/* style.css — Codex Skills Hub 暗色主题 */

:root {
  /* 色彩系统 */
  --bg: #0a0a0c;
  --bg-elevated: #131316;
  --card: #1a1a1f;
  --card-hover: #1f1f25;
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

  --text: #fafafa;
  --text-2: #a1a1aa;
  --text-3: #71717a;

  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --accent-2: #8b5cf6;

  --green: #10b981;
  --yellow: #f59e0b;
  --pink: #ec4899;
  --red: #ef4444;

  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-hover: 0 10px 30px rgba(0,0,0,0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 150ms;
}
a:hover { color: #a5b4fc; }

::selection {
  background: var(--accent-glow);
  color: var(--text);
}

/* ===== Header ===== */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(10, 10, 12, 0.85);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.logo-icon {
  font-size: 32px;
  line-height: 1;
  filter: drop-shadow(0 2px 8px var(--accent-glow));
}

.logo-copy {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.logo-subtitle {
  font-size: 12px;
  color: var(--text-2);
  margin-top: 1px;
}

.header-stats {
  display: flex;
  gap: 24px;
}

/* 头部右侧：stats + 语言切换器 */
.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* 语言切换器 */
.lang-switcher {
  display: inline-flex;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--text-2);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  line-height: 1;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  background: var(--accent);
  color: white;
}

/* 分类描述条（官方精选/社区清单 等切换时显示） */
.category-desc {
  font-size: 13px;
  color: var(--text-2);
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  margin-top: 4px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 11px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* ===== Container ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* ===== Controls ===== */
.controls {
  margin-bottom: 32px;
}

.search-wrap {
  position: relative;
  margin-bottom: 20px;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
  font-size: 18px;
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 52px;
  padding: 0 48px 0 48px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: all 180ms;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-input::placeholder {
  color: var(--text-3);
}

.search-clear {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  color: var(--text-3);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  display: none;
  border-radius: 4px;
}

.search-clear:hover { color: var(--text); }
.search-clear.visible { display: block; }

/* ===== Category Tabs ===== */
.category-tabs {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: all 180ms;
}

.tab:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.tab.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.tab-icon {
  font-size: 14px;
  line-height: 1;
}

/* Sub-group tabs (Figma/GitHub/Notion etc) */
.subgroup-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.subgroup-tab {
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-2);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: all 150ms;
}

.subgroup-tab:hover {
  color: var(--text);
  border-color: var(--border-hover);
}

.subgroup-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* ===== Results Grid ===== */
.results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 200ms;
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent, var(--accent));
  opacity: 0.7;
}

.skill-card:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.card-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.card-icon {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
}

.card-title-wrap {
  flex: 1;
  min-width: 0;
}

.card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 14px;
}

.card-repo {
  font-size: 12px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.card-repo a {
  color: var(--text-2);
}

.card-stars {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 2px 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 999px;
  font-size: 11px;
  color: var(--text-2);
  font-weight: 500;
}

.card-desc {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-install {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--text-2);
}

.card-install code {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-3);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  transition: all 150ms;
  flex-shrink: 0;
}

.copy-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.copy-btn.copied {
  color: var(--green);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 4px;
}

.card-link {
  font-size: 12px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link:hover { text-decoration: underline; }

.card-group {
  font-size: 11px;
  color: var(--text-3);
  padding: 2px 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-3);
  font-size: 16px;
}

/* ===== About ===== */
.about {
  margin-top: 64px;
  padding: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.about h2 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--text);
}

.about p {
  color: var(--text-2);
  margin-bottom: 8px;
  font-size: 14px;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  color: var(--text-3);
  font-size: 13px;
}

.site-footer a { color: var(--text-2); }
.site-footer a:hover { color: var(--text); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
  }

  .header-stats {
    width: 100%;
    justify-content: space-around;
  }

  .header-right {
    width: 100%;
    justify-content: space-between;
  }

  .container { padding: 20px 16px 60px; }

  .search-input { height: 48px; font-size: 14px; }

  .results {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .category-tabs { font-size: 12px; }
  .tab { padding: 6px 10px; font-size: 12px; }

  .logo-text { font-size: 16px; }
  .logo-subtitle { font-size: 11px; }

  .category-desc { font-size: 12px; padding: 8px 12px; }
}

@media (prefers-color-scheme: light) {
  /* 浅色模式 fallback（可选保留） */
  :root {
    --bg: #fafafa;
    --bg-elevated: #ffffff;
    --card: #ffffff;
    --card-hover: #f4f4f5;
    --border: rgba(0,0,0,0.08);
    --border-hover: rgba(0,0,0,0.15);
    --text: #18181b;
    --text-2: #52525b;
    --text-3: #a1a1aa;
  }
  .site-header { background: rgba(250,250,250,0.85); }
}