@tailwind base;
@tailwind components;
@tailwind utilities;

/* 公告链接下划线 */
.announcement-text a {
  text-decoration: none !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.3) !important;
  padding-bottom: 2px;
}
.dark .announcement-text a {
  border-bottom-color: rgba(255, 255, 255, 0.5) !important;
}

/* 主题变量 */
:root {
  --color-bg: #ffffff;
  --color-bg-card: #ffffff;
  --color-bg-hover: #f3f4f6;
  --color-text: #111827;
  --color-text-secondary: #6b7280;
  --color-border: #e5e7eb;
  --color-primary: #3b82f6;
  --color-ring: rgba(59, 130, 246, 0.4);
}

.dark {
  --color-bg: #0a0a0a;
  --color-bg-card: #171717;
  --color-bg-hover: #262626;
  --color-text: #f3f4f6;
  --color-text-secondary: #9ca3af;
  --color-border: #2e2e2e;
  --color-primary: #60a5fa;
  --color-ring: rgba(96, 165, 250, 0.4);
}

/* Tailwind-like 工具类 */
.text-muted-foreground {
  color: var(--color-text-secondary);
}

.text-foreground {
  color: var(--color-text);
}

.text-primary {
  color: var(--color-primary);
}

.bg-primary {
  background-color: var(--color-primary);
}

.bg-muted {
  background-color: var(--color-bg-hover);
}

.border-border {
  border-color: var(--color-border);
}

.border-primary {
  border-color: var(--color-primary);
}

.prose {
  --tw-prose-links: var(--color-primary);
}

.dark .prose {
  --tw-prose-body: var(--color-text);
  --tw-prose-headings: var(--color-text);
  --tw-prose-links: var(--color-primary);
  --tw-prose-bold: var(--color-text);
  --tw-prose-code: var(--color-text);
  --tw-prose-quotes: var(--color-text-secondary);
  --tw-prose-quote-borders: var(--color-primary);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: background-color 0.3s ease, color 0.3s ease;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 入场动画 */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.anim-fade-in-up {
  animation: fade-in-up 0.6s ease-out both;
}

.anim-fade-in {
  animation: fade-in 0.5s ease-out both;
}

.anim-delay-1 { animation-delay: 0.1s; }
.anim-delay-2 { animation-delay: 0.2s; }
.anim-delay-3 { animation-delay: 0.3s; }
.anim-delay-4 { animation-delay: 0.4s; }
.anim-delay-5 { animation-delay: 0.5s; }

/* 卡片 */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.dark .card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 按钮 */
.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-card);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-pill:hover {
  background-color: var(--color-bg-hover);
}

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
}

/* 标签 */
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  background-color: var(--color-bg-hover);
  color: var(--color-text-secondary);
  transition: background-color 0.15s ease, color 0.15s ease;
  text-decoration: none;
}

.tag-pill:hover {
  background-color: var(--color-primary);
  color: white;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 3px;
}

/* 代码块 */
pre {
  border-radius: 0.75rem;
  overflow-x: auto;
  padding: 1rem;
  font-size: 0.875rem;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
}

code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* 代码高亮背景色（Shiki 不设置 pre 背景，需手动补） */
pre.shiki,
pre:has(> .shiki) {
  background-color: #fff !important;
}
pre.shiki code {
  background: transparent !important;
}
.dark pre.shiki,
.dark pre:has(> .shiki) {
  background-color: #24292e !important;
}

/* 隐藏标题锚点链接样式（保留功能，不显示为可点击） */
.prose h2 > a,
.prose h3 > a,
.prose h4 > a {
  color: inherit;
  text-decoration: none;
  cursor: default;
}
.prose h2 > a:hover,
.prose h3 > a:hover,
.prose h4 > a:hover {
  opacity: 1;
}