:root {
  --bg: #0f1115;
  --bg-elev: #161a21;
  --bg-elev-2: #1c2129;
  --border: #262c36;
  --text: #e6e8ec;
  --muted: #8a93a3;
  --accent: #4ade80;
  --accent-dim: #1f3a2a;
  --danger: #ef4444;
  --warn: #f59e0b;
  --info: #60a5fa;
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Consolas, monospace;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, .mono { font-family: var(--mono); }
pre { white-space: pre-wrap; word-break: break-word; margin: 0; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.center { text-align: center; }
.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--mono); }

/* topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.brand .logo { color: var(--accent); font-size: 18px; }
.brand-name { letter-spacing: 0.5px; }

.nav { display: flex; gap: 4px; flex: 1; }
.nav a {
  padding: 6px 12px;
  border-radius: 3px;
  color: var(--muted);
}
.nav a:hover { background: var(--bg-elev-2); color: var(--text); text-decoration: none; }
.nav a.active { background: var(--accent-dim); color: var(--accent); }

.user { display: flex; align-items: center; gap: 12px; }

.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 2px;
  background: var(--bg-elev-2);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-admin { background: var(--accent-dim); color: var(--accent); }

/* container */
.container { padding: 24px; max-width: 1400px; margin: 0 auto; }

h1 { font-size: 22px; margin: 0 0 16px 0; }
h2 { font-size: 16px; margin: 0 0 12px 0; color: var(--muted); font-weight: 500; }

/* card */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

/* forms */
label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
input, select, textarea {
  width: 100%;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 6px;
  font: inherit;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
input[type="password"], input[type="text"], input[type="number"] {
  font-family: var(--mono);
}

button, .btn {
  background: var(--bg-elev-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font: inherit;
}
button:hover { border-color: var(--accent); }
button.primary {
  background: var(--accent);
  color: #0f1115;
  border-color: var(--accent);
  font-weight: 600;
}
button.primary:hover { filter: brightness(1.1); }
button.ghost {
  background: transparent;
}
button.ghost:disabled { opacity: 0.4; cursor: not-allowed; }
button.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  padding: 4px 8px;
  cursor: pointer;
}
button.link-btn:hover { text-decoration: underline; }
button.link-btn.danger { color: var(--danger); }

/* alerts */
.alert {
  padding: 12px 16px;
  border-radius: 6px;
  margin: 12px 0;
  border: 1px solid var(--border);
}
.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}
.alert-success {
  background: rgba(74, 222, 128, 0.08);
  border-color: rgba(74, 222, 128, 0.3);
  color: var(--accent);
}

/* login */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 100px);
}
.login-card {
  width: 100%;
  max-width: 420px;
}
.login-card h1 { margin-bottom: 4px; }
.login-card p { margin-top: 4px; margin-bottom: 16px; }
.login-card input { margin-bottom: 16px; }
.login-card button { width: 100%; }

/* search filters */
.filters-box {
  margin-bottom: 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.filters-box > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 16px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  background: var(--bg-elev-2);
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.filters-box > summary::-webkit-details-marker { display: none; }
.filters-box > summary::before {
  content: "▸";
  color: var(--accent);
  font-size: 10px;
  transition: transform 0.15s;
}
.filters-box[open] > summary::before { transform: rotate(90deg); }
.filters-box > summary:hover { color: var(--text); }

.filters {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  padding: 16px;
}
.filter { display: flex; flex-direction: column; }

.actions { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }

.cancel-btn { display: none; }
.htmx-request .cancel-btn { display: inline-block; }
.htmx-request .search-btn { display: none; }

.empty-state { padding: 48px 16px; font-style: italic; }

.spinner {
  font-size: 18px;
  color: var(--accent);
  display: inline-block;
}
.htmx-indicator { opacity: 0; transition: opacity 0.2s; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }

@keyframes spin { to { transform: rotate(360deg); } }
.spinner { animation: spin 1s linear infinite; }

/* results */
.results-summary {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  padding: 0 4px;
}

.table-wrap {
  overflow-x: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  font-weight: 500;
  background: var(--bg-elev-2);
}
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-elev-2); }
tr.disabled td { opacity: 0.5; }

.addr code { font-size: 12px; }
.motd { max-width: 260px; }
.motd span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.icon-cell { width: 40px; }
.server-icon {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  display: block;
  image-rendering: pixelated;
}
.server-icon.big { width: 64px; height: 64px; }
.server-icon.placeholder {
  background: var(--bg-elev-2);
  color: var(--muted);
  text-align: center;
  line-height: 28px;
  font-size: 12px;
}

/* status pills */
.status {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--mono);
  background: var(--bg-elev-2);
  color: var(--muted);
}
.status-ONLINE { background: rgba(74, 222, 128, 0.15); color: var(--accent); }
.status-OFFLINE { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }
.status-HANDSHAKE_FAILED { background: rgba(245, 158, 11, 0.15); color: var(--warn); }
.status-TIMEOUT { background: rgba(96, 165, 250, 0.15); color: var(--info); }

/* pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 16px 0;
}

/* detail */
.detail-card {
  margin-top: 16px;
  position: relative;
}
.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 8px 16px;
  margin: 0;
}
.kv dt { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; padding-top: 4px; }
.kv dd { margin: 0; }
.motd-block {
  background: var(--bg-elev-2);
  padding: 10px;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 12px;
}
.mods { list-style: none; padding-left: 0; max-height: 300px; overflow: auto; }
.mods li { padding: 2px 0; font-size: 12px; }
.mods code { color: var(--text); }

/* stats */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat { text-align: center; padding: 16px; }
.stat-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.stat-value {
  font-size: 24px;
  font-family: var(--mono);
  color: var(--accent);
  font-weight: 600;
}
.stat-value.small { font-size: 13px; color: var(--text); font-weight: 400; }
.stat-sub { font-size: 11px; color: var(--muted); margin-top: 4px; font-family: var(--mono); }

/* charts */
.chart-card { padding: 16px 20px; }
.chart-wrap { position: relative; height: 260px; }
.chart-wrap.tall { height: 360px; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

.buckets td { padding: 6px 12px; }
.bucket-key { font-family: var(--mono); font-size: 12px; width: 30%; }
.bucket-bar { width: 50%; }
.bucket-count { width: 20%; }
.bar {
  height: 6px;
  background: var(--accent);
  border-radius: 2px;
  min-width: 2px;
  opacity: 0.6;
}

/* keys */
.row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.row .filter { min-width: 180px; }
.key-show {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 8px 0;
  padding: 10px 12px;
  background: var(--bg-elev-2);
  border-radius: 4px;
}
.key-show code { flex: 1; word-break: break-all; font-size: 13px; user-select: all; }
.key-show button { flex-shrink: 0; }

table.keys th, table.keys td { padding: 8px 12px; }

table.invites th, table.invites td { padding: 8px 12px; }
.invite-url { min-width: 520px; }
.invite-url-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elev-2);
  padding: 6px 10px;
  border-radius: 4px;
}
.invite-url-row code {
  flex: 1;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  user-select: all;
}
.invite-url-row button { flex-shrink: 0; padding: 2px 8px; }

/* docs */
.docs-page h1 { margin-bottom: 4px; }
.docs-page > p { margin-top: 4px; margin-bottom: 24px; }
.docs-toc { padding: 12px 20px; }
.docs-toc ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; }
.docs-toc a { font-size: 12px; font-family: var(--mono); }
.docs-page article { scroll-margin-top: 80px; }
.docs-page article h2 { font-size: 18px; color: var(--text); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; font-family: var(--mono); }
.docs-page article h3 { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; margin: 20px 0 8px 0; font-weight: 500; }
.docs-page article p { margin: 8px 0; }
.docs-page article ul { padding-left: 20px; }
.method {
  display: inline-block;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 3px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.5px;
}
.method.admin { background: rgba(245, 158, 11, 0.15); color: var(--warn); }
.code, pre.code {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  font-size: 12px;
  overflow-x: auto;
  margin: 8px 0;
}
table.params { width: 100%; border-collapse: collapse; margin: 8px 0; }
table.params th, table.params td { padding: 6px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
table.params th { color: var(--muted); font-size: 11px; text-transform: uppercase; font-weight: 500; }
table.params code { font-size: 12px; }

/* account */
.account-page .kv { grid-template-columns: 120px 1fr; }
.account-page .kv dd code { background: var(--bg-elev-2); padding: 2px 6px; border-radius: 3px; }

/* metrics */
.metrics-page #metrics-form { margin-bottom: 16px; padding: 16px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); }
.metrics-page #metrics-form .filter { min-width: 160px; }
table.reqlog td, table.reqlog th { padding: 6px 10px; font-size: 12px; }
table.reqlog .path code { font-size: 11px; }
.key-actions { white-space: nowrap; display: flex; gap: 4px; align-items: center; }
.key-actions a.link-btn { display: inline-block; padding: 4px 8px; }