@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Space+Grotesk:wght@400;500;600&display=swap");

:root {
  --ink: #dce9e4;
  --muted: #7f9690;
  --green: #7dff9b;
  --green-soft: rgba(125, 255, 155, .12);
  --cyan: #55d7ff;
  --amber: #ffc56c;
  --bg: #050a0a;
  --bg-soft: #091110;
  --panel: rgba(10, 20, 19, .88);
  --line: rgba(174, 214, 201, .16);
  --display: "Space Grotesk", system-ui, sans-serif;
  --mono: "IBM Plex Mono", Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 74% 8%, rgba(31, 105, 93, .17), transparent 28rem),
    linear-gradient(180deg, #06100f 0, var(--bg) 28rem);
  font-family: var(--mono);
  line-height: 1.6;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(125, 255, 155, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 255, 155, .025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, #000, transparent 75%);
}
a { color: inherit; }
button, select { font: inherit; }
.skip-link {
  position: fixed;
  top: .8rem;
  left: .8rem;
  z-index: 50;
  padding: .7rem 1rem;
  color: #041009;
  background: var(--green);
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }
.noise {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: .035;
  background: repeating-linear-gradient(0deg, transparent 0 2px, #fff 2px 3px);
}
.section-shell {
  width: min(1440px, calc(100% - 3rem));
  margin-inline: auto;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 15;
  min-height: 76px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  padding: 0 max(1.5rem, calc((100vw - 1440px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(5, 10, 10, .78);
  backdrop-filter: blur(18px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  width: max-content;
  color: var(--ink);
  text-decoration: none;
}
.brand-mark {
  width: 38px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: #031008;
  background: var(--green);
  font-weight: 600;
  clip-path: polygon(0 0, 80% 0, 100% 20%, 100% 100%, 20% 100%, 0 80%);
  box-shadow: 0 0 28px rgba(125, 255, 155, .26);
}
.brand strong, .brand small { display: block; }
.brand strong { font-size: .9rem; letter-spacing: .08em; }
.brand small { color: var(--muted); font-size: .58rem; letter-spacing: .15em; }
.site-nav { display: flex; align-items: center; gap: 1.65rem; }
.site-nav > a,
.site-nav summary {
  color: var(--muted);
  font-size: .75rem;
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: color .25s ease;
}
.site-nav > a:hover,
.site-nav summary:hover,
.site-nav details[open] summary { color: var(--green); }
.site-nav > a.nav-connect { color: var(--green); }
.nav-prompt { margin-right: .25rem; }
.nav-cursor {
  display: inline-block;
  width: 1ch;
  animation: cursor-blink 1s steps(2, end) infinite;
}
@keyframes cursor-blink { 50% { opacity: 0; } }
.site-nav details { position: relative; }
.site-nav summary { list-style: none; }
.site-nav summary::-webkit-details-marker { display: none; }
.site-nav summary::after { content: " +"; color: var(--green); }
.site-nav details[open] summary::after { content: " −"; }
.nav-menu {
  position: absolute;
  top: calc(100% + 1rem);
  left: 50%;
  min-width: 250px;
  padding: .55rem;
  border: 1px solid var(--line);
  background: rgba(7, 15, 14, .98);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .45);
  transform: translateX(-50%);
}
.nav-menu a {
  display: block;
  padding: .65rem .75rem;
  color: var(--muted);
  font-size: .75rem;
  text-decoration: none;
}
.nav-menu a:hover { color: var(--ink); background: var(--green-soft); }
.nav-toggle { display: none; }

