:root {
  --void: #080b0f;
  --panel: #10151b;
  --panel-light: #171e25;
  --paper: #e9e7df;
  --paper-dim: #a4a7a6;
  --line: #30383d;
  --red: #ff493c;
  --cyan: #50d9e8;
  --display: "Barlow Condensed", Impact, sans-serif;
  --body: "Barlow Semi Condensed", Arial, sans-serif;
  --mono: "Share Tech Mono", monospace;
  --jp: "Noto Serif JP", serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--void); color: var(--paper); font: 16px/1.55 var(--body); }
body::selection { color: var(--void); background: var(--cyan); }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.skip-link { position: fixed; z-index: 20; top: 10px; left: 10px; transform: translateY(-160%); padding: 10px 13px; color: var(--void); background: var(--cyan); font: 9px/1 var(--mono); letter-spacing: .1em; transition: transform .18s ease; }
.skip-link:focus { transform: translateY(0); }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.masthead { height: 76px; padding: 0 5.2vw; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--void) 94%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid #ffffff16; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; color: var(--paper); font: 600 14px/1 var(--mono); letter-spacing: .1em; white-space: nowrap; }
.wordmark-stamp { width: 33px; height: 33px; display: grid; place-items: center; border: 1px solid var(--red); color: var(--red); font: 600 17px/1 var(--jp); transform: rotate(-5deg); }
.wordmark-slash { color: var(--red); padding: 0 3px; }
.masthead nav { display: flex; gap: 34px; height: 100%; align-items: center; }
.masthead nav a, .after-hours { color: #a6aaab; font: 500 10px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; transition: color .18s ease; }
.masthead nav a:hover, .masthead nav .nav-active, .after-hours:hover { color: var(--paper); }
.masthead nav .nav-active { position: relative; }
.install-app { margin-left: 14px; padding: 8px 10px; border: 1px solid var(--cyan); background: transparent; color: var(--cyan); font: 9px/1 var(--mono); letter-spacing: .1em; cursor: pointer; }
.install-app:hover, .install-app:focus-visible { color: var(--void); background: var(--cyan); outline: none; }
.masthead nav .nav-active::after { content: ""; height: 2px; position: absolute; bottom: -13px; left: 0; right: 0; background: var(--red); }
.section-menu { position: relative; z-index: 12; margin-left: auto; }
.section-menu summary { display: inline-flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid #5c6264; color: #a6aaab; cursor: pointer; list-style: none; font: 500 10px/1 var(--mono); letter-spacing: .14em; }
.section-menu summary::-webkit-details-marker { display: none; }
.section-menu summary::after { content: "+"; color: var(--red); font: 15px/1 var(--mono); }
.section-menu[open] summary { color: var(--paper); border-color: var(--cyan); }
.section-menu[open] summary::after { content: "−"; color: var(--cyan); }
.section-menu-panel { position: absolute; top: calc(100% + 10px); right: 0; width: min(360px, calc(100vw - 36px)); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; padding: 8px; border: 1px solid var(--line); background: var(--line); box-shadow: 0 18px 40px #000b; }
.section-menu-panel a { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 9px 10px; background: var(--panel); color: #b8bfbd; font: 13px/1.1 var(--body); transition: color .15s ease, background .15s ease; }
.section-menu-panel a:hover, .section-menu-panel a:focus-visible { color: var(--paper); background: #17232a; }
.section-menu-panel b { color: var(--red); font: 9px/1 var(--mono); letter-spacing: .08em; }
.after-hours { display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px; border: 1px solid #5c6264; }
.after-hours i, .live-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--red); box-shadow: 0 0 10px #ff493c; }
.cover { min-height: 420px; height: min(450px, calc(100svh - 76px)); max-height: 470px; position: relative; overflow: hidden; display: flex; align-items: center; background: #080b0f; }
.cover-photo, .cover-shade { position: absolute; inset: 0; }
.cover-photo { background: url("/tokyo-noir.webp") 63% 51% / cover no-repeat; filter: saturate(.88) contrast(1.08); transform: scale(1.015); }
.cover-shade { background: linear-gradient(90deg, #080b0f 2%, rgba(8,11,15,.96) 22%, rgba(8,11,15,.78) 45%, rgba(8,11,15,.08) 82%), linear-gradient(0deg, #080b0f 0%, transparent 24%, #080b0f3d 100%); }
.cover::after { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; opacity: .52; mix-blend-mode: screen; background: radial-gradient(circle at 83% 40%, rgba(255,74,202,.3), transparent 12%), radial-gradient(circle at 73% 66%, rgba(55,215,236,.25), transparent 10%), radial-gradient(circle at 91% 77%, rgba(255,74,60,.28), transparent 9%); animation: street-flicker 5.8s infinite steps(1, end); }
.cover::before { content: ""; position: absolute; inset: 18px; z-index: 1; border: 1px solid #ffffff24; pointer-events: none; }
.cover-copy { position: relative; z-index: 2; width: min(700px, 65vw); margin: 4px 0 10px 10.5vw; transform: translateY(-18px); }
.cover-kicker, .cover-overline, .cover-bottom, .cover-side-note, .cover-index, .mono-label, .signal-strip, .manifesto-label, .row-no, .row-type, .row-open, .board-footnote, .thread-id, .thread-tag, .thread-go, .cover-coordinates, .board-total, .search-box, .filter-label, .filter-chip, .topic-table-head, .thread-number, .thread-ask, .thread-open, .topics-bottom-line, .photo-credit, .feature-stamp, .footer-line, .site-footer>div a { font-family: var(--mono); }
.cover-kicker { max-width: 440px; display: flex; justify-content: space-between; color: #d2d4d3; font-size: 10px; letter-spacing: .12em; }
.cover-overline { display: flex; align-items: center; gap: 10px; color: var(--cyan); font-size: 10px; letter-spacing: .16em; margin: 34px 0 10px; }
.cover h1 { color: var(--paper); font: 400 clamp(68px, 8.6vw, 126px)/.88 var(--display); letter-spacing: -.035em; margin: 0 0 13px -7px; text-shadow: 0 4px 26px #0009; }
.cover h1 em { color: var(--red); font-style: normal; }
.cover-deck { color: #dedfdc; font-size: clamp(17px, 1.7vw, 22px); line-height: 1.45; margin: 0; letter-spacing: -.015em; }
.cover-actions { display: flex; align-items: center; gap: 23px; margin-top: 16px; }
.button { min-height: 48px; padding: 0 17px; display: inline-flex; justify-content: center; align-items: center; gap: 25px; font: 500 10px/1 var(--mono); letter-spacing: .08em; transition: .18s ease; }
.button span { font-size: 15px; }
.button-red { color: var(--void); background: var(--red); }
.button-red:hover { background: var(--paper); transform: translateY(-2px); }
.cover-secondary, .arrow-link { color: #e3e4e0; font: 500 10px/1.5 var(--mono); letter-spacing: .1em; }
.cover-secondary { border-bottom: 1px solid #a9acaa; padding: 7px 0; }
.cover-secondary:hover, .arrow-link:hover { color: var(--cyan); }
