:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-border: #e2e4e9;
  --color-text: #1f2430;
  --color-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-success-bg: #ecfdf3;
  --color-success-text: #087443;
  --color-error-bg: #fef2f2;
  --color-error-text: #b91c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.topbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.topbar-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar .brand {
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.topbar nav {
  display: flex;
  gap: 16px;
  flex: 1;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-muted);
  font-size: 14px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

h1 { font-size: 22px; margin: 0 0 8px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 20px;
  display: block;
}

.card h2 { margin: 0 0 8px; font-size: 16px; }
.card-count { font-size: 28px; font-weight: 700; margin: 0 0 8px; }
.card p:last-child { color: var(--color-muted); font-size: 13px; margin: 0; }

.btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 9px 16px;
  border-radius: 6px;
  border: none;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: var(--color-primary-dark); text-decoration: none; }

.btn-small { padding: 5px 10px; font-size: 13px; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
}

.data-table th, .data-table td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.data-table th {
  background: #fafbfc;
  color: var(--color-muted);
  font-weight: 600;
}

.data-table tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.badge-success { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-muted { background: #f3f4f6; color: var(--color-muted); }

.entity-form, .login-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 24px;
  max-width: 480px;
}

.entity-form label, .login-box label {
  display: block;
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.entity-form input, .entity-form select, .entity-form textarea,
.login-box input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}

.entity-form textarea { resize: vertical; }

.hidden { display: none !important; }

.field-error {
  color: var(--color-error-text);
  font-size: 13px;
  margin: -8px 0 12px;
}

.alert {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

.alert-success { background: var(--color-success-bg); color: var(--color-success-text); }
.alert-error { background: var(--color-error-bg); color: var(--color-error-text); }

.login-box {
  margin: 60px auto;
}

.login-box h1 { text-align: center; }