/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   КИСЛОВОДСК 2.0 · ОСНОВНЫЕ СТИЛИ ТЕМЫ
   Стиль: инженерный паспорт / технический документ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* ───── ДИЗАЙН-ТОКЕНЫ ───── */
:root {
  --bg:          #FAFAF7;
  --bg-card:     #FFFFFF;
  --bg-dark:     #0F1419;
  --ink:         #0F1419;
  --ink-2:       #4A5159;
  --ink-3:       #8B9097;
  --line:        #E2E1DC;
  --line-2:      #D0CFC9;
  --accent:      #1E40AF;
  --indigo:      #1E40AF;
  --indigo-soft: #EEF2FA;
  --green:       #1B7A3F;
  --status:      #4CAF50;

  --sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;

  --grid: 1320px;
  --pad-x: clamp(20px, 4vw, 56px);
}

/* ───── RESET ───── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.site-wrap { display: flex; flex-direction: column; flex: 1; min-height: 100vh; }
main.site-main { flex: 1; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }

/* admin-bar fix */
body.admin-bar .site-wrap { min-height: calc(100vh - 32px); }
@media (max-width: 782px) {
  body.admin-bar .site-wrap { min-height: calc(100vh - 46px); }
}

/* ───── PRIMITIVES ───── */
.container { max-width: var(--grid); margin: 0 auto; padding: 0 var(--pad-x); }
.mono { font-family: var(--mono); font-feature-settings: "tnum"; }
.label-meta {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
  background: var(--bg-card);
}
.stamp i { width: 6px; height: 6px; background: var(--indigo); border-radius: 50%; }

/* ───── BUTTONS ───── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
}
.btn--primary { background: var(--ink); color: var(--bg); }
.btn--primary:hover { background: var(--indigo); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--lg { padding: 16px 28px; font-size: 15px; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ХЕДЕР И ФУТЕР
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
  text-transform: uppercase;
}
.topbar__left { display: flex; gap: 32px; }
.topbar__left span { display: inline-flex; align-items: center; gap: 8px; }
.topbar__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--status); box-shadow: 0 0 0 3px rgba(76,175,80,0.15); }
.topbar__right { display: flex; gap: 24px; }

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}
body.admin-bar .site-header { top: 32px; }
@media (max-width: 782px) {
  body.admin-bar .site-header { top: 46px; }
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 40px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.logo__mark {
  width: 38px;
  height: 38px;
  background: var(--ink);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 16px;
  border-radius: 2px;
  flex-shrink: 0;
}
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__name { font-weight: 600; font-size: 16px; letter-spacing: -0.01em; }
.logo__sub { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 2px; }

.main-nav { display: flex; gap: 36px; flex: 1; justify-content: center; }
.main-nav ul { list-style: none; display: flex; gap: 36px; margin: 0; padding: 0; }
.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
  display: inline-block;
}
.main-nav a:hover { color: var(--indigo); }
.main-nav .current-menu-item > a,
.main-nav .current_page_item > a,
.main-nav a.is-active {
  color: var(--indigo);
}
.main-nav .current-menu-item > a::after,
.main-nav .current_page_item > a::after,
.main-nav a.is-active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--indigo);
}

.site-header__cta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}
.phone {
  display: flex;
  flex-direction: column;
  text-align: right;
  line-height: 1.2;
}
.phone__num { font-family: var(--mono); font-weight: 500; font-size: 15px; color: var(--ink); }
.phone__sub { font-size: 12px; color: var(--ink-3); letter-spacing: 0.04em; margin-top: 3px; }

/* FOOTER */
.site-footer {
  background: var(--bg);
  padding: 72px 0 32px;
  border-top: 1px solid var(--line);
  margin-top: auto;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.4fr;
  gap: 56px;
  padding-bottom: 52px;
  border-bottom: 1px solid var(--line);
}
.site-footer__brand .logo { margin-bottom: 18px; }
.site-footer__brand p { font-size: 14px; color: var(--ink-2); line-height: 1.55; max-width: 280px; }
.site-footer h5 {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.site-footer__col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.site-footer__col a { font-size: 14px; color: var(--ink); transition: color 0.15s; }
.site-footer__col a:hover { color: var(--indigo); }
.site-footer__contacts { display: flex; flex-direction: column; gap: 16px; font-size: 14px; }
.site-footer__contacts > div { display: flex; gap: 12px; align-items: flex-start; }
.site-footer__contacts small { display: block; font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 4px; }
.site-footer__contacts b { font-weight: 500; }
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.site-footer__bottom a:hover { color: var(--ink); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ОБЩИЕ СЕКЦИИ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.section {
  border-bottom: 1px solid var(--line);
  position: relative;
}
.section__head {
  display: flex;
  align-items: baseline;
  gap: 32px;
  padding: 28px 0 24px;
  border-bottom: 1px solid var(--line);
}
.section__num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--indigo);
  letter-spacing: 0.08em;
}
.section__kind {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.section__body { padding: 64px 0 96px; }

