/* ═══════════════════════════════════════════
   HQ Chat View Styles
   Two-pane: agent directory left, conversation right.
   Depends on tokens.css.
   ═══════════════════════════════════════════ */

/* ── Chat view wrapper ─────────────────────── */
.chat-view {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* ── Agent directory (left pane) ───────────── */
.chat-directory {
  width: 280px;
  background: var(--color-panel);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  z-index: 10;
}

.chat-directory__search {
  padding: 12px 12px 8px;
  position: sticky;
  top: 0;
  background: var(--color-panel);
  z-index: 2;
  border-bottom: 1px solid var(--color-border);
}

.chat-directory__search-input {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 8px 10px;
  color: var(--color-text);
  font-size: var(--text-base);
  outline: none;
  font-family: var(--font-body);
  transition: border-color var(--transition-base);
  min-height: 38px;
}

.chat-directory__search-input:focus {
  border-color: var(--color-amber-glow);
}

/* ── Agent list section ────────────────────── */
.agent-section {
  margin-bottom: 4px;
}

.agent-section__header {
  padding: 10px 14px 4px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-amber);
  display: flex;
  align-items: center;
  gap: 6px;
}

.agent-section__count {
  color: var(--color-muted);
  font-family: var(--font-mono);
}

/* ── Agent list item ───────────────────────── */
.agent-item {
  padding: 7px 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  border-left: 2px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  min-height: 44px;
}

.agent-item:hover {
  background: var(--color-panel2);
}

.agent-item.active {
  background: var(--color-panel2);
  border-left-color: var(--color-amber);
}

.agent-item__info {
  flex: 1;
  overflow: hidden;
}

.agent-item__name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.agent-item__role {
  font-size: var(--text-sm);
  color: var(--color-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Conversation pane (right) ─────────────── */
.chat-conversation {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* ── Conversation header ───────────────────── */
.chat-conv-header {
  padding: 14px var(--space-5);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-panel);
  flex-shrink: 0;
}

.chat-conv-header__info {
  flex: 1;
  min-width: 0;
}

.chat-conv-header__name {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.chat-conv-header__meta {
  font-size: 11px;
  color: var(--color-dim);
}

.chat-conv-header__online {
  color: var(--color-green);
  margin-left: var(--space-2);
}

/*
 * Rule 18 header pill — session-level tagger + aggregated count badges.
 * Counts = sessionLevel + Σ(perMessage). Clicking the pill tags the session
 * itself (messageId=null). Colors mirror .message-tag-badge--r12/--r16 so the
 * header and per-message badges read as the same visual vocabulary.
 */
.chat-conv-header__tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: var(--space-2);
  padding: 2px 6px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: inherit;
  font: inherit;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.chat-conv-header__tag-pill:hover,
.chat-conv-header__tag-pill:focus-visible {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
  outline: none;
}

/*
 * Zero-state — pill shown on fresh conversations with no tags yet
 * (Q-FL-2c-1 resolution, 2026-04-20). The goal is "tap to add" not
 * "zero violations": the label must be discoverable but must not
 * compete visually with the conversation name or with pills that have
 * actual R12/R16 counts. Dim text + dashed border hint communicates
 * "affordance, not state." Hover/focus-visible raise it to full
 * prominence so the click target is obvious on mouse-in.
 */
.chat-conv-header__tag-pill--empty {
  opacity: 0.6;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  padding: 1px 8px;
}

.chat-conv-header__tag-pill--empty .chat-conv-header__tag-pill-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-dim, rgba(255, 255, 255, 0.55));
  line-height: 1.4;
}

.chat-conv-header__tag-pill--empty:hover,
.chat-conv-header__tag-pill--empty:focus-visible {
  opacity: 1;
  border-color: rgba(212, 165, 116, 0.45);
}

.chat-conv-header__tag-pill--empty:hover .chat-conv-header__tag-pill-label,
.chat-conv-header__tag-pill--empty:focus-visible .chat-conv-header__tag-pill-label {
  color: var(--color-amber);
}

.chat-conv-header__tag {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid transparent;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.chat-conv-header__tag--r12 {
  background: rgba(212, 165, 116, 0.12);
  border-color: rgba(212, 165, 116, 0.45);
  color: var(--color-amber);
}

.chat-conv-header__tag--r16 {
  background: rgba(125, 200, 210, 0.12);
  border-color: rgba(125, 200, 210, 0.45);
  color: var(--color-teal, #7dc8d2);
}

.chat-conv-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* ── Scope selector dropdown ───────────────── */
.scope-select {
  position: relative;
}

.scope-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-dim);
  padding: 5px 10px;
  border-radius: var(--radius-md);
  font-size: 11px;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 32px;
}

.scope-btn:hover {
  border-color: var(--color-muted);
  color: var(--color-text);
}

.scope-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--color-panel2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-width: 180px;
  z-index: 50;
  overflow: hidden;
  display: none;
}

.scope-dropdown.open {
  display: block;
  animation: fade-in 0.15s ease;
}

.scope-dropdown__item {
  padding: 9px 14px;
  font-size: var(--text-base);
  color: var(--color-dim);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.scope-dropdown__item:hover {
  background: var(--color-panel);
  color: var(--color-text);
}

.scope-dropdown__item.active {
  color: var(--color-amber);
}

.scope-dropdown__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── Message area ──────────────────────────── */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── Individual message ────────────────────── */
.message-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  animation: fade-in 0.2s ease;
}

.message-row--user {
  flex-direction: row-reverse;
}

.message-row--system {
  justify-content: center;
}

.message-content {
  max-width: 70%;
  display: flex;
  flex-direction: column;
}

.message-content--user {
  align-items: flex-end;
}

.message-meta {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 3px;
}

.message-meta--user {
  justify-content: flex-end;
}

.message-meta__name {
  font-size: 11px;
  font-weight: 700;
}

.message-meta__time {
  font-size: var(--text-sm);
  color: var(--color-dim);
  font-family: var(--font-mono);
}

.message-bubble {
  padding: 10px 14px;
  border-radius: var(--radius-xl);
  font-size: var(--text-md);
  line-height: 1.55;
}

.message-bubble--agent {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.message-bubble--user {
  background: var(--color-amber-dim);
  border: 1px solid var(--color-amber-glow);
  color: var(--color-text);
}

.message-bubble--system {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-dim);
  font-style: italic;
  font-size: 11px;
  text-align: center;
  padding: 8px 12px;
  border-radius: var(--radius-md);
}

/* ── Markdown rendering inside bubbles ─────── */
.message-bubble p  { margin-bottom: 8px; }
.message-bubble p:last-child { margin-bottom: 0; }
.message-bubble ul, .message-bubble ol {
  margin: 6px 0 8px 20px;
}
.message-bubble li { margin-bottom: 4px; }
.message-bubble code {
  background: var(--color-bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.message-bubble pre {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  overflow-x: auto;
  margin: 8px 0;
}
.message-bubble pre code {
  background: none;
  padding: 0;
}
.message-bubble strong { color: var(--color-amber); }
.message-bubble a {
  color: var(--color-blue);
  text-decoration: underline;
}

/* ── Input area ────────────────────────────── */
.chat-input-area {
  padding: 14px var(--space-5);
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
  flex-shrink: 0;
}

.chat-input-row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
}

.chat-textarea {
  flex: 1;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 10px 12px;
  font-size: var(--text-md);
  outline: none;
  font-family: var(--font-body);
  resize: none;
  min-height: 44px;
  max-height: 200px;
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base);
  overflow-y: auto;
  line-height: 1.5;
}

.chat-textarea:focus {
  border-color: var(--color-amber-glow);
}

.chat-send-btn {
  background: var(--color-amber);
  color: var(--color-bg);
  border: none;
  padding: 10px 18px;
  border-radius: var(--radius-lg);
  font-weight: 700;
  font-size: var(--text-base);
  cursor: pointer;
  font-family: var(--font-body);
  transition: opacity var(--transition-fast);
  white-space: nowrap;
  min-height: 44px;
  flex-shrink: 0;
}

.chat-send-btn:hover  { opacity: 0.9; }
.chat-send-btn:active { opacity: 0.8; }
.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chat-input-hint {
  font-size: var(--text-sm);
  color: var(--color-dim);
  margin-top: 6px;
  display: flex;
  gap: 12px;
}

/* ── Mobile: directory becomes drawer ──────── */
@media (max-width: 768px) {
  .chat-directory {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    /* Respect iOS dynamic viewport (address-bar collapse). Falls back
       to 100vh if dvh isn't supported. */
    height: 100dvh;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: 101;
    width: 300px;
    max-width: 85vw;
    padding-left: env(safe-area-inset-left);
  }

  .chat-directory.open {
    transform: translateX(0);
  }

  .chat-conv-header {
    padding: 12px var(--space-4);
  }

  .chat-messages {
    padding: var(--space-4);
  }

  .message-content {
    max-width: 85%;
  }

  .chat-input-hint {
    display: none;
  }

  /* iOS zooms the page when a textarea with font-size < 16px gets focus.
     Pin the chat textarea to 16px on phone to suppress that zoom. */
  .chat-textarea {
    font-size: 16px;
  }

  /* Safe-area-aware padding so the chat input bar sits above the
     iOS home indicator instead of under it. */
  .chat-input-area {
    padding-bottom: max(14px, env(safe-area-inset-bottom));
    padding-left: max(var(--space-5), env(safe-area-inset-left));
    padding-right: max(var(--space-5), env(safe-area-inset-right));
  }
}

@media (max-width: 480px) {
  .chat-input-area {
    /* Override the 768px rule — tighter top padding but keep the
       safe-area-aware bottom padding. */
    padding: 10px var(--space-3);
    padding-bottom: max(10px, env(safe-area-inset-bottom));
    padding-left: max(var(--space-3), env(safe-area-inset-left));
    padding-right: max(var(--space-3), env(safe-area-inset-right));
  }

  .chat-messages {
    padding: var(--space-3);
  }

  /* Full-width drawer on very small screens — leaves just enough
     edge peek to signal "swipe/tap to close". */
  .chat-directory {
    width: 100%;
    max-width: 92vw;
  }

