/* ═══════════════════════════════════════════════════════════════════════════════
   DEEP RESEARCH v3 — Liquid Glass Report Design System
   ═══════════════════════════════════════════════════════════════════════════════
   Professional + minimal + futuristic. Built on the 4-stage framework.
   Features: animated TOC, MS Word-level formatting, glass morphism, 3D depth.
*/

/* ─── Design Tokens ─────────────────────────────────────────────────────── */
:root {
    /* Backgrounds */
    --drv3-bg-void:          #060609;
    --drv3-bg-base:          #0a0a0f;
    --drv3-bg-surface:       rgba(18, 18, 26, 0.7);
    --drv3-bg-elevated:      rgba(28, 28, 40, 0.55);
    --drv3-bg-glass:         rgba(255, 255, 255, 0.03);
    --drv3-bg-glass-hover:   rgba(255, 255, 255, 0.06);

    /* Text */
    --drv3-text-primary:     #f0f0f5;
    --drv3-text-secondary:   rgba(240, 240, 245, 0.72);
    --drv3-text-muted:       rgba(240, 240, 245, 0.45);
    --drv3-text-faint:       rgba(240, 240, 245, 0.25);

    /* Accents */
    --drv3-accent:           #6366f1;
    --drv3-accent-light:     #818cf8;
    --drv3-accent-dim:       rgba(99, 102, 241, 0.15);
    --drv3-accent-cyan:      #22d3ee;
    --drv3-accent-emerald:   #34d399;
    --drv3-accent-amber:     #fbbf24;
    --drv3-accent-rose:      #fb7185;
    --drv3-accent-violet:    #a78bfa;

    /* Glass */
    --drv3-glass-border:     rgba(255, 255, 255, 0.06);
    --drv3-glass-shadow:     0 8px 32px rgba(0, 0, 0, 0.4);
    --drv3-glass-blur:       20px;
    --drv3-glass-radius:     16px;

    /* Typography */
    --drv3-font-serif:       'Cormorant Garamond', 'Georgia', serif;
    --drv3-font-sans:        'Inter', 'Poppins', -apple-system, sans-serif;
    --drv3-font-mono:        'JetBrains Mono', 'Fira Code', monospace;

    /* Scale */
    --drv3-text-xs:    0.75rem;
    --drv3-text-sm:    0.875rem;
    --drv3-text-base:  1rem;
    --drv3-text-lg:    1.125rem;
    --drv3-text-xl:    1.25rem;
    --drv3-text-2xl:   1.5rem;
    --drv3-text-3xl:   1.875rem;
    --drv3-text-4xl:   2.25rem;
    --drv3-text-5xl:   3rem;

    /* Spacing */
    --drv3-space-1:  0.25rem;
    --drv3-space-2:  0.5rem;
    --drv3-space-3:  0.75rem;
    --drv3-space-4:  1rem;
    --drv3-space-6:  1.5rem;
    --drv3-space-8:  2rem;
    --drv3-space-10: 2.5rem;
    --drv3-space-12: 3rem;
    --drv3-space-16: 4rem;
    --drv3-space-20: 5rem;

    /* Transitions */
    --drv3-ease-spring:  cubic-bezier(0.23, 1, 0.32, 1);
    --drv3-transition:   250ms var(--drv3-ease-spring);

    /* Layout */
    --drv3-content-width: 68ch;
    --drv3-toc-width:     260px;
}


/* ─── Container & Layout ─────────────────────────────────────────────── */
.drv3-report {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--drv3-space-10) var(--drv3-space-8);
    font-family: var(--drv3-font-sans);
    color: var(--drv3-text-primary);
    line-height: 1.7;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'liga' 1, 'kern' 1;
}

.drv3-layout {
    display: grid;
    grid-template-columns: var(--drv3-toc-width) 1fr;
    gap: var(--drv3-space-10);
    align-items: start;
}

/* When no TOC is present, use full-width single column */
.drv3-layout--no-toc {
    grid-template-columns: 1fr;
}


/* ─── TOC — Animated Line Stack ──────────────────────────────────────── */
.drv3-toc {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
}
.drv3-toc::-webkit-scrollbar { display: none; }

.drv3-toc__header {
    display: flex;
    align-items: center;
    gap: var(--drv3-space-2);
    margin-bottom: var(--drv3-space-4);
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
}

.drv3-toc__label {
    font-size: var(--drv3-text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--drv3-text-muted);
}

.drv3-toc__toggle-icon {
    width: 14px;
    height: 14px;
    color: var(--drv3-text-muted);
    transition: transform var(--drv3-transition);
}
.drv3-toc.is-collapsed .drv3-toc__toggle-icon {
    transform: rotate(-90deg);
}

/* Progress rail under TOC header */
.drv3-toc__progress {
    height: 2px;
    background: var(--drv3-glass-border);
    border-radius: 1px;
    margin-bottom: var(--drv3-space-6);
    overflow: hidden;
}
.drv3-toc__progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--drv3-accent), var(--drv3-accent-cyan));
    border-radius: 1px;
    transition: width 300ms ease-out;
}

