:root {
    color-scheme: light;
    --bg: #f4f0e8;
    --bg-soft: #e9e2d6;
    --surface: #fffaf1;
    --surface-strong: #ffffff;
    --ink: #1f2523;
    --muted: #5c655f;
    --line: rgba(31, 37, 35, 0.14);
    --dark: #111614;
    --dark-soft: #1b221f;
    --purple: #6b4fd8;
    --blue: #2478d9;
    --teal: #138f91;
    --accent: #595fcf;
    --accent-soft: rgba(89, 95, 207, 0.13);
    --accent-gradient: linear-gradient(112deg, #6b4fd8 0%, #2478d9 52%, #138f91 100%);
    --danger: #b53232;
    --success: #256f46;
    --shadow: 0 24px 70px rgba(31, 37, 35, 0.12);
    --radius: 8px;
    --header-height: 78px;
    --font-head: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="dark"] {
    color-scheme: dark;
    --bg: #111614;
    --bg-soft: #1b221f;
    --surface: #171d1a;
    --surface-strong: #202823;
    --ink: #f4f0e8;
    --muted: #bbc6bd;
    --line: rgba(244, 240, 232, 0.16);
    --accent: #8f83ec;
    --accent-soft: rgba(143, 131, 236, 0.16);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.nav-open {
    overflow: hidden;
}

img,
svg {
    display: block;
    max-width: 100%;
}

svg {
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.7;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    color: inherit;
}

:focus-visible {
    outline: 3px solid var(--blue);
    outline-offset: 3px;
}

::selection {
    background: color-mix(in srgb, var(--purple) 28%, white);
    color: var(--ink);
}

[hidden] {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    left: 18px;
    top: 12px;
    z-index: 1000;
    transform: translateY(-140%);
    background: var(--dark);
    color: #fff;
    padding: 10px 14px;
    border-radius: var(--radius);
}

.skip-link:focus {
    transform: translateY(0);
}

.shell {
    width: min(1180px, calc(100% - 40px));
    margin-inline: auto;
}

.section-pad {
    padding: 108px 0;
}

.section-pad.compact {
    padding: 78px 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    min-height: var(--header-height);
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}

.nav {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.brand-logo {
    display: block;
    width: auto;
    height: 34px;
}

.brand-header {
    min-width: 166px;
}

.brand-logo-reverse {
    display: none;
}

[data-theme="dark"] .brand-header .brand-logo-default {
    display: none;
}

[data-theme="dark"] .brand-header .brand-logo-reverse {
    display: block;
}

.nav-panel {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list a {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    border-radius: 999px;
    padding: 0 13px;
    color: var(--muted);
    font-size: 14px;
    transition: color 180ms ease, background 180ms ease;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
    background: color-mix(in srgb, var(--ink) 8%, transparent);
    color: var(--ink);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-button {
    width: 42px;
    height: 42px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--surface) 82%, transparent);
    cursor: pointer;
}

.nav-toggle.icon-button {
    display: none;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    padding: 0 20px;
    font-weight: 760;
    line-height: 1;
    cursor: pointer;
    transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 10px 28px rgba(63, 83, 181, 0.2);
}

.button-secondary {
    border-color: var(--line);
    background: var(--surface);
    color: var(--ink);
}

.button-ghost {
    border-color: var(--line);
    background: transparent;
}

.button-small {
    min-height: 42px;
    padding-inline: 14px;
    font-size: 14px;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--teal);
    font-size: 13px;
    font-weight: 830;
    text-transform: lowercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    font-family: var(--font-head);
    line-height: 1.02;
    letter-spacing: 0;
}

h1 {
    margin-bottom: 24px;
    font-size: 72px;
    max-width: 980px;
}

h2 {
    margin-bottom: 20px;
    font-size: 48px;
}

h3 {
    margin-bottom: 14px;
    font-size: 25px;
}

p {
    color: var(--muted);
}

.hero {
    padding-top: 82px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(460px, 1.05fr);
    align-items: center;
    gap: 54px;
}

.hero-lead {
    max-width: 760px;
    font-size: 20px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-visual {
    position: relative;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 5 / 3;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.hero-visual::before {
    content: "";
    position: absolute;
    inset: 18px;
    border: 1px solid color-mix(in srgb, var(--ink) 18%, transparent);
    border-radius: var(--radius);
    pointer-events: none;
    z-index: 1;
}

