/* Hallmark · macrostructure: Long Document · theme: custom summer-paper · H2 hero · E8 verified game still
 * pre-emit critique: P5 H5 E5 S5 R5 V5
 * contrast: pass (40–41) · nav: N5 · footer: Ft5 · slop: pass (42–45)
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49)
 * icons: pass (30) · mobile: pass (34, 49, 50–57)
 */
@import "../../tokens.css";

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; scroll-padding-top: 6rem; }
body {
  margin: 0;
  min-width: 20rem;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-base) - 1);
  pointer-events: none;
  content: "";
  opacity: 0.18;
  background-image:
    repeating-linear-gradient(0deg, transparent 0, transparent 3px, color-mix(in oklch, var(--color-rule) 22%, transparent) 4px),
    repeating-linear-gradient(90deg, transparent 0, transparent 7px, color-mix(in oklch, var(--color-rule-blue) 14%, transparent) 8px);
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 0.2em; }
button, a { -webkit-tap-highlight-color: transparent; }
button, input, select, textarea { font: inherit; }
h1, h2, h3, h4 {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.03em;
}
p, ul, ol, dl, blockquote, figure { margin-block: 0; }
p + p { margin-block-start: var(--space-lg); }
ul, ol { padding-inline-start: var(--space-lg); }
::selection { background: var(--color-paper-warm); color: var(--color-ink); }

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-tooltip);
  transform: translateY(-200%);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-ink);
  color: var(--color-paper);
  text-decoration: none;
}
.skip-link:focus { transform: none; }

:focus-visible {
  outline: var(--rule-bold) solid var(--color-focus-contrast);
  outline-offset: var(--rule-bold);
  box-shadow: 0 0 0 5px var(--color-focus);
}

.site-shell { width: min(100% - (var(--page-gutter) * 2), var(--site-max)); margin-inline: auto; }
.reading-shell { width: min(100% - (var(--page-gutter) * 2), var(--reading-measure)); margin-inline: auto; }
.tnum { font-variant-numeric: tabular-nums; }
.fine { font-size: var(--text-sm); color: var(--color-muted); line-height: 1.55; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: clip; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.nav-pill {
  position: fixed;
  inset: var(--space-sm) auto auto 50%;
  z-index: var(--z-sticky-nav);
  width: max-content;
  max-width: calc(100% - (var(--space-md) * 2));
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 3.5rem;
  padding: var(--space-xs) var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-pill);
  background: var(--color-paper-glass);
  color: var(--color-ink);
  box-shadow: 0 0.5rem 1.5rem var(--color-shadow);
  backdrop-filter: blur(14px) saturate(110%);
}
.nav-pill__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  min-height: 2.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}
.nav-pill__brand img { width: 2.25rem; height: 2.25rem; border-radius: 50%; object-fit: cover; border: var(--rule-hair) solid var(--color-rule); }
.nav-pill__links { display: none; align-items: center; gap: var(--space-2xs); margin: 0; padding: 0; list-style: none; }
.nav-pill__links a,
.nav-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding-inline: var(--space-sm);
  border-radius: var(--radius-pill);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-short) var(--ease-out), background-color var(--dur-short) var(--ease-out);
}
.nav-pill__links a[aria-current="page"] { color: var(--color-ink); text-decoration: underline; text-decoration-color: var(--color-seal); text-decoration-thickness: var(--rule-bold); }
.nav-toggle, .icon-button, .filter-button, .back-to-top {
  display: inline-grid;
  place-items: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: 50%;
  background: var(--color-paper-blue);
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}
.nav-toggle svg { width: 1.25rem; height: 1.25rem; }
.nav-menu {
  position: fixed;
  inset-block-start: 4.8rem;
  inset-inline: var(--space-md);
  z-index: var(--z-dropdown);
  display: grid;
  grid-template-rows: 0fr;
  max-width: 34rem;
  margin-inline: auto;
  border: var(--rule-hair) solid transparent;
  border-radius: var(--radius-md);
  background: var(--color-paper);
  box-shadow: 0 0.5rem 1.5rem transparent;
  opacity: 0;
  transition: grid-template-rows var(--dur-long) var(--ease-in-out), opacity var(--dur-short) var(--ease-in);
}
.nav-menu.is-open { grid-template-rows: 1fr; border-color: var(--color-rule); box-shadow: 0 0.5rem 1.5rem var(--color-shadow); opacity: 1; transition-timing-function: var(--ease-out); }
.nav-menu__inner { overflow: clip; }
.nav-menu__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-xs); padding: var(--space-sm); }
.nav-menu a { justify-content: center; border-radius: var(--radius-sm); background: var(--color-paper-blue); }

