:root {
  --ink: #212529;
  --muted: #5f6b76;
  --paper: #ffffff;
  --canvas: #f6f8fa;
  --wash: #eef4fb;
  --line: #d9e2ec;
  --navy: #174f8d;
  --navy-2: #1b6fc8;
  --teal: #0071bc;
  --teal-dark: #005fa0;
  --mint: #d8ebf8;
  --orange: #f5a623;
  --danger: #dc3545;
  --shadow: 0 8px 32px rgba(0, 74, 137, .12), 0 2px 8px rgba(0, 0, 0, .05);
  --radius: 12px;
  font-family: "Open Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; line-height: 1.58; background: var(--paper); }
a { color: inherit; }
button, input { font: inherit; }
code, pre { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
code { overflow-wrap: anywhere; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: #fff; color: var(--ink); padding: .7rem 1rem; border-radius: 6px; }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 50; background: linear-gradient(100deg, rgba(27,111,200,.98), rgba(47,141,224,.98)); color: #fff; backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,.18); box-shadow: 0 2px 12px rgba(0,58,112,.16); }
.nav { width: min(1240px, calc(100% - 40px)); min-height: 64px; margin: 0 auto; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.brand img { width: 106px; height: auto; }
.brand small { padding-left: 11px; border-left: 1px solid rgba(255,255,255,.38); font-weight: 600; letter-spacing: .015em; white-space: nowrap; }
.nav__links { display: flex; gap: 24px; }
.nav__links a { color: rgba(255,255,255,.88); text-decoration: none; font-size: .9rem; font-weight: 600; }
.nav__links a:hover, .nav__links a:focus-visible { color: #fff; }
.nav__release { display: flex; align-items: center; gap: 8px; color: #ddf0eb; text-decoration: none; font: 600 .78rem/1.2 "SFMono-Regular", Consolas, monospace; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #7ee2a8; box-shadow: 0 0 0 5px rgba(126,226,168,.17); }

.hero { min-height: 570px; color: #fff; background: radial-gradient(circle at 84% 5%, rgba(255,255,255,.17), transparent 28%), linear-gradient(135deg, #155da9 0%, #1b6fc8 52%, #2f8de0 100%); display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(330px, .8fr); gap: 68px; align-items: center; padding: 82px max(28px, calc((100vw - 1184px)/2)) 100px; }
.hero__copy { max-width: 790px; }
.eyebrow { margin: 0 0 10px; color: var(--teal); text-transform: uppercase; letter-spacing: .14em; font-size: .75rem; font-weight: 850; }
.eyebrow.light { color: #d8ebf8; }
h1, h2 { font-family: "Open Sans", system-ui, -apple-system, sans-serif; letter-spacing: -.035em; }
.hero h1 { max-width: 800px; margin: 12px 0 24px; font-size: clamp(3rem, 5.4vw, 5.15rem); line-height: 1.02; font-weight: 700; }
.lede { max-width: 740px; margin: 0; color: rgba(255,255,255,.88); font-size: 1.17rem; }
.lede code { color: #fff; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 34px 0 0; }
.button { display: inline-block; border-radius: 6px; padding: 12px 19px; text-decoration: none; font-weight: 700; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.button.primary { background: #fff; color: #005fa0; box-shadow: 0 5px 18px rgba(0,43,85,.18); }
.button.primary:hover { background: #f5faff; transform: translateY(-1px); }
.button.secondary { border: 1px solid rgba(255,255,255,.45); color: #fff; }
.release-status { margin-top: 38px; color: rgba(255,255,255,.72); font: .8rem "SFMono-Regular", Consolas, monospace; }
.hero__panel { padding: 28px; border: 1px solid rgba(255,255,255,.25); border-radius: 12px; background: rgba(8,66,124,.22); box-shadow: 0 18px 55px rgba(0,54,105,.22); backdrop-filter: blur(10px); }
.panel-kicker { margin: 0 0 9px; color: #fff; font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.capability-row { display: flex; align-items: flex-start; gap: 14px; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.capability-row:last-child { border-bottom: 0; padding-bottom: 0; }
.capability-row > span { display: grid; place-items: center; flex: 0 0 34px; height: 34px; border-radius: 8px; color: #fff; background: rgba(255,255,255,.14); font-weight: 800; }
.capability-row div { display: flex; flex-direction: column; gap: 3px; }
.capability-row strong { font-size: .98rem; }
.capability-row small { color: rgba(255,255,255,.74); line-height: 1.45; }

.value-strip { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1184px; margin: -32px auto 0; position: relative; z-index: 2; background: #fff; box-shadow: var(--shadow); border: 1px solid #d4e4f2; border-radius: 12px; }
.value-strip div { display: flex; flex-direction: column; padding: 22px 24px; border-right: 1px solid var(--line); }
.value-strip div:last-child { border: 0; }
.value-strip strong { color: #174f8d; font-size: 1rem; }
.value-strip span { color: var(--muted); font-size: .84rem; }

