/* ==========================================================================
   Смарт Решения — page compositions
   --------------------------------------------------------------------------
   Layout blocks that belong to the marketing site rather than to the design
   system: the hero, the two solution pillars, the ATLAS layer switcher, the
   case rows. They compose DS tokens; they add no new colour of their own.
   ========================================================================== */

/* --------------------------------------------------------------- Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(4rem, 9vw, 7.5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}
.hero__inner { position: relative; }

.hero__title {
  margin-top: clamp(1.75rem, 4vw, 3rem);
  font-family: var(--font-display);
  font-weight: var(--weight-light);
  font-size: var(--type-display-l-size);
  line-height: var(--type-display-l-line);
  letter-spacing: var(--type-display-l-track);
  color: var(--text-primary);
  max-width: 16ch;
  text-wrap: balance;
}

/* Single column since the CFO/COO/CRO panel was removed. The lede caps at
   46ch on its own, so a second grid track would only reserve empty space. */
.hero__intro { margin-top: clamp(2.5rem, 5.5vw, 4.5rem); }

.hero__lede {
  font-size: var(--type-body-lg-size);
  line-height: var(--type-body-lg-line);
  color: var(--text-secondary);
  max-width: 46ch;
}
.hero__actions {
  margin-top: clamp(1.75rem, 3.5vw, 2.75rem);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
@media (max-width: 420px) {
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .sr-btn { width: 100%; }
}


/* ------------------------------------------------------------- KPI row */
.kpi-row {
  display: grid;
  /* 7rem, not 10rem: the row sits inside a padded glass panel, so a larger
     minimum drops it to two columns on a full-width desktop. */
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 7rem), 1fr));
  gap: clamp(1.5rem, 2.6vw, 2.25rem);
}

/* ------------------------------------------------------ Solution pillars */
.pillar {
  border: var(--border-hairline) solid var(--line-hairline);
  padding: clamp(1.75rem, 3.4vw, 3rem);
  height: 100%;
  transition: border-color var(--dur-base) var(--ease-out),
              background-color var(--dur-base) var(--ease-out);
}
.pillar:hover { border-color: var(--line-strong); background: var(--surface-subtle); }
.pillar__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-6);
  border-bottom: var(--border-hairline) solid var(--line-hairline);
}
.pillar__kicker { display: flex; align-items: center; gap: var(--space-3); color: var(--text-primary); }
.pillar__title {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  font-size: var(--type-h3-size);
  line-height: var(--type-h3-line);
  letter-spacing: var(--type-h3-track);
  font-weight: var(--weight-medium);
  max-width: 20ch;
}
.pillar__lede { margin-top: var(--space-4); font-size: var(--type-body-size); color: var(--text-secondary); }
.pillar__points {
  list-style: none;
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.pillar__points li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: var(--space-3);
  padding-top: var(--space-5);
  border-top: var(--border-hairline) solid var(--line-hairline);
  font-size: var(--type-body-sm-size);
  line-height: var(--type-body-sm-line);
  color: var(--text-primary);
}
.pillar__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
  color: var(--text-tertiary);
  padding-top: 0.15em;
}

/* ------------------------------------------------- ATLAS architecture band */
.arch { position: relative; }

.arch__flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--border-hairline);
  background: var(--line-hairline);
}
.arch__layer {
  text-align: left;
  padding: var(--space-6) var(--space-5) var(--space-6);
  background: var(--surface-inverse);
  border: 0;
  border-top: var(--rule-thick) solid var(--line-strong);
  cursor: pointer;
  transition: background-color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.arch__layer:hover { background: var(--surface-inverse-raised); }
.arch__layer[aria-selected='true'] {
  background: var(--surface-inverse-raised);
  border-top-color: var(--line-accent);
}
.arch__layer-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
  color: var(--text-tertiary);
  transition: color var(--dur-base) var(--ease-out);
}
.arch__layer[aria-selected='true'] .arch__layer-num { color: var(--text-accent); }
.arch__layer-name {
  display: block;
  margin-top: var(--space-4);
  font-family: var(--font-display);
  font-size: clamp(0.9375rem, 1.3vw, 1.125rem);
  font-weight: var(--weight-medium);
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  transition: color var(--dur-base) var(--ease-out);
}
.arch__layer[aria-selected='true'] .arch__layer-name { color: var(--text-primary); }

/* Six columns never fit a phone. Below 1100px the flow becomes a 3×2 block,
   then a 2×3, and finally a vertical stack — never a horizontal overflow. */
@media (max-width: 1100px) {
  .arch__flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .arch__flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .arch__layer { padding: var(--space-5) var(--space-4); }
}

