* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

body {
  background-color: #f7f9fb;
  color: #333;
  padding: 2rem;
}

.container {
  max-width: 800px;
  margin: auto;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 2rem;
  text-align: center;
}

h1 {
  margin-bottom: 1rem;
  color: #4CAF50;
}

.upload-box {
  margin: 1.5rem 0;
}

input[type="file"] {
  display: none;
}

label[for="videoInput"] {
  background-color: #4CAF50;
  color: white;
  padding: 0.7rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
}

video {
  margin-top: 1rem;
  max-width: 100%;
  border: 2px solid #ddd;
  border-radius: 10px;
}

.actions {
  margin-top: 1.5rem;
}

.actions button {
  padding: 0.6rem 1.4rem;
  margin: 0 0.5rem;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s ease;
}

#analyzeBtn {
  background-color: #2196F3;
  color: white;
}

#downloadBtn {
  background-color: #9E9E9E;
  color: white;
}

#downloadBtn:enabled {
  background-color: #4CAF50;
}

.output {
  margin-top: 2rem;
  text-align: left;
}

#landmarkOutput {
  background-color: #f0f0f0;
  padding: 1rem;
  border-radius: 10px;
  height: 200px;
  overflow: auto;
  white-space: pre-wrap;
}