/* Knowledge Review Console — Dark Theme */

:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface-hover: #232736;
    --border: #2a2e3a;
    --text: #e4e4e7;
    --text-muted: #9ca3af;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --green: #22c55e;
    --orange: #f59e0b;
    --red: #ef4444;
    --purple: #a78bfa;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ─── Header ──────────────────────────────────────────────────────── */

.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.reviewer-toggle {
    display: flex;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px;
    gap: 2px;
}

.reviewer-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-radius: 4px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.reviewer-btn:hover {
    color: var(--text);
}

.reviewer-btn.active {
    background: var(--accent);
    color: white;
}

.session-timer {
    font-size: 13px;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

.session-timer.nudge {
    color: var(--orange);
    font-weight: 600;
}

/* ─── Tab Bar ─────────────────────────────────────────────────────── */

.tab-bar {
    display: flex;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-btn .badge {
    display: inline-block;
    background: var(--accent);
    color: white;
    font-size: 11px;
    padding: 1px 6px;
    border-radius: 8px;
    margin-left: 6px;
    font-weight: 600;
}

/* ─── Tab Content ─────────────────────────────────────────────────── */

.tab-content {
    padding: 20px 24px;
    max-width: 960px;
    margin: 0 auto;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* ─── Domain Pills ────────────────────────────────────────────────── */

.domain-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.domain-pill {
    font-size: 12px;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.domain-pill:hover {
    border-color: var(--accent);
    color: var(--text);
}

.domain-pill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.domain-pill.completed {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.3);
    color: var(--green);
}

.domain-pill .count {
    font-weight: 600;
    margin-left: 4px;
}

/* ─── Progress Bar ────────────────────────────────────────────────── */

.progress-bar-wrap {
    background: var(--surface);
    border-radius: 8px;
    height: 28px;
    position: relative;
    margin-bottom: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--green));
    border-radius: 7px;
    transition: width 0.4s ease;
    width: 0%;
}

.progress-label {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
}

/* ─── Rule Card ───────────────────────────────────────────────────── */

.rule-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.rule-card .condition {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 16px;
    color: var(--text);
}

.rule-card .condition em {
    color: var(--orange);
    font-style: normal;
    font-weight: 600;
}

.rule-card .action {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 20px;
    color: var(--text);
}

.rule-card .action em {
    color: var(--green);
    font-style: normal;
    font-weight: 600;
}

.rule-card .rationale {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 16px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border-left: 3px solid var(--border);
}

.rule-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.meta-badge {
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 500;
}

.meta-badge.source {
    background: rgba(167, 139, 250, 0.12);
    color: var(--purple);
    border: 1px solid rgba(167, 139, 250, 0.3);
}

.meta-badge.confidence-high {
    background: rgba(34, 197, 94, 0.12);
    color: var(--green);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.meta-badge.confidence-medium {
    background: rgba(245, 158, 11, 0.12);
    color: var(--orange);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.meta-badge.confidence-low {
    background: rgba(239, 68, 68, 0.12);
    color: var(--red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.meta-badge.contradiction {
    background: rgba(239, 68, 68, 0.12);
    color: var(--red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Decision buttons */
.decision-buttons {
    display: flex;
    gap: 10px;
}

.btn-decision {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-decision:active {
    transform: scale(0.97);
}

.btn-agree {
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
    border: 1px solid rgba(34, 197, 94, 0.3);
}
.btn-agree:hover {
    background: rgba(34, 197, 94, 0.25);
}

.btn-modify {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent);
    border: 1px solid rgba(59, 130, 246, 0.3);
}
.btn-modify:hover {
    background: rgba(59, 130, 246, 0.25);
}

.btn-disagree {
    background: rgba(239, 68, 68, 0.15);
    color: var(--red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-disagree:hover {
    background: rgba(239, 68, 68, 0.25);
}

/* Modify panel (inline) */
.modify-panel {
    display: none;
    margin-top: 16px;
    padding: 16px;
    background: rgba(59, 130, 246, 0.06);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 10px;
}

.modify-panel.active {
    display: block;
}

.modify-panel label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 4px;
    margin-top: 12px;
}

.modify-panel label:first-child {
    margin-top: 0;
}

.modify-panel textarea {
    width: 100%;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px;
    font-size: 14px;
    font-family: inherit;
    min-height: 60px;
    resize: vertical;
}

.modify-panel textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.modify-panel .modify-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.btn-save {
    padding: 8px 20px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}
.btn-save:hover { background: var(--accent-hover); }

.btn-cancel {
    padding: 8px 20px;
    background: var(--surface);
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
}
.btn-cancel:hover { background: var(--surface-hover); }

/* ─── Contradiction Cards ─────────────────────────────────────────── */

.contradiction-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
}

.contradiction-group.resolved {
    opacity: 0.5;
    border-color: rgba(34, 197, 94, 0.3);
}

