/**
 * TVK PLASTIC — v4.2 · full-width · tvk-tokens
 */

@import url("tvk-tokens.css");
@import url("tvk-a11y.css");
@import url("tvk-utilities.css");
@import url("tvk-will-change.css");
@import url("tvk-motion-system.css");
@import url("tvk-conversion-ux.css");
@import url("tvk-list-icons.css?v=1.0");
@import url("tvk-perceived-speed.css");
@import url("tvk-trust-bar.css");
@import url("tvk-sys-ticker.css?v=1.2");
@import url("tvk-sticky-cta.css");
@import url("tvk-polish-details.css");
@import url("tvk-layout-fix.css?v=1.1");
@import url("tvk-flow-layout.css?v=1.6");
@import url("tvk-form-interact.css?v=1.5.1");

/* Лейаут-переменные (не дублируют tvk-tokens) */
:root {
  --page-pad: clamp(var(--space-5), 4vw, 72px);
  --header-h: var(--space-16);
  --section-y: clamp(var(--space-12), 6vw, 80px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh;
  font-family: var(--font-body); font-size: 16px; line-height: 1.5;
  color: var(--text-primary); background: var(--bg-base);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: var(--data); text-decoration: none; transition: color var(--transition); }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol, h1, h2, h3, h4, h5, h6, p { margin: 0; padding: 0; }
.hidden { display: none; }

/* 2. TYPOGRAPHY — Yandex-like clean grotesk */
h1, h2, h3, h4 {
  font-family: var(--font-display); font-weight: 700;
  letter-spacing: -0.025em; line-height: 1.12; color: var(--text-primary);
}
h1 { font-size: clamp(2rem, 4.5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.0625rem, 1.8vw, 1.25rem); font-weight: 600; }
.stat-accent, .text-mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.text-data, .stat-accent { color: var(--data); }

/* 3. LAYOUT — full width */
.container {
  width: 100%; max-width: none;
  margin-inline: 0; padding-inline: var(--page-pad);
}
main > section { padding-block: var(--section-y); }
.section-heading { margin-bottom: clamp(24px, 3vw, 40px); }
.section-heading h2 { max-width: none; margin-bottom: 10px; }
.section-intro {
  max-width: 72ch; font-size: 1.0625rem; line-height: 1.6; color: var(--text-secondary);
}
.eyebrow {
  display: inline-block; margin-bottom: 10px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-muted);
}

/* Reveal: base — motion.css adds animation */
.reveal { opacity: 1; }

/* 4. COMPONENTS */
.btn, .button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border: 1px solid transparent; border-radius: var(--radius-md);
  font-family: var(--font-body); font-weight: 600; font-size: 0.9375rem;
  line-height: 1.2; text-decoration: none; cursor: pointer; white-space: nowrap;
}
.btn-accent, .button-accent {
  background: var(--accent); color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-accent:hover:not(.btn-download), .button-accent:hover:not(.btn-download) {
  background: #ef5350;
}

/* Кнопка «Комплектующие» под фото трубы — на всех страницах */
.product-gpi-accessories-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  box-sizing: border-box;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  box-shadow: 0 4px 16px var(--accent-glow);
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}
.product-gpi-accessories-btn:hover {
  background: var(--accent);
  color: #0a0c10;
  border-color: var(--accent);
  box-shadow: 0 6px 20px var(--accent-glow);
}

/* Кнопки «Скачать» — жирные, прямоугольные, обводка цвета кнопки */
.document-card .button.button-dark,
.document-card .button.button-accent,
a.button.button-dark[href*=".pdf"],
a.button.button-dark[href*="СкачатьДокументы"],
a.button.button-dark[href*="download.html"],
a.button.button-accent[href*=".pdf"],
.btn-download {
  border-radius: 0 !important;
  font-weight: 800 !important;
  letter-spacing: 0.02em;
  padding: 11px 18px !important;
  border-width: 2px !important;
  border-style: solid !important;
  box-shadow: none !important;
  transform: none !important;
}

