/**
 * Phase 30.5.2 — Two-state Chat Hub (pre-chat vs live)
 * Strict state isolation · max-height 480 · overflow clipped
 */

.ar-chat-hub {
  --ar-hub-glass: rgba(28, 12, 48, 0.82);
  --ar-hub-border: rgba(200, 150, 255, 0.28);
  --ar-hub-safe-b: env(safe-area-inset-bottom, 0px);
  --ar-hub-safe-l: env(safe-area-inset-left, 0px);

  position: fixed;
  z-index: 999;
  bottom: calc(24px + var(--ar-hub-safe-b));
  left: calc(24px + var(--ar-hub-safe-l));
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  pointer-events: none;
  contain: layout style;
}

.ar-chat-hub__trigger,
.ar-chat-hub__panel {
  pointer-events: auto;
}

.ar-chat-hub__trigger {
  appearance: none;
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.3), transparent 45%),
    linear-gradient(145deg, #7a2aad 0%, #A12273 50%, #3d0d5c 100%);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.16) inset,
    0 8px 20px rgba(61, 13, 80, 0.4);
  transform: translateZ(0);
  transition: transform 0.25s ease;
}

.ar-chat-hub__trigger-glow {
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1px solid rgba(220, 180, 255, 0.5);
  pointer-events: none;
  animation: ar-hub-pulse 2.6s ease-in-out infinite;
}

.ar-chat-hub__trigger-icon {
  position: relative;
  z-index: 1;
}

.ar-chat-hub__trigger:hover {
  transform: scale(1.06);
}

.ar-chat-hub__trigger:focus-visible {
  outline: 2px solid #e8d48b;
  outline-offset: 2px;
}

.ar-chat-hub.is-active .ar-chat-hub__trigger {
  transform: scale(0.92);
}

.ar-chat-hub.is-active .ar-chat-hub__trigger-glow {
  animation: none;
  opacity: 0.35;
}

@keyframes ar-hub-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ar-chat-hub__trigger-glow {
    animation: none;
  }
  .ar-chat-hub__trigger,
  .ar-chat-hub__panel,
  .ar-chat-hub__prechatting,
  .ar-chat-hub__live {
    transition: none !important;
  }
}

/* Panel — hard height budget, clipped corners */
.ar-chat-hub__panel {
  position: absolute;
  z-index: 1;
  left: 0;
  bottom: calc(48px + 10px);
  width: 300px;
  max-width: min(300px, calc(100vw - 24px));
  height: min(480px, calc(100dvh - 7.5rem));
  max-height: 480px;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  border: 1px solid var(--ar-hub-border);
  background: var(--ar-hub-glass);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.08) inset,
    0 16px 36px rgba(10, 4, 28, 0.5);
  color: #f4ecff;
  font-family: Vazirmatn, Tahoma, sans-serif;
  overflow: hidden;
  transform: translate3d(0, 10px, 0) scale(0.97);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.25s ease,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.28s;
  will-change: transform, opacity;
}

.ar-chat-hub.is-active .ar-chat-hub__panel {
  transform: translate3d(0, 0, 0) scale(1);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.ar-chat-hub__header {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 12px 12px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(161, 34, 115, 0.28), transparent);
}

.ar-chat-hub__title {
  margin: 0;
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
}

.ar-chat-hub__status {
  margin: 0.2rem 0 0;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.68rem;
  font-weight: 600;
  color: rgba(200, 255, 220, 0.9);
}

.ar-chat-hub__status-dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: #3ddc84;
  box-shadow: 0 0 0 2px rgba(61, 220, 132, 0.25);
}

.ar-chat-hub__close {
  appearance: none;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.85);
  cursor: pointer;
}

.ar-chat-hub__body {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  padding: 10px 12px 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ar-chat-hub__section-label {
  margin: 0 0 0.4rem;
  font-size: 0.68rem;
  font-weight: 700;
  color: rgba(230, 220, 245, 0.7);
}

.ar-chat-hub__channels + .ar-chat-hub__offline .ar-chat-hub__section-label {
  margin-top: 0.65rem;
}

/* —— Strict two-state isolation —— */
.ar-chat-hub__prechatting,
.ar-chat-hub__live {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  transition: opacity 0.22s ease;
}

.ar-chat-hub.is-prechatting .ar-chat-hub__prechatting {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  overflow-y: auto;
  opacity: 1;
  pointer-events: auto;
}

.ar-chat-hub.is-prechatting .ar-chat-hub__live,
.ar-chat-hub__live[hidden] {
  display: none !important;
  opacity: 0;
  pointer-events: none;
}

.ar-chat-hub.is-live .ar-chat-hub__prechatting {
  display: none !important;
  opacity: 0;
  pointer-events: none;
}

.ar-chat-hub.is-live .ar-chat-hub__live {
  display: flex !important;
  flex-direction: column;
  gap: 0.45rem;
  opacity: 1;
  pointer-events: auto;
}

.ar-chat-hub__form[hidden],
.ar-chat-hub__msg[hidden],
.ar-chat-hub__prechatting[hidden] {
  display: none !important;
}

.ar-chat-hub__channels,
.ar-chat-hub__offline {
  display: block;
  flex: 0 0 auto;
}

/* Horizontal messenger chips */
.ar-chat-hub__rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.4rem;
}

.ar-chat-hub__rail:has(> :nth-child(1):nth-last-child(1)) {
  grid-template-columns: 1fr;
}
.ar-chat-hub__rail:has(> :nth-child(2):nth-last-child(1)),
.ar-chat-hub__rail:has(> :nth-child(1):nth-last-child(2)) {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.ar-chat-hub__rail:has(> :nth-child(3):nth-last-child(1)),
.ar-chat-hub__rail:has(> :nth-child(1):nth-last-child(3)) {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ar-chat-hub__chip {
  display: grid;
  justify-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.2rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.07);
  color: inherit;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.ar-chat-hub__chip:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.ar-chat-hub__chip-ico {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 10px;
  color: #d9b8ff;
  background: rgba(138, 43, 226, 0.25);
}

