/* Beachhead – Eras of Conquest: site styles */
:root {
  --ink: #0f1112;
  --ink-2: #16191a;
  --ink-3: #1e2223;
  --sand: #efe7d6;
  --sand-2: #e3d8c1;
  --paper: #f3eee3;
  --text: #22201c;
  --text-soft: #5b564d;
  --on-dark: #efe7d6;
  --on-dark-soft: #b8b0a0;
  --rust: #c0532f;
  --olive: #6b7a3c;
  --amber: #d7a24a;
  --steel: #8fa3b0;
  --ice: #8fd3f0;
  --line: rgba(239, 231, 214, 0.14);
  --line-dark: rgba(34, 32, 28, 0.16);
  --display: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font: 400 18px/1.6 var(--serif);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { max-width: 820px; }

/* Nav */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px var(--gutter);
  color: var(--on-dark);
  transition: background .25s, backdrop-filter .25s, box-shadow .25s;
}
.nav.is-solid { background: rgba(15, 17, 18, 0.88); backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--line); }
.nav-mark { font: 900 24px/1 var(--display); letter-spacing: 0.06em; text-decoration: none; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font: 600 12px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; opacity: .82; }
.nav-links a:hover { opacity: 1; color: var(--amber); }
.nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--on-dark); margin: 5px 0; transition: transform .2s; }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0;
    background: rgba(15, 17, 18, 0.97); padding: 8px var(--gutter) 18px;
    display: none;
  }
  .nav.is-open .nav-links { display: flex; }
  .nav.is-open { background: rgba(15, 17, 18, 0.97); }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
  .nav.is-open .nav-toggle span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .nav.is-open .nav-toggle span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
}

/* Hero */
.hero { position: relative; min-height: clamp(560px, 100svh, 1040px); display: grid; align-items: end; color: var(--on-dark); background: var(--ink); overflow: hidden; }
.hero-bg img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; transform: scale(1.04); animation: drift 24s ease-out forwards; }
@keyframes drift { to { transform: scale(1); } }
.hero-shade { position: absolute; inset: 0; background:
  linear-gradient(180deg, rgba(10, 12, 13, .55) 0%, rgba(10, 12, 13, 0) 28%, rgba(10, 12, 13, .15) 55%, rgba(10, 12, 13, .92) 100%); }
.hero-inner { position: relative; max-width: var(--max); width: 100%; margin: 0 auto; padding: 120px var(--gutter) clamp(64px, 10vh, 120px); }
.kicker { font: 600 12px/1 var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--amber); margin: 0 0 18px; }
.hero-logo { width: min(760px, 100%); filter: drop-shadow(0 8px 30px rgba(0, 0, 0, .55)); }
.hero-line { font: 800 clamp(30px, 4.6vw, 58px)/1.02 var(--display); text-transform: uppercase; letter-spacing: .01em; margin: 26px 0 12px; max-width: 18ch; }
.hero-sub { font-size: clamp(17px, 1.6vw, 20px); color: var(--on-dark-soft); margin: 0 0 30px; max-width: 46ch; }
.hero-sub em { color: var(--on-dark); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; padding: 14px 22px; font: 600 13px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; text-decoration: none; border-radius: 2px; transition: transform .15s, background .15s, color .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-solid { background: var(--rust); color: #fff; }
.btn-solid:hover { background: #d4603a; }
.btn-ghost { border: 1px solid rgba(239, 231, 214, .45); color: var(--on-dark); }
.btn-ghost:hover { background: rgba(239, 231, 214, .1); }
.hero-scroll { position: absolute; left: 50%; bottom: 22px; width: 24px; height: 38px; margin-left: -12px; border: 2px solid rgba(239, 231, 214, .5); border-radius: 12px; }
.hero-scroll span { position: absolute; left: 50%; top: 7px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: var(--on-dark); animation: nudge 1.8s infinite; }
@keyframes nudge { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }
@media (max-width: 720px) { .hero-scroll { display: none; } }

