html { scroll-behavior: smooth; scroll-padding-top: 86px; }
.site-width { width: min(1160px, calc(100% - 80px)); margin-inline: auto; }
.site-header { min-height: 80px; padding: 18px max(40px, calc((100vw - 1160px)/2)); display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--border-soft); }
.brand-caption { color: var(--faint); font-size: 12px; font-weight: 400; letter-spacing: .06em; margin-left: 10px; padding-left: 18px; border-left: 1px solid var(--border); }
.site-header nav { display: flex; align-items: center; gap: 28px; }
.site-header nav > a:not(.button) { font-size: 12px; text-decoration: none; color: var(--muted); }
.site-header nav > a:hover { color: var(--text); }
.site-header nav > .button:hover { color: var(--ink); }
.hero { padding-top: 76px; padding-bottom: 54px; }
.hero-copy { position: relative; padding-bottom: 46px; }
.small-rule { display: inline-block; width: 22px; height: 1px; background: var(--accent); margin-right: 10px; vertical-align: middle; }
h1 { font-size: clamp(35px, 4.9vw, 61px); line-height: 1.3; font-weight: 560; letter-spacing: -.035em; margin: 0 0 24px; }
h1 > span { color: var(--accent); }
.hero-description { color: var(--muted); line-height: 1.95; font-size: 15px; margin: 0 0 28px; }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.hero-download { display: grid; gap: 8px; }
.platform-requirement, .hero-platform-note { font-size: 13px; line-height: 1.8; color: var(--muted); }
.hero-platform-note { margin: 16px 0 0; }
.hero-platform-note a { color: var(--accent); text-underline-offset: 3px; }
.text-link { text-decoration: none; color: var(--muted); font-size: 13px; }
.text-link span { padding-left: 12px; }
.text-link:hover { color: var(--text); }
.hero-note { display: flex; align-items: center; gap: 12px; margin: 24px 0 0; font-size: 12px; color: var(--faint); }
.product-figure { margin: 0; }
.product-figure figcaption { display: flex; justify-content: space-between; gap: 16px; margin: 14px 0 0; font-size: 12px; color: var(--faint); }
.capability-strip { border-block: 1px solid var(--border); }
.capability-strip > div { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 24px; }
.capability-strip span { font-size: 12px; letter-spacing: .13em; color: var(--faint); }
.capability-strip p { margin: 0; font-size: 12px; color: var(--muted); }
.features-section, .download-section { padding-block: 96px; }
.section-heading { display: flex; justify-content: space-between; gap: 36px; align-items: end; margin-bottom: 54px; }
h2 { font-size: clamp(28px, 3.2vw, 38px); line-height: 1.45; font-weight: 550; letter-spacing: -.025em; margin: 0; }
.section-heading > p { color: var(--muted); font-size: 13px; line-height: 1.9; margin: 0 0 7px; }
.feature-editorial { display: grid; grid-template-columns: 65px 1.5fr 1fr; gap: 24px; align-items: center; padding-block: 34px; border-top: 1px solid var(--border); }
.feature-number { align-self: start; padding-top: 6px; color: var(--faint); font-size: 12px; font-variant-numeric: tabular-nums; }
h3 { margin: 0 0 12px; font-size: 21px; font-weight: 550; }
.feature-editorial p { color: var(--muted); font-size: 13px; line-height: 1.95; margin: 0; max-width: 460px; }
.feature-tags { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 16px; }
.feature-tags span { color: var(--faint); font-size: 12px; }
.feature-tags span::before { content: '/'; padding-right: 7px; color: var(--accent); }
.feature-visual { display: flex; justify-content: center; align-items: center; gap: 12px; padding: 42px 18px; border: 1px solid var(--border-soft); background: var(--surface); border-radius: var(--radius); }
.feature-visual span { font-size: 12px; color: var(--muted); }
.feature-visual strong { color: var(--accent); font-weight: 400; }
.feature-visual i { width: 15px; height: 1px; background: var(--border); }
.mini-flow, .mini-note { padding: 24px 28px; background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius); }