/* TOC line stack — collapsed state: each line is a thin bar */
.drv3-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.drv3-toc.is-collapsed .drv3-toc__list {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.drv3-toc__item {
    position: relative;
    transition: all 400ms var(--drv3-ease-spring);
}

/* Collapsed → animated lines */
.drv3-toc.is-collapsed .drv3-toc__item {
    height: 4px;
    border-radius: 2px;
    background: var(--drv3-glass-border);
    overflow: hidden;
    cursor: pointer;
}
.drv3-toc.is-collapsed .drv3-toc__item.is-active {
    background: var(--drv3-accent);
    box-shadow: 0 0 8px rgba(99, 102, 241, 0.3);
}
.drv3-toc.is-collapsed .drv3-toc__item.is-completed {
    background: var(--drv3-accent-emerald);
}
.drv3-toc.is-collapsed .drv3-toc__link {
    opacity: 0;
    pointer-events: none;
    position: absolute;
}

/* Expanded → full TOC */
.drv3-toc__link {
    display: flex;
    align-items: baseline;
    gap: var(--drv3-space-2);
    padding: 6px 0 6px 0;
    text-decoration: none;
    color: var(--drv3-text-muted);
    font-size: var(--drv3-text-sm);
    transition: color var(--drv3-transition), padding-left var(--drv3-transition);
    border-left: 2px solid transparent;
    padding-left: var(--drv3-space-3);
}
.drv3-toc__link:hover {
    color: var(--drv3-text-primary);
}
.drv3-toc__link.is-active {
    color: var(--drv3-accent-light);
    border-left-color: var(--drv3-accent);
    padding-left: var(--drv3-space-4);
}

/* TOC level indentation */
.drv3-toc__link--l2 { padding-left: calc(var(--drv3-space-3) + 12px); }
.drv3-toc__link--l3 { padding-left: calc(var(--drv3-space-3) + 24px); font-size: var(--drv3-text-xs); }
.drv3-toc__link--l4 { padding-left: calc(var(--drv3-space-3) + 36px); font-size: var(--drv3-text-xs); }

.drv3-toc__number {
    font-family: var(--drv3-font-mono);
    font-size: 0.7em;
    color: var(--drv3-text-faint);
    min-width: 2ch;
}
.drv3-toc__text {
    flex: 1;
}

/* Stage badges in TOC */
.drv3-toc__stage {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 1px 6px;
    border-radius: 4px;
    margin-left: auto;
    flex-shrink: 0;
}
.drv3-toc__stage--question    { background: rgba(99,102,241,0.15); color: var(--drv3-accent-light); }
.drv3-toc__stage--methodology { background: rgba(34,211,238,0.15); color: var(--drv3-accent-cyan); }
.drv3-toc__stage--evidence    { background: rgba(52,211,153,0.15); color: var(--drv3-accent-emerald); }
.drv3-toc__stage--meaning     { background: rgba(251,191,36,0.15); color: var(--drv3-accent-amber); }


/* ─── Main Content ───────────────────────────────────────────────────── */
.drv3-main {
    min-width: 0;
    max-width: var(--drv3-content-width);
}

.drv3-article {
    animation: drv3FadeIn 600ms var(--drv3-ease-spring) both;
}


/* ─── Report Header ──────────────────────────────────────────────────── */
.drv3-header {
    margin-bottom: var(--drv3-space-16);
    padding-bottom: var(--drv3-space-10);
    border-bottom: 2px solid var(--drv3-glass-border);
}

.drv3-header__badges {
    display: flex;
    gap: var(--drv3-space-2);
    margin-bottom: var(--drv3-space-4);
    flex-wrap: wrap;
}
.drv3-header__badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: var(--drv3-text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--drv3-accent-dim);
    color: var(--drv3-accent-light);
    border: 1px solid rgba(99, 102, 241, 0.2);
}
.drv3-header__badge--archetype {
    background: rgba(167, 139, 250, 0.12);
    color: var(--drv3-accent-violet);
    border-color: rgba(167, 139, 250, 0.25);
}

.drv3-header__title {
    font-family: var(--drv3-font-serif);
    font-size: var(--drv3-text-5xl);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.025em;
    color: var(--drv3-text-primary);
    margin: 0 0 var(--drv3-space-4) 0;
    text-rendering: geometricPrecision;
}

.drv3-header__subtitle {
    font-size: var(--drv3-text-xl);
    color: var(--drv3-text-secondary);
    font-weight: 400;
    margin: 0 0 var(--drv3-space-8) 0;
    line-height: 1.5;
    max-width: 85%;
}

.drv3-header__meta {
    display: flex;
    gap: var(--drv3-space-6);
    flex-wrap: wrap;
    font-size: var(--drv3-text-sm);
    color: var(--drv3-text-muted);
}
.drv3-header__stat {
    display: flex;
    align-items: center;
    gap: 6px;
}
.drv3-header__stat-icon {
    opacity: 0.6;
}


