/* Основни стилове */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f0f2f5;
  color: #333;
}
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 220px;
  height: 100vh;
  background-color: #1e1e2f;
  color: white;
  padding: 20px;
  box-sizing: border-box;
}
.sidebar h2 {
  margin-top: 0;
  font-weight: 700;
  font-size: 1.8em;
  margin-bottom: 1em;
}
.sidebar nav ul {
  list-style: none;
  padding-left: 0;
}
.sidebar nav ul li {
  margin: 15px 0;
}
.sidebar nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  display: block;
  padding: 8px 12px;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}
.sidebar nav ul li a:hover,
.sidebar nav ul li a.active {
  background-color: #5858ff;
}
.main-content {
  margin-left: 220px;
  padding: 30px;
}
.screen.hidden {
  display: none;
}
.error {
  color: red;
  margin-top: 10px;
}
button {
  cursor: pointer;
  background-color: #5858ff;
  border: none;
  color: white;
  padding: 8px 15px;
  font-weight: 600;
  border-radius: 4px;
  margin-top: 10px;
}
button:disabled {
  background-color: #aaa;
  cursor: not-allowed;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.btn-logout {
  background-color: #ff4c4c;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
}
table, th, td {
  border: 1px solid #ddd;
}
th, td {
  padding: 10px;
  text-align: left;
}
th {
  background-color: #5858ff;
  color: white;
}
.product-row {
  display: flex;
  gap: 10px;
  margin-bottom: 8px;
}
.product-row input,
.product-row select {
  padding: 6px 8px;
  font-size: 1em;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.product-row input.product-name {
  flex: 2;
}
.product-row input.product-qty,
.product-row select.product-unit {
  width: 100px;
}
.remove-btn {
  background-color: #ff4c4c;
  padding: 0 8px;
  font-weight: bold;
  border-radius: 4px;
  height: 30px;
  align-self: center;
  border: none;
}
#submit-request-btn {
  margin-top: 15px;
}
#operator-name, #request-date {
  padding: 8px;
  font-size: 1em;
  width: 300px;
  margin-top: 10px;
}