/* ONFUELS V2 · Buildless, local assets, progressive motion. */
:root {
  color-scheme: dark;
  --bg: #080a09; --surface: #111713; --text: #f1f3ed;
  --muted: #a4ada4; --green: #89c900; --line: #2b342d;
  --paper: #eef0e8; --ink: #142016;
  --gutter: clamp(22px, 5.7vw, 112px);
  --ease: cubic-bezier(.22, 1, .36, 1);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; -webkit-font-smoothing: antialiased; }
::selection { background: #89c900; color: #101710; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
button, a, summary { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button:focus-visible, a:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--green); outline-offset: 6px; }
[hidden] { display: none !important; }
img { max-width: 100%; display: block; }
figure, h1, h2, h3, p { margin: 0; }
p { line-height: 1.75; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.icon-library { width: 0; height: 0; position: absolute; overflow: hidden; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip { position: fixed; z-index: 100; top: -90px; left: 15px; padding: 16px 25px; background: var(--paper); color: var(--ink); }
.skip:focus { top: 12px; }
.container { width: 100%; max-width: 1760px; margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(80px, 9vw, 150px); }
.eyebrow, .tiny-label { font-size: 10px; font-weight: 550; letter-spacing: .14em; line-height: 1.6; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 38px; }
.tiny-label { color: var(--muted); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; background: var(--green); flex-shrink: 0; }
.green { color: var(--green); }
h1, h2, h3 { font-weight: 500; letter-spacing: -.055em; }
h2 { font-size: clamp(42px, 5.2vw, 78px); line-height: 1.08; }
h3 { font-size: clamp(28px, 2.8vw, 42px); line-height: 1.15; }
.section-head { display: grid; grid-template-columns: 1.35fr 1fr; align-items: end; gap: 70px; }
.section-head > p { max-width: 380px; color: var(--muted); font-size: 15px; justify-self: end; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-height: 55px; padding: 17px 23px; border-radius: 4px; background: var(--paper); color: #142010; font-size: 12px; font-weight: 600; line-height: 1.5; transition: background .25s, border-radius .35s, box-shadow .25s; }
.button .icon { width: 18px; height: 18px; transition: transform .35s var(--ease); }
.button:hover { background: #d7eac3; border-radius: 4px 15px 4px 4px; }
.button:hover .icon { transform: translate(3px, -3px); }
.text-link { display: inline-flex; align-items: center; gap: 16px; font-size: 12px; min-height: 44px; }
.text-link .icon { transition: transform .3s var(--ease); }
.text-link:hover .icon { transform: translateX(5px); }
.brand { display: inline-flex; flex-shrink: 0; align-items: center; }
.brand img { width: 156px; height: auto; }
.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 90; background: var(--green); transform-origin: left; transform: scaleX(0); pointer-events: none; }
.site-header { position: absolute; z-index: 50; left: 0; right: 0; top: 0; padding: 30px var(--gutter); display: flex; justify-content: space-between; gap: 25px; align-items: center; border-bottom: 1px solid #ffffff1a; transition: background .3s, padding .3s, border-color .3s; }
.js .site-header { position: fixed; }
.site-header.scrolled { background: #080a09f5; padding-block: 19px; border-color: var(--line); }
.site-header nav { display: flex; align-items: center; gap: 35px; font-size: 12px; }
.site-header nav a { position: relative; padding-block: 12px; }
.site-header nav a:not(.nav-contact)::after { content: ''; position: absolute; left: 0; bottom: 4px; width: 100%; height: 1px; background: var(--green); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.site-header nav a:hover::after { transform: scaleX(1); }
.site-header nav a[aria-current='location'] { color: #c6e6a7; }
.site-header .nav-contact { display: flex; gap: 27px; align-items: center; border: 1px solid #7c867580; padding: 12px 17px; border-radius: 4px; transition: border-color .2s, background .2s; }
.nav-contact:hover { border-color: var(--green); background: #111b10; }
.nav-contact .icon { width: 15px; height: 15px; }
.menu-button { display: none; }
/* A quiet opening, with movement tied to native page scroll. */
.hero { position: relative; min-height: 790px; height: min(100svh, 1120px); display: flex; flex-direction: column; justify-content: center; overflow: clip; background: #080a09; }
.hero-media, .hero-shade { position: absolute; inset: 0; }
.hero-media { clip-path: inset(0 var(--hero-inset, 0px) round var(--hero-radius, 0px)); }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: translate3d(0, var(--hero-media-y, 0px), 0) scale(var(--hero-scale, 1.04)); }
.hero-shade { background: linear-gradient(90deg, #080a0999 0%, #080a0922 58%, transparent 80%), linear-gradient(0deg, #080a09 0%, transparent 21%); pointer-events: none; }
.hero-content { position: relative; padding-top: 108px; padding-bottom: 85px; transform: translate3d(0, var(--hero-copy-y, 0px), 0); }
.hero .eyebrow { color: #d3d9d0; font-size: 9px; margin-bottom: 36px; }
h1 { font-size: clamp(76px, 8.5vw, 138px); line-height: .99; letter-spacing: -.065em; max-width: 1000px; }
.line { display: block; overflow: clip; padding-bottom: .06em; margin-bottom: -.06em; }
.line > span { display: block; }
.hero-copy { margin-top: 36px; }
.hero-copy p { font-size: 16px; color: #cbd0c7; line-height: 1.65; margin-bottom: 29px; }
.hero-bottom { display: flex; justify-content: space-between; align-items: center; gap: 30px; position: absolute; bottom: 35px; left: 0; right: 0; font-size: 9px; letter-spacing: .12em; }
.scroll-cue { display: inline-flex; align-items: center; gap: 17px; min-height: 44px; }
.scroll-line { position: relative; display: block; width: 1px; height: 31px; overflow: hidden; background: #7d8a7280; }
.scroll-line::after { content: ''; position: absolute; top: 0; left: 0; width: 1px; height: 13px; background: var(--green); }
.hero-caption { color: #b4bcb0; font-size: 8px; }
.hero-caption span { padding-inline: 10px; color: var(--green); }
.motion .hero h1 .line > span { animation: line-in 1.2s var(--ease) both; }
.motion .hero h1 .line:nth-child(2) > span { animation-delay: .13s; }
.motion .hero-enter { animation: appear 1.2s var(--ease) .35s both; }
.motion .site-header .brand { animation: appear .9s var(--ease) both; }
.motion .scroll-line::after { animation: scroll-cue 2.4s var(--ease) infinite; }
/* The introduction is revealed by contrast, rather than removing the words. */
.section-kicker { display: flex; justify-content: space-between; gap: 25px; }
.section-kicker > .tiny-label { font-size: 9px; }
.statement { font-size: clamp(40px, 5.2vw, 79px); max-width: 1180px; line-height: 1.15; letter-spacing: -.045em; }
.statement .word { display: inline-block; }
.intro-bottom { display: grid; grid-template-columns: 1fr 1fr; margin-top: 58px; gap: 100px; }
.intro-bottom > p { color: var(--muted); font-size: 14px; max-width: 460px; }
.intro-bottom .phase-note { justify-self: end; color: var(--text); font-size: 12px; }
.phase-note .status-dot { margin-right: 8px; }
.phase-note > span:not(.status-dot) { padding-left: 18px; color: var(--muted); }
.intro-section { border-bottom: 1px solid var(--line); }
/* One evolving diagram stays with the four chapters. */
.story-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(45px, 7vw, 120px); position: relative; margin-top: 70px; align-items: start; }
.story-visual { position: sticky; top: 112px; align-self: start; padding-block: 20px 12px; }
.scene-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; border-top: 1px solid var(--line); padding-top: 18px; }
.scene-top .tiny-label { font-size: 8px; }
.scene-step-label { color: #c4deaa; font-size: 8px; letter-spacing: .08em; }
.system-scene { display: block; width: 100%; height: auto; }
.scene-frame { perspective: 1000px; }
.scene-car { transform: translate(var(--car-x, 0px), var(--car-y, 0px)); }
.scene-scan { opacity: var(--scan-opacity, .65); }
