/* The Forty-Seven — Magpul Ronin Project Archive
   Dark industrial museum. No framework. */

:root {
  --bg: #0a0a0b;
  --bg-2: #111113;
  --bg-3: #18181b;
  --bg-4: #1f1f23;
  --text: #ece8e1;
  --muted: #9a948a;
  --faint: #6b665e;
  --accent: #c45c5c;
  --accent-soft: rgba(196, 92, 92, 0.16);
  --line: rgba(236, 232, 225, 0.1);
  --line-strong: rgba(236, 232, 225, 0.18);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --font-display: "Oswald", "Impact", "Arial Narrow", sans-serif;
  --font-body: "Barlow", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-quote: "Cormorant Garamond", "Palatino Linotype", Palatino, serif;
  --max: 1180px;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { color: #e07a7a; }

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  color: var(--text);
}
.brand:hover { color: var(--text); }
.brand .mark {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.22em;
  font-size: 15px;
  text-transform: uppercase;
}
.brand .sub {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 3px;
}

nav.primary {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}
nav.primary a {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}
nav.primary a:hover,
nav.primary a[aria-current="page"] { color: var(--accent); }
nav.primary a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--text);
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  padding: 8px 12px;
  cursor: pointer;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: min(82vh, 780px);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: #000;
}
.hero img.hero-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 60%;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10,10,11,0.25) 0%, rgba(10,10,11,0.15) 40%, rgba(10,10,11,0.92) 100%),
    linear-gradient(90deg, rgba(10,10,11,0.55) 0%, rgba(10,10,11,0.05) 55%);
}
.hero-copy {
  position: relative;
  z-index: 1;
  padding: 72px 0 56px;
  max-width: 720px;
}
.kicker {
  font-family: var(--font-display);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--accent);
  margin: 0 0 14px;
}
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.05;
  margin: 0;
}
.hero h1 {
  font-size: clamp(42px, 8vw, 92px);
  letter-spacing: 0.06em;
}
.hero .lede {
  margin: 22px 0 0;
  font-size: 19px;
  color: var(--text);
  max-width: 38em;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 13px;
  font-weight: 500;
  padding: 12px 18px;
  border: 1px solid var(--accent);
  color: var(--text);
  background: var(--accent);
}
.btn:hover { background: #d36a6a; color: #fff; }
.btn.ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--text);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---- Sections ---- */
.section { padding: 72px 0; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
}
.section-head h2 { font-size: 22px; letter-spacing: 0.18em; }
.section-head .count {
  color: var(--muted);
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  font-size: 12px;
  text-transform: uppercase;
}

.pitch {
  max-width: 46em;
  font-size: 19px;
  color: #d8d3cb;
}
.pitch p { margin: 0 0 1em; }
.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* ---- Filters ---- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
}
.filters button {
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 8px 12px;
  cursor: pointer;
}
.filters button:hover { color: var(--text); border-color: var(--line-strong); }
.filters button.is-on {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

/* ---- Bike grid ---- */
.bike-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.bike-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  color: var(--text);
  min-height: 100%;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.bike-card:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-2px);
}
.bike-card .thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #000;
  position: relative;
}
.bike-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.bike-card .meta {
  padding: 14px 14px 16px;
  display: grid;
  gap: 6px;
}
.bike-card .num {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.bike-card .name {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.chip {
  display: inline-block;
  width: fit-content;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 2px 7px;
}
.note-missing {
  position: absolute;
  left: 8px; bottom: 8px;
  background: rgba(10,10,11,0.85);
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 6px;
}

