/* 基础样式与主题变量 */
:root {
  --bg: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --primary: #3b82f6;
  --primary-contrast: #ffffff;
  --surface: #f9fafb;
  --border: #e5e7eb;
  --success: #16a34a;
  --warn: #f59e0b;
  --error: #ef4444;
}

:root[data-theme='dark'] {
  --bg: #0b0f19;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #60a5fa;
  --primary-contrast: #0b0f19;
  --surface: #111827;
  --border: #1f2937;
  --success: #22c55e;
  --warn: #fbbf24;
  --error: #f87171;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.container { width: min(100%, 1080px); margin-inline: auto; padding-inline: 16px; }

/* 头部 */
.site-header { border-bottom: 1px solid var(--border); background: var(--surface); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; gap: 16px; padding: 12px 16px; }
.logo { margin: 0; font-size: 20px; }
.nav { display: flex; gap: 12px; margin-left: auto; }
.nav a { color: var(--text); text-decoration: none; padding: 8px 12px; border-radius: 8px; }
.nav a:hover { background: var(--border); }

/* 按钮 */
.btn { padding: 8px 14px; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 8px; cursor: pointer; }
.btn.primary { background: var(--primary); color: var(--primary-contrast); border-color: transparent; }
.btn:active { transform: translateY(1px); }

/* Hero 区域 */
.hero { padding: 32px 0 16px; text-align: center; }
.hero h2 { margin: 0 0 8px; font-size: clamp(24px, 3vw, 32px); }
.hero p { margin: 0 0 16px; color: var(--muted); }

/* 工具栏 */
.toolbar { border: 1px solid var(--border); background: var(--surface); border-radius: 12px; padding: 12px; margin: 12px 0 8px; }
.toolbar-row { display: flex; gap: 12px; align-items: center; }
.toolbar label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; color: var(--muted); }
.toolbar select, .toolbar input { padding: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); border-radius: 8px; }
.toolbar-actions { margin-left: auto; display: flex; gap: 8px; }
.flex-1 { flex: 1; }

/* 状态栏 */
.status { margin: 8px 0; color: var(--muted); min-height: 24px; }
.status .ok { color: var(--success); }
.status .warn { color: var(--warn); }
.status .err { color: var(--error); }

/* 仓库列表 */
.repo-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 12px; margin: 12px 0; }
.card { border: 1px solid var(--border); background: var(--surface); border-radius: 12px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.card .title { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card .title a { font-weight: 600; color: var(--text); text-decoration: none; }
.card .desc { color: var(--muted); }
.card .meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--muted); }
.lang-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 6px; vertical-align: middle; }
.card .actions { display: flex; gap: 8px; }

/* 骨架屏 */
.skeleton { border: 1px solid var(--border); background: var(--surface); border-radius: 12px; padding: 12px; }
.skeleton .line { height: 12px; background: var(--border); border-radius: 6px; margin: 8px 0; }
.skeleton .line.wide { width: 80%; }
.skeleton .line.narrow { width: 40%; }

.load-more { display: flex; justify-content: center; margin: 8px 0 24px; }

/* 特性栅格 */
.features { padding: 24px 0; }
.features ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.features li { padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }

/* 关于 */
.about { padding: 16px 0 32px; }

/* 底部 */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); padding: 16px; }
.site-footer small { color: var(--muted); }

/* 响应式细节 */
@media (max-width: 640px) { .header-inner { flex-wrap: wrap; } .nav { order: 2; width: 100%; justify-content: center; } .toolbar-row { flex-wrap: wrap; } }