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

:root {
  --color-navy:    #0A2540;
  --color-blue:    #1B4F8A;
  --color-cyan:    #00D4FF;
  --color-white:   #F4F8FF;
  --color-gray:    #6B7A99;
  --color-gray-lt: #E8EDF5;
  --color-dark:    #071830;

  --font-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-body:    'Inter', 'Segoe UI', system-ui, sans-serif;

  --radius: 6px;
  --max-w: 1140px;
  --section-pad: 80px 20px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-navy);
  background-color: var(--color-white);
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 12px;
}

h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.25rem; }

p { color: var(--color-gray); line-height: 1.7; }

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  letter-spacing: 0.03em;
}
.btn-primary {
  background-color: var(--color-cyan);
  color: var(--color-navy);
}
.btn-primary:hover { background-color: #00bde8; }
.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-cyan);
  color: var(--color-cyan);
}
.btn-outline:hover { background-color: var(--color-cyan); color: var(--color-navy); }

.site-header {
  background-color: var(--color-navy);
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(0,212,255,0.15);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-brand img.logo-icon { width: 40px; height: 40px; }
.brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.01em;
}
.brand-name span { color: var(--color-cyan); }

.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(244,248,255,0.75);
}
.site-nav a:hover { color: var(--color-cyan); }
.site-nav .btn { padding: 8px 20px; font-size: 13px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
}

.hero {
  background-color: var(--color-dark);
  color: var(--color-white);
  padding: 100px 20px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    rgba(0,212,255,0.03) 0px,
    rgba(0,212,255,0.03) 1px,
    transparent 1px,
    transparent 60px
  ),
  repeating-linear-gradient(
    180deg,
    rgba(0,212,255,0.03) 0px,
    rgba(0,212,255,0.03) 1px,
    transparent 1px,
    transparent 60px
  );
  pointer-events: none;
}
.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-content h1 { color: var(--color-white); margin-bottom: 20px; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.2; }
.hero-content p { color: rgba(244,248,255,0.75); font-size: 1.05rem; margin-bottom: 32px; max-width: 480px; line-height: 1.7; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-photo {
  border-radius: 8px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-navy) 100%);
  
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}
.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-photo .placeholder-img {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-blue) 0%, #0d3567 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.placeholder-img svg { opacity: 0.25; }

.stats-bar {
  background-color: var(--color-navy);
  padding: 40px 20px;
}
.stats-bar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item { }
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-cyan);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: 13px; color: rgba(244,248,255,0.6); text-transform: uppercase; letter-spacing: 0.08em; }

.services {
  padding: var(--section-pad);
  background-color: var(--color-white);
  text-align: center;
}

.services .section-header {
  margin: 0 auto 60px;
  max-width: 640px;
}
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 { color: var(--color-navy); margin-bottom: 12px; }
.section-header p { max-width: 560px; margin: 0 auto; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 1140px;
  margin: 0 auto;
}
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-lt);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.service-card:hover { border-color: var(--color-cyan); }
.service-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(0,212,255,0.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.service-icon svg { width: 24px; height: 24px; color: var(--color-cyan); }
.service-card h3 { color: var(--color-navy); margin-bottom: 10px; }

.about-brief {
  padding: var(--section-pad);
  background-color: var(--color-gray-lt);
  text-align: center;
}

.about-brief-inner {
  max-width: 1140px;
  margin: 0 auto;
}
.about-brief-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-photo {
  border-radius: var(--radius);
  overflow: hidden;
  
  height: 100%;
  background: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-photo .placeholder-img { height: 100%; }
.about-text .section-label { }
.about-text h2 { color: var(--color-navy); margin-bottom: 16px; }
.about-text p { margin-bottom: 16px; }
.about-text p:last-of-type { margin-bottom: 28px; }

.how-it-works {
  padding: var(--section-pad);
  background-color: var(--color-white);
  text-align: center;
}

.how-it-works .section-header {
  margin: 0 auto 60px;
  max-width: 640px;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}
.step-card { text-align: center; padding: 28px 20px; }
.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-navy);
  color: var(--color-cyan);
  font-weight: 800;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.step-card h3 { color: var(--color-navy); margin-bottom: 10px; }

.products {
  padding: var(--section-pad);
  background-color: #071830;
  text-align: center;
}

.products .section-header {
  margin: 0 auto 60px;
  max-width: 640px;
}
.products .section-header h2 { color: var(--color-white); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}
.product-card {
  background: rgba(27,79,138,0.35);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: var(--radius);
  overflow: hidden;
}
.product-thumb {
  aspect-ratio: 16/9;
  background: rgba(10,37,64,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-thumb .placeholder-img {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(27,79,138,0.6) 0%, rgba(0,212,255,0.08) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-body { padding: 24px; }
.product-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 8px;
}
.product-card h3 { color: var(--color-white); margin-bottom: 10px; font-size: 1.1rem; }
.product-card p { color: rgba(244,248,255,0.65); font-size: 14px; margin-bottom: 16px; }
.product-price { color: var(--color-cyan); font-size: 1rem; font-weight: 700; margin-bottom: 20px; }
.product-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.product-actions .btn { font-size: 13px; padding: 10px 18px; }