.button {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 3rem;
  padding: var(--space-sm) var(--space-lg);
  overflow: clip;
  border: var(--rule-bold) solid var(--color-accent-strong);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  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), opacity var(--dur-short) var(--ease-out);
}
.button::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(105deg, transparent 35%, color-mix(in oklch, var(--color-paper-blue) 72%, transparent) 50%, transparent 65%);
  transform: translateX(-120%);
  opacity: 0;
}
.button--ghost { border-color: var(--color-paper); background: color-mix(in oklch, var(--color-ink) 65%, transparent); color: var(--color-paper); }
.button--line { border-color: var(--color-rule-blue); background: var(--color-paper-blue); color: var(--color-ink-blue); }
.button[aria-disabled="true"], .button:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.button[data-state="loading"] { cursor: wait; }
.button[data-state="loading"] .button__label::before { content: ""; display: inline-block; width: 0.75em; height: 0.75em; margin-inline-end: var(--space-xs); border: var(--rule-bold) solid currentColor; border-block-start-color: transparent; border-radius: 50%; animation: spin 0.9s linear infinite; }
.button[data-state="success"] { border-color: var(--color-success); }
.button[data-state="success"] .button__label::before { content: "已"; margin-inline-end: var(--space-xs); }
.button[data-state="error"] { border-color: var(--color-error); background: var(--color-paper); color: var(--color-error); }
.button[data-state="error"] .button__label::before { content: "!"; margin-inline-end: var(--space-xs); }

