/* Mobilná responzivita – mobil do 600px */
@media (max-width: 600px) {
  html {
    font-size: 1rem;
  }

  main {
    padding: 18px;
    margin: 15px auto;
    border-radius: 8px;
    font-size: 1.125rem;
  }

  /* Nadpisy */
  h1 {
    font-size: 1.9rem;
  }

  h2 {
    font-size: 1.55rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  p {
    font-size: 0.95rem;
    line-height: 1.65;
  }

  /* Navigácia */
  nav a {
    padding: 10px 12px;
    font-size: 0.95rem;
  }

  .nav-container {
    gap: 8px;
  }

  /* Ovládacie prvky */
  #controls {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 18px;
  }

  #controls input,
  #controls select,
  #controls button {
    padding: 12px;
    font-size: 1.125rem;
  }

  /* Grid kariet */
  #cardGrid {
    gap: 16px;
  }

  /* Karta */
  .card {
    padding: 16px;
    border-radius: 8px;
  }

  .card .title {
    font-size: 1.15rem;
  }

  .card .quote {
    font-size: 0.95rem;
    text-align: left;
  }

  .card .source {
    font-size: 0.9rem;
  }

  /* Badge */
  .card .badge {
    font-size: 0.8rem;
    padding: 4px 10px;
  }

  /* Footer */
  footer {
    padding: 14px;
    font-size: 0.85rem;
  }
}

/* Navigácia + formulár – do 768px */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-container {
    flex-direction: column;
    align-items: center;
    max-height: 0;
    overflow: hidden;
  }

  .nav-container.active {
    max-height: 100vh;
    margin-top: 10px;
  }

  .nav-container a {
    width: 100%;
    text-align: center;
    padding: 12px 0;
  }

  #toggleLayout {
    display: none;
  }

  .search-form {
    flex-direction: column;
  }

  .search-form button {
    width: 100%;
  }
}

/* Tablet / menší desktop – 601px až 900px */
@media (min-width: 601px) and (max-width: 900px) {
  /* Hlavný obsah */
  main {
    padding: 28px;
    margin: 20px auto;
    border-radius: 10px;
  }

  /* Nadpisy */
  h1 {
    font-size: 2.1rem;
  }

  h2 {
    font-size: 1.7rem;
  }

  h3 {
    font-size: 1.35rem;
  }

  p {
    font-size: 1rem;
    line-height: 1.7;
  }

  /* Navigácia */
  nav a {
    padding: 10px 14px;
    font-size: 1rem;
  }

  .nav-container {
    gap: 12px;
  }

  /* Ovládacie prvky */
  #controls {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 22px;
  }

  #controls input,
  #controls select,
  #controls button {
    padding: 12px 14px;
    font-size: 1rem;
  }

  /* Grid kariet */
  #cardGrid {
    gap: 20px;
  }

  /* Karta */
  .card {
    padding: 20px;
    border-radius: 10px;
  }

  .card .title {
    font-size: 1.2rem;
  }

  .card .quote {
    font-size: 1rem;
  }

  .card .source {
    font-size: 0.95rem;
  }

  /* Badge */
  .card .badge {
    font-size: 0.85rem;
    padding: 5px 12px;
  }

  /* Footer */
  footer {
    padding: 16px;
    font-size: 0.9rem;
  }
}

/* Sticky ovládacie prvky – do 900px */
@media (max-width: 900px) {
  #controls {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: #ffffff;
    padding-top: 12px;
    padding-bottom: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    border-bottom: 1px solid #d6d6d6;
  }
}

/* Tablet – mierne zväčšenie základného písma */
@media (min-width: 601px) and (max-width: 1024px) {
  html {
    font-size: 1rem;
  }
}