/* Hallmark · genre: editorial · macrostructure: Split Studio · H2 Split Diptych knobs: ratio=7/5, right=photo, divider=negative-space
 * theme: custom · vibe: "summer paper, shrine red, strict grid" · paper: oklch(98.7% 0.009 230) · accent: oklch(52% 0.166 30)
 * display: Noto Serif SC · body: Noto Sans SC · axes: light / roman-serif / warm
 * enrichment: supplied factual game imagery · nav: N12 banner + retract · footer: Ft4 dense typographic · contrast: pass (40–41) · slop: pass (42–45)
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · mobile: pass (34, 49, 50–57) · icons: pass (30)
 * studied: no · context: explicit · v1.1.0
 * Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V5
 */
@import url("../../tokens.css");

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-width: 20rem;
  overflow-x: clip;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  min-height: 100dvh;
  background-color: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.75;
  padding-bottom: calc(4.75rem + env(safe-area-inset-bottom));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.38;
  background-image:
    repeating-linear-gradient(8deg, var(--color-transparent) 0 14px, var(--color-rule-warm) 15px, var(--color-transparent) 16px),
    repeating-linear-gradient(92deg, var(--color-transparent) 0 37px, var(--color-rule) 38px, var(--color-transparent) 39px);
}

img,
video {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: var(--rule-hair);
  text-underline-offset: 0.2em;
}

button,
a,
summary {
  -webkit-tap-highlight-color: var(--color-transparent);
}

button,
.button,
.nav-link,
.footer-link,
.filter-tab {
  white-space: nowrap;
}

button,
.button {
  min-height: 2.75rem;
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-xs);
  background-color: var(--color-paper-warm);
  color: var(--color-ink-strong);
  cursor: pointer;
  font: 700 var(--text-sm)/1 var(--font-body);
  letter-spacing: 0.02em;
  transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

:focus {
  outline: none;
}

:focus-visible {
  outline: var(--rule-strong) solid var(--color-focus);
  outline-offset: 3px;
}

button:active,
.button:active,
.is-active-force {
  transform: translateY(1px);
}

button:disabled,
.button[aria-disabled="true"],
[data-state="disabled"] {
  cursor: not-allowed;
  opacity: 0.5;
}

[data-state="loading"] {
  cursor: wait;
}

[data-state="error"] {
  border-color: var(--color-error);
  color: var(--color-error);
}

[data-state="success"] {
  border-color: var(--color-success);
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: 120;
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-ink-strong);
  color: var(--color-paper);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 80;
  min-height: var(--header-height);
  border-bottom: var(--rule-hair) solid var(--color-rule);
  background-color: color-mix(in oklch, var(--color-paper) 94%, var(--color-transparent));
  box-shadow: 0 0.5rem 1.5rem var(--color-shadow-soft);
  transition: transform var(--dur-base) var(--ease-out);
}

.site-header.is-compact {
  transform: translateY(calc(var(--banner-height) * -1));
}

.site-header.is-dismissed {
  min-height: var(--nav-height);
  transform: none;
}

.site-header.is-dismissed .site-banner {
  display: none;
}

.site-header.is-dismissed .mobile-sheet {
  inset-block-start: var(--nav-height);
}

.site-banner {
  min-height: var(--banner-height);
  padding-inline: var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background-color: var(--color-lemon);
  color: var(--color-ink-strong);
  font-size: var(--text-xs);
  font-weight: 800;
  line-height: 1;
}

.site-banner p {
  margin: 0;
}

.banner-dismiss {
  position: absolute;
  inset: 0 var(--space-sm) auto auto;
  width: var(--banner-height);
  min-height: var(--banner-height);
  padding: 0;
  border: 0;
  background-color: var(--color-transparent);
}

.nav-edge {
  width: min(100%, var(--content-wide));
  min-height: var(--nav-height);
  margin-inline: auto;
  padding-inline: var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.wordmark {
  min-width: 0;
  color: var(--color-ink-strong);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 900;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.wordmark-mark {
  color: var(--color-vermilion);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: clamp(var(--space-md), 2vw, var(--space-xl));
}

.nav-link {
  position: relative;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: var(--rule-strong);
  background-color: var(--color-vermilion);
}

