/* Hallmark · genre: atmospheric · macrostructure: Long Document / Photographic · theme: Midnight · enrichment: Tier B · nav: N5 · footer: Ft5 */
/* Hallmark · pre-emit critique: P5 H4 E5 S4 R5 V5 */
:root {
  --color-ink: #080b12;
  --color-ink-2: #0d121d;
  --color-paper: #111827;
  --color-paper-2: #172235;
  --color-paper-3: #1d2a41;
  --color-text: #f1eee8;
  --color-muted: #a9b2c3;
  --color-dim: #707d91;
  --color-accent: #ff7567;
  --color-accent-strong: #ff4f63;
  --color-cyan: #9de8e1;
  --color-line: rgba(241, 238, 232, 0.14);
  --color-focus: #9de8e1;
  --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.32);
  --shadow-glow: 0 18px 60px rgba(255, 117, 103, 0.22);
  --radius-sm: 0.55rem;
  --radius-md: 1rem;
  --radius-lg: 1.6rem;
  --font-body: "Noto Sans SC", system-ui, sans-serif;
  --font-display: "Space Grotesk", "Noto Sans SC", system-ui, sans-serif;
  --space-1: clamp(0.5rem, 1vw, 0.75rem);
  --space-2: clamp(0.8rem, 1.5vw, 1.2rem);
  --space-3: clamp(1.2rem, 2vw, 1.8rem);
  --space-4: clamp(1.8rem, 4vw, 3.5rem);
  --space-5: clamp(3rem, 7vw, 7rem);
  --content: 74rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: clip;
  background-image: radial-gradient(circle at 80% 0%, rgba(255, 117, 103, 0.13), transparent 27rem), radial-gradient(circle at 8% 38%, rgba(157, 232, 225, 0.08), transparent 25rem);
}
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: 0.055; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E"); mix-blend-mode: screen; z-index: 10; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
h1, h2, h3, p { margin-block: 0; }
h1, h2, h3 { font-family: var(--font-display); font-style: normal; line-height: 1.08; letter-spacing: -0.035em; overflow-wrap: anywhere; }
h1 { font-size: clamp(3.2rem, 9vw, 7.8rem); max-width: 10ch; }
h2 { font-size: clamp(2.2rem, 5vw, 4.4rem); max-width: 13ch; }
h3 { font-size: clamp(1.05rem, 1.7vw, 1.35rem); }
.wrap { width: min(100% - 2rem, var(--content)); margin-inline: auto; }
.eyebrow, .kicker, .section-label { color: var(--color-cyan); font: 600 0.72rem/1 var(--font-display); letter-spacing: 0.14em; text-transform: uppercase; }
.muted { color: var(--color-muted); }
.dim { color: var(--color-dim); }
.small { font-size: 0.8rem; }
.site-nav { position: fixed; inset: 1rem 1rem auto; z-index: 20; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.65rem 0.75rem 0.65rem 1rem; border: 1px solid var(--color-line); border-radius: 999px; background: rgba(13, 18, 29, 0.82); backdrop-filter: blur(18px); box-shadow: var(--shadow-soft); }
.brand { display: inline-flex; align-items: center; gap: 0.65rem; min-width: 0; white-space: nowrap; font-family: var(--font-display); font-weight: 700; }
.brand img { width: 3.4rem; height: 2rem; border-radius: 0.35rem; object-fit: contain; }
.nav-links { display: flex; align-items: center; gap: 0.15rem; }
.nav-links a { padding: 0.5rem 0.8rem; border-radius: 999px; color: var(--color-muted); font-size: 0.85rem; white-space: nowrap; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-text); background: var(--color-paper-3); }
.nav-links .btn { margin-inline-start: 0.35rem; }
.nav-toggle { display: none; border: 0; color: var(--color-text); background: transparent; cursor: pointer; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem; min-height: 3rem; padding: 0.72rem 1.15rem; border: 1px solid var(--color-line); border-radius: 999px; background: transparent; color: var(--color-text); cursor: pointer; font-weight: 700; white-space: nowrap; transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease; }
.btn:hover { transform: translateY(-2px); border-color: var(--color-cyan); }
.btn:focus-visible, button:focus-visible, a:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
.btn-primary { position: relative; overflow: hidden; border-color: var(--color-accent); background: var(--color-accent); color: var(--color-ink); box-shadow: var(--shadow-glow); }
.btn-primary::after { content: ""; position: absolute; inset: 0 auto 0 -35%; width: 25%; transform: skewX(-20deg); background: rgba(241, 238, 232, 0.55); filter: blur(8px); animation: shine 3.2s ease-in-out infinite; }
.btn-primary:hover { border-color: var(--color-accent-strong); background: var(--color-accent-strong); color: var(--color-ink); box-shadow: 0 20px 70px rgba(255, 79, 99, 0.32); }