.scene-plate { opacity: var(--plate-opacity, 1); }
.scene-phone { opacity: var(--phone-opacity, 1); transform: translateY(var(--phone-y, 0px)); }
.scene-phone-action { fill: var(--phone-color, #89c900); }
.scene-flow { opacity: var(--flow-opacity, 1); }
.scene-receipt { opacity: var(--receipt-opacity, 1); transform: translateY(var(--receipt-y, 0px)); }
.scene-route { stroke-dasharray: 100; stroke-dashoffset: var(--route-offset, 0); }
.scene-controls { display: flex; justify-content: center; gap: 8px; padding-block: 5px; }
.scene-controls a { width: 44px; height: 44px; display: grid; place-items: center; font-size: 10px; border: 1px solid #333e32; border-radius: 50%; transition: background .25s, color .25s, border-color .25s; }
.scene-controls a:hover { border-color: #9eb987; }
.scene-controls a[aria-current='step'] { background: var(--green); border-color: var(--green); color: #17200d; }
.story-visual figcaption { font-size: 9px; color: var(--muted); text-align: center; margin-top: 14px; }
.story-step { min-height: 64svh; display: flex; flex-direction: column; justify-content: center; padding-block: 75px; position: relative; scroll-margin-top: 105px; }
.step-number { font-size: 10px; letter-spacing: .13em; color: var(--green); margin-bottom: 28px; }
.story-step h3 { font-size: clamp(29px, 3vw, 45px); }
.story-step p { color: var(--muted); font-size: 14px; max-width: 360px; margin-top: 25px; }
.step-tag { display: inline-flex; gap: 12px; align-items: center; font-size: 10px; margin-top: 27px; color: #ced8c5; }
.step-tag .icon { color: #a6bf8a; width: 17px; height: 17px; }
.story-step::before { content: ''; position: absolute; top: 30px; left: 0; width: 100%; height: 1px; background: var(--line); }
.note { color: var(--muted); font-size: 11px; line-height: 1.8; }
.story-note { max-width: 720px; margin-top: 35px; }
/* A light interlude preserves the original product concept. */
.light { background: var(--paper); color: var(--ink); color-scheme: light; }
.light .tiny-label { color: #576650; }
.light .section-head > p { color: #52604c; }
.product-section { position: relative; border-radius: var(--product-radius, 0px) var(--product-radius, 0px) 0 0; }
.product { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 100px; margin-top: 72px; }
.phone-wrap { position: relative; display: flex; flex-direction: column; align-items: center; padding: 30px 0 15px; }
.phone-orbit { position: absolute; width: min(100%, 480px); aspect-ratio: 1; border: 1px solid #c7cfbe; border-radius: 50%; top: 50%; left: 50%; transform: translate(-50%, -54%) scale(var(--orbit-scale, 1)); }
.phone-orbit::after { content: ''; position: absolute; inset: 35px; border: 1px solid #d8decf; border-radius: 50%; }
.phone { position: relative; width: 280px; min-height: 550px; background: #f9faf4; border: 6px solid #172018; border-radius: 43px; padding: 46px 18px 15px; box-shadow: 20px 25px 45px #3b493221, 1px 0 0 2px #9aa48f; transform: rotate(var(--phone-rotate, -4deg)) translateY(var(--product-phone-y, 0px)); }
.phone-status { display: flex; justify-content: space-between; font-size: 8px; font-weight: 650; position: absolute; top: 17px; left: 22px; right: 22px; }
.notch { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 78px; height: 19px; border-radius: 20px; background: #172018; }
.phone-logo { width: 98px; height: auto; margin-top: 7px; }
.phone-small { font-size: 7px; letter-spacing: .13em; margin-top: 25px; color: #526347; }
.phone-heading { font-size: 30px; line-height: 1.07; margin: 10px 0 22px; font-weight: 550; }
.phone-card { padding: 17px 15px 12px; border-radius: 13px; background: #e7eddd; }
.phone-card-label { display: flex; gap: 6px; align-items: center; font-size: 7px; letter-spacing: .1em; }
.phone-card-label .icon { width: 13px; height: 13px; }
.pump { display: flex; align-items: center; gap: 22px; font-size: 62px; line-height: 1.3; letter-spacing: -.08em; }
.pump > span { font-size: 8px; letter-spacing: .08em; }
.phone-action { display: flex; justify-content: space-between; align-items: center; gap: 4px; padding-top: 11px; border-top: 1px solid #c0ccaf; font-size: 8px; }
.phone-action .icon { width: 14px; height: 14px; }
.phone-row { padding-block: 16px; display: flex; align-items: center; gap: 8px; font-size: 9px; border-bottom: 1px solid #d9dfd0; }
.phone-row .icon { width: 15px; height: 15px; }
.phone-nav { display: flex; justify-content: space-around; gap: 15px; font-size: 7px; color: #68745e; margin-top: 19px; }
.phone-nav > span { display: flex; align-items: center; flex-direction: column; gap: 7px; }
.phone-nav .icon { width: 15px; height: 15px; }
.phone-wrap figcaption { position: relative; margin-top: 42px; font-size: 9px; color: #5f6c55; }
.features > .tiny-label { margin-bottom: 24px; }
.features details { border-top: 1px solid #bec8b4; padding-block: 25px; }
.features details:last-of-type { border-bottom: 1px solid #bec8b4; }
summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 20px; font-size: clamp(16px, 1.5vw, 21px); letter-spacing: -.025em; min-height: 30px; }
summary::-webkit-details-marker { display: none; }
summary > span { font-size: 9px; color: #60704f; letter-spacing: 0; }
summary > b { font-size: 24px; font-weight: 400; margin-left: auto; transition: transform .3s var(--ease); }
details[open] summary > b { transform: rotate(45deg); }
details p { margin: 20px 30px 0 34px; font-size: 13px; color: #52604a; }
.product-note { display: flex; align-items: center; gap: 10px; font-size: 10px; color: #52604a; margin-top: 30px; }
.product-note .icon { width: 17px; height: 17px; }
/* Horizontal storytelling: native scroll when enhancement is unavailable. */
.technology-section { background: #101510; position: relative; padding-block: 90px; }
.tech-header { display: flex; justify-content: space-between; align-items: end; gap: 25px; padding-bottom: 40px; }
.tech-header .eyebrow { margin-bottom: 20px; }
.tech-header h2 { font-size: clamp(35px, 4.3vw, 62px); }
.tech-controls { display: flex; gap: 10px; padding-bottom: 4px; }
.circle-button { width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid #58644f; background: transparent; border-radius: 50%; transition: background .25s, color .25s; }
.circle-button:hover { background: var(--green); color: var(--ink); border-color: var(--green); }
.circle-button[disabled] { opacity: .3; cursor: default; background: none; color: inherit; border-color: #58644f; }
.reverse { transform: rotate(180deg); }
.tech-window { overflow-x: auto; overscroll-behavior-x: contain; scrollbar-color: #6c8154 #202b1e; scrollbar-width: thin; scroll-snap-type: x mandatory; }
.tech-track { display: flex; gap: 32px; width: max-content; padding-inline: var(--gutter); }
.tech-panel { width: min(76vw, 1080px); display: grid; grid-template-columns: 44% 56%; background: #19201a; min-height: 400px; overflow: hidden; scroll-snap-align: center; }
.tech-image { overflow: hidden; min-height: 100%; }
.tech-image img { width: 100%; height: 100%; aspect-ratio: 3/4; max-height: 500px; object-fit: cover; transform: scale(1.02); }
.tech-text { padding: clamp(28px, 3.4vw, 60px); display: flex; flex-direction: column; justify-content: center; }
.tech-text > .tiny-label { font-size: 9px; color: #c4d7b2; margin-bottom: 32px; }
.tech-text h3 { font-size: clamp(29px, 3.2vw, 46px); line-height: 1.1; }
.tech-text p { margin-top: 24px; font-size: 13px; color: #b6c0b0; max-width: 320px; }
.tech-state { margin-top: 35px; font-size: 8px; letter-spacing: .1em; color: #bfd69f; display: block; }
.tech-footer { display: flex; align-items: center; gap: 35px; padding-top: 32px; }
.tech-footer .tiny-label { font-size: 8px; }
.tech-progress { height: 1px; flex: 1; background: #37432e; }
.tech-progress span { display: block; height: 1px; background: #a9d075; width: 100%; transform-origin: left; transform: scaleX(var(--tech-progress, .25)); }
.tech-count { font-size: 10px; font-variant-numeric: tabular-nums; }
.horizontal-motion .technology-section { height: var(--tech-height, 270svh); padding-block: 0; }