/* Заголовок страницы (для /partners, /contact, /404, /single и т.д.) */
.page-head {
  padding: 56px 0 40px;
  border-bottom: 1px solid var(--line);
}
.page-head__meta {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  gap: 10px;
}
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { color: var(--line-2); }
.page-head h1 {
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02;
  font-weight: 600;
  letter-spacing: -0.025em;
  max-width: 900px;
  margin-bottom: 20px;
}
.page-head h1 em { font-style: normal; color: var(--indigo); }
.page-head__lead {
  font-size: 18px;
  color: var(--ink-2);
  line-height: 1.55;
  max-width: 720px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ГЛАВНАЯ — HERO, KPI, TECH, COMPARE, CASE, APPS, PATENT
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* HERO */
.hero {
  padding: 72px 0 96px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 72px;
  align-items: stretch;
}
.hero__left { display: flex; flex-direction: column; justify-content: center; }
.hero__stamps { display: flex; gap: 10px; margin-bottom: 36px; flex-wrap: wrap; }
.hero h1 {
  font-family: var(--sans);
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 0.98;
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 28px;
}
.hero h1 em { font-style: normal; color: var(--indigo); font-weight: 600; }
.hero__lead {
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-2);
  margin-bottom: 36px;
  max-width: 580px;
}
.hero__keys { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; margin-bottom: 44px; }
.hero__key {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  padding: 9px 16px;
  background: var(--indigo-soft);
  border-radius: 2px;
  letter-spacing: 0.02em;
}
.hero__key b { color: var(--indigo); font-weight: 600; }
.hero__actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.hero__right {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.hero__diagram-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero__diagram { flex: 1; display: flex; align-items: center; justify-content: center; position: relative; min-height: 0; overflow: hidden; }
.hero__diagram img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.hero__diagram svg { width: 100%; height: 100%; max-height: 460px; }
.hero__diagram-foot {
  border-top: 1px solid var(--line);
  padding: 16px 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
}
.hero__diagram-foot > div { display: flex; flex-direction: column; gap: 3px; }
.hero__diagram-foot small { color: var(--ink-3); font-size: 11px; letter-spacing: 0.05em; }
.hero__diagram-foot b { font-weight: 600; font-size: 14px; color: var(--ink); }

/* KPI */
.kpi {
  border-bottom: 1px solid var(--line);
  padding: 64px 0;
  background: var(--bg);
}
.kpi__board {
  background: var(--bg-dark);
  color: var(--bg);
  border-radius: 4px;
  overflow: hidden;
}
.kpi__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.kpi__item {
  padding: 48px 32px;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.kpi__item:last-child { border-right: none; }
.kpi__label {
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.kpi__num {
  font-family: var(--mono);
  font-size: 68px;
  line-height: 0.95;
  font-weight: 500;
  color: #FFFFFF;
  letter-spacing: -0.04em;
  margin-bottom: 14px;
}
.kpi__cap { font-size: 15px; color: rgba(255,255,255,0.75); line-height: 1.45; }

/* TECH GRID */
.tech-intro {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  margin-bottom: 56px;
  align-items: end;
}
.tech-intro h2 {
  font-size: clamp(32px, 3.4vw, 48px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.tech-intro p {
  font-size: 17px;
  color: var(--ink-2);
  line-height: 1.55;
  max-width: 540px;
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  background: var(--bg-card);
}
.tech-card {
  padding: 36px 32px 40px;
  border-right: 1px solid var(--line);
}
.tech-card:last-child { border-right: none; }
.tech-card__num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-bottom: 28px;
}
.tech-card__icon { margin-bottom: 24px; height: 64px; display: flex; align-items: center; }
.tech-card h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}
.tech-card p { font-size: 15px; color: var(--ink-2); line-height: 1.6; }
.tech-card__feature {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
}
.tech-card__feature span { color: var(--ink-3); letter-spacing: 0.05em; text-transform: uppercase; font-size: 12px; }
.tech-card__feature b { color: var(--ink); font-weight: 600; font-size: 14px; }

