body {
    --evidence-accent: var(--primary-color, var(--bs-primary, #0d6efd));
    --evidence-ink: var(--text-color, var(--bs-body-color, #212529));
    --evidence-paper: var(--card-bg, var(--bs-body-bg, #fff));
    --evidence-line: var(--border-color, var(--bs-border-color, #dee2e6));
    --evidence-muted: var(--text-muted, var(--bs-secondary-color, #6c757d));
}

body.dark-mode .evidence-drawer .btn-close {
    filter: invert(1);
}

.evidence-source-trigger {
    position: absolute;
    top: -6px;
    right: -6px;
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--evidence-line);
    border-radius: 50%;
    background: var(--evidence-paper);
    color: var(--evidence-accent);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.14));
    cursor: pointer;
    font-size: 0.65rem;
    z-index: 20;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.evidence-source-trigger:hover {
    color: var(--evidence-paper);
    background: var(--evidence-accent);
    transform: translateY(-1px);
}

.evidence-source-trigger:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--evidence-accent) 35%, transparent);
    outline-offset: 3px;
}

.key-point-card[data-evidence-ids],
.evidence-share-keypoint[data-evidence-ids] {
    position: relative;
}

.evidence-drawer {
    --bs-offcanvas-width: min(430px, 100vw);
    background: var(--evidence-paper);
    color: var(--evidence-ink);
    border-left: 1px solid var(--evidence-line);
    box-shadow: var(--shadow, -12px 0 32px rgba(0, 0, 0, 0.18));
}

.evidence-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--evidence-line);
}

.evidence-drawer .offcanvas-title {
    flex: 1 1 auto;
    min-width: 0;
}

.evidence-drawer-close {
    display: inline-grid;
    flex: 0 0 36px;
    place-items: center;
    width: 36px;
    height: 36px;
    margin: 0;
    padding: 0;
    border: 1px solid var(--evidence-line);
    border-radius: 50%;
    background: var(--evidence-paper) !important;
    color: var(--evidence-ink);
    font: inherit;
    font-size: 1.7rem;
    line-height: 1;
    text-indent: 0;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.evidence-drawer-close:hover {
    background: var(--sidebar-hover-bg, color-mix(in srgb, var(--evidence-accent) 8%, transparent)) !important;
}

.evidence-drawer-close:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--evidence-accent) 35%, transparent);
    outline-offset: 2px;
}

.evidence-drawer .offcanvas-title {
    color: inherit;
    font-size: 1.25rem;
    font-weight: 700;
}

.evidence-drawer-body {
    padding: 1.25rem 1.5rem 2rem;
}

.evidence-validity-note {
    margin: 0 0 1.25rem;
    padding: 0.8rem 0.9rem;
    border: 1px solid var(--evidence-line);
    border-radius: var(--bs-border-radius, 0.375rem);
    background: color-mix(in srgb, var(--evidence-accent) 8%, transparent);
    color: var(--evidence-muted);
    font-size: 0.82rem;
    line-height: 1.55;
}

.evidence-grounding-status {
    margin: 0 0 0.85rem;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--evidence-line);
    border-left: 4px solid var(--evidence-accent);
    border-radius: var(--bs-border-radius, 0.375rem);
    background: color-mix(in srgb, var(--evidence-accent) 8%, transparent);
    color: var(--text-color, var(--evidence-ink));
    font-size: 0.82rem;
    font-weight: 700;
}

.evidence-grounding-status--locator_valid { border-left-color: #38a169; }
.evidence-grounding-status--unavailable { border-left-color: #8a94a3; }
.evidence-share-keypoints > .evidence-grounding-status { grid-column: 1 / -1; }

.evidence-item {
    opacity: 0;
    margin-bottom: 1rem;
    padding: 1rem;
    border: 1px solid var(--evidence-line);
    border-radius: var(--bs-border-radius, 0.375rem);
    background: var(--evidence-paper);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, 0.08));
    animation: evidence-in 260ms ease forwards;
    animation-delay: calc(var(--evidence-order, 0) * 55ms);
}

.evidence-item-meta {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--evidence-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.evidence-item blockquote {
    margin: 0;
    padding-left: 0.95rem;
    border-left: 3px solid var(--evidence-accent);
    color: inherit;
    font-size: 0.96rem;
    line-height: 1.7;
    white-space: pre-wrap;
}

.evidence-jump-link {
    display: inline-flex;
    align-items: center;
    margin-top: 0.9rem;
    padding-bottom: 0.12rem;
    border-bottom: 1px solid currentColor;
    color: var(--evidence-accent);
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
}

.evidence-jump-link::after {
    content: '↗';
    margin-left: 0.35rem;
}

.evidence-outline {
    padding: 0.25rem;
}

.evidence-outline-central {
    width: fit-content;
    max-width: 90%;
    margin: 0 auto 1.5rem;
    padding: 0.85rem 1.15rem;
    border: 1px solid rgba(118, 185, 0, 0.5);
    border-radius: 4px;
    background: rgba(118, 185, 0, 0.12);
    color: inherit;
    font-weight: 700;
    text-align: center;
}

.evidence-outline-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr));
    gap: 0.9rem;
}

.evidence-outline-branch {
    position: relative;
    padding: 0.9rem 1rem;
    border-top: 3px solid var(--evidence-accent);
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.045);
    box-shadow: 0 5px 18px rgba(0, 0, 0, 0.09);
}

.evidence-outline-label {
    padding-right: 0.65rem;
    font-weight: 700;
    line-height: 1.45;
}

.evidence-outline ul {
    margin: 0.75rem 0 0;
    padding-left: 1.15rem;
}

.evidence-outline-child {
    position: relative;
    margin: 0.45rem 0;
    color: var(--text-color, inherit);
    font-size: 0.9rem;
}

.evidence-share-card {
    position: relative;
    overflow: visible;
}

.evidence-share-keypoints {
    display: grid;
    gap: 0.75rem;
}

.evidence-share-keypoint {
    display: grid;
    grid-template-columns: 2.2rem 1fr;
    gap: 0.8rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border-color, rgba(128, 128, 128, 0.28));
    border-radius: 4px;
}

.evidence-share-number {
    color: var(--evidence-accent);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.evidence-share-keypoint h3 {
    margin: 0 0 0.35rem;
    color: inherit;
    font-size: 1rem;
}

.evidence-share-keypoint p {
    margin: 0;
    line-height: 1.65;
    white-space: pre-wrap;
}

@keyframes evidence-in {
    from { opacity: 0; transform: translateY(7px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 575.98px) {
    .evidence-drawer { --bs-offcanvas-width: 100vw; }
    .evidence-drawer-close { min-width: 44px; min-height: 44px; }
    .evidence-drawer-body { padding-inline: 1rem; }
    .evidence-item-meta { flex-direction: column; gap: 0.25rem; }
}

@media (prefers-reduced-motion: reduce) {
    .evidence-source-trigger,
    .evidence-item { transition: none; animation: none; opacity: 1; }
}