/* Hallmark · macrostructure: Workbench · H2 split diptych knobs: ratio=7/5, right=photo, divider=negative-space
 * theme: custom · vibe: "海盐纸张 靛蓝夜景 珊瑚行动 暖金细线" · paper: oklch(98.8% 0.009 94) · accent: oklch(72% 0.17 20)
 * display: Noto Serif SC · body: Noto Sans SC · axes: light / roman-serif / warm
 * genre: atmospheric · enrichment: verified product stills · nav: N12 · footer: Ft5 · studied: no · context: explicit · v1.1.0
 * 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)
 * Hallmark · pre-emit critique: P5 H5 E4 S5 R4 V5
 */
@import url("../../tokens.css");

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; overflow-x: clip; }
html { scroll-behavior: smooth; scroll-padding-top: var(--space-4xl); }
body {
  min-width: 320px;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.has-modal { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: var(--rule-thin); text-underline-offset: 0.22em; }
a:active { color: var(--color-accent-strong); }
a[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
button, a { -webkit-tap-highlight-color: var(--color-transparent); }
button, input, select { font: inherit; }
:is(a, button, summary)[data-state="loading"] { cursor: progress; }
:is(a, button, summary)[data-state="error"] { outline: 3px solid var(--color-error); outline-offset: 3px; }
:is(a, button, summary)[data-state="success"] { outline: 3px solid var(--color-success); outline-offset: 3px; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
  line-height: 1.1;
}
h2 { margin-bottom: var(--space-md); font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.03em; }
h3 { margin-bottom: var(--space-sm); font-size: var(--text-xl); font-weight: 700; }
p { max-width: 72ch; }
[hidden] { display: none !important; }
.skip-link { position: fixed; top: var(--space-sm); left: var(--space-sm); z-index: 100; padding: var(--space-sm) var(--space-md); background: var(--color-paper); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.container { width: min(100% - var(--space-xl), 76rem); margin-inline: auto; }
.section { padding-block: var(--space-3xl); }
.section--night { color: var(--color-night-text); background: var(--color-night); }
.section--tint { background: var(--color-paper-2); }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); margin-bottom: var(--space-2xl); }
.section-head > * { min-width: 0; }
.section-head p { margin-bottom: 0; color: var(--color-muted); }
.section--night .section-head p { color: var(--color-night-muted); }
.eyebrow { margin-bottom: var(--space-sm); color: var(--color-accent-strong); font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }

.promo-bar { position: relative; z-index: 91; min-height: 2.25rem; display: grid; place-items: center; padding: var(--space-xs) var(--space-2xl); color: var(--color-accent-ink); background: var(--color-gold); font-size: var(--text-sm); font-weight: 700; text-align: center; transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out); }
.promo-bar.is-hidden { transform: translateY(-100%); opacity: 0; }
.promo-close { position: absolute; right: var(--space-sm); top: 50%; width: 2.75rem; height: 2rem; border: 0; color: inherit; background: var(--color-transparent); font-size: var(--text-xs); font-weight: 800; white-space: nowrap; transform: translateY(-50%); cursor: pointer; }
.promo-close:hover { color: var(--color-night); background: var(--color-gold-soft); }
.promo-close:active { transform: translateY(-50%) translateY(1px); }
.promo-close:disabled { opacity: 0.5; cursor: not-allowed; }
.site-header { position: sticky; top: 0; z-index: 90; color: var(--color-night-text); background: color-mix(in oklch, var(--color-night) 94%, var(--color-transparent)); border-bottom: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 38%, var(--color-transparent)); }
.nav { min-height: 4.5rem; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: var(--space-xl); align-items: center; }
.brand { display: inline-flex; align-items: center; gap: var(--space-sm); min-width: 0; text-decoration: none; }
.brand img { width: 2.25rem; height: 2.25rem; border-radius: var(--radius-sm); object-fit: cover; }
.brand-text { min-width: 0; font-family: var(--font-display); font-weight: 800; white-space: nowrap; }
.nav-links { display: flex; justify-content: center; gap: var(--space-lg); }
.nav-links a, .footer-links a { white-space: nowrap; text-decoration: none; }
.nav-links a { color: var(--color-night-muted); font-size: var(--text-sm); transition: color var(--dur-fast) var(--ease-out); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-night-text); }
.nav-links a:active { color: var(--color-gold); }
.menu-button { display: none; min-width: 2.75rem; min-height: 2.75rem; border: var(--rule-thin) solid var(--color-gold); border-radius: var(--radius-sm); color: var(--color-night-text); background: var(--color-night-2); cursor: pointer; }
.menu-button:hover { background: var(--color-night-3); }
.menu-button:active { transform: translateY(1px); }
.menu-button:disabled { opacity: 0.5; cursor: not-allowed; }

.button { position: relative; isolation: isolate; display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; gap: var(--space-sm); overflow: clip; border: var(--rule-medium) solid var(--color-accent); border-radius: var(--radius-sm); padding: var(--space-sm) var(--space-lg); color: var(--color-accent-ink); background: var(--color-accent); font-weight: 800; line-height: 1; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out); }
.button::after { content: ""; position: absolute; inset: -50% auto -50% -42%; z-index: -1; width: 28%; background: color-mix(in oklch, var(--color-paper) 70%, var(--color-transparent)); transform: skewX(-18deg) translateX(-220%); transition: transform var(--dur-slow) var(--ease-out); }
.button:hover::after { transform: skewX(-18deg) translateX(620%); }
.button:active, .button.is-active { background: var(--color-accent-strong); border-color: var(--color-accent-strong); }
a:focus-visible, .button:focus-visible, .promo-close:focus-visible, .menu-button:focus-visible, .gallery-card:focus-visible, .lightbox-close:focus-visible, .lightbox-nav:focus-visible, summary:focus-visible, .tab:focus-visible, .back-top:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; }
.button[aria-disabled="true"], .button:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.button[data-state="loading"] { color: var(--color-transparent); cursor: wait; }
.button[data-state="loading"]::before { content: ""; position: absolute; width: 1rem; height: 1rem; border: var(--rule-medium) solid var(--color-accent-ink); border-right-color: var(--color-transparent); border-radius: 50%; animation: spin 0.75s linear infinite; }
.button[data-state="error"] { color: var(--color-paper); background: var(--color-error); border-color: var(--color-error); }
.button[data-state="success"] { color: var(--color-paper); background: var(--color-success); border-color: var(--color-success); }
.button--secondary { color: var(--color-night-text); background: var(--color-transparent); border-color: var(--color-gold); }
.button--secondary:hover { color: var(--color-ink); background: var(--color-gold); }
.button--secondary::after { display: none; }
.button--small { min-height: 2.75rem; padding-inline: var(--space-md); font-size: var(--text-sm); }
.button--large { min-height: 3.75rem; padding-inline: var(--space-xl); font-size: var(--text-lg); }

