: 0.75rem 1.25rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.benchmark-tab:hover {
    background: rgba(0, 51, 102, 0.06);
}

.benchmark-tab.is-active {
    background: var(--navy);
    color: var(--white);
}

.benchmark-style-detail {
    background: var(--white);
    border-radius: 15px;
    padding: 1.75rem 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border-left: 4px solid var(--navy);
}

.benchmark-style-detail h2 {
    color: var(--navy);
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.benchmark-style-detail p {
    color: var(--gray-dark);
    line-height: 1.75;
    margin-bottom: 1rem;
}

.benchmark-style-traits {
    margin: 0;
    padding-left: 1.25rem;
    color: var(--gray-dark);
    line-height: 1.8;
}

.benchmark-style-traits li {
    margin-bottom: 0.35rem;
}

.benchmark-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.benchmark-panel {
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.benchmark-panel-opus {
    border-top: 4px solid var(--navy);
}

.benchmark-panel-fable {
    border-top: 4px solid var(--orange);
}

.benchmark-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-light);
}

.benchmark-panel-header h2 {
    color: var(--navy);
    font-size: 1.35rem;
}

.benchmark-panel-badge {
    background: var(--gray-light);
    color: var(--gray);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
}

.benchmark-output-block {
    padding: 1.25rem 1.5rem 1.5rem;
}

.benchmark-output-block + .benchmark-output-block {
    border-top: 1px solid var(--gray-light);
}

.benchmark-output-block h3 {
    color: var(--gray);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.benchmark-frame-wrap,
.benchmark-svg-wrap {
    border: 1px solid var(--gray-light);
    border-radius: 10px;
    background: #fafbfc;
    overflow: hidden;
    min-height: 280px;
}

.benchmark-frame {
    width: 100%;
    min-height: 280px;
    border: 0;
    display: block;
    background: var(--white);
}

.benchmark-svg,
.benchmark-svg-fallback {
    width: 100%;
    min-height: 220px;
    display: block;
}

.benchmark-legend {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.benchmark-legend h2 {
    color: var(--navy);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.benchmark-tree {
    background: var(--gray-light);
    border-radius: 10px;
    padding: 1.25rem;
    overflow-x: auto;
}

.benchmark-tree code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--gray-dark);
}

.back-link {
    display: inline-block;
    margin-bottom: 2rem;
    color: var(--orange);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--orange-dark);
}

.nav-link-active {
    color: var(--orange) !important;
}

@media (max-width: 960px) {
    .benchmark-comparison {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .benchmark-header h1 {
        font-size: 2rem;
    }

    .benchmark-panel-header,
    .benchmark-output-block {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}