.horizontal-motion .tech-sticky { position: sticky; top: 76px; min-height: calc(100svh - 76px); display: flex; flex-direction: column; justify-content: center; padding-block: 35px; overflow: clip; }
.horizontal-motion .tech-window { overflow: clip; scroll-snap-type: none; }
.horizontal-motion .tech-track { transform: translate3d(var(--tech-x, 0px), 0, 0); }
/* Station story follows a different rhythm from the technology panels. */
.station-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 8vw, 140px); align-items: center; margin-top: 70px; }
.station-photo { position: relative; overflow: hidden; aspect-ratio: 1.04; border-radius: 3px; }
.station-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 52%; transform: scale(var(--station-scale, 1.05)); }
.station-photo::after { content: ''; position: absolute; inset: 60% 0 0; background: linear-gradient(transparent, #080a09b3); }
.station-photo figcaption { position: absolute; bottom: 23px; left: 23px; right: 23px; font-size: 8px; letter-spacing: .1em; z-index: 1; }
.station-copy h3 { font-size: clamp(28px, 2.7vw, 40px); }
.station-copy > p { font-size: 14px; color: var(--muted); max-width: 460px; margin-top: 23px; }
.value-list { list-style: none; padding: 0; margin: 32px 0; }
.value-list li { padding-block: 16px; border-bottom: 1px solid var(--line); font-size: 12px; display: flex; gap: 24px; }
.value-list li > span { font-size: 9px; color: #98bc6c; }
/* The same road imagery from the deck carries the long-term vision. */
.vision-section { position: relative; min-height: 780px; display: flex; align-items: center; overflow: clip; border-block: 1px solid var(--line); }
.vision-media { position: absolute; inset: 0 0 0 40%; }
.vision-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 60%; transform: translateY(var(--vision-y, 0px)) scale(1.12); }
.vision-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #080a09, #080a0955 45%, #080a091a), linear-gradient(0deg, #080a0977, transparent 50%); }
.vision-content { position: relative; padding-block: 100px; }
.vision-content h2 { font-size: clamp(53px, 6.5vw, 100px); letter-spacing: -.06em; line-height: 1.05; }
.vision-content h2 > span { color: #dce7d0; }
.vision-content em { font-style: normal; color: #a7c78c; }
.vision-content > p:not(.eyebrow) { margin-top: 34px; max-width: 385px; font-size: 14px; color: #c1cbb8; }
.vision-caption { position: absolute; right: var(--gutter); bottom: 36px; font-size: 8px; color: #d4dfca; }
/* Present status, next milestone, ambition: no invented delivery dates. */
.pilot-section { border-bottom: 1px solid var(--line); }
.roadmap { list-style: none; padding: 0; margin: 75px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.roadmap li { position: relative; border-top: 1px solid #46503e; padding: 32px 45px 0 0; }
.roadmap-dot { display: block; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: #46503e; }
.current .roadmap-dot { background: var(--green); }
.roadmap li > .tiny-label { font-size: 9px; }
.roadmap .current > .tiny-label { color: #b3db82; }
.roadmap h3 { font-size: 26px; margin-top: 16px; }
.roadmap p { color: var(--muted); font-size: 13px; margin-top: 20px; max-width: 290px; }
.contact-section h2 { font-size: clamp(57px, 8vw, 122px); }
.contact-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; margin-top: 45px; align-items: start; }
.contact-bottom > p { font-size: 14px; color: var(--muted); max-width: 400px; }
.contact-action { justify-self: end; }
#contact-text { font-size: 13px; color: #d4e2c8; margin-bottom: 15px; }
.contact-action .text-link { display: flex; color: var(--muted); }
#email { margin-bottom: 15px; overflow-wrap: anywhere; }
.site-footer { padding-block: 45px 30px; border-top: 1px solid var(--line); }
.footer-top { display: flex; align-items: center; gap: 30px; justify-content: space-between; }
.footer-top > p { color: var(--muted); font-size: 11px; }
.to-top { display: flex; align-items: center; gap: 15px; font-size: 10px; min-height: 44px; }
.to-top .icon { width: 17px; height: 17px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 25px; font-size: 9px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 26px; margin-top: 40px; }
.footer-note { color: #8f9c88; max-width: 860px; font-size: 9px; margin-top: 20px; line-height: 1.8; }
/* Progressive reveals: every block is readable without JS or motion support. */
.motion .reveal { transition: opacity .8s var(--ease), transform 1s var(--ease); }
.motion .reveal.pending { opacity: 0; transform: translateY(25px); }
.reveal-line { display: block; overflow: clip; padding-bottom: .09em; margin-bottom: -.09em; }
.reveal-line > span { display: block; }
.motion [data-lines] .reveal-line > span { transition: transform 1.05s var(--ease); transition-delay: var(--line-delay, 0ms); }
.motion [data-lines].pending .reveal-line > span { transform: translateY(112%); }
.motion .image-reveal { transition: clip-path 1.2s var(--ease); clip-path: inset(0 round 3px); }
.motion .image-reveal.pending { clip-path: inset(8% 5% 8% 5% round 25px); }
@keyframes line-in { from { transform: translateY(115%); } to { transform: translateY(0); } }
@keyframes appear { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scroll-cue { 0% { transform: translateY(-15px); } 65%, 100% { transform: translateY(40px); } }
@media (min-width: 1800px) { .hero-media img { object-position: center 65%; } }
@media (max-height: 780px) and (min-width: 1000px) {
  .hero { min-height: 700px; }
  .hero-content { padding-top: 120px; padding-bottom: 100px; }
  h1 { font-size: clamp(72px, 7.8vw, 115px); }
  .hero .eyebrow { margin-bottom: 26px; }
  .hero-copy { margin-top: 27px; }
  .hero-copy p { font-size: 14px; margin-bottom: 20px; }
  .story-visual { top: 90px; }
  .system-scene { max-height: 440px; }
  .tech-image img { max-height: 370px; }
  .tech-panel { min-height: 340px; }
  .tech-header { padding-bottom: 25px; }
  .tech-header h2 { font-size: 45px; }
  .tech-text h3 { font-size: 36px; }
  .tech-state { margin-top: 22px; }
}
@media (max-width: 1000px) {
  .site-header nav { gap: 20px; }
  .section-head { gap: 35px; grid-template-columns: 1.2fr 1fr; }
  .hero { min-height: 780px; }
  .hero-media img { object-position: 59% center; }
  .hero-shade { background: linear-gradient(90deg, #080a09aa, #080a0922), linear-gradient(0deg, #080a09, transparent 35%); }
  .hero-content { padding-top: 120px; }
  .intro-bottom { gap: 45px; }
  .story-layout { gap: 35px; grid-template-columns: 1fr 1fr; }
  .scene-top { flex-wrap: wrap; }
  .story-step h3 { font-size: 31px; }
  .product { gap: 50px; }
  .tech-panel { width: 85vw; }
  .tech-text { padding: 30px; }
  .station-grid { gap: 45px; }
  .station-copy .button { gap: 18px; font-size: 11px; }
  .vision-section { min-height: 700px; }
}
@media (max-width: 800px) {
  html { scroll-padding-top: 90px; }
  .section { padding-block: 75px; }
  .site-header { padding-block: 22px; flex-wrap: wrap; }
  .site-header.scrolled { padding-block: 17px; }
  .brand img { width: 130px; }
  .menu-button { display: flex; align-items: center; gap: 20px; border: 1px solid #80907066; border-radius: 3px; min-height: 44px; padding: 12px 15px; background: #0d140f80; font-size: 11px; }
  .menu-lines { position: relative; width: 17px; height: 10px; display: block; }
  .menu-lines::before, .menu-lines::after { content: ''; position: absolute; left: 0; width: 100%; height: 1px; background: currentColor; transition: transform .3s, top .3s; }
  .menu-lines::before { top: 2px; }.menu-lines::after { top: 8px; }
  [aria-expanded='true'] .menu-lines::before { transform: rotate(45deg); top: 5px; }
  [aria-expanded='true'] .menu-lines::after { transform: rotate(-45deg); top: 5px; }
  .site-header nav { width: 100%; flex-direction: column; align-items: stretch; gap: 0; background: #080a09; padding: 15px 20px; border: 1px solid var(--line); }
  .site-header nav a { padding-block: 15px; }
  .site-header .nav-contact { margin-top: 10px; justify-content: space-between; }
  .js .site-header nav:not(.open) { display: none; }
  .site-header:has(nav.open) { background: #080a09; }
  .hero { min-height: 790px; height: 100svh; max-height: 1100px; }
  h1 { font-size: clamp(68px, 10vw, 95px); }
  .hero-content { padding-top: 120px; padding-bottom: 110px; }
  .hero-media img { object-position: 64% center; }
  .hero-bottom { bottom: 24px; }
  .hero-caption { display: none; }
  .section-head { grid-template-columns: 1fr; gap: 25px; }
  .section-head > p { justify-self: start; max-width: 490px; font-size: 14px; }
  h2 { font-size: clamp(42px, 7vw, 62px); }
  .eyebrow { margin-bottom: 28px; font-size: 9px; }
  .section-kicker > .tiny-label { display: none; }
  .statement { font-size: clamp(38px, 6vw, 54px); }
  .intro-bottom { margin-top: 35px; grid-template-columns: 1fr; gap: 25px; }
  .intro-bottom .phase-note { justify-self: start; }
  .story-layout { grid-template-columns: 1fr; gap: 25px; margin-top: 40px; }
  .story-visual { position: relative; top: auto; width: min(100%, 530px); margin-inline: auto; }
  .scene-top { flex-wrap: nowrap; }
  .scene-controls { display: none; }
  .scene-step-label { display: none; }
  .story-step { min-height: auto; padding-block: 40px; padding-left: 45px; border-top: 1px solid var(--line); }
  .story-step::before { display: none; }
  .story-step::after { content: ''; position: absolute; width: 6px; height: 6px; border: 1px solid #7b9c5b; border-radius: 50%; left: 4px; top: 45px; }
  .step-number { margin-bottom: 18px; }
  .story-step h3 { font-size: 34px; }
  .story-step p { max-width: 500px; margin-top: 20px; }
  .step-tag { margin-top: 20px; }
  .story-note { margin-top: 0; }
  .product { gap: 45px; margin-top: 45px; grid-template-columns: 1fr; }
  .phone-wrap { grid-row: 1; }
  .features { max-width: 580px; width: 100%; justify-self: center; }
  summary { font-size: 20px; }
  .features details { padding-block: 22px; }
  .technology-section { padding-block: 75px 55px; }
  .tech-header { align-items: end; padding-bottom: 30px; }
  .tech-header h2 { font-size: 38px; max-width: 370px; }
  .tech-controls { gap: 6px; }
  .circle-button { width: 42px; height: 42px; }
  .tech-panel { width: 83vw; grid-template-columns: 43% 57%; min-height: 380px; }
  .tech-text { padding: 27px; }
  .tech-text h3 { font-size: 31px; }
  .tech-image img { max-height: 440px; }
  .tech-track { gap: 20px; padding-bottom: 16px; }
  .tech-footer { gap: 20px; }
  .tech-footer .tiny-label { max-width: 130px; }
  .station-grid { grid-template-columns: 1fr; margin-top: 40px; gap: 40px; }
  .station-photo { max-height: 530px; aspect-ratio: 1.25; }
  .station-copy h3 { font-size: 35px; }
  .station-copy > p { max-width: 560px; }
  .vision-section { min-height: 720px; }
  .vision-media { inset: 0; }
  .vision-media::after { background: linear-gradient(90deg, #080a09d9, #080a0955), linear-gradient(0deg, #080a09bb, transparent 70%); }
  .vision-content h2 { font-size: clamp(50px, 8vw, 74px); }
  .vision-content > p:not(.eyebrow) { max-width: 350px; }
  .roadmap { margin-top: 45px; }
  .roadmap li { padding-right: 22px; }
  .roadmap h3 { font-size: 24px; }
  .roadmap p { font-size: 12px; }
  .contact-section h2 { font-size: clamp(52px, 8.7vw, 80px); }
  .contact-bottom { grid-template-columns: 1fr; gap: 30px; margin-top: 30px; }
  .contact-action { justify-self: start; }
  .footer-top { flex-wrap: wrap; gap: 20px; }
  .footer-top > p { width: 100%; order: 3; }
}
@media (max-width: 480px) {
  :root { --gutter: 23px; }
  .hero { min-height: 760px; height: 100svh; }
  .hero-content { padding-top: 60px; padding-bottom: 180px; }
  .hero h1 { font-size: clamp(51px, 11.7vw, 69px); letter-spacing: -.065em; }
  .hero .eyebrow { font-size: 7px; letter-spacing: .12em; gap: 7px; margin-bottom: 24px; }
  .hero-media img { object-position: 67% center; }
  .hero-shade { background: linear-gradient(0deg, #080a09, transparent 40%), linear-gradient(90deg, #080a09d9, #080a0944); }
  .hero-copy { margin-top: 25px; }
  .hero-copy p { font-size: 13px; }
  .hero-bottom { font-size: 7px; letter-spacing: .09em; }
  .scroll-cue { gap: 12px; }
  .button { min-height: 53px; font-size: 11px; padding: 16px 20px; }
  .intro-bottom > p { font-size: 13px; }
  h2 { font-size: clamp(35px, 9vw, 43px); }
  .statement { font-size: clamp(34px, 8.5vw, 41px); }
  .story-step { padding-left: 28px; }
  .story-step h3 { font-size: 30px; }
  .story-step p { font-size: 13px; }
  .scene-top .tiny-label { font-size: 7px; }
  .product { margin-top: 30px; }
  .phone { width: 258px; min-height: 520px; padding-inline: 17px; border-radius: 39px; }
  .phone-heading { font-size: 27px; }
  .phone-orbit { width: 310px; max-width: 100%; }
  summary { font-size: 17px; gap: 13px; }
  details p { margin-inline: 26px 10px; font-size: 12px; }
  .product-note { font-size: 9px; }
  .tech-header { align-items: start; flex-direction: column; gap: 22px; }
  .tech-header h2 { font-size: 35px; }
  .tech-controls { align-self: flex-end; margin-top: -10px; }
  .tech-panel { width: 81vw; display: flex; flex-direction: column; min-height: 590px; }
  .tech-image { min-height: 0; height: 270px; }
  .tech-image img { width: 100%; height: 100%; object-position: center 45%; }
  .tech-text { padding: 26px; flex: 1; }
  .tech-text > .tiny-label { font-size: 8px; margin-bottom: 18px; }
  .tech-text h3 { font-size: 31px; }
  .tech-text p { font-size: 12px; margin-top: 17px; }
  .tech-state { margin-top: 22px; font-size: 7px; }
  .tech-footer .tiny-label { font-size: 7px; }
  .station-photo { aspect-ratio: .95; }
  .station-copy h3 { font-size: 29px; }
  .station-copy > p { font-size: 13px; }
  .vision-section { min-height: 700px; }
  .vision-content h2 { font-size: clamp(43px, 10vw, 54px); }
  .vision-content > p:not(.eyebrow) { font-size: 13px; max-width: 290px; }
  .vision-media img { object-position: 60% center; }
  .roadmap { grid-template-columns: 1fr; padding-left: 8px; }
  .roadmap li { border-top: 0; border-left: 1px solid #46503e; padding: 0 0 38px 25px; }
  .roadmap li:last-child { padding-bottom: 0; }
  .roadmap-dot { top: 5px; left: -4px; }
  .roadmap h3 { font-size: 27px; }
  .roadmap p { font-size: 13px; }
  .contact-section h2 { font-size: clamp(43px, 10.5vw, 58px); }
  .contact-bottom > p { font-size: 13px; }
  #contact-text { font-size: 12px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal.pending, .motion .reveal.pending { opacity: 1; transform: none; }
  .motion [data-lines].pending .reveal-line > span { transform: none; }
  .motion .image-reveal.pending { clip-path: none; }
  .hero-media img { transform: none; }
  .phone { transform: none; }
  .statement .word { opacity: 1 !important; }
}
@media print {
  body { background: white; color: black; }
  .site-header, .reading-progress, .hero-media, .hero-shade, .tech-controls, .hero-bottom, .scene-controls { display: none; }
  .hero { height: auto; min-height: 0; }.hero-content { padding-block: 30px; }
  .section { padding-block: 30px; }.hero-copy p, p, .tiny-label { color: #333; }
  .story-visual { position: static; }.story-step { min-height: 0; padding-block: 25px; }
  .technology-section, .horizontal-motion .technology-section { height: auto !important; }
  .horizontal-motion .tech-sticky { position: static; min-height: 0; }
  .tech-window { overflow: visible; }.tech-track, .horizontal-motion .tech-track { display: block; width: 100%; transform: none; padding: 20px; }
  .tech-panel { width: 100%; min-height: 0; break-inside: avoid; margin-bottom: 20px; }
  .motion .reveal.pending { opacity: 1; transform: none; }.motion [data-lines].pending .reveal-line > span { transform: none; }
}
.motion-toggle { border: 0; border-bottom: 1px solid #536248; background: none; color: var(--muted); padding: 12px 0; min-height: 44px; font-size: 10px; }
.motion-toggle:hover { color: var(--text); }
.motion-toggle:disabled { cursor: default; }
.reduced-motion .hero-media img, .reduced-motion .hero-content, .reduced-motion .phone, .reduced-motion .vision-media img, .reduced-motion .station-photo img { transform: none; }
