/* دستیار هوش مصنوعی هزاردکان — طراحی لیکوید/گلس مدرن */
:root {
  --hzf-g1: #6d5efc;
  --hzf-g2: #c04bff;
  --hzf-g3: #24c6dc;
  --hzf-ink: #171a26;
  --hzf-ink2: #6b7280;
  --hzf-surface: rgba(255, 255, 255, 0.72);
  --hzf-line: rgba(20, 24, 40, 0.08);
  --hzf-nav-h: 88px;
}

/* ============ راه‌انداز هدر دسکتاپ ============ */
.hzf-head-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 8px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  cursor: pointer;
  color: #fff;
  font: inherit;
  font-weight: 700;
  font-size: 13px;
  background: linear-gradient(120deg, var(--hzf-g1), var(--hzf-g2) 55%, var(--hzf-g3));
  background-size: 200% 100%;
  box-shadow: 0 6px 20px rgba(124, 76, 255, 0.35);
  overflow: hidden;
  animation: hzf-flow 6s ease infinite;
  transition: transform 0.22s, box-shadow 0.22s;
}
.hzf-head-btn:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(124, 76, 255, 0.5); }
.hzf-head-btn::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.55) 50%, transparent 70%);
  transform: translateX(-120%);
}
.hzf-head-btn:hover::after { animation: hzf-shine 0.9s ease; }
.hzf-head-orb {
  display: grid; place-items: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(4px);
}
.hzf-head-orb svg { animation: hzf-spin 9s linear infinite; }

/* ============ راه‌انداز موبایل (بالای منوی چسبیده) ============ */
.hzf-launch-bar {
  position: fixed;
  inset-inline: 12px;
  bottom: calc(var(--hzf-nav-h) + env(safe-area-inset-bottom));
  z-index: 68;
  display: flex;
  align-items: center;
  gap: 10px;
  width: auto;
  padding: 9px 12px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--hzf-ink);
  font: inherit;
  text-align: start;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow: 0 10px 30px rgba(24, 24, 60, 0.16), inset 0 0 0 1px rgba(255, 255, 255, 0.4);
  animation: hzf-rise 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}
.hzf-launch-orb {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 50%;
  color: #fff; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--hzf-g1), var(--hzf-g2), var(--hzf-g3));
  background-size: 200% 200%;
  box-shadow: 0 4px 14px rgba(124, 76, 255, 0.4);
  animation: hzf-flow 5s ease infinite;
}
.hzf-launch-orb svg { animation: hzf-spin 9s linear infinite; }
.hzf-launch-ph { flex: 1; font-size: 13.5px; color: var(--hzf-ink2); }
.hzf-launch-go {
  display: grid; place-items: center;
  width: 30px; height: 30px; border-radius: 50%; flex: 0 0 auto;
  color: var(--hzf-g1); background: rgba(124, 76, 255, 0.1);
}

/* ============ پرده و پنل چت ============ */
.hzf-scrim {
  position: fixed; inset: 0; z-index: 99998;
  background: rgba(12, 14, 30, 0.42);
  backdrop-filter: blur(3px);
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s;
}
.hzf-scrim-on { opacity: 1; pointer-events: auto; }
body.hzf-chat-lock { overflow: hidden; }

.hzf-chat {
  position: fixed;
  z-index: 99999;
  direction: rtl;
  font-family: inherit;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--hzf-ink);
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.72));
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
  box-shadow: 0 30px 80px rgba(20, 20, 60, 0.32);
  /* دسکتاپ: کارت شناور */
  inset-inline-end: 22px;
  bottom: 22px;
  width: 392px;
  max-width: calc(100vw - 32px);
  height: 600px;
  max-height: calc(100vh - 80px);
  border-radius: 24px;
  opacity: 0;
  transform: translateY(24px) scale(0.96);
  pointer-events: none;
  transition: opacity 0.32s, transform 0.42s cubic-bezier(0.2, 0.9, 0.2, 1);
}
.hzf-chat-open { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }

.hzf-chat-glow {
  position: absolute; inset-inline: -40%; top: -160px; height: 260px;
  background: radial-gradient(closest-side, rgba(124, 76, 255, 0.45), transparent 70%),
    radial-gradient(closest-side, rgba(36, 198, 220, 0.35), transparent 70%);
  background-position: 30% 0, 70% 20%;
  background-repeat: no-repeat;
  filter: blur(10px);
  pointer-events: none;
  animation: hzf-float 8s ease-in-out infinite alternate;
}

