/* ─────────────────────────────────────────────────────────────
   CHAT WIDGET — floating launcher + slide-in panel
   ───────────────────────────────────────────────────────────── */

/* Launcher */
.chat-launcher {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 250;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px 12px 12px;
  background: var(--ink-deep);
  color: #FFFFFF;
  border-radius: 999px;
  font-family: var(--sans);
  cursor: none;
  isolation: isolate;
  box-shadow:
    0 14px 40px -14px rgba(83, 114, 253, .45),
    0 4px 14px -6px rgba(0, 0, 0, .25);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease);
  overflow: hidden;
}
[data-theme="dark"] .chat-launcher {
  background: var(--bg-tint);
  border: 1px solid var(--line-strong);
}
.chat-launcher::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--brand-grad);
  opacity: 0;
  transition: opacity .4s var(--ease);
  z-index: -1;
}
.chat-launcher:hover {
  transform: translateY(-2px);
  box-shadow:
    0 20px 50px -14px rgba(203, 107, 230, .55),
    0 6px 16px -6px rgba(0, 0, 0, .3);
}
.chat-launcher:hover::before { opacity: 1; }

.chat-launcher-icon {
  width: 38px; height: 38px;
  border-radius: 999px;
  background: var(--brand-grad);
  display: grid; place-items: center;
  flex-shrink: 0;
  transition: transform .4s var(--ease);
}
.chat-launcher:hover .chat-launcher-icon { transform: rotate(12deg); }
.chat-launcher.is-open .chat-launcher-icon {
  background: rgba(255,255,255,.18);
}

.chat-launcher-label {
  line-height: 1;
  padding-right: 4px;
}
.chat-launcher-label strong {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.005em;
}
.chat-launcher.is-open .chat-launcher-label { display: none; }
.chat-launcher.is-open { padding: 12px; }

/* attention pulse when user idle */
.chat-launcher.is-pulse:not(.is-open)::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid var(--violet);
  animation: chatPulse 2.2s var(--ease) infinite;
  pointer-events: none;
}
@keyframes chatPulse {
  0%   { transform: scale(1);    opacity: .8; }
  100% { transform: scale(1.18); opacity: 0;  }
}

/* Panel */
.chat-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 240;
  width: min(380px, calc(100vw - 32px));
  height: min(600px, calc(100vh - 120px));
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow:
    0 30px 80px -20px rgba(0, 0, 0, .35),
    0 8px 24px -8px rgba(83, 114, 253, .25);
  transform: translateY(20px) scale(.98);
  opacity: 0;
  pointer-events: none;
  transform-origin: bottom right;
  transition: transform .42s var(--ease), opacity .35s var(--ease);
}
.chat-panel.is-open {
  transform: translateY(-72px) scale(1);
  opacity: 1;
  pointer-events: auto;
}
@media (max-width: 540px) {
  .chat-panel {
    width: calc(100vw - 16px);
    right: 8px;
    height: calc(100vh - 100px);
  }
  .chat-panel.is-open { transform: translateY(-72px) scale(1); }
}

/* Head */
.chat-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.chat-head-avatar {
  width: 40px; height: 40px;
  border-radius: 12px;
  overflow: hidden;
}
.chat-head-name {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.chat-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
}
.chat-status-dot {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: #2db77b;
  box-shadow: 0 0 0 3px color-mix(in oklab, #2db77b 22%, transparent);
}
.chat-head-sub {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}
.chat-head-close {
  width: 32px; height: 32px;
  border-radius: 999px;
  display: grid; place-items: center;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  background: transparent;
  transition: background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}
.chat-head-close:hover {
  background: var(--ink-deep);
  color: #FFFFFF;
  transform: rotate(90deg);
}

/* Body */
.chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background:
    radial-gradient(circle at 100% 0%, color-mix(in oklab, var(--violet) 7%, transparent) 0%, transparent 40%),
    radial-gradient(circle at 0% 100%, color-mix(in oklab, var(--blue) 6%, transparent) 0%, transparent 40%),
    var(--bg);
}
.chat-body::-webkit-scrollbar { width: 6px; }
.chat-body::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 999px; }

.chat-msg {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  max-width: 88%;
}
.chat-msg--user { align-self: flex-end; }
.chat-msg--assistant { align-self: flex-start; }
.chat-msg-avatar {
  width: 24px; height: 24px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.chat-msg-bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.chat-msg--user .chat-msg-bubble {
  background: var(--brand-grad);
  color: #FFFFFF;
  border-bottom-right-radius: 4px;
}
.chat-msg--assistant .chat-msg-bubble {
  background: var(--bg-warm);
  color: var(--ink);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
}

/* ─── In-chat action card (form filled) ─── */
.chat-action-card {
  margin-top: 10px;
  padding: 12px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--line-strong);
  display: grid;
  gap: 8px;
  position: relative;
  overflow: hidden;
}
.chat-action-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--brand-grad);
}
.chat-action-head {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
}
.chat-action-mark {
  width: 22px; height: 22px;
  border-radius: 999px;
  background: var(--brand-grad);
  color: #FFFFFF;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.chat-action-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--ink-soft);
}
.chat-action-fields b {
  font-weight: 600;
  color: var(--muted);
  margin-right: 4px;
}
.chat-action-cta {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background: var(--ink-deep);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 500;
  cursor: none;
  transition: background .2s var(--ease), transform .2s var(--ease);
  margin-top: 4px;
}
.chat-action-cta:hover {
  background: var(--violet-deep);
  transform: translateX(2px);
}

/* typing */
.chat-typing {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  padding: 4px 2px;
}
.chat-typing span {
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--muted);
  animation: chatDot 1s var(--ease) infinite;
}
.chat-typing span:nth-child(2) { animation-delay: .15s; }
.chat-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes chatDot {
  0%, 80%, 100% { transform: scale(.6); opacity: .4; }
  40%           { transform: scale(1);   opacity: 1;  }
}

/* Suggestions */
.chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 16px 12px;
}
.chat-suggestion {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  cursor: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}
.chat-suggestion:hover {
  border-color: var(--violet);
  color: var(--violet-deep);
}

/* Input */
.chat-input {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--line);
  background: var(--bg);
}
.chat-input input {
  flex: 1;
  font: inherit;
  font-size: 14px;
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--bg-warm);
  color: var(--ink);
  outline: none;
  cursor: text;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.chat-input input:focus {
  border-color: var(--blue);
  background: var(--bg);
}
.chat-input input::placeholder { color: var(--muted); }
.chat-input input:disabled { opacity: .5; }

.chat-send {
  width: 40px; height: 40px;
  border-radius: 999px;
  display: grid; place-items: center;
  background: var(--brand-grad);
  color: #FFFFFF;
  cursor: none;
  flex-shrink: 0;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.chat-send:hover:not(:disabled) { transform: translateX(2px) translateY(-1px); }
.chat-send:disabled { opacity: .35; }

.chat-foot {
  padding: 6px 16px 12px;
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  background: var(--bg);
}
.chat-foot a {
  color: var(--violet-deep);
  font-weight: 500;
}