/* COMPARE */
.compare {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.compare__head { display: grid; grid-template-columns: 1.4fr 1fr 1fr 0.8fr; background: var(--bg); border-bottom: 1px solid var(--line); }
.compare__head > div {
  padding: 18px 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-right: 1px solid var(--line);
}
.compare__head > div:last-child { border-right: none; }
.compare__head .is-us { color: var(--indigo); background: white; }
.compare__row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 0.8fr;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.compare__row:last-child { border-bottom: none; }
.compare__row > div {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
  display: flex;
  align-items: center;
}
.compare__row > div:last-child { border-right: none; }
.compare__param { color: var(--ink); font-weight: 500; }
.compare__old { font-family: var(--mono); color: var(--ink-2); font-size: 14px; }
.compare__new { font-family: var(--mono); color: var(--ink); font-weight: 600; background: var(--indigo-soft); font-size: 14px; }
.compare__delta {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--indigo);
  letter-spacing: -0.01em;
}
.compare__delta.is-positive { color: var(--green); }

/* CASE STUDY */
.case-head { max-width: 720px; margin-bottom: 44px; }
.case-head .label-meta { display: block; margin-bottom: 14px; }
.case-head h2 {
  font-size: clamp(32px, 3.4vw, 48px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.case-head p {
  font-size: 17px;
  color: var(--ink-2);
  line-height: 1.55;
  margin-top: 16px;
  max-width: 620px;
}
.case {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.case__gallery { display: flex; flex-direction: column; gap: 12px; }
.case__main {
  background: var(--bg-dark);
  border-radius: 4px;
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  color: white;
}
.case__main::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}
.case__main-image { position: absolute; inset: 0; object-fit: cover; z-index: 1; }
.case__main-label {
  position: absolute;
  top: 24px; left: 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
}
.case__main-tag {
  position: absolute;
  top: 24px; right: 24px;
  padding: 7px 11px;
  background: white;
  color: var(--bg-dark);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
}
.case__main-counter {
  position: absolute;
  bottom: 24px; right: 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.08em;
  z-index: 2;
}
.case__main-counter b { color: white; font-weight: 600; }
.case__main-foot {
  position: absolute;
  bottom: 24px; left: 24px;
  z-index: 2;
  font-family: var(--mono);
  color: rgba(255,255,255,0.7);
  font-size: 12px;
}
.case__main-foot b { color: white; font-weight: 600; font-size: 13px; display: block; }
.case__main-figure {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.case__thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.case__thumb {
  aspect-ratio: 4/3;
  background: var(--bg-dark);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.18s;
}
.case__thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 14px 14px;
}
.case__thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.case__thumb.is-active { border-color: var(--indigo); }
.case__thumb-label {
  position: absolute;
  bottom: 8px; left: 10px; right: 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.04em;
  z-index: 2;
  line-height: 1.2;
}
.case__thumb-num {
  position: absolute;
  top: 8px; left: 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  z-index: 2;
}

.case__specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-bottom: 36px;
  border: 1px solid var(--line);
}
.case__spec {
  padding: 18px 20px;
  border-right: 1px solid var(--line);
  background: var(--bg-card);
}
.case__spec:last-child { border-right: none; }
.case__spec small {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.case__spec b {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.case__compare { border: 1px solid var(--line); background: var(--bg-card); }
.case__compare-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  padding: 15px 20px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 14px;
  align-items: center;
}
.case__compare-row:last-child { border-bottom: none; }
.case__compare-row.is-head {
  background: var(--bg);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.case__compare-row.is-total {
  background: var(--ink);
  color: white;
  padding: 18px 20px;
}
.case__compare-row.is-total .lbl { color: rgba(255,255,255,0.78); }
.case__compare-row.is-total .old { color: #B8BCC2; }
.case__compare-row > .lbl { color: var(--ink-2); font-family: var(--sans); font-size: 15px; }
.case__compare-row.is-head > .lbl { font-family: var(--mono); }
.case__compare-row .old { color: var(--ink-2); }
.case__compare-row .new { color: var(--indigo); font-weight: 600; }
.case__compare-row.is-total .new { color: #FFFFFF; font-size: 16px; font-weight: 600; }
.case__economy {
  display: flex;
  gap: 32px;
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  align-items: baseline;
  flex-wrap: wrap;
}
.case__economy-big {
  font-family: var(--mono);
  font-size: 42px;
  font-weight: 600;
  color: var(--indigo);
  letter-spacing: -0.025em;
  line-height: 1;
  margin-top: 4px;
}

