:root {
  --bg: #0b0e1a;
  --panel: #141828;
  --panel2: #1c2233;
  --text: #f3f4fb;
  --muted: #8b93a7;
  --accent: #ff7a1a;
  --green: #33d17a;
  --red: #ff5d5d;
  --border: #2a3146;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(20,24,40,.9), rgba(11,14,26,.9));
}

.brand { display: flex; align-items: center; gap: 12px; }
.logo {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #ffb45e);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; color: #1a1208;
}
h1 { font-size: 18px; }
.subtitle { color: var(--muted); font-size: 12px; }
.account { color: var(--muted); font-size: 13px; }
.topnav { display: flex; align-items: center; gap: 14px; }
.topnav a { color: var(--muted); text-decoration: none; font-size: 13px; }
.topnav a:hover { color: var(--text); }

.login-card, .chat-card {
  max-width: 920px;
  margin: 5vh auto 0;
  padding: 20px;
}

.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  max-width: 480px;
  padding: 28px;
}

.login-card h2 { margin-bottom: 8px; }
.hint { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.hint.small { margin-top: 14px; margin-bottom: 0; font-size: 12px; }

form.login-card form, #loginForm { display: flex; flex-direction: column; gap: 10px; }

input, textarea {
  width: 100%;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
}

input:focus, textarea:focus { border-color: var(--accent); }

button {
  background: var(--accent);
  border: 0;
  color: #1a1208;
  font-weight: 700;
  border-radius: 10px;
  padding: 12px 18px;
  cursor: pointer;
}
button:disabled { opacity: .5; cursor: not-allowed; }

.chat-card {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  height: calc(100vh - 90px);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.signal-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-right: 1px solid var(--border);
  background: var(--panel2);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.panel-head h2 { font-size: 15px; }
.panel-head p { color: var(--muted); font-size: 12px; margin-top: 2px; }
.panel-head .count {
  background: var(--accent);
  color: #1a1208;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 700;
}

@keyframes signal-pop {
  0% { opacity: 0; transform: translateY(-8px) scale(.97); }
  60% { opacity: 1; transform: translateY(1px) scale(1.01); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

.signal-card.pushed {
  animation: signal-pop .5s ease-out;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(255,122,26,.25), 0 6px 18px rgba(255,122,26,.12);
}

.signal-feed {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.signal-empty { color: var(--muted); font-size: 13px; padding: 8px 4px; }

.signal-card {
  border: 1px solid rgba(255,122,26,.35);
  background: rgba(255,122,26,.07);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
  cursor: pointer;
  flex-shrink: 0;
}

.signal-card:hover { border-color: var(--accent); }

.signal-card .s-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.signal-card .s-title { font-weight: 700; font-size: 14px; }

.signal-card .s-badge {
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.signal-card .s-badge.open { background: rgba(51,209,122,.15); color: var(--green); }
.signal-card .s-badge.formation { background: rgba(255,122,26,.18); color: var(--accent); }

.signal-card .s-row { color: var(--muted); font-size: 12px; margin-top: 3px; }
.signal-card .s-time { color: var(--green); }

.chat-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.need-key-banner {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,122,26,.35);
  background: rgba(255,122,26,.08);
  color: var(--text);
  font-size: 14px;
}
.need-key-banner a { color: var(--accent); }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg { max-width: 78%; padding: 10px 14px; border-radius: 14px; line-height: 1.6; font-size: 15px; white-space: pre-wrap; }
.msg.user { align-self: flex-end; background: #25304d; }
.msg.assistant { align-self: flex-start; background: var(--panel2); }
.msg.error { align-self: center; background: rgba(255,93,93,.12); color: var(--red); font-size: 13px; }

.tool-row {
  align-self: flex-start;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}
.chip {
  border: 1px solid var(--border);
  background: var(--panel2);
  border-radius: 999px;
  padding: 3px 9px;
}
.chip.ok { color: var(--green); border-color: rgba(51,209,122,.35); }
.chip.err { color: var(--red); border-color: rgba(255,93,93,.35); }

.composer { display: flex; gap: 10px; padding: 12px; border-top: 1px solid var(--border); }
textarea { resize: none; min-height: 44px; max-height: 160px; }
#sendBtn { width: 90px; }

.disclaimer { padding: 0 14px 12px; color: var(--muted); font-size: 12px; text-align: center; }

.auth-card, .keys-card {
  max-width: 520px;
  margin: 6vh auto 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
}

.keys-card { width: min(680px, 100%); }

.auth-card h2, .keys-card h2 { margin-bottom: 14px; }
.auth-form { display: flex; flex-direction: column; gap: 10px; }
select { width: 100%; background: var(--panel2); border: 1px solid var(--border); border-radius: 10px; color: var(--text); padding: 12px 14px; font-size: 15px; outline: none; }
.field-label { color: var(--muted); font-size: 12px; margin-bottom: -6px; }
.advanced { color: var(--muted); font-size: 13px; }
.advanced summary { cursor: pointer; color: var(--text); }
.field-hint { margin: 6px 0 8px; font-size: 12px; }
.auth-form .row { display: flex; gap: 8px; }
.auth-form .row button { white-space: nowrap; }
.agree { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 6px; }
.form-error { color: var(--red); font-size: 13px; margin-top: 10px; min-height: 16px; }
.form-hint { color: var(--green); font-size: 13px; margin-top: 10px; min-height: 16px; }

.key-create { margin-bottom: 20px; }
.new-key {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(51,209,122,.45);
  background: rgba(51,209,122,.08);
  border-radius: 10px;
  font-size: 13px;
  word-break: break-all;
}
.key-list { display: flex; flex-direction: column; gap: 8px; width: 100%; }
.key-row {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  background: var(--panel2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px;
  font-size: 14px;
  width: 100%;
  min-width: 0;
}
.key-row > div:first-child { min-width: 0; overflow-wrap: anywhere; }
.key-row small { color: var(--muted); font-size: 12px; }
.key-actions { display: flex; gap: 6px; }
.key-actions button { padding: 7px 10px; font-size: 12px; }
.key-token { display: inline-block; margin-top: 6px; font-size: 13px; color: var(--green); word-break: break-all; }
.toast {
  position: fixed; right: 24px; bottom: 24px; z-index: 99;
  background: var(--panel2); color: var(--text);
  border: 1px solid rgba(51,209,122,.45); border-radius: 10px;
  padding: 10px 14px; font-size: 14px; opacity: 0; pointer-events: none;
  transform: translateY(8px); transition: opacity .2s ease, transform .2s ease;
}
.toast.show { opacity: 1; transform: translateY(0); }

.legal-card { max-width: 720px; margin: 5vh auto 0; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 28px; line-height: 1.8; }
.legal-card h2 { margin: 18px 0 6px; font-size: 16px; }
.legal-card p { color: var(--muted); font-size: 14px; }
.legal-notice { color: var(--accent) !important; border: 1px solid rgba(255,122,26,.35); border-radius: 8px; padding: 8px 10px; }

.admin-card { max-width: 900px; margin: 5vh auto 0; padding: 20px; display: flex; flex-direction: column; gap: 18px; }
.admin-card section { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
.admin-card h2 { margin-bottom: 12px; }
.admin-card .key-row { margin-bottom: 8px; }

body.has-sidebar {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  min-height: 100vh;
}

.app-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.side-brand { display: flex; align-items: center; gap: 10px; }
.side-brand h1 { font-size: 16px; }
.side-brand p { color: var(--muted); font-size: 12px; }

.side-nav { display: flex; flex-direction: column; gap: 6px; }
.side-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px;
}
.side-nav a:hover { color: var(--text); background: var(--panel2); }
.side-nav a.active { color: var(--text); background: var(--panel2); border-left: 3px solid var(--accent); }

.side-logout {
  margin-top: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
}

.side-logout:hover { color: var(--red); border-color: rgba(255,93,93,.4); }

body.has-sidebar .chat-card,
body.has-sidebar .keys-card,
body.has-sidebar .admin-card,
body.has-sidebar .auth-card {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 860px) {
  body.has-sidebar { grid-template-columns: 1fr; }
  .app-sidebar { position: static; height: auto; flex-direction: row; align-items: center; overflow-x: auto; }
  .side-nav { flex-direction: row; }
  .side-logout { margin-top: 0; margin-left: auto; }
}

.hidden { display: none !important; }

@media (max-width: 860px) {
  .chat-card { grid-template-columns: 1fr; grid-template-rows: 220px minmax(0, 1fr); }
  .signal-panel { border-right: 0; border-bottom: 1px solid var(--border); }
  .signal-feed { flex-direction: row; overflow-x: auto; overflow-y: hidden; }
  .signal-card { min-width: 240px; }
}