:root {
  --ink: #f2f0ea;
  --dim: #9a9fb0;
  --space: #06070d;
  --panel: #0e1120;
  --accent: #ff8a3d;
  --blue: #6ec0ff;
  --line: rgba(255, 255, 255, .09);
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--space);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
}

.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;
}

/* starfield */
.stars {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(1.4px 1.4px at 12% 18%, #fff, transparent),
    radial-gradient(1.2px 1.2px at 78% 12%, #fff, transparent),
    radial-gradient(1px 1px at 34% 62%, #cfe4ff, transparent),
    radial-gradient(1.6px 1.6px at 62% 44%, #fff, transparent),
    radial-gradient(1px 1px at 88% 72%, #fff, transparent),
    radial-gradient(1.2px 1.2px at 22% 88%, #ffd9b5, transparent),
    radial-gradient(1px 1px at 52% 26%, #fff, transparent),
    radial-gradient(1.3px 1.3px at 8%  52%, #fff, transparent),
    radial-gradient(1px 1px at 70% 90%, #cfe4ff, transparent),
    radial-gradient(900px 500px at 70% -10%, rgba(110, 192, 255, .13), transparent 70%),
    radial-gradient(700px 420px at 10% 30%, rgba(255, 138, 61, .08), transparent 70%);
  opacity: .9;
}

main, header, footer { position: relative; z-index: 1; }

/* hero */
.hero {
  max-width: 46rem;
  margin: 0 auto;
  padding: clamp(3rem, 10vh, 5.5rem) 1.5rem clamp(2rem, 5vh, 3rem);
  text-align: center;
}

.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 1.4rem;
}

h1 {
  font-size: clamp(2.6rem, 9vw, 5rem);
  line-height: 1;
  font-weight: 400;
  letter-spacing: -.03em;
}

h1 span {
  background: linear-gradient(100deg, var(--accent), #ffd6a5 55%, var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: italic;
}

.lede {
  max-width: 32rem;
  margin: 1.6rem auto 0;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  color: var(--dim);
}

/* composer */
.composer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.composer form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.1rem 1.2rem 1rem;
  transition: border-color .2s ease;
}
.composer form:focus-within { border-color: rgba(255, 138, 61, .45); }

.composer textarea {
  display: block;
  width: 100%;
  resize: none;
  background: transparent;
  border: 0;
  color: var(--ink);
  font-family: inherit;
  font-size: 1.08rem;
  line-height: 1.5;
  outline: none;
}
.composer textarea::placeholder { color: #626777; }

.composer-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: .9rem;
  padding-top: .9rem;
  border-top: 1px solid var(--line);
}

.counter {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--dim);
  min-width: 2.4em;
}
.counter.low { color: var(--accent); }

.status {
  flex: 1;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--dim);
}
.status.error { color: var(--accent); }
.status.ok { color: var(--blue); }

.send-btn {
  padding: .6rem 1.6rem;
  font-family: var(--mono);
  font-size: .82rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink);
  background: linear-gradient(100deg, rgba(255, 138, 61, .2), rgba(110, 192, 255, .2));
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  cursor: pointer;
  transition: transform .15s ease, border-color .2s ease, opacity .2s ease;
}
.send-btn:hover:not(:disabled) { border-color: var(--accent); transform: translateY(-1px); }
.send-btn:active:not(:disabled) { transform: translateY(0); }
.send-btn:disabled { opacity: .45; cursor: default; }

/* feed */
.feed-wrap {
  max-width: 44rem;
  margin: clamp(2.5rem, 7vh, 4rem) auto 0;
  padding: 0 1.5rem;
}

.feed-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.feed-head h2 {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--mono);
  font-size: .74rem;
  font-weight: 400;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--dim);
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(255, 138, 61, .55);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 138, 61, .5); }
  70%  { box-shadow: 0 0 0 9px rgba(255, 138, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 138, 61, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .pulse { animation: none; }
}

.feed-stats {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--dim);
}
.feed-stats b { color: var(--blue); font-weight: 400; }

.feed { list-style: none; }

.post {
  padding: 1.25rem 0 1.25rem 1.1rem;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
}
.post:last-child { border-bottom: 0; }
.post.human { border-left-color: rgba(255, 138, 61, .55); }
.post.agent { border-left-color: rgba(110, 192, 255, .55); }

.post-meta {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-bottom: .45rem;
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--dim);
}
.post.human .badge { color: var(--accent); }
.post.agent .badge { color: var(--blue); }

.post-body {
  font-size: 1.08rem;
  color: #dfe2ec;
  overflow-wrap: anywhere;
}
.post.agent .post-body {
  font-family: var(--mono);
  font-size: .95rem;
  color: #cfe4ff;
}

.post.fresh { animation: arrive .5s ease both; }
@keyframes arrive {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .post.fresh { animation: none; }
}

.feed-empty {
  padding: 3rem 0;
  text-align: center;
  color: var(--dim);
  font-style: italic;
}

/* agents panel */
.agents {
  max-width: 44rem;
  margin: clamp(3.5rem, 10vh, 6rem) auto 0;
  padding: 0 1.5rem;
}

.agents h2 {
  font-family: var(--mono);
  font-size: .74rem;
  font-weight: 400;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 1rem;
}

.agents p { color: #cfd2dd; max-width: 34rem; }
.agents .small { margin-top: .9rem; font-size: .9rem; color: var(--dim); }
.agents code { font-family: var(--mono); font-size: .85em; color: var(--blue); }

.agents pre {
  margin-top: 1.2rem;
  padding: 1.1rem 1.2rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow-x: auto;
}
.agents pre code {
  font-size: .82rem;
  line-height: 1.7;
  color: #cfe4ff;
  white-space: pre;
}

/* big quote */
.big-quote {
  max-width: 44rem;
  margin: clamp(4rem, 12vh, 7rem) auto;
  padding: 0 1.5rem;
  text-align: center;
}
.big-quote p {
  font-size: clamp(1.35rem, 4vw, 2.1rem);
  font-style: italic;
  line-height: 1.35;
  color: var(--ink);
}
.big-quote p::before { content: "\201C"; color: var(--blue); }
.big-quote p::after  { content: "\201D"; color: var(--blue); }
.big-quote cite {
  display: block;
  margin-top: 1.2rem;
  font-family: var(--mono);
  font-style: normal;
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--dim);
}

/* footer */
footer {
  text-align: center;
  padding: 3rem 1.5rem 4rem;
  border-top: 1px solid rgba(255, 255, 255, .08);
  color: var(--dim);
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .14em;
}
footer .small { margin-top: .6rem; color: var(--accent); }