html { font-size: calc(16px * var(--font-scale, 1)); }
*,*::before,*::after { box-sizing: border-box; }
body { counter-reset: block-demo; }

[data-block] + [data-block] { margin-top: var(--space-2xl); }
[data-block="text-heading"] + [data-block="text-body"],
[data-block="text-heading"] + [data-block="list-simple"] { margin-top: var(--space-sm); }
img { max-width: 100%; height: auto; display: block; }
:where(svg:not([width])) { width: 1em; height: 1em; }
button { cursor: pointer; font: inherit; }
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}
.page-header { position: sticky; top: 0; z-index: 40; display: grid; grid-template-columns: minmax(0,1fr) minmax(12rem,20rem); gap: var(--space-4); padding: var(--space-4) var(--space-6); background: var(--color-bg); border-bottom: 1px solid var(--color-divider); }
.page-header[data-sticky="false"] { position: static; }
.page-title { margin: 0; font-family: var(--font-display); font-size: var(--text-xl); color: var(--color-anthrazit); }
.layout-shell { display: grid; grid-template-columns: minmax(14rem,21rem) minmax(0,1fr); gap: var(--space-6); padding: var(--space-6); }
.sidebar-shell { position: sticky; top: calc(var(--space-6) + 4rem); max-height: calc(100vh - 7rem); overflow: auto; }
.group-shell { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); margin-bottom: var(--space-3); overflow: hidden; }
.group-shell summary { background: var(--color-primary-faint); padding: var(--space-3) var(--space-4); font-weight: 600; cursor: pointer; list-style: none; }
.group-shell summary::-webkit-details-marker { display: none; }
.group-shell ul { list-style: none; margin: 0; padding: var(--space-2); }
.group-shell li a { display: block; padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm); text-decoration: none; font-size: var(--text-sm); }
.group-shell li a:hover,.group-shell li a.is-active { background: var(--color-primary-soft); }
.main-shell { display: grid; gap: var(--space-6); }
.block-demo-shell { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.block-demo-shell { counter-increment: block-demo; }
.block-demo-header { display: grid; gap: var(--space-1); padding: var(--space-4); background: var(--color-surface); border-bottom: 1px solid var(--color-border); }
.block-demo-title { margin: 0; font-family: var(--font-display); font-size: var(--text-lg); }
.block-demo-file { margin: 0; color: var(--color-text-faint); font-size: var(--text-sm); }
.block-demo-preview { padding: var(--space-4); }
.block-demo-actions { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-top: 1px solid var(--color-border); }
.block-demo-actions details { border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-bg); padding: var(--space-2) var(--space-3); }
.block-demo-actions summary { cursor: pointer; color: var(--color-anthrazit); font-size: var(--text-sm); }
.block-demo-actions label { color: var(--color-text-muted); font-size: var(--text-sm); }
.block-demo-actions input[type="text"], .block-demo-actions select {
  width: 100%; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2); font: inherit;
}
.ui-button { border: 1px solid var(--color-primary); background: var(--color-primary); color: var(--color-text-inverse); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); }
.ui-button:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.ui-button--ghost { background: transparent; color: var(--color-anthrazit); }
.page-footer { border-top: 1px solid var(--color-divider); margin-top: var(--space-8); padding: var(--space-6); }
@media (max-width: 1000px) {
  .layout-shell { grid-template-columns: 1fr; }
  .sidebar-shell { position: static; max-height: none; }
}
.block-demo-shell { transition: box-shadow var(--transition), transform var(--transition); }
.block-demo-shell:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.is-revealed { animation: var(--animate-in); }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes scale-in {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 oklch(0.65 0.15 35 / 0.45); }
  100% { box-shadow: 0 0 0 10px oklch(0.65 0.15 35 / 0); }
}
@keyframes slide-in-right {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 767px) { .cms-hide-mobile  { display: none !important; } }
@media (min-width: 768px) { .cms-hide-desktop { display: none !important; } }


.cms-bg-surface       { background: var(--color-surface); }
.cms-bg-surface-2     { background: var(--color-surface-2); }
.cms-bg-surface-warm  { background: var(--color-surface-warm); }
.cms-bg-primary-soft  { background: var(--color-primary-soft); }
.cms-bg-primary-pale  { background: var(--color-primary-pale); }
.cms-bg-secondary-pale{ background: var(--color-secondary-pale); }
.cms-bg-accent-soft   { background: var(--color-accent-soft); }
.cms-bg-anthrazit     { background: var(--color-anthrazit); color: var(--color-text-inverse); }
.cms-bg-none          { background: transparent; }

.cms-fg-text          { color: var(--color-text); }
.cms-fg-text-muted    { color: var(--color-text-muted); }
.cms-fg-text-inverse  { color: var(--color-text-inverse); }
.cms-fg-primary       { color: var(--color-primary); }
.cms-fg-secondary     { color: var(--color-secondary); }
.cms-fg-accent        { color: var(--color-accent); }

.cms-pad-none { padding: 0; }
.cms-pad-sm   { padding: var(--space-sm); }
.cms-pad-md   { padding: var(--space-md); }
.cms-pad-lg   { padding: var(--space-lg); }
.cms-pad-xl   { padding: var(--space-xl); }

.cms-radius-none { border-radius: 0; }
.cms-radius-sm   { border-radius: var(--radius-sm); }
.cms-radius-md   { border-radius: var(--radius-md); }
.cms-radius-lg   { border-radius: var(--radius-lg); }
.cms-radius-full { border-radius: var(--radius-full); }

.cms-shadow-none { box-shadow: none; }
.cms-shadow-sm   { box-shadow: var(--shadow-sm); }
.cms-shadow-md   { box-shadow: var(--shadow-md); }
.cms-shadow-lg   { box-shadow: var(--shadow-lg); }
.cms-shadow-xl   { box-shadow: var(--shadow-xl); }

.cms-border-none  { border: 0; }
.cms-border-thin  { border: 1px solid var(--color-border); }
.cms-border-thick { border: 3px solid var(--color-border); }

[class*="cms-bg-"]:not(.cms-bg-none) { background-clip: padding-box; }

.cms-glass-light {
  background: var(--glass-bg-light);
  border: 1px solid var(--glass-border-soft);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}
.cms-glass-dark {
  background: var(--glass-bg-dark);
  border: 1px solid var(--glass-border-soft);
  color: var(--color-text-inverse);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.block-slider-dots { display: flex; gap: 6px; justify-content: center; margin-top: .6rem; }
.block-slider-dot { width: 9px; height: 9px; border-radius: 50%; border: 0; padding: 0; background: var(--color-border); cursor: pointer; }
.block-slider-dot.is-active { background: var(--color-primary); }
.block-blog-empty { color: var(--color-text-muted); font-style: italic; padding: 1rem 0; }