:root {
  --primary:#16a34a;
  --primary-dark:#15803d;
  --bg:#ffffff;
  --text:#1e293b;
}

* {
  box-sizing:border-box;
}

body {
  margin:0;
  font-family:'Segoe UI', sans-serif;
  background:var(--bg);
  color:var(--text);
}

/* LANGUAGE */
.lang {
  position:absolute;
  top:20px;
  right:20px;
}

.lang button {
  border:none;
  padding:8px 12px;
  margin-left:5px;
  cursor:pointer;
  border-radius:6px;
}

.lang button:hover {
  background:var(--primary);
  color:white;
}

/* HEADER */
header {
  text-align:center;
  padding:100px 20px;
}

.logo img {
  max-width:260px;
}

h1 {
  margin-top:25px;
}

/* CARDS – NE DIRAM IKONE */
.cards {
  max-width:1100px;
  margin:auto;
  display:grid;
  grid-template-columns:1fr;
  gap:30px;
  padding:20px;
}

.card {
  background:white;
  padding:40px;
  border-radius:20px;
  text-align:center;
  cursor:pointer;
  transition:0.4s;
  box-shadow:0 15px 40px rgba(0,0,0,0.08);
  border-top:5px solid var(--primary);
}

.card:hover {
  transform:translateY(-10px);
  box-shadow:0 30px 70px rgba(0,0,0,0.15);
}

.card-icon {
  width:50px;
  margin-bottom:15px;
  transition: transform 0.3s;
}

.card:hover .card-icon {
  transform: scale(1.2);
}

/* OVERLAY – ISPRAVNO */
.overlay {
  display:none;
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:100%;
  background:white;
  padding:40px 20px;
  overflow-y:auto;
  text-align:center;
}

.overlay.active {
  display:block;
}

/* IKONE U OVERLAY – CENTAR */
.overlay-icon {
  width:100px;
  display:block;
  margin:0 auto 20px auto;
}

/* TEXT */
.overlay h2 {
  font-size:24px;
}

.overlay p {
  max-width:500px;
  margin:0 auto;
  line-height:1.6;
}

/* BUTTON */
button.main {
  margin-top:20px;
  padding:12px 20px;
  border:none;
  background:var(--primary);
  color:white;
  border-radius:8px;
  cursor:pointer;
}

button.main:hover {
  background:var(--primary-dark);
}

/* FOOTER */
footer {
  background:#111;
  color:white;
  text-align:center;
  padding:30px;
}

footer a {
  color:var(--primary);
  margin:0 10px;
  text-decoration:none;
}

/* DESKTOP */
@media(min-width:800px){
  .cards {
    grid-template-columns:repeat(3,1fr);
  }
}

/* MOBILE */
@media(max-width:600px){

  .overlay {
    padding:30px 15px;
  }

  .overlay h2 {
    font-size:20px;
  }

  .overlay p {
    font-size:14px;
    text-align:left;
    padding:0 10px;
  }

  .lang {
    top:10px;
    right:10px;
  }

}