:root {
  --ink: #1f2520;
  --muted: #647064;
  --paper: #fbfaf5;
  --panel: #ffffff;
  --soft: #eef2e8;
  --line: #dce2d7;
  --green: #2f6f4e;
  --gold: #b88945;
  --dark: #17231c;
  --white: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  width: 100%;
  padding: 0;
  transform: translateY(-102%);
  transition: transform .4s cubic-bezier(0, 0, .8, 1), background-color .25s ease, box-shadow .25s ease;
  background: transparent;
}

.topbar.is-visible {
  transform: translateY(0);
  background: rgba(0, 0, 0, .58);
  box-shadow: 0 18px 48px rgba(0,0,0,.18);
  backdrop-filter: blur(8px);
}

.header-shell {
  display: grid;
  grid-template-columns: minmax(205px, auto) 1fr auto auto;
  gap: 20px;
  align-items: center;
  max-width: 1220px;
  min-height: 92px;
  margin: 0 auto;
  padding: 12px clamp(16px, 4vw, 34px);
}

.brand, .header-cta, .actions, .hero-points, .section-head, .segmented, .contact-list {
  display: flex;
  align-items: center;
}

.brand { gap: 10px; min-width: 205px; color: var(--white); }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(135deg, #ffd900, #ffb300);
  color: #111;
  font-weight: 800;
}
.brand b, .brand small { display: block; }
.brand small, .header-cta span { color: rgba(255,255,255,.76); font-size: 12px; }

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(10px, 1.4vw, 20px);
  color: rgba(255,255,255,.92);
  font-size: 14px;
}
.nav a { white-space: nowrap; }

.header-cta {
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
  color: var(--white);
}
.header-cta a { font-weight: 800; white-space: nowrap; }
.header-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 30px;
  color: #111;
  background: radial-gradient(circle at center, #72ef6a 0%, #50cf51 100%);
  font-weight: 800;
  box-shadow: 20px 18px 24px -16px rgba(0,0,0,.45);
  white-space: nowrap;
}
.menu-toggle {
  display: none;
  width: 46px;
  height: 42px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
  transition: transform .2s ease, opacity .2s ease;
}
.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero, .section {
  padding: clamp(46px, 7vw, 96px) clamp(16px, 5vw, 72px);
}

.section {
  content-visibility: auto;
  contain-intrinsic-size: 760px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, .98fr) minmax(360px, .86fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: center;
  min-height: 760px;
  padding-top: clamp(86px, 10vw, 128px);
  color: var(--white);
  background:
    linear-gradient(115deg, rgba(20, 31, 24, .98), rgba(38, 69, 49, .92) 56%, rgba(22, 33, 26, .86)),
    radial-gradient(circle at 82% 18%, rgba(255, 217, 0, .22), transparent 35%);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 870px;
  margin-bottom: 18px;
  font-size: clamp(40px, 5.2vw, 70px);
  line-height: 1.02;
  letter-spacing: 0;
}
h2 {
  max-width: 820px;
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}
h3 { margin-bottom: 8px; font-size: 21px; }
.lead { max-width: 680px; color: rgba(255, 255, 255, .82); font-size: 20px; }
.hero-kicker {
  display: inline-flex;
  margin: 0 0 16px;
  padding: 8px 12px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 30px;
  color: rgba(255,255,255,.88);
  background: rgba(255,255,255,.08);
  font-size: 14px;
  font-weight: 700;
}

.hero-trust {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 720px;
  margin-top: 24px;
}
.hero-trust article {
  min-height: 92px;
  padding: 16px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  background: rgba(255,255,255,.1);
}
.hero-trust b {
  display: block;
  margin-bottom: 6px;
  color: var(--white);
  font-size: 21px;
}
.hero-trust span { color: rgba(255,255,255,.76); }

.sale-card {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 16px;
  align-items: center;
  max-width: 760px;
  margin-top: 16px;
  padding: 18px;
  border-radius: 8px;
  color: #111;
  background: linear-gradient(135deg, #ffd900, #ffb300);
  box-shadow: 0 18px 46px rgba(0,0,0,.22);
}
.sale-label {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  border-radius: 50%;
  color: var(--white);
  background: #d92d20;
  font-weight: 800;
  transform: rotate(-8deg);
}
.sale-card b {
  display: block;
  margin-bottom: 4px;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.05;
}
.sale-card p { margin: 0; color: rgba(17,17,17,.72); font-weight: 700; }

