:root {
    color-scheme: dark;
    --ink: #f4f1e8;
    --muted: #a7a6a0;
    --muted-strong: #c7c5bd;
    --line: rgba(244, 241, 232, .15);
    --line-strong: rgba(244, 241, 232, .28);
    --panel: #0c0d0f;
    --panel-raised: #111318;
    --page: #050506;
    --cyan: #70e7ff;
    --lime: #c8ff65;
    --coral: #ff826e;
    --violet: #a88cff;
    --gutter: clamp(20px, 3.2vw, 52px);
    --content-width: 1240px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 76px;
}

body {
    margin: 0;
    background:
        linear-gradient(rgba(255, 255, 255, .018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .018) 1px, transparent 1px),
        var(--page);
    background-size: 72px 72px;
    color: var(--ink);
    font-family: Roboto, Arial, sans-serif;
    letter-spacing: -.01em;
}

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

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

h1,
h2,
h3 {
    text-wrap: balance;
}

p {
    text-wrap: pretty;
}

code {
    font-family: "Roboto Mono", Consolas, monospace;
}

.eyebrow {
    margin: 0 0 1rem;
    color: var(--lime);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.skip-link {
    position: fixed;
    left: 1rem;
    top: -5rem;
    z-index: 100;
    padding: .75rem 1rem;
    color: var(--page);
    background: var(--ink);
}

.skip-link:focus {
    top: 1rem;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--line);
    background: rgba(5, 5, 6, .88);
    backdrop-filter: blur(18px);
}

.site-header-inner {
    min-height: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 0 var(--gutter);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    flex: 0 0 auto;
}

.brand-mark {
    position: relative;
    display: inline-block;
    width: 28px;
    height: 28px;
    transform: rotate(-12deg);
}

.brand-mark i {
    position: absolute;
    display: block;
    height: 3px;
    border-radius: 4px;
    background: var(--cyan);
    transform-origin: left;
}

.brand-mark i:nth-child(1) {
    width: 25px;
    left: 2px;
    top: 5px;
    transform: rotate(28deg);
}

.brand-mark i:nth-child(2) {
    width: 20px;
    left: 8px;
    top: 14px;
    transform: rotate(-40deg);
    background: var(--lime);
}

.brand-mark i:nth-child(3) {
    width: 16px;
    left: 2px;
    top: 21px;
    transform: rotate(9deg);
    background: var(--coral);
}

.brand-name {
    font-size: 1.05rem;
    font-weight: 850;
    letter-spacing: .04em;
}

.brand-name span {
    color: var(--cyan);
}

.brand-parent {
    margin-left: .15rem;
    padding-left: .8rem;
    border-left: 1px solid var(--line-strong);
    color: var(--muted);
    font-size: .72rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

nav {
    display: flex;
    align-items: center;
    gap: clamp(.8rem, 1.7vw, 1.6rem);
    color: var(--muted);
    font-size: .84rem;
}

nav a {
    transition: color .2s ease;
}

nav a:hover,
nav a:focus-visible {
    color: var(--ink);
}

.nav-cta {
    padding: .62rem .95rem;
    border-radius: 999px;
    color: var(--page);
    background: var(--ink);
    font-weight: 750;
}

.landing-lede {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(340px, .86fr) minmax(620px, 1.3fr);
    gap: clamp(2rem, 4vw, 5rem);
    align-items: center;
    padding: clamp(2rem, 4vh, 3.5rem) var(--gutter);
    border-bottom: 1px solid var(--line);
}

.hero {
    min-width: 0;
}

.hero h1 {
    max-width: 12ch;
    margin-bottom: 1.5rem;
    font-size: clamp(3.1rem, 5vw, 5.9rem);
    line-height: .91;
    letter-spacing: -.06em;
    font-weight: 720;
}

.hero h1 em {
    color: var(--cyan);
    font-style: normal;
    font-weight: 400;
}

.lede {
    max-width: 49ch;
    margin-bottom: .85rem;
    color: var(--ink);
    font-size: clamp(1.05rem, 1.25vw, 1.28rem);
    line-height: 1.5;
}

