/* ============================================================================
   Base UI System Styles
   Consolidated app shell, components, and interactions for the MVP
   ============================================================================ */

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  margin: 0;
  background-color: var(--background-color);
  color: var(--text-color);
}

a {
  color: inherit;
  text-decoration: none;
}

/* Layout primitives */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack-tight { gap: var(--space-2); }
.stack-loose { gap: var(--space-6); }

.row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.row-tight { gap: var(--space-2); }
.row-loose { gap: var(--space-6); }

.row > * {
  flex: 1;
}

.row .flex-none { flex: none; }
.row .flex-2 { flex: 2; }
.row .flex-3 { flex: 3; }

/* Button system */
.btn,
button,
input[type="button"],
input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: #fff;
  background: var(--primary-color);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--elev-1);
  transition: var(--transition-fast);
  cursor: pointer;
}

.btn:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover {
  background: var(--primary-hover);
  box-shadow: var(--elev-2);
}

.btn:active,
button:active,
input[type="button"]:active,
input[type="submit"]:active {
  background: var(--primary-active);
  box-shadow: var(--elev-0);
  transform: var(--active-press);
}

.btn:focus-visible,
button:focus-visible {
  box-shadow: var(--focus-ring);
}

.btn:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

/* Loading states for buttons */
.btn.loading,
button.loading {
  position: relative;
  color: transparent !important;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.loading::after,
button.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: button-spin 0.8s linear infinite;
  color: #ffffff;
}

@keyframes button-spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Enhanced button states */
.btn:disabled,
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn.success,
button.success {
  background-color: #10b981 !important;
  border-color: #10b981 !important;
  color: white !important;
  transition: all 0.2s ease;
}

.btn.error,
button.error {
  background-color: #ef4444 !important;
  border-color: #ef4444 !important;
  color: white !important;
  transition: all 0.2s ease;
}

/* Enhanced navigation */
.nav-item {
  transition: all 0.2s ease;
  cursor: pointer;
  border-radius: 8px;
  position: relative;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  text-decoration: none;
  color: inherit;
}

.nav-item:hover {
  background-color: rgba(59, 130, 246, 0.1);
  transform: translateX(2px);
  text-decoration: none;
}

.nav-item.active {
  background-color: rgba(59, 130, 246, 0.15);
  color: #1d4ed8;
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background-color: #3b82f6;
  border-radius: 0 2px 2px 0;
}

.nav-icon {
  margin-right: 12px;
  font-size: 18px;
  width: 20px;
  text-align: center;
}

.nav-text {
  flex: 1;
}

.nav-badge {
  background: #ef4444;
  color: white;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 600;
  margin-left: 8px;
}

/* Sidebar enhancements */
.app-sidebar {
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 1000;
  position: relative;
}

.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
  backdrop-filter: blur(4px);
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile sidebar states */
@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    z-index: 1000;
  }
  
  .app-sidebar.mobile-open {
    transform: translateX(0);
  }
  
  .app-main {
    margin-left: 0 !important;
  }
}

/* Result list styling */
#resultList {
  list-style: none;
  margin: 0;
  padding: 0;
}

.result-item {
  padding: 16px;
  border: 1px solid var(--border-color, #e5e5e5);
  border-radius: var(--radius-md, 8px);
  background: var(--background-color, #fff);
  box-shadow: var(--elev-0, none);
}

.result-item .output-display {
  white-space: pre-wrap;
  font-family: var(--font-mono, 'SF Mono', Monaco, monospace);
  border-radius: var(--radius-sm, 6px);
  background: var(--gray-50, #f9fafb);
  padding: 12px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.875rem;
}

/* Form enhancements */
.form-message {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid;
  animation: slideInDown 0.3s ease;
}

/* Form controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.form-helper {
  font-size: var(--text-xs);
  color: var(--muted-text-color);
}

.input,
.textarea,
textarea,
input[type="text"] {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: #fff;
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus,
.textarea:focus,
textarea:focus,
input[type="text"]:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  outline: none;
}

.textarea,
textarea {
  resize: vertical;
  min-height: 120px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.range-slider {
  width: 100%;
}

.notification {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  border: 1px solid var(--border-color);
  background: var(--background-secondary);
  color: var(--text-secondary);
}

.notification.success { color: var(--success-600); border-color: var(--success-100); background: var(--success-50); }
.notification.info { color: var(--brand-700); border-color: var(--brand-100); background: var(--brand-50); }
.notification.error { color: var(--error-600); border-color: var(--error-100); background: var(--error-50); }

/* Cards */
.card {
  background: var(--card-background);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.card-header {
  margin: calc(-1 * var(--space-6)) calc(-1 * var(--space-6)) var(--space-4) calc(-1 * var(--space-6));
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-color);
  background: var(--background-secondary);
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin: 0;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-title::before {
  content: '';
  width: 4px;
  height: var(--text-xl);
  background: var(--primary-color);
  border-radius: var(--radius-sm);
  opacity: 0.6;
}

.card-subtitle {
  color: var(--muted-text-color);
  font-size: var(--text-sm);
  margin: var(--space-1) 0 0 0;
}

/* App shell layout */
.app-layout {
  display: flex;
  min-height: 100vh;
  background: var(--gray-50);
}

.app-sidebar {
  width: 280px;
  min-width: 280px;
  background: white;
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 0 1px var(--gray-200);
  z-index: 10;
  transition: transform 0.3s ease;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--gray-100);
  background: var(--gray-25);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  color: var(--gray-900);
}

.brand-icon {
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-text {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.sidebar-toggle {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: 6px;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  transition: all 0.2s ease;
}

.sidebar-toggle:hover {
  background: var(--gray-100);
  color: var(--gray-700);
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) 0;
  overflow-y: auto;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--gray-100);
}

.usage-overview {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.usage-label {
  font-size: var(--text-xs);
  color: var(--muted-text-color);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.usage-amount {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-color);
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6);
  border-bottom: 1px solid var(--gray-200);
  background: white;
  position: sticky;
  top: 0;
  z-index: 5;
}

.page-title {
  font-size: var(--text-3xl);
  margin: 0 0 var(--space-1) 0;
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: var(--text-sm);
  color: var(--muted-text-color);
  margin: 0;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.page-content {
  flex: 1;
  padding: var(--space-6);
  overflow: auto;
}

  flex-wrap: wrap;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 160px;
}

.metric-label {
  font-size: var(--text-xs);
  color: var(--muted-text-color);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric-value {
  font-size: var(--text-2xl);
  font-weight: 600;
}

@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    transform: translateX(-100%);
    z-index: 50;
  }

  .app-sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: flex;
  }

  .app-main {
    margin-left: 0;
  }
}

.form-message.success {
  background-color: #d1fae5;
  color: #065f46;
  border-color: #10b981;
}

.form-message.error {
  background-color: #fee2e2;
  color: #991b1b;
  border-color: #ef4444;
}

.form-message.warning {
  background-color: #fef3c7;
  color: #92400e;
  border-color: #f59e0b;
}

.form-message.info {
  background-color: #dbeafe;
  color: #1e40af;
  border-color: #3b82f6;
}

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

.field-error {
  color: #ef4444;
  font-size: 12px;
  margin-top: 4px;
  display: block;
  font-weight: 500;
}

.input.error,
.textarea.error,
.select.error {
  border-color: #ef4444;
  background-color: #fef2f2;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Section transitions */
.app-section {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  display: none;
}

.app-section.active {
  opacity: 1;
  transform: translateY(0);
  display: block;
}

/* Action feedback animations */
.action-feedback {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  animation: fadeInUp 0.3s ease;
}