/* ─── Abstract ───────────────────────────────────────────────────────── */
.drv3-abstract {
    position: relative;
    padding: var(--drv3-space-8);
    margin-bottom: var(--drv3-space-12);
    background: var(--drv3-bg-glass);
    border: 1px solid var(--drv3-glass-border);
    border-radius: var(--drv3-glass-radius);
    -webkit-backdrop-filter: blur(var(--drv3-glass-blur));
    backdrop-filter: blur(var(--drv3-glass-blur));
    border-left: 4px solid var(--drv3-accent);
}
.drv3-abstract__label {
    font-size: var(--drv3-text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--drv3-accent-light);
    margin-bottom: var(--drv3-space-3);
}
.drv3-abstract__text {
    font-size: var(--drv3-text-lg);
    line-height: 1.9;
    color: var(--drv3-text-secondary);
    text-align: justify;
    font-style: italic;
    text-rendering: optimizeLegibility;
}


/* ─── Lead Paragraph (Drop Cap) ─────────────────────────────────────── */
.drv3-lead {
    font-size: var(--drv3-text-lg);
    line-height: 1.85;
    color: var(--drv3-text-primary);
    margin-bottom: var(--drv3-space-10);
    text-align: justify;
    text-rendering: optimizeLegibility;
}
.drv3-lead::first-letter {
    float: left;
    font-family: var(--drv3-font-serif);
    font-size: 4.5em;
    line-height: 0.8;
    padding-right: 0.08em;
    margin-top: 0.05em;
    color: var(--drv3-accent-light);
    font-weight: 700;
    text-rendering: geometricPrecision;
}


/* ─── Sections & Headings ────────────────────────────────────────────── */
.drv3-section {
    margin-bottom: var(--drv3-space-12);
    scroll-margin-top: 80px;
    padding-bottom: var(--drv3-space-4);
}
.drv3-section + .drv3-section {
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding-top: var(--drv3-space-8);
}

.drv3-heading {
    font-family: var(--drv3-font-serif);
    color: var(--drv3-text-primary);
    margin: 0 0 var(--drv3-space-4) 0;
    position: relative;
}
.drv3-heading--h2 {
    font-size: var(--drv3-text-3xl);
    font-weight: 700;
    padding-bottom: var(--drv3-space-3);
    margin-top: var(--drv3-space-12);
    border-bottom: 1px solid var(--drv3-glass-border);
    letter-spacing: -0.01em;
    line-height: 1.25;
}
.drv3-heading--h3 {
    font-size: var(--drv3-text-2xl);
    font-weight: 600;
    margin-top: var(--drv3-space-8);
    letter-spacing: -0.005em;
    line-height: 1.3;
}
.drv3-heading--h4 {
    font-size: var(--drv3-text-xl);
    font-weight: 600;
    color: var(--drv3-text-secondary);
    margin-top: var(--drv3-space-6);
    line-height: 1.35;
}
.drv3-heading--h5 {
    font-size: var(--drv3-text-lg);
    font-weight: 600;
    color: var(--drv3-text-secondary);
    font-family: var(--drv3-font-sans);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: var(--drv3-space-6);
    line-height: 1.4;
}

.drv3-heading__anchor {
    position: absolute;
    left: -1.5em;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    color: var(--drv3-text-faint);
    text-decoration: none;
    font-size: 0.75em;
    transition: opacity var(--drv3-transition);
}
.drv3-heading:hover .drv3-heading__anchor { opacity: 1; }

/* Stage indicator on section headers */
.drv3-heading__stage {
    display: inline-block;
    font-family: var(--drv3-font-sans);
    font-size: 0.5em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 2px 8px;
    border-radius: 4px;
    vertical-align: middle;
    margin-left: var(--drv3-space-3);
}


/* ─── Paragraphs & Text ──────────────────────────────────────────────── */
.drv3-paragraph {
    font-size: var(--drv3-text-base);
    line-height: 1.85;
    color: var(--drv3-text-primary);
    margin-bottom: var(--drv3-space-4);
    text-align: justify;
    word-spacing: 0.01em;
    -webkit-hyphens: auto;
    hyphens: auto;
    orphans: 3;
    widows: 3;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Markdown Content Wrapper (from _formatMarkdown) ────────────────── */
.drv3-content {
    font-size: var(--drv3-text-base);
    line-height: 1.85;
    color: var(--drv3-text-primary);
    margin-bottom: var(--drv3-space-4);
    text-align: justify;
    word-spacing: 0.01em;
    -webkit-hyphens: auto;
    hyphens: auto;
    orphans: 3;
    widows: 3;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Paragraphs ── */
.drv3-content p {
    margin-bottom: var(--drv3-space-4);
    line-height: 1.85;
    text-indent: 0;
    text-align: justify;
    orphans: 3;
    widows: 3;
}
.drv3-content p + p {
    margin-top: var(--drv3-space-3);
}
.drv3-content > *:last-child { margin-bottom: 0; }

/* ── Headings inside content ── */
.drv3-content .drv3-heading {
    margin-top: var(--drv3-space-10);
    margin-bottom: var(--drv3-space-4);
}
.drv3-content .drv3-heading:first-child { margin-top: 0; }
.drv3-content .drv3-heading--h2 {
    font-size: var(--drv3-text-2xl);
    padding-bottom: var(--drv3-space-2);
    border-bottom: 1px solid var(--drv3-glass-border);
}
.drv3-content .drv3-heading--h3 {
    font-size: var(--drv3-text-xl);
    margin-top: var(--drv3-space-8);
    color: var(--drv3-accent-light);
}
.drv3-content .drv3-heading--h4 {
    font-size: var(--drv3-text-lg);
    margin-top: var(--drv3-space-6);
    color: var(--drv3-text-secondary);
    font-style: italic;
}
.drv3-content .drv3-heading--h5 {
    font-size: var(--drv3-text-base);
    margin-top: var(--drv3-space-4);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--drv3-text-muted);
}

/* ── Lists inside content ── */
.drv3-content .drv3-list {
    margin-bottom: var(--drv3-space-6);
    padding-left: var(--drv3-space-8);
}
.drv3-content .drv3-list .drv3-list {
    margin-top: var(--drv3-space-2);
    margin-bottom: var(--drv3-space-2);
    padding-left: var(--drv3-space-6);
}
.drv3-content .drv3-list .drv3-list .drv3-list {
    padding-left: var(--drv3-space-6);
}
.drv3-content .drv3-list__item {
    margin-bottom: var(--drv3-space-2);
    line-height: 1.8;
    text-align: left;
    padding-left: var(--drv3-space-1);
}
.drv3-content .drv3-list--bullet .drv3-list__item::marker {
    color: var(--drv3-accent-light);
}
.drv3-content .drv3-list--bullet .drv3-list--bullet .drv3-list__item::marker {
    color: var(--drv3-accent-cyan);
}
.drv3-content .drv3-list--bullet .drv3-list--bullet .drv3-list--bullet .drv3-list__item::marker {
    color: var(--drv3-accent-emerald);
}
.drv3-content .drv3-list--numbered .drv3-list__item::marker {
    color: var(--drv3-accent-cyan);
    font-weight: 600;
    font-family: var(--drv3-font-mono);
    font-size: 0.9em;
}

/* ── Tables inside content ── */
.drv3-content .drv3-table-wrap {
    margin: var(--drv3-space-8) 0;
    border-radius: var(--drv3-glass-radius);
    border: 1px solid var(--drv3-glass-border);
    overflow-x: auto;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}
.drv3-content .drv3-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--drv3-text-sm);
}
.drv3-content .drv3-table th {
    background: rgba(99, 102, 241, 0.08);
    padding: var(--drv3-space-3) var(--drv3-space-4);
    text-align: left;
    font-weight: 700;
    color: var(--drv3-accent-light);
    font-size: var(--drv3-text-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 2px solid rgba(99, 102, 241, 0.2);
    white-space: nowrap;
}
.drv3-content .drv3-table td {
    padding: var(--drv3-space-3) var(--drv3-space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--drv3-text-primary);
    line-height: 1.65;
    vertical-align: top;
}
.drv3-content .drv3-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.015);
}
.drv3-content .drv3-table tbody tr:hover {
    background: var(--drv3-bg-glass-hover);
}

/* ── Blockquotes inside content ── */
.drv3-content .drv3-blockquote {
    margin: var(--drv3-space-8) 0;
    padding: var(--drv3-space-6) var(--drv3-space-8);
    padding-left: calc(var(--drv3-space-8) + 4px);
    border-left: 4px solid var(--drv3-accent);
    background: var(--drv3-bg-glass);
    border-radius: 0 12px 12px 0;
    font-family: var(--drv3-font-serif);
    font-style: italic;
    color: var(--drv3-text-secondary);
    line-height: 1.8;
}

/* ── Callouts inside content ── */
.drv3-content .drv3-callout {
    margin: var(--drv3-space-8) 0;
}

/* ── Code blocks inside content ── */
.drv3-content .drv3-code-block {
    margin: var(--drv3-space-8) 0;
}

/* ── Dividers (horizontal rules) ── */
.drv3-content .drv3-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--drv3-glass-border), var(--drv3-accent-dim), var(--drv3-glass-border), transparent);
    margin: var(--drv3-space-10) 0;
}

/* ── Inline formatting inside content ── */
.drv3-content strong,
.drv3-content .drv3-text--bold {
    font-weight: 700;
    color: var(--drv3-text-primary);
}
.drv3-content em,
.drv3-content .drv3-text--italic {
    font-style: italic;
    color: var(--drv3-text-secondary);
}
.drv3-content u,
.drv3-content .drv3-text--underline {
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: var(--drv3-accent-light);
    text-decoration-thickness: 1.5px;
}
.drv3-content s,
.drv3-content .drv3-text--strike {
    text-decoration: line-through;
    opacity: 0.6;
}
.drv3-content .drv3-text--highlight {
    background: linear-gradient(120deg, rgba(99,102,241,0.25) 0%, rgba(34,211,238,0.18) 100%);
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: 600;
}
.drv3-content code,
.drv3-content .drv3-text--code {
    font-family: var(--drv3-font-mono);
    font-size: 0.88em;
    background: var(--drv3-bg-elevated);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--drv3-glass-border);
    color: var(--drv3-accent-cyan);
}
.drv3-content sup,
.drv3-content .drv3-text--sup {
    vertical-align: super;
    font-size: 0.75em;
    line-height: 0;
}
.drv3-content sub,
.drv3-content .drv3-text--sub {
    vertical-align: sub;
    font-size: 0.75em;
    line-height: 0;
}

