* {margin: 0; padding: 0; box-sizing: border-box;}
body {
  font-family: 'Segoe UI', sans-serif;
  background: #0b2538;
  color: #e0f7f1;
  scroll-behavior: smooth;
}
a {color: #66ffcc; text-decoration: none;}
a:hover {text-decoration: underline;}

header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  background: #042f4a;
  padding: 15px 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 8px rgba(0, 255, 204, 0.3);
  z-index: 1000;
}
header h1 {font-weight: 700; font-size: 1.8rem; color: #66ffcc;}
.slogan {
  font-size: 1rem;
  color: #00ffc3;
  margin-top: 5px;
  text-shadow: 0 0 5px #00ffc3;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
  margin-top: 10px;
}
nav ul li a {
  font-weight: 600;
  padding: 8px 15px;
  border-radius: 6px;
  transition: background-color 0.3s ease, color 0.3s ease;
}
nav ul li a.active, nav ul li a:hover {
  background-color: #66ffcc;
  color: #042f4a;
}

main {padding-top: 120px;}
section {
  min-height: 100vh;
  padding: 60px 20px;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  scroll-margin-top: 120px;
}
section h2 {
  font-size: 2.8rem;
  color: #66ffcc;
  margin-bottom: 20px;
  text-shadow: 0 0 8px #66ffcc;
}
section p {
  font-size: 1.2rem;
  max-width: 700px;
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.6;
}

.grid {
  display: grid;
  gap: 20px;
  width: 100%;
}
@media(min-width: 768px) {.grid {grid-template-columns: repeat(2, 1fr);}}
@media(min-width: 1024px) {.grid {grid-template-columns: repeat(3, 1fr);}}

.card {
  background: #04475e;
  padding: 25px 20px;
  border-radius: 15px;
  box-shadow: 0 0 15px #33ffccaa;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 30px #33ffcc;
}
.card h3 {
  color: #aaffdd;
  font-size: 1.4rem;
  margin-bottom: 10px;
}
.card p {
  font-size: 1rem;
  color: #ccf7ee;
}

section#why h2 {
  color: #00ffaa;
  text-shadow: 0 0 10px #00ffaa;
}
section#why .card {
  background: #045f6e;
  box-shadow: 0 0 20px #00ffaa80;
}

.contact-info {
  font-size: 1.1rem;
  line-height: 1.6;
  text-align: center;
  max-width: 500px;
}
.contact-info a {
  font-weight: 700;
  color: #66ffcc;
}

footer {
  text-align: center;
  padding: 20px 10px;
  background: #022533;
  color: #66ffccaa;
  font-size: 1rem;
  margin-top: 40px;
}

@media (max-width: 600px) {
  header {flex-direction: column; gap: 10px;}
  nav ul {flex-wrap: wrap; justify-content: center;}
}