:root {
  --ink: #142225;
  --muted: #626969;
  --paper: #fafaf8;
  --line: #dddfda;
  --night: #101d25;
  --serif: "Instrument Serif", Georgia, serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 30px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
body, button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
button, a { touch-action: manipulation; }
button:focus-visible, a:focus-visible, [tabindex]:focus-visible { outline: 3px solid #769cac; outline-offset: 5px; }
::selection { color: #10212b; background: #d4e3da; }
h1, h2, h3, p { margin: 0; }
h1, h2 { font-family: var(--serif); font-weight: 400; }
h2 { font-size: clamp(46px, 4.6vw, 68px); line-height: 1.04; letter-spacing: -.025em; }
h3 { font-size: 19px; font-weight: 500; line-height: 1.4; letter-spacing: -.035em; }
.wrap { width: min(100% - 112px, 1248px); margin-inline: auto; }
.section { padding-block: 110px; }
.paper-section { background: var(--paper); }
.eyebrow { font-size: 11px; line-height: 1.5; letter-spacing: .12em; font-weight: 500; }
.index-number { margin-right: 14px; color: #7b827b; }
.icon { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex: 0 0 auto; }
.svg-library { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
[hidden] { display: none !important; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 20; padding: 10px 20px; background: white; color: var(--ink); transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 26px; min-height: 50px; border: 1px solid transparent; border-radius: 9px; padding: 13px 21px; font-size: 13px; line-height: 1.4; font-weight: 500; transition: background .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.button-white { background: #fff; color: #152c36; }
.button-white:hover { background: #e9efeb; }
.button-glass { border-color: #ffffff70; background: #132c3c20; color: white; backdrop-filter: blur(8px); }
.button-glass:hover { background: #ffffff20; }
.button-small { min-height: 42px; padding: 10px 15px; gap: 24px; font-size: 12px; }
.header { position: absolute; inset: 0 0 auto; z-index: 5; height: 99px; display: flex; align-items: center; justify-content: space-between; color: white; border-bottom: 1px solid #ffffff25; }
.brand { display: inline-flex; align-items: center; gap: 15px; flex-shrink: 0; }
.wordmark { font-family: var(--serif); font-size: 55px; letter-spacing: -.045em; line-height: .9; }
.brand-dot { color: #adc9c4; }
.brand-name { border-left: 1px solid #ffffff40; padding-left: 15px; font-size: 10px; line-height: 1.45; letter-spacing: .015em; }
.desktop-nav { display: flex; gap: 34px; font-size: 12px; margin-left: 32px; }
.desktop-nav a { position: relative; padding-block: 12px; }
.desktop-nav a::after { content: ""; position: absolute; bottom: 6px; left: 0; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.desktop-nav a:hover::after { transform: scaleX(1); }
.menu-toggle { display: none; }
.mobile-nav { position: absolute; z-index: 6; top: 81px; left: 0; right: 0; color: white; padding: 20px 24px; background: #142b3bf5; backdrop-filter: blur(15px); }
.mobile-nav a { display: block; padding: 12px 0; }
.hero-shell { position: relative; color: white; background: #152f54; isolation: isolate; }
.hero-shell::before { content: ""; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(180deg, rgba(5,18,40,.44) 0%, rgba(5,18,40,.20) 30%, rgba(5,18,40,.19) 55%, rgba(6,7,9,.64) 80%, #060709 100%), url("assets/alpine-oil-landscape.webp"); background-size: cover; background-position: center top; }
.hero { min-height: 100vh; min-height: 100svh; padding-top: 143px; padding-bottom: 100px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.hero-eyebrow { display: flex; align-items: center; justify-content: center; gap: 11px; font-size: 12px; margin-bottom: 24px; text-shadow: 0 1px 10px #102a3c; }
.status-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: #b9d6bd; flex-shrink: 0; }
.hero h1 { font-size: 6.4rem; line-height: .93; letter-spacing: -.038em; text-shadow: 0 3px 30px rgba(5,17,40,.28); }
.hero-subtitle { font-size: 20px; letter-spacing: -.025em; margin-top: 31px; }
.hero-copy { max-width: 880px; font-size: 18px; line-height: 1.6; color: #f0f3f9; margin-top: 13px; text-shadow: 0 2px 12px rgba(5,17,40,.55); }
