:root {
  --void: #000000;
  --ink: #050507;
  --panel: rgba(4, 5, 12, .9);
  --panel-solid: #080912;
  --panel-raised: #101126;
  --text: #f7f7ff;
  --muted: rgba(247, 247, 255, .72);
  --dim: rgba(247, 247, 255, .42);
  --line: rgba(255, 255, 255, .16);
  --line-strong: rgba(255, 255, 255, .34);
  --violet: #7458ff;
  --blue: #3246ff;
  --cyan: #68f7ff;
  --green: #c8ff24;
  --paper: #ffffff;
  --warning: #ffd15c;
  --danger: #ff579b;
  --shadow: none;
  --header-h: 68px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  padding-top: var(--header-h);
  background:
    linear-gradient(rgba(255,255,255,.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.075) 1px, transparent 1px),
    repeating-linear-gradient(112deg, transparent 0 42px, rgba(116,88,255,.075) 43px 44px, transparent 45px 92px),
    var(--void);
  background-size: 84px 84px, 84px 84px, auto, auto;
  color: var(--text);
  font-family: "Space Grotesk", "Inter", "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(50,70,255,.16), transparent 26%, transparent 74%, rgba(116,88,255,.14)),
    repeating-linear-gradient(180deg, transparent 0 118px, rgba(215,212,255,.08) 119px 120px);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.86), rgba(0,0,0,.28));
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 100;
  transform: translateY(-140%);
  padding: 9px 12px;
  background: var(--cyan);
  color: #020204;
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 68px;
  padding: 12px 32px;
  border-bottom: 1px solid rgba(255,255,255,.22);
  background: #000;
  backdrop-filter: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
}

.brand-mark-img {
  display: block;
  width: 42px;
  height: 42px;
  object-fit: cover;
  flex: 0 0 auto;
}

.brand-logo {
  display: block;
  width: 174px;
  height: 38px;
  object-fit: contain;
  object-position: left center;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 6px;
  min-width: 0;
}

.nav a,
.header-action,
.button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  border: 1px solid transparent;
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  line-height: 1.1;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav a {
  color: var(--dim);
}

.nav a:hover {
  color: var(--text);
  border-color: var(--blue);
}

.header-action,
.button.primary {
  background: var(--text);
  color: var(--void);
  border-color: var(--text);
  font-weight: 700;
}

.button.secondary {
  border-color: var(--line-strong);
  color: var(--text);
  background: #000;
}

.button:hover,
.header-action:hover {
  transform: translateY(-1px);
}

.page-screen {
  min-height: calc(92svh - var(--header-h));
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

main > section {
  scroll-margin-top: calc(var(--header-h) + 18px);
}

.hero-page {
  display: grid;
  align-items: center;
  padding: 46px 0 40px;
  position: relative;
  overflow: hidden;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(380px, .64fr);
  gap: 46px;
  align-items: center;
  position: relative;
  z-index: 1;
  min-height: calc(92svh - var(--header-h) - 60px);
  padding-top: 0;
}

.hero-copy,
.preview-copy,
.hero-visual,
.research-field,
.intro-grid,
.stream-panel,
.paper-card,
.join-card {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.hero-copy h1 {
  margin: 0;
  font-size: 88px;
  line-height: .9;
  letter-spacing: 0;
  font-weight: 900;
  background: linear-gradient(100deg, #f6f5ff, #7554ff 50%, #7bf4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-transform: uppercase;
}

.hero-logo {
  display: block;
  width: 238px;
  height: auto;
  margin: 0 0 24px;
}

.hero-subtitle {
  margin: 16px 0 26px;
  color: var(--paper);
  background: transparent;
  border: 0;
  border-left: 3px solid var(--violet);
  padding: 0 0 0 14px;
  font-size: 23px;
  font-weight: 650;
  line-height: 1.15;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  max-width: 680px;
  border: 1px solid var(--line);
  background: rgba(4, 5, 12, .78);
  box-shadow: var(--shadow);
}

.intro-grid p {
  margin: 0;
  padding: 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.46;
  overflow-wrap: break-word;
}

.intro-grid p + p {
  border-left: 1px solid var(--line);
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.research-field {
  position: relative;
}

.field-surface {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--line);
  background:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(135deg, rgba(50,70,255,.15), rgba(0,0,0,.18) 36%, rgba(116,88,255,.18));
  background-size: 46px 46px, 46px 46px, auto;
  overflow: hidden;
}

