@font-face {
  font-family: Anton;
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('./assets/fonts/anton-latin-400-normal.woff2') format('woff2');
}

:root {
  color-scheme: dark;
  --bg: #0b100d;
  --surface: #101b14;
  --surface-deep: #0c150f;
  --text: #e5eee6;
  --muted: #a2b2a5;
  --line: #304435;
  --accent: #a4f06d;
  --header-height: 78px;
  --gutter: clamp(24px, 3.6vw, 58px);
  --body-font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', Arial, sans-serif;
  --mono-font: ui-monospace, 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 24px); }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--body-font); -webkit-font-smoothing: antialiased; }
::selection { background: var(--accent); color: var(--bg); }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
svg { display: block; }
h1, h2, h3, p { margin: 0; }
h1, h2 { text-wrap: balance; }
h2 { font-size: clamp(36px, 3.6vw, 54px); font-weight: 700; line-height: 1.32; letter-spacing: -.015em; }
h3 { font-size: 23px; font-weight: 600; line-height: 1.5; text-wrap: pretty; }
p { font-size: 17px; line-height: 1.85; text-wrap: pretty; }
a:focus-visible, button:focus-visible, summary:focus-visible, [role='tabpanel']:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
.button-primary:focus-visible { outline-color: var(--text); }
main:focus, section[tabindex='-1']:focus { outline: none; }
.wrap { width: 100%; max-width: 1440px; margin-inline: auto; padding-inline: var(--gutter); }
.mono { font-family: var(--mono-font); font-size: 12px; font-weight: 400; line-height: 1.7; letter-spacing: .065em; }
.actions { display: flex; align-items: center; gap: 27px; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 17px; padding: 12px 24px; border: 1px solid transparent; font-size: 15px; font-weight: 600; line-height: 1.6; transition: transform 180ms cubic-bezier(.2,.8,.2,1), background-color 180ms, border-color 180ms; }
.button-primary { background: var(--accent); color: var(--bg); }
.button-primary:hover { background: #b5fa83; transform: translateY(-2px); }
.button-outline { border-color: #617461; background: transparent; }
.button-outline:hover { border-color: var(--text); transform: translateY(-2px); }
.button:active { transform: translateY(1px) scale(.985); transition-duration: 80ms; }
.text-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 15px; min-height: 44px; padding-block: 10px; border-bottom: 1px solid #566952; font-size: 15px; font-weight: 500; line-height: 1.5; transition: color 160ms, border-color 160ms; }
.text-link:hover { color: var(--accent); border-color: var(--accent); }
.text-link span { transition: transform 180ms; }
.text-link:hover span { transform: translateY(-2px); }
.skip-link { position: fixed; top: 12px; left: var(--gutter); z-index: 100; transform: translateY(-160%); padding: 14px 20px; background: var(--accent); color: var(--bg); font-weight: 600; }
.skip-link:focus { transform: none; }

.site-header { position: sticky; top: 0; z-index: 50; height: var(--header-height); background: var(--bg); }
.site-nav { display: flex; height: 100%; align-items: center; justify-content: space-between; gap: 30px; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; min-height: 44px; width: 155px; flex: 0 0 auto; }
.brand img, .footer-brand img { width: 100%; height: auto; }
.desktop-nav { display: flex; gap: 30px; margin-left: auto; font-size: 14px; }
.desktop-nav a { padding-block: 14px; }
.desktop-nav a:hover { color: var(--accent); }
.nav-actions { position: relative; display: flex; gap: 14px; align-items: center; }
.nav-release { display: inline-flex; align-items: center; gap: 14px; min-height: 44px; padding: 10px 18px; font-size: 14px; border: 1px solid #435742; transition: background-color 150ms, border-color 150ms; }
.nav-release:hover { background: var(--surface); border-color: var(--accent); }
.mobile-menu { display: none; }
.language-switch { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; color: var(--muted); font-size: 13px; border-bottom: 1px solid var(--line); }
.language-switch:hover { color: var(--accent); border-color: var(--accent); }
html[lang='en'] { --body-font: Arial, Helvetica, sans-serif; }
html[lang='en'] h2 { line-height: 1.2; letter-spacing: -.035em; }
html[lang='en'] .hero-value { max-width: 700px; }
html[lang='en'] .hero-value h1 { line-height: 1.15; letter-spacing: -.035em; }
html[lang='en'] .hero-start > p { max-width: 43%; }
html[lang='en'] .hero-figure-note { font-size: 10px; }
html[lang='en'] .closing-section h2 { font-size: clamp(36px, 4.2vw, 62px); }

.hero-track { position: relative; }
.hero-stage { --hero-type-size: clamp(90px, min(15.8vw, calc((max(735px, 100svh - var(--header-height)) - 224px) / 2.64)), 231px); position: relative; height: calc(100svh - var(--header-height)); min-height: 735px; overflow: clip; background: var(--bg); isolation: isolate; }
.hero-inner { position: relative; height: 100%; }
.hero-topline { display: flex; justify-content: space-between; padding-top: 24px; color: var(--accent); }
.hero-brand-depth { margin-top: 20px; transform-origin: 50% 36%; }
.brand-reveal { overflow: hidden; }
.hero-display { white-space: nowrap; text-align: center; color: var(--accent); font-family: Anton, Impact, 'Arial Narrow', sans-serif; font-size: var(--hero-type-size); line-height: 1.14; font-weight: 400; letter-spacing: -.025em; }
.display-o { display: inline-block; width: .73em; height: .73em; margin-inline: .015em; vertical-align: -.005em; background: url('./assets/dawn-o.svg') center / contain no-repeat; }
/* Share the wordmark's size/flow anchor: browser zoom must not stretch the hands independently. */
.hero-media { position: relative; width: 74%; height: clamp(240px, calc(var(--hero-type-size) * 1.5), 350px); margin: 32px auto 0; transform-origin: 52% 47%; pointer-events: none; }
.hero-media-art { width: 100%; height: 100%; }
.hero-media-art > img { width: 100%; height: 100%; object-fit: contain; filter: contrast(1.02); mask-image: linear-gradient(90deg, transparent 8%, #000 21%, #000 72%, transparent 90%); -webkit-mask-image: linear-gradient(90deg, transparent 8%, #000 21%, #000 72%, transparent 90%); }
.hero-geometry { position: absolute; left: 50.5%; top: 47%; transform: translate(-50%, -50%); width: 274px; height: 274px; border: 1px solid #4c6449; border-radius: 50%; z-index: -1; }
.hero-geometry i { position: absolute; inset: 20px; border: 1px solid #304b35; border-radius: 50%; }
.hero-geometry b { position: absolute; inset: 60px; border: 1px solid #304b35; transform: rotate(45deg); }
.hero-geometry span { position: absolute; top: -13px; left: calc(50% - .5px); height: 25px; width: 1px; background: #5a7754; }
.hero-figure-note { position: absolute; top: 42%; left: 14px; writing-mode: vertical-rl; color: var(--muted); }
.hero-copy { position: absolute; bottom: 130px; left: var(--gutter); right: var(--gutter); display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.hero-value h1 { font-size: 45px; font-weight: 700; line-height: 1.33; letter-spacing: -.02em; }
.hero-value > p { margin-top: 18px; color: var(--muted); font-size: 16px; line-height: 1.8; }
.hero-principle { max-width: 224px; padding-bottom: 2px; }
.hero-principle .mono { color: var(--accent); font-size: 14px; line-height: 1.65; }
.hero-principle > p + p { margin-top: 15px; font-size: 15px; color: var(--muted); line-height: 1.8; }
.hero-start { position: absolute; bottom: 0; left: var(--gutter); right: var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 23px 27px; border-top: 1px solid var(--line); }
.hero-start > p { color: var(--muted); font-size: 12px; }
.runtime-names { overflow-wrap: anywhere; }
.hero-handoff { position: absolute; right: var(--gutter); left: 42%; top: 58%; visibility: hidden; opacity: 0; border-top: 1px solid var(--line); padding-top: 18px; }
.hero-handoff > span { color: var(--accent); }
.hero-handoff > div { display: flex; gap: 23px; margin-top: 10px; font-size: 15px; color: var(--muted); }
.media-fallback { height: 100%; display: flex; align-items: center; justify-content: center; gap: 28px; font-size: 25px; color: var(--text); }
.media-fallback b { color: var(--accent); font-weight: 400; }
/* Prepare the first paint, but keep the message and primary action readable. */