/* ── Links inside content ── */
.drv3-content a {
    color: var(--drv3-accent-light);
    text-decoration: none;
    border-bottom: 1px solid rgba(129, 140, 248, 0.3);
    transition: border-color var(--drv3-transition), color var(--drv3-transition);
}
.drv3-content a:hover {
    border-bottom-color: var(--drv3-accent-light);
    color: var(--drv3-accent-cyan);
}
.drv3-content .drv3-cite-ref {
    font-size: 0.75em;
    vertical-align: super;
    color: var(--drv3-accent-light);
    cursor: pointer;
    padding: 0 2px;
    transition: color var(--drv3-transition);
    border-bottom: none;
}
.drv3-content .drv3-cite-ref:hover {
    color: var(--drv3-accent-cyan);
    border-bottom: none;
}

.drv3-text--bold      { font-weight: 700; color: var(--drv3-text-primary); }
.drv3-text--italic    { font-style: italic; }
.drv3-text--underline { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--drv3-accent-light); text-decoration-thickness: 1.5px; }
.drv3-text--strike    { text-decoration: line-through; opacity: 0.6; text-decoration-color: var(--drv3-text-muted); }
.drv3-text--highlight {
    background: linear-gradient(120deg, rgba(99,102,241,0.22) 0%, rgba(34,211,238,0.16) 100%);
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: 600;
}
.drv3-text--code {
    font-family: var(--drv3-font-mono);
    font-size: 0.88em;
    background: var(--drv3-bg-elevated);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--drv3-glass-border);
    color: var(--drv3-accent-cyan);
}
.drv3-text--sup { vertical-align: super; font-size: 0.75em; line-height: 0; }
.drv3-text--sub { vertical-align: sub; font-size: 0.75em; line-height: 0; }

.drv3-link {
    color: var(--drv3-accent-light);
    text-decoration: none;
    border-bottom: 1px solid rgba(129, 140, 248, 0.3);
    transition: border-color var(--drv3-transition), color var(--drv3-transition);
}
.drv3-link:hover {
    border-bottom-color: var(--drv3-accent-light);
    color: var(--drv3-accent-cyan);
}

/* Citation references */
.drv3-cite-ref {
    font-size: 0.75em;
    vertical-align: super;
    color: var(--drv3-accent-light);
    cursor: pointer;
    padding: 0 2px;
    transition: color var(--drv3-transition);
}
.drv3-cite-ref:hover { color: var(--drv3-accent-cyan); }

/* Text alignment */
.drv3-align--left    { text-align: left; }
.drv3-align--center  { text-align: center; }
.drv3-align--right   { text-align: right; }
.drv3-align--justify { text-align: justify; }


/* ─── Lists ──────────────────────────────────────────────────────────── */
.drv3-list {
    padding-left: var(--drv3-space-8);
    margin-bottom: var(--drv3-space-6);
    line-height: 1.8;
}
.drv3-list--bullet { list-style-type: disc; }
.drv3-list--bullet .drv3-list--bullet { list-style-type: circle; }
.drv3-list--bullet .drv3-list--bullet .drv3-list--bullet { list-style-type: square; }
.drv3-list--numbered { list-style-type: decimal; }
.drv3-list--numbered .drv3-list--numbered { list-style-type: lower-alpha; }
.drv3-list--numbered .drv3-list--numbered .drv3-list--numbered { list-style-type: lower-roman; }
.drv3-list__item {
    margin-bottom: var(--drv3-space-2);
    color: var(--drv3-text-primary);
    padding-left: var(--drv3-space-1);
}
.drv3-list__item::marker {
    color: var(--drv3-accent-light);
}
.drv3-list--numbered .drv3-list__item::marker {
    color: var(--drv3-accent-cyan);
    font-weight: 600;
    font-family: var(--drv3-font-mono);
    font-size: 0.9em;
}
.drv3-list--nested {
    margin-top: var(--drv3-space-2);
    margin-bottom: var(--drv3-space-1);
    padding-left: var(--drv3-space-6);
}


/* ─── Tables ─────────────────────────────────────────────────────────── */
.drv3-table-wrap {
    overflow-x: auto;
    margin-bottom: var(--drv3-space-8);
    margin-top: var(--drv3-space-4);
    border-radius: var(--drv3-glass-radius);
    border: 1px solid var(--drv3-glass-border);
    background: var(--drv3-bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}
.drv3-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--drv3-text-sm);
    table-layout: auto;
}
.drv3-table thead {
    background: rgba(99, 102, 241, 0.08);
}
.drv3-table th {
    padding: var(--drv3-space-3) var(--drv3-space-4);
    text-align: left;
    font-weight: 700;
    color: var(--drv3-accent-light);
    font-size: var(--drv3-text-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 2px solid rgba(99, 102, 241, 0.2);
    white-space: nowrap;
}
.drv3-table td {
    padding: var(--drv3-space-3) var(--drv3-space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--drv3-text-primary);
    line-height: 1.65;
    vertical-align: top;
}
.drv3-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.015);
}
.drv3-table tbody tr:hover {
    background: var(--drv3-bg-glass-hover);
}
.drv3-table caption {
    caption-side: bottom;
    padding: var(--drv3-space-3) var(--drv3-space-4);
    font-size: var(--drv3-text-xs);
    color: var(--drv3-text-muted);
    text-align: left;
    font-style: italic;
    border-top: 1px solid var(--drv3-glass-border);
}


