/* ═══════════════════════════════════════════════════════
   Nexus Intelligence — Design System
   ═══════════════════════════════════════════════════════ */

/* ── Reset & Variables ── */

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

:root {
    --nx-bg: #0a0a0f;
    --nx-bg-raised: #12121a;
    --nx-bg-hover: #1a1a26;
    --nx-bg-card: #141420;
    --nx-border: rgba(255, 255, 255, 0.06);
    --nx-border-hover: rgba(255, 255, 255, 0.14);
    --nx-text: #e4e4ec;
    --nx-text-secondary: #8a8a9a;
    --nx-text-dim: #5a5a6e;
    --nx-heading: #f0f0f5;
    --nx-accent: #6366f1;
    --nx-accent-light: #818cf8;
    --nx-accent-soft: rgba(99, 102, 241, 0.10);
    --nx-accent-hover: rgba(99, 102, 241, 0.18);
    --nx-green: #10b981;
    --nx-green-soft: rgba(16, 185, 129, 0.12);
    --nx-orange: #f59e0b;
    --nx-orange-soft: rgba(245, 158, 11, 0.10);
    --nx-red: #ef4444;
    --nx-red-soft: rgba(239, 68, 68, 0.10);
    --nx-blue: #3b82f6;
    --nx-blue-soft: rgba(59, 130, 246, 0.12);
    --nx-glass: rgba(255, 255, 255, 0.06);
    --nx-glass-subtle: rgba(255, 255, 255, 0.04);
    --nx-glass-faint: rgba(255, 255, 255, 0.02);
    --nx-glass-border: rgba(255, 255, 255, 0.03);
    --nx-radius: 8px;
    --nx-radius-lg: 12px;
    --nx-font: 'Inter', -apple-system, system-ui, sans-serif;
    --nx-transition: 0.15s ease;
}

[data-theme="light"] {
    --nx-bg: #f5f3ef;
    --nx-bg-raised: #ede9e3;
    --nx-bg-hover: #e8e4de;
    --nx-bg-card: #ffffff;
    --nx-border: rgba(0, 0, 0, 0.08);
    --nx-border-hover: rgba(0, 0, 0, 0.15);
    --nx-text: #1a1a2e;
    --nx-text-secondary: #5a5a6e;
    --nx-text-dim: #8a8a9a;
    --nx-heading: #1a1a2e;
    --nx-accent: #4f46e5;
    --nx-accent-light: #6366f1;
    --nx-accent-soft: rgba(79, 70, 229, 0.08);
    --nx-accent-hover: rgba(79, 70, 229, 0.14);
    --nx-green-soft: rgba(16, 185, 129, 0.10);
    --nx-orange-soft: rgba(245, 158, 11, 0.08);
    --nx-red-soft: rgba(239, 68, 68, 0.08);
    --nx-blue-soft: rgba(59, 130, 246, 0.10);
    --nx-glass: rgba(0, 0, 0, 0.04);
    --nx-glass-subtle: rgba(0, 0, 0, 0.03);
    --nx-glass-faint: rgba(0, 0, 0, 0.015);
    --nx-glass-border: rgba(0, 0, 0, 0.06);
}

body {
    font-family: var(--nx-font);
    background: var(--nx-bg);
    color: var(--nx-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--nx-accent); text-decoration: none; }
a:hover { color: var(--nx-accent-light); }

h1, h2, h3, h4 { color: var(--nx-heading); font-weight: 600; line-height: 1.3; }
h2 { font-size: 1.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.75rem; }

/* ── Site Header ── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--nx-border);
}

.site-nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 56px;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--nx-heading) !important;
    letter-spacing: -0.01em;
    flex-shrink: 0;
}

.nav-primary {
    display: flex;
    gap: 0.25rem;
}

.nav-link {
    padding: 0.4rem 0.85rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--nx-text-secondary) !important;
    transition: all var(--nx-transition);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.nav-link:hover {
    color: var(--nx-text) !important;
    background: var(--nx-bg-hover);
}

.nav-link.active {
    color: var(--nx-text) !important;
    background: var(--nx-accent-soft);
}

.nav-secondary { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; }

.theme-toggle {
    background: none;
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    cursor: pointer;
    padding: 0.25rem 0.45rem;
    font-size: 0.95rem;
    color: var(--nx-text-secondary);
    transition: var(--nx-transition);
    line-height: 1;
}
.theme-toggle:hover {
    border-color: var(--nx-border-hover);
    color: var(--nx-text);
}
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="light"] .theme-icon-dark { display: none; }

.nav-dropdown { position: relative; }

.nav-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    background: var(--nx-bg-raised);
    border: 1px solid var(--nx-border-hover);
    border-radius: var(--nx-radius);
    padding: 0.4rem;
    min-width: 160px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.nav-dropdown-menu a {
    display: block;
    padding: 0.45rem 0.75rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--nx-text-secondary);
}

.nav-dropdown-menu a:hover {
    background: var(--nx-bg-hover);
    color: var(--nx-text);
}

.nav-more-btn[aria-expanded="true"] + .nav-dropdown-menu {
    display: block;
}

/* ── Main Content ── */

.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    width: 100%;
    flex: 1;
}

.main-content.full-bleed {
    max-width: none;
    padding: 0;
}

/* ── Page Header ── */

.page-header {
    margin-bottom: 2rem;
}

.page-header h2 {
    margin-bottom: 0.25rem;
}

.page-subtitle {
    color: var(--nx-text-secondary);
    font-size: 0.9rem;
}

/* ── Cards ── */

.card {
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    padding: 1.25rem;
    transition: border-color var(--nx-transition);
}