/* Sections */
.section { padding: clamp(72px, 11vw, 140px) 0; }
.section-dark { background: var(--ink); color: var(--on-dark); }
.section-band { background: var(--sand-2); }
.eyebrow { font: 600 12px/1 var(--mono); letter-spacing: .18em; text-transform: uppercase; color: var(--rust); margin: 0 0 14px; }
.section-dark .eyebrow { color: var(--amber); }
.display { font: 900 clamp(40px, 6.4vw, 84px)/.95 var(--display); text-transform: uppercase; letter-spacing: .005em; margin: 0 0 22px; }
.lede { font-size: clamp(18px, 1.7vw, 21px); color: var(--text-soft); max-width: 60ch; margin: 0 0 48px; }
.section-dark .lede { color: var(--on-dark-soft); }
.split-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; }
.lede-side { margin-bottom: 28px; max-width: 34ch; }
.fineprint { font: 400 12px/1.5 var(--mono); color: var(--on-dark-soft); margin: 24px 0 0; opacity: .8; }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pillar { border-top: 3px solid var(--text); padding-top: 22px; }
.pillar-num { font: 600 12px/1 var(--mono); color: var(--rust); letter-spacing: .1em; }
.pillar h3 { font: 800 30px/1 var(--display); text-transform: uppercase; margin: 12px 0 12px; }
.pillar p { margin: 0; color: var(--text-soft); }
@media (max-width: 860px) { .pillars { grid-template-columns: 1fr; } }

/* Eras */
.eras { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.era { background: var(--ink-2); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; display: flex; flex-direction: column; transition: transform .25s, border-color .25s; }
.era:hover { transform: translateY(-3px); border-color: rgba(239, 231, 214, .3); }
.era-art { position: relative; aspect-ratio: 16 / 8; display: grid; place-items: center; padding: 0 9%; overflow: hidden;
  background-color: #121415; background-size: cover; background-position: center; }
.era-art > img { width: 100%; height: auto; filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .7)); transition: transform .4s ease; }
.era:hover .era-art > img { transform: scale(1.03); }
.era-escalation .era-art-plain { background: radial-gradient(110% 90% at 50% 40%, #3a3330 0%, #151312 72%); }
.era-futurewar .era-art-plain { background: radial-gradient(110% 90% at 50% 40%, #1f3442 0%, #0b1217 72%); }
.era-game { font: 600 13px/1.3 var(--mono) !important; letter-spacing: .08em; text-transform: uppercase; color: var(--era) !important; margin: -2px 0 10px !important; }
.era-body b { color: var(--on-dark); font-weight: 600; }
.era-body { display: flex; flex-direction: column; }
.progress { margin-top: auto; padding-top: 22px; }
.progress-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px;
  font: 600 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark-soft); }
.progress-head b { font: 800 22px/1 var(--display); letter-spacing: .02em; color: var(--on-dark); text-transform: none; }
.progress-head b.na { font: 600 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark-soft); }
.progress-bar { height: 8px; border-radius: 4px; background: rgba(239, 231, 214, .1); overflow: hidden; }
.progress-bar span { display: block; height: 100%; min-width: 0; border-radius: 4px; background: var(--era, var(--rust));
  box-shadow: 0 0 12px color-mix(in srgb, var(--era, var(--rust)) 55%, transparent); transform-origin: left; transition: transform 1.2s cubic-bezier(.2, .7, .2, 1); }
.era.reveal:not(.is-in) .progress-bar span { transform: scaleX(0); }
.era-body { padding: 22px 26px 28px; border-top: 3px solid var(--era, var(--rust)); flex: 1; }
.era-body h3 { font: 800 30px/1 var(--display); text-transform: uppercase; margin: 8px 0 10px; }
.era-body p { margin: 0; color: var(--on-dark-soft); }
.era-tag { font: 600 11px/1 var(--mono) !important; letter-spacing: .14em; text-transform: uppercase; color: var(--on-dark) !important; opacity: .75; display: flex; align-items: center; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 50%; border: 1.5px solid var(--on-dark-soft); }
.dot-live { border: 0; background: #7fc36a; box-shadow: 0 0 0 4px rgba(127, 195, 106, .18); }
.era-42 { --era: #b9a77d; }
.era-vietnam { --era: var(--amber); }
.era-escalation { --era: #d9783a; }
.era-futurewar { --era: var(--ice); }
@media (max-width: 860px) { .eras { grid-template-columns: 1fr; } }

