/* === MCB Widget CSS === */
:root {
  --mcb-primary: #005f8e;
  --mcb-secondary: #ffffff;
  --mcb-accent: #00b4d8;
  --mcb-radius: 18px;
  --mcb-shadow: 0 8px 40px rgba(0,0,0,0.18);
  --mcb-font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --mcb-bot-bg: #f0f4f8;
  --mcb-user-bg: var(--mcb-primary);
  --mcb-text: #1a1a2e;
  --mcb-muted: #6b7280;
  --mcb-border: #e5e7eb;
  --mcb-w: 380px;
  --mcb-h: 560px;
}

/* Root */
.mcb-widget {
  position: fixed;
  bottom: 24px;
  z-index: 99999;
  font-family: var(--mcb-font);
}
.mcb-right { right: 24px; }
.mcb-left  { left: 24px; }

/* Toggle Button */
.mcb-toggle-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--mcb-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,95,142,0.45);
  transition: transform 0.2s cubic-bezier(.34,1.56,.64,1), box-shadow 0.2s;
  position: relative;
  outline: none;
}
.mcb-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(0,95,142,0.55);
}
.mcb-toggle-btn svg {
  width: 26px;
  height: 26px;
  color: #fff;
  transition: opacity 0.2s;
}
.mcb-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ef4444;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
  animation: mcb-pulse 1.5s infinite;
}
@keyframes mcb-pulse {
  0%,100% { transform: scale(1); }
  50%      { transform: scale(1.2); }
}

/* Chat Window */
.mcb-window {
  position: absolute;
  bottom: 76px;
  width: var(--mcb-w);
  height: var(--mcb-h);
  background: #fff;
  border-radius: var(--mcb-radius);
  box-shadow: var(--mcb-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: mcb-slideup 0.3s cubic-bezier(.34,1.56,.64,1);
  border: 1px solid rgba(0,0,0,0.06);
}
.mcb-right .mcb-window { right: 0; }
.mcb-left  .mcb-window { left: 0; }

@keyframes mcb-slideup {
  from { opacity: 0; transform: translateY(24px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Header */
.mcb-header {
  background: var(--mcb-primary);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.mcb-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mcb-avatar-wrap {
  position: relative;
  width: 42px;
  height: 42px;
}
.mcb-avatar-img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.4);
}
.mcb-avatar-default {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(255,255,255,0.4);
}
.mcb-avatar-default svg {
  width: 26px;
  height: 26px;
  fill: rgba(255,255,255,0.9);
}
.mcb-status-dot {
  position: absolute;
  bottom: 1px;
  right: 1px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #22c55e;
  border: 2px solid var(--mcb-primary);
}
.mcb-header-name {
  color: #fff;
  font-weight: 700;
  font-size: 15px;
}
.mcb-header-status {
  color: rgba(255,255,255,0.75);
  font-size: 12px;
  margin-top: 2px;
}
.mcb-close-btn {
  background: rgba(255,255,255,0.15);
  border: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  outline: none;
}
.mcb-close-btn:hover { background: rgba(255,255,255,0.28); }
.mcb-close-btn svg { width: 16px; height: 16px; stroke: #fff; }

/* Messages */
.mcb-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #f8fafc;
  scroll-behavior: smooth;
}
.mcb-messages::-webkit-scrollbar { width: 4px; }
.mcb-messages::-webkit-scrollbar-track { background: transparent; }
.mcb-messages::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }

/* Message Bubbles */
.mcb-msg {
  display: flex;
  flex-direction: column;
  max-width: 88%;
  animation: mcb-fadein 0.25s ease;
}
@keyframes mcb-fadein {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.mcb-msg.mcb-bot { align-self: flex-start; }
.mcb-msg.mcb-user { align-self: flex-end; }

