:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #2563eb;
  --brand-ink: #1d4ed8;
  --ok: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #f1f5f9;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ── */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; background: var(--bg); color: #cbd5e1;
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand { padding: 18px 20px; font-weight: 700; color: #fff; font-size: 16px; letter-spacing: .3px; }
.sidebar .brand span { color: #60a5fa; }
.sidebar nav { padding: 8px; flex: 1; }
.sidebar nav a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px;
  color: #cbd5e1; margin-bottom: 2px; font-weight: 500;
}
.sidebar nav a:hover { background: var(--bg-soft); color: #fff; text-decoration: none; }
.sidebar nav a.active { background: var(--brand); color: #fff; }
.sidebar .nav-section { padding: 14px 12px 6px; font-size: 11px; text-transform: uppercase; color: #64748b; letter-spacing: .08em; }
.sidebar .userbox { padding: 12px 16px; border-top: 1px solid #1e293b; font-size: 12px; }
.sidebar .userbox small { color: #64748b; display: block; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: #fff; border-bottom: 1px solid var(--line); padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.topbar h1 { font-size: 18px; margin: 0; }
.content { padding: 24px; max-width: 1100px; width: 100%; }

/* ── Cards / panels ── */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 18px; }
.card h2 { margin: 0 0 12px; font-size: 15px; }
.grid { display: grid; gap: 16px; }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 800px) { .grid.cols-4, .grid.cols-2 { grid-template-columns: 1fr 1fr; } }

.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stat .num { font-size: 28px; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }

/* ── Tables ── */
table { width: 100%; border-collapse: collapse; background: #fff; }
.table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { background: #f8fafc; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .04em; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

/* ── Badges ── */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.gray { background: #f1f5f9; color: #475569; }
.badge.blue { background: #dbeafe; color: #1d4ed8; }
.badge.green { background: #dcfce7; color: #15803d; }
.badge.amber { background: #fef3c7; color: #b45309; }
.badge.red { background: #fee2e2; color: #b91c1c; }
.badge.purple { background: #ede9fe; color: #6d28d9; }

/* ── Forms ── */
label { display: block; font-weight: 600; margin: 12px 0 4px; font-size: 13px; }
input[type=text], input[type=email], input[type=password], input[type=number],
select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
  font: inherit; background: #fff; color: var(--ink);
}
textarea { min-height: 120px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--brand); }
.form-row { display: flex; gap: 14px; }
.form-row > div { flex: 1; }
.help { color: var(--muted); font-size: 12px; margin-top: 3px; }
.checkbox { display: flex; align-items: center; gap: 8px; }
.checkbox input { width: auto; }

/* ── Buttons ── */
.btn {
  display: inline-block; padding: 9px 16px; border-radius: 8px; border: 1px solid transparent;
  background: var(--brand); color: #fff; font-weight: 600; cursor: pointer; font: inherit; font-weight: 600;
}
.btn:hover { background: var(--brand-ink); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--ink); border-color: var(--line); }
.btn.secondary:hover { background: #f8fafc; }
.btn.danger { background: var(--danger); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.btn-row { display: flex; gap: 10px; align-items: center; margin-top: 16px; }

/* ── Flash ── */
.flash { padding: 11px 14px; border-radius: 8px; margin-bottom: 14px; font-weight: 500; }
.flash.success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.flash.error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

/* ── Filters / toolbar ── */
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar input, .toolbar select { width: auto; }
.spacer { flex: 1; }

/* ── Pagination ── */
.pagination { display: flex; gap: 6px; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 11px; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
.pagination .current { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ── Auth ── */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; background: var(--bg); padding: 20px; }
.auth-card { background: #fff; border-radius: 14px; padding: 32px; width: 100%; max-width: 380px; }
.auth-card .brand { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.auth-card .brand span { color: var(--brand); }
.auth-card p.sub { color: var(--muted); margin-top: 0; }

.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.key-reveal { background: #0f172a; color: #4ade80; padding: 12px; border-radius: 8px; word-break: break-all; }
.thread { display: flex; flex-direction: column; gap: 12px; }
.msg { padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line); }
.msg.admin { background: #eff6ff; }
.msg.requester { background: #f8fafc; }
.msg.note { background: #fffbeb; border-color: #fde68a; }
.msg .meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; }