.ar-chat-hub__chip--telegram .ar-chat-hub__chip-ico,
.ar-chat-hub__chip--tg .ar-chat-hub__chip-ico {
  color: #7ec8ff;
  background: rgba(36, 161, 222, 0.22);
}

.ar-chat-hub__chip--whatsapp .ar-chat-hub__chip-ico,
.ar-chat-hub__chip--wa .ar-chat-hub__chip-ico {
  color: #6dffb0;
  background: rgba(37, 211, 102, 0.18);
}

.ar-chat-hub__chip--bale .ar-chat-hub__chip-ico {
  color: #9ad4ff;
  background: rgba(0, 136, 204, 0.22);
}

.ar-chat-hub__chip--rubika .ar-chat-hub__chip-ico {
  color: #ffb4d4;
  background: rgba(220, 40, 120, 0.2);
}

.ar-chat-hub__chip-label {
  font-size: 0.65rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  line-height: 1.2;
}

.ar-chat-hub__form {
  display: grid;
  gap: 0.35rem;
}

.ar-chat-hub__honey {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.ar-chat-hub__field input,
.ar-chat-hub__field select {
  width: 100%;
  box-sizing: border-box;
  height: 36px;
  margin: 0;
  padding: 0 0.65rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 4, 20, 0.42);
  color: #fff;
  font: inherit;
  font-size: 0.82rem;
  outline: none;
}

.ar-chat-hub__field textarea {
  width: 100%;
  box-sizing: border-box;
  height: 56px;
  max-height: 56px;
  margin: 0;
  padding: 0.45rem 0.65rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(8, 4, 20, 0.42);
  color: #fff;
  font: inherit;
  font-size: 0.82rem;
  line-height: 1.4;
  resize: none;
  overflow-y: auto;
  outline: none;
}

.ar-chat-hub__field select option {
  color: #1a0a28;
}

.ar-chat-hub__field input::placeholder,
.ar-chat-hub__field textarea::placeholder {
  color: rgba(220, 210, 240, 0.42);
}

.ar-chat-hub__field input:focus,
.ar-chat-hub__field select:focus,
.ar-chat-hub__field textarea:focus {
  border-color: rgba(200, 150, 255, 0.5);
  box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.22);
}

.ar-chat-hub__submit {
  appearance: none;
  width: 100%;
  height: 38px;
  margin: 0.1rem 0 0;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #A12273, #6b1f9a);
  color: #fff;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 750;
  cursor: pointer;
}

.ar-chat-hub__submit:disabled {
  opacity: 0.65;
  cursor: wait;
}

.ar-chat-hub__msg {
  margin: 0;
  padding: 0.4rem 0.55rem;
  border-radius: 8px;
  font-size: 0.72rem;
  line-height: 1.45;
  background: rgba(61, 220, 132, 0.12);
  color: #b8f5d0;
}

.ar-chat-hub__msg.is-error {
  background: rgba(255, 90, 120, 0.14);
  color: #ffc0cc;
}

/* Live conversation column */
.ar-chat-hub__live-log {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0.45rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ar-chat-hub__bubble {
  max-width: 92%;
  padding: 0.4rem 0.55rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  flex: 0 0 auto;
}

.ar-chat-hub__bubble.is-visitor {
  align-self: flex-start;
}

.ar-chat-hub__bubble.is-staff {
  align-self: flex-end;
  background: rgba(161, 34, 115, 0.35);
}

.ar-chat-hub__bubble.is-bot {
  align-self: flex-end;
  background: rgba(90, 40, 120, 0.45);
  border: 1px solid rgba(232, 212, 139, 0.22);
}

.ar-chat-hub__bubble-who {
  display: block;
  margin-bottom: 0.12rem;
  font-size: 0.62rem;
  font-weight: 800;
  color: rgba(232, 212, 139, 0.9);
}

.ar-chat-hub__bubble p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.45;
  word-break: break-word;
  white-space: pre-wrap;
}

.ar-chat-hub__live-wait {
  margin: 0;
  font-size: 0.72rem;
  color: rgba(230, 220, 245, 0.65);
  text-align: center;
}

.ar-chat-hub__live-form {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem;
  align-items: end;
}

.ar-chat-hub__live-form .ar-chat-hub__field {
  margin: 0;
}

.ar-chat-hub__submit--mini {
  width: auto;
  min-width: 4.2rem;
  height: 36px;
  padding: 0 0.75rem;
}

.ar-chat-hub__live-new {
  appearance: none;
  flex: 0 0 auto;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: rgba(232, 212, 139, 0.85);
  font: inherit;
  font-size: 0.7rem;
  font-weight: 650;
  cursor: pointer;
  text-align: center;
}

@media (max-width: 767px) {
  .ar-chat-hub {
    bottom: calc(4.85rem + 24px + var(--ar-hub-safe-b));
    left: calc(24px + var(--ar-hub-safe-l));
  }

  .ar-chat-hub__panel {
    width: min(300px, calc(100vw - 20px));
    max-width: calc(100vw - 20px);
    height: min(480px, calc(100dvh - 8.5rem));
    max-height: 480px;
  }
}

@media (max-width: 380px) {
  .ar-chat-hub__panel {
    width: calc(100vw - 16px);
    max-width: calc(100vw - 16px);
  }

  .ar-chat-hub__chip-label {
    font-size: 0.6rem;
  }
}