.bbs-intro {
  padding: 2.25rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
}
.bbs-intro .eyebrow { margin-bottom: .35rem; }
.intro-copy {
  max-width: 720px;
  margin: 0 0 .45rem;
  color: var(--muted);
  font-family: var(--display);
  font-size: 1rem;
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: .7rem;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.status-dot {
  display: inline-block;
  width: .55rem;
  height: .55rem;
  margin-right: .45rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 16px rgba(125, 255, 155, .85);
  animation: pulse 2.3s ease-in-out infinite;
}
@keyframes pulse {
  50% { opacity: .45; box-shadow: 0 0 4px rgba(125, 255, 155, .35); }
}
h1, h2, h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -.045em;
}
h1 { font-size: clamp(2.5rem, 5vw, 5rem); }
h2 { font-size: clamp(2.6rem, 5vw, 5.5rem); }
h3 { font-size: 1.35rem; line-height: 1.2; }
.hero-lede {
  max-width: 690px;
  margin: 2rem 0;
  color: var(--muted);
  font-family: var(--display);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  line-height: 1.65;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 48px;
  padding: .75rem 1rem;
  border: 1px solid var(--line);
  font-size: .72rem;
  letter-spacing: .09em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.button:hover { transform: translateY(-2px); border-color: rgba(125, 255, 155, .6); }
.button-primary { color: #031008; border-color: var(--green); background: var(--green); }
.button-primary:hover { background: #a3ffb8; }
.button-ghost { color: var(--ink); background: rgba(255, 255, 255, .025); }

.terminal-section { padding-block: 2rem 7rem; }
.doorparty, .resources { padding-block: clamp(5rem, 10vw, 10rem); }
.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(270px, 470px);
  align-items: end;
  gap: 3rem;
  margin-bottom: 1.5rem;
}
.section-heading > p {
  margin: 0;
  color: var(--muted);
  font-family: var(--display);
  font-size: 1.05rem;
}
.terminal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 500px;
  align-items: start;
  gap: 1.25rem;
}
.terminal-window, .network-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .28);
}
.terminal-toolbar {
  min-height: 62px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: .65rem 1rem;
  border-bottom: 1px solid var(--line);
}
.window-lights { display: flex; gap: .4rem; }
.window-lights i { width: .55rem; height: .55rem; border-radius: 50%; background: var(--muted); opacity: .6; }
.terminal-toolbar label { display: flex; align-items: center; gap: .7rem; color: var(--muted); font-size: .68rem; text-transform: uppercase; }
.terminal-toolbar select {
  min-width: 190px;
  padding: .5rem 2rem .5rem .65rem;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 0;
  background: #07100f;
}
.iframe-wrap {
  position: relative;
  min-height: 660px;
  padding: .75rem;
  background: var(--bg);
  transition: opacity .22s ease, transform .22s ease;
}
.iframe-wrap.is-switching { opacity: .2; transform: scale(.995); }
.iframe-wrap::after {
  content: "";
  position: absolute;
  inset: .75rem;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(112, 255, 144, .025) 3px 4px);
}
#bbs-frame { width: 100%; min-height: 635px; display: block; border: 0; background: var(--bg); }
.network-panel { overflow: hidden; }
.panel-heading {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
}
.panel-heading .eyebrow { margin-bottom: .35rem; }
.online-frame {
  height: 500px;
  overflow: hidden;
  background: var(--bg);
}
.online-frame iframe {
  width: 100%;
  height: 500px;
  border: 0;
  filter: saturate(.8) contrast(1.05);
}
.text-link {
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  color: var(--muted);
  font-size: .72rem;
  text-decoration: none;
  text-transform: uppercase;
}
.text-link:hover { color: var(--green); }
.system-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1.25rem;
  border: 1px solid var(--line);
}
.system-strip a {
  position: relative;
  display: grid;
  gap: .25rem;
  min-height: 120px;
  padding: 1.25rem;
  border-right: 1px solid var(--line);
  text-decoration: none;
  transition: background .25s ease;
}
.system-strip a:last-child { border-right: 0; }
.system-strip a:hover { background: var(--green-soft); }
.system-strip strong { font-family: var(--display); font-size: 1rem; }
.system-strip small { color: var(--muted); }
.system-strip .status-dot { position: absolute; top: 1.2rem; right: .85rem; }
.system-number { color: var(--green); font-size: .65rem; }

