/* Physical AI Capital Flow Map - lab-specific styles
   Inherits /css/style.css (navy gradient body, fixed header, footer).
   Adapts the mockup's editorial composition (numbered sections, chasm bars,
   scatter plot, flow panels, defense timeline, sub-sector grid) to the
   canonical.cc system: navy gradient background, Aeonik display type,
   white paper cards with slate ink. */

:root {
    --pai-navy: #1e3a8a;
    --pai-navy-deep: #162456;
    --pai-accent: #f97316;       /* orange-500, brighter for navy bg */
    --pai-accent-soft: #fdba74;
    --pai-positive: #34d399;     /* emerald-400 */
    --pai-negative: #fca5a5;     /* red-300 */
    --pai-on-navy-faint: rgba(255, 255, 255, 0.55);
    --pai-on-navy-soft: rgba(255, 255, 255, 0.75);
    --pai-on-navy-strong: rgba(255, 255, 255, 0.92);
    --pai-card-bg: #ffffff;
    --pai-card-bg-2: #fafafa;
    --pai-ink: #0a0a0a;
    --pai-ink-soft: #1f2937;     /* slate-800 */
    --pai-ink-muted: #475569;    /* slate-600 */
    --pai-ink-faint: #94a3b8;    /* slate-400 */
    --pai-rule: rgba(15, 23, 42, 0.08);
    --pai-rule-strong: rgba(15, 23, 42, 0.16);
    --pai-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ============ TYPOGRAPHY UTILITIES ============ */
.pai-mono { font-family: var(--pai-mono); }

/* ============ HERO ============ */
.pai-hero {
    padding: 8rem 0 3rem;
    text-align: left;
}

.pai-hero-content {
    max-width: 1100px;
    margin: 0 auto;
}

.pai-eyebrow {
    display: inline-block;
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    color: var(--pai-accent-soft);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.pai-title {
    font-size: clamp(2.5rem, 6.5vw, 5.2rem);
    font-weight: 300;
    line-height: 1.05;
    letter-spacing: -0.025em;
    color: #ffffff;
    max-width: 22ch;
    margin: 0 0 1.5rem;
}

.pai-title em {
    font-style: normal;
    color: var(--pai-accent-soft);
    font-weight: 400;
}

.pai-subtitle {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    font-weight: 400;
    line-height: 1.6;
    color: var(--pai-on-navy-soft);
    max-width: 58ch;
    margin: 0 0 2.5rem;
}

.pai-meta {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    max-width: 64rem;
}

.pai-meta-item { display: flex; flex-direction: column; gap: 0.25rem; }
.pai-meta-key {
    font-family: var(--pai-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--pai-on-navy-faint);
    text-transform: uppercase;
}
.pai-meta-val {
    font-family: var(--pai-mono);
    font-size: 0.78rem;
    color: var(--pai-on-navy-strong);
    line-height: 1.4;
}

/* ============ TLDR STRIP ============ */
.pai-tldr {
    padding: 3.5rem 0;
    background: rgba(255, 255, 255, 0.04);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(4px);
}
.pai-tldr-intro {
    font-family: var(--pai-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pai-on-navy-faint);
    margin-bottom: 1.75rem;
    text-align: center;
}
.pai-tldr-item {
    cursor: help;
    transition: transform 0.15s;
    padding: 0.5rem 0.25rem;
    border-radius: 0.4rem;
}
.pai-tldr-item:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.03);
}
.pai-tldr-item:focus { outline: 1px dashed rgba(255, 255, 255, 0.4); outline-offset: 4px; }

.pai-term {
    border-bottom: 1px dotted rgba(253, 186, 116, 0.55);
    cursor: help;
    transition: border-color 0.15s;
}
.pai-term:hover { border-bottom-color: var(--pai-accent); }

.pai-explorer-hint {
    font-size: 0.85rem;
    color: var(--pai-on-navy-faint);
    margin: -0.5rem 0 1.8rem;
    line-height: 1.55;
    max-width: 75ch;
}

