* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  background: #f3f4f8;
  color: #222;
}

.wrapper { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 230px;
  background: #1a1f36;
  color: #fff;
  padding: 20px 0;
  flex-shrink: 0;
}
.sidebar .logo {
  font-size: 20px;
  font-weight: bold;
  padding: 0 20px 20px 20px;
  border-bottom: 1px solid #2d3454;
  margin-bottom: 10px;
}
.sidebar nav a {
  display: block;
  color: #c7cbe0;
  text-decoration: none;
  padding: 12px 20px;
  font-size: 15px;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: #2d3454;
  color: #fff;
  border-left: 3px solid #5b8def;
}

/* Content */
.content {
  flex: 1;
  padding: 30px 40px;
}
h1 { margin-bottom: 20px; font-size: 24px; color: #1a1f36; }
h2 { margin: 25px 0 15px; font-size: 19px; color: #1a1f36; }
h3 { margin-bottom: 12px; font-size: 16px; }

/* Stat cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}
.stat-card {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}
.stat-number { display: block; font-size: 28px; font-weight: bold; color: #5b8def; }
.stat-label { font-size: 13px; color: #777; }

.two-col { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  background: #fff;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  max-width: 900px;
}
.form-group { display: flex; flex-direction: column; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 13px; font-weight: 600; margin-bottom: 6px; color: #444; }
.form-group input, .form-group select, .form-group textarea {
  padding: 10px 12px;
  border: 1px solid #d8dae5;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: #5b8def;
}

.btn {
  display: inline-block;
  background: #5b8def;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  margin-right: 8px;
  margin-top: 5px;
}
.btn:hover { background: #4472d1; }
.btn-secondary { background: #b0b4c3; }
.btn-secondary:hover { background: #949aab; }

/* Filter bar */
.filter-bar {
  background: #fff;
  padding: 16px 20px;
  border-radius: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}
.filter-bar input, .filter-bar select {
  padding: 8px 10px;
  border: 1px solid #d8dae5;
  border-radius: 6px;
  font-size: 13px;
}
.filter-bar label { font-size: 13px; color: #555; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
.data-table {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}
th, td {
  text-align: left;
  padding: 12px 14px;
  font-size: 14px;
  border-bottom: 1px solid #eee;
}
th { background: #f7f8fc; color: #444; font-size: 13px; text-transform: uppercase; }
tr:hover td { background: #fafbff; }
td a { color: #5b8def; text-decoration: none; margin-right: 8px; font-size: 13px; }
td a:hover { text-decoration: underline; }

/* Badges */
.badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-active { background: #e3f7e8; color: #1c9a4b; }
.badge-inactive { background: #fbe3e3; color: #c92a2a; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-size: 14px; }
.alert-success { background: #e3f7e8; color: #1c9a4b; }
.alert-error { background: #fbe3e3; color: #c92a2a; }

/* Detail view */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: #fff;
  padding: 22px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  margin-bottom: 15px;
  font-size: 14px;
}
.detail-grid .full { grid-column: 1 / -1; }
.detail-grid strong { color: #1a1f36; margin-right: 6px; }

/* Comments */
.comment-form {
  background: #fff;
  padding: 18px;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 600px;
}
.comment-form input, .comment-form textarea {
  padding: 10px 12px;
  border: 1px solid #d8dae5;
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
}
.comment-list { margin-top: 15px; display: flex; flex-direction: column; gap: 10px; max-width: 600px; }
.comment-item {
  background: #fff;
  padding: 14px 16px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}
.comment-item strong { color: #1a1f36; }
.comment-date { float: right; font-size: 12px; color: #999; }
.comment-item p { margin-top: 6px; font-size: 14px; color: #333; }