/* =============================================================
   WP AI Sales Assistant — Chat Widget
   Responsive, theme-aware, premium floating chatbot
   ============================================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --wa-primary: #6366f1;
  --wa-primary-dark: #4f46e5;
  --wa-primary-light: rgba(99,102,241,.12);
  --wa-wa-green: #25d366;
  --wa-bg: #ffffff;
  --wa-surface: #f8fafc;
  --wa-border: #e2e8f0;
  --wa-text: #1e293b;
  --wa-muted: #64748b;
  --wa-bot-bubble: #f1f5f9;
  --wa-user-bubble: var(--wa-primary);
  --wa-user-text: #ffffff;
  --wa-radius: 20px;
  --wa-widget-w: 370px;
  --wa-widget-h: 560px;
  --wa-z: 999999;
}

/* Dark theme */
.wpaisa-widget--dark {
  --wa-bg: #1e1b2e;
  --wa-surface: #2d2940;
  --wa-border: #3d3857;
  --wa-text: #f1f5f9;
  --wa-muted: #94a3b8;
  --wa-bot-bubble: #2d2940;
}

/* Auto theme */
@media (prefers-color-scheme: dark) {
  .wpaisa-widget--auto {
    --wa-bg: #1e1b2e;
    --wa-surface: #2d2940;
    --wa-border: #3d3857;
    --wa-text: #f1f5f9;
    --wa-muted: #94a3b8;
    --wa-bot-bubble: #2d2940;
  }
}

/* ============================================================= */
/* Launcher Button                                               */
/* ============================================================= */
#wpaisa-launcher {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--wa-z);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--wa-primary), var(--wa-primary-dark));
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99,102,241,.45), 0 2px 8px rgba(0,0,0,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s cubic-bezier(.34,1.56,.64,1), box-shadow .25s;
  animation: wpaisa-bounce 2.5s infinite;
}

#wpaisa-launcher.wpaisa-position-left { right: auto; left: 24px; }
#wpaisa-launcher:hover { transform: scale(1.1); box-shadow: 0 6px 25px rgba(99,102,241,.6); }
#wpaisa-launcher.open { animation: none; transform: rotate(45deg); }

#wpaisa-launcher svg { width: 28px; height: 28px; fill: #fff; transition: opacity .2s, transform .2s; }
#wpaisa-launcher .icon-chat { position: absolute; }
#wpaisa-launcher .icon-close { position: absolute; opacity: 0; transform: rotate(-45deg); }
#wpaisa-launcher.open .icon-chat { opacity: 0; }
#wpaisa-launcher.open .icon-close { opacity: 1; transform: rotate(0); }

/* Notification dot */
.wpaisa-launcher-dot {
  position: absolute;
  top: 2px; right: 2px;
  width: 14px; height: 14px;
  background: #ef4444;
  border-radius: 50%;
  border: 2px solid #fff;
  animation: wpaisa-pulse 1.5s infinite;
}

@keyframes wpaisa-bounce {
  0%, 80%, 100% { transform: scale(1); }
  40% { transform: scale(1.08); }
}
@keyframes wpaisa-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: .7; }
}

/* ============================================================= */
/* Widget Panel                                                  */
/* ============================================================= */
#wpaisa-widget {
  position: fixed;
  bottom: 96px;
  right: 24px;
  z-index: var(--wa-z);
  width: var(--wa-widget-w);
  max-height: var(--wa-widget-h);
  display: flex;
  flex-direction: column;
  background: var(--wa-bg);
  border-radius: var(--wa-radius);
  box-shadow: 0 20px 60px rgba(0,0,0,.15), 0 8px 20px rgba(0,0,0,.1);
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px) scale(.95);
  pointer-events: none;
  transition: opacity .3s cubic-bezier(.25,.46,.45,.94), transform .3s cubic-bezier(.34,1.2,.64,1);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  border: 1px solid var(--wa-border);
}

#wpaisa-widget.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

#wpaisa-widget.wpaisa-position-left { right: auto; left: 24px; }

/* ============================================================= */
/* Header                                                        */
/* ============================================================= */
.wpaisa-header-bar {
  background: linear-gradient(135deg, var(--wa-primary), var(--wa-primary-dark));
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  position: relative;
}

