:root {
  color-scheme: light;
  --bg: #f8fafc;
  --panel: #ffffff;
  --panel-2: #f1f5f9;
  --border: #e2e8f0;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --green: #16a34a;
  --red: #dc2626;
  --amber: #d97706;
  --shadow-sm: 0 1px 2px rgba(15,23,42,0.04);
  --shadow-md: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.loading { padding: 40px; color: var(--muted); }

#app { min-height: 100vh; }

/* --- app shell: sidebar + content --- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { padding: 20px 20px 16px; border-bottom: 1px solid var(--border); }
.brand-name { font-size: 18px; font-weight: 700; letter-spacing: 0.02em; color: var(--text); }
.brand-sub { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; margin-top: 2px; }

.sidebar nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}
a.nav-item:hover { background: var(--panel-2); color: var(--text); text-decoration: none; }
.nav-item.active { background: rgba(37,99,235,0.1); color: var(--accent); font-weight: 600; }
.nav-icon { display: inline-flex; flex-shrink: 0; }
.nav-icon svg { width: 16px; height: 16px; display: block; }

.sidebar-footer { padding: 12px 10px; border-top: 1px solid var(--border); }
.sidebar-footer button.nav-item {
  width: 100%;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}
.sidebar-footer button.nav-item:hover { background: var(--panel-2); color: var(--text); border: none; }

.content { flex: 1; min-width: 0; display: flex; flex-direction: column; }

@media (max-width: 720px) {
  .sidebar { width: 60px; }
  .nav-item .label, .brand-sub { display: none; }
  .brand { padding: 16px 4px; text-align: center; }
  .brand-name { font-size: 14px; }
  .nav-item { justify-content: center; padding: 10px 0; }
}

/* --- top bar --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.topbar h1 { font-size: 16px; margin: 0; font-weight: 600; color: var(--text); }
.topbar .actions { display: flex; gap: 8px; }

/* --- generic layout --- */
.page { max-width: 1100px; margin: 0 auto; padding: 24px; width: 100%; }
.page.wide { max-width: 1300px; }
.center-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}

/* --- buttons / inputs --- */
button, .btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
button:hover { border-color: var(--accent); color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: #1d4ed8; border-color: #1d4ed8; color: #fff; }
button.danger { border-color: var(--red); color: var(--red); }
button.danger:hover { background: rgba(220,38,38,0.06); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
button:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(37,99,235,0.18); }
label { display: block; font-size: 12px; font-weight: 500; color: var(--muted); margin: 12px 0 4px; }
form .row { display: flex; gap: 12px; }
form .row > div { flex: 1; }

/* --- login --- */
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 320px;
  box-shadow: var(--shadow-md);
}
.login-card h1 { font-size: 18px; margin: 0 0 20px; color: var(--text); }
.login-card .error { color: var(--red); font-size: 13px; margin-top: 10px; }

/* --- tables --- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 16px; border-top: 1px solid var(--border); }
thead th { background: var(--panel-2); color: var(--muted); }
th { color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; }
tr:hover td { background: rgba(15,23,42,0.02); }
td.actions-cell { white-space: nowrap; }
td.actions-cell button { margin-right: 6px; }
td.checkbox-cell, th.checkbox-cell { width: 1%; white-space: nowrap; }

/* --- sortable table headers --- */
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
th.sortable .sort-arrow { display: inline-block; margin-left: 4px; opacity: 0.4; }
th.sortable.active .sort-arrow { opacity: 1; color: var(--accent); }

