/* ===== Chat Widget — 3D & Premium Scroll ===== */

.chat-widget { perspective: 1200px; }

.chat-panel {
  transform-style: preserve-3d;
  border: 1px solid rgba(0, 240, 255, 0.12);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 0 48px rgba(0, 240, 255, 0.08);
  backdrop-filter: blur(20px);
  background: rgba(10, 10, 18, 0.92);
}

.chat-panel.active {
  animation: chat-panel-pop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: scale(1) translateY(0) rotateX(var(--tilt-y, 0deg)) rotateY(var(--tilt-x, 0deg));
}

@keyframes chat-panel-pop {
  0% { transform: scale(0.75) translateY(24px) rotateX(12deg); opacity: 0; }
  100% { transform: scale(1) translateY(0) rotateX(0); opacity: 1; }
}

.chat-header {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(168, 85, 247, 0.08));
  position: relative;
  overflow: hidden;
}

.chat-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.08), transparent);
  transform: translateX(-100%);
  animation: chat-header-shine 4s ease infinite;
}

@keyframes chat-header-shine {
  0%, 100% { transform: translateX(-100%); }
  50% { transform: translateX(100%); }
}

.chat-header h4 {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}

.chat-messages-wrap {
  position: relative;
}

.chat-messages-wrap::before,
.chat-messages-wrap::after {
  content: '';
  position: absolute;
  left: 0;
  right: 8px;
  height: 20px;
  z-index: 2;
  pointer-events: none;
}

.chat-messages-wrap::before {
  top: 0;
  background: linear-gradient(to bottom, rgba(10, 10, 18, 0.95), transparent);
}

.chat-messages-wrap::after {
  bottom: 0;
  background: linear-gradient(to top, rgba(10, 10, 18, 0.95), transparent);
}

.chat-messages {
  height: 340px;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 20px 14px 20px 16px;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 240, 255, 0.55) transparent;
  mask-image: linear-gradient(to bottom, transparent 0, #000 16px, #000 calc(100% - 16px), transparent 100%);
}

.chat-messages::-webkit-scrollbar { width: 5px; }
.chat-messages::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 99px;
  margin: 8px 0;
}
.chat-messages::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 99px;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
}
.chat-messages::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #33f5ff, #c084fc);
}

.chat-msg {
  animation: chat-msg-in 0.4s cubic-bezier(0.34, 1.2, 0.64, 1) both;
  transform-origin: bottom center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  position: relative;
}

.chat-msg.user { animation-name: chat-msg-in-user; }

@keyframes chat-msg-in {
  from { opacity: 0; transform: translateY(12px) translateZ(-20px) scale(0.92); }
  to { opacity: 1; transform: translateY(0) translateZ(0) scale(1); }
}

@keyframes chat-msg-in-user {
  from { opacity: 0; transform: translateY(12px) translateX(-8px) scale(0.92); }
  to { opacity: 1; transform: translateY(0) translateX(0) scale(1); }
}

.chat-msg.bot {
  border: 1px solid rgba(0, 240, 255, 0.12);
  backdrop-filter: blur(8px);
}

.chat-msg.bot::before {
  content: '🤖';
  position: absolute;
  top: -8px;
  inset-inline-start: 10px;
  font-size: 0.65rem;
  opacity: 0.7;
}

.chat-input {
  background: rgba(0, 0, 0, 0.25);
  transform: translateZ(10px);
}

.chat-input input {
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.2s;
}

.chat-input input:focus {
  border-color: rgba(0, 240, 255, 0.45);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.1);
  transform: translateY(-1px);
}

.chat-input button {
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(0, 240, 255, 0.25);
}

.chat-input button:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(0, 240, 255, 0.35);
}

.chat-toggle {
  transform-style: preserve-3d;
  box-shadow: 0 8px 32px rgba(0, 240, 255, 0.35);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
}

.chat-toggle:hover {
  transform: scale(1.12) translateZ(12px) rotateY(8deg);
  box-shadow: 0 12px 40px rgba(0, 240, 255, 0.5);
}

.chat-scroll-hint {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  z-index: 3;
  animation: chat-scroll-bounce 2s ease infinite;
}

.chat-scroll-hint.visible { opacity: 0.7; }

@keyframes chat-scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(4px); }
}