/* worker/frontend/chat-preview.css — CHAT-001 preview chat sheet, deterministic preview CSS
   consistent with the auth-preview visual language (fixed sheet, neon cyan/magenta accents,
   glass panels, [hidden] display none, focus-visible, responsive down to mobile widths). */

.chat-preview-panel {
  position: fixed;
  top: 5.25rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 2090;
  width: min(24rem, calc(100vw - 2rem));
  max-height: calc(100vh - 6.5rem);
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(0, 243, 255, 0.5);
  border-radius: 10px;
  background: rgba(4, 6, 12, 0.96);
  box-shadow: 0 0 24px rgba(0, 243, 255, 0.18);
  color: var(--text-main, #f1f5f9);
  font-family: var(--font-main, sans-serif);
}

.chat-preview-panel[hidden] {
  display: none;
}

.chat-preview-header {
  padding: 0.8rem 0.8rem 0.4rem;
  border-bottom: 1px solid rgba(0, 243, 255, 0.15);
}

.chat-preview-header h2 {
  margin: 0;
  color: var(--neon-cyan, #00f3ff);
  font-family: var(--font-heading, sans-serif);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.chat-preview-status {
  margin: 0.35rem 0 0;
  min-height: 1.1rem;
  font-size: 0.8rem;
  color: var(--text-muted, #a8b2c1);
}

.chat-degraded-banner {
  margin: 0;
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid rgba(255, 0, 85, 0.4);
  background: rgba(255, 0, 85, 0.12);
  color: var(--neon-magenta, #ff0055);
  font: 600 0.72rem var(--font-code, monospace);
}

.chat-degraded-banner[hidden] {
  display: none;
}

.chat-preview-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.6rem 0.8rem 0.8rem;
  overflow: hidden;
  flex: 1 1 auto;
  min-height: 0;
}

.chat-conversation-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-height: 9rem;
  overflow-y: auto;
  padding: 0.2rem;
}

.chat-conversation-btn {
  min-height: 2.25rem;
  padding: 0.35rem 0.6rem;
  border: 1px solid rgba(0, 243, 255, 0.35);
  border-radius: 6px;
  background: rgba(0, 243, 255, 0.06);
  color: inherit;
  font: 600 0.72rem var(--font-code, monospace);
  text-align: left;
  cursor: pointer;
}

.chat-conversation-btn:hover:not(:disabled) {
  background: rgba(0, 243, 255, 0.14);
}

.chat-conversation-btn.active {
  border-color: var(--neon-cyan, #00f3ff);
  background: rgba(0, 243, 255, 0.18);
}

.chat-conversation-btn:focus-visible,
.chat-member-action:focus-visible,
.chat-add-member button:focus-visible,
.chat-send-btn:focus-visible,
.chat-retry-btn:focus-visible,
.chat-load-older:focus-visible,
.chat-modal-card button:focus-visible,
.chat-composer input:focus-visible,
.chat-add-member input:focus-visible,
.chat-add-member select:focus-visible,
.chat-report-reason:focus-visible,
.chat-report-detail:focus-visible {
  outline: 3px solid var(--neon-cyan, #00f3ff);
  outline-offset: 2px;
}

.chat-conversation-view {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 0;
  flex: 1 1 auto;
}

.chat-conversation-view[hidden] {
  display: none;
}

.chat-conversation-title {
  margin: 0;
  color: var(--text-main, #f1f5f9);
  font-family: var(--font-heading, sans-serif);
  font-size: 0.85rem;
}

.chat-member-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.chat-member-badge,
.chat-member {
  padding: 0.25rem 0.5rem;
  border: 1px solid rgba(0, 243, 255, 0.25);
  border-radius: 12px;
  background: rgba(0, 243, 255, 0.06);
  font: 500 0.68rem var(--font-code, monospace);
  color: var(--text-muted, #a8b2c1);
}

.chat-member-action,
.chat-add-member button {
  min-height: 1.8rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid rgba(0, 243, 255, 0.45);
  border-radius: 6px;
  background: rgba(0, 243, 255, 0.08);
  color: inherit;
  font: 600 0.66rem var(--font-code, monospace);
  cursor: pointer;
}

.chat-member-action:hover:not(:disabled),
.chat-add-member button:hover:not(:disabled) {
  background: rgba(0, 243, 255, 0.16);
}

.chat-leave-btn {
  border-color: rgba(255, 0, 85, 0.5);
  background: rgba(255, 0, 85, 0.08);
  color: var(--neon-magenta, #ff0055);
}

.chat-add-member {
  display: flex;
  gap: 0.3rem;
  align-items: center;
}

.chat-add-member input,
.chat-add-member select,
.chat-composer input,
.chat-report-reason,
.chat-report-detail {
  background: rgba(8, 11, 16, 0.9);
  border: 1px solid var(--border-color, rgba(0, 243, 255, 0.3));
  border-radius: 6px;
  color: inherit;
  font: 400 0.74rem var(--font-main, sans-serif);
}

.chat-add-member input {
  width: 8rem;
  padding: 0.3rem 0.45rem;
}

.chat-load-older {
  align-self: center;
  min-height: 2rem;
  padding: 0.3rem 0.8rem;
  border: 1px solid rgba(0, 243, 255, 0.45);
  border-radius: 6px;
  background: rgba(0, 243, 255, 0.08);
  color: inherit;
  font: 600 0.7rem var(--font-code, monospace);
  cursor: pointer;
}

.chat-load-older:hover:not(:disabled) {
  background: rgba(0, 243, 255, 0.16);
}

.chat-load-older[hidden] {
  display: none;
}

.chat-timeline {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  overflow-y: auto;
  min-height: 8rem;
  flex: 1 1 auto;
  padding: 0.3rem 0.2rem;
}

.chat-message {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.4rem 0.5rem;
  border: 1px solid rgba(0, 243, 255, 0.12);
  border-radius: 8px;
  background: rgba(8, 11, 16, 0.65);
  cursor: pointer;
}

.chat-message:hover {
  border-color: rgba(0, 243, 255, 0.35);
}

.chat-message-author {
  font: 600 0.62rem var(--font-code, monospace);
  color: var(--neon-cyan, #00f3ff);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.chat-message-bubble {
  font-size: 0.8rem;
  line-height: 1.45;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.chat-message-state {
  font: 600 0.62rem var(--font-code, monospace);
  color: var(--text-muted, #a8b2c1);
}

.chat-message-state:empty {
  display: none;
}

.chat-composer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(0, 243, 255, 0.15);
}

.chat-reply-bar {
  flex: 1 1 100%;
  margin: 0;
  padding: 0.3rem 0.5rem;
  border-left: 3px solid var(--neon-purple, #a855f7);
  background: rgba(168, 85, 247, 0.1);
  border-radius: 4px;
  font-size: 0.7rem;
  color: var(--text-muted, #a8b2c1);
}

.chat-reply-bar[hidden] {
  display: none;
}

.chat-composer input {
  flex: 1 1 10rem;
  min-height: 2.25rem;
  padding: 0.35rem 0.6rem;
}

.chat-composer input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.chat-send-btn,
.chat-retry-btn {
  min-height: 2.25rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(0, 243, 255, 0.45);
  border-radius: 6px;
  background: rgba(0, 243, 255, 0.12);
  color: inherit;
  font: 700 0.72rem var(--font-code, monospace);
  cursor: pointer;
}

.chat-retry-btn {
  border-color: rgba(255, 0, 85, 0.55);
  background: rgba(255, 0, 85, 0.12);
  color: var(--neon-magenta, #ff0055);
}

.chat-send-btn:hover:not(:disabled),
.chat-retry-btn:hover:not(:disabled) {
  background: rgba(0, 243, 255, 0.2);
}

.chat-send-btn:disabled {
  cursor: wait;
  opacity: 0.55;
}

.chat-send-btn[hidden],
.chat-retry-btn[hidden] {
  display: none;
}

.chat-composer-state {
  flex: 1 1 100%;
  margin: 0;
  min-height: 0.9rem;
  font-size: 0.68rem;
  color: var(--text-muted, #a8b2c1);
}

.chat-empty-state {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted, #a8b2c1);
}

.chat-empty-state[hidden] {
  display: none;
}

/* Report modal: bounded closed reason set + bounded detail, focus-managed. */
.chat-modal {
  position: fixed;
  inset: 0;
  z-index: 2200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 6, 12, 0.8);
  backdrop-filter: blur(6px);
}

.chat-modal[hidden] {
  display: none;
}

.chat-modal-card {
  width: min(24rem, calc(100vw - 2rem));
  max-height: 90vh;
  overflow-y: auto;
  padding: 1rem;
  border: 1px solid rgba(0, 243, 255, 0.5);
  border-radius: 10px;
  background: rgba(4, 6, 12, 0.98);
  box-shadow: 0 0 24px rgba(0, 243, 255, 0.2);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.chat-modal-card h3 {
  margin: 0;
  color: var(--neon-cyan, #00f3ff);
  font-family: var(--font-heading, sans-serif);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.chat-report-target {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted, #a8b2c1);
}

.chat-report-reason,
.chat-report-detail {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 0.6rem;
}

.chat-report-detail {
  min-height: 5rem;
  resize: vertical;
}

.chat-modal-error {
  margin: 0;
  font: 600 0.7rem var(--font-code, monospace);
  color: var(--neon-magenta, #ff0055);
}

.chat-modal-error[hidden] {
  display: none;
}

.chat-modal-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.chat-modal-actions button {
  min-height: 2.25rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(0, 243, 255, 0.45);
  border-radius: 6px;
  background: rgba(0, 243, 255, 0.1);
  color: inherit;
  font: 700 0.72rem var(--font-code, monospace);
  cursor: pointer;
}

.chat-modal-actions button:hover:not(:disabled) {
  background: rgba(0, 243, 255, 0.18);
}

@media (max-width: 640px) {
  .chat-preview-panel {
    top: auto;
    right: 0.5rem;
    bottom: 0.5rem;
    left: 0.5rem;
    width: auto;
    max-height: calc(100vh - 3rem);
  }

  .chat-member-bar {
    gap: 0.25rem;
  }

  .chat-add-member input {
    flex: 1 1 6rem;
    width: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-preview-panel *,
  .chat-modal * {
    scroll-behavior: auto;
  }
}