.action-feedback.success {
  background-color: #d1fae5;
  color: #065f46;
}

.action-feedback.error {
  background-color: #fee2e2;
  color: #991b1b;
}

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

/* UI Messages */
.ui-message {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  padding: 12px 16px;
  border-radius: 8px;
  color: white;
  font-weight: 500;
  max-width: 400px;
  word-wrap: break-word;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.ui-message-success {
  background-color: #10b981;
}

.ui-message-error {
  background-color: #ef4444;
}

.ui-message-warning {
  background-color: #f59e0b;
}

.ui-message-info {
  background-color: #3b82f6;
}

/* Focus management */
.focus-trap {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Improved accessibility */
[aria-hidden="true"] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #000;
  color: #fff;
  padding: 8px;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  z-index: 100000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

/* Enhanced mobile touch targets */
@media (max-width: 768px) {
  .btn,
  button {
    min-height: 44px;
    min-width: 44px;
  }
  
  .nav-item {
    padding: 16px;
    min-height: 48px;
  }
  
  .sidebar-toggle {
    min-height: 44px;
    min-width: 44px;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn,
  button {
    border-width: 2px;
  }
  
  .nav-item.active {
    outline: 2px solid currentColor;
    outline-offset: -2px;
  }
  
  .form-message {
    border-width: 2px;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .btn,
  .nav-item,
  .app-sidebar,
  .sidebar-overlay,
  .app-section,
  .form-message,
  .ui-message {
    transition: none;
    animation: none;
  }
  
  .btn.loading::after,
  button.loading::after {
    animation: none;
  }
}

/* Enhanced button hover states */
.btn:not(:disabled):not(.loading):hover,
button:not(:disabled):not(.loading):hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn:not(:disabled):not(.loading):active,
button:not(:disabled):not(.loading):active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Sidebar mobile improvements */
.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.sidebar-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.sidebar-close:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

/* Loading overlay improvements */
#loadingOverlay {
  backdrop-filter: blur(4px);
  background: rgba(255, 255, 255, 0.95);
}

#loadingOverlay .loading-content {
  background: white;
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  max-width: 400px;
  margin: 0 auto;
}

/* Toast notification stack */
.ui-message:nth-child(n+2) {
  top: calc(20px + (60px * var(--toast-index, 0)));
}

/* Interactive element improvements */
[data-action] {
  cursor: pointer;
  user-select: none;
}

[data-action]:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* Form styling improvements */
form[data-action] {
  cursor: default;
}

/* Navigation section styling */
.nav-section {
  margin-bottom: 24px;
}

.nav-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(0, 0, 0, 0.6);
  margin-bottom: 8px;
  padding: 0 16px;
}

/* Dashboard layout */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  align-items: stretch;
}

.dashboard-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.usage-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
}

.metric {
  padding: var(--space-4);
  background: var(--surface-subtle);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.metric-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.metric-value {
  font-size: var(--text-2xl);
  font-weight: 600;
}

.card-footnote {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin: 0;
}

.recent-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.recent-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--surface-subtle);
}

.recent-title {
  font-weight: 500;
  margin-right: var(--space-3);
}

.recent-meta {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.brand-voice-details {
  padding: var(--space-3);
  background: var(--surface-subtle);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.brand-voice-details p {
  margin: 0;
}

.brand-voice-details .descriptor-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.descriptor-chip {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.12);
  color: #1d4ed8;
  font-size: var(--text-sm);
  font-weight: 500;
}

.brand-voice-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.descriptor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-3);
}

.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.form-status {
  font-size: var(--text-sm);
}

.form-status.success {
  color: #047857;
}

.form-status.error {
  color: #b91c1c;
}

.text-muted {
  color: var(--text-muted);
}

/* Generate workspace layout */
.generate-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: flex-start;
}

@media (max-width: 1280px) {
  .generate-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 1024px) {
  .generate-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.compose-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.compose-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.step-guide {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--surface-subtle);
  border-radius: var(--radius-md);
  margin: 0;
  list-style: none;
}

.step-guide__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-muted { color: var(--text-muted); }
.text-strong { color: var(--text-strong); font-weight: 600; }
.text-success { color: var(--success-600); }
.text-error { color: var(--error-600); }

