/*
Theme Name: TopoCLEAN Starter
Theme URI: https://topoclean.ru
Author: TopoCLEAN
Description: Мягкий, открыточный сайт-каталог бренда TopoCLEAN — товары для дома.
Version: 2.1.0
Text Domain: topoclean
*/

:root {
  --tc-cream: #FDF8F3;
  --tc-warm: #FFF6ED;
  --tc-peach: #FFE8D6;
  --tc-blue: #5B9BD5;
  --tc-blue-dark: #3A7BBF;
  --tc-blue-soft: #E8F2FC;
  --tc-mint: #A8D8C8;
  --tc-mint-soft: #E6F5EF;
  --tc-coral: #F4845F;
  --tc-dark: #2C3E50;
  --tc-text: #4A5568;
  --tc-text-light: #8896A6;
  --tc-white: #FFFFFF;
  --tc-border: #EDE8E3;
  --tc-shadow-sm: 0 2px 8px rgba(44,62,80,.05);
  --tc-shadow: 0 4px 20px rgba(44,62,80,.08);
  --tc-shadow-lg: 0 12px 40px rgba(44,62,80,.12);
  --tc-shadow-hover: 0 8px 30px rgba(91,155,213,.18);
  --tc-radius: 20px;
  --tc-radius-sm: 12px;
  --tc-radius-xs: 8px;
  --tc-transition: .35s cubic-bezier(.4,0,.2,1);
  --tc-font: 'Nunito', system-ui, sans-serif;
  --tc-font-display: 'Manrope', 'Nunito', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--tc-font);
  color: var(--tc-text);
  background: var(--tc-cream);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--tc-blue); text-decoration: none; transition: color var(--tc-transition); }
a:hover { color: var(--tc-blue-dark); }

/* ===== Layout ===== */
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title {
  font-family: var(--tc-font-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 42px);
  color: var(--tc-dark);
  margin-bottom: 12px;
  line-height: 1.2;
}
.section-subtitle {
  color: var(--tc-text-light);
  font-size: 18px;
  max-width: 560px;
  margin-bottom: 40px;
}
.section-subtitle.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-title.center { text-align: center; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  font-family: var(--tc-font);
  font-weight: 700;
  font-size: 15px;
  transition: all var(--tc-transition);
  text-decoration: none;
  line-height: 1.2;
}
.btn-primary {
  background: linear-gradient(135deg, var(--tc-blue), var(--tc-blue-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(91,155,213,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(91,155,213,.45);
  color: #fff;
}
.btn-ozon {
  background: linear-gradient(135deg, #005BFF, #003CBB);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0,91,255,.3);
}
.btn-ozon:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0,91,255,.4);
  color: #fff;
}
.btn-soft {
  background: var(--tc-blue-soft);
  color: var(--tc-blue);
}
.btn-soft:hover {
  background: var(--tc-blue);
  color: #fff;
  transform: translateY(-2px);
}
.btn-coral {
  background: linear-gradient(135deg, var(--tc-coral), #E8734F);
  color: #fff;
  box-shadow: 0 4px 15px rgba(244,132,95,.3);
}
.btn-coral:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(244,132,95,.4);
  color: #fff;
}
.btn-white {
  background: #fff;
  color: var(--tc-dark);
  box-shadow: var(--tc-shadow);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--tc-shadow-lg);
}
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 18px 36px; font-size: 17px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
  border-bottom: 1px solid var(--tc-border);
  transition: box-shadow var(--tc-transition);
}
.site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,.06); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 16px;
}
.logo img { height: 40px; width: auto; }
.header-nav { display: flex; align-items: center; gap: 8px; }
.header-nav a {
  padding: 8px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  color: var(--tc-text);
  transition: all var(--tc-transition);
}
.header-nav a:hover { background: var(--tc-blue-soft); color: var(--tc-blue); }
.header-nav .btn { margin-left: 4px; }
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--tc-dark);
  margin: 6px 0;
  border-radius: 2px;
  transition: all .3s;
}