.pai-filter-label[data-term] { cursor: help; }
.pai-filter-label[data-term]:hover { color: var(--pai-on-navy-strong); }
.pai-chip[data-explain] { cursor: help; }

.pai-tldr-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
}

.pai-stat {
    font-size: 3rem;
    font-weight: 300;
    color: #ffffff;
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 0.7rem;
}

.pai-stat-unit {
    font-size: 1.5rem;
    color: var(--pai-on-navy-soft);
    font-weight: 300;
    margin-left: 0.1em;
}

.pai-tldr-label {
    font-size: 0.92rem;
    line-height: 1.5;
    color: var(--pai-on-navy-soft);
}

.pai-tldr-label strong {
    color: #ffffff;
    font-weight: 500;
}

/* ============ SUB-NAV ============ */
.pai-subnav {
    position: sticky;
    top: 72px;  /* under main canonical.cc fixed header */
    z-index: 40;
    background: rgba(30, 58, 138, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.65rem 0;
}

.pai-subnav-list {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.pai-subnav-list::-webkit-scrollbar { display: none; }

.pai-subnav-list li { flex: 0 0 auto; }

.pai-subnav-list a {
    display: inline-block;
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--pai-on-navy-soft);
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
    white-space: nowrap;
}

.pai-subnav-list a:hover { background: rgba(255, 255, 255, 0.08); color: #ffffff; }
.pai-subnav-list a.active { background: rgba(255, 255, 255, 0.12); color: #ffffff; }

/* ============ SCENE SECTION BASE ============ */
.pai-scene {
    padding: 6rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    scroll-margin-top: 130px;
}

#explorer, #methodology, #map {
    scroll-margin-top: 130px;
}

.pai-scene-grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 4rem;
    align-items: start;
}

.pai-scene-grid.pai-flip { grid-template-columns: 7fr 5fr; }

.pai-section-label {
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    color: var(--pai-accent-soft);
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 1.25rem;
}
.pai-section-num {
    color: var(--pai-on-navy-faint);
    margin-right: 0.4rem;
}

.pai-scene-text { padding-top: 0.5rem; }

.pai-scene-h2 {
    font-size: clamp(1.85rem, 3.4vw, 2.85rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 300;
    color: #ffffff;
    margin: 0 0 1.4rem;
}

.pai-scene-h2 em {
    font-style: normal;
    color: var(--pai-accent-soft);
    font-weight: 400;
}

.pai-lede {
    font-size: 1rem;
    line-height: 1.65;
    color: var(--pai-on-navy-soft);
    margin: 0 0 1.25rem;
}
.pai-lede-small { font-size: 0.92rem; color: var(--pai-on-navy-faint); }

.pai-pov {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.pai-pov-label {
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--pai-accent);
    text-transform: uppercase;
    margin-bottom: 0.7rem;
}
.pai-pov p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--pai-on-navy-strong);
    font-style: normal;
    margin: 0;
}

/* ============ VIZ CARD CONTAINER ============ */
.pai-viz {
    background: var(--pai-card-bg);
    border-radius: 0.75rem;
    padding: 1.75rem;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.1);
    color: var(--pai-ink);
}
.pai-viz-title {
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--pai-ink-muted);
    margin-bottom: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.pai-viz-source { color: var(--pai-ink-faint); font-size: 0.65rem; }

