/* nav.css — 站点导航样式
   浅色为默认，深色跟随系统偏好。改配色只需要动下面这两组变量。 */

:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --card-hover: #ffffff;
  --text: #1f2328;
  --muted: #656d76;
  --line: #d8dee4;
  --accent: #0969da;
  --ring: rgba(9, 105, 218, .35);
  --shadow: 0 1px 2px rgba(31, 35, 40, .06);
  --shadow-hover: 0 8px 20px rgba(31, 35, 40, .12);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --card: #161b22;
    --card-hover: #1c2430;
    --text: #e6edf3;
    --muted: #8b949e;
    --line: #30363d;
    --accent: #58a6ff;
    --ring: rgba(88, 166, 255, .4);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, .55);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI",
        "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 940px;
  margin: 0 auto;
  /* 上下留白用 padding-block，左右留 20px 保证窄屏不贴边 */
  padding-block: clamp(32px, 6vw, 64px) 48px;
  padding-inline: 20px;
}

/* ---------------- 搜索 ---------------- */

.search-row { margin-bottom: 28px; }

#q {
  width: 100%;
  font: inherit;
  font-size: 15px;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  outline: none;
  box-shadow: var(--shadow);
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
  appearance: none;
}

#q::placeholder { color: var(--muted); }

#q:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--ring);
}

/* 去掉 Safari 给 search 输入框加的清除按钮，宽度会跳 */
#q::-webkit-search-decoration,
#q::-webkit-search-cancel-button { -webkit-appearance: none; }

/* ---------------- 分组 ---------------- */

.group { margin-bottom: 28px; }
.group:last-child { margin-bottom: 0; }

.group-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

/* ---------------- 卡片网格 ---------------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  height: 100%;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: border-color .15s, box-shadow .15s, transform .15s, background .15s;
}

.card:hover,
.card:focus-visible {
  background: var(--card-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  outline: none;
}

.card:focus-visible { box-shadow: 0 0 0 3px var(--ring), var(--shadow-hover); }

.card-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  /* 底色由 JS 按站点主色写入 --c */
  color: var(--c, var(--accent));
  background: color-mix(in srgb, var(--c, var(--accent)) 14%, transparent);
}

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

.card-name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.card-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  margin: 4px 0 0;
}

.card-host {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------------- 空状态 / 页脚 ---------------- */

.empty {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  padding: 40px 0;
  margin: 0;
}

.foot {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

/* ---------------- 动效降级 ---------------- */

@media (prefers-reduced-motion: reduce) {
  .card { transition: none; }
  .card:hover, .card:focus-visible { transform: none; }
}