:root {
  --primary: #1762a7;
  --accent: #2ec2fa;
  --background: #f6fafd;
  --radius: 12px;
  --shadow: 0 4px 16px rgba(50,140,255,0.09);
}

body {
  margin: 0;
  background: var(--background);
  font-family: 'Inter', Arial, sans-serif;
  color: #21262a;
}
.container {
  width: 92%;
  max-width: 1080px;
  margin: auto;
}
header {
  background: #fff;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 95;
  padding: 0.8rem 0;
}
.nav-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--primary);
}
.logo span { color: #222; }
nav {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}
nav a {
  color: #253245;
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--radius);
  padding: 0.4rem 0.8rem;
  transition: background 0.17s;
}
nav a:hover { background: #e6f7ff; }
.btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.44rem 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background 0.22s, transform 0.16s;
}
.install-btn {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
  margin-left: 1rem;
}
.install-btn:hover {
  background: var(--primary);
  color: #fff;
}
.main-btn:hover {
  background: var(--accent);
  transform: translateY(-3px) scale(1.05);
}
.hero {
  background: linear-gradient(100deg, #d3edfa 48%, #fff 100%);
  padding: 3rem 0 2rem 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 2.6rem;
}
.hero-content {
  animation: fadeInUp 1.08s;
}
.hero-content h1 {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--primary);
}
.hero-content p {
  font-size: 1.12rem;
  margin-bottom: 1.3rem;
  color: #2b3947;
}
.hero-image img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.about h2, .services h2, .testimonials h2, .contact h2 {
  font-size: 1.55rem;
  margin-bottom: 1.12rem;
  color: var(--primary);
  text-align: center;
}
.about p {
  max-width: 700px;
  margin: 0 auto;
  font-size: 1.07rem;
  text-align: center;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
  gap: 1.6rem;
  margin-top: 2.2rem;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.45rem;
  text-align: center;
  transition: transform 0.19s;
  animation: fadeInUp 1.2s;
}
.service-card:hover {
  transform: translateY(-7px) scale(1.04);
}
.testimonials-grid {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.testimonial {
  background: #effaff;
  border-radius: var(--radius);
  padding: 1.2rem 1.3rem 1rem 1.3rem;
  box-shadow: var(--shadow);
  flex: 1 1 230px;
  max-width: 320px;
  animation: fadeIn 1.65s;
}
.testimonial p {
  font-style: italic;
  margin-bottom: 1.15rem;
}
.testimonial span {
  color: #4977b6;
  font-size: 1rem;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  max-width: 410px;
  margin: 2.4rem auto 0 auto;
  animation: fadeIn 1.4s;
}
.contact-form input, .contact-form textarea {
  padding: 0.85rem 1.1rem;
  font-size: 1rem;
  border-radius: var(--radius);
  border: 1.3px solid #d3eafc;
  background: #fff;
  transition: border-color 0.19s;
}
.contact-form input:focus, .contact-form textarea:focus {
  border-color: var(--primary);
  outline: none;
}
footer {
  background: #f0f6fa;
  padding: 0.85rem 0;
  font-size: 1rem;
  color: #617388;
  border-top: 1px solid #d7e8f6;
}
.footer-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-flex nav a {
  color: #414963;
  margin-left: 1.1rem;
  text-decoration: none;
  font-weight: 600;
}
.footer-flex nav a:hover {
  color: var(--primary);
}

/* Smooth Animations */
.section-anim {
  opacity: 0;
  transform: translateY(50px);
  animation: fadeInUp 1.35s forwards;
  animation-delay: 0.11s;
}
@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0);}
}
@keyframes fadeIn {
  from{ opacity:0;} to{ opacity:1;}
}

/* Responsive */
@media (max-width:900px){
  .hero-grid {grid-template-columns:1fr;gap:2rem;}
  .hero-image {order:-1;}
  .footer-flex {flex-direction:column;gap:0.7rem;}
}
@media (max-width:600px){
  .nav-flex, nav {flex-direction:column;gap:0.7rem;}
  .container {width:98%;}
  .hero-content, .hero-image {max-width:100%;text-align:center;}
  .testimonials-grid {flex-direction:column;align-items:center;}
  .hero-content h1 {font-size:1.3rem;}
}