/* ============ CHASM CHART ============ */
.pai-chasm-bars {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.pai-chasm-row {
    display: grid;
    grid-template-columns: 11rem 1fr 4.5rem;
    gap: 1rem;
    align-items: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: transform 0.15s;
}
.pai-chasm-row:hover { transform: translateX(2px); }
.pai-chasm-row .pai-chasm-name {
    color: var(--pai-ink-soft);
    font-weight: 500;
    line-height: 1.3;
}
.pai-chasm-row .pai-chasm-sub {
    display: block;
    font-size: 0.7rem;
    color: var(--pai-ink-faint);
    font-weight: 400;
    margin-top: 0.15rem;
    font-family: var(--pai-mono);
}
.pai-chasm-bar {
    height: 24px;
    background: rgba(15, 23, 42, 0.08);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}
.pai-chasm-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--pai-navy) 0%, var(--pai-navy-deep) 100%);
    border-radius: 2px;
    transition: width 0.9s cubic-bezier(.2,.8,.2,1);
}
.pai-chasm-row.pai-tail .pai-chasm-fill {
    background: rgba(148, 163, 184, 0.85);  /* slate-400 */
}
.pai-chasm-val {
    font-family: var(--pai-mono);
    font-size: 0.85rem;
    color: var(--pai-ink);
    text-align: right;
    font-weight: 500;
}
.pai-chasm-divider {
    margin: 0.6rem 0;
    padding-top: 0.7rem;
    border-top: 1px dashed var(--pai-rule-strong);
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    color: var(--pai-ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.pai-chasm-summary {
    margin-top: 1.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--pai-rule);
    font-family: var(--pai-mono);
    font-size: 0.8rem;
    color: var(--pai-ink-muted);
    display: flex;
    align-items: baseline;
    gap: 0.8rem;
}
.pai-chasm-summary strong {
    font-size: 1.6rem;
    color: var(--pai-accent);
    font-weight: 500;
    font-style: normal;
    line-height: 1;
}

/* ============ VELOCITY SCATTER ============ */
.pai-velocity {
    position: relative;
    aspect-ratio: 1.45 / 1;
    margin-top: 0.5rem;
}
.pai-velocity svg { width: 100%; height: 100%; display: block; overflow: visible; }

.pai-velocity .pai-axis-line { stroke: rgba(15, 23, 42, 0.2); stroke-width: 1; }
.pai-velocity .pai-grid-line { stroke: rgba(15, 23, 42, 0.06); stroke-width: 1; }
.pai-velocity .pai-bubble-zone { fill: rgba(249, 115, 22, 0.06); }
.pai-velocity .pai-bubble-zone-label {
    font-family: var(--pai-mono); font-size: 9px; fill: var(--pai-accent);
    letter-spacing: 0.15em;
}
.pai-velocity .pai-axis-text {
    font-family: var(--pai-mono); font-size: 10px; fill: var(--pai-ink-faint);
}
.pai-velocity .pai-axis-title {
    font-family: var(--pai-mono); font-size: 9.5px; fill: var(--pai-ink-muted);
    letter-spacing: 0.18em;
}

.pai-velocity .pai-point {
    cursor: pointer;
    transition: r 0.15s, stroke-width 0.15s, filter 0.15s;
}
.pai-velocity .pai-point:hover {
    stroke-width: 3;
    filter: drop-shadow(0 0 8px rgba(249, 115, 22, 0.45));
}
.pai-velocity .pai-point-bubble { fill: var(--pai-accent); }
.pai-velocity .pai-point-elevated { fill: var(--pai-navy); }
.pai-velocity .pai-point-justified { fill: #15803d; }
.pai-velocity .pai-point-label {
    font-family: 'Aeonik Regular', system-ui, sans-serif;
    font-size: 11px; font-weight: 500; fill: var(--pai-ink-soft);
    pointer-events: none;
}
.pai-velocity .pai-point-sub {
    font-family: var(--pai-mono); font-size: 9px; fill: var(--pai-ink-muted);
    pointer-events: none;
}

.pai-velocity-fallback {
    display: none;
    flex-direction: column;
    gap: 0.6rem;
    margin-top: 0.5rem;
}
.pai-velocity-fallback .pai-vf-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 0.75rem;
    align-items: center;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--pai-rule);
    border-radius: 0.4rem;
    background: var(--pai-card-bg-2);
}
.pai-velocity-fallback .pai-vf-name { font-weight: 500; color: var(--pai-ink); font-size: 0.85rem; }
.pai-velocity-fallback .pai-vf-meta { font-family: var(--pai-mono); font-size: 0.72rem; color: var(--pai-ink-muted); }
.pai-velocity-fallback .pai-vf-mult { font-family: var(--pai-mono); font-size: 0.95rem; font-weight: 600; }
.pai-velocity-fallback .pai-vf-bubble { color: var(--pai-accent); }
.pai-velocity-fallback .pai-vf-elevated { color: var(--pai-navy); }
.pai-velocity-fallback .pai-vf-justified { color: #15803d; }

