/* ===== Component Styles ===== */

/* ===== Tabs (segmented control) ===== */
.tabs-nav {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  gap: 4px;
  padding: 5px;
  margin-bottom: var(--space-xl);
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
}

.tabs-nav::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  white-space: nowrap;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.tab-btn:hover {
  color: var(--color-text-primary);
  background: var(--color-surface-hover);
}

.tab-btn[aria-selected="true"] {
  color: #FFFFFF;
  font-weight: 600;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-glow);
}

.tab-btn .tab-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  /* Neutral: desaturated and dimmed */
  filter: grayscale(100%) opacity(0.5);
  transition: filter var(--transition-fast);
}

/* Restore full brand color on hover or active */
.tab-btn:hover .tab-icon,
.tab-btn[aria-selected="true"] .tab-icon {
  filter: grayscale(0%) opacity(1);
}

.tab-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Tab panels */
.tab-panel {
  display: none;
  animation: fade-slide-in 300ms ease;
}

.tab-panel[aria-hidden="false"] {
  display: block;
}

/* ===== Form Groups ===== */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

/* ===== Custom Slider ===== */
.slider-container {
  position: relative;
  padding-top: var(--space-xl);
}

.slider-value-label {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
}

.custom-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  outline: none;
  cursor: pointer;
  position: relative;
}

.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
  z-index: 2;
}

.custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 2px 12px rgba(108, 92, 231, 0.6);
}

.custom-slider::-webkit-slider-thumb:active {
  transform: scale(1.1);
}

.custom-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.custom-slider::-moz-range-track {
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
}

.slider-range-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xs);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

/* ===== Select / Dropdown ===== */
.custom-select {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  padding-right: var(--space-2xl);
  font-size: 0.9rem;
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}

.custom-select:hover {
  border-color: var(--color-primary);
}

.custom-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Small select for header */
.select-sm {
  padding: 6px 32px 6px 10px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
  min-width: 80px;
}

/* ===== Custom Input ===== */
.custom-input {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.custom-input::placeholder {
  color: var(--color-text-muted);
  font-weight: 400;
}

.custom-input:hover {
  border-color: var(--color-border-strong);
}

.custom-input:focus {
  border-color: var(--color-primary);
  background-color: var(--color-surface);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* Numeric inputs: premium "fintech" treatment */
.custom-input.mono {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  font-variant-numeric: tabular-nums;
  color: var(--color-text-primary);
}

/* Hide native number spinners for a cleaner look */
.custom-input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

.custom-input[type="number"]::-webkit-outer-spin-button,
.custom-input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* ===== Toggle Switch ===== */
.toggle-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.toggle-switch {
  position: relative;
  width: 48px;
  height: 26px;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--color-border);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.toggle-switch input:checked + .toggle-track {
  background: var(--color-primary);
}

.toggle-track::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: var(--color-surface);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.toggle-switch input:checked + .toggle-track::after {
  transform: translateX(22px);
}

.toggle-label-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* ===== Radio Group ===== */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.radio-option {
  position: relative;
}

.radio-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-option label {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.radio-option input:checked + label {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  font-weight: 600;
}

.radio-option label:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-hover);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(108, 92, 231, 0.28);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-sm {
  padding: 6px var(--space-md);
  font-size: 0.8rem;
}

.btn-icon {
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.btn-icon:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ===== Results Section ===== */
.result-total-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: var(--space-sm);
}

.result-total-value {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  transition: filter var(--transition-normal);
}

.result-total-value.glow {
  filter: drop-shadow(0 4px 18px rgba(108, 92, 231, 0.45));
}

.result-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-lg) 0;
}

/* Breakdown list */
.breakdown-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

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

.breakdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
}

.breakdown-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.breakdown-color {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.breakdown-value {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Breakdown bar chart */
.breakdown-bar-container {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

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

.breakdown-bar-label {
  min-width: 80px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-align: right;
}

.breakdown-bar-track {
  flex: 1;
  height: 24px;
  background: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.breakdown-bar-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  transition: width 600ms cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 2px;
}

.breakdown-bar-amount {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  min-width: 70px;
  color: var(--color-text-primary);
}

/* Share section */
.share-section {
  margin-top: var(--space-xl);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ===== Tooltip ===== */
.tooltip-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  cursor: help;
  position: relative;
  flex-shrink: 0;
}

.tooltip-content {
  position: absolute;
  z-index: 50;
  max-width: 280px;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-secondary);
  line-height: 1.5;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  white-space: normal;
}

.tooltip-content.tooltip-above {
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
}

.tooltip-content.tooltip-below {
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
}

.tooltip-content.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.tooltip-content::before {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transform: rotate(45deg);
}

