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

/* General layout */
body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  color: #333;
}

/* Header */
.header {
  background: #222;
  color: gold;
  padding: 15px;
  text-align: center;
  font-size: 18px;
  font-weight: bold;
}

/* Sidebar */
.sidebar {
  background: #111;
  padding: 10px;
  display: flex;
  overflow-x: auto;
  white-space: nowrap;
}
.sidebar a {
  display: inline-block;
  padding: 10px 15px;
  color: #eee;
  text-decoration: none;
  font-size: 14px;
}
.sidebar a:hover {
  background: gold;
  color: #111;
  border-radius: 5px;
}

/* Content */
.content {
  padding: 15px;
}

/* Cards */
.cards {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.card {
  background: white;
  border: 1px solid #ddd;
  padding: 15px;
  flex: 1 1 100%;
  text-align: center;
  font-weight: bold;
  border-radius: 8px;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  background: white;
  border-radius: 8px;
  overflow: hidden;
}
th, td {
  border: 1px solid #ddd;
  padding: 10px;
  font-size: 14px;
  text-align: center;
}
th {
  background: #222;
  color: gold;
}
tr:nth-child(even) {
  background: #f9f9f9;
}

/* Buttons */
a.action-btn {
  display: inline-block;
  padding: 6px 10px;
  margin: 2px;
  font-size: 13px;
  border-radius: 5px;
  text-decoration: none;
  color: #fff;
}
a.approve { background: green; }
a.decline { background: red; }