:root {
  --bg-color: #ffffff;
  --container-bg: #f8f9fa;
  --text-color: #212529;
  --accent-color: #007bff;
  --accent-hover: #0056b3;
  --toggle-btn-bg: #e9ecef;
  --toggle-btn-text: #495057;
  --border-color: #dee2e6;
  --progress-bg: #e9ecef;
}

body.dark-mode {
  --bg-color: #121212;
  --container-bg: #1e1e1e;
  --text-color: #e0e0e0;
  --accent-color: #375a7f;
  --accent-hover: #2b4764;
  --toggle-btn-bg: #333;
  --toggle-btn-text: #f8f9fa;
  --border-color: #444;
  --progress-bg: #333;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: all 0.3s ease;
  min-height: 100vh;
}

.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}

#theme-button {
  padding: 10px 20px;
  border-radius: 25px;
  border: 1px solid var(--border-color);
  background-color: var(--toggle-btn-bg);
  color: var(--toggle-btn-text);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

header {
  text-align: center;
  margin: 60px 0 40px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

header p {
  opacity: 0.8;
}

.container {
  width: 90%;
  max-width: 600px;
  background-color: var(--container-bg);
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  margin-bottom: 50px;
}

.upload-section {
  text-align: center;
  border: 2px dashed var(--border-color);
  border-radius: 15px;
  padding: 40px 20px;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

.upload-section:hover {
  border-color: var(--accent-color);
}

.upload-label {
  cursor: pointer;
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.hidden {
  display: none !important;
}

#loading {
  text-align: center;
  margin: 20px 0;
  font-weight: 500;
}

#result-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 30px;
}

#image-preview {
  width: 100%;
  max-width: 300px;
  border-radius: 15px;
  margin-bottom: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

#label-container {
  width: 100%;
}

.result-bar-wrapper {
  margin-bottom: 15px;
}

.result-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
  font-weight: 500;
}

.progress-bar-container {
  width: 100%;
  height: 20px;
  background-color: var(--progress-bg);
  border-radius: 10px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--accent-color);
  transition: width 0.5s ease-out;
}

#disqus_thread {
  width: 90%;
  max-width: 800px;
  margin-bottom: 50px;
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.8rem;
  }
}