.tooltip-content.tooltip-above::before {
  bottom: -5px;
  left: 50%;
  margin-left: -4px;
  border-top: none;
  border-left: none;
}

.tooltip-content.tooltip-below::before {
  top: -5px;
  left: 50%;
  margin-left: -4px;
  border-bottom: none;
  border-right: none;
}

/* ===== Platform-specific input sections ===== */
.platform-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.platform-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  flex-shrink: 0;
}

.platform-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.platform-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Disclaimer */
.results-disclaimer {
  margin-top: var(--space-lg);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ===== All Platforms mini-sections ===== */
.all-platform-section {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  transition: border-color var(--transition-fast);
}

.all-platform-section:hover {
  border-color: var(--color-primary);
}

.all-platform-section .platform-header {
  margin-bottom: var(--space-sm);
}

/* ===== Share URL display ===== */
.share-url-display {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  padding: var(--space-sm);
  background: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  word-break: break-all;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

.share-url-display.visible {
  display: flex;
}

/* ===== PRO System Styles ===== */

.badge-free {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  font-weight: 700;
}

.badge-pro {
  display: inline-block;
  background: linear-gradient(135deg, #FFD700, #F39C12);
  color: #000;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 4px rgba(243, 156, 18, 0.3);
}

.text-gradient-pro {
  background: linear-gradient(135deg, #FFD700, #F39C12);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* PRO Features Grid */
.pro-features-section {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  background: linear-gradient(180deg, var(--color-surface-2), var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.pro-features-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  letter-spacing: var(--tracking-tight);
}

.pro-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--space-sm);
}

.pro-feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.pro-feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.pro-feature-icon {
  font-size: 1.6rem;
  opacity: 0.9;
  transition: transform var(--transition-fast);
}

.pro-feature-card:hover .pro-feature-icon {
  transform: scale(1.15);
}

.pro-feature-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  line-height: 1.25;
}

.pro-feature-card:hover .pro-feature-text {
  color: var(--color-text-primary);
}

/* PRO Modal */
.pro-modal {
  padding: 0;
  border: none;
  background: transparent;
  margin: auto;
  max-width: 900px;
  width: 90%;
}

.pro-modal::backdrop {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.pro-modal-container {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.pro-modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: var(--space-xs);
  border-radius: 50%;
  transition: all var(--transition-fast);
  display: flex;
}

.pro-modal-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

.pro-modal-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.pro-modal-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.pro-modal-subtitle {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

.pro-plans-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.pro-plan-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  position: relative;
}

.pro-plan-card.highlighted {
  border: 2px solid #F39C12;
  box-shadow: 0 8px 30px rgba(243, 156, 18, 0.15);
  background: var(--color-surface);
}

.plan-badge-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #FFD700, #F39C12);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  margin-bottom: var(--space-lg);
}

.plan-price-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.price-radio {
  display: flex;
  align-items: center;
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.price-radio:hover {
  border-color: #F39C12;
}

.price-radio input[type="radio"] {
  margin-right: var(--space-md);
  accent-color: #F39C12;
  width: 18px;
  height: 18px;
}

.radio-content {
  display: flex;
  flex-direction: column;
}

.radio-content .price {
  font-weight: 700;
  font-size: 1.1rem;
}

.radio-content .period {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.radio-content .desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.plan-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-xl) 0;
  flex: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.plan-features li svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.plan-features li.disabled {
  opacity: 0.5;
  text-decoration: line-through;
}

.plan-current-badge {
  text-align: center;
  padding: var(--space-sm);
  background: var(--color-surface-hover);
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.btn-checkout {
  width: 100%;
  background: linear-gradient(135deg, #F39C12, #D35400);
  border: none;
  padding: var(--space-md);
  font-size: 1rem;
  text-decoration: none;
}

.btn-checkout:hover {
  background: linear-gradient(135deg, #FFB02E, #E67E22);
  box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
}

/* ===== Premium Auth Modal Styles ===== */
.premium-modal {
  max-width: 420px;
  padding: var(--space-xl);
  border-radius: var(--radius-xl);
  background: rgba(var(--color-surface-rgb, 30, 41, 59), 0.85); /* Fallback */
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-border);
}

.premium-upgrade-modal {
  padding: 0;
  border-radius: var(--radius-xl);
  background: rgba(var(--color-surface-rgb, 30, 41, 59), 0.85); /* Fallback */
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-border);
  width: 90%;
  max-width: max-content;
  max-height: 90vh;
  overflow-y: auto;
}

/* Add RGB variable fallback to surface */
:root {
  --color-surface-rgb: 255, 255, 255;
}
[data-theme="dark"] {
  --color-surface-rgb: 30, 41, 59;
}

