body {
  font-family: Vazir, IRANSans, sans-serif;
  direction: rtl;
  background: #f6fff9;
  margin: 0;
  color: #1b1b1b;
}

.header {
  background: #2e7d32;
  color: #fff;
  padding: 14px 20px;
  font-size: 18px;
  font-weight: 600;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
}

.container {
  display: flex;
  margin-top: 70px;
}

.sidebar {
  width: 220px;
  background: #b9f6ca;
  padding: 20px;
  min-height: 100vh;
  box-shadow: 2px 0 6px rgba(0,0,0,0.1);
}

.sidebar ul {
  list-style: none;
  padding: 0;
}

.sidebar ul li {
  margin: 10px 0;
}

.sidebar ul li a {
  text-decoration: none;
  color: #2e7d32;
  font-weight: 500;
  cursor: pointer;
}

.sidebar ul li a:hover {
  color: #00c853;
}

.content {
  flex: 1;
  padding: 20px;
}

.card {
  background: #fff;
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  display: none;
}

.card.active {
  display: block;
}

.card h3 {
  margin-top: 0;
  color: #2e7d32;
}

.btn {
  background: #2e7d32;
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 8px;
  font-size: 14px;
}

.btn:hover {
  background: #00c853;
}

input, select, textarea {
  border: 1px solid #b9f6ca;
  border-radius: 6px;
  padding: 6px 8px;
  width: 100%;
  margin-bottom: 10px;
  font-size: 14px;
}