:root {
    --color-ink: #142126;
    --color-paper: #f4f7f6;
    --color-surface: #ffffff;
    --color-surface-dark: #17272b;
    --color-accent: #347f8b;
    --color-accent-dark: #255f69;
    --color-accent-soft: #dcecef;
    --color-secondary: #6571b8;
    --color-secondary-dark: #4d5793;
    --color-secondary-soft: #e6e8f6;
    --color-success: #2f745d;
    --color-warning: #8a5a1f;
    --color-muted: #647277;
    --color-line: #cfd9d8;
    --color-dark-line: #506166;
    --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
    --container: 78rem;
    --content: 70ch;
    --space-1: .4rem;
    --space-2: .75rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-section: clamp(4.5rem, 9vw, 8rem);
    --focus: 3px solid #125dff;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    color-scheme: light;
    scroll-behavior: smooth;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--color-paper);
    color: var(--color-ink);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image: linear-gradient(rgb(20 33 38 / .035) 1px, transparent 1px), linear-gradient(90deg, rgb(20 33 38 / .035) 1px, transparent 1px);
    background-size: 2.5rem 2.5rem;
    content: "";
    pointer-events: none;
}

h1,
h2,
h3,
p,
ul,
ol,
figure {
    margin-block: 0;
}

h1,
h2,
h3 {
    overflow-wrap: break-word;
    font-weight: 740;
    hyphens: none;
    letter-spacing: -.038em;
    line-height: 1.04;
    text-wrap: balance;
}

h1 {
    max-width: 18ch;
    font-size: clamp(2.55rem, 6vw, 5.8rem);
}

h2 {
    max-width: 18ch;
    font-size: clamp(2rem, 4.6vw, 4rem);
}

h3 {
    font-size: clamp(1.2rem, 2.1vw, 1.65rem);
}

p {
    max-width: var(--content);
    overflow-wrap: break-word;
}

li,
summary,
label {
    overflow-wrap: break-word;
}

a {
    color: inherit;
    text-decoration-thickness: .08em;
    text-underline-offset: .2em;
}

a:hover {
    text-decoration-color: var(--color-accent);
}

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

button,
summary,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    border-radius: 1px;
    outline: var(--focus);
    outline-offset: 4px;
}

::selection {
    background: var(--color-accent-dark);
    color: #fff;
}

.container {
    width: min(calc(100% - 2rem), var(--container));
    margin-inline: auto;
}

.flow > * + * {
    margin-block-start: var(--flow-space, 1.15rem);
}

.skip-link {
    position: fixed;
    top: .75rem;
    left: .75rem;
    z-index: 100;
    padding: .75rem 1rem;
    translate: 0 -200%;
    background: var(--color-ink);
    color: #fff;
    font-weight: 750;
}

.skip-link:focus {
    translate: 0;
}

.site-header {
    position: relative;
    z-index: 20;
    border-bottom: 1px solid var(--color-line);
    background: rgb(244 247 246 / .96);
}

.header-main {
    display: flex;
    min-height: 4.75rem;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.wordmark {
    color: var(--color-ink);
    font-size: clamp(1.15rem, 2.2vw, 1.5rem);
    font-weight: 830;
    letter-spacing: -.06em;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
}

.wordmark span {
    color: var(--color-accent-dark);
    font-weight: 470;
}

.wordmark b {
    color: var(--color-secondary-dark);
}

.desktop-nav {
    display: none;
}

.mobile-nav {
    position: relative;
}

.mobile-nav > summary {
    display: flex;
    min-height: 2.8rem;
    padding: .55rem .7rem;
    align-items: center;
    gap: .55rem;
    border: 1px solid var(--color-ink);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: .73rem;
    font-weight: 750;
    letter-spacing: .08em;
    list-style: none;
    text-transform: uppercase;
}

.mobile-nav > summary::-webkit-details-marker {
    display: none;
}

.mobile-nav > summary span {
    width: .65rem;
    height: .65rem;
    border: 2px solid var(--color-accent-dark);
    background: var(--color-surface);
}

.mobile-nav[open] > summary span {
    background: var(--color-accent-dark);
}

.mobile-nav nav {
    position: absolute;
    top: calc(100% + .5rem);
    right: 0;
    width: min(21rem, calc(100vw - 2rem));
    padding: 1.2rem;
    border: 1px solid var(--color-ink);
    background: var(--color-surface);
    box-shadow: 8px 8px 0 rgb(20 33 38 / .12);
}