.pai-velocity-legend {
    display: flex;
    align-items: center;
    gap: 1.3rem;
    flex-wrap: wrap;
    margin-top: 1.2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--pai-rule);
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    color: var(--pai-ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.pai-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 0.35rem;
    vertical-align: middle;
    margin-left: 0.5rem;
}
.pai-velocity-legend > :first-child { margin-left: 0; }
.pai-dot-bubble { background: var(--pai-accent); }
.pai-dot-elevated { background: var(--pai-navy); }
.pai-dot-justified { background: #15803d; }

/* ============ FLOW PANELS (Scene 3) ============ */
.pai-flow-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.pai-flow-panel {
    background: var(--pai-card-bg);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.1);
    color: var(--pai-ink);
    display: flex;
    flex-direction: column;
}

.pai-flow-head {
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.5rem;
}
.pai-flow-us .pai-flow-head { color: var(--pai-navy); }
.pai-flow-china .pai-flow-head { color: var(--pai-accent); }

.pai-flow-title {
    font-size: 1.05rem;
    line-height: 1.3;
    margin-bottom: 1.1rem;
    color: var(--pai-ink);
    font-weight: 500;
}

.pai-flow-rows {
    font-size: 0.85rem;
    line-height: 1.6;
    flex-grow: 1;
}

.pai-flow-row {
    display: flex;
    gap: 0.7rem;
    padding: 0.55rem 0;
    border-top: 1px solid var(--pai-rule);
    align-items: baseline;
}
.pai-flow-row:first-child { border-top: none; padding-top: 0; }
.pai-flow-actor { color: var(--pai-ink-muted); font-weight: 500; flex: 1; }
.pai-flow-arrow { color: var(--pai-ink-faint); font-family: var(--pai-mono); font-size: 0.75rem; }
.pai-flow-target { color: var(--pai-ink); font-weight: 600; flex: 1; text-align: right; }

.pai-flow-exit {
    margin-top: 1.1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--pai-rule);
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    color: var(--pai-ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}
.pai-flow-us .pai-flow-exit strong { color: var(--pai-navy); }
.pai-flow-china .pai-flow-exit strong { color: var(--pai-accent); }

/* ============ DEFENSE TIMELINE ============ */
.pai-defense-chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.pai-defense-chart .pai-d-year-axis { stroke: rgba(15, 23, 42, 0.2); stroke-width: 1; }
.pai-defense-chart .pai-d-year-tick { stroke: rgba(15, 23, 42, 0.1); stroke-width: 1; stroke-dasharray: 2, 3; }
.pai-defense-chart .pai-d-year-text {
    font-family: var(--pai-mono); font-size: 10px; fill: var(--pai-ink-muted);
}
.pai-defense-chart .pai-d-baseline {
    font-family: var(--pai-mono); font-size: 9px; letter-spacing: 0.18em;
}
.pai-defense-chart .pai-d-line { stroke: rgba(30, 58, 138, 0.25); stroke-width: 1; }
.pai-defense-chart .pai-d-dot { transition: r 0.15s, filter 0.15s; cursor: pointer; }
.pai-defense-chart .pai-d-dot:hover { filter: drop-shadow(0 0 6px rgba(249, 115, 22, 0.5)); }
.pai-defense-chart .pai-d-name {
    font-family: 'Aeonik Regular', system-ui, sans-serif;
    font-size: 12px; font-weight: 500; fill: var(--pai-ink-soft);
    pointer-events: none;
}
.pai-defense-chart .pai-d-val {
    font-family: var(--pai-mono); font-size: 11px; font-weight: 600;
    pointer-events: none;
}
.pai-defense-chart .pai-d-meta {
    font-family: var(--pai-mono); font-size: 9px; fill: var(--pai-ink-muted);
    pointer-events: none;
}

