/**
 * Positronic AI Assistant — Widget Styles
 *
 * Fully self-contained: does NOT depend on page :root variables.
 * Works on both dark-theme and light-theme pages (whitepaper, critics).
 * All selectors scoped with .posi-assistant-* prefix.
 */

/* ── Scoped custom properties ───────────────────── */
.posi-assistant-widget {
  --pa-blue: #0080FF;
  --pa-cyan: #00E5FF;
  --pa-dark: #0D1B2A;
  --pa-darker: #060D1A;
  --pa-surface: #0A1628;
  --pa-card: rgba(255, 255, 255, 0.05);
  --pa-border: rgba(0, 229, 255, 0.15);
  --pa-text: #ffffff;
  --pa-text-dim: #B0B8C0;
  --pa-text-muted: #6a7a8a;
  --pa-input-bg: rgba(255, 255, 255, 0.06);
  --pa-input-border: rgba(255, 255, 255, 0.12);
  --pa-radius: 14px;
  --pa-radius-sm: 8px;
  --pa-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --pa-font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --pa-transition: 0.25s ease;
  --pa-focus: #00E5FF;
  --pa-success: #4caf50;
}

/* ── Focus ring (shared) ────────────────────────── */
.posi-assistant-widget *:focus-visible {
  outline: 2px solid var(--pa-focus);
  outline-offset: 2px;
}

/* ── Trigger button ─────────────────────────────── */
.posi-assistant-trigger {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--pa-border);
  background: var(--pa-dark);
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 128, 255, 0.25), 0 0 40px rgba(0, 229, 255, 0.1);
  transition: transform var(--pa-transition), box-shadow var(--pa-transition);
  animation: posi-trigger-pulse 3s ease-in-out infinite;
}
.posi-assistant-trigger:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 30px rgba(0, 128, 255, 0.4), 0 0 60px rgba(0, 229, 255, 0.2);
}
.posi-assistant-trigger img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  pointer-events: none;
}
@keyframes posi-trigger-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(0, 128, 255, 0.25), 0 0 40px rgba(0, 229, 255, 0.1); }
  50% { box-shadow: 0 4px 30px rgba(0, 128, 255, 0.4), 0 0 60px rgba(0, 229, 255, 0.2); }
}

/* ── Panel ──────────────────────────────────────── */
.posi-assistant-panel {
  position: fixed;
  bottom: 92px;
  right: 24px;
  z-index: 10001;
  width: 400px;
  max-height: 80vh;
  background: var(--pa-dark);
  border: 1px solid var(--pa-border);
  border-radius: 16px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 60px rgba(0, 128, 255, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: var(--pa-font);
  color: var(--pa-text);
  opacity: 0;
  transform: translateY(16px) scale(0.96);
  pointer-events: none;
  transition: opacity var(--pa-transition), transform var(--pa-transition);
}
.posi-assistant-panel[data-open="true"] {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* ── Header ─────────────────────────────────────── */
.posi-assistant-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--pa-border);
  flex-shrink: 0;
}
.posi-assistant-title {
  font-family: var(--pa-font-heading);
  font-size: 15px;
  font-weight: 600;
  color: var(--pa-cyan);
  margin: 0;
  letter-spacing: 0.3px;
}
.posi-assistant-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--pa-border);
  background: transparent;
  color: var(--pa-text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  line-height: 1;
  padding: 0;
  transition: background var(--pa-transition), color var(--pa-transition);
}
.posi-assistant-close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--pa-text);
}

/* ── Messages area ──────────────────────────────── */
.posi-assistant-messages {
  flex: 1;
  overflow-y: auto;
  padding: 12px 18px;
  min-height: 60px;
  max-height: 340px;
  scroll-behavior: smooth;
}

/* Message bubbles */
.posi-assistant-msg {
  margin-bottom: 14px;
  animation: posi-msg-in 0.25s ease;
}
.posi-assistant-msg-q {
  text-align: right;
}
.posi-assistant-msg-q span {
  display: inline-block;
  background: var(--pa-blue);
  color: #fff;
  padding: 8px 14px;
  border-radius: 14px 14px 4px 14px;
  font-size: 13px;
  max-width: 85%;
  text-align: left;
}
.posi-assistant-msg-a {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.posi-assistant-msg-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}
.posi-assistant-msg-body {
  background: var(--pa-card);
  border: 1px solid var(--pa-border);
  border-radius: 4px 14px 14px 14px;
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.55;
  max-width: 85%;
  color: var(--pa-text);
}
.posi-assistant-msg-body p { margin: 0 0 8px; }
.posi-assistant-msg-body p:last-child { margin-bottom: 0; }
.posi-assistant-msg-body ul,
.posi-assistant-msg-body ol { margin: 4px 0 8px 18px; padding: 0; }
.posi-assistant-msg-body li { margin-bottom: 3px; font-size: 13px; }
.posi-assistant-msg-body pre {
  background: var(--pa-darker);
  border: 1px solid var(--pa-border);
  border-radius: 6px;
  padding: 8px 10px;
  overflow-x: auto;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
}
.posi-assistant-msg-body code {
  background: rgba(0, 229, 255, 0.08);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
}
.posi-assistant-msg-body pre code {
  background: none;
  padding: 0;
}
.posi-assistant-msg-body a {
  color: var(--pa-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.3);
  transition: border-color var(--pa-transition);
}
.posi-assistant-msg-body a:hover {
  border-color: var(--pa-cyan);
}
.posi-assistant-msg-body strong {
  color: #fff;
}
@keyframes posi-msg-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Typing indicator */
.posi-assistant-typing {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 14px;
}
.posi-assistant-dots {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--pa-card);
  border: 1px solid var(--pa-border);
  border-radius: 4px 14px 14px 14px;
}
.posi-assistant-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pa-text-dim);
  animation: posi-dot-bounce 1.2s ease-in-out infinite;
}
.posi-assistant-dot:nth-child(2) { animation-delay: 0.15s; }
.posi-assistant-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes posi-dot-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

