/* Multiplayer API — shared stylesheet for content pages (guides, engines,
   comparisons, localized landings). Same tokens as the home page. */
:root {
  --bg: #0c0d10; --panel: #12141a; --panel-2: #1a1d24; --ink: #f2f0ea; --dim: #8b8f9a;
  --line: #2a2e38; --line-soft: #1e222b; --lime: #c8f135; --lime-ink: #101208;
  --blue: #5aa6ff; --rose: #ff6b6b; --gold: #ffc857;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", "Hiragino Sans", "Noto Sans CJK", "Microsoft YaHei", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.65 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--lime); color: var(--lime-ink); }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }
.shell { max-width: 1180px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 44px); }
.narrow { max-width: 820px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(12,13,16,.86); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line-soft); }
.nav-in { display: flex; align-items: center; justify-content: space-between; gap: 18px; height: 60px; }
.mark { font-family: var(--display); font-weight: 800; font-size: 20px; letter-spacing: .02em; text-transform: uppercase; white-space: nowrap; }
.mark em { font-style: normal; color: var(--lime); }
.nav nav { display: flex; align-items: center; gap: 20px; font-family: var(--mono); font-size: 12.5px; color: var(--dim); }
.nav nav a:hover { color: var(--ink); }
.nav-cta { color: var(--lime-ink) !important; background: var(--lime); padding: 8px 14px; text-transform: uppercase; font-size: 11.5px; letter-spacing: .03em; font-weight: 500; }
.lang { position: relative; }
.lang summary { cursor: pointer; list-style: none; border: 1px solid var(--line); padding: 5px 9px; }
.lang summary::-webkit-details-marker { display: none; }
.lang ul { position: absolute; right: 0; top: 34px; margin: 0; padding: 6px 0; list-style: none; background: var(--panel); border: 1px solid var(--line); min-width: 150px; }
.lang li a { display: block; padding: 6px 14px; }
.lang li a:hover, .lang li a[aria-current] { color: var(--lime); }
@media (max-width: 860px) { .nav nav a.opt { display: none; } }

/* Breadcrumb */
.crumbs { font-family: var(--mono); font-size: 11.5px; color: var(--dim); padding-top: 22px; letter-spacing: .02em; }
.crumbs a { text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 3px; }
.crumbs span { margin: 0 6px; color: #555a66; }

/* Hero */
.phero { border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #101318, var(--bg) 80%); }
.phero-in { padding-top: clamp(30px, 6vh, 70px); padding-bottom: clamp(36px, 7vh, 80px); }
.eyebrow { margin: 0 0 16px; font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.eyebrow b { color: var(--lime); font-weight: 500; }
h1 { margin: 0; font-family: var(--display); font-weight: 800; font-size: clamp(36px, 6vw, 68px); line-height: .95; text-transform: uppercase; letter-spacing: -.005em; max-width: 20ch; }
h1 em, h2 em { font-style: normal; color: var(--lime); }
.lead { margin: 18px 0 0; color: var(--dim); font-size: 17.5px; max-width: 62ch; }
.lead strong { color: var(--ink); font-weight: 500; }
:lang(ja) h1, :lang(ko) h1, :lang(zh) h1, :lang(ja) h2, :lang(ko) h2, :lang(zh) h2 { text-transform: none; line-height: 1.15; letter-spacing: 0; }

/* Buttons */
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 12.5px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; padding: 14px 20px; border: 1px solid var(--lime); background: var(--lime); color: var(--lime-ink); }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); }
.cta-note { margin: 12px 0 0; font-family: var(--mono); font-size: 11.5px; color: var(--dim); }
.cta-note b { color: var(--ink); font-weight: 500; }
@media (max-width: 520px) { .btn { width: 100%; justify-content: center; } }