.hero-actions { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 33px; }
.hero-actions .button-glass { background: #06152e70; border-color: #ffffff65; }
.hero-actions .button-glass:hover { background: #102b4bbf; }
.section-heading { display: grid; grid-template-columns: 1fr 2.1fr; gap: 40px; }
.section-label { padding-top: 10px; color: #58635e; }
.intro-copy { color: var(--muted); max-width: 610px; font-size: 16px; line-height: 1.85; margin-top: 28px; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin-top: 70px; }
.principles article { border-top: 1px solid var(--line); padding-top: 23px; }
.principle-label { font-size: 9px; letter-spacing: .105em; color: #68736c; }
.principles h3 { font-family: var(--serif); font-size: 32px; letter-spacing: -.015em; margin-top: 14px; }
.principles p { font-size: 14px; color: var(--muted); line-height: 1.85; margin-top: 13px; }
.index-flow { display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-top: 63px; padding: 30px 40px; background: #f0f1ec; border-radius: 4px; }
.index-flow > span:not(.flow-line) { display: flex; align-items: center; gap: 12px; font-size: 13px; white-space: nowrap; }
.flow-line { height: 1px; flex: 1; background: #c8d0c8; position: relative; }
.flow-line::after { content: ""; position: absolute; width: 6px; height: 6px; border-right: 1px solid #a5b0a6; border-top: 1px solid #a5b0a6; transform: rotate(45deg); right: 0; top: -3px; }
.index-flow > span.flow-asi { font-family: var(--serif); font-size: 37px; gap: 0; line-height: 1; }
.flow-asi > span:first-child { color: #637b68; }
.flow-caption { font-family: var(--sans); font-size: 10px; margin-left: 13px; color: #56645a; }
.retrieval-section { padding-bottom: 110px; }
.retrieval-layout { padding-top: 93px; border-top: 1px solid var(--line); display: grid; grid-template-columns: .84fr 1.16fr; gap: 95px; align-items: center; }
.retrieval-copy h2 { margin-top: 23px; }
.retrieval-copy > p:not(.eyebrow) { font-size: 14px; line-height: 1.85; color: var(--muted); margin-top: 24px; max-width: 390px; }
.retrieval-copy > p + p:not(.eyebrow) { margin-top: 15px; }
.field-list { margin: 29px 0 0; }
.field-list > div { display: grid; grid-template-columns: 100px 1fr; gap: 12px; padding-block: 12px; border-top: 1px solid var(--line); }
.field-list dt { font-family: monospace; font-size: 12px; }
.field-list dt span { color: #6b7570; }
.field-list dd { margin: 0; font-size: 11px; color: var(--muted); align-self: center; }
.response-demo { min-width: 0; background: #13252e; color: #f4f5ef; border-radius: 13px; box-shadow: 0 18px 40px #10252b14; overflow: hidden; }
.demo-topline { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 26px 26px 23px; }
.demo-topline > span:first-child { display: flex; align-items: center; gap: 8px; font-size: 9px; letter-spacing: .12em; }
.demo-topline .status-dot { width: 5px; height: 5px; }
.demo-example { color: #b0bdc1; font-size: 10px; }
.query { margin: 0 24px; display: flex; align-items: center; gap: 12px; padding: 16px; border: 1px solid #ffffff25; border-radius: 7px; font-size: 12px; background: #ffffff04; }
.query .icon { color: #a9bdbe; width: 17px; height: 17px; }
.query-lang { color: #abc0c2; font-size: 9px; margin-left: auto; }
.response-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 25px 25px 0; border-bottom: 1px solid #ffffff1c; }
.view-tabs { display: flex; gap: 25px; }
.view-tabs button { border: none; border-bottom: 2px solid transparent; padding: 0 0 12px; background: transparent; color: #a8b8bf; font-size: 11px; }
.view-tabs button[aria-selected="true"] { border-bottom-color: #c2d4c4; color: white; }
.copy-button { display: flex; align-items: center; gap: 7px; border: none; padding: 4px 0 13px; font-size: 10px; color: #bbc9cc; background: transparent; }
.copy-button:hover { color: #fff; }
.copy-button .icon { width: 13px; height: 13px; }
.response-content { min-height: 315px; }
.response-panel { padding: 27px; }
.result-number { font-size: 9px; letter-spacing: .13em; color: #97b1b6; }
.readable-panel h3 { margin-top: 19px; font-family: var(--serif); font-size: 29px; line-height: 1.15; letter-spacing: -.01em; }
