:root {
  --ls-primary: #3975c7;
  --ls-primary-dark: #2c5da0;
  --ls-primary-light: #4a86d8;
  --ls-success: #4caf50;
  --ls-error: #d32f2f;
  --ls-warning: #ff9800;
  --ls-bg: #ffffff;
  --ls-bg-light: #f9fbff;
  --ls-text: #2d3e4a;
  --ls-text-light: #6b7c91;
  --ls-border: #d5dbe7;
  --ls-border-focus: var(--ls-primary);
  --ls-radius: 0.75rem;
  --ls-radius-sm: 0.375rem;
  --ls-maxw: 760px;
  --ls-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
  --ls-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --ls-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --ls-bg: #1a1a1a;
    --ls-bg-light: #252525;
    --ls-text: #e0e0e0;
    --ls-text-light: #a0a0a0;
    --ls-border: #3a3a3a;
    --ls-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

/* Reset and base styles */
.ls-signup-wrapper,
.ls-signup-wrapper * {
  box-sizing: border-box;
}

.ls-signup-wrapper {
  width: 100%;
  max-width: var(--ls-maxw);
  background: var(--ls-bg-light);
  border-radius: var(--ls-radius);
  box-shadow: var(--ls-shadow);
  padding: 2rem;
  margin: 2rem auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ls-text);
  position: relative;
  transition: var(--ls-transition);
}

/* Focus-visible for better accessibility */
.ls-signup-wrapper *:focus-visible {
  outline: 2px solid var(--ls-primary);
  outline-offset: 2px;
}

/* Form layout */
.ls-signup-wrapper form {
  display: grid;
  gap: 1.5rem;
}

/* Labels */
.ls-signup-wrapper label {
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: block;
  color: var(--ls-text);
  font-size: 0.9375rem;
}

/* Input fields */
.ls-signup-wrapper input,
.ls-signup-wrapper textarea,
.ls-signup-wrapper select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--ls-border);
  border-radius: var(--ls-radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--ls-bg);
  color: var(--ls-text);
  transition: var(--ls-transition);
}

.ls-signup-wrapper input:hover,
.ls-signup-wrapper textarea:hover,
.ls-signup-wrapper select:hover {
  border-color: var(--ls-text-light);
}

.ls-signup-wrapper input:focus,
.ls-signup-wrapper textarea:focus,
.ls-signup-wrapper select:focus {
  outline: none;
  border-color: var(--ls-border-focus);
  box-shadow: 0 0 0 3px rgba(57, 117, 199, 0.1);
}

/* Textarea specific */
.ls-signup-wrapper textarea {
  min-height: 120px;
  max-height: 300px;
  resize: vertical;
  line-height: 1.5;
}

/* Hidden honeypot field */
.ls-signup-wrapper .hidden-honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  overflow: hidden !important;
}

/* Submit button */
.ls-signup-wrapper button {
  align-self: start;
  background: var(--ls-primary);
  color: #fff;
  border: none;
  padding: 0.875rem 2rem;
  border-radius: var(--ls-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--ls-transition);
  position: relative;
  overflow: hidden;
}

.ls-signup-wrapper button:hover:not(:disabled) {
  background: var(--ls-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--ls-shadow-sm);
}

.ls-signup-wrapper button:active:not(:disabled) {
  transform: translateY(0);
}

.ls-signup-wrapper button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Button ripple effect */
.ls-signup-wrapper button::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.ls-signup-wrapper button:active::after {
  width: 300px;
  height: 300px;
}

/* Field wrapper */
.ls-signup-wrapper .field-wrapper {
  position: relative;
  margin-bottom: 0;
}

/* Required indicator */
.ls-signup-wrapper .required {
  color: var(--ls-error);
  margin-left: 2px;
  font-weight: 400;
}

/* Responsive grid */
@media (min-width: 640px) {
  .ls-signup-wrapper {
    padding: 3rem;
  }
  
  .ls-signup-wrapper .form-fields {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  .ls-signup-wrapper .field-wrapper.full-width {
    grid-column: 1 / -1;
  }
}

/* Response messages */
.ls-su-response {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: var(--ls-radius-sm);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.5;
  position: relative;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ls-su-response.success {
  background-color: rgba(76, 175, 80, 0.1);
  color: var(--ls-success);
  border: 1px solid rgba(76, 175, 80, 0.2);
}

.ls-su-response.error {
  background-color: rgba(211, 47, 47, 0.1);
  color: var(--ls-error);
  border: 1px solid rgba(211, 47, 47, 0.2);
}

/* Loading state */
.ls-signup-wrapper form[data-state="submitting"] {
  pointer-events: none;
  opacity: 0.8;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .ls-signup-wrapper,
  .ls-signup-wrapper * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .ls-signup-wrapper {
    border: 2px solid var(--ls-text);
  }
  
  .ls-signup-wrapper input,
  .ls-signup-wrapper textarea,
  .ls-signup-wrapper select {
    border-width: 2px;
  }
}

/* Print styles */
@media print {
  .ls-signup-wrapper {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  .ls-signup-wrapper button {
    display: none;
  }
}

/* Custom scrollbar for textareas */
.ls-signup-wrapper textarea::-webkit-scrollbar {
  width: 8px;
}

.ls-signup-wrapper textarea::-webkit-scrollbar-track {
  background: var(--ls-bg-light);
  border-radius: 4px;
}

.ls-signup-wrapper textarea::-webkit-scrollbar-thumb {
  background: var(--ls-border);
  border-radius: 4px;
}

.ls-signup-wrapper textarea::-webkit-scrollbar-thumb:hover {
  background: var(--ls-text-light);
}

/* Placeholder styling */
.ls-signup-wrapper input::placeholder,
.ls-signup-wrapper textarea::placeholder {
  color: var(--ls-text-light);
  opacity: 0.7;
}

/* Autofill styling */
.ls-signup-wrapper input:-webkit-autofill,
.ls-signup-wrapper input:-webkit-autofill:hover,
.ls-signup-wrapper input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--ls-text);
  -webkit-box-shadow: 0 0 0px 1000px var(--ls-bg) inset;
  transition: background-color 5000s ease-in-out 0s;
}

/* Error states from JavaScript */
.ls-signup-wrapper .field-wrapper.error input,
.ls-signup-wrapper .field-wrapper.error textarea {
  border-color: var(--ls-error);
  background-color: rgba(211, 47, 47, 0.02);
}

.ls-signup-wrapper .field-error {
  color: var(--ls-error);
  font-size: 0.875rem;
  margin-top: 0.375rem;
  display: block;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}