/* ===========================================================
   自制打气筒 · 公共样式
   明亮柔和配色：浅青绿底 + 白卡片 + 深灰蓝文字
   低饱和、无纯黑纯白，长时间看与投影都不刺眼
   =========================================================== */

:root {
  --bg: #f3f8f6;
  --panel: #ffffff;
  --surface: #f7faf9;
  --surface-2: #eef4f3;
  --line: rgba(28, 46, 66, 0.09);
  --line-strong: rgba(28, 46, 66, 0.18);
  --txt: #1f2e3f;
  --txt-soft: #46596f;
  --dim: #71859b;
  --brand: #0b87c7;
  --brand-2: #5b5bd6;
  --brand-soft: #e6f3fb;
  --ok: #0e9a72;
  --ok-strong: #08795a;
  --ok-soft: #e6f7f1;
  --bad: #d95468;
  --bad-strong: #b83248;
  --bad-soft: #fdeef0;
  --warn: #c98a12;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(31, 52, 74, 0.07);
  --shadow-lg: 0 20px 50px rgba(31, 52, 74, 0.12);
}

[hidden] {
  display: none !important;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(1100px 700px at 10% -12%, rgba(56, 189, 248, 0.16), transparent 62%),
    radial-gradient(900px 620px at 94% -4%, rgba(129, 140, 248, 0.14), transparent 60%),
    radial-gradient(900px 700px at 50% 112%, rgba(52, 211, 153, 0.13), transparent 62%),
    var(--bg);
  color: var(--txt);
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-feature-settings: 'tnum';
  -webkit-font-smoothing: antialiased;
}

button {
  font-family: inherit;
  color: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: #ffffff;
  color: var(--txt-soft);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none; /* 顶栏里的按钮可能是 <a>，去掉下划线 */
  box-shadow: 0 2px 6px rgba(31, 52, 74, 0.05);
  transition: transform 0.12s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s,
    box-shadow 0.18s;
}

.btn:hover {
  background: var(--surface-2);
  border-color: rgba(28, 46, 66, 0.26);
  color: var(--txt);
  box-shadow: 0 4px 12px rgba(31, 52, 74, 0.08);
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-primary {
  background: linear-gradient(135deg, #1aa2e0, #5b5bd6);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(52, 128, 214, 0.28);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1593cd, #4f4fcc);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(52, 128, 214, 0.34);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--dim);
  font-weight: 500;
  box-shadow: none;
}

.btn-ghost:hover {
  background: #ffffff;
  color: var(--txt);
}

.btn-danger:hover {
  background: var(--bad-soft);
  border-color: rgba(217, 84, 104, 0.4);
  color: var(--bad-strong);
}

/* ---------- 徽标 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.badge-ok {
  color: var(--ok-strong);
  background: var(--ok-soft);
  border: 1px solid rgba(14, 154, 114, 0.32);
}

.badge-bad {
  color: var(--bad-strong);
  background: var(--bad-soft);
  border: 1px solid rgba(217, 84, 104, 0.3);
}

.badge-idle {
  color: var(--dim);
  background: var(--surface);
  border: 1px dashed var(--line-strong);
}

/* ---------- 顶部连接条 ---------- */
.conn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--dim);
}

.conn .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 0 0 0 4px rgba(201, 138, 18, 0.14);
  transition: background 0.25s, box-shadow 0.25s;
}

.conn.online .dot {
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(14, 154, 114, 0.16);
}

.conn.offline .dot {
  background: var(--bad);
  box-shadow: 0 0 0 4px rgba(217, 84, 104, 0.16);
}

/* ---------- 提示条 ---------- */
#toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 18px);
  padding: 12px 22px;
  border-radius: 13px;
  background: #ffffff;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-lg);
  color: var(--txt);
  font-size: 15px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s, transform 0.22s;
  z-index: 999;
  max-width: 80vw;
}

#toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(28, 46, 66, 0.18);
  border-radius: 99px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(28, 46, 66, 0.3);
}

/* ---------- 动画 ---------- */
@keyframes pop {
  0% {
    transform: scale(0.94);
    opacity: 0.4;
  }
  60% {
    transform: scale(1.012);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes flash {
  0% {
    box-shadow: 0 0 0 0 rgba(26, 162, 224, 0.45);
  }
  100% {
    box-shadow: 0 0 0 20px rgba(26, 162, 224, 0);
  }
}

.pop {
  animation: pop 0.34s cubic-bezier(0.22, 1, 0.36, 1);
}

.flash {
  animation: flash 0.9s ease-out;
}