:root {
  --primary-color: #4a90e2;
  --bg-color: #f5f7fa;
  --text-color: #333;
  --card-bg: #fff;
  --border-radius: 8px;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
}

.admin-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: #2c3e50;
}

header a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: bold;
}

/* Upload Section */
.upload-section {
  background: var(--card-bg);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  margin-bottom: 40px;
  text-align: center;
}

.upload-box {
  border: 2px dashed #ccc;
  border-radius: var(--border-radius);
  padding: 40px;
  transition: all 0.3s ease;
}

.upload-box.drag-over {
  border-color: var(--primary-color);
  background-color: rgba(74, 144, 226, 0.05);
}

.primary-btn {
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  padding: 10px 20px;
  font-size: 1rem;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 15px;
  transition: background-color 0.3s;
}

.primary-btn:hover {
  background-color: #357abd;
}

.action-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 15px;
}

.camera-btn {
  background-color: #27ae60;
}

.camera-btn:hover {
  background-color: #219653;
}

#uploadStatus {
  margin-top: 15px;
  font-weight: bold;
}

/* Gallery Section */
.gallery-section h2 {
  margin-bottom: 20px;
  font-size: 1.8rem;
  border-bottom: 2px solid #ddd;
  padding-bottom: 10px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.img-card {
  background: var(--card-bg);
  padding: 10px;
  border-radius: var(--border-radius);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
}

.img-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 10px;
}

.delete-btn {
  background-color: #e74c3c;
  color: #fff;
  border: none;
  padding: 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.delete-btn:hover {
  background-color: #c0392b;
}