.mini-flow > div { display: flex; align-items: center; gap: 18px; margin-bottom: 10px; font-size: 12px; color: var(--muted); }
.mini-flow span { flex: 0 0 2.5em; }
.mini-flow i { height: 5px; width: calc(var(--bar) * .7); background: var(--accent); opacity: .8; border-radius: 1px; }
.mini-flow small, .mini-note small { font-size: 12px; color: var(--faint); }
.mini-note > span { color: var(--accent); font-size: 12px; letter-spacing: .08em; }
.mini-note p { font-size: 14px; margin: 10px 0; }
.guide-section { background: var(--surface); border-block: 1px solid var(--border-soft); padding-block: 72px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; list-style: none; padding: 0; margin: 0; }
.steps li { border-top: 1px solid var(--border); padding-top: 20px; }
.steps li > span { font-size: 12px; color: var(--accent); }
.steps h3 { margin: 12px 0 8px; font-size: 17px; }
.steps p { margin: 0; color: var(--muted); font-size: 12px; }
.download-section { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.download-copy > p:not(.eyebrow) { color: var(--muted); font-size: 13px; line-height: 1.95; max-width: 350px; margin-block: 22px; }
.contact-link { display: flex; gap: 24px; width: fit-content; text-decoration: none; color: var(--accent); font-size: 16px; margin-top: 26px; }
.contact-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.copy-status { color: var(--muted); font-size: 12px; margin-left: 12px; }
.download-box { border: 1px solid #514a3d; border-radius: 9px; background: var(--surface); padding: 30px; }
.download-box-head { display: flex; align-items: center; gap: 14px; }
.platform-icon { display: grid; place-items: center; width: 44px; height: 44px; background: var(--elevated); border: 1px solid var(--border); font-size: 28px; font-weight: 300; }
.download-box h3 { font-size: 18px; margin: 0; }
.download-box-head p { margin: 0; font-size: 12px; color: var(--faint); }
.release-tag { margin-left: auto; font-size: 12px; color: var(--accent); border: 1px solid #514a3d; padding: 2px 9px; border-radius: 3px; white-space: nowrap; }
.download-box-description { font-size: 13px; color: var(--muted); margin-block: 23px; }
.download-button { width: 100%; }
.release-status { font-size: 12px; color: var(--faint); margin: 9px 0 0; min-height: 19px; }
.download-requirements { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.download-requirements span::before { content: '✓'; margin-right: 6px; color: var(--accent); }
.install-note { font-size: 13px; line-height: 1.8; color: var(--faint); margin: 13px 0 0; }
.release-checksum { margin-top: 18px; border-top: 1px solid var(--border); min-width: 0; }
.release-checksum summary { padding-block: 12px; min-height: 44px; cursor: pointer; color: var(--accent); font-size: 13px; }
.release-checksum p { font-size: 13px; line-height: 1.8; color: var(--muted); }
.checksum-value, .checksum-command { display: block; padding: 12px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; overflow-wrap: anywhere; user-select: text; }
.faq-section { border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr 1.5fr; gap: 90px; padding-block: 64px 86px; }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary { display: flex; justify-content: space-between; align-items: center; gap: 18px; cursor: pointer; padding-block: 19px; font-size: 14px; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--faint); transition: transform 150ms; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { font-size: 12px; color: var(--muted); line-height: 1.9; margin: 0 32px 20px 0; }
.site-footer { border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 25px; }
.site-footer .brand { font-size: 15px; }
.site-footer .brand-mark { width: 26px; height: 26px; font-size: 18px; }
.site-footer p, .site-footer small { color: var(--faint); font-size: 12px; }
