/* АэроСтоп — индустриальный каталог антидроновой сетки */
/* Шрифты подключаются в <head> страниц (без @import — меньше FOUC) */

:root {
  --bg: #0f141c;
  --bg-elevated: #1a2332;
  --bg-soft: #e8eef5;
  --bg-page: #f4f6f9;
  --surface: #ffffff;
  --text: #1a2332;
  --text-muted: #5a6577;
  --text-on-dark: #e8eef5;
  --accent: #f05a28;
  --accent-hover: #d94818;
  --accent-soft: rgba(240, 90, 40, 0.12);
  --line: #d4dbe6;
  --ok: #1f8a5b;
  --err: #c0392b;
  --radius: 2px;
  --shadow: 0 12px 40px rgba(15, 20, 28, 0.12);
  /* Bootstrap-совместимый контейнер (xl = 1140px) */
  --container: 1140px;
  --gutter-x: 1.5rem;
  --header-h: 72px;
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.02em;
}
p { margin: 0 0 1em; }
/* Контейнер и сетка 12 колонок (как Bootstrap 5) */
.container {
  width: 100%;
  max-width: var(--container);
  margin-right: auto;
  margin-left: auto;
  padding-right: calc(var(--gutter-x) * 0.5);
  padding-left: calc(var(--gutter-x) * 0.5);
}
@media (max-width: 575.98px) {
  .container {
    padding-right: 1rem;
    padding-left: 1rem;
  }
}
@media (min-width: 576px) {
  .container { max-width: 540px; }
}
@media (min-width: 768px) {
  .container { max-width: 720px; }
}
@media (min-width: 992px) {
  .container { max-width: 960px; }
}
@media (min-width: 1200px) {
  .container { max-width: 1140px; }
}
@media (min-width: 1400px) {
  .container { max-width: 1320px; }
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: calc(var(--gutter-x) * -0.5);
  margin-left: calc(var(--gutter-x) * -0.5);
}
.row > * {
  box-sizing: border-box;
  flex-shrink: 0;
  width: 100%;
  max-width: 100%;
  padding-right: calc(var(--gutter-x) * 0.5);
  padding-left: calc(var(--gutter-x) * 0.5);
}

.col-12 { flex: 0 0 auto; width: 100%; }
.col-8 { flex: 0 0 auto; width: 66.66666667%; }
.col-7 { flex: 0 0 auto; width: 58.33333333%; }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-5 { flex: 0 0 auto; width: 41.66666667%; }
.col-4 { flex: 0 0 auto; width: 33.33333333%; }

