:root {
  --primary: #0b3b75;
  --secondary: #0f766e;
  --accent: #f59e0b;
  --dark: #111827;
  --muted: #6b7280;
  --light: #f8fafc;
  --white: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", Arial, sans-serif;
  color: var(--dark);
  background: var(--white);
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  min-height: 100vh;
  background:
    linear-gradient(120deg, rgba(11, 59, 117, 0.96), rgba(15, 118, 110, 0.88)),
    radial-gradient(circle at 20% 20%, rgba(245, 158, 11, 0.28), transparent 35%),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  color: var(--white);
}

.navbar {
  width: min(1180px, 92%);
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--accent);
  color: #111827;
  font-weight: 800;
}

.brand small {
  display: block;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 26px;
  font-weight: 600;
}

.nav-links a:hover {
  color: #fde68a;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--white);
  margin: 5px 0;
  border-radius: 8px;
}

.hero {
  width: min(1180px, 92%);
  margin: 0 auto;
  padding: 110px 0 80px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: #fbbf24;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  font-size: 13px;
  margin-bottom: 12px;
}

h1 {
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.05;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.15;
  margin-bottom: 18px;
}

h3 {
  margin-bottom: 12px;
}

.hero-text {
  font-size: 19px;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.86);
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 14px 24px;
  background: var(--accent);
  color: #111827;
  font-weight: 800;
  cursor: pointer;
  transition: 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.16);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.5);
}

.btn-small {
  padding: 10px 18px;
}

.hero-card {
  padding: 34px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 28px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.card-icon {
  font-size: 46px;
  margin-bottom: 18px;
}

.hero-card p {
  color: rgba(255,255,255,0.82);
}

.stats {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stats div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.13);
}

.stats strong,
.stats span {
  display: block;
}

.stats strong {
  font-size: 24px;
}

.stats span {
  font-size: 12px;
  color: rgba(255,255,255,0.75);
}

.section {
  padding: 90px 0;
  width: min(1180px, 92%);
  margin: 0 auto;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 38px;
}

.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: stretch;
}

.about-grid p {
  color: var(--muted);
  margin-bottom: 18px;
}

.mission-box,
.why-panel {
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.service-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 8px 22px rgba(15,23,42,0.06);
  transition: 0.25s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.service-card span {
  display: inline-grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: #e0f2fe;
  font-size: 26px;
  margin-bottom: 18px;
}

.service-card p {
  color: var(--muted);
}

.why-us {
  width: 100%;
  padding-left: max(4%, calc((100% - 1180px) / 2));
  padding-right: max(4%, calc((100% - 1180px) / 2));
  background: var(--primary);
  color: var(--white);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: center;
}

.why-content p {
  color: rgba(255,255,255,0.78);
  margin-bottom: 20px;
}

.check-list {
  list-style: none;
  display: grid;
  gap: 12px;
}

.check-list li {
  padding-left: 32px;
  position: relative;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #fbbf24;
  font-weight: 900;
}

.why-panel {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
}

.why-panel p {
  color: rgba(255,255,255,0.8);
}

.project-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--light);
  border: 1px solid var(--border);
  border-radius: 28px;
  overflow: hidden;
}

.project-strip div {
  padding: 32px;
  border-right: 1px solid var(--border);
}

.project-strip div:last-child {
  border-right: 0;
}

.project-strip p {
  color: var(--muted);
}

.contact-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  padding: 42px;
  border-radius: 30px;
  background: var(--light);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.contact-list a {
  color: var(--primary);
  font-weight: 700;
}

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  font: inherit;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.12);
}

.form-note {
  color: var(--secondary);
  font-weight: 700;
}

.footer {
  background: #081225;
  color: rgba(255,255,255,0.75);
  padding: 28px 4%;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer a {
  color: #fbbf24;
  font-weight: 700;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 82px;
    right: 4%;
    left: 4%;
    display: none;
    flex-direction: column;
    padding: 24px;
    border-radius: 22px;
    background: #0b3b75;
    box-shadow: var(--shadow);
    z-index: 20;
  }

  .nav-links.show {
    display: flex;
  }

  .hero,
  .about-grid,
  .why-us,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .project-strip {
    grid-template-columns: 1fr;
  }

  .project-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .project-strip div:last-child {
    border-bottom: 0;
  }

  .hero {
    padding-top: 70px;
  }

  .section {
    padding: 70px 0;
  }
}

@media (max-width: 520px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .contact-card {
    padding: 26px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}