:root {
  --bg: #0e1116;
  --bg-card: rgba(28, 33, 42, 0.78);
  --bg-card-hover: rgba(36, 42, 53, 0.9);
  --border: rgba(255, 255, 255, 0.08);
  --fg: #e6edf3;
  --fg-dim: #8b949e;
  --accent: #4493f8;
  --accent-strong: #1f6feb;
  --ok: #3fb950;
  --warn: #d29922;
  --err: #f85149;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.25);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { margin: 0; font-size: 18px; font-weight: 600; }
.topbar nav a {
  margin-left: 16px; padding: 6px 12px;
  border-radius: 6px; color: var(--fg-dim);
}
.topbar nav a.active { background: var(--bg-card); color: var(--fg); }

main { padding: 24px; max-width: 1280px; margin: 0 auto; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  backdrop-filter: blur(6px);
}
.card h2 { margin: 0 0 12px 0; font-size: 16px; font-weight: 600; color: var(--fg); }

.stat-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.stat {
  padding: 14px; border-radius: var(--radius);
  background: var(--bg-card-hover);
}
.stat .label { color: var(--fg-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
table th, table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
table th { color: var(--fg-dim); font-weight: 500; cursor: pointer; user-select: none; }
table tr:hover td { background: rgba(255,255,255,0.02); }

button {
  background: var(--accent);
  color: white; border: none;
  padding: 6px 14px; border-radius: 6px;
  cursor: pointer; font-size: 13px;
  font-weight: 500;
}
button:hover { background: var(--accent-strong); }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--border); }
button.secondary:hover { background: var(--bg-card-hover); }
button.danger { background: var(--err); }
button.danger:hover { background: #c93838; }

input, select, textarea {
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge.pending  { background: rgba(210, 153, 34, 0.2);  color: var(--warn); }
.badge.approved { background: rgba(63, 185, 80, 0.2);   color: var(--ok); }
.badge.rejected { background: rgba(248, 81, 73, 0.2);   color: var(--err); }
.badge.online   { background: rgba(63, 185, 80, 0.2);   color: var(--ok); }
.badge.offline  { background: rgba(139, 148, 158, 0.2); color: var(--fg-dim); }
.badge.mode-merge   { background: rgba(68, 147, 248, 0.2); color: var(--accent); }
.badge.mode-seed    { background: rgba(63, 185, 80, 0.2); color: var(--ok); }
.badge.mode-recover { background: rgba(210, 153, 34, 0.2); color: var(--warn); }

.row-actions { display: flex; gap: 6px; }
.row-actions button { padding: 4px 10px; font-size: 12px; }

.error-banner {
  padding: 14px 18px;
  background: rgba(248, 81, 73, 0.15);
  border: 1px solid var(--err);
  color: var(--err);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.empty-state {
  padding: 32px;
  text-align: center;
  color: var(--fg-dim);
}

.filter-bar {
  display: flex; gap: 8px; align-items: center;
  margin-bottom: 12px;
}
.filter-bar input, .filter-bar select { max-width: 200px; }

.muted { color: var(--fg-dim); }
.mono  { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }

/* --- Login form --- */
.login-shell {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 10%, rgba(68, 147, 248, 0.12), transparent 50%),
    radial-gradient(circle at 80% 90%, rgba(63, 185, 80, 0.10), transparent 50%),
    var(--bg);
}
.login-card {
  width: 100%; max-width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.login-card h1 {
  margin: 0 0 4px 0; font-size: 20px; font-weight: 600;
  text-align: center;
}
.login-card .sub {
  margin: 0 0 24px 0; text-align: center; color: var(--fg-dim); font-size: 13px;
}
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-form label {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--fg-dim); margin-bottom: 4px; display: block;
}
.login-form input {
  font-size: 14px; padding: 10px 12px; border-radius: 8px;
}
.login-form button {
  margin-top: 8px;
  padding: 10px 16px;
  font-size: 14px; font-weight: 600;
}
.login-error {
  margin-top: 14px;
  padding: 10px 12px;
  background: rgba(248, 81, 73, 0.12);
  border: 1px solid var(--err);
  color: var(--err);
  border-radius: 8px;
  font-size: 12px;
}
.login-footer {
  margin-top: 18px; text-align: center; font-size: 11px; color: var(--fg-dim);
}

/* hide the main app until logged in */
.hidden-while-locked { display: none !important; }