.av-stack {
  display: flex;
  flex-direction: column;
  gap: var(--av-stack-gap, var(--av-v1-space-md));
}

/* Responsive gap variants */
.av-stack.gap-xs {
  gap: var(--av-v1-space-xs);
}

.av-stack.gap-sm {
  gap: var(--av-v1-space-sm);
}

.av-stack.gap-md {
  gap: var(--av-v1-space-md);
}

.av-stack.gap-lg {
  gap: var(--av-v1-space-lg);
}

.av-stack.gap-xl {
  gap: var(--av-v1-space-xl);
}

@media (min-width: var(--av-v1-bp-tablet)) {
  .av-stack.row-tablet {
    flex-direction: row;
    align-items: flex-start;
  }

  .av-stack.row-center-tablet {
    flex-direction: row;
    align-items: center;
  }
}

@media (min-width: var(--av-v1-bp-desktop)) {
  .av-stack.row-desktop {
    flex-direction: row;
    align-items: flex-start;
  }

  .av-stack.row-wrap-desktop {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

.av-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--av-inline-gap, var(--av-v1-space-sm));
}

.av-surface {
  background: var(--av-v1-color-surface);
  border: 1px solid var(--av-v1-color-outline);
  border-radius: var(--av-v1-radius-lg);
  box-shadow: 0 3px 10px rgb(21 36 43 / 0.12);
  padding: clamp(1rem, 1.5vw, 1.5rem);
}

@media (min-width: var(--av-v1-bp-desktop)) {
  .av-surface.pd-lg-desktop {
    padding: clamp(1.5rem, 2.5vw, 2rem);
  }
}

.av-section-container {
  max-width: 840px;
  margin: 0 auto;
}

.av-site-header {
  border: 1px solid var(--av-v1-color-outline);
  border-radius: var(--av-v1-radius-lg);
  background: var(--av-v1-color-surface);
  box-shadow: 0 4px 14px rgb(21 36 43 / 0.14);
}

.av-site-header-inner {
  display: grid;
  gap: var(--av-v1-space-md);
  padding: var(--av-v1-space-md);
}

.av-site-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--av-v1-space-sm);
  text-decoration: none;
}

.av-site-logo {
  width: auto;
  height: 34px;
  max-width: 160px;
  object-fit: contain;
}

.av-site-header-controls {
  display: grid;
  gap: var(--av-v1-space-sm);
}

.av-site-menu-wrap {
  position: relative;
}

.av-site-menu-button {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--av-v1-space-xs);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--av-v1-color-outline);
  background: var(--av-v1-color-surface);
  color: var(--av-v1-color-text);
  font: 600 0.95rem/1 var(--av-v1-font-label);
  cursor: pointer;
}

.av-site-menu-button:hover {
  border-color: var(--av-v1-color-primary);
}

.av-site-menu-icon {
  font-size: 1rem;
  line-height: 1;
}

.av-site-menu-dropdown {
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 0;
  width: 100%;
  max-width: min(360px, 92vw);
  z-index: 20;
  display: grid;
  gap: 0;
  border: 1px solid var(--av-v1-color-outline);
  border-radius: var(--av-v1-radius-md);
  background: var(--av-v1-color-surface);
  box-shadow: var(--av-v1-shadow-md);
  padding: 0.35rem;
}

.av-site-menu-dropdown[hidden],
.av-site-search-results[hidden] {
  display: none !important;
}

.av-site-menu-dropdown a {
  border-radius: 0.55rem;
  color: var(--av-v1-color-text);
  padding: 0.55rem 0.7rem;
  text-decoration: none;
  font: 500 0.95rem/1.3 var(--av-v1-font-body);
}

.av-site-menu-dropdown a:hover {
  background: color-mix(in srgb, var(--av-v1-color-primary) 13%, white);
  color: var(--av-v1-color-primary-strong);
}

.av-site-search-wrap {
  position: relative;
}

.av-site-search-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.av-site-search-input {
  width: 100%;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--av-v1-color-outline);
  background: var(--av-v1-color-surface);
  color: var(--av-v1-color-text);
  font: 500 0.95rem/1.2 var(--av-v1-font-body);
}

.av-site-search-input:focus-visible {
  outline: 2px solid var(--av-v1-color-focus);
  outline-offset: 2px;
}

.av-site-search-results {
  position: absolute;
  top: calc(100% + 0.4rem);
  left: 0;
  right: 0;
  z-index: 25;
  display: grid;
  gap: 0;
  border: 1px solid var(--av-v1-color-outline);
  border-radius: var(--av-v1-radius-md);
  background: var(--av-v1-color-surface);
  box-shadow: var(--av-v1-shadow-md);
  padding: 0.35rem;
}

.av-site-search-result-item,
.av-site-search-empty {
  border-radius: 0.55rem;
  padding: 0.6rem 0.7rem;
}

.av-site-search-result-item {
  text-decoration: none;
  display: grid;
  gap: 0.2rem;
}

.av-site-search-result-item:hover {
  background: color-mix(in srgb, var(--av-v1-color-primary) 13%, white);
}

.av-site-search-result-title {
  color: var(--av-v1-color-text);
  font: 600 0.92rem/1.2 var(--av-v1-font-label);
}

.av-site-search-result-summary {
  color: var(--av-v1-color-text-soft);
  font: 400 0.82rem/1.35 var(--av-v1-font-body);
}