/* ============ EXPLORER ============ */
.pai-explorer-section { padding: 6rem 0 5rem; }

.pai-h2-explorer {
    max-width: 32ch;
    margin-bottom: 1rem !important;
}

.pai-explorer-intro {
    font-size: 1rem;
    color: var(--pai-on-navy-soft);
    max-width: 60ch;
    line-height: 1.5;
    margin-bottom: 2.5rem;
}

.pai-explorer-bar {
    display: flex;
    gap: 1.25rem 2rem;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.pai-filter-group { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.pai-filter-label {
    font-family: var(--pai-mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--pai-on-navy-faint);
    margin-right: 0.2rem;
}

.pai-chip-row { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.pai-chip {
    font-family: var(--pai-mono);
    font-size: 0.75rem;
    padding: 0.4rem 0.85rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--pai-on-navy-soft);
    cursor: pointer;
    border-radius: 100px;
    transition: all 0.15s;
    text-transform: capitalize;
    letter-spacing: 0.02em;
}
.pai-chip:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}
.pai-chip.active {
    background: #ffffff;
    color: var(--pai-navy);
    border-color: #ffffff;
    font-weight: 500;
}

.pai-filter-meta {
    margin-left: auto;
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    color: var(--pai-on-navy-faint);
    letter-spacing: 0.05em;
}

.pai-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.pai-card {
    background: var(--pai-card-bg);
    border-radius: 0.6rem;
    padding: 1.4rem 1.3rem;
    transition: transform 0.18s, box-shadow 0.18s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    color: var(--pai-ink);
    box-shadow: 0 8px 24px -10px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.08);
    min-height: 220px;
    border: 1px solid transparent;
}
.pai-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px -12px rgba(0, 0, 0, 0.45), 0 4px 12px rgba(0, 0, 0, 0.15);
    border-color: rgba(249, 115, 22, 0.3);
}
.pai-card-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}
.pai-card .pai-card-num {
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    color: var(--pai-ink-faint);
    letter-spacing: 0.1em;
}
.pai-card .pai-card-layer {
    font-family: var(--pai-mono);
    font-size: 0.62rem;
    color: var(--pai-navy);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    background: rgba(30, 58, 138, 0.08);
    padding: 0.2rem 0.5rem;
    border-radius: 100px;
}
.pai-card h3 {
    font-size: 1.2rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
    font-weight: 500;
    color: var(--pai-ink);
    margin: 0;
}
.pai-card-stats {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
    margin-top: 0.2rem;
}
.pai-card-stat-k {
    font-family: var(--pai-mono);
    font-size: 0.6rem;
    color: var(--pai-ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.15rem;
}
.pai-card-stat-v {
    font-family: var(--pai-mono);
    font-size: 0.95rem;
    color: var(--pai-ink);
    font-weight: 500;
}
.pai-card-stat-v .pai-up { color: #15803d; }
.pai-card-stat-v .pai-down { color: #b91c1c; }
.pai-card-stat-v .pai-na { color: var(--pai-ink-faint); }

.pai-card-companies {
    font-size: 0.78rem;
    line-height: 1.5;
    color: var(--pai-ink-muted);
    margin-top: auto;
    padding-top: 0.7rem;
    border-top: 1px solid var(--pai-rule);
}
.pai-card-companies em {
    font-style: normal;
    color: var(--pai-ink-soft);
}

.pai-card-flag {
    display: inline-block;
    font-family: var(--pai-mono);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pai-accent);
    background: rgba(249, 115, 22, 0.1);
    padding: 0.15rem 0.45rem;
    border-radius: 100px;
    margin-left: 0.4rem;
}

.pai-card-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--pai-on-navy-soft);
    padding: 3rem 1rem;
    font-family: var(--pai-mono);
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px dashed rgba(255, 255, 255, 0.15);
    border-radius: 0.6rem;
}

/* ============ METHODOLOGY ============ */
.pai-method-section { padding: 6rem 0; }
.pai-h2-method {
    max-width: 26ch;
    margin-bottom: 2.5rem !important;
}

