/* ============================================================
   SHARED AI TOOL STYLES — used by all AI-powered tools
   Uses same design tokens as the theme's :root
   ============================================================ */

.ai-tool-wrap {
  max-width: 780px;
  margin: 40px auto 60px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 40px 40px;
}

.ai-tool-header {
  margin-bottom: 28px;
}

.ai-tool-header h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
}

.ai-tool-header p {
  font-family: var(--font-ui);
  font-size: 0.925rem;
  color: var(--ink-3);
  margin: 0;
  line-height: 1.6;
}

.ai-field-group {
  margin-bottom: 18px;
}

.ai-field-group label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 6px;
}

.ai-field-group textarea,
.ai-field-group input[type="text"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.925rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color 0.18s, background 0.18s;
  box-sizing: border-box;
  line-height: 1.5;
}

.ai-field-group select {
  width: 100%;
  padding: 10px 38px 10px 14px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: 0.925rem;
  color: var(--ink);
  background: var(--bg);
  transition: border-color 0.18s, background 0.18s;
  box-sizing: border-box;
  line-height: 1;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%239a9a9a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px;
}

.ai-field-group textarea:focus,
.ai-field-group input:focus,
.ai-field-group select:focus {
  outline: none;
  border-color: var(--red);
  background: var(--white);
}

.ai-field-group textarea {
  min-height: 120px;
  resize: vertical;
}

.ai-field-group textarea.ai-tall {
  min-height: 200px;
}

.ai-field-row {
  display: flex;
  gap: 16px;
}

.ai-field-row .ai-field-group {
  flex: 1;
}

.ai-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: var(--radius-xl);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.925rem;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  width: 100%;
  line-height: 1.4;
}

.ai-btn:hover {
  background: var(--red-hover);
}

.ai-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ai-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Loading state */
.ai-loading {
  display: none;
  text-align: center;
  padding: 40px 20px;
  color: var(--ink-4);
  font-family: var(--font-ui);
  font-size: 0.9rem;
}

.ai-loading.show {
  display: block;
}

.ai-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--line);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: ai-spin 0.7s linear infinite;
  margin-bottom: 12px;
}

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

/* Results area */
.ai-results {
  display: none;
  margin-top: 24px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.ai-results.show {
  display: block;
}

.ai-results-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  margin-bottom: 12px;
}

.ai-output {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.7;
  white-space: pre-wrap;
  word-wrap: break-word;
  position: relative;
}

.ai-output-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ai-output-item {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.6;
  cursor: pointer;
  transition: background 0.15s;
}

.ai-output-item:hover {
  background: var(--line);
}

.ai-output-item .ai-item-meta {
  display: inline-block;
  background: color-mix(in srgb, var(--red) 12%, transparent);
  color: var(--red);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

/* Copy button */
.ai-copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-4);
  cursor: pointer;
  transition: all 0.15s;
}

.ai-copy-btn:hover {
  border-color: var(--red);
  color: var(--red);
}

.ai-error {
  display: none;
  background: var(--red-pale);
  border: 1px solid #f5b8ae;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: var(--red);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  margin-top: 16px;
}

.ai-error.show {
  display: block;
}

.ai-note {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--ink-4);
  margin-top: 14px;
  text-align: center;
}

.ai-char-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-4);
  text-align: right;
  margin-top: 4px;
}

.ai-char-count.warn {
  color: var(--red);
}

/* Responsive */
@media (max-width: 600px) {
  .ai-tool-wrap {
    padding: 24px 20px;
  }
  .ai-field-row {
    flex-direction: column;
    gap: 0;
  }
  .ai-tool-header h2 {
    font-size: 1.3rem;
  }
}