.section { padding: 78px max(28px, calc((100vw - 1184px)/2)); background: var(--paper); }
.section--tinted { background: var(--wash); }
.section--dark { color: #f5faff; background: linear-gradient(135deg, #134d88, #1b6fc8); }
.section-heading { max-width: 820px; margin-bottom: 36px; }
.section-heading h2 { margin: 7px 0 14px; font-size: clamp(2.15rem, 4vw, 3.45rem); line-height: 1.08; font-weight: 700; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.08rem; }
.section--dark .section-heading > p:last-child { color: rgba(255,255,255,.78); }
.centered-heading { margin-right: auto; margin-left: auto; text-align: center; }

.section--features { padding-top: 92px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-grid article { padding: 26px; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: 0 2px 12px rgba(0,113,188,.07); }
.feature-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 8px; color: #0071bc; background: #e7f3fc; font: 800 .72rem var(--font-family-mono, monospace); }
.feature-grid h3 { margin: 18px 0 8px; font-size: 1.18rem; }
.feature-grid p { margin: 0; color: var(--muted); }

.section--guide-hub { background: #f6f8fa; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.guide-hub-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.guide-hub-grid a { display: flex; flex-direction: column; min-height: 175px; padding: 24px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); text-decoration: none; box-shadow: 0 2px 10px rgba(0,113,188,.05); transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease; }
.guide-hub-grid a:hover { border-color: #85bce4; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,113,188,.1); }
.guide-hub-grid span { color: #0071bc; font: 800 .76rem monospace; }
.guide-hub-grid strong { margin: 20px 0 6px; font-size: 1.08rem; }
.guide-hub-grid small { color: var(--muted); font-size: .86rem; line-height: 1.5; }
.split-heading { display: grid; grid-template-columns: 1fr auto; gap: 60px; max-width: none; }
.release-facts { min-width: 280px; margin: 3px 0 0; border-top: 1px solid var(--line); }
.release-facts div { display: flex; justify-content: space-between; gap: 30px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.release-facts dt { color: var(--muted); }
.release-facts dd { margin: 0; font-weight: 750; font-family: monospace; }

.platform-picker { display: flex; align-items: end; gap: 28px; margin-bottom: 28px; padding: 18px 20px; border: 1px solid var(--line); background: var(--canvas); border-radius: 10px; }
.platform-picker fieldset { border: 0; padding: 0; margin: 0; }
.platform-picker legend { margin-bottom: 8px; color: var(--muted); font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.segmented { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.segmented button, .guide-platform button { border: 0; padding: 8px 14px; border-radius: 5px; background: transparent; color: var(--ink); font-weight: 750; cursor: pointer; }
.segmented button.active, .guide-platform button.active { color: #fff; background: var(--navy-2); }
.target-summary { margin: 0 0 9px auto; color: var(--muted); font-weight: 750; }
.download-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.download-card { display: flex; flex-direction: column; min-height: 350px; padding: 24px; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: 0 2px 12px rgba(0,113,188,.07); }
.download-card.featured { border-top: 4px solid var(--teal); padding-top: 23px; }
.card-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.component-badge { color: var(--teal); text-transform: uppercase; letter-spacing: .09em; font-size: .7rem; font-weight: 850; }
.requirement-badge { padding: 3px 8px; border-radius: 20px; background: #e7f3fc; color: #35627f; font-size: .7rem; font-weight: 750; }
.download-card h3 { margin: 15px 0 8px; font-size: 1.55rem; }
.download-card > p { color: var(--muted); }
.artifact-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: auto; padding-top: 20px; color: var(--muted); font: .78rem monospace; }
.download-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.download-button { display: inline-block; padding: 10px 14px; border-radius: 6px; background: var(--teal); color: #fff; text-decoration: none; font-weight: 800; }
.download-button:hover { background: var(--teal-dark); }
.signature-link { align-self: center; color: var(--teal-dark); font-size: .82rem; font-weight: 750; }
.digest-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: 15px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--canvas); }
.digest-row code { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: .7rem; }
.copy-button { border: 0; padding: 2px 7px; border-radius: 4px; background: #d8ebf8; color: #174f8d; font-size: .7rem; font-weight: 800; cursor: pointer; }
.installer-panel { display: grid; grid-template-columns: 1fr 1.2fr; gap: 45px; align-items: center; margin-top: 28px; padding: 28px; border-radius: 10px; background: linear-gradient(120deg, #174f8d, #1b6fc8); color: #fff; }
.installer-panel h3 { margin: 5px 0; font-size: 1.5rem; }
.installer-panel p { margin-bottom: 0; color: rgba(255,255,255,.76); }
.installer-links { display: grid; gap: 9px; }
.installer-links a { display: flex; justify-content: space-between; gap: 15px; padding: 11px 14px; border: 1px solid rgba(255,255,255,.18); border-radius: 6px; color: #fff; text-decoration: none; }
.installer-links a::after { content: "Download"; color: #d8ebf8; font-size: .78rem; font-weight: 800; }
.verification-note { display: flex; justify-content: space-between; gap: 35px; align-items: center; margin-top: 25px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.verification-note p { margin: 4px 0 0; color: var(--muted); }
.verification-note > a { flex: 0 0 auto; color: var(--teal-dark); font-weight: 800; }

