.reasoning-page {
    --primary-color: #b8763b;
    --secondary-color: #1a2733;
    --accent-color: #d8b187;
    --nav-bg: rgba(26, 39, 51, 0.9);
    --nav-border: rgba(250, 248, 243, 0.14);
    --nav-shadow: 0 18px 42px rgba(17, 24, 39, 0.28);
    --nav-bg-scrolled: var(--nav-bg);
    --nav-shadow-scrolled: var(--nav-shadow);
    --nav-icon-color: #faf8f3;
    --reasoning-page-bg: #faf8f3;
    --reasoning-page-text: #1a2733;
    --reasoning-muted-text: #5a6470;
    --reasoning-soft-bg: #efeae0;
    --reasoning-panel-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(250, 248, 243, 0.96) 100%);
    --reasoning-panel-border: rgba(26, 39, 51, 0.1);
    --reasoning-panel-shadow: 0 16px 38px rgba(26, 39, 51, 0.08);
    --reasoning-card-accent: linear-gradient(90deg, #b8763b, #3d5a80);
    --reasoning-card-glow: radial-gradient(circle, rgba(184, 118, 59, 0.14) 0%, rgba(184, 118, 59, 0) 72%);
    --solution-section-muted-bg: var(--reasoning-soft-bg);
    --solution-section-dark-bg:
        radial-gradient(circle at 18% 20%, rgba(216, 177, 135, 0.12) 0%, transparent 36%),
        linear-gradient(135deg, #1a2733 0%, #2d3e4f 62%, #b8763b 100%);
    --solution-section-dark-text: #faf8f3;
    --solution-section-dark-lead: rgba(250, 248, 243, 0.84);
    --solution-card-radius: 20px;
    --solution-card-bg: var(--reasoning-panel-bg);
    --solution-card-border: var(--reasoning-panel-border);
    --solution-card-shadow: var(--reasoning-panel-shadow);
    --solution-card-title-color: var(--reasoning-page-text);
    --solution-card-text-color: var(--reasoning-muted-text);
    --solution-card-kicker-bg: rgba(184, 118, 59, 0.1);
    --solution-card-kicker-text: #8b5729;
    --solution-card-accent: var(--reasoning-card-accent);
    --solution-card-glow: var(--reasoning-card-glow);
    --solution-card-glow-opacity: 0.9;
    --solution-faq-toggle-color: #b8763b;
    --solution-faq-accent: var(--reasoning-card-accent);
    --solution-faq-accent-opacity: 0.88;
    --solution-faq-glow: var(--reasoning-card-glow);
    --solution-faq-glow-opacity: 0.9;
    --solution-cta-bg: linear-gradient(135deg, #1a2733 0%, #2d3e4f 54%, #b8763b 100%);
    --solution-cta-text: #faf8f3;
    --solution-cta-muted-text: rgba(250, 248, 243, 0.86);
    background: var(--reasoning-page-bg);
    color: var(--reasoning-page-text);
}

html[data-theme="dark"] body.reasoning-page {
    --reasoning-page-bg: #07101c;
    --reasoning-page-text: #f8fafc;
    --reasoning-muted-text: #b9c4d2;
    --reasoning-soft-bg: #0c1728;
    --reasoning-panel-bg: linear-gradient(180deg, rgba(13, 21, 35, 0.96) 0%, rgba(18, 28, 45, 0.94) 100%);
    --reasoning-panel-border: rgba(216, 177, 135, 0.16);
    --reasoning-panel-shadow: 0 20px 52px rgba(2, 8, 23, 0.38);
    --reasoning-card-accent: linear-gradient(90deg, #d8b187, #67e8f9);
    --reasoning-card-glow: radial-gradient(circle, rgba(216, 177, 135, 0.18) 0%, rgba(216, 177, 135, 0) 72%);
    --solution-card-title-color: #f8fafc;
    --solution-card-text-color: rgba(226, 232, 240, 0.84);
    --solution-card-kicker-text: #f6d6b5;
    --solution-section-dark-bg:
        radial-gradient(circle at 18% 20%, rgba(216, 177, 135, 0.1) 0%, transparent 36%),
        linear-gradient(135deg, #07101c 0%, #132033 58%, #4a2f1f 100%);
}

