/* ================================================================
   PPN Chat Widget
   ================================================================ */

/* ── Toggle button ───────────────────────────────────────────── */
.ppn-chat-btn {
  position: fixed;
  bottom: 86px;
  right: 28px;
  z-index: 3500;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #0E5BB0 0%, #1E88E5 100%);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px -4px rgba(14,91,176,.55), 0 2px 6px rgba(0,0,0,.18);
  transition: transform .22s cubic-bezier(.22,.7,.2,1), box-shadow .22s;
  opacity: 0;
  pointer-events: none;
}
.ppn-chat-btn.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.ppn-chat-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 10px 28px -6px rgba(14,91,176,.6), 0 3px 10px rgba(0,0,0,.2);
}
.ppn-chat-btn svg {
  width: 26px; height: 26px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
  transition: opacity .18s, transform .18s;
  position: absolute;
}
.ppn-chat-btn .chat-icon-close {
  opacity: 0; transform: rotate(-90deg);
}
.ppn-chat-btn.is-open .chat-icon-chat {
  opacity: 0; transform: rotate(90deg);
}
.ppn-chat-btn.is-open .chat-icon-close {
  opacity: 1; transform: rotate(0);
}

/* ── Unread badge ────────────────────────────────────────────── */
.ppn-chat-badge {
  position: absolute;
  top: -4px; right: -4px;
  width: 18px; height: 18px;
  background: #E53935;
  border-radius: 50%;
  border: 2px solid #fff;
  font-size: 10px; font-weight: 700;
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transform: scale(0);
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
.ppn-chat-badge.is-visible {
  opacity: 1; transform: scale(1);
}

/* ── Chat window ─────────────────────────────────────────────── */
.ppn-chat-win {
  position: fixed;
  bottom: 154px;
  right: 28px;
  z-index: 3499;
  width: 340px;
  max-height: 500px;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 24px 60px -12px rgba(10,46,92,.28), 0 8px 24px -6px rgba(10,46,92,.16);
  overflow: hidden;
  transform-origin: bottom right;
  transform: scale(.92) translateY(12px);
  opacity: 0;
  pointer-events: none;
  transition: transform .28s cubic-bezier(.22,.7,.2,1), opacity .22s;
}
.ppn-chat-win.is-open {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ── Header ──────────────────────────────────────────────────── */
.ppn-chat-head {
  background: linear-gradient(135deg, #0A4A93 0%, #1E88E5 100%);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.ppn-chat-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,.3);
}
.ppn-chat-avatar svg {
  width: 20px; height: 20px;
  stroke: #fff; fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.ppn-chat-head-info { flex: 1; min-width: 0; }
.ppn-chat-head-name {
  color: #fff; font-weight: 700; font-size: .93rem;
  line-height: 1.2; white-space: nowrap;
}
.ppn-chat-head-status {
  color: rgba(255,255,255,.75);
  font-size: .76rem; display: flex; align-items: center; gap: 5px;
}
.ppn-chat-status-dot {
  width: 7px; height: 7px;
  background: #69F0AE;
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}
.ppn-chat-close {
  background: rgba(255,255,255,.15);
  border: none; color: #fff; cursor: pointer;
  border-radius: 8px; padding: 6px;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.ppn-chat-close:hover { background: rgba(255,255,255,.28); }
.ppn-chat-close svg {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round;
}

/* ── Messages area ───────────────────────────────────────────── */
.ppn-chat-msgs {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
  background: #F4F8FD;
}
.ppn-chat-msgs::-webkit-scrollbar { width: 4px; }
.ppn-chat-msgs::-webkit-scrollbar-thumb { background: #CBD8E8; border-radius: 4px; }

/* ── Bubble ──────────────────────────────────────────────────── */
.ppn-msg {
  display: flex;
  flex-direction: column;
  max-width: 82%;
}
.ppn-msg--bot { align-self: flex-start; }
.ppn-msg--user { align-self: flex-end; }

