/* Site header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.header-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: opacity 0.15s ease;
}

.logo:hover {
  color: var(--color-text);
  opacity: 0.85;
}

.logo-img {
  width: 1.75rem;
  height: 1.75rem;
  object-fit: contain;
  border-radius: 0.25rem;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  position: relative;
  padding: 0.5rem 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 0.375rem;
  transition: color 0.15s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0.25rem;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transform: translateX(-50%);
  transition: width 0.2s ease;
  border-radius: 1px;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: calc(100% - 1.5rem);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  background: var(--color-bg-elevated);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  width: 1.125rem;
  height: 1.125rem;
}

html[data-theme="light"] .icon-moon,
html[data-theme="dark"] .icon-sun {
  display: none;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  background: var(--color-bg-elevated);
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 0 1.5rem 1rem;
  border-top: 1px solid var(--color-border);
  background: var(--header-bg);
}

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

.nav-mobile .nav-link {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.nav-mobile .nav-link:last-child {
  border-bottom: none;
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  margin-top: auto;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.footer-inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.footer-copy a {
  color: var(--color-text-muted);
  font-weight: 500;
}

.footer-copy a:hover {
  color: var(--color-accent);
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links a {
  font-size: 0.875rem;
  font-weight: 500;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

/* Hero */
.hero {
  padding: 2rem 0 1rem;
  animation: fadeInUp 0.4s ease forwards;
}

.hero-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 1rem;
}

.hero h1 {
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-link:hover {
  color: inherit;
}

/* Pipeline */
.pipeline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  font-family: ui-monospace, monospace;
  font-size: 0.875rem;
}

.pipeline-step {
  padding: 0.35rem 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
}

.pipeline-arrow {
  color: var(--color-text-muted);
  user-select: none;
}

/* Badge */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.6rem;
  border-radius: 0.25rem;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

.badge-soon {
  background: rgba(234, 179, 8, 0.15);
  color: #ca8a04;
}

html[data-theme="dark"] .badge-soon {
  color: #facc15;
}

/* Docs layout */
.docs-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) {
  .docs-layout {
    grid-template-columns: 14rem 1fr;
    align-items: start;
  }
}

.docs-sidebar {
  display: none;
}

@media (min-width: 900px) {
  .docs-sidebar {
    display: block;
    position: sticky;
    top: 5rem;
  }

  .docs-sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .docs-sidebar li {
    margin-bottom: 0.25rem;
  }

  .docs-sidebar a {
    display: block;
    padding: 0.35rem 0;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
  }

  .docs-sidebar a:hover {
    color: var(--color-accent);
  }
}

.docs-cards .card {
  opacity: 0;
  transform: translateY(12px);
}

.docs-cards .card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

/* Content blocks */
.content-block {
  margin-bottom: 2.5rem;
}

.content-block h2 {
  margin-top: 0;
  padding-top: 0.5rem;
}

.platform-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .platform-grid {
    grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  }
}

.platform-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

.platform-card h3 {
  margin-bottom: 0.75rem;
}

/* Compare table */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.compare-table th,
.compare-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid var(--color-border);
}

.compare-table th {
  background: var(--color-bg-elevated);
  font-weight: 600;
}

.compare-table code {
  font-size: 0.8125rem;
}

/* Fade animations */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feature-grid .card {
  opacity: 0;
  transform: translateY(12px);
}

.feature-grid .card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease, transform 0.4s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}