.reasoning-hero {
    position: relative;
    overflow: hidden;
    min-height: 700px;
    padding: clamp(6rem, 8vw, 7.5rem) 0 clamp(3.5rem, 5vw, 4.5rem);
    background:
        radial-gradient(circle at 18% 20%, rgba(216, 177, 135, 0.14) 0%, transparent 34%),
        radial-gradient(circle at 76% 18%, rgba(61, 90, 128, 0.18) 0%, transparent 34%),
        linear-gradient(135deg, #1a2733 0%, #2d3e4f 58%, #1a2733 100%) !important;
    color: #faf8f3;
}

.reasoning-hero::before,
.reasoning-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.reasoning-hero::before {
    background:
        radial-gradient(circle at 20% 24%, rgba(184, 118, 59, 0.14), transparent 34%),
        radial-gradient(circle at 76% 76%, rgba(216, 177, 135, 0.08), transparent 42%);
    z-index: 1;
}

.reasoning-hero::after {
    background-image:
        linear-gradient(rgba(250, 248, 243, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(250, 248, 243, 0.04) 1px, transparent 1px);
    background-size: 72px 72px;
    z-index: 1;
    animation: reasoning-grid-move 22s linear infinite;
}

@keyframes reasoning-grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(72px, 72px); }
}

.reasoning-hero .hero-layout {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: minmax(520px, 1.12fr) minmax(380px, 0.9fr);
    gap: 2rem;
    align-items: center;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 2.5rem);
}

.reasoning-hero .hero-content,
.reasoning-hero .hero-visual {
    position: relative;
    z-index: 10;
}

.reasoning-hero .solution-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    margin-bottom: 1.25rem;
    border-radius: 999px;
    border: 1px solid rgba(250, 248, 243, 0.2);
    background: rgba(250, 248, 243, 0.1);
    color: #faf8f3;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.reasoning-hero .solution-badge svg {
    color: #d8b187;
}

.reasoning-hero .hero-title,
.reasoning-hero .hero-title * {
    color: #faf8f3 !important;
    -webkit-text-fill-color: #faf8f3 !important;
    font-family: "Avenir Next", "Avenir Next LT Pro", "Helvetica Neue", Inter, sans-serif !important;
    font-weight: 100 !important;
    font-size: clamp(2.1rem, 3.55vw, 3.1rem) !important;
    line-height: 1.04 !important;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem !important;
    text-shadow: none !important;
}

.reasoning-hero .hero-kicker {
    margin: 0 0 0.85rem;
    max-width: 700px;
    color: rgba(250, 248, 243, 0.92);
    font-size: 1.08rem;
    line-height: 1.62;
}

.reasoning-hero .hero-subtitle {
    max-width: 720px;
    color: rgba(250, 248, 243, 0.78);
    line-height: 1.72;
}

.reasoning-hero .hero-proof {
    display: grid;
    gap: 0.75rem;
    margin: 1.5rem 0 1.75rem;
}

.reasoning-hero .hero-proof div {
    padding: 0.85rem 1rem;
    border-radius: 14px;
    border: 1px solid rgba(250, 248, 243, 0.12);
    background: rgba(250, 248, 243, 0.07);
    color: rgba(250, 248, 243, 0.76);
}

.reasoning-hero .hero-proof strong {
    display: block;
    color: #faf8f3;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.reasoning-hero .hero-visual {
    min-height: 560px;
}

#reasoning-hero-viz {
    width: 100%;
    min-height: 560px;
}

.reasoning-section {
    padding: clamp(4.5rem, 7vw, 6rem) 0;
    background: var(--reasoning-page-bg);
}

.reasoning-section--muted {
    background: var(--reasoning-soft-bg);
}

.reasoning-section--dark {
    background: var(--solution-section-dark-bg);
    color: var(--solution-section-dark-text);
}

.reasoning-section .section-intro {
    max-width: 780px;
    margin: 0 auto 3rem;
    text-align: center;
}

.reasoning-section .eyebrow,
.reasoning-hero .hero-eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #b8763b;
    font-weight: 700;
    margin: 0 0 0.9rem;
}

.reasoning-section--dark .eyebrow {
    color: #d8b187;
}

.reasoning-section h2 {
    margin: 0 0 1rem;
    color: var(--reasoning-page-text);
    font-size: clamp(2rem, 3.4vw, 3.1rem);
    line-height: 1.08;
    letter-spacing: -0.022em;
    font-weight: 300;
}

.reasoning-section--dark h2,
.reasoning-section--dark h3 {
    color: #faf8f3;
}

.reasoning-section .section-lead,
.reasoning-section .lede {
    color: var(--reasoning-muted-text);
    font-size: 1.08rem;
    line-height: 1.72;
}

