*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family:Arial, sans-serif;
}

body{
  background:#0b0f19;
  color:white;
  line-height:1.6;
}

header{
  background:#111827;
  padding:20px 8%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  position:sticky;
  top:0;
}

.logo{
  font-size:28px;
  font-weight:bold;
  color:#00bfff;
}

nav a{
  color:white;
  text-decoration:none;
  margin-left:20px;
  transition:0.3s;
}

nav a:hover{
  color:#00bfff;
}

.hero{
  height:100vh;

  display:flex;
  justify-content:center;
  align-items:center;

  text-align:center;

  background:
  linear-gradient(rgba(0,0,0,0.6),
  rgba(0,0,0,0.6)),

  url("images/tech-office.jpg");

  background-size:cover;
  background-position:center;

  padding:20px;
}

/* GALLERY */

.gallery{
  display:grid;

  grid-template-columns:
  repeat(auto-fit, minmax(250px,1fr));

  gap:20px;
}

.gallery img{
  width:100%;
  height:250px;

  object-fit:cover;

  border-radius:15px;

  transition:0.3s;
}

.gallery img:hover{
  transform:scale(1.03);
}

.hero-content h1{
  font-size:60px;
  margin-bottom:20px;
}

.hero-content span{
  color:#00bfff;
}

.hero-content p{
  max-width:700px;
  margin:auto;
  font-size:18px;
  margin-bottom:30px;
}

.btn{
  display:inline-block;
  padding:14px 30px;
  background:#00bfff;
  color:white;
  text-decoration:none;
  border-radius:8px;
  transition:0.3s;
}

.btn:hover{
  background:#009acd;
}

section{
  padding:80px 8%;
}

.section-title{
  text-align:center;
  font-size:40px;
  margin-bottom:50px;
  color:#00bfff;
}

.about{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:40px;
  align-items:center;
}

.about img{
  width:100%;
  border-radius:15px;
}

.about-text p{
  margin-bottom:20px;
}

.services{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:25px;
}

.card{
  background:#111827;
  padding:30px;
  border-radius:15px;
  transition:0.3s;
}

.card:hover{
  transform:translateY(-10px);
}

.card h3{
  color:#00bfff;
  margin-bottom:15px;
}

.contact-form{
  max-width:700px;
  margin:auto;
  background:#111827;
  padding:40px;
  border-radius:15px;
}

.contact-form input,
.contact-form textarea{
  width:100%;
  padding:15px;
  margin-bottom:20px;
  border:none;
  border-radius:8px;
  background:#1f2937;
  color:white;
}

.contact-form button{
  width:100%;
  padding:15px;
  border:none;
  background:#00bfff;
  color:white;
  font-size:16px;
  border-radius:8px;
  cursor:pointer;
  transition:0.3s;
}

.contact-form button:hover{
  background:#009acd;
}

footer{
  background:#111827;
  text-align:center;
  padding:20px;
  margin-top:50px;
}

@media(max-width:768px)

  .hero-content h1{
    font-size:40px;
  }

  nav{
    display:none;
  }

  /* TESTIMONIALS */

.testimonials{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));
  gap:25px;
}

.testimonial-card{
  background:#111827;
  padding:30px;
  border-radius:15px;
  transition:0.3s;
  border:1px solid rgba(255,255,255,0.05);
}

.testimonial-card:hover{
  transform:translateY(-10px);
}

.testimonial-card p{
  margin-bottom:20px;
  color:#d1d5db;
}

.testimonial-card h3{
  color:#00bfff;
}

/* WHATSAPP CHAT BUBBLE */

.chat-bubble{
  position:fixed;
  bottom:25px;
  right:25px;

  width:55px;
  height:55px;

  background:#25D366;
  border-radius:50%;

  display:flex;
  justify-content:center;
  align-items:center;

  text-decoration:none;

  z-index:1000;

  box-shadow:0 5px 15px rgba(0,0,0,0.25);

  transition:0.3s;
}

.chat-bubble:hover{
  transform:scale(1.1);
}

/* WHATSAPP ICON */

.chat-bubble img{
  width:24px;
  height:24px;

  position:relative;
  z-index:2;
}

/* PULSE RING */

.pulse-ring{
  position:absolute;

  width:100%;
  height:100%;

  border-radius:50%;

  background:rgba(37,211,102,0.5);

  animation:pulse-animation 2s infinite;

  z-index:1;
}

/* ANIMATION */

@keyframes pulse-animation{

  0%{
    transform:scale(1);
    opacity:0.7;
  }

  70%{
    transform:scale(1.6);
    opacity:0;
  }

  100%{
    transform:scale(1.6);
    opacity:0;
  }