* {
  box-sizing: border-box;
}
:root {
  color-scheme: light;
  font-family: 'Cairo', sans-serif;
  --bg: #f8f8fb;
  --surface: #ffffff;
  --primary: #1f4e79;
  --primary-soft: #2f6ba2;
  --accent: #f9b233;
  --text: #222533;
  --muted: #556070;
  --border: #e5e8ee;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top right, rgba(31,78,121,0.12), transparent 34%), var(--bg);
  color: var(--text);
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
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(255,255,255,0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(34,37,51,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}
.brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.site-nav a {
  color: var(--muted);
  font-weight: 500;
}
.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  color: var(--primary);
  cursor: pointer;
}
.hero {
  padding: 4rem 0 3rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 2rem;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--accent);
  font-weight: 700;
}
.hero h1 {
  margin: 0;
  font-size: clamp(2.5rem, 4vw, 4rem);
  line-height: 1.02;
}
.hero p {
  max-width: 34rem;
  margin: 1.5rem 0 0;
  line-height: 1.75;
  color: var(--muted);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 18px 45px rgba(31,78,121,0.12);
}
.btn-secondary {
  background: rgba(31,78,121,0.08);
  color: var(--primary);
}
.section {
  padding: 4rem 0;
}
.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section-label {
  display: inline-flex;
  margin-bottom: 0.75rem;
  color: var(--accent);
  font-weight: 700;
}
.section h2 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 2.75rem);
  line-height: 1.1;
}
.services-grid,
.projects-grid,
.contact-grid,
.about-grid {
  display: grid;
  gap: 1.5rem;
}
.services-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
  min-height: 220px;
}
.service-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}
.projects-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.project-card {
  background: var(--surface);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 18px 45px rgba(34,37,51,0.05);
}
.project-card img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}
.project-card h3 {
  margin: 1rem 1rem 0.5rem;
}
.project-card p {
  margin: 0 1rem 1.5rem;
  color: var(--muted);
}
.about-grid {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}
.about-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.75rem;
}
.about-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--muted);
}
.about-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
}
.about-highlight {
  display: grid;
  gap: 1rem;
}
.highlight-card {
  background: var(--primary);
  color: #fff;
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: 0 22px 60px rgba(31,78,121,0.14);
}
.highlight-card strong {
  display: block;
  font-size: 2.5rem;
}
.highlight-card span {
  color: rgba(255,255,255,0.85);
}
.contact-grid {
  grid-template-columns: 1fr 1.2fr;
}
.contact-card,
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
}
.contact-card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}
.contact-card p {
  margin: 0.65rem 0;
  color: var(--muted);
}
.contact-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0.95rem 1rem;
  margin-bottom: 1rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary-soft);
  box-shadow: 0 0 0 4px rgba(47,107,162,0.12);
}
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid rgba(34,37,51,0.08);
  background: #fff;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-inner p {
  margin: 0;
  color: var(--muted);
}
@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .contact-grid,
  .services-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 3rem;
  }
}
@media (max-width: 720px) {
  .header-inner {
    flex-wrap: wrap;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    display: none;
    gap: 1rem;
    margin-top: 1rem;
  }
  .site-nav.open {
    display: flex;
  }
  .section {
    padding: 3rem 0;
  }
}