.av-site-search-empty {
  color: var(--av-v1-color-text-soft);
  font: 500 0.86rem/1.2 var(--av-v1-font-body);
}

.av-site-footer {
  border: 1px solid var(--av-v1-color-outline);
  border-radius: var(--av-v1-radius-lg);
  background: linear-gradient(170deg, var(--av-v1-color-surface), var(--av-v1-color-surface-strong));
  box-shadow: var(--av-v1-shadow-sm);
}

.av-site-footer-inner {
  display: grid;
  gap: var(--av-v1-space-lg);
  padding: var(--av-v1-space-lg);
}

.av-site-footer h3 {
  margin: 0 0 var(--av-v1-space-xs);
  color: var(--av-v1-color-primary-strong);
  font: 700 1rem/1.2 var(--av-v1-font-header);
}

.av-site-footer p,
.av-site-footer li {
  color: var(--av-v1-color-text-soft);
  font: 400 0.92rem/1.45 var(--av-v1-font-body);
}

.av-site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}

.av-site-footer a {
  color: var(--av-v1-color-primary-strong);
  text-decoration: none;
}

.av-site-footer a:hover {
  text-decoration: underline;
}

.av-site-footer-bottom {
  border-top: 1px solid var(--av-v1-color-outline);
  color: var(--av-v1-color-text-soft);
  font: 500 0.85rem/1.2 var(--av-v1-font-body);
  padding: var(--av-v1-space-sm) var(--av-v1-space-lg) var(--av-v1-space-lg);
}

.av-composition-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--av-v1-space-xs);
}

.av-composition-header-bar {
  display: grid;
  gap: var(--av-v1-space-sm);
  align-items: center;
}

.av-composition-brand-block {
  display: flex;
  align-items: center;
  gap: var(--av-v1-space-sm);
  min-width: 0;
}

.av-composition-brand-logo {
  width: auto;
  height: 40px;
  max-width: 152px;
  object-fit: contain;
  flex-shrink: 0;
}

.av-composition-header-search,
.av-composition-header-actions {
  min-width: 0;
}

.av-composition-header-actions {
  display: flex;
  justify-content: flex-start;
}

.av-composition-toolbar,
.av-composition-results-grid,
.av-composition-settings-grid,
.av-composition-shell-grid,
.av-composition-sidebar-stack,
.av-composition-shell-main,
.av-composition-results-list,
.av-composition-stat-grid {
  display: grid;
  gap: var(--av-v1-space-xs);
}

.av-compositions-page {
  display: grid;
  gap: var(--av-v1-space-sm);
}

.av-compositions-page > p {
  margin: 0;
}

.av-compositions-page > h2 {
  margin: 0.5rem 0 0;
}

.av-compositions-page > h2 + p {
  margin: 0;
}

.av-compositions-page > av-surface,
.av-compositions-page > av-menu {
  margin: 0;
}

.av-composition-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--av-v1-space-2xs);
}

.av-composition-muted {
  color: var(--av-v1-color-text-soft);
  font: 500 0.9rem/1.35 var(--av-v1-font-body);
}

.av-composition-result-card,
.av-composition-stat-card {
  border: 1px solid color-mix(in srgb, var(--av-v1-color-outline) 60%, white);
  border-radius: var(--av-v1-radius-md);
  background: color-mix(in srgb, var(--av-v1-color-surface) 82%, var(--av-v1-color-surface-strong));
  box-shadow: var(--av-v1-shadow-sm);
}

.av-composition-result-card {
  display: grid;
  gap: var(--av-v1-space-xs);
  padding: var(--av-v1-space-sm);
}

.av-composition-result-card h4 {
  margin: 0;
  color: var(--av-v1-color-primary-strong);
  font: 700 1rem/1.2 var(--av-v1-font-header);
}

.av-composition-result-card p {
  margin: 0;
  color: var(--av-v1-color-text-soft);
}

.av-composition-result-topline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--av-v1-space-xs);
}

.av-composition-eyebrow {
  color: var(--av-v1-color-primary-strong);
  font: 700 0.76rem/1 var(--av-v1-font-label);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.av-composition-stat-grid {
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
}

.av-composition-stat-card {
  padding: 0.7rem;
}

.av-composition-stat-card strong {
  display: block;
  color: var(--av-v1-color-primary-strong);
  font: 700 1.3rem/1 var(--av-v1-font-header);
}

.av-composition-stat-card span {
  display: block;
  margin-top: 0.2rem;
  color: var(--av-v1-color-text-soft);
  font: 500 0.82rem/1.3 var(--av-v1-font-body);
}

@media (min-width: var(--av-v1-bp-tablet)) {
  .av-site-header-inner {
    grid-template-columns: minmax(220px, 1fr) minmax(360px, 1fr);
    align-items: center;
    gap: var(--av-v1-space-lg);
  }

  .av-site-menu-dropdown {
    width: min(340px, 70vw);
  }

  .av-site-footer-inner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .av-composition-header-bar {
    grid-template-columns: minmax(0, 1.15fr) minmax(260px, 1fr) auto;
  }

  .av-composition-header-actions {
    justify-content: flex-end;
  }

  .av-composition-toolbar,
  .av-composition-settings-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: var(--av-v1-bp-desktop)) {
  .av-composition-results-grid,
  .av-composition-shell-grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.85fr);
    align-items: start;
  }
}

@media (min-width: var(--av-v1-bp-large)) {
  .av-section-container {
    max-width: 1000px;
  }
}