/* Hallmark · macrostructure: Split Studio · tone: soft · anchor hue: dusty-pink
 * nav: N12 announcement banner + retracting bar · footer: Ft5 statement
 * states: default · hover · focus · active · disabled · loading · error · success
 * pre-emit critique: P5 H5 E5 S5 R5 V5 · contrast: pass (40–41)
 * nav: N12 · footer: Ft5 · slop: pass (42–45) · mobile: pass (34, 49, 50–57)
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · icons: pass (30)
 */
@import url("../../tokens.css");

*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
body.is-modal-open { overflow: clip; }
img { display: block; max-width: 100%; height: auto; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration-thickness: var(--rule-hair); text-underline-offset: 0.22em; }
p, h1, h2, h3, ul, ol, dl, figure { margin: 0; }
h1, h2, h3 {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
  line-height: 1.15;
  letter-spacing: -0.025em;
}
h1 { font-size: var(--text-display); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-lg); }
ul, ol { padding-inline-start: var(--space-lg); }
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }
:focus { outline: none; }
:focus-visible { outline: var(--rule-strong) solid var(--color-focus); outline-offset: var(--space-2xs); }
button:disabled, [aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
button[data-state="loading"] { cursor: wait; }
button[data-state="error"] { outline: var(--rule-strong) solid var(--color-error); outline-offset: var(--space-2xs); }
button[data-state="success"] { outline: var(--rule-strong) solid var(--color-success); outline-offset: var(--space-2xs); }
[hidden] { display: none !important; }
.skip-link {
  position: fixed;
  inset-block-start: var(--space-xs);
  inset-inline-start: var(--space-xs);
  z-index: var(--z-tooltip);
  transform: translateY(-160%);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: var(--radius-sm);
}
.skip-link:focus { transform: none; }
.container { width: min(100%, var(--container)); margin-inline: auto; padding-inline: var(--page-gutter); }
.narrow { width: min(100%, 52rem); margin-inline: auto; padding-inline: var(--page-gutter); }
.section { padding-block: var(--space-3xl); }
.section--tight { padding-block: var(--space-2xl); }
.section--tint { background: var(--color-paper-2); color: var(--color-ink); }
.section--ink { background: var(--color-indigo); color: var(--color-paper); }
.section-head { display: grid; gap: var(--space-md); margin-block-end: var(--space-2xl); max-width: 48rem; }
.section-head p { max-width: 62ch; color: var(--color-muted); }
.section--ink .section-head p { color: var(--color-paper-3); }
.section--ink .kicker, .section--ink .timeline time { color: var(--color-lemon); }
.section--ink .split-media figcaption { color: var(--color-paper-3); }
.section-head--end { margin-inline-start: auto; text-align: end; }
.kicker { font-size: var(--text-sm); font-weight: 700; letter-spacing: 0.08em; color: var(--color-red); }
.muted { color: var(--color-muted); }
.tabular { font-variant-numeric: tabular-nums; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: var(--z-sticky);
  transform: translateY(0);
  transition: transform var(--dur-short) var(--ease-out);
}
.site-header.is-compact { transform: translateY(calc(var(--banner-h) * -1)); }
.site-header.is-dismissed { transform: none; }
.site-header.is-dismissed .promo { display: none; }
.promo {
  min-height: var(--banner-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding-inline: var(--page-gutter);
  background: var(--color-indigo);
  color: var(--color-paper);
  font-size: var(--text-sm);
}
.promo p { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.promo a { color: var(--color-lemon); font-weight: 700; white-space: nowrap; }
.promo :focus-visible, .section--ink :focus-visible, .btn--dark:focus-visible { outline-color: var(--color-lemon); }
.promo-close, .menu-toggle, .lightbox-control {
  min-width: 2.75rem;
  min-height: 2.75rem;
  border: var(--rule-hair) solid currentColor;
  border-radius: var(--radius-pill);
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out);
}
.promo-close { min-width: 1.75rem; min-height: 1.75rem; border: 0; }
.promo-close::before, .promo-close::after {
  content: "";
  position: absolute;
  width: 0.9rem;
  height: var(--rule-hair);
  background: currentColor;
}
.promo-close { position: relative; display: grid; place-items: center; }
.promo-close::before { transform: rotate(45deg); }
.promo-close::after { transform: rotate(-45deg); }
.nav-bar { min-height: var(--nav-h); background: var(--color-paper); color: var(--color-ink); border-block-end: var(--rule-hair) solid var(--color-rule); }
.nav-inner { min-height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); }
.brand { display: inline-flex; align-items: center; gap: var(--space-sm); font-family: var(--font-display); font-weight: 800; text-decoration: none; white-space: nowrap; }
.brand img { width: 2.5rem; height: 2.5rem; border-radius: 50%; object-fit: cover; border: var(--rule-hair) solid var(--color-rule); }
.nav-links { display: none; align-items: center; gap: var(--space-lg); list-style: none; padding: 0; }
.nav-links a { font-size: var(--text-sm); font-weight: 700; text-decoration: none; white-space: nowrap; }
.brand, .nav-links a, .promo a, .tab, .mobile-menu a { line-height: 1; }
.nav-links a[aria-current="page"], .nav-links a:hover { color: var(--color-red); }
.nav-actions { display: flex; align-items: center; gap: var(--space-xs); }
.menu-toggle { display: grid; place-items: center; border-color: var(--color-rule); }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; width: 1.1rem; height: var(--rule-strong); background: var(--color-ink); transition: transform var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out); }
.menu-toggle { gap: var(--space-2xs); }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(0.375rem) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-0.375rem) rotate(-45deg); }
.mobile-menu {
  position: absolute;
  inset: calc(var(--banner-h) + var(--nav-h)) 0 auto;
  padding: var(--space-md) var(--page-gutter) var(--space-lg);
  background: var(--color-paper);
  color: var(--color-ink);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}
.is-compact .mobile-menu { inset-block-start: var(--nav-h); }
.is-dismissed .mobile-menu { inset-block-start: var(--nav-h); }
.mobile-menu a { display: block; min-height: 2.75rem; padding-block: var(--space-sm); text-decoration: none; font-weight: 700; white-space: nowrap; }

