/* ==========================================================================
   Смарт Решения — design-system docs page
   Presentation for the documentation page only. Loaded on design-system.html.
   ========================================================================== */

.doc-cover { padding-bottom: clamp(3rem, 6vw, 5rem); }
.doc-cover .hero__title { max-width: 22ch; }

.doc-facts {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(50%, 8rem), 1fr));
  gap: var(--space-6);
  border-top: var(--border-hairline) solid var(--line-hairline);
  padding-top: var(--space-6);
}
.doc-facts dt {
  font-size: var(--type-overline-size);
  letter-spacing: var(--type-overline-track);
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.doc-facts dd {
  margin: var(--space-2) 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: var(--weight-light);
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

/* Sub-heading that opens each specimen block. */
.doc-sub {
  margin-top: clamp(3rem, 6vw, 5rem);
  margin-bottom: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--rule-thick) solid var(--line-heavy);
  font-family: var(--font-mono);
  font-size: var(--type-mono-size);
  letter-spacing: var(--type-mono-track);
  font-weight: var(--weight-regular);
  text-transform: none;
  color: var(--text-accent);
}

/* Neutral stage for a live component. */
.doc-demo {
  padding: clamp(1.25rem, 3vw, 2.25rem);
  border: var(--border-hairline) solid var(--line-hairline);
  border-radius: var(--radius-xs);
  background: var(--surface-subtle);
}
.doc-demo.sr-cards { background: none; border: 0; padding: 0; }

code {
  font-family: var(--font-mono);
  /* 0.8125em alone bottomed out at 10.5px inside .sr-table--dense, where the
     parent is already reduced — small enough to be genuinely hard to read.
     The floor keeps code proportional to its context but never below 12px. */
  font-size: max(0.8125em, 0.75rem);
  letter-spacing: 0.01em;
  color: var(--text-accent);
  /* Token values like cubic-bezier(.34,1.56,.64,1) have no spaces to break
     at, so without this they push out of a narrow table cell. */
  overflow-wrap: anywhere;
}

/* ------------------------------------------------------------- Swatches */
.doc-swatches {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 9rem), 1fr));
  gap: var(--space-4);
}
.doc-swatch { display: flex; flex-direction: column; gap: 6px; }
.doc-swatch__chip {
  height: 72px;
  border-radius: var(--radius-xs);
  border: var(--border-hairline) solid var(--line-hairline);
}

.doc-surface {
  display: flex;
  align-items: flex-end;
  min-height: 96px;
  padding: var(--space-4);
  border: var(--border-hairline) solid var(--line-hairline);
  border-radius: var(--radius-xs);
}

.doc-inline { font-family: var(--font-display); font-size: 1.125rem; }
.doc-line { display: block; width: 100%; height: 1px; margin-top: 0.6em; }

/* ------------------------------------------------------------- Spacing */
.doc-spaces { display: flex; flex-direction: column; gap: var(--space-2); }
.doc-space { display: flex; align-items: center; gap: var(--space-4); }
.doc-space span {
  height: 12px;
  flex: 0 0 auto;
  background: var(--line-accent);
  border-radius: 1px;
}

/* ---------------------------------------------------------- Type specimens */
.doc-type { display: flex; flex-direction: column; }
.doc-type__row {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: var(--space-7);
  align-items: baseline;
  padding-block: clamp(1.25rem, 2.6vw, 2rem);
  border-top: var(--border-hairline) solid var(--line-hairline);
}
.doc-type:last-child .doc-type__row:last-child { border-bottom: var(--border-hairline) solid var(--line-hairline); }
.doc-type__name { color: var(--text-tertiary); }
.doc-type__sample { color: var(--text-primary); }
@media (max-width: 760px) {
  .doc-type__row { grid-template-columns: minmax(0, 1fr); gap: var(--space-3); }
}

/* ---------------------------------------------------------------- Icons */
.doc-icons {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 7.5rem), 1fr));
  gap: var(--border-hairline);
  background: var(--line-hairline);
  border: var(--border-hairline) solid var(--line-hairline);
}
.doc-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-3);
  background: var(--surface-page);
  color: var(--text-primary);
  text-align: center;
  transition: background-color var(--dur-base) var(--ease-out);
}
.doc-icon:hover { background: var(--surface-card-hover); }
.doc-icon code { color: var(--text-tertiary); font-size: 0.6875rem; word-break: break-all; }

/* ---------------------------------------------------------------- Panels */
.doc-panel { padding-top: var(--space-6); }

.doc-steps-list {
  list-style: none;
  counter-reset: doc;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.doc-steps-list li {
  counter-increment: doc;
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: var(--space-3);
  font-size: var(--type-body-sm-size);
  line-height: var(--type-body-sm-line);
  color: var(--text-secondary);
}
.doc-steps-list li::before {
  content: counter(doc, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--type-mono-size);
  color: var(--text-accent);
}

/* ---------------------------------------------------------- Motion demos */
.doc-motion {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8rem), 1fr));
  gap: var(--space-5);
  /* The `left`/`right` reveal variants start offset horizontally, so a demo
     cell sitting on the page edge would push the document 22px wide before
     it animates in. Any container hosting a horizontal reveal needs to clip;
     this stage is the documented example of that rule. */
  overflow: hidden;
  overflow: clip;
}
.doc-motion__cell { display: flex; flex-direction: column; gap: var(--space-3); }
.doc-motion__box {
  height: 88px;
  border-radius: var(--radius-xs);
  border: var(--border-hairline) solid var(--glass-border);
  background: var(--glass-fill);
  box-shadow: var(--shadow-glass);
}

/* ----------------------------------------------------------- Legal prose */
.doc-prose {
  max-width: 72ch;
  font-size: var(--type-body-size);
  line-height: var(--type-body-line);
  color: var(--text-secondary);
}
.doc-prose h2 {
  margin-top: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-4);
  padding-top: var(--space-4);
  border-top: var(--border-hairline) solid var(--line-hairline);
  font-size: var(--type-h4-size);
  line-height: var(--type-h4-line);
  letter-spacing: var(--type-h4-track);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
}
.doc-prose h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.doc-prose p + p { margin-top: var(--space-4); }
.doc-prose ul {
  margin: var(--space-4) 0 0;
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.doc-prose li { display: grid; grid-template-columns: 1rem minmax(0, 1fr); gap: var(--space-3); }
.doc-prose li::before {
  content: '';
  margin-top: 0.75em;
  height: 1px;
  background: var(--line-strong);
}

/* ------------------------------------------------- Brandbook rule lists */
/* Do / don't lists. The icon carries the same meaning as the colour, so the
   rule still reads when printed in black and white or seen by someone who
   cannot separate red from green — which is itself one of the rules below. */
.doc-rules {
  list-style: none;
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
  max-width: 72ch;
}
.doc-rule {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  font-size: var(--type-body-sm-size);
  line-height: var(--type-body-line);
  color: var(--text-secondary);
  border: var(--border-hairline) solid var(--line-hairline);
  border-left-width: var(--rule-thick);
  border-radius: var(--radius-xs);
  background: var(--surface-subtle);
}
.doc-rule .sr-icon { margin-top: 0.15em; }
.doc-rule--do { border-left-color: var(--line-accent); }
.doc-rule--do .sr-icon { color: var(--text-accent); }
.doc-rule--dont { border-left-color: var(--line-strong); }
.doc-rule--dont .sr-icon { color: var(--text-tertiary); }