.mobile-nav ul,
.desktop-nav ul,
.footer-links,
.trust-list,
.checklist,
.console-stage ul,
.system-map ul {
    padding: 0;
    list-style: none;
}

.mobile-nav li + li {
    border-top: 1px solid var(--color-line);
}

.mobile-nav li a {
    display: block;
    padding: .75rem .15rem;
    font-weight: 650;
    text-decoration: none;
}

.mobile-nav li a[aria-current="page"] {
    color: var(--color-accent-dark);
}

.mobile-nav .button {
    width: 100%;
    margin-block-start: 1rem;
}

.button {
    display: inline-flex;
    min-height: 3.1rem;
    align-items: center;
    justify-content: space-between;
    gap: 1.35rem;
    padding: .72rem .75rem .72rem 1rem;
    border: 1px solid var(--color-accent-dark);
    background: var(--color-accent-dark);
    color: #fff;
    cursor: pointer;
    font-size: .9rem;
    font-weight: 780;
    line-height: 1.2;
    text-decoration: none;
    transition: background-color .16s ease, color .16s ease, translate .16s ease;
}

.button:hover {
    background: var(--color-ink);
    text-decoration: none;
    translate: 0 -2px;
}

.button--secondary {
    border-color: currentColor;
    background: transparent;
    color: var(--color-ink);
}

.button--secondary:hover {
    background: var(--color-ink);
    color: #fff;
}

.button-signal {
    display: grid;
    width: 1.8rem;
    height: 1.8rem;
    flex: none;
    place-items: center;
    border-left: 1px solid currentColor;
    font-size: 1.1rem;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
}

.breadcrumb {
    border-bottom: 1px solid var(--color-line);
    background: var(--color-surface);
}

.breadcrumb ol {
    display: flex;
    margin: 0;
    padding: .72rem 0;
    align-items: center;
    gap: .65rem;
    list-style: none;
    font-family: var(--font-mono);
    font-size: .72rem;
}

.breadcrumb li + li::before {
    margin-inline-end: .65rem;
    color: var(--color-accent-dark);
    content: "→";
}

.breadcrumb a {
    color: var(--color-muted);
}

.home-hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(3.5rem, 6vw, 6rem);
}

.home-hero::after {
    position: absolute;
    right: -7rem;
    bottom: -6rem;
    z-index: -1;
    width: 40rem;
    height: 40rem;
    border: 1px solid var(--color-line);
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-accent-soft) 0 2px, transparent 3px);
    background-size: 1.1rem 1.1rem;
    content: "";
    opacity: .75;
}

.home-hero-grid {
    display: grid;
    gap: var(--space-6);
}

.home-hero-grid > *,
.page-hero-grid > *,
.section-layout > *,
.cta-grid > *,
.footer-grid > * {
    min-width: 0;
}

.hero-copy {
    --flow-space: 1.5rem;
}

.hero-copy h1 {
    max-width: 17ch;
    font-size: clamp(2.35rem, 4.4vw, 4.15rem);
}

.eyebrow,
.section-label,
.profile-label,
.cta-label,
.comparison-label {
    color: var(--color-accent-dark);
    font-family: var(--font-mono);
    font-size: .73rem;
    font-weight: 800;
    letter-spacing: .115em;
    line-height: 1.4;
    text-transform: uppercase;
}

.eyebrow::before {
    display: inline-block;
    width: 1.6rem;
    height: .55rem;
    margin-inline-end: .65rem;
    border-block: 1px solid currentColor;
    vertical-align: -.02em;
    content: "";
}

.section-label {
    display: flex;
    align-items: center;
    gap: .65rem;
}

.section-label span {
    width: .65rem;
    height: .65rem;
    border: 2px solid currentColor;
    background: var(--color-surface);
}

.hero-intro,
.page-intro,
.section-intro {
    color: #34454a;
    font-size: clamp(1.06rem, 1.8vw, 1.28rem);
    line-height: 1.55;
}

.trust-list {
    display: grid;
    margin-block-start: 2rem;
    border-top: 1px solid var(--color-line);
}

.trust-list li {
    position: relative;
    padding: .72rem .25rem .72rem 1.5rem;
    border-bottom: 1px solid var(--color-line);
    font-size: .85rem;
    font-weight: 650;
}