.btn {
  position: relative;
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  overflow: hidden;
  border: var(--rule-strong) solid var(--color-ink);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  line-height: 1;
  transition: transform var(--dur-micro) var(--ease-out), background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out);
}
.btn--download { background: var(--color-accent); color: var(--color-accent-ink); border-color: var(--color-accent-deep); }
.btn--download::before {
  content: "";
  position: absolute;
  inset: -40% auto -40% -35%;
  width: 20%;
  background: var(--color-sheen);
  transform: skewX(-18deg) translateX(-220%);
  animation: cta-sheen 1s var(--ease-out) 0.7s 1 both;
}
.btn--secondary { background: var(--color-paper); color: var(--color-ink); }
.btn--dark { background: var(--color-indigo); color: var(--color-paper); border-color: var(--color-indigo); }
.btn[data-state="loading"] { cursor: wait; }
.btn[data-state="loading"]::after { content: ""; width: 0.9rem; height: 0.9rem; border: var(--rule-strong) solid currentColor; border-inline-end-color: transparent; border-radius: 50%; animation: spin 0.9s linear infinite; }
.btn[data-state="error"] { border-color: var(--color-error); color: var(--color-error); }
.btn[data-state="success"] { border-color: var(--color-success); }
.btn[aria-disabled="true"], .btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { transform: translateY(-1px); }
  .btn--secondary:hover { background: var(--color-ink); color: var(--color-paper); }
  .btn--download:hover::before { animation: cta-sheen 0.8s var(--ease-out) 1 both; }
  .promo-close:hover, .menu-toggle:hover, .lightbox-control:hover { background: var(--color-paper-3); }
}
.btn:active, .promo-close:active, .menu-toggle:active, .lightbox-control:active { transform: translateY(1px); }
@keyframes cta-sheen { to { transform: skewX(-18deg) translateX(820%); } }
@keyframes spin { to { transform: rotate(1turn); } }