.hzf-chat-head {
  position: relative;
  display: flex; align-items: center; gap: 11px;
  padding: 15px 16px;
  color: #fff;
  background: linear-gradient(120deg, var(--hzf-g1), var(--hzf-g2) 55%, var(--hzf-g3));
  background-size: 200% 100%;
  animation: hzf-flow 7s ease infinite;
}
.hzf-chat-ava {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 14px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.25);
}
.hzf-chat-ava-in {
  display: grid; place-items: center;
  width: 100%; height: 100%; font-weight: 800; font-size: 18px;
}
.hzf-chat-meta { display: flex; flex-direction: column; line-height: 1.35; flex: 1; }
.hzf-chat-title { font-weight: 800; font-size: 15.5px; }
.hzf-chat-sub { display: flex; align-items: center; gap: 6px; font-size: 11.5px; opacity: 0.9; }
.hzf-live {
  width: 7px; height: 7px; border-radius: 50%; background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7);
  animation: hzf-pulse 1.8s infinite;
}
.hzf-chat-close {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 50%;
  border: none; cursor: pointer; color: #fff;
  background: rgba(255, 255, 255, 0.18);
  transition: background 0.2s, transform 0.2s;
}
.hzf-chat-close:hover { background: rgba(255, 255, 255, 0.32); transform: rotate(90deg); }

.hzf-chat-body {
  position: relative;
  flex: 1; overflow-y: auto;
  padding: 16px 14px;
  display: flex; flex-direction: column; gap: 12px;
  scroll-behavior: smooth;
}
.hzf-chat-body::-webkit-scrollbar { width: 6px; }
.hzf-chat-body::-webkit-scrollbar-thumb { background: rgba(120, 120, 150, 0.35); border-radius: 6px; }

.hzf-msg { display: flex; animation: hzf-pop 0.35s cubic-bezier(0.2, 0.9, 0.2, 1) both; }
.hzf-msg-user { justify-content: flex-start; }
.hzf-msg-assistant { justify-content: flex-end; }
.hzf-bubble {
  max-width: 82%;
  padding: 11px 14px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.85;
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: 0 4px 14px rgba(20, 20, 60, 0.08);
}
.hzf-msg-user .hzf-bubble {
  background: #fff;
  border: 1px solid var(--hzf-line);
  border-bottom-inline-start: 4px;
  border-bottom-left-radius: 6px;
}
.hzf-msg-assistant .hzf-bubble {
  color: #fff;
  background: linear-gradient(135deg, var(--hzf-g1), var(--hzf-g2));
  border-bottom-right-radius: 6px;
}

/* نشانگر «در حال فکر کردن» */
.hzf-typing { display: inline-flex; gap: 5px; align-items: center; padding: 13px 16px; }
.hzf-typing span {
  width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, 0.9);
  animation: hzf-blink 1.2s infinite ease-in-out both;
}
.hzf-typing span:nth-child(2) { animation-delay: 0.2s; }
.hzf-typing span:nth-child(3) { animation-delay: 0.4s; }

/* کارت محصولات */
.hzf-cards { display: flex; flex-wrap: wrap; gap: 9px; justify-content: flex-end; }
.hzf-card {
  width: calc(50% - 5px);
  background: #fff;
  border: 1px solid var(--hzf-line);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex; flex-direction: column;
  box-shadow: 0 4px 14px rgba(20, 20, 60, 0.07);
  transition: transform 0.2s, box-shadow 0.2s;
}
.hzf-card:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(20, 20, 60, 0.16); }
.hzf-card-img { height: 104px; background: #eef0f5 center/cover no-repeat; display: block; }
.hzf-card-title { padding: 9px 9px 2px; font-size: 12.5px; font-weight: 700; line-height: 1.55; }
.hzf-card-price { padding: 0 9px 10px; font-size: 12.5px; font-weight: 700; color: var(--hzf-g1); }

/* تأیید اقدام */
.hzf-confirm {
  align-self: flex-end;
  background: #fff;
  border: 1px solid var(--hzf-line);
  border-radius: 16px;
  padding: 12px 14px;
  max-width: 88%;
  box-shadow: 0 6px 18px rgba(20, 20, 60, 0.1);
  animation: hzf-pop 0.35s both;
}
.hzf-confirm-label { display: block; font-size: 13px; margin-bottom: 10px; font-weight: 600; }
.hzf-confirm-btns { display: flex; gap: 9px; }
.hzf-confirm-btns button { border: none; border-radius: 11px; padding: 8px 16px; cursor: pointer; font: inherit; font-size: 13px; font-weight: 700; transition: transform 0.15s, filter 0.15s; }
.hzf-confirm-btns button:hover { transform: translateY(-1px); filter: brightness(1.05); }
.hzf-ok { background: linear-gradient(135deg, #16a34a, #22c55e); color: #fff; }
.hzf-no { background: #eef0f5; color: #374151; }

/* ورودی */
.hzf-chat-form {
  display: flex; align-items: flex-end; gap: 9px;
  padding: 12px;
  border-top: 1px solid var(--hzf-line);
  background: rgba(255, 255, 255, 0.55);
}
.hzf-chat-input {
  flex: 1;
  resize: none;
  max-height: 120px;
  border: 1px solid var(--hzf-line);
  border-radius: 16px;
  padding: 11px 14px;
  font: inherit;
  font-size: 14px;
  line-height: 1.6;
  background: #fff;
  color: var(--hzf-ink);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.hzf-chat-input:focus { border-color: var(--hzf-g1); box-shadow: 0 0 0 3px rgba(124, 76, 255, 0.16); }
.hzf-chat-send {
  display: grid; place-items: center;
  width: 44px; height: 44px; flex: 0 0 auto;
  border: none; border-radius: 15px; cursor: pointer; color: #fff;
  background: linear-gradient(135deg, var(--hzf-g1), var(--hzf-g2));
  box-shadow: 0 6px 16px rgba(124, 76, 255, 0.4);
  transition: transform 0.18s, filter 0.18s;
}
.hzf-chat-send:hover { transform: translateY(-1px) scale(1.04); filter: brightness(1.05); }
.hzf-chat-send svg { transform: scaleX(-1); }

/* توست */
.hzf-toast {
  position: fixed; inset-inline-start: 50%; bottom: 30px;
  transform: translate(50%, 20px);
  background: rgba(23, 26, 38, 0.96);
  color: #fff; padding: 12px 18px; border-radius: 12px;
  font-size: 14px; opacity: 0; transition: all 0.3s;
  z-index: 100000; direction: rtl;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.hzf-toast-show { opacity: 1; transform: translate(50%, 0); }

/* ============ موبایل: شیت تمام‌صفحه ============ */
@media (max-width: 899px) {
  .hzf-chat {
    inset-inline: 0;
    bottom: 0;
    top: auto;
    width: 100%;
    max-width: 100%;
    height: 92vh;
    max-height: 92vh;
    border-radius: 26px 26px 0 0;
    transform: translateY(100%);
  }
  .hzf-chat-open { transform: translateY(0); }
}

/* ============ حالت تاریک ============ */
@media (prefers-color-scheme: dark) {
  :root {
    --hzf-ink: #e8eaf2;
    --hzf-ink2: #9aa3b2;
    --hzf-line: rgba(255, 255, 255, 0.1);
  }
  .hzf-chat {
    color: #e8eaf2;
    border-color: rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(28, 32, 46, 0.9), rgba(20, 23, 34, 0.86));
  }
  .hzf-msg-user .hzf-bubble { background: #262b3a; color: #e8eaf2; }
  .hzf-card { background: #222738; }
  .hzf-confirm { background: #222738; }
  .hzf-no { background: #2b3040; color: #cbd2e0; }
  .hzf-chat-form { background: rgba(20, 23, 34, 0.6); }
  .hzf-chat-input { background: #161a26; color: #e8eaf2; }
  .hzf-launch-bar { background: rgba(28, 32, 46, 0.72); color: #e8eaf2; border-color: rgba(255, 255, 255, 0.12); }
  .hzf-launch-ph { color: #9aa3b2; }
}

/* ============ انیمیشن‌ها ============ */
@keyframes hzf-flow { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
@keyframes hzf-spin { to { transform: rotate(360deg); } }
@keyframes hzf-shine { to { transform: translateX(120%); } }
@keyframes hzf-rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes hzf-pop { from { opacity: 0; transform: translateY(8px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes hzf-blink { 0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); } 40% { opacity: 1; transform: scale(1); } }
@keyframes hzf-pulse { 0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7); } 70% { box-shadow: 0 0 0 7px rgba(74, 222, 128, 0); } 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); } }
@keyframes hzf-float { from { transform: translateY(0); } to { transform: translateY(14px); } }

@media (prefers-reduced-motion: reduce) {
  .hzf-head-btn, .hzf-launch-orb, .hzf-head-orb svg, .hzf-launch-orb svg, .hzf-chat-head, .hzf-chat-glow, .hzf-live { animation: none !important; }
  .hzf-chat { transition: opacity 0.2s; }
}