:root {
  --bg: #ffffff;
  --fg: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --card: #f8fafc;
  --accent: #16a34a;
  --danger: #dc2626;
  --ok: #16a34a;
  --warn: #d97706;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 "Fira Sans", "Noto Sans SC", system-ui, sans-serif; }
a { color: inherit; }
button, input { font: inherit; }
.app { max-width: 720px; margin: 0 auto; min-height: calc(100vh - 56px); padding: 24px 20px 40px; }
.bar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,.94); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.bar-inner {
  max-width: 720px; margin: 0 auto; padding: 8px 20px;
  display: flex; align-items: center; gap: 16px; min-height: 56px;
}
.brand { font-weight: 800; letter-spacing: -0.04em; font-size: 18px; flex: 0 0 auto; }
.auth { color: var(--muted); font-size: 13px; display: flex; gap: 12px; align-items: center; margin-left: auto; white-space: nowrap; }
.auth button { background: none; border: 0; color: var(--fg); cursor: pointer; padding: 8px 0; }
h1 { font-size: clamp(28px, 6vw, 42px); font-weight: 900; letter-spacing: -0.04em; margin: 0 0 8px; }
.sub { color: var(--muted); margin: 0 0 28px; }
.grid { display: grid; gap: 12px; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.card b { display: block; font-size: 28px; letter-spacing: -0.03em; }
.card span { color: var(--muted); font-size: 13px; }
.list { display: grid; gap: 10px; }
.item { border-bottom: 1px solid var(--line); padding: 10px 0; color: var(--muted); font-size: 14px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 6px; }
input, textarea {
  width: 100%; background: #ffffff; color: var(--fg); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px 14px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
  padding: 0 18px; border: 0; border-radius: 999px; background: var(--accent); color: #ffffff;
  font-weight: 700; cursor: pointer; text-decoration: none;
}
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.nav {
  display: flex; flex: 1; gap: 4px; min-width: 0; overflow-x: auto;
}
.nav button {
  background: none; border: 0; color: var(--muted); min-height: 44px; padding: 0 10px;
  cursor: pointer; font-size: 14px; white-space: nowrap;
}
.nav button.on { color: var(--fg); font-weight: 700; }
.hidden { display: none !important; }
.keybox { font-family: "Fira Code", ui-monospace, monospace; word-break: break-all; font-size: 13px; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 8px; }
.dot.ok { background: var(--ok); }
.dot.bad { background: var(--danger); }
.spark { width: 100%; height: 48px; display: block; }
.msg { display: grid; gap: 2px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.msg b { font-size: 13px; }
.msg span { color: var(--muted); font-size: 12px; }
.err { color: var(--danger); font-size: 13px; min-height: 18px; }
.empty { color: var(--muted); padding: 24px 0; }
@media (max-width: 520px) { .cards { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

body.status-mode { background: #f4f6f9; }
body.status-mode .app { max-width: 1120px; padding-top: 20px; }
body.status-mode .bar-inner { max-width: 1120px; }
.status-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.status-head h1 { margin: 0; }
.status-toggle { display: flex; background: #eef2f7; border-radius: 999px; padding: 4px; }
.status-toggle button { min-height: 36px; padding: 0 16px; border: 0; background: transparent; color: var(--muted); border-radius: 999px; cursor: pointer; font-weight: 600; }
.status-toggle button.on { background: #fff; color: var(--fg); box-shadow: 0 1px 2px rgba(15,23,42,.08); }
.status-alert { display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 14px 18px; margin-bottom: 16px; box-shadow: 0 8px 24px rgba(15,23,42,.04); }
.status-alert .bolt { width: 36px; height: 36px; border-radius: 50%; background: #fff4e5; color: #f59e0b; display: grid; place-items: center; font-size: 18px; flex: 0 0 auto; }
.status-alert b { display: block; }
.status-alert span { color: var(--muted); font-size: 13px; }
.status-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 18px 18px 14px; box-shadow: 0 10px 28px rgba(15,23,42,.05); }
.stat-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.stat-name { font-weight: 800; letter-spacing: -0.03em; }
.stat-badge { background: #e8f8ef; color: #059669; font-size: 12px; font-weight: 700; border-radius: 999px; padding: 4px 10px; }
.stat-badge.bad { background: #fee2e2; color: #dc2626; }
.stat-pct { font-size: 42px; font-weight: 800; letter-spacing: -0.05em; color: #059669; line-height: 1.1; }
.stat-pct small { display: block; font-size: 13px; font-weight: 500; color: var(--muted); margin-top: 4px; }
.stat-dots { display: flex; gap: 3px; flex-wrap: nowrap; overflow: hidden; margin: 12px 0 16px; }
.stat-dots i { width: 7px; height: 7px; border-radius: 50%; background: #22c55e; flex: 0 0 auto; }
.stat-dots i.warn { background: #d97706; }
.stat-dots i.bad { background: #ef4444; }
.stat-lat { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; color: var(--muted); font-size: 13px; }
.stat-lat b { font-size: 28px; color: #059669; letter-spacing: -0.04em; }
.stat-chart { width: 100%; height: 88px; display: block; }
.stat-axis { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; margin: 4px 0 14px; }
.stat-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.stat-metrics div { min-width: 0; }
.stat-metrics span { display: block; color: var(--muted); font-size: 12px; }
.stat-metrics b { display: block; font-size: 14px; font-weight: 700; letter-spacing: -0.02em; }
.stat-foot { color: var(--muted); font-size: 12px; margin-top: 10px; }
@media (max-width: 980px) { .status-grid { grid-template-columns: 1fr; } }