.document-card .button.button-dark,
a.button.button-dark[href*=".pdf"],
a.button.button-dark[href*="СкачатьДокументы"],
a.button.button-dark[href*="download.html"],
.btn-download.btn-download--dark {
  background: transparent !important;
  color: var(--accent) !important;
  border-color: var(--accent) !important;
}

.document-card .button.button-dark:hover,
a.button.button-dark[href*=".pdf"]:hover,
a.button.button-dark[href*="СкачатьДокументы"]:hover,
a.button.button-dark[href*="download.html"]:hover,
.btn-download.btn-download--dark:hover {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
}

.document-card .button.button-accent,
a.button.button-accent[href*=".pdf"],
.btn-download.btn-download--accent {
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
}

.document-card .button.button-accent:hover,
a.button.button-accent[href*=".pdf"]:hover,
.btn-download.btn-download--accent:hover {
  background: var(--accent) !important;
  color: #0a0c10 !important;
  border-color: var(--accent) !important;
}

.btn-outline, .button-outline-light {
  background: var(--bg-elevated); color: var(--text-primary); border-color: var(--bg-border);
}
.btn-outline:hover, .button-outline-light:hover { background: var(--bg-hover); border-color: var(--text-muted); }
.btn-lg, .button-mega { padding: 14px 28px; font-size: 1rem; border-radius: var(--radius-md); }

.form, .lead-form { display: flex; flex-direction: column; gap: 14px; }
.form input, .form select, .form textarea,
.lead-form input, .lead-form select, .lead-form textarea, .form-select {
  width: 100%; padding: 14px 16px; border: 1px solid var(--bg-border);
  border-radius: var(--radius-md); background: var(--bg-base); color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form input:focus, .form select:focus, .form textarea:focus,
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form textarea, .lead-form textarea { min-height: 88px; resize: vertical; }
.checkbox {
  display: grid; grid-template-columns: 18px 1fr; gap: 10px;
  align-items: start; width: 100%; cursor: pointer;
  font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.45;
}
.checkbox input { width: 16px; height: 16px; margin: 2px 0 0; accent-color: var(--accent); }
.checkbox span { min-width: 0; word-break: break-word; }
.checkbox a { color: var(--data); text-decoration: underline; text-underline-offset: 2px; }
.form-privacy-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 12px 0 0;
  padding-top: 14px;
  text-align: center;
  border-top: 1px solid var(--bg-border);
}
.form-sub, .form-note { font-size: 0.875rem; color: var(--text-secondary); }
.form-trust { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.8125rem; color: var(--text-muted); }

.chip, .catalog-tag {
  display: inline-flex; padding: 4px 10px; border-radius: 6px;
  font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.02em;
  text-transform: uppercase; color: var(--text-secondary);
  background: var(--bg-elevated); border: 1px solid var(--bg-border);
}

