:root {
  --main-bg: #212121;
  --glass-bg: #232323;
  --primary: #fafafa;
  --secondary: #000000;
  --accent: #424242;
  --bot-bubble: #242424;
  --user-bubble: #292929;
  --shadow: 0 8px 32px 0 rgba(0,0,0,0.45), 0 1.5px 8px #1118;
  --radius: 22px;
  --font: 'Inter', 'Segoe UI', Arial, sans-serif;
}

html, body {
  overflow: hidden;
  height: 100%;
  width: 100%;
  font-family: var(--font);
}

body {
  position: fixed;
  inset: 0;
  overscroll-behavior: none;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-width: 100vw;
  background: var(--main-bg);
  position: relative;
  z-index: 1;
}

#bgParticles {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: auto;   /* <-- Cambia esto */
  z-index: 0;
  display: block;
}

.chat-widget {
  position: relative;
  margin: auto;
  left: 0; right: 0; top: 0; bottom: 0;
  width: 1200px;
  max-width: 96vw;
  height: 850px;
  max-height: 90vh;
  background: var(--glass-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 100;
  transition: box-shadow 0.2s, opacity 0.2s;
  opacity: 1;
  animation: fadeInUp 0.5s, chatFadeIn 0.7s cubic-bezier(.61,-0.01,.45,1.35);
  border-radius: 32px 32px 24px 24px;
  border: 2.5px solid #353535;
  box-shadow:
    0 8px 40px 0 rgba(0,0,0,0.32),
    0 2px 12px #111a,
    0 0 0 3px #44444444 inset;
  background: linear-gradient(135deg, #232323 80%, #292929 100%);
  overflow: hidden;
}

/* Animación de entrada para el chat (más suave y elástica) */
.chat-widget {
  animation: chatFadeIn 0.8s cubic-bezier(.61,-0.01,.45,1.35);
}
@keyframes chatFadeIn {
  from { opacity: 0; transform: scale(0.92) translateY(60px);}
  60% { opacity: 1; transform: scale(1.04) translateY(-8px);}
  to   { opacity: 1; transform: scale(1) translateY(0);}
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px);}
  to { opacity: 1; transform: translateY(0);}
}
/* Animación de entrada para el chat */
@keyframes chatFadeIn {
  from { opacity: 0; transform: scale(0.92) translateY(60px);}
  60% { opacity: 1; transform: scale(1.04) translateY(-8px);}
  to   { opacity: 1; transform: scale(1) translateY(0);}
}

/* Animación de cierre del chat */
@keyframes chatCloseEffect {
  to {
    opacity: 0;
    transform: scale(0.7);
  }
}
.chat-widget.closing {
  animation: chatCloseEffect 0.45s cubic-bezier(.61,-0.01,.45,1.35) forwards;
}

.chat-header {
  background: var(--glass-bg);
  border-bottom: 1.5px solid #61616155;
  padding: 0.8em 1.2em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-radius: 18px 18px 0 0;
  border-bottom: 1.5px solid #444444;
  border-top: none;
  box-shadow: 0 2px 8px #23232322;
}
.chat-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.chat-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ffffff 60%, #3f3f3f 100%);
  box-shadow: 0 2px 12px #5e5e5e55;
  border: 2px solid #444444;
}
.chat-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.chat-title {
  font-weight: 500;
  font-size: 0.97em;
  color: var(--primary);
  letter-spacing: 0.5px;
}
.chat-subtitle {
  font-size: 0.93em;
  color: #1d1d1d;
  opacity: 0.85;
  margin-top: 2px;
}
.chat-close {
  background: none;
  border: none;
  font-size: 1.25em;
  color: #474747;
  cursor: pointer;
  padding: 0 0 0 8px;
  transition: transform 0.18s cubic-bezier(.61,-0.01,.45,1.35), color 0.2s;
}
.chat-close:hover,
.chat-close:focus {
  transform: scale(1.22);
  color: #000000;
  outline: none;
}

