:root {
  --green: #25D366;
  --green-dark: #1ebe59;
  --green-glow: rgba(37, 211, 102, 0.25);
  --bg: #0e1117;
  --surface: #161b22;
  --surface2: #1c2330;
  --border: rgba(255,255,255,0.07);
  --text: #e6edf3;
  --text-muted: #7d8590;
  --radius: 14px;
  --font: 'DM Sans', sans-serif;
}

.demo-bg {
  font-family: var(--font);
  color: #999;
  font-size: 14px;
  text-align: center;
}

/* ── WhatsApp Floating Wrapper ── */
/* handles fixed positioning for both label and button */
.whatsapp-wrapper {
  position: fixed;
  bottom: 30px;
  right: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 10000;
}

/* ── "Chat with Us" label above the button ── */
.whatsapp-label {
  background-color: #25D366;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  cursor: default;
  display: block;
}

/* ── Toggle Button ── */
/* position: static so .whatsapp-wrapper controls placement */
#open-chat {
  position: static;
  bottom: unset;
  right: unset;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px var(--green-glow), 0 2px 8px rgba(0,0,0,0.3);
  transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.2s;
  z-index: 999;
}
#open-chat:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,0.4), 0 2px 8px rgba(0,0,0,0.3);
}
#open-chat svg { transition: transform 0.3s ease; }
#open-chat.open svg { transform: rotate(90deg); }

/* ── Pulse ring on toggle button ── */
#open-chat::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--green);
  opacity: 0;
  animation: pulse-ring 2.5s ease-out infinite;
}
@keyframes pulse-ring {
  0%   { transform: scale(0.9); opacity: 0.6; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ── Chat Box ── */
#chat-box {
  position: fixed;
  bottom: 110px;
  right: 24px;
  width: 340px;
  max-height: 520px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  z-index: 998;
  transform-origin: bottom right;
  transform: scale(0.85) translateY(10px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), opacity 0.25s ease;
}
#chat-box.visible {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}

/* ── Chat Header ── */
#chat-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), #128c7e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  position: relative;
}
.avatar::after {
  content: '';
  position: absolute;
  bottom: 1px;
  right: 1px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  border: 2px solid var(--surface);
}
.header-info { flex: 1; }
.header-name { font-size: 14px; font-weight: 600; color: var(--text); }
.header-status { font-size: 11px; color: var(--green); margin-top: 1px; }
.header-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  display: flex;
}
.header-close:hover { color: var(--text); background: var(--border); }

/* ── Messages Area ── */
#chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.message {
  max-width: 82%;
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.5;
  animation: msg-in 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes msg-in {
  from { transform: translateY(8px) scale(0.95); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}
.message.bot {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
}
.message.user {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
  box-shadow: 0 2px 10px var(--green-glow);
}

/* ── Typing Indicator ── */
.typing {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 13px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  border-bottom-left-radius: 4px;
  align-self: flex-start;
  animation: msg-in 0.25s ease;
}
.dot {
  width: 7px;
  height: 7px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: bounce 1.2s ease-in-out infinite;
}
.dot:nth-child(2) { animation-delay: 0.18s; }
.dot:nth-child(3) { animation-delay: 0.36s; }
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
  40%            { transform: scale(1.2); opacity: 1; }
}

/* ── Quick Reply Buttons ── */
.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
  animation: msg-in 0.3s ease 0.1s both;
}
.quick-btn {
  background: none;
  border: 1px solid var(--green);
  color: var(--green);
  padding: 5px 11px;
  border-radius: 20px;
  font-size: 12px;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.quick-btn:hover {
  background: var(--green);
  color: #fff;
}

/* ── WhatsApp CTA Link ── */
.wa-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  padding: 7px 13px;
  background: var(--green);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 12.5px;
  font-weight: 500;
  align-self: flex-start;
  transition: opacity 0.15s, transform 0.15s;
  animation: msg-in 0.25s ease;
}
.wa-link:hover { opacity: 0.9; transform: translateY(-1px); }

/* ── Chat Input Footer ── */
#chat-footer {
  border-top: 1px solid var(--border);
  padding: 12px;
  background: var(--bg);
  display: flex;
  gap: 8px;
  align-items: center;
}
#userInput {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 13px;
  border-radius: 20px;
  font-family: var(--font);
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.2s;
}
#userInput::placeholder { color: var(--text-muted); }
#userInput:focus { border-color: rgba(37,211,102,0.4); }

/* ── Send Button ── */
#send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--green);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, opacity 0.15s;
  flex-shrink: 0;
}
#send-btn:hover { transform: scale(1.1); }
#send-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }