.session-timer {
  position: fixed;
  z-index: 12;
  top: 14px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #fff;
  color: var(--muted);
  box-shadow: 0 5px 20px #09281e12;
  font-size: 11px;
}

.session-timer b {
  min-width: 48px;
  color: var(--ink);
  font: 700 14px DM Mono, monospace;
  text-align: right;
}

.session-timer.warning {
  border-color: #efd493;
  background: #fff9eb;
}

.session-timer.warning b { color: #9a5a00; }

@media (max-width: 850px) {
  .session-timer { top: 8px; right: 8px; padding: 6px 9px; }
  .session-timer span { display: none; }
}