@keyframes shine { 0%, 45% { left: -35%; opacity: 0; } 58% { opacity: 0.9; } 75%, 100% { left: 135%; opacity: 0; } }
.hero { position: relative; min-height: 100svh; display: grid; align-items: end; isolation: isolate; overflow: clip; padding-block: 8rem 3.5rem; }
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 28%; filter: saturate(0.85) contrast(1.04); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(8, 11, 18, 0.96) 0%, rgba(8, 11, 18, 0.77) 48%, rgba(8, 11, 18, 0.56) 100%), linear-gradient(0deg, var(--color-ink) 0%, transparent 35%); }
.hero-content { display: grid; gap: var(--space-4); align-items: end; }
.hero-copy { max-width: 44rem; }
.hero-copy .kicker { margin-block-end: var(--space-2); }
.hero-copy h1 { margin-block: 0.4rem 1.1rem; }
.hero-copy h1 span { display: block; color: var(--color-cyan); font: 600 clamp(1rem, 1.7vw, 1.35rem)/1 var(--font-display); letter-spacing: 0.18em; text-transform: uppercase; }
.hero-lead { max-width: 39rem; font-size: clamp(1.05rem, 2vw, 1.35rem); color: var(--color-text); }
.hero-note { max-width: 40rem; margin-block-start: 0.65rem; color: var(--color-muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-block-start: var(--space-3); }
.signal-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-block-start: var(--space-3); }
.signal { padding: 0.45rem 0.7rem; border: 1px solid var(--color-line); border-radius: 999px; color: var(--color-muted); background: rgba(17, 24, 39, 0.72); font-size: 0.78rem; white-space: nowrap; }
.section { padding-block: var(--space-5); }
.section.alt { background: var(--color-ink-2); }
.section-head { display: grid; grid-template-columns: minmax(0, 0.6fr) minmax(0, 1.4fr); gap: var(--space-4); align-items: end; margin-block-end: var(--space-4); }
.section-head > div:last-child { max-width: 48rem; }
.section-head h2 { margin-block-start: 0.55rem; }
.section-head p { max-width: 46rem; }
.info-rail { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.info-cell { min-width: 0; padding: 1.3rem 1rem 1.3rem 0; border-inline-end: 1px solid var(--color-line); }
.info-cell:not(:first-child) { padding-inline-start: 1rem; }
.info-cell:last-child { border-inline-end: 0; }
.info-cell strong { display: block; margin-block-start: 0.45rem; font-family: var(--font-display); font-size: 1.05rem; overflow-wrap: anywhere; }
.note-tag { display: inline-block; margin-block-start: 0.45rem; color: var(--color-dim); font-size: 0.7rem; }
.story-layout { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-5); align-items: start; }
.story-stamp { position: sticky; top: 6rem; padding: 1.2rem; border-inline-start: 2px solid var(--color-accent); color: var(--color-muted); }
.story-copy { display: grid; gap: 1.4rem; max-width: 58rem; font-size: 1.08rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; overflow: clip; border: 1px solid var(--color-line); background: var(--color-line); }
.feature-card { min-width: 0; padding: 1.5rem; background: var(--color-paper); transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease; }
.feature-card:hover { position: relative; z-index: 1; transform: translateY(-4px); background: var(--color-paper-2); box-shadow: var(--shadow-glow); }
.feature-mark { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; margin-block-end: 2.8rem; border: 1px solid var(--color-line); border-radius: 50%; color: var(--color-accent); font-family: var(--font-display); }
.feature-card h3 { margin-block-end: 0.5rem; }
.gallery-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1rem; }
.gallery-card { position: relative; min-width: 0; overflow: clip; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: var(--color-paper); cursor: pointer; text-align: start; transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease; }
.gallery-card:nth-child(1) { grid-column: span 7; }
.gallery-card:nth-child(2) { grid-column: span 5; }
.gallery-card:nth-child(3) { grid-column: span 5; }
.gallery-card:nth-child(4) { grid-column: span 7; }
.gallery-card:hover { transform: translateY(-3px); border-color: var(--color-cyan); box-shadow: var(--shadow-soft); }
.gallery-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; transition: transform 250ms ease, filter 250ms ease; }
