body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background-color: #1a1a1a;
  color: #fff;
  overflow-x: hidden;
  padding-top: 70px; 
}

.navbar {
  background-color: #000 !important; 
  z-index: 1000;
  position: fixed;
}

.hero {
  min-height: 100vh;
  background-color: #1a1a1a;
  display: flex;
  align-items: center;
}

.navbar .navbar-nav .nav-link {
  color: #fff !important;
  font-size: 1.2rem; 
  font-weight: 500;
  position: relative;
  transition: 0.3s;
}

.navbar .navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  width: 0%;
  height: 2px;
  left: 0;
  bottom: -4px;
  background-color: #007bff;
  transition: 0.3s;
}

.navbar .navbar-nav .nav-link:hover::after {
  width: 100%;
}

.hero-text h1 span {
  color: #007bff;
}

.hero img {
  border-radius: 15px;
  width: 80%;
  opacity: 0;
  transform: translateX(30px);
  animation: fade-in 1.8s ease forwards;
  animation-delay: 1s;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  opacity: 0;
  animation: fade-in-up 1s ease forwards;
}

.fade-in-up.delay-1 { animation-delay: 0.3s; }
.fade-in-up.delay-2 { animation-delay: 0.6s; }

.fade-in {
  animation: fade-in 1.2s ease forwards;
}

.btn-primary, .btn-outline-primary {
  padding: 16px 40px; 
  font-size: 1.2rem;  
  border-radius: 6px;
  font-weight: 600;
  transition: 0.3s;
}

.btn-primary {
  background: linear-gradient(135deg, #007bff, #33a1ff);
  border: none;
  box-shadow: 0 0 10px #33a1ff;
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px #33a1ff;
}

.btn-outline-primary {
  border: 2px solid #007bff;
  color: #fff;
  background: transparent;
}

.btn-outline-primary:hover {
  background: #007bff;
  transform: scale(1.05);
}

/* --- PORTFOLIO SEKCE --- */

/* Základní styl pro kartu */
.portfolio-card {
  border: 1px solid #333;
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  display: flex;
  flex-direction: column;
}

/* Obal pro obrázek, aby nevytekl při zvětšení */
.img-wrapper {
  height: 220px;
  position: relative;
}

.img-wrapper img {
  height: 100%;
  transition: transform 0.6s ease;
}

/* Co se stane, když najedeš myší na celou kartu */
.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 123, 255, 0.15);
  border-color: #007bff;
}

/* Jemné zvětšení obrázku při najetí na kartu */
.portfolio-card:hover .img-wrapper img {
  transform: scale(1.08);
}

/* --- PATIČKA --- */
footer {
  background-color: #000; /* Stejná černá jako u navigace */
  border-top: 1px solid #222; /* Jemná oddělovací linka od zbytku webu */
}

footer .social-links a {
  font-weight: 500;
  transition: color 0.3s ease, transform 0.3s ease;
  display: inline-block;
}

/* Změna barvy a mírné povyskočení při najetí myší */
footer .social-links a:hover {
  color: #007bff !important; 
  transform: translateY(-3px);
}

@media (max-width: 1367px) {
  .hero {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
  }

  .hero-text h1 {
    font-size: 3rem; 
  }

  .hero-text p {
    font-size: 1rem;
  }

  .hero img {
    width: 50%; 
  }

  .btn-primary, .btn-outline-primary {
    padding: 14px 30px;
    font-size: 1rem;
  }

  .navbar .navbar-nav .nav-link {
    font-size: 1rem; 
  }
}

@media (max-width: 576px) {
  .hero-text h1 {
    font-size: 2.2rem; 
  }

  .hero-text p {
    font-size: 0.9rem; 
  }

  .hero img {
    width: 180px; 
    height: auto;
    margin-top: 15px;
  }

  .btn-primary, .btn-outline-primary {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  .navbar .navbar-nav .nav-link {
    font-size: 0.95rem; 
  }
}