/*
 * Balantium Pro — professional surface overrides (v9)
 * Loaded after main.css; tightens nav, hero, typography, removes cartoon glow.
 */

:root {
    --nav-height: 64px;
    --scroll-anchor-gap: 12px;
    --font-primary: "Plus Jakarta Sans", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: "Plus Jakarta Sans", "Inter", sans-serif;
    --background: #08090c;
    --surface: #101218;
    --surface-elevated: #181c26;
    --surface-glass: rgba(8, 9, 12, 0.88);
    --text-primary: #e8eaef;
    --text-secondary: #9aa3b5;
    --text-tertiary: #6b7385;
    --primary: #6b8fd4;
    --primary-dark: #4a6ba8;
    --accent: #5ec9c6;
    --border: rgba(107, 143, 212, 0.12);
    --border-glow: rgba(107, 143, 212, 0.28);
    --gradient-primary: linear-gradient(160deg, #08090c 0%, #101828 45%, #0f1419 100%);
    --hero-min: 72vh;
}

html {
    height: auto;
    overflow-y: auto;
    scroll-padding-top: calc(var(--nav-height) + var(--scroll-anchor-gap));
    -webkit-overflow-scrolling: touch;
}

body {
    overflow-x: hidden;
    overflow-y: auto;
    min-height: 100%;
    position: relative;
}

body::before {
    opacity: 0.15;
}

.main-organism {
    overflow: visible;
}

#particles-js,
#particles-js canvas {
    pointer-events: none !important;
}

section[id],
.page-hero,
.gallery-page-hero,
.evaluation-banner {
    scroll-margin-top: calc(var(--nav-height) + var(--scroll-anchor-gap));
}

/* Nav */
.nav-cortex.scrolled {
    box-shadow: 0 1px 0 var(--border), 0 8px 24px rgba(0, 0, 0, 0.35);
}

.nav-container {
    height: var(--nav-height);
    gap: 1rem;
}

.nav-logo {
    gap: 0.625rem;
}

.nav-logo-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
}

.nav-logo-link:hover .logo-text {
    color: var(--accent);
}

.nav-logo .logo-img {
    height: 32px;
    width: 32px;
    filter: none;
}

.nav-logo .logo-img--dynamic {
    height: 36px;
    width: 36px;
}

.nav-logo-copy {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    line-height: 1.2;
    min-width: 0;
}

.nav-logo .logo-text {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    background: none;
    -webkit-text-fill-color: var(--text-primary);
    color: var(--text-primary);
}

.brand-motto,
.footer-motto {
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-tertiary);
}

.footer-motto {
    margin-top: 0.5rem;
    font-style: italic;
    text-transform: none;
    letter-spacing: 0.06em;
    font-size: 0.75rem;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-top: 0.35rem;
}

.nav-logo a:hover .logo-text {
    filter: none;
    color: var(--accent);
}

.nav-links {
    gap: 1.25rem;
}

.nav-link {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.nav-link:hover {
    animation: none;
    color: var(--text-primary);
}

.nav-link-cta {
    padding: 0.4rem 1rem;
    font-size: 0.8125rem;
    background: var(--primary);
    border-radius: 6px;
}

/* Hero */
.hero-section {
    min-height: auto;
    margin-top: 0 !important;
    background: var(--gradient-primary);
    background-size: 100% 100%;
    animation: none;
    padding: calc(var(--nav-height) + 2rem) 1.25rem 3.5rem;
    border-bottom: 1px solid var(--border);
    overflow: visible !important;
    touch-action: pan-y;
    align-items: flex-start;
}

@media (min-width: 769px) {
    .hero-section {
        min-height: max(28rem, calc(100vh - var(--nav-height)));
        align-items: center;
        padding: calc(var(--nav-height) + 3rem) 1.5rem 5rem;
    }
}

.hero-section::before {
    display: none;
}

.hero-logo-dynamic {
    display: block;
    margin: 0 auto 1.5rem;
    opacity: 0.92;
}

.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.02em;
    max-width: 52rem;
    margin: 0 auto 2.5rem;
    background: none;
    -webkit-text-fill-color: var(--text-primary);
    color: var(--text-primary);
    text-align: center;
}

.metrics-grid {
    gap: 1.25rem;
    max-width: 56rem;
    margin-bottom: 0.5rem;
}

.metric-card {
    padding: 1.5rem 1.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: none;
}