.hero { position: relative; min-height: calc(100svh - 6.75rem); display: grid; align-items: center; overflow: clip; color: var(--color-night-text); background: var(--color-night); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(120deg, color-mix(in oklch, var(--color-night) 94%, var(--color-transparent)) 0 34%, color-mix(in oklch, var(--color-night) 67%, var(--color-transparent)) 62%, color-mix(in oklch, var(--color-night) 88%, var(--color-transparent)) 100%); z-index: 1; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 56% center; filter: saturate(0.84) contrast(1.06); transform: scale(1.035); animation: hero-drift 18s var(--ease-in-out) infinite alternate; }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 7fr) minmax(19rem, 5fr); gap: var(--space-2xl); align-items: end; padding-top: var(--space-3xl); padding-bottom: var(--space-4xl); }
.hero-copy { align-self: center; min-width: 0; }
.hero h1 { max-width: 12.5ch; margin-bottom: var(--space-lg); font-size: var(--text-display-s); font-weight: 900; letter-spacing: -0.055em; text-shadow: 0 0.14em 0.6em color-mix(in oklch, var(--color-night) 86%, var(--color-transparent)); }
.hero h1 small { display: block; margin-top: var(--space-sm); color: var(--color-gold-soft); font-family: var(--font-body); font-size: clamp(0.88rem, 1.4vw, 1.1rem); font-weight: 500; letter-spacing: 0.02em; line-height: 1.5; }
.hero-lede { max-width: 60ch; margin-bottom: var(--space-xl); color: var(--color-night-text); font-size: var(--text-lg); line-height: 1.8; }
.tag-row, .cta-row { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.tag-row { margin-bottom: var(--space-lg); }
.tag { display: inline-flex; min-height: 2rem; align-items: center; border: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 70%, var(--color-transparent)); padding: var(--space-2xs) var(--space-sm); color: var(--color-gold-soft); background: color-mix(in oklch, var(--color-night) 80%, var(--color-transparent)); font-size: var(--text-xs); font-weight: 700; white-space: nowrap; }
.dialogue-box { align-self: end; border: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 60%, var(--color-transparent)); border-top: var(--rule-medium) solid var(--color-gold); padding: var(--space-lg); background: color-mix(in oklch, var(--color-night) 90%, var(--color-transparent)); box-shadow: 0 1.25rem 3rem color-mix(in oklch, var(--color-night) 55%, var(--color-transparent)); }
.dialogue-speaker { margin-bottom: var(--space-xs); color: var(--color-gold); font-family: var(--font-display); font-weight: 800; }
.dialogue-box p { margin-bottom: var(--space-md); color: var(--color-night-muted); }
.choice-list { display: grid; gap: var(--space-sm); }

.info-strip { position: relative; z-index: 4; margin-top: calc(-1 * var(--space-lg)); }
.page-hero { position: relative; overflow: clip; padding-top: var(--space-3xl); padding-bottom: var(--space-4xl); color: var(--color-night-text); background: var(--color-night); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(17rem, 0.9fr); gap: var(--space-3xl); align-items: end; }
.page-hero h1 { max-width: 15ch; margin-bottom: var(--space-lg); font-size: var(--text-3xl); font-weight: 900; letter-spacing: -0.045em; }
.page-hero p { color: var(--color-night-muted); font-size: var(--text-lg); }
.page-hero img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-bottom: 0.3rem solid var(--color-gold); }
.info-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); color: var(--color-night-text); background: var(--color-night-2); box-shadow: 0 1.25rem 2.5rem color-mix(in oklch, var(--color-night) 18%, var(--color-transparent)); }
.info-item { min-width: 0; padding: var(--space-lg); border-right: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 25%, var(--color-transparent)); }
.info-item:last-child { border-right: 0; }
.info-label { display: block; color: var(--color-gold); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; }
.info-value { display: block; margin-top: var(--space-xs); overflow-wrap: anywhere; font-weight: 700; line-height: 1.45; }

.story-layout { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: var(--space-3xl); align-items: center; }
.story-visual { position: relative; min-width: 0; }
.story-visual img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-sm); }
.story-visual figcaption { margin-top: var(--space-sm); color: var(--color-muted); font-size: var(--text-sm); }
.story-copy p { font-size: var(--text-lg); }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
.feature-card { min-width: 0; border-top: var(--rule-medium) solid var(--color-gold); padding: var(--space-xl); color: var(--color-night-text); background: var(--color-night-2); transition: box-shadow var(--dur-base) var(--ease-out); }
.feature-card:hover { box-shadow: 0 1rem 2rem color-mix(in oklch, var(--color-night) 45%, var(--color-transparent)); }
.feature-card p { margin-bottom: 0; color: var(--color-night-muted); }
.feature-index { display: block; margin-bottom: var(--space-lg); color: var(--color-gold); font-family: var(--font-mono); font-size: var(--text-sm); }

