:root{
  --chat-primary: #0d6efd;
  --chat-primary-soft: rgba(13,110,253,.18);
  --chat-bg: #0b1220;
  --chat-bg-soft: rgba(255,255,255,.04);
  --chat-border: rgba(255,255,255,.08);
  --chat-text: rgba(255,255,255,.95);
  --chat-text-soft: rgba(255,255,255,.7);
}

/* Bot */
.chatbot-btn{
  position: fixed;
  right: 24px;
  bottom: 110px;
  width: 68px;
  height: 68px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--chat-primary), #3b82f6);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  z-index: 9999;
  box-shadow:
    0 12px 30px rgba(13,110,253,.45),
    inset 0 0 0 1px rgba(255,255,255,.2);
  transition: transform .2s ease, box-shadow .2s ease;
}

.chatbot-btn:hover{
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 18px 40px rgba(13,110,253,.6);
}

.chatbot-btn:active{
  transform: scale(.96);
}

.chatbot-panel{
  position: fixed;
  right: 50px;
  bottom: 190px;
  width: 360px;
  max-width: calc(150vw - 40px);
  height: 520px;
  max-height: 72vh;
  background:
    radial-gradient(1200px 600px at top right, rgba(13,110,253,.12), transparent),
    var(--chat-bg);
  border-radius: 18px;
  border: 1px solid var(--chat-border);
  box-shadow:
    0 25px 70px rgba(0,0,0,.45),
    inset 0 0 0 1px rgba(255,255,255,.02);
  display: none;
  overflow: hidden;
  z-index: 9999;
  opacity: 0;
  transform: translateY(20px) scale(.97);
  transition: all .25s ease;
}

.chatbot-panel.open{
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateY(0) scale(1);
}

.chatbot-header{
  padding: 16px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background:
    linear-gradient(180deg, rgba(13,110,253,.35), rgba(11,18,32,0));
  border-bottom: 1px solid var(--chat-border);
  color: var(--chat-text);
}

.chatbot-title{
  font-weight: 700;
  letter-spacing: .2px;
}

.chatbot-subtitle{
  font-size: 12px;
  color: var(--chat-text-soft);
}

.chatbot-close{
  background: rgba(255,255,255,.06);
  border: 1px solid var(--chat-border);
  color: var(--chat-text);
  font-size: 16px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s ease, transform .15s ease;
}

.chatbot-close:hover{
  background: rgba(255,255,255,.12);
  transform: rotate(90deg);
}

.chatbot-messages{
  padding: 14px;
  flex: 1;
  overflow-y: auto;
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,.2) transparent;
}

.chatbot-messages::-webkit-scrollbar{
  width: 6px;
}
.chatbot-messages::-webkit-scrollbar-thumb{
  background: rgba(255,255,255,.18);
  border-radius: 999px;
}

.msg{
  display: flex;
  margin: 10px 0;
  animation: msgIn .25s ease;
}

@keyframes msgIn{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: translateY(0); }
}

.msg.bot{ justify-content: flex-start; }
.msg.user{ justify-content: flex-end; }

.bubble{
  max-width: 86%;
  padding: 11px 13px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.35;
  word-wrap: break-word;
}

.msg.bot .bubble{
  background: var(--chat-bg-soft);
  color: var(--chat-text);
  border: 1px solid var(--chat-border);
  border-bottom-left-radius: 6px;
}

/* Usuario */
.msg.user .bubble{
  background: linear-gradient(135deg, var(--chat-primary), #3b82f6);
  color: #fff;
  border-bottom-right-radius: 6px;
}

.chatbot-quick{
  padding: 10px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: rgba(0,0,0,.22);
  border-top: 1px solid var(--chat-border);
}

.chatbot-chip{
  border: 1px solid var(--chat-border);
  background: rgba(255,255,255,.06);
  color: var(--chat-text);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: all .15s ease;
}

.chatbot-chip:hover{
  background: var(--chat-primary-soft);
  border-color: var(--chat-primary);
  color: #fff;
}

.chatbot-input{
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  background: rgba(0,0,0,.35);
  border-top: 1px solid var(--chat-border);
}

.chatbot-input input{
  flex: 1;
  border-radius: 14px;
  border: 1px solid var(--chat-border);
  background: rgba(255,255,255,.05);
  color: var(--chat-text);
  padding: 11px 14px;
  outline: none;
  transition: border .15s ease, background .15s ease;
}

.chatbot-input input::placeholder{
  color: rgba(255,255,255,.45);
}

.chatbot-input input:focus{
  border-color: var(--chat-primary);
  background: rgba(255,255,255,.08);
}

.chatbot-input button{
  border: none;
  border-radius: 14px;
  padding: 0 16px;
  background: linear-gradient(135deg, var(--chat-primary), #3b82f6);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
  transition: transform .15s ease, box-shadow .15s ease;
}

.chatbot-input button:hover{
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(13,110,253,.4);
}

@media (max-width: 420px){
  .chatbot-panel{
    width: calc(100vw - 32px);
    right: 16px;
    bottom: 140px;
    height: 80vh;
  }

  .chatbot-btn{
    right: 16px;
    bottom: 80px;
  }
}