.pai-method-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.pai-method-col h3 {
    font-size: 1.3rem;
    font-weight: 500;
    color: #ffffff;
    margin: 0 0 1rem;
    letter-spacing: -0.01em;
}

.pai-method-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.pai-method-list li {
    padding: 0.85rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    gap: 1.2rem;
}
.pai-method-list li:first-child { border-top: none; }
.pai-method-k {
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    color: var(--pai-on-navy-faint);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    min-width: 9rem;
    padding-top: 0.2rem;
    flex-shrink: 0;
}
.pai-method-v {
    color: var(--pai-on-navy-soft);
    font-size: 0.92rem;
    line-height: 1.55;
}
.pai-method-v a { color: var(--pai-accent-soft); text-decoration: underline; text-underline-offset: 3px; }
.pai-method-v a:hover { color: #ffffff; }

/* ============ CTA ============ */
.pai-cta {
    padding: 5rem 0;
    background: rgba(0, 0, 0, 0.18);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.pai-cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.pai-section-label-light {
    color: rgba(255, 255, 255, 0.55) !important;
}
.pai-section-label-light .pai-section-num {
    color: rgba(255, 255, 255, 0.3);
}
.pai-cta-h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 300;
    color: #ffffff;
    margin: 0 0 1.25rem;
}
.pai-cta-h2 em { font-style: normal; color: var(--pai-accent-soft); font-weight: 400; }
.pai-cta-p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--pai-on-navy-soft);
    margin: 0;
}

.pai-cta-actions { display: flex; flex-direction: column; gap: 0.7rem; }
.pai-btn {
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.1rem 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #ffffff;
    font-family: var(--pai-mono);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.15s;
    border-radius: 0.5rem;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.02);
}
.pai-btn:hover {
    background: #ffffff;
    color: var(--pai-navy);
    text-decoration: none;
    transform: translateY(-1px);
}
.pai-btn-arrow {
    font-family: 'Aeonik Regular', system-ui, sans-serif;
    font-size: 1.15rem;
    transition: transform 0.2s;
}
.pai-btn:hover .pai-btn-arrow { transform: translateX(4px); }

/* ============ DISCLAIMER ============ */
.pai-disclaimer {
    padding: 1.5rem 0 0.5rem;
}
.pai-disclaimer p {
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    color: var(--pai-on-navy-faint);
    text-align: center;
    margin: 0;
    letter-spacing: 0.05em;
}
.pai-disclaimer a { color: var(--pai-accent-soft); text-decoration: underline; text-underline-offset: 3px; }
.pai-disclaimer a:hover { color: #ffffff; }

/* ============ DRAWER (sector detail) ============ */
.pai-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    z-index: 90;
}
.pai-drawer-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.pai-drawer {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(640px, 100vw);
    background: var(--pai-card-bg);
    color: var(--pai-ink);
    z-index: 100;
    transform: translateX(100%);
    transition: transform 0.32s cubic-bezier(.2,.85,.25,1);
    overflow-y: auto;
    box-shadow: -20px 0 40px rgba(0, 0, 0, 0.25);
}
.pai-drawer.open { transform: translateX(0); }
.pai-drawer, .pai-drawer * { color: var(--pai-ink); }
.pai-drawer .pai-d-stat-k,
.pai-drawer .pai-d-num,
.pai-drawer .pai-d-table th,
.pai-drawer .pai-d-geo-col,
.pai-drawer .pai-d-geo-legend,
.pai-drawer .pai-d-footer { color: var(--pai-ink-faint); }
.pai-drawer .pai-d-section-label { color: var(--pai-accent); }
.pai-drawer .pai-card-layer { color: var(--pai-navy); }
.pai-drawer .pai-d-pov-body { color: var(--pai-ink-soft); }
.pai-drawer .pai-d-table .pai-d-flag { color: var(--pai-accent); }
.pai-drawer .pai-d-table .pai-d-flag.public { color: var(--pai-navy); }
.pai-drawer .pai-d-investor { color: var(--pai-ink-soft); }
.pai-drawer .pai-d-footer a { color: var(--pai-navy); }
.pai-drawer .pai-d-caveats li { color: var(--pai-ink-soft); }