.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 22px 18px 12px 18px;
  background: transparent;
  display: flex;
  flex-direction: column;
  gap: 18px;
  scroll-behavior: smooth;
}

/* Barra de scroll personalizada para el chat */
.chat-body::-webkit-scrollbar {
  width: 10px;
  background: #d3d3d3;
  border-radius: 8px;
}
.chat-body::-webkit-scrollbar-thumb {
  background: #292929;
  border-radius: 8px;
  min-height: 40px;
  box-shadow: 0 2px 8px #6c63ff22;
}
.chat-body::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #3b3b3b 60%, #3d3d3d 100%);
}

.message-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  max-width: 90%;
  margin-bottom: 2px;
  opacity: 0;
  transform: translateY(30px) scale(0.98);
  animation: msgIn 0.5s cubic-bezier(.61,-0.01,.45,1.35) forwards;
}
.message-row.user { flex-direction: row-reverse; }
.message-row.visible {
  opacity: 1;
  transform: none;
}
@keyframes msgIn {
  0%   { opacity: 0; transform: translateY(40px) scale(0.97);}
  70%  { opacity: 1; transform: translateY(-8px) scale(1.03);}
  100% { opacity: 1; transform: translateY(0) scale(1);}
}
.message-bubble {
  padding: 14px 18px;
  border-radius: 18px 18px 18px 8px;
  background: var(--bot-bubble);
  color: var(--primary);
  font-size: 1.08em;
  box-shadow: 0 2px 8px #63636322;
  border: 2px solid #353535;
  position: relative;
  min-width: 48px;
  max-width: 80vw;
  word-break: break-word;
  animation: fadeInBubble 0.4s;
  margin-bottom: 8px;
  border-radius: 22px 22px 18px 18px;
  border: 1.8px solid #353535;
  box-shadow: 0 2px 12px #1118;
  background-clip: padding-box;
  padding: 16px 22px 16px 22px;
  position: relative;
  padding-right: 44px; /* deja espacio para el botón */
  border: 2px solid #353535 !important;
  box-shadow: 0 2px 12px #23232355, 0 1px 6px #1118;
  background-clip: padding-box;
}

@keyframes fadeInBubble {
  from { opacity: 0; transform: scale(0.95);}
  to { opacity: 1; transform: scale(1);}
}
.message-row.user .message-bubble {
  background: var(--user-bubble);
  color: var(--primary);
  border: 2px solid #444444;
  border-radius: 18px 18px 8px 18px;
  background: linear-gradient(135deg, #292929 80%, #232323 100%);
  margin-left: 5vw;
  margin-right: 0;
}
.message-meta {
  font-size: 0.62em;
  color: #3b3b3b;
  margin-top: 6px;
  text-align: right;
  opacity: 0.7;
  display: block;
}

.typing-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 6px;
}
.typing-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin: 0 2px;
  background: #353535b7;
  border-radius: 50%;
  opacity: 0.7;
  animation: blink 1.2s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s;}
.typing-dot:nth-child(3) { animation-delay: 0.4s;}
@keyframes blink {
  0%, 80%, 100% { opacity: 0.3; }
  40% { opacity: 1; }
}

