:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #111318;
  color: #edf1f7;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  background: #111318;
}

button { font: inherit; }

.app-shell {
  width: min(1480px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 36px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 4px;
  color: #9aa8bb;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1, h2, p { margin: 0; }

h1 {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.refresh-button,
.session-card__actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 36px;
  border: 1px solid #303847;
  border-radius: 7px;
  background: #191d25;
  color: #edf1f7;
  cursor: pointer;
}

.refresh-button { padding: 0 14px; }

.session-card__actions button {
  width: 100%;
  padding: 0 10px;
}

.session-card__actions button:disabled {
  cursor: not-allowed;
  color: #7f8ca0;
  background: #151922;
}

.alert {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  margin-bottom: 16px;
  padding: 0 12px;
  border: 1px solid #8a5630;
  border-radius: 7px;
  background: #231a14;
  color: #ffbf80;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric,
.panel,
.session-card {
  border: 1px solid #2a313f;
  border-radius: 8px;
  background: #171b23;
}

.metric {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  min-height: 96px;
  padding: 14px;
}

.metric__icon {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 7px;
  background: #202733;
  color: #9fb9ff;
}

.metric__value {
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.05;
}

.metric__label {
  margin-top: 4px;
  color: #d6deeb;
  font-weight: 700;
}

.metric__sublabel {
  margin-top: 5px;
  color: #8e9caf;
  font-size: 0.82rem;
  line-height: 1.25;
}

.metric--good .metric__icon,
.status-pill--idle { color: #6ee7a8; }

.metric--warn .metric__icon,
.status-pill--waiting { color: #ffd166; }

.metric--bad .metric__icon,
.status-pill--error { color: #ff8f8f; }

.metric--info .metric__icon,
.status-pill--active { color: #8ec7ff; }

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
  align-items: start;
}

.panel { padding: 16px; }

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel__head h2,
.session-card h2 {
  font-size: 1rem;
  letter-spacing: 0;
}

.panel__head span,
.session-card__age {
  color: #8794a8;
  font-size: 0.82rem;
  white-space: nowrap;
}

.sessions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.session-card {
  display: flex;
  min-height: 214px;
  flex-direction: column;
  padding: 14px;
}

.session-card--active { border-color: #315c88; }
.session-card--waiting { border-color: #816632; }
.session-card--error { border-color: #8a3f3f; }

.session-card__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.session-card__identity { min-width: 0; }

.session-card h2 {
  margin-top: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-card__quote {
  margin-top: 5px;
  overflow: hidden;
  color: #9faabd;
  font-size: 0.82rem;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: #202733;
  font-size: 0.78rem;
  font-weight: 800;
}

.session-card__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.session-card__meta span {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  color: #a9b5c7;
  font-size: 0.82rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-card__preview {
  display: -webkit-box;
  flex: 1;
  overflow: hidden;
  color: #c4ccda;
  font-size: 0.9rem;
  line-height: 1.42;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.session-card__actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.lane-list { display: grid; gap: 10px; }

.lane-row,
.empty-state {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #c4ccda;
  line-height: 1.35;
}

.lane-row {
  min-height: 46px;
  padding: 10px;
  border: 1px solid #2a313f;
  border-radius: 7px;
  background: #141820;
}

.empty-state {
  min-height: 130px;
  justify-content: center;
  border: 1px dashed #364154;
  border-radius: 8px;
}

.spin { animation: spin 0.9s linear infinite; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 1120px) {
  .metrics-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .workspace-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100vw - 20px, 720px);
    padding-top: 16px;
  }

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

  .metrics-grid,
  .sessions-grid { grid-template-columns: 1fr; }

  .session-card__meta,
  .session-card__actions { grid-template-columns: 1fr; }
}