.doorparty {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(3rem, 10vw, 10rem);
  border-top: 1px solid var(--line);
}
.doorparty-copy > p:not(.eyebrow) {
  max-width: 650px;
  margin: 2rem 0;
  color: var(--muted);
  font-family: var(--display);
  font-size: 1.1rem;
}
.doorparty-logo {
  display: block;
  width: min(100%, 520px);
  height: auto;
  margin: 0 0 2.25rem;
  image-rendering: pixelated;
  filter: drop-shadow(0 0 24px rgba(85, 215, 255, .12));
}
.feature-list { padding: 0; margin: 2rem 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.feature-list span { min-width: 5rem; color: var(--ink); font-family: var(--display); font-size: 2rem; }
.door-stack { border-top: 1px solid var(--line); }
.door-stack article {
  position: relative;
  padding: 2rem 1rem 2rem 4rem;
  border-bottom: 1px solid var(--line);
  transition: padding-left .3s ease, background .3s ease;
}
.door-stack article:hover { padding-left: 4.75rem; background: linear-gradient(90deg, var(--green-soft), transparent); }
.door-stack article::before {
  content: "›";
  position: absolute;
  left: 1.25rem;
  top: 1.9rem;
  color: var(--green);
  font-size: 1.7rem;
}
.door-stack span { color: var(--green); font-size: .65rem; letter-spacing: .12em; }
.door-stack h3 { margin: .55rem 0; font-size: 1.8rem; }
.door-stack p { margin: 0; color: var(--muted); }

.resources { border-top: 1px solid var(--line); }
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.resource-block { min-width: 0; padding: 1.5rem; border-right: 1px solid var(--line); }
.resource-block:last-child { border-right: 0; }
.resource-index { color: var(--green); font-size: .72rem; }
.resource-block h3 { margin: .8rem 0 1.5rem; font-size: 1.65rem; }
.resource-block a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: .8rem;
  text-decoration: none;
}
.resource-block a:hover { color: var(--green); }

.site-footer {
  min-height: 170px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .75rem;
}
.site-footer > :last-child { justify-self: end; }
.site-footer p { text-align: center; }
.site-footer a:hover { color: var(--green); }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .75s ease, transform .75s cubic-bezier(.2, .75, .2, 1);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    align-items: stretch;
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--line);
    background: rgba(5, 10, 10, .98);
  }
  .site-nav.is-open { display: flex; }
  .site-nav details { width: 100%; }
  .nav-menu { position: static; margin-top: .6rem; transform: none; }
  .nav-toggle {
    display: block;
    justify-self: end;
    color: var(--green);
    border: 0;
    background: transparent;
  }
  .terminal-layout { grid-template-columns: 1fr; }
  .network-panel { display: grid; grid-template-columns: 260px 1fr; }
  .online-frame { height: 470px; grid-row: span 2; }
  .online-frame iframe { height: 470px; }
  .doorparty { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .section-shell { width: min(100% - 1.5rem, 1440px); }
  .site-header { min-height: 64px; padding-inline: .75rem; }
  .bbs-intro { padding-block: 1.5rem; }
  h1 { font-size: clamp(2.3rem, 13vw, 4rem); }
  .signal-readout { flex-direction: column; }
  .section-heading { grid-template-columns: 1fr; gap: 1.25rem; }
  .terminal-toolbar { grid-template-columns: 1fr; }
  .window-lights { display: none; }
  .terminal-toolbar label { justify-content: space-between; }
  .terminal-toolbar select { min-width: 0; max-width: 70%; }
  .iframe-wrap { min-height: 620px; padding: .35rem; overflow: auto; }
  .iframe-wrap::after { inset: .35rem; }
  #bbs-frame { min-width: 640px; min-height: 590px; transform-origin: top left; }
  .network-panel { display: block; }
  .system-strip, .resource-grid { grid-template-columns: 1fr; }
  .system-strip a, .resource-block { border-right: 0; border-bottom: 1px solid var(--line); }
  .site-footer { grid-template-columns: 1fr; padding-block: 2rem; text-align: left; }
  .site-footer p { text-align: left; }
  .site-footer > :last-child { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}