.trust-list li::before {
    position: absolute;
    top: 1.14rem;
    left: .2rem;
    width: .55rem;
    height: .55rem;
    border: 2px solid var(--color-success);
    content: "";
}

.trust-list li::after {
    position: absolute;
    top: 1.38rem;
    left: .75rem;
    width: .45rem;
    height: 1px;
    background: var(--color-success);
    content: "";
}

.flow-console {
    align-self: center;
    border: 1px solid var(--color-ink);
    background: var(--color-surface-dark);
    color: #f5f9f8;
    box-shadow: 10px 10px 0 var(--color-accent-soft);
}

.console-bar {
    display: grid;
    min-height: 2.6rem;
    padding-inline: .8rem;
    align-items: center;
    border-bottom: 1px solid var(--color-dark-line);
    grid-template-columns: .55rem .55rem 1fr;
    gap: .45rem;
}

.console-bar span {
    width: .5rem;
    height: .5rem;
    border: 1px solid #b6c3c5;
}

.console-bar span:first-child {
    background: var(--color-accent);
}

.console-bar p {
    margin-inline-start: .35rem;
    color: #aebbbd;
    font-family: var(--font-mono);
    font-size: .65rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.console-grid {
    display: grid;
    padding: 1rem;
    gap: .65rem;
}

.console-stage {
    min-height: 10rem;
    padding: 1rem;
    border: 1px solid var(--color-dark-line);
    background: #1c3035;
}

.console-stage h2 {
    margin-block-end: .8rem;
    color: #92a0a3;
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.console-stage ul {
    display: grid;
    gap: .48rem;
}

.console-stage li {
    display: flex;
    min-height: 2rem;
    padding: .3rem .5rem;
    align-items: center;
    gap: .5rem;
    border-bottom: 1px solid #3f555a;
    font-size: .8rem;
}

.console-stage li::before {
    width: .48rem;
    height: .48rem;
    flex: none;
    border: 1px solid #93a3a6;
    content: "";
}

.console-stage--process {
    border-color: #5e6cc0;
    background: #222f4b;
}

.console-stage--process li::before {
    border-color: #99a4e3;
    background: var(--color-secondary);
}

.console-stage--output li::before {
    border-color: #65a994;
    background: var(--color-success);
}

.console-route {
    display: grid;
    min-height: 2.7rem;
    align-items: center;
    grid-template-columns: auto 1fr auto;
    gap: .55rem;
    color: #9cabad;
    font-family: var(--font-mono);
    font-size: .65rem;
}

.console-route i {
    height: 1px;
    background: repeating-linear-gradient(90deg, #718287 0 5px, transparent 5px 9px);
}

.console-route b {
    color: #fff;
    font-size: 1rem;
}

.flow-console figcaption {
    padding: .75rem 1rem;
    border-top: 1px solid var(--color-dark-line);
    color: #aebbbd;
    font-size: .69rem;
    line-height: 1.45;
}

.page-hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(4rem, 9vw, 7rem);
    border-bottom: 1px solid var(--color-line);
}

.page-hero::after {
    position: absolute;
    top: 0;
    right: 0;
    z-index: -1;
    width: min(32rem, 45%);
    height: 100%;
    border-left: 1px solid var(--color-line);
    background: repeating-linear-gradient(0deg, transparent 0 1.45rem, rgb(52 127 139 / .12) 1.45rem calc(1.45rem + 1px));
    content: "";
}

.page-hero-grid {
    display: grid;
    gap: 2.5rem;
}

.page-hero h1 {
    max-width: 19ch;
    font-size: clamp(2.45rem, 5.6vw, 5.2rem);
}

.route-stamp {
    display: grid;
    width: min(100%, 13rem);
    padding: 1rem;
    align-self: end;
    border: 1px solid var(--color-accent-dark);
    background: var(--color-surface);
    font-family: var(--font-mono);
    gap: .45rem;
}

.route-stamp span {
    color: var(--color-muted);
    font-size: .63rem;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.route-stamp strong {
    color: var(--color-accent-dark);
    font-size: .76rem;
    letter-spacing: .04em;
}

.route-stamp i {
    height: .45rem;
    background: repeating-linear-gradient(90deg, var(--color-accent-dark) 0 3px, transparent 3px 7px);
}

.section {
    padding-block: var(--space-section);
    border-bottom: 1px solid var(--color-line);
}

