/* ===========================================================================
   AI yordamchi: barcha sahifalarda o'ng pastda turadigan suhbat oynasi
   =========================================================================== */

.assistant {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--s-3);
}

/* --- Ochish tugmasi ------------------------------------------------------- */

.assistant__launcher {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.7rem 1rem;
  border: 0;
  border-radius: var(--radius-full);
  background: var(--brand-600);
  color: var(--text-invert);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.assistant__launcher:hover {
  background: var(--brand-700);
  transform: translateY(-2px);
}

.assistant.is-open .assistant__launcher {
  display: none;
}

/* --- Oyna ----------------------------------------------------------------- */

.assistant__panel {
  display: flex;
  flex-direction: column;
  width: min(400px, calc(100vw - var(--s-8)));
  height: min(560px, calc(100vh - var(--s-16)));
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.assistant__head {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.assistant__head-icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: var(--radius-sm);
  background: var(--brand-50);
  color: var(--brand-600);
}

.assistant__head-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.assistant__head-text strong {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  color: var(--ink-900);
}

.assistant__head-text span {
  font-size: var(--fs-xs);
  color: var(--text-subtle);
}

/* --- Suhbat oqimi --------------------------------------------------------- */

.assistant__log {
  flex: 1;
  overflow-y: auto;
  padding: var(--s-4);
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.assistant__intro {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--fs-sm);
  line-height: 1.7;
  padding: var(--s-5) var(--s-3);
}

.assistant__intro-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin: 0 auto var(--s-3);
  border-radius: var(--radius-full);
  background: var(--brand-50);
  color: var(--brand-600);
}

.assistant-msg {
  max-width: 88%;
  padding: var(--s-3) var(--s-4);
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.assistant-msg--user {
  align-self: flex-end;
  background: var(--brand-600);
  color: var(--text-invert);
  border-bottom-right-radius: var(--radius-xs);
}

.assistant-msg--bot {
  align-self: flex-start;
  background: var(--surface-2);
  color: var(--ink-800);
  border-bottom-left-radius: var(--radius-xs);
}

.assistant-msg--error {
  align-self: stretch;
  max-width: 100%;
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

/* Manbalar - javob ostidagi havolalar */
.assistant-sources {
  align-self: flex-start;
  max-width: 88%;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  padding-left: var(--s-1);
}

.assistant-source {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--text-muted);
  font-size: var(--fs-xs);
  line-height: 1.5;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.assistant-source:hover {
  border-color: var(--brand-300);
  color: var(--brand-700);
}

.assistant-source__num {
  font-weight: 700;
  color: var(--brand-600);
}

/* Yozilmoqda ko'rsatkichi */
.assistant-typing {
  align-self: flex-start;
  display: flex;
  gap: 4px;
  padding: var(--s-3) var(--s-4);
  background: var(--surface-2);
  border-radius: var(--radius);
}

.assistant-typing span {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--ink-300);
  animation: assistant-blink 1.2s infinite;
}

.assistant-typing span:nth-child(2) { animation-delay: 0.2s; }
.assistant-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes assistant-blink {
  0%, 60%, 100% { opacity: 0.3; }
  30% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .assistant-typing span { animation: none; opacity: 0.6; }
  .assistant__launcher:hover { transform: none; }
}

/* --- Yozish maydoni ------------------------------------------------------- */

.assistant__form {
  display: flex;
  align-items: flex-end;
  gap: var(--s-2);
  padding: var(--s-3);
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.assistant__input {
  flex: 1;
  min-height: 40px;
  max-height: 120px;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  line-height: 1.5;
  resize: none;
}

.assistant__input:focus {
  outline: none;
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px var(--brand-50);
}

/* Mehmonlar uchun: yozish o'rniga kirish taklifi */
.assistant__gate {
  padding: var(--s-5) var(--s-4);
  border-top: 1px solid var(--border);
  background: var(--surface-2);
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.assistant__gate-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: 0 auto var(--s-2);
  border-radius: var(--radius-full);
  background: var(--surface-3);
  color: var(--text-subtle);
}

.assistant__gate p {
  margin-bottom: var(--s-3);
}

.assistant__gate .row {
  justify-content: center;
}

/* --- Mobil ---------------------------------------------------------------- */

@media (max-width: 640px) {
  .assistant {
    right: var(--s-3);
    bottom: var(--s-3);
    left: var(--s-3);
    align-items: flex-end;
  }

  .assistant__panel {
    width: 100%;
    height: min(70vh, calc(100vh - var(--s-12)));
  }

  .assistant__launcher-text {
    display: none;
  }

  .assistant__launcher {
    padding: 0.85rem;
  }
}