/* ═══════════════════════════════════════════════════
   Floating Bottom-Right Buttons
   WhatsApp · Phone · AI Chat
═══════════════════════════════════════════════════ */

/* ── Stack container ── */
.fb-stack {
  position: fixed;
  bottom: 110px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

/* ── Each circular button ── */
.fb-btn {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
  transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.22s ease;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.fb-btn:hover,
.fb-btn:focus-visible {
  transform: scale(1.13);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.32);
}

.fb-btn--active {
  transform: scale(1.13);
  box-shadow: 0 8px 28px rgba(142, 68, 173, 0.45);
}

/* ── Icon ── */
.fb-icon {
  font-size: 1.5rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Tooltip (appears to the left on hover) ── */
.fb-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: rgba(20, 20, 20, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  white-space: nowrap;
  padding: 5px 11px;
  border-radius: 8px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

/* Arrow on right side of tooltip */
.fb-tooltip::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: rgba(20, 20, 20, 0.82);
}

.fb-btn:hover .fb-tooltip,
.fb-btn:focus-visible .fb-tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ── Scroll Up / Down Toggle Button ── */
.fb-btn--scroll {
  background: #111111;
  width: 48px;
  height: 48px;
}

.fb-btn--scroll .fb-icon {
  font-size: 1.2rem;
}

.fb-btn--scroll:hover,
.fb-btn--scroll:focus-visible {
  background: #000000;
}

/* ── 24/7 badge on WhatsApp button ── */
.fb-badge-247 {
  position: absolute;
  bottom: -7px;
  left: 50%;
  transform: translateX(-50%);
  background: #111111;
  color: #ffdd00;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1;
  padding: 3px 6px;
  border-radius: 8px;
  border: 2px solid #fff;
  white-space: nowrap;
  pointer-events: none;
}

@media (max-width: 600px) {
  .fb-badge-247 {
    bottom: -6px;
    font-size: 0.52rem;
    padding: 2px 5px;
  }
}

/* ── WhatsApp pulse ring ── */
.fb-btn--pulse::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: transparent;
  box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.6);
  animation: fb-pulse 2.4s ease-out infinite;
}

@keyframes fb-pulse {
  0%   { box-shadow: 0 0 0 0   rgba(37, 211, 102, 0.6); }
  65%  { box-shadow: 0 0 0 13px rgba(37, 211, 102, 0);  }
  100% { box-shadow: 0 0 0 0   rgba(37, 211, 102, 0);   }
}

/* ═══════════════════════════════════════════════════
   AI Chat Panel
═══════════════════════════════════════════════════ */
.fb-chat-panel {
  position: fixed;
  bottom: 100px;
  right: 90px;
  z-index: 9998;
  width: 330px;
  max-height: 490px;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border-radius: 20px;
  box-shadow: 0 16px 56px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  animation: fb-panel-in 0.28s cubic-bezier(0.34, 1.3, 0.64, 1);
}

@keyframes fb-panel-in {
  from {
    opacity: 0;
    transform: scale(0.88) translateY(20px);
    transform-origin: bottom right;
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
    transform-origin: bottom right;
  }
}

/* ── Chat header ── */
.fb-chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #8e44ad, #5b2c6f);
  color: #fff;
  flex-shrink: 0;
}

.fb-chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.fb-chat-header-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fb-chat-title {
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1;
}

.fb-chat-status {
  font-size: 0.72rem;
  opacity: 0.85;
  display: flex;
  align-items: center;
  gap: 4px;
}

.fb-chat-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #b9f5c7;
  animation: fb-blink 2s ease-in-out infinite;
}

@keyframes fb-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.fb-chat-close {
  margin-left: auto;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  color: #fff;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.15s;
}
.fb-chat-close:hover { background: rgba(255, 255, 255, 0.28); }

/* ── Messages area ── */
.fb-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: var(--bg);
  scrollbar-width: thin;
  scrollbar-color: #d0cfe8 transparent;
}

/* ── Bubbles ── */
.fb-bubble {
  max-width: 83%;
  padding: 9px 13px;
  border-radius: 16px;
  font-size: 0.82rem;
  line-height: 1.55;
  word-break: break-word;
  animation: fb-bubble-in 0.2s ease;
}

@keyframes fb-bubble-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fb-bubble--bot {
  background: var(--bg-tint);
  color: var(--ink);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  box-shadow: 0 1px 6px rgba(0,0,0,0.07);
}

.fb-bubble--user {
  background: linear-gradient(135deg, #8e44ad, #5b2c6f);
  color: #fff;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

/* ── Typing dots ── */
.fb-typing {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
}

.fb-typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #bbb;
  animation: fb-dot 1.2s infinite ease-in-out;
}
.fb-typing span:nth-child(2) { animation-delay: 0.18s; }
.fb-typing span:nth-child(3) { animation-delay: 0.36s; }

@keyframes fb-dot {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.45; }
  40%            { transform: scale(1);   opacity: 1;    }
}

/* ── Input footer ── */
.fb-chat-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: var(--card);
  flex-shrink: 0;
}

.fb-chat-input {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: 22px;
  padding: 8px 14px;
  font-size: 0.82rem;
  outline: none;
  background: var(--bg-tint);
  color: var(--ink);
  transition: border-color 0.18s, background 0.18s;
}
.fb-chat-input:focus {
  border-color: #8e44ad;
  background: var(--bg);
}

.fb-chat-send {
  width: 37px;
  height: 37px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #8e44ad, #5b2c6f);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: transform 0.18s, box-shadow 0.18s;
}
.fb-chat-send:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 14px rgba(142, 68, 173, 0.45);
}

/* ── Mobile ── */
@media (max-width: 600px) {
  .fb-stack {
    bottom: 95px;
    right: 14px;
    gap: 10px;
  }

  .fb-btn {
    width: 50px;
    height: 50px;
  }

  .fb-btn--scroll {
    width: 44px;
    height: 44px;
  }

  .fb-icon {
    font-size: 1.3rem;
  }

  .fb-chat-panel {
    right: 10px;
    bottom: 90px;
    width: calc(100vw - 20px);
    max-width: 340px;
  }
}