/* ============================================================
   GitImsi Components — Navigation, Footer, Modals, Tabs
   ============================================================ */

/* --- Navigation --- */
.nav-glass {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: var(--glass-bg-heavy);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.nav-glass.scrolled {
  background: rgba(10, 10, 15, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

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

/* Nav Dropdowns */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  cursor: pointer;
}

.nav-dropdown-trigger svg {
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 220px;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-dropdown);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  color: var(--text-primary);
  background: var(--accent-indigo-muted);
  padding-left: 1.25rem;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Mobile Toggle */
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: pointer;
  z-index: calc(var(--z-sticky) + 5);
}

.nav-mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 1024px) {
  .nav-mobile-toggle {
    display: flex;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    padding: 100px var(--space-xl) var(--space-xl);
    z-index: var(--z-sticky);
    align-items: flex-start;
    gap: var(--space-sm);
    overflow-y: auto;
  }

  .nav-links.mobile-open .nav-link {
    font-size: 1.1rem;
    padding: 0.75rem 1rem;
    width: 100%;
  }

  .nav-links.mobile-open .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: var(--bg-secondary);
    margin-top: var(--space-sm);
    min-width: 100%;
  }

  .nav-actions.mobile-open {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    z-index: calc(var(--z-sticky) + 2);
  }

  .nav-actions.mobile-open .btn {
    flex: 1;
  }
}

/* --- Footer --- */
.footer-glass {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-5xl) 0 var(--space-2xl);
  position: relative;
}

.footer-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-indigo), transparent);
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-4xl);
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-lg);
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-links-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-heading {
  font-size: 0.85rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.footer-links-group a {
  color: var(--text-tertiary);
  font-size: 0.875rem;
  padding: 4px 0;
  transition: all var(--transition-fast);
}

.footer-links-group a:hover {
  color: var(--accent-indigo-glow);
  padding-left: 6px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-bottom-links a:hover {
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .footer-desc { max-width: 100%; }
  .footer-heading { font-size: 0.8rem; margin-bottom: var(--space-sm); }
  .footer-links-group a { font-size: 0.82rem; }
}

@media (max-width: 480px) {
  .footer-glass { padding: var(--space-3xl) 0 var(--space-xl); }
  .footer-container { padding: 0 var(--space-md); }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer-brand { text-align: center; }
  .footer-brand .nav-logo { justify-content: center; }
  .footer-desc { text-align: center; margin: 0 auto; }

  .footer-links-group { align-items: center; text-align: center; }
  .footer-heading { font-size: 0.75rem; }
  .footer-links-group a { font-size: 0.8rem; padding: 6px 0; }
  .footer-links-group a:hover { padding-left: 0; }

  .footer-bottom { font-size: 0.72rem; padding-top: var(--space-lg); }
  .footer-bottom-links { flex-direction: column; gap: var(--space-sm); }
}

@media (max-width: 360px) {
  .footer-container { padding: 0 var(--space-sm); }
  .logo-text { font-size: 1.15rem; }
}

/* --- Tabs --- */
.tabs-container {
  display: flex;
  gap: 2px;
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  font-size: 0.85rem;
  font-weight: var(--font-weight-medium);
  color: var(--text-tertiary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-secondary);
}

.tab-btn.active {
  background: var(--accent-indigo);
  color: white;
  box-shadow: var(--shadow-sm);
}

.tab-content {
  display: none;
  padding: var(--space-xl) 0;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.modal-content {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 560px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: all var(--transition-spring);
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--accent-indigo-muted);
  color: var(--text-primary);
}

/* --- Toast Notifications --- */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform var(--transition-spring);
  max-width: 380px;
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left: 3px solid var(--accent-emerald);
}

.toast.error {
  border-left: 3px solid #ef4444;
}

.toast.info {
  border-left: 3px solid var(--accent-indigo);
}

/* --- Progress Bar --- */
.progress-bar {
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--accent-indigo), var(--accent-emerald));
  transition: width var(--transition-slow);
}

/* --- Accordion --- */
.accordion-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  font-weight: var(--font-weight-medium);
  text-align: left;
  transition: all var(--transition-fast);
}

.accordion-trigger:hover {
  background: var(--accent-indigo-soft);
}

.accordion-trigger svg {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

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

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion-item.open .accordion-body {
  max-height: 500px;
}

.accordion-content {
  padding: 0 var(--space-xl) var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* --- Tooltip --- */
.tooltip-wrapper {
  position: relative;
  display: inline-block;
}

.tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.tooltip-wrapper:hover .tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* --- Skeleton Loader --- */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  margin-bottom: 0.75em;
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 16/9;
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Marquee --- */
.marquee-container {
  overflow: hidden;
  position: relative;
  width: 100%;
}

.marquee-container::before,
.marquee-container::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100px;
  z-index: 2;
}

.marquee-container::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-primary), transparent);
}

.marquee-container::after {
  right: 0;
  background: linear-gradient(-90deg, var(--bg-primary), transparent);
}

.marquee-track {
  display: flex;
  gap: var(--space-xl);
  animation: marquee 30s linear infinite;
  width: max-content;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Code Block --- */
.code-block {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-lg);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.code-dots {
  display: flex;
  gap: 6px;
}

.code-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-dots span:nth-child(1) { background: #ef4444; }
.code-dots span:nth-child(2) { background: #f59e0b; }
.code-dots span:nth-child(3) { background: #10b981; }

.code-lang {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
}

.code-body {
  padding: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
}

.code-body .keyword { color: var(--accent-indigo-glow); }
.code-body .string { color: var(--accent-emerald-glow); }
.code-body .function { color: var(--accent-amber-glow); }
.code-body .comment { color: var(--text-tertiary); font-style: italic; }
.code-body .number { color: #f472b6; }

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

.toggle-switch input {
  display: none;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--accent-indigo);
  border-color: var(--accent-indigo);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(22px);
  background: white;
}

/* --- Pricing Toggle --- */
.pricing-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-3xl);
}

.pricing-toggle .toggle-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-toggle .toggle-label.active {
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
}

.pricing-toggle .save-badge {
  background: var(--accent-emerald-muted);
  color: var(--accent-emerald-glow);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold);
}