body {
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", sans-serif;
  background: #f9f9f9;
}

.top-bar {
  display: flex;
  align-items: center;
  padding: 12px;
  background-color: #fff;
  border-bottom: 1px solid #ddd;
}

.back-btn {
  margin-right: 10px;
  color: #000;
  font-size: 18px;
  text-decoration: none;
}

.top-title {
  font-size: 16px;
  font-weight: bold;
}

.tab-bar {
  display: flex;
  background: #fff;
  border-bottom: 1px solid #ddd;
}

.tab-bar .tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  font-size: 14px;
  cursor: pointer;
  color: #555;
}

.tab-bar .tab.active {
  color: #007bff;
  font-weight: bold;
  border-bottom: 2px solid #007bff;
}

.container {
  padding: 15px;
  padding-bottom: 100px;
}

.submission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.submission-card {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 12px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.submission-header {
  font-weight: bold;
  margin-bottom: 8px;
}

.submission-image {
  width: 100%;
  max-height: 160px;
  object-fit: contain;
  margin: 8px 0;
  border: 1px solid #eee;
  border-radius: 4px;
}

button.btn-approve {
  background-color: #28a745;
  color: white;
  border: none;
  padding: 6px 12px;
  margin-right: 8px;
  border-radius: 4px;
}

button.btn-reject {
  background-color: #dc3545;
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
}

textarea.remark {
  width: 100%;
  margin-top: 8px;
  height: 60px;
}