.section--light {
    background: var(--color-surface);
}

.section--tint {
    background: var(--color-accent-soft);
}

.section--dark {
    border-color: var(--color-dark-line);
    background: var(--color-surface-dark);
    color: #f5f9f8;
}

.section--dark .section-label,
.section--dark .comparison-label {
    color: #82c0c9;
}

.section--dark .section-label span {
    border-color: #82c0c9;
    background: transparent;
}

.section--dark .section-intro,
.section--dark .node-card p,
.section--dark .pipeline p,
.section--dark .section-note,
.section--dark .prose p {
    color: #c4d0d2;
}

.section--dark .button--secondary {
    color: #fff;
}

.section-layout {
    display: grid;
    gap: var(--space-6);
}

.section-content > * + * {
    margin-block-start: var(--space-5);
}

.section-note {
    display: grid;
    max-width: 68ch;
    padding: 1rem 1.1rem;
    border: 1px solid var(--color-line);
    border-left: 4px solid var(--color-warning);
    background: rgb(255 255 255 / .45);
    grid-template-columns: 1.5rem 1fr;
    gap: .55rem;
    color: #425257;
    font-size: .9rem;
}

.section-note > span {
    color: var(--color-warning);
    font-family: var(--font-mono);
    font-weight: 850;
}

.section--dark .section-note {
    border-color: var(--color-dark-line);
    background: #20343a;
}

.section-action {
    display: flex;
}

.node-grid {
    display: grid;
    border-top: 1px solid var(--color-line);
    border-left: 1px solid var(--color-line);
    grid-template-columns: minmax(0, 1fr);
}

.node-card {
    position: relative;
    min-height: 14rem;
    padding: 1.35rem;
    border-right: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    background: rgb(255 255 255 / .36);
    min-width: 0;
}

.node-card::before {
    position: absolute;
    top: 2rem;
    right: 0;
    width: 1rem;
    height: 1px;
    background: var(--color-line);
    content: "";
}

.node-card h3 {
    max-width: 21ch;
    margin-block-start: 2.3rem;
    overflow-wrap: anywhere;
}

.node-card p {
    color: #536267;
    font-size: .93rem;
}

.node-status {
    position: absolute;
    top: 1.15rem;
    left: 1.35rem;
    display: flex;
    align-items: center;
    gap: .55rem;
}

.node-status span {
    width: .62rem;
    height: .62rem;
    border: 2px solid var(--color-accent-dark);
}

.node-status code {
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: .68rem;
}

.section--dark .node-grid,
.section--dark .node-card {
    border-color: var(--color-dark-line);
}

.section--dark .node-card {
    background: transparent;
}

.section--dark .node-status span {
    border-color: #82c0c9;
}

.section--dark .node-status code {
    color: #9eadaf;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    color: var(--color-accent-dark);
    font-size: .85rem;
    font-weight: 780;
    text-decoration: none;
}

.section--dark .text-link {
    color: #99d2da;
}

.text-link span {
    transition: translate .16s ease;
}

.text-link:hover span {
    translate: .25rem 0;
}

.pipeline {
    position: relative;
    display: grid;
    margin: 0;
    padding: 0;
    list-style: none;
}

.pipeline::before {
    position: absolute;
    top: 1rem;
    bottom: 1rem;
    left: .78rem;
    width: 1px;
    background: var(--color-line);
    content: "";
}

.pipeline li {
    position: relative;
    display: grid;
    padding-block-end: 2.7rem;
    grid-template-columns: 2.4rem minmax(0, 1fr);
    gap: 1rem;
}

.pipeline li:last-child {
    padding-bottom: 0;
}

.pipeline-marker {
    position: relative;
    z-index: 1;
    display: grid;
    width: 1.65rem;
    height: 1.65rem;
    place-items: center;
    border: 1px solid var(--color-accent-dark);
    background: var(--color-paper);
}

.pipeline-marker span {
    color: var(--color-accent-dark);
    font-family: var(--font-mono);
    font-size: .62rem;
    font-weight: 800;
}

.pipeline h3 {
    overflow-wrap: anywhere;
    font-size: 1.35rem;
}

.pipeline p {
    color: #526267;
}

.section--light .pipeline-marker {
    background: var(--color-surface);
}

.section--dark .pipeline::before {
    background: var(--color-dark-line);
}

.section--dark .pipeline-marker {
    border-color: #82c0c9;
    background: var(--color-surface-dark);
}