/* ─── Info Boxes ─────────────────────────────────────────────────────── */
.drv3-infobox {
    background: var(--drv3-bg-glass);
    border: 1px solid var(--drv3-glass-border);
    border-radius: var(--drv3-glass-radius);
    -webkit-backdrop-filter: blur(var(--drv3-glass-blur));
    backdrop-filter: blur(var(--drv3-glass-blur));
    padding: var(--drv3-space-6);
    margin-bottom: var(--drv3-space-8);
    float: right;
    width: 300px;
    margin-left: var(--drv3-space-8);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    border-top: 3px solid var(--drv3-accent);
}
.drv3-infobox__header {
    display: flex;
    align-items: center;
    gap: var(--drv3-space-2);
    margin-bottom: var(--drv3-space-4);
    padding-bottom: var(--drv3-space-3);
    border-bottom: 1px solid var(--drv3-glass-border);
}
.drv3-infobox__title {
    font-size: var(--drv3-text-sm);
    font-weight: 700;
    color: var(--drv3-accent-light);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.drv3-infobox__entry {
    display: flex;
    justify-content: space-between;
    gap: var(--drv3-space-2);
    padding: var(--drv3-space-1) 0;
    font-size: var(--drv3-text-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}
.drv3-infobox__key {
    color: var(--drv3-text-muted);
    font-weight: 500;
}
.drv3-infobox__value {
    color: var(--drv3-text-primary);
    text-align: right;
}


/* ─── Callouts ───────────────────────────────────────────────────────── */
.drv3-callout {
    display: flex;
    gap: var(--drv3-space-4);
    padding: var(--drv3-space-6);
    margin-bottom: var(--drv3-space-8);
    border-radius: 12px;
    border-left: 4px solid;
    background: var(--drv3-bg-glass);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}
.drv3-callout--note       { border-left-color: var(--drv3-accent); background: rgba(99,102,241,0.05); }
.drv3-callout--tip        { border-left-color: var(--drv3-accent-emerald); background: rgba(52,211,153,0.05); }
.drv3-callout--warning    { border-left-color: var(--drv3-accent-amber); background: rgba(251,191,36,0.05); }
.drv3-callout--important  { border-left-color: var(--drv3-accent-rose); background: rgba(251,113,133,0.05); }
.drv3-callout--definition { border-left-color: var(--drv3-accent-violet); background: rgba(167,139,250,0.05); }
.drv3-callout--quote       { border-left-color: var(--drv3-accent-cyan); background: rgba(34,211,238,0.05); }

.drv3-callout__icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}
.drv3-callout__body { flex: 1; }
.drv3-callout__title {
    font-weight: 700;
    font-size: var(--drv3-text-sm);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: var(--drv3-space-1);
}
.drv3-callout__content {
    font-size: var(--drv3-text-sm);
    line-height: 1.8;
    color: var(--drv3-text-secondary);
    text-align: justify;
}


/* ─── Blockquotes ────────────────────────────────────────────────────── */
.drv3-blockquote {
    position: relative;
    padding: var(--drv3-space-6) var(--drv3-space-8);
    padding-left: calc(var(--drv3-space-8) + 4px);
    margin: var(--drv3-space-8) 0;
    background: var(--drv3-bg-glass);
    border-left: 4px solid var(--drv3-accent);
    border-radius: 0 12px 12px 0;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}
.drv3-blockquote::before {
    content: '\201C';
    position: absolute;
    top: -8px;
    left: 16px;
    font-family: var(--drv3-font-serif);
    font-size: 4rem;
    color: var(--drv3-accent-dim);
    line-height: 1;
    pointer-events: none;
}
.drv3-blockquote__text {
    font-family: var(--drv3-font-serif);
    font-size: var(--drv3-text-lg);
    font-style: italic;
    color: var(--drv3-text-secondary);
    line-height: 1.8;
    text-align: justify;
}
.drv3-blockquote__attribution {
    margin-top: var(--drv3-space-3);
    font-size: var(--drv3-text-sm);
    color: var(--drv3-text-muted);
    font-style: normal;
    font-weight: 500;
}


/* ─── Code Blocks ────────────────────────────────────────────────────── */
.drv3-code-block {
    margin-bottom: var(--drv3-space-8);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--drv3-glass-border);
    background: var(--drv3-bg-void);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.drv3-code-block__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--drv3-space-2) var(--drv3-space-4);
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--drv3-glass-border);
}
.drv3-code-block__lang {
    font-size: var(--drv3-text-xs);
    font-weight: 600;
    text-transform: uppercase;
    color: var(--drv3-accent-light);
    letter-spacing: 0.06em;
}
.drv3-code-block__copy {
    background: none;
    border: 1px solid var(--drv3-glass-border);
    color: var(--drv3-text-muted);
    font-size: var(--drv3-text-xs);
    padding: 3px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--drv3-transition);
}
.drv3-code-block__copy:hover {
    background: var(--drv3-bg-glass-hover);
    color: var(--drv3-text-primary);
}
.drv3-code-block pre {
    margin: 0;
    padding: var(--drv3-space-4);
    overflow-x: auto;
    font-family: var(--drv3-font-mono);
    font-size: var(--drv3-text-sm);
    line-height: 1.6;
    color: var(--drv3-text-primary);
}