.gallery-card:hover img { transform: scale(1.025); filter: saturate(1.08); }
.gallery-card figcaption { padding: 0.85rem 1rem; color: var(--color-muted); font-size: 0.82rem; }
.cta-panel { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-3); align-items: center; padding: clamp(1.4rem, 4vw, 3.5rem); border: 1px solid var(--color-accent); border-radius: var(--radius-lg); background: linear-gradient(115deg, var(--color-paper-2), var(--color-paper)); box-shadow: var(--shadow-glow); }
.cta-panel h2 { max-width: 11ch; }
.timeline { display: grid; gap: 0; border-top: 1px solid var(--color-line); }
.timeline-item { display: grid; grid-template-columns: 10rem minmax(0, 1fr); gap: var(--space-3); padding-block: 1.4rem; border-bottom: 1px solid var(--color-line); }
.timeline-item time { color: var(--color-accent); font: 600 0.8rem/1.5 var(--font-display); letter-spacing: 0.08em; text-transform: uppercase; }
.timeline-item h3 { margin-block-end: 0.35rem; }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.review-card { min-width: 0; padding: 1.35rem; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: var(--color-paper); }
.review-card p:first-child { color: var(--color-text); }
.review-card p:last-child { margin-block-start: 1.2rem; }
.faq-list { display: grid; gap: 0.7rem; max-width: 60rem; }
.faq-item { border: 1px solid var(--color-line); border-radius: var(--radius-sm); background: var(--color-paper); }
.faq-question { width: 100%; display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding: 1rem 1.1rem; border: 0; background: transparent; color: var(--color-text); cursor: pointer; text-align: start; }
.faq-question span:first-child { min-width: 0; }
.faq-icon { flex: 0 0 auto; color: var(--color-accent); font: 700 1.2rem/1 var(--font-display); }
.faq-answer { display: none; padding: 0 1.1rem 1.15rem; color: var(--color-muted); }
.faq-item.is-open .faq-answer { display: block; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); }
.footer { padding-block: 3rem 5rem; border-top: 1px solid var(--color-line); background: var(--color-ink-2); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 1.4fr; gap: var(--space-4); }
.footer h3 { margin-block-end: 0.8rem; font-size: 1rem; }
.footer-links { display: grid; gap: 0.4rem; color: var(--color-muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--color-cyan); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-block-start: 2.5rem; padding-block-start: 1.2rem; border-top: 1px solid var(--color-line); color: var(--color-dim); font-size: 0.78rem; }
.page-hero { padding-block: 10rem 4rem; background: linear-gradient(120deg, var(--color-paper), var(--color-ink)); }
.page-hero h1 { max-width: 14ch; margin-block: 0.6rem 1rem; }
.page-hero p { max-width: 52rem; color: var(--color-muted); font-size: 1.05rem; }
.tab-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-block-end: 1.3rem; }
.filter-tab { border: 1px solid var(--color-line); border-radius: 999px; padding: 0.55rem 0.9rem; background: transparent; color: var(--color-muted); cursor: pointer; white-space: nowrap; }
.filter-tab.is-active, .filter-tab:hover { border-color: var(--color-cyan); color: var(--color-text); background: var(--color-paper-2); }
.guide-layout { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: var(--space-5); align-items: start; }
.toc { position: sticky; top: 6rem; display: grid; gap: 0.45rem; padding-inline-start: 1rem; border-inline-start: 1px solid var(--color-line); }
.toc a { color: var(--color-muted); font-size: 0.9rem; }
.toc a:hover { color: var(--color-cyan); }
.guide-content { min-width: 0; max-width: 60rem; }
.guide-section { padding-block: 0 3.2rem; scroll-margin-top: 6rem; }
.guide-section h2 { max-width: none; margin-block-end: 0.8rem; }
.guide-section h3 { margin-block: 1.8rem 0.55rem; }
.guide-section p { margin-block-end: 1rem; color: var(--color-muted); }
.checklist { display: grid; gap: 0.55rem; margin: 1rem 0; padding: 0; list-style: none; }
.checklist li { padding: 0.7rem 0.9rem; border-inline-start: 2px solid var(--color-accent); background: var(--color-paper); color: var(--color-muted); }
.data-table { width: 100%; border-collapse: collapse; margin-block: 1rem; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 0.8rem; border-bottom: 1px solid var(--color-line); text-align: start; vertical-align: top; }