.section--dark .pipeline-marker span {
    color: #82c0c9;
}

.signal-flow {
    display: grid;
    margin: 0;
    padding: 0;
    border: 1px solid var(--color-ink);
    list-style: none;
}

.signal-flow li {
    position: relative;
    min-height: 12rem;
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-line);
    background: var(--color-surface);
}

.signal-flow li:last-child {
    border-bottom: 0;
}

.signal-flow li::after {
    position: absolute;
    bottom: -1rem;
    left: calc(50% - 1rem);
    z-index: 2;
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border: 1px solid var(--color-ink);
    background: var(--color-paper);
    color: var(--color-accent-dark);
    content: "↓";
    font-weight: 800;
}

.signal-flow li:last-child::after {
    display: none;
}

.signal-head {
    display: flex;
    margin-block-end: 1.8rem;
    align-items: center;
    justify-content: space-between;
}

.signal-head span {
    width: .7rem;
    height: .7rem;
    border: 2px solid var(--color-accent-dark);
}

.signal-flow li:nth-child(3) .signal-head span {
    border-color: var(--color-secondary-dark);
    background: var(--color-secondary);
}

.signal-flow li:last-child .signal-head span {
    border-color: var(--color-success);
    background: var(--color-success);
}

.signal-head code {
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: .7rem;
}

.signal-flow h3 {
    font-size: 1.35rem;
}

.signal-flow p {
    margin-block-start: .7rem;
    color: #536267;
    font-size: .9rem;
}

.checklist {
    display: grid;
    margin: 0;
    border-top: 1px solid var(--color-line);
}

.checklist li {
    display: grid;
    min-height: 3.45rem;
    padding: .75rem .2rem;
    align-items: center;
    border-bottom: 1px solid var(--color-line);
    grid-template-columns: 1.7rem minmax(0, 1fr);
    gap: .55rem;
}

.checklist li > span {
    width: .55rem;
    height: .55rem;
    margin-left: .2rem;
    border: 2px solid var(--color-success);
    background: var(--color-success);
}

.section--dark .checklist,
.section--dark .checklist li {
    border-color: var(--color-dark-line);
}

.section--dark .checklist li > span {
    border-color: #73b49e;
    background: #73b49e;
}

.system-map {
    position: relative;
    display: grid;
    padding: 1rem;
    border: 1px solid var(--color-dark-line);
    background: #1c3035;
    gap: 1rem;
}

.system-core {
    display: grid;
    min-height: 5.5rem;
    place-items: center;
    border: 1px solid #77b5be;
    background: var(--color-accent-dark);
    color: #fff;
    font-family: var(--font-mono);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.system-core span {
    width: .8rem;
    height: .8rem;
    border: 2px solid #fff;
    background: #fff;
}

.system-map ul {
    display: grid;
    border-top: 1px solid var(--color-dark-line);
    border-left: 1px solid var(--color-dark-line);
}

.system-map li {
    display: grid;
    min-height: 3.6rem;
    padding: .65rem;
    align-items: center;
    border-right: 1px solid var(--color-dark-line);
    border-bottom: 1px solid var(--color-dark-line);
    grid-template-columns: 1.8rem minmax(0, 1fr);
    color: #dbe2e3;
    font-size: .82rem;
}

.system-map li span {
    color: #8c9b9e;
    font-family: var(--font-mono);
    font-size: .6rem;
}

.comparison {
    display: grid;
    border: 1px solid var(--color-ink);
    background: var(--color-surface);
}

.comparison > section {
    padding: clamp(1.35rem, 3vw, 2.2rem);
}

.comparison > section:last-child {
    background: var(--color-secondary-soft);
}

.comparison h3 {
    margin-block: .6rem 1.5rem;
}

.comparison-switch {
    position: relative;
    display: grid;
    min-height: 3.2rem;
    place-items: center;
    background: var(--color-ink);
    color: #fff;
}

.comparison-switch span {
    font-family: var(--font-mono);
    font-size: .65rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.comparison > section:last-child .comparison-label {
    color: var(--color-secondary-dark);
}

.comparison > section:last-child .checklist,
.comparison > section:last-child .checklist li {
    border-color: #bec3e0;
}

.developer-profile {
    display: grid;
    border: 1px solid var(--color-ink);
    grid-template-columns: minmax(0, 1fr);
}

