:root {
  --primary: #0f6e4f;
  --primary-dark: #0a4f38;
  --accent: #ffb703;
  --bg: #f5f7f6;
  --card: #ffffff;
  --text: #1c2b26;
  --muted: #6b7a75;
  --error: #c0392b;
  --success: #1e824c;
  --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #00a8e8;
  color: #ffffff;
  padding: 15px 5%;
  flex-wrap: wrap;
}
.navbar .brand { color: #ffffff; font-weight: 700; font-size: 1.2rem; text-decoration: none; }
.navbar nav a { color: #ffffff; text-decoration: none; margin-left: 16px; font-size: 0.95rem; font-weight: 600; }
.navbar nav a:hover { color: #f1f7fb; }
.btn-link { background: var(--accent); color: var(--primary-dark) !important; padding: 6px 14px; border-radius: 6px; font-weight: 600; }
.user-pill { margin-left: 16px; background: rgba(255,255,255,0.15); padding: 4px 12px; border-radius: 20px; font-size: 0.85rem; }

.container { max-width: 1000px; margin: 30px auto; padding: 0 20px; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
  margin-bottom: 24px;
}

h1, h2, h3 { color: var(--primary-dark); }

form label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 0.9rem; }
form input, form select, form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d3ddd8;
  border-radius: 6px;
  font-size: 1rem;
}
button, .btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  margin-top: 16px;
  display: inline-block;
  text-decoration: none;
}
button:hover, .btn:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--muted); }
.btn-danger { background: var(--error); }

.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; }
.alert-success { background: #e2f6ea; color: var(--success); border: 1px solid #b7e4c7; }
.alert-error { background: #fdecea; color: var(--error); border: 1px solid #f5c6c0; }
.field-error { color: var(--error); font-size: 0.85rem; margin-top: 2px; }

table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #e5eae7; font-size: 0.92rem; }
th { background: #eef4f1; color: var(--primary-dark); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.stat-card { background: var(--card); border-radius: var(--radius); padding: 18px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); text-align: center; }
.stat-card .value { font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.stat-card .label { color: var(--muted); font-size: 0.85rem; }

.badge { padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.badge-active, .badge-validated { background: #e2f6ea; color: var(--success); }
.badge-inactive, .badge-expired { background: #fdecea; color: var(--error); }
.badge-pending { background: #fff4d9; color: #9c6d00; }

#qr-box { text-align: center; padding: 30px; }
#qr-timer { font-size: 0.9rem; color: var(--muted); margin-top: 10px; }

.site-footer { text-align: center; padding: 20px; color: var(--muted); font-size: 0.85rem; }

.search-bar { display: flex; gap: 10px; margin-bottom: 16px; }
.search-bar input { flex: 1; }
.search-bar button { margin-top: 0; }

@media (max-width: 600px) {
  .navbar { flex-direction: column; align-items: flex-start; }
  .navbar nav { margin-top: 10px; }
}