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

.card-section {
    margin-bottom: 2rem;
}

.card-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--nx-text-dim);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--nx-border);
}

/* ── Badges ── */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.badge-emerging { background: var(--nx-orange-soft); color: var(--nx-orange); }
.badge-active { background: var(--nx-green-soft); color: var(--nx-green); }
.badge-stale { background: rgba(127, 140, 141, 0.15); color: #95a5a6; }
.badge-resolved { background: rgba(127, 140, 141, 0.10); color: #7f8c8d; }

.badge-state { background: rgba(239, 68, 68, 0.15); color: var(--nx-red); }
.badge-public { background: var(--nx-blue-soft); color: var(--nx-blue); }
.badge-private { background: rgba(127, 140, 141, 0.12); color: #95a5a6; }
.badge-academic, .badge-nonprofit { background: var(--nx-green-soft); color: var(--nx-green); }
.badge-unknown { background: rgba(127, 140, 141, 0.10); color: #7f8c8d; }

.badge-accepted { background: var(--nx-green-soft); color: var(--nx-green); }
.badge-rejected { background: var(--nx-red-soft); color: var(--nx-red); }

/* ── Entity Tags ── */

.entity-tag {
    display: inline-block;
    padding: 0.1rem 0.45rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 500;
    background: var(--nx-accent-soft);
    color: var(--nx-accent);
    transition: background var(--nx-transition);
}

a.entity-tag:hover {
    background: var(--nx-accent-hover);
    color: var(--nx-accent-light);
}

/* ── Significance ── */

.sig-indicator {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    font-size: 0.72rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.sig-high { background: var(--nx-red-soft); color: var(--nx-red); }
.sig-med { background: var(--nx-orange-soft); color: var(--nx-orange); }
.sig-low { background: rgba(127, 140, 141, 0.15); color: #95a5a6; }

.sig-bar {
    display: flex;
    gap: 2px;
    align-items: center;
}

.sig-bar-segment {
    width: 12px;
    height: 6px;
    border-radius: 2px;
    background: var(--nx-glass);
}

.sig-bar-segment.filled { background: var(--nx-accent); }
.sig-bar-segment.filled.high { background: var(--nx-red); }
.sig-bar-segment.filled.med { background: var(--nx-orange); }

/* ═══════════════════════════════════════════════════════
   BRIEFING (Homepage)
   ═══════════════════════════════════════════════════════ */

.briefing-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2.5rem;
    align-items: start;
}

@media (max-width: 900px) {
    .briefing-layout { grid-template-columns: 1fr; }
}

.briefing-header {
    margin-bottom: 2rem;
}

.briefing-header-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
}

.briefing-header-left {
    flex: 1;
    min-width: 0;
}

/* ── Pipeline Controls ── */

.pipeline-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.last-run-label {
    font-size: 0.78rem;
    color: var(--nx-text-dim);
}

.status-badge {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}
.status-badge.status-failed {
    background: var(--nx-red-soft);
    color: #ef4444;
}

.btn-sm {
    font-size: 0.78rem;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    border: 1px solid var(--nx-border);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.15s ease;
}
.btn-sm:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-accent {
    background: var(--nx-accent);
    color: #fff;
    border-color: var(--nx-accent);
}
.btn-accent:hover:not(:disabled) {
    filter: brightness(1.1);
}

.pipeline-controls-status {
    font-size: 0.78rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
}
.pipeline-controls-status.status-running {
    background: var(--nx-blue-soft);
    color: var(--nx-text);
}
.pipeline-controls-status.status-error {
    background: var(--nx-red-soft);
    color: #ef4444;
}
.pipeline-controls-status.status-done {
    background: var(--nx-green-soft);
    color: #10b981;
}
.pipeline-controls-status.status-cooldown {
    color: var(--nx-text-dim);
}
.pipeline-controls-status a {
    color: var(--nx-accent);
    text-decoration: underline;
    margin-left: 0.3rem;
}

/* ── Audio Player ── */

.audio-player-card {
    flex-shrink: 0;
    width: 320px;
    background: var(--nx-bg-raised);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.audio-player-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.audio-player-icon {
    font-size: 1.25rem;
}

.audio-player-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--nx-text);
    flex: 1;
}

.audio-lang-select {
    appearance: none;
    background: var(--nx-bg-hover);
    color: var(--nx-text);
    border: 1px solid var(--nx-border);
    border-radius: 6px;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-family: var(--nx-font);
    cursor: pointer;
    transition: border-color var(--nx-transition);
}

.audio-lang-select:hover {
    border-color: var(--nx-border-hover);
}

.audio-lang-select:focus {
    outline: none;
    border-color: var(--nx-accent);
}

.audio-player-card audio {
    width: 100%;
    height: 36px;
    border-radius: 6px;
    outline: none;
    color-scheme: dark;
    filter: invert(1) hue-rotate(180deg);
}

.audio-player-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.audio-download-btn,
.audio-rss-btn {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--nx-text-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--nx-border);
    transition: all var(--nx-transition);
    text-decoration: none;
}

.audio-download-btn:hover,
.audio-rss-btn:hover {
    color: var(--nx-text);
    border-color: var(--nx-border-hover);
    background: var(--nx-bg-hover);
}

@media (max-width: 900px) {
    .briefing-header-top {
        flex-direction: column;
    }
    .audio-player-card {
        width: 100%;
    }
}

.briefing-date {
    font-size: 1rem;
    color: var(--nx-text-secondary);
    font-weight: 500;
}

.briefing-nav {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.briefing-nav a {
    padding: 0.3rem 0.7rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--nx-text-secondary);
    border: 1px solid var(--nx-border);
    transition: all var(--nx-transition);
}

.briefing-nav a:hover {
    border-color: var(--nx-border-hover);
    color: var(--nx-text);
}

.briefing-nav a.current {
    background: var(--nx-accent-soft);
    border-color: transparent;
    color: var(--nx-accent);
}

.briefing-content {
    line-height: 1.8;
    font-size: 0.95rem;
}

.briefing-content h2 {
    font-size: 1.25rem;
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--nx-border);
}

.briefing-content h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.briefing-content p {
    margin-bottom: 1rem;
    color: var(--nx-text);
}

/* Source citations — *italic* text becomes source pills */
.briefing-content em {
    font-style: normal;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.82rem;
    font-weight: 500;
    background: var(--nx-glass-subtle);
    color: var(--nx-text-secondary);
    border: 1px solid var(--nx-border);
    white-space: nowrap;
}

.briefing-footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--nx-border);
    font-size: 0.82rem;
    color: var(--nx-text-dim);
}

/* ── Topic Tabs ── */

.topic-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--nx-border);
    padding-bottom: 0;
}

.topic-tab {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    color: var(--nx-text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    font-family: var(--nx-font);
    white-space: nowrap;
    transition: all 0.15s;
}

.topic-tab:hover {
    color: var(--nx-text);
    background: var(--nx-bg-hover);
}

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

.topic-tab-emoji { font-size: 1rem; }

.topic-tab-count {
    font-size: 0.65rem;
    background: var(--nx-glass);
    padding: 0.1rem 0.35rem;
    border-radius: 8px;
    color: var(--nx-text-dim);
}

.topic-tab.active .topic-tab-count {
    background: var(--nx-accent-soft);
    color: var(--nx-accent);
}

/* ── Topic Panels ── */

.topic-panel {
    display: none;
}

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

.topic-panel-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--nx-border);
}

/* ── Structured Briefing (Topic Sections) ── */

.topic-section {
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

.topic-section-header {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--nx-border);
}

.topic-section-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--nx-text);
    flex: 1;
}

.topic-section-emoji {
    font-size: 1.2rem;
}

.topic-section-stats {
    font-size: 0.72rem;
    color: var(--nx-text-dim);
    white-space: nowrap;
}

.briefing-thread-card {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--nx-border);
}

.briefing-thread-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.briefing-thread-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.briefing-thread-headline {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--nx-text);
    text-decoration: none;
    flex: 1;
}

.briefing-thread-headline:hover {
    color: var(--nx-accent);
}

.briefing-thread-entities {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.briefing-event {
    padding: 0.5rem 0.65rem;
    margin: 0.4rem 0;
    border-radius: 6px;
    background: var(--nx-bg-raised);
    border-left: 3px solid var(--nx-border);
}

.briefing-event.major {
    border-left-color: var(--nx-orange);
    background: var(--nx-orange-soft);
}

.briefing-event-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.2rem;
}

.briefing-event-date {
    font-size: 0.72rem;
    color: var(--nx-text-dim);
    font-weight: 500;
}

.briefing-event-sig {
    font-size: 0.6rem;
    font-weight: 700;
    background: var(--nx-glass);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    color: var(--nx-text-secondary);
}

.briefing-event-summary {
    font-size: 0.88rem;
    line-height: 1.5;
    color: var(--nx-text);
    margin-bottom: 0.35rem;
}

.briefing-event-sources {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.source-badge-link {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    font-size: 0.72rem;
    color: var(--nx-text-secondary);
    text-decoration: none;
    padding: 0.12rem 0.4rem;
    border-radius: 4px;
    background: var(--nx-glass-subtle);
    border: 1px solid var(--nx-border);
    transition: all 0.15s;
}

.source-badge-link:hover {
    background: var(--nx-accent-soft);
    border-color: var(--nx-accent);
    color: var(--nx-accent);
}

.source-badge-link .ext-arrow {
    font-size: 0.6rem;
    opacity: 0.5;
}

/* Convergence / Divergence Callouts */

.convergence-callout, .divergence-callout {
    display: flex;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    margin-top: 0.5rem;
    border-radius: 6px;
    font-size: 0.82rem;
    line-height: 1.5;
}

.convergence-callout {
    background: var(--nx-green-soft);
    border-left: 3px solid var(--nx-green);
}

.divergence-callout {
    background: var(--nx-orange-soft);
    border-left: 3px solid var(--nx-orange);
}

.callout-icon {
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.convergence-callout .callout-icon { color: var(--nx-green); }
.divergence-callout .callout-icon { color: var(--nx-orange); }

.callout-body {
    flex: 1;
}

.callout-label {
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.15rem;
}

.convergence-callout .callout-label { color: var(--nx-green); }
.divergence-callout .callout-label { color: var(--nx-orange); }

.callout-sources {
    display: inline;
    margin-left: 0.3rem;
}

.callout-source-name {
    font-size: 0.72rem;
    color: var(--nx-text-secondary);
    padding: 0.05rem 0.3rem;
    background: var(--nx-glass-subtle);
    border-radius: 3px;
    margin-left: 0.15rem;
}

.callout-side {
    display: block;
    font-size: 0.82rem;
}

.callout-vs {
    display: block;
    font-size: 0.65rem;
    color: var(--nx-text-dim);
    text-transform: uppercase;
    font-weight: 700;
    margin: 0.15rem 0;
}

/* Sidebar */

.sidebar {
    position: sticky;
    top: 80px;
}

.sidebar-section {
    margin-bottom: 1.75rem;
}

.sidebar-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--nx-text-dim);
    margin-bottom: 0.6rem;
}