html[data-entry-pending] .hero-display, html[data-entry-pending] .hero-media-art { opacity: 0; }
html[data-entry-pending] .hero-value, html[data-entry-pending] .hero-principle { opacity: .8; transform: translateY(10px); }
html[data-entry-pending] .hero-start { transform: translateY(8px); }

.section { padding-block: 83px; scroll-margin-top: 18px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; margin-bottom: 43px; }
.section-kicker { color: var(--accent); margin-bottom: 24px; }
.section-intro { max-width: 353px; color: var(--muted); font-size: 16px; line-height: 1.85; }
.line-reveal { display: block; overflow: hidden; }
.line-reveal > span { display: inline-block; }
.capabilities { background: var(--surface); border-top: 1px solid var(--line); }
.capability-grid { display: grid; grid-template-columns: 1fr 1fr; border-block: 1px solid var(--line); }
.capability { display: grid; grid-template-columns: 60px minmax(0, 1fr); gap: 24px; padding: 33px 34px 36px 0; }
.capability:nth-child(even) { border-left: 1px solid var(--line); padding-left: 36px; padding-right: 0; }
.capability:nth-child(n+3) { border-top: 1px solid var(--line); }
.capability-icon { width: 58px; height: 58px; fill: none; stroke: var(--accent); stroke-width: 1.25; stroke-linecap: square; }
.capability .mono { color: var(--accent); margin-bottom: 10px; }
.capability h3 { font-size: 23px; }
.capability-text > p:last-child { color: var(--muted); margin-top: 13px; font-size: 16px; }

.work-section { background: var(--bg); }
.workspace-reveal { transform-origin: 50% 50%; }
.workspace-window { border: 1px solid #586d53; background: var(--surface-deep); box-shadow: 0 28px 60px #00000029; }
.workspace-titlebar { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 13px 21px; border-bottom: 1px solid var(--line); font-family: var(--mono-font); font-size: 12px; line-height: 1.5; color: var(--muted); }
.window-points { display: flex; gap: 6px; }
.window-points i { width: 5px; height: 5px; border-radius: 50%; background: #667865; }
.window-points i:last-child { background: #98b480; }
.workspace-body { display: grid; grid-template-columns: 234px minmax(0,1fr); min-height: 440px; }
.workspace-sidebar { padding: 27px 21px; border-right: 1px solid var(--line); }
.workspace-project { display: flex; gap: 12px; align-items: center; padding-bottom: 27px; }
.workspace-project svg { width: 28px; height: 28px; stroke: var(--accent); stroke-width: 1.3; fill: none; flex: 0 0 auto; }
.workspace-project strong { display: block; font-weight: 500; font-size: 15px; line-height: 1.7; }
.workspace-project span { display: block; margin-top: 5px; font-size: 12px; line-height: 1.6; color: var(--muted); }
.sidebar-heading { color: #91a189; font-size: 11px; }
.sidebar-current { margin-top: 12px; display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; color: var(--accent); background: #21301c; font-size: 14px; }
.sidebar-row { padding: 10px 12px; font-size: 14px; color: var(--muted); }
.sidebar-agents { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); }
.sidebar-agents > span { display: inline-block; margin: 10px 10px 0 0; font-size: 13px; color: var(--muted); }
.sidebar-agents .remote-agent { display: block; }
.workspace-content { min-width: 0; }
.work-tabs { position: relative; display: flex; border-bottom: 1px solid var(--line); padding-inline: 29px; }
.work-tabs button { flex: 1; border: 0; background: transparent; color: var(--muted); min-height: 58px; padding: 14px 20px; font-size: 15px; line-height: 1.5; cursor: pointer; }
.work-tabs button:hover { color: var(--text); background: #ffffff03; }
.work-tabs button[aria-selected='true'] { color: var(--accent); font-weight: 600; }
.work-tabs button:focus-visible { outline-offset: -7px; }
.tab-indicator { position: absolute; bottom: -1px; left: 0; width: 0; height: 2px; background: var(--accent); pointer-events: none; }
.work-panel { padding: 28px 37px 31px; min-height: 348px; }
.work-panel + .work-panel:not([hidden]) { border-top: 1px solid var(--line); }
.panel-stage { min-height: 273px; }
.panel-label { color: #9fb291; font-size: 11px; margin-bottom: 20px; }
.request-block { margin-bottom: 26px; }
.request-label { display: inline-block; font-size: 13px; color: var(--muted); margin-bottom: 9px; }
.request-block > p { font-size: 25px; line-height: 1.55; color: var(--text); font-weight: 500; }
.response-block { display: flex; align-items: flex-start; gap: 17px; max-width: 670px; }
.response-block > img { margin-top: 3px; flex: 0 0 auto; }
.response-block h3 { font-size: 18px; font-weight: 500; }
.response-block p { margin-top: 9px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.context-line { display: flex; flex-wrap: wrap; gap: 12px 23px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line); color: #b6c4ac; font-size: 12px; }
.panel-title { font-size: 20px; font-weight: 500; }
.process-list { list-style: none; margin: 16px 0 0; padding: 0; }
.process-list li { display: flex; align-items: flex-start; gap: 19px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.process-list li:last-child { border-bottom: 0; }
.process-list .mono { color: var(--accent); font-size: 12px; padding-top: 2px; }
.process-list strong { font-size: 15px; font-weight: 500; }
.process-list p { color: var(--muted); font-size: 14px; margin-top: 4px; line-height: 1.7; }
.artifact-view { display: grid; grid-template-columns: 198px minmax(0,1fr); gap: 30px; align-items: center; }
.document-cover { min-height: 243px; padding: 24px 24px 20px; border: 1px solid #73876a; background: #dbe6d0; color: #21341c; }
.document-cover svg { width: 33px; height: 41px; fill: none; stroke: #36512a; stroke-width: 1.3; margin-bottom: 18px; }
.document-cover .mono { display: block; font-size: 10px; color: #4d6341; }
.document-cover h3 { margin-top: 8px; font-size: 23px; font-weight: 500; }
.document-lines { margin-top: 20px; }
.document-lines i { display: block; width: 100%; height: 1px; background: #91a184; margin-top: 10px; }
.document-lines i:last-child { width: 63%; }
.file-name { font: 13px var(--mono-font); color: var(--accent); display: block; margin-bottom: 13px; overflow-wrap: anywhere; }
.artifact-description h3 { font-size: 21px; font-weight: 500; }
.artifact-description p { font-size: 14px; color: var(--muted); margin-top: 12px; }
.artifact-description ul { padding-left: 18px; margin: 15px 0 0; font-size: 13px; line-height: 1.9; color: var(--muted); }
.workspace-bottom { border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 14px 22px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.workspace-bottom .mono { color: #b7d99e; }
.workspace-caption { display: flex; gap: 20px; align-items: center; justify-content: space-between; margin-top: 22px; font-size: 14px; color: var(--muted); }

.connections { background: var(--surface); border-block: 1px solid var(--line); }
.connection-map { display: grid; grid-template-columns: minmax(0,1fr) 140px minmax(0,1fr); gap: 30px; align-items: center; padding: 35px 0 30px; border-block: 1px solid var(--line); }
.connection-route > .mono { color: var(--accent); margin-bottom: 15px; }
.connection-route h3 { font-weight: 500; font-size: 26px; }
.connection-route > p:last-child { font-size: 16px; color: var(--muted); margin-top: 20px; }
.runtime-list { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 18px; margin: 24px 0 0; padding: 0; font-size: 15px; font-weight: 500; }
.runtime-list li { display: flex; align-items: center; gap: 10px; min-height: 70px; border-bottom: 1px solid var(--line); }
.runtime-list li > span { min-width: 0; line-height: 1.5; }
.agent-logo { flex: 0 0 32px; width: 32px; height: 32px; object-fit: contain; }
.logo-pi { flex-basis: 46px; width: 46px; height: 46px; margin-inline: -7px; }
/* Neutralize the official icon's black backing without editing/recoloring its white mark. */
.logo-codex { mix-blend-mode: screen; }
.connection-bridge { display: flex; align-items: center; gap: 13px; }
.connection-bridge > span { height: 1px; flex: 1; background: #6e8e5a; transform-origin: 0 50%; }
.connection-bridge > span:last-child { transform-origin: 100% 50%; }
.connection-bridge img { flex: 0 0 auto; }
.gateway-model { margin-top: 24px; padding: 18px 16px 14px; border: 1px solid #49623e; background: var(--surface-deep); }