@keyframes section-reveal { from { opacity: .45; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.reveal.is-visible { animation: section-reveal 380ms var(--ease) both; }
@media (min-width: 1350px) {
  .hero { display: grid; grid-template-columns: .95fr 1.25fr; width: min(1380px, calc(100% - 100px)); gap: 44px; align-items: center; padding-block: 105px 92px; }
  .hero h1 { font-size: 47px; }
  .hero-copy { padding-bottom: 25px; }
  .hero .eyebrow { font-size: 12px; }
  .hero-description { font-size: 13px; }
}
@media (max-width: 850px) {
  .site-width { width: calc(100% - 48px); }
  .site-header { padding-inline: 24px; min-height: 70px; }
  .brand-caption { display: none; }
  .site-header nav { gap: 18px; }
  .hero { padding-top: 54px; }
  .feature-editorial { grid-template-columns: 32px 1.4fr 1fr; gap: 16px; }
  .feature-editorial h3 { font-size: 18px; }
  .feature-visual { gap: 7px; padding-inline: 10px; }
  .feature-visual i { display: none; }
  .mini-flow, .mini-note { padding: 20px; }
  .download-section, .faq-section { gap: 40px; }
  .download-box { padding: 24px; }
  .capability-strip span { display: none; }
}
@media (max-width: 560px) {
  .site-width { width: calc(100% - 36px); }
  .site-header { padding: 14px 18px; min-height: 65px; flex-wrap: wrap; gap: 10px; }
  .site-header nav { flex-basis: 100%; justify-content: space-between; gap: 8px; }
  .site-header nav > a:not(.button) { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; }
  .brand { font-size: 17px; }
  .hero { padding-top: 42px; padding-bottom: 30px; }
  .hero .eyebrow { font-size: 12px; letter-spacing: .11em; }
  .small-rule { width: 10px; margin-right: 5px; }
  h1 { font-size: 34px; }
  .hero-description { font-size: 13px; }
  .desktop-break { display: none; }
  .hero-actions { gap: 18px; }
  .hero-note { gap: 8px; font-size: 12px; }
  .product-figure figcaption { flex-direction: column; gap: 3px; font-size: 12px; }
  .capability-strip > div { flex-wrap: wrap; gap: 12px; justify-content: start; padding-block: 19px; }
  .capability-strip p { flex: 1 0 42%; font-size: 12px; }
  .features-section, .download-section { padding-block: 58px; }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-heading > p { margin-top: 20px; font-size: 12px; }
  .feature-editorial { grid-template-columns: 25px 1fr; padding-block: 27px; }
  .feature-editorial > :last-child { grid-column: 2; }
  .feature-visual { padding-block: 27px; }
  .feature-editorial p { font-size: 12px; }
  .guide-section { padding-block: 52px; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .download-section, .faq-section { grid-template-columns: 1fr; gap: 32px; }
  .download-box { padding: 23px; }
  .faq-section { padding-block: 50px; }
  .site-footer { flex-wrap: wrap; }
  .site-footer p { flex: 1; text-align: right; }
  .site-footer small { flex-basis: 100%; }
}

/* Readable public labels also override the illustrative window's smaller defaults. */
.landing .preview-titlebar, .landing .preview-titlebar .preview-demo { font-size: 12px; }
@media (max-width: 560px) {
  .landing :is(.eyebrow, .hero .eyebrow, .hero-note, .product-figure figcaption,
    .capability-strip p, .capability-strip span, .section-heading > p, .feature-editorial p,
    .feature-number, .feature-tags span, .feature-visual span, .mini-flow > div, .mini-flow small, .mini-note small,
    .mini-note > span, .steps li > span, .steps p, .copy-status, .download-box-head p,
    .release-tag, .release-status, .faq-list details p, .site-footer p, .site-footer small,
    .preview-titlebar, .preview-titlebar .preview-demo) { font-size: 13px; }
}

.landing { --rise: #ef7f82; --fall: #60baa0; }
.landing .preview-price { color: var(--rise); }
@media (max-width: 560px) {
  .landing .button, .landing .text-button, .landing .text-link, .landing .contact-link { min-height: 44px; }
  .landing .text-button, .landing .text-link { display: inline-flex; align-items: center; }
}