@media (hover: hover) and (pointer: fine) {
  .button:hover { transform: translateY(-1px); background: var(--color-paper-warm); }
  .button:hover::after, .button:focus-visible::after { animation: button-shine var(--dur-long) var(--ease-out) 1; opacity: 1; }
  .button--ghost:hover { background: var(--color-paper); color: var(--color-ink); }
  .button--line:hover { background: var(--color-accent); color: var(--color-accent-ink); }
  .nav-pill__links a:hover, .nav-menu a:hover { background: var(--color-paper-warm); color: var(--color-ink); }
  .nav-toggle:hover, .icon-button:hover, .filter-button:hover, .back-to-top:hover { background: var(--color-paper-warm); }
}
.button:active, .nav-toggle:active, .icon-button:active, .filter-button:active, .back-to-top:active { transform: translateY(1px); }
.nav-pill__links a:active, .nav-menu a:active, .gallery-button:active, .guide-toc a:active, .guide-card a:active, .site-footer a:active { opacity: 0.72; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(42rem, 86dvh, 58rem);
  display: grid;
  align-items: end;
  padding: 6rem var(--page-gutter) 8rem;
  overflow: clip;
  background: var(--color-ink);
  color: var(--color-paper);
}
.hero::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(90deg, var(--color-overlay) 0%, var(--color-overlay-soft) 58%, transparent 100%);
}
.hero__image { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero__inner { width: min(100%, var(--site-max)); margin-inline: auto; display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: end; gap: var(--space-2xl); }
.hero__copy { max-width: 48rem; animation: paper-unfold var(--dur-long) var(--ease-out) both; transform-origin: left bottom; }
.hero__tags { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-block-end: var(--space-lg); }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: var(--space-2xs) var(--space-sm);
  border: var(--rule-hair) solid color-mix(in oklch, var(--color-paper) 55%, transparent);
  color: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 700;
  white-space: nowrap;
}
.hero h1 { max-width: 13ch; color: var(--color-paper); font-size: var(--text-display-s); line-height: 1.06; }
.hero h1 small { display: block; margin-block-start: var(--space-md); color: var(--color-paper-warm); font-family: var(--font-body); font-size: clamp(1rem, 2vw, 1.35rem); font-weight: 700; letter-spacing: 0.04em; line-height: 1.3; }
.hero__lede { max-width: 44rem; margin-block-start: var(--space-lg); color: var(--color-paper-blue); font-size: var(--text-md); line-height: 1.6; }
.hero__actions { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-sm); margin-block-start: var(--space-xl); }
.hero__proof {
  align-self: end;
  justify-self: end;
  width: min(100%, 22rem);
  padding: var(--space-lg);
  border-block: var(--rule-hair) solid color-mix(in oklch, var(--color-paper) 48%, transparent);
  background: color-mix(in oklch, var(--color-ink) 52%, transparent);
  backdrop-filter: blur(8px);
}
.hero__proof strong { display: block; color: var(--color-paper); font-family: var(--font-display); font-size: var(--text-xl); font-weight: 900; font-variant-numeric: tabular-nums; }
.hero__proof span { display: block; margin-block-start: var(--space-2xs); color: var(--color-paper-blue); font-size: var(--text-sm); }
.hero__proof time { display: block; margin-block-start: var(--space-sm); color: var(--color-paper-warm); font-size: var(--text-xs); }
.hero .review-score {
  position: static;
  align-self: end;
  justify-self: end;
  width: min(100%, 22rem);
  padding: var(--space-lg);
  border-block: var(--rule-hair) solid color-mix(in oklch, var(--color-paper) 48%, transparent);
  background: color-mix(in oklch, var(--color-ink) 52%, transparent);
  backdrop-filter: blur(8px);
}
.hero .review-score strong { color: var(--color-paper); }
.hero .review-score span { color: var(--color-paper-blue); }
.hero .review-score time { color: var(--color-paper-warm); }
.chapter-mark { display: block; margin-block-end: var(--space-sm); color: var(--color-seal); font-family: var(--font-body); font-size: var(--text-sm); font-weight: 900; letter-spacing: 0.12em; }
.petal { position: absolute; z-index: -1; width: 0.65rem; height: 0.3rem; border-radius: 70% 20%; background: var(--color-paper-warm); opacity: 0; animation: petal-drift 16s var(--ease-in-out) infinite; }
.petal--one { inset-block-start: 18%; inset-inline-end: 14%; }
.petal--two { inset-block-start: 9%; inset-inline-end: 34%; animation-delay: -8s; }

.info-ledger { position: relative; z-index: var(--z-raised); margin-block-start: calc(var(--space-xl) * -1); }
.info-ledger__inner { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: var(--rule-hair) solid var(--color-rule); background: var(--color-paper-blue); box-shadow: 0 0.5rem 1.5rem var(--color-shadow); }
.info-ledger dl { display: contents; }
.info-ledger__item { min-width: 0; padding: var(--space-lg); border-block-end: var(--rule-hair) solid var(--color-rule); }
.info-ledger__item:nth-child(odd) { border-inline-end: var(--rule-hair) solid var(--color-rule); }
.info-ledger dt { color: var(--color-muted); font-size: var(--text-sm); }
.info-ledger dd { margin: var(--space-2xs) 0 0; color: var(--color-ink); font-family: var(--font-display); font-size: var(--text-md); font-weight: 900; line-height: 1.35; }

.section { position: relative; padding-block: var(--space-3xl); }
.section--tight { padding-block: var(--space-2xl); }
.section--blue { background: var(--color-paper-blue); color: var(--color-ink); }
.section--warm { background: color-mix(in oklch, var(--color-paper) 82%, var(--color-paper-warm)); color: var(--color-ink); }
.section--ink { background: var(--color-ink); color: var(--color-paper); }
.section--ink h2, .section--ink h3 { color: var(--color-paper); }
.section--ink p, .section--ink li { color: var(--color-paper-blue); }
.section-heading { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); align-items: end; gap: var(--space-xl); margin-block-end: var(--space-xl); }
.section-heading h2 { font-size: clamp(2rem, 5vw, var(--text-3xl)); }
.section-heading p { color: var(--color-muted); }
.section--ink .section-heading p { color: var(--color-paper-blue); }
.prose { font-family: var(--font-display); font-size: clamp(1.06rem, 1.4vw, 1.22rem); line-height: 1.92; }
.prose p:first-of-type::first-letter { float: left; margin: 0.12em 0.14em 0 0; color: var(--color-seal); font-size: 3.8em; font-weight: 900; line-height: 0.78; }
.margin-note { margin-block: var(--space-xl); padding-block: var(--space-md); border-block: var(--rule-hair) solid var(--color-rule); color: var(--color-ink-blue); font-family: var(--font-body); font-size: var(--text-sm); }

.story-spread { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-2xl); align-items: start; }
.story-spread figure { position: sticky; inset-block-start: 7rem; }
.story-spread img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: top; border: var(--rule-hair) solid var(--color-rule); }
.story-spread figcaption, .gallery-card figcaption { padding-block-start: var(--space-sm); color: var(--color-muted); font-size: var(--text-sm); }

.feature-mosaic { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--space-md); }
.feature {
  grid-column: span 6;
  min-width: 0;
  padding: var(--space-xl);
  border-block-start: var(--rule-bold) solid var(--color-ink-blue);
  background: var(--color-paper-blue);
  box-shadow: 0 1px 2px var(--color-shadow);
  transition: transform var(--dur-short) var(--ease-out), box-shadow var(--dur-short) var(--ease-out);
}
.feature:nth-child(1) { grid-column: span 7; }
.feature:nth-child(2) { grid-column: span 5; margin-block-start: var(--space-xl); }
.feature:nth-child(3) { grid-column: span 5; }
.feature:nth-child(4) { grid-column: span 7; margin-block-start: calc(var(--space-lg) * -1); }
.feature__index { display: block; color: var(--color-seal); font-size: var(--text-sm); font-weight: 900; font-variant-numeric: tabular-nums; }
.feature h3 { margin-block-start: var(--space-sm); font-size: var(--text-lg); }
.feature p { margin-block-start: var(--space-sm); color: var(--color-ink-soft); }
@media (hover: hover) and (pointer: fine) { .feature:hover { transform: translateY(-2px); box-shadow: 0 0.45rem 1rem var(--color-shadow); } }

.gallery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-lg); }
.gallery-grid--full { grid-template-columns: minmax(0, 1fr); }
.gallery-card { min-width: 0; }
.gallery-button { width: 100%; padding: 0; overflow: clip; border: var(--rule-hair) solid var(--color-rule); background: var(--color-paper-blue); color: var(--color-ink); cursor: zoom-in; }
.gallery-button img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform var(--dur-short) var(--ease-out), opacity var(--dur-short) var(--ease-out); }
.gallery-card--portrait .gallery-button img { aspect-ratio: 3 / 4; object-position: top; }
@media (hover: hover) and (pointer: fine) { .gallery-button:hover img { transform: scale(1.015); } }
.gallery-button:active img { opacity: 0.82; }
.filters { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-xs); margin-block-end: var(--space-xl); }
.filter-button { width: auto; min-width: 0; padding-inline: var(--space-md); border-radius: var(--radius-pill); white-space: nowrap; }
.filter-button[aria-pressed="true"] { border-color: var(--color-ink-blue); background: var(--color-accent); color: var(--color-accent-ink); }
.gallery-empty { padding: var(--space-xl); border-block: var(--rule-hair) solid var(--color-rule); color: var(--color-muted); }
.gallery-empty[hidden] { display: none; }

.download-band { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: var(--space-2xl); align-items: center; }
.download-band h2 { color: var(--color-paper); font-size: clamp(2rem, 5vw, var(--text-3xl)); }
.download-band__spec { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); margin-block-start: var(--space-xl); }
.download-band__spec div { padding-block-start: var(--space-sm); border-block-start: var(--rule-hair) solid color-mix(in oklch, var(--color-paper) 42%, transparent); }
.download-band__spec dt { color: var(--color-paper-blue); font-size: var(--text-sm); }
.download-band__spec dd { margin: var(--space-2xs) 0 0; color: var(--color-paper); font-weight: 900; }
.download-band__action { justify-self: end; text-align: end; }
.download-band__action .button { min-height: 4rem; padding-inline: var(--space-xl); font-size: var(--text-md); }

.timeline, .faq { border-block-start: var(--rule-bold) solid var(--color-ink); }
.timeline details, .faq details { border-block-end: var(--rule-hair) solid var(--color-rule); }
details summary { display: grid; grid-template-columns: minmax(0, 8rem) minmax(0, 1fr) auto; align-items: center; gap: var(--space-md); min-height: 4rem; padding-block: var(--space-md); color: var(--color-ink); cursor: pointer; list-style: none; }
.faq details summary { grid-template-columns: minmax(0, 1fr) auto; font-family: var(--font-display); font-weight: 900; }
details summary::-webkit-details-marker { display: none; }
details summary strong { font-family: var(--font-display); font-size: var(--text-md); }
details summary time { color: var(--color-muted); font-size: var(--text-sm); font-variant-numeric: tabular-nums; }
.details-icon { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border: var(--rule-hair) solid var(--color-rule); border-radius: 50%; font-size: var(--text-lg); transition: transform var(--dur-short) var(--ease-out); }
details[open] .details-icon { transform: rotate(45deg); }
.details-body, .faq__body { padding: 0 3.75rem var(--space-lg) min(8rem, 18vw); color: var(--color-ink-soft); }
.faq__body { padding-inline-start: 0; max-width: 62ch; }

.review-summary { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--space-2xl); align-items: start; }
.review-score { position: sticky; inset-block-start: 7rem; padding-block-start: var(--space-md); border-block-start: var(--rule-bold) solid var(--color-seal); }
.review-score strong { display: block; color: var(--color-ink); font-family: var(--font-display); font-size: var(--text-3xl); font-weight: 900; line-height: 1; font-variant-numeric: tabular-nums; }
.review-score span, .review-score time { display: block; margin-block-start: var(--space-xs); color: var(--color-muted); font-size: var(--text-sm); }
.review-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-md); }
.review-card { padding: var(--space-lg); border-block-start: var(--rule-hair) solid var(--color-rule); background: var(--color-paper-blue); }
.review-card blockquote { font-family: var(--font-display); font-size: var(--text-md); line-height: 1.7; }
.review-card cite { display: block; margin-block-start: var(--space-md); color: var(--color-muted); font-size: var(--text-sm); font-style: normal; }
.review-card.is-observed { animation: card-arrive var(--dur-long) var(--ease-out) both; animation-delay: calc(var(--i, 0) * 80ms); }

.final-cta { padding-block: var(--space-3xl) calc(var(--space-4xl) + 4rem); background: var(--color-paper-warm); color: var(--color-ink); }
.final-cta__inner { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: var(--space-2xl); align-items: end; }
.final-cta h2 { max-width: 16ch; font-size: clamp(2.2rem, 5vw, var(--text-3xl)); }
.final-cta p { max-width: 50ch; margin-block-start: var(--space-lg); color: var(--color-ink-blue); }
.final-cta__actions { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-sm); }

.site-footer { padding: var(--space-3xl) var(--page-gutter) calc(var(--space-3xl) + 5rem); background: var(--color-ink); color: var(--color-paper); }
.site-footer__statement { max-width: 28ch; color: var(--color-paper); font-family: var(--font-display); font-size: clamp(2rem, 5vw, var(--text-3xl)); font-weight: 900; line-height: 1.18; letter-spacing: -0.03em; }
.site-footer__grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-2xl); margin-block-start: var(--space-2xl); padding-block-start: var(--space-lg); border-block-start: var(--rule-hair) solid color-mix(in oklch, var(--color-paper) 35%, transparent); }
.site-footer__brand { color: var(--color-paper); font-family: var(--font-display); font-size: var(--text-lg); font-weight: 900; text-decoration: none; }
.site-footer p { color: var(--color-paper-blue); }
.site-footer__links, .site-footer__related { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-xs) var(--space-lg); margin-block-start: var(--space-md); }
.site-footer__links a, .site-footer__related a { min-height: 2.75rem; display: inline-flex; align-items: center; color: var(--color-paper); text-decoration-thickness: var(--rule-hair); white-space: nowrap; }
.site-footer__legal { margin-block-start: var(--space-xl); padding-block-start: var(--space-lg); border-block-start: var(--rule-hair) solid color-mix(in oklch, var(--color-paper) 26%, transparent); color: var(--color-paper-blue); font-size: var(--text-sm); }

.sticky-download { position: fixed; inset: auto 0 0; z-index: var(--z-sticky); padding: var(--space-xs) var(--page-gutter) max(var(--space-xs), env(safe-area-inset-bottom)); border-block-start: var(--rule-hair) solid var(--color-rule); background: var(--color-paper-glass); color: var(--color-ink); backdrop-filter: blur(14px) saturate(110%); }
.sticky-download__inner { width: min(100%, var(--site-max)); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); }
.sticky-download__copy strong, .sticky-download__copy span { display: block; }
.sticky-download__copy span { color: var(--color-muted); font-size: var(--text-sm); }
.back-to-top { position: fixed; inset-block-end: 5.8rem; inset-inline-end: var(--space-md); z-index: var(--z-sticky); opacity: 0; transform: translateY(var(--space-sm)); pointer-events: none; }
.back-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }

.lightbox { position: fixed; inset: 0; width: min(92%, 76rem); height: fit-content; max-height: 90dvh; margin: auto; padding: 0; overflow: visible; border: 0; background: transparent; color: var(--color-paper); }
.lightbox::backdrop { background: var(--color-overlay); }
.lightbox__figure { display: grid; gap: var(--space-sm); }
.lightbox__image { width: 100%; max-height: 78dvh; object-fit: contain; background: var(--color-ink); }
.lightbox__caption { color: var(--color-paper); text-align: center; }
.lightbox__close, .lightbox__prev, .lightbox__next { position: fixed; z-index: var(--z-modal); background: var(--color-paper); }
.lightbox__close { inset-block-start: var(--space-lg); inset-inline-end: var(--space-lg); }
.lightbox__prev { inset-block-start: 50%; inset-inline-start: var(--space-lg); }
.lightbox__next { inset-block-start: 50%; inset-inline-end: var(--space-lg); }

.page-hero { padding: 9rem var(--page-gutter) var(--space-3xl); background: var(--color-paper-blue); color: var(--color-ink); }
.page-hero__inner { width: min(100%, var(--site-max)); margin-inline: auto; display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: var(--space-2xl); align-items: end; }
.page-hero h1 { font-size: var(--text-display-s); }
.page-hero__lede { max-width: 48ch; margin-block-start: var(--space-lg); color: var(--color-ink-blue); font-size: var(--text-md); }
.page-hero figure img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border: var(--rule-hair) solid var(--color-rule); }