.step-guide__item.is-complete {
  color: var(--primary-color);
  font-weight: 600;
}
.brand-voice-banner {
  background: var(--surface-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-muted);
}


.step-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary-color);
  font-weight: 600;
}

.compose-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.link-button {
  border: none;
  background: none;
  color: var(--primary-color);
  font-weight: 500;
  cursor: pointer;
  padding: 0;
}

.link-button:hover,
.link-button:focus-visible {
  text-decoration: underline;
}

.intent-fieldset,
.tone-fieldset {
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.intent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--space-3);
}

.intent-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  background: #fff;
}

.intent-tile:hover,
.intent-tile:focus-within {
  border-color: var(--primary-color);
  box-shadow: var(--focus-ring);
}

.intent-tile input {
  appearance: none;
  position: absolute;
  inset: 0;
  opacity: 0;
}

.intent-title {
  font-weight: 600;
  color: var(--text-strong);
}

.intent-desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.intent-tile input:checked + .intent-title,
.intent-tile input:checked ~ .intent-desc {
  color: var(--primary-color);
}

.tone-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.tone-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: 999px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.15s ease;
  background: #fff;
}

.tone-pill input {
  appearance: none;
  position: absolute;
  inset: 0;
  opacity: 0;
}

.tone-pill input:checked ~ span {
  color: var(--primary-color);
  font-weight: 600;
}

.tone-pill:hover,
.tone-pill:focus-within,
.tone-pill input:checked ~ span {
  border-color: var(--primary-color);
}

.advanced-options {
  border-radius: var(--radius-md);
  background: var(--surface-subtle);
  padding: var(--space-3) var(--space-4);
}

.advanced-options > summary {
  font-weight: 600;
  cursor: pointer;
  margin-bottom: var(--space-3);
  list-style: none;
}

.advanced-options > summary::-webkit-details-marker {
  display: none;
}

.advanced-options[open] {
  box-shadow: var(--elev-1);
}

.generate-actions,
.billing-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.progress-status {
  font-size: var(--text-sm);
  color: var(--text-muted);
  min-height: 24px;
}

.results-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.results-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.result-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.result-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.result-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.result-summary {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.result-summary span {
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary-color);
  padding: 2px 8px;
  border-radius: 999px;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
}

  font-size: var(--text-xs);
  color: var(--text-muted);
}

  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

  display: inline-flex;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary-color);
  font-size: var(--text-xs);
  font-weight: 600;
}

  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-color);
}

  border-bottom: none;
}

  font-weight: 600;
  color: var(--text-strong);
}

  font-size: var(--text-xs);
  color: var(--text-muted);
}

.btn.tertiary {
  background: transparent;
  color: var(--primary-color);
  box-shadow: none;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.btn.tertiary:hover,
.btn.tertiary:focus-visible {
  background: rgba(59, 130, 246, 0.08);
  box-shadow: none;
}

.btn.secondary {
  background: #ffffff;
  color: var(--primary-color);
  box-shadow: none;
  border: 1px solid rgba(59, 130, 246, 0.4);
}

.btn.secondary:hover,
.btn.secondary:focus-visible {
  background: rgba(59, 130, 246, 0.1);
  box-shadow: none;
}

/* Responsive improvements */
@media (min-width: 769px) {
  .sidebar-overlay {
    display: none !important;
  }
}

/* Print styles */
@media print {
  .app-sidebar,
  .sidebar-overlay,
  .ui-message,
  .skip-link {
    display: none !important;
  }
  
  .app-main {
    margin-left: 0 !important;
  }
}

.legacy-banner {
  margin-top: var(--space-6);
  background: var(--surface-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--text-sm);
  color: var(--text-muted);
}
.legacy-banner a {
  color: var(--primary-color);
  font-weight: 600;
}

