/* 服务器监控面板 — 2026-11-08 浅色清爽主题：白底、轻边框、留白大、对比柔和 */
:root{
  --bg:#f4f6f9; --surface:#ffffff; --surface2:#f1f5f9; --border:#e2e8f0;
  --text:#0f172a; --muted:#64748b; --accent:#2563eb; --accent-hi:#1d4ed8;
  --green:#16a34a; --amber:#d97706; --red:#dc2626;
  --radius:12px;
  --shadow:0 1px 2px rgba(15,23,42,.05);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.55;-webkit-tap-highlight-color:transparent}
button,a,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
h1,h2,h3{font-weight:650}
a{color:var(--accent-hi)}
.muted{color:var(--muted)}
.small{font-size:13px}
.err{color:#dc2626;min-height:1.2em;margin:8px 0}
.hidden{display:none!important}

/* 顶栏 + 页签一起吸顶：往下翻详情页时，页签不会消失 */
.sticky-head{position:sticky;top:0;z-index:20;background:var(--bg)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 20px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.update-bar{max-width:1200px;margin:0 auto;padding:6px 20px 0;font-size:12.5px}
.update-bar.stale{color:#b45309}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo{width:26px;height:26px;flex:none;border-radius:8px;background:linear-gradient(135deg,#2563eb,#22c55e)}
.brand h1{font-size:17px;margin:0;white-space:nowrap}
.top-right{display:flex;align-items:center;gap:10px;flex:none}

/* 页签：胶囊组，选中是浅蓝底 + 蓝字，手机上横向滚动 */
.tabs{display:flex;gap:6px;padding:14px 20px 0;max-width:1200px;margin:0 auto}
.tabs button{background:transparent;color:var(--muted);border:1px solid transparent;padding:7px 14px;border-radius:99px;cursor:pointer;font-size:14px;white-space:nowrap}
.tabs button:hover{color:var(--text);background:#eef2f7}
.tabs button.on{background:#eff6ff;color:var(--accent-hi);border-color:#bfdbfe}
#alertFilters button.on{background:#eff6ff;color:var(--accent-hi);border-color:#bfdbfe}
.badge{color:#d97706;font-size:12px}

main{padding:18px 20px 32px;max-width:1200px;margin:0 auto}
.sec-title{font-size:16px;margin:22px 0 12px}
.sec-title:first-child{margin-top:4px}

/* 统计卡片：白底、轻阴影，数字 + 标签 + 一行小字说明 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;cursor:default;box-shadow:var(--shadow)}
.stat.clickable{cursor:pointer}
.stat b{font-size:26px;line-height:1.2;display:block;font-variant-numeric:tabular-nums}
.stat span{color:var(--muted);font-size:13px}
.stat small{display:block;color:var(--muted);font-size:12px;margin-top:2px}

/* 服务器卡片 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:12px}
.srv{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;cursor:pointer;box-shadow:var(--shadow);transition:border-color .15s, box-shadow .15s}
.srv:hover{border-color:#cbd5e1;box-shadow:0 2px 8px rgba(15,23,42,.07)}
.srv-head{display:flex;align-items:center;gap:8px}
.srv-head h3{margin:0;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.srv-head .pill{margin-left:auto;flex:none}
.dot{width:8px;height:8px;flex:none;border-radius:50%;background:#94a3b8}
.dot.online{background:#22c55e}
.dot.warning{background:#f59e0b}
.dot.critical{background:#ef4444}
.dot.offline{background:#94a3b8}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;line-height:1.6}
.pill.online{color:#15803d;background:#dcfce7}
.pill.warning{color:#b45309;background:#fef3c7}
.pill.critical{color:#b91c1c;background:#fee2e2}
.pill.offline{color:#64748b;background:#f1f5f9}
.srv-meta{color:var(--muted);font-size:13px;margin:8px 0 12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.meter-row{display:flex;justify-content:space-between;font-size:13px;margin-top:8px}
.meter-row b{font-variant-numeric:tabular-nums}
.meter{height:6px;background:#e8eef5;border-radius:99px;overflow:hidden;margin-top:4px}
.meter i{display:block;height:100%;border-radius:99px}
.meter i.ok{background:#22c55e}
.meter i.warn{background:#f59e0b}
.meter i.bad{background:#ef4444}
/* 卡片底部信息：每段一个 span，只在段与段之间换行，不会在数值中间断开 */
.srv-foot{display:flex;flex-wrap:wrap;gap:2px 10px;color:var(--muted);font-size:12.5px;margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}

/* 列表行（告警 / 规则） */
.list{display:flex;flex-direction:column;gap:8px}
.row-item{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;box-shadow:var(--shadow)}
.row-main{flex:1;min-width:0}
.row-main b{display:block;font-weight:600;overflow-wrap:anywhere}
.row-main span{color:var(--muted);font-size:13px}
.row-item .actions{display:flex;gap:6px;flex:none}

/* 表单与按钮 */
input,select,textarea{width:100%;padding:9px 11px;border-radius:10px;border:1px solid #dbe2ec;background:#fff;color:var(--text);margin:4px 0;font-size:14px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
input[type=checkbox]{width:auto;margin:0 6px 0 0;accent-color:var(--accent)}
button{background:var(--accent);color:#fff;border:0;padding:9px 15px;border-radius:10px;cursor:pointer;font-size:14px;margin:2px}
button:hover{filter:brightness(1.07)}
button.ghost{background:#fff;color:#334155;border:1px solid var(--border)}
button.danger{background:#dc2626}
button.small{padding:6px 11px;font-size:13px}
button.primary{width:100%;padding:11px}
.check{display:flex;align-items:center;color:var(--muted);font-size:13px;margin:10px 0;cursor:pointer}
.field{margin-bottom:10px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:3px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.form-grid .full{grid-column:1/-1}

code{background:#f1f5f9;color:#334155;padding:2px 6px;border-radius:6px;word-break:break-all;font-size:13px}
pre{background:#f8fafc;border:1px solid var(--border);color:#334155;padding:12px;border-radius:10px;overflow:auto;font-size:12.5px;margin:8px 0}
.modal{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}
.modal-box{background:#fff;border:1px solid var(--border);border-radius:14px;padding:22px;max-width:520px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 12px 32px rgba(15,23,42,.16)}
.modal-box h3{margin:0 0 10px}
.warn{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:11px 13px;font-size:13px;color:#92400e;margin:12px 0}
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.spacer{flex:1}
.row{display:flex;gap:8px;align-items:center}
.row input{flex:1}
.steps{margin:0 0 4px;padding-left:20px}
.steps li{margin-bottom:14px}
.steps li b{display:block}
.chip{display:inline-block;background:var(--surface2);border:1px solid var(--border);border-radius:99px;padding:3px 10px;font-size:12.5px;margin:2px 4px 2px 0}
.foot{max-width:1200px;margin:0 auto;padding:0 20px 28px;color:var(--muted);font-size:12.5px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
details{margin-top:14px}
details summary{cursor:pointer}
canvas{width:100%;height:220px;display:block}

/* 响应式：手机单列、统计卡 2 列、页签横滑、表单单列。
   手机是主力使用场景，所以这里按“单手可点”来做：输入框 16px（iOS
   聚焦时不自动放大页面）、按钮触摸高度不小于 44px、弹窗变底部抽屉、
   顶栏和页脚留出刘海屏 / 手势条的安全区。 */
@media (max-width:720px){
  body{font-size:15px}
  .topbar{padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top, 0px))}
  .update-bar{padding:6px 12px 0}
  .brand h1{font-size:16px}
  #logoutBtn{padding:8px 11px;font-size:13px;min-height:38px}
  .tabs{padding:10px 12px 0;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none}
  .tabs::-webkit-scrollbar{display:none}
  .tabs button{padding:10px 16px;font-size:15px;min-height:44px}
  main{padding:12px 12px 28px;padding-bottom:calc(28px + env(safe-area-inset-bottom, 0px))}
  .stats{grid-template-columns:repeat(2,1fr);gap:8px}
  .stat{padding:12px 14px}
  .stat b{font-size:22px}
  .grid{grid-template-columns:1fr}
  .srv{padding:16px}
  .meter{height:8px}
  .meter-row{font-size:14px}
  .form-grid{grid-template-columns:1fr}
  /* 输入框 16px：iOS 上聚焦时不会把整个页面放大 */
  input,select,textarea{font-size:16px;padding:11px 12px}
  button{min-height:44px;padding:10px 16px}
  button.small{min-height:40px;padding:8px 12px}
  .row-item{flex-wrap:wrap}
  .row-item .actions{width:100%}
  .row-item .actions button{flex:1}
  /* 弹窗改成底部抽屉：从屏幕底部滑出，保存 / 取消在拇指够得着的地方 */
  .modal{align-items:flex-end;padding:0}
  .modal-box{max-width:100%;width:100%;border-radius:16px 16px 0 0;padding:20px 16px calc(20px + env(safe-area-inset-bottom, 0px));max-height:92dvh}
  .foot{padding:0 12px 24px;padding-bottom:calc(24px + env(safe-area-inset-bottom, 0px))}
  canvas{height:200px}
}
@media (min-width:721px) and (max-width:1024px){
  .stats{grid-template-columns:repeat(4,1fr)}
}