.pai-drawer-inner { padding: 2.5rem 2.25rem 3.5rem; }

.pai-drawer-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(15, 23, 42, 0.06);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
    font-family: 'Aeonik Regular', system-ui, sans-serif;
    font-size: 1.4rem;
    line-height: 1;
    color: var(--pai-ink-muted);
}
.pai-drawer-close:hover { background: rgba(15, 23, 42, 0.12); color: var(--pai-ink); }

.pai-d-header { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.5rem; }
.pai-d-meta-row {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}
.pai-d-meta-row .pai-card-layer { font-size: 0.6rem; }
.pai-d-num {
    font-family: var(--pai-mono);
    font-size: 0.75rem;
    color: var(--pai-ink-faint);
    letter-spacing: 0.1em;
}
.pai-d-title {
    font-size: 2rem;
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 400;
    color: var(--pai-ink);
    margin: 0;
}
.pai-d-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    padding: 1rem 0;
    border-top: 1px solid var(--pai-rule);
    border-bottom: 1px solid var(--pai-rule);
    margin-bottom: 1.5rem;
}
.pai-d-stat-k {
    font-family: var(--pai-mono);
    font-size: 0.62rem;
    color: var(--pai-ink-faint);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.2rem;
}
.pai-d-stat-v {
    font-family: var(--pai-mono);
    font-size: 1.05rem;
    color: var(--pai-ink);
    font-weight: 500;
}

.pai-d-section { margin-bottom: 1.75rem; }
.pai-d-section-label {
    font-family: var(--pai-mono);
    font-size: 0.66rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--pai-accent);
    margin-bottom: 0.85rem;
}
.pai-d-pov-body {
    font-size: 0.98rem;
    line-height: 1.65;
    color: var(--pai-ink-soft);
    font-style: normal;
    padding: 1rem 1.2rem;
    background: rgba(30, 58, 138, 0.04);
    border-left: 3px solid var(--pai-navy);
    border-radius: 0 0.4rem 0.4rem 0;
}

.pai-d-geo {
    display: flex;
    height: 12px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 0.6rem;
    background: rgba(15, 23, 42, 0.06);
}
.pai-d-geo-seg { transition: filter 0.15s; }
.pai-d-geo-seg:hover { filter: brightness(1.1); }
.pai-d-geo-seg.us { background: var(--pai-navy); }
.pai-d-geo-seg.china { background: var(--pai-accent); }
.pai-d-geo-seg.eu { background: #6366f1; }
.pai-d-geo-seg.row { background: #94a3b8; }
.pai-d-geo-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    font-family: var(--pai-mono);
    font-size: 0.7rem;
    color: var(--pai-ink-muted);
}
.pai-d-geo-legend span { display: inline-flex; align-items: center; gap: 0.35rem; }
.pai-d-geo-legend i {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}
.pai-d-geo-legend i.us { background: var(--pai-navy); }
.pai-d-geo-legend i.china { background: var(--pai-accent); }
.pai-d-geo-legend i.eu { background: #6366f1; }
.pai-d-geo-legend i.row { background: #94a3b8; }

.pai-d-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.pai-d-table th, .pai-d-table td {
    padding: 0.55rem 0.5rem;
    text-align: left;
    border-bottom: 1px solid var(--pai-rule);
}
.pai-d-table th {
    font-family: var(--pai-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--pai-ink-faint);
    font-weight: 500;
}
.pai-d-table td.pai-d-val-col {
    font-family: var(--pai-mono);
    font-weight: 500;
    text-align: right;
    white-space: nowrap;
}
.pai-d-table td.pai-d-geo-col {
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    color: var(--pai-ink-muted);
    width: 3.2rem;
}
.pai-d-table .pai-d-flag {
    display: inline-block;
    font-family: var(--pai-mono);
    font-size: 0.58rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(249, 115, 22, 0.12);
    color: var(--pai-accent);
    padding: 0.1rem 0.35rem;
    border-radius: 100px;
    margin-left: 0.35rem;
    vertical-align: middle;
}
.pai-d-table .pai-d-flag.public { background: rgba(30, 58, 138, 0.1); color: var(--pai-navy); }