/* APPS */
.apps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.app {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 28px 24px 32px;
  border-radius: 4px;
  transition: all 0.2s;
}
.app:hover { border-color: var(--indigo); transform: translateY(-2px); }
.app__num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-bottom: 22px;
}
.app__icon { color: var(--indigo); margin-bottom: 20px; height: 44px; display: flex; align-items: flex-end; }
.app h4 { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; }
.app p { font-size: 14px; color: var(--ink-2); line-height: 1.5; }

/* PATENT */
.patent {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 56px;
  align-items: center;
}
.patent__doc {
  border: 1px solid var(--line);
  background: var(--bg-card);
  padding: 36px 32px;
  position: relative;
}
.patent__doc-corner {
  display: none;
}
.patent__doc-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.patent__doc-head-left { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; }
.patent__doc-head-left b { display: block; color: var(--ink); font-size: 15px; margin-top: 6px; }
.patent__doc-seal {
  width: 60px; height: 60px;
  border: 1.5px solid var(--indigo);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  color: var(--indigo);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.1;
  flex-shrink: 0;
}
.patent__doc-title { font-size: 18px; font-weight: 600; line-height: 1.35; margin-bottom: 22px; }
.patent__doc-author { display: flex; align-items: center; gap: 14px; padding-top: 18px; border-top: 1px solid var(--line); }
.patent__doc-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--ink);
  flex-shrink: 0;
  display: block;
  position: relative;
}
.patent__doc-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transform: scale(1.5);
  transform-origin: center top;
  display: block;
}
.patent__doc-author-text small { display: block; font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 3px; }
.patent__doc-author-text b { font-size: 15px; font-weight: 600; }

.patent__text h3 {
  font-size: 36px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.patent__text p { font-size: 16px; color: var(--ink-2); line-height: 1.6; margin-bottom: 16px; }
.patent__points { display: flex; flex-direction: column; gap: 8px; margin-top: 24px; }
.patent__point {
  display: flex;
  gap: 12px;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}
.patent__point span {
  flex-shrink: 0;
  width: 6px; height: 6px;
  background: var(--indigo);
  margin-top: 7px;
}

/* FINAL CTA */
.final-cta {
  background: var(--bg-dark);
  color: white;
  padding: 96px 0;
  text-align: center;
}
.final-cta__stamps { display: flex; justify-content: center; gap: 10px; margin-bottom: 32px; }
.final-cta__stamps .stamp { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.15); color: rgba(255,255,255,0.7); }
.final-cta__stamps .stamp i { background: #FFFFFF; }
.final-cta h2 {
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-bottom: 24px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.final-cta h2 em { font-style: normal; color: #FFFFFF; }
.final-cta p {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 44px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.final-cta__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.final-cta .btn--primary { background: var(--indigo); color: white; }
.final-cta .btn--primary:hover { background: white; color: var(--ink); }
.final-cta .btn--ghost { color: white; border-color: rgba(255,255,255,0.25); }
.final-cta .btn--ghost:hover { border-color: white; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ПАРТНЁРАМ — BENEFITS, MODEL, ECONOMY, FAQ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.benefits {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  background: var(--bg-card);
}
.benefit {
  padding: 36px 30px 40px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}
.benefit:last-child { border-right: none; }
.benefit__num { font-family: var(--mono); font-size: 12px; color: var(--ink-3); letter-spacing: 0.08em; margin-bottom: 32px; }
.benefit__big {
  font-family: var(--mono);
  font-size: 52px;
  line-height: 0.95;
  font-weight: 500;
  color: var(--indigo);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.benefit h3 { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 10px; }
.benefit p { font-size: 14px; color: var(--ink-2); line-height: 1.55; margin-top: auto; }

.model { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.model__left h2 {
  font-size: clamp(32px, 3.4vw, 44px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.model__left p { font-size: 16px; color: var(--ink-2); line-height: 1.6; margin-bottom: 16px; }
.model__formula {
  background: var(--bg-dark);
  color: white;
  padding: 32px;
  border-radius: 4px;
  margin-top: 32px;
}
.model__formula-label {
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.model__formula-text {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 500;
  color: white;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.model__formula-text span { color: rgba(255,255,255,0.55); }
.model__formula-sub { margin-top: 18px; font-size: 14px; color: rgba(255,255,255,0.65); line-height: 1.5; }

.model__steps { display: flex; flex-direction: column; gap: 12px; }
.step {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: start;
}
.step__num {
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 500;
  color: var(--indigo);
  letter-spacing: -0.02em;
  line-height: 1;
  min-width: 48px;
}
.step__body h4 { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 6px; }
.step__body p { font-size: 14px; color: var(--ink-2); line-height: 1.55; }
.step__tag {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
}

.economy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  background: var(--bg-card);
}
.economy__col { padding: 40px 36px; border-right: 1px solid var(--line); }
.economy__col:last-child { border-right: none; }
.economy__col-head {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.economy__col.is-us .economy__col-head { color: var(--indigo); }
.economy__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.economy__row:last-child { border-bottom: none; }
.economy__row .lbl { color: var(--ink-2); }
.economy__row .val { font-family: var(--mono); font-weight: 600; color: var(--ink); }
.economy__col.is-us .economy__row .val { color: var(--indigo); }
.economy__total { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-direction: column; }
.economy__total small {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.economy__total b {
  font-family: var(--mono);
  font-size: 36px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}
.economy__col.is-us .economy__total b { color: var(--indigo); }
.economy__summary {
  margin-top: 32px;
  padding: 28px 36px;
  background: var(--bg-dark);
  color: white;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.economy__summary-label {
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.economy__summary-big {
  font-family: var(--mono);
  font-size: 42px;
  font-weight: 600;
  color: white;
  letter-spacing: -0.025em;
  line-height: 1;
}
.economy__summary-text {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
  max-width: 380px;
}

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); padding: 28px 0; cursor: pointer; }
.faq__item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  cursor: pointer;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__q { font-size: 18px; font-weight: 500; letter-spacing: -0.01em; color: var(--ink); flex: 1; }
.faq__plus {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--indigo);
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 400;
  transition: all 0.2s;
}
.faq__item[open] .faq__plus {
  background: var(--indigo);
  color: white;
  border-color: var(--indigo);
  transform: rotate(45deg);
}
.faq__a {
  margin-top: 18px;
  padding-right: 64px;
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.6;
}
.faq__a p { margin-bottom: 10px; }
.faq__a p:last-child { margin-bottom: 0; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   КОНТАКТЫ — CONTACT-BLOCK, PERSON, MAP
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.contacts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contacts-left { display: flex; flex-direction: column; gap: 28px; }

.contact-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 28px 32px;
}
.contact-block__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}
.contact-block__title {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contact-block__tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--indigo);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.contact-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 12px 0;
  align-items: baseline;
  border-bottom: 1px dashed var(--line);
}
.contact-row:last-child { border-bottom: none; }
.contact-row__lbl {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.contact-row__val { font-size: 15px; color: var(--ink); line-height: 1.45; }
.contact-row__val.mono { font-family: var(--mono); }
.contact-row__val.is-link { color: var(--indigo); transition: opacity 0.15s; }
.contact-row__val.is-link:hover { opacity: 0.7; }
.contact-row__val small { display: block; font-size: 13px; color: var(--ink-3); margin-top: 4px; }

.person {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg-card);
}
.person__ava {
  width: 56px; height: 56px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--ink);
  flex-shrink: 0;
  display: block;
  position: relative;
}
.person__ava img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transform: scale(1.5);
  transform-origin: center top;
  display: block;
}
.person__info { flex: 1; }
.person__info small {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.person__info b { display: block; font-size: 16px; font-weight: 600; margin-bottom: 2px; }
.person__info span { font-size: 13px; color: var(--ink-2); }

.map-block {
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-card);
}
.map-block__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  gap: 12px;
}
.map-block__head-left { display: flex; flex-direction: column; gap: 4px; }
.map-block__head-left small {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.map-block__head-left b { font-size: 15px; font-weight: 500; }
.map-block__coords {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.map-placeholder {
  aspect-ratio: 4/3;
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}
.map-placeholder iframe { width: 100%; height: 100%; border: 0; display: block; }
.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}
.map-placeholder.has-map::before { display: none; }
.map-placeholder__pin {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -100%);
  z-index: 2;
}
.map-placeholder__pin-dot {
  width: 14px; height: 14px;
  background: var(--indigo);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 0 0 2px var(--indigo);
  margin: 0 auto;
}
.map-placeholder__pin-line { width: 1px; height: 30px; background: var(--indigo); margin: 4px auto 0; }
.map-placeholder__pin-label {
  position: absolute;
  top: -56px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  background: white;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 2px;
  white-space: nowrap;
}
.map-placeholder__note {
  position: absolute;
  bottom: 18px; left: 24px;
  font-family: var(--mono);
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 2;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ФОРМЫ И БЛОК С ФОРМОЙ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.form-block { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.form-block__left h2 {
  font-size: clamp(32px, 3.4vw, 44px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.form-block__left h2 em { font-style: normal; color: var(--indigo); }
.form-block__left p { font-size: 16px; color: var(--ink-2); line-height: 1.6; margin-bottom: 24px; }
.form-block__list { display: flex; flex-direction: column; gap: 12px; padding-top: 24px; border-top: 1px solid var(--line); }
.form-block__list-item { display: flex; gap: 12px; font-size: 14px; color: var(--ink-2); line-height: 1.5; }
.form-block__list-item span { flex-shrink: 0; width: 6px; height: 6px; background: var(--indigo); margin-top: 7px; }
.form-block__direct {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.form-block__direct a { color: var(--indigo); }