.reduced-motion .story-visual { position: static; }
.reduced-motion .story-step { min-height: auto; padding-block: 40px; }
.reduced-motion .story-step::before { top: 0; }
.reduced-motion .image-reveal, .reduced-motion [data-lines] .reveal-line > span { clip-path: none; transform: none; }
.reduced-motion *, .reduced-motion *::before, .reduced-motion *::after { animation: none !important; transition: none !important; }
html:has(body.reduced-motion) { scroll-behavior: auto; }
/* Leave room for the open-state cross without creating a scrollable summary. */
summary { padding-right: 8px; }
summary > b { width: 24px; height: 24px; line-height: 1; display: grid; place-items: center; flex-shrink: 0; }
@media (min-width: 801px) { .system-scene { max-height: calc(100svh - 290px); } }
/* Controls that need scripts appear only after enhancement succeeds. */
body:not(.js) .site-header { position: relative; background: var(--bg); }
body:not(.js) .menu-button, body:not(.js) .motion-toggle, body:not(.js) .tech-controls { display: none; }
@media (max-width: 800px) { .circle-button { width: 44px; height: 44px; } }


/* V2.1 · Five measurable pilot targets, deliberately separated from achieved results. */
.impact-section { position: relative; isolation: isolate; overflow: hidden; background: #101811; border-block: 1px solid #2c392d; }
.impact-section::before { content: ''; position: absolute; pointer-events: none; z-index: -1; inset: 0; background: radial-gradient(ellipse 45% 55% at 92% 4%, #3650213b, transparent 78%); }
.impact-head { display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 65px; }
.impact-head .eyebrow { color: #cadcbd; }
.impact-head h2 { max-width: 900px; }
.impact-intro { max-width: 390px; justify-self: end; color: #acbba8; font-size: 15px; line-height: 1.8; padding-bottom: 5px; }
.impact-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-block: 1px solid #4a5d41; margin-top: 71px; }
.impact-metric { position: relative; min-width: 0; padding: 27px 17px 30px 24px; border-right: 1px solid #354634; transition: background .35s var(--ease); }
.impact-metric:first-child { padding-left: 0; }
.impact-metric:last-child { border-right: 0; }
.impact-metric:hover { background: #a8d67b0b; }
.impact-metric::before { content: ''; display: block; position: absolute; top: -2px; left: 23px; width: 25px; height: 3px; background: #89c900; }
.impact-metric:first-child::before { left: 0; }
.impact-index { display: block; min-height: 29px; color: #a8bba0; font-size: 9px; letter-spacing: .09em; line-height: 1.6; font-weight: 600; }
.impact-value { margin-top: 31px; color: #e7f3dc; font-size: clamp(48px, 4.5vw, 72px); line-height: 1; letter-spacing: -.065em; font-weight: 500; font-variant-numeric: lining-nums tabular-nums; white-space: nowrap; }
.impact-value span { font-size: .57em; color: #a6d56b; margin-left: 3px; vertical-align: .12em; }
.impact-metric h3 { margin-top: 22px; color: #bdcbb8; font-size: 15px; font-weight: 450; letter-spacing: -.012em; line-height: 1.48; }
.impact-footer { display: flex; align-items: center; gap: 13px; margin-top: 24px; }
.impact-marker { flex-shrink: 0; width: 6px; height: 6px; border-radius: 50%; border: 1px solid #accf85; }
.impact-footer p { color: #a8b6a4; font-size: 11px; line-height: 1.55; }
.impact-link { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; margin-left: auto; color: #dbe7d2; white-space: nowrap; min-height: 44px; }
.impact-link .icon { width: 16px; height: 16px; transition: transform .3s var(--ease); }
.impact-link:hover .icon { transform: translateX(4px); }
@media (min-width: 801px) and (max-width: 1180px) {
  .impact-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .impact-metric { min-height: 205px; border-bottom: 1px solid #354634; }
  .impact-metric:nth-child(3) { border-right: 0; }
  .impact-metric:nth-child(n+4) { border-bottom: 0; }
  .impact-metric:first-child { padding-left: 24px; }
  .impact-metric:first-child::before { left: 23px; }
  .impact-value { font-size: clamp(49px, 5.4vw, 68px); }
}
@media (max-width: 800px) {
  .impact-head { grid-template-columns: 1fr; gap: 24px; }
  .impact-intro { justify-self: start; max-width: 560px; font-size: 14px; }
  .impact-grid { margin-top: 44px; grid-template-columns: repeat(2, minmax(0,1fr)); }
  .impact-metric { padding: 23px 15px 26px; min-height: 182px; border-bottom: 1px solid #354634; }
  .impact-metric:nth-child(2n) { border-right: 0; }
  .impact-metric:first-child { padding-left: 15px; }
  .impact-metric:first-child::before { left: 15px; }
  .impact-metric:last-child { grid-column: span 2; border-bottom: 0; }
  .impact-metric:nth-child(4) { border-bottom: 1px solid #354634; }
  .impact-value { margin-top: 22px; font-size: clamp(43px, 7vw, 65px); }
  .impact-index { font-size: 8px; }
  .impact-metric h3 { margin-top: 16px; font-size: 14px; }
  .impact-footer { align-items: flex-start; }
  .impact-footer p { font-size: 10px; }
}
@media (max-width: 480px) {
  .impact-metric { min-height: 172px; }
  .impact-intro { font-size: 13px; }
  .impact-value { font-size: clamp(44px, 11vw, 55px); }
  .impact-metric h3 { font-size: 13px; }
  .impact-footer { flex-wrap: wrap; }
  .impact-link { width: 100%; margin-left: 18px; }
}
/* Readability improvements are intentionally scoped to desktop only. */
@media (min-width: 1001px) {
  .eyebrow, .tiny-label { font-size: 12px; letter-spacing: .11em; }
  .site-header nav { font-size: 14px; gap: clamp(16px, 2.1vw, 31px); }
  .site-header .nav-contact { gap: 17px; }
  .button, .text-link { font-size: 14px; }
  .hero .eyebrow { font-size: 11.5px; }
  .hero-copy p { font-size: 18px; }
  .hero-bottom { font-size: 11px; }
  .hero-caption { font-size: 10.5px; }
  .section-head > p { font-size: 17px; max-width: 435px; }
  .section-kicker > .tiny-label { font-size: 11px; }
  .intro-bottom > p, .story-step p, .station-copy > p, .vision-content > p:not(.eyebrow), .contact-bottom > p { font-size: 16px; }
  .intro-bottom > p { max-width: 520px; }
  .intro-bottom .phase-note, .value-list li, .tech-text p, .features details p, .roadmap p, #contact-text { font-size: 15px; }
  .story-step p { max-width: 435px; }
  .story-visual figcaption, .phone-wrap figcaption { font-size: 11px; }
  .scene-top .tiny-label, .scene-step-label, .tech-text > .tiny-label, .tech-footer .tiny-label, .tech-state, .vision-caption, .station-photo figcaption { font-size: 10.5px; }
  .scene-controls a, .step-number, .tech-count, .summary > span { font-size: 12px; }
  .step-tag, .note, .product-note, .footer-top > p, .motion-toggle, .to-top, .footer-bottom { font-size: 12px; }
  .value-list li > span, .features summary > span { font-size: 11px; }
  .tech-text p { max-width: 395px; }
  .tech-state { line-height: 1.6; }
  .footer-note { font-size: 11.5px; max-width: 980px; }
  .phone-status { font-size: 9px; }
  .phone-small, .phone-card-label, .phone-nav { font-size: 8.5px; }
  .phone-row { font-size: 10px; }
  .pump > span, .phone-action { font-size: 9px; }
  .impact-intro { font-size: 17px; }
  .impact-index { font-size: 10px; }
  .impact-metric h3 { font-size: 16px; }
  .impact-footer p { font-size: 12px; }
  .impact-link { font-size: 13px; }
}
@media (min-width: 1001px) and (max-width: 1180px) {
  .site-header nav { gap: 16px; font-size: 12.5px; }
  .site-header .nav-contact { gap: 12px; padding-inline: 11px; }
}
@media (min-width: 1001px) and (max-height: 780px) {
  .hero-copy p { font-size: 16px; }
}
@media print {
  .impact-section { background: white; color: black; }
  .impact-section::before { display: none; }
  .impact-grid { grid-template-columns: repeat(5,1fr); }
  .impact-metric { break-inside: avoid; }
  .impact-metric h3, .impact-value, .impact-index, .impact-footer p { color: #222; }
}

/* ==============================================================
   ONFUELS V2.3 / visual refinement
   Enhancement of the supplied V2 visual language, not a redesign.
   All effects have static fallbacks and respect reduced motion.
   ============================================================== */

/* Quiet, more deliberate navigation and interaction states. */
.site-header { gap: 20px; }
.site-header.scrolled {
  background: rgb(8 12 9 / .90);
  border-color: rgb(193 230 172 / .15);
  -webkit-backdrop-filter: blur(22px);
  backdrop-filter: blur(22px);
}
.site-header nav a:not(.nav-contact) { transition: color .25s var(--ease); }
.site-header nav a:not(.nav-contact):hover { color: #d3efbd; }
.site-header nav a[aria-current="location"]:not(.nav-contact)::after { transform: scaleX(1); }
.nav-contact { overflow: hidden; }
.nav-contact .icon { transition: transform .3s var(--ease); }
.nav-contact:hover .icon { transform: translate(3px,-3px); }
.hero-shade { background:
  linear-gradient(90deg, rgba(4,9,6,.78), rgba(4,9,6,.28) 55%, rgba(4,9,6,.04)),
  linear-gradient(0deg,#080a09 0%,rgba(8,10,9,.0) 28%, rgba(8,10,9,.2) 100%); }
.hero-side-note { position: absolute; top: 56%; right: var(--gutter); color: #e0e8dc;
  display: flex; align-items: flex-start; gap: 13px; font-size: 11px; letter-spacing: .13em;
  font-weight: 500; line-height: 2.05; text-align: left;
  text-shadow: 0 1px 22px rgba(0,0,0,.5); pointer-events: none; }
.hero-side-rule { flex: 0 0 2px; height: 47px; background: var(--green); margin-top: 7px; }
.hero .button { background: #e8f0e3; box-shadow: 0 8px 45px rgba(0,0,0,.15); }
.hero .button:hover { background: #bde69b; }
.section-head > p { line-height: 1.8; }

/* The process diagram is still the original ONFUELS illustration. */
.story-visual { z-index: 1; }
.scene-frame { background: radial-gradient(ellipse at 40% 45%, #152016 0%, #0b100b 72%);
  border: 1px solid rgba(162,209,122,.12); border-radius: 18px; position: relative; overflow: clip; }
.scene-frame::before { content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(#b6d89e0b 1px, transparent 1px), linear-gradient(90deg,#b6d89e0b 1px,transparent 1px);
  background-size: 34px 34px; mask-image: linear-gradient(90deg,transparent,black 30%,black 80%,transparent); }
.scene-frame::after { content: "LIVE SYSTEM / CONCEPT"; position: absolute; bottom: 14px; right: 18px;
  font-size: 9px; letter-spacing: .14em; color: #91a886; pointer-events: none; }
.scene-frame .system-scene { position: relative; z-index: 1; }
.scene-car,.scene-phone,.scene-receipt,.scene-flow,.scene-scan,.scene-plate,.scene-route { transition: transform .55s var(--ease), opacity .55s var(--ease), stroke-dashoffset .55s var(--ease); }
.scene-controls { margin-top: 17px; }
.scene-preview-controls { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: 9px; padding-top: 17px; margin-top: 8px; border-top: 1px solid #263327; }
.scene-demo-button { display: inline-flex; align-items: center; gap: 11px; min-height: 44px;
  border: 1px solid #46553f; border-radius: 999px; background: rgba(170,208,150,.06);
  font-size: 12px; padding: 9px 16px; transition: background .25s,border-color .25s,color .25s; }
.scene-demo-button:hover, .scene-demo-button[aria-pressed="true"] { background: rgba(151,205,117,.12); border-color: #acd08a; color: #d2f2bb; }
.scene-demo-symbol { font-size: 11px; color: #b7e596; line-height: 1; }
.scene-preview-hint { font-size: 10px; color: #97a794; letter-spacing: .03em; }
.story-step { transition: border-color .25s; }
.scene-top { padding-top: 13px; }

/* Tech chapter: elegant magazine cards, with active state driven by old scroll logic. */
.technology-section { background: #101610; }
.tech-panel { border: 1px solid #42543d55; border-radius: 15px; background: linear-gradient(145deg,#1d291e,#121c14);
  transition: border-color .4s,box-shadow .45s; }
.tech-panel.is-active { border-color: rgba(157,204,115,.44); box-shadow: inset 0 0 0 1px rgba(157,204,115,.04); }
.tech-image { position: relative; }
.tech-image::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(90deg,transparent 58%,rgba(14,22,15,.3)); }
.tech-image img { transition: transform .8s var(--ease); }
.tech-panel:hover .tech-image img { transform: scale(1.055); }
.tech-state { border-top: 1px solid #50654870; padding-top: 18px; letter-spacing: .095em; }
.tech-progress { height: 2px; }
.tech-progress span { height: 2px; }
.circle-button { transition: background .2s,color .2s,transform .3s var(--ease),border-color .2s; }
.circle-button:not(:disabled):hover { transform: scale(1.06); }
.station-photo { border-radius: 15px; }
.value-list li { transition: color .2s, padding-left .3s var(--ease), border-color .3s; }
.value-list li:hover { color: #d6efc1; padding-left: 7px; border-color: #718d64; }

/* Metrics editorial composition: 1 large anchor + 4 supporting panels. */
.impact-section { --impact-border: #354833; position: relative; overflow: clip; isolation: isolate;
  background: #0c120e; border-block: 1px solid #31432e; padding-block: clamp(95px, 8.5vw, 151px); }
.impact-section::before { content: ""; z-index: -1; position: absolute; inset: 0;
  background: radial-gradient(ellipse 38% 45% at 7% 9%,#29422762,transparent 90%),
              radial-gradient(ellipse 34% 37% at 100% 100%,#2f3e2744,transparent 85%); pointer-events:none; }
.impact-head { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(0,.65fr);
  gap: clamp(30px,6vw,110px); align-items: end; }
.impact-heading .eyebrow { color: #c5ddb2; margin-bottom: 31px; }
.impact-heading h2 { max-width: 950px; font-size: clamp(48px, 5.05vw, 80px);
  line-height: 1.095; letter-spacing: -.062em; text-wrap: balance; }
.impact-heading h2 em { display: inline; font-style: normal; color: #b1db90; }
.impact-aside { padding-bottom: 7px; }
.impact-aside-index { color: #a8c79b; letter-spacing: .15em; font-weight: 600; font-size: 10px; }
.impact-aside > p { max-width: 360px; color: #bec9b8; font-size: 16px; line-height: 1.78;
  margin-top: 20px; }
.impact-tag { display: inline-flex; align-items: center; gap: 9px; margin-top: 27px;
  border: 1px solid #526848; padding: 11px 13px; border-radius: 99px;
  font-size: 10px; letter-spacing: .07em; font-weight: 600; color: #c6e2b4; }
.impact-tag-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.impact-grid { display: grid; grid-template-columns: minmax(0,1.15fr) repeat(2,minmax(0,1fr));
  grid-template-rows: repeat(2,minmax(250px,auto)); gap: 14px; margin-top: 65px; }
.impact-card { position: relative; min-width: 0; overflow: hidden; display: flex; flex-direction: column;
  border: 1px solid var(--impact-border); border-radius: 15px; padding: 29px 30px;
  background: linear-gradient(135deg, #18231a, #131c15 80%);
  transition: border-color .36s,background .36s,box-shadow .36s,transform .5s var(--ease); }
.impact-card:not(.impact-feature):hover { transform: translateY(-4px);
  border-color: #779963; background: linear-gradient(135deg,#243321,#151e16 75%);
  box-shadow: 0 20px 50px rgba(0,0,0,.08); }
.impact-card-top { display: flex; justify-content: space-between; align-items: start; gap: 15px;
  color: #b5c5ac; font-size: 10px; font-weight: 600; line-height: 1.7; letter-spacing: .105em; }
.impact-card .impact-icon { width: 27px; height: 27px; flex: 0 0 27px; color: #9dc38a; }
.impact-number { font-size: clamp(63px,6.6vw,105px); font-weight: 500; letter-spacing: -.087em;
  line-height: 1; font-variant-numeric: tabular-nums lining-nums; white-space: nowrap; }
.impact-number > span { color: #a7d581; font-size: .54em; margin-left: 1px; letter-spacing: -.05em; }
.impact-number > small { font-size: 10px; vertical-align: .3em; margin-left: 12px;
  font-weight: 650; letter-spacing: .095em; color: #a7c59b; }
.impact-secondary .impact-number { margin-top: auto; }
.impact-secondary h3 { margin-top: 17px; max-width: 280px; font-size: clamp(18px,1.6vw,23px);
  line-height: 1.29; letter-spacing: -.035em; font-weight: 450; color: #d2dec9; }
.impact-corner-index { position: absolute; bottom: 26px; right: 27px; font-size: 10px; color: #54684f;
  letter-spacing: .1em; }
.impact-feature { grid-row: span 2; min-height: 515px; padding: 33px 34px 30px;
  background: #bce397; border-color: #cdeaaf; color: #101f12;
  box-shadow: 0 30px 95px rgba(59,88,43,.15); }
.impact-feature::before { content:""; position:absolute; width:450px; height:450px;
  top:-220px; right:-250px; border-radius:50%; border:1px solid rgba(28,68,30,.19);
