/* ========== AI DINING ADVISOR — floating button + modal ========== */

/* Floating action button */
.ai-assistant-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 210;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 10px 14px;
  border: none;
  border-radius: 32px;
  background: var(--ink);
  color: var(--gold);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,0,0,0.28);
  transition: bottom 0.3s, transform 0.15s, box-shadow 0.15s;
  font-family: inherit;
}
.ai-assistant-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.34);
}
.ai-assistant-fab--lifted { bottom: 92px; }
.ai-assistant-fab-icon { font-size: 20px; line-height: 1; }
.ai-assistant-fab-label { font-size: 10px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }

/* Overlay */
.ai-assistant-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 400;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 0;
  animation: aiFadeIn 0.2s ease;
}
@keyframes aiFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Modal panel */
.ai-assistant-modal {
  background: var(--cream);
  color: var(--ink);
  width: 100%;
  max-width: 520px;
  max-height: 88vh;
  border-radius: 18px 18px 0 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: aiSlideUp 0.28s cubic-bezier(0.22,1,0.36,1);
  box-shadow: 0 -8px 40px rgba(0,0,0,0.18);
}
@media (min-width: 560px) {
  .ai-assistant-overlay { align-items: center; padding-bottom: 0; }
  .ai-assistant-modal { border-radius: 18px; max-height: 82vh; }
}
@keyframes aiSlideUp { from { transform: translateY(40px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* Header */
.ai-assistant-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  flex-shrink: 0;
  background: var(--ink);
  color: var(--gold);
}
.ai-assistant-title-icon { font-size: 20px; flex-shrink: 0; }
.ai-assistant-title {
  margin: 0;
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  font-weight: 700;
  flex: 1;
  letter-spacing: 0.01em;
}
.ai-assistant-close {
  background: none;
  border: none;
  color: var(--gold);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  opacity: 0.8;
  transition: opacity 0.15s;
  flex-shrink: 0;
}
.ai-assistant-close:hover { opacity: 1; }

/* Body */
.ai-assistant-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Input state */
.ai-assistant-input-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
  opacity: 0.75;
}
.ai-assistant-textarea {
  width: 100%;
  box-sizing: border-box;
  font-family: inherit;
  font-size: 0.97rem;
  line-height: 1.55;
  padding: 12px 14px;
  border: 1.5px solid rgba(0,0,0,0.15);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  resize: vertical;
  min-height: 100px;
  transition: border-color 0.15s;
}
.ai-assistant-textarea:focus { outline: none; border-color: var(--gold); }
.ai-assistant-textarea::placeholder { color: #aaa; }

/* Loading */
.ai-assistant-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 32px 0;
  color: var(--ink);
  opacity: 0.7;
  font-size: 0.95rem;
}
.ai-assistant-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(196,163,90,0.25);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: aiSpin 0.8s linear infinite;
}
@keyframes aiSpin { to { transform: rotate(360deg); } }

/* Result state */
.ai-assistant-message {
  font-size: 0.97rem;
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
  padding: 14px 16px;
  background: rgba(196,163,90,0.1);
  border-left: 3px solid var(--gold);
  border-radius: 0 8px 8px 0;
}
.ai-assistant-cart-preview {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(0,0,0,0.09);
  border-radius: 10px;
  overflow: hidden;
}
.ai-assistant-cart-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 0.93rem;
}
.ai-assistant-cart-item:last-child { border-bottom: none; }
.ai-assistant-remove-btn {
  flex-shrink: 0;
  background: none;
  border: none;
  color: #aaa;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 4px 0 0;
  transition: color 0.15s;
}
.ai-assistant-remove-btn:hover { color: #c0392b; }
.ai-assistant-cart-name { flex: 1; font-weight: 500; }
.ai-assistant-cart-hint {
  margin: 0;
  font-size: 0.82rem;
  color: #999;
  text-align: center;
}
.ai-assistant-cart-qty { color: #888; font-size: 0.88rem; white-space: nowrap; }
.ai-assistant-cart-price { font-weight: 600; white-space: nowrap; min-width: 52px; text-align: right; }
.ai-assistant-cart-total {
  display: flex;
  justify-content: space-between;
  padding: 10px 14px 0;
  font-size: 0.9rem;
  font-weight: 700;
  border-top: 1.5px solid rgba(0,0,0,0.1);
  color: var(--ink);
}

/* Error */
.ai-assistant-error {
  margin: 0;
  font-size: 0.88rem;
  color: #c0392b;
  padding: 10px 14px;
  background: rgba(192,57,43,0.07);
  border-radius: 8px;
}

/* Action buttons */
.ai-assistant-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.ai-assistant-btn-primary {
  flex: 1;
  padding: 13px 20px;
  border: none;
  border-radius: 8px;
  background: var(--gold);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
  min-width: 160px;
}
.ai-assistant-btn-primary:hover { background: #d4b76a; }
.ai-assistant-btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
.ai-assistant-btn-ghost {
  padding: 13px 18px;
  border: 1.5px solid rgba(0,0,0,0.15);
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.ai-assistant-btn-ghost:hover { background: rgba(0,0,0,0.05); }

/* Dark theme */
[data-theme="dark"] .ai-assistant-modal { background: #1e2220; color: #e8e6e4; }
[data-theme="dark"] .ai-assistant-fab { background: #2a2826; }
[data-theme="dark"] .ai-assistant-input-label { color: #e8e6e4; }
[data-theme="dark"] .ai-assistant-textarea { background: #2a2826; color: #e8e6e4; border-color: rgba(255,255,255,0.12); }
[data-theme="dark"] .ai-assistant-textarea::placeholder { color: #666; }
[data-theme="dark"] .ai-assistant-message { background: rgba(196,163,90,0.08); color: #e8e6e4; }
[data-theme="dark"] .ai-assistant-cart-preview { border-color: rgba(255,255,255,0.1); }
[data-theme="dark"] .ai-assistant-cart-item { border-color: rgba(255,255,255,0.07); color: #e8e6e4; }
[data-theme="dark"] .ai-assistant-cart-qty { color: #aaa; }
[data-theme="dark"] .ai-assistant-cart-total { border-color: rgba(255,255,255,0.12); color: #e8e6e4; }
[data-theme="dark"] .ai-assistant-btn-ghost { border-color: rgba(255,255,255,0.2); color: #e8e6e4; }
[data-theme="dark"] .ai-assistant-btn-ghost:hover { background: rgba(255,255,255,0.07); }
[data-theme="dark"] .ai-assistant-loading { color: #e8e6e4; }