.hero-visual picture,
.hero-visual img {
    width: 100%;
    height: 100%;
}

.hero-visual img {
    object-fit: cover;
}

.brand-line h2 {
    max-width: 1120px;
    margin: 0;
    font-size: 54px;
}

.section-intro {
    max-width: 780px;
    margin-bottom: 42px;
}

.section-intro h2 {
    margin-bottom: 18px;
}

.section-intro p:last-child {
    max-width: 680px;
    font-size: 18px;
}

.intro-light h2,
.intro-light p {
    color: #f4f0e8;
}

.intro-light .eyebrow {
    color: #76d4d0;
}

.model-grid,
.service-grid,
.project-grid,
.insight-grid,
.principle-grid,
.use-case-grid {
    display: grid;
    gap: 18px;
}

.model-grid {
    grid-template-columns: repeat(3, 1fr);
}

.model-card,
.service-card,
.project-card,
.insight-card,
.principle-card,
.use-case-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 28px;
}

.model-card {
    position: relative;
    min-height: 330px;
    display: flex;
    flex-direction: column;
}

.model-card:hover,
.service-card:hover,
.project-card:hover,
.link-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.model-card,
.service-card,
.project-card,
.link-card {
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.card-icon {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: var(--radius);
    background: var(--accent-soft);
    color: var(--accent);
    margin-bottom: 24px;
}

.card-icon svg {
    width: 25px;
    height: 25px;
}

.card-index {
    position: absolute;
    top: 26px;
    right: 26px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}

.model-card p {
    margin-bottom: 0;
}

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

.dark-band {
    background: var(--dark);
    color: #f4f0e8;
}

.dark-band p {
    color: #cad4cb;
}

.split-intro {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.45fr);
    gap: 44px;
    align-items: end;
}

.split-note {
    border-left: 3px solid var(--teal);
    padding-left: 22px;
    font-size: 18px;
}

.system-console {
    display: grid;
    grid-template-columns: minmax(260px, 0.42fr) minmax(0, 0.58fr);
    gap: 18px;
    min-height: 520px;
}

.console-sidebar,
.console-screen {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
}

.console-sidebar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 12px;
    max-height: 620px;
    overflow: auto;
}

.console-tab {
    width: 100%;
    border: 1px solid transparent;
    border-radius: var(--radius);
    background: transparent;
    color: var(--ink);
    text-align: left;
    padding: 12px 14px;
    cursor: pointer;
}

.console-tab span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    margin-bottom: 3px;
}

.console-tab:hover,
.console-tab[aria-selected="true"] {
    border-color: var(--line);
    background: color-mix(in srgb, var(--accent) 13%, var(--surface));
}

.console-screen {
    position: relative;
    overflow: hidden;
}

.console-topbar {
    display: flex;
    gap: 7px;
    padding: 18px;
    border-bottom: 1px solid var(--line);
}

.console-topbar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--line);
}

.console-panel {
    position: absolute;
    inset: 56px 0 0;
    padding: 40px;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
}

.console-panel.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.console-panel h3 {
    max-width: 520px;
    font-size: 42px;
}

.console-panel p {
    max-width: 620px;
    font-size: 18px;
}

.flow-line {
    position: absolute;
    left: 40px;
    right: 40px;
    bottom: 42px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.flow-line span {
    height: 90px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(90deg, color-mix(in srgb, var(--blue) 30%, transparent), transparent 70%),
        color-mix(in srgb, var(--surface) 92%, var(--purple));
    background-size: 180% 100%;
    animation: flowMove 4s linear infinite;
}

.chain-note {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 24px;
    align-items: start;
    border: 1px solid rgba(244, 240, 232, 0.16);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 28px;
    background: var(--dark-soft);
}

.chain-note strong {
    color: #76d4d0;
    font-size: 19px;
}

.chain-note p {
    margin: 0;
}

.timeline-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.timeline-card {
    min-height: 245px;
    border: 1px solid rgba(244, 240, 232, 0.16);
    border-radius: var(--radius);
    background: var(--dark-soft);
    padding: 26px;
}