.hero {
  position: relative;
  min-height: 46rem;
  padding-block-start: calc(var(--banner-h) + var(--nav-h));
  display: grid;
  align-items: end;
  isolation: isolate;
  background: var(--color-indigo);
  color: var(--color-paper);
}
.hero-media { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: 62% center; }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--color-overlay), var(--color-overlay-soft)); }
.hero-inner { width: min(100%, var(--container)); margin-inline: auto; padding: var(--space-2xl) var(--page-gutter) var(--space-xl); }
.hero-dialogue {
  max-width: 49rem;
  display: grid;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-paper);
  color: var(--color-ink);
  border: var(--rule-strong) solid var(--color-indigo);
  border-radius: var(--radius-md);
  box-shadow: 0 1rem 2rem var(--color-shadow);
  animation: hero-enter var(--dur-long) var(--ease-out) both;
}
.hero-title { font-size: var(--text-display-s); }
.hero-title span { display: block; margin-block-start: var(--space-xs); font-family: var(--font-body); font-size: var(--text-sm); font-weight: 700; letter-spacing: 0; color: var(--color-muted); }
.tag-row, .cta-row { display: flex; flex-wrap: wrap; gap: var(--space-xs); }
.tag { display: inline-flex; align-items: center; min-height: 2rem; padding: var(--space-2xs) var(--space-sm); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-pill); background: var(--color-paper-2); font-size: var(--text-sm); font-weight: 700; white-space: nowrap; }
.hero-lede { max-width: 62ch; font-size: var(--text-md); }
.hero-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.hero-facts div { padding-block-start: var(--space-sm); border-block-start: var(--rule-hair) solid var(--color-rule); }
.hero-facts dt { font-size: var(--text-xs); color: var(--color-muted); }
.hero-facts dd { margin: 0; font-weight: 800; font-variant-numeric: tabular-nums; }
@keyframes hero-enter { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.petals { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: -1; }
.petal { position: absolute; inset-block-start: -5%; width: 0.55rem; height: 0.9rem; border-radius: 80% 20% 70% 30%; background: var(--color-pink); opacity: 0.58; animation: petal-fall 15s var(--ease-in-out) infinite; }
.petal:nth-child(1) { inset-inline-start: 8%; animation-delay: -2s; }
.petal:nth-child(2) { inset-inline-start: 24%; animation-delay: -9s; }
.petal:nth-child(3) { inset-inline-start: 43%; animation-delay: -5s; }
.petal:nth-child(4) { inset-inline-start: 67%; animation-delay: -12s; }
.petal:nth-child(5) { inset-inline-start: 84%; animation-delay: -7s; }
@keyframes petal-fall { to { opacity: 0; transform: translate3d(5rem, 54rem, 0) rotate(300deg); } }

.store-strip { background: var(--color-indigo); color: var(--color-paper); }
.spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.spec-grid div { min-width: 0; padding: var(--space-lg) var(--space-md); border-block-end: var(--rule-hair) solid var(--color-rule); }
.spec-grid dt { font-size: var(--text-xs); color: var(--color-blue); }
.spec-grid dd { margin: var(--space-2xs) 0 0; font-weight: 800; overflow-wrap: anywhere; }