.chat-footer {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 16px 16px 16px;
  background: #52525218;
  border-top: 1.5px solid #29292955;
  border-radius: 0 0 18px 18px;
  border-top: 1.5px solid #444444;
  border-bottom: none;
  box-shadow: 0 -2px 8px #23232322;
}
.chat-footer-row {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px; /* Más espacio entre botones */
}
.chat-footer input[type="text"] {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  flex: 1 1 auto;
  padding-left: 18px;
  padding-right: 18px;
  height: 52px;
  font-size: 1.08em;
  border-radius: 18px;
  margin-right: 10px;
  box-sizing: border-box;
}
.chat-footer input[type="text"]:focus {
  border: 1.5px solid var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px #FFD70033;
  transition: box-shadow 0.2s;
}
.chat-footer button {
  background: none;
  border: none;
  font-size: 1.05em;
  color: #505050;
  cursor: pointer;
  padding: 0 8px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.chat-footer button.chat-send {
  background: linear-gradient(90deg, #47474700 0%rgba(92, 92, 92, 0)5c 100%);
  color: #444444;
  border-radius: 50%;
  font-size: 1.25em;
  box-shadow: 0 2px 8px #46464600;
  padding: 0;
  width: 44px;
  height: 44px;
  margin-left: 12px !important;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  transition: 
    background 0.3s,
    box-shadow 0.3s,
    transform 0.18s cubic-bezier(.61,-0.01,.45,1.35);
}
.chat-footer button.chat-send:hover,
.chat-footer button.chat-send:focus {
  background: linear-gradient(90deg, #25252500 0%, #11111100 100%);
  box-shadow: 0 4px 16px #50505000;
  transform: scale(1.13);
  outline: none;
}
.chat-footer button.chat-extra {
  color: #3b3b3b;
}
.chat-footer button.chat-extra:hover {
  color: #272727;
}

.chat-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 64px;
  height: 64px;
  background: #292929;
  color: var(--primary);
  border: none;
  border-radius: 50%;
  box-shadow: 0 4px 24px #111a;
  font-size: 2em;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, transform 0.18s cubic-bezier(.61,-0.01,.45,1.35);
}
.chat-fab:hover {
  background: #424242;
  color: var(--primary);
  box-shadow: 0 8px 32px #20202055;
  transform: scale(1.08);
}

.copy-btn {
  position: absolute;
  top: 25%;
  right: 12px;
  transform: translateY(-50%);
  background: #2323238e;
  color: #555555;
  border: none;
  border-radius: 7px;
  padding: 5px 10px;
  font-size: 1em;
  box-shadow: 0 1px 6px #1114;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, background 0.2s, color 0.2s;
  z-index: 2;
  display: flex;
  align-items: center;
  max-width: 60%;
  min-width: 32px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Muestra el botón solo al pasar el mouse o enfocar la burbuja */
.message-bubble:hover .copy-btn,
.message-bubble:focus-within .copy-btn,
.message-row:hover .copy-btn,
.message-row:focus-within .copy-btn {
  opacity: 1;
  pointer-events: auto;
}

/* Si la burbuja es muy pequeña, el botón también se reduce */
.message-bubble {
  min-height: 28px;
}

.char-counter {
  width: 100%;
  text-align: right;
  font-size: 0.80em;
  color: #5e5e5e;
  margin: 0 2px 0 0;
  pointer-events: none;
}
@media (max-width: 600px) {
  .chat-widget {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    bottom: 0;
    right: 0;
    border-radius: 0;
  }
  .chat-fab {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
    font-size: 1.5em;
  }
  .char-counter {
    right: 8px;
    bottom: 60px;
    font-size: 0.88em;
  }
}

