:root {
  --bg: #f3f4f6;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --accent: #0d9488;
  --accent-strong: #0f766e;
  --danger: #b91c1c;
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.12);
}

[data-theme="dark"] {
  --bg: #0b1220;
  --panel: #111a2e;
  --text: #e2e8f0;
  --muted: #9aa8be;
  --border: #1f2b43;
  --accent: #14b8a6;
  --accent-strong: #0d9488;
  --danger: #f87171;
  --shadow: 0 12px 34px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

a {
  color: var(--accent);
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 56px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.01em;
}

.toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn,
button {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 14px;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

button:disabled,
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.ghost {
  background: transparent;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-size: 12px;
  color: var(--muted);
}

.layout {
  width: min(1100px, 100%);
  margin: 18px auto;
  padding: 0 12px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.chat-card {
  display: flex;
  flex-direction: column;
  height: min(82vh, 760px);
}

.chat-body {
  flex: 1;
  overflow: auto;
  padding: 14px;
}

.bubble {
  max-width: 86%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  white-space: pre-wrap;
  line-height: 1.45;
  margin-bottom: 8px;
}

.bubble.user {
  margin-left: auto;
  background: color-mix(in srgb, var(--accent) 17%, var(--panel));
}

.bubble.assistant {
  margin-right: auto;
  background: color-mix(in srgb, var(--panel) 96%, transparent);
}

.bubble.admin {
  margin-right: auto;
  background: color-mix(in srgb, #f59e0b 15%, var(--panel));
}

.bubble p {
  margin: 0 0 8px;
}

.bubble p:last-child {
  margin-bottom: 0;
}

.bubble a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.bubble ul,
.bubble ol {
  margin: 6px 0 6px 18px;
  padding: 0;
}

.bubble li {
  margin: 2px 0;
}

.msg-row {
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
}

.msg-row.user .bubble {
  margin-left: auto;
  margin-right: 0;
}

.msg-row.assistant .bubble,
.msg-row.admin .bubble {
  margin-right: auto;
  margin-left: 0;
}

.msg-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 4px;
}

.msg-row.user .msg-label {
  text-align: right;
}

.msg-label.admin {
  color: #d97706;
}

[data-theme="dark"] .msg-label.admin {
  color: #fbbf24;
}

.session-status {
  border-style: solid;
}

.session-status.bot {
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  color: var(--muted);
}

.session-status.human {
  background: color-mix(in srgb, #f59e0b 22%, var(--panel));
  border-color: color-mix(in srgb, #f59e0b 45%, var(--border));
  color: #92400e;
}

[data-theme="dark"] .session-status.human {
  color: #fde68a;
}

.session-status.closed {
  background: color-mix(in srgb, #22c55e 18%, var(--panel));
  border-color: color-mix(in srgb, #22c55e 40%, var(--border));
  color: #166534;
}

[data-theme="dark"] .session-status.closed {
  color: #bbf7d0;
}

.status-banner {
  padding: 10px 12px;
  border-radius: 12px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
}

.status-banner.open {
  background: color-mix(in srgb, var(--border) 35%, var(--panel));
  color: var(--muted);
}

.status-banner.human_intervened {
  background: color-mix(in srgb, #f59e0b 20%, var(--panel));
  color: #92400e;
}

[data-theme="dark"] .status-banner.human_intervened {
  color: #fef3c7;
}

.status-banner.closed {
  background: color-mix(in srgb, #22c55e 16%, var(--panel));
  color: #166534;
}

[data-theme="dark"] .status-banner.closed {
  color: #bbf7d0;
}

.pill.status-open {
  border-color: color-mix(in srgb, var(--border) 80%, var(--muted));
  color: var(--muted);
}

.pill.status-human {
  background: color-mix(in srgb, #f59e0b 18%, var(--panel));
  border-color: #f59e0b;
  color: #92400e;
}

[data-theme="dark"] .pill.status-human {
  color: #fde68a;
}

.pill.status-closed {
  background: color-mix(in srgb, #22c55e 14%, var(--panel));
  border-color: #22c55e;
  color: #166534;
}

[data-theme="dark"] .pill.status-closed {
  color: #bbf7d0;
}

.admin-filters {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.admin-filters select {
  max-width: 220px;
}

.meta {
  font-size: 12px;
  color: var(--muted);
  margin: 2px 0 10px;
}

.composer {
  border-top: 1px solid var(--border);
  padding: 10px;
  display: flex;
  gap: 8px;
}

.composer textarea,
.composer input[type="text"],
input[type="search"],
select {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  resize: vertical;
}

.composer textarea {
  min-height: 42px;
  max-height: 160px;
}

.grid {
  display: grid;
  gap: 10px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.suggestion {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  background: color-mix(in srgb, var(--panel) 95%, transparent);
  cursor: pointer;
}

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

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

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

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

.table-wrap {
  overflow: auto;
}

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

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 8px;
  text-align: left;
  font-size: 13px;
}

.admin-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 12px;
}

.list {
  max-height: 74vh;
  overflow: auto;
}

.list-item {
  border-bottom: 1px solid var(--border);
  padding: 10px;
  cursor: pointer;
}

.list-item:hover,
.list-item.active {
  background: color-mix(in srgb, var(--accent) 11%, var(--panel));
}

.pill {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.hint {
  font-size: 12px;
  color: var(--muted);
}

.widget-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  height: 44px;
  width: 44px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 10px 28px color-mix(in srgb, var(--accent) 45%, transparent);
  z-index: 999999;
}

.widget-panel {
  position: fixed;
  right: 18px;
  bottom: 74px;
  width: min(420px, calc(100vw - 24px));
  height: min(680px, calc(100vh - 92px));
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--panel);
  z-index: 999998;
}

.widget-panel iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 860px) {
  .grid.two {
    grid-template-columns: 1fr;
  }
  .admin-layout {
    grid-template-columns: 1fr;
  }
  .chat-card {
    height: calc(100vh - 92px);
  }
}