/**
 * AI Widget — Modern chat interface
 * Design: Smooth animations, gradient header, amber accent
 */

.softip-ai-widget {
  position: fixed;
  bottom: var(--s-4);
  right: var(--s-4);
  z-index: 1000;
  font-family: var(--ff-sans);
}

/* Toggle Button */
.softip-ai-widget__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  background: linear-gradient(135deg, var(--c-amber-500) 0%, var(--c-amber-600) 100%);
  color: #1a1a1a;
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(200, 133, 63, 0.3), 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: transform 200ms ease-out, box-shadow 200ms ease-out;
}

.softip-ai-widget__toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(200, 133, 63, 0.4), 0 3px 6px rgba(0, 0, 0, 0.12);
}

.softip-ai-widget__toggle:active {
  transform: translateY(0);
}

.softip-ai-widget__dot {
  width: 10px;
  height: 10px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
  animation: pulse-dot 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Panel */
.softip-ai-widget__panel {
  position: absolute;
  bottom: calc(100% + var(--s-3));
  right: 0;
  width: min(420px, calc(100vw - var(--s-6)));
  max-height: 600px;
  background: var(--c-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15), 0 4px 8px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slide-up 250ms ease-out;
}

.softip-ai-widget__panel[hidden] {
  display: none;
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Header */
.softip-ai-widget__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--c-amber-500) 0%, var(--c-amber-600) 100%);
  color: white;
}

.softip-ai-widget__head strong {
  display: block;
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  line-height: 1.3;
}

.softip-ai-widget__head span {
  display: block;
  font-size: var(--fs-caption);
  opacity: 0.9;
  margin-top: 0.125rem;
}

.softip-ai-widget__close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background 150ms ease-out;
}

.softip-ai-widget__close:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Messages */
.softip-ai-widget__messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  background: var(--c-paper);
  min-height: 280px;
  max-height: 420px;
}

.softip-ai-widget__msg {
  max-width: 85%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--fs-body);
  line-height: 1.5;
  word-wrap: break-word;
  animation: fade-in 200ms ease-out;
}

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

.softip-ai-widget__msg--bot {
  align-self: flex-start;
  background: var(--c-surface);
  color: var(--c-text);
  border: 1px solid var(--c-border);
}

.softip-ai-widget__msg--user {
  align-self: flex-end;
  background: var(--c-amber-500);
  color: white;
}

/* Typing Indicator */
.softip-ai-widget__msg--bot.is-typing::after {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1em;
  margin-left: 0.25rem;
  background: currentColor;
  animation: blink-cursor 1s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* Form */
.softip-ai-widget__form {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
}

.softip-ai-widget__form textarea {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.95);
  color: #1a1a1a;
  font-family: inherit;
  font-size: var(--fs-body);
  line-height: 1.5;
  resize: none;
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
}

.softip-ai-widget__form textarea:focus {
  outline: none;
  border-color: var(--c-amber-500);
  box-shadow: 0 0 0 3px rgba(200, 133, 63, 0.1);
}

.softip-ai-widget__form button {
  flex-shrink: 0;
  padding: 0.75rem 1.25rem;
  background: var(--c-amber-500);
  color: white;
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background 150ms ease-out, transform 150ms ease-out;
}

.softip-ai-widget__form button:hover:not(:disabled) {
  background: var(--c-amber-600);
  transform: translateY(-1px);
}

.softip-ai-widget__form button:active:not(:disabled) {
  transform: translateY(0);
}

.softip-ai-widget__form button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .softip-ai-widget {
    bottom: var(--s-3);
    right: var(--s-3);
    left: var(--s-3);
  }

  .softip-ai-widget__toggle {
    width: 100%;
    justify-content: center;
  }

  .softip-ai-widget__panel {
    width: 100%;
    max-height: 70vh;
    bottom: calc(100% + var(--s-2));
  }

  .softip-ai-widget__messages {
    min-height: 240px;
    max-height: calc(70vh - 180px);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .softip-ai-widget__toggle,
  .softip-ai-widget__panel,
  .softip-ai-widget__msg,
  .softip-ai-widget__form textarea,
  .softip-ai-widget__form button {
    animation: none;
    transition: none;
  }

  .softip-ai-widget__dot {
    animation: none;
  }
}