/* ===== VARIABLES ===== */
:root {
  --ink:       #111111;
  --ink-2:     #555555;
  --ink-3:     #999999;
  --orange:    #D95C00;
  --orange-h:  #B84E00;
  --green:     #1E6940;
  --bg:        #FFFFFF;
  --bg-warm:   #F5F2ED;
  --border:    #E4E4E4;
  --border-2:  #CACACA;
  --radius:    8px;
  --container: 1200px;
  --header-h:  84px;   /* used for scroll-padding & mobile nav */
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ===== CONTAINER ===== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-family: Arial, sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-primary        { background: var(--orange);  color: #fff; border-color: var(--orange); }
.btn-primary:hover  { background: var(--orange-h); border-color: var(--orange-h); }
.btn-ghost          { background: transparent; color: var(--ink); border-color: var(--border-2); }
.btn-ghost:hover    { border-color: var(--ink); }
.btn-white          { background: #fff; color: var(--orange); border-color: #fff; font-weight: 700; }
.btn-white:hover    { background: #f0f0f0; }
.btn-white-ghost    { background: transparent; color: #fff; border-color: rgba(255,255,255,0.55); }
.btn-white-ghost:hover { border-color: #fff; }
.btn-sm             { padding: 10px 20px; font-size: 13px; }

/* ===== TOP BAR ===== */
.top-bar {
  background: #1c1c1c;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 9px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.55);
}
.top-bar .container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 28px;
}
.top-bar a { color: rgba(255,255,255,0.6); transition: color 0.15s; }
.top-bar a:hover { color: #fff; }
.top-bar-sep { opacity: 0.25; }

/* ===== HEADER ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.header-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo-img { height: 44px; width: auto; display: block; }

/* NAV */
.nav { display: flex; align-items: center; flex-shrink: 1; }
.nav > a {
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  padding: 7px 10px; border-radius: 4px;
  transition: color 0.15s; white-space: nowrap;
}
.nav > a:hover { color: var(--ink); }
.header-cta { flex-shrink: 0; white-space: nowrap; }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; border: none; background: none; }
.burger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; }

/* ===== NAV DROPDOWN ===== */
.nav-dropdown { position: relative; display: flex; align-items: center; }
.nav-drop-btn {
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  padding: 7px 10px; border-radius: 4px; cursor: default;
  display: flex; align-items: center; gap: 4px; white-space: nowrap;
  background: none; border: none; font-family: Arial, sans-serif;
  transition: color 0.15s;
}
.nav-drop-btn::after { content: '▾'; font-size: 9px; opacity: 0.5; }
.nav-dropdown:hover .nav-drop-btn { color: var(--ink); }
.nav-drop-panel {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px; min-width: 215px; z-index: 300;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
}
.nav-dropdown:hover .nav-drop-panel { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-drop-panel a {
  display: block; padding: 10px 14px;
  font-size: 14px; font-weight: 500; color: var(--ink-2);
  border-radius: 4px; transition: color 0.12s, background 0.12s;
}
.nav-drop-panel a:hover { color: var(--ink); background: var(--bg-warm); }

/* ===== MOBILE NAV ===== */
.mobile-nav {
  display: none; position: fixed; inset: 0;
  background: #fff; z-index: 200;
  flex-direction: column; padding: 0 24px 40px; overflow-y: auto;
}
.mobile-nav.open { display: flex; }
.mobile-nav-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--border);
  margin-bottom: 8px; flex-shrink: 0;
}
.mobile-nav a {
  display: block; font-size: 17px; font-weight: 600; color: var(--ink);
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.mobile-nav .mob-section-link { color: var(--ink); font-weight: 700; }
.mobile-nav .mob-sub-link {
  font-size: 15px; font-weight: 500; color: var(--ink-2);
  padding: 10px 0 10px 20px;
  border-bottom: 1px solid var(--border);
}
.mobile-nav .mob-sub-link:hover { color: var(--orange); }
.mobile-nav .btn { margin-top: 24px; width: 100%; }
.close-btn { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--ink); line-height: 1; }