.reasoning-section--dark .section-lead,
.reasoning-section--dark .lede {
    color: rgba(250, 248, 243, 0.82);
}

.thesis {
    max-width: 900px;
    margin: 0 auto;
    padding: clamp(2rem, 4vw, 3rem);
    font-size: clamp(1.5rem, 2.5vw, 2.15rem);
    line-height: 1.4;
    color: var(--reasoning-page-text);
    border-left: 4px solid #b8763b;
}

.thesis cite {
    display: block;
    margin-top: 1.5rem;
    color: var(--reasoning-muted-text);
    font-size: 0.85rem;
    font-style: normal;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.problem-grid,
.archetypes,
.why-now,
.quick-facts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.problem-card .num,
.workflow-number,
.phase .ph-num {
    color: #b8763b;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.78rem;
    margin: 0 0 0.9rem;
}

.diagram-stage {
    position: relative;
    background:
        radial-gradient(circle at 18% 12%, rgba(103, 232, 249, 0.09), transparent 34%),
        radial-gradient(circle at 76% 76%, rgba(216, 177, 135, 0.1), transparent 36%),
        linear-gradient(135deg, #07101c 0%, #111f31 58%, #0a1220 100%);
    border: 1px solid rgba(216, 177, 135, 0.16);
    border-radius: 20px;
    padding: clamp(1.25rem, 3vw, 2.25rem);
    box-shadow: 0 24px 70px rgba(2, 8, 23, 0.26);
    overflow-x: auto;
    overflow-y: hidden;
}

.diagram-viz {
    width: 100%;
    min-width: 760px;
}

.diagram-viz svg {
    width: 100%;
    aspect-ratio: 1020 / 460;
    height: auto;
    min-height: 340px;
    max-height: 520px;
    display: block;
}

.diagram-help {
    color: rgba(226, 232, 240, 0.68);
    text-align: center;
    font-size: 0.9rem;
    margin: 1rem 0 0;
}

.tooltip-card {
    margin-top: 1.25rem;
    min-height: 128px;
    padding: 1.5rem;
    border-radius: 18px;
    background: #1a2733;
    color: #faf8f3;
}

.tooltip-card .tt-label {
    margin: 0 0 0.55rem;
    color: #d8b187;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 700;
}

.tooltip-card h4 {
    margin: 0 0 0.65rem;
    color: #faf8f3;
    font-size: 1.25rem;
}

.tooltip-card p {
    margin: 0;
    color: rgba(250, 248, 243, 0.82);
    line-height: 1.62;
}

.tooltip-card .tt-rationale {
    margin-top: 1rem;
    padding-left: 1rem;
    border-left: 2px solid #d8b187;
    color: rgba(250, 248, 243, 0.95);
    font-style: italic;
}

.tooltip-empty {
    min-height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(250, 248, 243, 0.48);
    text-align: center;
}

.node-group {
    cursor: pointer;
    outline: none;
}

.node-group .node-shell,
.node-group .node-halo {
    transition: opacity 0.2s ease, stroke-width 0.2s ease;
}

.node-group:hover .node-shell,
.node-group:focus-visible .node-shell,
.node-group.is-active .node-shell {
    stroke-width: 2.45;
}

.node-group:hover .node-halo,
.node-group:focus-visible .node-halo,
.node-group.is-active .node-halo {
    opacity: 0.16;
}

.workflow-edge {
    transition: opacity 0.2s ease, stroke-width 0.2s ease;
}

.workflow-edge.is-related {
    opacity: 1 !important;
    stroke-width: 3 !important;
    filter: url(#workflow-glow);
}

.archetype {
    border-top-width: 4px;
    border-top-style: solid;
}

.archetype.trigger { border-top-color: #4a7c59; }
.archetype.transform { border-top-color: #3d5a80; }
.archetype.action { border-top-color: #b8763b; }
.archetype.reference { border-top-color: #7a7a7a; }

.archetype-name {
    margin: 0 0 0.35rem;
    color: var(--reasoning-page-text);
    font-size: 1.25rem;
    font-weight: 600;
}

.archetype-handles,
.archetype-examples {
    color: var(--reasoning-muted-text);
    font-size: 0.9rem;
}

.archetype-desc {
    color: var(--reasoning-muted-text);
    line-height: 1.62;
}

.narrative-frame {
    position: relative;
    padding: clamp(2rem, 4vw, 3.5rem);
    border-radius: 20px;
    background: var(--reasoning-panel-bg);
    border: 1px solid var(--reasoning-panel-border);
    box-shadow: var(--reasoning-panel-shadow);
}

