:root {
  --bg: #0e1117;
  --panel: #161b22;
  --panel-2: #1c2230;
  --border: #2a3140;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4f8cff;
  --ok: #3fb950;
  --warn: #d29922;
  --err: #f85149;
}
* { box-sizing: border-box; }
/* hidden 属性必须压过 .login/.modal/.user 等 display 规则，否则遮罩会盖住页面 */
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
code { background: #21262d; padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 22px; border-bottom: 1px solid var(--border); background: #0b0f14;
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo {
  width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, #4f8cff, #7c5cff);
  display: grid; place-items: center; font-weight: 700; color: white;
}
.name { font-weight: 650; letter-spacing: .3px; }
.sub { color: var(--muted); font-size: 12px; }
.user { display: flex; align-items: center; gap: 12px; color: var(--muted); }
main { max-width: 1120px; margin: 0 auto; padding: 22px; }
.login { display: grid; place-items: center; min-height: 70vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 36px 44px; text-align: center; max-width: 420px;
}
.login-card h1 { margin: 0 0 8px; font-size: 22px; }
.login-card p { color: var(--muted); margin: 0 0 22px; }
.btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 7px 14px; border-radius: 8px; cursor: pointer; font-size: 13px; text-decoration: none;
  display: inline-block;
}
.btn:hover { border-color: #3d4658; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn.danger { border-color: var(--err); color: var(--err); background: transparent; }
.tabs { display: flex; gap: 6px; margin-bottom: 18px; }
.tab {
  background: transparent; border: 1px solid transparent; color: var(--muted);
  padding: 8px 16px; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.tab.active { background: var(--panel); border-color: var(--border); color: var(--text); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px;
}
.card .k { color: var(--muted); font-size: 12px; }
.card .v { font-size: 26px; font-weight: 650; margin-top: 4px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.panel-head h2 { font-size: 16px; margin: 0; }
.row { display: flex; gap: 8px; align-items: center; }
.hint { color: var(--muted); font-size: 12px; }
select, input[type=text] {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 7px 10px; border-radius: 8px; font-size: 13px;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
tbody tr:hover { background: #1a2130; }
tr.clickable { cursor: pointer; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--border); }
.badge.info { color: #79c0ff; }
.badge.success { color: var(--ok); }
.badge.warning { color: var(--warn); }
.badge.error { color: var(--err); }
.status-sent { color: var(--ok); }
.status-dead { color: var(--err); }
.status-queued, .status-partial { color: var(--warn); }
.muted { color: var(--muted); }
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.55); display: grid; place-items: center; z-index: 30;
}
.modal-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 22px; width: min(560px, 92vw); max-height: 80vh; overflow: auto;
}
.modal-card h3 { margin: 0 0 14px; }
.modal-actions { display: flex; justify-content: flex-end; margin-top: 18px; }
.token-box {
  background: #0b0f14; border: 1px dashed var(--accent); border-radius: 8px;
  padding: 12px; font-family: ui-monospace, Consolas, monospace; font-size: 12px;
  word-break: break-all; user-select: all; margin: 10px 0;
}
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 10px 18px; border-radius: 10px; z-index: 40;
}
.toast.err { border-color: var(--err); color: #ffb3ad; }