/* --- bulk selection action bar --- */
.bulk-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  background: rgba(37,99,235,0.06); border: 1px solid var(--accent);
  border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; font-size: 13px;
}
.bulk-bar .count { font-weight: 600; color: var(--accent); }
.bulk-bar .spacer { flex: 1; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.dot.up { background: var(--green); }
.dot.down { background: var(--red); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.badge.prod { background: rgba(22,163,74,0.12); color: var(--green); }
.badge.demo { background: rgba(217,119,6,0.12); color: var(--amber); }
.badge.staging { background: rgba(37,99,235,0.12); color: var(--accent); }
.badge.suspended { background: rgba(220,38,38,0.12); color: var(--red); }
.badge.healthy { background: rgba(22,163,74,0.12); color: var(--green); }
.badge.unhealthy { background: rgba(220,38,38,0.12); color: var(--red); }
.badge.online { background: rgba(22,163,74,0.12); color: var(--green); }
.badge.offline { background: rgba(220,38,38,0.12); color: var(--red); }
.badge.config-error { background: rgba(217,119,6,0.12); color: var(--amber); }
.badge.paid { background: rgba(22,163,74,0.12); color: var(--green); }
.badge.pending { background: rgba(217,119,6,0.12); color: var(--amber); }
.badge.failed { background: rgba(220,38,38,0.12); color: var(--red); }
.badge.active { background: rgba(22,163,74,0.12); color: var(--green); }
.badge.paused { background: rgba(217,119,6,0.12); color: var(--amber); }
.badge.neutral { background: rgba(100,116,139,0.12); color: var(--muted); }

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

.toast {
  position: fixed; bottom: 20px; right: 20px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 16px; max-width: 360px;
  box-shadow: 0 8px 24px rgba(15,23,42,0.12);
  z-index: 100;
}
.toast.error { border-color: var(--red); color: var(--red); }
.toast.success { border-color: var(--green); color: var(--green); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.card h2 { font-size: 14px; margin: 0 0 14px; color: var(--text); }
.card h3 { font-size: 14px; margin: 0; color: var(--text); }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; gap: 12px; }
.card table th:first-child, .card table td:first-child { padding-left: 0; }
.card table th:last-child, .card table td:last-child { padding-right: 0; }

.kv { display: grid; grid-template-columns: 140px 1fr; gap: 8px 12px; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; color: var(--text); }

.muted-line { color: var(--muted); font-size: 12px; }
.section-label {
  font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--muted); margin: 18px 0 6px; font-weight: 600;
}

/* --- stat cards --- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 16px; }
@media (max-width: 1000px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .stat-grid { grid-template-columns: 1fr; } }
.stat-card { margin-bottom: 0; }
.stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-value { font-size: 26px; font-weight: 700; margin-top: 6px; color: var(--text); }
.stat-value.green { color: var(--green); }
.stat-value.red { color: var(--red); }
.stat-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* --- tenants grid --- */
.tenant-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 1100px) { .tenant-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) { .tenant-grid { grid-template-columns: 1fr; } }
.tenant-card { margin-bottom: 0; display: flex; flex-direction: column; }
.tenant-card.muted { opacity: 0.6; }
.tenant-domain {
  font-size: 12px; margin-bottom: 10px; display: block;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.trow {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0; border-top: 1px solid var(--border); font-size: 13px; gap: 12px;
}
.trow .k { color: var(--muted); flex-shrink: 0; }
.trow .v { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tenant-card .view-link { margin-top: auto; padding-top: 12px; font-size: 13px; }

/* --- servers page --- */
.metric-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 4px; }
@media (max-width: 760px) { .metric-tiles { grid-template-columns: 1fr; } }
.metric-tile { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.metric-tile .m-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.metric-tile .m-value { font-size: 14px; font-weight: 600; margin-top: 4px; color: var(--text); }
.docker-line { margin-top: 12px; font-size: 11px; letter-spacing: 0.05em; color: var(--muted); text-transform: uppercase; }

/* --- databases page --- */
.db-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 16px; align-items: start; }
@media (max-width: 900px) { .db-layout { grid-template-columns: 1fr; } }
.db-server-group { margin-bottom: 16px; }
.db-server-group:last-child { margin-bottom: 0; }
.db-server-name { font-size: 13px; font-weight: 600; margin-bottom: 6px; display: flex; flex-direction: column; color: var(--text); }
.db-list { display: flex; flex-direction: column; gap: 2px; }
.db-item {
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
  padding: 7px 10px; border-radius: 6px; cursor: pointer; font-size: 13px;
}
.db-item:hover { background: var(--panel-2); }
.db-item.active { background: rgba(37,99,235,0.1); color: var(--accent); font-weight: 600; }
.db-item .size { color: var(--muted); font-size: 11px; flex-shrink: 0; }