.ppn-msg__bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: .875rem;
  line-height: 1.55;
  word-break: break-word;
}
.ppn-msg--bot .ppn-msg__bubble {
  background: #fff;
  color: #1A2B3C;
  border-radius: 4px 16px 16px 16px;
  box-shadow: 0 1px 4px rgba(10,46,92,.09);
}
.ppn-msg--user .ppn-msg__bubble {
  background: linear-gradient(135deg, #0E5BB0 0%, #1E88E5 100%);
  color: #fff;
  border-radius: 16px 16px 4px 16px;
}

.ppn-msg__time {
  font-size: .7rem;
  color: #9BAEC0;
  margin-top: 3px;
  padding: 0 4px;
}
.ppn-msg--user .ppn-msg__time { text-align: right; }

/* ── Typing indicator ────────────────────────────────────────── */
.ppn-typing {
  display: flex;
  align-self: flex-start;
  background: #fff;
  border-radius: 4px 16px 16px 16px;
  padding: 12px 16px;
  gap: 5px;
  box-shadow: 0 1px 4px rgba(10,46,92,.09);
}
.ppn-typing span {
  width: 7px; height: 7px;
  background: #9BAEC0;
  border-radius: 50%;
  animation: typing-bounce .9s ease-in-out infinite;
}
.ppn-typing span:nth-child(2) { animation-delay: .16s; }
.ppn-typing span:nth-child(3) { animation-delay: .32s; }
@keyframes typing-bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: .5; }
  40% { transform: translateY(-6px); opacity: 1; }
}

/* ── Input bar ───────────────────────────────────────────────── */
.ppn-chat-foot {
  padding: 12px 14px;
  border-top: 1px solid #E4EBF3;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  background: #fff;
  flex-shrink: 0;
}
.ppn-chat-input {
  flex: 1;
  border: 1.5px solid #D2E6F8;
  border-radius: 20px;
  padding: 9px 16px;
  font-family: inherit;
  font-size: .875rem;
  color: #1A2B3C;
  outline: none;
  resize: none;
  min-height: 38px;
  max-height: 100px;
  line-height: 1.45;
  transition: border-color .2s;
  background: #F9FCFF;
}
.ppn-chat-input:focus {
  border-color: #1E88E5;
  background: #fff;
}
.ppn-chat-input::placeholder { color: #9BAEC0; }
.ppn-chat-send {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #0E5BB0 0%, #1E88E5 100%);
  color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform .18s, box-shadow .18s, opacity .18s;
}
.ppn-chat-send:hover { transform: scale(1.08); box-shadow: 0 4px 12px rgba(14,91,176,.4); }
.ppn-chat-send:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }
.ppn-chat-send svg {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round;
}

/* ── Powered by footer ───────────────────────────────────────── */
.ppn-chat-powered {
  text-align: center;
  font-size: .68rem;
  color: #9BAEC0;
  padding: 4px 0 8px;
  background: #fff;
  flex-shrink: 0;
}
.ppn-chat-powered a { color: #9BAEC0; text-decoration: underline; }

/* ── Mobile ──────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .ppn-chat-win {
    left: 0; right: 0; bottom: 0;
    width: 100%;
    max-height: 85dvh;
    border-radius: 22px 22px 0 0;
    transform-origin: bottom center;
  }
  .ppn-chat-btn { bottom: 72px; right: 20px; }
}

/* ── Dark mode ───────────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  .ppn-chat-win { background: #162032; }
  .ppn-chat-msgs { background: #0f1923; }
  .ppn-msg--bot .ppn-msg__bubble { background: #1d2f45; color: #d9eaf9; }
  .ppn-chat-foot { background: #162032; border-color: #1e2f44; }
  .ppn-chat-input { background: #1d2f45; border-color: #2a3f5a; color: #d9eaf9; }
  .ppn-chat-input:focus { background: #1d2f45; border-color: #1E88E5; }
  .ppn-chat-powered { background: #162032; }
  .ppn-typing { background: #1d2f45; }
}