:root {
  --bg: #ffffff;
  --subtle-bg: #fafbfc;
  --border: #dde3ea;
  --text: #1f2328;
  --muted: #5f6b76;
  --link: #1f2328;
  --button: #ffffff;
  --button-hover: #f6f8fa;
  --button-primary: #1f883d;
  --button-primary-hover: #1a7f37;
  --mono: "SFMono-Regular", "SF Mono", Consolas, Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
}

body {
  min-height: 100vh;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  font: inherit;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.header-inner,
.tabbar-inner,
.page-shell {
  max-width: 1080px;
  margin: 0 auto;
}

.header-inner {
  padding: 16px 24px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.brand-link {
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0;
}

.header-actions {
  display: flex;
  gap: 10px;
}

.header-button {
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  background: var(--button);
  color: var(--text);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, opacity 0.18s ease;
}

.header-button:hover {
  background: var(--button-hover);
}

.header-button-primary {
  background: var(--button-primary);
  border-color: rgba(27, 31, 36, 0.15);
  color: #fff;
  font-weight: 600;
}

.header-button-primary:hover {
  background: var(--button-primary-hover);
}

.tabbar {
  border-top: 1px solid var(--border);
  background: #ffffff;
}

.tabbar-inner {
  display: flex;
  gap: 26px;
  padding: 0 24px;
  overflow-x: auto;
}

.top-tab {
  display: inline-flex;
  align-items: center;
  padding: 14px 0 13px;
  border-bottom: 1px solid transparent;
  color: var(--muted);
  white-space: nowrap;
  font-size: 14px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.top-tab:hover {
  color: var(--text);
  text-decoration: none;
}

.top-tab.is-active {
  color: var(--text);
  border-bottom-color: var(--text);
}

.page-shell {
  padding: 34px 24px 80px;
}

.repo-list {
  border-top: 0;
}

.share-card {
  display: block;
  padding: 28px 0 30px;
  border-bottom: 1px solid var(--border);
  color: inherit;
  transition: background 0.18s ease;
}

.share-card:hover {
  text-decoration: none;
  background: var(--subtle-bg);
}

.share-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
}

.share-card-title {
  margin: 0 0 8px 0;
  font-size: 24px;
  line-height: 1.3;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.share-card-type {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.share-card-summary {
  margin: 0;
  max-width: 740px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.hidden {
  display: none;
}

.detail-view {
  position: relative;
}

.markdown-body {
  padding-top: 2px;
  max-width: 740px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.9;
}

.copy-content-button {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  background: var(--button);
  color: var(--text);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.copy-content-button:hover {
  background: var(--button-hover);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin: 30px 0 12px 0;
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--text);
}

.markdown-body h1 {
  font-size: 32px;
  margin-top: 4px;
  margin-bottom: 16px;
  font-weight: 600;
}

.markdown-body h2 {
  font-size: 24px;
  font-weight: 600;
}

.markdown-body h3 {
  font-size: 19px;
  font-weight: 600;
}

.markdown-body p {
  margin: 0 0 16px 0;
  color: var(--muted);
}

.markdown-body ul {
  margin: 4px 0 18px 20px;
  padding: 0;
}

.markdown-body li {
  margin: 0 0 8px 0;
  color: var(--muted);
}

.markdown-body a {
  word-break: break-word;
}

.markdown-body pre {
  margin: 20px 0 24px;
  padding: 16px 18px;
  overflow: auto;
  background: var(--subtle-bg);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.75;
  white-space: pre-wrap;
  color: #374151;
}

.markdown-body code {
  font-family: var(--mono);
  font-size: 0.92em;
}

@media (max-width: 800px) {
  .header-inner,
  .tabbar-inner,
  .page-shell {
    padding-left: 16px;
    padding-right: 16px;
  }

  .page-shell {
    padding-top: 28px;
    padding-bottom: 52px;
  }

  .share-card-top {
    flex-direction: column;
  }

  .copy-content-button {
    position: static;
    margin-bottom: 18px;
  }

  .share-card-title {
    font-size: 22px;
  }

  .markdown-body {
    font-size: 16px;
    line-height: 1.9;
  }

  .markdown-body h1 {
    font-size: 28px;
  }

  .markdown-body h2 {
    font-size: 22px;
  }

  .markdown-body h3 {
    font-size: 18px;
  }
}