:root {
  --bg: #07080c;
  --panel: #10131c;
  --line: rgba(255, 255, 255, 0.1);
  --text: #f4f6fa;
  --muted: #8b93a3;
  --cyan: #00f3ff;
  --magenta: #ff00aa;
  --ok: #3dffb0;
  --font: Outfit, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
  --work-w: 380px;
  --dock-h: 108px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  height: 100%;
  height: 100dvh;
  max-height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
}
body {
  font: 15px/1.45 var(--font);
  color: var(--text);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.aurora {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(700px 320px at 12% -10%, rgba(0, 243, 255, 0.12), transparent 50%),
    radial-gradient(620px 280px at 100% 0%, rgba(255, 0, 170, 0.1), transparent 46%);
}

.hud, .stage, .dock { position: relative; z-index: 1; }

.hud {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: calc(10px + var(--safe-t)) 16px 8px;
}
.brand { display: flex; gap: 10px; align-items: center; min-width: 0; margin-right: auto; }
.mark {
  width: 36px; height: 36px;
  flex: 0 0 auto;
  display: grid; place-items: center;
  border-radius: 12px;
  border: 1px solid rgba(0, 243, 255, 0.45);
  color: var(--cyan);
  font-size: 20px;
}
.wordmark { margin: 0; font-weight: 700; font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mark.on { box-shadow: 0 0 16px rgba(61, 255, 176, 0.55); border-color: var(--ok); }
.help-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 12px;
  font: 600 13px/1 var(--font);
  cursor: pointer;
  flex: 0 0 auto;
}
#help-btn { margin-left: 0; }
.help-btn:hover, .help-btn[aria-pressed="true"] { border-color: var(--cyan); color: var(--cyan); }

.stage {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: row;
  overflow: hidden;
  position: relative;
}

.chat, .work-body {
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 243, 255, 0.35) transparent;
}
.chat::-webkit-scrollbar, .work-body::-webkit-scrollbar { width: 8px; }
.chat::-webkit-scrollbar-thumb, .work-body::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--cyan), var(--magenta));
  border-radius: 99px;
}

.chat {
  flex: 1 1 0;
  min-width: 160px;
  padding: 8px 16px 16px;
  display: block;
}
.splitter {
  flex: 0 0 8px;
  background: transparent;
  position: relative;
  z-index: 3;
  touch-action: none;
}
.splitter::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--line);
  transition: background 0.2s;
}
.splitter:hover::after, .splitter.dragging::after { background: var(--cyan); }
.splitter.x { cursor: col-resize; }
.splitter.x::after { left: 3px; right: 3px; }
.splitter.y {
  flex: 0 0 8px;
  cursor: row-resize;
  width: 100%;
}
.splitter.y::after { top: 3px; bottom: 3px; }
.chat-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: min-content;
}
.chat-inner:has(.empty) {
  min-height: 100%;
  justify-content: center;
}
.empty {
  margin: auto;
  max-width: 36ch;
  text-align: center;
  color: var(--muted);
  padding: 24px 8px;
}
.empty b { display: block; color: var(--text); font-size: 22px; margin-bottom: 8px; }
.post {
  max-width: min(720px, 100%);
  padding: 10px 14px;
  border-radius: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
}
.post.you {
  margin-left: auto;
  background: rgba(255, 0, 170, 0.12);
  border-color: rgba(255, 0, 170, 0.28);
}
.who {
  font: 500 10px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 6px;
}
.post.you .who { color: var(--magenta); }
.post p { margin: 0; overflow-wrap: anywhere; }
.post p code, .post pre code {
  font-family: var(--mono);
  font-size: 13px;
}
.post pre {
  margin: 8px 0 0;
  padding: 10px;
  border-radius: 10px;
  background: #07080c;
  overflow: auto;
  max-height: 320px;
}
.post.stream p::after {
  content: "▍";
  color: var(--cyan);
  animation: blink 0.9s steps(1) infinite;
}
.proof { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.proof span {
  border: 1px solid rgba(61, 255, 176, 0.35);
  color: var(--ok);
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 12px;
}
.typing { color: var(--magenta); font: 500 13px/1.4 var(--mono); padding: 6px 4px; }

.work {
  flex: 0 0 var(--work-w);
  width: var(--work-w);
  min-width: 200px;
  max-width: 80%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
  background: #0b0d12;
}
.work-head { flex: 0 0 auto; padding: 12px 14px 8px; border-bottom: 1px solid var(--line); }
.work-head h2 {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.work-head p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.work-body { flex: 1 1 auto; padding: 12px 14px 20px; }
.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  margin-bottom: 10px;
  background: var(--panel);
}
.card h3 {
  margin: 0 0 8px;
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 8px;
}
.card pre {
  margin: 0;
  max-height: 280px;
  min-height: 72px;
  overflow: auto;
  resize: vertical;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: 12px/1.45 var(--mono);
  color: var(--text);
}
.card button.copy {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--cyan);
  border-radius: 999px;
  padding: 3px 8px;
  font: 600 10px/1 var(--font);
  cursor: pointer;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.card .idle { color: var(--muted); font-size: 13px; }
.item { font-size: 13px; margin: 4px 0; color: var(--muted); }
.item.done { color: var(--ok); }

.dock {
  flex: 0 0 var(--dock-h);
  min-height: 88px;
  max-height: 55vh;
  padding: 8px 16px calc(10px + var(--safe-b));
  border-top: 0;
  background: #0b0d12;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: auto;
}
.slash {
  margin-bottom: 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  max-height: min(280px, 40vh);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.slash button {
  display: flex;
  width: 100%;
  gap: 12px;
  align-items: baseline;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
  cursor: pointer;
}
.slash button:last-child { border-bottom: 0; }
.slash button:hover, .slash button.on { background: rgba(0, 243, 255, 0.08); }
.slash code { color: var(--cyan); font: 600 13px/1.3 var(--mono); min-width: 72px; }
.slash small { color: var(--muted); font-size: 13px; }
.composer { display: flex; gap: 8px; align-items: flex-end; }
textarea {
  flex: 1;
  resize: vertical;
  min-height: 46px;
  max-height: 100%;
  font: 400 16px/1.4 var(--font);
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  caret-color: var(--cyan);
}
textarea:focus { outline: none; border-color: var(--cyan); }
.composer button {
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
  background: var(--cyan);
  color: #041016;
}
.composer button:hover { filter: brightness(1.08); }

#work-btn { display: inline-flex; }
body.dragging { cursor: col-resize; user-select: none; }
body.dragging-y { cursor: row-resize; user-select: none; }

@media (max-width: 1099px) {
  #split-x { display: none; }
  .work {
    display: none;
    position: absolute;
    inset: 0;
    z-index: 4;
    border-left: 0;
    width: 100%;
    max-width: none;
    flex: 1 1 auto;
  }
  body.show-work .work { display: flex; }
  body.show-work .chat { visibility: hidden; }
}

@media (min-width: 1100px) {
  .work { display: flex; position: relative; inset: auto; }
  body.show-work .chat { visibility: visible; }
}

@media (max-width: 480px) {
  .wordmark { font-size: 14px; }
  .post { max-width: 100%; }
  .splitter.y { height: 16px; flex-basis: 16px; }
  .help-btn { padding: 8px 10px; font-size: 12px; }
}

@keyframes blink { 50% { opacity: 0; } }