body {
  font-family: "Segoe UI", Roboto, sans-serif;
  background: #f5f7fa;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

main {
  background: #fff;
  padding: 2rem 3rem;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  max-width: 680px;
  text-align: center;
}

h1 {
  font-size: 1.5rem;
  color: #0b5ed7; /* azul institucional */
}

p {
  color: #555;
  font-size: 0.95rem;
}

.uploader {
  margin: 1.2rem 0;
  display:flex;
  gap:8px;
  align-items:center;
  justify-content:center;
}

input[type="file"] {
  padding: 0.4rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  background: #f9f9f9;
}

button {
  background: #0b5ed7;
  color: white;
  border: none;
  padding: 0.6rem 1.2rem;
  margin-left:8px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.2s;
}

button:hover { background:#084ea8; }

#progress { margin-top: 1rem; font-weight: 600; color: #0b5ed7; }
#result { margin-top: 1rem; color: #1b4332; }
#note { margin-top:12px; color:#666; font-size:0.85rem; }