.data-table th { color: var(--color-text); font-weight: 700; }
.data-table td { color: var(--color-muted); }
.platform-grid, .requirements { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.platform-card, .requirement-card, .article-card { min-width: 0; padding: 1.35rem; border: 1px solid var(--color-line); border-radius: var(--radius-md); background: var(--color-paper); }
.platform-card h2, .requirement-card h2 { max-width: none; margin-block: 0.5rem; font-size: 1.35rem; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; counter-reset: step; }
.step { position: relative; padding: 1.35rem; border-top: 2px solid var(--color-accent); background: var(--color-paper); }
.step::before { counter-increment: step; content: "0" counter(step); color: var(--color-accent); font: 700 0.78rem/1 var(--font-display); letter-spacing: 0.1em; }
.step h3 { margin-block: 1.5rem 0.5rem; }
.article-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.article-card h2 { max-width: none; margin-block: 0.65rem; font-size: 1.35rem; }
.article-card p { color: var(--color-muted); }
.article-card .btn { margin-block-start: 1rem; min-height: 2.5rem; font-size: 0.85rem; }
.article-body { max-width: 58rem; }
.article-body h2 { max-width: none; margin-block: 2.5rem 0.8rem; font-size: 2rem; }
.article-body p { margin-block-end: 1rem; color: var(--color-muted); }
.article-body ul, .article-body ol { color: var(--color-muted); }
.article-body li { margin-block: 0.35rem; }
.source-note { margin-block-start: 1.5rem; padding: 0.9rem 1rem; border: 1px solid var(--color-line); border-radius: var(--radius-sm); color: var(--color-dim); font-size: 0.78rem; }
.lightbox { position: fixed; inset: 0; z-index: 40; display: none; place-items: center; gap: 1rem; padding: 1.5rem; background: rgba(8, 11, 18, 0.94); }
.lightbox.is-open { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; }
.lightbox img { width: min(85vw, 72rem); height: min(82svh, 44rem); object-fit: contain; }
.lightbox-close { position: absolute; inset: 1rem 1rem auto auto; }
.lightbox-control { min-width: 3rem; min-height: 3rem; border: 1px solid var(--color-line); border-radius: 50%; background: var(--color-paper); color: var(--color-text); cursor: pointer; }
.modal-note { display: none; }
@media (hover: hover) and (pointer: fine) { .gallery-card:hover, .feature-card:hover, .btn:hover { will-change: transform; } }
@media (min-width: 40rem) { .wrap { width: min(100% - 3rem, var(--content)); } .hero { padding-block-end: 5rem; } }
@media (max-width: 60rem) { .nav-links a:not(.btn) { display: none; } .nav-toggle { display: block; } .nav-links.is-open { position: absolute; inset: 4rem 0 auto; display: grid; padding: 0.6rem; border: 1px solid var(--color-line); border-radius: 1rem; background: var(--color-paper); } .nav-links.is-open a:not(.btn) { display: block; } .nav-links.is-open .btn { margin: 0.3rem 0 0; } }
@media (max-width: 48rem) { .section-head, .story-layout, .cta-panel, .guide-layout, .footer-grid { grid-template-columns: 1fr; } .story-stamp, .toc { position: static; } .info-rail { grid-template-columns: repeat(2, minmax(0, 1fr)); } .info-cell:nth-child(2) { border-inline-end: 0; } .info-cell:nth-child(3), .info-cell:nth-child(4) { border-top: 1px solid var(--color-line); } .info-cell:nth-child(3) { padding-inline-start: 0; } .feature-grid, .review-grid, .platform-grid, .requirements, .steps, .article-grid { grid-template-columns: 1fr; } .gallery-card:nth-child(n) { grid-column: span 12; } .footer-bottom { align-items: flex-start; flex-direction: column; } }
@media (max-width: 40rem) { .wrap { width: min(100% - 2rem, var(--content)); } .site-nav { inset: 0.7rem 0.7rem auto; } .nav-inner { padding-inline: 0.8rem; } .hero { min-height: 100svh; padding-block: 7.5rem 2.5rem; } .hero-copy h1 { font-size: clamp(3rem, 16vw, 5.4rem); } .hero-actions .btn { flex: 1 1 auto; } .section { padding-block: 4.5rem; } .timeline-item { grid-template-columns: 1fr; gap: 0.35rem; } .lightbox.is-open { grid-template-columns: 1fr; } .lightbox-control { position: absolute; bottom: 1rem; } .lightbox-control.prev { left: 1rem; } .lightbox-control.next { right: 1rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }