/**
 * URL 编码解码工具样式
 * 独立于博客主题，仅作用于 #ue-app 容器。
 * 暗色模式适配 Chirpy 的 html[mode=dark] 属性 + 系统偏好。
 */

#ue-app {
  --ue-border: rgba(128, 128, 128, 0.35);
  --ue-border-strong: rgba(128, 128, 128, 0.55);
  --ue-bg: rgba(128, 128, 128, 0.07);
  --ue-bg-hover: rgba(128, 128, 128, 0.14);
  --ue-text-muted: rgba(128, 128, 128, 0.95);
  --ue-accent: #2f6fde;
  --ue-accent-text: #fff;
  --ue-warn: #a05c00;
  --ue-radius: 8px;
}

html[mode='dark'] #ue-app {
  --ue-bg: rgba(255, 255, 255, 0.06);
  --ue-bg-hover: rgba(255, 255, 255, 0.12);
  --ue-text-muted: rgba(190, 190, 190, 0.95);
  --ue-accent: #5b8ff0;
  --ue-warn: #e0a94e;
}

@media (prefers-color-scheme: dark) {
  html:not([mode='light']) #ue-app {
    --ue-bg: rgba(255, 255, 255, 0.06);
    --ue-bg-hover: rgba(255, 255, 255, 0.12);
    --ue-text-muted: rgba(190, 190, 190, 0.95);
    --ue-accent: #5b8ff0;
    --ue-warn: #e0a94e;
  }
}

#ue-app .ue-mode-bar {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--ue-border);
  border-radius: var(--ue-radius);
  background: var(--ue-bg);
}

#ue-app .ue-mode {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  font-size: 0.88rem;
  cursor: pointer;
}

#ue-app .ue-mode input[type='radio'] { accent-color: var(--ue-accent); }

#ue-app .ue-field {
  position: relative;
  margin-top: 0.8rem;
}

#ue-app .ue-field-tag {
  position: absolute;
  top: 0.5rem;
  left: 0.7rem;
  font-size: 0.78rem;
  color: var(--ue-text-muted);
  pointer-events: none;
}

#ue-app .ue-field textarea {
  width: 100%;
  padding: 1.6rem 0.7rem 0.5rem;
  border: 1px solid var(--ue-border-strong);
  border-radius: var(--ue-radius);
  background: transparent;
  color: inherit;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  resize: vertical;
  transition: border-color 0.15s ease;
}

#ue-app .ue-field textarea:focus {
  outline: none;
  border-color: var(--ue-accent);
}

#ue-app .ue-field textarea[readonly] {
  cursor: default;
}

#ue-app .ue-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.8rem 0 0.2rem;
}

#ue-app .ue-btn {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--ue-border-strong);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s ease;
}

#ue-app .ue-btn:hover:not(:disabled) { background: var(--ue-bg-hover); }
#ue-app .ue-btn:disabled { opacity: 0.45; cursor: not-allowed; }

#ue-app .ue-btn-primary {
  background: var(--ue-accent);
  border-color: var(--ue-accent);
  color: var(--ue-accent-text);
}

#ue-app .ue-btn-primary:hover:not(:disabled) { opacity: 0.88; background: var(--ue-accent); }

#ue-app .ue-status {
  margin: 0.8rem 0 0;
  padding: 0.5rem 0.9rem;
  border-left: 3px solid var(--ue-accent);
  border-radius: 4px;
  background: var(--ue-bg);
  font-size: 0.9rem;
}

#ue-app .ue-status.ue-warn { border-left-color: var(--ue-warn); }