.field-surface::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(215,212,255,.14);
  pointer-events: none;
}

.field-logo-mark {
  position: absolute;
  left: 50%;
  top: 45%;
  width: min(80%, 420px);
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: contain;
  opacity: .82;
  mix-blend-mode: screen;
}

.field-node {
  position: absolute;
  width: 184px;
  min-height: 88px;
  padding: 14px;
  border: 1px solid var(--line-strong);
  background: rgba(0,0,0,.72);
}

.field-node span {
  display: block;
  margin-bottom: 8px;
  color: var(--cyan);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.field-node strong {
  font-size: 20px;
  line-height: 1.1;
}

.node-paper {
  left: 34px;
  top: 48px;
}

.node-problem {
  right: 42px;
  top: 206px;
}

.node-people {
  left: 64px;
  bottom: 92px;
}

.proposal-chain {
  position: absolute;
  left: 34px;
  right: 34px;
  bottom: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  background: rgba(0,0,0,.7);
}

.proposal-chain span {
  min-height: 44px;
  display: grid;
  place-items: center;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 11px;
  text-transform: uppercase;
}

.proposal-chain span:first-child {
  border-left: 0;
  color: var(--cyan);
}

.signal-banner {
  position: absolute;
  top: 58px;
  left: 0;
  right: 0;
  height: 154px;
  background: var(--blue);
  overflow: hidden;
  z-index: 0;
}

.banner-code {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 58px;
  padding-left: 36px;
}

.banner-code span {
  display: block;
  width: 52px;
  height: 7px;
  background:
    linear-gradient(90deg, rgba(0,0,0,.38) 0 12px, transparent 12px 20px, rgba(0,0,0,.38) 20px 36px, transparent 36px);
}

.banner-code span:nth-child(3n) {
  width: 34px;
}

.banner-code span:nth-child(4n) {
  width: 74px;
}

.banner-hatch {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 27px;
  height: 38px;
  background: repeating-linear-gradient(115deg, rgba(255,255,255,.18) 0 9px, transparent 9px 20px);
}

.hero-visual {
  position: relative;
  min-height: 370px;
}

.iso-console {
  position: absolute;
  right: 8px;
  bottom: 18px;
  width: 330px;
  height: 270px;
  transform: skewY(-9deg) scale(.86);
  transform-origin: 50% 100%;
}

.console-base {
  position: absolute;
  left: 32px;
  right: 10px;
  bottom: 0;
  height: 94px;
  background: #181757;
  border: 2px solid #fff;
  box-shadow: -22px 20px 0 #0b0b2f;
}

.console-base::before {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  top: -31px;
  height: 31px;
  background: #20206a;
  border: 2px solid #fff;
  transform: skewX(-31deg);
  transform-origin: left bottom;
}

.console-base span {
  position: absolute;
  bottom: 18px;
  width: 42px;
  height: 18px;
  border: 1px solid rgba(255,255,255,.55);
  background: var(--blue);
}

.console-base span:nth-child(1) { left: 28px; }
.console-base span:nth-child(2) { left: 84px; background: #000; }
.console-base span:nth-child(3) { right: 30px; width: 12px; background: var(--green); }

.console-neck {
  position: absolute;
  left: 130px;
  bottom: 86px;
  width: 96px;
  height: 88px;
  background: #10104a;
  border: 2px solid #fff;
}

.console-screen {
  position: absolute;
  left: 100px;
  bottom: 168px;
  width: 160px;
  height: 92px;
  display: grid;
  place-items: center;
  background: #171760;
  border: 2px solid #fff;
  color: #fff;
  font-size: 34px;
  font-weight: 900;
}

.console-screen::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 13px;
  height: 21px;
  background: var(--blue);
}

.console-top {
  position: absolute;
  left: 112px;
  bottom: 239px;
  width: 150px;
  height: 58px;
  background: #20206a;
  border: 2px solid #fff;
  transform: skewX(-24deg);
}

.paper-stack {
  position: absolute;
  left: 26px;
  top: -22px;
  width: 94px;
  height: 62px;
  display: grid;
  place-items: center;
  background: #fff;
  color: #000;
  font-size: 34px;
  font-weight: 950;
  transform: skewX(24deg) rotate(-8deg);
}

.paper-stack::before,
.paper-stack::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-top: 5px solid #000;
  border-bottom: 5px solid #000;
  opacity: .88;
}

.paper-stack::after {
  inset: 18px 10px;
}

.float-cube {
  position: absolute;
  width: 70px;
  height: 70px;
  background: #181757;
  border: 1px solid #fff;
  transform: rotate(30deg) skewX(-28deg);
}

.float-cube::before,
.float-cube::after {
  content: "";
  position: absolute;
  background: #24236f;
  border: 1px solid #fff;
}

.float-cube::before {
  width: 34px;
  height: 70px;
  right: -36px;
  top: 17px;
  transform: skewY(45deg);
}

.float-cube::after {
  width: 70px;
  height: 34px;
  left: 17px;
  bottom: -36px;
  transform: skewX(45deg);
}

.cube-one {
  left: 28px;
  top: 96px;
}

.cube-two {
  right: 0;
  top: 18px;
  width: 42px;
  height: 42px;
}

.signal-board {
  border: 1px solid var(--line);
  background: rgba(8, 10, 19, .72);
  box-shadow: var(--shadow);
  width: min(100%, 330px);
  justify-self: end;
}

.hero-mark {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  border-bottom: 1px solid var(--line);
}

.hero-mark path {
  fill: none;
  stroke: url(#heroMarkGradient);
  stroke-width: 11;
  stroke-linecap: square;
}

.loop-list {
  display: grid;
}

.loop-list div {
  display: grid;
  grid-template-columns: 44px 1fr;
  column-gap: 12px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}

.loop-list div:first-child {
  border-top: 0;
}

.loop-list span {
  grid-row: 1 / span 2;
  color: var(--green);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
}

.loop-list strong {
  font-size: 15px;
}

.loop-list p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.event-preview {
  display: grid;
  align-items: center;
  padding: 54px 0;
}

.preview-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: 30px;
  align-items: stretch;
}

.preview-copy,
.registration-card {
  border: 1px solid var(--line);
  background: rgba(10, 12, 23, .82);
  box-shadow: var(--shadow);
}

.preview-copy {
  padding: 42px;
  position: relative;
  overflow: hidden;
}

.preview-copy::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 12px;
  background: linear-gradient(90deg, var(--blue), var(--violet), var(--cyan));
}

.preview-copy h2,
.section-heading h2 {
  margin: 0;
  font-size: 48px;
  line-height: 1.02;
  letter-spacing: 0;
}

.preview-copy p,
.section-heading p {
  max-width: 760px;
  color: var(--muted);
}

.event-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 36px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.event-facts div {
  padding: 18px;
  background: var(--panel-solid);
}

.event-facts dt {
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.event-facts dd {
  margin: 8px 0 0;
  font-size: 24px;
  font-weight: 760;
}

.registration-card {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 14px;
  padding: 32px;
}

.qr-code {
  display: block;
  width: 224px;
  height: 224px;
  box-sizing: border-box;
  padding: 8px;
  object-fit: contain;
  background: var(--paper);
}

.registration-card p {
  margin: 0;
  font-size: 22px;
  font-weight: 760;
}

.registration-card span {
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-align: center;
}

.site-section {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
  padding: 104px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 32px;
}

.calendar-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.calendar-panel,
.stream-panel,
.conference-table-wrap,
.join-card,
.paper-card {
  border: 1px solid var(--line);
  background: rgba(10, 12, 23, .82);
  box-shadow: var(--shadow);
}

.calendar-panel {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding: 18px;
}

.calendar-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.calendar-title span {
  font-size: 28px;
  font-weight: 780;
}

.calendar-title strong {
  color: var(--cyan);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 13px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  padding-top: 16px;
}

.calendar-weekday,
.calendar-day {
  min-height: 38px;
  display: grid;
  place-items: center;
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
}

.calendar-weekday {
  color: var(--dim);
}

.calendar-day {
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.025);
  color: var(--muted);
  cursor: default;
}

button.calendar-day {
  cursor: pointer;
}

.calendar-day.has-event {
  border-color: var(--cyan);
  color: var(--text);
  background: rgba(105,240,255,.1);
}

.calendar-day.is-current,
.calendar-day.has-event:hover {
  border-color: var(--green);
  box-shadow: inset 0 0 0 1px var(--green);
}

.calendar-day.is-past-event {
  border-color: var(--line-strong);
  background: rgba(255,255,255,.025);
  color: var(--dim);
}

.calendar-day.is-past-event:hover,
.calendar-day.is-past-event:focus-visible {
  border-color: var(--muted);
  box-shadow: inset 0 0 0 1px var(--muted);
}

.stream-panel {
  min-width: 0;
}

.stream-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.event-stream {
  max-height: 570px;
  overflow-y: auto;
  scroll-behavior: smooth;
  padding: 18px;
}

.event-card {
  display: grid;
  grid-template-columns: 126px 1fr auto;
  gap: 18px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
}

.event-card + .event-card {
  margin-top: 12px;
}

.event-card.is-active {
  border-color: var(--green);
  background: rgba(166,255,114,.07);
}

.event-date {
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  color: var(--cyan);
  font-size: 12px;
}

.event-card h3 {
  margin: 0;
  font-size: 22px;
}

.event-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

.status-pill {
  display: inline-block;
  min-width: 92px;
  padding: 7px 9px;
  border: 1px solid var(--line-strong);
  color: var(--paper);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 11px;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}

.status-pill.upcoming {
  border-color: var(--green);
  color: var(--green);
}

.status-pill.replay {
  border-color: var(--line-strong);
  color: var(--muted);
}

a.status-pill.replay:hover,
a.status-pill.replay:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.paper-cards {
  display: grid;
  gap: 12px;
}

.paper-card {
  display: block;
  padding: 22px 24px;
  color: var(--text);
  text-decoration: none;
  transition: border-color .18s ease, background-color .18s ease;
}

.paper-card h3 {
  margin: 0;
  font-size: 22px;
}

.paper-card:hover,
.paper-card:focus-visible {
  border-color: var(--cyan);
  background: rgba(105,240,255,.07);
}

.conference-table-wrap {
  overflow-x: auto;
}

.conference-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: -10px 0 18px;
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 11px;
  text-transform: uppercase;
}

.conference-legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.conference-legend i {
  width: 11px;
  height: 11px;
  border: 1px solid var(--line);
}

.conference-legend i.is-current {
  border-color: var(--blue);
  background: var(--blue);
}

.conference-legend i.is-future {
  border-color: var(--blue);
  background: rgba(50,70,255,.22);
}

.conference-legend i.is-past {
  border-color: rgba(255,255,255,.12);
  background: rgba(255,255,255,.08);
}

.conference-legend i.is-unannounced {
  border-style: dashed;
  border-color: rgba(255,255,255,.2);
}

.conference-table {
  width: 100%;
  min-width: 1200px;
  border-collapse: collapse;
}

.conference-table th,
.conference-table td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.conference-table th {
  color: var(--cyan);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 11px;
  text-transform: uppercase;
  background: rgba(255,255,255,.035);
}

.conference-table td {
  color: var(--muted);
  font-size: 14px;
}

.conference-table td:first-child {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--panel-solid);
  color: var(--text);
  font-weight: 760;
}

.conference-table th:first-child {
  position: sticky;
  left: 0;
  z-index: 3;
  background: #11121d;
}

.conference-link {
  color: var(--text);
  text-decoration: none;
}

.conference-link:hover,
.conference-link:focus-visible {
  color: var(--cyan);
}

.conference-link span {
  display: block;
  margin-top: 3px;
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 10px;
  font-weight: 500;
}

.date-chip {
  display: inline-flex;
  min-width: 88px;
  justify-content: center;
  padding: 5px 8px;
  border: 1px solid var(--line);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 11px;
  line-height: 1.25;
  text-align: center;
  white-space: nowrap;
}

.date-chip.is-past {
  border-color: rgba(255,255,255,.1);
  background: rgba(255,255,255,.02);
  color: rgba(247,247,255,.34);
  filter: grayscale(1);
}

.date-chip.is-future {
  border-color: var(--blue);
  background: rgba(50,70,255,.16);
  color: #aeb4ff;
}

.date-chip.is-current {
  border-color: var(--blue);
  background: var(--blue);
  color: var(--paper);
}

.date-chip.is-unannounced {
  border-style: dashed;
  border-color: rgba(255,255,255,.18);
  color: var(--dim);
}

.join-section {
  padding-bottom: 88px;
}

.join-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 14px;
}

.join-card {
  width: 100%;
  padding: 20px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(8, 10, 22, .54);
  color: var(--text);
  text-decoration: none;
  text-align: left;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.join-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(105,240,255,.055);
}

.join-card span {
  color: var(--cyan);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.join-card.social {
  grid-column: span 4;
  min-height: 276px;
}

.join-icon {
  display: block;
  width: 92px;
  height: 92px;
  margin: auto;
  object-fit: contain;
}

.discord-icon {
  filter: brightness(0) saturate(100%) invert(37%) sepia(92%) saturate(1260%) hue-rotate(213deg) brightness(97%) contrast(97%);
}

.x-icon {
  width: 72px;
  height: 72px;
  filter: invert(1);
}

.wechat-icon {
  width: 104px;
  height: 104px;
}

.wechat-dialog {
  width: 100vw;
  max-width: none;
  height: 100vh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(5, 7, 16, .94);
  color: var(--text);
  overflow: auto;
}

.wechat-dialog::backdrop {
  background: rgba(0, 0, 0, .72);
  backdrop-filter: blur(8px);
}

.wechat-dialog-panel {
  position: relative;
  display: flex;
  min-height: 100%;
  padding: 64px 24px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
}

.wechat-dialog-panel h2 {
  max-width: 680px;
  margin: 10px 0 30px;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(34px, 5vw, 72px);
  line-height: 1;
  letter-spacing: 0;
}

.wechat-dialog-qr {
  display: block;
  width: min(320px, 74vw);
  aspect-ratio: 1;
  padding: 12px;
  object-fit: contain;
  background: var(--paper);
  box-shadow: 0 0 0 1px rgba(105,240,255,.45), 0 28px 90px rgba(0,0,0,.45);
}

.wechat-dialog-note {
  margin: 18px 0 0;
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.wechat-dialog-close {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 1;
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(5, 7, 16, .82);
  color: var(--text);
  font: 30px/1 Arial, sans-serif;
  cursor: pointer;
}

.wechat-dialog-close:hover,
.wechat-dialog-close:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-family: "IBM Plex Mono", "JetBrains Mono", Consolas, monospace;
  font-size: 12px;
}

@media (max-width: 980px) {
  :root {
    --header-h: 124px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    grid-column: 1 / -1;
    justify-content: start;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero-layout,
  .preview-layout,
  .calendar-layout {
    grid-template-columns: 1fr;
  }

  .calendar-panel {
    position: static;
  }

  .intro-grid,
  .event-facts {
    grid-template-columns: 1fr;
  }

  .join-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .join-card.social,
  .join-card.action {
    grid-column: auto;
  }

  .intro-grid p + p {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .signal-board {
    max-width: 520px;
  }

  .research-field {
    max-width: 620px;
  }
}

@media (max-width: 680px) {
  :root {
    --header-h: 112px;
  }

  body {
    font-size: 15px;
  }

  .site-header {
    padding: 10px 16px;
  }

  .brand-logo {
    width: 132px;
    height: 28px;
  }

  .brand-mark-img {
    width: 32px;
    height: 32px;
  }

  .nav {
    gap: 2px;
    overflow-x: visible;
  }

  .nav a {
    min-height: 32px;
    padding: 0 7px;
    font-size: 10px;
  }

  .header-action {
    display: none;
  }

  .page-screen,
  .site-section,
  .site-footer {
    width: min(100% - 28px, 1240px);
  }

  .hero-page {
    padding-top: 40px;
  }

  .hero-layout {
    gap: 28px;
  }

  .hero-logo {
    width: 212px;
    margin-bottom: 18px;
  }

  .hero-copy h1 {
    font-size: 64px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .field-surface {
    min-height: 460px;
  }

  .field-logo-mark {
    top: 43%;
    width: 92%;
  }

  .field-node {
    width: 148px;
    min-height: 82px;
    padding: 12px;
  }

  .field-node strong {
    font-size: 17px;
  }

  .node-paper {
    left: 18px;
    top: 34px;
  }

  .node-problem {
    right: 18px;
    top: 184px;
  }

  .node-people {
    left: 18px;
    bottom: 108px;
  }

  .proposal-chain {
    left: 18px;
    right: 18px;
    bottom: 20px;
    grid-template-columns: repeat(2, 1fr);
  }

  .proposal-chain span:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .proposal-chain span:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .preview-copy h2,
  .section-heading h2 {
    font-size: 34px;
  }

  .preview-copy {
    padding: 26px;
  }

  .event-card {
    grid-template-columns: 1fr;
  }

  .paper-card {
    grid-template-columns: 1fr;
  }

  .join-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}