:root {
  --bg: #10141a;
  --bg-2: #171c24;
  --bg-3: #222833;
  --line: #313846;
  --text: #f4f1ea;
  --muted: #b7b1a6;
  --accent: #7eb6e0;
  --accent-ink: #0c1824;
  --good: #1f8f55;
  --bad: #c4473d;
  --sans: "Liberation Sans", "Nimbus Sans", "DejaVu Sans", sans-serif;
  --mono: "DejaVu Sans Mono", "Liberation Mono", ui-monospace, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.app {
  height: 100%;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr) 340px;
  grid-template-rows: 62px minmax(0, 1fr) 34px;
  grid-template-areas:
    "head head head"
    "nav main aside"
    "foot foot foot";
}

header {
  grid-area: head;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
  background: #141922;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 250px; }
.mark {
  width: 16px;
  height: 16px;
  flex: none;
  border-radius: 4px;
  background: var(--accent);
  box-shadow: inset 0 -5px 0 rgba(0, 0, 0, 0.28);
}
.title { font-weight: 700; letter-spacing: 0.01em; line-height: 1.2; }
.sub { color: var(--muted); font-size: 12px; line-height: 1.2; }
.head-meta { flex: 1; min-width: 0; }
.scenename { font-weight: 650; }
.progress { color: var(--muted); font-size: 12px; font-family: var(--mono); }
.head-actions { display: flex; gap: 8px; }

.ghost, .solid {
  border: 1px solid var(--line);
  background: var(--bg-3);
  border-radius: 8px;
  padding: 7px 12px;
}
.solid { background: var(--accent); color: var(--accent-ink); border-color: #5e93b8; font-weight: 700; }
.ghost:hover { border-color: #7ea4c4; }

nav {
  grid-area: nav;
  overflow: auto;
  border-right: 1px solid var(--line);
  background: #12171f;
  padding: 8px 8px 20px;
}
.navlabel {
  margin: 14px 8px 6px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.navitem {
  width: 100%;
  display: flex;
  gap: 8px;
  align-items: flex-start;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: 8px;
  padding: 7px 8px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.3;
}
.navitem:hover { background: #222836; }
.navitem.on { background: #1a2c3c; color: #e7f2fb; }
.navkicker {
  display: block;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.navitem.on .navkicker { color: #7eb6e0; }
.tick {
  width: 14px;
  flex: none;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  padding-top: 2px;
}

main {
  grid-area: main;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  padding: 22px 28px 40px;
}
aside {
  grid-area: aside;
  min-height: 0;
  overflow: auto;
  border-left: 1px solid var(--line);
  background: #141922;
  padding: 16px;
}
footer {
  grid-area: foot;
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  background: #12171f;
}
footer span { min-width: 0; }

h1 { font-size: 28px; line-height: 1.15; margin: 0 0 12px; }
h2 { font-size: 18px; line-height: 1.35; margin: 18px 0 8px; }
.kicker {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.prose { max-width: 68ch; margin: 0 0 12px; }
.hint { color: var(--muted); font-size: 13px; margin: 8px 0 0; }
.aside-note { color: var(--muted); font-size: 13px; margin: 0 0 12px; }

.panel {
  max-width: 760px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin: 14px 0;
}
.promptline { margin: 0 0 12px; }

.term {
  background: #0c1016;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.termout {
  max-height: 420px;
  overflow: auto;
  padding: 12px 14px 8px;
}
.waiting { margin: 0; color: var(--muted); font-family: var(--mono); font-size: 13px; }
.ran { margin: 0 0 12px; }
.echo { margin: 0 0 8px; font-family: var(--mono); font-size: 13px; }
.prompt { color: var(--accent); font-family: var(--mono); }
.reportwrap { margin: 0; }
.reportcap {
  margin: 0 0 6px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 12px;
}
.report {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.45;
  overflow-x: auto;
  color: #d6e6f5;
}
.reportline {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0 4px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: inherit;
  font: inherit;
  line-height: inherit;
  text-align: left;
  white-space: pre;
}
.reportline:hover, .reportline.on { background: #1a2c3c; }
.reportgap { height: 1.45em; }
.linewhy {
  margin: 2px 0 8px;
  padding: 6px 8px;
  max-width: 68ch;
  border-radius: 8px;
  background: #1a2834;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.4;
  white-space: normal;
}
.labnote { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.composer {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-top: 1px solid var(--line);
  background: #10151c;
}
.composer input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  font-family: var(--mono);
  font-size: 14px;
  padding: 6px 0;
}
.composer .solid { padding: 6px 12px; }

.sample { margin: 8px 0 16px; max-width: 760px; }
.sample figcaption {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 13px;
}
.samplecard {
  background: #0c1016;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  overflow-x: auto;
}
.samplecard .echo { margin: 0 0 8px; }

.choice {
  width: 100%;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  text-align: left;
  background: #1c222c;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  margin: 0 0 8px;
  line-height: 1.35;
}
.choice:hover { border-color: #7ea4c4; }
.choice .key {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: #2a3140;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  display: grid;
  place-items: center;
}
.choice.good { border-color: var(--good); background: #143226; }
.choice.bad { border-color: var(--bad); background: #3a1d1b; }
.why { margin: 8px 0 0; }
.goodline { color: #b7ebc9; margin: 10px 0 0; }
.badline { color: #f3c7c2; margin: 10px 0 0; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.dots { display: flex; gap: 6px; margin: 0 0 12px; }
.dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  border: 0;
  padding: 0;
  background: #2a3140;
}
.dot.on { background: var(--accent); }
.dot.done { background: #1f8f55; }

.side-block { margin: 0 0 18px; }
.side-block h2 { margin: 0 0 8px; font-size: 15px; }
.host {
  width: 100%;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: baseline;
  text-align: left;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  padding: 7px 2px;
  font-size: 13px;
}
.host:hover { background: #222836; }
.host b { font-weight: 650; }
.host .ip { font-family: var(--mono); color: var(--accent); }
.host .st { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.listline {
  margin: 0 0 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.45;
}
.flags { list-style: none; padding: 0; margin: 0; }
.flags li {
  display: grid;
  grid-template-columns: minmax(108px, max-content) minmax(0, 1fr);
  gap: 8px;
  padding: 5px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}
.flags b { font-family: var(--mono); font-weight: 650; color: var(--accent); }
.flags span { color: var(--muted); }

#selftest {
  position: fixed;
  left: 8px;
  bottom: 40px;
  margin: 0;
  padding: 8px;
  background: #0c1824;
  color: #d6e6f5;
  z-index: 5;
}

@media (max-width: 980px) {
  .app {
    height: auto;
    min-height: 100%;
    display: flex;
    flex-direction: column;
  }
  header {
    position: sticky;
    top: 0;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "brand reset" "meta meta";
    height: auto;
    min-height: 0;
    padding: 10px 12px 8px;
    align-items: center;
    gap: 2px 12px;
  }
  .brand { grid-area: brand; min-width: 0; }
  .head-actions { grid-area: reset; }
  .head-meta { grid-area: meta; display: flex; gap: 8px; flex-wrap: wrap; }
  .scenename, .progress { font-size: 12px; }
  nav {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 8px;
  }
  .navlabel { display: none; }
  .navitem { width: auto; white-space: nowrap; align-items: center; }
  .navkicker { display: none; }
  main { padding: 18px 16px 28px; }
  footer { height: auto; padding: 8px 12px; }
  footer span { white-space: normal; }
  aside { border-left: 0; border-top: 1px solid var(--line); }
  .termout { max-height: 320px; }
  .report { font-size: 12px; }
}