/* ---- Bike page ---- */
.bike-hero {
  padding: 36px 0 0;
}
.bike-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.bike-title-row h1 {
  font-size: clamp(32px, 6vw, 64px);
}
.bike-title-row .num-lg {
  color: var(--accent);
  margin-right: 10px;
}
.gallery {
  display: grid;
  gap: 10px;
}
.gallery .stage {
  background: #000;
  border: 1px solid var(--line);
  overflow: hidden;
}
.gallery .stage img {
  width: 100%;
  max-height: 78vh;
  object-fit: contain;
  margin-inline: auto;
  background: #000;
}
.thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.thumbs button {
  padding: 0;
  border: 1px solid var(--line);
  background: #000;
  cursor: pointer;
  opacity: 0.72;
}
.thumbs button.is-on,
.thumbs button:hover { opacity: 1; border-color: var(--accent); }
.thumbs img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.prose {
  max-width: 42em;
  padding: 40px 0 16px;
}
.prose p { margin: 0 0 1.1em; color: #dcd7cf; }
.quote {
  font-family: var(--font-quote);
  font-size: 22px;
  font-style: italic;
  line-height: 1.45;
  color: #f0ece4;
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 18px;
  margin: 28px 0;
}
.quote cite {
  display: block;
  font-family: var(--font-display);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 10px;
}
.archive-note {
  background: var(--bg-3);
  border: 1px solid var(--line);
  padding: 16px 18px;
  color: var(--muted);
  font-size: 15px;
  margin: 24px 0;
}
.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding: 28px 0 8px;
  flex-wrap: wrap;
}
.pager a {
  color: var(--text);
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 13px;
}
.pager a:hover { color: var(--accent); }
.pager .dir { color: var(--muted); display: block; font-size: 11px; margin-bottom: 4px; }

/* ---- History ---- */
.page-hero {
  padding: 56px 0 24px;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-size: clamp(36px, 7vw, 72px); }
.page-hero h1.wordmark {
  margin: 8px 0 0;
  font-size: 0;
  line-height: 0;
}
.page-hero h1.wordmark img {
  width: min(420px, 92vw);
  height: auto;
  display: block;
}
.page-hero p {
  max-width: 40em;
  color: var(--muted);
  margin: 16px 0 0;
}

.story {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 56px 0;
}
.toc {
  position: sticky;
  top: calc(var(--header-h) + 20px);
  align-self: start;
  display: grid;
  gap: 8px;
}
.toc a {
  color: var(--muted);
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
}
.toc a:hover { color: var(--accent); }

.story-body h2 {
  font-size: 22px;
  letter-spacing: 0.16em;
  margin: 48px 0 16px;
  color: var(--accent);
}
.story-body h2:first-child { margin-top: 0; }
.story-body p {
  margin: 0 0 1.1em;
  max-width: 44em;
  color: #dcd7cf;
}
.batches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 28px 0 36px;
}
.batch {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 16px;
}
.batch .n {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
}
.batch .l {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 15px;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  color: var(--accent);
  margin-right: 10px;
}
.faq details[open] summary::before { content: "–"; }
.faq details p {
  margin: 10px 0 6px 22px;
  color: #dcd7cf;
}

/* ---- Videos / docs ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.media-card, .doc-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  overflow: hidden;
}
.media-card .embed {
  aspect-ratio: 16 / 9;
  background: #000;
}
.media-card iframe {
  width: 100%;
  height: 100%;
  border: 0;
}
.placeholder-frame {
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(-45deg, #141416 0 12px, #111113 12px 24px);
  color: var(--muted);
  text-align: center;
  padding: 24px;
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 13px;
}
.media-card .cap, .doc-card .cap {
  padding: 16px 18px 18px;
}
.media-card h3, .doc-card h3 {
  font-size: 16px;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.media-card p, .doc-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.doc-slot {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 10px;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 48px;
  margin-top: 40px;
  color: var(--muted);
  font-size: 14px;
}
.site-footer .inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.site-footer strong {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-family: var(--font-display);
  text-transform: uppercase;
}

/* ---- Responsive ---- */
@media (max-width: 980px) {
  .bike-grid { grid-template-columns: repeat(3, 1fr); }
  .story { grid-template-columns: 1fr; gap: 20px; }
  .toc { position: static; display: flex; flex-wrap: wrap; gap: 12px 18px; }
  .batches { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .wrap { width: calc(100% - 32px); }
  .nav-toggle { display: block; }
  nav.primary {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: var(--bg-2);
    border-bottom: 1px solid var(--line);
    padding: 12px 16px 18px;
    flex-direction: column;
    gap: 4px;
  }
  .site-header.is-open nav.primary { display: flex; }
  .bike-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: 1fr; }
  .hero { min-height: 70vh; }
  .section { padding: 48px 0; }
}
@media (max-width: 480px) {
  .bike-grid { grid-template-columns: 1fr; }
  .batches { grid-template-columns: 1fr 1fr; }
}

/* ---- Archive hub ---- */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.hub-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: border-color 0.15s ease, transform 0.15s ease;
  overflow: hidden;
}
.hub-card:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-2px);
}
.hub-card.span-2 { grid-column: span 2; }
.hub-card .thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #000;
}
.hub-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hub-card .body {
  padding: 18px 18px 20px;
  display: grid;
  gap: 8px;
}
.hub-card .k {
  font-family: var(--font-display);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--accent);
}
.hub-card h2 {
  font-size: 22px;
  letter-spacing: 0.12em;
}
.hub-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.hub-card .go {
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--text);
  margin-top: 6px;
}
.hub-card:hover .go { color: var(--accent); }

