:root {
  --primary: #2563eb;
  --primary-dark: #1e3fa9;
  --light: #f8fafc;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --radius: 12px;
  --shadow: 0 4px 18px rgba(0,0,0,0.08);
}

body {
  margin: 0;
  font-family: "Poppins", sans-serif;
  background: var(--light);
  color: var(--text);
}

/* Topbar */
.topbar {
  width: 100%;
  background: var(--primary);
  padding: 18px 28px;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
}

.brand {display:flex; gap:12px; align-items:center;}
.logo {
  background: rgba(255,255,255,0.2);
  padding: 12px;
  border-radius: 8px;
  font-size: 22px;
}
.brand-title {margin:0; font-size:20px; font-weight:600;}
.brand-sub {margin:0; font-size:13px; opacity:0.9;}

.top-actions input {
  padding: 10px 12px;
  border-radius: 8px;
  border: none;
}
.top-actions {display:flex; gap:10px}

/* Buttons */
.btn {
  padding: 10px 14px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-weight:500;
}

.btn.primary {background: var(--primary-dark); color:white;}
.btn.outline {background:white; border:1px solid #d5e1f5; color: var(--primary);}
.btn.small {padding: 6px 10px; font-size: 14px;}
.btn.tiny {padding: 4px 7px; font-size: 12px;}

/* Layout */
.container {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  padding: 20px;
}

/* Sidebar */
.sidebar nav {
  display:flex;
  flex-direction:column;
  gap:6px;
}
.nav-link {
  padding: 12px 14px;
  border-radius: 8px;
  text-decoration:none;
  color: var(--muted);
}
.nav-link.active, .nav-link:hover {
  background: #e6ecff;
  color: var(--primary);
}

/* Panels */
.panel {
  background: var(--card);
  padding: 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Form */
.row {display:flex; flex-direction:column; gap:6px;}
.grid {display:grid; grid-template-columns:1fr 1fr; gap:16px;}

input, select, textarea {
  padding: 10px;
  border: 1px solid #dce3ee;
  border-radius: 8px;
  font-size: 14px;
}

.form-actions {display:flex; gap:12px; margin-top:10px}

/* Table */
.table-wrap {overflow:auto; border-radius:10px;}
table {width:100%; border-collapse:collapse;}
thead th {
  background:#f1f5ff;
  padding:12px;
  text-align:left;
}
tbody td {
  padding:12px;
  border-bottom:1px solid #e5e7eb;
}

/* Footer */
.footer {
  text-align:center;
  padding:20px;
  color: var(--muted);
}

/* Responsive */
@media (max-width:900px){
  .container{grid-template-columns:1fr;}
  .grid{grid-template-columns:1fr;}
}