/* ===== SECTION BASE ===== */
.section { padding: 96px 0; }
.section-warm { background: var(--bg-warm); }

.s-label {
  display: inline-block; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.4px; color: var(--orange);
  margin-bottom: 14px;
}
.s-title {
  font-size: 36px; font-weight: 700; color: var(--ink);
  line-height: 1.2; margin-bottom: 16px;
}
.s-sub {
  font-size: 17px; color: var(--ink-2); line-height: 1.7;
  margin-bottom: 52px; max-width: 580px;
}
.s-title + .cat-grid,
.s-title + .kits-grid,
.s-title + .why-grid,
.s-title + .steps-h,
.s-title + .sol-grid { margin-top: 40px; }

/* ===== HERO ===== */
.hero { background: var(--bg); border-bottom: 1px solid var(--border); }
.hero-inner { display: grid; grid-template-columns: 55fr 45fr; min-height: 600px; }
.hero-content {
  padding: 88px 72px 88px 0;
  display: flex; flex-direction: column; justify-content: center;
  border-right: 1px solid var(--border);
}
.hero-tag {
  display: inline-block; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.4px; color: var(--orange);
  margin-bottom: 24px;
  animation: fadeUp 0.5s ease-out both;
}
.hero h1 {
  font-size: 50px; font-weight: 700; line-height: 1.12; color: var(--ink);
  margin-bottom: 22px;
  animation: fadeUp 0.55s ease-out 0.1s both;
}
.hero h1 em { font-style: normal; color: var(--orange); }
.hero-sub {
  font-size: 17px; color: var(--ink-2); line-height: 1.7;
  margin-bottom: 40px; max-width: 440px;
  animation: fadeUp 0.55s ease-out 0.2s both;
}
.hero-btns  { display: flex; gap: 12px; flex-wrap: wrap; animation: fadeUp 0.55s ease-out 0.3s both; }
.hero-visual { overflow: hidden; background: #1a1a1a; animation: fadeIn 0.9s ease-out 0.05s both; }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; opacity: 0.92; }

/* ===== TRUST ===== */
.trust { border-bottom: 1px solid var(--border); background: var(--bg); }
.trust-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.trust-item {
  padding: 32px 36px;
  border-right: 1px solid var(--border);
  position: relative;
}
.trust-item::before {
  content: ''; position: absolute; top: 0; left: 36px;
  width: 30px; height: 3px;
  background: var(--orange); border-radius: 0 0 3px 3px;
}
.trust-item:last-child { border-right: none; }
.trust-t { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 7px; line-height: 1.3; margin-top: 14px; }
.trust-d { font-size: 13px; color: var(--ink-2); line-height: 1.6; }

/* ===== ABOUT ===== */
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-text h2 { font-size: 34px; font-weight: 700; color: var(--ink); margin-bottom: 20px; line-height: 1.25; }
.about-text p { font-size: 15px; color: var(--ink-2); line-height: 1.78; margin-bottom: 16px; }
.about-list { margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.about-list-item { padding: 12px 16px; border-left: 3px solid var(--orange); background: var(--bg-warm); border-radius: 0 var(--radius) var(--radius) 0; }
.about-list-item strong { display: block; font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 3px; }
.about-list-item span { font-size: 13px; color: var(--ink-2); line-height: 1.5; }
.about-img { border-radius: 12px; overflow: hidden; aspect-ratio: 4/3; box-shadow: 0 16px 56px rgba(0,0,0,0.13); }
.about-img img { width: 100%; height: 100%; object-fit: cover; }

