:root {
  --bg: #f5f7fb;
  --bg-soft: #ffffff;
  --panel: rgba(255, 255, 255, 0.86);
  --border: #e3e8f0;
  --border-strong: #cfd8e6;
  --text: #16202e;
  --text-dim: #64748b;
  --accent: #3b82f6;
  --accent-dark: #1d4ed8;
  --ok: #0f9d58;
  --ok-soft: #e8f7ef;
  --err: #d92d20;
  --err-soft: #fdecea;
  --warn: #b54708;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 12px 32px -12px rgba(16, 24, 40, 0.16);
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, "SFMono-Regular", monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(52rem 32rem at 12% -8%, rgba(59, 130, 246, 0.16), transparent 60%),
    radial-gradient(44rem 30rem at 92% 4%, rgba(139, 92, 246, 0.13), transparent 62%),
    radial-gradient(40rem 26rem at 50% 108%, rgba(14, 165, 233, 0.10), transparent 60%);
}

.shell {
  position: relative;
  z-index: 1;
  max-width: 660px;
  margin: 0 auto;
  padding: 44px 20px 56px;
}

/* ---------------- brand ---------------- */
.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 26px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), #7c3aed);
  box-shadow: 0 10px 24px -8px rgba(59, 130, 246, 0.65);
  flex: none;
}

.brand h1 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.01em;
}

.muted { color: var(--text-dim); }

.brand .muted { margin: 2px 0 0; font-size: 14px; }

/* ---------------- stats ---------------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  backdrop-filter: blur(8px);
}

.stat-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.stat-value {
  font-size: 22px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.stat-value--sm { font-size: 14px; font-family: var(--mono); word-break: break-all; }

/* ---------------- tabs ---------------- */
.tabs {
  display: flex;
  gap: 6px;
  padding: 5px;
  background: #eef2f8;
  border-radius: 12px;
  margin-bottom: 18px;
}

.tab {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  font: inherit;
  font-weight: 500;
  padding: 9px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}

.tab:hover { color: var(--text); }

.tab.is-active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.08);
}

/* ---------------- panel ---------------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

/* ---------------- form ---------------- */
.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 7px;
  color: #334155;
}

input[type="text"],
input[type="password"],
input[type="email"] {
  width: 100%;
  padding: 11px 13px;
  font: inherit;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
}

input.is-invalid { border-color: var(--err); }

input::placeholder { color: #a3aec0; }

.input-row { display: flex; gap: 8px; }
.input-row input { flex: 1; }

.ghost {
  flex: none;
  padding: 0 14px;
  font: inherit;
  font-size: 13px;
  color: var(--text-dim);
  background: #fff;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  cursor: pointer;
}

.ghost:hover { color: var(--text); border-color: #b9c4d6; }

.hint {
  margin: 7px 0 0;
  font-size: 12.5px;
  color: var(--text-dim);
}

.hint.is-ok { color: var(--ok); }
.hint.is-bad { color: var(--err); }

.meter {
  height: 4px;
  margin-top: 8px;
  border-radius: 3px;
  background: #e6ebf3;
  overflow: hidden;
}

.meter span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 3px;
  background: var(--err);
  transition: width 0.22s ease, background 0.22s ease;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
  color: #475569;
  margin: 4px 0 20px;
  cursor: pointer;
}

.check input { margin-top: 3px; accent-color: var(--accent); }

.primary {
  width: 100%;
  padding: 13px 16px;
  font: inherit;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
  background: linear-gradient(140deg, var(--accent), var(--accent-dark));
  border: 0;
  border-radius: 11px;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.15s, filter 0.15s;
  box-shadow: 0 10px 22px -10px rgba(59, 130, 246, 0.85);
}

.primary:hover:not(:disabled) { filter: brightness(1.05); }
.primary:active:not(:disabled) { transform: translateY(1px); }
.primary:disabled { opacity: 0.6; cursor: not-allowed; box-shadow: none; }

/* ---------------- result ---------------- */
.result {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 14px;
  border: 1px solid transparent;
}

.result.is-ok { background: var(--ok-soft); border-color: #b7e4cc; color: #0a6b3d; }
.result.is-err { background: var(--err-soft); border-color: #f6c9c4; color: #912018; }

.result strong { display: block; margin-bottom: 3px; }

.result code {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(255, 255, 255, 0.72);
  padding: 1px 6px;
  border-radius: 5px;
}

/* ---------------- steps / realms ---------------- */
.steps { margin: 0; padding-left: 20px; }
.steps li { margin-bottom: 18px; }
.steps h3 { margin: 0 0 4px; font-size: 15px; }
.steps p { margin: 0; color: var(--text-dim); font-size: 14px; }

pre {
  margin: 9px 0 0;
  padding: 11px 13px;
  background: #101828;
  color: #d6e2f5;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 13px;
}

code { font-family: var(--mono); font-size: 13px; }

.sub-head { margin: 24px 0 10px; font-size: 15px; }

.realms { display: grid; gap: 9px; }

.realm {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: #fff;
}

.realm-name { font-weight: 600; }
.realm-addr { font-family: var(--mono); font-size: 12.5px; color: var(--text-dim); }

.badge {
  font-size: 12px;
  padding: 3px 9px;
  border-radius: 999px;
  background: #eef2f8;
  color: var(--text-dim);
  flex: none;
}

.badge.is-on { background: var(--ok-soft); color: #0a6b3d; }

/* ---------------- admin ---------------- */
.admin-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

table.data th, table.data td {
  text-align: left;
  padding: 9px 10px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.data th {
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  font-weight: 600;
}

table.data td.mono { font-family: var(--mono); font-size: 12.5px; }

.table-wrap { overflow-x: auto; }

/* ---------------- footer ---------------- */
.foot {
  margin-top: 26px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-dim);
}

.foot a { color: var(--accent-dark); text-decoration: none; }
.foot a:hover { text-decoration: underline; }
.foot .dot { margin: 0 7px; opacity: 0.5; }
.foot code { font-size: 12px; }

@media (max-width: 560px) {
  .shell { padding: 28px 14px 40px; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .panel { padding: 20px 16px; }
  .brand h1 { font-size: 22px; }
}