/* BlueMango Staff Chat Stylesheet */
:root {
  --navy-hover: #284b5d;
  --danger: #a33e32;
  --warning: #99611e;
  --line-strong: #c5c1b5;
  --accent-soft: #fff0e8;
  --success-soft: #e7f2ed;
}

header nav a.nav-link {
  color: #fff;
  text-decoration: none;
  padding: 10px 16px;
  font-size: 14px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  transition: background 0.15s ease-out;
}

header nav a.nav-link:hover {
  background: var(--navy-hover);
}

header nav a.nav-link.active {
  background: rgba(255, 255, 255, 0.18);
  font-weight: 600;
}

.chat-container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.chat-hero {
  margin-bottom: 8px;
}

.chat-hero h1 {
  margin: 8px 0 12px;
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -1.2px;
  line-height: 1.25;
}

.chat-hero p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

/* TalkTalk draft preview policy banner */
.draft-policy-banner {
  background: var(--accent-soft);
  border: 1px solid #e8c8b6;
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  line-height: 1.6;
  color: #733513;
}

.draft-policy-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 14px;
}

.draft-badge {
  display: inline-block;
  background: #f3b294;
  color: #4a1d08;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.draft-policy-banner p {
  margin: 0;
  font-size: 13.5px;
  color: #733513;
}

/* Starter suggestions */
.starter-box {
  background: var(--panel);
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.starter-box h2 {
  font-size: 17px;
  margin: 0 0 8px;
}

.starter-box p {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 18px;
}

.suggestions-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.suggestion-btn {
  word-break: keep-all;
  overflow-wrap: anywhere;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease-out;
}

.suggestion-btn:hover {
  background: var(--panel);
  border-color: var(--accent);
  color: var(--accent);
}

/* Message list */
.messages-thread {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 120px;
}

.message-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message-user {
  align-self: flex-end;
  max-width: 85%;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-right: 4px solid var(--accent);
  border-radius: 12px;
  padding: 16px 20px;
}

.message-user .message-sender {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.message-user .message-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.message-assistant {
  align-self: flex-start;
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}

.assistant-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.assistant-status {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

.status-answer {
  background: var(--success-soft);
  color: var(--green);
}

.status-clarify {
  background: var(--accent-soft);
  color: var(--warning);
}

.status-handoff {
  background: #eef2f5;
  color: var(--navy);
}

.status-refuse {
  background: #fdf0ee;
  color: var(--danger);
}

.assistant-body {
  margin: 18px 0;
}

.assistant-answer {
  font-size: 15.5px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: keep-all;
  overflow-wrap: anywhere;
  margin: 0;
  color: var(--ink);
}

/* Citations block */
.citations-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.citations-heading {
  font-size: 13px;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.citations-grid {
  display: grid;
  gap: 10px;
}

.citation-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.citation-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.citation-meta {
  font-size: 12px;
  color: var(--muted);
}

/* Metadata provenance */
.assistant-meta {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
}

.assistant-actions {
  display: flex;
  gap: 8px;
}

.copy-btn {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  min-height: 44px;
}

.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Loading / In-flight state */
.in-flight-card {
  background: var(--panel);
  border: 1px dashed var(--line-strong);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--line);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

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

/* Composer */
.composer-form {
  position: static;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  padding: 16px 20px;
  box-shadow: 0 4px 16px rgba(23, 36, 44, 0.06);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.composer-form:focus-within {
  border-color: var(--accent);
}

.composer-textarea {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  font: inherit;
  font-size: 15px;
  line-height: 1.6;
  resize: vertical;
  min-height: 72px;
  max-height: 220px;
  color: var(--ink);
}

.composer-textarea::placeholder {
  color: var(--muted);
}

.composer-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.composer-hints {
  font-size: 12px;
  color: var(--muted);
}

.send-btn {
  background: var(--navy);
  color: #fff;
  border: 1px solid var(--navy);
  border-radius: 8px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background 0.15s ease-out;
}

.send-btn:hover:not(:disabled) {
  background: var(--navy-hover);
}

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

/* Error / Retry Banner */
.error-banner {
  background: var(--accent-soft);
  border: 1px solid #e8c8b6;
  border-radius: 10px;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: #733513;
}

.error-banner .retry-btn {
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  flex-shrink: 0;
}

.error-banner .retry-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Mobile responsive constraints (375px and 320px) */
@media (max-width: 800px) {
  .chat-hero h1 {
    font-size: 28px;
  }
  .message-user {
    max-width: 92%;
  }
  .composer-form {
    padding: 14px 16px;
  }
}

@media (max-width: 480px) {
  header {
    padding: 16px 14px;
    flex-wrap: wrap;
    gap: 10px;
  }
  header nav {
    width: 100%;
    justify-content: space-between;
  }
  header nav a.nav-link {
    padding: 8px 10px;
    font-size: 12px;
  }
  main {
    padding: 20px 14px 40px;
  }
  .chat-hero h1 {
    font-size: 24px;
  }
  .draft-policy-banner {
    padding: 14px 16px;
    font-size: 13px;
  }
  .message-user {
    max-width: 100%;
    padding: 14px 16px;
  }
  .message-assistant {
    padding: 18px 16px;
  }
  .composer-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .send-btn {
    width: 100%;
  }
  .assistant-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .assistant-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  .assistant-actions {
    width: 100%;
  }
  .copy-btn {
    width: 100%;
    justify-content: center;
  }
}

/* 320px extreme narrow support */
@media (max-width: 340px) {
  header nav a.nav-link,
  header nav button {
    padding: 6px 8px;
    font-size: 11px;
  }
  .chat-container {
    gap: 16px;
  }
  .suggestion-btn {
    width: 100%;
    text-align: center;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.composer-hints, .chat-hero p {
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.assistant-meta summary, .citation-meta summary {
  cursor: pointer;
  min-height: 44px;
  align-content: center;
}
@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; }
}

.keep-phrase { white-space: nowrap; }