/* ===== PRODUCTS (CATEGORIES) ===== */
.cat-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.cat-card {
  background: var(--bg); display: flex; flex-direction: column;
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.cat-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,0.10); }
.cat-card-img { aspect-ratio: 4/3; overflow: hidden; background: #eeebe6; }
.cat-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.cat-card:hover .cat-card-img img { transform: scale(1.04); }
.cat-card-body { padding: 24px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.cat-card-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.9px; color: var(--orange); margin-bottom: 7px; }
.cat-card-title { font-size: 19px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.cat-card-desc { font-size: 14px; color: var(--ink-2); line-height: 1.68; flex: 1; margin-bottom: 22px; }
.cat-card-links { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; }

/* ===== SOLUTIONS ===== */
.sol-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.sol-card {
  background: var(--bg); padding: 28px 28px 28px 30px;
  border-radius: 10px; border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transition: border-left-color 0.2s ease, box-shadow 0.2s ease;
}
.sol-card:hover { border-left-color: var(--orange); box-shadow: 0 6px 24px rgba(0,0,0,0.08); }
.sol-title { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.sol-desc  { font-size: 13px; color: var(--ink-2); line-height: 1.62; }

/* ===== KITS ===== */
.kits-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.kit-card {
  border: 1px solid var(--border); border-radius: 12px;
  padding: 36px 32px; background: var(--bg);
  display: flex; flex-direction: column; gap: 14px;
  border-top: 3px solid var(--orange);
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}
.kit-card:hover { box-shadow: 0 10px 32px rgba(0,0,0,0.09); transform: translateY(-3px); }
.kit-tag {
  display: inline-block; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--green); background: rgba(30,105,64,0.08);
  padding: 4px 10px; border-radius: 20px; align-self: flex-start;
}
.kit-title { font-size: 20px; font-weight: 700; color: var(--ink); }
.kit-desc  { font-size: 14px; color: var(--ink-2); line-height: 1.7; flex: 1; }
.kit-note  { font-size: 12px; color: var(--ink-3); font-style: italic; border-top: 1px solid var(--border); padding-top: 14px; }

/* ===== HOW WE WORK ===== */
.steps-h {
  display: grid; grid-template-columns: repeat(5,1fr);
  gap: 0; position: relative;
  margin-top: 8px;
}
.steps-h::before {
  content: ''; position: absolute; top: 23px; left: 10%; right: 10%;
  height: 2px; background: var(--border); z-index: 0;
}
.step-h { text-align: center; position: relative; z-index: 1; padding: 0 16px; }
.step-num-h {
  width: 48px; height: 48px; background: var(--orange); color: #fff;
  border-radius: 50%; font-size: 18px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; border: 3px solid #fff; outline: 2px solid var(--border);
}
.step-t { font-size: 14px; font-weight: 700; color: var(--ink); margin-bottom: 7px; line-height: 1.3; }
.step-d { font-size: 13px; color: var(--ink-2); line-height: 1.55; }

/* ===== WHY US ===== */
.why-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.why-card {
  padding: 26px 28px; border: 1px solid var(--border); border-radius: 10px;
  border-left: 3px solid var(--orange); background: var(--bg);
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.why-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,0.08); transform: translateY(-2px); }
.why-title { font-size: 15px; font-weight: 700; color: var(--ink); margin-bottom: 7px; }
.why-desc  { font-size: 14px; color: var(--ink-2); line-height: 1.6; }

/* ===== CTA SECTION ===== */
.cta-section { background: var(--orange); padding: 96px 0; text-align: center; }
.cta-section h2 { font-size: 36px; font-weight: 700; color: #fff; margin-bottom: 16px; line-height: 1.22; }
.cta-section p {
  font-size: 17px; color: rgba(255,255,255,0.88);
  margin-bottom: 40px; max-width: 520px; margin-left: auto; margin-right: auto; line-height: 1.7;
}
.cta-phone { display: block; font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 32px; }
.cta-phone:hover { color: rgba(255,255,255,0.8); }
.cta-btns { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ===== CONTACTS ===== */
.contacts-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-card { background: var(--ink); color: #fff; border-radius: 12px; padding: 44px; }
.contact-card h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 32px; }
.c-items { display: flex; flex-direction: column; }
.c-item { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,0.09); }
.c-item:last-child { border-bottom: none; padding-bottom: 0; }
.c-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; color: rgba(255,255,255,0.45); margin-bottom: 5px; }
.c-val { font-size: 15px; font-weight: 600; color: #fff; line-height: 1.5; }
.c-val a { color: #fff; transition: color 0.15s; }
.c-val a:hover { color: var(--orange); }

