:root {
  --bg: #f5f6f8; --panel: #ffffff; --panel-2: #eef0f3; --border: #dde1e7; --text: #1b1f2a; --muted: #6b7280;
  --accent: #e8590c; --accent-text: #ffffff; --ok: #2f9e44; --warn: #e67700; --info: #1971c2; --danger: #c92a2a;
  --agent-bg: #f8f5ff; --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);
  --radius: 12px; --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1117; --panel: #171a23; --panel-2: #1f2330; --border: #2a2f3d; --text: #e6e8ee; --muted: #9aa1b1;
    --accent: #f4a261; --accent-text: #1b1f2a; --agent-bg: #1a1830; --shadow: 0 1px 2px rgba(0,0,0,.4);
  }
}
:root[data-theme="dark"] {
  --bg: #0f1117; --panel: #171a23; --panel-2: #1f2330; --border: #2a2f3d; --text: #e6e8ee; --muted: #9aa1b1;
  --accent: #f4a261; --accent-text: #1b1f2a; --agent-bg: #1a1830; --shadow: 0 1px 2px rgba(0,0,0,.4);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--info); }
button, input, select, textarea { font: inherit; color: inherit; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.grow { flex: 1; }
.only-mobile { display: none; }
code { font-family: var(--mono); font-size: .92em; background: var(--panel-2); padding: .1em .35em; border-radius: 5px; }
pre { background: var(--panel-2); padding: 10px 12px; border-radius: 8px; overflow: auto; font-size: 13px; line-height: 1.45; }
pre code { background: none; padding: 0; }

/* Topbar */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.livedot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); opacity: .5; }
.livedot.on { background: var(--ok); opacity: 1; box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent); }
.btn { border: 1px solid var(--border); background: var(--panel); border-radius: 9px; padding: 7px 13px; cursor: pointer; font-weight: 600; font-size: 14px; }
.btn:hover { background: var(--panel-2); }
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: transparent; }
.btn.primary:hover { filter: brightness(1.05); }
.btn.ghost { background: transparent; }
.btn.small { padding: 4px 9px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }
.iconbtn { border: 0; background: transparent; font-size: 18px; cursor: pointer; padding: 6px 8px; border-radius: 8px; }
.iconbtn:hover { background: var(--panel-2); }
.userchip { display: flex; align-items: center; gap: 8px; border: 1px solid var(--border); background: var(--panel); border-radius: 999px; padding: 4px 12px 4px 4px; cursor: pointer; font-weight: 600; }
.avatar { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--c, #888); color: #fff; font-weight: 700; font-size: 13px; flex: none; }
.avatar.agent { background: color-mix(in srgb, var(--c, #888) 18%, var(--panel)); color: var(--c, #888); border: 2px solid var(--c, #888); }
.avatar.agent::after { content: "✦"; font-size: 11px; }
.avatar.sys { background: var(--panel-2); color: var(--muted); }

/* Layout */
.layout { display: grid; grid-template-columns: 330px 1fr; height: calc(100% - 56px); }
.sidebar { border-right: 1px solid var(--border); background: var(--panel); display: flex; flex-direction: column; min-height: 0; }
.filters { display: flex; gap: 6px; padding: 12px 12px 6px; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); background: transparent; border-radius: 999px; padding: 3px 11px; font-size: 13px; cursor: pointer; }
.chip.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.search { margin: 6px 12px 10px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--bg); }
.topiclist { overflow: auto; flex: 1; }
.topic { display: block; width: 100%; text-align: left; padding: 11px 14px; border: 0; border-bottom: 1px solid var(--border); background: transparent; cursor: pointer; }
.topic:hover { background: var(--panel-2); }
.topic.active { background: color-mix(in srgb, var(--accent) 12%, var(--panel)); }
.topic .t-row { display: flex; align-items: center; gap: 8px; }
.topic .t-title { font-weight: 600; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topic.unread .t-title { font-weight: 800; }
.topic .t-sub { display: flex; align-items: center; gap: 8px; margin-top: 3px; font-size: 13px; color: var(--muted); }
.topic .t-sub .ex { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.badge { background: var(--accent); color: var(--accent-text); border-radius: 999px; font-size: 11.5px; font-weight: 700; padding: 1px 7px; }
.avatars { display: flex; }
.avatars .avatar { width: 20px; height: 20px; font-size: 10px; margin-left: -5px; border: 2px solid var(--panel); }
.avatars .avatar.agent::after { font-size: 8px; }
.avatars .avatar:first-child { margin-left: 0; }
.pill { display: inline-block; border-radius: 999px; padding: 1px 9px; font-size: 12px; font-weight: 700; letter-spacing: .01em; white-space: nowrap; }
.pill.open { background: color-mix(in srgb, var(--info) 15%, transparent); color: var(--info); }
.pill.decision { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.pill.decided { background: color-mix(in srgb, var(--ok) 16%, transparent); color: var(--ok); }
.pill.closed { background: var(--panel-2); color: var(--muted); }
.topiclist .empty-list { padding: 30px 16px; text-align: center; color: var(--muted); }