/* Контейнер для CF7-формы */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: 36px;
  border-radius: 4px;
}

/* Базовые стили для CF7-полей. CF7 рендерит обёртку <span class="wpcf7-form-control-wrap">  */
.form-card .wpcf7 { font-family: var(--sans); }
.form-card .wpcf7-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-card .wpcf7-form > p { grid-column: 1 / -1; margin: 0; }
.form-card .form__row { display: contents; }
.form-card .form__field { display: flex; flex-direction: column; margin: 0; }
.form-card .form__field--full,
.form-card .form__field.is-full { grid-column: 1 / -1; }
.form-card .form__field > label,
.form-card .form__label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="tel"],
.form-card input[type="url"],
.form-card input[type="number"],
.form-card select,
.form-card textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.15s;
}
.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
  outline: none;
  border-color: var(--indigo);
}
.form-card textarea { resize: vertical; min-height: 110px; }
.form-card .form__checkbox,
.form-card .wpcf7-acceptance {
  grid-column: 1 / -1;
  display: block;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
  margin: 4px 0;
}
.form-card .wpcf7-list-item { margin: 0; display: flex; gap: 12px; align-items: flex-start; }
.form-card .wpcf7-list-item input[type="checkbox"] { margin-top: 4px; }
.form-card .wpcf7-submit,
.form-card input[type="submit"],
.form-card .form__submit {
  grid-column: 1 / -1;
  width: 100%;
  padding: 16px;
  background: var(--ink);
  color: white;
  border: none;
  border-radius: 2px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s;
  margin-top: 8px;
}
.form-card .wpcf7-submit:hover,
.form-card input[type="submit"]:hover,
.form-card .form__submit:hover { background: var(--indigo); }

/* CF7 validation messages */
.form-card .wpcf7-not-valid-tip {
  color: #B91C1C;
  font-size: 12px;
  margin-top: 6px;
  font-family: var(--mono);
}
.form-card .wpcf7-response-output {
  grid-column: 1 / -1;
  margin: 16px 0 0;
  padding: 14px 18px;
  border-radius: 2px;
  font-size: 14px;
  border: 1px solid var(--line);
  background: var(--bg);
}
.form-card .wpcf7-form.sent .wpcf7-response-output {
  background: #E8F5E9;
  border-color: #4CAF50;
  color: #1B5E20;
}
.form-card .wpcf7-form.invalid .wpcf7-response-output,
.form-card .wpcf7-form.failed .wpcf7-response-output {
  background: #FFEBEE;
  border-color: #E57373;
  color: #B71C1C;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ПОПАП С ФОРМОЙ ЗАЯВКИ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 20, 25, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.popup-overlay.is-open { display: flex; }
.popup {
  background: var(--bg-card);
  border-radius: 4px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  border: 1px solid var(--line);
}
.popup__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--ink-2);
  transition: all 0.15s;
}
.popup__close:hover { background: var(--ink); color: white; border-color: var(--ink); }
.popup__title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}
.popup__sub {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   БУРГЕР И МОБИЛЬНОЕ МЕНЮ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* Кнопка-бургер: скрыта на десктопе, показывается на том же брейкпоинте,
   где прячется .main-nav (см. @media max-width:760px ниже). */
.nav-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  margin-right: -10px;
  background: transparent;
  border: none;
  padding: 0;
  color: var(--ink);
}
.nav-burger__box {
  position: relative;
  display: block;
  width: 24px;
  height: 16px;
}
.nav-burger__line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.12s ease, opacity 0.1s ease, top 0.12s ease;
}
.nav-burger__line:nth-child(1) { top: 0; }
.nav-burger__line:nth-child(2) { top: 7px; }
.nav-burger__line:nth-child(3) { top: 14px; }
/* Анимация в крестик */
.nav-burger.is-open .nav-burger__line:nth-child(1) { top: 7px; transform: rotate(45deg); }
.nav-burger.is-open .nav-burger__line:nth-child(2) { opacity: 0; }
.nav-burger.is-open .nav-burger__line:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* Панель меню выезжает из-под шапки. .mobile-nav — оверлей-область (top:100%
   относительно sticky-шапки), .mobile-nav__panel — сама светлая панель. */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 100vh;
  background: rgba(15, 20, 25, 0.35);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.12s ease, visibility 0.12s ease;
}
.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
}
.mobile-nav__panel {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 18px 40px -24px rgba(15, 20, 25, 0.4);
  padding: 8px var(--pad-x) 20px;
  transform: translateY(-12px);
  transition: transform 0.12s ease;
}
.mobile-nav.is-open .mobile-nav__panel { transform: translateY(0); }