.hero-support {
    max-width: 58ch;
    color: var(--muted);
    font-size: .93rem;
    line-height: 1.58;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    margin: 1.8rem 0;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .35rem;
    padding: .85rem 1.15rem;
    border: 1px solid var(--line);
    font-weight: 750;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.button.primary {
    color: #090a08;
    background: var(--lime);
    border-color: var(--lime);
}

.button.secondary:hover,
.button.secondary:focus-visible {
    background: rgba(244, 241, 232, .06);
    border-color: var(--line-strong);
}

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

.complement-note {
    max-width: 58ch;
    margin: 0 0 1.5rem;
    padding: 1rem 1.1rem;
    border-left: 2px solid var(--cyan);
    color: var(--muted);
    background: linear-gradient(90deg, rgba(112, 231, 255, .08), transparent);
    font-size: .82rem;
    line-height: 1.5;
}

.complement-note strong {
    display: block;
    margin-bottom: .18rem;
    color: var(--ink);
}

.hero-start {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.hero-start a {
    padding: .5rem .8rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    font-size: .76rem;
    transition: color .2s ease, border-color .2s ease;
}

.hero-start a:hover,
.hero-start a:focus-visible {
    color: var(--ink);
    border-color: var(--line-strong);
}

/* Four representative, real workbench scenes. */
.atlas {
    min-width: 0;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.atlas-heading {
    flex: 0 0 auto;
    margin-bottom: 1rem;
}

.atlas-heading h2 {
    margin: 0 0 .35rem;
    font-size: clamp(1.65rem, 2.2vw, 2.5rem);
    line-height: 1;
    letter-spacing: -.045em;
}

.atlas-heading > p:last-child {
    margin: 0;
    color: var(--muted);
    font-size: .82rem;
}

.scene-grid {
    min-height: 440px;
    flex: 1 1 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: clamp(.8rem, 1.3vw, 1.2rem);
}

.scene-card {
    position: relative;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--line);
    border-top: 2px solid var(--scene-accent, var(--cyan));
    background: var(--panel);
    box-shadow: 0 20px 50px rgba(0, 0, 0, .18);
}

.scene-media {
    position: relative;
    min-height: 140px;
    flex: 1 1 auto;
    overflow: hidden;
    background: #08090a;
}

.scene-poster {
    position: absolute;
    inset: 0;
    z-index: 2;
    background-position: center;
    background-size: cover;
    transition: opacity .5s ease;
}

.scene-poster::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(5, 5, 6, 0), rgba(5, 5, 6, .35));
}

.scene-embed {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
    opacity: 0;
    transition: opacity .6s ease;
}

.scene-card.is-live .scene-embed {
    opacity: 1;
}

.scene-card.is-live .scene-poster {
    opacity: 0;
    pointer-events: none;
}

.live-badge {
    position: absolute;
    z-index: 4;
    top: .6rem;
    left: .6rem;
    padding: .35rem .55rem;
    border: 1px solid var(--line);
    color: var(--ink);
    background: rgba(5, 5, 6, .72);
    backdrop-filter: blur(10px);
    font-size: .62rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity .4s ease;
}

.scene-card.is-live .live-badge {
    opacity: 1;
}

.live-badge i {
    display: inline-block;
    width: 6px;
    height: 6px;
    margin-right: .35rem;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 8px var(--lime);
}

.scene-quick {
    position: absolute;
    z-index: 4;
    right: .6rem;
    bottom: .6rem;
    padding: .45rem .7rem;
    border: 1px solid var(--line);
    color: var(--ink);
    background: rgba(5, 5, 6, .76);
    backdrop-filter: blur(10px);
    font: inherit;
    font-size: .7rem;
    font-weight: 750;
    cursor: pointer;
    transition: background .2s ease, opacity .3s ease;
}

.scene-quick:hover,
.scene-quick:focus-visible {
    color: var(--page);
    background: var(--scene-accent, var(--cyan));
}

.scene-card.is-live .scene-quick,
.scene-card[data-state="loading"] .scene-quick {
    opacity: 0;
    pointer-events: none;
}

