body { font-family: sans-serif; background: #f4f4f9; color: #333; margin: 0; padding: 20px; }
.container { max-width: 900px; margin: 0 auto; }
header { text-align: center; margin-bottom: 40px; }
.drop-zone { border: 3px dashed #ccc; padding: 50px; text-align: center; background: white; border-radius: 10px; transition: 0.3s; cursor: pointer; }
.drop-zone.hover { border-color: #007bff; background: #eef5ff; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; margin-top: 40px; }
.card { background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); display: flex; justify-content: center; align-items: center; }
.modal-content { background: white; padding: 30px; border-radius: 10px; width: 400px; }
.hidden { display: none; }
input[type="text"] { width: 100%; padding: 10px; margin: 10px 0; box-sizing: border-box; }
.actions { display: flex; justify-content: space-between; margin-top: 20px; }
button { padding: 10px 15px; cursor: pointer; border: none; border-radius: 5px; }
.primary { background: #007bff; color: white; }
.delete { background: #ff4d4d; color: white; font-size: 0.8rem; margin-top: 10px;}
.link { display: block; color: #007bff; text-decoration: none; margin-bottom: 10px; }