.mcb-bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  word-break: break-word;
}
.mcb-bot .mcb-bubble {
  background: #fff;
  color: var(--mcb-text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--mcb-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.mcb-user .mcb-bubble {
  background: var(--mcb-primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.mcb-timestamp {
  font-size: 11px;
  color: var(--mcb-muted);
  margin-top: 4px;
  padding: 0 4px;
}
.mcb-bot .mcb-timestamp  { text-align: left; }
.mcb-user .mcb-timestamp { text-align: right; }

/* Buttons row */
.mcb-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  max-width: 100%;
}
.mcb-btn {
  background: #fff;
  color: var(--mcb-primary);
  border: 1.5px solid var(--mcb-primary);
  border-radius: 20px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, transform 0.1s;
  text-align: left;
  line-height: 1.3;
  outline: none;
  font-family: var(--mcb-font);
}
.mcb-btn:hover {
  background: var(--mcb-primary);
  color: #fff;
  transform: translateY(-1px);
}
.mcb-btn:active { transform: translateY(0); }
.mcb-btn:disabled {
  opacity: 0.5;
  cursor: default;
  pointer-events: none;
}
.mcb-btn.mcb-btn-accent {
  background: var(--mcb-accent);
  border-color: var(--mcb-accent);
  color: #fff;
}
.mcb-btn.mcb-btn-accent:hover { opacity: 0.88; }
.mcb-btn.mcb-btn-danger {
  border-color: #ef4444;
  color: #ef4444;
}
.mcb-btn.mcb-btn-danger:hover { background: #ef4444; color: #fff; }

/* Typing indicator */
.mcb-typing .mcb-bubble {
  background: #fff;
  border: 1px solid var(--mcb-border);
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 14px 16px;
}
.mcb-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--mcb-accent);
  animation: mcb-bounce 1.2s infinite;
}
.mcb-dot:nth-child(2) { animation-delay: 0.2s; }
.mcb-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes mcb-bounce {
  0%,80%,100% { transform: scale(0.8); opacity: 0.5; }
  40%          { transform: scale(1.2); opacity: 1; }
}

/* Input form for email */
.mcb-email-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}
.mcb-email-form input,
.mcb-email-form textarea {
  border: 1.5px solid var(--mcb-border);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 13px;
  outline: none;
  font-family: var(--mcb-font);
  transition: border-color 0.2s;
  color: var(--mcb-text);
}
.mcb-email-form input:focus,
.mcb-email-form textarea:focus { border-color: var(--mcb-primary); }
.mcb-email-form textarea { resize: none; height: 70px; }
.mcb-email-form button {
  background: var(--mcb-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 9px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  font-family: var(--mcb-font);
}
.mcb-email-form button:hover { opacity: 0.88; }

/* Footer / Input */
.mcb-footer {
  border-top: 1px solid var(--mcb-border);
  background: #fff;
  padding: 10px 14px 12px;
  flex-shrink: 0;
}
.mcb-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.mcb-text-input {
  flex: 1;
  border: 1.5px solid var(--mcb-border);
  border-radius: 24px;
  padding: 9px 16px;
  font-size: 14px;
  outline: none;
  font-family: var(--mcb-font);
  transition: border-color 0.2s;
  color: var(--mcb-text);
  background: #f8fafc;
}
.mcb-text-input:focus { border-color: var(--mcb-primary); background: #fff; }
.mcb-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--mcb-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity 0.2s, transform 0.15s;
  outline: none;
}
.mcb-send-btn:hover { opacity: 0.88; transform: scale(1.05); }
.mcb-send-btn svg { width: 18px; height: 18px; fill: #fff; }
.mcb-powered {
  text-align: center;
  font-size: 11px;
  color: var(--mcb-muted);
  margin-top: 6px;
}

/* Responsive */
@media (max-width: 480px) {
  :root { --mcb-w: calc(100vw - 20px); --mcb-h: 75vh; }
  .mcb-right .mcb-window { right: 0; }
  .mcb-left  .mcb-window { left: 0; }
  .mcb-widget { bottom: 16px; }
  .mcb-right { right: 16px; }
  .mcb-left  { left: 16px; }
}