.split { display: grid; gap: var(--space-xl); align-items: center; }
.split-copy { display: grid; gap: var(--space-lg); min-width: 0; }
.split-copy p { max-width: 65ch; }
.split-copy .prose { display: grid; gap: var(--space-md); }
.split-media { min-width: 0; }
.split-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-md); border: var(--rule-hair) solid var(--color-rule); }
.split-media--portrait img { aspect-ratio: 3 / 4; object-position: center top; }
.split-media figcaption { padding-block-start: var(--space-sm); font-size: var(--text-sm); color: var(--color-muted); }
.choice-list { display: grid; gap: var(--space-sm); list-style: none; padding: 0; }
.choice-list li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-sm); align-items: start; padding: var(--space-md); background: var(--color-paper-2); border-radius: var(--radius-sm); }
.choice-list li::before { content: ""; width: 0.65rem; height: 0.65rem; margin-block-start: var(--space-xs); background: var(--color-red); transform: rotate(45deg); }

.feature-grid { display: grid; gap: var(--space-md); }
.feature-card { min-width: 0; display: grid; gap: var(--space-sm); padding: var(--space-lg); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-md); background: var(--color-paper); transition: transform var(--dur-short) var(--ease-out), box-shadow var(--dur-short) var(--ease-out); }
.feature-card:nth-child(2) { background: var(--color-paper-2); }
.feature-card strong { color: var(--color-red); }
@media (hover: hover) and (pointer: fine) { .feature-card:hover { transform: translateY(-2px); box-shadow: 0 0.5rem 1rem var(--color-shadow); } }

.gallery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.gallery-card { min-width: 0; padding: 0; overflow: hidden; border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-sm); background: var(--color-paper); color: var(--color-ink); text-align: start; cursor: pointer; transition: transform var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out); }
.gallery-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out); }
.gallery-card span { display: block; padding: var(--space-sm); font-weight: 700; }
.gallery-card[hidden] { display: none; }
@media (hover: hover) and (pointer: fine) { .gallery-card:hover { border-color: var(--color-red); } .gallery-card:hover img { transform: scale(1.02); } }
.gallery-card:active img { opacity: 0.86; }
.tabs { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-block-end: var(--space-xl); }
.tab { min-height: 2.75rem; padding: var(--space-xs) var(--space-md); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-pill); background: var(--color-paper); color: var(--color-ink); font-weight: 700; white-space: nowrap; cursor: pointer; transition: background-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out); }
.tab[aria-selected="true"] { background: var(--color-indigo); color: var(--color-paper); border-color: var(--color-indigo); }
.tab[data-state="loading"] { cursor: wait; }
.tab[data-state="error"] { color: var(--color-error); border-color: var(--color-error); }
.tab[data-state="success"] { border-color: var(--color-success); }
.tab:disabled, .tab[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
@media (hover: hover) and (pointer: fine) { .tab:hover { transform: translateY(-1px); } }
.tab:active { transform: translateY(1px); }

.lightbox { position: fixed; inset: 0; margin: auto; width: min(94%, 72rem); max-height: 88dvh; padding: var(--space-sm); border: 0; border-radius: var(--radius-md); background: var(--color-ink); color: var(--color-paper); opacity: 0; transform: scale(0.98); transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out); }
.lightbox[open] { opacity: 1; transform: none; }
.lightbox::backdrop { background: var(--color-overlay); }
.lightbox-figure { display: grid; gap: var(--space-xs); }
.lightbox-figure img { width: 100%; max-height: 74dvh; object-fit: contain; }
.lightbox-controls { display: flex; justify-content: center; gap: var(--space-xs); padding-block-start: var(--space-xs); }
.lightbox-control { min-width: 4.5rem; border-color: var(--color-paper-3); }

.timeline { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0 var(--space-lg); }
.timeline time { position: relative; padding-block: var(--space-lg); font-weight: 800; font-variant-numeric: tabular-nums; color: var(--color-red); }
.timeline article { padding-block: var(--space-lg); border-block-start: var(--rule-hair) solid var(--color-rule); }
.timeline article p { margin-block-start: var(--space-xs); }

.fit-grid { display: grid; gap: var(--space-md); }
.fit-card { padding: var(--space-lg); background: var(--color-paper); border-block-start: var(--rule-strong) solid var(--color-indigo); }
.fit-card p { margin-block-start: var(--space-xs); }

.faq-list { display: grid; gap: var(--space-xs); }
.faq-item { border-block-end: var(--rule-hair) solid var(--color-rule); }
.faq-item summary { position: relative; display: flex; min-height: 3.5rem; align-items: center; justify-content: space-between; gap: var(--space-md); padding-block: var(--space-md); font-family: var(--font-display); font-size: var(--text-md); font-weight: 800; cursor: pointer; }
.faq-item summary::after { content: "+"; flex: 0 0 auto; font-family: var(--font-body); font-size: var(--text-lg); }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 0 var(--space-lg); max-width: 66ch; color: var(--color-muted); }

.platform-grid, .guide-grid { display: grid; gap: var(--space-md); }
.platform-card { display: grid; gap: var(--space-lg); padding: var(--space-xl); border: var(--rule-strong) solid var(--color-indigo); border-radius: var(--radius-md); background: var(--color-paper); }
.platform-card[aria-disabled="true"] { opacity: 0.58; border-color: var(--color-rule); }
.platform-card ul { display: grid; gap: var(--space-xs); }
.recommend { width: fit-content; padding: var(--space-2xs) var(--space-sm); border-radius: var(--radius-pill); background: var(--color-lemon); color: var(--color-ink); font-size: var(--text-sm); font-weight: 800; }
.step-list { display: grid; gap: var(--space-md); list-style: none; padding: 0; counter-reset: install; }
.step-list li { counter-increment: install; display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: var(--space-md); align-items: start; }
.step-list li::before { content: counter(install); display: grid; width: 2.75rem; height: 2.75rem; place-items: center; border-radius: 50%; background: var(--color-indigo); color: var(--color-paper); font-weight: 800; font-variant-numeric: tabular-nums; }
.step-list h3 { margin-block-end: var(--space-xs); }
.requirements { display: grid; gap: var(--space-xs); }
.requirement-row { display: grid; grid-template-columns: minmax(7rem, 0.6fr) minmax(0, 1.4fr); gap: var(--space-md); padding-block: var(--space-sm); border-block-end: var(--rule-hair) solid var(--color-rule); }
.requirement-row dt { font-weight: 800; }
.requirement-row dd { margin: 0; }

.toc { position: relative; display: flex; flex-wrap: wrap; gap: var(--space-xs); padding: var(--space-md); background: var(--color-paper-2); border-radius: var(--radius-md); }
.toc a { min-height: 2.75rem; display: inline-flex; align-items: center; padding-inline: var(--space-md); border-radius: var(--radius-pill); background: var(--color-paper); text-decoration: none; font-weight: 700; white-space: nowrap; }
.guide-card { display: grid; gap: var(--space-sm); padding: var(--space-lg); border-block-end: var(--rule-hair) solid var(--color-rule); }
.guide-card a { width: fit-content; font-weight: 800; white-space: nowrap; }
.article { display: grid; gap: var(--space-lg); }
.article h2 { margin-block-start: var(--space-xl); }
.article h3 { margin-block-start: var(--space-md); }
.article p, .article li { max-width: 72ch; }
.article ul, .article ol { display: grid; gap: var(--space-xs); }
.note { padding: var(--space-lg); background: var(--color-paper-2); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-sm); }
.data-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.data-table th, .data-table td { padding: var(--space-sm); border-block-end: var(--rule-hair) solid var(--color-rule); text-align: start; vertical-align: top; }

