:root {
  --bg: #f4f7fb;
  --fg: #1e293b;
  --muted: #64748b;
  --primary: #0f62fe;
  --card: #ffffff;
  --border: #dbe4ef;
  --danger: #b42318;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
.container { max-width: 1100px; margin: 0 auto; padding: 1rem; }
.topbar { background: #0b1220; color: white; }
.bar-content { display:flex; justify-content:space-between; align-items:center; gap:1rem; }
.brand, .topbar a { color: white; text-decoration:none; margin-right: 1rem; }
.inline { display:inline; }
.link-button {
  background:none; border:none; color:white; cursor:pointer; padding:0; font:inherit;
}
.hero { padding: 1rem 0; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  padding: 1rem;
  margin: 1rem 0;
}
.card.narrow { max-width: 420px; }
.card.small { max-width: 620px; }
.grid {
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap:1rem;
}
.stats {
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap:1rem;
}
.stat .label { color: var(--muted); font-size:.9rem; }
.stat .value { font-size:1.4rem; font-weight:700; margin-top:.35rem; }
label { display:block; font-weight:600; margin:.3rem 0; }
input, select, button, .button {
  width:100%;
  padding:.75rem .9rem;
  border-radius:10px;
  border:1px solid var(--border);
  font:inherit;
}
button, .button {
  background: var(--primary);
  color:white;
  border:none;
  text-align:center;
  text-decoration:none;
  display:inline-block;
  width:auto;
  min-width:150px;
  cursor:pointer;
}
.button.secondary { background:#334155; }
.danger { background: var(--danger); }
.validation { color: var(--danger); margin:.5rem 0; }
.notice {
  background:#ecfdf3; border:1px solid #abefc6; color:#067647;
  padding:.75rem 1rem; border-radius:10px; margin-top:1rem;
}
table { width:100%; border-collapse: collapse; }
th, td { padding:.65rem; border-bottom:1px solid var(--border); text-align:left; vertical-align:top; }
.kv { display:grid; grid-template-columns: 180px 1fr; gap:.5rem 1rem; }
.actions { display:flex; gap:.75rem; flex-wrap:wrap; margin-top:1rem; }
.checks { display:flex; gap:1rem; flex-wrap:wrap; margin: 1rem 0; }
.inline-form { display:flex; gap:.75rem; align-items:center; flex-wrap:wrap; }
.inline-form input { width:auto; flex:1; min-width:220px; }
.muted { color:var(--muted); }
@media (max-width:700px) {
  .kv { grid-template-columns: 1fr; }
  .bar-content { flex-direction:column; align-items:flex-start; }
}

.main-nav { display:flex; align-items:center; gap:.75rem; flex-wrap:wrap; }
.nav-dropdown { position:relative; display:inline-block; }
.nav-group { color:white; cursor:pointer; padding:.25rem .4rem; }
.nav-dropdown-content {
  display:none;
  position:absolute;
  top:100%;
  left:0;
  background:#0b1220;
  min-width:220px;
  border:1px solid rgba(255,255,255,.15);
  border-radius:10px;
  padding:.5rem;
  z-index:1000;
}
.nav-dropdown-content a { display:block; margin:0; padding:.55rem .75rem; white-space:nowrap; }
.nav-dropdown:hover .nav-dropdown-content { display:block; }
.notice-error { background:#fef3f2; border-color:#fecdca; color:#b42318; }
.list { list-style:none; padding-left:0; }
.list li { padding:.45rem 0; border-bottom:1px solid var(--border); }