.gateway-path { display: grid; grid-template-columns: minmax(0,1fr) 20px minmax(0,1.5fr) 20px minmax(0,1fr); align-items: center; gap: 6px; }
.gateway-endpoint, .gateway-core { display: flex; flex-direction: column; align-items: center; gap: 9px; text-align: center; }
.gateway-endpoint { font-size: 12px; color: var(--muted); line-height: 1.5; }
.gateway-model svg { fill: none; stroke: #9eaf92; stroke-width: 1.2; width: 32px; height: 32px; flex-shrink: 0; }
.gateway-core svg { width: 36px; height: 36px; stroke: var(--accent); }
.gateway-core strong { font: 16px/1.6 var(--mono-font); color: var(--accent); white-space: nowrap; }
.gateway-wire { display: block; height: 1px; background: #657e52; transform-origin: 0 50%; }
.gateway-boundaries { list-style: none; display: flex; justify-content: center; gap: 8px 18px; flex-wrap: wrap; margin: 16px 0 0; padding: 13px 0 0; border-top: 1px solid var(--line); color: #bed0b0; font-size: 12px; line-height: 1.6; }
.connection-conclusion { text-align: center; margin-top: 29px; font-size: 17px; color: var(--muted); }
.brand-notice { text-align: center; font-size: 12px; color: var(--muted); margin-top: 17px; }
.brand-notice a { display: inline-block; margin-left: 6px; padding-block: 5px; text-decoration: underline; text-underline-offset: 4px; }
.brand-notice a:focus-visible { outline-offset: 3px; }

.trust-section { background: var(--bg); }
.trust-layout { display: grid; grid-template-columns: minmax(0,.44fr) minmax(0,.56fr); gap: 80px; }
.trust-statement h2 { font-size: clamp(40px,4.2vw,62px); }
.trust-statement > p:not(.section-kicker) { margin-top: 27px; color: var(--muted); font-size: 18px; }
.trust-signature { color: #bed4ad; margin-top: 31px; }
.trust-principles { border-top: 1px solid var(--line); }
.trust-principles article { display: grid; grid-template-columns: 25px minmax(0,1fr); gap: 24px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.trust-principles article > .mono { color: var(--accent); margin-top: 5px; }
.trust-principles h3 { font-size: 21px; font-weight: 500; }
.trust-principles p { margin-top: 13px; font-size: 16px; color: var(--muted); }

.start-section { border-top: 1px solid var(--line); background: var(--surface-deep); }
.start-steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--line); }
.start-steps li { padding: 29px 35px 3px 0; display: flex; align-items: flex-start; gap: 18px; }
.start-steps li + li { padding-left: 30px; border-left: 1px solid var(--line); }
.start-steps li:last-child { padding-right: 0; }
.step-number { font: 32px/1.25 Anton, sans-serif; color: var(--accent); margin-top: 3px; }
.start-steps h3 { font-size: 22px; font-weight: 500; }
.start-steps p { margin-top: 14px; color: var(--muted); font-size: 16px; }
.start-steps .text-link { margin-top: 20px; font-size: 14px; }

.faq-section { border-top: 1px solid var(--line); }
.faq-layout { display: grid; grid-template-columns: minmax(0,.36fr) minmax(0,.64fr); gap: 64px; }
.faq-layout h2 { font-size: 35px; }
.faq-intro { margin-top: 22px; color: var(--muted); font-size: 16px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 77px; padding: 22px 0; list-style: none; font-size: 17px; line-height: 1.65; cursor: pointer; }
.faq-list summary::-webkit-details-marker, .mobile-menu summary::-webkit-details-marker { display: none; }
.faq-list summary:hover { color: var(--accent); }
.faq-plus { color: var(--accent); font-size: 21px; flex: 0 0 auto; transition: transform 200ms; }
.faq-list details[open] .faq-plus { transform: rotate(45deg); }
.faq-answer { padding: 0 40px 25px 0; }
.faq-answer p { font-size: 16px; color: var(--muted); }
.faq-answer a { color: #c3e5ab; border-bottom: 1px solid #667e52; }

.closing-section { position: relative; text-align: center; padding-block: 76px 64px; background: #162211; border-block: 1px solid #405435; }
.closing-section h2 { font-size: clamp(43px,4.7vw,68px); line-height: 1.38; }
.closing-section h2 > span { color: var(--accent); }
.closing-section > .wrap > p:not(.section-kicker) { margin-top: 26px; font-size: 16px; color: #b5c1ac; }
.closing-section .actions { justify-content: center; margin-top: 31px; gap: 16px; }
.closing-status { margin-top: 32px; color: #b0c5a0; }