.mobile-nav ul { list-style: none; margin: 0; padding: 0; }
.mobile-nav a {
  display: block;
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.15s;
}
.mobile-nav a:hover { color: var(--indigo); }
.mobile-nav .current-menu-item > a,
.mobile-nav .current_page_item > a,
.mobile-nav a.is-active { color: var(--indigo); }

.mobile-nav__foot {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 22px;
}
.mobile-nav__phone {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink);
}
.mobile-nav__cta { width: 100%; }

/* Блокировка прокрутки фона при открытом меню */
body.nav-open { overflow: hidden; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   404 / СТАТИЧНАЯ СТРАНИЦА / БЛОГ / SINGLE
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.page-content {
  padding: 56px 0 96px;
  max-width: 760px;
  margin: 0 auto;
}
.page-content h2 { font-size: 28px; margin: 32px 0 14px; font-weight: 600; letter-spacing: -0.015em; }
.page-content h3 { font-size: 22px; margin: 28px 0 12px; font-weight: 600; letter-spacing: -0.01em; }
.page-content p { margin-bottom: 16px; font-size: 16px; line-height: 1.6; color: var(--ink-2); }
.page-content ul, .page-content ol { margin: 0 0 16px 24px; font-size: 16px; color: var(--ink-2); }
.page-content li { margin-bottom: 6px; line-height: 1.55; }
.page-content a { color: var(--indigo); text-decoration: underline; text-underline-offset: 3px; }

.posts-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: all 0.18s;
  display: flex;
  flex-direction: column;
}
.post-card:hover { border-color: var(--indigo); transform: translateY(-2px); }
.post-card__thumb {
  aspect-ratio: 16/10;
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}
.post-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-card__body { padding: 24px 24px 28px; flex: 1; display: flex; flex-direction: column; }
.post-card__meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.post-card__title { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.3; margin-bottom: 12px; }
.post-card__excerpt { font-size: 14px; color: var(--ink-2); line-height: 1.55; margin-bottom: 18px; flex: 1; }
.post-card__more { font-family: var(--mono); font-size: 12px; color: var(--indigo); letter-spacing: 0.04em; text-transform: uppercase; }

.post-article {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 0 96px;
}
.post-article__meta {
  display: flex;
  gap: 18px;
  align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.post-article h1 {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.post-article__thumb { aspect-ratio: 16/9; background: var(--bg-dark); margin-bottom: 36px; border-radius: 4px; overflow: hidden; }
.post-article__thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-article__content p { margin-bottom: 16px; font-size: 16px; line-height: 1.65; color: var(--ink-2); }
.post-article__content h2 { font-size: 24px; margin: 36px 0 14px; font-weight: 600; letter-spacing: -0.015em; color: var(--ink); }
.post-article__content h3 { font-size: 20px; margin: 28px 0 10px; font-weight: 600; }
.post-article__content ul, .post-article__content ol { margin: 0 0 16px 24px; font-size: 16px; color: var(--ink-2); }
.post-article__content blockquote {
  border-left: 3px solid var(--indigo);
  padding: 4px 0 4px 24px;
  margin: 24px 0;
  font-size: 18px;
  font-style: italic;
  color: var(--ink-2);
}