.guide-platform { display: flex; align-items: center; gap: 8px; max-width: 1184px; margin: -15px 0 35px; }
.guide-platform > span { margin-right: 5px; color: var(--muted); font-weight: 700; }
.guide-platform button { border: 1px solid var(--line); background: #fff; }
.guide-layout { display: grid; grid-template-columns: 190px minmax(0,1fr); gap: 55px; align-items: start; }
.guide-index { position: sticky; top: 105px; display: grid; border-left: 2px solid var(--line); }
.guide-index a { padding: 8px 0 8px 16px; color: var(--muted); text-decoration: none; font-size: .88rem; font-weight: 700; }
.guide-index a:hover { color: var(--teal-dark); }
.guide-content { display: grid; gap: 20px; }
.guide-step { display: grid; grid-template-columns: 58px 1fr; gap: 20px; padding: 28px; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: 0 2px 10px rgba(0,113,188,.045); }
.step-number, .guide-grid article > span { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; color: var(--teal-dark); background: var(--wash); font: 800 .8rem monospace; }
.guide-step h3, .guide-grid h3 { margin: 2px 0 10px; font-size: 1.4rem; }
.check-list { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 24px; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 900; }
pre { position: relative; margin: 14px 0; padding: 22px; border-radius: 8px; overflow: auto; background: #0b292e; color: #dff4ef; line-height: 1.55; font-size: .84rem; box-shadow: inset 0 0 0 1px rgba(255,255,255,.06); }
pre .copy-button { position: absolute; top: 10px; right: 10px; }
.security-copy { padding-left: 15px; border-left: 3px solid var(--orange); color: var(--muted); }
.guide-download-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 4px; }
.guide-download-links a { padding: 8px 11px; border: 1px solid #b8d8ee; border-radius: 6px; color: #005fa0; background: #f4faff; text-decoration: none; font-size: .8rem; font-weight: 700; }
.guide-download-links a:hover { border-color: #6aaddb; background: #e7f3fc; }
.callout { margin-top: 18px; padding: 17px 19px; border-left: 4px solid var(--teal); background: var(--wash); }
.callout.warning { border-color: var(--orange); background: #fff4e4; }
[data-guide][hidden] { display: none !important; }

.workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: workflow; }
.workflow article { padding: 24px; border: 1px solid var(--line); border-top: 3px solid var(--teal); border-radius: 8px; background: #fff; }
.workflow span { color: var(--teal); font: 800 1.6rem Georgia,serif; }
.workflow h3 { margin: 12px 0 5px; }
.workflow p { margin: 0; color: var(--muted); }
.command-pair { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 25px; }
.command-pair.equal { grid-template-columns: 1fr 1fr; }
.command-pair article { min-width: 0; }
.command-label { margin: 0; color: var(--muted); text-transform: uppercase; letter-spacing: .09em; font-size: .72rem; font-weight: 850; }

.provider-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.provider-cards article { padding: 27px; border: 1px solid rgba(255,255,255,.22); border-radius: 10px; background: rgba(255,255,255,.08); }
.provider-cards h3 { margin: 22px 0 8px; font-size: 1.45rem; }
.provider-cards p { color: rgba(255,255,255,.77); }
.provider-cards a { color: #fff; font-weight: 800; }
.support { display: inline-block; padding: 4px 9px; border-radius: 100px; font-size: .68rem; font-weight: 850; text-transform: uppercase; letter-spacing: .06em; }
.support.supported { color: #075a50; background: #c6efe6; }
.support.planned { color: #754b13; background: #ffe4b9; }
.guide-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.guide-grid article { min-width: 0; padding: 26px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.guide-disclosure { overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: #fff; box-shadow: 0 2px 12px rgba(0,113,188,.055); }
.guide-disclosure > summary { position: relative; display: flex; flex-direction: column; gap: 4px; padding: 22px 24px; color: #174f8d; background: #f8fbfe; cursor: pointer; list-style: none; }
.guide-disclosure > summary::-webkit-details-marker { display: none; }
.guide-disclosure > summary::after { content: "+"; position: absolute; align-self: flex-end; margin-top: 5px; font-size: 1.4rem; font-weight: 400; }
.guide-disclosure[open] > summary::after { content: "−"; }
.guide-disclosure > summary span { font-size: 1rem; font-weight: 750; }
.guide-disclosure > summary small { max-width: calc(100% - 45px); color: var(--muted); font-size: .84rem; font-weight: 400; }
.guide-disclosure__body { padding: 24px; border-top: 1px solid var(--line); }
.config-example { margin-top: 22px; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--radius); }
.config-example summary { cursor: pointer; font-weight: 800; }
.comparison-table { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); background: var(--canvas); font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; }
tr:last-child td { border-bottom: 0; }