.developer-profile > * {
    min-width: 0;
}

.profile-copy,
.profile-terminal {
    padding: clamp(1.5rem, 4vw, 3rem);
}

.profile-copy {
    background: var(--color-surface);
}

.profile-copy h3 {
    max-width: 22ch;
    overflow-wrap: anywhere;
    font-size: clamp(1.75rem, 3.8vw, 3.2rem);
}

.profile-terminal {
    border-top: 2.5rem solid var(--color-secondary-dark);
    background: var(--color-surface-dark);
    color: #fff;
}

.profile-terminal > p {
    margin-block-end: 1rem;
    color: #9fb0b3;
    font-family: var(--font-mono);
    font-size: .67rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.profile-terminal .checklist,
.profile-terminal .checklist li {
    border-color: var(--color-dark-line);
}

.profile-terminal .checklist li > span {
    border-color: #73b49e;
    background: #73b49e;
}

.faq-list {
    border-top: 1px solid #738489;
}

.faq-item {
    border-bottom: 1px solid var(--color-dark-line);
}

.faq-item summary {
    position: relative;
    display: grid;
    min-height: 4.6rem;
    padding: 1.15rem 3rem 1.15rem 0;
    align-items: center;
    cursor: pointer;
    grid-template-columns: 2.3rem minmax(0, 1fr);
    color: #f5f9f8;
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 720;
    line-height: 1.3;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    position: absolute;
    right: .3rem;
    color: #82c0c9;
    content: "+";
    font-family: var(--font-mono);
    font-size: 1.5rem;
}

.faq-item[open] summary::after {
    content: "−";
}

.faq-item summary code {
    color: #9eadaf;
    font-family: var(--font-mono);
    font-size: .66rem;
}

.faq-answer {
    padding: 0 2rem 1.6rem 2.3rem;
    color: #c4d0d2;
}

.cta-section {
    position: relative;
    overflow: hidden;
    padding-block: clamp(4rem, 9vw, 7rem);
    background: var(--color-accent-dark);
    color: #fff;
}

.cta-route {
    position: absolute;
    top: 0;
    right: 4%;
    width: 25%;
    height: 100%;
    border-inline: 1px solid rgb(255 255 255 / .25);
    background: rgb(20 33 38 / .18);
}

.cta-route::before {
    position: absolute;
    top: 50%;
    right: 0;
    left: 0;
    height: 1px;
    background: rgb(255 255 255 / .45);
    content: "";
}

.cta-route span,
.cta-route i,
.cta-route b {
    position: absolute;
    top: calc(50% - .5rem);
    width: 1rem;
    height: 1rem;
    border: 2px solid #fff;
    background: var(--color-accent-dark);
}

.cta-route span { left: 15%; }
.cta-route i { left: calc(50% - .5rem); background: #fff; }
.cta-route b { right: 15%; }

.cta-grid {
    position: relative;
    z-index: 1;
    display: grid;
    gap: var(--space-5);
}

.cta-label {
    color: #d3eef1;
}

.cta-section h2 {
    max-width: 18ch;
}

.cta-section .flow p {
    max-width: 56ch;
    color: #e0f0f2;
}

.cta-section .button {
    border-color: #fff;
    background: #fff;
    color: var(--color-accent-dark);
}

.cta-section .button:hover {
    background: var(--color-ink);
    color: #fff;
}

.cta-section .button--secondary {
    background: transparent;
    color: #fff;
}

.form-section {
    background: var(--color-surface);
}

.config-notice {
    display: grid;
    margin-block-end: 2rem;
    padding: 1.1rem 1.2rem;
    border: 1px solid var(--color-warning);
    background: #f2e8da;
    grid-template-columns: 1rem minmax(0, 1fr);
    gap: .8rem;
}

.config-notice > span {
    width: .75rem;
    height: .75rem;
    margin-block-start: .35rem;
    border: 2px solid var(--color-warning);
}

.config-notice strong {
    display: block;
    font-size: 1.05rem;
}

.config-notice p {
    margin-block-start: .3rem;
    font-size: .9rem;
}

.config-notice--legal {
    max-width: 54rem;
}

.required-note {
    margin-block: 0 1rem;
    color: var(--color-muted);
    font-size: .82rem;
}

.form-grid {
    display: grid;
    gap: 1.25rem;
}

.form-field {
    display: grid;
    align-content: start;
    gap: .42rem;
}

.form-field label {
    font-family: var(--font-mono);
    font-size: .78rem;
    font-weight: 760;
}