.cover-side-note { position: absolute; z-index: 2; right: 5.5vw; top: 17%; writing-mode: vertical-rl; color: var(--paper); font-size: 10px; letter-spacing: .17em; }
.cover-side-note span { color: #bbc1c0; margin-top: 14px; font-size: 8px; }
.cover-bottom { position: absolute; z-index: 2; bottom: 18px; left: 5.2vw; right: 5.2vw; display: flex; justify-content: space-between; gap: 15px; padding-top: 10px; border-top: 1px solid #ffffff4a; color: #d3d4d1; font-size: 8px; letter-spacing: .1em; }
.photo-credit { color: #aaa; font-size: 8px; }
.cover-index { position: absolute; z-index: 2; right: 5.3vw; bottom: 28%; color: var(--red); font-size: 11px; letter-spacing: .1em; writing-mode: vertical-rl; }
.signal-strip { min-height: 50px; padding: 0; display: block; overflow: hidden; background: var(--red); color: var(--void); font-size: 9px; font-weight: 600; letter-spacing: .11em; white-space: nowrap; }
.signal-track { width: max-content; min-height: 50px; padding: 0 5vw; display: flex; justify-content: space-between; align-items: center; gap: 42px; animation: signal-travel 22s linear infinite; }
.signal-mark { font-size: 16px; font-weight: 400; }
.signal-cross { font-size: 15px; }
.page-gutter { padding-left: max(6.5vw, calc((100vw - 1200px)/2)); padding-right: max(6.5vw, calc((100vw - 1200px)/2)); }
.manifesto { min-height: 360px; padding-top: 82px; padding-bottom: 84px; display: grid; grid-template-columns: 150px 1.4fr .8fr; align-items: start; gap: 32px; position: relative; overflow: hidden; }
.manifesto-label { display: flex; gap: 10px; color: #a4a7a6; font-size: 9px; line-height: 1.7; letter-spacing: .12em; }
.red-rule { width: 22px; height: 2px; display: inline-block; background: var(--red); flex: none; margin-top: 6px; }
.manifesto h2 { position: relative; z-index: 1; margin: -9px 0 0; color: var(--paper); font: 400 clamp(48px, 6.2vw, 83px)/.98 var(--display); letter-spacing: -.025em; }
.red-period { color: var(--red); }
.manifesto-note { position: relative; z-index: 1; color: #b6b8b5; font-size: 14px; line-height: 1.8; max-width: 330px; }
.manifesto-note p { margin: 0 0 12px; }
.arrow-link { display: inline-flex; align-items: center; gap: 20px; margin-top: 10px; color: var(--cyan); }
.arrow-link span { color: var(--red); font-size: 17px; }
.manifesto-kanji { position: absolute; right: 6%; bottom: -74px; color: #121a20; font: 320px/1 var(--jp); pointer-events: none; }
.culture-map { padding-top: 72px; padding-bottom: 82px; border-top: 1px solid var(--line); }
.culture-map-head { margin-bottom: 36px; }
.culture-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.culture-card { min-height: 214px; display: flex; flex-direction: column; align-items: flex-start; padding: 18px; position: relative; overflow: hidden; border: 1px solid var(--line); background: #0c1217; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.culture-card:hover { transform: translateY(-3px); border-color: var(--cyan); background: #101920; }
.culture-no { color: var(--red); font: 10px/1 var(--mono); letter-spacing: .1em; }
.culture-icon { position: absolute; right: 17px; top: 13px; color: #263943; font: 54px/1 var(--jp); }
.culture-card h3 { margin: 34px 0 9px; color: var(--paper); font: 400 29px/.9 var(--display); letter-spacing: -.02em; }
.culture-card p { max-width: 230px; margin: 0; color: #929b9b; font-size: 12px; line-height: 1.55; }
.culture-arrow { margin-top: auto; padding-top: 18px; color: var(--cyan); font: 8px/1 var(--mono); letter-spacing: .12em; }
.faq-section { padding-top: 72px; padding-bottom: 82px; border-top: 1px solid var(--line); }
.faq-head { margin-bottom: 34px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 21px 0; color: var(--paper); cursor: pointer; list-style: none; font: 400 clamp(22px, 2.7vw, 34px)/1 var(--display); letter-spacing: -.015em; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: none; color: var(--red); font: 24px/1 var(--mono); }
.faq-list details[open] summary::after { content: "−"; color: var(--cyan); }
.faq-list details p { max-width: 720px; margin: -2px 48px 24px 0; color: #a8afad; font-size: 14px; line-height: 1.75; }
.glossary-section { padding-top: 72px; padding-bottom: 82px; border-top: 1px solid var(--line); }
.glossary-head { margin-bottom: 34px; }
.glossary-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.glossary-item { min-height: 175px; padding: 18px; border: 1px solid var(--line); background: #0c1217; }
.glossary-item > span { color: var(--red); font: 8px/1 var(--mono); letter-spacing: .15em; }
.glossary-item h3 { margin: 20px 0 8px; color: var(--paper); font: 400 27px/.95 var(--display); }
.glossary-item p { margin: 0; color: #929b9b; font-size: 12px; line-height: 1.6; }
.era-index { padding-top: 72px; padding-bottom: 82px; border-top: 1px solid var(--line); }
.era-index-head { margin-bottom: 34px; }
.era-list { border-top: 1px solid var(--line); }
.era-row { display: grid; grid-template-columns: 145px minmax(0, 1fr) 42px; gap: 22px; align-items: start; padding: 22px 0; border-bottom: 1px solid var(--line); }
.era-date { padding-top: 5px; color: var(--cyan); font: 8px/1.3 var(--mono); letter-spacing: .13em; }
.era-row h3 { margin: 0 0 5px; color: var(--paper); font: 400 clamp(23px, 2.3vw, 31px)/1 var(--display); letter-spacing: -.02em; }
.era-row p { max-width: 650px; margin: 0; color: #929b9b; font-size: 13px; line-height: 1.65; }
.era-mark { justify-self: end; color: var(--red); font: 10px/1 var(--mono); letter-spacing: .1em; }
.era-note { margin: 16px 0 0; color: #6f797c; font: 9px/1.6 var(--mono); letter-spacing: .08em; }
.evidence-desk { padding-top: 72px; padding-bottom: 82px; border-top: 1px solid var(--line); }
.evidence-head { margin-bottom: 34px; }
.evidence-head h2 { margin: 18px 0 0; color: var(--paper); font: 400 clamp(62px, 8.1vw, 108px)/.96 var(--display); letter-spacing: -.035em; }
.evidence-head h2 span { color: var(--red); }
.evidence-head>p { margin: 0 0 4px; color: #929796; font-size: 13px; text-align: right; }
.evidence-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.evidence-card { min-height: 205px; padding: 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0c1217; }
.evidence-rank { color: var(--cyan); font: 8px/1 var(--mono); letter-spacing: .12em; }
.evidence-card h3 { margin: 29px 0 9px; color: var(--paper); font: 400 22px/.95 var(--display); letter-spacing: -.015em; }
.evidence-card p { margin: 0; color: #929b9b; font-size: 12px; line-height: 1.58; }
.evidence-kind { display: block; margin-top: 21px; color: #697478; font: 8px/1 var(--mono); letter-spacing: .12em; }
.evidence-link { margin-top: 22px; }
.circuit { padding-top: 38px; padding-bottom: 92px; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 36px; }
.mono-label { display: flex; align-items: start; gap: 10px; color: #9fa4a3; font-size: 9px; letter-spacing: .14em; }
