/* Widget chat — PBO-AssistantIA (iframe) */

.amo-chat {
  --amo-chat-fab-size: 3.5rem;
  --amo-chat-radius: 1.25rem;
  --amo-chat-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.35);
  --amo-chat-glow: 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.amo-chat__backdrop {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: rgba(5, 10, 18, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.amo-chat__backdrop[hidden] {
  display: none;
}

.amo-chat-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.amo-chat__fab {
  position: fixed;
  z-index: 1060;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  width: var(--amo-chat-fab-size);
  height: var(--amo-chat-fab-size);
  padding: 0;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(145deg, #3d8bfd 0%, #7c5cff 55%, #a855f7 100%);
  box-shadow: var(--amo-chat-shadow), var(--amo-chat-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  isolation: isolate;
}

.amo-chat__fab:hover {
  transform: scale(1.06);
  box-shadow: 0 0.75rem 2.5rem rgba(61, 139, 253, 0.45), var(--amo-chat-glow);
}

.amo-chat__fab:active {
  transform: scale(0.98);
}

.amo-chat__fab:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.amo-chat__fab-icon {
  width: 1.65rem;
  height: 1.65rem;
  display: block;
}

.amo-chat__fab-pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(124, 92, 255, 0.55);
  animation: amo-chat-pulse 2.2s ease-out infinite;
  pointer-events: none;
}

@keyframes amo-chat-pulse {
  0% {
    transform: scale(1);
    opacity: 0.7;
  }
  100% {
    transform: scale(1.35);
    opacity: 0;
  }
}

.amo-chat__panel {
  position: fixed;
  z-index: 1050;
  right: max(1rem, env(safe-area-inset-right));
  bottom: calc(max(1rem, env(safe-area-inset-bottom)) + var(--amo-chat-fab-size) + 0.75rem);
  width: min(100vw - 2rem, 22rem);
  height: min(32rem, calc(100dvh - 6.5rem));
  max-height: calc(100dvh - 6.5rem);
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #1c2636 0%, #141c28 100%);
  border-radius: var(--amo-chat-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--amo-chat-shadow);
  overflow: hidden;
  animation: amo-chat-in 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.amo-chat__panel[hidden] {
  display: none;
}

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

.amo-chat__header {
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1rem 0.875rem;
  background: linear-gradient(135deg, rgba(61, 139, 253, 0.25) 0%, rgba(124, 92, 255, 0.2) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.amo-chat__header h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: #f0f4fa;
  line-height: 1.25;
}

.amo-chat__subtitle {
  margin: 0.2rem 0 0;
  font-size: 0.75rem;
  color: rgba(232, 236, 241, 0.65);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.amo-chat__close {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  color: #e8ecf1;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.amo-chat__close:hover {
  background: rgba(255, 255, 255, 0.14);
}

.amo-chat__close:focus-visible {
  outline: 2px solid #3d8bfd;
  outline-offset: 2px;
}

.amo-chat__body {
  flex: 1;
  min-height: 0;
  position: relative;
  background: #0f1419;
}

.amo-chat__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: #fff;
}

.amo-chat__iframe[hidden] {
  display: none;
}

.amo-chat__fallback {
  position: absolute;
  inset: 0;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.75rem;
  color: #9aa5b1;
  font-size: 0.875rem;
  line-height: 1.45;
}

.amo-chat__fallback[hidden] {
  display: none;
}

.amo-chat__fallback strong {
  color: #e8ecf1;
  font-size: 0.9375rem;
}

.amo-chat__fallback code {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15rem 0.4rem;
  border-radius: 0.35rem;
  color: #7eb6ff;
}

body.amo-chat--open {
  overflow: hidden;
}

@media (max-width: 28rem) {
  .amo-chat__panel {
    width: calc(100vw - 1.5rem);
    right: 0.75rem;
    bottom: calc(max(0.75rem, env(safe-area-inset-bottom)) + var(--amo-chat-fab-size) + 0.5rem);
  }
}