/* ===== FORM ===== */
.contact-form { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 44px; }
.contact-form h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 28px; }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; color: var(--ink-2); margin-bottom: 7px; }
.form-input, .form-textarea {
  width: 100%; padding: 13px 16px;
  border: 1.5px solid var(--border); border-radius: var(--radius);
  font-family: Arial, sans-serif; font-size: 14px; color: var(--ink);
  background: var(--bg-warm); outline: none; transition: border-color 0.15s, background 0.15s;
}
.form-input:focus, .form-textarea:focus { border-color: var(--orange); background: #fff; }
.form-textarea { min-height: 108px; resize: vertical; }
.form-submit { width: 100%; margin-top: 6px; padding: 15px; font-size: 15px; }
.form-success {
  display: none; background: rgba(30,105,64,0.08);
  border: 1px solid rgba(30,105,64,0.3); border-radius: var(--radius);
  padding: 20px; color: var(--green); font-size: 15px; font-weight: 600; text-align: center;
}

/* ===== FOOTER ===== */
.footer { background: #111; color: rgba(255,255,255,0.6); padding: 72px 0 32px; }
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 56px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { font-size: 17px; font-weight: 700; color: #fff; display: block; margin-bottom: 14px; }
.footer-logo span { color: var(--orange); }
.footer-desc { font-size: 13px; line-height: 1.7; color: rgba(255,255,255,0.45); max-width: 280px; }
.footer-col h4 { font-size: 11px; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: 0.7px; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.5); padding: 4px 0; transition: color 0.15s; }
.footer-col a:hover { color: #fff; }
.f-contact { font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 8px; line-height: 1.45; }
.f-contact a { color: rgba(255,255,255,0.5); transition: color 0.15s; }
.f-contact a:hover { color: #fff; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; font-size: 12px; flex-wrap: wrap; gap: 10px;
  color: rgba(255,255,255,0.35);
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 12px; color: rgba(255,255,255,0.35); transition: color 0.15s; }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.7); }

/* ===== PRODUCT PAGES ===== */
.page-hero { background: var(--ink); color: #fff; padding: 64px 0 56px; }
.page-hero h1 { font-size: 36px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.65); max-width: 580px; line-height: 1.7; }
.catalog-section { padding: 72px 0 96px; background: var(--bg-warm); }
.catalog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.catalog-card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: box-shadow 0.22s ease, transform 0.22s ease, border-color 0.22s;
}
.catalog-card:hover { border-color: var(--orange); box-shadow: 0 10px 28px rgba(0,0,0,0.10); transform: translateY(-3px); }
.catalog-card-img {
  aspect-ratio: 4/3; background: #f5f3ef; padding: 24px;
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--border);
}
.catalog-card-img img { width: 100%; height: 100%; object-fit: contain; }
.catalog-card-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.catalog-card-name { font-size: 14px; font-weight: 700; color: var(--ink); line-height: 1.4; }
.catalog-card-desc { font-size: 13px; color: var(--ink-2); line-height: 1.6; flex: 1; }
.spec-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.spec-tag {
  font-size: 11px; font-weight: 700; color: var(--ink-2);
  background: var(--bg-warm); border: 1px solid var(--border);
  padding: 3px 9px; border-radius: 4px; white-space: nowrap;
}

