:root {
  --bg: #0f1115;
  --panel: #161a22;
  --panel-2: #1d2230;
  --border: #2a3142;
  --text: #e7e9ee;
  --muted: #8b94a7;
  --accent: #4f86ff;
  --accent-hover: #6a99ff;
  --danger: #ff5d6c;
  --success: #2dd28d;
  --warn: #ffb454;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --radius: 10px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}
a { color: var(--accent); text-decoration: none; }
code { background: #0008; padding: 1px 5px; border-radius: 4px; font-size: 12px; }

.muted { color: var(--muted); }
.error { color: var(--danger); min-height: 1.2em; margin: 8px 0 0; font-size: 13px; }

button {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  font-weight: 500;
  transition: background 0.12s;
}
button:hover { background: var(--accent-hover); }
button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
button.secondary:hover { background: var(--panel-2); }
button.danger { background: var(--danger); }
button.link {
  background: transparent;
  color: var(--accent);
  padding: 4px 6px;
}
button.link:hover { background: transparent; color: var(--accent-hover); }
button.icon {
  padding: 4px 8px;
  font-size: 13px;
}

input, select, textarea {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 8px;
  font: inherit;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: transparent;
}

label { display: block; margin-bottom: 12px; }
label > span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 12px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

/* Login */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 360px;
}
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card p { margin: 0 0 20px; }
.login-card button { width: 100%; margin-top: 8px; }

/* App shell */
.top {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 600; }
.tabs {
  display: flex;
  gap: 4px;
  flex: 1;
}
.tab {
  background: transparent;
  color: var(--muted);
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
}
.tab:hover { background: var(--panel-2); color: var(--text); }
.tab.active { background: var(--panel-2); color: var(--text); }
.user { display: flex; gap: 12px; align-items: center; }

main {
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

/* Panel */
.panel { background: transparent; }
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 12px;
}
.panel-head h2 { margin: 0; font-size: 18px; }
.panel-head .actions { display: flex; gap: 8px; align-items: center; }
.panel-head .actions input { width: 240px; }

/* Table */
.table-wrap {
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th, .data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.data-table th {
  background: var(--panel-2);
  font-weight: 500;
  color: var(--muted);
  position: sticky;
  top: 0;
}
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: var(--panel-2); }
.data-table .row-actions { display: flex; gap: 6px; justify-content: flex-end; }

.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.pill.on { background: rgba(45, 210, 141, 0.15); color: var(--success); }
.pill.off { background: rgba(255, 93, 108, 0.15); color: var(--danger); }
.pill.warn { background: rgba(255, 180, 84, 0.15); color: var(--warn); }
.pill.muted { background: var(--panel-2); color: var(--muted); }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 100;
}
.modal-card {
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-card h3 { margin: 0 0 16px; }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 16px;
}
.grid-2 .span-2 { grid-column: 1 / -1; }

/* Status */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card .val { font-size: 22px; font-weight: 600; margin-top: 4px; }
.env-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
  margin-bottom: 24px;
}
.env-grid .env-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.env-grid .env-item .k { color: var(--muted); font-size: 12px; }

h3 { margin: 24px 0 10px; font-size: 14px; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }

/* Settings */
.settings-card { margin-bottom: 16px; }
.settings-title { margin: 0 0 6px; color: var(--text); text-transform: none; letter-spacing: 0; font-size: 14px; font-weight: 600; }
.oauth-state { display: flex; align-items: center; gap: 10px; margin: 12px 0; flex-wrap: wrap; }
.oauth-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.inline-form { display: flex; gap: 8px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.inline-form input { flex: 1; min-width: 240px; }
.hint { margin: 8px 0 0; font-size: 12px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 200;
  max-width: 360px;
}
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.success { border-color: var(--success); color: var(--success); }

@media (max-width: 720px) {
  .top { flex-wrap: wrap; gap: 8px; padding: 12px 16px; }
  .tabs { order: 3; flex-basis: 100%; overflow-x: auto; }
  main { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
}