.wpaisa-header-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,.4);
}

.wpaisa-header-avatar img { width: 100%; height: 100%; object-fit: cover; }
.wpaisa-header-avatar-default { font-size: 22px; }

.wpaisa-header-info { flex: 1; }
.wpaisa-header-name { color: #fff; font-weight: 700; font-size: 15px; line-height: 1.2; }
.wpaisa-header-status { color: rgba(255,255,255,.8); font-size: 12px; display: flex; align-items: center; gap: 5px; margin-top: 2px; }
.wpaisa-status-dot { width: 7px; height: 7px; background: #4ade80; border-radius: 50%; animation: wpaisa-pulse 2s infinite; }

.wpaisa-header-actions { display: flex; gap: 6px; }
.wpaisa-header-btn {
  width: 32px; height: 32px;
  background: rgba(255,255,255,.15);
  border: none; border-radius: 8px;
  color: #fff; cursor: pointer; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.wpaisa-header-btn:hover { background: rgba(255,255,255,.25); }

/* ============================================================= */
/* Messages Area                                                 */
/* ============================================================= */
.wpaisa-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--wa-surface);
  scroll-behavior: smooth;
}

.wpaisa-messages::-webkit-scrollbar { width: 5px; }
.wpaisa-messages::-webkit-scrollbar-track { background: transparent; }
.wpaisa-messages::-webkit-scrollbar-thumb { background: var(--wa-border); border-radius: 3px; }

/* ============================================================= */
/* Message Bubbles                                               */
/* ============================================================= */
.wpaisa-msg {
  max-width: 82%;
  animation: wpaisa-msg-in .25s cubic-bezier(.25,.46,.45,.94);
}

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

.wpaisa-msg--bot { align-self: flex-start; }
.wpaisa-msg--user { align-self: flex-end; }

.wpaisa-bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
}

.wpaisa-msg--bot .wpaisa-bubble {
  background: var(--wa-bot-bubble);
  color: var(--wa-text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--wa-border);
}

.wpaisa-msg--user .wpaisa-bubble {
  background: linear-gradient(135deg, var(--wa-primary), var(--wa-primary-dark));
  color: #fff;
  border-bottom-right-radius: 4px;
}

.wpaisa-msg-time {
  font-size: 10px;
  color: var(--wa-muted);
  margin-top: 3px;
  padding: 0 4px;
}
.wpaisa-msg--user .wpaisa-msg-time { text-align: right; }

/* Welcome message */
.wpaisa-welcome {
  text-align: center;
  padding: 10px 0 6px;
}
.wpaisa-welcome-text {
  display: inline-block;
  background: var(--wa-bg);
  border: 1px solid var(--wa-border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--wa-text);
  text-align: left;
  white-space: pre-wrap;
  max-width: 280px;
}

/* ============================================================= */
/* Typing Indicator                                              */
/* ============================================================= */
.wpaisa-typing {
  display: none;
  align-self: flex-start;
}
.wpaisa-typing.show { display: flex; }
.wpaisa-typing-dots {
  background: var(--wa-bot-bubble);
  border: 1px solid var(--wa-border);
  border-radius: 16px;
  border-bottom-left-radius: 4px;
  padding: 12px 16px;
  display: flex;
  gap: 4px;
  align-items: center;
}
.wpaisa-typing-dot {
  width: 7px; height: 7px;
  background: var(--wa-muted);
  border-radius: 50%;
  animation: wpaisa-typing 1.2s infinite;
}
.wpaisa-typing-dot:nth-child(2) { animation-delay: .15s; }
.wpaisa-typing-dot:nth-child(3) { animation-delay: .3s; }

@keyframes wpaisa-typing {
  0%, 60%, 100% { transform: translateY(0); opacity: .6; }
  30% { transform: translateY(-5px); opacity: 1; }
}

/* ============================================================= */
/* WhatsApp Button                                               */
/* ============================================================= */
.wpaisa-wa-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--wa-wa-green), #128c7e);
  color: #fff;
  padding: 10px 14px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
  margin-top: 8px;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 3px 10px rgba(37,211,102,.4);
  animation: wpaisa-msg-in .3s .1s both;
}
.wpaisa-wa-btn:hover { transform: translateY(-2px); box-shadow: 0 5px 16px rgba(37,211,102,.5); color: #fff; }
.wpaisa-wa-btn svg { width: 18px; height: 18px; fill: #fff; }