.site-footer { background: var(--bg); padding-block: 30px; }
.footer-content { display: flex; gap: 30px; align-items: center; justify-content: space-between; }
.footer-brand { display: flex; align-items: center; min-height: 44px; width: 148px; flex: 0 0 auto; }
.footer-content > p { color: var(--muted); font-size: 12px; line-height: 1.9; }
.footer-content > p > a:hover { color: var(--accent); }
.back-top { color: var(--muted); font-size: 13px; }

@media (min-width: 701px) and (max-height: 830px) {
  .hero-brand-depth { margin-top: 16px; }
  .hero-value h1 { font-size: 40px; }
  .hero-copy { bottom: 117px; }
  .hero-start { padding-block: 20px 22px; }
}
@media (max-width: 1100px) {
  .desktop-nav { gap: 22px; }
  .site-nav { gap: 22px; }
  .section-heading { gap: 30px; }
  .section-intro { max-width: 310px; }
  .hero-principle { max-width: 200px; }
  .hero-value h1 { font-size: 40px; }
  .hero-start .actions { gap: 22px; }
  .hero-start > p { max-width: 40%; }
  .hero-handoff { left: 45%; }
  .hero-handoff > div { flex-wrap: wrap; gap: 10px 23px; }
  .workspace-body { grid-template-columns: 202px minmax(0,1fr); }
  .workspace-sidebar { padding: 26px 18px; }
  .work-panel { padding: 25px 27px 29px; }
  .artifact-view { grid-template-columns: 171px minmax(0,1fr); gap: 23px; }
  .document-cover { padding: 22px; }
  .connection-map { grid-template-columns: minmax(0,1fr) 80px minmax(0,1fr); gap: 24px; }
  .connection-bridge { gap: 6px; }
  .runtime-list { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .trust-layout { gap: 45px; }
  .start-steps li { padding-right: 22px; gap: 13px; }
  .start-steps li + li { padding-left: 22px; }
  .faq-layout { gap: 35px; }
}
@media (max-width: 900px) {
  .desktop-nav a:nth-child(3) { display: none; }
  html[lang='en'] .hero-principle { display: none; }
  .hero-start > p { font-size: 11px; }
  .hero-start .button { padding-inline: 18px; }
  .hero-start .text-link { font-size: 14px; }
  .section { padding-block: 64px; }
  .section-heading { display: block; }
  .section-intro { max-width: none; margin-top: 22px; }
  .section-intro br { display: none; }
  .capability { gap: 18px; grid-template-columns: 45px minmax(0,1fr); padding-right: 25px; }
  .capability:nth-child(even) { padding-left: 25px; }
  .capability-icon { width: 43px; height: 43px; }
  .capability h3 { font-size: 21px; }
  .workspace-sidebar { display: none; }
  .workspace-body { display: block; min-height: 0; }
  .workspace-titlebar > .mono { display: none; }
  .trust-layout { grid-template-columns: 1fr 1.15fr; gap: 35px; }
  .trust-principles article { gap: 18px; }
  .start-steps { grid-template-columns: 1fr; }
  .start-steps li, .start-steps li + li { border-left: 0; padding: 25px 0; gap: 24px; }
  .start-steps li + li { border-top: 1px solid var(--line); }
  .start-steps p { margin-top: 10px; }
  .start-steps .text-link { margin-top: 13px; }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-intro { margin-top: 15px; }
}
@media (max-width: 700px) {
  :root { --gutter: 22px; --header-height: 70px; }
  h2 { font-size: 34px; line-height: 1.36; }
  h3 { font-size: 21px; }
  p { font-size: 16px; }
  .mono { font-size: 11px; }
  .site-nav { gap: 12px; }
  .brand { width: 130px; }
  .desktop-nav { display: none; }
  .nav-actions { gap: 10px; }
  .nav-release { min-width: 44px; min-height: 44px; padding: 8px; gap: 0; font-size: 0; }
  .nav-release > span { font-size: 17px; }
  .language-switch { font-size: 12px; }
  html[lang='en'] .hero-start > p { max-width: none; }
  html[lang='en'] .hero-start .actions { gap: 13px; }
  html[lang='en'] .hero-start .button { font-size: 14px; padding-inline: 16px; }
  html[lang='en'] .hero-start .text-link { font-size: 13px; }
  html[lang='en'] .hero-handoff > div { font-size: 12px; gap: 8px 15px; }
  html[lang='en'] .work-tabs button { font-size: 13px; }
  html[lang='en'] .artifact-view { grid-template-columns: 1fr; }
  html[lang='en'] .document-cover { min-height: auto; display: grid; grid-template-columns: 32px 1fr; gap: 4px 16px; padding: 16px; }
  html[lang='en'] .document-cover svg { grid-row: 1 / 3; margin-bottom: 0; }