.section-head h2, .board-heading h2 { margin: 18px 0 0; font: 400 clamp(62px, 8.1vw, 108px)/.96 var(--display); letter-spacing: -.035em; }
.section-head h2 span { color: var(--red); }
.section-head>p { margin: 0 0 4px; color: #929796; font-size: 13px; text-align: right; }
.circuit-list { border-top: 1px solid var(--line); }
.circuit-row { min-height: 132px; display: grid; grid-template-columns: 50px 57px 160px minmax(200px, 1fr) 150px; align-items: center; column-gap: 16px; padding: 17px 15px 17px 0; border-bottom: 1px solid var(--line); transition: background .2s ease, padding .2s ease; }
.circuit-row:hover { background: #11181d; padding-left: 13px; }
.row-no { align-self: start; margin-top: 27px; color: var(--red); font-size: 11px; }
.row-glyph { width: 42px; height: 42px; display: grid; place-items: center; color: var(--cyan); border: 1px solid #455057; font: 500 20px/1 var(--jp); }
.row-type { color: #828a8c; font-size: 8px; letter-spacing: .12em; }
.row-main { display: flex; flex-direction: column; gap: 5px; }
.row-main strong { color: var(--paper); font: 400 clamp(30px, 3.5vw, 46px)/.98 var(--display); letter-spacing: -.02em; }
.row-main small { color: #999f9f; font-size: 12px; line-height: 1.5; }
.row-open { justify-self: end; color: #bec1bd; font-size: 9px; letter-spacing: .09em; white-space: nowrap; }
.row-open b { padding-left: 8px; color: var(--red); font-size: 14px; font-weight: 400; }
.circuit-row:hover .row-open { color: var(--cyan); }
.circuit-upcoming { cursor: default; opacity: .52; }
.circuit-upcoming:hover { padding-left: 0; background: transparent; }
.feature-band { min-height: 440px; position: relative; overflow: hidden; display: flex; align-items: center; background: var(--panel); }
.feature-image { position: absolute; inset: 0 48% 0 0; background: url("/tokyo-noir.webp") 53% 64% / cover no-repeat; filter: saturate(.6) contrast(1.12); }
.feature-band::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 23%, var(--panel) 54%, var(--panel) 100%); z-index: 1; }
.feature-content { width: 48%; margin-left: 52%; padding: 70px 9vw 70px 0; position: relative; z-index: 2; }
.feature-content .mono-label { margin-bottom: 32px; }
.feature-jp { color: var(--cyan); font: 500 13px/1 var(--jp); letter-spacing: .17em; margin-bottom: 14px; }
.feature-content h2 { margin: 0 0 17px; color: var(--paper); font: 400 clamp(57px, 6.6vw, 86px)/.9 var(--display); letter-spacing: -.02em; }
.feature-content>p:not(.feature-jp) { max-width: 390px; margin: 0; color: #adb1af; font-size: 14px; line-height: 1.8; }
.feature-stamp { position: absolute; left: 5vw; top: 50%; z-index: 2; transform: translateY(-50%) rotate(-8deg); color: var(--red); border: 2px solid var(--red); padding: 8px 13px; font-size: 10px; line-height: 1.25; letter-spacing: .14em; text-align: center; opacity: .9; }
.board-preview { padding-top: 110px; padding-bottom: 114px; }
.board-heading { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 39px; }
.board-heading h2 { font-size: clamp(70px, 9vw, 118px); }
.button-ghost { border: 1px solid #60696d; color: var(--paper); margin-bottom: 5px; }
.button-ghost span { color: var(--red); }
.button-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.preview-threads { border-top: 1px solid var(--line); }
.preview-thread { min-height: 82px; display: grid; grid-template-columns: 94px 150px minmax(0, 1fr) 30px; align-items: center; gap: 20px; padding: 12px 12px 12px 0; border-bottom: 1px solid var(--line); transition: .18s ease; }
.preview-thread:hover { background: #10171c; padding-left: 12px; }
.thread-id { color: #737d81; font-size: 9px; letter-spacing: .08em; }
.thread-tag { color: var(--cyan); font-size: 8px; letter-spacing: .12em; }
.thread-question { color: #e2e3df; font-size: 14px; }
.thread-go { justify-self: end; color: var(--red); }
.board-footnote { display: flex; justify-content: space-between; gap: 20px; padding-top: 18px; color: #737c7f; font-size: 8px; letter-spacing: .12em; }
.board-footnote a { color: var(--paper); }
.board-footnote b { padding-left: 9px; color: var(--red); font-size: 14px; }
.site-footer { min-height: 90px; border-top: 1px solid var(--line); padding: 20px 5.2vw; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: #06080b; }
.site-footer .wordmark { font-size: 12px; }
.site-footer .wordmark-stamp { width: 28px; height: 28px; font-size: 14px; }
.footer-line { color: #778083; font-size: 8px; letter-spacing: .11em; }
.site-footer>div { display: flex; gap: 20px; }
.site-footer>div a { color: #b2b7b6; font-size: 8px; letter-spacing: .1em; }
.site-footer>div a:hover { color: var(--cyan); }

/* Topic board */
.board-cover { min-height: 380px; position: relative; overflow: hidden; display: flex; align-items: center; background: #0b0e12; }
.board-cover-photo, .board-cover-shade { position: absolute; inset: 0; }
.board-cover-photo { background: url("/tokyo-noir.webp") 58% 38% / cover no-repeat; filter: saturate(.6) contrast(1.12); }
.board-cover-shade { background: linear-gradient(90deg, #080b0f 0%, #080b0fe8 27%, #080b0f89 64%, #080b0f45 100%), linear-gradient(0deg, #080b0f 0%, transparent 42%); }
.board-cover-copy { position: relative; z-index: 1; margin: 36px 0 44px 10.5vw; width: min(700px, 68vw); }
.board-cover-copy h1 { margin: 32px 0 15px -4px; color: var(--paper); font: 400 clamp(88px, 12vw, 158px)/.92 var(--display); letter-spacing: -.035em; }
.board-cover-copy h1 em { color: var(--red); font-style: normal; }
.board-cover-copy>p { max-width: 480px; color: #c1c5c2; font-size: 16px; }
.cover-coordinates { margin-top: 28px; color: var(--cyan); font-size: 9px; letter-spacing: .13em; }
.board-vertical { position: absolute; right: 5.5vw; top: 25%; z-index: 1; writing-mode: vertical-rl; color: var(--paper); font: 500 11px/1 var(--jp); letter-spacing: .13em; }
.topics-shell { padding-top: 65px; padding-bottom: 74px; }
.topics-tools { display: flex; justify-content: space-between; align-items: end; gap: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.board-total { display: flex; flex-direction: column; gap: 7px; }
.board-total .mono-label { font-size: 8px; letter-spacing: .13em; }
.board-total strong { color: var(--red); font: 600 45px/.9 var(--display); }
.board-total strong small { color: #90999b; font: 9px/1 var(--mono); letter-spacing: .12em; }
.search-box { width: min(360px, 100%); display: flex; align-items: center; gap: 11px; padding: 11px 0; border-bottom: 1px solid #697175; }
.search-glyph { color: var(--cyan); font: 26px/1 var(--body); }
.search-box input { width: 100%; min-width: 0; color: var(--paper); background: transparent; border: 0; outline: 0; font: 10px/1.5 var(--mono); letter-spacing: .08em; }
.search-box input::placeholder { color: #80898c; }
.search-box kbd { color: #737c80; font: 8px/1 var(--mono); white-space: nowrap; }