.result-url { color: #a6cdbd; font-size: 11px; margin-top: 10px; overflow-wrap: anywhere; }
.result-snippet { font-size: 13px; line-height: 1.9; color: #c0cdd0; margin-top: 21px; }
.result-meta { display: flex; align-items: center; gap: 13px; margin-top: 24px; color: #aec0c5; font-size: 10px; }
.result-meta > span + span::before { content: "·"; margin-right: 13px; }
.json-panel { padding: 23px; }
.json-panel pre { margin: 0; font-size: 11px; line-height: 1.8; white-space: pre-wrap; overflow-wrap: anywhere; tab-size: 2; }
.code-key { color: #a9c5d7; }
.code-value { color: #c1d5b3; }
.demo-footer { border-top: 1px solid #ffffff1c; display: flex; align-items: center; justify-content: space-between; padding: 17px 26px; font-size: 10px; color: #adbec2; }
.demo-footer > span:last-child { font-family: monospace; font-size: 16px; }
.roadmap-section { background: var(--night); color: #f5f5ee; }
.roadmap-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.roadmap-intro .eyebrow { color: #bdcbc9; }
.roadmap-intro .index-number { color: #99aaa8; }
.roadmap-intro h2 { margin-top: 28px; font-size: clamp(45px, 4.2vw, 61px); }
.roadmap-intro > p:not(.eyebrow) { font-size: 14px; line-height: 1.9; color: #b9c4c7; max-width: 355px; margin-top: 27px; }
.roadmap-note { display: flex; align-items: center; gap: 9px; margin-top: 33px; font-size: 10px; color: #b6c7c3; }
.roadmap-list article { padding: 28px 0; border-top: 1px solid #ffffff26; }
.roadmap-list article:first-child { padding-top: 19px; }
.roadmap-list article:last-child { padding-bottom: 0; }
.roadmap-item-heading { display: flex; align-items: center; gap: 19px; }
.roadmap-number { font-family: var(--serif); font-size: 24px; color: #8ba2a7; }
.roadmap-item-heading h3 { font-size: 17px; letter-spacing: -.02em; }
.planned { margin-left: auto; border: 1px solid #ffffff30; border-radius: 4px; padding: 2px 8px; color: #bdcec7; font-size: 9px; }
.roadmap-list article > p { margin-top: 12px; margin-left: 42px; max-width: 410px; color: #b8c5c7; font-size: 13px; line-height: 1.85; }
.crawl-principles { display: grid; grid-template-columns: 1fr 1fr; gap: 55px; margin-top: 54px; border-top: 1px solid var(--line); padding-top: 33px; }
.crawl-principles article { display: flex; gap: 17px; }
.crawl-principles .icon { color: #637e69; width: 19px; margin-top: 1px; }
.crawl-principles h3 { font-size: 16px; letter-spacing: -.02em; }
.crawl-principles p { font-size: 14px; color: var(--muted); line-height: 1.85; margin-top: 11px; max-width: 445px; }
.text-link { display: inline-flex; align-items: center; gap: 15px; font-size: 12px; border-bottom: 1px solid #9caaa0; padding-bottom: 5px; }
.text-link:hover { border-color: var(--ink); }
.site-owner-link { margin-top: 37px; margin-left: 36px; }
.site-owner-link .icon { width: 16px; height: 16px; }
.contact-section { padding: 92px 0; color: white; background: linear-gradient(90deg, #091c34b8, #0b263c55), url("assets/alpine-lake-oil.webp") center 51% / cover; }
.contact-layout { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.contact-layout h2 { margin-top: 24px; font-size: clamp(50px, 5.4vw, 77px); }
.contact-layout p:not(.eyebrow) { font-size: 14px; line-height: 1.9; margin-top: 23px; color: #e3edf2; }
.contact-layout > .button { margin-right: 30px; flex-shrink: 0; }
.footer { color: #e4ebe8; background: #0c171e; padding: 48px 0 28px; }
.footer-main { display: flex; align-items: center; gap: 40px; padding-bottom: 40px; }
.footer-main .wordmark { font-size: 48px; }
.footer-main .brand-name { font-size: 9px; }
.footer-main > p { color: #9eafaf; font-size: 11px; }
.footer-main nav { display: flex; gap: 28px; font-size: 11px; margin-left: auto; }
.footer a:hover { color: white; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid #ffffff1c; padding-top: 23px; color: #99abab; font-size: 9px; }
.footer-bottom a { color: #c4d1cd; }
@media (min-width: 1800px) { .hero-shell::before { background-position: center 56%; } }
@media (max-width: 1100px) {
  .wrap { width: calc(100% - 72px); }
  .hero h1 { font-size: 5.6rem; }
  .retrieval-layout { gap: 50px; }
  .principles { gap: 30px; }
  .roadmap-layout { gap: 55px; }
  .field-list > div { grid-template-columns: 1fr; gap: 3px; }