.error-404 { text-align: center; padding: 96px 0; }
.error-404__num {
  font-family: var(--mono);
  font-size: clamp(80px, 14vw, 180px);
  font-weight: 500;
  color: var(--indigo);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 24px;
}
.error-404 h1 { font-size: clamp(24px, 3vw, 36px); font-weight: 600; margin-bottom: 16px; letter-spacing: -0.015em; }
.error-404 p { font-size: 16px; color: var(--ink-2); margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto; }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   АДАПТИВ
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (max-width: 1100px) {
  .hero__grid { grid-template-columns: 1fr; gap: 48px; }
  /* при одноколоночной раскладке hero__right теряет высоту, и flex:1 схлопывает
     фото узла до нуля — задаём диаграмме явную высоту, чтобы фото было видно */
  .hero__diagram { flex: none; min-height: 320px; }
  .tech-intro { grid-template-columns: 1fr; gap: 24px; }
  .compare__head, .compare__row { grid-template-columns: 1.4fr 1fr 1fr 0.7fr; font-size: 13px; }
  .case { grid-template-columns: 1fr; gap: 36px; }
  .case__specs { grid-template-columns: repeat(2, 1fr); }
  .apps { grid-template-columns: repeat(2, 1fr); }
  .patent { grid-template-columns: 1fr; gap: 36px; }

  .benefits { grid-template-columns: repeat(2, 1fr); }
  .benefit:nth-child(2n) { border-right: none; }
  .benefit:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .model { grid-template-columns: 1fr; gap: 36px; }
  .economy { grid-template-columns: 1fr; }
  .economy__col { border-right: none; border-bottom: 1px solid var(--line); }
  .economy__col:last-child { border-bottom: none; }

  .contacts-grid { grid-template-columns: 1fr; gap: 36px; }
  .form-block { grid-template-columns: 1fr; gap: 36px; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .posts-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .topbar__left span:not(:first-child),
  .topbar__right span:not(:first-child) { display: none; }
  .main-nav { display: none; }
  .phone { display: none; }
  /* CTA «Заявка» в шапке прячем — он есть в мобильном меню; дубль толкал бургер */
  .site-header__cta .btn { display: none; }
  .site-header__cta { gap: 0; }
  /* Бургер и мобильное меню появляются ровно там, где скрылась .main-nav */
  .nav-burger { display: inline-flex; }
  .mobile-nav { display: block; }
  .site-header__inner { height: 64px; gap: 16px; }
  .kpi__grid { grid-template-columns: repeat(2, 1fr); }
  .kpi__item { border-right: 1px solid rgba(255,255,255,0.08); border-bottom: 1px solid rgba(255,255,255,0.08); }
  .kpi__item:nth-child(2) { border-right: none; }
  .kpi__item:nth-last-child(-n+2) { border-bottom: none; }
  .kpi__num { font-size: 48px; }
  .tech-grid { grid-template-columns: 1fr; }
  /* Компактнее по вертикали, но иконки заметно крупнее — меньше воздуха, в экран влезает больше */
  .tech-card { padding: 22px 22px 24px; border-right: none; border-bottom: 1px solid var(--line); }
  .tech-card:last-child { border-bottom: none; }
  .tech-card__num { margin-bottom: 14px; }
  .tech-card__icon { height: 76px; margin-bottom: 10px; }
  .tech-card__icon svg { width: 76px; height: 76px; }
  .tech-card h3 { margin-bottom: 10px; }
  .tech-card__feature { margin-top: 16px; padding-top: 16px; }
  .compare { overflow: hidden; }
  .compare__head, .compare__row { grid-template-columns: 1.3fr 1fr 1fr; }
  .compare__head > div, .compare__row > div {
    padding: 12px 10px;
    white-space: normal;
    word-break: break-word;
  }
  .compare__head > div { font-size: 11px; }
  .compare__row { font-size: 13px; }
  .compare__old, .compare__new { font-size: 12px; }
  .compare__head > div:last-child, .compare__row > div:last-child { display: none; }
  .case__specs { grid-template-columns: 1fr 1fr; }
  .case__compare-row { grid-template-columns: 1.3fr 0.9fr 0.9fr; font-size: 12px; }
  .apps { grid-template-columns: 1fr 1fr; gap: 12px; }
  /* min-width:0 не даёт длинному слову раздуть колонку и сместить сетку —
     левый/правый отступ карточек остаётся симметричным и равным полям контейнера */
  .app { min-width: 0; }

  .benefits { grid-template-columns: 1fr; }
  .benefit { border-right: none; border-bottom: 1px solid var(--line); }
  .benefit:last-child { border-bottom: none; }

  .contact-row { grid-template-columns: 1fr; gap: 4px; }

  .form-card .wpcf7-form { grid-template-columns: 1fr; }

  .site-footer__grid { grid-template-columns: 1fr; gap: 36px; }
  .section__body { padding: 48px 0 64px; }
  .hero { padding: 48px 0 64px; }
  .posts-list { grid-template-columns: 1fr; }
}