.metric-card:hover {
    transform: none;
    box-shadow: 0 0 0 1px var(--border-glow);
}

.metric-value {
    font-size: 1.25rem;
    font-weight: 600;
    background: none;
    -webkit-text-fill-color: var(--text-primary);
}

.ssrn-badge {
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 1.25rem 1.5rem;
    border-radius: 8px;
    max-width: 40rem;
    margin: 0 auto 2rem;
}

.metric-description {
    margin-top: 0.5rem;
    line-height: 1.55;
}

.ssrn-badge .badge-icon {
    display: none;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    background: none !important;
    background-clip: border-box !important;
    -webkit-background-clip: border-box !important;
    -webkit-text-fill-color: var(--text-primary) !important;
    color: var(--text-primary);
    line-height: 1.3;
    overflow: visible;
    padding-top: 0.125rem;
    scroll-margin-top: calc(var(--nav-height) + var(--scroll-anchor-gap));
    margin-top: 0;
    margin-bottom: 1.25rem;
}

.page-hero h1,
.gallery-page-hero .hero-title {
    scroll-margin-top: calc(var(--nav-height) + var(--scroll-anchor-gap));
    line-height: 1.25;
    overflow: visible;
}

.section-subtitle {
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: 3rem;
}

.section {
    padding: 5.5rem 0;
}

@media (max-width: 768px) {
    .section {
        padding: 4rem 0;
    }
}

.section > .container > .section-title + .section-subtitle {
    margin-top: -0.25rem;
}

.features-grid,
.products-grid,
.platform-stats-grid,
.use-cases-grid,
.tech-grid {
    gap: 1.75rem;
    margin-top: 0.5rem;
}

.feature-card,
.product-card,
.use-case-card,
.platform-stat-card {
    padding: 1.75rem;
    gap: 0.875rem;
}

.feature-card h3,
.product-card h3 {
    margin-bottom: 0.25rem;
}

.feature-card p,
.product-card p {
    line-height: 1.65;
}

.product-card .btn {
    margin-top: 0.75rem;
}

.evaluation-banner {
    padding: 2.5rem 2.75rem;
}

.evaluation-banner h2 {
    margin-bottom: 0.75rem;
}

.evaluation-banner .product-name {
    margin: 1rem 0 0.75rem;
}

.evaluation-banner p {
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.evaluation-banner ul.checklist {
    margin: 1.75rem 0 2rem;
    gap: 0.65rem 1.25rem;
}

.evaluation-banner .btn {
    margin-top: 0.5rem;
}

.cta-buttons {
    margin-top: 2.25rem;
    gap: 1rem;
}

.feature-icon,
.case-icon,
.tech-icon-large {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    color: var(--accent);
}

.feature-card,
.tech-card-flat,
.use-case-card,
.product-card {
    border-radius: 8px;
    box-shadow: none;
    border: 1px solid var(--border);
}

.btn-primary {
    animation: none;
    background: var(--primary);
    color: #fff;
    box-shadow: none;
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(107, 143, 212, 0.25);
    transform: translateY(-1px);
}

.btn::before {
    display: none;
}

/* Architecture diagram */
.architecture-block {
    display: grid;
    gap: 3rem;
    align-items: start;
    margin-top: 0.5rem;
}

.architecture-copy p {
    margin-bottom: 1.25rem;
}

@media (min-width: 900px) {
    .architecture-block {
        grid-template-columns: 1fr 1.1fr;
    }
}

.architecture-diagram {
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.architecture-copy h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.architecture-layer-list,
.equation-ring-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: grid;
    gap: 0.5rem;
}

.architecture-layer-list li,
.equation-ring-list li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding-left: 1rem;
    border-left: 2px solid var(--primary);
}

.architecture-layer-list strong,
.equation-ring-list strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Gallery */
.gallery-teaser-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1.25rem;
    margin-top: 0.5rem;
}

.gallery-teaser-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
    transition: border-color 0.2s ease;
}

.gallery-teaser-card:hover {
    border-color: var(--border-glow);
}

.gallery-teaser-card img {
    width: 100%;
    aspect-ratio: 1;
    min-height: 140px;
    display: block;
    object-fit: contain;
    background: #06070a;
}