.sidebar-thread {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--nx-glass-border);
    font-size: 0.85rem;
}

.sidebar-thread a {
    color: var(--nx-text);
    flex: 1;
    margin-right: 0.5rem;
    line-height: 1.3;
}

.sidebar-thread a:hover { color: var(--nx-accent); }

/* Breaking alerts sidebar */
.sidebar-breaking-topic { margin-bottom: 0.5rem; }
.sidebar-breaking-topic-name {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--nx-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.sidebar-breaking-alert {
    display: flex;
    align-items: baseline;
    gap: 0.3rem;
    padding: 0.2rem 0;
    font-size: 0.82rem;
}
.sidebar-breaking-alert a {
    color: var(--nx-text);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sidebar-breaking-alert a:hover { color: var(--nx-accent); }
.sidebar-breaking-score {
    color: var(--nx-accent);
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}

.sidebar-topic {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0;
    font-size: 0.85rem;
    color: var(--nx-text);
}

.sidebar-topic:hover { color: var(--nx-accent); }

.sidebar-topic .topic-count {
    color: var(--nx-text-dim);
    font-size: 0.78rem;
    margin-left: auto;
}

.sidebar-metric {
    display: flex;
    justify-content: space-between;
    padding: 0.3rem 0;
    font-size: 0.82rem;
}

.sidebar-metric-label { color: var(--nx-text-dim); }
.sidebar-metric-value { color: var(--nx-text); font-weight: 500; font-variant-numeric: tabular-nums; }

/* ═══════════════════════════════════════════════════════
   THREAD TRACKER
   ═══════════════════════════════════════════════════════ */

/* Thread List */

.thread-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.thread-card {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: 1rem 1.25rem;
    border-radius: var(--nx-radius-lg);
    border: 1px solid var(--nx-border);
    background: var(--nx-bg-card);
    transition: all var(--nx-transition);
}

.thread-card:hover {
    border-color: var(--nx-border-hover);
    background: var(--nx-bg-hover);
    transform: translateY(-1px);
}

.thread-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.thread-headline {
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.35;
    color: var(--nx-text);
}

.thread-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
}

.thread-card-stats {
    font-size: 0.78rem;
    color: var(--nx-text-dim);
    margin-top: 0.25rem;
}

.thread-card-time {
    font-size: 0.72rem;
    color: var(--nx-text-dim);
    margin-top: 0.25rem;
}

.sidebar-time {
    font-size: 0.65rem;
    color: var(--nx-text-dim);
    white-space: nowrap;
}

.thread-cluster {
    border-left: 3px solid var(--nx-accent);
    padding-left: 0.75rem;
    margin-bottom: 0.5rem;
}

.thread-cluster-label {
    font-size: 0.72rem;
    color: var(--nx-accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.35rem 0;
}

/* Thread Tracker Detail */

.tracker-hero {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--nx-border);
}

.tracker-hero h2 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.tracker-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

.tracker-entities {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.5rem;
}

.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.25rem;
}

.status-dot.active {
    background: var(--nx-green);
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
    animation: pulse 2s infinite;
}

.status-dot.emerging { background: var(--nx-orange); }
.status-dot.stale { background: #95a5a6; }
.status-dot.resolved { background: #7f8c8d; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Analysis Panel (Convergence / Divergence) */

.analysis-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

@media (max-width: 768px) {
    .analysis-panel { grid-template-columns: 1fr; }
}

.analysis-card {
    background: var(--nx-bg-card);
    border-radius: var(--nx-radius-lg);
    border: 1px solid var(--nx-border);
    overflow: hidden;
}

.analysis-card-header {
    padding: 0.7rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.analysis-card.convergence .analysis-card-header {
    background: var(--nx-green-soft);
    color: var(--nx-green);
    border-bottom: 1px solid rgba(16, 185, 129, 0.15);
}

.analysis-card.divergence .analysis-card-header {
    background: var(--nx-orange-soft);
    color: var(--nx-orange);
    border-bottom: 1px solid rgba(245, 158, 11, 0.15);
}

.analysis-card-body {
    padding: 0.75rem 1rem;
}

.analysis-item {
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--nx-glass-border);
}

.analysis-item:last-child { border-bottom: none; }

.analysis-fact {
    font-size: 0.88rem;
    line-height: 1.5;
    margin-bottom: 0.4rem;
}

.analysis-sources {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.source-badge {
    font-size: 0.68rem;
    font-weight: 500;
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    background: var(--nx-accent-soft);
    color: var(--nx-accent);
}

.divergence-vs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.divergence-side {
    padding: 0.6rem;
    border-radius: var(--nx-radius);
    background: var(--nx-glass-faint);
    border: 1px solid var(--nx-border);
}

.divergence-source {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--nx-text-secondary);
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.divergence-framing {
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--nx-text);
    font-style: italic;
}

/* Event Timeline */

.tracker-timeline {
    position: relative;
    padding-left: 2rem;
}

.tracker-timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--nx-border);
}

.timeline-date-marker {
    position: relative;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--nx-text-dim);
    margin: 1.5rem 0 0.75rem -2rem;
    padding-left: 2rem;
}

.timeline-date-marker:first-child { margin-top: 0; }

.tracker-event {
    position: relative;
    margin-bottom: 1rem;
    padding: 1rem 1.25rem;
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    transition: border-color var(--nx-transition);
}

.tracker-event:hover { border-color: var(--nx-border-hover); }

.tracker-event.major {
    border-left: 3px solid var(--nx-red);
}

.tracker-event-dot {
    position: absolute;
    left: -2rem;
    top: 1.2rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--nx-accent);
    border: 2px solid var(--nx-bg);
    transform: translateX(-1px);
}