/* Sections + prose */
section.band { border-bottom: 1px solid var(--line); }
.band-in { padding-top: clamp(44px, 7vh, 84px); padding-bottom: clamp(44px, 7vh, 84px); }
.kicker { display: block; margin: 0 0 14px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--lime); }
h2 { margin: 0 0 18px; font-family: var(--display); font-weight: 800; font-size: clamp(28px, 4.2vw, 46px); line-height: 1; text-transform: uppercase; max-width: 26ch; }
h3 { font-family: var(--display); font-weight: 700; font-size: 24px; line-height: 1.1; text-transform: uppercase; margin: 30px 0 10px; letter-spacing: .01em; }
.prose p, .prose li { color: #c9c7c0; max-width: 72ch; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a, a.u { color: var(--ink); text-decoration: underline; text-decoration-color: #4a5060; text-underline-offset: 3px; }
.prose a:hover, a.u:hover { text-decoration-color: var(--lime); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
code { font-family: var(--mono); font-size: .9em; background: var(--panel-2); padding: 1px 5px; border: 1px solid var(--line-soft); }
pre { margin: 18px 0; padding: 18px 20px; background: #0a0c10; border: 1px solid var(--line); overflow-x: auto; font: 13px/1.6 var(--mono); color: #d8d6cf; }
pre code { background: none; border: 0; padding: 0; font-size: inherit; }
.note { border-left: 2px solid var(--lime); padding: 10px 16px; background: var(--panel); color: #c9c7c0; margin: 22px 0; max-width: 72ch; }
.note b { color: var(--ink); }

/* Cards grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 26px; }
.grid > * { background: var(--bg); padding: 22px 22px 24px; }
.grid a.card:hover { background: var(--panel); }
.grid .tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--lime); }
.grid h3 { margin: 10px 0 8px; font-size: 22px; }
.grid p { margin: 0; color: var(--dim); font-size: 14.5px; }
.grid .go { display: inline-block; margin-top: 12px; font-family: var(--mono); font-size: 11.5px; color: var(--ink); text-transform: uppercase; letter-spacing: .05em; }

/* Tables */
.tbl { width: 100%; overflow-x: auto; margin: 22px 0; }
table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 14.5px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
th { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); font-weight: 500; border-bottom-color: var(--line); }
td:first-child { color: var(--ink); }
td { color: #c9c7c0; }
td.y { color: var(--lime); }

/* Prompt box */
.promptbox { border: 1px solid var(--line); background: var(--panel); margin: 22px 0; max-width: 860px; }
.promptbox header { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--line-soft); font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--dim); }
.promptbox button { font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .05em; background: var(--lime); color: var(--lime-ink); border: 0; padding: 6px 11px; cursor: pointer; }
.promptbox p { margin: 0; padding: 16px 18px; font: 13.5px/1.65 var(--mono); color: var(--ink); white-space: pre-wrap; }

/* Steps */
ol.steps { list-style: none; padding: 0; margin: 26px 0 0; counter-reset: s; border-top: 1px solid var(--line); }
ol.steps > li { counter-increment: s; display: grid; grid-template-columns: 70px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line-soft); }
ol.steps > li::before { content: "0" counter(s); font-family: var(--display); font-weight: 800; font-size: 34px; color: var(--lime); line-height: 1; }
ol.steps h3 { margin: 0 0 6px; font-size: 21px; }
ol.steps p { margin: 0; color: var(--dim); }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line-soft); padding: 16px 0; max-width: 820px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; }
.faq summary::before { content: "+"; font-family: var(--mono); color: var(--lime); margin-right: 12px; }
.faq details[open] summary::before { content: "−"; }
.faq summary::-webkit-details-marker { display: none; }
.faq details p { color: #c9c7c0; margin: 10px 0 0 26px; }

/* Final CTA */
.final { text-align: left; }
.final-in { padding-top: clamp(50px, 8vh, 90px); padding-bottom: clamp(50px, 8vh, 90px); }

/* Footer */
footer.foot { padding: 50px 0 36px; font-size: 14px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 30px; }
.foot-grid h4 { margin: 0 0 12px; font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); font-weight: 500; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li { margin: 7px 0; color: #b9b7b0; }
.foot-grid li a:hover { color: var(--lime); }
.foot-brand p { color: var(--dim); max-width: 34ch; }
.foot-bot { margin-top: 38px; padding-top: 20px; border-top: 1px solid var(--line-soft); display: flex; flex-wrap: wrap; gap: 12px 22px; justify-content: space-between; font-family: var(--mono); font-size: 11.5px; color: var(--dim); }
.foot-bot nav { display: flex; flex-wrap: wrap; gap: 14px; }
@media (max-width: 900px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }