:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --line: #d9dee7;
  --text: #1d2430;
  --muted: #657084;
  --accent: #116b5f;
  --accent-2: #255fa8;
  --danger: #b42318;
  --warn: #a15c07;
  --ok: #16803c;
  --focus: #8bb8ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  min-height: 34px;
  padding: 0 12px;
  cursor: pointer;
}

button:hover {
  border-color: var(--accent-2);
}

button:focus,
input:focus,
textarea:focus {
  outline: 3px solid var(--focus);
  outline-offset: 1px;
}

button.danger {
  border-color: #f0b8b2;
  color: var(--danger);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 8px 10px;
}

textarea {
  min-height: 220px;
  resize: vertical;
  line-height: 1.45;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 68px;
  padding: 14px 22px;
  background: #202a36;
  color: #fff;
}

.topbar h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0;
}

.topbar p {
  margin: 2px 0 0;
  color: #c3cedd;
}

.auth {
  display: grid;
  grid-template-columns: minmax(160px, 260px) auto auto;
  gap: 8px;
}

.tabs {
  display: flex;
  gap: 2px;
  padding: 8px 22px 0;
  border-bottom: 1px solid var(--line);
  background: #eef2f6;
}

.tab {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-color: transparent;
}

.tab.active {
  background: var(--surface);
  color: var(--accent);
  border-color: var(--line);
  border-bottom-color: var(--surface);
}

main {
  padding: 16px 22px 28px;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(7, minmax(110px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.kpi {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 12px;
}

.kpi span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.kpi strong {
  display: block;
  margin-top: 6px;
  font-size: 22px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.split {
  display: grid;
  grid-template-columns: minmax(440px, 0.9fr) minmax(520px, 1.1fr);
  gap: 14px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  min-width: 0;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 54px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}

.panel h2 {
  margin: 0;
  font-size: 16px;
}

.table-wrap {
  overflow: auto;
  max-height: 68vh;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  background: #f8fafc;
  color: var(--muted);
  font-size: 12px;
  z-index: 1;
}

tr.selectable {
  cursor: pointer;
}

tr.selectable:hover {
  background: #f4f9f8;
}

.confidence-low {
  color: var(--danger);
  font-weight: 700;
}

.confidence-mid {
  color: var(--warn);
  font-weight: 700;
}

.confidence-high {
  color: var(--ok);
  font-weight: 700;
}

.detail {
  min-height: 68vh;
}

.muted {
  color: var(--muted);
}

.thread-meta,
.message-list,
.draft-box,
.queue-list,
.kb-form {
  padding: 12px;
}

.thread-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
  border-bottom: 1px solid var(--line);
}

.meta-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.message {
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}

.message-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 10px;
  background: #f8fafc;
  border-bottom: 1px solid var(--line);
}

.message-body {
  white-space: pre-wrap;
  padding: 10px;
  max-height: 220px;
  overflow: auto;
}

.draft-box {
  border-top: 1px solid var(--line);
}

.draft-box label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.result {
  min-height: 18px;
  color: var(--muted);
}

.queue-item {
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

.queue-item:first-child {
  padding-top: 0;
}

.queue-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.queue-item p {
  margin: 6px 0;
  white-space: pre-wrap;
}

.inline-tools {
  display: grid;
  grid-template-columns: minmax(180px, 280px) auto;
  gap: 8px;
}

.kb-form {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) minmax(240px, 1.2fr) auto;
  gap: 8px;
  border-bottom: 1px solid var(--line);
}

.kb-form textarea {
  min-height: 72px;
}

pre {
  margin: 0;
  padding: 12px;
  overflow: auto;
  min-height: 240px;
  white-space: pre-wrap;
}

@media (max-width: 1100px) {
  .kpi-row {
    grid-template-columns: repeat(2, minmax(130px, 1fr));
  }

  .split {
    grid-template-columns: 1fr;
  }

  .auth {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .kb-form {
    grid-template-columns: 1fr;
  }
}