  .demo-topline { flex-wrap: wrap; }
  .footer-main { gap: 25px; }
}
@media (max-width: 767px) {
  .wrap { width: calc(100% - 40px); }
  .section { padding-block: 74px; }
  .header { height: 81px; }
  .wordmark { font-size: 48px; }
  .brand-name { font-size: 9px; }
  .desktop-nav, .header-contact { display: none; }
  .menu-toggle { display: flex; flex-direction: column; justify-content: center; gap: 6px; width: 44px; height: 44px; padding: 12px; background: #10253a25; border: 1px solid #ffffff60; border-radius: 7px; }
  .menu-toggle span { height: 1px; width: 18px; background: #fff; transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .hero-shell::before { background-position: 62% top; }
  .hero { padding-top: 124px; padding-bottom: 80px; }
  .hero-eyebrow { font-size: 10px; letter-spacing: .08em; margin-bottom: 23px; }
  .hero h1 { font-size: clamp(2.4rem, 9.4vw, 3.65rem); }
  .hero-subtitle { font-size: 17px; margin-top: 28px; }
  .hero-copy { font-size: 16px; max-width: 440px; margin-top: 15px; }
  .desktop-break { display: none; }
  .hero-actions { gap: 10px; margin-top: 26px; }
  .button { padding: 13px 17px; gap: 18px; font-size: 12px; }
  .section-heading { grid-template-columns: 1fr; gap: 25px; }
  .section-label { padding-top: 0; }
  h2 { font-size: 48px; }
  .intro-copy { font-size: 15px; margin-top: 22px; }
  .principles { grid-template-columns: 1fr; gap: 29px; margin-top: 40px; }
  .principles article { padding-top: 20px; }
  .principles h3 { font-size: 31px; margin-top: 11px; }
  .principles p { max-width: 530px; margin-top: 9px; }
  .index-flow { margin-top: 40px; padding: 23px 17px; gap: 15px; }
  .index-flow > span:not(.flow-line) { font-size: 10px; gap: 6px; }
  .index-flow .icon { width: 17px; height: 17px; }
  .index-flow > span.flow-asi { font-size: 33px; }
  .flow-caption { display: none; }
  .retrieval-section { padding-bottom: 74px; }
  .retrieval-layout { grid-template-columns: 1fr; gap: 40px; padding-top: 65px; }
  .retrieval-copy > p:not(.eyebrow) { max-width: 520px; }
  .field-list > div { grid-template-columns: 100px 1fr; gap: 12px; padding-block: 13px; }
  .response-content { min-height: 320px; }
  .demo-topline { padding: 23px 20px 20px; }
  .demo-topline > span:first-child { font-size: 8px; }
  .demo-example { font-size: 9px; }
  .query { margin-inline: 18px; font-size: 11px; padding: 14px 12px; gap: 8px; }
  .response-toolbar { padding-inline: 20px; }
  .response-panel { padding: 24px 20px; }
  .readable-panel h3 { font-size: 29px; }
  .result-snippet { font-size: 12px; }
  .demo-footer { padding-inline: 20px; font-size: 9px; }
  .roadmap-layout { grid-template-columns: 1fr; gap: 44px; }
  .roadmap-intro h2 { font-size: 48px; margin-top: 24px; }
  .roadmap-intro > p:not(.eyebrow) { max-width: 480px; }
  .roadmap-item-heading { gap: 15px; }
  .roadmap-item-heading h3 { font-size: 16px; }
  .roadmap-list article > p { margin-left: 38px; }
  .crawl-principles { grid-template-columns: 1fr; gap: 28px; margin-top: 35px; padding-top: 28px; }
  .site-owner-link { font-size: 11px; margin-left: 0; gap: 9px; }
  .contact-section { padding: 73px 0; background-position: 60% center; }
  .contact-layout { flex-direction: column; align-items: flex-start; gap: 30px; }
  .contact-layout h2 { font-size: 55px; }
  .contact-layout > .button { margin: 0; }
  .footer { padding-top: 35px; }
  .footer-main { flex-wrap: wrap; gap: 22px; padding-bottom: 30px; }
  .footer-main > p { margin-left: auto; font-size: 10px; max-width: 115px; }
  .footer-main nav { width: 100%; margin-left: 0; margin-top: 8px; gap: 28px; }
  .footer-main nav a { padding-block: 6px; }
  .footer-bottom { flex-wrap: wrap; gap: 12px 20px; }
  .footer-bottom > span:nth-child(2) { order: 3; width: 100%; }
  .footer-bottom > a { margin-left: auto; }
}
@media (max-width: 360px) {
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { gap: 10px; }
  h2, .roadmap-intro h2 { font-size: 43px; }
  .index-flow { gap: 10px; padding-inline: 12px; }
  .roadmap-item-heading h3 { font-size: 14px; }
  .site-owner-link { font-size: 10px; }
  .footer-main > p { max-width: 95px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }