:root {
  --primary: #4a90e2;
  --secondary: #26bc1b;
  --danger: #e94e77;
  --bg: #f5f7fa;
  --card-bg: #fff;
  --text: #333;
}
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { 
    text-decoration: none; 
}
.header {
  background: var(--primary);
  color: #fff;
  padding: 1rem;
  text-align: center;
}
.container {
  max-width: 900px;
  margin: 2rem auto;
  display: grid;
  gap: 1.5rem;
}
.panel {
  display: grid;
  gap: 1.5rem;
}
.card {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  overflow: hidden;
}
.card-header {
  background: var(--bg);
  padding: 0.75rem 1rem;
  font-weight: bold;
  border-bottom: 1px solid #ddd;
}
.card-body {
  padding: 1rem;
}
.form-inline {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.form-inline input[type="text"],
.form-inline input[type="file"] {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.item-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.item-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.btn {
  padding: 0.4rem 0.75rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }