*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: 'Inter', system-ui, sans-serif; color: #1a1a2e; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; }

:root {
  --navy: #1a3060;
  --navy-dark: #0f2050;
  --navy-light: #24458a;
  --red: #be2132;
  --red-light: #e84055;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-track { animation: marquee 30s linear infinite; }
.partner-track:hover { animation-play-state: paused; }

.product-track { animation: marquee 70s linear infinite; will-change: transform; }
.product-track:hover { animation-play-state: paused; }

.prod-fade-l { position:absolute;left:0;top:0;bottom:0;width:120px;background:linear-gradient(to right,#f7f9fc,transparent);z-index:1;pointer-events:none; }
.prod-fade-r { position:absolute;right:0;top:0;bottom:0;width:120px;background:linear-gradient(to left,#f7f9fc,transparent);z-index:1;pointer-events:none; }

.nav-link { font-size: 15px; font-weight: 500; color: #374151; transition: color 0.2s; }
.nav-link:hover { color: var(--navy); }

.product-card { background: #fff; border-radius: 18px; padding: 32px 26px; border: 1.5px solid #e5e7eb; transition: all 0.25s ease; display: block; max-width: 260px; flex-shrink: 0; }
.product-card:hover { border-color: var(--navy); transform: translateY(-5px); box-shadow: 0 16px 48px rgba(26,48,96,0.13); }

.why-card { background: #fff; border-radius: 18px; padding: 36px 28px; border: 1.5px solid #f0f2f5; transition: all 0.2s; }
.why-card:hover { box-shadow: 0 8px 32px rgba(26,48,96,0.1); border-color: #dde2ef; }

.faq-btn { width: 100%; padding: 22px 24px; display: flex; justify-content: space-between; align-items: center; background: none; border: none; text-align: left; font-size: 16px; font-weight: 600; color: #1a1a2e; font-family: 'Inter', system-ui, sans-serif; gap: 16px; }
.faq-content { overflow: hidden; max-height: 0; transition: max-height 0.38s ease; }
.faq-content.open { max-height: 320px; }
.chevron { transition: transform 0.35s ease; flex-shrink: 0; }
.chevron.open { transform: rotate(180deg); }

.input-field { width: 100%; padding: 14px 16px; border: 1.5px solid #d1d5db; border-radius: 10px; font-size: 15px; font-family: 'Inter', system-ui, sans-serif; outline: none; transition: border-color 0.2s; background: #fff; color: #1a1a2e; }
.input-field:focus { border-color: var(--navy); box-shadow: 0 0 0 3px rgba(26,48,96,0.1); }
select.input-field { color: #374151; }

.about-grid  { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.why-grid    { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stats-grid  { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
.test-grid   { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

@media (max-width: 1024px) {
  .why-grid     { grid-template-columns: repeat(2, 1fr); }
  .about-grid   { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .floating-stat { display: none !important; }
}
@media (max-width: 768px) {
  .desktop-only    { display: none !important; }
  .mobile-menu-btn { display: flex !important; }
  .test-grid  { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .product-track { animation-duration: 40s; }
  .prod-fade-l, .prod-fade-r { width: 40px; }
  .product-card { max-width: 220px; padding: 24px 18px; }
  .footer-cols { grid-template-columns: 1fr 1fr !important; gap: 32px !important; }
}

@media (max-width: 480px) {
  .footer-cols { grid-template-columns: 1fr !important; gap: 28px !important; }
}
@media (min-width: 769px) {
  .mobile-menu-btn { display: none !important; }
}