:root {
  --bg: #0f1115;
  --card: #171b22;
  --card2: #1b1f27;
  --line: #2a2f3a;
  --text: #e6e9ef;
  --muted: #8b929e;
  --primary: #3b82f6;
  --ok: #22c55e;
  --warn: #eab308;
  --danger: #ef4444;
  --radius: 14px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
#app { max-width: 560px; margin: 0 auto; min-height: 100vh; display: flex; flex-direction: column; }
.hidden { display: none !important; }

.topbar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between;
  padding: max(12px, env(safe-area-inset-top)) 16px 12px; background: rgba(15,17,21,.9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line); }
.topbar .title { font-weight: 700; font-size: 17px; }
.conn { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: #555; }
.dot.on { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot.off { background: var(--danger); }

.screen { flex: 1; padding: 16px; overflow-y: auto; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
h2 { margin: 0 0 6px; font-size: 19px; }
.muted, .hint { color: var(--muted); font-size: 13px; line-height: 1.5; }
.hint { margin: 10px 0; }

.segmented { display: flex; background: var(--card2); border: 1px solid var(--line); border-radius: 12px; padding: 4px; margin: 14px 0; }
.seg { flex: 1; border: 0; background: transparent; color: var(--muted); padding: 10px; border-radius: 9px; font-size: 14px; font-weight: 600; }
.seg.active { background: var(--primary); color: #fff; }

.field { display: flex; gap: 8px; margin-top: 8px; }
input, textarea { flex: 1; width: 100%; background: var(--card2); border: 1px solid var(--line); color: var(--text);
  border-radius: 10px; padding: 12px; font-size: 15px; outline: none; }
input:focus, textarea:focus { border-color: var(--primary); }
textarea { resize: vertical; }

.btn { border: 0; border-radius: 10px; padding: 12px 16px; font-size: 14px; font-weight: 600; color: #fff; cursor: pointer; }
.btn.primary { background: var(--primary); }
.btn.ok { background: var(--ok); }
.btn.warn { background: var(--warn); color: #1a1a1a; }
.btn.danger { background: var(--danger); }
.btn.ghost { background: var(--card2); color: var(--text); border: 1px solid var(--line); }
.btn.ghost.danger { color: var(--danger); }
.btn.small { padding: 8px 12px; font-size: 13px; }
.btn:active { transform: scale(.97); }

hr { border: 0; border-top: 1px solid var(--line); margin: 18px 0; }
.settings { display: flex; flex-direction: column; gap: 8px; }
.settings label { font-size: 13px; color: var(--muted); }
.status { margin-top: 10px; font-size: 13px; min-height: 18px; }
.status.err { color: var(--danger); }
.status.ok { color: var(--ok); }
.status.wait { color: var(--warn); }

.banner { background: #3a2a12; color: #f5c98a; padding: 10px 14px; border-radius: 10px; font-size: 13px; margin-bottom: 12px; }
.toolbar { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }

.session-list { margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.ws-group { display: flex; flex-direction: column; gap: 8px; }
.ws-head { display: flex; align-items: baseline; gap: 8px; padding: 0 2px; }
.ws-title { font-weight: 700; font-size: 13px; color: var(--text); }
.ws-path { color: var(--muted); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.ws-count { color: var(--muted); font-size: 11px; }
.ws-items { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.session-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; cursor: pointer; }
.session-item:active { border-color: var(--primary); }
.session-item .s-title { font-weight: 600; font-size: 15px; display: flex; justify-content: space-between; gap: 8px; }
.session-item .s-meta { color: var(--muted); font-size: 12px; margin-top: 6px; line-height: 1.5; }
.badge { font-size: 11px; padding: 2px 8px; border-radius: 20px; font-weight: 600; }
.badge.run { background: rgba(34,197,94,.15); color: var(--ok); }
.badge.idle { background: rgba(139,146,158,.15); color: var(--muted); }
.badge.paused { background: rgba(234,179,8,.15); color: var(--warn); }

.detail { display: flex; flex-direction: column; gap: 14px; }
.detail-head { display: flex; align-items: center; gap: 10px; }
.detail-title { font-weight: 700; font-size: 16px; }
.goal-state { background: var(--card2); border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 13px; color: var(--muted); }
.todos { display: flex; flex-direction: column; gap: 8px; }
.todo { display: flex; gap: 10px; align-items: flex-start; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.todo .mark { margin-top: 2px; }
.todo .t-body { flex: 1; }
.todo .t-text { font-size: 14px; }
.todo .t-meta { font-size: 11px; color: var(--muted); margin-top: 3px; }
.todo.done .t-text { color: var(--muted); text-decoration: line-through; }
.todo.in_progress .t-text { color: var(--primary); }

.conversation { display: flex; flex-direction: column; gap: 8px; }
.conv-head { display: flex; align-items: center; justify-content: space-between; font-size: 13px; font-weight: 600; }
.messages { display: flex; flex-direction: column; gap: 10px; max-height: 60vh; overflow-y: auto; padding: 2px; }
.msg { border-radius: 12px; padding: 10px 12px; font-size: 14px; line-height: 1.6; white-space: pre-wrap; word-break: break-word; border: 1px solid var(--line); }
.msg.user { background: var(--card2); border-color: var(--primary); }
.msg.assistant { background: var(--card); }
.msg-role { font-size: 11px; color: var(--muted); margin-bottom: 5px; font-weight: 600; }
.msg-empty { color: var(--muted); font-size: 13px; padding: 14px; text-align: center; }

.controls { display: flex; gap: 8px; }
.controls .btn { flex: 1; }
.prompt-box { display: flex; flex-direction: column; gap: 8px; }

.toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); background: #000c; color: #fff;
  padding: 10px 18px; border-radius: 10px; font-size: 13px; z-index: 50; max-width: 86%; text-align: center; }