/* ===== Hero ===== */
.hero {
  padding: 60px 0 80px;
  background: linear-gradient(170deg, var(--tc-warm) 0%, var(--tc-cream) 50%, var(--tc-blue-soft) 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(91,155,213,.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(168,216,200,.1) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--tc-white);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: var(--tc-blue);
  box-shadow: var(--tc-shadow-sm);
  margin-bottom: 20px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--tc-mint);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.3); }
}
.hero h1 {
  font-family: var(--tc-font-display);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  color: var(--tc-dark);
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero h1 span { color: var(--tc-blue); }
.hero-desc {
  font-size: 18px;
  color: var(--tc-text);
  margin-bottom: 32px;
  max-width: 480px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--tc-border);
}
.hero-stat-num {
  font-family: var(--tc-font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--tc-dark);
}
.hero-stat-label { font-size: 13px; color: var(--tc-text-light); margin-top: 4px; }
.hero-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image-main {
  width: 100%;
  max-width: 500px;
  border-radius: 30px;
  box-shadow: var(--tc-shadow-lg);
  object-fit: cover;
}
.hero-float {
  position: absolute;
  background: var(--tc-white);
  border-radius: var(--tc-radius);
  padding: 14px 18px;
  box-shadow: var(--tc-shadow);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 14px;
  animation: float 4s ease-in-out infinite;
}
.hero-float.top-right { top: 20px; right: -10px; }
.hero-float.bottom-left { bottom: 30px; left: -20px; animation-delay: -2s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ===== Categories ===== */
.categories { background: var(--tc-white); }
.cat-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.cat-card {
  background: var(--tc-cream);
  border-radius: var(--tc-radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--tc-transition);
  cursor: pointer;
  text-decoration: none;
  color: var(--tc-text);
  border: 2px solid transparent;
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tc-shadow-hover);
  border-color: var(--tc-blue);
  color: var(--tc-blue);
}
.cat-card .cat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 14px;
  background: var(--tc-blue-soft);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tc-blue);
  transition: all var(--tc-transition);
}
.cat-card:hover .cat-icon { background: var(--tc-blue); color: #fff; }
.cat-card .cat-name { font-weight: 700; font-size: 15px; }
.cat-card .cat-count { font-size: 13px; color: var(--tc-text-light); margin-top: 4px; }

/* ===== Product Grid ===== */
.products-section { background: var(--tc-cream); }
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.filter-btn {
  padding: 10px 20px;
  border-radius: 50px;
  border: 2px solid var(--tc-border);
  background: var(--tc-white);
  cursor: pointer;
  font-family: var(--tc-font);
  font-weight: 600;
  font-size: 14px;
  color: var(--tc-text);
  transition: all var(--tc-transition);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--tc-blue);
  background: var(--tc-blue);
  color: #fff;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--tc-white);
  border-radius: var(--tc-radius);
  overflow: hidden;
  box-shadow: var(--tc-shadow-sm);
  transition: all var(--tc-transition);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--tc-border);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--tc-shadow-hover);
  border-color: transparent;
}
.product-card-img {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--tc-cream);
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 16px;
  transition: transform var(--tc-transition);
}
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--tc-coral);
  color: #fff;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
}
.product-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.product-card-cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--tc-blue);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 8px;
}
.product-card-title {
  font-weight: 700;
  font-size: 16px;
  color: var(--tc-dark);
  line-height: 1.4;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card-title a { color: inherit; }
.product-card-title a:hover { color: var(--tc-blue); }
.product-card-actions {
  margin-top: auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== Hits Slider ===== */
.hits-section {
  background: linear-gradient(170deg, var(--tc-blue-soft) 0%, var(--tc-white) 100%);
}
.hits-slider .swiper-slide {
  height: auto;
}
.hits-slider .product-card {
  height: 100%;
  margin: 4px;
}
.swiper-button-prev,
.swiper-button-next {
  width: 48px !important;
  height: 48px !important;
  background: var(--tc-white);
  border-radius: 50%;
  box-shadow: var(--tc-shadow);
  color: var(--tc-dark) !important;
}
.swiper-button-prev::after,
.swiper-button-next::after { font-size: 18px !important; font-weight: 700; }
.swiper-pagination-bullet { width: 10px; height: 10px; background: var(--tc-border); opacity: 1; }
.swiper-pagination-bullet-active { background: var(--tc-blue); width: 28px; border-radius: 5px; }

/* ===== Features ===== */
.features-section { background: var(--tc-white); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--tc-cream);
  border-radius: var(--tc-radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--tc-transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--tc-shadow);
}
.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}
.feature-icon.eco { background: var(--tc-mint-soft); }
.feature-icon.warehouse { background: #FFF3E0; }
.feature-icon.delivery { background: var(--tc-blue-soft); }
.feature-icon.wholesale { background: #FCE4EC; }
.feature-title { font-weight: 700; font-size: 17px; color: var(--tc-dark); margin-bottom: 8px; }
.feature-text { font-size: 14px; color: var(--tc-text-light); line-height: 1.6; }

/* ===== About ===== */
.about-section {
  background: linear-gradient(170deg, var(--tc-cream) 0%, var(--tc-warm) 100%);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-text { font-size: 17px; line-height: 1.8; }
.about-text p + p { margin-top: 16px; }
.about-counters {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.counter-card {
  background: var(--tc-white);
  border-radius: var(--tc-radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--tc-shadow-sm);
}
.counter-num {
  font-family: var(--tc-font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--tc-blue);
}
.counter-label { font-size: 14px; color: var(--tc-text-light); margin-top: 4px; }