  box-shadow: 0 0 0 70px rgba(85,130,68,.055),0 0 0 143px rgba(78,117,58,.032); pointer-events:none; }
.impact-feature .impact-card-top,.impact-feature .impact-icon { color: #2a4627; }
.impact-feature-core { margin-top: auto; position: relative; z-index: 1; }
.impact-feature .impact-number { font-size: clamp(115px,12vw,186px); letter-spacing: -.105em; }
.impact-feature .impact-number > span { color: #315b28; }
.impact-feature h3 { font-size: clamp(29px,3.1vw,46px); line-height: 1.1;
  letter-spacing: -.05em; margin-top: 12px; font-weight: 500; }
.impact-feature-foot { margin-top: 38px; padding-top: 23px;
  border-top: 1px solid #40633966; display: flex; align-items: flex-start; gap: 16px; }
.impact-feature-foot p { font-size: 12px; line-height: 1.75; color: #325133; }
.impact-abstract-line { display: block; width: 24px; height: 1px; background: #365e32;
  flex: 0 0 24px; margin-top: 11px; }
.impact-card-corner { position: absolute; right: 25px; bottom: 25px; width: 9px; height: 9px;
  border-top: 1px solid #365e32; border-right: 1px solid #365e32; }
.impact-footer { display:flex; align-items:center; justify-content:space-between; gap:30px;
  margin-top:25px; }
.impact-footer p { color:#a6b6a2; font-size:12px; line-height:1.7; max-width: 820px; }
.impact-footer p > span { color:#bce397; padding-right: 6px; }
.impact-link { font-size:13px; color:#dcf1cc; display:inline-flex; align-items:center; gap:10px;
  min-height:44px; white-space:nowrap; }
.impact-link .icon { width:17px;height:17px;transition:transform .3s var(--ease); }
.impact-link:hover .icon { transform:translateX(5px); }

/* Larger readability on desktops only; preserve the original mobile scale. */
@media (min-width: 1001px) {
  .eyebrow,.tiny-label { font-size:11px; }
  .site-header nav { font-size:14px; gap:clamp(18px,2vw,34px); }
  .site-header .nav-contact { gap:17px; }
  .button,.text-link { font-size:14px; }
  .hero .eyebrow { font-size:11px; }
  .hero-copy p { font-size:18px; }
  .hero-bottom { font-size:11px; }
  .hero-caption { font-size:10px; }
  .section-head > p { font-size:17px; max-width:435px; }
  .intro-bottom > p,.story-step p,.station-copy > p,.vision-content > p:not(.eyebrow),.contact-bottom > p { font-size:16px; }
  .intro-bottom .phase-note,.value-list li,.tech-text p,.features details p,.roadmap p,#contact-text { font-size:15px; }
  .story-step p { max-width:435px; }
  .story-visual figcaption,.phone-wrap figcaption { font-size:11px; }
  .scene-top .tiny-label,.scene-step-label,.tech-text > .tiny-label,.tech-footer .tiny-label,.tech-state,.vision-caption,.station-photo figcaption { font-size:10px; }
  .scene-controls a,.step-number,.tech-count { font-size:12px; }
  .step-tag,.note,.product-note,.footer-top > p,.motion-toggle,.to-top,.footer-bottom { font-size:12px; }
  .value-list li > span,.features summary > span { font-size:11px; }
  .tech-text p { max-width:395px; }
  .footer-note { font-size:11px; max-width:980px; }
  .phone-status { font-size:9px; }
  .phone-small,.phone-card-label,.phone-nav { font-size:8.5px; }
  .phone-row { font-size:10px; }
  .pump > span,.phone-action { font-size:9px; }
}
@media (min-width: 1001px) and (max-width: 1180px) {
  .site-header nav { font-size:12px; gap:14px; }
  .site-header .nav-contact { gap:12px; padding-inline:10px; }
  .impact-head { gap:35px; }
  .impact-heading h2 { font-size:clamp(45px,5.2vw,60px); }
  .impact-card { padding:23px; }
  .impact-feature .impact-number { font-size:115px; }
  .impact-secondary .impact-number { font-size:clamp(62px,6.6vw,80px); }
  .impact-number > small { margin-left:6px; }
}
@media (max-width:1000px) {
  .hero-side-note { display:none; }
  .impact-head { grid-template-columns:1fr; gap:25px; }
  .impact-heading h2 { max-width:700px; font-size:clamp(43px,6.5vw,68px); }
  .impact-aside { display:grid; grid-template-columns:minmax(0,1fr) auto; column-gap:22px; align-items:center; }
  .impact-aside-index { grid-column:1 / -1; }
  .impact-aside > p { margin-top:8px; max-width:440px; }
  .impact-tag { margin-top:0; }
  .impact-grid { grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto; }
  .impact-feature { grid-column:span 2; grid-row:auto; min-height:360px; }
  .impact-feature .impact-number { font-size:clamp(110px,16vw,160px); }
  .impact-feature-core { display:flex; align-items:end; justify-content:space-between; gap:35px; }
  .impact-feature h3 { padding-bottom:10px; }
  .impact-feature-foot { margin-top:20px; }
  .impact-secondary { min-height:245px; }
  .impact-secondary .impact-number { font-size:clamp(70px,9vw,100px); }
}
@media (max-width:800px) {
  .scene-frame { border-radius:14px; }
  .scene-preview-controls { max-width:530px;margin-inline:auto; }
  .impact-section { padding-block:80px; }
  .impact-heading h2 { font-size:clamp(41px,7.5vw,59px); }
  .impact-grid { margin-top:43px; gap:10px; }
  .impact-card { padding:24px; }
  .impact-feature { min-height:340px; }
  .impact-secondary { min-height:220px; }
  .impact-footer { flex-direction:column; align-items:start; gap:8px; }
  .impact-footer p { font-size:11px; }
  .tech-panel { border-radius:12px; }
}
@media (max-width:600px) {
  .impact-heading h2 { font-size:clamp(38px,9vw,53px); }
  .impact-heading h2 br { display:none; }
  .impact-aside { display:block; }
  .impact-aside > p { font-size:14px; margin-top:13px; }
  .impact-tag { margin-top:19px; font-size:9px; padding:10px 12px; }
  .impact-grid { gap:9px; }
  .impact-feature { min-height:315px; padding:24px; }
  .impact-feature-core { display:block; }
  .impact-feature h3 { margin-top:8px; padding:0; font-size:clamp(29px,7vw,39px); }
  .impact-feature .impact-number { font-size:clamp(100px,25vw,138px); }
  .impact-feature-foot { margin-top:21px; padding-top:17px; }
  .impact-secondary { min-height:215px; padding:18px; }
  .impact-secondary .impact-number { font-size:clamp(48px,12vw,71px); margin-top:auto; }
  .impact-number > small { font-size:9px; margin-left:4px; }
  .impact-secondary h3 { font-size:clamp(14px,3.6vw,18px); margin-top:13px; }
  .impact-card-top { font-size:9px; }
  .impact-card .impact-icon { width:22px; height:22px;flex-basis:22px; }
  .impact-corner-index { right:18px; bottom:14px; opacity:.6; }
  .impact-link { white-space:normal; }
}
@media (max-width:370px) {
  .impact-card { border-radius:11px; }
  .impact-secondary { padding:14px; min-height:203px; }
  .impact-secondary .impact-number { font-size:48px; }
  .impact-number > small { display:block;margin:4px 0 0; font-size:8px; }
  .impact-secondary h3 { font-size:14px; }
  .impact-card-top { font-size:8px; }
  .impact-card .impact-icon { width:17px;height:17px;flex-basis:17px; }
  .scene-preview-hint { font-size:9px; }
}
@media (max-height:700px) and (min-width:801px) {
  .impact-grid { grid-template-rows:repeat(2,minmax(215px,auto)); }
  .impact-feature { min-height:445px; }
  .hero-side-note { top:62%; }
}
@media (prefers-reduced-motion:reduce) {
  .impact-card:hover,.circle-button:hover { transform:none; }
  .scene-car,.scene-phone,.scene-receipt,.scene-flow,.scene-scan,.scene-plate,.scene-route { transition:none; }
}
@media print {
  .impact-section { background:#fff;color:#111; }
  .impact-section::before { display:none; }
  .impact-grid { display:grid;grid-template-columns:1fr 1fr; }
  .impact-feature { background:#e5f3da;color:#151d12;grid-column:span 2;min-height:0; }
  .impact-secondary { color:#111;background:#f4f7f1;min-height:0; }
  .impact-secondary h3,.impact-card-top,.impact-footer p,.impact-aside > p { color:#111; }
  .impact-card { break-inside:avoid; }
  .scene-demo-button,.hero-side-note { display:none; }
}

/* Animate entry separately from hover affordances (no hidden content when JS is off). */
.motion .impact-card { transition: opacity .8s var(--ease), transform .8s var(--ease), border-color .35s, box-shadow .35s, background .35s; }
.motion .impact-card:nth-child(2) { transition-delay: 70ms; }
.motion .impact-card:nth-child(3) { transition-delay: 120ms; }
.motion .impact-card:nth-child(4) { transition-delay: 170ms; }
.motion .impact-card:nth-child(5) { transition-delay: 220ms; }
@media (prefers-reduced-motion:reduce) { .motion .impact-card { transition:none; } }


