:root {
  --bg: #0b1020;
  --panel: #12182d;
  --panel-2: #161f3d;
  --text: #f4f7ff;
  --muted: #b8c1d9;
  --line: #293456;
  --accent: #6ea8fe;
  --success: #198754;
  --danger: #dc3545;
  --warning: #d39e00;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #0b1020 0%, #0d1326 100%);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px;
}
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(10, 14, 27, 0.95);
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
}
.topbar-inner {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}
.brand { font-weight: 700; }
.nav { display: flex; gap: 12px; flex-wrap: wrap; }
.nav-link {
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--muted);
}
.nav-link.active, .nav-link:hover {
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
}
.topbar-user {
  display: flex;
  gap: 12px;
  align-items: center;
}
h1, h2, h3 { margin-top: 0; }
.card {
  background: rgba(18, 24, 45, 0.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 18px 48px rgba(0,0,0,0.18);
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 20px 0;
}
.stat-card {
  background: rgba(18, 24, 45, 0.92);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
}
.stat-card strong {
  display: block;
  font-size: 22px;
  margin-bottom: 6px;
}
.stat-card span { color: var(--muted); }
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.field { display: block; margin-bottom: 14px; }
.field span {
  display: block;
  color: var(--muted);
  margin-bottom: 6px;
}
input, textarea, select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0d1429;
  color: var(--text);
  padding: 12px 14px;
}
textarea { resize: vertical; min-height: 120px; }
.stack > * + * { margin-top: 12px; }
.button {
  appearance: none;
  border: none;
  cursor: pointer;
  border-radius: 12px;
  padding: 11px 16px;
  background: var(--accent);
  color: #071225;
  font-weight: 700;
}
.button:hover { filter: brightness(1.05); text-decoration: none; }
.button-light {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.button-danger { background: var(--danger); color: white; }
.button-warning { background: var(--warning); color: #191400; }
.inline-form { display: inline-block; margin: 0; }
.auth-card {
  max-width: 520px;
  margin: 72px auto;
  padding: 28px;
  border-radius: 20px;
  background: rgba(18, 24, 45, 0.95);
  border: 1px solid var(--line);
}
.notice {
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
}
.notice-success { background: rgba(25, 135, 84, 0.15); border-color: rgba(25, 135, 84, 0.4); }
.notice-error { background: rgba(220, 53, 69, 0.14); border-color: rgba(220, 53, 69, 0.35); }
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.table th, .table td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.table th {
  text-align: left;
  color: var(--muted);
}
@media (max-width: 980px) {
  .grid-2, .stats-grid { grid-template-columns: 1fr; }
  .topbar-inner, .page-head { flex-direction: column; align-items: flex-start; }
}