/* Mejor adaptación profesional para celular */
@media (max-width: 600px), (max-height: 700px) {
  body.mobile .chat-widget {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100vh !important;
    max-height: 100vh !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    left: 0; right: 0; top: 0; bottom: 0;
    padding: 0 !important;
    display: flex !important;
    flex-direction: column !important;
  }
  body.mobile .chat-header {
    padding: 10px 8px 10px 8px !important;
    min-height: 54px;
  }
  body.mobile .chat-body {
    padding: 10px 4px 8px 4px !important;
    gap: 10px !important;
    font-size: 1em !important;
    max-height: calc(100vh - 170px) !important;
  }
  body.mobile .message-bubble {
    font-size: 1em !important;
    padding: 12px 14px 12px 14px !important;
    min-width: 36px !important;
    max-width: 90vw !important;
    border-radius: 16px 16px 12px 12px !important;
  }
  body.mobile .message-row {
    max-width: 100vw !important;
    gap: 6px !important;
  }
  body.mobile .chat-footer {
    padding: 8px 4px 8px 4px !important;
    min-height: 64px;
    background: #232323f2;
    border-top: 1.5px solid #29292955;
    box-sizing: border-box;
  }
  body.mobile .chat-footer-row {
    width: 100%;
    max-width: 100vw;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
  }
  body.mobile .chat-footer input[type="text"] {
    width: 100%;
    min-width: 0;
    max-width: 100vw;
    flex: 1 1 auto;
    padding-left: 10px;
    padding-right: 10px;
    height: 38px;
    font-size: 1em;
    border-radius: 12px;
    margin-right: 0;
    box-sizing: border-box;
  }
  body.mobile .chat-footer button.chat-send {
    width: 38px;
    height: 38px;
    font-size: 1.1em;
    margin-left: 2px;
    border-radius: 50%;
    padding: 0;
  }
  body.mobile .chat-footer button.chat-extra {
    font-size: 1.1em;
    margin-right: 2px;
  }
  body.mobile .char-counter {
    font-size: 0.93em;
    margin-top: 2px;
    margin-bottom: 0;
    padding-right: 2px;
    text-align: right;
  }
  body.mobile .copy-btn {
    right: 6px !important;
    font-size: 0.95em !important;
    padding: 4px 7px !important;
    max-width: 80% !important;
  }
  body.mobile .image-preview {
    max-width: 96vw !important;
    max-height: 180px !important;
  }
  body.mobile .image-preview-container {
    margin: 8px 0 !important;
  }
}

.image-upload-btn {
  color: #666666;
  font-size: 1.25em;
  cursor: pointer;
  margin-right: 8px;
  transition: color 0.2s;
}
.image-upload-btn:hover {
  color: #e0e0e0;
}

.chat-img-preview {
  max-width: 180px;
  max-height: 180px;
  border-radius: 10px;
  margin: 6px 0;
  display: block;
  box-shadow: 0 2px 8px #23252655;
}

/* Vista previa de imagen generada */
.image-preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 12px 0;
  position: relative;
}

.image-preview {
  max-width: 220px;
  max-height: 220px;
  border-radius: 14px;
  box-shadow: 0 2px 12px #23252633;
  margin-bottom: 10px;
  transition: box-shadow 0.2s, transform 0.2s;
  border: 2px solid #e0e7ff;
  object-fit: cover;
}

.image-preview:hover {
  box-shadow: 0 4px 24px #6c63ff44;
  transform: scale(1.03);
}

.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e0e7ff;
  color: #232526;
  border: none;
  border-radius: 8px;
  padding: 7px 14px 7px 10px;
  font-size: 1.1em;
  cursor: pointer;
  box-shadow: 0 1px 6px #e0e7ff33;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  position: absolute;
  bottom: 10px;
  right: 10px;
}

.download-btn:hover {
  background: #c7d2fe;
  color: #6c63ff;
  transform: scale(1.08);
}

.download-btn .fa-copy {
  margin-right: 4px;
  font-size: 1.1em;
  position: relative;
}

.download-btn .arrow-down {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 8px solid #232526;
  margin-left: 2px;
  margin-bottom: -2px;
}

/* Todo el texto en blanco por defecto */
html, body,
.chat-widget,
.chat-header,
.chat-title,
.chat-subtitle,
.chat-body,
.message-bubble,
.message-row.user .message-bubble,
.copy-btn,
.download-btn,
.chat-fab,
.new-chat-btn,
.char-counter,
input,
button,
label,
span,
div,
p,
a {
  color: #fff !important;
}

/* EXCEPTO el input de la barra de chat, que será negro */
.chat-footer input[type="text"] {
  color: #111 !important;
  background: #a8a8a8 !important; /* Opcional: fondo blanco para mejor contraste */
}

