/* ===========================
   GLOBAL STYLES
=========================== */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(to bottom right, #f5f6fa, #dfe6e9);
  color: #2c3e50;
  scroll-behavior: smooth;
}

/* ANIMATIONS */
@keyframes fadeIn {
  from {opacity: 0; transform: translateY(20px);}
  to {opacity: 1; transform: translateY(0);}
}

@keyframes shadow-pop-tr {
  0% {box-shadow: 0 0 #0000;}
  100% {box-shadow: 3px -3px 10px rgba(0,0,0,0.3);}
}

/* ===========================
   NAVBAR
=========================== */
.navbar {
  background: url('/images/tlo/Protermika\ DWG\ belka-Model.png') no-repeat center center;
  background-size: cover;
  font-family: Arial, Helvetica, sans-serif;
  padding: 0px 30px;
  position: 0;
  top: 0;
  width: 100%;
  z-index: 100;
  box-shadow: 0 4px 10px rgba(255, 255, 255, 0.1);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 ;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

.nav-links li {
  display: inline-block;
}

.nav-links li a {
  text-decoration: none;
  color: #ecf0f1;
  font-size: 18px;
  font-weight: 500;
  padding: 10px 30px;
  border-radius: 0px;
  transition: all 0.3s ease;
  position: relative;
  display: inline-block;
}
/* ===========================
   ABOUT SECTION
=========================== */
.bim-content {
  max-width: 1200px;
  margin: 60px auto;
  padding: 40px 50px;
  background: white;
  border-radius: 16px;
  border: 1px solid #dfe6e9;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  animation: fadeIn 1s ease forwards;
}

.bim-description h2 {
  font-size: 2.2em;
  color: #000;
  margin-bottom: 20px;
  border-bottom: 2px solid #f1c40f;
  display: inline-block;
  padding-bottom: 5px;
}

.bim-description p {
  font-size: 1.1em;
  color: #555;
  line-height: 1.8;
  margin-bottom: 20px;
  text-align: justify;
  animation: fadeIn 1.5s ease forwards;
}

.bim-description h3 {
  font-size: 1.4em;
  color: #000;
  margin-top: 40px;
  margin-bottom: 15px;
  letter-spacing: 0.5px;
  border-left: 4px solid #f1c40f;
  padding-left: 10px;
  animation: fadeIn 1s ease forwards;
}

.bim-description ul {
  list-style-type: none;
  padding: 0;
}

.bim-description ul li {
  padding-left: 30px;
  position: relative;
  margin-bottom: 10px;
  color: #555;
  font-size: 1.05em;
  line-height: 1.8;
}

.bim-description ul li::before {
  content: "➤";
  position: absolute;
  left: 0;
  top: 0;
  color: #f1c40f;
  font-weight: bold;
}

/* ===========================
   CTA BUTTON
=========================== */
.button-container {
  text-align: center;
  margin-top: 50px;
}

.button-container button {
  background: linear-gradient(45deg, #2c3e50, #000);
  color: white;
  border: none;
  padding: 15px 40px;
  font-size: 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.4s ease;
  letter-spacing: 1px;
}

.button-container button:hover {
  transform: scale(1.05);
  background: linear-gradient(45deg, #b10505, #d80a0a);
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* ===========================
   RESPONSIVE DESIGN
=========================== */
@media (max-width: 768px) {
  .bim-content {
    padding: 25px;
  }
  .bim-description h2 {
    font-size: 1.8em;
  }
  .bim-description h3 {
    font-size: 1.2em;
  }
  .nav-links {
    flex-wrap: wrap;
    gap: 20px;
  }
}