.pai-d-investors { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.pai-d-investor {
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    color: var(--pai-ink-soft);
    background: rgba(15, 23, 42, 0.05);
    padding: 0.3rem 0.65rem;
    border-radius: 100px;
}

.pai-d-caveats {
    list-style: none;
    margin: 0;
    padding: 0;
}
.pai-d-caveats li {
    position: relative;
    padding: 0.5rem 0 0.5rem 1.2rem;
    font-size: 0.85rem;
    color: var(--pai-ink-soft);
    line-height: 1.55;
    border-top: 1px solid var(--pai-rule);
}
.pai-d-caveats li:first-child { border-top: none; }
.pai-d-caveats li::before {
    content: "!";
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--pai-accent);
    color: #ffffff;
    font-family: var(--pai-mono);
    font-size: 0.62rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.pai-d-footer {
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--pai-rule);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-family: var(--pai-mono);
    font-size: 0.72rem;
    color: var(--pai-ink-faint);
}
.pai-d-footer a {
    color: var(--pai-navy);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ============ HOVER TOOLTIP (hero scenes) ============ */
.pai-tip {
    position: fixed;
    pointer-events: none;
    background: rgba(10, 10, 10, 0.95);
    color: #ffffff;
    border: 1px solid rgba(249, 115, 22, 0.45);
    border-radius: 0.45rem;
    padding: 0.65rem 0.85rem;
    font-family: 'Aeonik Regular', system-ui, sans-serif;
    font-size: 0.78rem;
    line-height: 1.45;
    max-width: 280px;
    z-index: 200;
    opacity: 0;
    transition: opacity 0.12s ease;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}
.pai-tip.show { opacity: 1; }
.pai-tip strong { color: var(--pai-accent); font-weight: 600; display: block; margin-bottom: 0.15rem; }
.pai-tip em { color: rgba(255, 255, 255, 0.7); font-style: normal; font-family: var(--pai-mono); font-size: 0.7rem; }
.pai-tip { font-style: normal; }
.pai-d-pov-body, .pai-tip, .pai-tip *, .pai-pov p, .pai-card-companies em, .pai-card-companies, .pai-title em, .pai-scene-h2 em, .pai-cta-h2 em, .pai-chasm-summary strong { font-style: normal !important; }

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
    .pai-scene-grid, .pai-scene-grid.pai-flip {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .pai-grid { grid-template-columns: repeat(2, 1fr); }
    .pai-tldr-grid { grid-template-columns: repeat(2, 1fr); }
    .pai-flow-pair { grid-template-columns: 1fr; }
    .pai-meta { grid-template-columns: repeat(2, 1fr); }
    .pai-cta-grid, .pai-method-grid { grid-template-columns: 1fr; gap: 2rem; }
    .pai-scene, .pai-explorer-section, .pai-method-section { padding: 4rem 0; }
    .pai-hero { padding: 6rem 0 2rem; }
}

@media (max-width: 640px) {
    .pai-grid { grid-template-columns: 1fr; }
    .pai-tldr-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .pai-meta { grid-template-columns: 1fr; gap: 1rem; }
    .pai-stat { font-size: 2.4rem; }
    .pai-chasm-row { grid-template-columns: 8.5rem 1fr 3.5rem; gap: 0.7rem; font-size: 0.78rem; }
    .pai-velocity { display: none; }
    .pai-velocity-fallback { display: flex; }
    .pai-explorer-bar { gap: 1rem; }
    .pai-filter-meta { margin-left: 0; }
    .pai-drawer { width: 100vw; }
    .pai-drawer-inner { padding: 2rem 1.5rem 2.5rem; }
    .pai-subnav { top: 60px; }
}

/* When the canonical.cc header is in "scrolled" state, give the subnav a touch more contrast */
#header.scrolled ~ main .pai-subnav { background: rgba(30, 58, 138, 0.95); }