/* Full-screen office kiosk chat shell */
html,
body.office-chat-body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #0a1628;
}

body.office-chat-body:not(.dark-mode) {
  background: #f4f8fa;
}

.office-shell {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

.office-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(0, 200, 180, 0.12);
  background: rgba(2, 12, 18, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

body.office-chat-body:not(.dark-mode) .office-header {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: rgba(0, 130, 150, 0.15);
}

.office-title {
  font-family: 'Courier New', monospace;
  letter-spacing: 0.08em;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
}

body.office-chat-body:not(.dark-mode) .office-title {
  color: var(--logo-name-color, #007a6e);
}

.office-spacer {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
}

.office-hint {
  font-size: 12px;
  color: rgba(0, 229, 204, 0.75);
}

body.office-chat-body:not(.dark-mode) .office-hint {
  color: rgba(0, 122, 110, 0.85);
}

#office-chat-target {
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.office-chat-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.88);
  max-width: 520px;
  margin: 0 auto;
}

body.office-chat-body:not(.dark-mode) .office-chat-placeholder {
  color: var(--text-color, #333);
}

.office-chat-placeholder i {
  font-size: 3rem;
  color: var(--primary-color, #00e5cc);
  margin-bottom: 1rem;
}

.office-chat-placeholder h2 {
  font-size: 1.35rem;
  margin: 0 0 0.75rem;
}

.office-chat-placeholder p {
  line-height: 1.6;
  margin: 0 0 1rem;
  opacity: 0.9;
}

.office-chat-placeholder code {
  font-size: 0.85rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.25);
}

body.office-chat-body:not(.dark-mode) .office-chat-placeholder code {
  background: rgba(0, 0, 0, 0.06);
}

.office-chat-placeholder .btn {
  margin-top: 0.5rem;
}