/* =============================================================
   BONAVIOX · CLINICIAN-AI CHAT INTERFACE (shared)
   Used on home page (section.clinician.ex-clinician) and product
   page (section.pdp-clinician). The markup is identical across
   both — load `chat.css` + `chat.js` and you get the full module.
   ============================================================= */
/* =============================================================
   11 · CLINICIAN AI · CHAT INTERFACE
   ============================================================= */
.ex-chat {
  max-width: 880px;
  margin: var(--sp-7) auto 0;
  background:
    linear-gradient(180deg, rgba(15, 39, 68, 0.92), rgba(10, 28, 51, 0.95));
  border: 1px solid var(--hairline);
  border-radius: var(--r-4);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(200, 154, 132, 0.08) inset;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* HEADER */
.ex-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--hairline-soft);
  background: linear-gradient(180deg, rgba(200, 154, 132, 0.04), transparent);
}
.ex-chat-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.ex-chat-avatar {
  position: relative;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bv-rose-400), var(--bv-rose-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bv-navy-900);
  box-shadow: 0 6px 18px rgba(200, 154, 132, 0.35);
  flex-shrink: 0;
}
.ex-chat-avatar [data-lucide] { width: 18px !important; height: 18px !important; stroke-width: 1.5; }
.ex-chat-avatar-pulse {
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  opacity: 0;
  animation: ex-avatar-ping 3s ease-out infinite;
}
.ex-chat-avatar-pulse:nth-child(2) { animation-delay: 1.5s; }
@keyframes ex-avatar-ping {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.7); opacity: 0; }
}
.ex-chat-brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.ex-chat-brand-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 400;
  color: var(--fg-1);
  letter-spacing: -0.005em;
}
.ex-chat-brand-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-3);
  font-weight: 500;
}
.ex-chat-status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #5DCC8F;
  box-shadow: 0 0 0 3px rgba(93, 204, 143, 0.18);
  animation: ex-status-pulse-green 2.4s ease-in-out infinite;
}
@keyframes ex-status-pulse-green {
  0%, 100% { box-shadow: 0 0 0 3px rgba(93, 204, 143, 0.22); }
  50%      { box-shadow: 0 0 0 7px rgba(93, 204, 143, 0.06); }
}

.ex-chat-actions { display: flex; gap: 8px; }
.ex-chat-icon-btn {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--hairline-soft);
  color: var(--fg-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.ex-chat-icon-btn:hover:not(:disabled) {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(200, 154, 132, 0.06);
}
.ex-chat-icon-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ex-chat-icon-btn [data-lucide] { width: 14px !important; height: 14px !important; stroke-width: 1.5; }

/* THREAD */
.ex-chat-thread {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 28px 22px;
  min-height: 280px;
  max-height: 520px;
  overflow-y: auto;
  scroll-behavior: smooth;
  background:
    radial-gradient(50% 30% at 50% 0%, rgba(200, 154, 132, 0.04), transparent 70%);
}
.ex-chat-thread::-webkit-scrollbar { width: 6px; }
.ex-chat-thread::-webkit-scrollbar-thumb { background: var(--hairline); border-radius: 3px; }
.ex-chat-thread::-webkit-scrollbar-track { background: transparent; }

.ex-chat-msg {
  display: flex;
  gap: 12px;
  max-width: 90%;
  opacity: 0;
  transform: translateY(8px);
  animation: ex-msg-in 420ms var(--ease-out) forwards;
}
@keyframes ex-msg-in {
  to { opacity: 1; transform: translateY(0); }
}
.ex-chat-msg-avatar {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bv-rose-400), var(--bv-rose-600));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bv-navy-900);
  margin-top: 4px;
}
.ex-chat-msg-avatar [data-lucide] { width: 14px !important; height: 14px !important; stroke-width: 1.5; }
.ex-chat-msg-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.ex-chat-msg-author {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}
.ex-chat-msg-text {
  font-family: var(--font-sans);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--fg-1);
  margin: 0;
  padding: 14px 18px;
  background: rgba(200, 154, 132, 0.07);
  border: 1px solid var(--hairline-soft);
  border-radius: 4px 18px 18px 18px;
  text-wrap: pretty;
}
.ex-chat-msg-text em { font-style: italic; color: var(--accent); }
.ex-chat-msg-time {
  font-family: var(--font-sans);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-3);
}

/* USER message */
.ex-chat-msg--user {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.ex-chat-msg--user .ex-chat-msg-avatar {
  background: linear-gradient(135deg, var(--bv-navy-800), var(--bv-navy-700));
  border: 1px solid var(--hairline);
  color: var(--fg-1);
}
.ex-chat-msg--user .ex-chat-msg-body { align-items: flex-end; }
.ex-chat-msg--user .ex-chat-msg-author { color: var(--fg-2); }
.ex-chat-msg--user .ex-chat-msg-text {
  background: linear-gradient(135deg, var(--bv-rose-500), var(--bv-rose-600));
  color: var(--bv-navy-900);
  border-color: var(--bv-rose-500);
  border-radius: 18px 4px 18px 18px;
  font-weight: 500;
}
.ex-chat-msg--user .ex-chat-msg-text em { color: var(--bv-navy-1000); }

/* Typing indicator */
.ex-chat-msg--typing .ex-chat-msg-text {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 16px 20px;
  min-width: 64px;
}
.ex-chat-typing-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.4;
  animation: ex-typing-bob 1.2s ease-in-out infinite;
}
.ex-chat-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.ex-chat-typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes ex-typing-bob {
  0%, 100% { opacity: 0.3; transform: translateY(0); }
  50%      { opacity: 1; transform: translateY(-3px); }
}

/* SUGGESTIONS */
.ex-chat-suggestions {
  padding: 14px 22px 16px;
  border-top: 1px solid var(--hairline-soft);
  background: linear-gradient(180deg, transparent, rgba(200, 154, 132, 0.025));
  transition: opacity var(--dur-base) var(--ease-out), max-height var(--dur-slow) var(--ease-out), padding var(--dur-slow) var(--ease-out);
  max-height: 200px;
  overflow: hidden;
}
.ex-chat[data-engaged="true"] .ex-chat-suggestions {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  border-top-width: 0;
  pointer-events: none;
  visibility: hidden;
}
.ex-chat-suggestions-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 9.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--fg-3);
  margin-bottom: 10px;
}
.ex-chat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.ex-chat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(200, 154, 132, 0.06);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--fg-2);
  cursor: pointer;
  letter-spacing: 0.005em;
  transition: color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}
.ex-chat-chip [data-lucide] { width: 14px !important; height: 14px !important; stroke-width: 1.5; color: var(--accent); }
.ex-chat-chip sup { font-size: 0.5em; vertical-align: top; margin-left: 1px; }
.ex-chat-chip:hover {
  color: var(--fg-1);
  border-color: var(--accent);
  background: rgba(200, 154, 132, 0.14);
  transform: translateY(-1px);
}

/* INPUT */
.ex-chat-input {
  display: flex;
  align-items: stretch;
  gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid var(--hairline-soft);
  background: rgba(10, 28, 51, 0.55);
}
.ex-chat-input-field {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: rgba(244, 242, 238, 0.04);
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}
.ex-chat-input-field:focus-within {
  border-color: var(--accent);
  background: rgba(200, 154, 132, 0.08);
  box-shadow: 0 0 0 4px rgba(200, 154, 132, 0.12);
}
.ex-chat-input-icon {
  width: 16px !important; height: 16px !important;
  stroke-width: 1.5;
  color: var(--accent);
  flex-shrink: 0;
}
.ex-chat-input input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--fg-1);
  padding: 14px 0;
  letter-spacing: 0.005em;
}
.ex-chat-input input::placeholder { color: var(--fg-3); }
.ex-chat-input-counter {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-3);
  flex-shrink: 0;
  letter-spacing: 0.05em;
}
.ex-chat-send {
  width: 46px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--bv-rose-500), var(--bv-rose-600));
  border: 1px solid var(--bv-rose-500);
  color: var(--bv-navy-900);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(200, 154, 132, 0.35);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}
.ex-chat-send [data-lucide] { width: 18px !important; height: 18px !important; stroke-width: 2; }
.ex-chat-send:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(200, 154, 132, 0.5);
}
.ex-chat-send:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* DISCLAIMER */
.ex-chat-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 22px 16px;
  margin: 0;
  font-family: var(--font-sans);
  font-size: 11px;
  line-height: 1.55;
  color: var(--fg-3);
  border-top: 1px solid var(--hairline-soft);
  background: rgba(0, 0, 0, 0.18);
}
.ex-chat-disclaimer [data-lucide] {
  width: 13px !important; height: 13px !important;
  stroke-width: 1.5;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

@media (max-width: 767px) {
  .ex-chat-thread { padding: 22px 16px; }
  .ex-chat-header { padding: 14px 16px; }
  .ex-chat-suggestions { padding: 12px 16px 14px; }
  .ex-chat-input { padding: 12px 12px; }
  .ex-chat-msg { max-width: 100%; }
  .ex-chat-input-counter { display: none; }
}