.topic-filter-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 18px 0 20px; border-bottom: 1px solid var(--line); }
.filter-label { color: #747d80; font-size: 8px; letter-spacing: .15em; margin-right: 7px; }
.filter-chip { padding: 8px 10px; border: 1px solid #3a4449; background: transparent; color: #aab0ae; cursor: pointer; font-size: 8px; letter-spacing: .08em; transition: .15s ease; }
.filter-chip:hover { border-color: var(--cyan); color: var(--cyan); }
.filter-chip.selected { color: var(--void); border-color: var(--cyan); background: var(--cyan); }
.topic-table-head { display: grid; grid-template-columns: 70px minmax(0, 1fr) 48px; gap: 16px; padding: 14px 8px 12px 0; color: #747d80; font-size: 8px; letter-spacing: .14em; border-bottom: 1px solid #3a4449; }
.topic-table-head span:first-child { grid-column: 1; }
.topic-table-head span:nth-child(2) { grid-column: 2; }
.topic-table-head span:last-child { grid-column: 3; text-align: right; }
.thread { min-height: 133px; display: grid; grid-template-columns: 70px minmax(0,1fr) 48px; gap: 16px; align-items: center; padding: 19px 5px 19px 0; border-bottom: 1px solid var(--line); transition: background .18s ease, padding .18s ease; }
.thread:hover { padding-left: 12px; background: #10171b; }
.thread-number { align-self: start; padding-top: 3px; color: var(--red); font-size: 11px; letter-spacing: .08em; }
.thread-subject { min-width: 0; }
.thread-category { color: var(--cyan); font: 500 8px/1.4 var(--mono); letter-spacing: .14em; }
.thread-subject h2 { margin: 7px 0 5px; color: var(--paper); font: 500 21px/1.2 var(--body); letter-spacing: -.02em; }
.thread-subject p { max-width: 760px; margin: 0 0 10px; color: #9fa5a4; font-size: 12px; line-height: 1.6; }
.thread-ask { color: #667175; font-size: 8px; letter-spacing: .12em; }
.thread-sigil { display: grid; place-items: center; width: 42px; height: 42px; color: #7f8c91; border: 1px solid #39464b; font: 500 19px/1 var(--jp); }
.thread-open { width: 32px; height: 32px; display: grid; place-items: center; color: var(--red); border: 1px solid #4c3937; font-size: 13px; transition: .15s ease; }
.thread-open:hover { color: var(--void); background: var(--red); }
.empty-state { padding: 40px 0; color: var(--cyan); font: 10px/1.6 var(--mono); letter-spacing: .1em; text-align: center; }
.topics-bottom-line { display: flex; justify-content: space-between; gap: 18px; padding-top: 19px; color: #747d80; font-size: 8px; letter-spacing: .12em; }
.topics-bottom-line a { color: var(--paper); }
.topics-bottom-line b { margin-left: 8px; color: var(--red); }
.invite-strip { display: flex; justify-content: center; align-items: center; gap: 44px; min-height: 230px; padding: 42px 6vw; background: var(--panel-light); border-top: 1px solid var(--line); }
.post-guide { padding-top: 88px; padding-bottom: 92px; border-top: 1px solid var(--line); }
.post-guide-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 34px; }
.post-guide-head h2 { margin: 18px 0 0; color: var(--paper); font: 400 clamp(62px, 8.1vw, 108px)/.96 var(--display); letter-spacing: -.035em; }
.post-guide-head h2 span { color: var(--red); }
.post-guide-head>p { margin: 0 0 4px; color: #929796; font-size: 13px; text-align: right; }
.clue-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.clue { min-height: 170px; padding: 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0c1217; }
.clue>span { color: var(--red); font: 10px/1 var(--mono); letter-spacing: .1em; }
.clue strong { display: block; margin: 33px 0 9px; color: var(--paper); font: 400 20px/.95 var(--display); letter-spacing: -.015em; }
.clue p { margin: 0; color: #929b9b; font-size: 12px; line-height: 1.55; }
.house-rules { padding-top: 88px; padding-bottom: 92px; border-top: 1px solid var(--line); }
.house-rules-head { margin-bottom: 34px; }
.house-rules-head h2 { margin: 18px 0 0; color: var(--paper); font: 400 clamp(62px, 8.1vw, 108px)/.96 var(--display); letter-spacing: -.035em; }
.house-rules-head h2 span { color: var(--red); }
.house-rules-head>p { margin: 0 0 4px; color: #929796; font-size: 13px; text-align: right; }
.rules-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.rule { min-height: 157px; padding: 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #0c1217; }
.rule>span { color: var(--red); font: 10px/1 var(--mono); letter-spacing: .1em; }
.rule strong { display: block; margin: 32px 0 9px; color: var(--paper); font: 400 19px/.95 var(--display); letter-spacing: -.015em; }
.rule p { margin: 0; color: #929b9b; font-size: 12px; line-height: 1.55; }
.confidence-strip { display: grid; grid-template-columns: minmax(220px, .8fr) 1.2fr; gap: 42px; align-items: start; padding-top: 34px; padding-bottom: 38px; background: #0c1217; border-top: 1px solid var(--line); }
.confidence-strip p { max-width: 350px; margin: 13px 0 0; color: #929b9b; font-size: 12px; line-height: 1.6; }
.confidence-levels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.confidence-levels span { padding-left: 12px; border-left: 1px solid #435057; color: #929b9b; font-size: 11px; line-height: 1.5; }
.confidence-levels b { display: block; margin-bottom: 5px; color: var(--paper); font: 8px/1 var(--mono); letter-spacing: .11em; }
.invite-kanji { color: var(--red); font: 76px/1 var(--jp); }
.invite-strip .mono-label { margin-bottom: 10px; }
.invite-strip h2 { margin: 0 0 6px; color: var(--paper); font: 400 52px/.98 var(--display); letter-spacing: -.025em; }
.invite-strip p { max-width: 420px; margin: 0; color: #9fa5a4; font-size: 13px; }
.about-copy { max-width: 760px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; color: #a8afad; font-size: 16px; line-height: 1.75; }
.about-copy p { margin: 0; }
.about-copy > h1 { grid-column: 1 / -1; margin: 4px 0 0; color: var(--paper); font: 800 clamp(58px, 9vw, 118px)/.88 var(--display); letter-spacing: -.04em; }
.about-lead { grid-column: 1 / -1; max-width: 620px; color: #c5c7c2; font-size: clamp(19px, 2.4vw, 27px); line-height: 1.25; }
.about-grid { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin-top: 12px; border-top: 1px solid #29343a; }
.about-grid article { padding: 24px 22px 25px 0; border-bottom: 1px solid #29343a; }
.about-grid h2 { margin: 14px 0 8px; color: var(--paper); font: 800 italic clamp(26px, 3.5vw, 42px)/.95 var(--display); }
.about-grid p { margin: 0; max-width: 430px; color: #a8afad; font-size: 15px; line-height: 1.65; }
.about-signoff { grid-column: 1 / -1; display: flex; gap: 28px; align-items: baseline; padding-top: 24px; color: #a8afad; }
.about-signoff p { max-width: 540px; margin: 0; font-size: 16px; line-height: 1.6; }
.field-notes { padding-top: 86px; padding-bottom: 92px; border-top: 1px solid #29343a; }
.field-note-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 30px; border-top: 1px solid #29343a; border-bottom: 1px solid #29343a; }
.field-note { min-height: 280px; padding: 22px 22px 24px 0; border-right: 1px solid #29343a; display: flex; flex-direction: column; }
.field-note:last-child { border-right: 0; }
.field-note-no { color: var(--red); font: 10px/1 var(--mono); letter-spacing: .12em; }
.field-note h3 { margin: 42px 20px 12px 0; color: var(--paper); font: 800 italic clamp(26px, 3vw, 39px)/.92 var(--display); letter-spacing: -.02em; }
.field-note p { margin: 0 18px 20px 0; color: #a8afad; font-size: 14px; line-height: 1.7; }
.field-note-confidence { margin-top: auto; color: #7c898b; font: 9px/1.3 var(--mono); letter-spacing: .11em; }
.field-note-links { display: flex; flex-wrap: wrap; gap: 28px; }
.field-note-reading { max-width: 980px; padding-top: 78px; padding-bottom: 84px; }
.field-note-article { padding: 0 0 66px; margin-bottom: 66px; border-bottom: 1px solid #29343a; }
.field-note-article:last-child { margin-bottom: 0; }
.field-note-article h2 { max-width: 800px; margin: 24px 0 20px; color: var(--paper); font: 800 italic clamp(42px, 6vw, 78px)/.92 var(--display); letter-spacing: -.035em; }
.field-note-article p { max-width: 710px; margin: 0 0 16px; color: #b1b7b4; font-size: 17px; line-height: 1.75; }
.field-note-article .field-note-confidence { margin-top: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }
@media (max-width: 900px) {
  .masthead { padding: 0 4vw; }
  .masthead nav { gap: 20px; }
  .cover-copy, .board-cover-copy { margin-left: 7vw; }
  .cover h1 { font-size: clamp(82px, 12vw, 108px); }
  .manifesto { grid-template-columns: 110px 1.2fr .9fr; gap: 22px; }
  .circuit-row { grid-template-columns: 37px 47px 128px minmax(180px,1fr) 125px; column-gap: 10px; }
  .feature-content { padding-right: 5vw; }
  .feature-stamp { left: 3vw; }
  .page-gutter { padding-left: 5vw; padding-right: 5vw; }
}
@media (max-width: 640px) {
  .install-app { margin-left: 5px; padding: 7px 8px; font-size: 8px; }
  body { font-size: 15px; }
  .masthead { height: auto; min-height: 68px; padding: 12px 18px; flex-wrap: wrap; gap: 10px; }
  .wordmark { font-size: 11px; gap: 8px; }
  .wordmark-stamp { width: 29px; height: 29px; font-size: 15px; }
  .masthead nav { order: 3; width: 100%; height: 35px; justify-content: space-between; gap: 10px; }
  .masthead nav a { font-size: 9px; }
  .masthead nav .nav-active::after { bottom: -8px; }
  .section-menu { margin-left: auto; }
  .section-menu summary { padding: 8px 9px; font-size: 8px; }
  .section-menu-panel { position: fixed; top: 76px; right: 16px; z-index: 50; width: min(350px, calc(100vw - 32px)); max-height: calc(100svh - 92px); overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
  .section-menu-panel a { min-height: 44px; font-size: 12px; }
  .after-hours { padding: 8px 9px; font-size: 8px; }
  .cover { height: 392px; min-height: 392px; align-items: flex-start; }
  .cover-photo { background-position: 55% center; }
  .cover-shade { background: linear-gradient(90deg, #080b0ff2 0%, #080b0fc7 58%, #080b0f42 100%), linear-gradient(0deg, #080b0f 0%, transparent 31%, #080b0f55 100%); }
  .cover::before { inset: 10px; }
  .cover-copy { width: calc(100% - 40px); margin: 20px 20px 58px; transform: translateY(-7px); }
  .cover-kicker { font-size: 8px; }
  .cover-overline { margin: 20px 0 10px; font-size: 8px; }
  .cover h1 { font-size: clamp(52px, 13vw, 78px); margin-left: -4px; line-height: .88; letter-spacing: -.08em; }
  .cover-deck { max-width: 260px; font-size: 14px; line-height: 1.3; }
  .cover-actions { align-items: flex-start; flex-direction: column; gap: 10px; margin-top: 14px; }
  .cover-bottom { left: 20px; right: 20px; bottom: 11px; flex-wrap: wrap; font-size: 7px; gap: 5px 12px; }
  .cover-bottom span:nth-child(2) { order: 3; width: 100%; }
  .photo-credit { font-size: 7px; }
  .cover-side-note { right: 22px; top: 23%; font-size: 8px; }
  .cover-index { right: 23px; bottom: 24%; font-size: 9px; }
  .signal-strip { min-height: 43px; padding: 0; font-size: 8px; overflow: hidden; }
  .signal-track { min-height: 43px; gap: 28px; padding: 0 22px; }
  .page-gutter { padding-left: 22px; padding-right: 22px; }
  .manifesto { display: block; min-height: 0; padding-top: 58px; padding-bottom: 60px; }
  .manifesto-label { margin-bottom: 29px; }
  .manifesto h2 { font-size: clamp(44px, 12vw, 66px); margin: 0 0 23px; }
  .manifesto-note { font-size: 14px; }
  .manifesto-kanji { right: -20px; bottom: -35px; font-size: 210px; }
  .culture-map { padding-top: 56px; padding-bottom: 61px; }
  .culture-map-head { margin-bottom: 25px; }
  .culture-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .culture-card { min-height: 190px; padding: 13px; }
  .culture-icon { right: 11px; top: 11px; font-size: 38px; }
  .culture-card h3 { margin-top: 31px; font-size: 22px; }
  .culture-card p { font-size: 10px; line-height: 1.45; }
  .culture-arrow { padding-top: 12px; font-size: 7px; }
  .faq-section { padding-top: 56px; padding-bottom: 61px; }
  .faq-head { margin-bottom: 25px; }
  .faq-list summary { padding: 17px 0; font-size: 24px; line-height: .98; }
  .faq-list details p { margin: 0 10px 21px 0; font-size: 13px; line-height: 1.65; }
  .glossary-section { padding-top: 56px; padding-bottom: 61px; }
  .glossary-head { margin-bottom: 25px; }
  .glossary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .glossary-item { min-height: 178px; padding: 13px; }
  .glossary-item h3 { margin-top: 16px; font-size: 21px; }
  .glossary-item p { font-size: 10px; line-height: 1.48; }
  .era-index { padding-top: 56px; padding-bottom: 61px; }
  .era-index-head { margin-bottom: 25px; }
  .era-row { grid-template-columns: 76px minmax(0, 1fr) 25px; gap: 10px; padding: 17px 0; }
  .era-date { font-size: 7px; line-height: 1.4; }
  .era-row h3 { font-size: 21px; }
  .era-row p { font-size: 11px; line-height: 1.52; }
  .era-mark { font-size: 8px; }
  .era-note { font-size: 7px; }
  .evidence-desk { padding-top: 56px; padding-bottom: 61px; }
  .evidence-head { margin-bottom: 25px; }
  .evidence-head h2 { font-size: clamp(54px, 14vw, 76px); }
  .evidence-head>p { margin-top: 19px; text-align: left; font-size: 12px; }
  .evidence-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .evidence-card { min-height: 194px; padding: 13px; }
  .evidence-card h3 { margin-top: 25px; font-size: 20px; }
  .evidence-card p { font-size: 10px; line-height: 1.48; }
  .evidence-kind { margin-top: 15px; font-size: 7px; }
  .circuit { padding-top: 25px; padding-bottom: 78px; }
  .section-head { display: block; margin-bottom: 25px; }
  .section-head h2 { font-size: clamp(54px, 14vw, 76px); }
  .section-head>p { margin-top: 19px; text-align: left; font-size: 12px; }
  .circuit-row { grid-template-columns: 34px 40px minmax(0,1fr); min-height: 122px; gap: 8px 10px; padding: 18px 5px 17px 0; }
  .row-no { grid-row: 1 / 3; margin-top: 4px; }
  .row-glyph { grid-column: 2; grid-row: 1 / 3; width: 36px; height: 36px; font-size: 17px; }
  .row-type { grid-column: 3; grid-row: 1; font-size: 7px; }
  .row-main { grid-column: 3; grid-row: 2; }
  .row-main strong { font-size: 36px; }
  .row-main small { max-width: 300px; font-size: 11px; }
  .row-open { grid-column: 3; grid-row: 3; justify-self: start; margin-top: 5px; font-size: 8px; }
  .circuit-row:hover { padding-left: 8px; }
  .feature-band { min-height: 550px; align-items: flex-end; }
  .feature-image { inset: 0; background-position: 50% 39%; }
  .feature-band::before { background: linear-gradient(0deg, rgba(16,21,27,1) 0%, rgba(16,21,27,.91) 37%, transparent 100%); }
  .feature-content { width: 100%; margin: 0; padding: 210px 24px 45px; }
  .feature-content .mono-label { margin-bottom: 25px; }
  .feature-content h2 { font-size: 72px; }
  .feature-content>p:not(.feature-jp) { font-size: 13px; }
  .feature-stamp { left: auto; right: 22px; top: 24px; transform: rotate(7deg); }
  .about-copy { display: block; font-size: 14px; line-height: 1.65; }
  .about-copy p + p { margin-top: 18px; }
  .about-copy > h1 { margin: 2px 0 18px; font-size: clamp(52px, 15vw, 82px); }
  .about-lead { font-size: 19px; margin-bottom: 28px !important; }
  .about-grid { display: block; margin-top: 22px; }
  .about-grid article { padding: 20px 0; }
  .about-grid h2 { margin: 10px 0 7px; font-size: 31px; }
  .about-grid p { font-size: 15px; }
  .about-signoff { display: block; padding-top: 24px; }
  .about-signoff p { margin-top: 13px; font-size: 15px; }
  .field-notes { padding-top: 62px; padding-bottom: 66px; }
  .field-note-grid { display: block; margin-top: 22px; }
  .field-note { min-height: 0; padding: 21px 0 23px; border-right: 0; border-bottom: 1px solid #29343a; }
  .field-note:last-child { border-bottom: 0; }
  .field-note h3 { margin: 27px 0 10px; font-size: 31px; }
  .field-note p { margin-right: 0; font-size: 15px; }
  .field-note-reading { padding-top: 57px; padding-bottom: 65px; }
  .field-note-article { padding-bottom: 44px; margin-bottom: 44px; }
  .field-note-article h2 { margin: 20px 0 16px; font-size: clamp(38px, 11vw, 61px); }
  .field-note-article p { font-size: 16px; line-height: 1.7; }
  .board-preview { padding-top: 78px; padding-bottom: 77px; }
  .board-heading { align-items: start; flex-direction: column; margin-bottom: 27px; }
  .board-heading h2 { font-size: clamp(60px, 15vw, 91px); }
  .button-ghost { min-height: 42px; margin: 0; }
  .preview-thread { grid-template-columns: 56px minmax(0,1fr) 20px; gap: 8px; min-height: 87px; padding: 12px 5px 12px 0; }
  .preview-thread:hover { padding-left: 7px; }
  .thread-id { grid-row: 1 / 3; align-self: start; padding-top: 4px; font-size: 8px; }
  .thread-tag { grid-column: 2; grid-row: 1; font-size: 7px; }
  .thread-question { grid-column: 2; grid-row: 2; font-size: 12px; line-height: 1.4; }
  .thread-go { grid-column: 3; grid-row: 1 / 3; }
  .board-footnote { flex-direction: column; gap: 10px; font-size: 7px; }
  .site-footer { align-items: start; flex-wrap: wrap; padding: 22px; }
  .footer-line { order: 3; width: 100%; font-size: 7px; }
  .site-footer>div { gap: 13px; }
  .site-footer>div a { font-size: 7px; }
  .board-cover { min-height: 390px; align-items: end; }
  .board-cover-photo { background-position: 55% 40%; }
  .board-cover-shade { background: linear-gradient(0deg, #080b0f 0%, #080b0fba 52%, #080b0f50 100%), linear-gradient(90deg, #080b0fbd, transparent); }
  .board-cover-copy { width: calc(100% - 44px); margin: 0 22px 34px; }
  .board-cover-copy h1 { margin: 29px 0 13px; font-size: clamp(56px, 14vw, 88px); line-height: .96; letter-spacing: -.065em; }
  .board-cover-copy>p { font-size: 14px; max-width: 380px; }
  .cover-coordinates { margin-top: 17px; font-size: 8px; }
  .board-vertical { right: 19px; top: 15%; font-size: 8px; }
  .topics-shell { padding-top: 49px; padding-bottom: 55px; }
  .topics-tools { align-items: stretch; flex-direction: column; gap: 18px; padding-bottom: 17px; }
  .board-total strong { font-size: 39px; }
  .search-box { width: 100%; }
  .topic-filter-row { gap: 6px; padding: 14px 0; }
  .filter-label { width: 100%; margin: 0 0 3px; }
  .filter-chip { padding: 8px 7px; font-size: 7px; }
  .topic-table-head { grid-template-columns: 37px minmax(0,1fr) 28px; gap: 8px; font-size: 7px; }
  .thread { min-height: 0; grid-template-columns: 37px minmax(0,1fr) 30px; gap: 8px; padding: 16px 0; }
  .thread:hover { padding-left: 7px; }
  .thread-number { font-size: 9px; }
  .thread-subject h2 { font-size: 16px; line-height: 1.25; }
  .thread-subject p { font-size: 11px; }
  .thread-ask { font-size: 7px; }
  .thread-sigil { display: none; }
  .thread-open { width: auto; height: auto; right: 12px; bottom: 12px; padding: 6px 7px; font-size: 8px; }
  .save-thread { right: 12px; bottom: 40px; padding: 6px 7px; font-size: 8px; }
  .thread { padding-right: 78px; }
  .topics-bottom-line { flex-direction: column; font-size: 7px; }
  .post-guide { padding-top: 70px; padding-bottom: 74px; }
  .post-guide-head { display: block; margin-bottom: 25px; }
  .post-guide-head h2 { font-size: clamp(54px, 14vw, 76px); }
  .post-guide-head>p { margin-top: 19px; text-align: left; font-size: 12px; }
  .clue-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .clue { min-height: 168px; padding: 13px; }
  .clue strong { margin-top: 25px; font-size: 18px; }
  .clue p { font-size: 10px; line-height: 1.48; }
  .house-rules { padding-top: 70px; padding-bottom: 74px; }
  .house-rules-head { display: block; margin-bottom: 25px; }
  .house-rules-head h2 { font-size: clamp(54px, 14vw, 76px); }
  .house-rules-head>p { margin-top: 19px; text-align: left; font-size: 12px; }
  .rules-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rule { min-height: 163px; padding: 13px; }
  .rule strong { margin-top: 25px; font-size: 17px; }
  .rule p { font-size: 10px; line-height: 1.48; }
  .confidence-strip { display: block; padding-top: 29px; padding-bottom: 32px; }
  .confidence-strip p { font-size: 11px; }
  .confidence-levels { grid-template-columns: 1fr; gap: 12px; margin-top: 23px; }
  .confidence-levels span { font-size: 10px; }
  .invite-strip { justify-content: flex-start; flex-wrap: wrap; gap: 17px; padding: 39px 22px 43px; }
  .invite-kanji { font-size: 54px; }
  .invite-strip>div { flex: 1 1 calc(100% - 75px); }
  .invite-strip h2 { font-size: 42px; }
  .invite-strip p { font-size: 12px; }
  .invite-strip .button { margin-left: 72px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; } }

/* Keep navigation, controls and metadata legible at small viewports. */
.masthead nav a, .after-hours, .cover-kicker, .cover-overline, .cover-bottom,
.cover-side-note, .cover-index, .photo-credit, .mono-label, .signal-strip,
.manifesto-label, .row-no, .row-type, .row-open, .board-footnote, .thread-id,
.thread-tag, .thread-go, .cover-coordinates, .board-total .mono-label,
.search-box input, .search-box kbd, .filter-label, .filter-chip,
.topic-table-head, .thread-number, .thread-category, .thread-ask,
.topics-bottom-line, .footer-line, .site-footer > div a { font-size: .75rem; }
.button { font-size: .75rem; }
.row-main small, .thread-subject p { font-size: .8125rem; }
.wordmark { font-size: .75rem; }

/* Responsive guardrails for narrow phones and wide desktop screens. */
html, body { max-width: 100%; overflow-x: hidden; }
.cover-copy, .board-cover-copy, .feature-content, .row-main, .thread-subject, .site-footer > div { min-width: 0; }
.row-main strong, .thread-subject h2, .invite-strip h2 { overflow-wrap: anywhere; }
.site-footer > div { flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 640px) {
  .cover h1 { font-size: clamp(54px, 16vw, 92px); letter-spacing: -.06em; }
  .cover-deck { max-width: 300px; }
  .site-footer { column-gap: 14px; row-gap: 16px; }
  .site-footer > div { max-width: 100%; justify-content: flex-start; gap: 9px 13px; }
  .site-footer > div a { white-space: nowrap; }
}

/* Keep the hero title inside the narrowest phone preview. */
@media (max-width: 640px) {
  .cover-copy { width: calc(100% - 40px); max-width: 340px; }
  .cover h1 { display: block; max-width: 100%; font-size: clamp(48px, 12vw, 76px); line-height: .92; letter-spacing: -.065em; white-space: normal; }
  .cover h1 em { display: inline-block; max-width: 100%; }
.board-cover-copy h1 { max-width: 100%; font-size: clamp(48px, 12vw, 76px); }
}

/* Project marks keep the three connected sites visible as brands, not just text links. */
.brand-deck { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }
.brand-card { min-height: 142px; display: flex; flex-direction: column; justify-content: space-between; padding: 18px 18px 15px; position: relative; overflow: hidden; border: 1px solid #3a454b; background: #0d1318; transition: transform .18s ease, border-color .18s ease; }
.brand-card::after { content: ""; position: absolute; width: 110px; height: 110px; right: -30px; bottom: -42px; border: 1px solid currentColor; opacity: .2; transform: rotate(45deg); }
.brand-card:hover { transform: translateY(-3px); border-color: var(--cyan); }
.brand-symbol { color: var(--red); font: 500 28px/1 var(--jp); }
.brand-name { color: var(--paper); font: 400 clamp(23px, 3vw, 37px)/.86 var(--display); letter-spacing: -.02em; }
.brand-name b { color: currentColor; font-weight: 400; }
.brand-link { color: #9da5a4; font: 8px/1 var(--mono); letter-spacing: .13em; }
.archive-mark { color: var(--cyan); }
.confidential-mark { color: #ff8d83; }

/* Slanted condensed display type gives the headings a sharp 1980s poster feel. */
:is(.cover h1, .manifesto h2, .culture-card h3, .faq-list summary, .glossary-item h3,
    .era-row h3, .section-head h2, .board-heading h2, .row-main strong,
    .feature-content h2, .board-cover-copy h1, .post-guide-head h2,
    .clue strong, .house-rules-head h2, .rule strong, .invite-strip h2,
    .brand-name) {
  font-style: italic !important;
  font-weight: 800 !important;
}
.tsunami-mark { color: #f4c96a; }
.brand-card-logo { width: 100%; height: 92px; display: block; object-fit: contain; object-position: center; background: #050607; filter: saturate(.92) contrast(1.04); }
.save-thread { position: absolute; right: 22px; bottom: 52px; border: 1px solid #455057; background: transparent; color: #9da5a4; padding: 7px 10px; font: 10px/1 var(--mono); letter-spacing: .12em; cursor: pointer; transition: border-color .18s ease, color .18s ease, background .18s ease; }
.save-thread:hover, .save-thread:focus-visible { border-color: var(--cyan); color: var(--cyan); outline: none; }
.save-thread.is-saved { border-color: var(--red); color: var(--paper); background: rgba(240, 64, 53, .16); }
.thread { position: relative; padding-right: 96px; }
.thread { cursor: pointer; }
.thread:focus-visible { outline: 2px solid var(--cyan); outline-offset: -2px; }
.thread-open { position: absolute; right: 22px; bottom: 18px; width: auto; height: auto; padding: 7px 10px; font: 10px/1 var(--mono); letter-spacing: .1em; cursor: pointer; }
.thread-local-count { position: absolute; left: 5px; bottom: 9px; color: var(--cyan); font: 8px/1 var(--mono); letter-spacing: .08em; }
.topic-modal[hidden] { display: none; }
.topic-modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 22px; }
.topic-modal-backdrop { position: absolute; inset: 0; background: rgba(2, 5, 8, .84); backdrop-filter: blur(8px); }
.topic-modal-card { position: relative; width: min(680px, 100%); max-height: calc(100svh - 44px); overflow-y: auto; padding: clamp(28px, 5vw, 54px); border: 1px solid #435057; background: #0b1116; box-shadow: 0 24px 80px #000d; }
.topic-modal-close { position: absolute; top: 14px; right: 16px; border: 0; background: transparent; color: #b9c0be; font: 28px/1 var(--body); cursor: pointer; }
.topic-modal-category { display: block; margin-top: 22px; color: var(--cyan); font: 10px/1.4 var(--mono); letter-spacing: .16em; }
.topic-modal-card h2 { margin: 10px 0 14px; color: var(--paper); font: 800 italic clamp(28px, 5vw, 48px)/1.05 var(--display); }
.topic-modal-card > p { margin: 0; color: #b1b8b6; font-size: 16px; line-height: 1.65; }
.topic-modal-prompt { margin: 28px 0; padding-top: 18px; border-top: 1px solid var(--line); color: #778287; font: 10px/1.7 var(--mono); letter-spacing: .1em; }
.topic-contribute { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); }
.topic-contribute > label { display: block; margin-bottom: 8px; color: var(--cyan); font: 10px/1.2 var(--mono); letter-spacing: .13em; }
.topic-contribute > label span { color: #737d80; }
.topic-contribute textarea { width: 100%; min-height: 92px; padding: 12px; resize: vertical; border: 1px solid #435057; background: #080d11; color: var(--paper); font: 15px/1.5 var(--body); }
.topic-contribute textarea:focus, .topic-contribute input:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.topic-photo-label { margin-top: 16px; }
.topic-contribute input[type="file"] { width: 100%; color: #9da5a4; font: 12px/1.4 var(--body); }
.topic-photo-preview { min-height: 18px; margin: 7px 0 15px; color: #7e898c; font: 10px/1.4 var(--mono); }
.topic-contribute .button { margin-top: 15px; border: 1px solid var(--red); cursor: pointer; }
.topic-local-note { display: block; margin-top: 9px; color: #687376; font: 10px/1.4 var(--mono); letter-spacing: .04em; }
.topic-contribute-status { min-height: 18px; margin-top: 10px; color: var(--cyan); font: 10px/1.4 var(--mono); letter-spacing: .06em; }
.topic-contributions { margin-top: 22px; }
.topic-contribution { margin-top: 10px; padding: 13px; border-left: 2px solid var(--cyan); background: #0c141a; color: #b9c0be; font-size: 14px; line-height: 1.55; }
.topic-contribution img { display: block; max-width: 100%; max-height: 220px; margin-top: 12px; object-fit: contain; }
.topic-modal-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.topic-modal-actions .topic-modal-return { margin-top: 0; border: 1px solid var(--red); }
body.topic-modal-open { overflow: hidden; }
.start-topic { margin: 20px 0 0 auto; display: block; cursor: pointer; }
.topic-input { width: 100%; padding: 12px; border: 1px solid #435057; background: #080d11; color: var(--paper); font: 15px/1.45 var(--body); }
.topic-input:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.topic-composer .topic-modal-card > p { max-width: 580px; }
@media (min-width: 641px) { .topics-tools .start-topic { margin-top: 0; } }
.source-note { padding-top: 24px; padding-bottom: 34px; border-top: 1px solid var(--line); color: #919b9c; font-size: 12px; line-height: 1.65; }
.page-intro { padding-top: 58px; padding-bottom: 42px; border-bottom: 1px solid var(--line); }
.origin-quicklink { display: flex; align-items: center; gap: 9px; width: fit-content; margin: 14px clamp(20px, 5vw, 72px) 0 auto; color: var(--cyan); font: 10px/1.2 var(--mono); letter-spacing: .1em; }
.origin-quicklink span { color: var(--red); font-size: 17px; } .origin-quicklink b { color: var(--red); font-weight: 400; }
.page-intro h1 { margin: 18px 0 16px; color: var(--paper); font: 800 italic clamp(58px, 10vw, 126px)/.86 var(--display); letter-spacing: -.05em; }
.page-intro p { max-width: 580px; margin: 0; color: #a8afad; font-size: clamp(17px, 2vw, 23px); line-height: 1.45; }
.page-intro + .culture-map, .page-intro + .faq-section, .page-intro + .circuit { padding-top: 52px; }
.origin-map-shell { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: clamp(28px, 6vw, 86px); align-items: center; padding-top: 58px; padding-bottom: 68px; }
.origin-globe-wrap { min-width: 0; }
.origin-globe { position: relative; width: min(100%, 520px); aspect-ratio: 1; margin: 0 auto; overflow: hidden; border: 1px solid #3e626b; border-radius: 50%; background: radial-gradient(circle at 34% 28%, #16313a 0 5%, #0d242d 32%, #061116 74%); box-shadow: inset -35px -28px 75px #010507, inset 18px 12px 55px #31717e44, 0 0 0 12px #10191e, 0 0 0 13px #3e4b50; }
.origin-globe::before, .origin-globe::after { content: ""; position: absolute; inset: 8% 16%; border: 1px solid #5b969d55; border-radius: 50%; transform: rotate(22deg); }
.origin-globe::after { inset: 18% 5%; transform: rotate(-26deg); border-color: #5b969d33; }
.globe-land { position: absolute; display: block; background: #3d747466; filter: drop-shadow(0 0 5px #69c9d033); }
.land-one { width: 30%; height: 20%; left: 13%; top: 25%; border-radius: 52% 40% 48% 45%; transform: rotate(12deg); }
.land-two { width: 28%; height: 32%; left: 40%; top: 16%; border-radius: 42% 56% 36% 48%; transform: rotate(-18deg); }
.land-three { width: 22%; height: 25%; left: 60%; top: 57%; border-radius: 52% 40% 58% 38%; transform: rotate(22deg); }
.globe-pin { position: absolute; width: 14px; height: 14px; border: 2px solid #071014; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 5px #f04b3b33, 0 0 17px #f04b3b; animation: origin-pulse 2.8s infinite; }
.pin-japan { left: 77%; top: 39%; } .pin-canada { left: 22%; top: 27%; } .pin-us { left: 25%; top: 45%; } .pin-europe { left: 52%; top: 29%; } .pin-australia { left: 77%; top: 73%; }
@keyframes origin-pulse { 0%, 100% { box-shadow: 0 0 0 4px #f04b3b22, 0 0 14px #f04b3b; } 50% { box-shadow: 0 0 0 10px #f04b3b00, 0 0 22px #f04b3b; } }
.globe-legend { display: flex; justify-content: space-between; gap: 16px; margin: 24px auto 0; width: min(100%, 520px); color: #8b9798; font: 10px/1.4 var(--mono); letter-spacing: .08em; }
.legend-dot { display: inline-block; width: 8px; height: 8px; margin-right: 6px; border-radius: 50%; background: var(--red); box-shadow: 0 0 8px var(--red); }
.origin-panel { padding: clamp(24px, 4vw, 42px); border: 1px solid #35464d; background: #0b1318; }
.origin-panel h2 { margin: 18px 0 12px; color: var(--paper); font: 800 italic clamp(34px, 5vw, 62px)/.9 var(--display); }
.origin-panel p, .origin-note p { color: #a8afad; font-size: 15px; line-height: 1.65; }
.origin-panel label { display: block; margin-top: 24px; color: var(--cyan); font: 10px/1.2 var(--mono); letter-spacing: .13em; }
.origin-panel select { width: 100%; margin-top: 9px; padding: 12px; border: 1px solid #435057; background: #080d11; color: var(--paper); font: 15px/1.45 var(--body); }
.origin-panel select:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.origin-panel .button { margin-top: 18px; cursor: pointer; }
.origin-note { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; padding-top: 24px; padding-bottom: 56px; border-top: 1px solid var(--line); }
.origin-note p { max-width: 700px; margin: 0; }
@media (max-width: 760px) { .origin-map-shell { grid-template-columns: 1fr; gap: 38px; padding-top: 38px; } .origin-globe { width: min(88vw, 430px); } .globe-legend { font-size: 9px; } }
.source-note p { max-width: 850px; margin: 0; }
.source-note .mono-label { display: block; margin-bottom: 8px; color: var(--paper); font-size: 9px; }
.source-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 15px; }
.source-links a { color: var(--cyan); font: 9px/1.4 var(--mono); letter-spacing: .08em; }
.row-logo { width: 68px; height: 42px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 2px; padding: 4px 3px; font-family: var(--display); line-height: .82; letter-spacing: -.02em; text-align: center; }
.row-logo img { width: 100%; height: 100%; display: block; object-fit: contain; border: 1px solid #455057; background: #050607; }
.row-logo small { font: 8px/1 var(--mono); letter-spacing: .12em; }
.row-logo b { font: 11px/1 var(--display); font-weight: 400; }
.row-logo-archive { color: var(--cyan); border-color: var(--cyan); }
.row-logo-confidential { color: #ff8d83; border-color: #ff8d83; }
.row-logo-tsunami { color: #f4c96a; border-color: #f4c96a; }
.circuit-row { grid-template-columns: 50px 80px 160px minmax(200px, 1fr) 150px; }
@keyframes signal-travel {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes street-flicker {
  0%, 14%, 22%, 47%, 64%, 82%, 100% { opacity: .38; }
  15%, 18%, 48%, 51%, 83%, 86% { opacity: .92; }
  19%, 65%, 87% { opacity: .12; }
}
@media (max-width: 640px) {
  .brand-deck { grid-template-columns: 1fr; gap: 10px; margin-top: 18px; }
  .brand-card { min-height: 112px; padding: 15px; }
  .brand-name { font-size: 31px; }
  .cover h1 { font-size: clamp(42px, 10.5vw, 66px); letter-spacing: -.06em; }
  .cover h1 em { display: block; max-width: 100%; white-space: normal; overflow-wrap: normal; }
  .board-cover-copy h1 { font-size: clamp(42px, 10.5vw, 66px); }
  .circuit-row { grid-template-columns: 34px 72px minmax(0,1fr); }
  .row-logo { width: 68px; }
  .save-thread { right: 14px; bottom: 14px; padding: 8px 9px; }
  .thread { padding-right: 78px; }
}