.menu-toggle {
  width: 3rem;
  padding: 0;
  display: grid;
  place-items: center;
}

.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  width: 1.25rem;
  height: var(--rule-strong);
  background-color: var(--color-ink);
}

.menu-toggle-lines {
  position: relative;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
}

.menu-toggle-lines::before { transform: translateY(-0.4rem); }
.menu-toggle-lines::after { transform: translateY(0.4rem); }

.mobile-sheet {
  position: fixed;
  inset: var(--header-height) 0 auto;
  z-index: 75;
  padding: var(--space-lg) var(--page-gutter) var(--space-xl);
  display: grid;
  gap: var(--space-xs);
  border-bottom: var(--rule-hair) solid var(--color-rule);
  background-color: var(--color-paper-warm);
  box-shadow: 0 1.25rem 2.5rem var(--color-shadow);
}

.mobile-sheet[hidden] {
  display: none;
}

.mobile-sheet .nav-link {
  border-bottom: var(--rule-hair) solid var(--color-rule-warm);
}

.page-shell {
  width: min(100%, var(--content-wide));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.hero {
  position: relative;
  min-height: 100svh;
  padding-block: var(--header-height) 8.5rem;
  background-position: center;
  background-size: cover;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-color: var(--color-hero-overlay);
}

.hero-home {
  background-image: url("../images/daojiansao-scene-01.webp");
}

.hero-inner {
  min-height: calc(100svh - var(--header-height) - 8.5rem);
  display: grid;
  align-items: end;
  gap: var(--space-2xl);
}

.hero-copy {
  min-width: 0;
  color: var(--color-paper);
}

.game-logo {
  width: min(100%, 34rem);
  height: auto;
  margin-block-end: var(--space-lg);
  object-fit: contain;
  object-position: inline-start center;
}

.hero-kicker,
.section-kicker,
.folio,
.meta-label,
.chapter-no,
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-kicker {
  margin: 0 0 var(--space-lg);
  color: var(--color-lemon);
}

h1,
h2,
h3,
p {
  min-width: 0;
}

h1,
h2,
h3 {
  margin: 0;
  color: inherit;
  font-family: var(--font-display);
  font-style: normal;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

h1 {
  max-width: 14em;
  font-size: clamp(2.8rem, 5.2vw, 4.2rem);
  font-weight: 900;
  letter-spacing: -0.05em;
}

.h1-prefix {
  display: block;
  margin-block-end: var(--space-xs);
  color: var(--color-lemon);
  font-family: var(--font-body);
  font-size: 0.42em;
  letter-spacing: 0.06em;
}

h2 {
  font-size: clamp(2rem, 5vw, 4.25rem);
  font-weight: 900;
  letter-spacing: -0.035em;
}

h3 {
  font-size: var(--text-xl);
  font-weight: 800;
}

.hero-subtitle {
  max-width: 36rem;
  margin: var(--space-lg) 0 0;
  color: var(--color-paper-warm);
  font-size: var(--text-md);
  line-height: 1.75;
}

.tag-row,
.button-row,
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag-row {
  margin-block: var(--space-xl);
}

.tag {
  padding: var(--space-2xs) var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule);
  background-color: var(--color-paper-warm);
  color: var(--color-ink-strong);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.button {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.9rem 1.3rem;
  text-decoration: none;
}

.button-primary {
  border-color: var(--color-vermilion-deep);
  background-color: var(--color-vermilion);
  color: var(--color-accent-ink);
  box-shadow: 0.35rem 0.35rem 0 var(--color-lemon);
}

.button-primary::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 -48%;
  width: 38%;
  pointer-events: none;
  background-image: linear-gradient(110deg, var(--color-transparent), var(--color-sheen), var(--color-transparent));
  animation: button-sheen 3.8s var(--ease-in-out) infinite;
}

.button-secondary {
  border-color: var(--color-rule-warm);
  background-color: var(--color-paper-warm);
  color: var(--color-ink-strong);
}

.hero-proof {
  align-self: stretch;
  display: grid;
  align-content: end;
  gap: var(--space-sm);
}

.hero-poster {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: var(--rule-hair) solid var(--color-rule-warm);
  box-shadow: 1rem 1rem 0 color-mix(in oklch, var(--color-lemon) 74%, var(--color-transparent));
}

.hero-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.poster-badge {
  position: absolute;
  inset: var(--space-sm) var(--space-sm) auto auto;
  padding: var(--space-2xs) var(--space-xs);
  border: var(--rule-hair) solid var(--color-paper-warm);
  background-color: var(--color-vermilion);
  color: var(--color-accent-ink);
  font: 800 var(--text-xs)/1.5 var(--font-body);
}

.hero-caption {
  margin: 0;
  color: var(--color-paper-warm);
  font-size: var(--text-xs);
  text-align: end;
}

.info-ledger {
  position: relative;
  z-index: 2;
  margin-block-start: calc(var(--space-xl) * -1);
  display: grid;
  border: var(--rule-hair) solid var(--color-rule-warm);
  background-color: var(--color-paper-warm);
  box-shadow: 0 1.5rem 3rem var(--color-shadow-soft);
}

.info-item {
  min-width: 0;
  padding: var(--space-lg);
  border-bottom: var(--rule-hair) solid var(--color-rule-warm);
}

.info-item:last-child {
  border-bottom: 0;
}

.info-item p {
  margin: var(--space-xs) 0 0;
  color: var(--color-ink-strong);
  font-size: var(--text-md);
  font-weight: 800;
}

.section {
  position: relative;
  padding-block: clamp(var(--space-3xl), 9vw, var(--space-4xl));
}

.section-narrow {
  max-width: 64rem;
}

.mt-xl {
  margin-block-start: var(--space-xl);
}

.section-warm {
  background-color: var(--color-paper-warm);
  color: var(--color-ink);
}

.section-ink {
  background-color: var(--color-ink-strong);
  color: var(--color-paper);
}

.section-head {
  margin-block-end: var(--space-2xl);
  display: grid;
  gap: var(--space-md);
}

.section-kicker {
  margin: 0 0 var(--space-sm);
  color: var(--color-vermilion);
}

.section-head p,
.lede {
  max-width: 42rem;
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-md);
}

.section-ink .section-head p,
.section-ink .lede {
  color: var(--color-paper-deep);
}

.section-ink .section-kicker,
.section-ink .spread-media figcaption {
  color: var(--color-lemon);
}

.spread {
  display: grid;
  gap: var(--space-2xl);
  align-items: center;
}

.spread-copy {
  max-width: var(--content-copy);
}

.spread-copy p {
  margin: var(--space-lg) 0 0;
  font-size: var(--text-md);
}

.dropcap::first-letter {
  float: inline-start;
  margin: 0.16em var(--space-sm) 0 0;
  color: var(--color-vermilion);
  font-family: var(--font-display);
  font-size: 4.6em;
  font-weight: 900;
  line-height: 0.72;
}

.margin-note {
  margin-block-start: var(--space-xl);
  padding-inline-start: var(--space-md);
  border-inline-start: var(--rule-strong) solid var(--color-vermilion);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.spread-media {
  position: relative;
  min-width: 0;
  margin: 0;
}

.spread-media::before {
  content: "";
  position: absolute;
  inset: var(--space-sm) calc(var(--space-sm) * -1) calc(var(--space-sm) * -1) var(--space-sm);
  z-index: -1;
  border: var(--rule-hair) solid var(--color-vermilion);
}

.spread-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.spread-media figcaption,
.gallery-card figcaption {
  margin-block-start: var(--space-sm);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.feature-ledger {
  display: grid;
  border-top: var(--rule-strong) solid var(--color-ink-strong);
}

.feature-row {
  display: grid;
  gap: var(--space-md);
  padding-block: var(--space-xl);
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.feature-row h3 {
  font-size: var(--text-lg);
}

.feature-row p {
  margin: 0;
  color: var(--color-ink-soft);
}

.chapter-no {
  color: var(--color-vermilion);
}

.gallery-strip,
.gallery-grid,
.audience-grid,
.guide-grid,
.platform-grid,
.requirements-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-lg);
}

.gallery-card {
  min-width: 0;
  margin: 0;
}

.gallery-button {
  width: 100%;
  padding: 0;
  overflow: hidden;
  display: block;
  border-color: var(--color-rule);
  background-color: var(--color-paper-warm);
}