.workbench { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(18rem, 0.45fr); gap: var(--space-xl); align-items: start; }
.workbench-main { position: relative; min-width: 0; }
.workbench-main img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: var(--color-night); }
.callout-pin { position: absolute; display: grid; width: 2rem; height: 2rem; place-items: center; border: var(--rule-medium) solid var(--color-paper); border-radius: 50%; color: var(--color-accent-ink); background: var(--color-gold); font-family: var(--font-mono); font-weight: 800; }
.pin-one { top: 13%; right: 18%; }
.pin-two { bottom: 18%; left: 27%; }
.pin-three { bottom: 10%; right: 9%; }
.annotation-list { display: grid; gap: var(--space-md); margin: 0; padding: 0; list-style: none; }
.annotation-list li { border-top: var(--rule-thin) solid var(--color-rule); padding-top: var(--space-md); }
.annotation-number { display: inline-grid; width: 1.8rem; height: 1.8rem; place-items: center; margin-right: var(--space-sm); border-radius: 50%; color: var(--color-accent-ink); background: var(--color-gold); font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 800; }

.gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-md); }
.gallery-card { position: relative; min-width: 0; overflow: clip; border: 0; padding: 0; background: var(--color-night-2); cursor: zoom-in; }
.gallery-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.gallery-card:hover img { transform: scale(1.025); }
.gallery-card:active { transform: translateY(1px); }
.gallery-card:disabled { opacity: 0.5; cursor: not-allowed; }
.gallery-card span { position: absolute; inset: auto 0 0; padding: var(--space-lg) var(--space-md) var(--space-sm); color: var(--color-night-text); background: linear-gradient(var(--color-transparent), color-mix(in oklch, var(--color-night) 94%, var(--color-transparent))); font-size: var(--text-sm); text-align: left; }
.gallery-actions { margin-top: var(--space-xl); }
.tabs { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-xl); }
.tab { min-height: 2.75rem; border: var(--rule-thin) solid var(--color-rule); border-radius: var(--radius-sm); padding-inline: var(--space-md); color: var(--color-ink); background: var(--color-paper); font-weight: 700; cursor: pointer; transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out); }
.tab:hover, .tab[aria-selected="true"] { color: var(--color-night-text); background: var(--color-night-2); }
.tab:active { transform: translateY(1px); }
.tab:disabled { opacity: 0.5; cursor: not-allowed; }

.spec-table { border-top: var(--rule-medium) solid var(--color-ink); }
.spec-row { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-lg); padding-block: var(--space-md); border-bottom: var(--rule-thin) solid var(--color-rule); }
.spec-row dt { color: var(--color-muted); }
.spec-row dd { margin: 0; font-weight: 700; }
.timeline { position: relative; display: grid; gap: var(--space-lg); padding-left: var(--space-xl); }
.timeline::before { content: ""; position: absolute; top: 0.65rem; bottom: 0.65rem; left: 0.3rem; width: var(--rule-thin); background: var(--color-rule); }
.timeline-item { position: relative; }
.timeline-item::before { content: ""; position: absolute; top: 0.5rem; left: calc(-1 * var(--space-xl) + 0.01rem); width: 0.6rem; height: 0.6rem; border-radius: 50%; background: var(--color-accent); }
.timeline time { color: var(--color-muted); font-family: var(--font-mono); font-size: var(--text-sm); }

.fit-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-md); }
.fit-card { min-width: 0; padding: var(--space-xl); background: var(--color-paper); border-bottom: 0.25rem solid var(--color-sea); }
.fit-card p { margin-bottom: 0; color: var(--color-muted); }
.accordion { border-top: var(--rule-medium) solid var(--color-ink); }
.accordion details { border-bottom: var(--rule-thin) solid var(--color-rule); }
.accordion summary { min-height: 4.25rem; display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); padding: var(--space-md) 0; font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; cursor: pointer; list-style: none; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary:hover { color: var(--color-accent-strong); }
.accordion summary:active { transform: translateY(1px); }
.accordion summary[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
.accordion summary::after { content: "+"; color: var(--color-accent-strong); font-family: var(--font-mono); font-size: 1.5rem; }
.accordion details[open] summary::after { content: "−"; }
.accordion .answer { max-width: 68ch; padding: 0 var(--space-2xl) var(--space-lg) 0; color: var(--color-muted); }