.platform-grid, .requirements { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-lg); }
.platform-card, .requirements article { position: relative; padding: var(--space-xl); border: var(--rule-hair) solid var(--color-rule); background: var(--color-paper-blue); }
.platform-card[data-recommended="true"] { border-block-start: var(--rule-bold) solid var(--color-seal); }
.platform-card__label { display: inline-block; margin-block-end: var(--space-lg); color: var(--color-seal); font-size: var(--text-sm); font-weight: 900; }
.platform-card h3, .requirements h3 { font-size: var(--text-xl); }
.platform-card p { margin-block: var(--space-md) var(--space-lg); color: var(--color-ink-soft); }
.requirements dl { margin-block-start: var(--space-lg); }
.requirements dl div { display: grid; grid-template-columns: minmax(0, 7rem) minmax(0, 1fr); gap: var(--space-md); padding-block: var(--space-sm); border-block-start: var(--rule-hair) solid var(--color-rule); }
.requirements dt { color: var(--color-muted); }
.requirements dd { margin: 0; font-weight: 700; }
.steps { counter-reset: step; display: grid; gap: var(--space-xl); }
.step { counter-increment: step; display: grid; grid-template-columns: 4rem minmax(0, 1fr); gap: var(--space-lg); }
.step::before { content: counter(step, decimal-leading-zero); color: var(--color-seal); font-family: var(--font-display); font-size: var(--text-xl); font-weight: 900; font-variant-numeric: tabular-nums; }
.step h3 { font-size: var(--text-lg); }
.step p { margin-block-start: var(--space-xs); color: var(--color-ink-soft); }

.guide-layout { display: grid; grid-template-columns: minmax(0, 16rem) minmax(0, 1fr); gap: var(--space-2xl); align-items: start; }
.guide-toc { position: sticky; inset-block-start: 7rem; padding-block-start: var(--space-md); border-block-start: var(--rule-bold) solid var(--color-seal); }
.guide-toc ol { display: grid; gap: var(--space-xs); margin: 0; padding: 0; list-style: none; }
.guide-toc a { display: inline-flex; align-items: center; min-height: 2.75rem; color: var(--color-ink-blue); font-weight: 700; white-space: nowrap; }
.guide-content { min-width: 0; }
.guide-content section { scroll-margin-top: 7rem; padding-block: var(--space-xl); border-block-start: var(--rule-hair) solid var(--color-rule); }
.guide-content h2 { font-size: var(--text-2xl); }
.guide-content h3 { margin-block-start: var(--space-xl); font-size: var(--text-lg); }
.guide-content p, .guide-content li { max-width: 68ch; }
.guide-content p { margin-block-start: var(--space-md); }
.guide-content ul, .guide-content ol { display: grid; gap: var(--space-sm); margin-block-start: var(--space-lg); }
.guide-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); margin-block-end: var(--space-2xl); }
.guide-card { padding: var(--space-lg); border-block-start: var(--rule-bold) solid var(--color-ink-blue); background: var(--color-paper-blue); }
.guide-card h3 { margin: 0; }
.guide-card p { margin-block: var(--space-sm); color: var(--color-ink-soft); }
.guide-card a { display: inline-flex; min-height: 2.75rem; align-items: center; color: var(--color-ink-blue); font-weight: 900; white-space: nowrap; }
.route-table { width: 100%; border-collapse: collapse; margin-block-start: var(--space-lg); font-variant-numeric: tabular-nums; }
.route-table th, .route-table td { padding: var(--space-sm); border-block-start: var(--rule-hair) solid var(--color-rule); text-align: start; vertical-align: top; }
.route-table th { color: var(--color-ink-blue); font-family: var(--font-display); }