.operations-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.operations-grid > article { min-width: 0; padding: 26px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.operations-grid h3 { margin-top: 0; }
.operations-grid li { margin-bottom: 6px; }
.reference-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 26px; }
.reference-grid article { padding: 23px; border-top: 3px solid var(--teal); background: rgba(255,255,255,.65); }
.reference-grid h3 { margin-top: 0; }
.reference-grid dl { margin: 0; }
.reference-grid dl div { padding: 8px 0; border-bottom: 1px solid var(--line); }
.reference-grid dt { font-weight: 800; }
.reference-grid dd { margin: 2px 0 0; color: var(--muted); }
.reference-grid ul { padding-left: 20px; }
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.faq details { padding: 18px 20px; border: 1px solid var(--line); border-radius: 8px; }
.faq summary { cursor: pointer; font-weight: 800; }
.faq p { margin-bottom: 0; color: var(--muted); }

footer { display: grid; grid-template-columns: 2fr repeat(3,1fr); gap: 55px; padding: 56px max(28px, calc((100vw - 1184px)/2)); color: #d8ebf8; background: #123f70; }
.footer-brand { color: #fff; }
footer p { color: rgba(255,255,255,.66); }
footer > div:not(:first-child) { display: flex; flex-direction: column; gap: 7px; }
footer strong { margin-bottom: 6px; color: #fff; }
footer > div > a:not(.brand) { color: rgba(255,255,255,.72); text-decoration: none; font-size: .9rem; }
footer > div > a:hover { color: #fff; }

@media (max-width: 1040px) {
  .nav__links { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero__panel { max-width: 720px; }
  .download-grid, .provider-cards, .reference-grid, .feature-grid { grid-template-columns: 1fr 1fr; }
  .guide-hub-grid { grid-template-columns: 1fr 1fr; }
  .workflow { grid-template-columns: 1fr 1fr; }
  .value-strip { width: calc(100% - 40px); grid-template-columns: 1fr 1fr; }
  .value-strip div:nth-child(2) { border-right: 0; }
  .value-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  footer { grid-template-columns: 2fr 1fr 1fr; }
  footer > div:last-child { grid-column: 2; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 72px; }
  .nav { width: calc(100% - 28px); }
  .nav__release { display: none; }
  .hero { padding-top: 72px; gap: 45px; }
  .hero h1 { font-size: 3.5rem; }
  .hero__actions { flex-direction: column; align-items: stretch; text-align: center; }
  .value-strip { grid-template-columns: 1fr; margin-top: 0; width: 100%; border-radius: 0; border-left: 0; border-right: 0; }
  .value-strip div { border-right: 0; border-bottom: 1px solid var(--line); }
  .section { padding-top: 72px; padding-bottom: 72px; }
  .split-heading, .installer-panel, .guide-layout { grid-template-columns: 1fr; gap: 28px; }
  .release-facts { min-width: 0; }
  .platform-picker { align-items: stretch; flex-direction: column; gap: 16px; }
  .target-summary { margin: 0; }
  .download-grid, .provider-cards, .guide-grid, .operations-grid, .reference-grid, .faq, .command-pair.equal, .feature-grid, .guide-hub-grid { grid-template-columns: 1fr; }
  .guide-index { display: none; }
  .guide-step { grid-template-columns: 1fr; padding: 22px; }
  .check-list { grid-template-columns: 1fr; }
  .workflow { grid-template-columns: 1fr; }
  .verification-note { align-items: flex-start; flex-direction: column; }
  footer { grid-template-columns: 1fr 1fr; gap: 32px; }
  footer > div:first-child { grid-column: 1/-1; }
  footer > div:last-child { grid-column: auto; }
}

@media (max-width: 430px) {
  .brand small { display: none; }
  .hero h1 { font-size: 2.9rem; }
  .segmented { flex-direction: column; }
  .platform-picker fieldset { width: 100%; }
  .guide-platform { align-items: stretch; flex-direction: column; }
  footer { grid-template-columns: 1fr; }
}

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