/* ===== LEGAL ===== */
.legal-section { padding: 72px 0 96px; }
.legal-content { max-width: 760px; }
.legal-content h2 { font-size: 22px; font-weight: 700; color: var(--ink); margin: 32px 0 12px; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p { font-size: 15px; color: var(--ink-2); line-height: 1.75; margin-bottom: 14px; }
.legal-content ul { list-style: disc; padding-left: 22px; margin-bottom: 14px; }
.legal-content ul li { font-size: 15px; color: var(--ink-2); line-height: 1.7; margin-bottom: 6px; }

/* ===== BREADCRUMB ===== */
.breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; font-size: 13px; color: rgba(255,255,255,0.45); }
.breadcrumb a { color: rgba(255,255,255,0.6); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { opacity: 0.4; }

/* ===== RESPONSIVE 1024px ===== */
@media (max-width: 1024px) {
  .container { padding: 0 28px; }
  /* burger on tablet */
  .nav, .header-cta { display: none; }
  .burger { display: flex; }
  .hero h1 { font-size: 40px; }
  .hero-content { padding: 72px 48px 72px 0; }
  .s-title { font-size: 30px; }
  .trust-grid { grid-template-columns: repeat(2,1fr); }
  .trust-item:nth-child(2) { border-right: none; }
  .trust-item:nth-child(1),
  .trust-item:nth-child(2) { border-bottom: 1px solid var(--border); }
  .about-inner { gap: 48px; }
  .cat-grid { grid-template-columns: repeat(2,1fr); }
  .sol-grid { grid-template-columns: repeat(2,1fr); }
  .kits-grid { grid-template-columns: repeat(2,1fr); }
  .why-grid { grid-template-columns: repeat(2,1fr); }
  .contacts-inner { gap: 32px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-top > div:first-child { grid-column: 1/-1; }
  .steps-h { grid-template-columns: 1fr; gap: 28px; }
  .steps-h::before { display: none; }
  .step-h { text-align: left; display: flex; gap: 18px; align-items: flex-start; }
  .step-num-h { margin: 0; flex-shrink: 0; }
  .catalog-grid { grid-template-columns: repeat(2,1fr); }
}

/* ===== RESPONSIVE 768px ===== */
@media (max-width: 768px) {
  .top-bar { display: none; }
  .header { padding: 14px 0; }
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .s-title { font-size: 26px; }
  .s-sub { font-size: 15px; margin-bottom: 40px; }
  .hero-inner { grid-template-columns: 1fr; min-height: auto; }
  .hero-content { padding: 56px 0 48px; border-right: none; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 15px; margin-bottom: 32px; }
  .hero-visual { aspect-ratio: 16/7; max-height: 240px; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .cat-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .sol-grid { grid-template-columns: 1fr; }
  .kits-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .contacts-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-top > div:first-child { grid-column: auto; }
  .footer-desc { max-width: 100%; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }
  .cta-section { padding: 72px 0; }
  .cta-section h2 { font-size: 28px; }
  .page-hero { padding: 48px 0 40px; }
  .page-hero h1 { font-size: 28px; }
  .catalog-section { padding: 56px 0 72px; }
  .catalog-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .contact-card { padding: 32px 28px; }
  .contact-form { padding: 32px 28px; }
}

/* ===== RESPONSIVE 480px ===== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 52px 0; }
  .hero-content { padding: 44px 0 40px; }
  .hero h1 { font-size: 28px; }
  .hero-btns { flex-direction: column; }
  .hero-btns .btn { width: 100%; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { border-right: none; border-bottom: 1px solid var(--border); }
  .trust-item:last-child { border-bottom: none; }
  .cat-grid { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: 1fr; }
  .kits-grid { gap: 20px; }
  .why-grid { gap: 16px; }
  .cta-section { padding: 56px 0; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn { width: 100%; max-width: 300px; }
  .contact-card { padding: 24px 20px; }
  .contact-form { padding: 24px 20px; }
  .page-hero { padding: 40px 0 32px; }
}