:root {
  color-scheme: light;
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #1f2937;
  background: #f7fafc;
  --bg: #ffffff;
  --surface: #f9fafb;
  --text: #111827;
  --muted: #4b5563;
  --primary: #10b981;
  --primary-dark: #047857;
  --border: #e5e7eb;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
}

img {
  max-width: 100%;
  display: block;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  position: relative;
}

.brand {
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 100px;
  border: 1px solid rgba(16, 185, 129, 0.25);
  background: #ffffff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  display: block;
  width: 1.2rem;
  height: 2px;
  background: #111827;
  border-radius: 999px;
  transition: transform 0.25s ease;
}

.nav-toggle span::before {
  transform: translateY(-6px);
}

.nav-toggle span::after {
  transform: translateY(4px);
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
}

.nav-menu a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.nav-menu.nav-open {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  padding: 1.25rem 1rem;
  margin-top: 0.75rem;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(229, 231, 235, 0.9);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--text);
  border-color: var(--border);
}

.nav-cta {
  white-space: nowrap;
}

.hero {
  padding: 5rem 0 4rem;
}

.hero-grid,
.about-grid,
.advantages-grid,
.contact-grid {
  display: grid;
  gap: 2rem;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
  align-items: center;
}

.hero-copy .eyebrow,
.section-heading span {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--primary);
  font-weight: 700;
}

.hero-copy h1,
.section-heading h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(2rem, 2.8vw, 3.5rem);
  line-height: 1.03;
  letter-spacing: -0.04em;
}

.hero-copy p,
.section-heading p,
.advantage-item p,
.contact-section p,
.about-grid p,
.contact-intro p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 58ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-card {
  display: flex;
  justify-content: flex-end;
}

.product-card {
  width: 100%;
  padding: 2rem;
  border-radius: 2rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid rgba(16, 185, 129, 0.15);
  box-shadow: var(--shadow);
}

.product-card .tag {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.12);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.95rem;
}

.product-card h2 {
  margin: 0 0 1rem;
  font-size: 1.75rem;
}

.product-card p {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.product-specs {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.product-specs li {
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: #f1f5f9;
  color: var(--text);
}

.trust-bar {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

.trust-bar span {
  color: var(--text);
  font-weight: 600;
}

.trust-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.trust-logos span {
  padding: 0.65rem 1rem;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  padding: 4rem 0;
}

.bg-light {
  background: #f8fafc;
}

.section-heading {
  margin-bottom: 2.5rem;
}

.cards-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.solution-card,
.faq-card {
  border-radius: 1.5rem;
  background: var(--bg);
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

..feature-card h3,
.solution-card h3,
.faq-card h3 {
  margin-top: 0;
}

.feature-card img.card-image {
  width: 100%;
  border-radius: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.certificate-grid,
.case-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.icon-card,
.case-card {
  border-radius: 1.5rem;
  padding: 2rem;
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
  text-align: center;
}

.icon-card img,
.case-card img {
  width: 72px;
  height: auto;
  margin-bottom: 1rem;
}

.icon-card h3,
.case-card h3 {
  margin-top: 0;
}

.advantages-grid {
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
}

.advantages-list {
  display: grid;
  gap: 1rem;
}

.advantage-item {
  padding: 1.5rem;
  border-radius: 1.5rem;
  background: #ffffff;
  border: 1px solid var(--border);
}

.advantage-item strong {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
}

.about-grid {
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-stats {
  display: grid;
  gap: 1rem;
}

.stat-card {
  padding: 1.75rem;
  border-radius: 1.5rem;
  background: #ffffff;
  border: 1px solid var(--border);
}

.stat-card strong {
  display: block;
  font-size: 2rem;
  color: var(--primary-dark);
}

.stat-card p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.solutions-grid,
.faq-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-section {
  padding-bottom: 5rem;
}

.contact-grid {
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.contact-intro {
  display: grid;
  gap: 1.5rem;
}

.contact-info {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: 1.5rem;
  background: #ffffff;
  border: 1px solid var(--border);
}

.contact-info strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.95rem;
  background: #ffffff;
}

.contact-form textarea {
  min-height: 10rem;
  resize: vertical;
}

.site-footer {
  padding: 1.75rem 0 2rem;
  background: #111827;
  color: #e5e7eb;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

@media (max-width: 900px) {
  .hero-grid,
  .advantages-grid,
  .about-grid,
  .contact-grid,
  .solutions-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .nav-menu {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-cta {
    display: none;
  }
}

@media (max-width: 720px) {
  .btn {
    width: 100%;
  }

  .hero {
    padding-top: 3rem;
  }
}