.hero-quiz-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: center;
  margin-top: 18px;
}
.hero-quiz-cta span {
  max-width: 300px;
  color: rgba(255,255,255,.74);
  font-size: 14px;
}

.actions { flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 13px 18px;
  border: 0;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
}
.btn-primary { color: var(--white); background: var(--green); }
.btn-outline { color: var(--white); border: 1px solid rgba(255,255,255,.38); }
.btn-light { color: var(--dark); background: var(--white); }

.hero-points {
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}
.hero-points li {
  min-width: 150px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
}
.hero-points b { display: block; font-size: 24px; }
.hero-points span { color: rgba(255,255,255,.7); font-size: 14px; }

.hero-visual { position: relative; }
.hero-badge {
  position: absolute;
  right: 18px;
  bottom: 18px;
  max-width: 240px;
  padding: 14px 16px;
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255,255,255,.92);
  font-weight: 800;
}
.manufacturer-note {
  position: absolute;
  z-index: 3;
  top: 112px;
  right: 18px;
  max-width: 210px;
  padding: 12px 14px;
  border-radius: 30px;
  color: #111;
  background: #ffd900;
  font-weight: 800;
  box-shadow: 0 16px 38px rgba(0,0,0,.18);
}

.media-placeholder {
  position: relative;
  display: grid;
  place-items: center;
  margin: 0;
  min-height: 260px;
  overflow: hidden;
  border-radius: 8px;
  color: rgba(31, 37, 32, .65);
  font-weight: 800;
  background:
    linear-gradient(135deg, rgba(47,111,78,.22), rgba(184,137,69,.25)),
    repeating-linear-gradient(45deg, #d9dfd2 0 16px, #c9d3c4 16px 32px);
}
.media-placeholder img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-placeholder figcaption {
  position: relative;
  z-index: 2;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255,255,255,.82);
  box-shadow: 0 10px 28px rgba(0,0,0,.12);
}
.rating-card,
.quiz-entry {
  position: absolute;
  z-index: 3;
  border-radius: 8px;
  background: rgba(255,255,255,.94);
  color: var(--ink);
  box-shadow: 0 18px 48px rgba(0,0,0,.2);
}
.rating-card {
  top: 18px;
  left: 18px;
  display: grid;
  gap: 2px;
  min-width: 112px;
  padding: 14px 16px;
}
.rating-card b { font-size: 34px; line-height: 1; }
.rating-card span { color: var(--muted); font-size: 13px; }
.quiz-entry {
  left: 18px;
  bottom: 18px;
  max-width: 300px;
  padding: 16px;
}
.quiz-entry span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}
.quiz-entry b {
  display: block;
  margin: 4px 0 12px;
  font-size: 20px;
  line-height: 1.15;
}
.quiz-entry a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 30px;
  color: #111;
  background: #ffd900;
  font-weight: 800;
}
.media-placeholder::after {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(255,255,255,.42);
  border-radius: 6px;
}
.media-hero { min-height: 520px; box-shadow: 0 28px 80px rgba(0,0,0,.28); }

.section-muted { background: var(--soft); }
.section-dark { color: var(--white); background: var(--dark); }
.section-copy { max-width: 780px; }
.section-copy p, .product-body p, .benefit-grid p, .contact-copy p { color: var(--muted); }

.section-head {
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 28px;
}
.text-link { color: var(--green); font-weight: 800; }