/* Thread */
.thread { display: flex; flex-direction: column; min-height: 0; }
#topicView { display: flex; flex-direction: column; height: 100%; min-height: 0; }
.empty { margin: auto; text-align: center; color: var(--muted); max-width: 380px; padding: 24px; }
.empty h2 { color: var(--text); margin: 12px 0 6px; }
.thread-head { display: flex; align-items: flex-start; gap: 12px; padding: 16px 22px 12px; border-bottom: 1px solid var(--border); background: var(--panel); }
.thread-title { flex: 1; min-width: 0; }
.thread-title h1 { font-size: 19px; margin: 0 0 4px; line-height: 1.3; letter-spacing: -.01em; }
.thread-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.tags { color: var(--muted); font-size: 13px; }
.tags span { background: var(--panel-2); border-radius: 6px; padding: 1px 7px; margin-right: 4px; }
.select { border: 1px solid var(--border); background: var(--panel); border-radius: 8px; padding: 6px 8px; }
.messages { flex: 1; overflow: auto; padding: 18px 22px; display: flex; flex-direction: column; gap: 14px; }
.msg { display: grid; grid-template-columns: 34px 1fr; gap: 10px; max-width: 900px; }
.msg > div { min-width: 0; }
.msg .avatar { width: 34px; height: 34px; font-size: 14px; }
.msg-head { display: flex; align-items: baseline; gap: 8px; font-size: 13px; margin-bottom: 3px; }
.msg-head .name { font-weight: 700; color: var(--c, var(--text)); }
.msg-head .kind { color: var(--muted); font-size: 12px; }
.msg-body { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; box-shadow: var(--shadow); overflow-wrap: anywhere; }
.msg.agent .msg-body { background: var(--agent-bg); }
.msg-body > :first-child { margin-top: 0; } .msg-body > :last-child { margin-bottom: 0; }
.msg-body p { margin: .4em 0; } .msg-body ul, .msg-body ol { padding-left: 1.3em; margin: .4em 0; }
.msg-body h1, .msg-body h2, .msg-body h3 { font-size: 1.05em; margin: .6em 0 .3em; }
.msg-body blockquote { margin: .4em 0; padding-left: 10px; border-left: 3px solid var(--border); color: var(--muted); }
.msg-body table { border-collapse: collapse; font-size: 13.5px; } .msg-body td, .msg-body th { border: 1px solid var(--border); padding: 3px 8px; }
.mention { color: var(--info); font-weight: 600; background: color-mix(in srgb, var(--info) 12%, transparent); border-radius: 5px; padding: 0 3px; }
.msg.system { grid-template-columns: 1fr; justify-items: center; }
.msg.system .msg-body { background: transparent; border: 0; box-shadow: none; color: var(--muted); font-size: 13.5px; text-align: center; padding: 2px 0; }
.msg.vote .msg-body { padding: 6px 12px; font-size: 14px; }
.dec { border: 1px solid color-mix(in srgb, var(--warn) 50%, var(--border)); background: color-mix(in srgb, var(--warn) 6%, var(--panel)); border-radius: var(--radius); padding: 12px 14px; margin-top: 8px; }
.dec.decided { border-color: color-mix(in srgb, var(--ok) 50%, var(--border)); background: color-mix(in srgb, var(--ok) 6%, var(--panel)); }
.dec h4 { margin: 0 0 8px; font-size: 14px; display: flex; gap: 8px; align-items: center; }
.dec .opts { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.dec .opt { border: 1px solid var(--border); background: var(--panel); border-radius: 9px; padding: 7px 12px; cursor: pointer; font-weight: 600; }
.dec .opt:hover { border-color: var(--accent); }
.dec .opt.mine { background: var(--accent); color: var(--accent-text); border-color: transparent; }
.dec .opt:disabled { cursor: default; opacity: .9; }
.dec .votes { display: flex; flex-direction: column; gap: 4px; font-size: 13.5px; }
.dec .votes .v { display: flex; align-items: center; gap: 8px; }
.dec .votes .avatar { width: 20px; height: 20px; font-size: 10px; }
.dec .result { font-weight: 700; color: var(--ok); margin-top: 6px; }
.dec .resolve { display: flex; gap: 8px; margin-top: 10px; }
.dec .resolve input { flex: 1; padding: 6px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); }
.dec .comment { width: 100%; margin-top: 8px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--panel); }
.composer { border-top: 1px solid var(--border); background: var(--panel); padding: 12px 22px; }
.composer textarea { width: 100%; resize: vertical; min-height: 58px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); }
.composer-row { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.check { display: flex; align-items: center; gap: 6px; font-size: 13.5px; color: var(--muted); }