  html[lang='en'] .document-cover h3 { margin-top: 0; }
  html[lang='en'] .document-lines { display: none; }
  .mobile-menu { display: block; position: static; }
  .mobile-menu summary { display: flex; align-items: center; justify-content: center; gap: 4px; min-width: 44px; min-height: 44px; font-size: 12px; cursor: pointer; list-style: none; }
  .mobile-menu summary > span { font-size: 15px; transition: transform 150ms; }
  .mobile-menu[open] summary > span { transform: rotate(45deg); }
  .mobile-menu nav { position: absolute; top: calc(100% + 13px); right: 0; width: min(260px, calc(100vw - var(--gutter) - var(--gutter))); padding: 11px 18px; background: var(--surface); border: 1px solid #557149; box-shadow: 0 18px 30px #0005; }
  .mobile-menu nav a { display: block; min-height: 48px; padding: 13px 6px; font-size: 15px; }
  .mobile-menu nav a + a { border-top: 1px solid var(--line); }
  .hero-stage { --hero-type-size: 15.8vw; height: auto; min-height: calc(100svh - var(--header-height)); }
  .hero-inner { height: auto; padding-bottom: 0; }
  .hero-topline { padding-top: 19px; }
  .hero-topline > span:last-child { display: none; }
  .hero-brand-depth { margin-top: 22px; }
  .hero-display { line-height: 1.18; }
  .hero-media { width: calc(100% + 38px); height: clamp(222px, 60vw, 270px); margin-left: -19px; margin-top: 30px; }
  .hero-media-art > img { object-fit: cover; object-position: 51% 47%; }
  .hero-geometry { width: 158px; height: 158px; }
  .hero-geometry i { inset: 13px; }
  .hero-geometry b { inset: 36px; }
  .hero-figure-note { display: none; }
  .hero-copy { position: static; display: block; margin-top: 6px; }
  .hero-value h1 { font-size: 35px; line-height: 1.37; }
  .hero-value > p { margin-top: 14px; font-size: 16px; line-height: 1.85; }
  .hero-principle { display: none; }
  .hero-start { position: static; display: block; margin-top: 24px; padding: 19px 0 24px; }
  .hero-start > p { max-width: none; font-size: 11px; }
  .hero-start .actions { margin-top: 18px; gap: 21px; }
  .hero-start .button { padding: 12px 19px; }
  .hero-start .text-link { font-size: 14px; }
  .hero-handoff { left: 22px; right: 22px; top: calc(36px + clamp(222px, 60vw, 270px)); padding-top: 12px; }
  .hero-handoff > div { gap: 11px 19px; font-size: 13px; }
  .media-fallback { font-size: 18px; gap: 17px; }
  .section { padding-block: 44px; }
  .section-heading { margin-bottom: 29px; }
  .section-kicker { margin-bottom: 20px; }
  .section-intro { margin-top: 19px; font-size: 16px; line-height: 1.85; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability, .capability:nth-child(even) { grid-template-columns: 42px minmax(0,1fr); gap: 18px; padding: 26px 0; border-left: 0; }
  .capability + .capability { border-top: 1px solid var(--line); }
  .capability-icon { width: 41px; height: 41px; }
  .capability h3 { font-size: 21px; }
  .capability-text > p:last-child { margin-top: 11px; line-height: 1.85; }
  .workspace-titlebar { padding: 12px 14px; gap: 12px; font-size: 10px; }
  .window-points { gap: 4px; }
  .window-points i { width: 4px; height: 4px; }
  .work-tabs { padding-inline: 9px; }
  .work-tabs button { min-height: 54px; padding: 13px 9px; font-size: 14px; }
  .work-panel { min-height: 382px; padding: 22px 18px 24px; }
  .panel-stage { min-height: 332px; }
  .panel-label { margin-bottom: 19px; font-size: 10px; }
  .request-block { margin-bottom: 24px; }
  .request-block > p { font-size: 23px; line-height: 1.6; }
  .response-block { gap: 12px; }
  .response-block > img { width: 25px; height: 25px; }
  .response-block h3 { font-size: 17px; line-height: 1.7; }
  .response-block p { font-size: 15px; line-height: 1.85; }
  .context-line { gap: 9px 17px; font-size: 11px; }
  .panel-title { font-size: 18px; line-height: 1.7; }
  .process-list { margin-top: 13px; }
  .process-list li { gap: 15px; padding: 13px 0; }
  .process-list p { font-size: 14px; line-height: 1.8; }
  .artifact-view { grid-template-columns: 113px minmax(0,1fr); gap: 15px; }
  .document-cover { min-height: 192px; padding: 17px 13px; }
  .document-cover svg { width: 28px; height: 35px; }
  .document-cover h3 { font-size: 19px; line-height: 1.5; }