.timeline-card span,
.process-item span,
.insight-card span,
.use-case-card span,
.chain-item span {
    display: inline-block;
    color: var(--teal);
    font-size: 13px;
    font-weight: 850;
    margin-bottom: 22px;
}

.dark-band .timeline-card span {
    color: #76d4d0;
}

.timeline-card h3 {
    color: #f4f0e8;
}

.service-grid {
    grid-template-columns: repeat(2, 1fr);
}

.service-card {
    min-height: 430px;
}

.service-letter {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: var(--radius);
    background: var(--ink);
    color: var(--bg);
    font-weight: 850;
    margin-bottom: 24px;
}

.service-card ul,
.footer-links,
.contact-aside ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.service-card ul {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.service-card li {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 11px;
    color: var(--muted);
    font-size: 14px;
}

.service-card li svg {
    width: 15px;
    height: 15px;
    color: var(--teal);
}

.section-actions {
    margin-top: 28px;
}

.process-list {
    border-top: 1px solid var(--line);
}

.process-item {
    display: grid;
    grid-template-columns: 90px minmax(160px, 0.32fr) minmax(0, 0.68fr);
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid var(--line);
}

.process-item h3,
.process-item p {
    margin-bottom: 0;
}

.project-grid {
    grid-template-columns: repeat(3, 1fr);
}

.project-card {
    min-height: 280px;
    background: var(--ink);
    color: var(--bg);
}

.project-card p {
    color: color-mix(in srgb, var(--bg) 76%, transparent);
}

.project-card .eyebrow {
    color: #76d4d0;
}

.global-band {
    background: var(--surface);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.global-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(320px, 0.58fr);
    gap: 42px;
    align-items: start;
}

.global-panel,
.page-hero-panel {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 30px;
}

.global-panel p,
.page-hero-panel p {
    font-size: 18px;
}

.pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
}

.pill-list li {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 12px;
    color: var(--muted);
    font-size: 14px;
}

.insight-grid {
    grid-template-columns: repeat(3, 1fr);
}

.insight-card {
    min-height: 270px;
}

.final-cta {
    background: var(--dark);
    color: #f4f0e8;
}

.final-cta-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.78fr) minmax(280px, 0.38fr);
    gap: 36px;
    align-items: center;
}

.final-cta h2 {
    margin-bottom: 0;
}

.final-cta .eyebrow {
    color: #76d4d0;
}

.final-cta p {
    color: #cbd4cc;
}

.final-cta-actions p {
    margin: 18px 0 0;
}

.site-footer {
    background: #0c100f;
    color: #f4f0e8;
    padding: 64px 0 28px;
}

.footer-grid {
    display: grid;
    grid-template-columns: minmax(260px, 1.2fr) repeat(3, 0.75fr);
    gap: 34px;
}

.footer-brand p {
    max-width: 360px;
    color: #cbd4cc;
}

.brand-footer .brand-logo {
    height: 40px;
}

.site-footer h2 {
    font-size: 15px;
    margin-bottom: 14px;
}

.footer-links {
    display: grid;
    gap: 9px;
}

.footer-links a,
.footer-links li {
    color: #cbd4cc;
    font-size: 14px;
}

.footer-links a:hover {
    color: #76d4d0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    margin-top: 52px;
    padding-top: 22px;
    border-top: 1px solid rgba(244, 240, 232, 0.14);
    color: #aeb9b0;
    font-size: 14px;
}

.footer-bottom p {
    margin: 0;
    color: inherit;
}

.footer-utility {
    display: flex;
    align-items: center;
    gap: 18px;
}

.footer-utility button {
    border: 0;
    background: transparent;
    color: inherit;
    padding: 0;
    cursor: pointer;
}

.footer-utility a:hover,
.footer-utility button:hover {
    color: #76d4d0;
}

.cookie-consent {
    position: fixed;
    left: auto;
    right: 20px;
    bottom: 20px;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    width: min(560px, calc(100% - 40px));
    margin-inline: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
    box-shadow: var(--shadow);
    padding: 18px;
}

.cookie-consent[hidden] {
    display: none;
}

.cookie-consent p {
    margin: 4px 0 0;
    font-size: 14px;
}

.cookie-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.page-hero {
    padding-top: 92px;
}

.page-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.84fr) minmax(320px, 0.5fr);
    gap: 42px;
    align-items: start;
}

.page-hero h1 {
    font-size: 64px;
}

.about-copy p {
    margin-bottom: 16px;
}

.link-card-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

.link-card {
    min-height: 170px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 22px;
}

.link-card span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 850;
}

.link-card strong {
    font-size: 19px;
    line-height: 1.18;
}

.link-card svg {
    width: 22px;
    height: 22px;
    color: var(--teal);
}

.feature-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.feature-strip span {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 0 16px;
    font-weight: 760;
}

.chain-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.chain-item,
.use-case-card,
.principle-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 22px;
}

.chain-item {
    min-height: 132px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    font-weight: 770;
}

.use-case-grid,
.principle-grid {
    grid-template-columns: repeat(3, 1fr);
}

.use-case-card h3,
.principle-card h3 {
    margin-bottom: 0;
    font-size: 22px;
}

.principle-card p {
    margin-top: 14px;
    margin-bottom: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.42fr) minmax(0, 0.58fr);
    gap: 28px;
    align-items: start;
}

.contact-aside,
.contact-form {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    padding: 30px;
}

.contact-aside {
    position: sticky;
    top: calc(var(--header-height) + 24px);
}

.contact-aside h2 {
    font-size: 32px;
}

.contact-aside ul {
    display: grid;
    gap: 14px;
}

.contact-aside li {
    display: flex;
    gap: 10px;
    color: var(--muted);
}

.contact-aside svg {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    color: var(--teal);
    margin-top: 4px;
}

.contact-form {
    display: grid;
    gap: 18px;
}

.contact-form label {
    display: grid;
    gap: 8px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 760;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-strong);
    color: var(--ink);
    padding: 13px 14px;
}

.contact-form textarea {
    resize: vertical;
}

.contact-form input:invalid:not(:placeholder-shown),
.contact-form textarea:invalid:not(:placeholder-shown) {
    border-color: var(--danger);
}

.hp-field {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-alert {
    border-radius: var(--radius);
    padding: 12px 14px;
    font-size: 14px;
}

.form-alert-success {
    background: color-mix(in srgb, var(--success) 16%, transparent);
    color: var(--success);
}

.form-alert-error {
    background: color-mix(in srgb, var(--danger) 14%, transparent);
    color: var(--danger);
}

.reveal {
    opacity: 1;
    transform: none;
}

.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 620ms ease, transform 620ms ease;
    transition-delay: var(--delay, 0ms);
}

.js .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes flowMove {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 180% 0;
    }
}

@media (max-width: 1080px) {
    h1 {
        font-size: 58px;
    }

    h2,
    .brand-line h2 {
        font-size: 42px;
    }

    .hero-grid,
    .page-hero-grid,
    .global-grid,
    .split-intro,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        aspect-ratio: 5 / 3;
    }

    .model-grid,
    .project-grid,
    .insight-grid,
    .timeline-grid,
    .use-case-grid,
    .principle-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .link-card-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-aside {
        position: static;
    }
}

@media (max-width: 860px) {
    .nav-toggle.icon-button {
        display: inline-grid;
    }

    .nav-panel {
        position: fixed;
        inset: var(--header-height) 0 auto 0;
        display: grid;
        gap: 18px;
        padding: 22px 20px 28px;
        background: var(--bg);
        border-bottom: 1px solid var(--line);
        box-shadow: var(--shadow);
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: transform 200ms ease, opacity 200ms ease, visibility 0s linear 200ms;
    }

    .nav-panel.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transition-delay: 0s;
    }

    .nav-list {
        display: grid;
        gap: 4px;
    }

    .nav-list a {
        width: 100%;
        justify-content: flex-start;
        border-radius: var(--radius);
        font-size: 18px;
        padding-inline: 10px;
    }

    .nav-actions {
        justify-content: space-between;
    }

    .section-pad {
        padding: 78px 0;
    }

    .hero {
        padding-top: 58px;
    }

    .page-hero h1,
    h1 {
        font-size: 45px;
    }

    h2,
    .brand-line h2 {
        font-size: 34px;
    }

    .hero-lead {
        font-size: 18px;
    }

    .hero-visual {
        min-height: 0;
        height: auto;
        aspect-ratio: 18 / 13;
    }