.contradiction-header {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--orange);
}

.contradiction-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.contra-rule {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    cursor: pointer;
    transition: all 0.15s;
}

.contra-rule:hover {
    border-color: var(--accent);
}

.contra-rule.selected {
    border-color: var(--green);
    background: rgba(34, 197, 94, 0.06);
}

.contra-rule .source {
    font-size: 11px;
    color: var(--purple);
    font-weight: 500;
    margin-bottom: 6px;
}

.contra-rule .rule-text {
    font-size: 13px;
    line-height: 1.5;
}

.contra-rule .conf-badge {
    font-size: 10px;
    margin-top: 8px;
    display: inline-block;
    padding: 2px 8px;
    border-radius: 8px;
}

/* Per-rule actions inside contradiction cards */
.contra-rule-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.contra-rule-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.btn-rule-approve,
.btn-rule-reject {
    flex: 1;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid;
    transition: all 0.15s;
}

.btn-rule-approve {
    background: rgba(34, 197, 94, 0.1);
    color: var(--green);
    border-color: rgba(34, 197, 94, 0.3);
}
.btn-rule-approve:hover {
    background: rgba(34, 197, 94, 0.25);
}

.btn-rule-reject {
    background: rgba(239, 68, 68, 0.1);
    color: var(--red);
    border-color: rgba(239, 68, 68, 0.3);
}
.btn-rule-reject:hover {
    background: rgba(239, 68, 68, 0.25);
}

.contra-rule.approved {
    border-color: rgba(34, 197, 94, 0.4);
    background: rgba(34, 197, 94, 0.06);
    opacity: 0.8;
}

.contra-rule.rejected {
    border-color: rgba(239, 68, 68, 0.3);
    background: rgba(239, 68, 68, 0.04);
    opacity: 0.5;
}

.contra-rule-status {
    font-size: 11px;
    font-weight: 600;
    margin-top: 8px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.contra-rule-status.approve {
    color: var(--green);
}

.contra-rule-status.reject {
    color: var(--red);
}

.contradiction-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-contra {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    transition: all 0.15s;
}

.btn-contra:hover {
    border-color: var(--accent);
    color: var(--text);
}

.btn-contra.primary {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.contradiction-subheader {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.btn-contra.not-contra {
    background: rgba(167, 139, 250, 0.1);
    color: var(--purple);
    border-color: rgba(167, 139, 250, 0.3);
}
.btn-contra.not-contra:hover {
    background: rgba(167, 139, 250, 0.2);
}

.btn-contra.discard {
    background: rgba(239, 68, 68, 0.1);
    color: var(--red);
    border-color: rgba(239, 68, 68, 0.3);
}
.btn-contra.discard:hover {
    background: rgba(239, 68, 68, 0.2);
}

.resolution-badge {
    font-size: 12px;
    font-weight: 500;
    color: var(--green);
    padding: 8px 0;
    text-transform: capitalize;
}

.see-all-toggle {
    font-size: 12px;
    color: var(--accent);
    cursor: pointer;
    margin-bottom: 12px;
    display: inline-block;
}

.see-all-toggle:hover {
    text-decoration: underline;
}

/* ─── Conflict Pair Cards ─────────────────────────────────────────── */

.conflict-context {
    display: flex;
    align-items: center;
    margin-bottom: 16px;
}

.conflict-pair {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: stretch;
    margin-bottom: 20px;
}

.conflict-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.15s;
}

.conflict-card:hover {
    border-color: var(--accent);
}

.conflict-card.selected {
    border-color: var(--green);
    background: rgba(34, 197, 94, 0.06);
    box-shadow: 0 0 0 1px var(--green);
}

.conflict-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.conflict-card-action {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
}

.conflict-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-muted);
    padding: 0 4px;
}

.conflict-buttons {
    display: flex;
    gap: 10px;
}

.tab-count {
    font-size: 11px;
    font-weight: 600;
    color: var(--orange);
}

@media (max-width: 768px) {
    .conflict-pair {
        grid-template-columns: 1fr;
    }
    .conflict-vs {
        padding: 8px 0;
    }
}

/* ─── Exercise Tag Card ───────────────────────────────────────────── */

.exercise-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.exercise-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.exercise-usage {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.dim-group {
    margin-bottom: 16px;
}

.dim-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.dim-tooltip {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.6;
    cursor: help;
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.chip {
    font-size: 12px;
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.chip:hover {
    border-color: var(--accent);
    color: var(--text);
}

.chip.selected {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.exercise-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.exercise-counter {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* ─── Source Tier Table ────────────────────────────────────────────── */

.source-table {
    width: 100%;
    border-collapse: collapse;
}

.source-table th {
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}

.source-table td {
    padding: 12px 14px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}

.source-table tr:hover {
    background: var(--surface-hover);
}

.source-table select {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 13px;
    cursor: pointer;
}

.source-table select:focus {
    outline: none;
    border-color: var(--accent);
}

.source-save-wrap {
    margin-top: 16px;
    display: flex;
    justify-content: flex-end;
}

/* ─── Dashboard ───────────────────────────────────────────────────── */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-card .stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.domain-breakdown {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 16px;
}

.domain-breakdown h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.domain-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 0;
}

.domain-row .name {
    font-size: 13px;
    min-width: 160px;
}

.domain-row .bar-bg {
    flex: 1;
    height: 8px;
    background: var(--bg);
    border-radius: 4px;
    overflow: hidden;
}

.domain-row .bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--green));
    border-radius: 4px;
    transition: width 0.4s ease;
}

.domain-row .count {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 50px;
    text-align: right;
}

.recent-activity {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
}

.recent-activity h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
}

.activity-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 13px;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.activity-decision {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 8px;
    font-weight: 500;
}

.activity-decision.approve {
    background: rgba(34, 197, 94, 0.12);
    color: var(--green);
}

.activity-decision.reject {
    background: rgba(239, 68, 68, 0.12);
    color: var(--red);
}

.activity-decision.modify {
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent);
}

/* ─── Tab Guide (collapsible help at top of each tab) ─────────────── */

.tab-guide {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    margin-bottom: 16px;
    overflow: hidden;
}

.tab-guide-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    cursor: pointer;
    user-select: none;
}

.tab-guide-toggle:hover {
    background: var(--surface-hover);
}

.tab-guide-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}

.tab-guide-arrow {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.tab-guide.collapsed .tab-guide-arrow {
    transform: rotate(-90deg);
}

.tab-guide-body {
    padding: 0 16px 16px;
    border-top: 1px solid var(--border);
}

.tab-guide.collapsed .tab-guide-body {
    display: none;
}

.tab-guide-body p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text);
    margin-top: 12px;
}

.tab-guide-body ol,
.tab-guide-body ul {
    padding-left: 20px;
    margin-top: 10px;
}

.tab-guide-body li {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text);
    margin-bottom: 4px;
}

.tab-guide-body strong {
    color: var(--text);
}

.guide-btn-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 6px;
    margin: 0 2px;
}

.guide-btn-label.green {
    background: rgba(34, 197, 94, 0.15);
    color: var(--green);
}

.guide-btn-label.blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent);
}

.guide-btn-label.red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--red);
}

.guide-btn-label.grey {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
}

.guide-tip {
    font-size: 13px !important;
    color: var(--orange) !important;
    font-style: italic;
    margin-top: 12px !important;
}

/* ─── Conflict summary rows (all-resolved view) ──────────────────── */

.conflict-summary-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.15s;
}

.conflict-summary-row:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
}

/* ─── Resolved notice + change decision ───────────────────────────── */

.resolved-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px;
    margin-top: 16px;
    background: rgba(34, 197, 94, 0.06);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 8px;
    color: var(--green);
    font-size: 13px;
    font-weight: 500;
}

.btn-change-decision {
    background: transparent;
    color: var(--orange);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-change-decision:hover {
    background: rgba(245, 158, 11, 0.1);
}

/* ─── Submission rows ─────────────────────────────────────────────── */

.submission-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: all 0.15s;
}

.submission-row:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
}

.submission-decision {
    font-size: 12px;
    font-weight: 600;
    min-width: 80px;
}

.submission-action {
    flex: 1;
    font-size: 13px;
    color: var(--text);
}

.submission-meta {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ─── Back / Skip nav links ───────────────────────────────────────── */

.nav-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 12px;
}

.btn-back-link {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    cursor: pointer;
    padding: 4px 0;
    transition: color 0.15s;
}

.btn-back-link:hover {
    color: var(--accent);
}

/* ─── Shared ──────────────────────────────────────────────────────── */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    color: var(--text-muted);
    text-align: center;
    gap: 8px;
    padding: 24px;
}

.empty-state p { font-size: 14px; }

/* Toast */
#toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    max-width: 400px;
}

.toast.visible { transform: translateX(0); }

.toast-success {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.toast-error {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Spinner */
.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ─── Mobile ──────────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .tab-content { padding: 16px; }

    .tab-bar { padding: 0 12px; }
    .tab-btn { padding: 10px 14px; font-size: 13px; }

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

    .decision-buttons { flex-direction: column; }

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

    .rule-card { padding: 16px; }
    .rule-card .condition,
    .rule-card .action { font-size: 15px; }
}

@media (max-width: 480px) {
    .dashboard-grid { grid-template-columns: 1fr; }
    .domain-pills { gap: 4px; }
    .domain-pill { padding: 5px 10px; font-size: 11px; }
}