:root {
  --primary-blue: #1462b3;
  --primary-blue-dark: #0d4178;
  --primary-blue-light: #e9f3fd;
  --text-dark: #222933;
  --text-medium: #526075;
  --accent: #04b4d9;
  --section-bg: #f7fafd;
}
body,
html {
  font-family: "Roboto", Arial, sans-serif;
  background: #fff;
  color: var(--text-dark);
  scroll-behavior: smooth;
}

/* Navbar */
.navbar {
  background: #fff;
  box-shadow: 0 2px 16px 0 rgba(20, 98, 179, 0.04);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}
.navbar-brand {
  color: var(--primary-blue) !important;
  letter-spacing: 0.5px;
}
.nav-link {
  color: var(--text-dark) !important;
  font-weight: 500;
  margin-right: 0.5rem;
  transition: color 0.2s;
}
.nav-link.active,
.nav-link:hover,
.nav-link:focus {
  color: var(--primary-blue) !important;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(110deg, var(--primary-blue-light) 60%, #fff 100%);
  padding: 72px 0 60px 0;
}
.hero-title {
  font-size: 2.7rem;
  font-weight: 700;
  color: var(--primary-blue-dark);
  letter-spacing: 0.5px;
}
.hero-desc {
  font-size: 1.15rem;
  color: var(--text-medium);
  max-width: 600px;
  margin: 0 auto 28px auto;
}
.hero-btn {
  font-size: 1.1rem;
  padding: 0.75rem 2.5rem;
  border-radius: 30px;
  background: var(--primary-blue);
  color: #fff;
  font-weight: 700;
  border: none;
  transition: background 0.18s;
}
.hero-btn:hover,
.hero-btn:focus {
  background: var(--primary-blue-dark);
  color: #fff;
}
.hero-img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 8px 24px 0 rgba(20, 98, 179, 0.07);
}

/* Section Titles and Descriptions */
.section-title {
  font-size: 2rem;
  color: var(--primary-blue);
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}
.section-desc {
  color: var(--text-medium);
  font-size: 1.09rem;
  margin-bottom: 32px;
  max-width: 680px;
}
.about-section,
.why-section {
  background: var(--section-bg);
  padding: 56px 0 48px 0;
}
.about-img,
.why-img,
.contact-img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px 0 rgba(4, 180, 217, 0.07);
}

/* Services */
.services-section {
  background: #fff;
  padding: 56px 0 48px 0;
}
.service-card {
  background: #fff;
  border: 1px solid #e6edf4;
  border-radius: 14px;
  box-shadow: 0 2px 12px 0 rgba(20, 98, 179, 0.04);
  padding: 34px 20px 28px 20px;
  min-height: 315px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.service-card:hover {
  box-shadow: 0 4px 28px 0 rgba(4, 180, 217, 0.12);
  transform: translateY(-6px) scale(1.025);
}
.service-title {
  font-size: 1.13rem;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 12px;
}
.service-desc {
  color: var(--text-medium);
  font-size: 1rem;
}
.service-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 12px;
  object-fit: contain;
}

/* Why Us */
.why-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}
.why-list li {
  display: flex;
  align-items: flex-start;
  font-size: 1.07rem;
  color: var(--text-medium);
  margin-bottom: 20px;
}
.why-dot {
  width: 11px;
  height: 11px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 16px;
  margin-top: 7px;
  flex-shrink: 0;
}
.why-strong {
  color: var(--primary-blue-dark);
  font-weight: 600;
  margin-right: 4px;
}

/* Contact */
.contact-section {
  background: #fff;
  padding: 54px 0 36px 0;
}
.contact-card {
  background: #f7fafd;
  border: 1px solid #e6edf4;
  border-radius: 18px;
  box-shadow: 0 2px 16px 0 rgba(20, 98, 179, 0.04);
  padding: 36px 30px 22px 30px;
  margin-top: 8px;
  max-width: 480px;
}
.contact-card h5 {
  font-weight: 700;
  color: var(--primary-blue-dark);
  margin-bottom: 8px;
}
.contact-link {
  color: var(--primary-blue);
  text-decoration: none;
  font-weight: 500;
}
.contact-link:hover {
  color: var(--primary-blue-dark);
  text-decoration: underline;
}
.contact-img {
  max-width: 380px;
}

/* Footer */
.footer {
  background: #fff;
  border-top: 1px solid #e6edf4;
  color: #77829e;
  font-size: 1rem;
  padding: 22px 0 14px 0;
  text-align: center;
  letter-spacing: 0.1px;
}

/* Responsive */
@media (max-width: 991.98px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .about-section,
  .why-section,
  .services-section,
  .contact-section {
    padding: 38px 0 26px 0;
  }
  .service-card {
    min-height: 0;
  }
}
@media (max-width: 767.98px) {
  .navbar {
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
  }
  .hero-section {
    padding: 36px 0 18px 0;
  }
  .section-title {
    font-size: 1.25rem;
  }
  .hero-title {
    font-size: 1.5rem;
  }
  .contact-img {
    max-width: 220px;
  }
  .about-img,
  .why-img {
    max-width: 320px;
  }
}
@media (max-width: 575.98px) {
  .service-card {
    padding: 22px 8px 10px 8px;
  }
}