:root {
  --bg: #f4f6f8;
  --card: #fff;
  --text: #1a1f2c;
  --muted: #5b6575;
  --primary: #0b6e4f;
  --primary-dark: #08553d;
  --danger: #b42318;
  --border: #d8dee6;
  --accent: #e8f5ef;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar {
  background: var(--primary);
  color: #fff;
  padding: 0.85rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
}
.topbar .brand { font-weight: 700; font-size: 1.1rem; }
.topbar nav { display: flex; gap: 0.9rem; flex-wrap: wrap; }
.topbar a { color: #fff; opacity: 0.95; }
.topbar a:hover { opacity: 1; text-decoration: underline; }
.container { max-width: 1100px; margin: 1.25rem auto; padding: 0 1rem 2rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}
.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
h1, h2, h3 { margin: 0 0 0.75rem; }
.muted { color: var(--muted); font-size: 0.92rem; }
.flash {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}
.flash.ok { background: #e7f8ef; color: #0b6e4f; border: 1px solid #b7e4cd; }
.flash.err { background: #fef3f2; color: var(--danger); border: 1px solid #fecdca; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
th, td {
  text-align: left;
  padding: 0.65rem 0.5rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
label { display: block; font-size: 0.9rem; margin-bottom: 0.25rem; color: var(--muted); }
input, select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}
.form-row {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-bottom: 0.85rem;
}
.btn {
  display: inline-block;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  font: inherit;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #eef2f6; color: var(--text); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 0.35rem 0.6rem; font-size: 0.85rem; }
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login-card { width: min(400px, 100%); }
.stat {
  background: var(--accent);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}
.stat .num { font-size: 1.6rem; font-weight: 700; }
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: end;
  margin-bottom: 1rem;
}
.toolbar .grow { flex: 1 1 140px; }
details.edit { margin-top: 0.35rem; }
details.edit summary { cursor: pointer; color: var(--primary); font-size: 0.9rem; }
@media (max-width: 640px) {
  table { font-size: 0.88rem; }
  th:nth-child(n+5), td:nth-child(n+5) { display: none; }
}