:root{
  --pscb-accent: #7C3AED;
  --pscb-bg: #0B0F14;
  --pscb-ivory: #F7F4EF;
}

.pscb,
.pscb *{ box-sizing: border-box; }

.pscb{
  position: fixed;
  bottom: 18px;
  z-index: 9999;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, Arial, sans-serif;
}
.pscb[data-position="right"]{ right: 18px; }
.pscb[data-position="left"]{ left: 18px; }

.pscb-fab{
  width: 54px;
  height: 54px;
  border-radius: 999px;
  border: 1px solid rgb(124 58 237 / .35);
  background: var(--pscb-accent);
  color: #0B0F14;
  box-shadow: 0 18px 45px rgb(124 58 237 / .22);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: transform .18s ease, box-shadow .18s ease;
}
.pscb-fab:hover{
  transform: translateY(-1px);
  box-shadow: 0 22px 60px rgb(124 58 237 / .30);
}
.pscb-fab__icon{ font-weight: 950; font-size: 16px; letter-spacing: .02em; }
.pscb-fab__logo{
  width: 26px;
  height: 26px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}
.pscb-fab__dot{
  position:absolute;
  top: 10px;
  right: 10px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--pscb-accent);
  box-shadow: 0 0 0 4px rgba(124,58,237,.18);
}

.pscb-panel{
  width: min(372px, calc(100vw - 36px));
  border-radius: 18px;
  border: 1px solid rgba(11,15,20,.14);
  background: rgba(247,244,239,.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 70px rgba(11,15,20,.20);
  overflow: hidden;
  position: absolute;
  bottom: 64px;
  right: 0;
  isolation: isolate;
  transform: translateY(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
}
.pscb[data-position="left"] .pscb-panel{ left: 0; right:auto; }
.pscb-panel.is-open{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.pscb-header{
  background:
    radial-gradient(520px 220px at 15% 20%, rgba(124,58,237,.20), transparent 60%),
    linear-gradient(120deg, rgba(11,15,20,.92), rgba(11,15,20,.84));
  color: var(--pscb-ivory);
  padding: 12px 14px;
  display:flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.pscb-title__brand{
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: 12px;
  opacity: .9;
}
.pscb-title__sub{
  font-weight: 700;
  font-size: 13px;
}
.pscb-close{
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.08);
  color: var(--pscb-ivory);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

.pscb-body{
  padding: 12px 14px;
  max-height: min(440px, 60vh);
  overflow: auto;
  display:flex;
  flex-direction: column;
  gap: 10px;
}

.pscb-msg{
  border: 1px solid rgba(11,15,20,.10);
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(255,255,255,.60);
  max-width: 92%;
}
.pscb-msg--bot{
  border-left: 3px solid rgba(124,58,237,.70);
  align-self: flex-start;
}
.pscb-msg--user{
  background: rgba(11,15,20,.92);
  border-color: rgba(255,255,255,.12);
  align-self: flex-end;
}
.pscb-msg--user .pscb-text{ color: var(--pscb-ivory); }
.pscb-text{ color:#0B0F14; font-size: 14px; line-height: 1.35; }

.pscb-choices{ display:flex; flex-wrap:wrap; gap: 8px; margin-top: 10px; }
.pscb-chip{
  appearance:none;
  border: 1px solid rgba(11,15,20,.14);
  background: rgba(255,255,255,.55);
  border-radius: 999px;
  padding: 8px 10px;
  font-weight: 800;
  font-size: 13px;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  color:#0B0F14;
}
.pscb-chip:hover{
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(11,15,20,.10);
  border-color: rgb(124 58 237 / .45);
}

.pscb-footer{
  padding: 10px 14px 12px 14px;
  border-top: 1px solid rgba(11,15,20,.10);
  background: rgba(255,255,255,.35);
}
.pscb-inputRow{ display:flex; gap:8px; }
.pscb-input{
  flex:1;
  min-height: 42px;
  border-radius: 999px;
  border: 1px solid rgba(11,15,20,.14);
  background: rgba(255,255,255,.75);
  padding: 10px 12px;
  font-weight: 650;
}
.pscb-send{
  min-height: 42px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--pscb-accent);
  color: #0B0F14;
  font-weight: 950;
  padding: 0 14px;
  cursor:pointer;
}
.pscb-note{ margin-top: 8px; color: rgba(11,15,20,.60); font-size: 12px; }

.pscb-dots{ display:inline-flex; gap:4px; margin-right: 6px; vertical-align: middle; }
.pscb-dots i{
  width: 6px; height: 6px; border-radius: 999px;
  background: rgba(11,15,20,.35);
  display:inline-block;
  animation: pscbDot 1.05s infinite ease-in-out;
}
.pscb-dots i:nth-child(2){ animation-delay: .12s; }
.pscb-dots i:nth-child(3){ animation-delay: .24s; }
@keyframes pscbDot{ 0%,80%,100%{ transform: translateY(0); opacity: .45; } 40%{ transform: translateY(-3px); opacity:.9; } }