.download-panel { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-xl); align-items: center; padding: var(--space-2xl); color: var(--color-night-text); background: var(--color-night-2); border: var(--rule-thin) solid var(--color-gold); }
.download-panel p { margin-bottom: 0; color: var(--color-night-muted); }
.download-panel .button { min-width: 14rem; }
.step-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-xl); counter-reset: steps; }
.step { min-width: 0; border-top: var(--rule-medium) solid var(--color-sea); padding-top: var(--space-lg); counter-increment: steps; }
.step::before { content: "0" counter(steps); display: block; margin-bottom: var(--space-lg); color: var(--color-sea-strong); font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 800; }

.guide-layout { display: grid; grid-template-columns: minmax(13rem, 0.3fr) minmax(0, 0.7fr); gap: var(--space-3xl); align-items: start; }
.toc { position: sticky; top: 6rem; border-top: var(--rule-medium) solid var(--color-gold); padding-top: var(--space-md); }
.toc a { display: block; min-height: 2.75rem; padding: var(--space-xs) 0; text-decoration: none; }
.guide-article section { padding-bottom: var(--space-3xl); }
.guide-article li + li { margin-top: var(--space-xs); }
.guide-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-md); }
.guide-card { min-width: 0; padding: var(--space-xl); border-top: 0.25rem solid var(--color-gold); background: var(--color-paper-2); }
.guide-card a { font-weight: 800; }

.final-cta { position: relative; overflow: clip; color: var(--color-night-text); background: var(--color-night); text-align: center; }
.final-cta .container { display: grid; justify-items: center; }
.final-cta h2 { max-width: 17ch; font-size: var(--text-3xl); }
.final-cta p { color: var(--color-night-muted); }
.final-note { margin-top: var(--space-lg); font-size: var(--text-sm); }
.site-footer { padding-block: var(--space-3xl) calc(var(--space-3xl) + var(--space-3xl)); color: var(--color-night-text); background: var(--color-night-2); }
.footer-statement { max-width: 24ch; margin-bottom: var(--space-2xl); color: var(--color-gold-soft); font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 800; line-height: 1.25; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: var(--space-2xl); padding-top: var(--space-xl); border-top: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 25%, var(--color-transparent)); }
.footer-meta p { color: var(--color-night-muted); font-size: var(--text-sm); }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-xs) var(--space-lg); }
.footer-links a { color: var(--color-night-muted); font-size: var(--text-sm); }
.footer-links a:hover { color: var(--color-night-text); }
.sticky-download { position: fixed; z-index: 80; inset: auto 0 0; min-height: 4.25rem; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-md); align-items: center; padding: var(--space-sm) max(var(--space-md), calc((100vw - 76rem) / 2)); color: var(--color-night-text); background: color-mix(in oklch, var(--color-night) 96%, var(--color-transparent)); border-top: var(--rule-thin) solid var(--color-gold); }
.sticky-download p { margin: 0; overflow: hidden; text-overflow: ellipsis; color: var(--color-night-muted); font-size: var(--text-sm); white-space: nowrap; }
.back-top { position: fixed; right: var(--space-md); bottom: 5.5rem; z-index: 79; width: 2.75rem; height: 2.75rem; border: var(--rule-thin) solid var(--color-gold); border-radius: var(--radius-sm); color: var(--color-night-text); background: var(--color-night-2); cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(0.75rem); transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
.back-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover, .lightbox-close:hover, .lightbox-nav:hover { color: var(--color-ink); background: var(--color-gold); }
.back-top:active, .lightbox-close:active, .lightbox-nav:active { transform: translateY(1px); }
.back-top:disabled, .lightbox-close:disabled, .lightbox-nav:disabled { opacity: 0.5; cursor: not-allowed; }