/* 5. HEADER — Yandex bar */
.site-header {
  position: sticky; top: 0; z-index: 300;
  background: rgba(8, 11, 16, 0.92); border-bottom: 1px solid var(--bg-border);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; min-height: var(--header-h);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text-primary); flex-shrink: 0; }
.brand-mark {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}
.brand-mark--img {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 10px;
}
.brand-mark--img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.brand-copy strong { font-size: 0.9375rem; font-weight: 700; letter-spacing: -0.01em; }
.menu-toggle {
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px; border: none; border-radius: var(--radius-md);
  background: var(--bg-elevated); cursor: pointer;
}
.menu-toggle span { display: block; height: 2px; background: var(--text-primary); border-radius: 1px; }
.site-nav { display: none; }
.site-nav a {
  color: var(--text-secondary); text-decoration: none; font-size: 0.9375rem;
  font-weight: 500; padding: 8px 0; transition: color var(--transition);
}
.site-nav a:hover { color: var(--text-primary); }
.header-actions { display: none; align-items: center; gap: 24px; flex-shrink: 0; }
.header-phone-block { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.header-phone {
  font-size: 1rem; font-weight: 700; color: var(--accent);
  text-decoration: none; position: relative; padding-left: 14px; white-space: nowrap;
}
.header-phone::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 7px; height: 7px; border-radius: 50%; background: var(--data);
  animation: pulse-dot 2s ease-in-out infinite;
}
.header-hours { font-size: 0.6875rem; color: var(--text-muted); }
.site-nav.is-open {
  display: flex; flex-direction: column; align-items: stretch;
  position: fixed; inset: 0; z-index: 100002;
  padding: calc(var(--header-h) + 24px) var(--page-pad) 32px;
  background: #080b10;
  animation: tvkMenuIn 0.22s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes tvkMenuIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.site-nav.is-open a {
  padding: 16px 0; font-size: 1.125rem; font-weight: 600;
  border-bottom: 1px solid var(--bg-border); color: var(--text-primary);
  opacity: 0;
  animation: tvkMenuLinkIn 0.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.site-nav.is-open a:nth-child(1) { animation-delay: 0.04s; }
.site-nav.is-open a:nth-child(2) { animation-delay: 0.07s; }
.site-nav.is-open a:nth-child(3) { animation-delay: 0.1s; }
.site-nav.is-open a:nth-child(4) { animation-delay: 0.13s; }
.site-nav.is-open a:nth-child(5) { animation-delay: 0.16s; }
@keyframes tvkMenuLinkIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 900px) {
  body:has(#tvk-menu-overlay) .site-nav.is-open { display: none !important; }
}
body.menu-open { overflow: hidden; }

/* 6. HERO */
.hero-section {
  padding-top: calc(var(--header-h) + 24px);
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);
  border-bottom: 1px solid var(--bg-border);
}
.hero-grid {
  display: grid; gap: clamp(28px, 4vw, 48px);
  align-items: start;
}
.hero-copy {
  display: flex; flex-direction: column; gap: 20px;
  max-width: 780px; min-width: 0; overflow: hidden;
}
.hero-h1 {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  line-height: 1.15; word-break: break-word;
}
.hero-lead { font-size: 1.0625rem; color: var(--text-secondary); line-height: 1.6; max-width: 62ch; }
.hero-chips, .hero-tech-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.tech-chip {
  flex: 1 1 140px; padding: 12px 14px; border-radius: var(--radius-md);
  background: var(--bg-elevated); border: 1px solid var(--bg-border);
  border-left: 3px solid var(--accent);
}
.tech-chip strong {
  display: block; font-family: var(--font-mono); font-size: 0.9375rem;
  color: var(--text-primary); margin-bottom: 2px;
}
.tech-chip span { font-size: 0.6875rem; color: var(--text-muted); text-transform: uppercase; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-phone-block { display: flex; flex-direction: column; gap: 2px; margin-top: 4px; }
.hero-phone { font-size: 1.25rem; font-weight: 700; color: var(--accent); padding-left: 0; }
.hero-phone::before { display: none; }
.hero-phone-meta { font-size: 0.8125rem; color: var(--text-muted); }
.hero-panel {
  padding: clamp(24px, 3vw, 32px); border-radius: var(--radius-xl);
  background: var(--bg-elevated); border: 1px solid var(--bg-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.24);
  position: relative; z-index: 2; min-width: 0;
}
.hero-panel--lab { padding: clamp(20px, 2.5vw, 28px); overflow: hidden; }
.hero-panel h2 { font-size: 1.375rem; margin-bottom: 6px; }
.hero-form__product { display: block; }

/* 7. TICKER */
#ticker, .tvk-marquee-belt {
  position: relative;
  overflow: hidden; border-bottom: 1px solid var(--bg-border);
  background: var(--bg-surface); padding-block: 10px;
}
.ticker-track, .tvk-marquee-track {
  display: flex; align-items: center; gap: 28px; width: max-content;
  animation: marquee 45s linear infinite;
}
.ticker-item, .tvk-marquee-item {
  flex-shrink: 0; font-family: var(--font-mono); font-size: 0.75rem;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); white-space: nowrap;
}
.ticker-item--accent, .tvk-marquee-item--accent { color: var(--accent); font-weight: 600; }
.ticker-item--data, .tvk-marquee-item--red { color: var(--data); }
.marquee-sep { display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--text-muted); }