/* ===== B2B Section ===== */
.b2b-section {
  background: linear-gradient(135deg, var(--tc-dark) 0%, #1A2A3A 100%);
  color: #fff;
}
.b2b-section .section-title { color: #fff; }
.b2b-section .section-subtitle { color: rgba(255,255,255,.6); }
.b2b-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.b2b-benefits { list-style: none; }
.b2b-benefits li {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  align-items: flex-start;
}
.b2b-benefits li .icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(91,155,213,.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.b2b-benefits li strong { display: block; font-size: 16px; color: #fff; }
.b2b-benefits li span { font-size: 14px; color: rgba(255,255,255,.5); }
.b2b-form {
  background: rgba(255,255,255,.06);
  border-radius: var(--tc-radius);
  padding: 36px;
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(10px);
}
.b2b-form .form-row {
  display: grid;
  gap: 14px;
}
.b2b-form input,
.b2b-form textarea,
.b2b-form select {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--tc-radius-sm);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: #fff;
  font-family: var(--tc-font);
  font-size: 15px;
  transition: border-color var(--tc-transition);
}
.b2b-form input::placeholder,
.b2b-form textarea::placeholder { color: rgba(255,255,255,.35); }
.b2b-form input:focus,
.b2b-form textarea:focus,
.b2b-form select:focus {
  outline: none;
  border-color: var(--tc-blue);
  background: rgba(255,255,255,.1);
}
.b2b-form select option { background: var(--tc-dark); color: #fff; }
.b2b-form .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success.show { display: block; }
.form-success .check {
  width: 64px;
  height: 64px;
  background: var(--tc-mint);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 28px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--tc-dark);
  color: rgba(255,255,255,.5);
  padding: 48px 0 24px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-top: 12px;
  max-width: 280px;
}
.footer-col-title {
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 16px;
}
.footer-links { list-style: none; }
.footer-links li + li { margin-top: 10px; }
.footer-links a { color: rgba(255,255,255,.5); font-size: 14px; }
.footer-links a:hover { color: var(--tc-blue); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 13px;
}

/* ===== Single Product Landing ===== */
.product-hero {
  padding: 40px 0 60px;
  background: linear-gradient(170deg, var(--tc-warm) 0%, var(--tc-cream) 100%);
}
.product-hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.product-gallery { position: relative; }
.product-gallery-main {
  border-radius: var(--tc-radius);
  overflow: hidden;
  background: var(--tc-white);
  box-shadow: var(--tc-shadow);
  aspect-ratio: 1/1;
}
.product-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
}
.product-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.product-thumb {
  width: 64px;
  height: 64px;
  min-width: 64px;
  border-radius: var(--tc-radius-xs);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid var(--tc-border);
  transition: all var(--tc-transition);
  background: var(--tc-white);
}
.product-thumb:hover,
.product-thumb.active { border-color: var(--tc-blue); }
.product-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.product-info { position: sticky; top: 80px; }
.product-brand {
  font-size: 13px;
  font-weight: 700;
  color: var(--tc-blue);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.product-info h1 {
  font-family: var(--tc-font-display);
  font-size: clamp(24px, 3vw, 36px);
  color: var(--tc-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}
.product-info .sku { font-size: 13px; color: var(--tc-text-light); margin-bottom: 20px; }
.product-info .desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--tc-text);
  margin-bottom: 28px;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-info .desc.expanded {
  -webkit-line-clamp: unset;
}
.read-more-btn {
  background: none;
  border: none;
  color: var(--tc-blue);
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  margin-bottom: 24px;
}
.product-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.product-specs {
  background: var(--tc-cream);
  border-radius: var(--tc-radius);
  padding: 24px;
}
.product-specs h3 { font-size: 16px; color: var(--tc-dark); margin-bottom: 14px; }
.specs-list { list-style: none; }
.specs-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--tc-border);
  font-size: 14px;
}
.specs-list li:last-child { border-bottom: none; }
.specs-list .label { color: var(--tc-text-light); }
.specs-list .value { font-weight: 600; color: var(--tc-dark); }

/* Product Description Section */
.product-desc-section { background: var(--tc-white); }
.product-full-desc {
  max-width: 800px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.9;
}

/* Kit Contents */
.kit-section { background: var(--tc-cream); }
.kit-box {
  background: var(--tc-white);
  border-radius: var(--tc-radius);
  padding: 36px;
  box-shadow: var(--tc-shadow-sm);
  max-width: 800px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.8;
}

/* Rich Content Gallery */
.rich-gallery { background: var(--tc-white); }
.rich-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}
.rich-card {
  border-radius: var(--tc-radius);
  overflow: hidden;
  box-shadow: var(--tc-shadow-sm);
  transition: all var(--tc-transition);
}
.rich-card:hover { transform: translateY(-4px); box-shadow: var(--tc-shadow); }
.rich-card img { width: 100%; display: block; }
.rich-card-text { padding: 20px; }
.rich-card-text h3 { font-size: 17px; color: var(--tc-dark); margin-bottom: 8px; }
.rich-card-text p { font-size: 14px; color: var(--tc-text-light); line-height: 1.6; }

/* Related Products */
.related-section { background: var(--tc-cream); }

/* ===== Scroll Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-image { order: -1; }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .b2b-grid { grid-template-columns: 1fr; }
  .product-hero-inner { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 52px 0; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .header-nav a:not(.btn) { display: none; }
  .mobile-toggle { display: block; }
  .header-nav.open {
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--tc-shadow-lg);
    border-radius: 0 0 var(--tc-radius) var(--tc-radius);
  }
  .header-nav.open a { display: block; text-align: center; padding: 14px; }
  .b2b-form .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}