@media (min-width: 992px) {
  .col-lg-8 { flex: 0 0 auto; width: 66.66666667%; }
  .col-lg-7 { flex: 0 0 auto; width: 58.33333333%; }
  .col-lg-5 { flex: 0 0 auto; width: 41.66666667%; }
}
@media (min-width: 768px) {
  .col-md-8 { flex: 0 0 auto; width: 66.66666667%; }
}
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(15, 20, 28, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232, 238, 245, 0.08);
}
.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}
.logo img,
.logo__mark {
  height: 40px;
  width: 40px;
  display: block;
  flex-shrink: 0;
}
.logo__text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--text-on-dark);
  white-space: nowrap;
}
.nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav a {
  color: var(--text-on-dark);
  font-size: 0.95rem;
  font-weight: 500;
  opacity: 0.85;
  transition: opacity 0.2s var(--ease), color 0.2s;
}
.nav a:hover, .nav a[aria-current="page"] {
  opacity: 1;
  color: var(--accent);
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.header-phone {
  color: var(--text-on-dark);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(232,238,245,0.25);
  color: var(--text-on-dark);
  width: 44px; height: 44px;
  cursor: pointer;
  border-radius: var(--radius);
}
.menu-toggle span {
  display: block;
  width: 18px; height: 2px;
  margin: 4px auto;
  background: currentColor;
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s, color 0.2s, box-shadow 0.2s;
  text-align: center;
}
.btn:active { transform: scale(0.98); }
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 8px 24px rgba(240, 90, 40, 0.35);
}
.btn--ghost {
  background: transparent;
  color: var(--text-on-dark);
  border: 1px solid rgba(232, 238, 245, 0.35);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }
.btn--block { width: 100%; }
.btn-group { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* ——— Hero ——— */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  min-height: calc(100dvh - var(--header-h));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: var(--bg);
  color: var(--text-on-dark);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(15,20,28,0.92) 0%, rgba(15,20,28,0.55) 45%, rgba(15,20,28,0.75) 100%),
    repeating-linear-gradient(0deg, transparent, transparent 11px, rgba(240,90,40,0.07) 11px, rgba(240,90,40,0.07) 12px),
    repeating-linear-gradient(90deg, transparent, transparent 11px, rgba(232,238,245,0.06) 11px, rgba(232,238,245,0.06) 12px),
    radial-gradient(ellipse 80% 60% at 70% 40%, #2a3a52 0%, #0f141c 70%);
  animation: meshPulse 12s ease-in-out infinite alternate;
}
@keyframes meshPulse {
  from { filter: contrast(1); }
  to { filter: contrast(1.08) brightness(1.05); }
}
.hero > .container {
  position: relative;
  z-index: 1;
  width: 100%;
  align-self: end;
}
.hero__content {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(4rem, 10vw, 7rem);
  text-align: left;
}
.hero h1,
.hero__lead {
  max-width: none;
}
.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.35em;
  animation: riseIn 0.9s var(--ease) both;
}
.hero h1 {
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  font-weight: 600;
  color: rgba(232, 238, 245, 0.92);
  margin-bottom: 0.75em;
  animation: riseIn 0.9s 0.1s var(--ease) both;
}
.hero__lead {
  font-size: 1.1rem;
  color: rgba(232, 238, 245, 0.72);
  margin: 0 0 1.75rem;
  animation: riseIn 0.9s 0.18s var(--ease) both;
}
.hero .btn-group { animation: riseIn 0.9s 0.26s var(--ease) both; }
@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

/* ——— Icons ——— */
.ico {
  display: block;
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  object-fit: contain;
}
.ico--lg { width: 2.5rem; height: 2.5rem; }
.ico-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.25rem;
  height: 3.25rem;
  margin-bottom: 1rem;
  background: var(--accent-soft);
  border: 1px solid rgba(240, 90, 40, 0.2);
}
.ico-wrap .ico { width: 1.75rem; height: 1.75rem; }
.section--dark .ico-wrap {
  background: rgba(240, 90, 40, 0.18);
  border-color: rgba(240, 90, 40, 0.35);
}
.section--dark .ico { filter: brightness(0) invert(1); opacity: 0.92; }

/* ——— Trust strip (под hero, не в первом экране hero) ——— */
.trust-strip {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 1.35rem 0;
}
.trust-strip__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem 1.5rem;
}
.trust-strip__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 0.85rem;
  align-items: start;
  font-size: 0.92rem;
  line-height: 1.35;
  color: var(--text);
  padding: 0;
  border-left: none;
}
.trust-strip__item .ico-wrap {
  width: 2.75rem;
  height: 2.75rem;
  margin: 0;
}
.trust-strip__item strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
  grid-column: 2;
}
.trust-strip__item span {
  color: var(--text-muted);
  font-size: 0.85rem;
  grid-column: 2;
}
.trust-strip__item .ico-wrap { grid-row: 1 / span 2; }

/* ——— How it works ——— */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 1.5rem;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 1.35rem 1.25rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--line);
}
.step__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  margin-bottom: 0.85rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: #fff;
  background: var(--accent);
}
.step .ico-wrap { margin-bottom: 0.85rem; }
.step h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}
.step p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ——— Sectors ——— */
.sectors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 0.75rem;
}
.sector {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color 0.2s var(--ease), color 0.2s, background 0.2s;
}
a.sector:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}
.product-card__specs {
  list-style: none;
  margin: 0.15rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.product-card__specs li {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.8rem;
  line-height: 1.3;
}
.product-card__specs span { color: var(--text-muted); }
.product-card__specs strong {
  font-weight: 600;
  text-align: right;
  color: var(--text);
}

/* ——— Reviews ——— */
.reviews-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.reviews-head .section__head {
  margin-bottom: 0;
  width: 100%;
  max-width: 40rem;
}
.reviews-nav {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
  padding-bottom: 0.15rem;
}
.reviews-nav__btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.reviews-nav__btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.reviews-nav__btn:disabled {
  opacity: 0.35;
  cursor: default;
}
.reviews-slider {
  position: relative;
  overflow: hidden;
}
.reviews-slider__track {
  display: flex;
  gap: 1.25rem;
  transition: transform 0.45s var(--ease);
  will-change: transform;
}
.review {
  flex: 0 0 calc((100% - 2.5rem) / 3);
  min-width: 0;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: 2px solid var(--accent);
  box-sizing: border-box;
}
.review blockquote {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--text);
}
.review cite {
  display: block;
  font-style: normal;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.review cite strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 0.15rem;
}
.reviews-dots {
  display: flex;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 1.5rem;
}
.reviews-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
}
.reviews-dots button.is-active {
  background: var(--accent);
  transform: scale(1.15);
}

/* ——— Quiz (container width, one viewport) ——— */
.section--quiz {
  padding: clamp(1.25rem, 3vh, 2rem) 0;
  min-height: calc(100dvh - var(--header-h));
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: stretch;
  background: var(--bg-elevated);
  color: var(--text-on-dark);
}
.quiz-wrap {
  display: flex;
  flex: 1;
  min-height: 0;
  /* .container уже задаёт ширину Bootstrap */
}
.quiz--viewport {
  width: 100%;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: clamp(1rem, 2.2vh, 1.5rem) 0 0;
  box-sizing: border-box;
  max-width: none;
  border: none;
  background: transparent;
}
.quiz__chrome {
  flex-shrink: 0;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem 2rem;
  align-items: end;
  margin-bottom: clamp(0.75rem, 2vh, 1.25rem);
  padding-bottom: clamp(0.75rem, 1.5vh, 1rem);
  border-bottom: 1px solid rgba(232, 238, 245, 0.12);
}
.quiz__intro h2 {
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  margin: 0 0 0.25rem;
  color: var(--text-on-dark);
}
.quiz__intro p {
  margin: 0;
  color: rgba(232, 238, 245, 0.65);
  font-size: 0.95rem;
}
.quiz__top { margin: 0; }
.quiz__progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(232, 238, 245, 0.7);
}
.quiz__top-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.quiz__back,
.quiz__restart {
  background: none;
  border: none;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  font-size: 0.85rem;
}
.quiz__back:hover,
.quiz__restart:hover { text-decoration: underline; }
.quiz__progress {
  height: 3px;
  background: rgba(232, 238, 245, 0.15);
  overflow: hidden;
}
.quiz__progress-bar {
  height: 100%;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}
.quiz__stage {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.quiz__stage > .quiz__question {
  flex-shrink: 0;
}
.quiz__question {
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  margin: 0 0 clamp(0.75rem, 2vh, 1.1rem);
  color: var(--text-on-dark);
}
.quiz__options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(0.5rem, 1.2vh, 0.85rem) clamp(0.65rem, 1.5vw, 1rem);
  flex: 1;
  min-height: 0;
  align-content: stretch;
}
.quiz__option {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 0.85rem;
  row-gap: 0.15rem;
  align-items: center;
  text-align: left;
  padding: clamp(0.7rem, 1.8vh, 1rem) clamp(0.8rem, 1.4vw, 1.15rem);
  border: 1px solid rgba(232, 238, 245, 0.18);
  background: rgba(15, 20, 28, 0.45);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s, transform 0.15s;
  min-height: 0;
}
.quiz__option:hover,
.quiz__option.is-selected {
  border-color: var(--accent);
  background: rgba(240, 90, 40, 0.16);
}
.quiz__option:active { transform: scale(0.99); }
.quiz__option-icon {
  grid-row: 1 / span 2;
  width: 48px;
  height: 48px;
  border-radius: 2px;
  background: rgba(232, 238, 245, 0.06);
  border: 1px solid rgba(232, 238, 245, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.quiz__option-icon svg {
  width: 28px;
  height: 28px;
  display: block;
}
.quiz__option-label {
  font-weight: 700;
  font-size: clamp(0.92rem, 1.4vw, 1.05rem);
  color: var(--text-on-dark);
  line-height: 1.25;
}
.quiz__option-hint {
  font-size: 0.8rem;
  color: rgba(232, 238, 245, 0.55);
  line-height: 1.3;
}
.quiz__result {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(1rem, 2vw, 1.75rem);
  align-items: start;
}
.quiz__result-main { min-width: 0; }
.quiz__result-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.35rem;
}
.quiz__result-specs {
  list-style: none;
  margin: 0 0 0.85rem;
  padding: 0;
  border-top: 1px solid rgba(232, 238, 245, 0.12);
}
.quiz__result-specs li {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 1rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(232, 238, 245, 0.12);
  font-size: 0.9rem;
}
.quiz__result-specs span { color: rgba(232, 238, 245, 0.55); }
.quiz__result-specs strong {
  text-align: right;
  font-weight: 700;
  color: var(--text-on-dark);
}
.quiz__result-note {
  color: rgba(232, 238, 245, 0.6);
  font-size: 0.88rem;
  margin: 0 0 0.75rem;
}
.quiz__result-links { margin: 0; }
.quiz__result-links .btn--outline {
  border-color: rgba(232, 238, 245, 0.3);
  color: var(--text-on-dark);
}
.quiz__form-panel {
  margin-top: 0;
  background: var(--surface);
  color: var(--text);
  padding: 1.15rem 1.25rem;
}
.quiz__form-panel h4 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.25rem;
}
.quiz__form-panel > p {
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
}
.quiz__form-panel .form { gap: 0.65rem; }
.quiz__form-panel textarea { min-height: 4.5rem; }
.quiz__form-panel .form-trust { margin-bottom: 0.65rem; }
.quiz__form-panel .form-trust li { font-size: 0.8rem; }

@media (max-width: 900px) {
  .quiz__chrome { grid-template-columns: 1fr; gap: 0.75rem; }
  .quiz__options { grid-template-columns: 1fr 1fr; }
  .quiz__result { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .section--quiz {
    min-height: auto;
  }
  .quiz__options {
    grid-template-columns: 1fr;
    align-content: start;
  }
  .quiz__option-icon {
    width: 42px;
    height: 42px;
  }
  .quiz__option-icon svg {
    width: 24px;
    height: 24px;
  }
}

/* ——— Form trust ——— */
.form-trust {
  margin: 0 0 1.15rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}
.form-trust li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.35;
}
.form-trust li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--accent);
}
.form-note {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.4;
}
.cta-band__trust {
  margin-top: 0.85rem;
  font-size: 0.9rem;
  color: rgba(232, 238, 245, 0.65);
}

/* ——— Sections ——— */
.section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}
.section--dark {
  background: var(--bg);
  color: var(--text-on-dark);
}
.section--soft { background: var(--bg-soft); }
.section__head {
  width: 100%;
  max-width: none;
  margin-bottom: 2.5rem;
}
/* Заголовки секций — 8 колонок Bootstrap внутри контейнера */
@media (min-width: 992px) {
  .section > .container > .section__head {
    width: 66.66666667%;
  }
}
.section__head h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
}
.section__head p {
  color: var(--text-muted);
  margin: 0;
}
.section--dark .section__head p { color: rgba(232,238,245,0.65); }

/* ——— Benefits ——— */
.benefits {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.benefit {
  position: relative;
  padding: 1.35rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
}
.benefit h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}
.benefit p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ——— Categories ——— */
.categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}
.category {
  background: var(--surface);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.category:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.category__media {
  aspect-ratio: 480 / 280;
  background: var(--bg-elevated);
  overflow: hidden;
}
.category__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}
.category:hover .category__media img {
  transform: scale(1.04);
}
.category__body {
  padding: 1.15rem 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.category__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.45rem;
}
.category h3 { font-size: 1.2rem; margin: 0; }
.category p {
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ——— Product grid ——— */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
  overflow: hidden;
}
.product-card[hidden] { display: none !important; }
.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.product-card__media {
  aspect-ratio: 4/3;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}
.product-card__media svg,
.product-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card__body {
  padding: 1.15rem 1.25rem 1.35rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.5rem;
}
.product-card__meta {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
}
.product-card h3 {
  font-size: 1.05rem;
  margin: 0;
}
.product-card h3 a:hover { color: var(--accent); }
.product-card__price {
  margin-top: auto;
  padding-top: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
}
.product-card__price span {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}
.product-card__actions {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.35rem;
}
.product-card__actions .btn {
  padding: 0.7rem 1rem;
  font-size: 0.9rem;
}

/* ——— CTA band ——— */
.cta-band {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--bg-elevated);
  color: var(--text-on-dark);
  padding: clamp(2rem, 5vw, 3.5rem);
}
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
.cta-band p { color: rgba(232,238,245,0.7); margin-bottom: 0; }

/* ——— FAQ ——— */
.faq { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 1.15rem 0;
}
.faq summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--accent);
  font-weight: 400;
  font-size: 1.4rem;
  line-height: 1;
}
.faq details[open] summary::after { content: "−"; }
.faq details p {
  margin: 0.85rem 0 0;
  color: var(--text-muted);
  max-width: 50rem;
}

/* ——— About company ——— */
.about-text {
  max-width: none;
  margin-bottom: 2rem;
}
.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}
.about-text p:last-child { margin-bottom: 0; }
.about-facts {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.about-facts__item {
  background: var(--surface);
  padding: 1.25rem 1.15rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.85rem;
  align-items: start;
}
.about-facts__item .ico-wrap {
  grid-row: 1 / span 2;
  margin: 0;
  width: 2.75rem;
  height: 2.75rem;
}
.about-facts__item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0;
}
.about-facts__item span {
  font-size: 0.95rem;
  line-height: 1.4;
  color: var(--text);
}
.about-actions { flex-wrap: wrap; }
#about .section__head {
  width: 100%;
}

/* ——— Ask a question ——— */
.ask-block {
  align-items: start;
  row-gap: 1.5rem;
}
.ask-block__intro .section__head {
  width: 100%;
  margin-bottom: 1.5rem;
}
.ask-block__form-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0 0 0.35rem;
}
.ask-block__form > p {
  color: var(--text-muted);
  margin: 0 0 1.25rem;
}
.ask-block textarea {
  min-height: 8rem;
  resize: vertical;
}

/* ——— Catalog layout ——— */
.page-hero {
  background: var(--bg);
  color: var(--text-on-dark);
  padding: 3rem 0 2.5rem;
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.page-hero p { color: rgba(232,238,245,0.7); max-width: 36rem; margin: 0; }
.catalog-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2.5rem 0 4rem;
}
.filters {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.35rem;
  position: sticky;
  top: calc(var(--header-h) + 1rem);
}
.filters h2 {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.filter-group { margin-bottom: 1.25rem; }
.filter-group label,
.filter-group .filter-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.filters select,
.filters input[type="search"] {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-page);
}
.filters select:focus,
.filters input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.catalog-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  gap: 1rem;
  flex-wrap: wrap;
}
.catalog-count { color: var(--text-muted); font-size: 0.95rem; }
.catalog-empty {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-muted);
  border: 1px dashed var(--line);
  background: var(--surface);
}

/* ——— Product page ——— */
.product-detail {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  padding: 2.5rem 0 4rem;
}
.product-gallery {
  background: var(--bg-elevated);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--line);
}
.product-gallery svg,
.product-gallery img { width: 100%; height: 100%; object-fit: cover; }
.product-info__category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.product-info h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.product-info__price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  margin: 1rem 0;
}
.product-info__price span {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}
.specs {
  margin: 1.5rem 0;
  border-top: 1px solid var(--line);
}
.specs dt, .specs dd {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  margin: 0;
}
.specs dt { color: var(--text-muted); font-size: 0.9rem; }
.specs dd { font-weight: 600; text-align: right; }
/* redefine specs as rows */
.specs { display: grid; }
.specs .spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}
.specs .spec-row span:first-child { color: var(--text-muted); }
.specs .spec-row span:last-child { font-weight: 600; text-align: right; }

/* ——— Forms ——— */
.form {
  display: grid;
  gap: 1rem;
}
.form-row { display: grid; gap: 0.35rem; }
.form-row label { font-weight: 600; font-size: 0.9rem; }
.form-row label .req { color: var(--accent); }
.form-row input,
.form-row textarea {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  width: 100%;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.form-row input.is-invalid,
.form-row textarea.is-invalid { border-color: var(--err); }
.form-error {
  color: var(--err);
  font-size: 0.85rem;
  min-height: 1.2em;
}
.form-status {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  font-weight: 500;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status--ok {
  background: rgba(31, 138, 91, 0.12);
  color: var(--ok);
}
.form-status--err {
  background: rgba(192, 57, 43, 0.1);
  color: var(--err);
}
.form-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.75rem;
}
.form-panel h2 { font-size: 1.35rem; margin-bottom: 0.35rem; }
.form-panel > p { color: var(--text-muted); margin-bottom: 1.25rem; }

/* ——— Contacts ——— */
.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2rem;
  padding: 2.5rem 0 4rem;
}
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact-item .ico-wrap {
  margin: 0;
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
}
.contact-item h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.contact-item p, .contact-item a {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
}
.contact-item a:hover { color: var(--accent); }

/* ——— Footer ——— */
.site-footer {
  background: var(--bg);
  color: var(--text-on-dark);
  padding: 3rem 0 2rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}
.footer-brand .logo { margin-bottom: 1rem; }
.footer-brand .logo img,
.footer-brand .logo__mark { height: 44px; width: 44px; }
.footer-brand p { color: rgba(232,238,245,0.6); font-size: 0.95rem; }
.footer-col h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(232,238,245,0.45);
  margin-bottom: 1rem;
}
.footer-col a, .footer-col p {
  display: block;
  color: rgba(232,238,245,0.85);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(232,238,245,0.1);
  padding-top: 1.25rem;
  font-size: 0.85rem;
  color: rgba(232,238,245,0.45);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-bottom a {
  color: rgba(232,238,245,0.7);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}
.footer-bottom a:hover { color: #fff; }

/* ——— Sticky mobile CTA ——— */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 90;
  padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom));
  background: rgba(15, 20, 28, 0.96);
  border-top: 1px solid rgba(232,238,245,0.1);
  gap: 0.75rem;
}
.mobile-cta .btn { flex: 1; }

/* ——— Modal ——— */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal.is-open { display: flex; }
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 20, 28, 0.7);
}
.modal__dialog {
  position: relative;
  background: var(--surface);
  width: min(100%, 440px);
  padding: 1.75rem;
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow);
}
.modal__close {
  position: absolute;
  top: 0.75rem; right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  color: var(--text-muted);
}

/* ——— Breadcrumbs ——— */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}
.breadcrumbs a:hover { color: var(--accent); }
.page-hero .breadcrumbs { color: rgba(232,238,245,0.55); }
.page-hero .breadcrumbs a { color: rgba(232,238,245,0.75); }


.cta-promise {
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  color: rgba(232,238,245,0.75);
}
.product-info .cta-promise,
.section .cta-promise { color: var(--text-muted); }

.product-card__utp {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
  line-height: 1.35;
  color: var(--accent);
  font-weight: 600;
}

/* ——— Mesh tips / packs / cases / calc ——— */
.mesh-tips {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.mesh-tip {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.1rem 1rem;
}
.mesh-tip strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}
.mesh-tip span { font-size: 0.88rem; color: var(--text-muted); }

.packs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.pack {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.pack__media {
  aspect-ratio: 16 / 7;
  background: var(--bg);
  overflow: hidden;
}
.pack__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pack__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}
.pack h3 { margin: 0; font-size: 1.25rem; }
.pack__meta { margin: 0; color: var(--text-muted); font-size: 0.9rem; }
.pack .form-trust { flex: 1; margin-bottom: 0.25rem; }

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.cases-grid--home { grid-template-columns: repeat(3, 1fr); }
.case-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.case-card__media {
  aspect-ratio: 16 / 7;
  background: var(--bg);
  overflow: hidden;
}
.case-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}
.case-card:hover .case-card__media img { transform: scale(1.04); }
.case-card__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}
.case-card h3 { margin: 0; font-size: 1.15rem; }
.case-card p { margin: 0; font-size: 0.92rem; color: var(--text-muted); }
.case-card .btn { margin-top: auto; align-self: flex-start; }
.case-card__tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

.compare-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.compare-card {
  background: var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.compare-card__media {
  aspect-ratio: 16 / 9;
  background: var(--bg);
}
.compare-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.compare-card__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}
.compare-card h3 { margin: 0; font-size: 1.2rem; }
.compare-card__specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}
.compare-card__specs li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.4rem;
}
.compare-card__specs span { color: var(--text-muted); }
.compare-card__specs strong { text-align: right; }

.sectors--visual {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.sectors--visual .sector {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  font-size: 0.95rem;
}
.sectors--visual .sector .ico-wrap {
  margin: 0;
  width: 2.75rem;
  height: 2.75rem;
}
.sectors--visual .sector span { line-height: 1.3; }

.calc-visual {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.calc-visual .ico-wrap {
  margin: 0;
  width: 3.5rem;
  height: 3.5rem;
}
.cta-band__visual {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.cta-band__visual .ico-wrap { margin: 0; }

.calc-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.92rem;
}
.calc-modes label { display: flex; align-items: center; gap: 0.4rem; cursor: pointer; }
.calc-result {
  margin: 0.5rem 0 1rem;
  padding: 1rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.calc-result__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
}
.calc-result__grid span {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.calc-result__grid strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}
.calc-result__hint {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.guide-table-wrap { overflow-x: auto; }
.guide-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 0.92rem;
}
.guide-table th,
.guide-table td {
  border: 1px solid var(--line);
  padding: 0.75rem 0.85rem;
  text-align: left;
  vertical-align: top;
}
.guide-table thead th {
  background: var(--bg);
  color: var(--text-on-dark);
  font-weight: 600;
}
.guide-table tbody th {
  font-weight: 600;
  background: var(--bg-soft);
  white-space: nowrap;
}
.compare-table .btn { width: 100%; }

.install-steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 0.85rem;
  margin: 0 0 1.5rem;
  padding: 0;
}
.install-steps li {
  counter-increment: step;
  position: relative;
  padding: 1rem 1rem 1rem 3.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.95rem;
  line-height: 1.45;
}
.install-steps li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1rem;
  width: 1.6rem;
  height: 1.6rem;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}
.callout {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  padding: 1.35rem 1.35rem 1.35rem 1.5rem;
}
.callout h3 { margin: 0 0 0.75rem; font-size: 1.15rem; }
.callout .btn { margin-top: 0.75rem; }

.catalog-empty .btn-group { flex-wrap: wrap; }

/* ——— Responsive base ——— */
html { overflow-x: clip; }
body { overflow-x: clip; }
img, video { max-width: 100%; height: auto; }
.guide-table-wrap { -webkit-overflow-scrolling: touch; }
.guide-table { min-width: 36rem; }
.site-header__inner { gap: 0.75rem; }
.site-header { position: sticky; }

/* Tablet / small laptop */
@media (max-width: 1100px) {
  .nav { gap: 1rem; }
  .nav a { font-size: 0.88rem; }
  .header-phone { font-size: 0.85rem; }
}

/* Tablet portrait + landscape */
@media (max-width: 992px) {
  .nav, .header-phone { display: none; }
  .menu-toggle { display: block; }
  .site-header.is-open .nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg);
    padding: 1.25rem 1.5rem 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid rgba(232, 238, 245, 0.1);
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
  }

  .benefits,
  .categories,
  .product-grid,
  .trust-strip__list,
  .about-facts,
  .sectors--visual,
  .compare-cards,
  .cases-grid--home {
    grid-template-columns: repeat(2, 1fr);
  }
  .packs,
  .cases-grid:not(.cases-grid--home) {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps { grid-template-columns: 1fr; }
  .mesh-tips { grid-template-columns: repeat(2, 1fr); }
  .review { flex-basis: calc((100% - 1.25rem) / 2); }
  .cta-band { grid-template-columns: 1fr; gap: 1.5rem; }
  .catalog-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .filters { position: static; }
  .product-detail { grid-template-columns: 1fr; gap: 1.75rem; padding: 1.75rem 0 3rem; }
  .contacts-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .calc-result__grid { grid-template-columns: 1fr 1fr; }

  .section { padding: clamp(2.75rem, 6vw, 4rem) 0; }
  .page-hero { padding: 2.25rem 0 2rem; }
  .catalog-layout { padding: 1.75rem 0 3rem; }
  .hero__content { padding: clamp(2.5rem, 7vw, 4.5rem) 0 clamp(3rem, 8vw, 5rem); }
  .hero__brand { font-size: clamp(2.2rem, 9vw, 4rem); }
  .btn-group { gap: 0.65rem; }
  .catalog-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .catalog-toolbar .btn { width: 100%; }
  .form-panel { padding: 1.35rem 1.15rem; }
  .modal__dialog { padding: 1.35rem 1.15rem; width: min(100%, 480px); }
}

/* Phones */
@media (max-width: 720px) {
  .mobile-cta { display: flex; }
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }

  .benefits,
  .categories,
  .product-grid,
  .trust-strip__list,
  .about-facts,
  .packs,
  .cases-grid,
  .cases-grid--home,
  .compare-cards,
  .sectors--visual,
  .footer-grid,
  .steps,
  .mesh-tips {
    grid-template-columns: 1fr;
  }
  .calc-result__grid { grid-template-columns: 1fr; }

  .hero {
    min-height: auto;
    min-height: unset;
  }
  .hero__content { padding: 2.5rem 0 3rem; }
  .hero__brand { font-size: clamp(2rem, 11vw, 2.8rem); word-break: break-word; }
  .hero__lead { font-size: 1rem; }
  .hero .btn-group,
  .about-actions.btn-group,
  .cta-band .btn-group,
  .product-info .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  .hero .btn-group .btn,
  .about-actions.btn-group .btn,
  .cta-band .btn-group .btn,
  .product-info .btn-group .btn {
    width: 100%;
  }

  .reviews-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .review { flex-basis: 100%; }

  .calc-visual {
    flex-direction: column;
    gap: 0.85rem;
  }
  .calc-visual .section__head { width: 100%; }
  .ask-block { row-gap: 1.25rem; }
  .cta-band__visual { flex-wrap: wrap; }

  .contact-list { gap: 1.75rem; }
  .contact-item { gap: 0.85rem; }
  .contact-item p,
  .contact-item a { font-size: 1.05rem; word-break: break-word; }

  .product-card__body { padding: 1rem 1rem 1.15rem; }
  .product-card__actions { gap: 0.4rem; }
  .catalog-empty .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  .catalog-empty .btn-group .btn { width: 100%; }

  .guide-table { font-size: 0.85rem; }
  .guide-table th,
  .guide-table td { padding: 0.55rem 0.65rem; }
  .install-steps li { padding: 0.9rem 0.9rem 0.9rem 3rem; font-size: 0.9rem; }
  .callout { padding: 1.1rem; }
  .callout .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  .callout .btn { width: 100%; }

  .footer-grid { gap: 1.75rem; }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .mobile-cta { gap: 0.5rem; padding: 0.65rem 0.75rem calc(0.65rem + env(safe-area-inset-bottom)); }
  .mobile-cta .btn {
    padding-left: 0.55rem;
    padding-right: 0.55rem;
    font-size: 0.85rem;
  }

  .page-hero h1 { font-size: clamp(1.65rem, 7vw, 2.2rem); }
  .section__head { margin-bottom: 1.75rem; }
  .faq summary { padding: 1rem 2rem 1rem 0; font-size: 0.98rem; }

  .logo__text { font-size: 1.15rem; }
  .header-cta { gap: 0.5rem; }
  .header-cta .btn--primary { padding: 0.7rem 0.95rem; font-size: 0.9rem; }
}

/* Very small phones */
@media (max-width: 400px) {
  .trust-strip__item {
    grid-template-columns: 1fr;
  }
  .trust-strip__item .ico-wrap {
    grid-row: auto;
  }
  .trust-strip__item strong,
  .trust-strip__item span { grid-column: auto; }
  .about-facts__item {
    grid-template-columns: 1fr;
  }
  .about-facts__item .ico-wrap { grid-row: auto; }
  .hero__brand { font-size: 1.85rem; }
  .btn { padding: 0.8rem 1.1rem; }
}