/* Mirentia chat widget — vanilla, scoped under .mc- so the host page's
   CSS never bleeds in and ours never bleeds out. Dark-mode aware via
   prefers-color-scheme. No external fonts or icons.

   Total size budget: ~5KB minified. If you find yourself adding more,
   split into widget.css and ship a build step. */

:root {
  --mc-bg: #ffffff;
  --mc-fg: #1a1a1a;
  --mc-muted: #6b6b6b;
  --mc-bubble-user: #2563eb;
  --mc-bubble-user-fg: #ffffff;
  --mc-bubble-bot: #f4f4f5;
  --mc-bubble-bot-fg: #1a1a1a;
  --mc-fab: #2563eb;
  --mc-fab-fg: #ffffff;
  --mc-border: #e4e4e7;
  --mc-radius: 14px;
  --mc-shadow: 0 8px 24px rgba(0,0,0,0.12);
  --mc-z: 2147483000;
  --mc-fab-size: 56px;
  --mc-panel-w: 380px;
  --mc-panel-h: 520px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --mc-bg: #1a1a1a;
    --mc-fg: #f4f4f5;
    --mc-muted: #a1a1aa;
    --mc-bubble-user: #3b82f6;
    --mc-bubble-bot: #2a2a2a;
    --mc-bubble-bot-fg: #f4f4f5;
    --mc-fab: #3b82f6;
    --mc-border: #2a2a2a;
    --mc-shadow: 0 8px 24px rgba(0,0,0,0.4);
  }
}

.mc-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: var(--mc-fab-size);
  height: var(--mc-fab-size);
  border-radius: 50%;
  background: var(--mc-fab);
  color: var(--mc-fab-fg);
  border: none;
  cursor: pointer;
  box-shadow: var(--mc-shadow);
  z-index: var(--mc-z);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: transform 0.15s ease;
}

.mc-fab:hover { transform: scale(1.05); }
.mc-fab.mc-spin svg { animation: bc-spin 1s linear infinite; }

@keyframes bc-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.mc-panel {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: var(--mc-panel-w);
  height: var(--mc-panel-h);
  max-height: calc(100vh - 120px);
  background: var(--mc-bg);
  color: var(--mc-fg);
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius);
  box-shadow: var(--mc-shadow);
  z-index: var(--mc-z);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

.mc-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--mc-border);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mc-header-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
}

.mc-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mc-bubble {
  padding: 8px 12px;
  border-radius: 12px;
  max-width: 80%;
  word-wrap: break-word;
  white-space: pre-wrap;
}

.mc-bubble-user {
  background: var(--mc-bubble-user);
  color: var(--mc-bubble-user-fg);
  align-self: flex-end;
}

.mc-bubble-bot {
  background: var(--mc-bubble-bot);
  color: var(--mc-bubble-bot-fg);
  align-self: flex-start;
}

.mc-typing {
  font-size: 12px;
  color: var(--mc-muted);
  padding: 4px 12px;
  display: flex;
  gap: 4px;
  align-items: center;
}

.mc-typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mc-muted);
  animation: bc-bounce 1.2s infinite ease-in-out;
}

.mc-typing-dot:nth-child(2) { animation-delay: 0.15s; }
.mc-typing-dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes bc-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.mc-input {
  border-top: 1px solid var(--mc-border);
  padding: 8px;
  display: flex;
  gap: 6px;
}

.mc-input input {
  flex: 1;
  border: 1px solid var(--mc-border);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--mc-bg);
  color: var(--mc-fg);
  font: inherit;
  outline: none;
}

.mc-input input:focus { border-color: var(--mc-fab); }

.mc-input button {
  background: var(--mc-fab);
  color: var(--mc-fab-fg);
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}

.mc-input button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.mc-privacy {
  text-align: center;
  font-size: 11px;
  color: var(--mc-muted);
  padding: 4px 8px 8px;
  border-top: 1px solid var(--mc-border);
}

@media (max-width: 480px) {
  .mc-panel {
    right: 12px;
    left: 12px;
    width: auto;
    bottom: 88px;
  }
}