.sql-input {
  width: 100%; min-height: 120px; resize: vertical;
  font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 10px; border-radius: 8px;
}
.sql-actions { display: flex; justify-content: flex-end; margin-top: 10px; }
.sql-result { margin-top: 12px; }
.sql-ok { color: var(--green); font-weight: 600; padding: 6px 0; }

.table-scroll { overflow: auto; max-height: 420px; border: 1px solid var(--border); border-radius: 8px; }
.table-scroll table { min-width: 100%; }
.table-scroll th { position: sticky; top: 0; background: var(--panel-2); z-index: 1; }
.table-scroll th, .table-scroll td { padding: 8px 12px; white-space: nowrap; }
.table-scroll thead tr:first-child th { border-top: none; }
.sql-result td { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.null-cell { color: var(--muted); font-style: italic; }

/* --- payments --- */
.callout {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: 1px solid var(--amber); background: rgba(217,119,6,0.07);
  border-radius: 10px; padding: 12px 16px; margin-bottom: 16px; font-size: 13px;
}
.qr-wrap { text-align: center; margin: 12px 0; }
.qr-img { width: 240px; height: 240px; background: #fff; padding: 8px; border-radius: 8px; display: inline-block; border: 1px solid var(--border); }
.qr-amount { text-align: center; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.link-box { display: flex; gap: 8px; margin-top: 12px; }
.link-box input { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.link-box button { flex-shrink: 0; }

/* --- loading / error states --- */
.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-row { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; padding: 8px 0; }
.inline-error { color: var(--red); font-size: 13px; padding: 6px 0; }

/* --- feature toggles (tenant detail) --- */
.feature-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 16px;
}
.feature-toolbar input[type="search"] { max-width: 260px; }

.feature-group {
  border-left: 3px solid var(--border); border-radius: 4px;
  padding: 2px 0 2px 12px; margin-bottom: 16px;
}
.feature-group:last-child { margin-bottom: 0; }
.feature-group.group-accent { border-left-color: var(--accent); }
.feature-group.group-green { border-left-color: var(--green); }
.feature-group.group-amber { border-left-color: var(--amber); }
.feature-group.group-muted { border-left-color: var(--muted); }
.feature-group-head {
  display: flex; align-items: baseline; justify-content: space-between;
  font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase;
  font-weight: 600; color: var(--text); margin-bottom: 2px;
}

.feature-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0; border-top: 1px solid var(--border);
  transition: opacity 0.15s;
}
.feature-group .feature-row:first-of-type { border-top: none; }
.feature-row.is-blocked { opacity: 0.55; }
.feature-row .name { font-size: 13px; color: var(--text); }
.feature-row .source { color: var(--muted); font-size: 11px; margin-left: 8px; }
.badge.customized { background: rgba(217,119,6,0.12); color: var(--amber); margin-left: 8px; }
.badge.blocked { background: rgba(100,116,139,0.12); color: var(--muted); margin-left: 8px; }

.switch {
  position: relative; width: 38px; height: 22px; display: inline-block;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
  position: absolute; inset: 0; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 999px; cursor: pointer; transition: 0.15s;
}
.switch .slider::before {
  content: ""; position: absolute; width: 16px; height: 16px; left: 2px; top: 2px;
  background: #fff; border: 1px solid var(--border); border-radius: 50%; transition: 0.15s;
  box-shadow: var(--shadow-sm);
}
.switch input:checked + .slider { background: rgba(22,163,74,0.18); border-color: var(--green); }
.switch input:checked + .slider::before { transform: translateX(16px); background: var(--green); border-color: var(--green); }
.switch input:disabled + .slider { cursor: not-allowed; opacity: 0.6; }

