/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  transition: background-color 0.3s, color 0.3s;
}

.container {
  max-width: 800px;
  margin: auto;
  padding: 2rem;
}

/* Light Mode Default */
body.light-mode {
  background-color: #e6f9e6;
  color: #1a4d2e;
}

body.dark-mode {
  background-color: #121212;
  color: #a5d6a7;
}

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #2e7d32;
  color: white;
  padding: 1rem 2rem;
}

.site-header h1 {
  font-size: 1.5rem;
}

#toggleModeBtn {
  background: none;
  border: 1px solid white;
  color: white;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 5px;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 1rem;
  background-color: #2e7d32;
  color: white;
  margin-top: 2rem;
}

/* Video Compressor Section */
.video-compressor {
  text-align: center;
  padding: 2rem;
  border: 2px dashed #4caf50;
  border-radius: 10px;
  background-color: rgba(76, 175, 80, 0.1);
}

.video-compressor input[type="file"] {
  margin-top: 1rem;
}

#output {
  margin-top: 1.5rem;
  font-weight: bold;
}