:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1f2933;
  --muted: #6b7280;
  --line: #d8dde3;
  --accent: #1c6ea4;
  --error-bg: #fdecec;
  --error-ink: #8c1c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  background: var(--ink);
  color: #fff;
}

.brand { color: #fff; font-weight: 600; text-decoration: none; }

.userbar { display: flex; align-items: center; gap: 0.75rem; }
.who { color: #d7dde3; font-size: 0.9rem; }

main { max-width: 1080px; margin: 0 auto; padding: 1.5rem; }
footer { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem 2rem; color: var(--muted); font-size: 0.85rem; }

h1 { font-size: 1.5rem; margin: 0 0 0.25rem; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }
h3 { font-size: 1rem; margin: 1.25rem 0 0.5rem; }
.lead { color: var(--muted); margin-top: 0; }
.note { color: var(--muted); font-size: 0.85rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

label { display: block; font-size: 0.9rem; margin: 0.75rem 0 0.25rem; }

input[type="text"], input[type="password"], select {
  width: 100%;
  max-width: 34rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}

button {
  margin-top: 1rem;
  padding: 0.55rem 1.1rem;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  cursor: pointer;
}

button.link {
  margin: 0;
  padding: 0;
  background: none;
  color: #cfe3f2;
  text-decoration: underline;
}

.inline { display: inline; }

table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--line); }
thead th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

table.kv { max-width: 34rem; }
table.kv th { width: 14rem; color: var(--muted); font-weight: 500; }

.flash { padding: 0.7rem 0.9rem; border-radius: 6px; margin-bottom: 1rem; }
.flash.error { background: var(--error-bg); color: var(--error-ink); }