    .system-console {
        grid-template-columns: 1fr;
        min-height: 720px;
    }

    .console-sidebar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-height: 280px;
    }

    .console-panel h3 {
        font-size: 32px;
    }

    .flow-line {
        grid-template-columns: repeat(2, 1fr);
    }

    .service-grid,
    .chain-grid {
        grid-template-columns: 1fr;
    }

    .process-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .final-cta-grid {
        grid-template-columns: 1fr;
    }

    .cookie-consent {
        left: 20px;
        right: 20px;
        flex-direction: column;
        align-items: stretch;
        width: auto;
    }
}

@media (max-width: 620px) {
    .shell {
        width: min(100% - 28px, 1180px);
    }

    .brand-header {
        min-width: 0;
    }

    .brand-header .brand-logo {
        height: 28px;
    }

    .nav-actions .button {
        width: 100%;
    }

    .hero-actions,
    .cookie-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .button {
        width: 100%;
    }

    .page-hero h1,
    h1 {
        font-size: 37px;
    }

    h2,
    .brand-line h2 {
        font-size: 29px;
    }

    h3 {
        font-size: 22px;
    }

    .model-grid,
    .project-grid,
    .insight-grid,
    .timeline-grid,
    .link-card-grid,
    .footer-grid,
    .use-case-grid,
    .principle-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        min-height: 0;
        height: auto;
        aspect-ratio: 18 / 13;
    }

    .model-card,
    .service-card,
    .project-card,
    .insight-card {
        min-height: auto;
        padding: 22px;
    }

    .console-sidebar {
        grid-template-columns: 1fr;
    }

    .system-console {
        min-height: 820px;
    }

    .console-panel {
        padding: 26px;
    }

    .flow-line {
        left: 26px;
        right: 26px;
        bottom: 26px;
    }

    .chain-note {
        grid-template-columns: 1fr;
    }

    .global-panel,
    .page-hero-panel,
    .contact-aside,
    .contact-form {
        padding: 22px;
    }

    .footer-bottom {
        flex-direction: column;
    }

    .footer-utility {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.001ms !important;
    }

    .js .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Mobile system console refinement — prevents stretched grid tracks and overlapping flow cards. */
@media (max-width: 860px) {
    .site-header {
        background: var(--bg);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .system-console {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto auto;
        align-content: start;
        min-height: 0;
        gap: 14px;
    }

    .console-sidebar {
        display: flex;
        grid-template-columns: none;
        gap: 10px;
        max-height: none;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 10px;
        scroll-snap-type: x proximity;
        scrollbar-width: none;
        overscroll-behavior-inline: contain;
        -webkit-overflow-scrolling: touch;
    }

    .console-sidebar::-webkit-scrollbar {
        display: none;
    }

    .console-tab {
        flex: 0 0 min(78vw, 300px);
        min-height: 88px;
        padding: 14px 16px;
        scroll-snap-align: start;
    }

    .console-screen {
        min-height: 340px;
    }

    .console-panel {
        inset: 55px 0 0;
        display: flex;
        flex-direction: column;
        padding: 24px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .console-panel h3 {
        margin-bottom: 12px;
        font-size: 30px;
    }

    .console-panel p {
        margin-bottom: 0;
        font-size: 17px;
    }

    .flow-line {
        position: static;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 8px;
        margin-top: 26px;
    }

    .flow-line span {
        height: 8px;
        min-height: 8px;
        border: 0;
        border-radius: 999px;
    }
}

@media (max-width: 620px) {
    .system-console {
        min-height: 0;
    }

    .console-tab {
        flex-basis: min(82vw, 292px);
        min-height: 84px;
    }

    .console-screen {
        min-height: 325px;
    }

    .console-panel {
        padding: 22px;
    }

    .console-panel h3 {
        font-size: 27px;
    }

    .console-panel p {
        font-size: 16px;
        line-height: 1.55;
    }

    .flow-line {
        left: auto;
        right: auto;
        bottom: auto;
        margin-top: 22px;
    }
}