/* Modes */
.modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; margin-top: 12px; }
.mode-shot { margin: 0 0 22px; border-radius: 4px; overflow: hidden; aspect-ratio: 16 / 10; background: var(--ink); }
.mode-shot img { width: 100%; height: 100%; object-fit: cover; }
.mode h3 { font: 800 32px/1.05 var(--display); text-transform: uppercase; margin: 0 0 12px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.mode p { color: var(--text-soft); margin: 0 0 16px; }
.mode-chip { font: 600 11px/1 var(--mono); letter-spacing: .14em; padding: 6px 9px; border: 1.5px solid var(--olive); color: var(--olive); border-radius: 2px; }
.mode-chip-alt { border-color: var(--rust); color: var(--rust); }
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { position: relative; padding: 8px 0 8px 26px; border-top: 1px solid var(--line-dark); font-size: 16px; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 12px; height: 2px; background: var(--rust); }
@media (max-width: 860px) { .modes { grid-template-columns: 1fr; gap: 56px; } }

/* Clock */
.clock { border-radius: 4px; overflow: hidden; background: var(--ink); }
.clock-frames { position: relative; aspect-ratio: 16 / 9; }
.clock-frames img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .7s ease; }
.clock-frames img.is-on { opacity: 1; }
.clock-bar { display: grid; grid-template-columns: repeat(4, 1fr); }
.clock-bar button { background: var(--ink-2); color: var(--on-dark-soft); border: 0; border-top: 3px solid transparent; padding: 14px 10px 16px; cursor: pointer; font: 400 14px/1.3 var(--serif); text-align: left; transition: background .2s, color .2s, border-color .2s; }
.clock-bar button b { display: block; font: 600 13px/1.4 var(--mono); color: var(--on-dark); letter-spacing: .06em; }
.clock-bar button[aria-selected="true"] { border-top-color: var(--amber); background: var(--ink-3); color: var(--on-dark); }
.clock-bar button:hover { background: var(--ink-3); }
@media (max-width: 520px) { .clock-bar button { font-size: 12px; padding: 12px 8px; } }

/* Gallery */
.tabs { display: flex; gap: 8px; margin: 8px 0 26px; flex-wrap: wrap; }
.tabs button { background: none; border: 1px solid var(--line); color: var(--on-dark-soft); padding: 12px 16px; cursor: pointer; font: 600 13px/1.2 var(--mono); letter-spacing: .06em; border-radius: 2px; text-align: left; }
.tabs button small { display: block; font-weight: 400; font-size: 11px; opacity: .7; margin-top: 3px; }
.tabs button[aria-selected="true"] { border-color: var(--amber); color: var(--on-dark); background: rgba(215, 162, 74, .08); }
.grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.grid > .tile { grid-column: span 3; }
.grid > .tile-wide { grid-column: span 6; }
.grid > .tile-third { grid-column: span 2; }
.tile { position: relative; display: block; border-radius: 3px; overflow: hidden; aspect-ratio: 16 / 9; background: var(--ink-2); }
.tile-wide { aspect-ratio: 21 / 9; }
.tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.tile:hover img { transform: scale(1.04); }
.tile::after { content: attr(data-caption); position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 16px 12px; font: 400 13px/1.4 var(--mono); color: var(--on-dark);
  background: linear-gradient(transparent, rgba(0, 0, 0, .75)); opacity: 0; transform: translateY(6px); transition: opacity .25s, transform .25s; }
.tile:hover::after, .tile:focus-visible::after { opacity: 1; transform: none; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } .grid > .tile, .grid > .tile-wide, .grid > .tile-third { grid-column: auto; } .tile-wide { aspect-ratio: 16 / 9; } .tile::after { opacity: 1; transform: none; } }