.quiz-section {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 520px);
  gap: 28px;
  align-items: start;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.quiz-card, .contact-form {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}
label span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 14px; }
input, select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.quiz-preview {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}
.quiz-preview-head {
  display: grid;
  gap: 4px;
  margin-bottom: 16px;
}
.quiz-preview-head b { font-size: 28px; line-height: 1; }
.quiz-preview-head span { color: var(--muted); }
.quiz-preview ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}
.quiz-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 18px;
}
.quiz-modal.is-open { display: grid; }
.quiz-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.62);
  backdrop-filter: blur(5px);
}
.quiz-dialog {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  max-height: min(760px, calc(100vh - 32px));
  overflow: auto;
  padding: clamp(20px, 4vw, 34px);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 28px 80px rgba(0,0,0,.3);
}
.quiz-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}
.quiz-modal-head h2 { margin-bottom: 14px; }
.quiz-progress {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--soft);
}
.quiz-progress span {
  display: block;
  width: 20%;
  height: 100%;
  border-radius: inherit;
  background: #ffd900;
  transition: width .2s ease;
}
.quiz-step {
  display: none;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  border: 0;
}
.quiz-step.is-active { display: grid; }
.quiz-step legend {
  margin-bottom: 12px;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.12;
}
.option-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  cursor: pointer;
}
.option-card input {
  width: 20px;
  min-height: 20px;
  accent-color: var(--green);
}
.option-card:has(input:checked) {
  border-color: var(--green);
  background: #eef8ee;
  box-shadow: 0 12px 28px rgba(47,111,78,.12);
}
.quiz-note { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.quiz-controls {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
}
.btn-quiet {
  color: var(--ink);
  background: var(--soft);
}
body.quiz-locked { overflow: hidden; }

.benefit-grid,
.reasons-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
}
.benefit-grid article {
  grid-column: span 2;
  min-height: 190px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.benefit-grid article:nth-child(1), .benefit-grid article:nth-child(4) { grid-column: span 3; }
.benefit-grid span { color: var(--gold); font-weight: 800; }

.reasons-grid {
  align-items: stretch;
}
.reason-card {
  grid-column: span 2;
  display: grid;
  align-content: start;
  min-height: 230px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.reason-card.large {
  grid-column: span 3;
  grid-row: span 2;
  min-height: 476px;
}
.reason-card:nth-child(2) { grid-column: span 3; }
.reason-card span {
  color: var(--gold);
  font-weight: 800;
}
.reason-card p { color: var(--muted); }
.reason-media {
  display: grid;
  place-items: center;
  min-height: 210px;
  margin-top: 18px;
  border-radius: 8px;
  color: rgba(31,37,32,.65);
  font-weight: 800;
  background:
    linear-gradient(135deg, rgba(47,111,78,.18), rgba(184,137,69,.26)),
    repeating-linear-gradient(45deg, #d9dfd2 0 16px, #c9d3c4 16px 32px);
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.equipment-grid article {
  min-height: 142px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.equipment-grid b {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}
.equipment-grid span { color: var(--muted); }

.segmented,
.catalog-controls {
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.segmented button,
.catalog-controls button {
  min-height: 36px;
  padding: 8px 12px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}
.segmented .active,
.catalog-controls .active { color: var(--white); background: var(--green); }

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.product-card.featured { border-color: rgba(47,111,78,.5); box-shadow: 0 18px 44px rgba(47,111,78,.13); }
.product-media { min-height: 245px; border-radius: 0; }
.product-body { padding: 18px; }
.product-body b { display: block; margin: 14px 0; font-size: 22px; }
.product-body a { color: var(--green); font-weight: 800; }

.model-slider {
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  gap: 12px;
  align-items: center;
}
.model-slides {
  position: relative;
  min-height: 520px;
}
.model-slide {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: minmax(280px, .86fr) minmax(320px, 1fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}
.model-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}
.model-visual .product-media {
  height: 100%;
  min-height: 520px;
}
.model-info {
  display: grid;
  align-content: center;
  padding: clamp(22px, 4vw, 44px);
}
.model-label {
  margin: 0 0 6px;
  color: var(--gold);
  font-weight: 800;
  text-transform: uppercase;
}
.model-info h3 {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.05;
}
.price-table {
  display: grid;
  gap: 8px;
  margin: 18px 0 22px;
}
.price-table div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--soft);
}
.price-table span { color: var(--muted); }
.price-table b { white-space: nowrap; }
.catalog-arrow { background: var(--panel); }
.catalog-mini-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.catalog-mini-grid article {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.catalog-mini-grid b,
.catalog-mini-grid span { display: block; }
.catalog-mini-grid span { margin-top: 4px; color: var(--muted); }

.gallery-section {
  display: grid;
  grid-template-columns: minmax(260px, .55fr) minmax(340px, 1fr);
  gap: 28px;
  align-items: start;
}
.slider {
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  gap: 10px;
  align-items: center;
}
.slide-track { position: relative; min-height: 390px; }
.slide {
  position: absolute;
  inset: 0;
  min-height: 390px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}
.slide.is-active { opacity: 1; pointer-events: auto; }
.slider-btn {
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  font-size: 30px;
  cursor: pointer;
}
.thumb-grid {
  grid-column: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.thumb { min-height: 130px; font-size: 14px; }