.gallery-teaser-meta {
    padding: 0.75rem 1rem;
    font-size: 0.8125rem;
}

.gallery-teaser-meta strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.gallery-page-hero {
    padding: calc(var(--nav-height) + 3rem) 0 4rem;
    margin-top: 0;
    border-bottom: 1px solid var(--border);
    background: var(--gradient-primary);
}

.gallery-page-hero .section-subtitle {
    margin-bottom: 0;
    max-width: 40rem;
    margin-left: auto;
    margin-right: auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.gallery-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}

.gallery-card-visual {
    position: relative;
    aspect-ratio: 1;
    min-height: 220px;
    background: #12151c;
    line-height: 0;
    border-bottom: 1px solid var(--border);
}

.gallery-card-visual img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    background: #06070a;
}

/* Art grids must not stay invisible (fade-in + IO misses on mobile) */
.gallery-grid.fade-in,
.gallery-teaser-grid.fade-in {
    opacity: 1;
    transform: none;
}

.gallery-grid.fade-in.visible,
.gallery-teaser-grid.fade-in.visible {
    opacity: 1;
    transform: none;
}

.gallery-domain-tag {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.gallery-moment,
.gallery-origin,
.gallery-significance {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 0.85rem;
}

.gallery-moment strong,
.gallery-origin strong,
.gallery-significance strong {
    color: var(--text-primary);
    font-weight: 600;
}

.gallery-steps {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
    display: grid;
    gap: 1.75rem;
}

.gallery-steps li {
    padding-left: 1rem;
    border-left: 2px solid var(--primary);
}

.gallery-steps li p {
    margin: 0.35rem 0 0;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.gallery-steps li strong {
    color: var(--text-primary);
    font-size: 1rem;
}

.gallery-card-body {
    padding: 1.5rem 1.625rem 1.75rem;
}

.gallery-card-body h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.gallery-card-body .role {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.gallery-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.gallery-metrics span {
    padding: 0.2rem 0.5rem;
    background: var(--surface-elevated);
    border-radius: 4px;
}

.beings-list {
    margin: 2rem 0;
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
}

.beings-list dt {
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1rem;
}

.beings-list dt:first-child {
    margin-top: 0;
}

.beings-list dd {
    margin: 0.25rem 0 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.prose-narrow {
    max-width: 42rem;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.prose-narrow p + p {
    margin-top: 1.25rem;
}

.prose-narrow .section-title {
    margin-bottom: 1.5rem;
}

.section-narrow .section-title {
    margin-bottom: 1rem;
}

.section-narrow .section-subtitle {
    margin-bottom: 2.75rem;
}

.contact-container {
    margin-top: 2.5rem;
    gap: 2.5rem;
}

.contact-form {
    padding: 2.25rem 2.5rem;
}

.contact-form .form-group {
    margin-bottom: 1.35rem;
}

.contact-info {
    padding: 2rem 1.75rem;
}

.contact-info p + p {
    margin-top: 0.65rem;
}

.contact-note {
    margin-top: 1.25rem;
    line-height: 1.65;
}

.contact-email-panel {
    max-width: 36rem;
    margin: 0 auto;
    text-align: center;
    padding: 2.5rem 2rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
        gap: 1.25rem;
    }
    .form-row .form-group {
        margin-bottom: 1.35rem;
    }
}

.label-required {
    color: var(--accent);
    font-weight: var(--weight-semibold);
}

.label-optional {
    text-transform: none;
    letter-spacing: 0;
    font-weight: var(--weight-normal);
    color: var(--text-tertiary);
    font-size: 0.8125rem;
}

.contact-form .form-group label {
    text-transform: none;
    letter-spacing: 0.02em;
    font-size: 0.875rem;
}

.contact-form select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239aa3b5' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.contact-form-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    margin-top: 0.5rem;
}

.contact-form-fallback {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.contact-form-fallback a {
    color: var(--accent);
    text-decoration: none;
}

.contact-form-fallback a:hover {
    color: var(--primary);
}

.contact-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem;
}

.contact-benefits li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.85rem;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-benefits li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.85;
}

.contact-email-lead {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.contact-email-address {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
}

.contact-email-address a {
    color: var(--accent);
    text-decoration: none;
}

.contact-email-address a:hover {
    color: var(--primary);
}

.contact-email-actions {
    justify-content: center;
    margin-bottom: 1.5rem;
}

.contact-email-notes {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    line-height: 1.65;
}

