/* 线路测速 - 样式 */
:root {
  --bg: #0b0f1a;
  --bg-card: rgba(255, 255, 255, 0.045);
  --bg-card-hover: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.09);
  --text: #eef2f8;
  --text-dim: #8b93a7;
  --accent: #4f7cff;
  --accent-2: #7c5cff;
  --good: #2dd4a7;
  --mid: #f5b93e;
  --bad: #f4643e;
  --fail: #6b7280;
  --radius: 16px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
  "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
          radial-gradient(1200px 600px at 15% -10%, rgba(79, 124, 255, 0.16), transparent 60%),
          radial-gradient(1000px 500px at 90% 0%, rgba(124, 92, 255, 0.13), transparent 55%),
          var(--bg);
  color: var(--text);
  padding: 32px 20px 64px;
}
.wrap { max-width: 860px; margin: 0 auto; }

header { text-align: center; margin-bottom: 28px; }
.logo {
  width: 58px; height: 58px; margin: 0 auto 14px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 28px rgba(79, 124, 255, 0.35);
}
.logo svg { width: 30px; height: 30px; }
h1 { font-size: 26px; font-weight: 700; letter-spacing: 0.5px; }
.subtitle { color: var(--text-dim); font-size: 14px; margin-top: 6px; }

.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 18px;
  backdrop-filter: blur(8px);
}
.toolbar-left { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 14px; color: var(--text-dim); }

.btn {
  border: none; cursor: pointer; font-size: 14px; font-weight: 600;
  padding: 9px 20px; border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 4px 16px rgba(79, 124, 255, 0.3);
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
  display: inline-flex; align-items: center; gap: 7px;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(79, 124, 255, 0.45); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.status-bar {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--text-dim);
  margin: 0 4px 14px;
  min-height: 20px;
}
.spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.list { display: flex; flex-direction: column; gap: 12px; }
.card {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  animation: fadeIn 0.35s ease both;
  position: relative;
  overflow: hidden;
}
.card:hover { background: var(--bg-card-hover); }
.card.best {
  border-color: rgba(45, 212, 167, 0.55);
  background: linear-gradient(135deg, rgba(45,212,167,0.09), rgba(255,255,255,0.03));
}
.card.best::before {
  content: "最快"; position: absolute; top: 0; right: 0;
  font-size: 11px; font-weight: 700; color: #05261c;
  background: var(--good); padding: 3px 12px;
  border-radius: 0 0 0 10px;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.card-idx {
  width: 34px; height: 34px; flex-shrink: 0;
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.07);
  font-size: 14px; font-weight: 700; color: var(--text-dim);
}
.card.best .card-idx { background: rgba(45,212,167,0.18); color: var(--good); }

.card-info { flex: 1; min-width: 0; }
.card-name { font-size: 15px; font-weight: 600; margin-bottom: 3px; }
.card-url {
  font-size: 12.5px; color: var(--text-dim);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}

.latency { flex-shrink: 0; text-align: right; min-width: 92px; }
.latency-val { font-size: 19px; font-weight: 700; font-variant-numeric: tabular-nums; }
.latency-val small { font-size: 12px; font-weight: 500; margin-left: 2px; color: var(--text-dim); }
.latency-val.good { color: var(--good); }
.latency-val.mid  { color: var(--mid); }
.latency-val.bad  { color: var(--bad); }
.latency-val.fail { color: var(--fail); font-size: 15px; }
.latency-bar {
  height: 4px; border-radius: 4px; margin-top: 6px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.latency-bar i {
  display: block; height: 100%; border-radius: 4px; width: 0%;
  transition: width 0.5s ease;
}
.latency-bar i.good { background: var(--good); }
.latency-bar i.mid  { background: var(--mid); }
.latency-bar i.bad  { background: var(--bad); }

.go-btn {
  flex-shrink: 0;
  border: none; cursor: pointer;
  padding: 9px 18px; border-radius: 10px;
  font-size: 13.5px; font-weight: 600; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: transform 0.15s, box-shadow 0.15s;
  display: inline-flex; align-items: center; gap: 6px;
  text-decoration: none;
}
.go-btn:hover { transform: translateY(-1px); box-shadow: 0 5px 16px rgba(79,124,255,0.4); }
.go-btn svg { width: 13px; height: 13px; }

.empty {
  text-align: center; padding: 60px 20px; color: var(--text-dim);
  background: var(--bg-card); border: 1px dashed var(--border);
  border-radius: var(--radius); font-size: 14px; line-height: 1.9;
}

footer { text-align: center; margin-top: 32px; color: var(--text-dim); font-size: 12px; }

@media (max-width: 560px) {
  .card { flex-wrap: wrap; }
  .card-info { flex-basis: calc(100% - 50px); }
  .latency { text-align: left; }
  .go-btn { margin-left: auto; }
}