.tag-checker-card,
.tag-checker-result {
  margin-top: 24px;
  padding: 24px;
  border: 1px solid #e3e7ee;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 6px 24px rgba(15, 23, 42, .05);
}

.tag-checker-head,
.tag-checker-result-head,
.tag-checker-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.tag-checker-head h2,
.tag-checker-result-head h2 {
  margin: 0;
  font-size: 20px;
}

.tag-checker-head span,
.tag-checker-result-head p,
.tag-checker-privacy {
  color: #64748b;
  font-size: 13px;
}

.tag-checker-result-head p {
  margin: 6px 0 0;
}

.tag-checker-code {
  width: 100%;
  min-height: 430px;
  margin-top: 14px;
  padding: 16px;
  resize: vertical;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #0f172a;
  color: #e2e8f0;
  font: 13px/1.65 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  tab-size: 2;
}

.tag-checker-code:focus {
  border-color: #4f46e5;
  outline: 3px solid rgba(79, 70, 229, .14);
}

.tag-checker-actions {
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: 16px;
}

.tag-checker-secondary {
  padding: 10px 16px;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  background: #fff;
  color: #334155;
  cursor: pointer;
}

.tag-checker-secondary:hover { background: #f8fafc; }
.tag-checker-privacy { margin-left: auto; }

.tag-checker-badge {
  flex: 0 0 auto;
  padding: 7px 12px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
  font-size: 13px;
  font-weight: 700;
}

.tag-checker-result.has-errors { border-color: #fecaca; }
.tag-checker-result.is-valid { border-color: #bbf7d0; }
.tag-checker-result.has-errors .tag-checker-badge { background: #fee2e2; color: #b91c1c; }
.tag-checker-result.is-valid .tag-checker-badge { background: #dcfce7; color: #15803d; }

.tag-checker-issues {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.tag-checker-issue {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #fecaca;
  border-radius: 8px;
  background: #fff7f7;
  color: #334155;
  text-align: left;
  cursor: pointer;
}

.tag-checker-issue:hover { border-color: #ef4444; }
.tag-checker-issue strong { display: block; color: #b91c1c; }
.tag-checker-issue code { display: block; margin-top: 6px; color: #64748b; white-space: pre-wrap; word-break: break-word; }

.tag-checker-valid-message {
  padding: 18px;
  border-radius: 8px;
  background: #f0fdf4;
  color: #166534;
}

.tag-checker-related {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.tag-checker-related a {
  padding: 8px 12px;
  border-radius: 6px;
  background: #f1f5f9;
  text-decoration: none;
}

@media (max-width: 720px) {
  .tag-checker-card, .tag-checker-result { padding: 16px; }
  .tag-checker-head, .tag-checker-result-head { align-items: flex-start; }
  .tag-checker-code { min-height: 340px; }
  .tag-checker-privacy { width: 100%; margin-left: 0; }
}