/* ── Suggestions (accordion) ───────────────────── */
.posi-assistant-suggestions {
  padding: 6px 12px 6px;
  border-top: 1px solid var(--pa-border);
  flex-shrink: 0;
  max-height: 240px;
  overflow-y: auto;
}

/* Category header (clickable accordion toggle) */
.posi-assistant-cat-header {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 6px 10px;
  margin: 1px 0;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--pa-text-dim);
  font-family: var(--pa-font-heading);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  cursor: pointer;
  transition: background var(--pa-transition), color var(--pa-transition), border-color var(--pa-transition);
}
.posi-assistant-cat-header:hover {
  background: rgba(0, 229, 255, 0.05);
  color: var(--pa-cyan);
  border-color: rgba(0, 229, 255, 0.12);
}
.posi-assistant-cat-header[aria-expanded="true"] {
  color: var(--pa-cyan);
  background: rgba(0, 229, 255, 0.06);
  border-color: rgba(0, 229, 255, 0.15);
}
.posi-assistant-cat-header-label {
  flex: 1;
  text-align: left;
}
.posi-assistant-cat-count {
  font-size: 10px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  color: var(--pa-text-muted);
  padding: 1px 6px;
  border-radius: 10px;
  margin: 0 8px 0 4px;
  letter-spacing: 0;
  text-transform: none;
}
.posi-assistant-cat-chevron {
  font-size: 10px;
  opacity: 0.6;
  transition: transform var(--pa-transition);
}

/* Chips container */
.posi-assistant-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 6px 4px 8px 28px;
}
.posi-assistant-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: 16px;
  border: 1px solid var(--pa-border);
  background: var(--pa-card);
  color: var(--pa-text-dim);
  font-family: var(--pa-font);
  font-size: 11.5px;
  cursor: pointer;
  transition: background var(--pa-transition), color var(--pa-transition), border-color var(--pa-transition);
  white-space: nowrap;
}
.posi-assistant-chip:hover {
  background: rgba(0, 229, 255, 0.08);
  color: var(--pa-cyan);
  border-color: rgba(0, 229, 255, 0.3);
}

/* ── Input area ─────────────────────────────────── */
.posi-assistant-input-area {
  display: flex;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--pa-border);
  flex-shrink: 0;
}
.posi-assistant-input {
  flex: 1;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--pa-input-border);
  background: var(--pa-input-bg);
  color: var(--pa-text);
  font-family: var(--pa-font);
  font-size: 13px;
  outline: none;
  transition: border-color var(--pa-transition);
}
.posi-assistant-input::placeholder {
  color: var(--pa-text-muted);
}
.posi-assistant-input:focus {
  border-color: var(--pa-cyan);
}
.posi-assistant-send {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--pa-border);
  background: var(--pa-blue);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  padding: 0;
  flex-shrink: 0;
  transition: background var(--pa-transition);
}
.posi-assistant-send:hover {
  background: #0070e0;
}

/* ── Welcome message ────────────────────────────── */
.posi-assistant-welcome {
  font-size: 13px;
  color: var(--pa-text-dim);
  line-height: 1.5;
  margin-bottom: 10px;
}

/* ── Scrollbar ──────────────────────────────────── */
.posi-assistant-messages::-webkit-scrollbar,
.posi-assistant-suggestions::-webkit-scrollbar {
  width: 5px;
}
.posi-assistant-messages::-webkit-scrollbar-track,
.posi-assistant-suggestions::-webkit-scrollbar-track {
  background: transparent;
}
.posi-assistant-messages::-webkit-scrollbar-thumb,
.posi-assistant-suggestions::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

/* ── Reduced motion ─────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .posi-assistant-trigger { animation: none; }
  .posi-assistant-panel { transition: none; }
  .posi-assistant-dot { animation: none; opacity: 0.6; }
  .posi-assistant-msg { animation: none; }
  .posi-assistant-trigger:hover { transform: none; }
}

/* ── Mobile responsive ──────────────────────────── */
@media (max-width: 480px) {
  .posi-assistant-trigger {
    width: 48px;
    height: 48px;
    bottom: 16px;
    right: 16px;
  }
  .posi-assistant-trigger img {
    width: 30px;
    height: 30px;
  }
  .posi-assistant-panel {
    width: calc(100vw - 16px);
    right: 8px;
    bottom: 76px;
    max-height: 75vh;
    border-radius: 14px;
  }
}