:root {
  --bg: #f3f7fc;
  --white: #ffffff;
  --text: #0b2447;
  --muted: #5d6d83;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --border: #dbe4ef;
  --success: #15803d;
  --error: #b91c1c;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--primary); text-decoration: none; }
.app-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--white);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
}
.brand { font-size: 20px; font-weight: 800; margin-bottom: 24px; }
.sidebar nav { display: grid; gap: 8px; }
.sidebar nav a {
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text);
}
.sidebar nav a:hover { background: #eef4ff; }
.sidebar-cta {
  background: var(--primary) !important;
  color: #fff !important;
  font-weight: 700;
}
.content { padding: 28px; }
.page-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; }
.page-header h1 { margin: 0; font-size: 28px; }
.card, .auth-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(11,36,71,.05);
}
.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth-card { width: min(100%, 420px); }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}
.stat-card span { display: block; color: var(--muted); margin-bottom: 8px; }
.stat-card strong { font-size: 28px; }
.data-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: 14px; overflow: hidden; }
.data-table th, .data-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
.data-table th { background: #f8fafc; color: var(--muted); }
.form-grid { display: grid; gap: 14px; }
.form-grid label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }
.flash { padding: 12px 14px; border-radius: 10px; margin-bottom: 16px; }
.flash-success { background: #ecfdf3; color: var(--success); }
.flash-error { background: #fef2f2; color: var(--error); }
.status-badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.status-new { background: #e0f2fe; color: #0369a1; }
.status-sent { background: #ede9fe; color: #6d28d9; }
.status-taken, .status-called { background: #fef9c3; color: #a16207; }
.status-measure, .status-order { background: #dcfce7; color: #15803d; }
.status-refused, .status-returned { background: #fee2e2; color: #b91c1c; }
.status-closed, .status-no-answer { background: #e2e8f0; color: #475569; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.detail-list { display: grid; grid-template-columns: 160px 1fr; gap: 10px 16px; }
.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; }
.hint { color: var(--muted); font-size: 14px; }
.filters { margin-bottom: 16px; }
.inline-form { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.checkbox { display: flex !important; align-items: center; gap: 8px; font-weight: 500 !important; }
@media (max-width: 960px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
  .stats-grid, .grid-2, .grid-3 { grid-template-columns: 1fr; }
}