.back-link { display: inline-block; margin-bottom: 16px; color: var(--muted); font-size: 13px; }
.empty { color: var(--muted); padding: 24px; text-align: center; }
.empty.small { padding: 8px 0; text-align: left; font-size: 12px; }

dialog {
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px; width: 420px; max-width: 90vw;
  box-shadow: 0 16px 48px rgba(15,23,42,0.18);
}
dialog.wide { width: 680px; }
dialog::backdrop { background: rgba(15,23,42,0.45); }
dialog h2 { margin-top: 0; font-size: 15px; color: var(--text); }
dialog .dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
dialog table th, dialog table td { padding: 8px 10px; font-size: 13px; }
dialog table th:first-child, dialog table td:first-child { padding-left: 0; }
dialog table th:last-child, dialog table td:last-child { padding-right: 0; }

/* --- tenant detail: breadcrumb, header, tabs (Overview/Configuration/Audit Logs/Tracing) --- */
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--muted); margin-bottom: 16px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); text-decoration: none; }
.breadcrumb .sep { color: var(--border); }
.breadcrumb .current { color: var(--text); font-weight: 600; }

.tenant-header { display: flex; align-items: flex-start; gap: 16px; }
.tenant-avatar {
  flex-shrink: 0; width: 52px; height: 52px; border-radius: 50%;
  background: rgba(37,99,235,0.1); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
}
.tenant-header-main { min-width: 0; flex: 1; }
.tenant-header-name-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.tenant-header-name-row h2 { margin: 0; font-size: 18px; color: var(--text); }
.tenant-domain-link { font-size: 12px; display: inline-block; margin-top: 2px; }
.tenant-header-meta { display: flex; flex-wrap: wrap; gap: 4px 20px; margin-top: 10px; font-size: 12px; }
.meta-item .k { color: var(--muted); }
.meta-item .v { color: var(--text); font-weight: 500; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; overflow-x: auto; }
.tab-item {
  padding: 10px 14px; font-size: 13px; font-weight: 500; color: var(--muted);
  border-bottom: 2px solid transparent; white-space: nowrap; flex-shrink: 0;
}
.tab-item:hover { color: var(--text); text-decoration: none; }
.tab-item.active { color: var(--accent); font-weight: 600; border-bottom-color: var(--accent); }

/* --- filter bar (Audit Logs / Tracing tabs) --- */
.filter-bar {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}
.filter-bar label { margin: 0 0 4px; }
.filter-bar > div { min-width: 140px; }
.filter-bar input, .filter-bar select { width: 100%; }

tr.clickable-row { cursor: pointer; }

.pagination {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border);
  flex-wrap: wrap; gap: 8px;
}

.json-block {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; font-size: 12px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow-x: auto; margin: 4px 0 0; color: var(--text);
}

/* --- trace detail: span tree --- */
.span-tree {
  border: 1px solid var(--border); border-radius: 8px; max-height: 420px; overflow-y: auto;
}
.span-row { padding: 8px 12px; border-top: 1px solid var(--border); font-size: 13px; }
.span-row:first-child { border-top: none; }
.span-row.span-error { background: rgba(220,38,38,0.05); }
.span-row-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.span-name { font-weight: 600; color: var(--text); }
.span-service { color: var(--muted); font-size: 11px; }
.span-duration { margin-left: auto; font-size: 12px; color: var(--muted); font-weight: 600; }
.span-duration.slow { color: var(--amber); }
.span-duration.err { color: var(--red); }
.span-error-msg { color: var(--red); font-size: 12px; margin: 4px 0 0; }
.span-attrs { color: var(--muted); font-size: 11px; margin-top: 4px; display: flex; flex-wrap: wrap; gap: 4px 12px; }

/* --- searchable tenant picker (New Subscription wizard, step 1) --- */
.combo { position: relative; }
.combo-list {
  position: absolute; z-index: 5; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: var(--shadow-md); max-height: 220px; overflow-y: auto;
}
.combo-item { padding: 8px 12px; font-size: 13px; cursor: pointer; }
.combo-item:hover { background: var(--panel-2); }
.combo-empty { padding: 8px 12px; font-size: 13px; color: var(--muted); }