.gallery-button img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}

.gallery-card[hidden] {
  display: none;
}

.filter-tabs {
  margin-block-end: var(--space-xl);
}

.filter-tab {
  padding-inline: var(--space-md);
}

.filter-tab[aria-pressed="true"] {
  border-color: var(--color-vermilion);
  background-color: var(--color-vermilion);
  color: var(--color-accent-ink);
}

.filter-empty {
  padding: var(--space-2xl);
  border: var(--rule-hair) solid var(--color-rule);
  background-color: var(--color-paper-warm);
  text-align: start;
}

.filter-empty[hidden] {
  display: none;
}

.status-timeline {
  display: grid;
  gap: var(--space-xl);
}

.timeline-entry {
  position: relative;
  padding-inline-start: var(--space-xl);
}

.timeline-entry::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 var(--space-xs);
  width: var(--rule-hair);
  background-color: var(--color-rule);
}

.timeline-entry::after {
  content: "";
  position: absolute;
  inset: 0 auto auto var(--space-2xs);
  width: var(--space-xs);
  height: var(--space-xs);
  background-color: var(--color-vermilion);
  transform: rotate(45deg);
}

.timeline-entry p {
  margin: var(--space-xs) 0 0;
}

.audience-card,
.guide-card,
.platform-card,
.requirement-sheet {
  position: relative;
  padding: var(--space-xl);
  border-top: var(--rule-strong) solid var(--color-vermilion);
  background-color: var(--color-paper-warm);
  box-shadow: 0 0.75rem 2rem var(--color-shadow-soft);
}

.audience-card p,
.guide-card p,
.platform-card p,
.requirement-sheet p {
  margin: var(--space-sm) 0 0;
  color: var(--color-ink-soft);
}

.guide-card .button {
  margin-block-start: var(--space-lg);
}

.seal {
  width: 3.25rem;
  height: 3.25rem;
  margin-block-end: var(--space-lg);
  display: grid;
  place-items: center;
  border: var(--rule-strong) solid var(--color-vermilion);
  color: var(--color-vermilion);
  font: 900 var(--text-md)/1 var(--font-display);
  transform: rotate(-5deg);
}

.accordion {
  border-top: var(--rule-strong) solid var(--color-ink-strong);
}

.accordion-item {
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.accordion-trigger {
  width: 100%;
  min-height: 4.5rem;
  padding: var(--space-lg) 3.5rem var(--space-lg) 0;
  position: relative;
  border: 0;
  background-color: var(--color-transparent);
  color: var(--color-ink-strong);
  font-family: var(--font-display);
  font-size: var(--text-md);
  text-align: start;
}

.accordion-trigger::after {
  content: "+";
  position: absolute;
  inset: 50% var(--space-md) auto auto;
  color: var(--color-vermilion);
  font: 700 var(--text-xl)/1 var(--font-body);
  transform: translateY(-50%);
}

.accordion-trigger[aria-expanded="true"]::after {
  content: "−";
}

.accordion-panel {
  padding: 0 3.5rem var(--space-xl) 0;
}

.accordion-panel[hidden] {
  display: none;
}

.accordion-panel p {
  max-width: 50rem;
  margin: 0;
  color: var(--color-ink-soft);
}

.final-cta {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-3xl), 10vw, 8rem);
  border-block: var(--rule-strong) solid var(--color-ink-strong);
  background-color: var(--color-lemon);
  color: var(--color-ink-strong);
}

.final-cta::after {
  content: "II";
  position: absolute;
  inset: auto var(--page-gutter) -0.36em auto;
  color: color-mix(in oklch, var(--color-vermilion) 22%, var(--color-transparent));
  font: 900 clamp(9rem, 28vw, 24rem)/0.8 var(--font-display);
  pointer-events: none;
}

.final-cta-copy {
  position: relative;
  z-index: 1;
  max-width: 53rem;
}

.final-cta p {
  max-width: 40rem;
  margin: var(--space-lg) 0 var(--space-xl);
  font-size: var(--text-md);
}

.site-footer {
  padding-block: var(--space-3xl) calc(var(--space-3xl) + env(safe-area-inset-bottom));
  background-color: var(--color-ink-strong);
  color: var(--color-paper-warm);
}

.footer-grid {
  display: grid;
  gap: var(--space-2xl);
}

.footer-statement {
  max-width: 38ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  line-height: 1.5;
}

.footer-meta {
  display: grid;
  gap: var(--space-xl);
  font: 500 var(--text-sm)/1.8 var(--font-body);
}

.site-footer .wordmark {
  color: var(--color-paper-warm);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.footer-link {
  color: var(--color-paper-warm);
}

.footer-small {
  margin: 0;
  color: var(--color-paper-deep);
  font-size: var(--text-xs);
}

.sticky-download {
  position: fixed;
  inset: auto 0 0;
  z-index: 90;
  min-height: 4.75rem;
  padding: var(--space-sm) max(var(--space-md), env(safe-area-inset-right)) calc(var(--space-sm) + env(safe-area-inset-bottom)) max(var(--space-md), env(safe-area-inset-left));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  border-top: var(--rule-hair) solid var(--color-rule-warm);
  background-color: var(--color-paper-warm);
  color: var(--color-ink-strong);
  box-shadow: 0 -0.75rem 2rem var(--color-shadow-soft);
}

.sticky-download span {
  display: none;
  font-size: var(--text-sm);
  font-weight: 700;
}

.sticky-download .button {
  width: 100%;
}

.page-hero {
  padding-block: calc(var(--header-height) + var(--space-2xl)) var(--space-3xl);
  border-bottom: var(--rule-strong) solid var(--color-ink-strong);
  background-color: var(--color-paper-warm);
}

.page-hero-grid {
  display: grid;
  gap: var(--space-xl);
  align-items: end;
}

.page-hero h1 {
  max-width: 14ch;
  color: var(--color-ink-strong);
}

.page-hero p {
  max-width: 42rem;
  margin: 0;
  font-size: var(--text-md);
}

.chapter-index {
  position: sticky;
  inset-block-start: var(--header-height);
  z-index: 20;
  padding-block: var(--space-sm);
  overflow-x: auto;
  border-bottom: var(--rule-hair) solid var(--color-rule);
  background-color: var(--color-paper);
  scrollbar-width: thin;
}

.chapter-index nav {
  display: flex;
  gap: var(--space-lg);
}

.chapter-index a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  font-size: var(--text-sm);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.install-steps {
  counter-reset: install;
  display: grid;
  gap: var(--space-xl);
}

.install-step {
  counter-increment: install;
  position: relative;
  padding-inline-start: 4.5rem;
}

.install-step::before {
  content: "0" counter(install);
  position: absolute;
  inset: 0 auto auto 0;
  color: var(--color-vermilion);
  font: 900 var(--text-xl)/1 var(--font-body);
}

.install-step p {
  margin: var(--space-xs) 0 0;
}

.notice {
  padding: var(--space-xl);
  border-inline-start: var(--rule-strong) solid var(--color-vermilion);
  background-color: var(--color-paper-warm);
}

.notice p {
  margin: 0;
}

.guide-prose {
  max-width: 53rem;
}

.guide-prose h2 {
  margin-block: 0 var(--space-lg);
  font-size: clamp(2rem, 4vw, 3.25rem);
}

.guide-prose h3 {
  margin-block: var(--space-xl) var(--space-sm);
}

.guide-prose p,
.guide-prose li {
  font-size: var(--text-md);
}

.guide-prose ul,
.guide-prose ol {
  padding-inline-start: 1.35em;
}

.route-table {
  width: 100%;
  border-collapse: collapse;
  margin-block-start: var(--space-xl);
}

.route-table th,
.route-table td {
  padding: var(--space-md);
  border-bottom: var(--rule-hair) solid var(--color-rule);
  text-align: start;
  vertical-align: top;
}

.route-table th {
  color: var(--color-ink-strong);
  font-family: var(--font-display);
}

.route-table,
.route-table tbody,
.route-table tr,
.route-table td {
  display: block;
}

.route-table thead {
  display: none;
}

.route-table tr {
  padding-block: var(--space-sm);
  border-bottom: var(--rule-hair) solid var(--color-rule);
}

.route-table td {
  padding: var(--space-sm) 0;
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr);
  gap: var(--space-sm);
  border: 0;
}

.route-table td::before {
  content: attr(data-label);
  color: var(--color-ink-strong);
  font-weight: 800;
}

.lightbox {
  position: fixed;
  inset: 0;
  width: min(96%, 78rem);
  height: fit-content;
  max-height: 92dvh;
  margin: auto;
  padding: var(--space-md);
  overflow: auto;
  border: var(--rule-hair) solid var(--color-rule-warm);
  background-color: var(--color-ink-strong);
  color: var(--color-paper-warm);
  box-shadow: 0 2rem 5rem var(--color-shadow);
}

.lightbox::backdrop {
  background-color: var(--color-dialog-backdrop);
}

.lightbox-media {
  width: 100%;
  max-height: 75dvh;
  object-fit: contain;
}

.lightbox-bar {
  min-height: 3.5rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: var(--space-sm);
  align-items: center;
}

.lightbox-caption {
  margin: 0;
  padding-inline: var(--space-sm);
  overflow-wrap: anywhere;
  font-size: var(--text-sm);
}

.lightbox-control {
  width: 2.75rem;
  padding: 0;
  border-color: var(--color-rule);
}

.back-to-top {
  position: fixed;
  inset: auto var(--space-md) calc(5.75rem + env(safe-area-inset-bottom)) auto;
  z-index: 70;
  width: 2.75rem;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(var(--space-sm));
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(var(--space-md));
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@keyframes button-sheen {
  0%, 72% { transform: translateX(-120%) skewX(-16deg); }
  100% { transform: translateX(420%) skewX(-16deg); }
}

@media (hover: hover) and (pointer: fine) {
  button:hover,
  .button:hover,
  .is-hover-force {
    background-color: var(--color-paper-deep);
  }

  .button-primary:hover {
    background-color: var(--color-vermilion-deep);
  }

  .nav-link:hover {
    color: var(--color-vermilion);
  }

  .gallery-button:hover img,
  .gallery-button.is-hover-force img {
    transform: scale(1.018);
  }

  .audience-card:hover,
  .guide-card:hover,
  .platform-card:hover {
    transform: translateY(-2px);
  }
}

@media (min-width: 40rem) {
  .route-table {
    display: table;
  }

  .route-table thead {
    display: table-header-group;
  }

  .route-table tbody {
    display: table-row-group;
  }

  .route-table tr {
    display: table-row;
    padding: 0;
    border: 0;
  }

  .route-table td {
    display: table-cell;
    padding: var(--space-md);
    border-bottom: var(--rule-hair) solid var(--color-rule);
  }

  .route-table td::before {
    display: none;
  }

  .info-ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .info-item:nth-child(odd) {
    border-inline-end: var(--rule-hair) solid var(--color-rule-warm);
  }

  .info-item:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .gallery-strip,
  .gallery-grid,
  .audience-grid,
  .guide-grid,
  .platform-grid,
  .requirements-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-row {
    grid-template-columns: 4rem minmax(0, 0.85fr) minmax(0, 1.5fr);
    align-items: start;
  }

  .sticky-download span {
    display: inline;
  }

  .sticky-download .button {
    width: auto;
  }

  .page-hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }

  .section-head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
  }
}

@media (min-width: 60rem) {
  .nav-desktop {
    display: flex;
  }

  .menu-toggle,
  .mobile-sheet {
    display: none;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .hero-proof {
    align-content: center;
  }

  .info-ledger {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .info-item,
  .info-item:nth-last-child(-n + 2) {
    border-bottom: 0;
    border-inline-end: var(--rule-hair) solid var(--color-rule-warm);
  }

  .info-item:last-child {
    border-inline-end: 0;
  }

  .spread {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(var(--space-2xl), 7vw, 7rem);
  }

  .spread-reverse .spread-copy {
    order: 2;
  }

  .spread-reverse .spread-media {
    order: 1;
  }

  .gallery-strip,
  .gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .audience-grid,
  .guide-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  }
}

@media (min-width: 90rem) {
  .hero-copy {
    padding-inline-start: 5vw;
  }
}

@media (pointer: coarse) {
  button,
  .button,
  .nav-link,
  .filter-tab {
    min-height: 3rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: var(--dur-fast) !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: var(--dur-fast) !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}