:root, [data-theme="dark"] {
  --bg: #0b1220;
  --sidebar-bg: #0f172a;
  --border: #1e293b;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --card-bg: #111827;
  --input-bg: #1e293b;
  --input-border: #334155;
  --input-text: #e2e8f0;
  --table-head-bg: #0f172a;
  --row-border: #1e293b;
  --row-hover: #16213a;
  --btn-bg: #6366f1;
  --btn-text: #ffffff;
  --link-text: #cbd5e1;
  --link-hover-bg: #1e293b;
  --link-active-bg: #1e293b;
  --pill-green-bg: #064e3b;
  --pill-green-text: #4ade80;
  --pill-gray-bg: #1e293b;
  --pill-gray-text: #cbd5e1;
  --pill-red-bg: #450a0a;
  --pill-red-text: #fca5a5;
  --success-text: #4ade80;
  --danger-text: #f87171;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --sidebar-bg: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --card-bg: #ffffff;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --input-text: #0f172a;
  --table-head-bg: #f8fafc;
  --row-border: #f1f5f9;
  --row-hover: #f8fafc;
  --btn-bg: #0f172a;
  --btn-text: #ffffff;
  --link-text: #334155;
  --link-hover-bg: #f1f5f9;
  --link-active-bg: #f1f5f9;
  --pill-green-bg: #dcfce7;
  --pill-green-text: #15803d;
  --pill-gray-bg: #f1f5f9;
  --pill-gray-text: #475569;
  --pill-red-bg: #fee2e2;
  --pill-red-text: #b91c1c;
  --success-text: #15803d;
  --danger-text: #b91c1c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.15s ease, color 0.15s ease;
}
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  flex-shrink: 0;
  border-right: 1px solid var(--border);
  background: var(--sidebar-bg);
  padding: 16px;
  display: flex;
  flex-direction: column;
}
.sidebar .brand { font-weight: 600; font-size: 18px; padding: 0 8px; margin-bottom: 20px; }
.sidebar a {
  display: block;
  padding: 8px;
  border-radius: 6px;
  color: var(--link-text);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 2px;
}
.sidebar a:hover { background: var(--link-hover-bg); }
.sidebar a.active { background: var(--link-active-bg); color: var(--text); font-weight: 500; }
.sidebar-spacer { flex: 1; }
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  cursor: pointer;
  width: 100%;
}
.theme-toggle:hover { background: var(--link-hover-bg); }
main { flex: 1; padding: 32px;}
h1 { font-size: 24px; font-weight: 600; margin: 0 0 24px; }
h2 { font-size: 16px; font-weight: 500; margin: 0 0 12px; }
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 32px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
.stat-label { font-size: 13px; color: var(--text-muted); }
.stat-value { font-size: 24px; font-weight: 600; margin-top: 4px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead { background: var(--table-head-bg); text-align: left; color: var(--text-muted); }
th, td { padding: 8px 16px; }
tbody tr { border-top: 1px solid var(--row-border); }
tbody tr:hover { background: var(--row-hover); }
.table-wrap { background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; overflow-x: auto; }
.table-wrap table { border-radius: 8px; overflow: hidden; }
td.actions-cell { white-space: nowrap; }
.empty { text-align: center; color: var(--text-muted); padding: 24px; }
input, select, textarea {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--input-text);
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
textarea { font-family: ui-monospace, monospace; font-size: 12px; }
label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; }
.field { margin-bottom: 12px; }
.row { display: flex; gap: 8px; }
button, .btn {
  background: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-small { padding: 4px 10px; font-size: 12px; }
.header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.pill { padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.pill-green { background: var(--pill-green-bg); color: var(--pill-green-text); }
.pill-gray { background: var(--pill-gray-bg); color: var(--pill-gray-text); }
.pill-red { background: var(--pill-red-bg); color: var(--pill-red-text); }
.msg-success { color: var(--success-text); font-size: 14px; }
.step-box { border: 1px solid var(--border); border-radius: 6px; padding: 12px; margin-bottom: 12px; }
.step-box .step-header { display: flex; justify-content: space-between; margin-bottom: 8px; }
.link-muted { color: var(--link-text); font-size: 14px; text-decoration: underline; background: none; border: none; padding: 0; cursor: pointer; }


/* Login page */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { width: 100%; max-width: 380px; }
.auth-card .brand { font-weight: 600; font-size: 22px; margin-bottom: 4px; }