  .document-cover .mono { font-size: 9px; }
  .file-name { font-size: 11px; line-height: 1.7; margin-bottom: 9px; }
  .artifact-description h3 { font-size: 17px; line-height: 1.65; }
  .artifact-description p { font-size: 14px; line-height: 1.8; }
  .artifact-description ul { font-size: 12px; padding-left: 16px; margin-top: 11px; }
  .workspace-bottom { padding: 12px 14px; font-size: 11px; }
  .workspace-bottom > span:last-child { display: none; }
  .workspace-caption { display: block; margin-top: 17px; font-size: 13px; line-height: 1.8; }
  .workspace-caption .text-link { margin-top: 12px; font-size: 14px; }
  .connection-map { display: flex; flex-direction: column; align-items: stretch; gap: 22px; padding: 28px 0; }
  .connection-route h3 { font-size: 24px; }
  .runtime-list { column-gap: 15px; margin-top: 23px; font-size: 14px; }
  .runtime-list li { gap: 9px; }
  .gateway-path { grid-template-columns: minmax(0,1fr) 10px minmax(0,1.5fr) 10px minmax(0,1fr); gap: 4px; }
  .gateway-model { padding-inline: 12px; }
  .connection-route > p:last-child { margin-top: 17px; }
  .connection-bridge { height: 48px; gap: 15px; width: 55%; margin-inline: auto; }
  .connection-bridge img { width: 40px; height: 40px; }
  .connection-conclusion { margin-top: 23px; font-size: 16px; }
  .trust-layout { display: block; }
  .trust-statement h2 { font-size: 43px; line-height: 1.36; }
  .trust-statement > p:not(.section-kicker) { margin-top: 20px; font-size: 17px; }
  .trust-signature { margin-top: 23px; }
  .trust-principles { margin-top: 31px; }
  .trust-principles article { grid-template-columns: 18px minmax(0,1fr); gap: 17px; padding: 24px 0; }
  .trust-principles h3 { font-size: 20px; }
  .trust-principles p { margin-top: 12px; }
  .start-steps li, .start-steps li + li { gap: 20px; padding-block: 25px; }
  .step-number { font-size: 29px; }
  .start-steps h3 { font-size: 21px; }
  .start-steps p { font-size: 16px; line-height: 1.85; }
  .faq-layout { gap: 29px; }
  .faq-layout h2 { font-size: 31px; }
  .faq-intro { font-size: 16px; }
  .faq-list summary { font-size: 16px; min-height: 76px; padding: 20px 0; gap: 17px; }
  .faq-plus { font-size: 19px; }
  .faq-answer { padding: 0 7px 23px 0; }
  .faq-answer p { font-size: 16px; }
  .closing-section { padding-block: 47px 40px; }
  .closing-section h2 { font-size: 39px; line-height: 1.38; }
  .closing-section .actions { gap: 12px; margin-top: 26px; }
  .closing-section .button { font-size: 14px; padding: 12px 17px; gap: 8px; }
  .closing-section > .wrap > p:not(.section-kicker) { margin-top: 21px; font-size: 15px; }
  .closing-status { margin-top: 25px; }
  .footer-content { flex-wrap: wrap; gap: 22px; }
  .footer-brand { width: 135px; }
  .footer-content > p { order: 3; width: 100%; font-size: 12px; }
  .back-top { margin-left: auto; font-size: 12px; }
  .site-footer { padding-block: 26px; }
}
@media (max-width: 360px) {
  :root { --gutter: 18px; }
  .brand { width: 117px; }
  .nav-actions { gap: 8px; }
  .nav-release { padding-inline: 8px; }
  .site-nav { gap: 8px; }
  .nav-actions { gap: 6px; }
  html[lang='en'] .hero-start .actions { align-items: flex-start; flex-direction: column; gap: 8px; }
  .hero-value h1 { font-size: 32px; }
  .hero-start .actions { gap: 16px; }
  .hero-start .button { padding-inline: 15px; font-size: 14px; }
  .hero-start .text-link { font-size: 13px; }
  .artifact-view { grid-template-columns: 1fr; }
  .document-cover { min-height: auto; display: grid; grid-template-columns: 32px 1fr; gap: 4px 16px; padding: 16px; }
  .document-cover svg { grid-row: 1 / 3; margin-bottom: 0; }
  .document-cover h3 { margin-top: 0; }
  .document-lines { display: none; }
  .artifact-description h3 br { display: none; }
  .closing-section .actions { flex-direction: column; }
  .closing-section .button { width: 100%; }
}
@media (min-width: 701px) and (max-width: 900px) {
  html[lang='en'] .hero-handoff { top: 56%; }
}
@media (min-width: 701px) and (max-height: 830px) {
  html[lang='en'] .hero-handoff { top: 46%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .button:hover, .button:active, .text-link:hover span { transform: none; }
}