.captcha-container {
  display: inline-flex;
  align-items: center;
  padding: 12px 16px;
  background: linear-gradient(135deg, #ffffff 0%, #f0f8ff 100%);
  border: 2px solid #4a90e2;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  user-select: none;
  box-shadow: 0 2px 8px rgba(74, 144, 226, 0.15);
}

.captcha-container:hover {
  border-color: #2563eb;
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.25);
  transform: translateY(-1px);
}

.captcha-container.disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.captcha-checkbox {
  width: 28px;
  height: 28px;
  border: 2px solid #4a90e2;
  border-radius: 4px;
  margin-right: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.captcha-container:hover .captcha-checkbox {
  border-color: #2563eb;
  background: #f0f8ff;
}

.captcha-checkbox.checked {
  background: linear-gradient(135deg, #4a90e2 0%, #2563eb 100%);
  border-color: #2563eb;
}

.captcha-checkbox svg {
  width: 18px;
  height: 18px;
  fill: white;
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.3s ease;
}

.captcha-checkbox.checked svg {
  opacity: 1;
  transform: scale(1);
}

.captcha-text {
  color: #1e40af;
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
}

.captcha-container.loading .captcha-checkbox {
  border-color: #4a90e2;
}

.captcha-container.loading .captcha-checkbox::after {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid #4a90e2;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.captcha-container.success {
  border-color: #10b981;
  background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
}

.captcha-container.success .captcha-checkbox {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: #10b981;
}

.captcha-container.success .captcha-text {
  color: #059669;
}

.captcha-container.error {
  border-color: #ef4444;
  background: linear-gradient(135deg, #ffffff 0%, #fef2f2 100%);
}

.captcha-container.error .captcha-checkbox {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  border-color: #ef4444;
}

.captcha-container.error .captcha-text {
  color: #dc2626;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.captcha-container.loading .captcha-checkbox svg {
  display: none;
}

.captcha-slider-verify {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.captcha-slider-track {
  width: 260px;
  height: 40px;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  user-select: none;
}

.captcha-slider-fill {
  height: 100%;
  background: linear-gradient(135deg, #4a90e2 0%, #2563eb 100%);
  border-radius: 20px;
  width: 0;
  transition: width 0.1s ease;
  opacity: 0.3;
}

.captcha-slider-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #475569;
  font-size: 14px;
  font-weight: 500;
  pointer-events: none;
  white-space: nowrap;
  z-index: 1;
}

.captcha-slider-button {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #4a90e2 0%, #2563eb 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  z-index: 2;
  box-shadow: 0 2px 6px rgba(74, 144, 226, 0.3);
}

.captcha-slider-button:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.5);
}

.captcha-slider-button:active {
  cursor: grabbing;
}

.captcha-slider-button svg {
  width: 16px;
  height: 16px;
  fill: white;
}

.captcha-slider-button.success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

.captcha-slider-text.success {
  color: #059669;
}

.captcha-container.captcha-dark .captcha-slider-track {
  background: linear-gradient(135deg, #334155 0%, #475569 100%);
}

.captcha-container.captcha-dark .captcha-slider-fill {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.captcha-container.captcha-dark .captcha-slider-text {
  color: #94a3b8;
}

.captcha-container.captcha-dark .captcha-slider-text.success {
  color: #6ee7b7;
}

.captcha-container.captcha-dark {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-color: #3b82f6;
}

.captcha-container.captcha-dark:hover {
  border-color: #60a5fa;
}

.captcha-container.captcha-dark .captcha-checkbox {
  background: #334155;
  border-color: #3b82f6;
}

.captcha-container.captcha-dark:hover .captcha-checkbox {
  background: #475569;
  border-color: #60a5fa;
}

.captcha-container.captcha-dark .captcha-text {
  color: #e0e7ff;
}

.captcha-container.captcha-dark.success {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-color: #10b981;
}

.captcha-container.captcha-dark.success .captcha-text {
  color: #6ee7b7;
}

.captcha-container.captcha-dark.error {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  border-color: #ef4444;
}

.captcha-container.captcha-dark.error .captcha-text {
  color: #fca5a5;
}

.captcha-container.captcha-dark.loading .captcha-checkbox::after {
  border-color: #3b82f6;
  border-top-color: transparent;
}