body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
  color: #333;
}

header {
  background: #004b3a;
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}

.header-container {
  max-width: 900px;
  margin: 0 auto;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  background: #ffd700;
  color: #000;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
}

main.inzeraty-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 2rem;
  max-width: 1100px;
  margin: auto;
}

.inzerat-card {
  background: white;
  padding: 1rem;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.inzerat-card img {
  max-width: 100%;
  border-radius: 5px;
  margin-bottom: 1rem;
}

.no-ads {
  text-align: center;
  font-size: 1.2rem;
  color: #666;
}

/* Štýl pre formulárové stránky */
form {
  background: white;
  padding: 2rem;
  border-radius: 10px;
  max-width: 600px;
  margin: 2rem auto;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

form h2 {
  margin-bottom: 1.5rem;
  text-align: center;
  color: #004b3a;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form textarea,
form select {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 1rem;
}

form button {
  background-color: #004b3a;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  width: 100%;
  margin-top: 1rem;
}

form button:hover {
  background-color: #007b5e;
}

form label {
  font-weight: bold;
  display: block;
  margin-bottom: 0.5rem;
  color: #333;
}

.success-message {
  text-align: center;
  background: #d4edda;
  color: #155724;
  padding: 1rem;
  margin: 1rem auto;
  max-width: 600px;
  border-radius: 5px;
  border: 1px solid #c3e6cb;
}

/* CENTROVANIE OBSAHU VO FORM-CONTAINER */
.form-container {
  text-align: center; /* všetko vnútri (.form-container) bude centrované */
}

/* Zmena farby názvu webu a položiek menu v hlavičke na bielu */
header h1 a,
header nav a {
  color: #fff !important;
  text-decoration: none;
}

/* Hover efekt pre menu v hlavičke */
header nav a:hover {
  color: #ffd700;
}

/* Responzívne úpravy pre mobilné zariadenia */
@media (max-width: 768px) {
  header {
    padding: 1.5rem 1rem;
  }

  .header-container {
    max-width: 100%;
    padding: 0 1rem;
  }

  .btn {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
  }

  main.inzeraty-container {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    padding: 1rem;
  }

  .inzerat-card {
    padding: 0.8rem;
  }

  form {
    padding: 1.5rem;
    margin: 1rem auto;
    max-width: 90%;
  }

  form h2 {
    font-size: 1.2rem;
  }

  form input[type="text"],
  form input[type="email"],
  form input[type="password"],
  form textarea,
  form select {
    font-size: 0.9rem;
  }

  form button {
    font-size: 0.9rem;
    padding: 0.6rem 1rem;
  }

  .success-message {
    max-width: 90%;
  }
}

@media (max-width: 480px) {
  header {
    padding: 1rem 0.5rem;
  }

  .header-container {
    max-width: 100%;
    padding: 0 0.5rem;
  }

  .btn {
    padding: 0.4rem 0.7rem;
    font-size: 0.8rem;
  }

  main.inzeraty-container {
    grid-template-columns: 1fr;
    padding: 0.5rem;
  }

  .inzerat-card {
    padding: 0.6rem;
  }

  form {
    padding: 1rem;
    margin: 1rem auto;
    max-width: 100%;
  }

  form h2 {
    font-size: 1.1rem;
  }

  form input[type="text"],
  form input[type="email"],
  form input[type="password"],
  form textarea,
  form select {
    font-size: 0.8rem;
  }

  form button {
    font-size: 0.8rem;
    padding: 0.5rem 0.8rem;
  }

  .success-message {
    max-width: 100%;
  }
}