:root {
  --primary: #1F7A5A;
  --primary-dark: #145C43;
  --accent: #C0392B;
  --text: #1F2933;
  --muted: #7B8794;
  --line: #E4E7EB;
  --bg: #F5F7F6;
  --card: #FFFFFF;
  --code-bg: #1E2A32;
}

* { box-sizing: border-box; }

body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC",
               "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-size: 15px; line-height: 1.6;
}

/* ── 頁首 ─────────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--primary); color: #fff; padding: 14px 22px;
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 26px; }
.topbar h1 { margin: 0; font-size: 17px; }
.topbar p { margin: 2px 0 0; font-size: 12px; opacity: .85; }
.status {
  font-size: 12px; background: rgba(255, 255, 255, .16);
  padding: 6px 12px; border-radius: 99px; white-space: nowrap;
}
.status.bad { background: #C0392B; }

/* ── 版面 ─────────────────────────────────────────────── */
.layout {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 16px; padding: 16px; max-width: 1400px; margin: 0 auto;
  align-items: start;
}
@media (max-width: 1000px) { .layout { grid-template-columns: 1fr; } }

.panel {
  background: var(--card); border-radius: 14px;
  box-shadow: 0 2px 12px rgba(31, 41, 51, .07);
  display: flex; flex-direction: column; overflow: hidden;
}
.chat-panel { height: calc(100vh - 116px); min-height: 520px; }
.debug-panel { height: calc(100vh - 116px); min-height: 520px; }
@media (max-width: 1000px) {
  .chat-panel, .debug-panel { height: auto; max-height: 78vh; }
}

.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
}
.panel-head h2 { margin: 0; font-size: 14px; color: var(--muted); font-weight: 600; }

.mini-btn {
  border: 1px solid var(--line); background: #fff; color: var(--text);
  border-radius: 8px; padding: 5px 11px; font-size: 12px; cursor: pointer;
  text-decoration: none; display: inline-block;
}
.mini-btn:hover { background: #F1F4F2; }

/* ── 訊息 ─────────────────────────────────────────────── */
.messages { flex: 1; overflow-y: auto; padding: 16px; }

.msg { margin-bottom: 14px; display: flex; }
.msg.user { justify-content: flex-end; }

.bubble {
  max-width: 86%; padding: 11px 14px; border-radius: 14px;
  white-space: pre-wrap; word-break: break-word; font-size: 14px;
}
.msg.user .bubble { background: var(--primary); color: #fff; border-bottom-right-radius: 4px; }
.msg.bot .bubble { background: #F1F4F2; border-bottom-left-radius: 4px; }

.kind-tag {
  display: inline-block; font-size: 10px; padding: 2px 7px; border-radius: 99px;
  background: #E8F3EE; color: var(--primary-dark); margin-bottom: 6px;
}

.actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.action-btn {
  border: 1px solid var(--primary); background: #fff; color: var(--primary);
  border-radius: 99px; padding: 6px 13px; font-size: 12.5px; cursor: pointer;
}
.action-btn:hover { background: var(--primary); color: #fff; }
.action-btn.link { border-color: var(--line); color: var(--muted); }
.action-btn.link:hover { background: #F1F4F2; color: var(--text); }

.sources { margin-top: 10px; font-size: 11.5px; color: var(--muted); }
.sources a { color: var(--primary-dark); }

.typing { display: flex; gap: 4px; padding: 6px 2px; }
.typing span {
  width: 7px; height: 7px; border-radius: 50%; background: var(--muted);
  animation: blink 1.3s infinite;
}
.typing span:nth-child(2) { animation-delay: .18s; }
.typing span:nth-child(3) { animation-delay: .36s; }
@keyframes blink { 0%, 60%, 100% { opacity: .25; } 30% { opacity: 1; } }

/* ── 範例 / 輸入 ──────────────────────────────────────── */
.samples {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 10px 16px; border-top: 1px solid var(--line); background: #FAFBFA;
}
.samples button {
  border: 1px solid var(--line); background: #fff; border-radius: 99px;
  padding: 5px 11px; font-size: 12px; cursor: pointer; color: var(--text);
}
.samples button:hover { border-color: var(--primary); color: var(--primary); }

.composer { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--line); }
.composer input {
  flex: 1; border: 1px solid var(--line); border-radius: 10px;
  padding: 11px 14px; font-size: 14px; outline: none; font-family: inherit;
}
.composer input:focus { border-color: var(--primary); }
.composer button {
  border: 0; background: var(--primary); color: #fff; border-radius: 10px;
  padding: 0 20px; font-size: 14px; cursor: pointer; font-weight: 600;
}
.composer button:disabled { opacity: .5; cursor: default; }

/* ── Debug ────────────────────────────────────────────── */
.debug { flex: 1; overflow-y: auto; padding: 16px; font-size: 13px; }
.hint { color: var(--muted); font-size: 13px; }

.debug-section { margin-bottom: 18px; }
.debug-section h3 {
  margin: 0 0 8px; font-size: 12px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .06em;
}

.kv { display: grid; grid-template-columns: 92px 1fr; gap: 4px 10px; }
.kv .k { color: var(--muted); font-size: 12.5px; }
.kv .v { word-break: break-word; font-size: 13px; }

.badge {
  display: inline-block; padding: 2px 8px; border-radius: 99px;
  font-size: 11px; font-weight: 600;
}
.badge.rule { background: #E8F3EE; color: var(--primary-dark); }
.badge.llm  { background: #EAF0FB; color: #2C5AA0; }
.badge.high { background: #E8F3EE; color: var(--primary-dark); }
.badge.mid  { background: #FFF7E6; color: #B7791F; }
.badge.low  { background: #FDECEA; color: var(--accent); }

.bar { height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; margin-top: 4px; }
.bar i { display: block; height: 100%; background: var(--primary); }

table.tools { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.tools th, table.tools td {
  text-align: left; padding: 5px 6px; border-bottom: 1px solid var(--line);
}
table.tools th { color: var(--muted); font-weight: 600; font-size: 11.5px; }
table.tools td.ms { text-align: right; color: var(--muted); white-space: nowrap; }

pre {
  background: var(--code-bg); color: #E6EDF3; padding: 11px 13px;
  border-radius: 8px; overflow-x: auto; font-size: 11.5px; line-height: 1.55;
  margin: 0;
}

.chunk {
  border-left: 3px solid var(--primary); padding: 8px 11px;
  background: #FAFBFA; margin-bottom: 8px; border-radius: 0 6px 6px 0;
}
.chunk .meta { font-size: 11px; color: var(--muted); margin-bottom: 4px; }
.chunk .score { float: right; font-variant-numeric: tabular-nums; }