.legacy-page {
  background: var(--background-color);
  font-family: var(--font-sans);
  margin: 0;
}
.legacy-container {
  max-width: 640px;
  margin: 80px auto;
  padding: var(--space-6);
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.legacy-container a {
  color: var(--primary-color);
  font-weight: 600;
}

/* Auth error/debug banners */
.auth-error-banner {
  margin: 20px 0;
  padding: 16px;
  border: 1px solid #ef4444;
  background: #fef2f2;
  border-radius: 8px;
  color: #991b1b;
}
.auth-error-banner__title {
  font-weight: 600;
  margin-bottom: 8px;
}
.auth-error-banner__message {
  margin-bottom: 12px;
}
.auth-error-banner__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.auth-error-banner__button {
  padding: 8px 16px;
  background: #dc2626;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}
.auth-error-banner__link {
  padding: 8px 16px;
  background: #2563eb;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-size: 14px;
  display: inline-block;
}

.auth-debug-banner {
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  color: #1e3a8a;
  margin: 12px 12px 0;
  border-radius: 8px;
  padding: 12px 16px;
}
.auth-debug-banner__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.auth-debug-banner__close {
  background: none;
  border: none;
  color: #1e3a8a;
  cursor: pointer;
}
.auth-debug-banner__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}
.auth-debug-banner__row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.auth-debug-banner__label {
  min-width: 160px;
  color: #374151;
}
.auth-debug-banner__value {
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
}

.is-hidden { display: none !important; }

/* Quick tools and optimized layout */
.generate-layout {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.quick-tools {
  width: 280px;
  flex-shrink: 0;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--elev-1);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  position: sticky;
  top: var(--space-6);
  max-height: calc(100vh - var(--space-8));
  overflow-y: auto;
}

.quick-tools__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.quick-tools__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin: 0;
}

.quick-tools__collapse {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 1px solid var(--gray-200);
  background: #f8fafc;
  cursor: pointer;
  position: relative;
}

.quick-tools__collapse::before,
.quick-tools__collapse::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  background: var(--gray-500);
  transform: translate(-50%, -50%);
  transition: transform var(--transition-fast);
}

.quick-tools.collapsed {
  width: 64px;
  min-width: 64px;
  padding: var(--space-3);
}

.quick-tools.collapsed .quick-tools__section,
.quick-tools.collapsed .quick-tools__title {
  display: none;
}

.quick-tools__section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.quick-tools__section-title {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--gray-600);
}

.quick-tools__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-3);
}

.quick-tools__pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.quick-tools__control {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.quick-tools__control-label {
  font-weight: 500;
  color: var(--gray-700);
}

.quick-tools__control-value {
  align-self: flex-end;
  font-size: var(--text-xs);
  color: var(--gray-500);
}

.quick-tools__subsection {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.pill {
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  background: #f8fafc;
  color: var(--gray-700);
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  transition: var(--transition-fast);
}

.pill--small {
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-3);
}

.pill:hover,
.pill.is-selected {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.4);
  color: #1d4ed8;
}

.pill.is-disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.generate-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

@media (max-width: 1080px) {
  .generate-layout {
    flex-direction: column;
  }

  .quick-tools,
  .quick-tools.collapsed {
    position: static;
    width: 100%;
    min-width: 0;
    max-height: none;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .quick-tools__header,
  .quick-tools__section {
    flex: 1 1 220px;
  }

  .quick-tools__collapse {
    display: none;
  }
}


.quick-tool-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: #f8fafc;
  padding: var(--space-3);
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.quick-tool-card__title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--gray-800);
}

.quick-tool-card__body {
  font-size: var(--text-xs);
  color: var(--gray-600);
}

.quick-tool-card:hover,
.quick-tool-card:focus-visible {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.4);
  color: #1d4ed8;
}

.quick-tools.is-disabled {
  opacity: 0.6;
}

.quick-tools.is-disabled button {
  cursor: not-allowed;
}

.quick-tools__collapse::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.quick-tools.collapsed .quick-tools__collapse::after {
  transform: translate(-50%, -50%);
}