.form-field label span {
    color: var(--color-muted);
    font-size: .7rem;
    font-weight: 500;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    min-height: 3.2rem;
    padding: .75rem .8rem;
    border: 1px solid #77878a;
    border-radius: 0;
    background: #fff;
    color: var(--color-ink);
}

.form-field textarea {
    min-height: 8rem;
    resize: vertical;
}

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
    border-color: #125dff;
    outline-offset: 1px;
}

.form-field input:disabled,
.form-field select:disabled,
.form-field textarea:disabled {
    border-color: #c7cfce;
    background: #edf0ef;
    color: #657277;
    cursor: not-allowed;
    opacity: 1;
}

.privacy-note {
    padding: .9rem 1rem;
    border-left: 3px solid var(--color-accent-dark);
    background: var(--color-accent-soft);
    color: #3c4e53;
    font-size: .86rem;
}

.form-submit:disabled {
    border-color: #7e8a89;
    background: #7e8a89;
    cursor: not-allowed;
    translate: none;
}

.legal-layout {
    display: grid;
    gap: var(--space-6);
}

.prose {
    max-width: 50rem;
}

.prose section + section {
    margin-block-start: 3rem;
    padding-block-start: 2rem;
    border-top: 1px solid var(--color-line);
}

.section--dark .prose section + section {
    border-color: var(--color-dark-line);
}

.prose h2 {
    font-size: clamp(1.6rem, 3vw, 2.35rem);
}

.prose h3 {
    margin-block-start: 2rem;
}

.site-footer {
    padding-block: clamp(4rem, 8vw, 6.5rem) 1.5rem;
    background: var(--color-ink);
    color: #f5f9f8;
}

.footer-grid {
    display: grid;
    gap: 3rem 2rem;
}

.footer-brand p {
    max-width: 37ch;
    color: #bcc8ca;
    font-size: .9rem;
}

.footer-brand .wordmark {
    color: #fff;
}

.brand-links {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem 1.2rem;
}

.brand-links a {
    color: #9dd0d7;
    font-size: .82rem;
    font-weight: 740;
}

.footer-group h2 {
    margin-block-end: 1rem;
    color: #829195;
    font-family: var(--font-mono);
    font-size: .67rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.footer-links {
    display: grid;
    gap: .62rem;
}

.footer-links a {
    color: #d2dadb;
    font-size: .84rem;
    text-decoration: none;
}

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

.footer-bottom {
    display: flex;
    margin-block-start: 4rem;
    padding-block-start: 1.2rem;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    border-top: 1px solid var(--color-dark-line);
    color: #94a2a5;
    font-family: var(--font-mono);
    font-size: .68rem;
}

.footer-bottom nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.error-page {
    min-height: 100vh;
}

.error-main {
    display: grid;
    min-height: calc(100vh - 4.8rem);
    padding-block: 4rem;
    align-items: center;
    background: linear-gradient(90deg, var(--color-paper) 0 68%, var(--color-accent-soft) 68%);
}

.error-grid {
    display: grid;
    gap: 3rem;
}

.error-route {
    display: grid;
    align-items: center;
    grid-template-columns: auto 1fr auto 1fr auto;
    gap: .7rem;
    font-family: var(--font-mono);
}

.error-route span {
    color: var(--color-muted);
    font-size: .65rem;
    text-transform: uppercase;
}

.error-route i {
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--color-warning) 0 5px, transparent 5px 9px);
}

.error-route strong {
    display: grid;
    width: 5rem;
    height: 5rem;
    place-items: center;
    border: 2px solid var(--color-warning);
    color: var(--color-warning);
    font-size: 1.35rem;
}

.error-grid .button {
    margin-block-start: 1.5rem;
}

@media (min-width: 40rem) {
    .container {
        width: min(calc(100% - 3rem), var(--container));
    }

    .trust-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .trust-list li:nth-child(odd) {
        border-right: 1px solid var(--color-line);
    }

    .console-grid {
        grid-template-columns: 1fr 2.5rem 1fr 2.5rem 1fr;
        align-items: stretch;
    }

    .console-route {
        min-height: auto;
        align-content: center;
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .console-route i {
        width: 1px;
        height: 100%;
        min-height: 2rem;
        background: repeating-linear-gradient(0deg, #718287 0 5px, transparent 5px 9px);
    }