.tracker-event.major .tracker-event-dot {
    background: var(--nx-red);
    width: 12px;
    height: 12px;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.3);
}

.tracker-event-summary {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.6rem;
}

.tracker-event-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.source-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.72rem;
    font-weight: 500;
    background: var(--nx-bg-hover);
    color: var(--nx-text-secondary);
    border: 1px solid var(--nx-border);
    transition: all var(--nx-transition);
}

.source-link:hover {
    border-color: var(--nx-border-hover);
    color: var(--nx-text);
}

.source-link .ext-icon { font-size: 0.6rem; }

/* ═══════════════════════════════════════════════════════
   EXPLORE (Knowledge Graph)
   ═══════════════════════════════════════════════════════ */

.explore-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.explore-search {
    display: flex;
    gap: 0.5rem;
}

.explore-search input {
    padding: 0.45rem 0.85rem;
    border-radius: var(--nx-radius);
    border: 1px solid var(--nx-border);
    background: var(--nx-bg-raised);
    color: var(--nx-text);
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    width: 240px;
    transition: border-color var(--nx-transition);
}

.explore-search input:focus {
    border-color: var(--nx-accent);
}

.type-filters {
    display: flex;
    gap: 0.3rem;
}

.type-filter {
    padding: 0.3rem 0.65rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--nx-border);
    background: none;
    color: var(--nx-text-secondary);
    cursor: pointer;
    transition: all var(--nx-transition);
    font-family: inherit;
    text-decoration: none;
}

.type-filter:hover, .type-filter.active {
    background: var(--nx-accent-soft);
    border-color: var(--nx-accent);
    color: var(--nx-accent);
}

.explore-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
}

.explore-card {
    display: block;
    padding: 1rem;
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    text-decoration: none;
    color: inherit;
    transition: all var(--nx-transition);
}

.explore-card:hover {
    border-color: var(--nx-border-hover);
    transform: translateY(-1px);
}

.explore-card-name {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.35rem;
    color: var(--nx-text);
}

.explore-card-type {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}

.explore-card-type.person { color: var(--nx-blue); }
.explore-card-type.org { color: var(--nx-accent); }
.explore-card-type.country { color: var(--nx-green); }
.explore-card-type.concept { color: var(--nx-orange); }
.explore-card-type.treaty { color: #a855f7; }
.explore-card-type.unknown { color: var(--nx-text-dim); }

.explore-card-top {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.5rem;
}

.explore-card-stats {
    font-size: 0.78rem;
    color: var(--nx-text-dim);
}

/* Entity Avatars */

.entity-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.entity-avatar-lg {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.entity-initial {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
    color: var(--nx-text);
}

.entity-initial-lg {
    width: 64px;
    height: 64px;
    font-size: 1.4rem;
}

.entity-initial.person { background: var(--nx-blue-soft); color: var(--nx-blue); }
.entity-initial.org { background: var(--nx-accent-soft); color: var(--nx-accent); }
.entity-initial.country { background: var(--nx-green-soft); color: var(--nx-green); }
.entity-initial.concept { background: var(--nx-orange-soft); color: var(--nx-orange); }
.entity-initial.treaty { background: rgba(168, 85, 247, 0.12); color: #a855f7; }
.entity-initial.unknown { background: var(--nx-glass-subtle); }

/* Entity Detail */

.entity-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 2.5rem;
    align-items: start;
}

@media (max-width: 900px) {
    .entity-layout { grid-template-columns: 1fr; }
}

.entity-header {
    margin-bottom: 2rem;
}

.entity-header h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.entity-aliases {
    color: var(--nx-text-dim);
    font-size: 0.85rem;
}

/* SVG Graph */

.graph-container {
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.graph-container svg {
    width: 100%;
    height: auto;
    display: block;
}

.graph-node { cursor: pointer; }
.graph-node circle { transition: fill var(--nx-transition); }
.graph-node:hover circle { fill: var(--nx-accent); }
.graph-node text {
    fill: var(--nx-text);
    font-family: var(--nx-font);
    font-size: 11px;
    font-weight: 500;
}
.graph-center text {
    font-size: 13px;
    font-weight: 700;
}
.graph-edge { stroke: var(--nx-border-hover); }

/* ── Interactive Graph (D3) — HUD Style ── */

.graph-page {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 56px);
    background: #0a0a12;
}

/* HUD top bar */
.graph-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.2rem;
    background: rgba(10, 10, 18, 0.92);
    border-bottom: 1px solid rgba(234, 179, 56, 0.1);
    backdrop-filter: blur(8px);
    flex-shrink: 0;
    z-index: 5;
}

.graph-hud-left {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.graph-hud-back {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.7rem;
    color: rgba(148, 163, 184, 0.6);
    text-decoration: none;
    padding: 0.2rem 0.5rem;
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: 3px;
    letter-spacing: 0.04em;
    transition: color 0.15s, border-color 0.15s;
}
.graph-hud-back:hover {
    color: rgba(56, 189, 248, 0.8);
    border-color: rgba(56, 189, 248, 0.3);
}

.graph-hud-title {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(234, 179, 56, 0.45);
}

.graph-hud-stat {
    font-family: 'Share Tech Mono', monospace;
    font-size: 1.05rem;
    font-weight: 400;
    color: rgba(234, 179, 56, 0.8);
    font-variant-numeric: tabular-nums;
}

.graph-hud-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(148, 163, 184, 0.4);
}

.graph-hud-right {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

/* Type filter pills */
.graph-hud-filters {
    display: flex;
    gap: 0.35rem;
}

