/* ============================================================
   Nova Core — AI Assistant widget styles
   Uses the site's existing CSS variables (style.css :root)
   ============================================================ */

/* ── Floating button ──────────────────────────────────────── */
.nai-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 9000;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 1px solid var(--green-border);
  background: linear-gradient(160deg, var(--surface-3), var(--surface));
  color: var(--green);
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 0 0 var(--green-glow);
  transition: transform 0.2s ease, box-shadow 0.3s ease, color 0.2s ease;
}
.nai-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.55), 0 0 22px var(--green-glow);
}
.nai-fab svg { transition: opacity 0.2s ease, transform 0.3s ease; }
.nai-fab .nai-fab-close { position: absolute; opacity: 0; transform: rotate(-90deg); }
.nai-fab--active .nai-fab-open  { opacity: 0; transform: rotate(90deg); }
.nai-fab--active .nai-fab-close { opacity: 1; transform: rotate(0deg); }

/* subtle pulse to draw attention */
.nai-fab::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid var(--green);
  opacity: 0;
  animation: naiPulse 3.5s ease-out infinite;
  pointer-events: none;
}
@keyframes naiPulse {
  0%   { opacity: 0.5; transform: scale(1); }
  70%  { opacity: 0;   transform: scale(1.4); }
  100% { opacity: 0;   transform: scale(1.4); }
}

/* ── Panel ─────────────────────────────────────────────────── */
.nai-panel {
  position: fixed;
  right: 24px;
  bottom: 96px;
  z-index: 9000;
  width: 380px;
  max-width: calc(100vw - 32px);
  height: 540px;
  max-height: calc(100vh - 140px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.nai-panel--open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* ── Header ────────────────────────────────────────────────── */
.nai-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
}
.nai-head-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: naiBlink 2s ease-in-out infinite;
}
@keyframes naiBlink { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.nai-head-text { display: flex; flex-direction: column; line-height: 1.3; }
.nai-head-text strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 15px;
  color: var(--text);
}
.nai-head-text span { font-size: 12px; color: var(--muted); }

/* ── Messages ──────────────────────────────────────────────── */
.nai-msgs {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--green-border) transparent;
}
.nai-msgs::-webkit-scrollbar { width: 6px; }
.nai-msgs::-webkit-scrollbar-thumb { background: var(--green-border); border-radius: 3px; }

.nai-msg {
  max-width: 85%;
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.nai-msg--bot {
  align-self: flex-start;
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.nai-msg--user {
  align-self: flex-end;
  background: var(--green-dim);
  border: 1px solid var(--green-border);
  color: var(--text);
  border-bottom-right-radius: 4px;
}

/* typing indicator */
.nai-typing { display: flex; gap: 4px; align-items: center; }
.nai-typing span {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--muted);
  animation: naiDot 1.2s infinite ease-in-out;
}
.nai-typing span:nth-child(2) { animation-delay: 0.2s; }
.nai-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes naiDot { 0%,60%,100% { opacity: 0.3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }

/* ── Suggestion chips ──────────────────────────────────────── */
.nai-suggest {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 0 16px 12px;
}
.nai-chip {
  font-size: 12.5px;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid var(--green-border);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}
.nai-chip:hover { background: var(--green-glow); transform: translateY(-1px); }

/* ── Input ─────────────────────────────────────────────────── */
.nai-input {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
}
.nai-input input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border-bright);
  border-radius: 12px;
  padding: 11px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}
.nai-input input:focus { border-color: var(--green-border); }
.nai-input input:disabled { opacity: 0.5; }
.nai-input button {
  width: 44px;
  flex-shrink: 0;
  border: none;
  border-radius: 12px;
  background: var(--green);
  color: #021109;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: opacity 0.15s ease, transform 0.1s ease;
}
.nai-input button:hover:not(:disabled) { transform: translateY(-1px); }
.nai-input button:disabled { opacity: 0.4; cursor: default; }

/* ── Mobile ────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .nai-panel {
    right: 12px;
    left: 12px;
    bottom: 88px;
    width: auto;
    height: calc(100vh - 120px);
  }
  .nai-fab { right: 16px; bottom: 16px; }
}