:root {
  --primary-color: #3498db;
  --primary-hover: #2980b9;
  --secondary-color: #e67e22;
  --secondary-hover: #d35400;
  --success-bg: #e8f5e9;
  --success-border: #4caf50;
  --success-text: #2e7d32;
  --error-bg: #ffebee;
  --error-border: #f44336;
  --error-text: #c62828;
  --warning-bg: #fff3e0;
  --warning-border: #ff9800;
  --warning-text: #e65100;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background-color: #f4f7f6;
  margin: 0;
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  color: #333;
}

.container {
  background-color: #fff;
  padding: 25px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 600px;
  text-align: center;
}

h1 {
  color: #2c3e50;
  margin-bottom: 20px;
  font-size: 1.8em;
  line-height: 1.3;
}

.controls button,
.upload-btn,
.capture-controls button,
.result-area button {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 12px 20px;
  margin: 5px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.controls button:hover,
.upload-btn:hover,
.capture-controls button:hover,
.result-area button:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

#retakeBtn,
#tryAgainBtn {
  background-color: var(--secondary-color);
}

#retakeBtn:hover,
#tryAgainBtn:hover {
  background-color: var(--secondary-hover);
}

#enhancePhotoBtn {
  background-color: var(--tertiary-color, #9b59b6);
}

#enhancePhotoBtn:hover {
  background-color: var(--tertiary-hover, #8e44ad);
}

.upload-btn {
  display: inline-block;
}

.media-area {
  margin: 20px 0;
  border: 2px dashed #ccc;
  border-radius: 12px;
  min-height: 200px;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #fafafa;
  overflow: hidden;
}

#webcamVideo,
#photoPreview {
  max-width: 100%;
  max-height: 400px;
  border-radius: 8px;
  object-fit: contain;
}

.result-area {
  margin-top: 20px;
  padding: 15px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.result-area.approved {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
}

.result-area.approved #statusMessage {
  color: var(--success-text);
  font-weight: bold;
}

.result-area.reproved {
  background-color: var(--error-bg);
  border: 1px solid var(--error-border);
}

.result-area.reproved #statusMessage {
  color: var(--error-text);
  font-weight: bold;
}

.result-area.error {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
}

.result-area.error #statusMessage {
  color: var(--warning-text);
  font-weight: bold;
}

#reasonList {
  list-style: none;
  padding: 0;
  text-align: left;
  margin-top: 10px;
}

#reasonList li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  line-height: 1.4;
}

#reasonList li:last-child {
  border-bottom: none;
}

#loadingIndicator {
  margin-top: 20px;
}

.spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border-left-color: var(--primary-color);
  margin: 10px auto;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Responsividade */
@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .container {
    padding: 15px;
    border-radius: 8px;
  }

  h1 {
    font-size: 1.5em;
  }

  .controls button,
  .upload-btn,
  .capture-controls button,
  .result-area button,
  #enhancePhotoBtn {
    padding: 10px 15px;
    font-size: 14px;
    width: calc(50% - 10px);
    margin: 5px;
  }

  .media-area {
    min-height: 150px;
  }

  #webcamVideo,
  #photoPreview {
    max-height: 300px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 10px;
  }

  h1 {
    font-size: 1.2em;
  }

  .controls button,
  .upload-btn,
  .capture-controls button,
  .result-area button,
  #enhancePhotoBtn {
    width: 100%;
    margin: 5px 0;
  }

  .media-area {
    min-height: 120px;
  }

  #webcamVideo,
  #photoPreview {
    max-height: 250px;
  }
}