[data-theme="light"] .premium-modal,
[data-theme="light"] .premium-upgrade-modal { background: rgba(255, 255, 255, 0.85); }

[data-theme="dark"] .premium-modal,
[data-theme="dark"] .premium-upgrade-modal { background: rgba(30, 41, 59, 0.85); }

/* Dialog backdrop blur */
.pro-modal::backdrop {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background: rgba(0, 0, 0, 0.4);
}

.modal-header-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  box-shadow: 0 4px 12px rgba(108, 92, 231, 0.2);
}

.premium-modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
  letter-spacing: -0.5px;
}

.premium-modal-subtitle {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 8px;
  margin-bottom: 24px;
}

.premium-tabs {
  display: flex;
  gap: 8px;
  background: var(--color-surface-hover);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
}

.premium-tabs .auth-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-weight: 600;
  padding: 10px 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.premium-tabs .auth-tab.active {
  background: var(--color-surface);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}

.premium-input-group {
  margin-bottom: var(--space-md);
  text-align: left;
}

.premium-input-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.label-row label {
  margin-bottom: 0;
}

.forgot-link {
  color: var(--color-primary);
  font-size: 0.75rem;
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.forgot-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--color-text-muted);
  pointer-events: none;
  transition: color var(--transition-fast);
}

.form-input.has-icon {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
  font-size: 0.95rem;
}

.form-input.has-icon:focus {
  border-color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input.has-icon:focus + .input-icon {
  color: var(--color-primary);
}

.form-input.has-toggle {
  padding-right: 42px;
}

.toggle-password-btn {
  position: absolute;
  right: 14px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.toggle-password-btn:hover {
  color: var(--color-text-primary);
}

.premium-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 14px rgba(108, 92, 231, 0.4);
  margin-top: var(--space-sm);
  border-radius: var(--radius-md);
}

.premium-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(108, 92, 231, 0.5);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: var(--space-xl) 0;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.auth-divider hr {
  flex: 1;
  border: none;
  border-top: 1px solid var(--color-border);
}

.auth-divider span {
  padding: 0 12px;
  font-weight: 500;
}

.premium-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-primary);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.premium-google:hover {
  background: var(--color-surface-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.auth-terms {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xl);
  line-height: 1.6;
}

.auth-terms a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.auth-terms a:hover {
  text-decoration: underline;
}

/* Premium Profile Upgrade Hover Effects */
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.lifetime-card:hover {
  box-shadow: 0 0 32px rgba(108, 92, 231, 0.4) !important;
}

.btn-choose {
  transition: all 0.2s ease;
}

.btn-choose:hover {
  transform: scale(1.02);
}

/* Premium Profile Upgrade Responsive Layout */
.premium-profile-content {
  width: 100%;
  max-width: 700px; /* Wider for desktop */
  padding: var(--space-xl);
}

.upgrade-plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
  .upgrade-plans-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.upgrade-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  background: var(--color-surface);
  transition: transform 0.2s, box-shadow 0.2s;
}

.upgrade-card .btn-choose {
  margin-top: auto; /* Pushes button to the bottom to align heights */
}

.lifetime-card {
  border: 2px solid var(--color-primary);
  background: rgba(108, 92, 231, 0.08);
  position: relative;
  box-shadow: 0 0 24px rgba(108, 92, 231, 0.25);
}

/* Desktop layout */
@media (min-width: 768px) {
  .premium-profile-content {
    min-width: 600px; /* Minimum width on desktop */
  }
  
  .upgrade-plans-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}

/* ===== FAQ Section ===== */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-primary);
}

.faq-question {
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none; /* Hide default triangle */
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.faq-item[open] .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-item[open] .faq-question {
  border-bottom: 1px solid var(--color-border);
}

.faq-answer {
  padding: var(--space-md) var(--space-lg);
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .faq-answer {
  background: rgba(255, 255, 255, 0.02);
}

/* ===== PRO Feature Modals ===== */
.fmodal-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: var(--space-lg);
  padding-right: 32px;
}

.fmodal-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: var(--color-primary-light);
  border: 1px solid rgba(108, 92, 231, 0.22);
  flex-shrink: 0;
}

.fmodal-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  margin: 0;
  color: var(--color-text-primary);
}

.fmodal-desc {
  margin: 3px 0 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.fmodal-hint {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  padding: 12px 14px;
  margin-bottom: var(--space-lg);
  background: var(--color-primary-light);
  border: 1px solid rgba(108, 92, 231, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--color-text-secondary);
}

.fmodal-hint b {
  color: var(--color-text-primary);
  font-weight: 700;
}

.fmodal-panel {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px;
  margin-bottom: var(--space-lg);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.fmodal-field {
  flex: 1;
  min-width: 150px;
}

.fmodal-field > label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.fmodal-result {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
}