/**
 * Sticky AI assistant — desktop (larger) + mobile (compact, above bottom nav)
 */
.ms-ai-widget { font-family: 'DM Sans', system-ui, sans-serif; }

.ms-ai-fab {
  position: fixed;
  z-index: 450;
  right: max(16px, env(safe-area-inset-right, 0px));
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  width: 58px;
  height: 58px;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #1e293b 0%, #0f172a 50%, #1e3a5f 100%);
  color: #fff;
  box-shadow:
    0 10px 28px rgba(15, 23, 42, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.12) inset,
    0 0 0 3px rgba(250, 88, 8, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: ms-ai-pulse 2.8s ease-in-out infinite;
}
.ms-ai-fab:hover {
  transform: scale(1.06);
  box-shadow:
    0 14px 36px rgba(15, 23, 42, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.18) inset,
    0 0 0 4px rgba(250, 88, 8, 0.35);
}
.ms-ai-fab:active { transform: scale(0.98); }

.ms-ai-fab-inner {
  font-size: 1.65rem;
  line-height: 1;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

@keyframes ms-ai-pulse {
  0%, 100% { box-shadow: 0 10px 28px rgba(15, 23, 42, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.12) inset, 0 0 0 3px rgba(250, 88, 8, 0.22); }
  50% { box-shadow: 0 10px 32px rgba(15, 23, 42, 0.42), 0 0 0 1px rgba(255, 255, 255, 0.15) inset, 0 0 0 5px rgba(250, 88, 8, 0.38); }
}

/* Mobile: smaller FAB, sit above app bottom tab bar */
@media (max-width: 767px) {
  .ms-ai-fab {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: calc(88px + max(8px, env(safe-area-inset-bottom, 0px)));
  }
  .ms-ai-fab-inner { font-size: 1.35rem; }
}

/* Desktop: larger assistant */
@media (min-width: 1024px) {
  .ms-ai-fab {
    width: 68px;
    height: 68px;
    border-radius: 22px;
    bottom: max(28px, env(safe-area-inset-bottom, 0px));
    right: max(28px, env(safe-area-inset-right, 0px));
  }
  .ms-ai-fab-inner { font-size: 2rem; }
}

.ms-ai-panel {
  position: fixed;
  z-index: 460;
  right: max(16px, env(safe-area-inset-right, 0px));
  bottom: max(20px, env(safe-area-inset-bottom, 0px));
  width: min(400px, calc(100vw - 32px));
  max-height: min(560px, 70vh);
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.22), 0 0 0 1px rgba(15, 23, 42, 0.08);
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.ms-ai-panel.open {
  display: flex;
}

@media (max-width: 767px) {
  .ms-ai-panel {
    right: 12px;
    left: 12px;
    width: auto;
    bottom: calc(88px + max(8px, env(safe-area-inset-bottom, 0px)));
    max-height: min(480px, 58vh);
    border-radius: 18px;
  }
}

@media (min-width: 1024px) {
  .ms-ai-panel {
    width: min(420px, calc(100vw - 48px));
    max-height: min(620px, 72vh);
    bottom: max(108px, env(safe-area-inset-bottom, 0px));
    right: max(28px, env(safe-area-inset-right, 0px));
  }
}

.ms-ai-panel-hd {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
}
.ms-ai-panel-hd-ico {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: rgba(250, 88, 8, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}
.ms-ai-panel-hd-text { flex: 1; min-width: 0; }
.ms-ai-panel-hd-title { font-weight: 800; font-size: 0.9375rem; letter-spacing: -0.02em; }
.ms-ai-panel-hd-sub { font-size: 0.6875rem; opacity: 0.85; margin-top: 2px; }
.ms-ai-close {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
}

.ms-ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  background: #f8fafc;
  min-height: 180px;
  max-height: 360px;
  font-size: 0.8125rem;
  line-height: 1.5;
}
.ms-ai-msg { margin-bottom: 12px; }
.ms-ai-msg.user { text-align: right; }
.ms-ai-msg.user .ms-ai-bubble {
  display: inline-block;
  text-align: left;
  background: #fff;
  border: 1px solid #e2e8f0;
  padding: 10px 12px;
  border-radius: 14px 14px 4px 14px;
  max-width: 92%;
  color: #1e293b;
}
.ms-ai-msg.bot .ms-ai-bubble {
  background: linear-gradient(135deg, #fff 0%, #f1f5f9 100%);
  border: 1px solid rgba(250, 88, 8, 0.15);
  padding: 10px 12px;
  border-radius: 14px 14px 14px 4px;
  max-width: 94%;
  color: #334155;
}
.ms-ai-msg.bot .ms-ai-bubble strong { color: #0f172a; }

.ms-ai-foot {
  padding: 12px;
  border-top: 1px solid #e2e8f0;
  background: #fff;
  display: flex;
  gap: 8px;
}
.ms-ai-input {
  flex: 1;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.875rem;
  font-family: inherit;
  outline: none;
}
.ms-ai-input:focus { border-color: rgba(250, 88, 8, 0.5); }
.ms-ai-send {
  border: none;
  border-radius: 12px;
  padding: 0 16px;
  font-weight: 700;
  font-size: 0.8125rem;
  cursor: pointer;
  background: linear-gradient(135deg, #fa5808, #ea580c);
  color: #fff;
}
.ms-ai-send:disabled { opacity: 0.55; cursor: not-allowed; }

.ms-ai-hint {
  font-size: 0.625rem;
  color: #94a3b8;
  padding: 0 16px 10px;
  text-align: center;
}

body.ms-ai-open .ms-ai-fab { display: none; }