/* ─── Divider ────────────────────────────────────────────────────────── */
.drv3-divider {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--drv3-glass-border), var(--drv3-accent-dim), var(--drv3-glass-border), transparent);
    margin: var(--drv3-space-8) 0;
}


/* ─── Bibliography ───────────────────────────────────────────────────── */
.drv3-bibliography {
    margin-top: var(--drv3-space-16);
    padding-top: var(--drv3-space-10);
    border-top: 2px solid var(--drv3-glass-border);
}
.drv3-bibliography__title {
    font-family: var(--drv3-font-serif);
    font-size: var(--drv3-text-2xl);
    font-weight: 700;
    margin-bottom: var(--drv3-space-6);
}
.drv3-bibliography__list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: ref-counter;
}
.drv3-bibliography__item {
    counter-increment: ref-counter;
    display: flex;
    gap: var(--drv3-space-3);
    padding: var(--drv3-space-3) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    font-size: var(--drv3-text-sm);
    scroll-margin-top: 100px;
    transition: background var(--drv3-transition);
}
.drv3-bibliography__item.is-highlighted {
    background: rgba(99, 102, 241, 0.08);
    border-radius: 8px;
    padding: var(--drv3-space-3);
}
.drv3-bibliography__number {
    font-family: var(--drv3-font-mono);
    font-size: var(--drv3-text-xs);
    color: var(--drv3-accent-light);
    min-width: 2.5ch;
    padding-top: 2px;
}
.drv3-bibliography__number::before {
    content: "[" counter(ref-counter) "]";
}
.drv3-bibliography__content {
    flex: 1;
}
.drv3-bibliography__source-title {
    font-weight: 600;
    color: var(--drv3-text-primary);
    margin-bottom: 2px;
}
.drv3-bibliography__link {
    color: var(--drv3-accent-light);
    font-size: var(--drv3-text-xs);
    word-break: break-all;
    text-decoration: none;
}
.drv3-bibliography__link:hover { text-decoration: underline; }
.drv3-bibliography__meta {
    display: flex;
    gap: var(--drv3-space-3);
    align-items: center;
    margin-top: 2px;
}
.drv3-bibliography__quality {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 1px 6px;
    border-radius: 4px;
}
.drv3-bibliography__quality--academic    { background: rgba(34,211,238,0.12); color: var(--drv3-accent-cyan); }
.drv3-bibliography__quality--news        { background: rgba(251,191,36,0.12); color: var(--drv3-accent-amber); }
.drv3-bibliography__quality--encyclopedia { background: rgba(52,211,153,0.12); color: var(--drv3-accent-emerald); }
.drv3-bibliography__quality--authoritative { background: rgba(99,102,241,0.12); color: var(--drv3-accent-light); }
.drv3-bibliography__quality--industry    { background: rgba(167,139,250,0.12); color: var(--drv3-accent-violet); }


/* ─── Mobile TOC Controls ────────────────────────────────────────────── */
.drv3-toc-mobile-btn {
    display: none;
    position: fixed;
    bottom: 80px;
    right: var(--drv3-space-4);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--drv3-bg-elevated);
    border: 1px solid var(--drv3-glass-border);
    color: var(--drv3-text-primary);
    cursor: pointer;
    z-index: 100;
    align-items: center;
    justify-content: center;
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    box-shadow: var(--drv3-glass-shadow);
    transition: all var(--drv3-transition);
}
.drv3-toc-mobile-btn:hover {
    background: var(--drv3-accent-dim);
}
.drv3-toc-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 99;
    opacity: 0;
    transition: opacity 300ms ease;
}
.drv3-toc-overlay.is-open {
    opacity: 1;
}

.drv3-scroll-top {
    position: fixed;
    bottom: 140px;
    right: var(--drv3-space-4);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--drv3-bg-elevated);
    border: 1px solid var(--drv3-glass-border);
    color: var(--drv3-text-muted);
    cursor: pointer;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    transition: all var(--drv3-transition);
}
.drv3-scroll-top.is-visible {
    display: flex;
}


/* ─── Timeline Elements ──────────────────────────────────────────────── */
.drv3-timeline {
    position: relative;
    padding-left: var(--drv3-space-8);
    margin-bottom: var(--drv3-space-6);
}
.drv3-timeline::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--drv3-accent), var(--drv3-accent-cyan));
    border-radius: 1px;
}
.drv3-timeline__event {
    position: relative;
    margin-bottom: var(--drv3-space-6);
}
.drv3-timeline__event::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--drv3-space-8) + 1px);
    top: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--drv3-accent);
    border: 2px solid var(--drv3-bg-base);
}
.drv3-timeline__date {
    font-family: var(--drv3-font-mono);
    font-size: var(--drv3-text-xs);
    color: var(--drv3-accent-light);
    margin-bottom: var(--drv3-space-1);
}
.drv3-timeline__content {
    font-size: var(--drv3-text-sm);
    line-height: 1.7;
    text-align: justify;
}