/* ============================================================= */
/* Lead Capture Form                                             */
/* ============================================================= */
.wpaisa-lead-form {
  padding: 20px 16px;
  background: var(--wa-surface);
  flex: 1;
  overflow-y: auto;
}
.wpaisa-lead-form h3 { font-size: 16px; font-weight: 700; color: var(--wa-text); margin: 0 0 6px; }
.wpaisa-lead-form p { font-size: 13px; color: var(--wa-muted); margin: 0 0 18px; }

.wpaisa-field {
  margin-bottom: 12px;
}
.wpaisa-field label { display: block; font-size: 12px; font-weight: 600; color: var(--wa-text); margin-bottom: 5px; }
.wpaisa-field input {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--wa-border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--wa-text);
  background: var(--wa-bg);
  transition: border-color .2s, box-shadow .2s;
  box-sizing: border-box;
}
.wpaisa-field input:focus { outline: none; border-color: var(--wa-primary); box-shadow: 0 0 0 3px var(--wa-primary-light); }

.wpaisa-start-btn {
  width: 100%;
  padding: 11px;
  background: linear-gradient(135deg, var(--wa-primary), var(--wa-primary-dark));
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .2s, transform .2s;
  margin-top: 6px;
  font-family: inherit;
}
.wpaisa-start-btn:hover { opacity: .92; transform: translateY(-1px); }

/* ============================================================= */
/* Input Area                                                    */
/* ============================================================= */
.wpaisa-input-area {
  padding: 12px 14px;
  background: var(--wa-bg);
  border-top: 1px solid var(--wa-border);
  display: flex;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

.wpaisa-input-wrap {
  flex: 1;
  background: var(--wa-surface);
  border: 1.5px solid var(--wa-border);
  border-radius: 22px;
  padding: 8px 14px;
  display: flex;
  align-items: flex-end;
  transition: border-color .2s;
}
.wpaisa-input-wrap:focus-within { border-color: var(--wa-primary); }

#wpaisa-message-input {
  flex: 1;
  border: none;
  background: transparent;
  resize: none;
  font-size: 14px;
  font-family: inherit;
  color: var(--wa-text);
  max-height: 80px;
  overflow-y: auto;
  line-height: 1.4;
  padding: 0;
}
#wpaisa-message-input:focus { outline: none; }
#wpaisa-message-input::placeholder { color: var(--wa-muted); }

.wpaisa-send-btn {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--wa-primary), var(--wa-primary-dark));
  border: none; border-radius: 50%;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 2px 8px rgba(99,102,241,.35);
}
.wpaisa-send-btn:hover { transform: scale(1.08); }
.wpaisa-send-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.wpaisa-send-btn svg { width: 18px; height: 18px; fill: #fff; }

/* Limit reached */
.wpaisa-limit-reached {
  padding: 16px;
  text-align: center;
  background: var(--wa-surface);
  border-top: 1px solid var(--wa-border);
}
.wpaisa-limit-reached p { font-size: 13px; color: var(--wa-muted); margin: 0 0 10px; }

/* Power by */
.wpaisa-powered {
  text-align: center;
  font-size: 10px;
  color: var(--wa-muted);
  padding: 6px;
  background: var(--wa-bg);
  border-top: 1px solid var(--wa-border);
  flex-shrink: 0;
}
.wpaisa-powered a { color: var(--wa-muted); text-decoration: none; }

/* ============================================================= */
/* Mobile Responsive                                             */
/* ============================================================= */
@media (max-width: 480px) {
  #wpaisa-widget {
    width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    bottom: 0; right: 0; left: 0;
    border-radius: 0;
    transform: translateY(100%) scale(1);
  }
  #wpaisa-widget.open { transform: translateY(0); }
  #wpaisa-launcher { bottom: 16px; right: 16px; }
  #wpaisa-launcher.wpaisa-position-left { right: auto; left: 16px; }
}