.contact-email-notes li {
    padding: 0.35rem 0;
    padding-left: 1rem;
    border-left: 2px solid var(--border);
    margin-bottom: 0.5rem;
}

.section-cta-row {
    text-align: center;
    margin-top: 2.75rem;
}

.section-title--left,
.section-subtitle--left {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    max-width: none;
}

/* Subpages (founder, products, data-forge) — clear fixed nav at scroll 0 */
.page-hero {
    padding-top: calc(var(--nav-height) + 2.75rem) !important;
    margin-top: 0 !important;
}

.page-hero .breadcrumb {
    margin-bottom: 1rem;
}

.page-hero h1 {
    padding-top: 0.125rem;
    overflow: visible;
    line-height: 1.25;
}

body:not(.menu-open) {
    overflow-y: auto !important;
    touch-action: pan-y;
}

body.menu-open {
    overflow: hidden;
    touch-action: none;
}

@media (max-width: 1023px) {
    .nav-hamburger {
        display: flex;
        min-width: 44px;
        min-height: 44px;
        align-items: center;
        justify-content: center;
    }

    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        max-height: calc(100dvh - var(--nav-height));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 1.25rem 1.5rem 1.5rem;
        background: rgba(8, 9, 12, 0.97);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border);
        z-index: calc(var(--z-fixed) - 1);
        gap: 0.5rem;
    }

    .nav-links.mobile-open .nav-link {
        display: block;
        padding: 0.75rem 0;
        font-size: 1rem;
        min-height: 44px;
        line-height: 1.4;
    }

    .nav-links.mobile-open .nav-link-cta {
        text-align: center;
        margin-top: 0.5rem;
    }

    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.375rem;
        margin-bottom: 1rem;
    }

    .section-subtitle {
        font-size: 0.9375rem;
        margin-bottom: 2rem;
    }

    .hero-title {
        font-size: clamp(1.35rem, 5.5vw, 1.75rem);
        margin-bottom: 1.5rem;
    }

    .metrics-grid,
    .features-grid,
    .products-grid,
    .platform-stats-grid,
    .use-cases-grid,
    .publications-grid,
    .docs-grid {
        grid-template-columns: 1fr !important;
    }

    .gallery-grid {
        grid-template-columns: 1fr !important;
        gap: 1.25rem;
    }

    .gallery-teaser-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 22rem;
        margin-left: auto;
        margin-right: auto;
    }

    .cta-buttons .btn {
        width: 100%;
        justify-content: center;
        min-height: 44px;
    }

    .contact-container {
        grid-template-columns: 1fr !important;
    }

    .contact-form,
    .contact-info {
        padding: 1.25rem;
    }

    .evaluation-banner {
        padding: 1.25rem 1.5rem;
    }

    .evaluation-banner ul.checklist {
        grid-template-columns: 1fr;
    }

    .architecture-block {
        gap: 2rem;
    }

    .architecture-diagram {
        max-width: 100%;
    }

    .footer-main {
        gap: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }

    .btn {
        min-height: 44px;
    }

    .product-card .btn,
    .feature-card .btn {
        width: 100%;
    }

    .catalog-table-wrap {
        margin-left: -0.25rem;
        margin-right: -0.25rem;
    }

    .page-hero {
        padding-top: calc(var(--nav-height) + 1.5rem);
        padding-bottom: 2rem;
    }

    .page-hero h1 {
        font-size: 1.5rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .nav-logo .logo-text {
        font-size: 0.65rem;
        letter-spacing: 0.08em;
        max-width: 7.5rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .brand-motto {
        font-size: 0.5625rem;
        letter-spacing: 0.08em;
    }

    .gallery-teaser-grid {
        grid-template-columns: 1fr;
    }
}

/* Scroll-to-top affordance */
.scroll-top-btn {
    position: fixed;
    right: 1rem;
    bottom: max(1rem, env(safe-area-inset-bottom));
    z-index: calc(var(--z-fixed) + 1);
    width: 44px;
    height: 44px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface-glass);
    color: var(--text-primary);
    font-size: 1.125rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    backdrop-filter: blur(12px);
}

.scroll-top-btn.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

#logo-field-canvas {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: min(280px, 35vw);
    height: min(280px, 35vw);
    opacity: 0.35;
    pointer-events: none;
    z-index: 0;
}

@media (max-width: 900px) {
    #logo-field-canvas {
        display: none;
    }
}