/* 8. FACTORY */
#factory { background: var(--bg-base); border-bottom: 1px solid var(--bg-border); }
.factory-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(8px, 1vw, 12px);
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--bg-border);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.metric-card {
  min-height: clamp(128px, 14vw, 156px);
  padding: clamp(24px, 3vw, 32px);
  border-radius: 0;
  border: none;
  border-top: 3px solid var(--data);
  background: var(--bg-base);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.metric-card:hover {
  border-top-color: var(--accent);
  background: var(--bg-surface);
}
.metric-card__stat, .factory-power-stat {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0;
  color: var(--text-primary);
  line-height: 1.1;
}
.metric-card__stat .stat-accent,
.metric-card__stat .tvk-count {
  color: var(--data);
  font-variant-numeric: tabular-nums;
}
.metric-card__stat .tvk-count.is-counting {
  color: var(--text-primary);
}
.metric-card__label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: none;
}
.metric-card--lab {
  border-top-color: rgba(0, 201, 167, 0.55);
}
.metric-card--lab .metric-card__stat .stat-accent {
  color: var(--data);
}

/* 9. CATALOG */
#products { background: var(--bg-surface); border-bottom: 1px solid var(--bg-border); }
.catalog-grid { display: grid; gap: 12px; grid-template-columns: 1fr; }
.catalog-card {
  position: relative; display: flex; flex-direction: column;
  border-radius: var(--radius-lg); background: var(--bg-elevated);
  border: 1px solid var(--bg-border); overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.catalog-card:hover { border-color: rgba(229, 57, 53, 0.4); transform: translateY(-2px); }
.catalog-card__idx {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 600; color: var(--text-muted);
}
.catalog-card__media { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--bg-base); }
.catalog-card__media img { width: 100%; height: 100%; object-fit: cover; }
.catalog-tag { position: absolute; top: 12px; left: 12px; z-index: 1; background: rgba(8, 11, 16, 0.85); }
.catalog-card__body { display: flex; flex-direction: column; gap: 10px; padding: 18px 20px 20px; flex: 1; }
.catalog-card__chips { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; }
.catalog-card__chips li {
  padding: 3px 8px; border-radius: 6px; font-family: var(--font-mono);
  font-size: 0.625rem; color: var(--text-mono); background: var(--bg-base); border: 1px solid var(--bg-border);
}
.catalog-card__body p { font-size: 0.875rem; color: var(--text-secondary); flex: 1; line-height: 1.5; }
.catalog-card__actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: stretch;
  margin-top: auto;
}
.catalog-card__btn-kp {
  padding: 11px 16px;
  font-size: 0.8125rem;
  white-space: nowrap;
}
.catalog-card__btn-spec {
  padding: 11px 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
  text-align: center;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  background: var(--bg-base);
  border: 1px solid var(--bg-border);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.catalog-card__btn-spec:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--text-muted);
}
.catalog-card__link { display: none; }
.catalog-cta-row {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
  margin-top: clamp(28px, 3vw, 40px); padding: 20px 24px;
  border-radius: var(--radius-lg); background: var(--bg-base); border: 1px solid var(--bg-border);
}
.catalog-cta-row p { flex: 1; min-width: 220px; color: var(--text-secondary); font-size: 0.9375rem; }

/* 10. WHY-US */
#why-us { background: var(--bg-base); border-bottom: 1px solid var(--bg-border); }
.trust-grid { display: grid; gap: 12px; grid-template-columns: 1fr; }
.trust-card {
  padding: clamp(24px, 3vw, 32px); border-radius: var(--radius-lg);
  background: var(--bg-surface); border: 1px solid var(--bg-border);
}
.trust-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 8px; margin-bottom: 16px;
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 700;
  color: var(--accent); background: var(--accent-dim);
}
.trust-card h3 { margin-bottom: 10px; }
.trust-card p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

