/* Reset a základ */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #1e1e1e;
  color: #ddd;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header a navigace */
header {
  background-color: #121212;
  padding: 0.75rem 1.5rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.7);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo-text-wrapper a img {
  height: 48px;
  width: 48px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(0,0,0,0.6);
  display: block;
}

.logo-text-wrapper span {
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
  user-select: none;
}

/* Menu */
.menu {
  list-style: none;
  display: flex;
  gap: 24px;
}

.menu li a {
  color: #ddd;
  text-decoration: none;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 4px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.menu li a:hover,
.menu li a:focus {
  background-color: #ffcc00;
  color: #1e1e1e;
  outline: none;
}

/* Hamburger menu pro mobil */
.menu-toggle {
  display: none;
  font-size: 2rem;
  color: #ffcc00;
  cursor: pointer;
}

/* Nadpis */
h1 {
  color: #ffcc00;
  font-size: 2.4rem;
  font-weight: 700;
  text-align: center;
  margin: 2rem 1rem 1.5rem;
}

/* Produkty - layout */
.products-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto 4rem;
  padding: 0 1rem;
}

/* Produktová karta */
.product-card {
  background-color: #2a2a2a;
  border-radius: 12px;
  padding: 1.5rem 2rem;
  width: 280px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #ddd;
}

.product-card:hover,
.product-card:focus-within {
  transform: translateY(-6px);
  box-shadow: 0 8px 20px rgba(255, 204, 0, 0.7);
}

.product-card h3 {
  margin-bottom: 0.8rem;
  color: #ffcc00;
  font-weight: 700;
}

.product-card p {
  flex-grow: 1;
  font-size: 1rem;
  margin-bottom: 1.2rem;
  color: #ccc;
}

.product-card a.buy-btn {
  background-color: #ffcc00;
  color: #1e1e1e;
  font-weight: 700;
  padding: 12px 0;
  border: none;
  border-radius: 8px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background-color 0.3s ease;
  user-select: none;
  display: inline-block;
}

.product-card a.buy-btn:hover,
.product-card a.buy-btn:focus {
  background-color: #e6b800;
  outline: none;
}

.product-card a.buy-btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Responsivita */
@media (max-width: 768px) {
  nav {
    flex-wrap: wrap;
  }

  .menu {
    flex-direction: column;
    width: 100%;
    display: none;
    background-color: #121212;
    padding: 0.5rem 0;
  }

  .menu.active {
    display: flex;
  }

  .menu li {
    padding: 10px 1.5rem;
  }

  .menu-toggle {
    display: block;
  }

  .products-container {
    flex-direction: column;
    align-items: center;
  }

  .product-card {
    width: 90%;
    max-width: 400px;
  }
}