:root {
  --primary: #1447e6;
  --primary-dark: #0f2fb0;
  --dark: #0b1220;
  --gray-900: #111827;
  --gray-700: #374151;
  --gray-500: #6b7280;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --light: #ffffff;
  --radius: 10px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--gray-900);
  background: var(--light);
  line-height: 1.6;
}

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site-header {
  position: sticky;
  top: 0;
  background: var(--light);
  border-bottom: 1px solid var(--gray-200);
  z-index: 100;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1140px;
  margin: 0 auto;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
}

.logo span { color: var(--primary); }

nav.main-nav ul {
  display: flex;
  gap: 32px;
}

nav.main-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--gray-700);
  transition: color 0.2s;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--primary);
}

.menu-toggle { display: none; }

.hero {
  background: linear-gradient(135deg, var(--dark) 0%, #16213e 100%);
  color: var(--light);
  padding: 100px 24px;
}

.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.2rem;
  color: #cbd5e1;
  max-width: 640px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.2s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--light);
  color: var(--light);
}

.btn-outline:hover { background: var(--light); color: var(--dark); }

.btn-row { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

section { padding: 80px 24px; }

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-title p {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto;
}

.bg-light { background: var(--gray-100); }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--light);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover { box-shadow: 0 12px 28px rgba(15,23,42,0.08); transform: translateY(-4px); }

.card .icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(20,71,230,0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 18px;
}

.card h3 { font-size: 1.2rem; margin-bottom: 10px; font-weight: 700; }
.card p { color: var(--gray-500); font-size: 0.98rem; }

.service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--gray-200);
}

.service-block:last-child { border-bottom: none; }

.service-block h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--dark);
}

.service-block p { color: var(--gray-500); margin-bottom: 18px; }

.service-block ul li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--gray-700);
}

.service-block ul li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

.service-visual {
  background: var(--gray-100);
  border-radius: var(--radius);
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary);
  font-weight: 800;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stats .stat h3 { font-size: 2.2rem; color: var(--primary); font-weight: 800; }
.stats .stat p { color: var(--gray-500); font-size: 0.95rem; margin-top: 6px; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.two-col h2 { font-size: 2rem; font-weight: 800; margin-bottom: 18px; color: var(--dark); }
.two-col p { color: var(--gray-500); margin-bottom: 16px; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.portfolio-thumb {
  height: 170px;
  background: linear-gradient(135deg, var(--primary), var(--dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
}

.portfolio-body { padding: 20px; }
.portfolio-body h3 { font-size: 1.1rem; margin-bottom: 8px; }
.portfolio-body p { color: var(--gray-500); font-size: 0.92rem; }
.tag {
  display: inline-block;
  background: var(--gray-100);
  color: var(--gray-700);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  margin-top: 10px;
}

.cta {
  background: var(--primary);
  color: #fff;
  text-align: center;
  padding: 70px 24px;
}
.cta h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.cta p { color: #dbeafe; margin-bottom: 28px; font-size: 1.05rem; }

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact-info h3 { font-size: 1.3rem; margin-bottom: 8px; font-weight: 700; }
.contact-info p { color: var(--gray-500); margin-bottom: 24px; }
.contact-item { margin-bottom: 22px; }
.contact-item strong { display: block; color: var(--dark); margin-bottom: 4px; }

form .field { margin-bottom: 18px; }
form label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.92rem; }
form input, form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}
form textarea { resize: vertical; min-height: 120px; }

footer.site-footer {
  background: var(--dark);
  color: #cbd5e1;
  padding: 56px 24px 24px;
}

.footer-grid {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid #263049;
}

.footer-grid h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.footer-grid ul li { margin-bottom: 10px; font-size: 0.92rem; }
.footer-grid ul li a:hover { color: #fff; }
.footer-brand p { font-size: 0.92rem; color: #94a3b8; margin-top: 12px; }

.footer-bottom {
  max-width: 1140px;
  margin: 0 auto;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}

@media (max-width: 860px) {
  nav.main-nav ul { display: none; }
  .grid, .portfolio-grid { grid-template-columns: 1fr 1fr; }
  .service-block, .two-col, .contact-wrap { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 2.1rem; }
}

@media (max-width: 560px) {
  .grid, .portfolio-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}