body {
  font-family: "Roboto", sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
  color: #333;
}

.header {
  background-color: #1a1a1a;
  color: white;
  padding: 1rem;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.container {
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  overflow: hidden;
}

h1 {
  text-align: center;
  color: #fff;
  margin: 0;
}

.instructions {
  background-color: #fff;
  padding: 20px;
  border-radius: 5px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.instructions h5 {
  color: #555;
  font-weight: 500;
  margin-top: 0;
}

.instructions ol {
  padding-left: 20px;
  color: #666;
}

.instructions ol li {
  margin-bottom: 10px;
}

.method-tabs {
  display: flex;
  margin-bottom: 0;
  background-color: #f8f8f8;
  border-radius: 8px 8px 0 0;
  overflow: hidden;
  border: 1px solid #ddd;
  border-bottom: none;
  transition: all 0.3s ease;
}

.tab-button {
  flex: 1;
  padding: 15px 20px;
  background: #f8f8f8;
  border: none;
  border-bottom: 1px solid #ddd;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: #666;
  transition: all 0.3s ease;
  position: relative;
  text-align: center;
}

.tab-button:first-child {
  border-right: 1px solid #ddd;
}

.tab-button.active {
  color: #4285f4;
  background-color: #fff;
  border-bottom-color: transparent;
}

.tab-button.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #4285f4;
}

.tab-button:hover:not(.active) {
  background-color: #f0f0f0;
}

.method-content {
  padding: 25px;
  border: 1px solid #ddd;
  border-top: none;
  border-radius: 0 0 8px 8px;
  background-color: #fff;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.input-field {
  margin-bottom: 20px;
}

.input-field label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
  color: #333;
}

.input-field input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #ddd;
  border-radius: 6px;
  box-sizing: border-box;
  font-size: 16px;
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.input-field input:focus {
  border-color: #4285f4;
  outline: none;
  box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.btn {
  display: inline-block;
  width: 100%;
  padding: 12px;
  color: #fff;
  background-color: #4285f4;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  transition:
    background-color 0.3s ease,
    transform 0.2s ease;
}

.btn:hover {
  background-color: #3367d6;
  transform: scale(1.02);
}

.btn:disabled {
  background-color: #a4a4a4;
  cursor: not-allowed;
}

.drop-area {
  border: 2px dashed #ddd;
  border-radius: 8px;
  padding: 40px 30px;
  text-align: center;
  margin-bottom: 20px;
  transition: all 0.3s ease;
  background-color: #f9f9f9;
}

.drop-area.highlight {
  border-color: #4285f4;
  background-color: #e8f0fe;
}

.drop-area.has-file {
  border-color: #34a853;
  background-color: #e6f4ea;
}

.file-name {
  margin-top: 10px;
  font-weight: 500;
  word-break: break-all;
}

.toast {
  visibility: hidden;
  min-width: 300px;
  margin-left: -150px;
  background-color: #333;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 16px;
  position: fixed;
  z-index: 1;
  left: 50%;
  bottom: 30px;
  font-size: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition:
    opacity 0.5s ease,
    bottom 0.5s ease;
}

.toast.show {
  visibility: visible;
  opacity: 1;
  animation:
    fadein 0.5s,
    fadeout 0.5s 2.5s;
}

.waiting-symbol {
  text-align: center;
  font-size: 18px;
  color: #555;
  margin-top: 20px;
  font-style: italic;
}

.progress-container {
  margin-top: 20px;
  padding: 15px;
  background-color: #f8f8f8;
  border-radius: 8px;
  border: 1px solid #ddd;
}

.progress-bar-wrapper {
  width: 100%;
  height: 20px;
  background-color: #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-bar {
  height: 100%;
  background-color: #4285f4;
  width: 0%;
  border-radius: 10px;
  transition: width 0.3s ease;
}

.progress-message {
  text-align: center;
  font-size: 16px;
  color: #555;
}

.redirect-status {
  margin-top: 10px;
  text-align: center;
  font-size: 14px;
  color: #4285f4;
  font-weight: 500;
  padding: 8px;
  background-color: #e8f0fe;
  border-radius: 5px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 0.8;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.8;
  }
}

@keyframes fadein {
  from {
    bottom: 0;
    opacity: 0;
  }
  to {
    bottom: 30px;
    opacity: 1;
  }
}

@keyframes fadeout {
  from {
    bottom: 30px;
    opacity: 1;
  }
  to {
    bottom: 0;
    opacity: 0;
  }
}