.narrative-frame::before {
    content: "EXTRACT - REASONING RECORD";
    position: absolute;
    top: -0.72rem;
    left: 1.5rem;
    padding: 0 0.75rem;
    background: var(--reasoning-page-bg);
    color: #b8763b;
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    font-weight: 700;
}

.narrative-header {
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--reasoning-panel-border);
    color: var(--reasoning-muted-text);
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.86rem;
    line-height: 1.65;
}

.narrative-header strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--reasoning-page-text);
    font-family: var(--font-system);
    font-size: 1rem;
}

.narrative-frame p {
    color: var(--reasoning-page-text);
    line-height: 1.78;
}

.narrative-frame .ref {
    display: block;
    margin: 0.35rem 0 1.3rem;
    padding-left: 0.75rem;
    border-left: 2px solid var(--reasoning-panel-border);
    color: var(--reasoning-muted-text);
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.82rem;
}

.persona-tabs {
    display: flex;
    gap: 0.4rem;
    border-bottom: 1px solid var(--reasoning-panel-border);
    margin-bottom: 2rem;
    overflow-x: auto;
}

.persona-tab {
    appearance: none;
    background: transparent;
    border: 0;
    padding: 1rem 1.4rem;
    color: var(--reasoning-muted-text);
    cursor: pointer;
    font-weight: 700;
    position: relative;
}

.persona-tab.active {
    color: #b8763b;
}

.persona-tab.active::after {
    content: "";
    position: absolute;
    left: 1.4rem;
    right: 1.4rem;
    bottom: -1px;
    height: 2px;
    background: #b8763b;
}

.persona-panel {
    display: none;
}

.persona-panel.active {
    display: block;
    animation: reasoning-fade-in 0.28s ease;
}

@keyframes reasoning-fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.persona-panel .role {
    color: var(--reasoning-muted-text);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-size: 0.82rem;
    font-weight: 700;
}

.persona-panel .quote {
    margin: 1.2rem 0;
    padding-left: 1.3rem;
    border-left: 3px solid #b8763b;
    color: var(--reasoning-page-text);
    font-style: italic;
    line-height: 1.62;
}

.persona-panel ul,
.feature-bullets {
    padding-left: 1.2rem;
    color: var(--reasoning-muted-text);
    line-height: 1.7;
}

.compare-wrap {
    overflow-x: auto;
}

.compare {
    width: 100%;
    min-width: 780px;
    border-collapse: collapse;
    overflow: hidden;
    border-radius: 18px;
    background: var(--reasoning-panel-bg);
    box-shadow: var(--reasoning-panel-shadow);
}

.compare th,
.compare td {
    text-align: left;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--reasoning-panel-border);
    color: var(--reasoning-muted-text);
    vertical-align: top;
}

.compare th {
    color: var(--reasoning-page-text);
    background: rgba(184, 118, 59, 0.08);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.compare td.tool {
    color: var(--reasoning-page-text);
    font-weight: 700;
}

.roadmap {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.6rem;
}

.phase {
    border-top: 3px solid var(--reasoning-panel-border);
}

.phase.live {
    border-top-color: #b8763b;
}

.phase.next {
    border-top-color: #d8b187;
}

.phase .ph-title {
    margin: 0 0 0.5rem;
    color: var(--reasoning-page-text);
    font-weight: 700;
}

.phase .ph-meta {
    color: var(--reasoning-muted-text);
    font-size: 0.9rem;
}

.why-card {
    padding: 0;
}

.why-card .stat {
    color: #d8b187;
    font-size: 1.9rem;
    font-weight: 300;
    margin: 0 0 0.8rem;
}

.why-card p {
    color: rgba(250, 248, 243, 0.78);
}

.reasoning-cta-section {
    padding: clamp(4.5rem, 7vw, 6rem) 0;
    background: var(--reasoning-page-bg);
}

.reasoning-cta-section .solution-cta-panel {
    grid-template-columns: minmax(0, 1.35fr) auto;
}

@media (max-width: 980px) {
    .reasoning-hero .hero-layout {
        grid-template-columns: 1fr;
    }

    .reasoning-hero .hero-visual {
        min-height: 460px;
    }
}

@media (max-width: 768px) {
    .reasoning-hero {
        min-height: auto;
    }

    .reasoning-hero .hero-proof {
        grid-template-columns: 1fr;
    }

    .reasoning-cta-section .solution-cta-panel {
        grid-template-columns: 1fr;
    }
}