body {
  font-family: 'Montserrat', sans-serif;
  background-color: #F5F5F5;
  color: #2A2D34;
  margin: 0;
  padding: 0;
}

header {
  background-color: #2A2D34;
  color: white;
  padding: 1rem 2rem;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
}

main {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
  padding: 2rem;
}

.card {
  background: white;
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card h2 {
  margin-top: 0;
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: #FF6B6B;
}

button, input[type="file"] {
  background-color: #4ECDC4;
  border: none;
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  color: #fff;
  font-weight: 600;
  transition: background 0.3s;
  margin-top: 0.5rem;
}

input[type="file"] {
  background: none;
  color: #2A2D34;
  font-weight: normal;
  cursor: pointer;
}

button:hover {
  background-color: #3bb3a9;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

th, td {
  border-bottom: 1px solid #ddd;
  padding: 0.75rem;
  text-align: left;
  font-size: 0.9rem;
}

th {
  background-color: #f0f0f0;
  font-weight: 600;
}

.error {
  background-color: #ffecec;
  color: #d93025;
  padding: 0.5rem;
  margin-top: 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
}