.device-selector-overlay {
  position: fixed;
  z-index: 9999;
  inset: 0;
  background: rgba(33,33,33,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s;
}
.device-selector-box {
  background: linear-gradient(135deg, #232323 80%, #292929 100%);
  border-radius: 28px;
  box-shadow: 0 8px 40px #23232388;
  padding: 38px 32px 32px 32px;
  text-align: center;
  border: 2.5px solid #444444;
  color: #fff;
  min-width: 260px;
}
.device-selector-box h2 {
  font-size: 1.25em;
  margin-bottom: 22px;
  color: #fff;
  font-weight: 600;
}
.device-btn {
  background: linear-gradient(90deg, #303030 60%, #3b3b3b 100%);
  color: #232323;
  border: none;
  border-radius: 14px;
  font-size: 1.1em;
  font-weight: 600;
  padding: 14px 28px;
  margin: 0 16px;
  margin-top: 8px;
  box-shadow: 0 2px 12px #63636333;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.device-btn:hover {
  background: linear-gradient(90deg, #8a8a8a 60%, #4b4b4b 100%);
  color: #232323;
  transform: scale(1.06);
}

/* Animación de entrada para el chat (más suave y elástica) */
.chat-widget {
  animation: chatFadeIn 0.8s cubic-bezier(.61,-0.01,.45,1.35);
}
@keyframes chatFadeIn {
  from { opacity: 0; transform: scale(0.92) translateY(60px);}
  60% { opacity: 1; transform: scale(1.04) translateY(-8px);}
  to   { opacity: 1; transform: scale(1) translateY(0);}
}

/* Animación de entrada para cada mensaje (más rebote) */
.message-row {
  opacity: 0;
  transform: translateY(40px) scale(0.97);
  animation: msgIn 0.55s cubic-bezier(.61,-0.01,.45,1.35) forwards;
}
@keyframes msgIn {
  0%   { opacity: 0; transform: translateY(40px) scale(0.97);}
  70%  { opacity: 1; transform: translateY(-8px) scale(1.03);}
  100% { opacity: 1; transform: translateY(0) scale(1);}
}

/* Animación para el botón de enviar */
.chat-footer button,
.chat-footer .chat-send {
  transition: background 0.2s, color 0.2s, transform 0.18s cubic-bezier(.61,-0.01,.45,1.35), box-shadow 0.18s;
}
.chat-footer button:active,
.chat-footer .chat-send:active {
  transform: scale(0.93) rotate(-8deg);
  box-shadow: 0 2px 12px #0003;
}

/* Animación para el input al enfocar */
.chat-footer input[type="text"]:focus {
  box-shadow: 0 0 0 3px #FFD70033;
  transition: box-shadow 0.2s;
}

/* Animación para el botón de copiar */
.copy-btn {
  transition: background 0.2s, color 0.2s, transform 0.18s cubic-bezier(.61,-0.01,.45,1.35), opacity 0.2s;
}
.copy-btn:active {
  transform: scale(0.93) rotate(8deg);
}

/* Animación para la imagen generada */
.message-bubble img {
  animation: imgPop 0.7s cubic-bezier(.61,-0.01,.45,1.35);
  box-shadow: 0 2px 16px #0003;
}
@keyframes imgPop {
  0%   { opacity: 0; transform: scale(0.85);}
  70%  { opacity: 1; transform: scale(1.05);}
  100% { opacity: 1; transform: scale(1);}
}

/* Animación para el selector de dispositivo */
.device-selector-overlay {
  animation: fadeInOverlay 0.5s cubic-bezier(.61,-0.01,.45,1.35);
}
@keyframes fadeInOverlay {
  from { opacity: 0;}
  to   { opacity: 1;}
}
.device-selector-box {
  animation: popInBox 0.7s cubic-bezier(.61,-0.01,.45,1.35);
}
@keyframes popInBox {
  from { opacity: 0; transform: scale(0.85);}
  70%  { opacity: 1; transform: scale(1.05);}
  to   { opacity: 1; transform: scale(1);}
}

/* Animación para el FAB */
.chat-fab {
  transition: background 0.2s, box-shadow 0.2s, transform 0.18s cubic-bezier(.61,-0.01,.45,1.35);
}
.chat-fab:active {
  transform: scale(0.93) rotate(-8deg);
}