@keyframes paper-unfold { from { opacity: 0; transform: scaleX(0.96) translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes petal-drift { 0% { opacity: 0; transform: translate3d(0,-2rem,0) rotate(0); } 14% { opacity: 0.55; } 75% { opacity: 0.35; } 100% { opacity: 0; transform: translate3d(-14rem,34rem,0) rotate(220deg); } }
@keyframes button-shine { to { transform: translateX(120%); } }
@keyframes card-arrive { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (min-width: 40rem) {
  .info-ledger__inner { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .info-ledger__item:nth-child(odd) { border-inline-end: 0; }
  .info-ledger__item:not(:nth-child(3n)) { border-inline-end: var(--rule-hair) solid var(--color-rule); }
  .gallery-grid--full { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 60rem) {
  .nav-pill__links { display: flex; }
  .nav-toggle { display: none; }
  .nav-menu { display: none; }
  .info-ledger__inner { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .info-ledger__item { border-block-end: 0; }
  .info-ledger__item:not(:last-child) { border-inline-end: var(--rule-hair) solid var(--color-rule); }
  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gallery-grid--full { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 59.99rem) {
  .hero__inner, .story-spread, .download-band, .review-summary, .final-cta__inner, .site-footer__grid, .page-hero__inner, .guide-layout { grid-template-columns: minmax(0, 1fr); }
  .hero__proof { justify-self: start; }
  .story-spread figure, .review-score, .guide-toc { position: static; }
  .story-spread figure { max-width: 24rem; }
  .section-heading { grid-template-columns: minmax(0, 1fr); gap: var(--space-md); }
  .download-band__action { justify-self: start; text-align: start; }
  .final-cta__actions { justify-content: flex-start; }
  .guide-toc ol { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 39.99rem) {
  .nav-pill { inset-inline: var(--space-xs); left: auto; width: calc(100% - (var(--space-md))); max-width: none; transform: none; justify-content: space-between; }
  .nav-pill__brand span { max-width: 10rem; overflow: clip; text-overflow: ellipsis; }
  .nav-pill > .button { display: none; }
  .hero { min-height: 44rem; padding-block-start: 6rem; padding-block-end: 8rem; }
  .hero::after { background: linear-gradient(0deg, var(--color-overlay) 0%, var(--color-overlay-soft) 78%, transparent 100%); }
  .hero__image { object-position: 68% center; }
  .hero h1 { max-width: 10ch; font-size: clamp(2.2rem, 11vw, 3.2rem); }
  .hero__lede { font-size: var(--text-base); }
  .hero__actions { display: grid; grid-template-columns: minmax(0, 1fr); }
  .hero__actions .button { width: 100%; }
  .info-ledger__item { padding: var(--space-md); }
  .section { padding-block: var(--space-2xl); }
  .feature-mosaic { grid-template-columns: minmax(0, 1fr); }
  .feature, .feature:nth-child(n) { grid-column: auto; margin-block-start: 0; padding: var(--space-lg); }
  .gallery-grid, .gallery-grid--full, .platform-grid, .requirements, .guide-cards { grid-template-columns: minmax(0, 1fr); }
  .download-band__spec { grid-template-columns: minmax(0, 1fr); }
  details summary { grid-template-columns: minmax(0, 1fr) auto; }
  details summary time { grid-column: 1 / -1; }
  .details-body, .faq__body { padding-inline-start: 0; padding-inline-end: 0; }
  .requirements dl div { grid-template-columns: minmax(0, 1fr); gap: var(--space-2xs); }
  .guide-toc ol, .guide-cards { grid-template-columns: minmax(0, 1fr); }
  .route-table, .route-table tbody, .route-table tr, .route-table th, .route-table td { display: block; width: 100%; }
  .route-table thead { position: absolute; width: 1px; height: 1px; overflow: clip; clip: rect(0,0,0,0); }
  .route-table td::before { content: attr(data-label); display: block; color: var(--color-muted); font-size: var(--text-sm); font-weight: 700; }
  .sticky-download__copy span { display: none; }
  .sticky-download__copy strong { max-width: 9rem; overflow: clip; text-overflow: ellipsis; white-space: nowrap; }
  .sticky-download .button { padding-inline: var(--space-md); }
  .lightbox__prev { inset-inline-start: var(--space-xs); }
  .lightbox__next { inset-inline-end: var(--space-xs); }
}

@media (pointer: coarse) {
  .button, .nav-pill__links a, .nav-menu a, .filter-button, .gallery-button, .guide-toc a, .guide-card a { min-height: 3rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 150ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; }
  .petal { display: none; }
  .hero__copy, .review-card.is-observed { animation-name: card-arrive; }
}