.final-cta { padding-block: var(--space-3xl); background: var(--color-indigo); color: var(--color-paper); }
.final-cta-inner { display: grid; gap: var(--space-xl); align-items: end; }
.final-cta p { max-width: 60ch; margin-block-start: var(--space-md); color: var(--color-paper-3); }
.site-footer { padding-block: var(--space-3xl) calc(var(--space-4xl) + env(safe-area-inset-bottom)); }
.footer-statement { max-width: 25ch; font-family: var(--font-display); font-size: var(--text-2xl); line-height: 1.1; font-weight: 800; letter-spacing: -0.025em; }
.footer-layout { display: grid; gap: var(--space-xl); margin-block-start: var(--space-2xl); padding-block-start: var(--space-lg); border-block-start: var(--rule-hair) solid var(--color-rule); }
.footer-about { display: grid; gap: var(--space-sm); max-width: 33rem; }
.footer-links { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); }
.footer-links h3 { font-family: var(--font-body); font-size: var(--text-sm); letter-spacing: 0.06em; }
.footer-links ul { list-style: none; padding: 0; display: grid; gap: var(--space-xs); }
.footer-links a { font-size: var(--text-sm); line-height: 1.2; text-decoration: none; white-space: nowrap; }
.footer-links a:hover { text-decoration: underline; }
.legal { display: grid; gap: var(--space-xs); margin-block-start: var(--space-xl); font-size: var(--text-sm); color: var(--color-muted); }
.sticky-download { position: fixed; inset: auto var(--space-sm) max(var(--space-sm), env(safe-area-inset-bottom)); z-index: var(--z-sticky); display: flex; align-items: center; justify-content: space-between; gap: var(--space-xs); padding: var(--space-xs); border: var(--rule-hair) solid var(--color-rule); border-radius: var(--radius-md); background: var(--color-paper); color: var(--color-ink); box-shadow: 0 0.5rem 1.5rem var(--color-shadow); }
.sticky-download span { display: none; font-size: var(--text-sm); font-weight: 700; }
.back-top { position: fixed; inset: auto var(--space-sm) 5.5rem auto; z-index: var(--z-dropdown); width: 2.75rem; height: 2.75rem; display: grid; place-items: center; border: var(--rule-hair) solid var(--color-rule); border-radius: 50%; background: var(--color-paper); color: var(--color-ink); text-decoration: none; opacity: 0; pointer-events: none; transform: translateY(0.5rem); transition: opacity var(--dur-short) var(--ease-out), transform var(--dur-short) var(--ease-out); }
.back-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

@media (min-width: 40rem) {
  .nav-links { display: flex; }
  .menu-toggle { display: none; }
  .mobile-menu { display: none !important; }
  .hero { min-height: 50rem; }
  .hero-dialogue { padding: var(--space-xl); }
  .hero-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .spec-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-card:first-child { grid-column: span 2; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); align-items: end; }
  .fit-grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); }
  .fit-card:first-child { grid-row: span 2; }
  .guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sticky-download { inset-inline: auto var(--space-lg); }
  .sticky-download span { display: inline; }
  .back-top { inset-inline-end: var(--space-lg); }
}

@media (min-width: 60rem) {
  .section { padding-block: var(--space-4xl); }
  .split { grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); gap: var(--space-3xl); }
  .split--reverse .split-copy { order: 2; }
  .split--reverse .split-media { order: 1; }
  .split-media--portrait { max-width: 31rem; justify-self: end; }
  .spec-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .spec-grid div { border-block-end: 0; border-inline-end: var(--rule-hair) solid var(--color-rule); }
  .gallery-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .gallery-card:first-child { grid-column: span 2; grid-row: span 2; }
  .gallery-card:first-child img { aspect-ratio: 4 / 3; height: calc(100% - 3.25rem); }
  .feature-grid { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr) minmax(0, 1fr); }
  .feature-card:first-child { grid-column: span 2; }
  .feature-card:last-child { grid-column: 2 / span 2; }
  .final-cta-inner { grid-template-columns: minmax(0, 1.2fr) auto; }
  .footer-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); }
}

@media (min-width: 90rem) { .hero-media { object-position: center; } }
@media (pointer: coarse) { .btn, .tab, .mobile-menu a { min-height: 3rem; } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 150ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; scroll-behavior: auto !important; }
  .petals { display: none; }
  .hero-dialogue { animation: none; }
  .btn--download::before { animation: none; }
}