:root {
  --bg-color: #0d0f12;
  --card-bg: #14171d;
  --border-color: rgba(255, 255, 255, 0.08);
  --primary-color: #00dfc3;
  --primary-hover: #00dfc3;
  --text-main: #f3f4f6;
  --text-muted: #8a8f98;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

picture {
  display: block;
  width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(13, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 8px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-phone a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid var(--border-color);
  padding: 10px 22px;
  border-radius: 30px;
  transition: var(--transition);
}

.header-phone a:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1010;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

.section {
  padding: 120px 0 100px 0;
  border-bottom: 1px solid var(--border-color);
}

.grid-container {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
}

.section-badge {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-color);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: monospace;
  padding-top: 8px;
}

.section-hero-image {
  width: 100%;
  margin-bottom: 32px;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.about-img,
.advantages-img {
  width: 100%;
  height: auto;
  max-height: 450px;
  object-fit: cover;
  display: block;
}

.hero-title {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.section-text {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 800px;
  margin-bottom: 32px;
}

.stats-row {
  display: flex;
  gap: 48px;
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
  margin-top: 40px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 30px;
  border-radius: 12px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.15);
}

.product-card-picture {
  display: block;
  width: 100%;
  margin-bottom: 20px;
}

.product-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  display: block;
}

.product-size {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-color);
  background-color: rgba(139, 230, 44, 0.1);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.product-name {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.product-desc {
  font-size: 15px;
  color: var(--text-muted);
}

.contact-form {
  max-width: 600px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: 8px;
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 15px;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

textarea.form-input {
  resize: vertical;
}

.submit-btn {
  background-color: var(--primary-color);
  color: #0d0f12;
  border: none;
  padding: 16px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.submit-btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.form-success-msg {
  margin-top: 16px;
  color: var(--primary-color);
  font-weight: 500;
  font-size: 15px;
}

.footer {
  background-color: #07080a;
  padding: 80px 0 40px 0;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand .logo-img {
  height: 36px;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 14px;
  max-width: 320px;
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--text-main);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 15px;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--text-main);
  padding-left: 4px;
}

.footer-phone a {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  transition: var(--transition);
}

.footer-phone a:hover {
  color: var(--primary-color);
}

.footer-socials {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.footer-socials a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-socials a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

@media (max-width: 992px) {
  .grid-container {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .section-badge {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
  }
}

@media (max-width: 768px) {
  .header-container {
    height: 70px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--bg-color);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 36px;
    transition: var(--transition);
    border-top: 1px solid var(--border-color);
  }

  .nav.active {
    left: 0;
  }

  .nav-link {
    font-size: 20px;
  }

  .header-phone {
    display: none;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-title {
    font-size: 32px;
  }

  .section-title {
    font-size: 28px;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .product-card-img {
    height: 180px;
  }
}