  /* Shrink the agent-item avatars slightly on phone for better density. */
  .agent-item {
    padding: 8px 12px;
  }

  /* Tighter conversation header to save vertical space. */
  .chat-conv-header {
    padding: 10px var(--space-3);
    gap: 8px;
  }

  .chat-conv-header__actions {
    gap: 4px;
  }

  /* Scope dropdown: align to right edge so it doesn't clip off-screen. */
  .scope-dropdown {
    min-width: 160px;
    right: 0;
    left: auto;
  }
}

/* ── Rule 18.A §1 — Message tag affordances ───────────────────────
   Per-message ⋯ button, R12/R16 badges, dropdown menu, modal. */

.message-tag-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-dim);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  line-height: 1;
  font-size: 12px;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast),
              background var(--transition-fast),
              border-color var(--transition-fast),
              color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.message-row:hover .message-tag-btn,
.message-tag-btn:focus,
.message-tag-btn[aria-expanded="true"] {
  opacity: 1;
}

.message-tag-btn:hover,
.message-tag-btn[aria-expanded="true"] {
  background: var(--color-panel2);
  border-color: var(--color-border);
  color: var(--color-text);
}

/* Touch devices: no hover — show the button by default, dimmed. */
@media (hover: none) {
  .message-tag-btn { opacity: 0.55; }
}

.message-tag-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  letter-spacing: 0.3px;
  border: 1px solid transparent;
  line-height: 1.4;
}

/* R12 = unexamined-default (warm amber pill). */
.message-tag-badge--r12 {
  background: rgba(212, 165, 116, 0.12);
  border-color: rgba(212, 165, 116, 0.45);
  color: var(--color-amber);
}

/* R16 = challenge-raised (cool teal/blue pill). */
.message-tag-badge--r16 {
  background: rgba(125, 200, 210, 0.12);
  border-color: rgba(125, 200, 210, 0.45);
  color: var(--color-teal, #7dc8d2);
}

/* ── Tag dropdown menu (opened by ⋯ click) ──────────────────────── */
.tag-menu {
  position: fixed;
  background: var(--color-panel2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-width: 180px;
  z-index: 200;
  padding: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  animation: fade-in 0.12s ease;
}

.tag-menu__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  width: 100%;
  background: transparent;
  border: 0;
  border-radius: var(--radius-md, 6px);
  padding: 8px 12px;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  transition: background var(--transition-fast);
}

.tag-menu__item:hover,
.tag-menu__item:focus-visible {
  background: var(--color-panel);
  outline: none;
}

.tag-menu__label {
  font-size: var(--text-base);
  font-weight: 600;
}

.tag-menu__hint {
  font-size: var(--text-sm);
  color: var(--color-dim);
}

/* ── Tag modal ──────────────────────────────────────────────────── */
.tag-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fade-in 0.15s ease;
}

.tag-modal {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tag-modal__title {
  font-family: var(--font-heading, "Playfair Display", serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

.tag-modal__subtitle {
  font-size: var(--text-sm);
  color: var(--color-dim);
  margin-bottom: 4px;
}

.tag-modal__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-dim);
  display: block;
}

.tag-modal__optional {
  font-weight: 400;
  color: var(--color-muted, var(--color-dim));
}

.tag-modal__textarea {
  width: 100%;
  background: var(--color-panel2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md, 6px);
  color: var(--color-text);
  font-family: inherit;
  font-size: var(--text-base);
  padding: 10px;
  resize: vertical;
  min-height: 80px;
}

.tag-modal__textarea:focus {
  outline: none;
  border-color: var(--color-amber);
}

.tag-modal__counter {
  font-size: 11px;
  color: var(--color-dim);
  font-family: var(--font-mono);
  text-align: right;
}

.tag-modal__error {
  font-size: var(--text-sm);
  color: var(--color-red, #c86464);
  background: rgba(200, 100, 100, 0.08);
  border: 1px solid rgba(200, 100, 100, 0.3);
  border-radius: var(--radius-md, 6px);
  padding: 8px 10px;
}

.tag-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

.tag-modal__cancel,
.tag-modal__submit {
  font-family: inherit;
  font-size: var(--text-base);
  padding: 8px 16px;
  border-radius: var(--radius-md, 6px);
  cursor: pointer;
  border: 1px solid var(--color-border);
  transition: background var(--transition-fast),
              border-color var(--transition-fast),
              color var(--transition-fast);
  min-height: 36px;
}

.tag-modal__cancel {
  background: transparent;
  color: var(--color-dim);
}

.tag-modal__cancel:hover {
  background: var(--color-panel2);
  color: var(--color-text);
}

.tag-modal__submit {
  background: var(--color-amber);
  color: #1a1a1a;
  border-color: var(--color-amber);
  font-weight: 700;
}

.tag-modal__submit:hover:not(:disabled) {
  filter: brightness(1.08);
}

.tag-modal__submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Mobile: pad the modal so it never touches the edge. */
@media (max-width: 600px) {
  .tag-modal { padding: 16px; }
  .tag-modal__title { font-size: 18px; }
  .message-tag-btn { opacity: 0.6; }
}