:root {
  color-scheme: light;
  --paper: #f6f7f3;
  --surface: #ffffff;
  --ink: #202b27;
  --muted: #62716a;
  --line: #d9e0d9;
  --accent: #286c52;
  --accent-hover: #18563e;
  --soft: #e8f1e9;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; background: var(--paper); color: var(--ink); }
[hidden] { display: none !important; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-underline-offset: .18em; }
:focus-visible { outline: 3px solid #347a62; outline-offset: 4px; }

.site-frame { width: min(100% - 64px, 1120px); margin-inline: auto; }
.site-header { display: flex; align-items: center; gap: 38px; min-height: 90px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; color: var(--ink); font-size: 20px; font-weight: 750; letter-spacing: -.05em; text-decoration: none; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 31px; height: 31px; border-radius: 10px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 800; letter-spacing: -.1em; }
.brand-mark span { color: #a4d9b8; }
.site-nav { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; margin-left: auto; }
.site-nav a { padding: 7px 0; color: var(--muted); font-size: 14px; font-weight: 600; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px var(--accent); }
.language-buttons { display: inline-flex; flex: none; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 9px; }
.language-buttons button { min-width: 31px; min-height: 28px; padding: 3px 5px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); cursor: pointer; font-size: 11px; font-weight: 750; }
.language-buttons button[aria-pressed="true"] { background: var(--ink); color: #fff; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { letter-spacing: -.045em; }
p, li { line-height: 1.65; }
.eyebrow { margin-bottom: 18px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.lead { color: var(--muted); font-size: clamp(17px, 1.8vw, 20px); line-height: 1.6; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 20px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--ink); font-size: 14px; font-weight: 750; text-align: center; text-decoration: none; transition: background .18s ease, transform .18s ease; }
.button:hover { background: var(--soft); transform: translateY(-1px); }
.button-primary { border-color: var(--accent); background: var(--accent); color: #fff; }
.button-primary:hover { background: var(--accent-hover); }
.text-link { font-size: 14px; font-weight: 700; text-decoration-thickness: 1px; }
.text-link:hover { color: var(--accent); }
.small-note { color: var(--muted); font-size: 13px; }

.hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(270px, .85fr); align-items: center; gap: clamp(40px, 7vw, 110px); padding: clamp(66px, 10vw, 128px) 0 100px; }
.hero h1 { max-width: 660px; margin-bottom: 26px; font-size: clamp(46px, 6.5vw, 78px); font-weight: 750; line-height: 1.02; }
.hero .lead { max-width: 570px; margin-bottom: 28px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-bottom: 17px; }
.hero .small-note { margin-bottom: 0; }
.companion-panel { padding: 30px; border-radius: 21px; background: #21362e; color: #f4f8f3; box-shadow: 14px 14px 0 #e3e9e1; }
.companion-panel__top { display: flex; align-items: center; gap: 8px; margin-bottom: 42px; color: #b6c9bc; font-size: 11px; font-weight: 750; letter-spacing: .12em; }
.panel-dot { width: 7px; height: 7px; border-radius: 50%; background: #addfb8; }
.companion-row { display: flex; align-items: center; gap: 15px; min-height: 76px; border-top: 1px solid #53655b; }
.companion-row + .companion-row { border-bottom: 1px solid #53655b; }
.companion-symbol { display: grid; place-items: center; width: 43px; height: 43px; border-radius: 50%; font-size: 18px; font-weight: 750; }
.companion-symbol--nova { background: #e9d3c8; color: #694944; }
.companion-symbol--lora { background: #d6e3d9; color: #38624e; }
.companion-name { font-size: 23px; font-weight: 650; letter-spacing: -.04em; }
.companion-format { margin-left: auto; color: #bfd0c2; font-size: 12px; font-weight: 700; }
.companion-panel p { margin: 24px 0 0; color: #c6d4ca; font-size: 13px; }

.install-section { padding: 38px 0 85px; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 25px; margin-bottom: 33px; }
.section-heading .eyebrow { margin-bottom: 8px; }
.section-heading h2 { margin: 0; font-size: clamp(29px, 3vw, 39px); }
.section-heading > p { max-width: 240px; margin: 0 0 3px; color: var(--muted); font-size: 13px; }
.install-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.install-steps li { display: flex; flex-direction: column; gap: 28px; min-height: 150px; padding: 20px 25px 0 0; font-size: 15px; font-weight: 600; }
.install-steps li + li { padding-left: 25px; border-left: 1px solid var(--line); }
.step-number { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 26px 0 36px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.site-footer a { font-weight: 700; }

.article-page { padding: 75px 0 90px; }
.page-heading { max-width: 740px; margin-bottom: 50px; }
.page-heading h1 { margin-bottom: 20px; font-size: clamp(40px, 6vw, 65px); line-height: 1.08; }
.page-heading .lead { margin-bottom: 0; }
.article-grid { max-width: 870px; border-top: 1px solid var(--line); }
.article-grid section { display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 20px; padding: 32px 0 36px; border-bottom: 1px solid var(--line); }
.article-grid h2 { margin-bottom: 16px; font-size: clamp(24px, 3vw, 31px); }
.article-grid p, .article-grid li { color: var(--muted); font-size: 15px; }
.article-grid p:last-child, .article-grid ul:last-child { margin-bottom: 0; }
.article-grid ul { padding-left: 20px; }
.article-grid li + li { margin-top: 8px; }
.section-index { padding-top: 7px; color: var(--accent); font-size: 12px; font-weight: 800; }

@media (max-width: 820px) {
  .site-header { flex-wrap: wrap; gap: 15px 20px; padding: 19px 0; }
  .site-nav { order: 3; width: 100%; margin-left: 0; }
  .language-buttons { margin-left: auto; }
  .hero { grid-template-columns: 1fr; padding: 70px 0; }
  .companion-panel { max-width: 540px; }
}
@media (max-width: 600px) {
  .site-frame { width: min(100% - 36px, 1120px); }
  .site-nav { gap: 18px; }
  .site-nav a { font-size: 13px; }
  .hero { gap: 48px; padding: 58px 0 64px; }
  .hero h1 { font-size: clamp(43px, 13vw, 62px); }
  .companion-panel { padding: 24px; box-shadow: 8px 8px 0 #e3e9e1; }
  .section-heading { display: block; }
  .section-heading > p { max-width: none; margin-top: 12px; }
  .install-steps { display: block; }
  .install-steps li, .install-steps li + li { min-height: 0; padding: 16px 0 20px; border-left: 0; border-bottom: 1px solid var(--line); gap: 10px; }
  .article-page { padding: 56px 0 70px; }
  .article-grid section { grid-template-columns: 1fr; gap: 8px; }
  .site-footer { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
  .button:hover { transform: none; }
}