/* 11. CALCULATOR */
.engineering-section { background: var(--bg-surface); border-bottom: 1px solid var(--bg-border); }
.product-page .content-stack .engineering-section,
.product-page .engineering-section--embed {
  background: transparent;
  border-bottom: none;
}
.engineering-tools-ribbon {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 18px; margin-bottom: 24px;
  border-radius: var(--radius-md); background: var(--bg-elevated); border: 1px solid var(--bg-border);
}
.engineering-tools-ribbon p { font-size: 0.9375rem; color: var(--text-secondary); }
.ribbon-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.ribbon-chip {
  padding: 8px 14px; border-radius: var(--radius-sm); font-size: 0.8125rem; font-weight: 500;
  color: var(--text-secondary); text-decoration: none;
  background: var(--bg-base); border: 1px solid var(--bg-border);
}
.ribbon-chip:hover { color: var(--text-primary); background: var(--bg-hover); }
.ribbon-chip--primary { color: var(--data); border-color: rgba(0, 201, 167, 0.3); background: var(--data-dim); }
.calc-panel {
  padding: clamp(20px, 3vw, 28px); border-radius: var(--radius-lg);
  background: var(--bg-elevated); border: 1px solid var(--bg-border);
  margin-bottom: clamp(28px, 3vw, 40px);
}
.calc-header {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; margin-bottom: 20px;
}
.calc-title { display: flex; align-items: center; gap: 10px; }
.calc-tabs {
  display: flex; gap: 4px; padding: 4px; border-radius: var(--radius-md);
  background: var(--bg-base); border: 1px solid var(--bg-border);
}
.calc-tab {
  padding: 8px 16px; border: none; border-radius: var(--radius-sm);
  background: transparent; color: var(--text-secondary);
  font-size: 0.8125rem; font-weight: 600; cursor: pointer;
}
.calc-tab.active, .calc-tab[aria-selected="true"] {
  background: var(--bg-elevated); color: var(--text-primary);
}
.calc-fields { display: grid; gap: 14px; margin-bottom: 16px; }
.calc-field { display: flex; flex-direction: column; gap: 6px; }
.calc-field span { font-size: 0.8125rem; color: var(--text-secondary); }
.calc-field input, .calc-field select {
  padding: 12px 14px; border: 1px solid var(--bg-border);
  border-radius: var(--radius-md); background: var(--bg-base); color: var(--text-primary);
}
.calc-input-unit { display: flex; gap: 8px; }
.calc-input-unit input { flex: 1; }
.calc-result-row { display: grid; gap: 10px; }
.calc-result {
  padding: 16px; border-radius: var(--radius-md);
  background: var(--bg-base); border: 1px solid var(--bg-border);
}
.calc-result-label { display: block; font-size: 0.75rem; color: var(--text-muted); margin-bottom: 4px; }
.calc-result-value { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 600; color: var(--data); }
.calc-result-unit { font-size: 0.8125rem; color: var(--text-secondary); margin-left: 4px; }
.calc-gpi-warning {
  padding: 12px 14px; margin-bottom: 14px; border-radius: var(--radius-sm);
  font-size: 0.8125rem; color: #fbbf24;
  background: rgba(251, 191, 36, 0.08); border: 1px solid rgba(251, 191, 36, 0.2);
}
.calc-estimate-btn { margin-top: 16px; width: 100%; }
.izc-section-heading { margin-top: clamp(24px, 3vw, 40px); }
.content-card {
  padding: clamp(16px, 2vw, 24px); border-radius: var(--radius-lg);
  background: var(--bg-elevated); border: 1px solid var(--bg-border);
  margin-top: 24px;
}
.tvk-table-scroll { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--bg-border); }
.tvk-spec-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.tvk-spec-table caption {
  padding: 12px 16px; text-align: left; font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--text-muted); background: var(--bg-base); border-bottom: 1px solid var(--bg-border);
}
.tvk-spec-table th, .tvk-spec-table td {
  padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--bg-border);
}
.tvk-spec-table th {
  font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-muted); background: var(--bg-base);
}
.tvk-spec-table td { color: var(--text-secondary); }
.tvk-spec-table tbody tr:hover td { background: rgba(0, 201, 167, 0.04); color: var(--text-primary); }
.tvk-spec-table__link {
  color: inherit;
  text-decoration: none;
  font-weight: inherit;
  border-radius: 2px;
  transition: color 0.15s ease;
}
.tvk-spec-table__link:hover {
  color: var(--data, #00c9a7);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.tvk-spec-table__link:focus-visible {
  outline: 2px solid var(--data, #00c9a7);
  outline-offset: 2px;
}
.tvk-spec-table tbody tr.is-highlight .tvk-spec-table__link,
.tvk-spec-table tbody tr:hover .tvk-spec-table__link {
  color: var(--data, #00c9a7);
  font-weight: 600;
}
.engineering-notes { display: grid; gap: 12px; margin-top: 24px; }
.engineering-notes article {
  padding: 20px; border-radius: var(--radius-md);
  background: var(--bg-elevated); border: 1px solid var(--bg-border);
}
.engineering-notes h3 { margin-bottom: 8px; font-size: 1rem; }
.engineering-notes p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.55; }

/* Accent volume — factory, trust, chips */
.trust-card {
  min-height: 200px;
  border-left: 4px solid var(--accent);
  padding: clamp(28px, 3.5vw, 36px);
}
.trust-num {
  width: 40px; height: 40px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.875rem;
}
.trust-card h3 { font-size: 1.25rem; }
.tech-chip {
  flex: 1 1 160px; min-height: 72px;
  padding: 14px 16px;
}
.tech-chip strong { font-size: 1.0625rem; }
.catalog-card__body h3 { font-size: 1.125rem; }

/* 12b. TRUST FACTS — Liqium-style large stats */
.trust-facts-section {
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);
  border-top: 1px solid var(--bg-border);
  border-bottom: 1px solid var(--bg-border);
}

.eyebrow--accent-line {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.eyebrow--accent-line::after {
  content: "";
  width: clamp(48px, 8vw, 120px);
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.tvk-liqium-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(28px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--bg-border);
}

.tvk-lstat {
  position: relative;
  min-height: clamp(168px, 18vw, 208px);
  padding: clamp(28px, 4vw, 44px) clamp(20px, 3vw, 28px);
  background: var(--bg-base);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background 0.3s ease;
}

.tvk-lstat::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(229, 57, 53, 0.06), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.tvk-lstat:hover {
  background: var(--bg-surface);
}

.tvk-lstat:hover::after {
  opacity: 1;
}

.tvk-lstat__index {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  opacity: 0.5;
}

.tvk-lstat__value {
  display: block;
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 10px;
  transition: color 0.3s ease;
  font-variant-numeric: tabular-nums;
}

.tvk-lstat__value .tvk-count.is-counting {
  color: var(--text-primary);
}

.tvk-lstat:hover .tvk-lstat__value {
  color: var(--accent);
}

.tvk-lstat__suffix {
  font-size: 0.38em;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
  vertical-align: super;
  margin-left: 2px;
}

.tvk-lstat__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  line-height: 1.4;
}

.tvk-lstat__sub {
  display: block;
  margin-top: auto;
  padding-top: 8px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: none;
}

.tvk-count {
  font-variant-numeric: tabular-nums;
}

/* 13. FAQ */
#faq { background: var(--bg-surface); border-bottom: 1px solid var(--bg-border); }
.faq-list { display: flex; flex-direction: column; gap: 8px; max-width: none; }
.faq-item {
  border: 1px solid var(--bg-border); border-radius: var(--radius-md);
  background: var(--bg-elevated); overflow: hidden;
}
.faq-item__trigger {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 16px 20px; border: none; background: transparent;
  color: var(--text-primary); text-align: left; cursor: pointer;
}
.faq-item__trigger:hover { background: var(--bg-hover); }
.faq-item__idx { flex-shrink: 0; font-family: var(--font-mono); font-size: 0.6875rem; color: var(--text-muted); }
.faq-item__question { flex: 1; font-size: 1rem; font-weight: 600; line-height: 1.35; }
.faq-item__icon { flex-shrink: 0; width: 20px; height: 20px; position: relative; }
.faq-item__icon::before, .faq-item__icon::after {
  content: ""; position: absolute; top: 50%; left: 50%; background: var(--text-secondary);
  transition: opacity var(--transition);
}
.faq-item__icon::before { width: 12px; height: 2px; transform: translate(-50%, -50%); }
.faq-item__icon::after { width: 2px; height: 12px; transform: translate(-50%, -50%); }
.faq-item:not(.is-collapsed) .faq-item__question { color: var(--accent); }
.faq-item:not(.is-collapsed) .faq-item__icon::after { opacity: 0; }
.faq-item.is-collapsed .faq-item__panel { display: none; }
.faq-item__panel-inner { padding: 0 20px 18px 52px; }
.faq-item__panel-inner p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

/* 14. FOOTER */
.site-footer {
  padding-block: clamp(48px, 5vw, 72px);
  background: var(--bg-base); border-top: 1px solid var(--bg-border);
}

#contact:not(.side-card) {
  padding-block: clamp(48px, 5vw, 72px);
  background: var(--bg-base); border-top: 1px solid var(--bg-border);
}
.footer-grid { display: grid; gap: clamp(28px, 4vw, 48px); margin-bottom: clamp(28px, 3vw, 40px); }
.footer-phone {
  display: inline-block; font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800; color: var(--accent); text-decoration: none;
  letter-spacing: -0.02em; margin: 12px 0 8px;
}
.footer-phone.footer-email {
  color: var(--data, #00c9a7);
  word-break: break-word;
  overflow-wrap: anywhere;
  max-width: 100%;
  line-height: 1.2;
}
.footer-phone.footer-email::before {
  background: var(--data, #00c9a7);
}

/* Главная: футер без формы — контакты по центру, крупный текст */
.home-page .site-footer--contacts-only {
  text-align: center;
}

.home-page .site-footer--contacts-only .footer-grid--solo {
  grid-template-columns: 1fr;
  justify-items: center;
  width: 100%;
  margin-bottom: clamp(40px, 5vw, 56px);
}

.home-page .footer-contacts--centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center !important;
  width: 100%;
  max-width: min(52rem, 100%);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
  gap: clamp(16px, 2.8vw, 24px);
}

.home-page .footer-contacts--centered .eyebrow {
  display: inline-block;
  margin: 0;
  font-size: clamp(0.8125rem, 1.6vw, 1rem);
  letter-spacing: 0.1em;
  text-align: center;
}

.home-page .footer-contacts--centered h2 {
  margin: 0 !important;
  width: 100%;
  max-width: 28ch;
  margin-inline: auto !important;
  font-size: clamp(2rem, 5.5vw, 3.5rem) !important;
  font-weight: 800 !important;
  line-height: 1.12 !important;
  letter-spacing: -0.03em;
  text-align: center !important;
  text-wrap: balance;
}

.home-page .footer-email-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: clamp(6px, 1.2vw, 12px) 0;
}

.home-page .footer-contacts--centered .footer-phone.footer-email {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  margin: 0 !important;
  padding: 0 !important;
  font-size: clamp(1.85rem, 5.5vw, 3.25rem) !important;
  font-weight: 800 !important;
  line-height: 1.15 !important;
  text-align: center !important;
}

.home-page .footer-contacts--centered .footer-phone.footer-email::before {
  position: static !important;
  left: auto !important;
  top: auto !important;
  transform: none !important;
  flex: 0 0 0.45em;
  width: 0.45em;
  height: 0.45em;
  margin: 0;
  animation: pulse-dot 2s ease-in-out infinite;
}

.home-page .footer-contacts--centered .contact-list {
  margin: 0 !important;
  padding: 0 !important;
  width: 100%;
  list-style: none;
  font-size: clamp(1.125rem, 2.4vw, 1.375rem) !important;
  line-height: 1.7 !important;
  text-align: center !important;
}

.home-page .footer-contacts--centered .contact-list li {
  padding-block: 8px !important;
  font-size: inherit !important;
  color: var(--text-secondary) !important;
  text-align: center !important;
}

.home-page .footer-contacts--centered .contact-list strong {
  color: var(--text-primary);
  font-weight: 700;
}