/* ---- Press ---- */
.press-list {
  display: grid;
  gap: 16px;
}
.press-year {
  font-family: var(--font-display);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 13px;
  color: var(--accent);
  margin: 36px 0 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}
.press-year:first-child { margin-top: 0; }
.press-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 20px 22px 18px;
  display: grid;
  gap: 8px;
}
.press-card.missing {
  border-style: dashed;
  background: var(--bg-3);
}
.press-card .outlet {
  font-family: var(--font-display);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--accent);
}
.press-card h2 {
  font-size: 20px;
  letter-spacing: 0.06em;
}
.press-card h2 a { color: var(--text); }
.press-card h2 a:hover { color: var(--accent); }
.press-card .when {
  color: var(--faint);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.press-card p {
  margin: 4px 0 0;
  color: #dcd7cf;
  font-size: 16px;
  max-width: 52em;
}
.press-card .out {
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
  margin-top: 6px;
}
.flag {
  display: inline-block;
  width: fit-content;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 2px 7px;
}

/* ---- Gallery ---- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.g-item {
  padding: 0;
  border: 1px solid var(--line);
  background: #000;
  cursor: pointer;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}
.g-item:hover { border-color: var(--accent); }
.g-item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.g-item .cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px 10px 8px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.82));
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  text-align: left;
}
.gallery-bike { margin-bottom: 36px; }
.gallery-bike h2 {
  font-size: 16px;
  letter-spacing: 0.16em;
  margin: 0 0 12px;
}
.gallery-bike h2 a { color: var(--text); }
.gallery-bike h2 a:hover { color: var(--accent); }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(0,0,0,.92);
  display: grid;
  place-items: center;
  padding: 32px 24px 64px;
  cursor: zoom-out;
}
.lightbox[hidden] { display: none !important; }
.lightbox img {
  max-width: min(1200px, 96vw);
  max-height: 82vh;
  object-fit: contain;
  box-shadow: var(--shadow);
}
.lightbox .lightbox-cap {
  position: absolute;
  left: 0; right: 0; bottom: 18px;
  text-align: center;
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 13px;
  color: #fff;
}
.lightbox .lb-close {
  position: absolute;
  top: 16px; right: 18px;
  background: none;
  border: 1px solid var(--line-strong);
  color: #fff;
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 12px;
  padding: 8px 12px;
  cursor: pointer;
}

/* ---- Tech ---- */
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 28px 0 40px;
}
.spec-block {
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 20px 22px;
}
.spec-block h3 {
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 10px;
}
.spec-block p {
  margin: 0;
  color: #dcd7cf;
  font-size: 16px;
}
.conflict {
  background: var(--bg-3);
  border: 1px solid var(--line);
  padding: 18px 20px;
  margin: 24px 0 8px;
}
.conflict h3 {
  font-size: 14px;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
}
.conflict p { margin: 0; color: var(--muted); font-size: 15px; }
.doc-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

/* ---- Vintage ---- */
.vintage-note {
  max-width: 42em;
  font-size: 18px;
  color: #d8d3cb;
}
.vintage-note p { margin: 0 0 1em; }
.x-pieces {
  display: grid;
  gap: 10px;
  margin: 28px 0;
  max-width: 40em;
}
.x-pieces a {
  display: block;
  border: 1px solid var(--line);
  padding: 14px 16px;
  color: var(--text);
  background: var(--bg-2);
}
.x-pieces a:hover { border-color: var(--accent); color: var(--text); }
.x-pieces .t {
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 14px;
}
.x-pieces .s { color: var(--muted); font-size: 14px; margin-top: 4px; }

@media (max-width: 980px) {
  .hub-grid { grid-template-columns: 1fr 1fr; }
  .hub-card.span-2 { grid-column: span 2; }
  .photo-grid { grid-template-columns: repeat(3, 1fr); }
  .spec-grid, .doc-grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .hub-grid { grid-template-columns: 1fr; }
  .hub-card.span-2 { grid-column: auto; }
  .photo-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-grid, .doc-grid-3 { grid-template-columns: 1fr; }
  nav.primary { gap: 10px; }
}