.scene-foot {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .55rem .8rem .6rem;
    border-top: 1px solid var(--line);
}

.scene-foot-text {
    min-width: 0;
    flex: 1;
}

.scene-kind {
    margin: 0 0 .1rem;
    color: var(--muted);
    font-size: .58rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.scene-kind span {
    color: var(--scene-accent, var(--cyan));
    font-weight: 800;
}

.scene-foot h3 {
    margin: 0;
    overflow: hidden;
    font-size: 1rem;
    line-height: 1.05;
    letter-spacing: -.02em;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.scene-metrics-line {
    margin: .18rem 0 0;
    overflow: hidden;
    color: var(--muted);
    font-size: .66rem;
    line-height: 1.2;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.scene-metrics-line strong {
    color: var(--ink);
    font-weight: 700;
}

.scene-metrics-line i {
    margin: 0 .4rem;
    opacity: .5;
    font-style: normal;
}

.scene-open {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .4rem .7rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--scene-accent, var(--cyan));
    font-size: .72rem;
    font-weight: 750;
    transition: background .2s ease, border-color .2s ease;
}

.scene-open:hover,
.scene-open:focus-visible {
    border-color: var(--scene-accent, var(--cyan));
    background: rgba(244, 241, 232, .06);
}

.scene-error {
    grid-column: 1 / -1;
    color: var(--coral);
}

/* Long-form public information architecture. */
.content-section {
    width: min(calc(100% - (2 * var(--gutter))), var(--content-width));
    margin: 0 auto;
    padding: clamp(2.5rem, 5vw, 4.5rem) 0;
    border-bottom: 1px solid var(--line);
}

.section-heading {
    max-width: 820px;
    margin-bottom: clamp(1.8rem, 3vw, 2.6rem);
}

.section-heading.compact {
    margin-bottom: 2rem;
}

.section-heading h2,
.final-cta h2 {
    margin-bottom: 1.2rem;
    font-size: clamp(2.2rem, 4.5vw, 4.6rem);
    line-height: .98;
    letter-spacing: -.055em;
}

.section-heading > p:last-child,
.final-cta > p {
    max-width: 64ch;
    color: var(--muted);
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    line-height: 1.6;
}

.evidence-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    border: 1px solid var(--line);
    background: var(--line);
}

.evidence-grid article {
    min-height: 220px;
    padding: clamp(1.5rem, 3vw, 2.5rem);
    background: var(--panel);
}

.card-index {
    display: block;
    margin-bottom: 1.5rem;
    color: var(--lime);
    font-size: .68rem;
    font-weight: 750;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.evidence-grid h3,
.about-grid h3,
.own-output h3,
.logistics-lab h3 {
    margin-bottom: .8rem;
    font-size: clamp(1.35rem, 2vw, 2rem);
    letter-spacing: -.035em;
}

.evidence-grid p,
.about-grid p,
.own-output p,
.logistics-lab p,
.name-note {
    color: var(--muted);
    line-height: 1.65;
}

.principle-callout {
    display: grid;
    grid-template-columns: minmax(220px, .5fr) 1fr;
    gap: 2rem;
    margin-top: 1rem;
    padding: 1.3rem 1.5rem;
    border-left: 2px solid var(--cyan);
    background: linear-gradient(90deg, rgba(112, 231, 255, .08), transparent);
    color: var(--muted);
    line-height: 1.5;
}

.principle-callout strong {
    color: var(--ink);
}

.inspection-section {
    display: grid;
    grid-template-columns: minmax(260px, .55fr) 1fr;
    gap: 4rem;
}

.inspection-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--line);
    list-style: none;
}

.inspection-list li {
    position: relative;
    padding: 1rem 1rem 1rem 1.6rem;
    border-bottom: 1px solid var(--line);
    color: var(--muted-strong);
}

.inspection-list li::before {
    content: "";
    position: absolute;
    left: .1rem;
    top: 1.4rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cyan);
}

.tutorial-steps {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--line);
    list-style: none;
}

.tutorial-steps li {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--line);
}

.step-number {
    color: var(--cyan);
    font-size: 1.7rem;
    font-weight: 300;
    font-variant-numeric: tabular-nums;
}

.tutorial-steps h3 {
    margin-bottom: .55rem;
    font-size: 1.35rem;
}

.tutorial-steps p {
    max-width: 72ch;
    margin-bottom: .7rem;
    color: var(--muted);
    line-height: 1.6;
}

.tutorial-steps a {
    color: var(--lime);
    font-size: .84rem;
    font-weight: 750;
}

.own-output {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, .82fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
    margin-top: 5rem;
    padding: clamp(2rem, 5vw, 4.5rem);
    border: 1px solid var(--line);
    background: radial-gradient(circle at 100% 0, rgba(168, 140, 255, .12), transparent 40%), var(--panel);
}

.inline-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    margin-top: 1.7rem;
}

.contract-card {
    overflow: hidden;
    border: 1px solid var(--line);
    background: #07080a;
    box-shadow: 0 28px 80px rgba(0, 0, 0, .28);
}

.contract-card-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: .8rem 1rem;
    border-bottom: 1px solid var(--line);
    color: var(--muted);
    font-size: .68rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.contract-card pre {
    margin: 0;
    padding: 1.2rem;
    overflow-x: auto;
    color: var(--cyan);
    font-size: .78rem;
    line-height: 1.7;
}

.contract-card p {
    margin: 0;
    padding: 1rem;
    border-top: 1px solid var(--line);
    font-size: .78rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    border: 1px solid var(--line);
    background: var(--line);
}

.about-grid article {
    padding: clamp(1.8rem, 4vw, 3.5rem);
    background: var(--panel);
}

.logistics-lab {
    display: grid;
    grid-template-columns: minmax(240px, .55fr) 1fr;
    gap: 3rem;
    align-items: start;
    margin-top: 1rem;
    padding: clamp(2rem, 4vw, 3.5rem);
    border: 1px solid var(--line);
    background: linear-gradient(120deg, rgba(200, 255, 101, .08), transparent 45%);
}

.lab-wordmark {
    font-size: clamp(2.2rem, 4vw, 4.2rem);
    font-weight: 800;
    line-height: .9;
    letter-spacing: -.06em;
}

.lab-wordmark span {
    display: block;
    color: var(--lime);
    font-weight: 300;
}

.name-note {
    max-width: 74ch;
    margin: 2rem 0 0;
    padding-left: 1.2rem;
    border-left: 2px solid var(--violet);
    font-size: .9rem;
}

.name-note strong {
    color: var(--ink);
}

.final-cta {
    width: min(calc(100% - (2 * var(--gutter))), var(--content-width));
    margin: 0 auto;
    padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.final-cta h2 {
    max-width: 15ch;
}

.site-footer {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 3rem;
    padding: 2.5rem var(--gutter);
    border-top: 1px solid var(--line);
    color: var(--muted);
    background: rgba(0, 0, 0, .22);
    font-size: .78rem;
}

.footer-brand {
    color: var(--ink);
}

.site-footer p {
    margin: .8rem 0 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 1.3rem;
}

.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--ink);
}

/* Optional single-scene presentation retained for comparison and embeds. */
.scene-grid.is-carousel {
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: clamp(.8rem, 1.4vw, 1.25rem);
}

.carousel-stage {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
    border: 1px solid var(--line);
    background: var(--panel);
}

.carousel-stage .scene-media {
    aspect-ratio: 16 / 9;
}

.carousel-stage .scene-embed {
    opacity: 1;
}

.carousel-caption {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    border-left: 1px solid var(--line);
}

.carousel-caption h3 {
    font-size: 1.6rem;
    line-height: 1;
    letter-spacing: -.03em;
}

.carousel-caption .scene-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    margin: 1rem 0;
    border: 1px solid var(--line);
    background: var(--line);
}

.carousel-caption .scene-metrics div {
    padding: .55rem;
    background: var(--panel);
}

.carousel-caption .scene-metrics strong,
.carousel-caption .scene-metrics span {
    display: block;
}