.home-page .footer-contacts--centered .footer-note {
  margin: clamp(10px, 2vw, 16px) 0 0 !important;
  max-width: 46ch;
  margin-inline: auto !important;
  font-size: clamp(1.0625rem, 2.2vw, 1.3125rem) !important;
  line-height: 1.65 !important;
  text-align: center !important;
  color: var(--text-secondary) !important;
}

.contact-list { list-style: none; margin-top: 16px; }
.contact-list li { padding-block: 5px; font-size: 0.9375rem; color: var(--text-secondary); }
.contact-list a { color: var(--text-primary); }
.footer-note { margin-top: 16px; font-size: 0.875rem; color: var(--text-muted); max-width: 48ch; line-height: 1.55; }
.footer-form {
  padding: clamp(24px, 3vw, 32px); border-radius: var(--radius-xl);
  background: var(--bg-surface); border: 1px solid var(--bg-border);
}
.footer-seo-block { padding-block: 24px; border-top: 1px solid var(--bg-border); text-align: center; }
.footer-seo-block p { font-size: 0.8125rem; color: var(--text-muted); margin-top: 12px; }
.footer-brand-logo { margin-inline: auto; opacity: 0.75; }
.footer-credit { padding-block: 16px; text-align: center; font-size: 0.75rem; color: var(--text-muted); }

/* 15. STICKY CTA → css/tvk-sticky-cta.css */

/* 16. TOAST */
.toast {
  position: fixed; bottom: 80px; left: 50%;
  transform: translateX(-50%) translateY(20px); z-index: 400;
  padding: 12px 20px; border-radius: var(--radius-md); font-size: 0.875rem;
  color: var(--text-primary); background: var(--bg-elevated);
  border: 1px solid var(--bg-border); opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }

/* 17. ANIMATIONS */
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
  50% { opacity: 0.45; transform: translateY(-50%) scale(0.9); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .tvk-marquee-track { animation: none; }
  .header-phone::before { animation: none; }
}

/* 18. RESPONSIVE */
@media (max-width: 767px) {
  .hero-form__product { display: none; }
  .menu-toggle { display: flex; }
}

@media (min-width: 768px) {
  .menu-toggle { display: none; }
  .header-inner {
    display: grid; grid-template-columns: auto 1fr auto; align-items: center;
  }
  .site-nav:not(.is-open) {
    display: flex; justify-content: center; gap: 28px;
  }
  .header-actions { display: flex; justify-self: end; }
  .hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(32px, 5vw, 64px);
  }
  .trust-grid { grid-template-columns: repeat(3, 1fr); }
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
  .calc-fields { grid-template-columns: repeat(2, 1fr); }
  .calc-result-row { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; align-items: start; }
  .home-page .footer-grid--solo { grid-template-columns: 1fr; }
  .engineering-notes { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) {
  .factory-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .tvk-liqium-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .factory-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .factory-grid .metric-card:nth-child(-n+4) {
    grid-column: span 3;
  }
  .factory-grid .metric-card:nth-child(5) {
    grid-column: 1 / span 4;
    grid-row: 2;
  }
  .factory-grid .metric-card:nth-child(6) {
    grid-column: 5 / span 4;
    grid-row: 2;
  }
  .factory-grid .metric-card:nth-child(7) {
    grid-column: 9 / span 4;
    grid-row: 2;
  }
  .tvk-liqium-stats { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (min-width: 1200px) {
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Анкета: заголовок и подпись — всегда по центру (перекрывает styles.css / style_3) */
form.lead-form .lead-form__title,
.lead-form .lead-form__title,
.side-card .lead-form .lead-form__title,
#contact .lead-form .lead-form__title,
.site-footer .footer-form .lead-form__title {
  text-align: center !important;
  width: 100% !important;
  text-transform: none !important;
}

form.lead-form > .form-note,
.lead-form > .form-note:first-of-type,
.side-card .lead-form > .form-note:first-of-type,
#contact .lead-form > .form-note:first-of-type {
  text-align: center !important;
  width: 100% !important;
}