.carousel-section,
.thumb-carousel-section {
  overflow: hidden;
}
.feature-carousel,
.thumb-carousel {
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  gap: 12px;
  align-items: center;
}
.feature-card-track {
  position: relative;
  min-height: 260px;
}
.feature-slide {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  padding: clamp(24px, 5vw, 54px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}
.feature-slide.is-active {
  opacity: 1;
  pointer-events: auto;
}
.feature-slide b {
  display: block;
  max-width: 760px;
  margin-bottom: 10px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
}
.feature-slide span {
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
}
.thumb-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.thumb-track .thumb {
  display: none;
}
.thumb-track .thumb.is-active {
  display: grid;
}

.cta-band {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.cta-band p { color: rgba(255,255,255,.72); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.steps-grid article {
  min-height: 150px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.steps-grid b { display: block; color: var(--gold); margin-bottom: 28px; font-size: 24px; }
.steps-grid span { font-weight: 800; }

.install-hero {
  display: grid;
  grid-template-columns: minmax(280px, .78fr) minmax(340px, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.install-hero p { color: var(--muted); }
.install-media { min-height: 390px; }
.exhibition-section .section-head {
  align-items: center;
}
.order-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.order-steps article {
  min-height: 230px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.order-steps b {
  display: block;
  margin-bottom: 24px;
  color: var(--gold);
  font-size: 26px;
}
.order-steps p { color: var(--muted); }
.order-note {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 16px;
  padding: 18px;
  border-radius: 8px;
  color: #111;
  background: #ffd900;
}
.order-note b { font-size: 20px; }
.order-note span { color: rgba(17,17,17,.7); }

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.video-placeholder,
.video-card {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: 240px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, #1d2c23, #456447);
  color: var(--white);
  cursor: pointer;
  text-align: center;
}
.video-placeholder img,
.video-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .72;
}
.video-placeholder span,
.video-card .play,
.video-frame-demo .play {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,.18);
  font-size: 28px;
}
.video-placeholder b,
.video-card b {
  position: relative;
  z-index: 2;
}
.video-card b {
  align-self: end;
  max-width: 260px;
  font-size: 20px;
}
.video-card small {
  position: relative;
  z-index: 2;
  align-self: start;
  color: rgba(255,255,255,.78);
}
.review-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.review-strip article {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.review-strip b {
  display: block;
  margin-bottom: 8px;
  font-size: 19px;
}
.review-strip span { color: var(--muted); }

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: none;
  place-items: center;
  padding: 18px;
}
.video-modal.is-open { display: grid; }
.video-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.66);
  backdrop-filter: blur(5px);
}
.video-dialog {
  position: relative;
  z-index: 1;
  width: min(860px, 100%);
  padding: 18px;
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 28px 80px rgba(0,0,0,.3);
}
.video-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}
.video-frame-demo {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 360px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--dark);
}
.video-frame-demo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .82;
}
.video-dialog h3 { margin: 16px 0 6px; }
.video-dialog p { margin-bottom: 0; color: var(--muted); }

.contact-section {
  display: block;
}
.contact-layout {
  display: grid;
  grid-template-columns: minmax(280px, .72fr) minmax(340px, 1fr);
  gap: 32px;
  align-items: stretch;
}
.contact-list {
  align-items: flex-start;
  flex-direction: column;
  gap: 8px;
  font-weight: 800;
}
.contact-copy {
  display: grid;
  align-content: center;
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.contact-copy h3 {
  font-size: clamp(28px, 4vw, 42px);
}
.map-card {
  display: grid;
  gap: 14px;
}
.map-placeholder { min-height: 310px; }

.footer {
  display: grid;
  gap: 18px;
  padding: 28px clamp(16px, 5vw, 72px);
  color: rgba(255,255,255,.78);
  background: var(--dark);
  border-top: 1px solid var(--line);
}
.footer-main {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}
.footer-brand { color: var(--white); }
.footer-nav {
  display: flex;
  justify-content: center;
  gap: 18px;
}
.footer-phone {
  display: grid;
  justify-items: end;
  gap: 4px;
}
.footer-phone span,
.footer-legal { font-size: 13px; }
.footer-phone a {
  color: var(--white);
  font-size: 20px;
  font-weight: 800;
}
.footer-legal {
  display: grid;
  gap: 4px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.14);
}

@media (max-width: 1000px) {
  .header-shell {
    grid-template-columns: 1fr auto;
    min-height: 78px;
  }
  .menu-toggle { display: block; }
  .nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    justify-content: flex-start;
    gap: 0;
    padding: 8px 0 4px;
    border-top: 1px solid rgba(255,255,255,.15);
  }
  .nav a {
    padding: 11px 0;
    white-space: normal;
  }
  .topbar.menu-open .nav { display: flex; }
  .header-cta {
    grid-column: 1;
    grid-row: 2;
    align-items: flex-start;
    display: none;
  }
  .header-button {
    grid-column: 2;
    grid-row: 2;
    display: none;
    min-height: 40px;
    padding: 10px 14px;
  }
  .topbar.menu-open .header-cta,
  .topbar.menu-open .header-button { display: flex; }
  .hero, .quiz-section, .gallery-section { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; flex-wrap: wrap; }
  .footer-phone { justify-items: start; }
  .hero { padding-top: 100px; }
  .hero-trust { grid-template-columns: 1fr; }
  .thumb-grid { grid-column: auto; }
  .catalog-grid, .video-grid, .review-strip { grid-template-columns: 1fr; }
  .model-slider { grid-template-columns: 40px 1fr 40px; }
  .model-slides { min-height: 780px; }
  .model-slide { grid-template-columns: 1fr; }
  .model-visual .product-media { min-height: 320px; height: 320px; }
  .catalog-mini-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .thumb-track { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .benefit-grid, .reasons-grid { grid-template-columns: 1fr; }
  .benefit-grid article, .benefit-grid article:nth-child(1), .benefit-grid article:nth-child(4) { grid-column: auto; }
  .reason-card,
  .reason-card.large,
  .reason-card:nth-child(2) {
    grid-column: auto;
    grid-row: auto;
    min-height: auto;
  }
  .equipment-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .install-hero { grid-template-columns: 1fr; }
  .order-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .brand { min-width: 0; }
  .brand small { max-width: 190px; }
  .header-shell { gap: 12px; padding: 10px 14px; }
  .header-button { grid-column: 1 / -1; width: 100%; }
  .hero, .section { padding-inline: 16px; }
  .hero { padding-top: 92px; }
  h1 { font-size: clamp(36px, 11vw, 46px); }
  .media-hero { min-height: 360px; }
  .rating-card { top: 12px; left: 12px; min-width: 92px; padding: 10px 12px; }
  .rating-card b { font-size: 26px; }
  .hero-badge { right: 12px; bottom: 12px; max-width: 170px; padding: 10px 12px; }
  .sale-card {
    grid-template-columns: 1fr;
    padding: 16px;
  }
  .sale-label {
    width: auto;
    height: auto;
    min-height: 38px;
    border-radius: 30px;
    transform: none;
  }
  .manufacturer-note {
    top: auto;
    right: 12px;
    bottom: 72px;
    max-width: 160px;
    padding: 10px 12px;
    font-size: 13px;
  }
  .quiz-entry {
    position: static;
    margin-top: 12px;
    max-width: none;
  }
  .section-head, .cta-band { flex-direction: column; align-items: flex-start; }
  .segmented { width: 100%; overflow-x: auto; }
  .catalog-controls { width: 100%; overflow-x: auto; }
  .slider { grid-template-columns: 40px 1fr 40px; }
  .feature-carousel,
  .thumb-carousel { grid-template-columns: 40px 1fr 40px; }
  .slider-btn { width: 40px; height: 40px; }
  .slide-track, .slide { min-height: 300px; }
  .thumb-grid, .steps-grid, .equipment-grid, .catalog-mini-grid, .order-steps { grid-template-columns: 1fr; }
  .order-note { flex-direction: column; }
  .thumb-track { grid-template-columns: 1fr; }
  .feature-card-track { min-height: 320px; }
  .video-frame-demo { min-height: 220px; }
  .model-slider { grid-template-columns: 1fr; }
  .catalog-arrow { display: none; }
  .model-slides { min-height: 850px; }
  .price-table div { flex-direction: column; gap: 2px; }
}