/* ── Variables (match portfolio dark theme) ── */
#pm-chat-fab,
#pm-chat-popup {
  --pm-bg: #0b0f19;
  --pm-card: #121a2b;
  --pm-border: rgba(122, 162, 255, 0.2);
  --pm-text: #e8edf7;
  --pm-muted: #a9b4c7;
  --pm-accent: #7aa2ff;
  --pm-accent2: #5b82e0;
  --pm-green: #22c55e;
  --pm-radius: 16px;
}

/* ── FAB ── */
#pm-chat-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pm-accent), var(--pm-accent2));
  box-shadow: 0 4px 20px rgba(91, 130, 224, 0.45);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  z-index: 9998;
  transition: transform 0.2s, box-shadow 0.2s;
}
#pm-chat-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(91, 130, 224, 0.6);
}

/* ── Popup ── */
#pm-chat-popup {
  position: fixed;
  bottom: 5vh;
  left: 50%;
  width: 90vw;
  max-width: 1200px;
  height: 88vh;
  display: flex;
  flex-direction: column;
  background: var(--pm-card);
  border: 1px solid var(--pm-border);
  border-radius: var(--pm-radius);
  box-shadow: 0 12px 60px rgba(0, 0, 0, 0.65);
  z-index: 9999;
  overflow: hidden;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
#pm-chat-popup.pm-open {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ── Header ── */
#pm-chat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #1e2d52, #162245);
  border-bottom: 1px solid var(--pm-border);
  flex-shrink: 0;
}
#pm-chat-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pm-accent), var(--pm-accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
#pm-chat-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--pm-text);
  line-height: 1.2;
}
#pm-chat-subtitle {
  font-size: 0.72rem;
  color: var(--pm-muted);
}
#pm-chat-close {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--pm-muted);
  font-size: 1rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  line-height: 1;
  transition: color 0.15s;
}
#pm-chat-close:hover { color: var(--pm-text); }

/* ── Messages ── */
#pm-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--pm-bg);
  scrollbar-width: thin;
  scrollbar-color: rgba(122, 162, 255, 0.2) transparent;
  overscroll-behavior: contain;
}
.pm-msg {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.83rem;
  line-height: 1.6;
  max-width: 88%;
  word-break: break-word;
}
.pm-msg.pm-bot {
  align-self: flex-start;
  background: rgba(122, 162, 255, 0.1);
  border: 1px solid rgba(122, 162, 255, 0.2);
  color: var(--pm-text);
  border-bottom-left-radius: 3px;
}
.pm-msg.pm-user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--pm-accent), var(--pm-accent2));
  color: #0b0f19;
  font-weight: 600;
  border-bottom-right-radius: 3px;
}

/* ── Bot response wrapper (stage pill + bubble + entity bar) ── */
.pm-bot-wrapper {
  display: flex;
  flex-direction: column;
  align-self: flex-start;
  max-width: 92%;
  gap: 6px;
}
.pm-bot-wrapper .pm-msg.pm-bot {
  max-width: 100%;
  align-self: stretch;
}

/* ── Stage bar ── */
.pm-stage-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px 5px 10px;
  border-radius: 20px;
  font-size: 0.74rem;
  font-weight: 500;
  background: rgba(122, 162, 255, 0.1);
  border: 1px solid var(--pm-accent);
  color: var(--pm-accent);
  box-shadow: 0 0 10px rgba(122, 162, 255, 0.12);
}

.pm-pill-spinner {
  width: 11px;
  height: 11px;
  border: 1.5px solid rgba(122, 162, 255, 0.3);
  border-top-color: var(--pm-accent);
  border-radius: 50%;
  animation: pm-spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes pm-spin { to { transform: rotate(360deg); } }

/* ── Entity chip bar ── */
.pm-entity-bar {
  display: none;
  flex-wrap: wrap;
  gap: 4px;
  padding-top: 6px;
  border-top: 1px solid var(--pm-border);
}

.pm-chat-chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  background: rgba(122, 162, 255, 0.08);
  border: 1px solid rgba(122, 162, 255, 0.25);
  border-radius: 12px;
  font-size: 0.69rem;
  color: var(--pm-accent);
  animation: pm-chip-in 0.2s ease both;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}
.pm-chat-chip.pm-chip-done {
  background: rgba(34, 197, 94, 0.08);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--pm-green);
}

@keyframes pm-chip-in {
  from { opacity: 0; transform: translateX(-5px); }
  to   { opacity: 1; transform: none; }
}

/* ── Hidden util ── */
.pm-hidden { display: none !important; }

/* ── Streaming cursor via ::after ── */
.pm-streaming .pm-content::after {
  content: '▍';
  color: var(--pm-accent);
  animation: pm-blink 0.8s step-end infinite;
}

/* ── Markdown content ── */
.pm-content { min-height: 1.2em; }
#pm-chat-popup .pm-content p { margin: 0.45em 0; }
#pm-chat-popup .pm-content p:first-child { margin-top: 0; }
#pm-chat-popup .pm-content p:last-child  { margin-bottom: 0; }
#pm-chat-popup .pm-content ul,
#pm-chat-popup .pm-content ol { padding-left: 1.4em; margin: 0.45em 0; }
#pm-chat-popup .pm-content li { margin: 0.2em 0; }
#pm-chat-popup .pm-content code {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--pm-border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.84em;
  font-family: 'Cascadia Code', 'Fira Code', monospace;
}
#pm-chat-popup .pm-content pre {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--pm-border);
  border-radius: 8px;
  padding: 10px 12px;
  overflow-x: auto;
  margin: 0.6em 0;
}
#pm-chat-popup .pm-content pre code { background: none; border: none; padding: 0; }
#pm-chat-popup .pm-content strong { color: #c8d8ff; }
#pm-chat-popup .pm-content h1,
#pm-chat-popup .pm-content h2,
#pm-chat-popup .pm-content h3 { color: #a8c8ff; margin: 0.7em 0 0.3em; font-size: 0.88rem; }
#pm-chat-popup .pm-content blockquote {
  border-left: 3px solid var(--pm-accent);
  padding-left: 10px;
  color: var(--pm-muted);
  margin: 0.5em 0;
}
#pm-chat-popup .pm-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 0.6em 0;
  font-size: 0.8em;
}
#pm-chat-popup .pm-content th,
#pm-chat-popup .pm-content td { border: 1px solid var(--pm-border); padding: 4px 8px; }
#pm-chat-popup .pm-content th { background: rgba(0, 0, 0, 0.3); color: var(--pm-accent); }

/* ── Blink animation (shared by streaming cursor) ── */
@keyframes pm-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ── Input row ── */
#pm-chat-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(122, 162, 255, 0.05);
  border-top: 1px solid var(--pm-border);
  flex-shrink: 0;
}
#pm-chat-input {
  flex: 1;
  background: rgba(122, 162, 255, 0.08);
  border: 1px solid var(--pm-border);
  border-radius: 20px;
  padding: 8px 14px;
  font-size: 0.83rem;
  color: var(--pm-text);
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
}
#pm-chat-input::placeholder { color: var(--pm-muted); }
#pm-chat-input:focus { border-color: rgba(122, 162, 255, 0.5); }
#pm-chat-send {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pm-accent), var(--pm-accent2));
  border: none;
  color: #0b0f19;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity 0.15s;
}
#pm-chat-send:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Mobile ── */
@media (max-width: 600px) {
  #pm-chat-popup {
    width: 95vw;
    height: 88vh;
    bottom: 5vh;
    max-width: none;
  }
  #pm-chat-fab { right: 16px; bottom: 20px; }
}