.carousel-caption .scene-metrics strong {
    font-size: .95rem;
}

.carousel-caption .scene-metrics span {
    color: var(--muted);
    font-size: .64rem;
    line-height: 1.1;
}

.carousel-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--line);
}

.carousel-selector button {
    padding: .8rem 1rem;
    border: 0;
    border-right: 1px solid var(--line);
    color: var(--muted);
    background: transparent;
    text-align: left;
    cursor: pointer;
}

.carousel-selector button:last-child {
    border-right: 0;
}

.carousel-selector button:hover,
.carousel-selector button[aria-selected="true"] {
    color: var(--ink);
    background: var(--panel-raised);
}

.carousel-selector button[aria-selected="true"] {
    box-shadow: inset 0 3px var(--scene-accent, var(--cyan));
}

.carousel-selector small,
.carousel-selector strong {
    display: block;
}

.carousel-selector small {
    margin-bottom: .5rem;
    font-size: .64rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.carousel-selector strong {
    font-size: .92rem;
}

@media (min-width: 1261px) and (max-height: 820px) {
    .landing-lede {
        align-items: start;
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    .hero h1 {
        font-size: clamp(3rem, 4.4vw, 4.8rem);
    }

    .hero-actions {
        margin: .9rem 0;
    }

    .complement-note {
        margin-bottom: 1rem;
        padding-block: .75rem;
    }

    .scene-grid {
        min-height: 410px;
    }
}

@media (max-width: 1260px) {
    .site-header nav a:nth-child(2),
    .site-header nav a:nth-child(4) {
        display: none;
    }

    .landing-lede {
        min-height: 0;
        grid-template-columns: 1fr;
        gap: 3rem;
        padding-top: 5rem;
        padding-bottom: 5rem;
    }

    .hero {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(300px, .75fr);
        column-gap: 3rem;
        align-items: start;
    }

    .hero .eyebrow,
    .hero h1,
    .hero .lede,
    .hero .hero-support {
        grid-column: 1;
    }

    .hero .hero-actions,
    .hero .complement-note,
    .hero .hero-start {
        grid-column: 2;
    }

    .hero .hero-actions {
        grid-row: 2 / span 2;
        align-self: end;
    }

    .hero .complement-note {
        grid-row: 4 / span 2;
        margin-top: 1rem;
    }

    .scene-grid {
        height: min(70vw, 720px);
        flex: none;
    }
}

@media (max-width: 900px) {
    .brand-parent,
    .site-header nav > a:not(.nav-cta) {
        display: none;
    }

    .hero {
        display: block;
    }

    .hero h1 {
        font-size: clamp(3rem, 10vw, 5.4rem);
    }

    .scene-grid {
        height: auto;
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .scene-media {
        flex: 0 0 auto;
        aspect-ratio: 16 / 9;
    }

    .evidence-grid,
    .about-grid,
    .own-output,
    .logistics-lab,
    .inspection-section {
        grid-template-columns: 1fr;
    }

    .evidence-grid article {
        min-height: 0;
    }

    .inspection-section {
        gap: 1rem;
    }

    .principle-callout {
        grid-template-columns: 1fr;
        gap: .4rem;
    }

    .carousel-stage {
        grid-template-columns: 1fr;
    }

    .carousel-caption {
        border-top: 1px solid var(--line);
        border-left: 0;
    }

    .carousel-selector {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 620px) {
    html {
        scroll-padding-top: 68px;
    }

    .site-header-inner {
        min-height: 56px;
    }

    .landing-lede {
        padding-top: 3.4rem;
    }

    .hero h1 {
        font-size: clamp(2.75rem, 14vw, 4.3rem);
    }

    .scene-foot {
        align-items: flex-end;
    }

    .inspection-list {
        grid-template-columns: 1fr;
    }

    .tutorial-steps li {
        grid-template-columns: 58px minmax(0, 1fr);
        gap: .8rem;
    }

    .step-number {
        font-size: 1.2rem;
    }

    .own-output {
        padding: 1.25rem;
    }

    .contract-card pre {
        font-size: .68rem;
    }

    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-links {
        justify-content: flex-start;
    }
}

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

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}