/* Dialoge */
.dlg { border: 1px solid var(--border); border-radius: 16px; background: var(--panel); color: var(--text); padding: 22px 24px; width: min(560px, calc(100vw - 32px)); box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.dlg.wide { width: min(760px, calc(100vw - 32px)); max-height: calc(100vh - 40px); }
.dlg::backdrop { background: rgba(0,0,0,.45); }
.dlg h2 { margin: 0 0 14px; font-size: 18px; }
.dlg label { display: block; font-weight: 600; font-size: 13.5px; margin-bottom: 12px; }
.dlg label input, .dlg label textarea, .dlg label select { display: block; width: 100%; margin-top: 5px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--bg); font-weight: 400; }
.dlg .row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.dlg-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.dlg-head { display: flex; align-items: center; justify-content: space-between; }
.settings section { padding: 14px 0; border-top: 1px solid var(--border); }
.settings section:first-child { border-top: 0; padding-top: 4px; }
.settings h3 { margin: 0 0 6px; font-size: 15px; }
.settings p { margin: 4px 0 8px; }
.settings pre { position: relative; white-space: pre-wrap; word-break: break-all; }
.settings .copy { position: absolute; top: 6px; right: 6px; }
.settings .inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.settings .inline input { flex: 1; min-width: 220px; padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 9px 16px; border-radius: 10px; font-weight: 600; z-index: 50; box-shadow: var(--shadow); }
.toast.err { background: var(--danger); color: #fff; }

/* Login */
.login-body { display: grid; place-items: center; padding: 16px; }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 28px; width: min(420px, 100%); box-shadow: var(--shadow); }
.login-card .brand { font-size: 20px; margin-bottom: 8px; }
.login-card label { display: block; font-weight: 600; margin: 14px 0 6px; }
.login-card input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 9px; background: var(--bg); margin-bottom: 12px; }
.login-card .btn { width: 100%; padding: 10px; }

@media (max-width: 800px) {
  .only-mobile { display: inline-block; }
  .layout { grid-template-columns: 1fr; }
  .layout.show-thread .sidebar { display: none; }
  .layout:not(.show-thread) .thread { display: none; }
  .topbar { padding: 0 10px; gap: 8px; }
  .brand span { display: none; }
  #newTopicBtn { padding: 7px 10px; }
  .userchip span:last-child { display: none; }
  .thread-head, .messages, .composer { padding-left: 14px; padding-right: 14px; }
  .msg { grid-template-columns: 30px 1fr; gap: 8px; }
  .msg .avatar { width: 30px; height: 30px; font-size: 12px; }
}