.graph-type-pill {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.55rem;
    border-radius: 3px;
    border: 1px solid rgba(148, 163, 184, 0.1);
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: rgba(148, 163, 184, 0.4);
    cursor: pointer;
    transition: all 0.15s;
    user-select: none;
}
.graph-type-pill input[type="checkbox"] { display: none; }

.graph-type-pill:has(input:checked) {
    color: rgba(226, 232, 240, 0.9);
}

.person-pill:has(input:checked) { background: rgba(234, 179, 56, 0.08); border-color: rgba(234, 179, 56, 0.3); color: rgba(234, 179, 56, 0.9); }
.org-pill:has(input:checked) { background: rgba(190, 60, 50, 0.08); border-color: rgba(190, 60, 50, 0.3); color: rgba(190, 60, 50, 0.9); }
.country-pill:has(input:checked) { background: rgba(200, 185, 155, 0.08); border-color: rgba(200, 185, 155, 0.3); color: rgba(200, 185, 155, 0.9); }
.concept-pill:has(input:checked) { background: rgba(210, 130, 50, 0.08); border-color: rgba(210, 130, 50, 0.3); color: rgba(210, 130, 50, 0.9); }

/* Density slider */
.graph-hud-slider {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.graph-hud-slider input[type="range"] {
    width: 80px;
    height: 3px;
    accent-color: var(--nx-accent);
    background: var(--nx-glass);
    border-radius: 2px;
    appearance: none;
    -webkit-appearance: none;
}
.graph-hud-slider input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--nx-accent);
    cursor: pointer;
}

/* Canvas */
.graph-canvas-wrapper {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #0a0a12;
}

#graph-svg {
    width: 100%;
    height: 100%;
    background: transparent;
}

/* Subtle grid overlay */
.graph-grid-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(234, 179, 56, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(234, 179, 56, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 70%);
}

/* Side panel */

.entity-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 340px;
    height: 100%;
    background: rgba(12, 12, 22, 0.95);
    border-left: 1px solid rgba(234, 179, 56, 0.1);
    backdrop-filter: blur(12px);
    overflow-y: auto;
    padding: 1rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    box-shadow: -8px 0 32px rgba(0,0,0,0.4);
}

.entity-panel.hidden {
    transform: translateX(100%);
    box-shadow: none;
}

.panel-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    color: var(--nx-text-dim);
    font-size: 1.3rem;
    cursor: pointer;
    line-height: 1;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
}

.panel-close:hover {
    color: var(--nx-text);
    background: var(--nx-glass);
}

.panel-section {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--nx-border);
}

.panel-section-title {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--nx-text-dim);
    margin-bottom: 0.5rem;
}

.panel-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.3rem 0;
    font-size: 0.82rem;
    color: var(--nx-text);
    text-decoration: none;
    gap: 0.4rem;
}

.panel-link:hover { color: var(--nx-accent); }

.panel-event {
    padding: 0.3rem 0;
    border-bottom: 1px solid var(--nx-border);
}

.panel-event:last-child { border-bottom: none; }

.panel-event-date {
    font-size: 0.68rem;
    color: var(--nx-text-dim);
    display: block;
}

.panel-event-summary {
    font-size: 0.78rem;
    color: var(--nx-text);
    line-height: 1.4;
}

/* ═══════════════════════════════════════════════════════
   SHARED COMPONENTS
   ═══════════════════════════════════════════════════════ */

/* Section header with link */

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.75rem;
}

.section-header h3 { margin-bottom: 0; }

.section-link {
    font-size: 0.82rem;
    color: var(--nx-text-dim);
}

.section-link:hover { color: var(--nx-accent); }

/* Topic cards */

.topic-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.25rem;
    border-radius: var(--nx-radius);
    text-decoration: none;
    color: inherit;
    transition: background var(--nx-transition);
}

.topic-card:hover { background: var(--nx-bg-hover); }

.topic-emoji { font-size: 1.3rem; flex-shrink: 0; }

.topic-info { display: flex; flex-direction: column; }

.topic-name { font-weight: 600; font-size: 0.9rem; color: var(--nx-text); }

.topic-meta { font-size: 0.78rem; color: var(--nx-text-dim); }

/* Event cards (used in event list, entity detail, etc.) */

.event-card {
    display: block;
    padding: 0.85rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: var(--nx-radius);
    border: 1px solid var(--nx-border);
    background: var(--nx-bg-card);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--nx-transition);
}

.event-card:hover { border-color: var(--nx-border-hover); }

.event-card-date {
    font-size: 0.72rem;
    color: var(--nx-text-dim);
    margin-bottom: 0.3rem;
}

.event-card-summary {
    font-size: 0.88rem;
    line-height: 1.5;
    margin-bottom: 0.4rem;
}

.event-card-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    align-items: center;
}

/* Tables (for source stats, cost, filter log, etc.) */

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 2px solid var(--nx-border);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--nx-text-dim);
}

.data-table td {
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--nx-glass-border);
    color: var(--nx-text);
}

.data-table tbody tr:hover {
    background: var(--nx-glass-faint);
}

.data-table .num {
    font-variant-numeric: tabular-nums;
    text-align: right;
}

/* Filter log rows */
.filter-accepted td { background: rgba(16, 185, 129, 0.04); }
.filter-rejected_relevance td,
.filter-rejected_significance td,
.filter-rejected_diversity td { background: rgba(239, 68, 68, 0.03); }

/* Empty state */

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--nx-text-dim);
}

.empty-state h3 {
    color: var(--nx-text);
    margin-bottom: 0.5rem;
}

.empty-state code {
    display: inline-block;
    margin-top: 0.75rem;
    padding: 0.5rem 1.5rem;
    background: var(--nx-bg-raised);
    border-radius: var(--nx-radius);
    font-size: 0.85rem;
}

/* ── Cost & Settings ── */

.cost-hero {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--nx-accent);
    margin-bottom: 0.25rem;
    font-variant-numeric: tabular-nums;
}

.settings-provider {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--nx-border);
}

.settings-provider:last-child { border-bottom: none; }

/* ── Page content (markdown rendered pages) ── */

.page-content {
    line-height: 1.8;
    font-size: 0.92rem;
}

.page-content h2, .page-content h3 {
    margin-top: 1.5rem;
}

.page-content p { margin-bottom: 1rem; }

.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.85rem;
}

.page-content table th,
.page-content table td {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--nx-border);
    text-align: left;
}

/* ── Footer ── */

.site-footer {
    border-top: 1px solid var(--nx-border);
    padding: 1.5rem;
    margin-top: auto;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    color: var(--nx-text-dim);
}

.footer-brand { font-weight: 600; }

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    color: var(--nx-text-dim);
    transition: color var(--nx-transition);
}

.footer-links a:hover { color: var(--nx-text-secondary); }

/* ═══════════════════════════════════════════════════════
   SETUP WIZARD & FORMS
   ═══════════════════════════════════════════════════════ */

.setup-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.setup-container {
    width: 100%;
    max-width: 640px;
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    padding: 2.5rem;
}

.setup-header {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.setup-subtitle {
    font-size: 0.85rem;
    color: var(--nx-text-dim);
}

.setup-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 2rem;
}

.setup-step-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 600;
    border: 2px solid var(--nx-border);
    color: var(--nx-text-dim);
    flex-shrink: 0;
}

.setup-step-dot.active {
    border-color: var(--nx-accent);
    color: var(--nx-accent);
    background: var(--nx-accent-soft);
}

.setup-step-dot.done {
    border-color: var(--nx-green);
    color: var(--nx-green);
    background: var(--nx-green-soft);
}

.setup-step-line {
    width: 24px;
    height: 2px;
    background: var(--nx-border);
    flex-shrink: 0;
}

.setup-step-line.done { background: var(--nx-green); }

.setup-desc {
    color: var(--nx-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.setup-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--nx-border);
}

/* Preset cards */

.preset-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.preset-card {
    display: block;
    cursor: pointer;
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    padding: 0.85rem 1rem;
    transition: all var(--nx-transition);
    background: var(--nx-bg-raised);
}

.preset-card:hover {
    border-color: var(--nx-border-hover);
    background: var(--nx-bg-hover);
}

.preset-card.selected,
.preset-card:has(input:checked) {
    border-color: var(--nx-accent);
    background: var(--nx-accent-soft);
}

.preset-card input[type="radio"] { display: none; }

.preset-card-inner {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.preset-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--nx-text);
}

.preset-desc {
    font-size: 0.78rem;
    color: var(--nx-text-dim);
}

.preset-badge {
    display: inline-block;
    margin-top: 0.25rem;
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    width: fit-content;
}

.badge-free {
    background: var(--nx-green-soft);
    color: var(--nx-green);
}

/* Tier selector (provider setup) */

.tier-options {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tier-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    padding: 0.6rem 1rem;
    background: var(--nx-bg-raised);
    transition: all var(--nx-transition);
    font-size: 0.85rem;
}

.tier-option:hover {
    border-color: var(--nx-border-hover);
    background: var(--nx-bg-hover);
}

.tier-option.selected {
    border-color: var(--nx-accent);
    background: var(--nx-accent-soft);
}

.tier-option input[type="radio"] { display: none; }

/* Topic selection cards */

.topic-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.setup-page .topic-card {
    display: block;
    cursor: pointer;
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    padding: 0.85rem 1rem;
    transition: all var(--nx-transition);
    background: var(--nx-bg-raised);
    margin-bottom: 0;
}

.setup-page .topic-card:hover {
    border-color: var(--nx-border-hover);
    background: var(--nx-bg-hover);
}

.setup-page .topic-card:has(input:checked) {
    border-color: var(--nx-accent);
    background: var(--nx-accent-soft);
}

.setup-page .topic-card input[type="checkbox"] { display: none; }

.topic-card-inner .topic-name {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--nx-text);
}

/* Form elements */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--nx-text);
    margin-bottom: 0.4rem;
}

.form-input, .form-select {
    width: 100%;
    padding: 0.6rem 0.85rem;
    background: var(--nx-bg);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    color: var(--nx-text);
    font-family: var(--nx-font);
    font-size: 0.88rem;
    transition: border-color var(--nx-transition);
    outline: none;
}

.form-input:focus, .form-select:focus {
    border-color: var(--nx-accent);
}

.form-input::placeholder {
    color: var(--nx-text-dim);
}

.form-select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238a8a9a' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
}

.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--nx-text-dim);
    margin-top: 0.35rem;
    line-height: 1.4;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Buttons */

.btn-primary {
    padding: 0.6rem 1.5rem;
    background: var(--nx-accent);
    color: #fff;
    border: none;
    border-radius: var(--nx-radius);
    font-family: var(--nx-font);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--nx-transition);
}

.btn-primary:hover { background: var(--nx-accent-light); }

.btn-primary.btn-lg { padding: 0.75rem 2rem; font-size: 1rem; }

.btn-secondary {
    padding: 0.6rem 1.25rem;
    background: transparent;
    color: var(--nx-text-secondary);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    font-family: var(--nx-font);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--nx-transition);
}

.btn-secondary:hover {
    border-color: var(--nx-border-hover);
    color: var(--nx-text);
}

.btn-skip {
    padding: 0.6rem 1.25rem;
    background: transparent;
    color: var(--nx-text-dim);
    border: none;
    font-family: var(--nx-font);
    font-size: 0.82rem;
    cursor: pointer;
    transition: color var(--nx-transition);
}

.btn-skip:hover { color: var(--nx-text-secondary); }

/* Review card */

.review-card {
    background: var(--nx-bg-raised);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    overflow: hidden;
}

.review-section {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--nx-border);
    gap: 0.75rem;
}

.review-section:last-child { border-bottom: none; }

.review-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--nx-text-dim);
    min-width: 100px;
    flex-shrink: 0;
}

.review-value {
    font-size: 0.88rem;
    color: var(--nx-text);
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.review-tag {
    background: var(--nx-accent-soft);
    color: var(--nx-accent);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 500;
}

.review-edit {
    font-size: 0.75rem;
    color: var(--nx-text-dim);
    flex-shrink: 0;
}

/* Alert messages */

.alert-error {
    background: var(--nx-red-soft);
    color: var(--nx-red);
    padding: 0.65rem 1rem;
    border-radius: var(--nx-radius);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-success {
    background: var(--nx-green-soft);
    color: var(--nx-green);
    padding: 0.65rem 1rem;
    border-radius: var(--nx-radius);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-info {
    background: var(--nx-accent-soft);
    color: var(--nx-accent);
    padding: 0.65rem 1rem;
    border-radius: var(--nx-radius);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

/* Pipeline status bar */

.pipeline-status {
    padding: 0.75rem 1.5rem;
    font-size: 0.88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pipeline-running {
    background: var(--nx-accent-soft);
    color: var(--nx-accent);
    border-bottom: 1px solid rgba(99, 102, 241, 0.15);
}

.pipeline-done {
    background: var(--nx-green-soft);
    color: var(--nx-green);
    border-bottom: 1px solid rgba(16, 185, 129, 0.15);
}

.pipeline-error {
    background: var(--nx-red-soft);
    color: var(--nx-red);
    border-bottom: 1px solid rgba(239, 68, 68, 0.15);
}

.pipeline-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--nx-accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Settings sections (accordion) */

.settings-section {
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.settings-section-header {
    padding: 0.85rem 1.25rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--nx-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--nx-transition);
}

.settings-section-header:hover { background: var(--nx-bg-hover); }

.settings-section-body {
    padding: 0 1.25rem 1.25rem;
}

.restart-banner {
    background: var(--nx-orange-soft);
    color: var(--nx-orange);
    padding: 0.65rem 1rem;
    border-radius: var(--nx-radius);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Demo mode badge */

.demo-badge {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    background: var(--nx-orange-soft);
    color: var(--nx-orange);
    margin-left: 0.5rem;
}

/* ═══════════════════════════════════════════════════════
   CHAT WIDGET
   ═══════════════════════════════════════════════════════ */

.chat-widget {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 200;
}

.chat-toggle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--nx-accent);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    transition: all var(--nx-transition);
}

.chat-toggle:hover {
    background: var(--nx-accent-light);
    transform: scale(1.05);
}

.chat-panel {
    position: absolute;
    bottom: 60px;
    right: 0;
    width: 360px;
    max-height: 480px;
    background: var(--nx-bg-card);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.chat-panel.hidden { display: none; }

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--nx-border);
    font-weight: 600;
    font-size: 0.9rem;
}

.chat-remaining {
    font-size: 0.72rem;
    color: var(--nx-text-dim);
    font-weight: 400;
}

.chat-close {
    background: none;
    border: none;
    color: var(--nx-text-dim);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 0.25rem;
}

.chat-close:hover { color: var(--nx-text); }

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
    min-height: 200px;
    max-height: 340px;
}

.chat-msg {
    margin-bottom: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--nx-radius);
    font-size: 0.85rem;
    line-height: 1.5;
    max-width: 85%;
    word-wrap: break-word;
}

.chat-msg-user {
    background: var(--nx-accent-soft);
    color: var(--nx-text);
    margin-left: auto;
}

.chat-msg-bot {
    background: var(--nx-bg-raised);
    color: var(--nx-text);
    border: 1px solid var(--nx-border);
}

.chat-msg-error {
    background: var(--nx-red-soft);
    color: var(--nx-red);
    font-size: 0.78rem;
}

.chat-input-area {
    display: flex;
    gap: 0.5rem;
    padding: 0.65rem;
    border-top: 1px solid var(--nx-border);
}

.chat-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background: var(--nx-bg);
    border: 1px solid var(--nx-border);
    border-radius: var(--nx-radius);
    color: var(--nx-text);
    font-family: var(--nx-font);
    font-size: 0.85rem;
    outline: none;
}

.chat-input:focus { border-color: var(--nx-accent); }

.chat-send {
    padding: 0.5rem 0.85rem;
    background: var(--nx-accent);
    color: #fff;
    border: none;
    border-radius: var(--nx-radius);
    font-family: var(--nx-font);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--nx-transition);
}

.chat-send:hover { background: var(--nx-accent-light); }

/* ── Responsive ── */

@media (max-width: 600px) {
    .main-content { padding: 1rem; }
    .analysis-panel { grid-template-columns: 1fr; }
    .entity-layout { grid-template-columns: 1fr; }
    .explore-grid { grid-template-columns: 1fr; }
    .divergence-vs { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; gap: 0.5rem; }
    .setup-container { padding: 1.5rem; }
    .topic-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .chat-panel { width: calc(100vw - 2rem); right: -0.5rem; }
}