/* V2.4 — ONFUELS assistant. Standalone prefix avoids affecting existing page & animation. */
.of-assistant { position:fixed; z-index:110; right:clamp(15px, 2.1vw, 34px); bottom:max(20px, env(safe-area-inset-bottom)); font: 400 14px/1.45 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#edf3e9; }
.of-assistant * { box-sizing:border-box; }
.of-chat-launcher { display:flex; align-items:center; gap:12px; min-height:64px; padding:9px 16px 9px 10px; border:1px solid #a7e051; border-radius:15px; background:#95d225; color:#13200b; box-shadow:0 14px 42px #0009,0 0 0 5px #90cc1514; text-align:left; transition:transform .22s var(--ease),box-shadow .22s var(--ease), background .22s; }
.of-chat-launcher:hover { transform:translateY(-3px); background:#aff146; box-shadow:0 18px 48px #0009,0 0 0 6px #90cc1526; }
.of-chat-launcher:active { transform:translateY(0); }
.of-launcher-symbol,.of-chat-mark { width:43px; height:43px; flex:0 0 43px; display:grid; place-items:center; border-radius:11px; background:#11250c; color:#baf363; }
.of-launcher-symbol svg,.of-chat-mark svg { width:26px;height:26px; }
.of-launcher-label { display:flex; flex-direction:column; gap:2px; }
.of-launcher-label b { font-size:13px; font-weight:700; letter-spacing:-.015em; }
.of-launcher-label small { color:#254119; font-size:11px; font-weight:500; }
.of-launcher-arrow { width:18px; height:18px; margin-left:16px; }
.of-chat-launcher[aria-expanded="true"] { min-height:50px; padding:6px 13px 6px 8px; background:#1b2919; border-color:#3e5136; color:#f3f6ef; box-shadow:0 10px 26px #0007; }
.of-chat-launcher[aria-expanded="true"] .of-launcher-symbol { width:35px; height:35px; flex-basis:35px; background:#2c3d22; }
.of-chat-launcher[aria-expanded="true"] .of-launcher-symbol svg { width:21px;height:21px; }
.of-chat-launcher[aria-expanded="true"] .of-launcher-label small { color:#b3c1ad; }
.of-chat-launcher[aria-expanded="true"] .of-launcher-arrow { transform:rotate(-90deg); }
.of-chat-panel { width:min(408px,calc(100vw - 30px)); height:min(620px,calc(100dvh - 115px)); max-height:620px; display:flex; flex-direction:column; margin-bottom:12px; border:1px solid #405140; border-radius:20px; background:#101710; box-shadow:0 26px 88px #000d, 0 0 0 1px #ffffff05 inset; overflow:hidden; animation:of-panel-in .34s var(--ease) both; }
.of-chat-panel[hidden] { display:none !important; }
.of-chat-header { display:flex; align-items:center; gap:12px; flex:0 0 auto; background:linear-gradient(132deg,#1b2918 0%,#111811 74%); padding:19px 16px; border-bottom:1px solid #30412d; }
.of-chat-mark { flex-basis:42px;width:42px;height:42px; border:1px solid #374e2e; }
.of-chat-heading { flex:1; min-width:0; }
.of-chat-label { display:flex; align-items:center; gap:7px; font-size:9px; font-weight:700; letter-spacing:.12em; color:#b8d49d; }
.of-chat-indicator { width:6px; height:6px; border-radius:50%; background:#9bd83e; box-shadow:0 0 0 3px #8dcf251c; }
.of-chat-heading h2 { margin:6px 0 0; font-size:15px; font-weight:600; line-height:1.3; letter-spacing:-.025em; color:#f2f6ee; }
.of-chat-head-actions { display:flex; align-items:center; gap:4px; }
.of-chat-head-actions button { width:33px;height:33px; display:grid;place-items:center; border:1px solid transparent;background:transparent;border-radius:9px;color:#b3c4ac; }
.of-chat-head-actions button:hover { background:#2a3b26;color:white;border-color:#3a5232; }
.of-chat-head-actions svg { width:18px; height:18px; }
.of-chat-scroll { flex:1; min-height:0; overflow-y:auto; overflow-x:hidden; scrollbar-color:#4b6040 transparent; overscroll-behavior:contain; padding:20px 15px 16px; }
.of-chat-messages { display:flex; flex-direction:column; gap:15px; }
.of-chat-message { max-width:91%; display:flex; align-items:flex-start; gap:9px; animation:of-bubble .26s ease-out both; }
.of-chat-message[data-role="user"] { align-self:flex-end; justify-content:flex-end; }
.of-chat-message[data-role="assistant"] { align-self:flex-start; }
.of-message-avatar { width:24px;height:24px;flex:0 0 24px;display:grid;place-items:center;border-radius:7px; background:#263723;border:1px solid #3a5131;color:#b4e56f;font-size:11px;font-weight:800;letter-spacing:-.06em; }
.of-message-bubble { white-space:pre-wrap; overflow-wrap:anywhere; background:#1b261b;border:1px solid #32452d; padding:12px 13px;border-radius:5px 14px 14px 14px;color:#e6eee0; font-size:13px; line-height:1.63; }
.of-chat-message[data-role="user"] .of-message-bubble { background:#91ce2c;border-color:#91ce2c;color:#17250e;border-radius:13px 5px 13px 13px;font-weight:550; }
.of-message-foot { font-size:10px; color:#90a48b; margin:4px 0 0 33px; }
.of-chat-suggestions { display:flex;flex-direction:column;gap:7px;margin:22px 0 0 33px; }
.of-chat-suggestions p { color:#829781;font-weight:700;letter-spacing:.115em;font-size:9px;line-height:1.5;margin-bottom:2px; }
.of-chat-suggestions button { display:flex;align-items:center;justify-content:space-between;gap:15px;width:100%;border:1px solid #354733;background:#19231a;border-radius:9px;text-align:left;font-size:12px;padding:10px 13px;min-height:39px;color:#e0e9dc;transition:background .2s,border-color .2s,transform .2s; }
.of-chat-suggestions button:hover { border-color:#8bbd51;background:#22351e;transform:translateX(2px); }
.of-chat-suggestions button span { color:#a4cf72; }
.of-chat-form { flex:0 0 auto; background:#111911;padding:12px 14px 13px;border-top:1px solid #2d3e2b; }
.of-chat-composer { display:flex;align-items:flex-end;gap:9px;padding:6px 6px 6px 14px;border:1px solid #40543a;border-radius:12px;background:#1d291d;transition:border-color .2s,box-shadow .2s; }
.of-chat-composer:focus-within { border-color:#8dc936;box-shadow:0 0 0 3px #8dc93619; }
.of-chat-composer textarea { flex:1;min-width:0;min-height:37px;max-height:100px;border:0;outline:0;resize:none;background:transparent;color:#eef4eb;padding:9px 0 4px;font:400 13px/1.5 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.of-chat-composer textarea::placeholder { color:#97a991; }
.of-chat-composer textarea:focus-visible { outline:0; }
.of-chat-send { flex:0 0 36px;width:36px;height:36px;border:0;border-radius:8px;background:#a3e23c;color:#13200c;display:grid;place-items:center;transition:background .2s,opacity .2s; }
.of-chat-send svg { width:18px;height:18px; }
.of-chat-send:hover:not(:disabled) { background:#c0ff6a; }
.of-chat-send:disabled { background:#3b4b35;color:#8b9b86;opacity:.6;cursor:not-allowed; }
.of-chat-disclaimer { margin:10px 3px 0;text-align:center;color:#8b9a86;line-height:1.45;font-size:10px; }
.of-chat-typing { display:inline-flex;gap:4px;align-items:center;height:20px; }
.of-chat-typing i { display:block;width:5px;height:5px;border-radius:50%;background:#acd972;animation:of-dot 1s ease-in-out infinite alternate; }
.of-chat-typing i:nth-child(2) { animation-delay:.2s; }
.of-chat-typing i:nth-child(3) { animation-delay:.4s; }
@keyframes of-panel-in { from {opacity:0;transform:translateY(16px) scale(.98)} to {opacity:1;transform:translateY(0) scale(1)} }
@keyframes of-bubble { from {opacity:0;transform:translateY(7px)} to {opacity:1;transform:translateY(0)} }
@keyframes of-dot { from{opacity:.3;transform:translateY(3px)} to{opacity:1;transform:translateY(-2px)} }
@media (max-width:600px) { .of-assistant { right:12px;bottom:max(12px, env(safe-area-inset-bottom)); } .of-chat-panel { width:calc(100vw - 24px);height:min(680px,calc(100dvh - 97px));max-height:none; border-radius:16px; margin-bottom:9px; } .of-chat-header { padding:15px 12px; } .of-chat-launcher { min-height:56px; } .of-chat-scroll { padding:16px 12px; } .of-chat-suggestions { margin-left:26px; } }
@media (max-width:370px) { .of-chat-panel { height:calc(100dvh - 88px); } .of-chat-heading h2 { font-size:13px; } .of-chat-mark { width:36px;height:36px;flex-basis:36px; } .of-chat-header { gap:7px; } .of-launcher-arrow { margin-left:2px; } }
@media (max-height:560px) { .of-chat-panel { height:calc(100dvh - 86px); } }
@media (prefers-reduced-motion:reduce) { .of-chat-panel,.of-chat-message,.of-chat-typing i { animation:none !important; } .of-chat-launcher:hover,.of-chat-suggestions button:hover { transform:none; } }
@media print { .of-assistant {display:none !important;} }