/* Phone Translator Modern Design - Clean, Accessible, Responsive */

/* Main Container */
.phone-translator-container {
  --max-width: 720px;
  --space-unit: 8px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --min-touch-target: 44px;
}

.phone-translator-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 calc(var(--space-unit) * 2);
  padding-bottom: calc(var(--space-unit) * 16); /* Space for sticky footer */
  min-height: 100vh;
}

/* Call Summary Bar - Sticky Header */
.call-summary-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  margin: 0 calc(var(--space-unit) * -2);
  padding: calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 2);
  background: var(--bg-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background-color: rgba(var(--bg-primary-rgb), 0.8);
  border-bottom: 1px solid var(--border-primary);
  transition: box-shadow var(--transition-base);
}

.call-summary-bar.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.call-summary-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: calc(var(--space-unit) * 2);
}

.language-pair-chip {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--space-unit) * 1);
  padding: calc(var(--space-unit) * 0.75) calc(var(--space-unit) * 1.5);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  font-size: 0.875rem;
}

.language-badge {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--space-unit) * 0.5);
  font-weight: 600;
  color: var(--text-primary);
}

.language-badge .flag {
  font-size: 1.125rem;
}

.language-arrow {
  color: var(--text-tertiary);
  font-size: 1.125rem;
}

.quick-start-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: calc(var(--space-unit) * 1);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.quick-start-toggle input[type="checkbox"] {
  width: calc(var(--space-unit) * 2.5);
  height: calc(var(--space-unit) * 2.5);
  cursor: pointer;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--space-unit) * 0.5);
  padding: calc(var(--space-unit) * 0.5) calc(var(--space-unit) * 1.5);
  background: var(--bg-tertiary);
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.status-pill.good {
  background: rgba(16, 185, 129, 0.1);
  color: #10B981;
}

/* Stepper Navigation */
.step-navigation {
  margin: calc(var(--space-unit) * 4) 0 calc(var(--space-unit) * 3);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: calc(var(--space-unit) * 1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.step-item {
  padding: calc(var(--space-unit) * 2) calc(var(--space-unit) * 1.5);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition-base);
  min-height: var(--min-touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-item.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  font-weight: 600;
  box-shadow: 0 2px 4px var(--color-primary-alpha);
}

.step-item.completed {
  background: var(--bg-elevated);
  border-color: var(--color-success);
  color: var(--color-success);
}

/* Step Panels */
.step-panel {
  display: none;
  animation: fadeIn var(--transition-base);
}

.step-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-panel-header {
  margin-bottom: calc(var(--space-unit) * 3);
}

.step-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: calc(var(--space-unit) * 1);
}

.step-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Phone Input Section */
.phone-input-group {
  margin-bottom: calc(var(--space-unit) * 3);
}

.phone-input-wrapper {
  display: flex;
  gap: calc(var(--space-unit) * 1);
  align-items: stretch;
}

.country-selector {
  flex-shrink: 0;
  padding: 0 calc(var(--space-unit) * 2);
  background: var(--bg-secondary);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 100px;
}

.country-selector:hover {
  border-color: var(--color-primary-light);
}

.country-selector:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.phone-input-field {
  flex: 1;
  padding: calc(var(--space-unit) * 1.75) calc(var(--space-unit) * 2);
  background: var(--bg-primary);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.phone-input-field:hover {
  border-color: var(--color-primary-light);
}

.phone-input-field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.phone-input-field::placeholder {
  color: var(--text-tertiary);
  font-weight: 400;
}

.voice-input-button {
  flex-shrink: 0;
  width: calc(var(--space-unit) * 6);
  height: calc(var(--space-unit) * 6);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
}

.voice-input-button:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--bg-elevated);
}

.voice-input-button.listening {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--color-primary-alpha); }
  70% { box-shadow: 0 0 0 10px rgba(14, 165, 233, 0); }
  100% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0); }
}

.input-help-text {
  margin-top: calc(var(--space-unit) * 0.75);
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.input-error {
  margin-top: calc(var(--space-unit) * 0.75);
  font-size: 0.75rem;
  color: var(--color-error);
}

/* Language Pair Picker */
.language-pair-picker {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: calc(var(--space-unit) * 2);
  align-items: center;
  margin-bottom: calc(var(--space-unit) * 3);
}

.language-selector-card {
  padding: calc(var(--space-unit) * 3);
  background: var(--bg-secondary);
  border: 2px solid var(--border-primary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.language-selector-card:hover {
  border-color: var(--color-primary-light);
  background: var(--bg-elevated);
}

.language-selector-card.selected {
  border-color: var(--color-primary);
  background: var(--bg-elevated);
}

.language-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: calc(var(--space-unit) * 1);
}

.language-display {
  display: flex;
  align-items: center;
  gap: calc(var(--space-unit) * 1);
  cursor: pointer;
}

.language-flag {
  font-size: 2rem;
}

.language-info {
  flex: 1;
}

.language-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.language-native {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.language-swap-button {
  width: var(--min-touch-target);
  height: var(--min-touch-target);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
}

.language-swap-button:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: rotate(180deg);
}

/* Next/Previous Navigation */
.step-navigation-buttons {
  display: flex;
  justify-content: space-between;
  gap: calc(var(--space-unit) * 2);
  margin-top: calc(var(--space-unit) * 4);
}

.nav-button {
  display: flex;
  align-items: center;
  gap: calc(var(--space-unit) * 1);
  padding: calc(var(--space-unit) * 1.5) calc(var(--space-unit) * 3);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-primary);
  min-height: var(--min-touch-target);
}

.nav-button:hover {
  background: var(--bg-elevated);
  border-color: var(--color-primary);
}

.nav-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.nav-button.primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.nav-button.primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

/* Options Panel */
.options-grid {
  display: grid;
  gap: calc(var(--space-unit) * 2);
  margin-bottom: calc(var(--space-unit) * 3);
}

.option-card {
  padding: calc(var(--space-unit) * 2);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
}

.option-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: calc(var(--space-unit) * 1);
}

.option-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.option-description {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Summary Card */
.summary-card {
  padding: calc(var(--space-unit) * 3);
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  margin-bottom: calc(var(--space-unit) * 3);
}

.summary-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: calc(var(--space-unit) * 2);
}

.summary-details {
  display: grid;
  gap: calc(var(--space-unit) * 1.5);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-value {
  font-weight: 600;
  color: var(--text-primary);
}

/* Favorites Section */
.favorites-section {
  margin-top: calc(var(--space-unit) * 4);
  padding: calc(var(--space-unit) * 2);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.favorites-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.favorites-title {
  display: flex;
  align-items: center;
  gap: calc(var(--space-unit) * 1);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.favorites-toggle {
  width: calc(var(--space-unit) * 3);
  height: calc(var(--space-unit) * 3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.favorites-section.expanded .favorites-toggle {
  transform: rotate(180deg);
}

.favorites-content {
  display: none;
  margin-top: calc(var(--space-unit) * 2);
}

.favorites-section.expanded .favorites-content {
  display: block;
}

.favorites-empty {
  text-align: center;
  padding: calc(var(--space-unit) * 4) calc(var(--space-unit) * 2);
}

.favorites-empty-icon {
  font-size: 3rem;
  margin-bottom: calc(var(--space-unit) * 1);
  opacity: 0.3;
}

.favorites-empty-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: calc(var(--space-unit) * 0.5);
}

.favorites-empty-body {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: calc(var(--space-unit) * 2);
}

.favorites-empty-cta {
  padding: calc(var(--space-unit) * 1) calc(var(--space-unit) * 2);
  background: transparent;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.favorites-empty-cta:hover {
  background: var(--color-primary);
  color: white;
}

/* Sticky Footer */
.sticky-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background-color: rgba(var(--bg-primary-rgb), 0.9);
  border-top: 1px solid var(--border-primary);
  padding: calc(var(--space-unit) * 2);
  z-index: 100;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: calc(var(--space-unit) * 2);
}

.footer-status {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.start-call-button {
  display: flex;
  align-items: center;
  gap: calc(var(--space-unit) * 1);
  padding: calc(var(--space-unit) * 2) calc(var(--space-unit) * 3);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: var(--min-touch-target);
}

.start-call-button:hover:not(:disabled) {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-primary-alpha);
}

.start-call-button:disabled {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  cursor: not-allowed;
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .phone-translator-main {
    padding: 0 calc(var(--space-unit) * 1);
  }
  
  .call-summary-bar {
    margin: 0 calc(var(--space-unit) * -1);
    padding: calc(var(--space-unit) * 1) calc(var(--space-unit) * 1);
  }
  
  .call-summary-content {
    gap: calc(var(--space-unit) * 1);
  }
  
  .quick-start-toggle {
    width: 100%;
    margin-left: 0;
    margin-top: calc(var(--space-unit) * 1);
  }
  
  .step-list {
    grid-template-columns: 1fr;
  }
  
  .language-pair-picker {
    grid-template-columns: 1fr;
    gap: calc(var(--space-unit) * 1);
  }
  
  .language-swap-button {
    transform: rotate(90deg);
  }
  
  .phone-input-wrapper {
    flex-wrap: wrap;
  }
  
  .country-selector {
    width: 100%;
  }
  
  .step-navigation-buttons {
    flex-direction: column;
  }
  
  .nav-button {
    width: 100%;
    justify-content: center;
  }
}

/* RTL Support */
[dir="rtl"] .phone-translator-main {
  direction: rtl;
}

[dir="rtl"] .language-arrow {
  transform: rotate(180deg);
}

[dir="rtl"] .nav-button svg {
  transform: rotate(180deg);
}

/* Dark Mode Adjustments */
[data-theme="dark"] .call-summary-bar {
  background-color: rgba(var(--bg-primary-rgb), 0.9);
}

[data-theme="dark"] .sticky-footer {
  background-color: rgba(var(--bg-primary-rgb), 0.95);
}

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

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

/* High Contrast Mode */
@media (prefers-contrast: high) {
  .step-item {
    border-width: 2px;
  }
  
  .phone-input-field,
  .country-selector {
    border-width: 3px;
  }
  
  .start-call-button:disabled {
    opacity: 0.6;
  }
}