/* ─── Animations ─────────────────────────────────────────────────────── */
@keyframes drv3FadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes drv3SlideIn {
    from { opacity: 0; transform: translateX(-16px); }
    to   { opacity: 1; transform: translateX(0); }
}

.drv3-section {
    animation: drv3FadeIn 500ms var(--drv3-ease-spring) both;
}
.drv3-section:nth-child(1)  { animation-delay: 100ms; }
.drv3-section:nth-child(2)  { animation-delay: 150ms; }
.drv3-section:nth-child(3)  { animation-delay: 200ms; }
.drv3-section:nth-child(4)  { animation-delay: 250ms; }
.drv3-section:nth-child(5)  { animation-delay: 300ms; }
.drv3-section:nth-child(6)  { animation-delay: 350ms; }
.drv3-section:nth-child(7)  { animation-delay: 400ms; }
.drv3-section:nth-child(8)  { animation-delay: 450ms; }
.drv3-section:nth-child(9)  { animation-delay: 500ms; }
.drv3-section:nth-child(10) { animation-delay: 550ms; }


/* ─── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .drv3-layout {
        grid-template-columns: 1fr;
    }
    .drv3-toc {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px;
        background: var(--drv3-bg-base);
        border-right: 1px solid var(--drv3-glass-border);
        padding: var(--drv3-space-8) var(--drv3-space-4);
        z-index: 200;
        overflow-y: auto;
    }
    .drv3-toc.is-mobile-open {
        display: block;
        animation: drv3SlideIn 300ms var(--drv3-ease-spring) both;
    }
    .drv3-toc-overlay.is-open {
        display: block;
    }
    .drv3-toc-mobile-btn {
        display: flex;
    }
    .drv3-infobox {
        float: none;
        width: 100%;
        margin-left: 0;
    }
    .drv3-header__title {
        font-size: var(--drv3-text-3xl);
    }
}

@media (max-width: 640px) {
    .drv3-report {
        padding: var(--drv3-space-4) var(--drv3-space-3);
    }
    .drv3-header__title {
        font-size: var(--drv3-text-2xl);
    }
    .drv3-header__meta {
        flex-direction: column;
        gap: var(--drv3-space-2);
    }
    .drv3-abstract {
        padding: var(--drv3-space-4);
    }
    .drv3-table-wrap {
        margin-left: calc(-1 * var(--drv3-space-3));
        margin-right: calc(-1 * var(--drv3-space-3));
        border-radius: 0;
    }
}


/* ─── Print ──────────────────────────────────────────────────────────── */
@media print {
    .drv3-report         { color: #000; background: #fff; }
    .drv3-layout         { grid-template-columns: 1fr; }
    .drv3-toc            { display: none !important; }
    .drv3-toc-mobile-btn { display: none !important; }
    .drv3-scroll-top     { display: none !important; }
    .drv3-header__title  { color: #000; }
    .drv3-header__subtitle { color: #333; }
    .drv3-header__meta   { color: #555; }
    .drv3-heading        { color: #000; break-after: avoid; }
    .drv3-paragraph      { color: #1a1a1a; text-align: justify; }
    .drv3-content        { color: #1a1a1a; }
    .drv3-lead           { color: #1a1a1a; }
    .drv3-abstract       { background: #f5f5f5; border: 1px solid #ddd; border-left: 4px solid #6366f1; }
    .drv3-abstract__text { color: #333; }
    .drv3-blockquote     { background: #f9f9f9; border-left: 4px solid #6366f1; break-inside: avoid; }
    .drv3-blockquote__text { color: #333; }
    .drv3-callout        { background: #f5f5f5; break-inside: avoid; }
    .drv3-callout__content { color: #333; }
    .drv3-table-wrap     { break-inside: avoid; box-shadow: none; }
    .drv3-table thead    { background: #eee; }
    .drv3-table td       { color: #1a1a1a; }
    .drv3-code-block     { background: #f5f5f5; border: 1px solid #ddd; break-inside: avoid; box-shadow: none; }
    .drv3-infobox        { break-inside: avoid; float: none; width: 100%; background: #f5f5f5; border: 1px solid #ddd; box-shadow: none; }
    .drv3-bibliography   { break-before: page; }
    .drv3-bibliography__title { color: #000; }
    .drv3-bibliography__item { color: #1a1a1a; }
    .drv3-bibliography__link { color: #6366f1; }
    .drv3-link           { color: #6366f1; border-bottom: none; text-decoration: underline; }
    .drv3-content a      { color: #6366f1; border-bottom: none; text-decoration: underline; }
    .drv3-text--highlight { background: #ffffcc !important; }
    .drv3-section        { animation: none !important; break-inside: avoid-page; }
    .drv3-list           { break-inside: avoid; }
}