/* ============================================
   Support Chat Widget
   Modern, animated, accessible design
   ============================================ */

/* ---- Honeypot (anti-bot, invisible to real users) ---- */
.support-chat__hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ---- Toggle Button ---- */
.support-chat__toggle {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  padding: 0;
  background: var(--gradient-primary);
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
  border-radius: 50%;
  cursor: pointer;
  z-index: 9998;
  box-shadow:
    0 0 30px -5px rgba(91, 53, 255, 0.5),
    0 10px 40px -10px rgba(0, 0, 0, 0.4);
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal),
    filter var(--transition-normal);
}

.support-chat__toggle:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 0 50px -5px rgba(91, 53, 255, 0.6),
    0 15px 50px -10px rgba(0, 0, 0, 0.5);
  filter: brightness(1.1);
}

.support-chat__toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.support-chat__toggle:active {
  transform: translateY(0) scale(0.98);
}

/* ---- Chat Panel ---- */
.support-chat__panel {
  position: fixed;
  bottom: calc(var(--space-6) + 60px);
  right: var(--space-6);
  width: 360px;
  max-width: calc(100vw - var(--space-8));
  max-height: 70vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  box-shadow:
    0 0 60px -15px rgba(91, 53, 255, 0.4),
    0 25px 80px -20px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 9999;

  /* Hidden state */
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition:
    opacity var(--transition-slow),
    visibility var(--transition-slow),
    transform var(--transition-slow);
}

.support-chat__panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* ---- Header ---- */
.support-chat__header {
  padding: var(--space-4);
  background: linear-gradient(to bottom, var(--color-bg-light), var(--color-bg));
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.support-chat__title {
  margin: 0;
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.support-chat__title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--color-secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.9); }
}

.support-chat__header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.support-chat__new-conv,
.support-chat__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: var(--text-base);
  line-height: 1;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.support-chat__new-conv:hover,
.support-chat__close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-border);
}

.support-chat__new-conv:focus-visible,
.support-chat__close:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---- Messages Area ---- */
.support-chat__messages {
  flex: 1;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  overflow-y: auto;
  min-height: 200px;
  background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.2));

  /* Custom scrollbar */
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-light) transparent;
}

.support-chat__messages::-webkit-scrollbar {
  width: 6px;
}

.support-chat__messages::-webkit-scrollbar-track {
  background: transparent;
}

.support-chat__messages::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: var(--radius-full);
}

.support-chat__messages::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-lighter);
}

/* ---- Message Bubbles ---- */
.support-chat__bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-xl);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  max-width: 85%;
  white-space: pre-wrap;
  word-wrap: break-word;

  /* Animation on appear */
  animation: bubble-appear 0.3s ease-out forwards;
}

@keyframes bubble-appear {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.support-chat__bubble.user {
  align-self: flex-end;
  background: var(--gradient-primary);
  color: var(--color-text);
  border-bottom-right-radius: var(--radius-sm);
  box-shadow: 0 4px 15px -5px rgba(91, 53, 255, 0.4);
}

.support-chat__bubble.bot {
  align-self: flex-start;
  background: var(--color-bg-lighter);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: var(--radius-sm);
}

.support-chat__sources {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border-subtle);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ---- Feedback Buttons ---- */
.support-chat__feedback {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border-subtle);
}

.support-chat__feedback-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  cursor: pointer;
  padding: 0;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
}

.support-chat__feedback-btn:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-border);
}

.support-chat__feedback-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.support-chat__feedback-btn.selected {
  background: var(--color-secondary);
  color: var(--color-bg);
  border-color: var(--color-secondary);
}

.support-chat__feedback-btn.selected-up {
  background: #22c55e;
  color: var(--color-bg);
  border-color: #22c55e;
}

.support-chat__feedback-btn:disabled {
  cursor: default;
  opacity: 0.5;
}

.support-chat__feedback-btn.selected:disabled,
.support-chat__feedback-btn.selected-up:disabled {
  opacity: 1;
}

.support-chat__feedback-thanks {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  animation: feedback-thanks-appear 0.3s ease-out forwards;
}

.support-chat__feedback-error {
  color: #ef4444; /* Red for error state */
}

@keyframes feedback-thanks-appear {
  from {
    opacity: 0;
    transform: translateX(-4px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---- Links in Bot Messages ---- */
.support-chat__bubble.bot a {
  color: var(--color-secondary);
  font-weight: var(--font-bold);
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
  transition: color var(--transition-fast), filter var(--transition-fast);
}

.support-chat__bubble.bot a:hover {
  color: var(--color-accent);
  filter: brightness(1.2);
}

/* ---- Input Form ---- */
.support-chat__form {
  padding: var(--space-3);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  background: var(--color-bg-light);
}

.support-chat__input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  resize: none;
  overflow-y: hidden;
  line-height: 1.4;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

.support-chat__input::placeholder {
  color: var(--color-text-faint);
}

.support-chat__input:hover {
  border-color: var(--color-border-light);
}

.support-chat__input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-light);
  box-shadow: 0 0 0 3px rgba(91, 53, 255, 0.2);
}

.support-chat__send {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0;
  background: var(--gradient-primary);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    filter var(--transition-fast),
    box-shadow var(--transition-fast);
}

.support-chat__send:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: scale(1.02);
  box-shadow: 0 4px 15px -5px rgba(91, 53, 255, 0.5);
}

.support-chat__send:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.support-chat__send:active:not(:disabled) {
  transform: scale(0.98);
}

.support-chat__send:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---- Typing Indicator ---- */
.support-chat__typing {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-4) var(--space-5);
  min-height: 44px;
}

.support-chat__typing-dot {
  width: 8px;
  height: 8px;
  background: var(--color-text-muted);
  border-radius: var(--radius-full);
  animation: typing-bounce 1.4s ease-in-out infinite;
}

.support-chat__typing-dot:nth-child(1) {
  animation-delay: 0s;
}

.support-chat__typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.support-chat__typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing-bounce {
  0%, 60%, 100% {
    transform: translateY(0);
    background: var(--color-text-faint);
  }
  30% {
    transform: translateY(-8px);
    background: var(--color-secondary);
  }
}

/* ---- Empty State ---- */
.support-chat__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--color-text-muted);
}

.support-chat__empty-icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-3);
  opacity: 0.5;
}

.support-chat__empty-text {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ---- Accessibility: Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
  .support-chat__toggle,
  .support-chat__panel,
  .support-chat__bubble,
  .support-chat__input,
  .support-chat__send,
  .support-chat__new-conv,
  .support-chat__close,
  .support-chat__feedback-btn,
  .support-chat__feedback-thanks {
    transition: none;
    animation: none;
  }

  .support-chat__title::before {
    animation: none;
  }

  .support-chat__panel.is-open {
    transform: none;
  }

  .support-chat__typing-dot {
    animation: none;
  }

  .support-chat__typing-dot:nth-child(1) { opacity: 0.4; }
  .support-chat__typing-dot:nth-child(2) { opacity: 0.6; }
  .support-chat__typing-dot:nth-child(3) { opacity: 0.8; }
}

/* ---- Mobile Responsive ---- */
@media (max-width: 480px) {
  .support-chat__toggle {
    bottom: var(--space-4);
    right: var(--space-4);
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
  }

  .support-chat__panel {
    bottom: calc(var(--space-4) + 56px);
    right: var(--space-4);
    left: var(--space-4);
    width: auto;
    max-height: 60vh;
  }

  .support-chat__messages {
    min-height: 150px;
  }
}