/* ============================================================
   ai-assistant.css — "Ask AI" integration for all calculators
   Injects a compact AI panel beneath each result rail.
   ============================================================ */

/* ── Trigger button ─────────────────────────────────────────── */
.ask-ai-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 100%;
  padding: 11px 16px;
  margin-top: var(--s4);
  border-radius: var(--r-md);
  font-size: var(--step-sm);
  font-weight: 600;
  color: var(--accent-strong);
  background: var(--accent-dim);
  border: 1.5px solid oklch(.6 .19 32 / .25);
  cursor: pointer;
  transition: background .15s var(--ease), border-color .15s, transform .12s;
  font-family: inherit;
}
.ask-ai-btn:hover {
  background: oklch(.6 .19 32 / .18);
  border-color: oklch(.6 .19 32 / .45);
  transform: translateY(-1px);
}
.ask-ai-btn:active { transform: scale(.97); }
.ask-ai-btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.ask-ai-btn .ask-ai-sparkle {
  font-size: .9em;
  line-height: 1;
}

/* ── Inline AI panel ────────────────────────────────────────── */
.calc-ai-panel {
  margin-top: var(--s4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  animation: aiPanelIn .22s var(--ease);
}
@keyframes aiPanelIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ── Panel header ────────────────────────────────────────────── */
.calc-ai-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s3) var(--s4);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-soft);
  gap: var(--s3);
}
.calc-ai-head-left {
  display: flex;
  align-items: center;
  gap: var(--s2);
}
.calc-ai-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ok);
  flex-shrink: 0;
}
.calc-ai-dot.loading {
  background: var(--warn);
  animation: ai-pulse .9s ease-in-out infinite;
}
@keyframes ai-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .35; }
}
.calc-ai-title {
  font-size: .8rem;
  font-weight: 600;
  color: var(--ink-2);
}
.calc-ai-close {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 7px;
  color: var(--ink-3);
  cursor: pointer;
  transition: background .12s, color .12s;
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
}
.calc-ai-close:hover { background: var(--surface); color: var(--ink); }
.calc-ai-close svg { width: 14px; height: 14px; }

/* ── Response body ───────────────────────────────────────────── */
.calc-ai-body {
  padding: var(--s4);
  font-size: var(--step-sm);
  line-height: 1.7;
  color: var(--ink);
  max-height: 340px;
  overflow-y: auto;
}
.calc-ai-body::-webkit-scrollbar { width: 5px; }
.calc-ai-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── Typing dots ─────────────────────────────────────────────── */
.calc-ai-typing {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: var(--s3) 0;
}
.calc-ai-typing span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ink-3);
  animation: ai-bounce .85s ease-in-out infinite;
}
.calc-ai-typing span:nth-child(2) { animation-delay: .14s; }
.calc-ai-typing span:nth-child(3) { animation-delay: .28s; }
@keyframes ai-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: .5; }
  30%           { transform: translateY(-5px); opacity: 1; }
}

/* ── Error state ─────────────────────────────────────────────── */
.calc-ai-error {
  display: flex;
  align-items: flex-start;
  gap: var(--s2);
  color: var(--danger);
  font-size: var(--step-sm);
  padding: var(--s3) 0;
}
.calc-ai-error svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 2px; }

/* ── Markdown inside response ────────────────────────────────── */
.calc-ai-body strong { font-weight: 600; }
.calc-ai-body em { font-style: italic; }
.calc-ai-body code {
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: .8em;
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--accent-strong);
}
.calc-ai-body ul, .calc-ai-body ol {
  padding-left: var(--s5);
  display: flex; flex-direction: column; gap: 3px;
  margin: var(--s2) 0;
}
.calc-ai-body li { line-height: 1.6; }
.calc-ai-body p { margin: var(--s2) 0; }
.calc-ai-body p:first-child { margin-top: 0; }
.calc-ai-body p:last-child { margin-bottom: 0; }
.calc-ai-body h3, .calc-ai-body h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--step-base);
  letter-spacing: -.02em;
  margin: var(--s3) 0 var(--s2);
}

/* ── Footer (copy + follow-up) ───────────────────────────────── */
.calc-ai-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  padding: var(--s3) var(--s4);
  border-top: 1px solid var(--border-soft);
  background: var(--surface-2);
  flex-wrap: wrap;
}
.calc-ai-copy-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: .75rem;
  font-weight: 500;
  color: var(--ink-3);
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  cursor: pointer;
  transition: all .13s var(--ease);
  font-family: inherit;
}
.calc-ai-copy-btn:hover {
  color: var(--accent-strong);
  border-color: var(--accent);
  background: var(--accent-dim);
}
.calc-ai-copy-btn svg { width: 11px; height: 11px; }

.calc-ai-chat-link {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: .75rem;
  font-weight: 500;
  color: var(--ink-3);
  text-decoration: none;
  transition: color .13s;
}
.calc-ai-chat-link:hover { color: var(--accent-strong); }
.calc-ai-chat-link svg { width: 12px; height: 12px; }

/* ── No-result placeholder ───────────────────────────────────── */
.calc-ai-placeholder {
  color: var(--ink-3);
  font-size: var(--step-sm);
  padding: var(--s3) 0;
  font-style: italic;
}