/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: var(--transition);
  white-space: nowrap;
  user-select: none;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.0625rem;
  border-radius: var(--radius-md);
}

.btn-primary {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  box-shadow: var(--btn-primary-shadow);
}

.btn-primary:hover {
  background-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--btn-secondary-border);
  color: var(--btn-secondary-text);
}

.btn-secondary:hover {
  background-color: var(--btn-secondary-hover);
  border-color: var(--border-focus);
}

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

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background-color: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--status-success);
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

[data-theme="light"] .navbar,
html.theme-light .navbar {
  background-color: rgba(255, 255, 255, 0.85);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.nav-brand-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--text-primary);
  animation: pulse-dot 2.5s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme & Locale Toggles in Nav */
.select-control {
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}

.select-control:focus, .select-control:hover {
  border-color: var(--border-focus);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--btn-secondary-bg);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: pointer;
}

.icon-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
}

.mobile-toggle {
  display: none;
}

/* Cards */
.card {
  background-color: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  box-shadow: var(--card-shadow);
}

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

/* Pricing Grid & Card */
.pricing-toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 48px;
}

.billing-switch {
  display: inline-flex;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 4px;
  gap: 4px;
}

.billing-switch-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}

.billing-switch-btn.active {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  box-shadow: var(--btn-primary-shadow);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  transition: var(--transition);
}

.pricing-card.featured {
  border-color: var(--border-focus);
  background-color: var(--bg-surface);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .pricing-card.featured {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}

.pricing-header {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  min-height: 42px;
}

.pricing-price-wrap {
  margin: 16px 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.pricing-amount {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.pricing-interval {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.pricing-features-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.pricing-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.pricing-feature-item strong {
  color: var(--text-primary);
}

.pricing-feature-icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  color: var(--status-success);
}

/* FAQ Accordion */
.faq-category-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.faq-tab {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.faq-tab.active, .faq-tab:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-focus);
  color: var(--text-primary);
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item {
  background-color: var(--bg-surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  text-align: left;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  cursor: pointer;
}

.accordion-trigger:hover {
  background-color: var(--bg-surface-hover);
}

.accordion-chevron {
  width: 20px;
  height: 20px;
  transition: transform 0.25s ease;
  color: var(--text-muted);
}

.accordion-item.open .accordion-chevron {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1), padding 0.3s ease;
}

.accordion-item.open .accordion-content {
  max-height: 500px;
  padding: 0 24px 24px 24px;
}

.accordion-body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  padding: 64px 0 40px 0;
  margin-top: 120px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 64px;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: rgba(9, 9, 11, 0.95);
  backdrop-filter: blur(20px);
  padding: 24px;
  flex-direction: column;
}

.mobile-drawer.open {
  display: flex;
}