/**
 * 进制转换工具样式（基础版，未做暗色专项适配）
 * 独立于博客主题，仅作用于 #bc-app 容器。
 */

#bc-app {
  --bc-border: rgba(128, 128, 128, 0.35);
  --bc-border-strong: rgba(128, 128, 128, 0.55);
  --bc-bg: rgba(128, 128, 128, 0.07);
  --bc-bg-hover: rgba(128, 128, 128, 0.14);
  --bc-text-muted: rgba(128, 128, 128, 0.92);
  --bc-accent: #2f6fde;
  --bc-accent-text: #fff;
  --bc-ok: #1a7f4b;
  --bc-err: #c0392b;
  --bc-radius: 8px;
}

#bc-app .bc-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

#bc-app .bc-hint {
  color: var(--bc-text-muted);
}

#bc-app .bc-grid {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

#bc-app .bc-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--bc-border);
  border-radius: var(--bc-radius);
  background: var(--bc-bg);
}

#bc-app .bc-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--bc-text-muted);
  margin: 0;
}

#bc-app .bc-sub {
  font-size: 0.75rem;
  opacity: 0.7;
}

#bc-app .bc-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  flex: none;
}

#bc-app .bc-dot-red { background: #e05a4d; }
#bc-app .bc-dot-orange { background: #e08a3c; }
#bc-app .bc-dot-green { background: #3cae6c; }
#bc-app .bc-dot-blue { background: #4a7fe0; }

#bc-app .bc-row {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
}

#bc-app .bc-row .bc-input {
  flex: 1 1 auto;
}

#bc-app .bc-input {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--bc-border-strong);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 0.95rem;
  font-family: inherit;
  line-height: 1.5;
  transition: border-color 0.15s ease;
}

#bc-app .bc-input:focus {
  outline: none;
  border-color: var(--bc-accent);
}

#bc-app .bc-input::placeholder {
  color: var(--bc-text-muted);
  opacity: 0.7;
}

#bc-app .bc-btn {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--bc-border-strong);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}

#bc-app .bc-btn:hover:not(:disabled) {
  background: var(--bc-bg-hover);
}

#bc-app .bc-btn-copy.bc-copied {
  color: var(--bc-ok);
  border-color: var(--bc-ok);
}

#bc-app .bc-error {
  margin-top: 0.8rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--bc-err);
  border-radius: var(--bc-radius);
  color: var(--bc-err);
  font-size: 0.88rem;
}

#bc-app .bc-error[hidden] {
  display: none;
}

@media (max-width: 520px) {
  #bc-app .bc-row {
    flex-direction: column;
  }
  #bc-app .bc-btn-copy {
    align-self: flex-end;
  }
}