.why-us {
  padding: var(--section-pad);
  background-color: var(--color-white);
  text-align: center;
}

.why-us-inner {
  max-width: 960px;
  margin: 0 auto;
}
.why-us-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.why-photo {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3/4;
  background: var(--color-navy);
}
.why-photo .placeholder-img { height: 100%; }
.why-list { display: flex; flex-direction: column; gap: 24px; }
.why-item { display: flex; gap: 16px; align-items: flex-start; }
.why-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background-color: var(--color-navy);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}
.why-icon svg { color: var(--color-cyan); width: 22px; height: 22px; }
.why-item h4 { color: var(--color-navy); margin-bottom: 4px; }

.testimonials {
  padding: var(--section-pad);
  background-color: #071830;
  text-align: center;
}

.testimonials .section-header {
  margin: 0 auto 60px;
  max-width: 640px;
}
.testimonials .section-header h2 { color: var(--color-white); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}
.testimonial-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,212,255,0.15);
  border-radius: var(--radius);
  padding: 28px;
}
.testimonial-quote { font-size: 15px; color: rgba(244,248,255,0.8); line-height: 1.7; margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-blue);
  overflow: hidden;
  flex-shrink: 0;
}
.author-avatar .placeholder-img { height: 100%; }
.author-info strong { display: block; color: var(--color-white); font-size: 14px; }
.author-info span { font-size: 12px; color: rgba(244,248,255,0.5); }

.blog {
  padding: var(--section-pad);
  background-color: var(--color-white);
  text-align: center;
}

.blog .section-header {
  margin: 0 auto 60px;
  max-width: 640px;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}
.blog-card {
  border: 1px solid var(--color-gray-lt);
  border-radius: var(--radius);
  overflow: hidden;
}
.blog-card:hover { border-color: var(--color-cyan); }
.blog-thumb {
  aspect-ratio: 16/9;
  background: var(--color-gray-lt);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.blog-thumb .placeholder-img {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-gray-lt) 0%, #cdd6e8 100%);
}
.blog-body { padding: 20px; }
.blog-cat {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.blog-card h3 { font-size: 1.05rem; color: var(--color-navy); margin-bottom: 8px; }
.blog-card p { font-size: 14px; margin-bottom: 14px; }
.blog-date { font-size: 12px; color: var(--color-gray); }

.contacts {
  padding: var(--section-pad);
  background-color: var(--color-dark);
  color: var(--color-white);
}
.contacts .section-header h2 { color: var(--color-white); }
.contacts .section-header p { color: rgba(244,248,255,0.65); }
.contacts-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.contacts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 0;
}
.contact-card {
  background: rgba(27,79,138,0.25);
  border: 1px solid rgba(0,212,255,0.18);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}
.contact-icon {
  width: 56px;
  height: 56px;
  background-color: rgba(0,212,255,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.contact-icon svg { color: var(--color-cyan); width: 26px; height: 26px; }
.contact-card h4 { color: var(--color-white); margin-bottom: 8px; }
.contact-card a, .contact-card p { color: rgba(244,248,255,0.7); font-size: 15px; }
.contact-card a:hover { color: var(--color-cyan); }

.site-footer {
  background-color: #050F1E;
  padding: 56px 20px 0;
  color: rgba(244,248,255,0.6);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.footer-brand { }
.footer-brand .header-brand { margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.footer-brand p { font-size: 14px; max-width: 280px; line-height: 1.6; }
.footer-col h5 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: rgba(244,248,255,0.55); display: inline-block; }
.footer-col ul li a:hover { color: var(--color-cyan); }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-bottom p { font-size: 13px; }
.footer-legal { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-legal a { font-size: 13px; color: rgba(244,248,255,0.45); }
.footer-legal a:hover { color: var(--color-cyan); }

@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-photo { max-width: 560px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .about-brief-inner { grid-template-columns: 1fr; }
  .why-us-inner { grid-template-columns: 1fr; }
  .why-photo { aspect-ratio: 16/9; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .contacts-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-navy);
    padding: 20px;
    gap: 16px;
    border-top: 1px solid rgba(0,212,255,0.15);
  }
  .nav-toggle { display: flex; }
  .site-header { position: relative; }
  .services-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .contacts-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .steps-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-legal { flex-direction: column; align-items: center; }
  .stats-bar-inner { grid-template-columns: repeat(2, 1fr); }
}

.hero-photo img,
.about-photo img,
.product-thumb img,
.product-card img,
.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}