.lightbox { position: fixed; inset: 0; z-index: 120; display: grid; place-items: center; padding: var(--space-lg); color: var(--color-night-text); background: color-mix(in oklch, var(--color-night) 96%, var(--color-transparent)); opacity: 0; pointer-events: none; transition: opacity var(--dur-base) var(--ease-out); }
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox-figure { max-width: min(90rem, 92vw); margin: 0; }
.lightbox img { max-height: 82vh; width: auto; margin-inline: auto; }
.lightbox figcaption { margin-top: var(--space-sm); text-align: center; }
.lightbox-close, .lightbox-nav { position: absolute; display: grid; place-items: center; border: var(--rule-thin) solid var(--color-gold); border-radius: var(--radius-sm); color: var(--color-night-text); background: var(--color-night-2); cursor: pointer; }
.lightbox-close { top: var(--space-lg); right: var(--space-lg); width: 3rem; height: 3rem; }
.lightbox-nav { top: 50%; width: 3.25rem; height: 3.25rem; transform: translateY(-50%); }
.lightbox-prev { left: var(--space-lg); }
.lightbox-next { right: var(--space-lg); }

@keyframes hero-drift { from { transform: scale(1.02); } to { transform: scale(1.05); } }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 64rem) {
  .nav-links { display: none; position: absolute; top: 100%; left: var(--space-md); right: var(--space-md); padding: var(--space-md); background: var(--color-night-2); border: var(--rule-thin) solid var(--color-gold); }
  .nav-links.is-open { display: grid; }
  .nav { grid-template-columns: minmax(0, 1fr) auto auto; }
  .menu-button { display: inline-grid; place-items: center; }
  .hero-grid, .story-layout, .workbench, .guide-layout, .page-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .dialogue-box { max-width: 34rem; }
  .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .info-item:nth-child(2) { border-right: 0; }
  .info-item:nth-child(-n+2) { border-bottom: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 25%, var(--color-transparent)); }
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toc { position: static; }
}

@media (max-width: 48rem) {
  .section { padding-block: var(--space-2xl); }
  .section-head { grid-template-columns: minmax(0, 1fr); gap: var(--space-sm); }
  .hero { min-height: auto; }
  .hero::before { background: linear-gradient(180deg, color-mix(in oklch, var(--color-night) 55%, var(--color-transparent)), color-mix(in oklch, var(--color-night) 96%, var(--color-transparent)) 58%); }
  .hero-bg { object-position: 58% center; animation: none; transform: scale(1.02); }
  .hero-grid { gap: var(--space-xl); padding-top: calc(var(--space-4xl) * 2); }
  .hero h1 { font-size: clamp(2.25rem, 11vw, 4rem); }
  .feature-grid, .fit-grid, .step-grid, .guide-card-grid { grid-template-columns: minmax(0, 1fr); }
  .download-panel { grid-template-columns: minmax(0, 1fr); padding: var(--space-xl); }
  .download-panel .button { width: 100%; min-width: 0; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-links { grid-template-columns: minmax(0, 1fr); }
  .sticky-download p { display: none; }
  .sticky-download { grid-template-columns: minmax(0, 1fr); }
  .sticky-download .button { width: 100%; }
  .sticky-download .button { color: var(--color-accent-ink); background: var(--color-gold); border-color: var(--color-gold); }
  .lightbox-nav { top: auto; bottom: var(--space-lg); transform: none; }
}

@media (max-width: 40rem) {
  .container { width: min(100% - 2rem, 76rem); }
  .promo-bar { font-size: 0.75rem; }
  .brand-text { max-width: 9.5rem; overflow: hidden; text-overflow: ellipsis; }
  .nav > .button { display: none; }
  .nav { grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-sm); }
  .info-grid, .gallery-grid { grid-template-columns: minmax(0, 1fr); }
  .info-item, .info-item:nth-child(2) { border-right: 0; border-bottom: var(--rule-thin) solid color-mix(in oklch, var(--color-gold) 25%, var(--color-transparent)); }
  .info-item:last-child { border-bottom: 0; }
  .gallery-card span { position: static; display: block; background: var(--color-night-2); }
  .spec-row { grid-template-columns: minmax(0, 1fr); gap: var(--space-2xs); }
  .tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tab { width: 100%; }
  .cta-row .button { width: 100%; }
  .lightbox { padding: var(--space-sm); }
  .lightbox-close { top: var(--space-sm); right: var(--space-sm); }
  .lightbox-prev { left: var(--space-sm); }
  .lightbox-next { right: var(--space-sm); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: 1ms !important; }
}