/* Features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line-dark); }
.feature { padding: 28px 26px 30px 0; border-bottom: 1px solid var(--line-dark); }
.feature h3 { font: 800 24px/1.05 var(--display); text-transform: uppercase; margin: 0 0 8px; }
.feature p { margin: 0; color: var(--text-soft); font-size: 16px; }
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features { grid-template-columns: 1fr; } .feature { padding-right: 0; } }

/* Online */
.online { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.online .lede { margin-bottom: 0; }
.stats { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.stats li { background: var(--paper); padding: 24px 22px; }
.stats b { display: block; font: 900 44px/1 var(--display); color: var(--rust); }
.stats span { font-size: 15px; color: var(--text-soft); }
@media (max-width: 860px) { .online { grid-template-columns: 1fr; gap: 32px; } }

/* Roadmap */
.road { list-style: none; margin: 0; padding: 0; counter-reset: road; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.road li { position: relative; padding: 26px 26px 32px 0; border-top: 2px solid var(--line); }
.road li::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--ink); border: 2px solid var(--on-dark-soft); }
.road-now::before { background: var(--amber) !important; border-color: var(--amber) !important; box-shadow: 0 0 0 6px rgba(215, 162, 74, .2); }
.road-now { border-top-color: var(--amber) !important; }
.road-step { font: 600 11px/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; color: var(--amber); }
.road h3 { font: 800 24px/1.05 var(--display); text-transform: uppercase; margin: 10px 0 8px; }
.road p { margin: 0; color: var(--on-dark-soft); font-size: 16px; }
@media (max-width: 860px) { .road { grid-template-columns: 1fr; } .road li { border-top: 0; border-left: 2px solid var(--line); padding: 0 0 30px 26px; } .road li::before { top: 2px; left: -7px; } .road-now { border-left-color: var(--amber) !important; } }

/* FAQ */
details { border-top: 1px solid var(--line-dark); }
details:last-of-type { border-bottom: 1px solid var(--line-dark); }
summary { list-style: none; cursor: pointer; padding: 20px 40px 20px 0; position: relative; font: 800 24px/1.15 var(--display); text-transform: uppercase; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 16px; font: 400 28px/1 var(--mono); color: var(--rust); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 0 0 22px; color: var(--text-soft); max-width: 64ch; }

/* Footer */
.footer { background: var(--ink); color: var(--on-dark-soft); padding: 56px 0 64px; }
.footer-grid { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; }
.footer-mark { font: 900 30px/1 var(--display); letter-spacing: .06em; color: var(--on-dark); margin: 0 0 8px; }
.footer-tag { font: 400 13px/1.5 var(--mono); margin: 0; }
.legal p { font-size: 14px; line-height: 1.6; margin: 0 0 12px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 50; background: rgba(8, 9, 10, .94); display: grid; grid-template-columns: 64px 1fr 64px; align-items: center; }
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; grid-column: 2; text-align: center; }
.lightbox img { max-height: 82vh; width: auto; margin: 0 auto; border-radius: 3px; }
.lightbox figcaption { font: 400 13px/1.5 var(--mono); color: var(--on-dark-soft); margin-top: 14px; padding: 0 12px; }
.lightbox button { background: none; border: 0; color: var(--on-dark); font: 300 44px/1 var(--serif); cursor: pointer; opacity: .7; padding: 12px; }
.lightbox button:hover { opacity: 1; }
.lb-close { position: absolute; top: 12px; right: 16px; }
.lb-prev { grid-column: 1; } .lb-next { grid-column: 3; }
@media (max-width: 600px) { .lightbox { grid-template-columns: 40px 1fr 40px; } .lightbox button { font-size: 34px; padding: 6px; } }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }