:root {
  --bg: #0a0e12;
  --surface: #0e141b;
  --line: #18222c;
  --text: #c4d0db;
  --dim: #5d6b78;
  --accent: #56d6c2;   /* teal "signal" — reads as measurement, not Matrix */
  --amber: #f0a868;
  --err: #ff7a7a;
  --ok: #8fd98f;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-width: 1000px;
  margin: 0 auto;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

/* Status bar — a thin instrument readout */
#statusbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 9px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--dim);
  flex: none;
}
#statusbar .brand {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.02em;
}
#statusbar .sep { color: var(--accent); margin: 0 4px; }
.status-item { position: relative; padding-left: 14px; }
.status-item::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 6px; height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--dim);
}
#status-user.online::before { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
#status-host::before { background: var(--amber); }

/* Scrollback */
#screen {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  outline: none;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
#screen::-webkit-scrollbar { width: 10px; }
#screen::-webkit-scrollbar-thumb { background: var(--line); border-radius: 6px; }

.line { white-space: pre-wrap; word-break: break-word; }
.line + .line { margin-top: 1px; }
.dim { color: var(--dim); }
.accent { color: var(--accent); }
.amber { color: var(--amber); }
.err { color: var(--err); }
.ok { color: var(--ok); }
.echo { color: var(--text); }
.echo .ps { color: var(--accent); }
.block { margin: 6px 0; }

.banner { color: var(--accent); white-space: pre; line-height: 1.2; }

/* Prompt */
#promptline {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: var(--surface);
  flex: none;
}
.prompt { color: var(--accent); white-space: nowrap; }
#cmdline {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font: inherit;
  caret-color: var(--accent);
  padding: 0;
}
#cmdline::placeholder { color: var(--dim); }

@media (max-width: 560px) {
  #statusbar { gap: 12px; }
  #status-host { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  #status-user.online::before { box-shadow: none; }
}