.arch__panels { margin-top: clamp(2rem, 4vw, 3.5rem); }
.arch__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: var(--block-gap);
  animation: arch-panel-in var(--dur-slow) var(--ease-entrance);
}
@keyframes arch-panel-in {
  from { opacity: 0; transform: translate3d(0, 10px, 0); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .arch__panel { animation: none; }
}
.arch__panel-title {
  margin-top: var(--space-4);
  font-size: var(--type-h2-size);
  line-height: var(--type-h2-line);
  letter-spacing: var(--type-h2-track);
  font-weight: var(--weight-light);
}
.arch__panel-body {
  font-size: var(--type-body-lg-size);
  line-height: var(--type-body-lg-line);
  color: var(--text-secondary);
  max-width: 52ch;
}
@media (max-width: 900px) {
  .arch__panel { grid-template-columns: minmax(0, 1fr); gap: var(--space-6); }
}

/* ------------------------------------------------- Knowledge dimensions */
.dim {
  padding-top: var(--space-6);
  border-top: var(--rule-thick) solid var(--line-heavy);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: border-color var(--dur-base) var(--ease-out);
}
.dim:hover { border-top-color: var(--line-accent); }
.dim__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-primary);
}
.dim__title {
  margin-top: clamp(1.5rem, 2.6vw, 2rem);
  font-size: var(--type-h3-size);
  line-height: 1.2;
  letter-spacing: var(--type-h3-track);
  font-weight: var(--weight-medium);
}
.dim__claim { margin-top: var(--space-3); font-size: var(--type-body-size); color: var(--text-primary); }
.dim__body {
  margin-top: var(--space-4);
  font-size: var(--type-body-sm-size);
  line-height: var(--type-body-sm-line);
  color: var(--text-secondary);
  flex: 1;
}
.dim__foot {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: var(--border-hairline) solid var(--line-hairline);
}

/* ------------------------------------------------------------- Pull quote */
.pull {
  margin: var(--block-gap) 0 0;
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-top: var(--border-hairline) solid var(--line-hairline);
  border-bottom: var(--border-hairline) solid var(--line-hairline);
}
.pull__text {
  font-family: var(--font-display);
  font-size: var(--type-h2-size);
  line-height: var(--type-h2-line);
  letter-spacing: var(--type-h2-track);
  font-weight: var(--weight-light);
  max-width: 34ch;
  color: var(--text-primary);
}

/* ---------------------------------------------------------------- Why us */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: clamp(2rem, 4vw, 3rem);
}
.why-item {
  padding-top: var(--space-6);
  border-top: var(--border-hairline) solid var(--line-strong);
  color: var(--text-primary);
}
.why-item__title {
  margin-top: var(--space-5);
  font-weight: var(--weight-medium);
}
.why-item .sr-body-sm { margin-top: var(--space-3); }

/* ----------------------------------------------------------------- Cases */
.cases { display: flex; flex-direction: column; }
.case {
  display: grid;
  grid-template-columns: minmax(0, 180px) minmax(0, 1fr) minmax(0, 300px) 24px;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
  padding-block: clamp(1.5rem, 3vw, 2.5rem);
  border-top: var(--border-hairline) solid var(--line-hairline);
  text-decoration: none;
  color: inherit;
}
.cases > .case:last-child { border-bottom: var(--border-hairline) solid var(--line-hairline); }
.case__title {
  font-family: var(--font-display);
  font-size: var(--type-h3-size);
  line-height: 1.25;
  letter-spacing: var(--type-h3-track);
  font-weight: var(--weight-light);
  color: var(--text-primary);
}
.case__metrics { display: flex; gap: clamp(1.25rem, 2.5vw, 2rem); align-items: baseline; flex-wrap: wrap; }
.case__metric { display: flex; align-items: baseline; gap: 5px; }
.case__value {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.4vw, 1.875rem);
  font-weight: var(--weight-light);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}
.case__unit { font-size: 0.75rem; color: var(--text-tertiary); }
.case__arrow { color: var(--text-tertiary); }

@media (max-width: 1000px) {
  .case {
    grid-template-columns: minmax(0, 1fr) 24px;
    gap: var(--space-4);
    align-items: start;
  }
  .case__sector { grid-column: 1; }
  .case__title { grid-column: 1 / -1; }
  .case__metrics { grid-column: 1 / -1; }
  .case__arrow { grid-column: 2; grid-row: 1; justify-self: end; }
}

/* --------------------------------------------------------- Contact list */
.contact-list {
  list-style: none;
  margin-top: clamp(2rem, 4vw, 3rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.contact-list li { display: flex; align-items: center; gap: var(--space-3); }
.contact-list li .sr-icon { color: var(--text-tertiary); }
.contact-list a { font-size: var(--type-body-size); color: var(--text-primary); }
.contact-list a:hover { color: var(--text-accent); }