/* Adaptación para móvil */
body.mobile .chat-widget {
  width: 100vw !important;
  max-width: 100vw !important;
  height: 100vh !important;
  max-height: 100vh !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  left: 0; right: 0; top: 0; bottom: 0;
}
body.mobile .chat-header,
body.mobile .chat-footer {
  padding-left: 8px !important;
  padding-right: 8px !important;
}
body.mobile .chat-body {
  padding-left: 6px !important;
  padding-right: 6px !important;
}
body.mobile .chat-fab {
  right: 12px !important;
  bottom: 12px !important;
  width: 54px !important;
  height: 54px !important;
  font-size: 1.5em !important;
}

/* Adaptación para PC */
body.pc .chat-widget {
  width: 1200px !important;
  max-width: 96vw !important;
  height: 850px !important;
  max-height: 90vh !important;
  border-radius: 32px 32px 24px 24px !important;
  box-shadow: 0 8px 40px 0 rgba(0,0,0,0.32), 0 2px 12px #111a !important;
}
body.pc .chat-fab {
  right: 32px !important;
  bottom: 32px !important;
  width: 64px !important;
  height: 64px !important;
  font-size: 2em !important;
}

/* Forzar la burbuja del usuario más a la izquierda */
.message-row.user {
  justify-content: flex-end !important;
}

.message-row.user .message-bubble {
  margin-right: -8.5vw !important;
  margin-left: auto !important;
}

.chat-send {
  margin-left: 12px !important;
}

/* Mejora botón "Pensar" y su luz */
.chat-think {
  position: relative;
  background: #232323 !important;
  color: #949494 !important;
  border: none;
  border-radius: 50% !important;
  width: 48px !important;
  height: 48px !important;
  min-width: 48px !important;
  min-height: 48px !important;
  font-size: 1.25em;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px #FFD70033;
  transition: 
    background 0.3s cubic-bezier(.61,-0.01,.45,1.35),
    color 0.3s cubic-bezier(.61,-0.01,.45,1.35),
    box-shadow 0.3s cubic-bezier(.61,-0.01,.45,1.35),
    transform 0.18s cubic-bezier(.61,-0.01,.45,1.35);
  z-index: 2;
  overflow: visible;
}

.chat-think .fa-lightbulb {
  color: #949494 !important;
  transition: color 0.3s cubic-bezier(.61,-0.01,.45,1.35), text-shadow 0.3s;
  z-index: 2;
}

.chat-think .think-light {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 80px;
  height: 80px;
  pointer-events: none;
  border-radius: 50% !important;
  transform: translate(-50%, -50%);
  opacity: 0;
  background: radial-gradient(circle, #ffe066 0%, #ffd70088 60%, transparent 100%);
  filter: blur(2px);
  transition: opacity 0.3s, filter 0.3s;
  z-index: 1;
}
.chat-think.thinking .think-light {
  opacity: 0.5;
  animation: thinkGlowReal 1.2s infinite alternate;
  filter: blur(4px);
}
@keyframes thinkGlowReal {
  0%   { opacity: 0.3; filter: blur(2px);}
  60%  { opacity: 0.5; filter: blur(6px);}
  100% { opacity: 0.4; filter: blur(4px);}
}

.chat-think.thinking {
  background: #ffd90049 !important;
  color: #232323 !important;
  box-shadow: 0 0 32px 10px #ffd90036, 0 2px 8px #FFD70033;
}

.chat-think.thinking .fa-lightbulb {
  color: #fff7008e !important;
  text-shadow: 0 0 6px #ffe066, 0 0 32px #ffd9005b;
}

.chat-think.thinking .think-light {
  opacity: 1;
  animation: thinkGlowReal 1.2s infinite alternate;
  filter: blur(10px);
}

@keyframes thinkGlowReal {
  0%   { opacity: 0.7; filter: blur(4px);}
  60%  { opacity: 1; filter: blur(16px);}
  100% { opacity: 0.85; filter: blur(8px);}
}