    .node-grid--2,
    .node-grid--3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .signal-flow {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .signal-flow li {
        border-right: 1px solid var(--color-line);
    }

    .signal-flow li::after {
        top: calc(50% - 1rem);
        right: -1rem;
        bottom: auto;
        left: auto;
        content: "→";
    }

    .signal-flow li:nth-child(even) {
        border-right: 0;
    }

    .signal-flow li:nth-child(even)::after {
        top: auto;
        right: calc(50% - 1rem);
        bottom: -1rem;
        content: "↓";
    }

    .signal-flow li:last-child::after {
        display: none;
    }

    .system-map ul {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .comparison,
    .developer-profile {
        grid-template-columns: minmax(0, 1fr) 3.2rem minmax(0, 1fr);
    }

    .comparison-switch {
        min-height: auto;
        writing-mode: vertical-rl;
    }

    .developer-profile {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .profile-terminal {
        border-top: 0;
        border-left: 2.5rem solid var(--color-secondary-dark);
    }

    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-field--full {
        grid-column: 1 / -1;
    }

    .footer-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .error-grid {
        grid-template-columns: .8fr 1.2fr;
        align-items: center;
    }
}

@media (min-width: 58rem) {
    .home-hero-grid {
        grid-template-columns: minmax(0, 1.05fr) minmax(24rem, .95fr);
        align-items: center;
        gap: clamp(3rem, 6vw, 6rem);
    }
}

@media (min-width: 64rem) {
    .site-header {
        position: sticky;
        top: 0;
        backdrop-filter: blur(10px);
    }

    .page-hero-grid {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: end;
    }

    .section-layout {
        grid-template-columns: minmax(15rem, .72fr) minmax(0, 1.5fr);
        gap: clamp(4rem, 8vw, 8rem);
    }

    .section-header {
        position: sticky;
        top: 7rem;
        align-self: start;
    }

    .node-grid--3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .node-card {
        padding: 1.55rem;
    }

    .node-status {
        left: 1.55rem;
    }

    .signal-flow {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .signal-flow li,
    .signal-flow li:nth-child(even) {
        border-right: 1px solid var(--color-line);
        border-bottom: 0;
    }

    .signal-flow li:last-child {
        border-right: 0;
    }

    .signal-flow li::after,
    .signal-flow li:nth-child(even)::after {
        top: calc(50% - 1rem);
        right: -1rem;
        bottom: auto;
        left: auto;
        content: "→";
    }

    .signal-flow li:last-child::after {
        display: none;
    }

    .system-map {
        grid-template-columns: .38fr 1fr;
        align-items: stretch;
    }

    .system-map ul {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .cta-grid {
        grid-template-columns: .35fr 1fr auto;
        align-items: end;
        gap: 3rem;
    }

    .cta-section .button-row {
        max-width: 18rem;
    }

    .footer-grid {
        grid-template-columns: 1.35fr repeat(3, 1fr);
    }

    .footer-brand {
        grid-column: auto;
    }

    .legal-layout {
        grid-template-columns: minmax(16rem, .68fr) minmax(0, 1.32fr);
    }
}

@media (min-width: 76rem) {
    .desktop-nav {
        display: block;
    }

    .desktop-nav ul {
        display: flex;
        margin: 0;
        align-items: center;
        gap: clamp(.7rem, 1.3vw, 1.3rem);
    }

    .desktop-nav a:not(.button) {
        position: relative;
        display: block;
        padding-block: 1.65rem;
        font-size: .72rem;
        font-weight: 740;
        text-decoration: none;
    }

    .desktop-nav a:not(.button)::before {
        position: absolute;
        bottom: 1rem;
        left: 50%;
        width: .5rem;
        height: .5rem;
        border: 1px solid var(--color-accent-dark);
        background: var(--color-paper);
        content: "";
        opacity: 0;
        translate: -50% 0;
    }

    .desktop-nav a:not(.button):hover::before,
    .desktop-nav a:not(.button)[aria-current="page"]::before {
        opacity: 1;
    }

    .desktop-nav .button {
        min-height: 2.7rem;
        padding-block: .55rem;
    }

    .mobile-nav {
        display: none;
    }
}

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

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}

@media print {
    .site-header,
    .site-footer,
    .cta-section,
    .button-row,
    .section-action {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
    }

    .section {
        padding-block: 2rem;
        break-inside: avoid;
    }
}